A steel drill rod production line

Abstract

The utility model provides a kind of steel drill production line, including line hanging mechanism, tensioning mechanism, flattening mechanism, gluing mechanism, drying mechanism, cooling mechanism, forming cutting mechanism in turn, cold-drawn steel wire passes above-mentioned mechanism in turn, cold-drawn steel wire can be collected together by first wire bundle gathering unit, second wire bundle gathering unit, subsequently by tensioning unit, cold-drawn steel wire bundle can be tensioned, again by multiple flattening unit, cold-drawn steel wire bundle is rolled to flat, glue is injected into line row upper side at uniform speed by glue injection pipe, glue is evenly extruded and applied on line row by two second roller on gluing unit, line row that comes out of gluing unit enters drying pipe, again after cooling mechanism cooling and drying, subsequently by each group of pressure roller unit in forming cutting mechanism rolling and flattening, finally, it is pressed into shape and cut at two forming cutting wheels.The utility model efficiently connects between each process, greatly improves the processing efficiency of steel drill.

Description

Technical Field

[0001] This utility model belongs to the field of steel fiber production technology, and in particular relates to a steel fiber production line. Background Technology

[0002] With the widespread development of the construction industry worldwide, the requirements for building quality are becoming increasingly stringent. In order to improve the overall performance of concrete, steel fibers are often added to concrete in construction projects both domestically and internationally. This is to improve the tensile, shear, bending, abrasion, and crack resistance of ordinary concrete, thereby enhancing its overall performance.

[0003] Currently, the steel fibers commonly used in concrete projects include several types such as cut steel wire, sheared steel strip, milled steel ingot, and stainless steel melt-drawn type. Among them, cut steel wire type has the highest strength. It uses steel wire as raw material and has the characteristics of high strength, wear resistance, impact resistance, corrosion resistance, and good tensile properties. It is the future development and application trend of steel fibers.

[0004] Currently, the production of existing steel fiber requires multiple coordinated processes. The existing steel fiber production process lacks a complete production line, resulting in a disorganized manufacturing process, low efficiency, and high production costs. Therefore, solving these technical problems is a pressing issue that the industry urgently needs to address. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a steel fiber production line.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A steel fiber production line includes a wire hanging mechanism, a tensioning mechanism, a flattening mechanism, a gluing mechanism, a drying mechanism, a cooling mechanism, and a forming and cutting mechanism arranged in sequence, through which the steel fibers pass in sequence; The wire hanging mechanism includes a wire reel frame, on which multiple winding reels are rotatably mounted. Steel fibers are wound on the winding reels. A first wire bundle gathering unit is installed at the end of the wire reel frame, and the steel fibers pass through the first wire bundle gathering unit. The tensioning mechanism includes a second wire harness gathering unit and multiple tensioning units. The second wire harness gathering unit has the same structure as the first wire harness gathering unit. Each tensioning unit includes a pressure roller. Each pressure roller has a vertical plate at both ends. The vertical plate has a rectangular hole. A fixed shaft is rotatably connected inside the pressure roller. Both ends of the fixed shaft are fixed at the rectangular hole. The flattening mechanism includes multiple flattening units. Each flattening unit includes an upper support and a lower support. Multiple first rollers are installed on the side of the upper support and the lower support that are close to each other. First rollers are installed on the outside of the first rollers. The first rollers on the upper support and the first rollers on the lower support are arranged alternately. The glue application mechanism includes a side limiting unit, a glue injection tube, and at least one glue application unit. The side limiting unit includes two vertically arranged limiting guide rollers, and multiple steel fibers form a line array between the two limiting guide rollers. The glue injection tube is located between the side limiting unit and the glue application unit. The glue application unit includes two second roller shafts, and second rollers are installed on the outside of the second roller shafts. The drying mechanism includes multiple flat drying tubes, and the cable passes through the interior of the drying tubes; The cooling mechanism includes a fan and a cooling unit, with the fan's outlet facing the cable tray; The forming and cutting mechanism includes multiple sets of pressure roller units and one forming and cutting unit. The pressure roller unit includes two flattening rollers, and the other end of the roller shaft of the two flattening rollers is connected to a power unit. The two flattening rollers rotate in opposite directions with the same linear speed. The wire bar passes between the two flattening rollers. When the two flattening rollers rotate in opposite directions, they pull the wire bar to move. The forming and cutting unit includes two forming and cutting wheels. One of the forming and cutting wheels has multiple grooves distributed circumferentially on its outer side, and the other forming and cutting wheel has multiple protrusions distributed circumferentially on its outer side. The protrusions are adapted to the grooves and correspond one-to-one. A cutter is provided at the center of the outer end face of the protrusion. A tangent groove is provided at the center of the concave bottom surface of the groove. The tangent groove is adapted to the cutter.

