KR20050106681A - Sealant injection nozzle in crack sealer - Google Patents

Abstract

A sealant injection nozzle of a crack sealing apparatus for injecting sealant into a crack formed on a road surface and sealing the same is disclosed. The injection nozzle of the present invention is provided with a first carriage movably installed in the X-axis direction on the frame, a second carriage movably installed in the Y-axis direction on the first carriage, and a sealant installed on the second carriage. A sealant injection nozzle for spraying a crack on the road surface, the sealant injection nozzle comprising: an outer body installed perpendicular to the second carriage; An inner body rotatably installed concentrically with the outer body in the outer body, the inner body having a passage for introducing the molten sealant; And a nozzle tip installed on the inner body to spray the sealant introduced into the passage into the crack. And a squeezer for scraping the sealant injected into the crack from the nozzle tip and pushing it into the crack, and a compressed air jet nozzle for injecting compressed air into the crack to remove contaminants attached to the crack. According to the present invention, by providing a compressed air injection nozzle for blowing compressed air into the crack, the foreign matter adhering to the crack is automatically cleaned before the crack is sealed. In addition, by providing a squeezer for pushing the sealant into the crack, the sealant can be efficiently injected into the crack. In addition, by scraping the sealant sprayed with cracks with a squeezer, no extra flat work is required.

Description

Sealant injection nozzle of crack sealing device {SEALANT INJECTION NOZZLE IN CRACK SEALER}

The present invention relates to a sealant injection nozzle of a crack sealing apparatus, and more particularly, to a sealant injection nozzle of a crack sealing apparatus for injecting and sealing a sealant into a crack formed on a road surface.

Asphalt and concrete on the pavement age over time and gradually become damaged or damaged. In particular, cracks formed in asphalt and concrete pavements, ie cracks, are the biggest cause of shortening the life of the road, and therefore, when cracks are formed, they must be repaired quickly.

The repair of a crack is the method of sealing-processing the crack normally formed. This method is a method of sealing cracks with a sealant. The cracks are cleaned with a cleaner to remove foreign substances, and then molten sealant is injected into the cracks from which the foreign substances have been removed. In addition, the upper surface and the periphery of the crack into which the sealant is injected are pressed by a squeezer or a roller to flatten the crimp.

On the other hand, such a conventional sealing treatment method has a number of cumbersome disadvantages, such as the operator to clean the cracks one by one, injecting the sealant to the cracks, and flat work with a squeezer or roller. This drawback not only requires a lot of labor, but also causes various problems such as delaying work time and lowering work efficiency.

In view of this, in recent years, a crack sealing device for automatically sealing cracks formed on the road surface has been developed. The apparatus is provided in a frame, a first carriage movably installed in the frame in the X-axis direction, a second carriage movably installed in the Y-axis direction in the first carriage, and installed in the second carriage, A sealant spray nozzle for spraying the sealant to the cracks on the road surface, a camera for photographing the road surface, a computer for extracting cracks from the image of the road surface photographed by the camera, a first carriage along the path of the extracted crack, And a controller for controlling a second carriage to move the sealant injection nozzle.

According to the crack sealing apparatus, first, the crack is extracted by photographing the road surface on which the crack is formed, and then the first carriage and the second carriage are moved in the X and Y axis directions along the path of the extracted crack. Then, the sealant injection nozzles installed in the second carriage also move along the path of the crack to inject the sealant into the crack, so that the crack is sealed by the injected sealant.

On the other hand, such a conventional crack sealing apparatus has the advantage of automatically sealing the cracks formed on the road surface, there is still a problem of cleaning the foreign matter attached to the cracks before sealing the cracks.

In addition, the conventional crack sealing apparatus has a problem in that the sealant injected from the sealant injection nozzle cannot be efficiently injected into the crack. This problem causes a decrease in the sealing efficiency of the crack, and thus causes a problem in that the sealing process needs to be redone.

In addition, the conventional crack sealing apparatus has a problem in that the top and the periphery of the crack in which the sealant is injected are still manually pressurized by a squeezer or a roller to make it flat.

