Two-roller straightening machine for steel bar production

Abstract

The utility model relates to the technical field of straightening machines, in particular to a two-roller straightening machine for steel bar production, which comprises a base, a cylindrical rod is fixedly connected to the top of the base, a steel bar production limiting component is arranged at the top of the base, and the steel bar production limiting component comprises a top plate. The bottom of the top plate is fixedly connected to the top of the cylindrical rod, a supporting plate is fixedly connected to the top of the base, a first rotating roller is rotationally connected to the side face of the supporting plate, a transverse rod is fixedly connected to the bottom of the top plate, and a speed reducer is fixedly connected to the bottom of the transverse rod. And an output shaft of the speed reducer is fixedly connected to the side face of the first rotating roller, a conveying belt is arranged on the output shaft of the speed reducer, and the output shaft of the speed reducer is in transmission connection with a second rotating roller through the conveying belt. The technical problem that a two-roller straightening machine for steel bar production cannot accurately control the position of a steel bar in the related technology / the prior art is solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of straightening machine technology, specifically to a two-roll straightening machine for steel bar production. Background Technology

[0002] In steel bar production, two-roll straighteners are one of the commonly used pieces of equipment. They are mainly used to straighten steel bars, removing any bending or warping that occurs during the production process, and ensuring the quality and straightness of the steel bars.

[0003] According to a public disclosure of a steel bar straightening machine with adjustable straightening rollers (publication number: CN 210280260 U), a base is included, and a protective shell is fixedly connected to the top of the base. The left and right sides of the inner wall of the protective shell are respectively provided with a feed port and a discharge port. A transverse adjustment groove is provided on the top of the base and inside the protective shell, and a sliding block is movably connected inside the transverse adjustment groove.

[0004] The aforementioned method, through the cooperation of components such as the protective shell and the adjustment groove, cannot solve the problem of accurately controlling the position of the steel bar, which causes the steel bar to shift or sway during the straightening process, reducing the straightening accuracy and quality, and needs to be improved. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a two-roll straightening machine for steel bar production, which solves the technical problem in related / existing technologies that a two-roll straightening machine for steel bar production cannot accurately control the position of the steel bar.

[0006] According to one aspect, at least one embodiment of the present invention provides a two-roll straightening machine for steel bar production, including a base, a cylindrical rod fixedly connected to the top of the base, a steel bar production limiting assembly provided on the top of the base, the steel bar production limiting assembly including a top plate, the bottom of the top plate fixedly connected to the top of the cylindrical rod, a support plate fixedly connected to the top of the base, a rotating roller rotatably connected to the side of the support plate, a crossbar fixedly connected to the bottom of the top plate, a reducer fixedly connected to the bottom of the crossbar, the output shaft of the reducer fixedly connected to the side of the rotating roller, and a [missing information - likely a component or feature] provided on the output shaft of the reducer. A conveyor belt is used, and the output shaft of the reducer is connected to a rotating roller two via the conveyor belt. The side of the rotating roller two is rotatably connected to the side of the support plate. A placement plate is fixedly connected to the circumferential surface of the cylindrical rod. An L-shaped rod is fixedly connected to the side of the top plate. A motor is fixedly connected to the side of the L-shaped rod. A bidirectional lead screw is fixedly connected to the output shaft of the motor. A threaded sleeve is threadedly connected to the circumferential surface of the bidirectional lead screw. A limit rod is fixedly connected to the side of the motor. The end of the limit rod away from the motor passes through the side of the threaded sleeve. A vertical rod is fixedly connected to the bottom of the threaded sleeve. A clamping plate is fixedly connected to the side of the vertical rod.

[0007] For example, in at least one embodiment of the present invention, a two-roll straightening machine for producing steel bars is provided, which further includes: two threaded sleeves, vertical rods, and clamping plates, which are symmetrical to each other along the vertical central axis of the bidirectional screw; two placement plates, which are symmetrical to each other along the vertical central axis of the base; and two clamping plates, which are beneficial to clamp the two sides of the steel bar, limit the position of the steel bar, prevent the steel bar from shifting, and affect the straightening accuracy.

[0008] The placement plate is located on the side of rotating roller one and rotating roller two. The side of the clamping plate is fixedly connected with a protective pad. The design of the protective pad helps to protect the clamped steel bar and prevent the steel bar from being worn when it is clamped.

[0009] Several cylindrical rods are provided, arranged in pairs and symmetrical to each other along the vertical central axis of the base. Two motors and two-way lead screws are provided and symmetrical to each other along the vertical central axis of the top plate. The provision of several cylindrical rods is conducive to the stable support of the top plate components.

