KR100893077B1 - Preparation of water proof sheet and fixing-shell attaching apparatus and method for the same - Google Patents

Abstract

A stationary blade attaching apparatus of the waterproof sheet is provided that plural staples fix a stationary blade and a waterproof sheet along the longitudinal direction since the control unit can control the stationary blade joint unit automatically. A stationary blade attaching apparatus of the waterproof sheet comprises a sheet transfer unit(22) transferring the waterproof sheet along the longitudinal direction thereof, a stationary blade feeding unit(24) supplying the stationary blade to the longitudinal direction on the drainage non-woven of the transferred waterproof sheet, and a stationary blade joint unit(26) welding the stationary blade on the drainage non-woven.

Description

Manufacture of Waterproof Sheet and Fixing Wing Attachment Apparatus and Method for It {PREPARATION OF WATER PROOF SHEET AND FIXING-SHELL ATTACHING APPARATUS AND METHOD FOR THE SAME}

The present invention relates to the manufacture of a waterproof sheet used for the waterproof construction of the concrete structure and the waterproofing method of the tunnel, and more specifically, a device for attaching the waterproof sheet having a fixed wing and the fixed wing to the nonwoven fabric for drainage of the waterproof sheet. It is about.

Generally, waterproof structures are required for transport, mining, or underground installation of various equipment (eg, electric power facilities), for example, railway waterproof, underground waterproofing, road waterproofing, mining waterproofing, water supply or sewage waterproofing, It is used for power equipment. The inflow of water (especially groundwater) from structures such as tunnels occurs in any form of waterproofing, and the importance of waterproofing to cope with the inflow of water has long been recognized. In addition, among many defects caused by waterproof construction, it is known that defects caused by sub-construction of waterproof construction occupy a considerable part.

As an example of the existing waterproofing method, when constructing concrete lining in an excavation tunnel in which shotcrete is poured, the non-woven fabric for drainage induction (or drainage nonwoven fabric) is fixed to the inner surface of the tunnel using a tableting nail and a landel. A method of thermally bonding a waterproof membrane made of an opaque waterproof ECB (Ethylene Copolymer Bitumen) resin to a landel on a drainage nonwoven fabric is known. In this case, the drainage nonwoven fabric and the randel fixed thereon are made of a process of melting the randel surface and the opaque ECB waterproof sheet by heat fusion bonding using a high temperature hot air (600 ° C.). Such a process is performed using only the hand's senses in an invisible position, causing various problems in construction, such as the drainage nonwoven fabric bonded under the landel being carbonized by high heat. In addition, the fixed position of Landel is arbitrarily selected in the position of 40 ~ 60cm hand into the width (2.0m) of the waterproof sheet and fixed regardless of the curvature of the shotcrete bottom.

In order to solve the above problems, prior to waterproof construction, the technique of manufacturing a waterproof sheet by point fusion bonding the drainage nonwoven fabric on the resin waterproof membrane, and fixing the nonwoven fabric material to easily attach the waterproof sheet to the inner surface of the tunnel A technique for connecting the wings by sewing has been proposed by the applicant, and these techniques are disclosed in Patent No. 644778 and Utility Model Registration 265644.

According to the disclosed technology, a thread knot is formed on the fixed wing of the nonwoven fabric and the drainage nonwoven fabric by using a sewing machine, which causes the production line to stop when the thread knot is defective or the thread knot is broken during operation. . In addition, the related art has a difficulty in connecting a nonwoven fabric for drainage to a waterproof membrane made of a resin material to manufacture a waterproof sheet and a process for sewing a nonwoven fabric for drainage and a fixed wing in one line.

Therefore, the technical problem of the present invention, under the automatic line, without using a sewing machine, by attaching a fixed blade on the nonwoven fabric for drainage of the waterproof sheet in a convenient and convenient one-line process, the existing thread knot failure and thread It is to solve various problems such as the occurrence of defects caused by this break.

According to one aspect of the invention, there is provided a fixed wing attachment device for attaching a fixed wing in the longitudinal direction on the nonwoven fabric for drainage of the waterproof sheet. The fixed wing attachment device, the sheet conveying unit configured to convey the waterproof sheet in the longitudinal direction; A fixed blade supply unit configured to supply the fixed blade in a longitudinal direction on a nonwoven fabric for drainage of the waterproof sheet to be transferred; It is installed in the transfer path of the waterproof sheet and the fixed blade, and comprises a fixed wing bonding unit configured to bond the fixed blade on the drainage nonwoven fabric.