Not only this, the conventional crack sealing apparatus has also been pointed out that the worker has to manually move the sealant injection nozzle close to or away from the road surface before and after sealing the crack.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to provide a sealant injection nozzle of the crack sealing device for automatically cleaning the foreign matter attached to the crack before the cracking treatment. .

Another object of the present invention is to provide a sealant injection nozzle of a crack sealing apparatus to increase the sealing treatment efficiency by allowing the sealant injected into the crack to be efficiently injected into the crack.

Still another object of the present invention is to provide a sealant injection nozzle of a crack sealing device which is easy to use by allowing the sealant to automatically flatten the top and the periphery of the crack injected.

It is still another object of the present invention to provide a sealant injection nozzle of a crack sealing apparatus that can provide maximum convenience for an operator by allowing the crack to be automatically approached or separated from the road surface before and after the cracking treatment. .

In order to achieve the above object, the present invention provides a frame, a first carriage movably installed in the X-axis direction on the frame, a second carriage movably installed in the Y-axis direction on the first carriage, The sealant injection nozzle of the crack sealing apparatus provided in the said 2nd carriage and equipped with the sealant injection nozzle which injects a sealant to the crack of a road surface, The said sealant injection nozzle is an outer body installed perpendicular to the said 2nd carriage. Wow; An inner body rotatably installed concentrically with the outer body in the outer body and having a passage for introducing a molten sealant; And a nozzle tip installed on the inner body to spray the sealant introduced into the passage to the crack.

Preferably, it characterized in that it further comprises a squeezer for scraping the sealant injected into the crack from the nozzle tip and pushes it into the crack.

Hereinafter, a preferred embodiment of a sealant injection nozzle of a crack sealing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIG. 1, a crack sealing apparatus includes a frame 10. The frame 10 is provided with a lower wheel 12, and is configured to be towed as needed so that the frame 10 can move to a desired place.

In addition, the first carriage 20 is installed on the frame 10 so that the X axis can be moved, and the second carriage 30 is installed on the first carriage 20 so that the Y axis can be moved. Here, the first carriage 20 moves in the X-axis direction by the X-axis movement means 22, and the second carriage 30 moves in the Y-axis direction by the Y-axis movement means 32.

And the upper part of the frame 10 is provided with a camera 14 for photographing the road surface (E). The camera 14 is, for example, an infrared camera or a digital camera, and captures an image of the road surface E by photographing the road surface E vertically downward.

In addition, the frame 10 processes image data of the road surface E input from the camera 14 to extract the crack E1 formed on the road surface E, and coordinates the path of the extracted crack E1. X-axis movement means 22 to move the first and second carriages 20 and 30 in the X-axis and the Y-axis in accordance with the computer 15 for converting the data and the coordinate data converted by the computer 15. And a controller 16 for controlling the Y-axis movement means 32.

According to such a crack sealing apparatus, first, the frame 10 is moved to the road surface E on which the crack E1 is formed, and then the road surface E is photographed with the camera 14, and the photographed road surface E A crack E1 is extracted from the crack, and the second carriage 30 is cracked by controlling the X-axis movement means 22 and the Y-axis movement means 32 according to the path of the extracted crack E1. Exercise along the path.

On the other hand, the second carriage 30 is provided with a sealant injection nozzle (40). The sealant injection nozzle 40 has a cylindrical nozzle body 42 as shown in Figs. 2 and 3, and the cylindrical nozzle body 42 rotates inside the outer body 42a and the outer body 42a. It consists of an inner body 42b which is installed possibly. In particular, a passage 44 is formed in the inner body 42b, and a nozzle tip 45 is provided at the lower end of the passage 44. The passage 44 is connected with a sealant melter (not shown) to introduce the molten sealant S. The nozzle tip 45 directly injects the molten sealant S introduced into the passage 44 to the crack E1 formed on the road surface E.

