KR101110663B1 - coating apparatus of tube lining bag - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus for a sewing unit of a tube lining bag before impregnating a thermosetting resin in a non-woven fabric of a tube lining material used for repair of a pipeline such as water supply or sewage, and in particular, a pipe lining for coating while pulling the sewing unit in both width directions. A coating device for a bag.

Description

Coating apparatus of tube lining bag

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus for a sewing unit of a tube lining bag before impregnating a thermosetting resin in a non-woven fabric of a tube lining material used for repair of a pipeline such as water supply or sewage, and in particular, a pipe lining for coating while pulling the sewing unit in both width directions. A coating device for a bag.

The conventional method of manufacturing a tubular lining bag is a folding step of folding a plate-shaped nonwoven fabric with a plastic film attached to one side thereof in the width direction to be folded, and a sewing process of sewing the folded edge to make a tubular nonwoven fabric; It consists of an expansion process of expanding and sewing the sewn edges and a coating process of coating the expanded sewing portion.

However, in the folding process, many workers are required because the workers fold and press the plate-shaped nonwoven fabric one by one, and the folding work takes a lot of time, thus decreasing productivity. In addition, when the length of the tube lining bag is long, productivity decreases because a little bit of fold is needed when the factory space is narrow.

In addition, as the folding process is similar to the folding process, the productivity is also lowered because the worker grasps both sides and pounds with a rubber hammer.

In addition, since the coating process coats the sewing portion in the unfolded state in the expansion process, when the sewing portion is less expanded, the coating is excited in the sewing portion, and the resin may be leaked in the resin impregnation process in the future.

In addition, the coating process is to be transported to match the center of the sewing portion to the coating nozzle, when the center does not fit, there is a hassle to stop the work, to adjust the center and to hold the tube lining bag in front.

In addition, there is no device for pulling the tube lining bag in the longitudinal direction in the coating process, so that the operator is pulling while working, the degree of pulling is uneven and the operator needs more.

In addition, since the folding step and the expansion step are performed by hand, it is difficult to continuously work from the folding step to the coating step, further lowering the productivity.

The present invention has been made in order to solve the above-described problems, the object of the present invention is to provide a coating device of the tube lining bag to increase the sealing effect by the coating liquid penetrates well between the sewing parts by coating again while pulling the expanded sewing part. .

In order to achieve the above object, the coating device of the tube lining bag according to claim 1 of the present invention,

A coating nozzle unit disposed on the sewing unit of the tube lining bag; It is disposed on both sides of the coating nozzle portion, and includes a pull extension to extend the sewing portion toward both sides of the width of the tube lining bag.

According to this constitution, defects such as lifting of the cured coating liquid due to sufficient penetration of the coating liquid therebetween in the width direction of the sewing portion can be sufficiently blocked.

Coating apparatus of the tube lining bag of Claim 2 of this invention,

The pull extension portion is composed of a pull expansion roller portion in which the rotating shaft is inclined with respect to the traveling direction of the tube lining bag, the outer side of the rotating shaft is preferably inclined to be located in the forward direction relative to the inner direction of the rotating shaft.

Coating apparatus of the tube lining bag of Claim 3 of this invention,

The pull extension roller parts are preferably installed in the approach retreat portion for approaching or retreating along the width direction of each other.

According to this structure, according to the width | variety length of a tube lining bag, when the position of a sewing part is not located in the center of a width, the distance between pulling extension rollers can be adjusted and a maximum width direction pulling force can be obtained.

Coating apparatus of the tube lining bag of Claim 4 of this invention,

A pressure cooling roller part is disposed at the rear of the coating nozzle part, and the pressure cooling roller part includes an upper roller part for pressurizing and cooling the sewing part of the tube lining bag, and a lower roller part placed on a lower surface of the tube lining bag. It is preferable that a coating limiting groove is formed to limit the coating width of the sewing portion.