[0010] The first and second rotating rollers are located on the top of the base, the support plate is located on the side of the cylindrical rod, and a switch is provided on the top of the motor. The switch is designed to facilitate direct control of the motor.

[0011] According to another aspect, at least one embodiment of this utility model also provides a two-roll straightening machine for steel bar production, comprising: a heat removal component provided on the side of the base, the heat removal component including a support rod, one end of the support rod being fixedly connected to the side of a support plate, a rotating rod being rotatably connected to the side of the support rod, a fan blade being fixedly connected to the circumferential surface of the rotating rod, an inclined rod being fixedly connected to the circumferential surface of the rotating rod, a connecting rod being fixedly connected to the side of the threaded sleeve, an extrusion block being fixedly connected to the end of the connecting rod away from the threaded sleeve, a short rod being fixedly connected to the bottom of the L-shaped rod, a pressure chamber being fixedly connected to one end of the short rod, a push rod passing through one end of the pressure chamber, a push rod two passing through the end of the pressure chamber away from the push rod one, and a triangular block being fixedly connected to one end of the push rod one. The fan blade rotation generates a small amount of airflow to blow air onto the rotating roller one and rotating roller two, reducing the temperature of the rotating roller one and rotating roller two during use.

[0012] For example, in a two-roll straightening machine for steel bar production provided in at least one embodiment of this utility model, the triangular block is located on the displacement trajectory of the extrusion block, the inclined rod is located on the displacement trajectory of the push rod, and the fan blade is located on the side of the rotating roller one and the rotating roller two. This design is beneficial to allow the wind force generated by the fan blade to blow directly onto the rotating roller one and the rotating roller two.

[0013] A spring is fixedly connected to the circumferential surface of the push rod. The end of the spring away from the push rod is fixedly connected to one end of the pressure chamber. The spring is designed to automatically reset when the push rod is not squeezed or pushed.

[0014] A second spring is fixedly connected to the circumferential surface of the push rod 2. The end of the second spring away from the push rod 2 is fixedly connected to one end of the pressure chamber. The design of the second spring is conducive to automatic reset when the push rod 2 is not squeezed or pushed.

[0015] A torsion spring is fixedly connected to the circumference of the rotating rod. The end of the torsion spring away from the rotating rod is fixedly connected to the side of the support rod. The design of the torsion spring is conducive to the automatic reset of the rotating rod when it is not driven to rotate.

[0016] The beneficial effects of the embodiments of this utility model are as follows:

[0017] 1. In this utility model, the mutual cooperation between the motor, reducer, bidirectional lead screw, clamping plate and other components inside the steel bar production limiting component enables the relative movement of the bidirectional lead screw, threaded sleeve, vertical rod and clamping plate driven by the motor. This allows for precise control of the steel bar's position, preventing displacement or swaying during straightening, thereby improving straightening accuracy and quality. The temporary limiting effect on the steel bar ensures its stability during straightening, avoiding instability and contributing to improved straightening effect.

[0018] 2. In this utility model, through the cooperation of components such as the fan blades, inclined rods, air chamber, push rod one, and push rod two inside the heat removal assembly, the wind force generated by the fan blades can effectively reduce the working temperature of rotating roller one and rotating roller two, thereby improving the thermal management of the equipment and preventing overheating from affecting the stability and efficiency of the system. When the inclined rod and rotating rod are no longer compressed, the torsion spring will automatically reset and rotate the rotating rod and fan blades in the opposite direction. This mechanism enables the fan blades to rotate in the opposite direction, generating secondary wind force, further increasing the cooling effect, and maintaining the balance and efficient operation of the system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a three-dimensional appearance structure diagram of the present utility model;

[0021] Figure 2This is a three-dimensional side view of the reducer structure of this utility model;

[0022] Figure 3 This utility model Figure 1 A three-dimensional magnified structural diagram of A in the middle;

[0023] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of B in the diagram;

[0024] Figure 5 This is a three-dimensional bottom view of one part of the rotating roller of this utility model.