The stator blade joining unit may include a hot wind generating unit for applying hot air to the joint site where the stationary wing and the nonwoven fabric for drainage are joined, and a compression roller unit for compressing the joint site to which the hot wind is applied.

The stator blade joining unit may be a thermal coupler that presses the joining site while applying heat to a joining site where the stator blade and the drainage nonwoven fabric are joined.

In addition, the fixed wing bonding unit may be a high frequency bonding machine including a high frequency generating unit for applying a high frequency to the bonding site where the fixed wing and the nonwoven fabric for drainage is joined. Alternatively, instead of the high frequency adapter, an ultrasonic adapter may be used, which includes an ultrasonic generator for applying ultrasonic waves to the bonding site. In narrow view, high frequency and ultrasonic waves are distinguished, but in broad terms, high frequency may be a frequency corresponding to high frequency among ultrasonic waves or more. The narrow high frequency bonding machine can bond the fixed blade and the drainage nonwoven fabric with a stronger bonding force than the narrow ultrasonic bonding machine.

In addition, the fixed blade joining unit may be a stapler configured to put a staple while pressing the joining portion is bonded to the fixed wing and the non-woven fabric for drainage.

According to another aspect of the invention, the step of conveying the waterproof sheet having a nonwoven fabric for drainage on one side in the longitudinal direction; Supplying a fixed wing in the longitudinal direction on the nonwoven fabric for drainage of the waterproof sheet; In the transfer path of the waterproof sheet and the fixed blade, using a heat, hot air, high frequency, ultrasonic or staples, there is provided a fixed wing attachment method comprising the step of bonding the fixed blade on the drainage nonwoven fabric.

According to another aspect of the invention, the waterproof film of the resin material; A drainage nonwoven fabric integrally bonded to one surface of the waterproof membrane; It includes an elongated fixed wing bonded to the drainage nonwoven fabric in a longitudinal direction, wherein the fixed wing is made by fusion on the drainage nonwoven fabric by heat, hot air, high frequency or ultrasonic waves, or by a staple It may be made by bonding in the longitudinal direction on the drainage nonwoven fabric.

At this time, the fixed wing, it may be formed of any one selected from a non-woven fabric, fabric cloth, synthetic resin material.

The present invention, without the use of a sewing machine, by attaching a fixed blade on the nonwoven fabric for drainage of the waterproof sheet, can solve the conventional problem that the production line is stopped due to poor thread knots, lamination process of the nonwoven fabric and waterproof membrane for drainage And there is an advantage that it is easy to ensure the continuity of the process of attaching the fixed wing to the drainage nonwoven fabric.

1 is a block diagram showing an apparatus for manufacturing a waterproof sheet for induction of drainage according to an embodiment of the present invention, Figure 2 is a more detailed description of the fixed wing attachment device that is part of the waterproof sheet manufacturing apparatus shown in FIG. 3 (a) and 3 (b) illustrate a waterproofing sheet for drainage induction (hereinafter, referred to as a 'waterproof sheet') that may be manufactured by the apparatus shown in FIG. 1.

Referring to FIG. 3, in the waterproof sheet manufactured according to the embodiment of the present invention, a plurality of thermal fusions of a non-woven fabric for drainage induction (2b; hereinafter referred to as 'drainage nonwoven fabric') on the waterproof membrane 2a made of a resin material It consists of a structure laminated | stacked by the part 2c.

In this case, each of the heat welding portion 2c is preferably a point welding portion arranged in rows and columns, the waterproof sheet having the point welding portion, can be produced with a small failure rate, compared to any waterproof sheet having a line welding portion , The elongation in both directions can be maintained substantially constant, and also, there is an advantage that the shrinkage of the waterproof membrane 2a at the time of local heating for the point welding is small. It is preferable that the waterproof film 2a is made of a transparent V.E resin mixed with an ultra low density polyethylene (VLDPE) resin based on an ethylene vinyl acetate (EVA) resin. However, the material of the waterproof film 2a is not limited to the present invention and various kinds of resin materials may be used.

