KR20190002077A - Sealing tape, apparatus and method for producing the sealing tape - Google Patents

Abstract

The present invention relates to a sealing tape and a method for producing a sealing tape. According to the present invention, a sealing tape comprises: a convex surface having a first convex unit extending in a longitudinal direction having a first width and a second convex unit extending in a longitudinal direction having a second width while being continued to at least one of a right side or a left side of the first convex unit; and a bonding surface formed on an opposite surface of the convex surface, and having a bonding force. According to the present invention, through the sealing tape having a plurality of curved surfaces in accordance with a determined condition, bonding property with respect to the bonding surface having a stepped portion is improved to prevent corrosion of a processed portion and increase watertightness.

Description

TECHNICAL FIELD [0001] The present invention relates to a sealing tape, a sealing tape,

The present invention relates to a method of producing a sealing tape and a sealing tape.

In the automobile production line, PVC (polyvinyl chloride) sol heat-hardenable adhesive is applied to the seams of the body for corrosion prevention and watertightness to mass-produce the vehicle.

However, since there is a problem in the vehicle after the vehicle is shipped, the repair process must be carried out at a high temperature of 200 ° C or more for general heat curing, and thus it is difficult for most maintenance companies to apply PVC sol in the process.

Therefore, the maintenance company uses sealant of urethane material which is able to be painted instead of PVC sol and has adhesive force and is hardened at room temperature and humidity, to prevent corrosion of car body after panel or panel replacement at 80 ℃ ~ 90 ℃ .

Urethane sealant used in the vehicle maintenance market is a semi-liquid type material. It is applied to the joints of the car body, for example, door, trunk, bonnet, etc. After waiting 4-6 hours for moisture curing at room temperature, .

However, the urethane sealant is a semi-liquid type, and the application shape of the sealant is not constant according to the hand of the applicator, and the coated sealant may not cure, resulting in popping.

In order to solve such a problem, the sealing tape of the invention encapsulates the urethane sealant in advance and solidifies it in the form of a tape, so that it can be painted by attaching it when repairing the vehicle. This solves the operational shortcomings of liquid urethane.

The prior art (Korean Patent Laid-open Publication No. 10-2017-0014284 (Feb. 02, 2018)) relates to a solid sealing tape and a structure for dividing the center portion extending along the longitudinal direction and the predetermined interval so as to be divided into one or two or more The present invention has proposed a method for bending along the curved surface of the bonding portion to achieve bonding and for increasing the easiness of bonding.

However, in order to bond the method of increasing the easiness of adhesion through the simple curved surface of this prior art to the car body having a step difference, it is necessary to have a specific condition and additional constitution about the curved surface.

Korean Patent Publication No. 10-2017-0014284

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to propose a sealing tape structure for enhancing bonding property to a bonding surface having a step.

Another object of the present invention is to propose a structure for facilitating a sealing process of a sealing tape.

It is another object of the present invention to propose a structure for enhancing durability after bonding of sealing tapes.

The present invention also aims to propose a method for easily manufacturing a sealing tape.

According to an aspect of the present invention, there is provided a sealing tape comprising a first convex portion extending in a longitudinal direction having a first width, a second convex portion continuing to at least one of right and left sides of the first convex portion, A convex surface including a convex portion extending in the longitudinal direction, and an adhesive surface formed on the opposite surface of the convex surface and having an adhesive force.

A second convex portion having a second width at one side of the first convex portion, and a third convex portion having a third width at the other side of the first convex portion.

And the first width is smaller than the second width and the third width.

And a second convex portion having a second width at one side of the first convex portion, wherein the first width is smaller than the second width.

And a guide part is further provided on the center line of the adhesion surface, and the guide part is provided with an adhesive material.

And the guide portion is a concave portion.

And an indication line indicating the center of the sealing tape is formed on the upper surface corresponding to the guide portion.

And a part of the adhesive surface including the guide portion is adhered to the distal end portion of the two metal plates.

According to another aspect of the present invention, there is provided a method of manufacturing a sealing tape, comprising the steps of: (a) forming a sealing tape sheet having a predetermined area; (b) forming an adhesive surface on a bottom surface of the sealing tape sheet; ) The sealing tape sheet according to any one of claims 1 to 3, wherein the upper surface of the sealing tape sheet is a roll-shaped cutter comprising a first concave portion having an annular first width and a second concave portion continuing to at least one of right and left sides of the first concave portion, And (d) cutting the rectangular sheet into at least one sealing tape having a predetermined thickness.

Wherein the cut sealing tape has a first convex portion extending in a longitudinal direction having the first width and a second convex portion extending in a longitudinal direction having a second width and continuing to at least one of right and left sides of the first convex portion, And a convex surface including two convex portions.

According to another aspect of the present invention, there is provided a method of manufacturing a sealing tape, comprising the steps of: (e) forming a concave-shaped guide portion on a center line of the adhesive surface; and providing an adhesive material inside the guide portion .

According to an aspect of the present invention, there is provided a sealing tape production apparatus comprising sheet forming means for forming a sealing tape sheet having a predetermined area, adhesive surface forming means for forming an adhesive surface on the bottom surface of the sealing tape sheet, A first concave portion having an annular first width for pressing an upper surface of the tape sheet, a second concave portion continuous to at least one of right and left sides of the first concave portion and having a second width, And a sheet cutting means including a blade for cutting the rectangular sheet into at least one sealing tape having a predetermined thickness.