According to this structure, the thickness of a coating layer can be kept constant, and when it is thinner than the impregnation pressure of curable resin later, it can prevent a burst and can improve the quality of a product very much.

As is apparent from the above description, the present embodiment has the following effects.

It is disposed on both sides of the coating nozzle portion disposed on the sewing portion of the tube lining bag and extended by pulling the sewing portion toward both sides of the width of the tube lining bag, so as to sufficiently increase in the width direction of the sewing portion and to lift up the cured coating liquid due to sufficient penetration of the coating liquid therebetween. The same defect can be sealed off.

In addition, by pulling or extending the pull extension rollers along the width direction of each other, if the position of the sewing portion is not located at the center of the width according to the width of the tube lining bag, the distance between the pull extension rollers is adjusted to maximize the width direction pull force. You can get it.

In addition, by forming a coating limiting groove for limiting the coating width of the sewing portion in the lower roller portion, the thickness of the coating layer can be kept constant, and prevents bursting when it is thinner than the impregnation pressure of the curable resin. Can be improved.

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

First embodiment (Manufacturing process of large diameter tube lining bag)

1 is an overall process diagram schematically showing a manufacturing process of a large diameter tube lining bag according to a preferred embodiment of the present invention, Figure 2 is a side view showing the primary sewing process line of Figure 1, Figure 3 is 4 and 5 are perspective views showing before and after lifting and lowering of the support roller unit of FIG. 3, and FIG. 6 is a push-out process line of FIG. 3. 7 is a side view illustrating the coating process line of FIG. 1, FIG. 8 is an enlarged perspective view of the coating process line of FIG. 7, and FIG. 9 is a coating and pulling of the coating process line of FIG. 7. 10 is an enlarged perspective view of the process, and FIG. 10 is an enlarged perspective view of the centering process of the coating process line of FIG. 7.

As shown in FIG. 1, the manufacturing process line of the tube lining bag according to the first embodiment is largely composed of a sewing process line 10, an expansion process line 30, and a coating process line 50.

As shown in FIG. 1, the sewing process line 10 includes a primary sewing process line 10A and a secondary sewing process line 10A.

 As shown in FIG. 2, the primary sewing process line 10A has one side edge which is conveyed in a state where the first plate-shaped nonwoven fabric 11a and the second plate-shaped nonwoven fabric 11b are stacked up and down by the sawing machine 13. This is the first sewing process.

That is, each of the first plate-shaped nonwoven fabric 11a and the second plate-shaped nonwoven fabric 11b is provided by winding a plate-shaped nonwoven fabric having a plastic film on one surface thereof in a roll form.

As the roll-shaped first plate-shaped nonwoven fabric 11a and the second plate-shaped nonwoven fabric 11b are conveyed through the feed rollers 15a, 15b, and 15c while the film is placed up and down, the sawing machine 13 The primary sewing is successively performed to form the primary sewing portion 12a.

Of course, it is preferable to cut both edges of the plate-shaped nonwoven fabrics 11a and 11b to a desired size with a cutter before performing the primary sewing.

Each of the feeding rollers 15a, 15b, and 15c is composed of a driving roller and a lifting roller. As shown in the feeding roller 15c of FIG. 2, the driving lower roller 15c 'and the lifting upper roller 15c' are shown. It is composed of '). In addition, the driving lower roller 15c 'receives the rotational power of the sawing machine 13 connected to the motor 14a via the crank 14b and the one-way clutch 14c.

In addition, only the feeding roller 15c in front of the sawing machine 13 among the feeding rollers 15a, 15b, and 15c may be used as the transfer roller. In this case, the opposite rotation axis of the feeding roller 15c is engaged with the gear 14d as shown in FIG. 2, thereby providing a larger rotational force than the rotational force by the existing pressure frictional force.

The nonwoven fabric 11c on which the primary sewing portion 12a is formed passes through the sawing machine mechanism 13A disposed in front of the expansion process line 30 shown in FIG. 12b).