[0007] As a preferred embodiment, the side limiting unit further includes two fixing plates, with a U-shaped bracket fixed between the two fixing plates. The opening of the U-shaped bracket faces upward, and two limiting guide rollers are installed at the bottom of the U-shaped bracket.

[0008] As a preferred embodiment, both ends of the second roller shaft are provided with U-shaped frames. A lower slide plate and an upper slide plate are slidably inserted inside the U-shaped frame. A cover plate is installed on the top of the U-shaped frame. The two second roller shafts are respectively installed on the lower slide plate and the upper slide plate. A second hand-tightening bolt is threadedly connected to the cover plate. The second hand-tightening bolt passes through the cover plate, and the lower end of the second hand-tightening bolt is rotatably connected to the upper slide plate.

[0009] As a preferred embodiment, the first wire harness gathering unit includes two horizontal rollers and two vertical rollers, the horizontal rollers being perpendicular to the vertical rollers, and the steel fiber passing through the gap between the two vertical rollers and the two horizontal rollers.

[0010] As a preferred embodiment, the upper support and the lower support are connected by a first hand-tightened bolt.

[0011] As a preferred embodiment, the cooling unit is provided with guide rollers and multiple cold air outlets.

[0012] As a preferred embodiment, a scraper is provided on the outer side of the flattening roller, and the end of the scraper abuts against the flattening roller.

[0013] As a preferred embodiment, the front end of the forming and cutting mechanism is provided with an upper pressure roller and a lower pressure roller, and the wire bar is located between the upper pressure roller and the lower pressure roller.

[0014] As a preferred embodiment, a discharge hopper is provided on the rear side of the forming and cutting wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes the power provided by the pressure roller units in the forming and cutting mechanism to move the cold-drawn steel wire. The cold-drawn steel wire passes through a first wire harness gathering unit and a second wire harness gathering unit, where all the cold-drawn steel wires are collected together to form a large bundle. Then, it passes through multiple tensioning units, which tension the bundle and initially disperse and flatten it. Next, it enters multiple flattening units, where multiple first rollers in these units flatten the bundle into a flat layer, with each cold-drawn steel wire arranged side-by-side. This facilitates subsequent glue application. Glue is injected evenly onto the wire bundle through an injection pipe, and two second rollers in the glue application unit evenly press and apply the glue onto the wire bundle. The wire bundle exiting the glue application unit enters a drying pipe, where the glue is quickly dried. It is then cooled and blown dry by a cooling mechanism, promoting rapid glue solidification. Subsequently, the product is pressed and flattened by the various pressure roller units in the forming and cutting mechanism, and finally pressed and cut at the two forming and cutting wheels. The formed product is discharged from the discharge hopper. The efficient connection between the various processes in this utility model greatly improves the processing efficiency of steel wire and also reduces production costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the steel fiber production line of this utility model; Figure 2 This is a schematic diagram of the wire hanging mechanism in the steel fiber production line of this utility model; Figure 3 This is a schematic diagram of the tensioning mechanism in the steel fiber production line of this utility model; Figure 4 This is a schematic diagram of the flattening mechanism in the steel fiber production line of this utility model; Figure 5This is a schematic diagram of the adhesive coating mechanism in the steel fiber production line of this utility model; Figure 6 This is a schematic diagram of the drying mechanism in the steel fiber production line of this utility model; Figure 7 This is a schematic diagram of the structure of the first wire harness gathering unit in the steel fiber production line of this utility model; Figure 8 This is a schematic diagram of the tensioning unit in the steel fiber production line of this utility model; Figure 9 This is a schematic diagram of the flattening unit in the steel fiber production line of this utility model; Figure 10 This is a front view of the side limiting unit in the steel fiber production line of this utility model; Figure 11 This is a side view of the adhesive coating unit in the steel fiber production line of this utility model; Figure 12 This is a schematic diagram of the forming and cutting mechanism in the steel fiber production line of this utility model; Figure 13 This is a schematic diagram of the cross-sectional structure of the forming cutting wheel in the steel fiber production line of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Wire wheel frame; 2. Winding wheel; 3. First wire harness gathering unit; 301. Horizontal roller; 302. Vertical roller; 4. Second wire harness gathering unit; 5. Tensioning unit; 501. Vertical plate; 502. Fixed shaft; 503. Pressure roller; 504. Rectangular hole; 505. Nut; 6. Flattening unit; 61. Upper support; 62. Lower support; 63. First roller shaft; 64. First hand-tightening bolt; 7. Side limiting unit; 701. Fixed plate; 702. U-shaped support; 703. Limiting guide roller; 8. Forming and cutting mechanism. 801. Upper pressure roller; 802. Lower pressure roller; 803. Flattening roller; 804. Scraper; 805. Limiting block; 806. Forming and cutting wheel; 807. Discharge hopper; 808. Protrusion; 809. Groove; 9. Glue application unit; 91. U-shaped frame; 92. Cover plate; 93. Second hand-tightening bolt; 94. Upper sliding plate; 95. Lower sliding plate; 96. Second roller shaft; 10. Glue injection pipe; 11. Drying mechanism; 12. Drying pipe; 13. Fan; 14. Cooling unit; 15. Guide roller; 16. Linear assembly. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0020] Please see Figures 1 to 13 As shown in the figure, this utility model embodiment provides a steel wire production line, including a wire hanging mechanism, a tensioning mechanism, a flattening mechanism, a glue coating mechanism, a drying mechanism 11, a cooling mechanism, and a forming and cutting mechanism 8 arranged in sequence. Cold-drawn steel wire passes through the above mechanisms in sequence. The specific structure and function of the wire hanging mechanism, tensioning mechanism, flattening mechanism, glue coating mechanism, drying mechanism 11, cooling mechanism, and forming and cutting mechanism 8 are described in the following technical description.

