Preparation device of anti-crack fiber for asphalt pavement

Abstract

The utility model belongs to the technical field of anti-crack fiber preparation devices, in particular to a preparation device of anti-crack fibers for asphalt pavements, which comprises a device platform and two grating roll bearing frames, a coating box is mounted on the device platform, a feeding box is mounted on one side of the device platform, an output end of a liquid conveying pipe is arranged in the feeding box in a penetrating manner, and an output end of the liquid conveying pipe is connected with the grating roll bearing frames. An opening and closing assembly is arranged at the output end of the feeding box, and a circulation assembly is arranged on one side of the feeding box. The feeding box is installed to add coating liquid, when the coating liquid in the coating box is reduced, the circulation assembly is started to add the coating liquid, meanwhile, after the coating liquid in the feeding box descends, the outlet end of the liquid conveying pipe is automatically opened through the opening and closing assembly, and the coating liquid in the storage tank is conveyed into the feeding box; and after the coating liquid in the material box rises to the specified horizontal line, the opening and closing assembly blocks the outlet end of the liquid conveying pipe, conveying of the coating liquid is cut off, and the production efficiency of the preparation device for the anti-cracking fibers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the preparation technical field of anti -crack fiber, concretely is a preparation device of anti -crack fiber for asphalt pavement. BACKGROUND

[0002] The anti -crack fiber for asphalt pavement is a kind of high-performance geosynthetic material, generally called glass fiber geogrid, and the glass fiber geogrid is widely applied in civil engineering field, especially in asphalt pavement, plays the role of reinforcing and preventing cracking, the glass fiber geogrid can improve the crack resistance, durability and anti -rut ability of asphalt pavement, and the preparation device of the anti -crack fiber for asphalt pavement refers to the equipment for producing fiber material capable of enhancing the performance of asphalt mixture, and the machine of coating device belongs to one kind of preparation device of the anti -crack fiber for asphalt pavement, which is used to coat special material on the surface of glass fiber geogrid, and the coating treatment can effectively resist the erosion of external factors such as ultraviolet rays and chemical substances, thereby prolonging the service life and improving the compatibility with asphalt mixture, ensuring that the glass fiber geogrid is not isolated from asphalt mixture but firmly combined together in asphalt layer.

[0003] However, when the preparation device coats the glass fiber grid, the staff needs to observe the coating liquid in the coating box regularly to avoid the problem of uneven coating or interruption of the glass fiber grid caused by too little coating liquid, and manual intervention increases the complexity and time cost of operation, thereby reducing the production efficiency, therefore, it is necessary to research a preparation device of the anti -crack fiber for asphalt pavement to improve the production efficiency of the preparation device for the anti -crack fiber. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a preparation device of the anti -crack fiber for asphalt pavement to solve the technical problem of increasing time cost and reducing production efficiency caused by manual addition of coating liquid in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a preparation device of the anti -crack fiber for asphalt pavement, including device platform and two grid roll bearing frames, two grid roll bearing frames are symmetrically arranged at the front and rear ends of device platform, one group of number of roller and second group of number of roller are symmetrically installed at the both ends of device platform, coating box is installed on device platform, and coating box is located below one group of number of roller, coating roller is arranged in coating box;

[0006] The left side of the device platform is fixedly provided with a supporting plate, a feeding tank is installed on the supporting plate, and the feeding tank is located at one side of the paint tank, one side of the device platform is provided with a storage tank, the bottom end of the storage tank is fixedly connected with a liquid delivery pipe, the output end of the liquid delivery pipe penetrates into the feeding tank, the output end of the feeding tank is provided with an opening and closing assembly, and the opening and closing assembly is located in the feeding tank, one side of the feeding tank is provided with a flow-through assembly, and the feeding tank is connected with the inside of the paint tank through the flow-through assembly.