Of course, in the primary sewing process line (10A), the sawing machine 13 may be sewn at both edges and sewn at the same time, but when sewing at the same time, the upper nonwoven fabric (11a) and the lower nonwoven fabric (11b) are bulged without being stretched in a later process. Provide the cause of the error.

As such, when the sawing machine mechanism 13A of FIG. 1 is used for both primary and secondary sewing, the sewing process is intermittently made, and when a separate sawing machine mechanism is further used, the sewing process is continuously performed. It is preferable to manufacture according to site conditions (installation space etc.).

The tube lining bag 11d on which the primary sewing portion 12a and the secondary sewing portion 12b are formed is expanded through the expansion process line 30.

That is, the expansion process is a process for obtaining the easy coating surface and the reliable sealing surface of the sewing portions 12a and 12b in a later coating process by expanding the edges of the sewing portions 12a and 12b to face each other. .

As shown in FIG. 3, the expansion process line 30 includes a main expansion process line 310 and an auxiliary expansion process line 370.

The main expansion process line 310 is composed of a support roller 320 supporting the bottom surface of the tube lining bag 11d and an expansion jig 330 inserted into the tube lining bag 11d.

The supporting roller part 320 is comprised by the roller support bracket 321 arrange | positioned in front and back, and the several support rollers 323 provided between this roller support bracket 321. As shown in FIG.

The roller support bracket 321 is composed of a vertical support bracket 321a and a horizontal support bracket 321b extending in a horizontal direction from an upper end of the vertical support bracket 321a.

The support roller 323 includes a lower support roller 323a installed below the vertical support bracket 321a, an upper support roller 323b installed along the horizontal support bracket 321b, and a lower support roller 323a. The middle support roller 323c is provided between the upper support rollers 323b. Therefore, it is arrange | positioned like a staircase and it is convenient to support the tube lining bag 11d.

In addition, it is preferable that a flange-type widthwise guide piece 325 for guiding the width of the tube lining bag 11d is slidably installed on the lower support roller 323a and the upper support roller 323b.

In addition, the roller support frame 321 is preferably installed to be elevated along the frame 311 by the lifting unit 340 (see Figs. 4 and 5).

The lifting unit 340 has a guide groove 341 formed in the frame 311, a guide bar 343 that moves up and down along the guide groove 341 while supporting the roller support bracket 321, and one end thereof. The other end of the horizontal support bracket (321b) is the drive chain 345 is fixed to the vertical support bracket (321a), and the upper sprocket (not shown) and the lower sprocket 347 is disposed at the top and bottom of the chain 345 to guide the And a drive motor (not shown) capable of forward and reverse rotation for transmitting power to the lower sprocket 347.

In addition, the weight 350 is preferably arranged on the support roller 320.

That is, the weight 350 is installed at one end of the chain 353 across the guide sprocket 351 provided at the frame 341, and the other end of the chain 353 is fixed to the horizontal support bracket 321b.

In addition, the weight 350 is provided with a C-shaped guide piece 357 which is guided so that the lower end is guided up and down by a guide rod 355 fixed to the frame 311.

The weight 350 allows the support roller 320 to receive upward force, thereby preventing any drop and smoothly raising.

The expansion jig 330 is preferably composed of a bar 331, the parabolic expansion piece 333 is provided on both ends of the bar 331.

Since the parabolic extension piece 333 has a parabolic shape that is convex outward, the parabolic extension piece 333 serves to well hold the position of the edge when the tube lining bag 11d is expanded.

On the other hand, it is preferable that the horizontal guide roller 360 is installed in the frame 311 below the support roller 320.

The horizontal guide roller 360 guides the tube lining bag descending in the vertical direction while supporting the expansion jig 330 in the horizontal direction, so that it can be continuously transported in an expanded state by the feeding drive roller 380. do. The feeding drive roller 380 is composed of a lower drive feed roller 381 that is driven to rotate by a drive motor (not shown), and an upper idle feed roller 383 that moves up and down.