[0021] Please see Figures 1 to 13 As shown, the wire-hanging mechanism specifically includes a wire reel frame 1, on which multiple winding reels 2 are rotatably mounted. Steel wire is wound on each winding reel 2. A first wire harness gathering unit 3 is installed at the end of the wire reel frame 1, through which the cold-drawn steel wire passes. The multiple winding reels 2 can be arranged in two rows, with one wire pulled from each reel 2 and passed through the first wire harness gathering unit 3. Simultaneously, multiple winding reels 2 can be symmetrically installed on the other side of the wire reel frame 1 to meet production needs. The first wire harness gathering unit 3 includes two horizontal rollers 301 and two vertical rollers 302. The horizontal rollers 301 and vertical rollers 302 are perpendicular, thus providing lateral and vertical limiting and gathering multiple cold-drawn steel wires. The cold-drawn steel wire passes through the gap between the two vertical rollers 302 and the two horizontal rollers 301.

[0022] Please see Figures 1 to 13As shown, the tensioning mechanism specifically includes a second wire harness gathering unit 4 and multiple tensioning units 5. The second wire harness gathering unit 4 has the same structure as the first wire harness gathering unit 3. The cold-drawn steel wires that have passed through the first wire harness gathering unit 3 in the wire hanging mechanism enter the second wire harness gathering unit 4, thereby collecting all the cold-drawn steel wires together to form a large bundle of cold-drawn steel wires. The tensioning unit 5 includes a pressure roller 503. Both ends of the pressure roller 503 are provided with vertical plates 501. The vertical plates 501 are provided with rectangular holes 504. A fixed shaft 502 is rotatably connected inside the pressure roller 503. The two ends of the fixed shaft 502 are fixed at the rectangular holes 504. Specifically, the two ends of the fixed shaft 502 pass through the rectangular holes 504 and are fixed by nuts 505. The rectangular holes 504 facilitate the adjustment of the height of the fixed shaft 502 and the pressure roller 503. The pressure rollers 503 in the multiple tensioning units 5 are arranged in a staggered manner, meaning the cold-drawn steel wire bundle passes over the upper side of the previous pressure roller 503 and the lower side of the next pressure roller, thus alternating. Furthermore, elastic support rods can be installed within the rectangular holes 504. In this embodiment, no nuts 505 are required for fixing. The elastic support rods are connected to the fixed shaft 502 and push the fixed shaft 502 to opposite sides. The elastic support rods in two adjacent tensioning units 5 face opposite directions. The tensioning mechanism can tension the cold-drawn steel wire bundle.