According to the sealant injection nozzle 40, the molten sealant S introduced into the passage 44 is injected into the crack E1 of the road surface E to serve to seal the crack E1. Here, a heater 46 is provided on the inner wall of the passage 44, which heats the sealant S that is pushed along the passage 44 to prevent the sealant S from cooling and hardening. do.

Referring again to FIGS. 2 and 3, in the sealant injection nozzle 40 of the present invention, a squeezer 50 for pushing the sealant S injected toward the crack E1 into the crack E1. ) Is installed.

The squeezer 50 is a horseshoe-shaped “Ｕ” shaped block, which is disposed toward the front while surrounding the rear of the nozzle tip 45. The squeezer 50 moves together with the sealant injection nozzle 40 and scrapes the sealant S injected into the periphery of the crack E1 and the crack E1 and simultaneously pushes the sealant S into the crack E1. It serves to make the road surface E flat. Here, the contact member 52 which is in direct contact with the road surface E is installed at the lower end of the squeezer 50. The contact member 52 is made of a rubber material, and prevents the squeezer 50 from being worn in direct contact with the road surface E. FIG. The contact member 52 is configured to be replaced with a new one when it is worn in contact with the road surface E. FIG.

On the other hand, the squeezer 50 is supported by the nozzle body 42 of the sealant injection nozzle 40 through the support device 60. The support device 60 is a sleeve member 62 which is installed to be movable up and down around the outer body 42a of the cylindrical nozzle body 42, and is installed to be movable up and down around the sleeve member 62. And a plurality of support rods 64 for supporting the squeezer 50 and a spring 65 for elastically pressing the support rods 64 downward so that the squeezer 50 may be in close contact with the road surface E. ), And lifting means for lifting up and down the sleeve member 62 provided with the squeezer 50 so that the squeezer 50 can be spaced apart from or in contact with the road surface E. do. In particular, the lifting means is composed of a pair of pneumatic cylinder 66 as shown in Figure 3, the cylinder housing 66a is fixed to the nozzle body 42, the cylinder rod 66b is the sleeve member 62 The sleeve member 62 is lifted up and down while being stretched and contracted by the compressed air entering and exiting.

The support device 60 supports the squeezer 50 to the sealant injection nozzle 40 so that the squeezer 50 can move together with the sealant injection nozzle 40. In addition, by contacting the squeezer 50 to the road surface (E) through the spring 65 to efficiently scrape the sealant (S) injected to the periphery of the crack (E1) to push the inside of the crack (E1). To be able. In addition, after the sealing operation by elevating the squeezer 50 up and down through a pair of pneumatic cylinder 66, the squeezer 50 is spaced from the road surface E or when the sealing surface, (E) makes it possible to automatically contact the squeezer 50.

On the other hand, the support device 60 is further provided with a tension adjusting means for adjusting the tension of the spring (65). The tension adjusting means is screwed on the upper surface of the spring case 67 installed on the sleeve member 62 to surround the spring 65 and the spring case 67 to press or release the upper end of the spring 65. Composed of a tension adjusting screw 68 to be coupled.

This tension adjusting means adjusts the pressing force of the spring 65 against the support rod 64 by adjusting the tension of the spring 65, and by adjusting the pressing force against the support rod 64, The adhesion of the squeezer 50 can be adjusted.

2 and 3, the sealant injection nozzle of the present invention always faces the formation direction of the crack E1 while the squeezer 50 moves along the path of the crack E1. It is provided with a rotating means for rotating the outer body 42a, the squeezer 50 is installed to move

As shown in FIG. 2, the rotating means includes a bearing member 70 rotatably supporting the outer body 42a of the sealant injection nozzle 40 and a cylindrical nozzle body 42 supported by the bearing member 70. Rotation motor 72 for forward and reverse rotation, and the controller 16 for controlling the rotation motor 72 so that the squeezer 50 can rotate in the direction of formation of the crack (E1). . In particular, the controller 16 determines the formation direction of the crack E1 according to the coordinate data input from the computer 15, and then rotates the rotation motor 72 forward and backward at a rotation angle corresponding to the determined value. Do it.