[0007] Preferably, the opening and closing assembly comprises a connecting sleeve, a plug, a connecting sheet, a connecting plate, a connecting rod, a floating ball and a water outlet, the connecting sleeve is fixedly installed on the liquid delivery pipe, the output end of the liquid delivery pipe penetrates into the connecting sleeve, the plug is slidably installed in the connecting sleeve, and the plug is opposite to the liquid delivery pipe, the connecting sheet is fixedly installed on the plug, the connecting plate is fixedly installed on the connecting sleeve, one end of the connecting sheet penetrates through the inside of the connecting sleeve and is movably installed on the connecting plate, the connecting rod is located below the connecting sleeve and is movably connected with the connecting sheet, the floating ball is installed at the bottom end of the connecting rod, and the water outlet is arranged on the connecting sleeve and located at the middle position of the plug and the liquid delivery pipe.

[0008] Preferably, the flow-through assembly comprises a water inlet groove and a one-way valve plate, the water inlet groove is arranged on one side of the feeding tank, and the other end of the water inlet groove extends into the inside of the paint tank, and the one-way valve plate is movably installed in the water inlet groove.

[0009] Preferably, one end of the plug is fixedly provided with a sealing gasket, and the sealing gasket is opposite to the output end of the liquid delivery pipe.

[0010] Preferably, the bottom end of the device platform is fixedly provided with a storage box, a DC motor is fixedly installed in the storage box, the output end of the DC motor is fixedly connected with a lead screw, a sliding ring is threadedly connected with the lead screw, an L-shaped rod is fixedly installed on the sliding ring, a sliding groove is arranged on the device platform, one end of the L-shaped rod penetrates through the inside of the sliding groove and is slidably connected with the sliding groove, a scraper is fixedly installed on the L-shaped rod, and one side of the scraper is in contact with the plane of the device platform, a limiting assembly is arranged on the device platform and located at one side of the paint tank, the other end of the DC motor is connected with the limiting assembly, and one side of the device platform is provided with an opening and the opening is located at one side of the scraper.

[0011] Preferably, the limiting assembly comprises a limiting rod and a limiting sleeve, the limiting rod is fixedly installed on the device platform, and the limiting sleeve is slidably arranged on the limiting rod and fixedly connected with one end of the L-shaped rod.

[0012] Preferably, a drying device is fixedly installed on the device platform and located at the middle position of the device platform.

[0013] Compared with the prior art, the utility model has the advantages of

[0014] 1. The utility model discloses a feeding tank and a float ball are installed to automatically add paint liquid in the paint tank, when the paint liquid in the paint tank reduces, the flow assembly is automatically opened to make the paint liquid in the feeding tank transport to the paint tank, keep the paint liquid in the paint tank always at a horizontal line to facilitate the continuity of the glass fiber grid coating, when the paint liquid in the paint tank rises to the flow assembly, the flow assembly is closed, and when the paint liquid in the feeding tank drops, the outlet end of the infusion pipe is automatically opened through the opening and closing assembly, the paint liquid in the storage tank is transported to the feeding tank through the infusion pipe, when the paint liquid in the feeding tank rises to the specified horizontal line, the opening and closing assembly will block the outlet end of the infusion pipe, thereby cutting off the paint liquid transport, the automatic adding device formed integrally automatically adds the paint liquid, without manual intervention, while ensuring that the paint liquid in the paint tank is sufficient, avoiding the problem of uneven or interrupted glass fiber grid coating caused by insufficient coating liquid, and further improving the production efficiency of the preparation device for anti-cracking fiber.

[0015] 2. The utility model discloses a scraper is installed to clean the paint dropped on the device platform, first, the DC motor is started to drive the screw rod to rotate, the screw rod will drive the L-shaped rod to slide in the sliding groove through the slip ring when rotating, and the L-shaped rod will drive the scraper in contact with the device platform plane to move to scrape and clean the paint dropped on the device platform, the scraper will push the paint to the opening, and the paint is discharged through the opening (a collecting box is arranged below the opening at the bottom of the device platform, and the impurities scraped by the scraper fall in the collecting box through the opening), by regularly cleaning the plane of the device platform, too much paint impurities are avoided to accumulate on the device platform in the later period, and the cleanliness of the preparation device is further ensured. ACCURACY

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 the enlarged schematic diagram of the structure in A;

[0018] Figure 3 It is the plug structure schematic diagram of the utility model;

[0019] Figure 4 It is Figure 1 the enlarged schematic diagram of the structure in B;

[0020] Figure 5 It is the limiting component structure schematic diagram of the utility model.