The horizontal guide roller portion 360 includes a pair of vertical guide rolls 361 which are installed before and after, and transition guide rolls 363 and 365 gradually disposed on the lower front side of the pair of vertical guide rolls 361. And a horizontal guide roll 367 provided at predetermined intervals slightly below the transition guide roll 365.

Since the expansion jig 330 is placed above the vertical guide rolls 361, the expansion process is performed, so that the expanded jig 330 does not move and the unfolded edge is folded well to increase the transfer efficiency.

In addition, it is preferable that the width direction guide piece 368 slidably mounted to the horizontal guide roll 367 to guide the edge of the width.

Accordingly, the bottom surface of the expansion jig 330 is continuously supported by the tube lining bag 11d while being supported by the vertical guide roll 361.

On the other hand, it is preferable that the additional expansion process line 370 is disposed in front of the feeding drive roller 360.

That is, in the additional extension process line 370, although the sewing portions 12a and 12b of the tube lining bag 11f passing through the expansion jig 330 are placed on the center line of the width, the horizontal guide roller portion 360 It is an additional process to reduce the risk that the sewing portion 12a, 12b is less butt while passing through.

Further expansion process line 370 is preferably composed of a pressing expansion roller portion and a pressure expansion roller portion as shown in FIG.

The pressure expanding roller portion extends between the upper and lower rollers 371 and 373 to iron the sewing portions 12a and 12b.

The upper roller 371 is installed to be able to move up and down, and placing the uneven parts 371a and 371b along the rotation axis of the upper roller 371 is more deformable than the overall pressing because it presses sparsely when it is pressurized, so that wrinkles occur in the width direction. Not good. Of course, the sewing portion (12a) (12b) is in the position pressed by the convex portion (371b).

On the other hand, it is preferable that the push expansion roller portion 375 for pressing the upper surface sewing portion 12b before passing through the upper and lower rollers 371 and 373 is further provided.

The push expansion roller portion 375 includes a push caster 376, a sliding portion 377 and a lifting portion 378 that support the push cast 376 so as to slide left and right and up and down.

Sliding portion 377 is composed of a fixed screw bar (377b) and a transfer nut (377c) is fastened to the fixed screw bar (377b) rotatably fixed to the fixed bracket (377a) mounted on the horizontal frame (313). It is.

The elevating portion 378 is constituted by an elevating screw bar 378a supporting the push caster 376 at a lower end thereof, and a fixing nut 378b to which the elevating screw bar 378a can be elevated.

The fixing nut 378b is fixed to the conveying bracket 378c which is conveyed together with the conveying nut 377c.

The press caster 376 is composed of a roll 376a rotatable 360 degrees with respect to the elevating screw bar 378a, so that the press caster 376 can be transported while being pressed without a large resistance when being transferred from the edge toward the sewing portion 12b.

In addition, the pressing expansion roller portion 375 also has an effect of pulling in the longitudinal direction of the tube lining bag because it is pressed from the top in the state not provided.

The tube lining bag 11g passing through such an expansion process is transferred to the coating process line 50 of FIG. 7.

The coating process line 50 coats the extension part 510 which pulls and expands the sewing parts 12a and 12b and the sewing parts 12a and 12b in the pulled state as shown in FIGS. 7 to 9. It consists of a coating nozzle portion 530.

The coating nozzle unit 530 is composed of a coating nozzle 531 and a supply source 533 for supplying a gel type coating liquid to the coating nozzle 531.

The coating nozzle 531 is initially coated slightly wider than the width of the sewing parts 12a and 12b, and then again coated to be wider than the width of the coated part to completely seal the sewing part.

That is, after narrowly coating the sewing portion 12a, a narrow coating process of inverting and narrowly coating the sewing portion 12b is performed. After the narrow coating process is completed, the nozzle is replaced with a nozzle having a longer width direction, and then the wide coating process is completed on the narrow coating upper layer, respectively.