Wherein the cut sealing tape has a first convex portion extending in a longitudinal direction having the first width and a second convex portion extending in a longitudinal direction having a second width and continuing to at least one of right and left sides of the first convex portion, And a convex surface including two convex portions.

The sealing tape production apparatus may further include an adhesive material providing means for forming a concave-shaped guide portion on a center line of the adhesive surface and providing an adhesive material inside the guide portion.

According to the present invention, it is possible to increase the bonding property to the adhesive surface having the stepped portion through the sealing tape having a plurality of curved surfaces according to the determined conditions, thereby preventing the corrosion of the process portion and increasing the watertightness.

Further, the present invention can increase the work efficiency of the operator through the structure guiding the sealing tape bonding process, and further improve the durability of the process part through more precise work.

Further, the present invention has the effect of enhancing the durability of the process part reflexively by increasing the durability of the sealing tape by varying the degree of bending of the bent surface of the sealing tape.

In addition, the sealing tape according to the present invention can be produced through a continuous process to increase the production efficiency.

1 is an exemplary view showing a sealing tape according to an embodiment of the present invention.
2 is a cross-sectional view of a sealing tape according to an embodiment of the present invention.
3 is an exemplary view showing an example in which a sealing tape according to an embodiment of the present invention is attached to an object.
4 is a view showing an example of attachment of a sealing tape according to an embodiment of the present invention in more detail.
5 and 6 are views illustrating a sealing tape including a guide unit according to an embodiment of the present invention.
7 to 9 are views showing an example of a sealing tape producing apparatus according to an embodiment of the present invention.
10 is an exemplary view showing guiding means of a sealing tape according to an embodiment of the present invention and another embodiment.
11 is an exemplary view showing a sealing tape according to another embodiment of the present invention.
12 is a cross-sectional view of a sealing tape according to another embodiment of the present invention.
13 is an exemplary view showing an example in which a sealing tape according to another embodiment of the present invention is attached to an object.
Fig. 14 is a view showing an example of attachment of a sealing tape according to another embodiment of the present invention in more detail. Fig.
15 and 16 are views illustrating a sealing tape including a guide portion according to another embodiment of the present invention.
17 to 19 are views showing an example of a sealing tape producing apparatus according to another embodiment of the present invention.
20 is a flowchart showing a method of producing a sealing tape according to an embodiment of the present invention and another embodiment.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. The embodiments of the present invention are provided to fully explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Throughout the specification, when a component is referred to as " comprising ", it means that it can include other components as well, rather than excluding other components, unless the context otherwise requires.

Hereinafter, preferred embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the following examples are provided only for the better understanding of the present invention, and the present invention is not limited by the examples.

< Example 1 >

1 is an exemplary view showing a sealing tape 100 according to an embodiment of the present invention. Referring to FIG. 1, the sealing tape 100 according to an exemplary embodiment may have a convex surface having three convex portions and a bonding surface formed on the opposite side of the convex surface. Specifically, the convex surface may include the first convex portion 110, the second convex portion 120, and the third block portion 130.

The first convex portion 110 may have a first width and may extend along the longitudinal direction of the sealing tape 100. The second convex portion 120 may have a second width and may be formed to extend along the longitudinal direction of the sealing tape 100, And the third block portion 130 has a third width and extends along the longitudinal direction of the sealing tape 100. [

Referring to FIG. 1, the second convex portion 120 may be formed continuously with respect to the left side of the first convex portion 110, and the third convex portion 130 may be formed continuously from the right side of the first convex portion 110 Can be formed continuously.

That is, the sealing tape 100 according to one embodiment has three elongated longitudinally extending shapes, three convex portions, and each convex portion continues in the width direction. Therefore, the continuous portion can be configured to be relatively thin in thickness.

At this time, the continuous portion of the thin convex portion allows the sealing tape 100 to be bent more easily when the sealing tape 100 according to an embodiment is attached to an object having a step.

In one embodiment, the adhesive surface 140 provides an adhesive force when attaching the sealing tape 100 to an object, and may be composed of a sheet-like adhesive sheet.

Specifically, one surface of the adhesive sheet is bonded to the bottom surface (opposite surface of the convex surface) of the sealing tape 100, and the other surface includes a cover sheet. The adhesive sheet may be configured to be attached to an object after removal of the cover sheet, ) With a separate adhesive.

Hereinafter, the sealing tape 100 according to the present embodiment will be described in more detail with reference to FIG. 2 is a cross-sectional view of a sealing tape 100 according to an embodiment of the present invention.

Referring to FIG. 2, the end surface of the sealing tape 100 according to one embodiment may be composed of a convex surface in which three convex portions are continuous and a flat bonding surface in which an adhesive is formed.

2, the width of the first convex portion 110 is formed to be smaller than the width of the second convex portion 120 and the third convex portion 130. In other words, .

The second convex portion 120 and the third convex portion 130 may have widths b and c larger than the width a of the first convex portion 110 and the sealing tape 100 may have a symmetrical shape with respect to the center of the first convex portion 110.

2, the second convex portion 120 and the third convex portion 130 have the same width b and c with respect to the center line 22 of the second convex portion 120 and are formed symmetrically Accordingly, when the operator cuts and uses the sealing tape 100, it is possible to use the left and right without discrimination, thereby increasing the efficiency of the work.