According to the rotation means, when the controller 16 controls the rotation motor 72 according to the direction of formation of the crack (E1), the rotation motor 72 is rotated forward and backward at a predetermined rotation angle while the outer body 42a ) Is rotated forward and reverse, and the outer body 42a is rotated forward and reverse at a predetermined rotation angle, the squeezer 50 is also rotated forward and reverse. As a result, the squeezer 50 is always directed in the direction of formation of the crack E1 while being rotated forward and backward according to the formation direction of the crack E1 formed on the road surface E, as shown in FIG. Accordingly, the sealant S injected into the crack E1 can be efficiently pushed into the crack E1.

Meanwhile, as shown in FIG. 2, the rotary motor 72 and the outer body 42a are connected by a gear device 74, and the gear device 74 is a drive gear installed at an output shaft of the rotary motor 72. 74a and driven gear 74b provided around the outer body 42a so as to be engaged with the drive gear 74a. The gear device 74 transmits the power of the rotary motor 72 to the outer body 42a.

2 and 3, the sealant injection nozzle of the present invention includes a compressed air injection nozzle 80 for injecting compressed air to the crack E1 of the road surface E. As shown in FIG.

The compressed air injection nozzle 80 is fixed to the sleeve member 62 of the support device 60 for supporting the sealant injection nozzle 40, in particular the squeezer 50, and is directed toward the front of the nozzle body 42. It is arranged so as to be supplied with a high-pressure compressed air from the compressor (82) and injected to the crack (E1) of the road surface (E).

The compressed air injection nozzle 80 serves to remove contaminants attached to the crack E1 in advance by spraying high pressure compressed air on the crack E1 formed on the road surface E. In particular, by removing the contaminants attached to the crack (E1) in advance, during the sealing process, serves to maximize the sealing treatment efficiency.

Next, the operation of the present invention having such a configuration will be described with reference to FIGS. 1 to 4. First, as shown in FIG. 1, the frame 10 of the present invention is pulled and moved to the upper part of the road surface E to be repaired. Then, the pneumatic cylinder 66 is extended to bring the squeezer 50 into close contact with the road surface E. FIG.

When the adhesion of the squeezer 50 is completed, the road surface E is photographed by the camera 14 to capture an image of the road surface E. At this time, the image of the road surface E captured by the camera 14 is input to the computer 15, in which the image of the input road surface E is binarized and filtered while only the crack E1 is extracted. The extracted crack E1 is processed by the computer 15 and converted into coordinate data, and the converted coordinate data is input to the controller 16.

In this state, the controller 16 operates the X-axis movement means 22 and the Y-axis movement means 32 according to the input coordinate data to place the sealant injection nozzle 40 in the initial position. When the movement to the initial position is completed, the controller 16 operates the X-axis movement means 22 and the Y-axis movement means 32 according to the input coordinate data again to crack the sealant injection nozzle 40. Move along the path of E1).

On the other hand, the sealant injection nozzle 40 moving along the path of the crack (E1), as shown in Figures 2 and 3, the molten sealant (S) supplied from the sealant melter (not shown) is injected into the crack (E1) In the injected sealant S, the crack E1 is sealed.

Meanwhile, in the process of moving the sealant injection nozzle 40 along the path of the crack E1, the squeezer 50 installed thereon is also moved at the same time. In this case, the squeezer 50 moving along the sealant injection nozzle 40 While pushing the sealant S injected into the crack E1 into the crack E1, the work surface of the road E is smoothed at the same time.

In addition, the controller 16 also controls the rotational motor 72 according to the coordinate data of the crack E1 input from the computer 15, wherein the rotational motor 72 is the outer body of the sealant injection nozzle 40 ( 42a) is rotated forward and backward at a predetermined angle, and as the outer body 42a is rotated forward and backward at a predetermined angle, the squeezer 50 installed therein is also forward and reversed so as to face the direction of formation of the crack E1. do. As a result, the squeezer 50 that faces the formation direction of the crack E1 is parallel to the X-axis movement, the Y-axis movement, and the rotational movement along the path and the formation direction of the crack E1, as shown in FIG. The sealant S injected into the crack E1 is efficiently pushed into the crack E1.

