Geogrid asphalt coating device

Abstract

A geogrid asphalt coating device comprises an unwinding mechanism, a coating mechanism, a scraping mechanism and a drying mechanism which are sequentially arranged in the conveying direction of geogrids. Rolled civil grids are placed on the unwinding mechanism. The coating mechanism comprises a coating box and a first pressing roller rotationally arranged in the coating box, the axis of the first pressing roller is parallel to the axis of the coiled civil grille, the lower portion of the first pressing roller is located in coating of the coating box, the civil grille penetrates through the lower portion of the first pressing roller, and the upper surface of the civil grille makes contact with the outer circle face of the first pressing roller; the scraping mechanism comprises two second pressing rollers which are arranged in parallel, and the civil grille is arranged between the two second pressing rollers in a penetrating mode. According to the utility model, the civil grid to be coated with asphalt is conveyed to the position below the first compression roller in the coating box, so that the two surfaces of the civil grid can be completely immersed in the asphalt coating in the coating box, the phenomenon that the two surfaces of the civil grid are not uniformly coated with the asphalt is reduced, and the phenomenon that the corrosion resistance and the weather resistance of the civil grid are influenced by non-uniform coating is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of geogrids, in particular to a geogrid asphalt coating device. Background Art

[0002] Civil grid is a component used in civil engineering, commonly used in road drainage systems, bridges and other building structures to increase the structure's bearing capacity, drainage performance and anti-slip performance.

[0003] In the production process of civil grating, in order to increase its weather resistance and corrosion resistance, asphalt coating is usually applied on its surface. The prior art generally uses an asphalt coating device to coat the surface of the civil grating with asphalt. There is a geogrid asphalt coating device with patent number CN217419007U that discloses the structure of such asphalt coating. The geogrid asphalt coating device includes a chassis, a printing wheel for coating the civil grating is provided in the chassis, a conveyor belt for conveying the civil grating is provided below the printing wheel, and a drying lamp located above the conveyor belt is provided at the discharge port of the chassis to speed up the molding speed and prevent the asphalt coating from spilling out of the chassis and causing pollution. However, the printing wheel of the asphalt coating device is arranged above one side of the civil grating, and cannot coat the other side of the civil grating close to the conveyor belt, resulting in uneven asphalt coating of the civil grating. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a geogrid asphalt coating device.

[0005] The technical solution of this utility model is as follows:

[0006] A geogrid asphalt coating device comprises an unwinding mechanism, a coating mechanism and a scraping mechanism which are arranged in sequence;

[0007] The unwinding mechanism is arranged on the reference plane and installed on the support frame, and a rolled civil engineering grid is placed on the unwinding mechanism;

[0008] The coating mechanism comprises a coating box and a first pressing roller rotatably arranged in the coating box, the coating box has an upward opening, the axis of the first pressing roller is parallel to the axis of the rolled civil engineering grid, the lower part of the first pressing roller is located in the coating of the coating box, the civil engineering grid passes under the first pressing roller, and the upper surface of the civil engineering grid contacts the outer circumferential surface of the first pressing roller;

[0009] The scraping mechanism includes two second pressing rollers arranged in parallel, the second pressing rollers are rotatably arranged above the coating box, the axes of the second pressing rollers are parallel to the axes of the rolled civil grid, and the projections of the second pressing rollers are located in the opening;

[0010] The civil engineering grid passes under the first pressing roller and then passes between the two second pressing rollers.

[0011] The civil grating transported by the unwinding mechanism can be immersed in the paint box for coating with asphalt paint, and both sides of the civil grating can be completely coated. The civil grating with asphalt paint will adhere to thicker asphalt paint. The excess asphalt paint can be squeezed out by the two second pressure rollers of the scraping mechanism, and the excess asphalt paint falls back into the paint box for collection.

[0012] Regarding the installation structure of the two second pressure rollers, both ends of the second pressure rollers are supported above the paint box by vertical support rods, and the two second pressure rollers are distributed up and down on the vertical support rods. The axis of the second pressure rollers is perpendicular to the length direction of the vertical support rods, so that the two second pressure rollers can squeeze out excess asphalt paint from the civil grille by rolling, so that the asphalt paint on both sides of the civil grille is evenly coated.

[0013] In order to adapt to civil engineering grids of different models or thicknesses, the spacing between the two second pressing rollers is adjustable.

[0014] The liquid level of the asphalt paint will gradually decrease in the paint box. In order to facilitate the use of the remaining asphalt paint and then add paint, the height position of the first pressing roller in the paint box is adjustable.