[0021] In the figure: 1, device platform; 2, grid roll bearing frame; 3, first roller group; 4, second roller group; 5, paint roller; 6, drying device; 7, paint tank; 8, storage tank; 9, support plate; 10, feeding tank; 11, liquid delivery pipe; 12, connecting sleeve; 13, plug; 14, connecting piece; 15, connecting plate; 16, connecting rod; 17, floating ball; 18, water outlet; 19, gasket; 20, water inlet; 21, one-way valve plate; 22, storage box; 23, DC motor; 24, screw; 25, slip ring; 26, L-shaped rod; 27, scraper; 28, limiting rod; 29, limiting sleeve; 30, sliding groove; 31, opening. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figure 1 - Figure 5 A preparation device for anti-cracking fibers for asphalt pavement, comprising a device platform 1 and two grid roll bearing frames 2, the two grid roll bearing frames 2 are symmetrically arranged at the front and rear ends of the device platform 1 (a drive motor is arranged on the grid roll bearing frame 2 on the right side, which drives the rotation of the shaft on the grid roll bearing frame 2 to wind the glass fiber grid roll with coating completed on the other side), a first roller group 3 and a second roller group 4 are symmetrically installed at the two ends of the device platform 1, a paint tank 7 is installed on the device platform 1, and the paint tank 7 is located below the first roller group 3, a paint roller 5 is arranged in the paint tank 7, a drying device 6 is fixedly installed on the device platform 1, and the drying device 6 is located at the middle part of the device platform 1. When the anti-cracking fibers for asphalt pavement are prepared, first, the finished glass fiber grid roll is clamped on the grid roll bearing frame 2, then one end of the glass fiber grid is threaded through the first roller group 3 and the second roller group 4 and wound on the grid roll bearing frame 2 on the other end, and then the right grid roll bearing frame 2 is started to rotate to pull and wind the glass fiber grid. At the same time, the glass fiber grid passes through the paint tank 7 when moving, and the glass fiber grid is coated with paint liquid, and the coated glass fiber grid is dried by the drying device 6. The glass fiber grid after drying is rewound on the right grid roll bearing frame 2. However, when the preparation device coats the glass fiber grid, the staff needs to observe the paint liquid in the paint tank 7 from time to time to avoid the problem of uneven coating or interruption of the glass fiber grid caused by too little paint liquid. Manual intervention increases the complexity and time cost of operation, thereby reducing the production efficiency.

[0024] The left side of the device platform 1 is fixedly provided with a support plate 9, the support plate 9 is provided with a feeding tank 10, and the feeding tank 10 is located at one side of the paint tank 7. One side of the device platform 1 is provided with a storage tank 8, the bottom end of the storage tank 8 is fixedly connected with a liquid delivery pipe 11, the output end of the liquid delivery pipe 11 penetrates into the feeding tank 10, the output end of the feeding tank 10 is provided with an opening and closing assembly, and the opening and closing assembly is located in the feeding tank 10. One side of the feeding tank 10 is provided with a flow-through assembly, and the feeding tank 10 is connected with the inside of the paint tank 7 through the flow-through assembly. When the paint liquid in the paint tank 7 is automatically added, the feeding tank 10 and the float ball 17 are installed to automatically add the paint liquid in the paint tank 7. When the paint liquid in the paint tank 7 decreases, the flow-through assembly is automatically opened to deliver the paint liquid in the feeding tank 10 to the paint tank 7, so that the paint liquid in the paint tank 7 is always kept on a horizontal line to facilitate the continuity of the coating of the glass fiber grid. When the paint liquid in the paint tank 7 rises to the flow-through assembly, the flow-through assembly is closed, and at the same time, the outlet end of the liquid delivery pipe 11 is automatically opened through the opening and closing assembly, so that the paint liquid in the storage tank 8 is delivered to the feeding tank 10 through the liquid delivery pipe 11. When the paint liquid in the feeding tank 10 rises to a specified horizontal line, the opening and closing assembly will block the outlet end of the liquid delivery pipe 11, so as to cut off the delivery of the paint liquid. The automatic adding device integrally formed automatically adds the paint liquid, without manual intervention, while ensuring that the paint liquid in the paint tank 7 is sufficient, avoiding the problem of uneven or interrupted coating of the glass fiber grid due to insufficient coating liquid, and further improving the production efficiency of the preparation device for anti-cracking fibers.