On the drainage nonwoven fabric 2b, a fixed wing 6 made of a nonwoven fabric material for attaching the waterproof sheet to the waterproof inner wall of the tunnel is provided. Only one part of one side of the stationary blade 6 is joined in the longitudinal direction on the drainage nonwoven fabric 2b. At this time, the fixed blade 6 may be point fusion or line fusion on the drainage nonwoven fabric (2b). Figure 3 (a) shows a structure in which the fixed blade 6 is bonded to the nonwoven fabric (2b) for drainage of the waterproof sheet by the viscous welding portion (6a) formed in a long line, b) shows a structure in which the fixed blade 6 is bonded to the nonwoven fabric 2b for drainage of the waterproof sheet by an elongated pre-welded portion 6b.

According to a preferred embodiment of the present invention, the material of the fixed wing 6 is used a nonwoven material, but this is not limiting the present invention, in addition to the nonwoven material, fabric cloth or a flexible synthetic resin material may be used.

Hereinafter, with reference to FIGS. 1 and 2, the fixing blade attachment device and the waterproof sheet manufacturing apparatus including the same for attachment of the above-described fixing blade will be described in more detail.

Referring to FIG. 1, the waterproof sheet manufacturing apparatus 1 according to the present embodiment includes a sheet laminating apparatus 10 and a fixed wing attachment device 20. The sheet lamination apparatus 10 and the fixed blade attachment device 20 are continuously installed with each other, and the lamination process of the nonwoven fabric 2b for drainage to the waterproofing film 2a and the attachment process of the fixed blade 6 are continued. It is desirable to, but not necessarily limited to. However, while the conventional sewing process used for attaching the fixed wing 6 is difficult to be made continuously with the sheet lamination process due to its characteristics, the process of attaching the fixed wing according to the present embodiment using the heat fusion process below is a sheet. It is easy to be made continuously with the lamination process.

The sheet laminating apparatus 10 includes a plurality of spot heating units 12 and a sheet laminating unit 14. The plurality of spot heating units 12 are disposed between the waterproof membrane 2a and the drainage nonwoven fabric 2b at a position where the nonwoven fabric 2b for drainage faces the waterproof membrane 2a made of a resin material. Local spot heating is performed on the site to be joined to form a plurality of point welds 2c arranged in a matrix. The sheet lamination unit 14 includes a crimping roller or similar crimping means, which compresses the waterproof membrane 2a and the drainage nonwoven fabric 2b between which the point fusion splicing portion 2c is interposed. (2a, 2b) are integrated in a laminated state.

At this time, the point heating unit 12 is most preferably provided with a plurality of numbers corresponding thereto for the formation of a plurality of point fusion unit 2c, a plurality of point heating unit 12 by moving It is also conceivable to form the point weld 2c. In addition, the spot heating unit 12 may be a means for applying a local hot air to the resin sheet as disclosed in the Patent No. 644778 by the applicant.

The fixed wing attachment device 20 includes a sheet conveying unit 22, a fixed wing supply unit 24, and a fixed wing joining unit 26, wherein the units 22, 24, and 26 are control oils. Under the control of the net 21, it is preferable to be driven in an organic relationship with each other. Under the control of the control unit 21, the units 22, 24, and 26 can perform the fixed wing attachment process in an automatic and continuous process quickly and accurately.

Using the waterproof sheet manufacturing apparatus shown in Figure 1, in manufacturing a waterproof sheet having a drainage induction function, the order using the sheet laminating device 10 and the fixed wing attachment device 20 can be changed, the sheet laminating device It is preferable to laminate the waterproof membrane and the drainage nonwoven fabric integrally using (10) first, and then attach the stator blade on the drainage nonwoven fabric using the stator blade attachment device 20.

Hereinafter, with reference to Figure 2 will be described a preferred embodiment of the fixed wing attachment device 20 described above.

2, the units 21, 22, 24 and 26 constituting the fixed blade attaching device 20 are illustrated as a whole. In addition, the sheet laminating device 10 including the spot heating unit 12 and the sheet laminating unit 14, which is disposed in front of the stator blade attachment device 20, is shown together.

In the embodiment of the present invention, the non-woven fabric 2b for drainage is laminated on the waterproof film 2a of resin material in the waterproof sheet to which the fixed blade 6 is attached by the units 21, 22, 24, and 26. It is the structure of the waterproof sheet (2).