The first convex portion 110 and the third convex portion 130 have a relatively narrow width a since they are attached to the portion having the step difference of the object functionally and the second convex portion 120 and the third convex portion 130 have a width But has a relatively wide width (b, c) since it is attached to a continuous surface without having a large width.

This will be described in more detail with reference to FIG.

3 is an exemplary view showing an example in which a sealing tape 100 according to an embodiment of the present invention is attached to an object.

Referring to FIG. 3, an object according to one embodiment may be a metal plate having a folded shape. In one embodiment, the metal plate is constructed by folding a single continuous plate, and may include a step at the joining end.

In this case, in order to prevent corrosion of the metal plate due to penetration of water through the gap of the joint end portion, for example, in the automobile production process for producing automobile parts, in the first manufacturing process, PVC (Polyvinyl chloride ) Sol is applied to the seam of the body for the purpose of corrosion prevention and watertightness.

However, in the case where components are repaired by an accident after the first step, it is not possible to use a PVC sol requiring heat curing at a high temperature of 200 degrees or more at the joint end portion. Thus, in one embodiment, So that corrosion can be prevented and water tightness can be improved.

FIG. 3 is a cross-sectional view of a sealing tape 100 according to an embodiment of the present invention. The first convex portion 110 is located at a portion where a step of a metal plate is formed.

That is, the first convex portion 110 is bent in such a manner as to surround the front end portion 212 of the metal plate toward the inside. In this embodiment, the opposite side of the sealing tape 100 corresponding to the first convex portion 110 A part of the adhesive surface formed on the second metal plate 210 can be adhered to a part of the front end portion 212 of the second metal plate 210.

In this case, the second metal plate 210 may be a subsequent metal plate of the folded portion when one metal plate is folded to form a step as shown in FIG.

In one embodiment, the second convex portion 120 is positioned on the second metal plate 210 extending from the left side of the first convex portion 110 to the front end portion 212. At this time, a part of the adhesive surface formed on the opposite surface of the sealing tape 100 corresponding to the second convex portion 120 can be adhered to a surface reaching the front end portion 212 of the second metal plate 210.

In one embodiment, the third convex portion 130 is positioned on the first metal plate 220 extending from the right side of the first convex portion 110 to the front end portion 212, When one metal plate is folded to form a step, it may be a metal plate before folding.

A part of the adhesive surface formed on the opposite surface of the sealing tape 100 corresponding to the third convex portion 130 can be adhered to the surface reaching the front end portion 212 of the first metal plate 220. [

3, one metal plate is folded and divided into the first metal plate 220 and the second metal plate 210. However, when a step is formed by joining different metal plates, The first metal plate 220 may be a metal plate 210 and the other metal plate joined to the second metal plate 210 may be a first metal plate 220.

In addition, the width a of the first convex portion 110 according to one embodiment may be formed in consideration of the step difference, which will be described in more detail with reference to FIG.

4 is a diagram showing an example of attachment of the sealing tape 100 according to an embodiment of the present invention in more detail.

Since the first convex portion 110 is formed on the stepped tip portion 212 when the sealing tape 100 according to one embodiment is attached to the object, the width a of the first convex portion 110 is smaller than the width And the thickness h of the tip portion 212 of the base portion 212. [

Specifically, in this embodiment, the first width a of the first convex portion 110 is preferably smaller than the thickness h of the tip portion 212 forming the step. More preferably, the half (a / 2) of the first width of the first convex portion 110 may be smaller than the thickness h of the front end portion 212.

4, the sealing tape 100 according to the present embodiment is attached to the front end portion 212 constituting the stepped portion through the first convex portion 110, It can be wrapped.

Since the first convex portion 110 and the second convex portion 120 are positioned on the second metal plate 210 along the direction of the first convex portion 110 and the second convex portion 120, The sealing tape 100 according to the present embodiment can be bent in the outward direction.

The first convex portion 110 and the second convex portion 120 of the first convex portion 110 are bent in different directions so that the direction of the restoring force formed on the sealing tape 100 So that the width a of the first convex portion 110 is made smaller than the thickness h of the front end portion 212 forming the step so that only one directional force is applied to the first convex portion 110 .

When the width a of the first convex portion 110 of the sealing tape 100 is larger than the thickness h of the step portion 212 forming the step portion, the first convex portion 110 contacts the tip portion 212, A biasing force acts on the first metal plate 220 so that the adhesive surface formed on the opposite surface corresponding to the first convex portion 110 may be lifted.

Particularly, when the thickness a of the first convex portion 110 of the sealing tape 100 becomes larger than the thickness h of the tip portion 212 forming the step, the sealing tape 100 is attached to the metal plate There is a high possibility that the first convex portion 110 is positioned on the first metal plate 220 in addition to the tip portion 212 and the sealing tape 100 is more likely to be lifted up by the sealing tape 100, The sealing effect can be reduced.

When the width a / 2 of the width of the first convex portion 110 is larger than the thickness h of the front end portion 212 forming the stepped portion, the center of the first convex portion 110 is shifted from the center of the tip portion 212 It is necessary to be positioned on the left side of the corner so that the direction of the force applied to the first convex portion 110 can be unified.

Therefore, in one embodiment, the width of the first convex portion 110 is determined in consideration of the thickness h of the front end portion 212, thereby enhancing the adhesiveness of the sealing tape 100. In addition, A description will be given of the construction of the sealing tape 100 that can be used.

