An apparatus for adding a concrete anti-cracking fiber

Abstract

The utility model relates to concrete technical field discloses a kind of adding device of concrete anti-cracking fiber, comprising: conveying structure, blowing structure, baffle extraction structure and cutting knife.The utility model has the following advantages and effects: by being provided with conveying structure, blowing structure, baffle extraction structure and cutting knife, conveying structure can avoid personnel contact to anti-cracking fiber, can automatically bagged anti-cracking fiber is conveyed to the working area of cutting knife and is cut bag, and it is realized that anti-cracking fiber is conveyed to the position mixed with concrete raw material with blowing structure cooperation, realizes that anti-cracking fiber in bag is fully blown out, subsequent personnel only need to take out bag by the opening of baffle extraction structure, which can reduce the direct contact between personnel and anti-cracking fiber, avoid traditional operation mode to cause personnel skin injury by anti-cracking fiber drifting in air.

Description

Technical Field

[0001] This utility model relates to the field of concrete technology, and in particular to a device for adding concrete crack-resistant fibers. Background Technology

[0002] Adding crack-resistant fibers to concrete is primarily to effectively control microcracks caused by plastic shrinkage, drying shrinkage, and temperature changes, thereby improving the durability and safety of the concrete. The common dosage of polypropylene fibers is generally 0.6 kg to 1.8 kg per cubic meter of concrete, with 0.9 kg / m³ being a commonly recommended value. The fibers should be added after the dry materials (sand, aggregate, cement) are added and before water is added, with a suitable extension of the mixing time by 30-60 seconds to ensure uniform dispersion of the fibers and prevent clumping.

[0003] The traditional method of adding crack-resistant fibers involves manually cutting the bagged fibers with a cutter and adding them to the concrete. Because the crack-resistant fibers are quite thin, when doing this manually, the fibers can scatter in the air and come into contact with people, causing skin damage. Utility Model Content

[0004] The purpose of this invention is to provide a device for adding anti-cracking fibers to concrete, which can solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a concrete crack-resistant fiber adding device, comprising: a conveying structure, a blowing structure, a baffle removal structure, and a cutting blade, wherein the conveying structure includes an L-shaped feed pipe disposed at the top of one set of feed inlets of a concrete mixing equipment, the blowing structure is disposed on one side inside the L-shaped feed pipe, the baffle removal structure is disposed on the outer wall of the L-shaped feed pipe, and the cutting blade is disposed inside the L-shaped feed pipe.

[0006] Preferably, the conveying structure further includes a push block horizontally slidably disposed on one side of the inside of the L-shaped feed pipe. A first connecting block is disposed on one side of the outer wall of the L-shaped feed pipe, and a second connecting block is disposed on the outer wall of the push block. The first connecting block and the second connecting block have the same shape. The first connecting block and the second connecting block are composed of a U-shaped block and an installation block internally connected by a shaft. Electric push rods are respectively disposed on the outer walls of the installation blocks of the first connecting block and the second connecting block. Positioning blocks are disposed at both ends of the outer wall of the L-shaped feed pipe. The positioning blocks have sliding holes inside. A guide rod is horizontally slidably disposed inside the sliding holes of the positioning blocks. One end of the guide rod is welded to the outer wall of the push block. An outlet is disposed on the other side of the inner wall of the L-shaped feed pipe. The outlet is disposed directly above one of the feed inlets of the concrete mixing equipment. Several sets of cutting blades are equidistantly disposed on the inner wall of the outlet.

[0007] Preferably, the blowing structure includes an air inlet hole on the upper outer wall of one side of the inner wall of the L-shaped feed pipe. A fan is installed on the inner wall of the air inlet hole. The fan consists of a frame, a motor installed inside the frame, and blades rotatably connected to the motor output end via a shaft. Filter plates are spaced above the fan and are installed on the inner wall of the air inlet hole. A bearing is installed in the center of the filter plate, and a connecting shaft is installed inside the bearing. The bottom end of the connecting shaft is connected to the shaft of the fan, and the top end of the connecting shaft is connected to a cleaning brush. The brush surface of the cleaning brush is in contact with the surface of the filter plate.