Particularly, when performing the narrow coating process, if the sewing extension part 510 is pulled in the direction of arrow A (the width direction with respect to the line of the sewing part), the extension part 510 is once again implemented simultaneously. The coating liquid penetrates well into the sewing gap, and the adhesion of the coating layer perfectly prevents water leakage during the impregnation of the thermosetting resin.

The pulling extension part 510 is composed of a pulling extension roller 510, the rotation axis 511 is inclined downward at an angle with respect to the axis o in the width direction as shown in Figure 9a (in Figure 9 The outer side of the rotation shaft 511 is disposed closer to the front side in the advancing direction than the inner side thereof, and is pulled in the arrow A direction.

Pull extension roller 510 is preferably installed in the approach retreat 520 to approach or retreat each other according to the width length of the tube lining bag (11g).

This approach retreat part 520 is approached with each other according to the width length of the tube lining bag, or when the position of the sewing part is not located in the center of the width at the same time or respectively adjust the distance between the extension rollers in the maximum width pull Gain strength.

The access recess 520 is a movable nut 523 provided with a pull extension roller 510, a fixed screw bar 521 to which the movable nut 523 is fastened, and a support for rotatably supporting the fixed screw bar 521. The bracket 525 is comprised. The support bracket 525 is fixed on the frame 503.

As described above, when the tube lining bag 11h coated on the coating nozzle unit 530 passes through the pressure cooling roller unit 540 and the pressing rollers 580 and 590, the tube lining bag 11i of the coating layer is press-cured. ) Comes out.

As shown in FIGS. 7 and 8, the pressurized cooling roller part 540 includes an upper roller part 541 and a lower roller part 546.

The upper roller portion 541 includes a cooling circulation roll 542 which is rotatably supported at both ends, a pressure cooling roll 543 protruding from the center of the cooling circulation roll 542, and the pressure cooling roll 543. Concentrated pressure cooling roll 544 is formed to protrude in the center of the.

Cold water is supplied to and discharged from the cooling circulation roll 542 through the cooling circulation pipe 545.

The pressure cooling roll 543 is a roll pressing in a wider width direction than the sewing portion 12a or 12b, and the concentrated pressure cooling roll 544 substantially pressurizes and cools the resin coating liquid by the maximum limit width of the coating.

The lower roller portion 515 is positioned below the upper roller portion 541, and as shown in FIG. 8, a coating limit groove 547 is formed so that the concentrated pressure cooling roll 544 may be coated even if the coating liquid is pressurized. It is no longer pressed by the limiting groove 547 so as not to be thinned. Therefore, the thickness of the coating layer can be made constant by the structure of the coating limit groove 547.

Thus, the tube lining bag 11i passing through the pressure cooling roller unit 540 sufficiently compresses the coating layer while passing through the primary pressing roller 580 and the secondary pressing roller 590, and the final tube lining bag 11j is Is made.

The lining bag 11j is impregnated in the impregnation step, whereby a pipe lining material used for repairing the pipe line is manufactured.

On the other hand, it is preferable that the centering adjusting unit 560 is further disposed to align the center line of the sewing unit 12a or 12b in front of the pulling extension 510 and the coating nozzle unit 530.

That is, the center line of the sewing portion 12a or 12b of the tube lining bag 11g having a predetermined length should be conveyed to the center of the coating nozzle portion 530.

However, since the roll does not feed evenly in the whole width direction, it tends to be distorted.

It is very difficult for the worker to turn it to meet the center, so the productivity is significantly lowered due to the hassle of stopping the work and releasing the pressurization of the pressure-cooling roller unit 540 and then adjusting it.

In addition, when the tube lining bag 11g is pulled to some extent in the longitudinal direction when passing through the coating nozzle part 530, the coating liquid penetrates well in the longitudinal direction of the sewing part 12a or 12b, thereby leaving the cured coating layer. Can be completely prevented.