In addition, in the process where the sealant injection nozzle 40 and the squeezer 50 seal the crack E1, the compressed air injection nozzle 80 in FIG. Sprayed, and contaminants adhering to the crack E1 are removed before the sealing operation is carried out.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

As described above, the sealant injection nozzle of the crack sealing apparatus according to the present invention is provided with a compressed air injection nozzle for blowing high pressure compressed air into the crack on the road surface, and is attached to the crack before sealing the crack. Automatically cleans up foreign objects. In addition, by providing a squeezer which pushes the sealant injected into the crack into the crack, the sealant can be efficiently injected into the crack. In addition, by scraping the sealant sprayed with cracks with a squeezer, no extra flat work is required. In addition, the sealant injection nozzle is automatically approached or spaced apart from the road surface before and after the cracking treatment, thereby providing maximum operator convenience.

1 is a cross-sectional view showing the configuration of a sealant injection nozzle of a crack sealing apparatus according to the present invention;

Figure 2 is an enlarged cross-sectional view showing in detail the sealant injection nozzle of the present invention;

3 is a cross-sectional view taken along line III-III of FIG. 2;

4 is a cross-sectional view taken along the line IV-IV of FIG. 2.

♣ Explanation of symbols for the main parts of the drawing ♣

10: frame 12: wheels

20: first carriage 22: X-axis movement means

30: second carriage 32: Y-axis movement means

40: sealant injection nozzle 42a: outer body

42b: inner body 44: passage

45: nozzle tip 46: heater

50: squeezer 52: contact member

60: support device 62: sleeve member

64: support rod 65: spring

66: pneumatic cylinder 70: bearing member

72: rotary motor 80: compressed air injection nozzle

82: compressor

Claims (7)

A frame, a first carriage movably installed in the X-axis direction on the frame, a second carriage movably installed in the Y-axis direction on the first carriage, and a sealant provided on the second carriage In the sealant injection nozzle of the crack sealing apparatus provided with the sealant injection nozzle which injects into the crack of the surface, The sealant injection nozzle, An outer body installed perpendicular to the second carriage; An inner body rotatably installed concentrically with the outer body in the outer body and having a passage for introducing a molten sealant; And a nozzle tip installed on the inner body to spray the sealant introduced into the passage to the crack. The method of claim 1, And a squeezer for scraping the sealant sprayed toward the crack from the nozzle tip and pushing the sealant into the crack. The method of claim 2, Support means for supporting the squeezer to the sealant injection nozzle, The support means may include a sleeve member which is installed to move upward and downward around an outer body of the sealant injection nozzle; A plurality of support rods installed up and down around the sleeve member and supporting the squeezer; A spring for elastically pressing the support rods downward so that the squeezer can be in close contact with the road surface; A pneumatic cylinder supporting the sleeve member to the outer body, wherein the squeezer is lifted up and down with respect to the outer body while lifting the sleeve member up and down so as to be spaced apart from or in contact with the road surface. Sealant injection nozzle of the crack sealing device, characterized in that. The method of claim 3, wherein When the squeezer is moved along the path of the crack, further comprising a rotating means for rotating the outer body is installed the squeezer so as to rotate while facing the direction of formation of the crack, The rotating means includes a bearing member for rotatably supporting the outer body; Sealant injection nozzle of the crack sealing device, characterized in that it is operatively connected to the outer body, the rotating motor for forward and reverse rotation movement of the outer body supported by the bearing member. The method according to any one of claims 1 to 4, And a compressed air jet nozzle for injecting compressed air to the crack to remove contaminants attached to the crack. The method of claim 1, And the heater for heating the sealant to prevent the sealant moving in the sealant from being cooled and hardened. The method according to any one of claims 2 to 4, The lower end of the squeezer is further provided with a contact member in direct contact with the road surface, the contact member is made of a rubber material, when worn, the sealant injection nozzle of the crack sealing apparatus, characterized in that configured to be replaced with a new one.