[0008] Preferably, the baffle removal structure includes a first shaft disposed on the other side of the outer wall of the L-shaped feed tube, a baffle body rotatably disposed on the first shaft, an outlet opened on the other side of the outer wall of the L-shaped feed tube, the baffle body disposed outside the outlet, a second shaft disposed on the outer wall of the top end of one side of the L-shaped feed tube, a limit plate rotatably disposed on the second shaft, and the baffle body disposed between the limit plate and the outer wall of the L-shaped feed tube.

[0009] The beneficial effects of this utility model are as follows: By setting up a conveying structure, a blowing structure, a baffle removal structure, and a cutting blade, the conveying structure can automatically transport the bagged anti-crack fibers to the working area of ​​the cutting blade for cutting by avoiding personnel contact with the anti-crack fibers. In conjunction with the blowing structure, the anti-crack fibers are transported to the position where they are mixed with the concrete raw materials, and the anti-crack fibers in the bag are fully blown out. Subsequently, personnel only need to open the baffle removal structure to remove the bag. This method can reduce personnel's direct contact with the anti-crack fibers and avoid the skin damage caused by the anti-crack fibers floating in the air due to traditional operation methods. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0012] Figure 2 This is a three-dimensional structural diagram of the conveying structure, blowing structure, and baffle removal structure of this utility model;

[0013] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0014] In the picture,

[0015] 1. Conveying structure; 101. L-shaped feed pipe; 102. Push block; 103. First connecting block; 104. Second connecting block; 105. Electric push rod; 106. Positioning block; 107. Guide rod; 108. Discharge port;

[0016] 2. Blowing structure; 201. Air inlet; 202. Fan; 203. Filter plate; 204. Connecting shaft; 205. Cleaning brush;

[0017] 3. Baffle removal structure; 301. Shaft No. 1; 302. Baffle body; 303. Shaft No. 2; 304. Limiting plate; 305. Removal outlet;

[0018] 4. Cutting knife. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example 1

[0021] Reference Figures 1-3 A device for adding concrete crack-resistant fibers includes: a conveying structure 1, a blowing structure 2, a baffle removal structure 3, and a cutting blade 4.

[0022] The conveying structure 1 includes an L-shaped feed pipe 101 installed at the top of one of the feed inlets of the concrete mixing equipment, a blowing structure 2 installed inside one side of the L-shaped feed pipe 101, a baffle removal structure 3 installed on the outer wall of the L-shaped feed pipe 101, and a cutting blade 4 installed inside the L-shaped feed pipe 101.

[0023] The conveying structure 1 allows personnel to stack bags of crack-resistant fibers sequentially. The conveying structure 1 can automatically provide horizontal displacement of the bags of crack-resistant fibers. When the bags of crack-resistant fibers are pushed by the conveying structure 1, they come into contact with the cutting blade 4. The cutting blade 4 can cut the bags of crack-resistant fibers. The blowing structure 2 blows the crack-resistant fibers out of the bags into the feed inlet of the concrete raw material mixing equipment. At this time, the baffle removal structure 3 can be opened to remove the remaining bags. This method can reduce personnel's direct contact with the crack-resistant fibers inside the bags.

[0024] Example 2

[0025] Reference Figures 1-3 A device for adding concrete crack-resistant fibers, comprising: a conveying structure 1;