In this embodiment, the sheet conveying unit 22 includes a pulling roll 221 and a plurality of guide rolls 222. The pull roll 221 is rotationally driven by a motor (not shown) or the like, and pulls and transfers the waterproof sheet 2, and is configured to wind the transported waterproof sheet 2 on itself. In addition, the guide roll 222 serves to support the transported waterproof sheet 2 flat below. Although not shown, the sheet conveying unit 22 may include a stagnate capable of adjusting the conveying speed of the waterproof sheet 2 in correspondence to the attachment speed between the waterproof sheet 2 and the fixed blade 6. Such a stagnation device is disclosed in Korean Patent No. 644778 by the applicant.

On the other hand, the fixed blade supply unit 24 is configured to supply the fixed blade in the longitudinal direction on the non-woven fabric (2b) for drainage of the waterproof sheet 2 to be transferred. The stator blade supply unit 24, the path for supplying the stator blade 6 is different from the transport path of the waterproof sheet 2 in the first predetermined section, the stator blade 6 and the nonwoven fabric for drainage (2b) After the meeting, the fixed blade 6 is supplied to the same supply path as the transfer path of the waterproof sheet 2.

The stator blade supply unit 24 includes a feed roll 242 and a drive unit 244 capable of shifting and rotating the feed roll 242. The drive unit 244 is controlled by the control unit 21, to adjust the feed rate of the fixed blade 6 by the feed roll 242, the speed control is the fixed blade bonding unit 26 is the waterproof Corresponds to the speed at which the sheet 2 and the nonwoven wing 6 are bonded.

In the present embodiment, the fixed blade joining unit 26, by longitudinal fusion and fixed to the fixed wing 6 and the drainage nonwoven fabric 2b in the longitudinal direction and at regular intervals, in this case, the fixed wing supply unit 24 The feeding of the fixed blade 6 by means of) and the conveyance of the waterproof sheet 2 by the sheet conveying unit 22 are made in a stepwise manner. Such stepwise feeding and conveying is performed by, for example, a stepper motor. Can be done.

The fixed wing bonding unit 26 includes a hot air generating unit 262 and the pressing roller unit 264. The hot air generating unit 262 is a joint site (ie, when the fixed blade 6 faces the nonwoven fabric 2b for drainage of the waterproof sheet 2) (ie, the nonwoven fabric 2b for drainage). Hot air) is applied. The hot air changes the state of the nonwoven fabric in such a state that the stationary blade 6 and the drainage nonwoven fabric 2b can be fused to each other. Thereafter, the pressing roller portion 264 composed of a pair of pressing rolls presses the fixing blade 6 onto the drainage nonwoven fabric 2b, and for such drainage, the waterproof sheet 2 is drained. On the nonwoven fabric 2b, the fixed blade 6 may be firmly bonded.

According to an embodiment of the present invention, the sheet laminating device 10 installed upstream of the fixed wing attachment device 20 is laminated to the non-woven fabric for drainage (b) on the waterproof film (2a) provided by different paths The waterproof sheet 2 is manufactured, and the manufactured waterproof sheet 2 is continuously supplied to the fixed wing attachment device 20 by the sheet transfer unit 22 described above. To this end, the waterproof membrane 2a and the drainage nonwoven fabric 2b are supplied in different paths and meet each other at an arbitrary position, and point heating is performed near the position where the waterproof membrane 2a and the drainage nonwoven fabric 2b meet each other. The unit 12 is provided. The spot heating unit 12 is configured to spot-heat on the waterproof film 2a so as to spot weld between the waterproof film 2a and the drainage nonwoven fabric 2b. Then, the waterproof film 2a and the drainage nonwoven fabric 2b passing through the spot heating unit 12 are compressed and laminated by the sheet lamination unit 14 made of the pressing rollers.

As mentioned above, the control unit 21 is provided for the interlocking control of the sheet conveying unit 22, the fixed blade supply unit 24, and the fixed wing bonding unit 26. For example, the sheet conveyance of the sheet conveying unit 22 is stopped and started, and the sheet conveying speed is controlled by the control unit 21. In addition, the control unit 21 controls the fixed wing bonding unit 26 in conjunction with the sheet conveying unit 22, thereby stopping and starting the sheet conveyance of the sheet conveying unit 22 and the sheet conveying speed According to, the fixing blade bonding process by the fixed blade bonding unit 26 can be made without difficulty.