FIG. 5 illustrates a sealing tape 100 including a first indication line 112 according to an embodiment of the present invention. FIG. 6 illustrates a first guide part 114 according to an embodiment of the present invention. Fig. 2 is a diagram illustrating a sealing tape 100 including the sealing tape 100;

5, the sealing tape 100 according to the embodiment may further include a first indication line 112 indicating the center of the sealing tape 100 on the upper surface of the first convex portion 110 Specifically, in one embodiment, the first display line 112 may be a display line that indicates the center of the first convex portion 110.

5, the first display line 112 is formed as a solid line on the center of the first convex portion 110. However, the display line is not limited to the arbitrary one that can be visually confirmed in the process of the sealing tape 100 Grooves, dotted lines, and the like.

Therefore, the operator can recognize the center of the sealing tape 100 by the first indication line 112 and estimate the position of the front end portion 212 and determine the position of the center of the sealing tape 100 at the position of the expected front end portion 212 And the attachment operation can be performed.

4, one or more directions of force may be applied to the first convex portion 110 depending on the attachment position of the sealing tape 100. In order to increase the adhesive force, The force of one direction can be applied so that the center of the first arm 100 is positioned to the left of the distal end 212.

That is, through the first indication line 112 according to FIG. 5, the operator can intend the sealing tape 100 to be positioned on the edge or on the edge with respect to the edge of the tip portion 212.

Referring now to FIG. 6, in one embodiment, the first guide portion 114 may be formed along the center of the adhesive surface formed on the opposite surface corresponding to the sealing tape 100, which may be in the form of a recess.

6, the first guide portion 114 is formed along the center of the adhesive surface formed on the opposite surface of the sealing tape 100 in the form of a concave portion recessed inward of the sealing tape 100. In other words, And extend in the longitudinal direction of the sealing tape 100 with a predetermined depth.

At this time, the guide part 114 located on the center line of the adhesive surface 140 of the sealing tape 100 is formed in the shape of a concave concave part, and the concave part of the first guide part 114 may be provided with an adhesive material .

Such an adhesive material is provided in the form of a gel so that it does not leak to the outside and has a characteristic of a gel which is not rigid at a normal room temperature. When the sealing tape 100 undergoes a coating process (for example, The sealing tape 100 may be shaped to fix the sealing tape 100 to the metal plate so that the sealing performance of the sealing tape 100 can be further improved.

Thus, using the sealing tape 100 according to one embodiment, the operator can more easily align the center of the sealing tape 100 to the edge of the front end portion 212, and the operator can easily align the center of the sealing tape 100 with the sealing surface of the sealing tape 100 It is possible to recognize that a part of the edge of the tip end portion 212 is fitted to the formed first guide portion 114 as a tactile sense.

4, one or more directions of force may be applied to the first convex portion 110 depending on the attachment position of the sealing tape 100. In order to increase the adhesive force, The force of one direction can be applied so that the center of the distal end portion 100 is positioned to the left of the distal end portion 212 or the distal end portion 212.

In addition, the adhesive material provided on the first guide part 114 of the sealing tape 100 is provided in the form of a gel to prevent the sealing tape 100 attached to the metal plate from being lifted, and the sealing tape 100 Can be more effectively fixed to the metal plate.

As described above, the sealing tape 100 having a plurality of curved surfaces according to the determined condition can improve the bonding property to the adhesive surface having the stepped portion, thereby preventing the corrosion of the process site and increasing the water tightness, The work efficiency of the operator can be increased through the configuration of the first indication line 112 which displays the center of the sealing tape 100 in the first display line.

In addition, a part of the adhesive surface 140 including the first guide portion 114 provided with the adhesive material may be adhered to the front end portion 212 of the metal plate to improve the sealability of the process portion.

Referring again to FIG. 4, when the sealing tape 100 according to the present embodiment is attached to a metal plate, the sealing tape 100 is bent based on a point at which the thickness of each of the convex portions becomes relatively thin.

Therefore, when the sealing tape 100 is attached to the metal plate and then hardened, a relatively thin thickness and a crack in which a part of the sealing tape 100 is broken at the bent portion may occur. The crack generated at this time weakens the water tightness, Water may penetrate inside and cause corrosion.

In order to solve such a problem, the convex portion according to one embodiment may be formed into a convex surface having different curvature from left to right.

More specifically, referring to FIG. 1, the second convex portion 120 may be formed as a convex surface having a curvature on the right side smaller than that on the left side, and a second convex portion 120 bent on the basis of FIG. The thickness of the left portion of the third convex portion 130 is thicker than the thickness of the right portion of the third convex portion 130 and the possibility of cracking due to warping can be reduced.

Therefore, the durability of the process part can be improved reflexively by increasing the durability of the sealing tape 100 by varying the degree of bending of the bent surface of the sealing tape 100.

Next, an apparatus for producing a sealing tape 100 according to an embodiment of the present invention will be described with reference to FIGS.

7 shows a producing apparatus in which a sealing tape 100 is produced in which the material 10 constituting the sealing tape 100 is filled in the hopper 410 and the material 10 fed from the hopper 410 The sheet can be pressed between the pair of pressing rolls 420 to produce a sheet.

In one embodiment, the material 10 of the sealing tape 100 may be a natural rubber (NR), styrene butadiene rubber (SBR), Ethylene Propylene Diene M-clas (EPDM), nitrile rubber acrylonitrile-butadiene rubber (NBR), and isoprene-isobutylene rubber (IIR). The thermoplastic polyurethane (TPU) has a high durability and wear resistance It is also possible to use a material that does not work well.