[0023] Please see Figures 1 to 13 As shown, the flattening mechanism includes multiple flattening units 6. Each flattening unit 6 includes an upper support 61 and a lower support 62. Multiple first rollers 63 are installed on the sides of the upper support 61 and the lower support 62 that are close to each other. First rollers are installed on the outside of the first rollers 63. The first rollers on the upper support 61 and the first rollers on the lower support 62 are arranged alternately. The cold-drawn steel wire bundle is flattened into a single layer by the multiple first rollers, that is, the cold-drawn steel wires are arranged side by side, which facilitates the subsequent glue application process. A first hand-tightening bolt 64 connects the upper support 61 and the lower support 62. The distance between the upper support 61 and the lower support 62 is adjusted by adjusting the first hand-tightening bolt 64, thereby adjusting the pressure between the upper first roller and the bottom first roller.

[0024] Please see Figures 1 to 13As shown, the adhesive coating mechanism includes a side limiting unit 7, an adhesive injection tube 10, and at least one adhesive coating unit 9. The side limiting unit 7 includes two vertically arranged limiting guide rollers 703 and two fixing plates 701. A U-shaped bracket 702 is fixed between the two fixing plates 701, with the opening of the U-shaped bracket 702 facing upwards. The two limiting guide rollers 703 are installed at the bottom of the U-shaped bracket 702. The two limiting guide rollers 703 limit the sides of the cold-drawn steel wires processed in the previous process to prevent gaps between the cold-drawn steel wires. Combined with the pulling action of the forming and cutting mechanism 8 in the subsequent process, the overall position and orientation of the cold-drawn steel wires in the adhesive coating mechanism can be maintained. Multiple cold-drawn steel wires form a wire array 16 between the two limiting guide rollers 703. The glue injection tube 10 is located between the side limiting unit 7 and the glue application unit 9, and is used to inject glue at a constant speed onto the upper side of the busbar 16 (currently, the glue used on the busbar 16 is water-soluble glue).

[0025] Please see Figures 1 to 13 As shown, the glue application unit 9 includes two second roller shafts 96, with second rollers mounted on the outside of each second roller shaft 96. U-shaped frames 91 are provided at both ends of each second roller shaft 96. A lower slide plate 95 and an upper slide plate 94 are slidably inserted into the interior of each U-shaped frame 91. A cover plate 92 is mounted on the top of the U-shaped frame 91. The two second roller shafts 96 are respectively mounted on the lower slide plate 95 and the upper slide plate 94. A second hand-tightening bolt 93 is threaded onto the cover plate 92, penetrating through it. The lower end of the second hand-tightening bolt 93 is rotatably connected to the upper slide plate 94. Specifically, in this embodiment, the position of the upper slide plate 94 is adjusted by rotating the second hand-tightening bolts 93 on both sides of the second roller, thereby adjusting the gap between the two second rollers and the pressure of the second rollers on the wire assembly 16. After the glue injection tube 10 injects glue onto the upper side of the wire assembly 16, when the wire assembly 16 moves to the glue application unit 9, the glue is evenly squeezed and applied onto the wire assembly 16 by the two second rollers. The outer side of the second roller is made of a soft, absorbent material that can absorb glue, thus achieving a uniform coating effect and absorbing excess glue.

[0026] Please see Figures 1 to 13 As shown, the drying mechanism 11 includes multiple flat drying tubes 12, with wire strips 16 passing through the interior of the drying tubes 12. The wire strips 16 exiting the glue application unit 9 enter the drying tubes 12, where the glue is rapidly dried. The cooling mechanism includes a fan 13 and a cooling unit 14. The air outlet of the fan 13 faces the wire strips 16. The cooling unit 14 is equipped with guide rollers 15 and multiple cold air outlets, which also face the wire strips 16, used to cool the glue on the outside of the wire strips 16, promoting rapid solidification. The guide rollers 15 provide guidance and support for the wire strips 16.