[0026] The conveying structure 1 also includes a pusher block 102 that is horizontally slidably disposed on one side inside the L-shaped feed pipe 101. A first connecting block 103 is disposed on one side of the outer wall of the L-shaped feed pipe 101, and a second connecting block 104 is disposed on the outer wall of the pusher block 102. The first connecting block 103 and the second connecting block 104 have the same shape. The first connecting block 103 and the second connecting block 104 are composed of a U-shaped block and an internal mounting block that is rotatably connected by a shaft. The two ends are respectively disposed on the outside of the mounting blocks of the first connecting block 103 and the second connecting block 104. The electric push rod 105 on the wall is positioned at both ends of the positioning block 106 on the outer wall of the L-shaped feed pipe 101. The positioning block 106 has a sliding hole inside. A guide rod 107 is horizontally slidably arranged inside the sliding hole of the positioning block 106. One end of the guide rod 107 is welded to the outer wall of the push block 102. The other side of the inner wall of the L-shaped feed pipe 101 has a discharge port 108. The discharge port 108 is located directly above one of the feed ports of the concrete mixing equipment. Several sets of cutting blades 4 are equidistantly arranged on the inner wall of the discharge port 108.

[0027] The anti-crack fiber bags are stacked and placed inside the vertical tube of the L-shaped feed pipe 101. At this time, the electric push rod 105 between the first connecting block 103 and the second connecting block 104 is activated. The electric push rod 105 can drive the push block 102 to move horizontally inside the L-shaped feed pipe 101 through its own contraction. This allows the push block 102 to push the bottom anti-crack fiber bag in the stack to move. During the displacement process, the push block 102 can move horizontally stably inside the positioning block 106 through the guide rod 107. When the anti-crack fiber bag moves to the discharge port 108, the anti-crack fiber bag is cut by the cutting blade 4 during the displacement process, thereby achieving the rupture of the bag.

[0028] Example 3

[0029] Reference Figures 1-3 A device for adding concrete crack-resistant fibers, comprising: a blowing structure 2;

[0030] The blowing structure 2 includes an air inlet 201 on the upper outer wall of one side of the inner wall of the L-shaped feed pipe 101. A fan 202 is installed on the inner wall of the air inlet 201. The fan 202 consists of a frame, a motor installed inside the frame, and blades that are rotatably connected to the output end of the motor via a shaft. Filter plates 203 are spaced above the fan 202. The filter plates 203 are installed on the inner wall of the air inlet 201. A bearing is installed in the middle of the filter plate 203. A connecting shaft 204 is installed inside the bearing of the filter plate 203. The bottom end of the connecting shaft 204 is connected to the shaft of the fan 202. The top end of the connecting shaft 204 is connected to a cleaning brush 205. The brush surface of the cleaning brush 205 is in contact with the surface of the filter plate 203.

[0031] When the fan 202 inside the air inlet 201 is activated, the fan 202 can draw in outside air and deliver it into the air inlet 201. This causes the anti-crack fibers inside the bag to be affected by the wind force, thereby transporting the anti-crack fibers. The air can be filtered by the filter plate 203 to prevent external impurities from entering the interior of the air inlet 201. When the fan 202 is operating, it can drive the cleaning brush 205 on the connecting shaft 204 to rotate synchronously and continuously. This causes the cleaning brush 205 to adhere to the filter plate 203 and rotate, thereby cleaning the impurities accumulated on the filter plate 203 and preventing obstruction of airflow.

[0032] Example 4

[0033] Reference Figures 1-3 A device for adding concrete crack-resistant fibers, comprising: a baffle removal structure 3;

[0034] The baffle removal structure 3 includes a first shaft 301 disposed on the other side of the outer wall of the L-shaped feed pipe 101, a baffle body 302 rotatably disposed on the first shaft 301, an outlet 305 opened on the other side of the outer wall of the L-shaped feed pipe 101, the baffle body 302 disposed outside the outlet 305, a second shaft 303 disposed on the outer wall of the top end of one side of the L-shaped feed pipe 101, a limit plate 304 rotatably disposed on the second shaft 303, and the baffle body 302 disposed between the limit plate 304 and the outer wall of the L-shaped feed pipe 101.