At the same time, the sealing tape material 10 can be added with an antioxidant, and the antioxidant can improve the weather resistance of the non-virgin sealing tape 100.

It is also possible in one embodiment to pass the intermediate treatment step before the material 10 is fed to the pair of squeeze rolls 420 in the hopper 410.

Then, when the sealing tape sheet is produced through the press roll 420, the adhesive surface forming means 430 can form an adhesive surface on the bottom surface of the sealing tape sheet, and the upper surface of the sealing tape sheet is fixed to the sheet cutting means 440 And can be moved along the stand 450.

Here, the sheet cutting means 440 will be described in detail with reference to Fig.

8, the sheet cutting means 440 according to one embodiment includes a first recess 442 and a second recess 442 and 464 and includes a blade (not shown) for cutting the sealing tape sheet do.

The widths of the first and second recesses 442, 444 and 446 correspond to the widths of the first through third protrusions 110, 120 and 130 of the sealing tape 100 according to the embodiment described above. The depths of the concave grooves of the first and second concave portions 442, 444, 446 may correspond to the heights of the first to third convex portions 110, 120, 130 of the sealing tape 100 according to an embodiment.

In one embodiment, the sheet cutting means 440 presses the sealing tape sheet to produce the desired shape, so that it can have the shape of the sealing tape 100 and the inverted shape, and the first and second recesses 442, 444, But the depth may be greater than the height of the first to third convex portions 110, 120 and 130. [

Further, when the sheet cutting means 440 presses the sealing tape sheet, if the material of the sealing tape 100 overflows the accommodating space of the concave portion, the thickness of the entire sealing tape 100 may not be uniform. Therefore, It is possible to prevent the material from overflowing.

The blade 445 according to one embodiment may be configured at both ends of each unit 448 as a unit for cutting the sealing tape sheet to the sealing tape 100 in units of the first and second concave portions described above.

In this regard, the description will be made with reference to Fig.

9 illustrates a blade 445 for cutting a sealing tape sheet in accordance with one embodiment.

9, the blade 445 according to the present embodiment may be configured at one outer end of the second recesses 444, 446, while the second recesses 444, So that the shape of the second convex portion 120 and the third convex portion 130 can be formed, and at the same time, the blade 445 can cut the same to produce the sealing tape 100.

That is, the sheet cutting means 440 according to an embodiment can form the concave portions 442, 444, 446 and the blades 445 by a plurality of units 448, so that a plurality of sealing tapes 100 can be produced at the same time, The production efficiency of the production apparatus 100 can be increased.

In addition, although not shown, it is also possible to separately form the concave portion and the blades in another embodiment. In the process of moving the sealing tape sheet to the stand 450, the convex portion is formed by pressing the sealing tape sheet using the concave portion , So that it can be cut through the next blade.

At this time, the blade 445 may be cut along the moving direction of the sealing tape sheet to cut a plurality of sealing tapes 100 based on the contact between the convex portions.

Next, a sealing tape production apparatus according to an embodiment may further include a sealing tape guiding means 500, which will be described with reference to FIG.

Referring to FIG. 10, the sealing tape guiding means 500 according to an embodiment guides and aligns the sealing tape produced by the sheet cutting means 440 along the moving path.

The sealing tape guiding means 500 according to the embodiment is provided in such a manner that a plurality of partitioning members 502 are disposed at the same interval. That is, the sealing tape 100 cut by each of the blades 445 is accommodated in the space formed between the adjacent divided members 502 of the sealing tape guide means 440, so that the sealing tape 100 can be separated do.

< Example 2 >

The sealing tape 100 'according to another embodiment of the present invention has a different number of convex portions, and the configuration of the convex portion, the adhesive material, the structure of the bonded metal plate, the production method and the configuration of the guiding means 500, The sealing tape 100 according to an embodiment of the present invention is omitted, and only different configurations will be described.

11 is an exemplary view showing a sealing tape 100 'according to another embodiment of the present invention.

Referring to FIG. 11, the sealing tape 100 'according to another embodiment comprises a convex surface having two convex portions and a bonding surface 140 formed on the opposite side of the convex surface.

The convex surface may be specifically composed of the first convex portion 110 and the second convex portion 120.

The first convex portion 110 has a first width and is formed to extend along the longitudinal direction of the sealing tape 100 '.

The second left convex portion 120 has a second width and is formed continuously to the left side of the first convex portion 110 along the longitudinal direction of the sealing tape 100 '.

In other words, the sealing tape 100 'according to another embodiment has a shape of elongated shape extending in the longitudinal direction and has two convex portions, and each convex portion is continuous in the width direction. Therefore, the continuous portion can be configured to be relatively thin in thickness.

In another embodiment, the adhesive surface 140 provides an adhesive force when attaching the sealing tape 100 'to an object, and may be composed of a sheet-like adhesive sheet.

Hereinafter, the sealing tape 100 'according to another embodiment will be described in more detail with reference to FIG.

12 is a cross-sectional view of a sealing tape 100 'according to another embodiment of the present invention.

12, the cross section of the sealing tape 100 'according to another embodiment may be composed of a convex surface where two convex portions are continuous and a flat bonding surface 140 on which an adhesive is formed.