[0027] Please see Figures 1 to 13As shown, the forming and cutting mechanism 8 includes multiple sets of pressure roller units and one set of forming and cutting units. Each pressure roller unit includes two flattening rollers 803. The other end of the roller shafts of the two flattening rollers 803 is connected to a power unit, and the two flattening rollers 803 rotate at the same linear speed in opposite directions (two meshing gears of the same specification can be fitted onto the other end of the roller shafts of the two flattening rollers 803, with the motor output connected to one of the roller shaft ends). The wire strip 16 passes between the two flattening rollers 803. The multiple sets of pressure roller units provide power for the movement of the cold-drawn steel wire. When the two flattening rollers 803 in each set of pressure roller units rotate in opposite directions, they pull the wire strip 16 to move. Simultaneously, the pressure roller units can further flatten the wire strip 16. A scraper 804 is provided on the outer side of the flattening roller 803. The end of the scraper 804 abuts against the flattening roller 803, and the scraper 804 can scrape off the solidified adhesive particles adhering to the outside of the flattening roller 803. The forming and cutting mechanism 8 has an upper pressure roller 801 and a lower pressure roller 802 at its front end. The wire strip 16 is located between the upper pressure roller 801 and the lower pressure roller 802, which can limit the height of the wire strip 16 and also serve as a guide and support. Each pressure roller unit has a limit block 805 at its rear side. The limit block 805 is used to limit the left and right position of the wire strip 16 to prevent it from deviating.

[0028] Please see Figures 1 to 13 As shown, the forming and cutting unit includes two forming and cutting wheels 806. One forming and cutting wheel 806 has multiple grooves 809 distributed circumferentially on its outer side, and the other forming and cutting wheel 806 has multiple protrusions 808 distributed circumferentially on its outer side. The protrusions 808 are adapted to the grooves 809 and engage one-to-one with each other when the two forming and cutting wheels 806 rotate, thereby achieving the pressing and forming of the product. A cutter is provided at the center of the outer end face of the protrusion 808, and a tangent groove is provided at the center of the concave bottom surface of the groove 809. The tangent groove is adapted to the cutter, thereby achieving the segmentation and cutting of the pressed and formed product. A discharge hopper 807 is provided at the rear side of the forming and cutting wheel 806, and the segmented product is discharged from the discharge hopper 807.

[0029] The specific working process of this utility model is as follows: the steel wires on each winding wheel 2 are pulled out and pass through the tensioning mechanism, flattening mechanism, gluing mechanism, drying mechanism 11, cooling mechanism, and forming and cutting mechanism 8 in sequence. The cold-drawn steel wires are moved by the power provided by each group of pressure roller units in the forming and cutting mechanism 8. The cold-drawn steel wires are collected together by the first wire harness gathering unit 3 and the second wire harness gathering unit 4 to form a large bundle of cold-drawn steel wires. Then, they pass through multiple tensioning units 5, which can tension the bundle of cold-drawn steel wires and initially disperse and lay them flat. Then, they enter multiple flattening units 6, where multiple first rollers in the flattening units 6 roll the bundle of cold-drawn steel wires into a flat layer, that is, the cold-drawn steel wires are arranged side by side, which facilitates the subsequent glue application process. Glue is injected evenly onto the upper side of the wire strip 16 through the glue injection tube 10. The glue is evenly squeezed and applied onto the wire strip 16 by the two second rollers on the glue application unit 9. The wire strip 16 exiting the glue application unit 9 enters the drying tube 12, where the glue is quickly dried. Then, it is cooled and blown dry by the cooling mechanism, thereby promoting the rapid solidification of the glue. Subsequently, the product is pressed and flattened by each set of pressure rollers in the forming and cutting mechanism 8, and finally pressed and cut at the two forming and cutting rollers 806. The formed product is discharged from the discharge hopper 807.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] 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 steel fiber production line, characterized in that: The steel fiber passes through the above mechanisms in sequence, including a wire hanging mechanism, a tensioning mechanism, a flattening mechanism, a glue coating mechanism, a drying mechanism (11), a cooling mechanism, and a forming and cutting mechanism (8). The hanging mechanism includes a wire wheel frame (1), on which multiple winding wheels (2) are rotatably mounted. Steel fibers are wound on the winding wheels (2). A first wire bundle gathering unit (3) is installed at the end of the wire wheel frame (1), and the steel fibers pass through the first wire bundle gathering unit (3). The tensioning mechanism includes a second wire harness gathering unit (4) and multiple tensioning units (5). The second wire harness gathering unit (4) has the same structure as the first wire harness gathering unit (3). The tensioning unit (5) includes a pressure roller (503). Both ends of the pressure roller (503) are provided with upright plates (501). The upright plates (501) are provided with rectangular holes (504). The inside of the pressure roller (503) is rotatably connected to a fixed shaft (502). Both ends of the fixed shaft (502) are fixed at the rectangular holes (504). The flattening mechanism includes multiple flattening units (6), each flattening unit (6) includes an upper support (61) and a lower support (62). Multiple first rollers (63) are installed on the side of the upper support (61) and the lower support (62) that are close to each other. First rollers are installed on the outside of the first rollers (63). The first rollers on the upper support (61) and the first rollers on the lower support (62) are arranged alternately. The glue application mechanism includes a side limiting unit (7), a glue injection tube (10), and at least one glue application unit (9). The side limiting unit (7) includes two vertically arranged limiting guide rollers (703), and multiple steel fibers form a line array (16) between the two limiting guide rollers (703). The glue injection tube (10) is located between the side limiting unit (7) and the glue application unit (9). The glue application unit (9) includes two second roller shafts (96), and second rollers are installed on the outside of the second roller shafts (96). The drying mechanism (11) includes a plurality of flat drying tubes (12), and the wire strip (16) passes through the interior of the drying tubes (12); The cooling mechanism includes a fan (13) and a cooling unit (14), with the air outlet of the fan (13) facing the cable tray (16). The forming and cutting mechanism (8) includes multiple sets of pressure roller units and one set of forming and cutting units. The pressure roller unit includes two flattening rollers (803). The other end of the roller shaft of the two flattening rollers (803) is connected to a power unit, and the two flattening rollers (803) rotate in opposite directions at the same linear speed. The wire strip (16) passes between the two flattening rollers (803). When the two flattening rollers (803) rotate in opposite directions, they pull the wire strip (16) to move. The forming and cutting unit includes two forming... The cutting wheel (806) has multiple grooves (809) distributed circumferentially on the outer side of one of the forming cutting wheels (806), and multiple protrusions (808) distributed circumferentially on the outer side of the other forming cutting wheel (806). The protrusions (808) are adapted to and correspond one-to-one with the grooves (809). A cutter is provided at the center of the outer end face of the protrusion (808), and a tangent groove is provided at the center of the concave bottom surface of the groove (809). The tangent groove is adapted to the cutter.