[0025] Please refer to Figure 2 and Figure 3The opening and closing assembly comprises a connecting sleeve 12, a plug 13, a connecting piece 14, a connecting plate 15, a connecting rod 16, a floating ball 17 and a water outlet 18. The connecting sleeve 12 is fixedly installed on the infusion pipe 11, and the output end of the infusion pipe 11 is arranged in the connecting sleeve 12. The plug 13 is slidably installed in the connecting sleeve 12, and the plug 13 is opposite to the infusion pipe 11. The connecting piece 14 is fixedly installed on the plug 13. The connecting plate 15 is fixedly installed on the connecting sleeve 12, and one end of the connecting piece 14 penetrates through the inside of the connecting sleeve 12 and is movably installed on the connecting plate 15. The connecting rod 16 is located below the connecting sleeve 12 and is movably connected with the connecting piece 14. The floating ball 17 is installed at the bottom end of the connecting rod 16. The water outlet 18 is arranged on the connecting sleeve 12 and is located between the plug 13 and the infusion pipe 11. When the paint liquid in the feeding tank 10 is automatically conveyed, after the paint liquid in the feeding tank 10 is conveyed into the paint tank 7 through the flow assembly, the paint liquid in the feeding tank 10 descends, and the floating ball 17 descends along with the paint liquid. When the floating ball 17 drives the connecting rod 16 to be in a vertical state, the connecting rod 16 will synchronously drive the plug 13 to move forward and separate from one end of the infusion pipe 11 through the connecting piece 14. The paint liquid in the storage tank 8 will flow out through the outlet of the infusion pipe 11, and then flow into the feeding tank 10 through the water outlet 18 to automatically add the paint liquid descending in the feeding tank 10. When the paint liquid rises, the floating ball 17 will rise along with the paint liquid. When the floating ball 17 rises, the plug 13 will be driven to move backward through the connecting piece 14. When the connecting rod 16 is in a vertical state, the sealing gasket 19 at one end of the plug 13 will be in contact with the outlet of the infusion pipe 11 to seal the outlet of the infusion pipe 11, so as to cut off the outflow of the paint liquid.

[0026] Please refer to Figure 2 The flow assembly comprises a water inlet groove 20 and a one-way valve plate 21. The water inlet groove 20 is arranged on one side of the feeding tank 10 and extends to the inside of the paint tank 7. The one-way valve plate 21 is movably installed in the water inlet groove 20. After the paint liquid in the paint tank 7 descends to below the water inlet groove 20, the paint liquid in the feeding tank 10 will push the one-way valve plate 21 to flow into the paint tank 7 through the water inlet groove 20. When the paint liquid in the paint tank 7 rises to above the water inlet groove 20, the resistance of the paint liquid in the paint tank 7 will drive the one-way valve plate 21 to reset to seal the water inlet groove 20 again, so as to cut off the conveying of the paint liquid.

[0027] Please refer to Figure 3 One end of the plug 13 is fixedly installed with a sealing gasket 19, and the sealing gasket 19 is opposite to the output end of the infusion pipe 11. The sealing gasket 19 is made of silica gel material. The silica gel material has good softness and elasticity. The sealing gasket 19 made of silica gel material can effectively seal the output end of the infusion pipe 11.