At this time, the width a of the first convex portion 110 may be smaller than the width b of the second convex portion 120.

Since the first convex portion 110 has a relatively narrow width a because it is attached to a portion having a step difference of the object functionally and the second convex portion 120 is attached to a continuous surface without a step difference, It is preferable to have the width (b).

This will be described in more detail with reference to FIG.

13 is an exemplary view showing an example in which a sealing tape 100 'according to another embodiment of the present invention is attached to an object.

Referring to FIG. 13, in another embodiment, the first protrusion 110 of the sealing tape 100 'is attached along the joint end portion to prevent corrosion and improve water tightness.

13 is a cross-sectional view of a sealing tape 100 'according to another embodiment of the present invention attached to a metal plate. According to FIG. 13, the first convex portion 110 is located at a portion where a step of a metal plate is formed.

That is, the first convex portion 110 is bent in such a manner as to enclose the front end portion 212 of the metal plate toward the inside, and the adhesive formed on the opposite surface of the sealing tape 100 'corresponding to the first convex portion 110 The surface 140 is bonded to the tip 212 of the second metal plate 210.

In another embodiment, the second metal plate 210 may be a subsequent metal plate of the folded portion when one of the metal plates is folded to form a step as shown in FIG. 13, wherein the second convex portion 120 includes a first convex portion 110 And is positioned on the second metal plate 210 extending from the left side of the first metal plate 210 to the tip end 212 thereof.

At this time, a part of the adhesive surface formed on the opposite surface of the sealing tape 100 corresponding to the second convex portion 120 may be adhered to the surface leading to the front end portion 212 of the second metal plate 210.

In the above description, one metal plate is folded and divided into the first metal plate 220 and the second metal plate 210. However, if a step is formed by joining different metal plates, The first metal plate 220 may be a metal plate 210 and the other metal plate joined to the second metal plate 210 may be a first metal plate 220.

Next, the width a of the first convex portion 110 of the sealing tape 100 'according to another embodiment may be formed in consideration of the step difference.

This will be described in detail with reference to FIG.

Fig. 14 is a diagram showing an example of attachment of the sealing tape 100 'according to another embodiment of the present invention in more detail.

Specifically, in another embodiment, the first width a of the first convex portion 110 is smaller than the thickness h of the step portion 212, and more preferably, the first width a of the first convex portion 110 The width a / 2 of the width may be smaller than the thickness h of the tip portion 212.

14, since the sealing tape 100 'is attached to the front end portion 212 constituting the stepped portion through the first convex portion 110, the first convex portion 110 is formed so as to surround the front end portion 212 do.

Since the first convex portion 110 and the second convex portion 120 are positioned on the second metal plate 210 along the direction of the first convex portion 110 and the second convex portion 120, The sealing tape 100 is bent in the outward direction.

Therefore, the continuous portions of the first convex portion 110 and the second convex portion 120 are bent in different directions, and thus the direction of the restoring force formed on the sealing tape 100 'may be different from each other.

On the contrary, when the width a of the first convex portion 110 of the sealing tape 100 'is larger than the thickness h of the step portion 212 forming the step, the first convex portion 110 contacts the tip portion 212, so that bi-directional force acts on the second metal plate 210, so that the adhesive surface formed on the opposite surface corresponding to the first convex portion 110 may be lifted. As a result, the sealing tape 100 ') Can be reduced.

Therefore, in another embodiment, the width of the first convex portion 110 is determined in consideration of the thickness h of the front end portion 212, thereby increasing the adhesiveness of the sealing tape 100. In addition, can do.

Next, the configuration of the sealing tape 100 'for improving the work efficiency of the operator according to another embodiment will be described.

FIG. 15 illustrates a sealing tape 100 'including a second indication line 122 according to another embodiment of the present invention. FIG. 16 illustrates a second guide part 124 according to another embodiment of the present invention. Fig. 3 is a view illustrating a sealing tape 100 'including the sealing tape 100'.

15, the sealing tape 100 'according to another embodiment further includes a second indication line 122 indicating the center of the sealing tape 100' on the upper surface of the first convex portion 110 Which can be formed at a position corresponding to the center of the adhesive surface 140 of the sealing tape 100 '.

5 that the second display line 122 is formed as a solid line at a position corresponding to the center of the adhesive surface 140 of the sealing tape 100 ' Or may be formed in various shapes such as a dotted line or the like.

At this time, through the second indication line 122 of FIG. 15, the operator can intend the sealing tape 100 'to be positioned on the edge or on the edge with respect to the edge of the tip portion 212.

Referring now to FIG. 16, in one embodiment, the second guide portion 124 may be formed along the center of the adhesive surface formed on the opposite surface corresponding to the sealing tape 100 ', which may be in the form of a recess .

16, in one embodiment, the second guide portion 124 includes a bonding surface 140 formed on the opposite side of the sealing tape 100 'in the form of a concave portion recessed inward of the sealing tape 100' And may extend in the longitudinal direction of the sealing tape 100 'with a predetermined depth.

At this time, the guide part 114 located on the center line of the adhesive surface 140 of the sealing tape 100 is formed in the shape of a concave recess, and the concave part of the second guide part 124 may be provided with an adhesive material .

Accordingly, the adhesive material provided on the second guide part 124 of the sealing tape 100 is provided in the form of a gel to prevent the sealing tape 100 'adhering to the metal plate from being lifted, 100 ') to the metal plate.