In order to solve this, it is preferable that the centering adjusting unit 560 shown in FIG. 10 be installed.

The centering adjusting unit 560 serves to pull the tube lining bag 11g in the longitudinal direction of the tube lining bag 11g according to the crimping degree while fitting the centering while conveying the roller lining bag 11g in the width direction.

As shown in FIGS. 8 and 10, the centering adjusting unit 560 includes a centering roller 560a and a centering roller transfer part 560b for transferring the centering roller 560a in the width direction to adjust the centering. have.

The centering roller 560a is composed of an upper centering roller 561a and a lower centering roller 563a.

The upper centering roller 561a is rotatably supported (i.e., idle roller) by the elevating drive cylinder 561 mounted on the bracket 563, and the lower centering roller 563a is also rotatably supported by the bracket 563. . Therefore, in addition to the effect of crimping the tube lining bag, it is possible to give again the effect of pressing the sewing portion.

The centering roller feed section 560b includes a screw rod 561b rotatably fixed to the frame, a transfer nut 563b slidably coupled to the left and right according to the rotation of the screw rod 561b, and the transfer nut 563b. It consists of the slider 565b fixed to ().

The slider 565b is provided on a support bracket 566b for supporting the bracket 563, a connection bracket 567b 'for connecting the support bracket 566b and the transfer nut 563b, and a support bracket 566b. It consists of the guide rod 567b.

As shown in Fig. 10A, the guide rod 567b is slidably inserted into the guide pipe 568b fixed to the frame.

Accordingly, when the screw rod 561b is rotated forward and backward, the feed nut 563b is also conveyed in the width direction, and the centering roller 560a is moved in the width direction while the slider 565b is conveyed in the width direction with respect to the guide pipe 568b. To adjust the centering.

On the other hand, the centering roller 560a is preferably provided with a rotation speed control unit 570 to reduce or stop the speed of idle rotation.

That is, the rotational speed control unit 570 is fitted to the outer circumferential surface of the shaft 572a as shown in FIGS. 8 and 10B, and a sleeve tube 576 having a flange 576a at one end thereof, and the sleeve tube 576. A disk ring 574 provided on both sides of the driven sprocket 572 rotatably fixed to the bush 579 coupled to the outer circumferential surface of the head), a spring 575 for pressing both side surfaces of the disk ring 574, The nut 578 is fastened to the male screw 576b formed at the other end of the sleeve tube 576 to adjust the elastic force of the spring 575.

The shaft 572a is fixedly supported by the slider 565b or the bracket 563.

The nut 578 serves to decelerate or stop by adjusting the pressure of the spring 575 according to the fastening pitch.

Therefore, the rotation of the centering roller 560a is relatively free and rotates relatively slowly according to the feeding speed of the tube lining bag, so that the tube lining bag having a relatively high feed speed is pulled backward.

The following describes the process sequence of the first embodiment having the above-described process line.

As shown in FIG. 1, the 1st winding roll which wound the 1st plate-shaped nonwoven fabric 11a with a film on the upper surface, and the 1st winding roll which wound the 2nd plate-shaped nonwoven fabric 11b with film on the lower surface. Is placed up and down.

The nonwoven fabrics of the first and second winding rolls arranged up and down are piled up and down and bite by the feeding roller 15c or the feeding rollers 15a, 15b, and 15c, and then sawed. The primary sewing unit 12a is formed.

After the primary sewing unit 12a is formed, the other edge is sewn to sew the tube lining bag 11d having the secondary sewing unit 12b formed in the width direction with respect to the length direction of the overall length through the expansion jig 330. The portions 12a and 12b are positioned on the width center line.

As such, the expansion jig 330 speeds up the expansion process of the tube lining bag and at the same time folds the edges of both sides of the expansion.