[0028] Please refer to Figure 1 andFigure 5 The bottom end of the device platform 1 is fixedly provided with a storage box 22, the storage box 22 is fixedly provided with a DC motor 23, the output end of the DC motor 23 is fixedly connected with a lead screw 24, the lead screw 24 is threadedly connected with a sliding ring 25, the sliding ring 25 is fixedly provided with an L-shaped rod 26, the device platform 1 is provided with a sliding groove 30, one end of the L-shaped rod 26 penetrates through the inside of the sliding groove 30 and is in sliding connection with the sliding groove 30, the L-shaped rod 26 is fixedly provided with a scraper 27, one side of the scraper 27 is in contact with the plane of the device platform 1, the device platform 1 is provided with a limiting assembly, the limiting assembly is located at one side of the paint box 7, the other end of the DC motor 23 is connected with the limiting assembly, one side of the device platform 1 is provided with an opening 31, the opening 31 is located at one side of the scraper 27, when the paint dropped on the device platform 1 is cleaned, the scraper 27 is installed to facilitate the cleaning of the paint dropped on the device platform 1, first, the DC motor 23 is started to drive the lead screw 24 to rotate, the lead screw 24 drives the L-shaped rod 26 to slide in the sliding groove 30 through the sliding ring 25 when rotating, at the same time, the L-shaped rod 26 drives the scraper 27 in contact with the plane of the device platform 1 to move, so as to scrape and clean the paint dropped on the device platform 1, the scraper 27 pushes the paint to the opening 31, and the paint is discharged through the opening 31 (a collecting box is arranged below the opening 31 at the bottom end of the device platform 1, and the impurities scraped by the scraper 27 fall into the collecting box through the opening 31), the plane of the device platform 1 is cleaned regularly, so that too much paint impurities are prevented from being accumulated on the device platform 1 and being inconvenient to clean in the later period, and the cleanliness of the preparation device is further ensured.

[0029] Please refer to Figure 5 The limiting assembly includes a limiting rod 28 and a limiting sleeve 29, the limiting rod 28 is fixedly installed on the device platform 1, the limiting sleeve 29 is slidably arranged on the limiting rod 28, and one end of the limiting sleeve 29 is fixedly connected with the L-shaped rod 26, when the lead screw 24 drives the scraper 27 to move, the other end of the L-shaped rod 26 slides on the limiting rod 28 through the limiting sleeve 29, and the stability of the scraper 27 during movement is maintained through the limiting assembly.

[0030] The working principle is that the paint liquid in the paint tank 7 is automatically added by installing the feeding tank 10 and the floating ball 17, when the paint liquid in the paint tank 7 is reduced, the flow assembly is automatically opened to make the paint liquid in the feeding tank 10 transported to the paint tank 7, so that the paint liquid in the paint tank 7 is always kept on a horizontal line to facilitate the continuity of the glass fiber grid coating, when the paint liquid in the paint tank 7 rises to the flow assembly, the flow assembly is closed, and at the same time, the outlet end of the infusion pipe 11 is automatically opened by the opening and closing assembly to make the paint liquid in the storage tank 8 transported to the feeding tank 10 through the infusion pipe 11, when the paint liquid in the feeding tank 10 rises to a specified horizontal line, the opening and closing assembly seals the outlet end of the infusion pipe 11, so that the transportation of the paint liquid is cut off, the automatic adding device integrally formed automatically adds the paint liquid, without manual intervention, while ensuring that the paint liquid in the paint tank 7 is sufficient, avoiding the problems of uneven or interrupted coating of the glass fiber grid due to insufficient coating liquid, further improving the production efficiency of the preparation device for anti-cracking fibers, by installing the scraper 27, the paint dropped on the device platform 1 is conveniently cleaned, first, the DC motor 23 drives the screw rod 24 to rotate, the screw rod 24 drives the L-shaped rod 26 to slide in the sliding groove 30 through the slip ring 25 when rotating, and the L-shaped rod 26 drives the scraper 27 in contact with the plane of the device platform 1 to move, so as to scrape and clean the paint dropped on the device platform 1, the paint is pushed to the opening 31 by the scraper 27, and is discharged through the opening 31 (a collection tank is arranged below the opening 31 at the bottom end of the device platform 1, and the impurities scraped by the scraper 27 fall into the collection tank through the opening 31), by regularly cleaning the plane of the device platform 1, it is avoided that too much paint impurities are accumulated on the device platform 1 in the later period, and the cleanliness of the preparation device is further ensured.