[0025] In the diagram: 1. Base; 2. Cylindrical rod; 3. Steel bar production limiting assembly; 31. Top plate; 32. Support plate; 33. Rotating roller one; 34. Rotating roller two; 35. Horizontal bar; 36. Reducer; 37. Conveyor belt; 38. Placement plate; 39. L-shaped rod; 310. Motor; 311. Bidirectional lead screw; 312. Threaded sleeve; 313. Vertical rod; 314. Clamping plate; 315. Protective pad; 316. Limiting rod; 4. Heat dissipation assembly; 41. Support rod; 42. Rotating rod; 43. Fan blade; 44. Diagonal rod; 45. Connecting rod; 46. Extrusion block; 47. Short rod; 48. Pressure chamber; 49. Push rod one; 410. Push rod two; 411. Triangular block; 412. Spring one; 413. Spring two; 414. Torsion spring. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-5 The diagram illustrates a two-roller straightening machine for steel bar production according to an embodiment of the present invention. It includes a base 1, a cylindrical rod 2 fixedly connected to the top of the base 1, a steel bar production limiting assembly 3 on the top of the base 1, a top plate 31 fixedly connected to the bottom of the top of the cylindrical rod 2, a support plate 32 fixedly connected to the top of the base 1, a rotating roller 33 rotatably connected to the side of the support plate 32, a crossbar 35 fixedly connected to the bottom of the top plate 31, a reducer 36 fixedly connected to the bottom of the crossbar 35, an output shaft of the reducer 36 fixedly connected to the side of the rotating roller 33, a conveyor belt 37 mounted on the output shaft of the reducer 36, and the output shaft of the reducer 36... A rotating roller 34 is connected via a conveyor belt 37. The side of the rotating roller 34 is rotatably connected to the side of the support plate 32. A placement plate 38 is fixedly connected to the circumferential surface of the cylindrical rod 2. An L-shaped rod 39 is fixedly connected to the side of the top plate 31. A motor 310 is fixedly connected to the side of the L-shaped rod 39. A bidirectional lead screw 311 is fixedly connected to the output shaft of the motor 310. A threaded sleeve 312 is threadedly connected to the circumferential surface of the bidirectional lead screw 311. A limit rod 316 is fixedly connected to the side of the motor 310. The end of the limit rod 316 away from the motor 310 passes through the side of the threaded sleeve 312. A vertical rod 313 is fixedly connected to the bottom of the threaded sleeve 312. A clamping plate 314 is fixedly connected to the side of the vertical rod 313.

[0033] In some examples, there are two threaded sleeves 312, vertical rods 313, and clamping plates 314, which are symmetrical to each other along the vertical central axis of the bidirectional lead screw 311. There are two placement plates 38, which are symmetrical to each other along the vertical central axis of the base 1. The two clamping plates 314 are beneficial to clamp the two sides of the steel bar, limit the steel bar, and prevent the steel bar from shifting and affecting the straightening accuracy.

[0034] The placement plate 38 is located on the side of the rotating roller 1 33 and the rotating roller 2 34. The side of the clamping plate 314 is fixedly connected with a protective pad 315. The design of the protective pad 315 is beneficial to protect the clamped steel bar and prevent the steel bar from being worn when it is clamped.

[0035] Several cylindrical rods 2 are provided, arranged in pairs and symmetrical to each other along the vertical central axis of the base 1. Two motors 310 and two-way lead screws 311 are provided and symmetrical to each other along the vertical central axis of the top plate 31. The provision of several cylindrical rods 2 is conducive to the stable support of the components of the top plate 31.

[0036] Rotating roller 1 33 and rotating roller 2 34 are located on the top of the base 1, the support plate 32 is located on the side of the cylindrical rod 2, and a switch is provided on the top of the motor 310. The switch is designed to facilitate direct control of the motor 310.

[0037] For example, such as Figure 1-5As shown in this application, a steel bar is placed on top of a placement plate 38, with one end passing through the gap between rotating roller 33 and rotating roller 34. The reducer 36 is activated, and the rotation of its output shaft drives rotating roller 33 to rotate. The rotation of the output shaft also drives the conveyor belt 37 to rotate, which in turn drives rotating roller 34 to rotate. This causes rotating rollers 33 and 34 to rotate simultaneously. By utilizing the two rotating rollers 33 and 34, a certain pressure and deformation effect are applied to the steel bar, causing it to gradually return to a straight line. After passing through the gap between rotating rollers 33 and 34... After being pressed by the moving roller 33 and the rotating roller 34, the bent part is straightened. The motor 310 is then started and rotated forward. This forward rotation of the motor 310 drives the bidirectional lead screw 311 to rotate forward. The bidirectional lead screw 311 then drives the two threaded sleeves 312, the vertical rod 313, and the clamping plates 314 to move relative to each other. The two clamping plates 314 are placed on the left and right sides of the plate 38, respectively. When the two clamping plates 314 move relative to each other, they clamp the steel bar placed on the plate 38, temporarily limiting the steel bar and preventing displacement and wobbling during straightening, which would affect the straightening effect. Through the synergistic action of two rotating rollers (rotating roller 33 and rotating roller 34), pressure and deformation can be applied evenly, effectively straightening the bent portion of the steel bar and gradually restoring it to a straight line. This allows for rapid and effective correction of the steel bar's bending. The relative movement of the bidirectional lead screw 311, threaded sleeve 312, vertical rod 313, and clamping plate 314, driven by motor 310, precisely controls the position of the steel bar, preventing displacement or swaying during straightening, thus improving straightening accuracy and quality. The temporary limiting effect on the steel bar ensures its stability during straightening, preventing instability and contributing to improved straightening results.