This expanded tube lining bag (11e) is passed through the horizontal guide roller portion 360 and the additional expansion process line 370 to produce a tube lining bag (11g) with the edges of the sewing portions 12a, 12b unfolded against each other. do.

Since the tube lining bag 11g is centered at the centering adjusting part 560 or is pulled in the longitudinal direction, the first narrow coating is performed at the coating nozzle part 530 while being pulled in the width direction at the pulling extension 510. The penetration of the coating liquid is ensured by the thread gap of the sewing part, which completely eliminates the fear of being released.

In addition, by applying a brake to the roller of the centering adjustment unit 560 also pulls in the longitudinal direction of the tube lining bag, the coating liquid can surely penetrate the sewing portion and can increase the bonding strength to each other.

After the first narrow coating has been performed, turn over and perform the second narrow coating in the same manner.

After the secondary narrow coating is performed, the nozzle of the coating nozzle unit 530 is changed to the wide nozzle, and then the wide coating is divided into the primary and the secondary in the same manner as the narrow process.

In the narrow coating and the wide coating, the plate-like gel type coating liquid can continuously obtain a predetermined thickness by the interaction between the concentrated pressure cooling roll 544 and the coating limiting groove 547. Therefore, since the thickness of the coating layer is regularly performed along the entire length, it is possible to prevent the quality deterioration due to the irregular thickness of the coating layer in advance.

Second embodiment (Manufacturing process of tube lining bag for small diameter)

11 is an overall process diagram schematically showing a manufacturing process of a small diameter tube lining bag according to a preferred embodiment of the present invention, Figure 12 is a perspective view showing a grounding process and a sewing process of FIG.

As shown in Figs. 11 and 12, the process of the tube lining bag of the second embodiment is almost similar to the process of the tube lining bag of the first embodiment, but since the sewing portion is finished first, the folding and folding process is performed after folding first. Do the process.

In the folding process, the pair of guide rolls 361 of the horizontal guide rollers 360 replaces the function of the folding rollers in the expansion process of the first embodiment.

That is, as shown in Fig. 11 and 12, the plate-shaped nonwoven fabric 11 with the film on the outer surface is placed on the support roller portion 320, and then pulled down to be folded while gradually folding so that the film is placed on the outside By passing between the pair of guide rolls 361, the plate-shaped nonwoven fabric is continuously transferred to the folded nonwoven fabric 11 ', which is then sewn by the sawing machine 13 of the sewing processing line. ) Is formed to simply form a tube-lining bag having a predetermined length.

The horizontal guide roller portion 360 of the second embodiment includes a folding roller and a horizontal guide roller.

The folding roller corresponds to a pair of vertical guide rolls 361 installed before and after.

The horizontal guide rollers include transition guide rolls 363 and 365 gradually disposed on the lower front side of the pair of vertical guide rolls 361, and horizontal guide rolls provided at predetermined intervals slightly below the transition guide rolls 365. 367.

After the sewing process is finished, the tube lining bag is positioned on the center line of the sewing unit 12 through the expansion process as in the first embodiment, and the center line performs the coating process of narrow coating and wide coating on the sewing unit 12. To produce the final tube-lining bag.

As described above, although described with reference to a preferred embodiment of the present invention, the present invention can be variously modified or modified without departing from the spirit and scope of the present invention described in the claims Those skilled in the art will appreciate.

The present invention can be applied to any product that extends and coats the sewing unit.

1 is an overall process diagram schematically showing a manufacturing process of a large diameter tube lining bag according to a preferred embodiment of the present invention.

Figure 2 is a side view showing the primary sewing process line of Figure 1;

Figure 3 is a perspective view showing a line of the secondary sewing process, expansion process, pressing expansion process of Figure 3;

4 and 5 are perspective views showing before and after the lifting and lowering of the support roller of FIG. 3.

Figure 6 is an enlarged perspective view of the push spread process line of FIG.