[0031] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A device for the preparation of anti-cracking fibers for asphalt pavements, comprising a device platform (1) and two grid roll supports (2), characterized by: Two said grid roll bearing frames (2) are symmetrically arranged at the front and rear ends of the device platform (1), and a first roller group (3) and a second roller group (4) are symmetrically installed at the two ends of the device platform (1), a paint box (7) is installed on the device platform (1), and the paint box (7) is located below the first roller group (3), and a paint roller (5) is arranged in the paint box (7); A supporting plate (9) is fixedly installed on the left side of the device platform (1), a feeding tank (10) is installed on the supporting plate (9), and the feeding tank (10) is located on one side of the paint box (7), a storage tank (8) is arranged on one side of the device platform (1), a liquid delivery pipe (11) is fixedly connected to the bottom end of the storage tank (8), the output end of the liquid delivery pipe (11) penetrates into the feeding tank (10), an opening and closing assembly is arranged at the output end of the feeding tank (10) and located in the feeding tank (10), and a flow assembly is arranged on one side of the feeding tank (10) and communicates with the inside of the paint box (7) through the flow assembly.

2. The device for preparing anti-cracking fiber for asphalt pavement according to claim 1, characterized in that: The opening and closing assembly comprises a connecting sleeve (12), a plug (13), a connecting piece (14), a connecting plate (15), a connecting rod (16), a floating ball (17) and a water outlet (18), the connecting sleeve (12) is fixedly installed on the liquid delivery pipe (11), and the output end of the liquid delivery pipe (11) penetrates into the connecting sleeve (12), the plug (13) is slidably installed in the connecting sleeve (12), and the plug (13) is opposite to the liquid delivery pipe (11), the connecting piece (14) is fixedly installed on the plug (13), the connecting plate (15) is fixedly installed on the connecting sleeve (12), one end of the connecting piece (14) penetrates through the inside of the connecting sleeve (12) and is movably installed on the connecting plate (15), the connecting rod (16) is located below the connecting sleeve (12) and movably connected with the connecting piece (14), the floating ball (17) is installed at the bottom end of the connecting rod (16), and the water outlet (18) is arranged on the connecting sleeve (12) and located between the plug (13) and the intermediate part of the liquid delivery pipe (11).

3. The device for preparing anti-cracking fiber for asphalt pavement according to claim 1, characterized in that: The flow assembly comprises a water inlet groove (20) and a one-way valve plate (21), the water inlet groove (20) is arranged on one side of the feeding tank (10), and the other end of the water inlet groove (20) extends into the inside of the paint box (7), and the one-way valve plate (21) is movably installed in the water inlet groove (20).

4. The device for preparing anti-cracking fiber for asphalt pavement according to claim 2, characterized in that: One end of the plug (13) is fixedly installed with a sealing gasket (19), and the sealing gasket (19) is opposite to the output end of the liquid delivery pipe (11).

5. The device for preparing anti-cracking fiber for asphalt pavement according to claim 1, characterized in that: The bottom end of the device platform (1) is fixedly installed with a storage box (22), the storage box (22) is fixedly installed with a DC motor (23) inside, the output end of the DC motor (23) is fixedly connected with a lead screw (24), the lead screw (24) is threadedly connected with a sliding ring (25), the sliding ring (25) is fixedly installed with an L-shaped rod (26), the device platform (1) is provided with a sliding groove (30), one end of the L-shaped rod (26) penetrates through the inside of the sliding groove (30) and is in sliding connection with the sliding groove (30), the L-shaped rod (26) is fixedly installed with a scraper (27), one side of the scraper (27) is in contact with the plane of the device platform (1), the device platform (1) is provided with a limiting assembly, the limiting assembly is located on one side of the paint tank (7), the other end of the DC motor (23) is connected with the limiting assembly, one side of the device platform (1) is provided with an opening (31), and the opening (31) is located on one side of the scraper (27).

6. The device for preparing anti-cracking fiber for asphalt pavement according to claim 5, characterized in that: The limiting assembly comprises a limiting rod (28) and a limiting sleeve (29), the limiting rod (28) is fixedly installed on the device platform (1), and the limiting sleeve (29) is slidably arranged on the limiting rod (28) and fixedly connected with one end of the L-shaped rod (26).

7. The device for preparing anti-cracking fiber for asphalt pavement according to claim 1, characterized in that: The device platform (1) is fixedly installed with a drying device (6), and the drying device (6) is located at the middle part of the device platform (1).

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