[0038] like Figures 1-5 As shown, this illustrates a two-roll straightening machine for steel bar production according to another embodiment of the present invention, comprising: a heat removal assembly 4 disposed on the side of a base 1, the heat removal assembly 4 including a support rod 41, one end of the support rod 41 being fixedly connected to the side of a support plate 32, a rotating rod 42 being rotatably connected to the side of the support rod 41, a fan blade 43 being fixedly connected to the circumferential surface of the rotating rod 42, a diagonal rod 44 being fixedly connected to the circumferential surface of the rotating rod 42, and a connecting rod 45 being fixedly connected to the side of a threaded sleeve 312, the connecting rod 45 being located away from the threaded sleeve 312. One end of 12 is fixedly connected to a compression block 46, the bottom of the L-shaped rod 39 is fixedly connected to a short rod 47, one end of the short rod 47 is fixedly connected to a pressure chamber 48, one end of the pressure chamber 48 is penetrated by a push rod 49, the end of the pressure chamber 48 away from the push rod 49 is penetrated by a push rod 410, one end of the push rod 49 is fixedly connected to a triangular block 411. By using the rotation of the fan blade 43 to generate a little wind, air is blown onto the rotating roller 33 and the rotating roller 34 to reduce the temperature of the rotating roller 33 and the rotating roller 34 during use.

[0039] In some examples, the triangular block 411 is located on the displacement trajectory of the extrusion block 46, the diagonal bar 44 is located on the displacement trajectory of the push rod 410, and the fan blade 43 is located on the side of the rotating roller 33 and the rotating roller 34. This design is beneficial to allow the wind force generated by the fan blade 43 to blow directly onto the rotating roller 33 and the rotating roller 34.

[0040] A spring 412 is fixedly connected to the circumferential surface of the push rod 49. The end of the spring 412 away from the push rod 49 is fixedly connected to one end of the pressure chamber 48. The spring 412 is designed to automatically reset when the push rod 49 is not squeezed or pushed.

[0041] A spring 413 is fixedly connected to the circumferential surface of the push rod 410. The end of the spring 413 away from the push rod 410 is fixedly connected to one end of the pressure chamber 48. The design of the spring 413 is conducive to the automatic reset when the push rod 410 is not squeezed or pushed.

[0042] A torsion spring 414 is fixedly connected to the circumferential surface of the rotating rod 42. The end of the torsion spring 414 away from the rotating rod 42 is fixedly connected to the side of the support rod 41. The design of the torsion spring 414 is conducive to the automatic reset of the rotating rod 42 when it is not driven to rotate.