Fixing blade attachment device 20 of the above embodiment is fusion between the nonwoven fabric for drainage 2b and the fixed blade (6) by hot air is implemented. However, fusion between the drainage nonwoven fabric 2b and the stator blade 6 is possible in other ways described in other embodiments below.

FIG. 4 shows an example of a stator blade joining apparatus 20 that uses a high frequency joiner for fusion bonding the drainage nonwoven fabric 2b and the stator blade 6 using a high frequency as the stator blade joining unit 26. As shown in FIG. 4, the fixed wing joining unit 26 has a gun-shaped high frequency generator 265 that generates a high frequency at a junction between the nonwoven fabric 2b for drainage and the fixed wing 6. It includes. It can be driven up and down on the junction site. In addition, the fixed wing joining unit 26 includes a support portion 266 positioned below the joining site. In addition, the high frequency generator 265 moves downward while generating a high frequency wave, and presses and compresses the bonding portion of the drainage nonwoven fabric 2b and the fixed blade 6 together with the supporting portion 266. Can be. In this case, it may be considered that the upward movement of the support part 266 is simultaneously performed while the high frequency generator 265 is lowered. An ultrasonic adapter using ultrasonic waves may also be used instead of the high frequency. The ultrasonic adapter has the same configuration as the high frequency adapter, but uses ultrasonic waves instead of the high frequency waves.

 FIG. 5 shows an example of a stator blade joining apparatus 20 using a stator blade joining unit 26. As shown in FIG. 5, the fixed blade joining unit 26 of the thermal bonder structure includes an upper roll 267a and a lower roll 267b corresponding to the fixed blade 6 and the waterproof sheet 2. At the same time as pressing, a heater is installed on the upper roll 267a, and the heater is configured to apply heat to the joint portion of the nonwoven fabric 2b for drainage of the waterproof sheet 2 and the fixing blade 6. . At this time, a heater can also be provided in the lower roll 267b.

The various types of stator blade attachment devices described in the above embodiments are different from each other in the heating source of the stator blade joining unit 26 by hot air, heater heat, high frequency, and ultrasonic waves, but ultimately, as shown in FIG. (6) is used for production of the waterproof sheet of the structure joined by the fusion | melting part on the drainage nonwoven fabric 2b. On the other hand, in the fixed wing attachment device of the embodiment described below, as shown in Figure 7, a plurality of staples (6), staple (6), non-woven wing 6, drainage nonwoven fabric (2b) and waterproof membrane (2a) It is configured to attach the stator blade 6 onto the drainage nonwoven fabric 2b by penetrating successive stitches.

6 shows an example of a stator blade joining apparatus 20 using a stapler as the stator blade joining unit 26. Referring to FIG. 6, the stator blade joining unit 26 includes a stapler upper part 268 which is moved up and down and a stapler lower part 269 which is paired with the stapler upper part 268. The stapler top 268 is configured to shoot a self-contained "c" shaped staple 6c towards the stapler bottom 269 when interacting with the stapler bottom 269. Between the stapler upper portion 268 and the stapler lower portion 269, the fixed blade 6 and the waterproof sheet 2 move together, wherein the fixed blade 6 is a nonwoven fabric for drainage of the waterproof sheet 2 ( Face 2b).

When the stapler upper part 268 presses the waterproof sheet 2 supported by the stapler lower part 269 and the fixing blade 6 thereon, the staple 6c embedded in the stapler upper part 268 is compressed. Outwardly, the staple 6c is penetrated through the fixed blade 6 and the waterproof sheet 2, the end is bent, the non-woven fabric for draining the fixed blade 6 of the waterproof sheet 2 It is fixed on (2b). The stapler type fixed wing joining unit 26 may be automatically controlled by the control unit 21, and thus, a plurality of staples 6c having a predetermined interval may be fixed wing 6 and the waterproof sheet 2. ) Can be fixed in the longitudinal direction.

1 is a block diagram showing a waterproof sheet manufacturing apparatus according to an embodiment of the present invention.

Figure 2 is a view for explaining a fixed wing attachment device according to an embodiment of the present invention.