7 is a side view of the coating process line of FIG.

FIG. 8 is an enlarged perspective view of the coating process line of FIG. 7; FIG.

9 is an enlarged perspective view illustrating a coating and pulling process in the coating process line of FIG. 7;

9A is a plan view for explaining a pulling step.

10 is an enlarged perspective view illustrating a centering process of the coating process line of FIG. 7.

10A is a cross-sectional view illustrating the transverse feed of FIG. 10.

10B is a cross-sectional view illustrating the rotational speed reduction unit of FIG. 10.

11 is an overall process diagram schematically showing a manufacturing process of a small diameter tube lining bag according to a preferred embodiment of the present invention.

12 is a perspective view illustrating a grounding process and a sewing process of FIG. 11;

<Explanation of symbols for the main parts of the drawings>

10: Sewing process line 10A, 10B: 1st, 2nd sewing process line

11,11a, 11b: plate nonwoven fabric 11c: primary sewing nonwoven fabric

11d: 2nd sewing nonwoven fabric (pipe lining bag)

12a: 1st sewing part 12b: 2nd sewing part

13: sawing machine 13A: sawing machine mechanism

14a: drive motor 14b: crank

14c: one-way clutch 14d: gear

15a, 15b, 15c: feeding roller 30: expansion process line

310: main expansion process line 311: frame

320: support roller portion 321: roller support bracket

323: support roller 330: expansion jig

340: lift 341: guide groove

343: guide bar 345: drive chain

347: lower sprocket 350: weight

351: guide sprocket 353: chain

355 guide bar 357 guide

360: horizontal guide roller portion 361: vertical guide roll (folding roller portion)

370: additional expansion process line 371,373: pressure expansion roller part

375: push expansion roller unit 380: feeding drive roller

50: coating process line 510: pull extension

511: rotating shaft 515: lower surface roller

517: lift cylinder 520: approaching retreat

521: fixed screw bar 523: movable nut

530: coating nozzle part 540: pressure cooling roller part

541: upper roller portion 542: cooling circulation roll

543: pressure cooling roll 544: concentrated pressure cooling roll

545: cooling circulation tube 546: lower surface roller portion

547: coating limited groove 560: centering control unit

560a: centering roller 561: driving cylinder for elevating

563: Bracket 561a: Upper centering roller

563a: lower centering roller 560b: centering roller feed section

561b: screw rod 563b: feed nut

565b: Slider 567b: Guide Bar

568b: guide pipe 570: rotational speed control unit

571: driving sprocket 572: driven sprocket

573: Chain 574: Disc Ring

575: spring 576: sleeve tube

576a: Flange 576b: Male thread

578 nut 579 bush

580: 1st pressing roller 590: 2nd pressing roller

Claims (4)

A pulling extension part 510 which extends in the width direction of the sewing part by pulling the sewing part of the tube lining bag conveying in the longitudinal direction of the tube lining bag toward both widths of the tube lining bag; Coating device of the tube lining bag comprising a coating nozzle portion (530) for coating the sewing portion in the pulled state. The method of claim 1, The pull extension portion is composed of a pull extension roller portion is disposed inclined rotation axis with respect to the traveling direction of the tube lining bag, The outer side of the rotary shaft is inclined to be positioned in front of the direction of travel relative to the inside of the rotary shaft inclined coating apparatus of the bag. 3. The method of claim 2, Apparatus for coating the tubular lining bag is installed on the retracting portion for the pull extension roller portion to approach or retract along the width direction. The method according to any one of claims 1 to 3, The pressurized cooling roller part is disposed at the rear of the coating nozzle part, The pressurized cooling roller part is composed of an upper roller part for pressurizing and cooling the sewing part of the tube lining bag, and a lower roller part placed on the lower surface of the tube lining bag, The bottom roller portion coating device of the tube lining bag is formed with a coating limiting groove for limiting the coating width of the sewing portion.

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