2. The steel fiber production line according to claim 1, characterized in that: The side limiting unit (7) also includes two fixing plates (701), and a U-shaped bracket (702) is fixed between the two fixing plates (701). The opening of the U-shaped bracket (702) faces upward, and two limiting guide rollers (703) are installed at the bottom of the U-shaped bracket (702).

3. The steel fiber production line according to claim 1, characterized in that: Both ends of the second roller shaft (96) are provided with U-shaped frames (91). The lower slide plate (95) and the upper slide plate (94) are slidably inserted inside the U-shaped frame (91). A cover plate (92) is installed on the top of the U-shaped frame (91). The two second roller shafts (96) are respectively installed on the lower slide plate (95) and the upper slide plate (94). A second hand-tightening bolt (93) is threaded on the cover plate (92). The second hand-tightening bolt (93) passes through the cover plate (92). The lower end of the second hand-tightening bolt (93) is rotatably connected to the upper slide plate (94).

4. The steel fiber production line according to claim 1, characterized in that: The first wire harness gathering unit (3) includes two horizontal rollers (301) and two vertical rollers (302). The horizontal rollers (301) are perpendicular to the vertical rollers (302), and the steel fibers pass through the gap between the two vertical rollers (302) and the two horizontal rollers (301).

5. The steel fiber production line according to claim 1, characterized in that: The upper bracket (61) and the lower bracket (62) are connected by a first hand-tightening bolt (64).

6. The steel fiber production line according to claim 1, characterized in that: The cooling unit (14) is equipped with guide rollers (15) and multiple cold air outlets.

7. The steel fiber production line according to claim 1, characterized in that: A scraper (804) is provided on the outer side of the flattening roller (803), and the end of the scraper (804) abuts against the flattening roller (803).

8. The steel fiber production line according to claim 1, characterized in that: The front end of the forming and cutting mechanism (8) is provided with an upper pressure roller (801) and a lower pressure roller (802), and the line bar (16) is located between the upper pressure roller (801) and the lower pressure roller (802).

9. The steel fiber production line according to claim 1, characterized in that: A discharge hopper (807) is provided on the rear side of the forming cutting wheel (806).

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