[0015] The installation structure of the first pressure roller and the paint box is that the two ends of the first pressure roller are rotatably provided with a central shaft, the central shaft is coaxially arranged with the first pressure roller, and the central shaft is connected to the inner wall of the paint box through an adjusting member.

[0016] The specific structure of the first pressure roller with adjustable position in the paint box is that vertical rods are provided at the outer ends of the two central axes, and the vertical rods are vertically arranged so that the first pressure roller can move in the vertical direction. The adjusting part passes through the paint box and is connected to the vertical rods. The adjusting part is used to fix the first pressure roller in the paint box.

[0017] In order to reduce the wear caused by the contact between the civil grating and the outer edge of the paint box during transportation, a guide roller is provided on the upper side of the paint box close to the unwinding mechanism. The axis of the guide roller is parallel to the axis of the rolled civil grating and is located below the rolled civil grating. The lower surface of the civil grating can contact the outer cylindrical surface of the guide roller, and the guide roller plays a role in reducing the wear between the civil grating and the paint box.

[0018] In order to facilitate the vertical rod to drive the first pressing roller to move vertically in the paint box, slide rails are vertically arranged on the opposite sides of the inner wall of the paint box, and the vertical rod is slidably connected in the slide rails.

[0019] In order to facilitate drying after asphalt coating, a drying mechanism is arranged behind the scraper mechanism. The drying mechanism includes a drying box and a third pressing roller rotatably arranged in the drying box. The axis of the third pressing roller is parallel to the axis of the rolled civil engineering grille. The civil engineering grille passes under or over the third pressing roller, and its upper surface or lower surface contacts the outer cylindrical surface of the second pressing roller.

[0020] In order to increase the drying time and drying effect of the civil grille coated with asphalt coating, the axis of the third pressing roller is located at 1 / 3-2 / 3 of the internal height of the drying box. This can also extend the length of the civil grille in the drying box and accelerate the drying of the asphalt coating on the civil grille.

[0021] The beneficial effects of the utility model are:

[0022] By conveying the civil engineering grid to be coated with asphalt to the bottom of the first pressing roller in the coating box, both sides of the civil engineering grid can be completely immersed in the asphalt coating in the coating box, which can reduce the uneven coating of asphalt on both sides of the civil engineering grid and reduce the corrosion resistance and weather resistance of the civil engineering grid affected by the uneven coating;

[0023] The civil engineering grid conveyed from the coating box will carry more or thicker asphalt coating, which will drip downward when the civil engineering grid moves, and will also affect the uniformity of both sides of the civil engineering grid. Therefore, the civil engineering grid is passed through two second pressing rollers, and the excess asphalt coating of the civil engineering grid is squeezed into the coating box by the two second pressing rollers, which can not only improve the uniformity of the asphalt coating coating, but also reduce the waste of coating;

[0024] The drying device can be used to quickly dry the civil grid coated with asphalt paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure;

[0027] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 3 It is a top view;

[0029] Figure 4 It is a front view;

[0030] The components represented by the reference numerals in the figure are:

[0031] 1. Unwinding mechanism; 2. Support frame; 3. Paint box; 4. First pressure roller; 41. Center axis; 5. Second pressure roller; 51. Roller shaft; 6. Vertical support rod; 61. Socket; 7. Adjustment member; 8. Vertical rod; 81. Adjustment hole; 9. Slide rail; 10. Third pressure roller; 11. Drying box; 12. Rolled civil grid; 13. Guide roller. DETAILED DESCRIPTION

[0032] like Figure 1The geogrid asphalt coating device shown in the figure comprises an unwinding mechanism 1, a coating mechanism, a scraping mechanism, a drying mechanism and a rewinding mechanism which are arranged in sequence. The unwinding mechanism 1 is arranged on a reference plane, on which a rolled geogrid 12 is placed. One end of the rolled geogrid 12 passes under the first pressing roller 4 and then passes between the two second pressing rollers 5, and then passes under the third pressing roller 10 and is dried, and then is rewinded by the rewinding mechanism. The rewinding mechanism is a prior art and is not described in detail here and is not shown in the figure.

[0033] The coating mechanism includes a coating box 3 and a first pressing roller 4 rotatably arranged in the coating box 3. The coating box 3 is located below the unwinding mechanism 1. The coating box 3 has an upward opening. The axis of the first pressing roller 4 is parallel to the axis of the rolled earth and engineering grid 12. The lower part of the first pressing roller 4 is located in the coating of the coating box 3. The earth and engineering grid 12 passes under the first pressing roller 4, and its upper surface contacts the outer circumferential surface of the first pressing roller 4. The installation structure of the first pressing roller 4 and the coating box 3 is that the two ends of the first pressing roller 4 are rotatably provided with a central shaft 41, the central shaft 41 is coaxially arranged with the first pressing roller 4, and the central shaft 41 is connected to the inner wall of the coating box 3 through an adjusting member 7.