[0035] When the anti-crack fibers inside the bag are blown out by the air, the limiting plate 304 on the second shaft 303 is rotated. When the limiting plate 304 no longer limits the baffle body 302, the baffle body 302 can be opened by rotating the first shaft 301, so that the baffle body 302 no longer closes the outlet 305, and the personnel can take out the bag from the cutting knife 4 through the outlet 305.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for adding anti-cracking fibers to concrete, characterized in that, include: The conveying structure (1) includes an L-shaped feed pipe (101) disposed at the top of one set of feed inlets of the concrete mixing equipment. A blowing structure (2) is provided on one side inside the L-shaped feed pipe (101); Baffle removal structure (3) is provided on the outer wall of L-shaped feed pipe (101); A cutting blade (4) is disposed inside an L-shaped feed tube (101).

2. The device for adding concrete crack-resistant fibers according to claim 1, characterized in that: The conveying structure (1) further includes a pusher (102) that is horizontally slidably disposed on one side inside the L-shaped feed pipe (101), a first connecting block (103) is disposed on one side of the outer wall of the L-shaped feed pipe (101), and a second connecting block (104) is disposed on the outer wall of the pusher (102).

3. The device for adding concrete crack-resistant fibers according to claim 2, characterized in that: The first connecting block (103) and the second connecting block (104) have the same shape. The first connecting block (103) and the second connecting block (104) are composed of a U-shaped block and an internal mounting block that is rotatably connected by a shaft.

4. The device for adding concrete crack-resistant fibers according to claim 2, characterized in that: The conveying structure (1) also includes an electric push rod (105) with its two ends respectively set on the outer wall of the mounting block of the first connecting block (103) and the second connecting block (104).

5. The device for adding concrete crack-resistant fibers according to claim 4, characterized in that: The conveying structure (1) also includes positioning blocks (106) at both ends of the outer wall of the L-shaped feed pipe (101). The positioning blocks (106) have sliding holes inside. A guide rod (107) is horizontally slidably arranged inside the sliding holes of the positioning blocks (106). One end of the guide rod (107) is welded to the outer wall of the push block (102). An outlet (108) is opened on the other side of the inner wall of the L-shaped feed pipe (101). The outlet (108) is located directly above one of the feed inlets of the concrete mixing equipment. Several sets of cutting blades (4) are equidistantly arranged on the inner wall of the outlet (108).

6. The device for adding concrete crack-resistant fibers according to claim 1, characterized in that: The blowing structure (2) includes an air inlet (201) on the outer wall above one side of the inner wall of the L-shaped feed pipe (101). A fan (202) is provided on the inner wall of the air inlet (201). The fan (202) consists of a frame, a motor installed inside the frame, and blades that are rotatably connected to the output end of the motor via a shaft.

7. The device for adding concrete crack-resistant fibers according to claim 6, characterized in that: The blowing structure (2) also includes filter plates (203) spaced above the blower (202). The filter plates (203) are disposed on the inner wall of the air inlet (201). A bearing is disposed in the middle of the filter plate (203). A connecting shaft (204) is disposed inside the bearing of the filter plate (203). The bottom end of the connecting shaft (204) is connected to the shaft of the blower (202). The top end of the connecting shaft (204) is connected to the cleaning brush (205). The brush surface of the cleaning brush (205) is in contact with the surface of the filter plate (203).

8. The device for adding concrete crack-resistant fibers according to claim 1, characterized in that: The baffle removal structure (3) includes a first shaft (301) set on the other side of the outer wall of the L-shaped feed pipe (101), and a baffle body (302) is rotatably mounted on the first shaft (301).

9. The device for adding concrete crack-resistant fibers according to claim 8, characterized in that: The baffle removal structure (3) also includes an outlet (305) opened on the other side of the outer wall of the L-shaped feed pipe (101), and the baffle body (302) is located outside the outlet (305).

10. The device for adding concrete crack-resistant fibers according to claim 9, characterized in that: The baffle removal structure (3) also includes a second shaft (303) set on the outer wall of the top end of the L-shaped feed pipe (101) on one side. A limiting plate (304) is rotatably set on the second shaft (303), and the baffle body (302) is set between the limiting plate (304) and the outer wall of the L-shaped feed pipe (101).

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