Figure 3 (a) and (b) is a view illustrating a waterproof sheet that can be manufactured by attaching a fixed wing in accordance with the present invention.

Figure 4 is a view for explaining a fixed wing attachment device according to an embodiment of the present invention, to attach a fixed wing using a high frequency.

5 is a view for explaining a fixed wing attachment device according to an embodiment of the present invention, to attach a fixed wing using a heater heat.

Figure 6 is a view for explaining a fixed wing attachment device according to an embodiment of the present invention, to attach a fixed wing using a staple.

FIG. 7 is a view showing a waterproof sheet to which a fixed wing is attached by the fixed wing attachment device shown in FIG. 6; FIG.

Claims (10)

A device for attaching a fixed wing in the longitudinal direction on a nonwoven fabric for drainage of the waterproof sheet, A sheet conveying unit configured to convey the waterproof sheet in a longitudinal direction; A fixed blade supply unit configured to supply the fixed blade in a longitudinal direction on a nonwoven fabric for drainage of the waterproof sheet to be transferred; A fixed wing joining unit installed in the waterproof sheet and the path of the fixed blade and configured to bond the fixed blade to the drainage nonwoven fabric by heat, hot air, high frequency or ultrasonic heating and compression; Fixing wing attachment device of the waterproof sheet comprising a. The method according to claim 1, wherein the fixed blade bonding unit, the hot air generating portion for applying hot air to the bonding portion to which the fixed wing and the nonwoven fabric for drainage, and a crimping roller portion for compressing the bonding site to which the hot wind is applied Fixing wing attachment device of the waterproof sheet. The fixed wing attachment device according to claim 1, wherein the fixed wing joining unit is a heat bonder which presses the joining site while applying heat to a joining site where the fixed wing and the drainage nonwoven fabric are joined. . The fixed wing attachment device according to claim 1, wherein the fixed wing joining unit is a high frequency joining unit including a high frequency generating unit for applying a high frequency to a joining site where the fixed wing and the nonwoven fabric for drainage are joined. A device for attaching a fixed wing in the longitudinal direction on a nonwoven fabric for drainage of the waterproof sheet, A sheet conveying unit configured to convey the waterproof sheet in a longitudinal direction; A fixed blade supply unit configured to supply the fixed blade in a longitudinal direction on a nonwoven fabric for drainage of the waterproof sheet to be transferred; A fixed wing joining unit formed of a stapler, which is installed in a transport path of the waterproof sheet and the fixed blade, and is stapled while pressing a joining portion to which the fixed wing and the nonwoven fabric for drainage are joined; Fixing wing attachment device of the waterproof sheet comprising a. The method according to claim 1, wherein the fixed blade bonding unit, the fixed blade attachment device of the waterproof sheet, characterized in that the ultrasonic bonding unit including an ultrasonic generator for applying ultrasonic waves to the bonding site where the fixed blade and the non-woven fabric for drainage is bonded. Transferring the waterproof sheet having a nonwoven fabric for drainage on one surface in a longitudinal direction; Supplying a fixed wing in the longitudinal direction on the nonwoven fabric for drainage of the waterproof sheet; Bonding the fixing blades onto the drainage nonwoven fabric using heat, hot air, high frequency, ultrasonic waves or staples in the transport path of the waterproof sheet and the fixing blades. A waterproof film made of resin; A drainage nonwoven fabric integrally bonded to one surface of the waterproof membrane; An elongate fixing blade joined to the drainage nonwoven fabric in a longitudinal direction by a point welding portion or a line welding portion on the same straight line, The point welded portion or the line welded portion is formed by being heated by hot, hot air, high frequency or ultrasonic waves in the path of the transfer while conveying the nonwoven fabric for drainage and the fixed blade together in the longitudinal direction and being compressed by pressing means. Sheet. A waterproof film made of resin; A drainage nonwoven fabric integrally bonded to one surface of the waterproof membrane; Staples in the same straight line, comprising elongated stator blades joined longitudinally on the drainage nonwoven fabric The staples are waterproof sheet, characterized in that the staples are driven by a stapler in the path of the transfer while conveying the nonwoven fabric and the fixed blade in the longitudinal direction together. The waterproof sheet according to claim 8 or 9, wherein the fixing blade is formed of any one selected from nonwoven fabric and woven fabric.

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