[0034] The specific structure of the adjustable position of the first pressing roller 4 in the coating box 3 is as follows: the outer ends of the two central shafts 41 are provided with vertical rods 8, the vertical rods 8 are vertically arranged, and the axis of the vertical rods 8 is perpendicular to the axis of the central shaft 41, so that the first pressing roller 4 can move in the vertical direction, and the adjusting member 7 passes through the coating box 3 and is connected to the vertical rods 8, and the adjusting member 7 is used to fix the first pressing roller 4 in the coating box 3. The vertical rod 8 is provided with a plurality of adjusting holes 81 along the length direction, and the adjusting member 7 is an adjusting bolt, and the adjusting hole 81 is adapted to the adjusting bolt, and the adjusting bolt passes through the coating box 3 along the axis direction of the first pressing roller 4 and extends into the adjusting hole 81, and by adjusting the position of the adjusting bolt in the adjusting hole 81, the height of the first pressing roller 4 in the coating box 3 can be achieved, and the height of the coating box 3 matches the liquid level of the asphalt coating.

[0035] The existing rollers that press the civil engineering grille 12 into the paint are generally fixed structures. When the paint liquid level leaks out from the bottom of the roller, paint is generally added to prevent the civil engineering grille 12 from entering the paint. This results in new paint being added to the paint box 3 before the paint is used up, which easily causes paint waste. However, when the asphalt paint liquid level is lowered and the asphalt paint liquid level leaks out from the lowest point of the first roller 4, the utility model does not need to add asphalt paint to the paint box 3. It only needs to adjust the adjustment bolt and adjust the height position of the first roller 4 on the vertical rod 8. In order to facilitate the vertical rod 8 to drive the first roller 4 to move vertically in the paint box 3, a slide rail 9 is vertically provided on the opposite side of the inner wall of the paint box 3. The vertical rod 8 can be slidably connected in the slide rail 9 to prevent the vertical rod 8 from being offset and affecting the first roller 4 from pressing down the civil engineering grille.

[0036] The scraping mechanism includes two second rollers 5 arranged in parallel. The second rollers 5 are rotatably arranged above the paint box 3. The axis of the second rollers 5 is parallel to the axis of the rolled civil grille 12, and the projection thereof is located in the opening. The excess asphalt squeezed out by the two second rollers 5 can be collected into the paint box 3. The civil grille is inserted between the two second rollers 5. Regarding the installation structure of the two second rollers 5, the two ends of the second rollers 5 are supported above the paint box 3 by vertical support rods 6, and the two second rollers 5 are distributed up and down on the vertical support rods 6. The axis of the second rollers 5 is perpendicular to the length direction of the vertical support rods 6, so that the two second rollers 5 can squeeze the excess asphalt coating of the civil grille by rolling, so that the asphalt coating on both sides of the civil grille is evenly coated. In order to adapt to civil grilles of different models or thicknesses, the spacing between the two second rollers 5 is adjustable.

[0037] Specifically, the two second pressing rollers 5 are respectively plugged into and connected with the corresponding vertical support rods 6. The vertical support rods 6 are provided with a plurality of insertion holes 61 at equal intervals along the length direction. The plurality of insertion holes 61 are connected and arranged to achieve fine adjustment of the spacing between the two second pressing rollers 5. The second pressing roller 5 includes a roller shaft 51. The axis of the roller shaft 51 is coaxial with the axis of the second pressing roller 5. Both ends of the roller shaft 51 pass through both ends of the second pressing roller 5 and extend to the insertion holes 61 of the vertical support rods 6 on both sides corresponding to each other. By adjusting the position of the roller shaft 51 in the insertion hole 61, the spacing between the two second pressing rollers 5 can be adjusted.

[0038] The civil grating transported by the unwinding mechanism 1 can be immersed in the paint box 3 to be coated with asphalt paint, and both sides of the civil grating can be completely coated. The civil grating with asphalt paint will adhere to thicker asphalt paint. The two second pressure rollers 5 of the scraping mechanism can squeeze out the excess asphalt paint, and the excess asphalt paint falls back into the paint box 3 for collection.

[0039] The asphalt paint in the paint box 3 is pre-mixed. After the asphalt paint in the paint box 3 is used, it needs to be put into the paint box 3 again to reduce the waste of asphalt paint. The liquid level of the asphalt paint will gradually decrease in the paint box 3. In order to facilitate the use of the remaining asphalt paint and then put in the paint, the height position of the first pressure roller 4 in the paint box 3 is adjustable.