That is, through the structure of the second indication line 122 indicating the center of the sealing tape 100 'according to another embodiment, the work efficiency of the operator can be increased, and the second guide part 124, A part of the adhesive surface 140 including the adhesive layer 140 may be adhered to the front end portion 212 of the metal plate to improve the sealability of the process region.

As described above, the sealing tape 100 'having a plurality of curved surfaces in accordance with the determined condition improves the bonding property to the adhesive surface having the step difference, thereby preventing the corrosion of the process site and increasing the water tightness.

The work efficiency of the operator can be increased through the structure for guiding the joining process of the sealing tape 100 ', which is another embodiment of the present invention, and the durability of the process part is further improved by more precise work.

On the other hand, the convex portion according to another embodiment may be formed as a convex surface having different curvature from left to right.

Next, an apparatus for generating a sealing tape 100 according to another embodiment of the present invention will be described with reference to FIGS.

17 is a view of an apparatus for producing a sealing tape 100 'according to another embodiment of the present invention, which is similar in construction to the apparatus for producing a sealing tape 100 according to an embodiment of the present invention described above, Only the cutting means 440 'will be described in more detail with reference to FIG.

18, the sheet cutting means 440 'according to another embodiment of the present invention includes a first concave portion 442 and a second concave portion 444, and a blade (not shown) for cutting the sealing tape sheet Hour).

The widths of the first recess 442 and the second recess 444 are equal to the widths of the first protrusion 110 and the second protrusion 120 of the sealing tape 100 ' Width correspond to the width.

The depths of the concave grooves of the first concave portion 442 and the second concave portion 444 may correspond to the heights of the first convex portion 110 and the second convex portion 120 of the sealing tape 100 ' .

In another embodiment of the present invention, the sheet cutting means 440'may produce the desired shape by pressing the sealing tape sheet, so that it can have the shape of the sealing tape 100 'and the inverted shape.

The first concave portion 442 and the second concave portion 444 may have an inverted shape and the depth may be greater than the height of the first convex portion 110 and the second convex portion 120, The thickness of the entire sealing tape 100 'may not be uniform if the material of the sealing tape 100' overflows the accommodation space of the concave portion when the means 440 'presses the sealing tape sheet. Therefore, It is possible to prevent the material from overflowing.

The blade 445 'according to another embodiment of the present invention is a unit for cutting the sealing tape sheet into a sealing tape 100' in units of the first recessed portion 442 and the second recessed portion 444 And may be configured at both ends of each unit 448.

This will be described with reference to Fig.

19 is a view showing a blade 445 'for cutting a sealing tape sheet according to another embodiment of the present invention.

Referring to FIG. 19, the blade 445 'according to another embodiment is formed at one outer end of the first recess 442 and the second recess 444, and the first recess 442 and the second The concave portion 444 presses the sealing tape sheet to form the first convex portion 110 and the second convex portion 120 and at the same time the blade 445 'cuts the sealing tape to produce the sealing tape 100' do.

In other words, the sheet cutting means 440 'according to another embodiment of the present invention includes the concave portions 442 and 444 and the blades 445' by the plurality of units 448, and simultaneously the plurality of sealing tapes 100 ' So that the production efficiency of the production apparatus of the sealing tape 100 'can be increased.

Meanwhile, the apparatus for producing the sealing tape 100 and the sealing tape 100 'according to another embodiment according to an embodiment of the present invention performs the process steps according to FIG. 20 to generate the sealing tapes 100 and 100' . 20 is a flowchart showing a method of producing a sealing tape 100, 100 'according to an embodiment of the present invention and another embodiment.

Referring to FIG. 20, the sheet forming means 420 according to an embodiment and another embodiment of the present invention forms a sealing tape sheet having a predetermined area as the material of the sealing tape 100, 100 '. (S100).

The material constituting the sealing tape 100, 100 'according to one embodiment and another embodiment is filled in the hopper 410 as shown in FIGS. 7 and 17, and the material 10 Is compressed between the pair of pressing rolls 420 to produce a sheet.

In one embodiment and in another embodiment of the present invention, the material 10 of the sealing tape 100, 100 'may be a natural rubber (NR), styrene butadiene rubber (SBR), Ethylene Propylene Diene And may be a synthetic rubber in which at least one of M-clas (EPDM), acrylonitrile-butadiene rubber (NBR), and isoprene-isobutylene rubber (IIR) is mixed. Alternatively, it is possible to use a material that is durable and does not easily wear, such as thermoplastic polyurethane (TPU).

Along with this, the sealing tape material 10 can be added with an antioxidant, and the antioxidant can improve the weather resistance of the unvulcanized sealing tape 100, 100 '.

It is also possible for the material 10 in the hopper 410 to undergo an intermediate treatment step before being fed to the pair of squeeze rolls 420 in one embodiment of the present invention and in another embodiment.

The sheet formed in the sheet forming step S100 has a flat bottom surface in the producing apparatus according to the present embodiment and has a predetermined thickness. The sheet is moved in the horizontal direction with reference to Fig. 7 and pressed and cut to form the sealing tapes 100, 100 ').

That is, when the sealing tape sheet is produced through the pressing roll 420, the adhesive surface forming means 430 forms the adhesive surface on the bottom surface of the sealing tape sheet. (S200).

The adhesive surface 140 according to one embodiment of the present invention and another embodiment provides an adhesive force when attaching the sealing tape 100 to an object and may be constituted by a sheet-like adhesive sheet.

In this embodiment, the adhesive surface forming step (S200) can adhere the adhesive sheet to the bottom surface of the sealing tape sheet to form the adhesive surface.

In this embodiment, the adhesive sheet may be configured in the form of a double-sided tape on which an adhesive having an adhesive force is applied on both sides. Thus, the adhesive sheet is pressed on the both surfaces of the sealing tape sheet opposite to the bottom surface thereof through the adhesive sheet-attached roll and attached to the bottom surface of the sealing tape sheet.

The other surface of the adhesive sheet that is not attached to the bottom surface of the sealing tape sheet can provide an adhesive force so that the adhesive sheet can be adhered to the metal sheet during the sealing operation according to the above example.

When the adhesive surface is attached in the adhesive surface forming step S200, the sealing tape 100, 100 'according to one embodiment of the present invention and another embodiment of the present invention is formed by cutting the upper surface of the sealing tape sheet by sheet cutting means 440, 440 'And moves along the stand 450.

At this time, the sheet cutting means 440 and 440 'include a first concave portion having an annular first width, and a second concave portion continuing to at least one of right and left sides of the first concave portion and having a second width.

That is, the rectangular sheet is cut into at least one sealing tape (100, 100 ') having a predetermined thickness by using a blade simultaneously with pressing by the concave portion. (S300)

At this time, a concave-shaped guide portion is formed on the bonding surface of the cut sealing tape 100 or 100 ', and an adhesive material is included inside the guide portion formed therein.

That is, on the center line of the bonding surface of the sealing tape 100, 100 ', a guide portion in the form of a recess is formed, and an adhesive material is provided on the inside thereof. (S400)

As described above, according to the present invention, it is possible to improve the bonding property to the adhesive surface having the stepped portion through the sealing tapes 100 and 100 'having a plurality of curved surfaces according to the determined conditions, thereby preventing the corrosion of the process portion and increasing the water tightness.

Further, the present invention can increase the work efficiency of the operator through the structure for guiding the joining process of the sealing tapes 100, 100 ', and further improve the durability of the process part through more precise work.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

100, 100 ': sealing tape
10: Material
22: Center line
110: first convex portion
112: first display line
114: first guide portion
120: second convex portion
122: second display line
124: second guide portion
130: third convex portion
140: adhesive side
210: second metal
212:
220: First metal
410: Hopper
420: squeeze roll
430: Adhesive forming means
440, 440 ': sheet cutting means
450: Stand:
442: first concave portion
444, 446: second concave portion
445, 445 ': blade
448: Unit
500: sealing tape guide means
502:

Claims (12)

A convex surface including a first convex portion extending in a longitudinal direction having a first width, a convex portion continuing to at least one of right and left sides of the first convex portion and extending in a longitudinal direction having a second width; And
And an adhesive surface formed on an opposite surface of the convex surface and having an adhesive force.
Sealing tape.
The method according to claim 1,
A second block having a second width at one side of the first block; And a third block portion having a third width on the other side of the first block portion.
Sealing tape.
3. The method of claim 2,
Wherein the first width is less than the second width and the third width.
Sealing tape.
The method according to claim 1,
And a second block portion having a second width at one side of the first block portion, and the first width is smaller than the second width.
Sealing tape.
The method according to claim 2 or 4,
And a guide portion on the center line of the adhesive surface,
Characterized in that the guide portion is provided with an adhesive material.
Sealing tape.
6. The method of claim 5,
And an indication line for indicating the center of the sealing tape is formed on the upper surface corresponding to the guide portion.
Sealing tape.
(a) forming a sealing tape sheet having a predetermined area;
(b) forming an adhesive surface on the bottom surface of the sealing tape sheet;
(c) the upper surface of the sealing tape sheet includes a first concave portion having an annular first width and a second concave portion continuing to at least one of right and left sides of the first concave portion and having a second width Pressing with a roll-type cutter; And
(d) cutting the rectangular sheet into at least one sealing tape having a predetermined thickness.
8. The method of claim 7,
The cut sealing tape may be,
A first convex portion extending in the longitudinal direction having the first width and a second convex portion extending in the longitudinal direction and continuing to at least one of the right and left sides of the first convex portion and having a second width, Wherein the sealing tape has a surface on which the sealing tape is formed.
8. The method of claim 7,
(e) forming a concave-shaped guide portion on the center line of the adhesive surface, and providing an adhesive material inside the guide portion.
Sheet forming means for forming a sealing tape sheet having a predetermined area;
An adhesive surface forming means for forming an adhesive surface on the bottom surface of the sealing tape sheet;
A first concave portion having an annular first width for pressing an upper surface of the sealing tape sheet and a second concave portion continuing to at least one of right and left sides of the first concave portion and having a second width, ; And
And sheet cutting means including a blade for cutting the rectangular sheet into at least one sealing tape having a predetermined thickness.
11. The method of claim 10,
The cut sealing tape may be,
A first convex portion extending in the longitudinal direction having the first width and a second convex portion extending in the longitudinal direction and continuing to at least one of the right and left sides of the first convex portion and having a second width, Wherein the sealing tape is made of a synthetic resin.
11. The method of claim 10,
The sealing tape production apparatus includes:
And an adhesive material providing means for forming a concave-shaped guide portion on the center line of the adhesive surface and providing an adhesive material inside the guide portion. Sealing tape production equipment.

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