[0040] The specific structure of the above-mentioned drying mechanism is that the drying mechanism includes a drying box 11 and a third pressing roller 10 rotatably arranged in the drying box 11. The inner wall of the drying box 11 is provided with a heating wire. The drying box 11 can be arranged above the paint box 3 or below the paint box 3. When arranged above the paint box 3, the opening of the drying box 11 is downward, and when arranged below the paint box 3, the opening of the drying box 11 is upward. The axis of the third pressing roller 10 is parallel to the axis of the rolled civil grid 12. The civil grid passes through the third pressing roller 10, and its upper surface or lower surface contacts the outer cylindrical surface of the second pressing roller 5. In order to increase the drying time and drying effect of the civil grid coated with asphalt paint, the axis of the third pressing roller 10 is located at 1 / 3-2 / 3 of the internal height of the drying box 11, which can also extend the length of the civil grid in the drying box 11 and accelerate the drying of the asphalt paint on the civil grid.

[0041] The civil grille transported from the unwinding mechanism 1 to the paint box 3 may touch the outer edge of the paint box 3. In order to reduce the wear caused by the contact between the civil grille and the outer edge of the paint box 3 during transportation, a guide roller 13 is provided on the upper end of the paint box 3 close to the unwinding mechanism 1. The axis of the guide roller 13 is parallel to the axis of the rolled civil grille 12 and is located below the rolled civil grille 12. The lower surface of the civil grille can contact the outer cylindrical surface of the guide roller 13. The guide roller 13 reduces the wear between the civil grille and the paint box 3 and facilitates the transportation of the civil grille 12.

Claims

1. A geogrid asphalt coating device, characterized in that: It comprises an unwinding mechanism (1), a coating mechanism and a scraping mechanism which are arranged in sequence; The unwinding mechanism (1) is arranged on a reference plane, on which a rolled civil engineering grid (12) is placed; The coating mechanism comprises a coating box (3) and a first pressing roller (4) rotatably arranged in the coating box (3); the coating box (3) has an upward opening, the axis of the first pressing roller (4) is parallel to the axis of the rolled civil grid (12), and the lower part of the first pressing roller (4) is located in the coating of the coating box (3); The scraping mechanism comprises two second pressing rollers (5) arranged in parallel, wherein the second pressing rollers (5) are rotatably arranged above the coating box (3), the axes of the second pressing rollers (5) are parallel to the axes of the rolled civil grid (12), and the projections of the second pressing rollers are located in the opening; The civil engineering grid (12) passes around the bottom of the first pressing roller (4) and then passes between the two second pressing rollers (5).

2. The geogrid asphalt coating device according to claim 1, characterized in that: The two ends of the second pressing roller (5) are supported above the paint box (3) via vertical support rods (6), and the two second pressing rollers (5) are distributed up and down on the vertical support rods (6).

3. The geogrid asphalt coating device according to claim 2, characterized in that: The distance between the two second pressing rollers (5) is adjustable.

4. The geogrid asphalt coating device according to claim 1, characterized in that: The height position of the first pressing roller (4) in the coating box (3) is adjustable.

5. The geogrid asphalt coating device according to claim 4, characterized in that: The two ends of the first pressing roller (4) are rotatably provided with a central shaft (41), and the central shaft (41) is connected to the inner wall of the coating box (3) through an adjusting member (7).

6. The geogrid asphalt coating device according to claim 5, characterized in that: The outer ends of the two central shafts (41) are both provided with vertical rods (8), and the adjusting member (7) passes through the paint box (3) and is connected to the vertical rods (8).

7. The geogrid asphalt coating device according to claim 1, characterized in that: The paint box (3) is provided with a guide roller (13) at the upper end close to the unwinding mechanism (1); the axis of the guide roller (13) is parallel to the axis of the rolled earthwork grid (12), and the lower surface of the earthwork grid contacts the outer circumference of the guide roller (13).

8. The geogrid asphalt coating device according to claim 1, characterized in that: Slide rails (9) are vertically arranged on opposite sides of the inner wall of the paint box (3), and the vertical rod (8) is slidably connected in the slide rails (9).

9. The geogrid asphalt coating device according to claim 8, characterized in that: A drying box is arranged behind the scraping mechanism, and a third pressing roller (10) is rotatably arranged in the drying box (11). The axis of the third pressing roller (10) is parallel to the axis of the rolled earthwork grille (12), and the earthwork grille passes under or over the third pressing roller (10).

10. The geogrid asphalt coating device according to claim 9, characterized in that: The axis of the third pressing roller (10) is located at 1 / 3-2 / 3 of the internal height of the drying box (11).

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