[0043] For example, such as Figure 1-5As shown, the two threaded sleeves 312 move relative to each other. When the two threaded sleeves 312 move relative to each other, one of the threaded sleeves 312 will drive the connecting rod 45 and the pressing block 46 to move closer to the pressure chamber 48. The triangular block 411 and the push rod 49 are located on the movement trajectory of the pressing block 46. When the pressing block 46 moves, it will press the triangular block 411. Both the triangular block 411 and the pressing block 46 are provided with inclined surfaces. Through the influence of the inclined surfaces, the pressing block 46 will press the triangular block 411 and the push rod 49 into the interior of the pressure chamber 48, causing the push rod 49 to move into the interior of the pressure chamber 48, thus pushing the pressure chamber. The gas flow inside chamber 48 pushes out push rod 410 at the other end of chamber 48. The inclined rod 44 is located on the trajectory of push rod 410. Push rod 410 pushes out from above, squeezing the inclined rod 44 and causing it to rotate. This rotation drives the rotating rod 42 to rotate along the support rod 41. The rotation of the rotating rod 42 drives the fan blades 43 to rotate. The fan blades 43 generate a small amount of airflow. Since the fan blades 43 are located on the sides of rotating rollers 33 and 34, the generated airflow directly blows onto rotating rollers 33 and 34, cooling them and reducing their temperature. When the moving roller 34 is in use, and the inclined rod 44 and the rotating rod 42 are not compressed, they can be automatically reset by the torsion spring 414, causing the rotating rod 42 to rotate in the opposite direction, which in turn drives the fan blade 43 to rotate in the opposite direction, so that the fan blade 43 can generate secondary wind force. The relative movement between the two threaded sleeves 312 is the starting action of the system. Through the relative movement between the threaded sleeves 312, one of the threaded sleeves 312 will drive the connecting rod 45 and the extrusion block 46 to move. This movement can generate linear thrust. When the extrusion block 46 moves towards the pressure chamber 48, it will contact the triangular block 411. Both are provided with inclined surfaces, and the resulting inclined surface effect The compression block 46 should push the triangular block 411 and the push rod 49 into the pressure chamber 48. At this time, the movement of the push rod 49 will cause the gas in the pressure chamber 48 to flow. The wind force generated by the fan blade 43 can effectively reduce the working temperature of the rotating roller 33 and the rotating roller 34, thereby improving the thermal management of the equipment and preventing overheating from affecting the stability and efficiency of the system. When the inclined rod 44 and the rotating rod 42 are no longer compressed, the torsion spring 414 will automatically reset and rotate the rotating rod 42 and the fan blade 43 in the opposite direction. This mechanism enables the fan blade 43 to rotate in the opposite direction, generating secondary wind force, further increasing the cooling effect, and maintaining the balance and efficient operation of the system.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A two-roll straightener for steel bar production, characterized by, include: A base (1) is fixedly connected to a cylindrical rod (2) on its top, and a steel rod production limiting component (3) is provided on the top of the base (1). The steel bar production limiting assembly (3) includes a top plate (31), the bottom of which is fixedly connected to the top of the cylindrical rod (2). A support plate (32) is fixedly connected to the top of the base (1). A rotating roller (33) is rotatably connected to the side of the support plate (32). A crossbar (35) is fixedly connected to the bottom of the top plate (31). A reducer (36) is fixedly connected to the bottom of the crossbar (35). The output shaft of the reducer (36) is fixedly connected to the side of the rotating roller (33). A conveyor belt (37) is provided on the output shaft of the reducer (36). A rotating roller (34) is driven to the output shaft of the reducer (36) through the conveyor belt (37). The side of the rotating roller (34) is rotatably connected to the support plate. (32) On the side of the cylindrical rod (2), a placement plate (38) is fixedly connected to the circumference of the cylindrical rod (2). An L-shaped rod (39) is fixedly connected to the side of the top plate (31). A motor (310) is fixedly connected to the side of the L-shaped rod (39). A two-way lead screw (311) is fixedly connected to the output shaft of the motor (310). A threaded sleeve (312) is threadedly connected to the circumference of the two-way lead screw (311). A limit rod (316) is fixedly connected to the side of the motor (310). The end of the limit rod (316) away from the motor (310) passes through the side of the threaded sleeve (312). A vertical rod (313) is fixedly connected to the bottom of the threaded sleeve (312). A clamping plate (314) is fixedly connected to the side of the vertical rod (313).

2. A two-roll straightener for steel bar production according to claim 1, characterized in that, Two threaded sleeves (312), vertical rods (313), and clamping plates (314) are provided and are symmetrical to each other along the vertical central axis of the bidirectional screw (311). Two placement plates (38) are provided and are symmetrical to each other along the vertical central axis of the base (1).

3. A two-roll straightener for steel bar production according to claim 2, characterized in that, The placement plate (38) is located on the side of the rotating roller one (33) and the rotating roller two (34), and the side of the clamping plate (314) is fixedly connected with a protective pad (315).

4. A two-roll straightener for steel bar production according to claim 3, characterized in that, The cylindrical rods (2) are arranged in several pairs and are symmetrical to each other along the vertical central axis of the base (1). The motor (310) and the two-way lead screw (311) are arranged in two pairs and are symmetrical to each other along the vertical central axis of the top plate (31).

5. A two-roll straightener for steel bar production according to claim 4, characterized in that, The first rotating roller (33) and the second rotating roller (34) are located on the top of the base (1), the support plate (32) is located on the side of the cylindrical rod (2), and a switch is provided on the top of the motor (310).

6. A two-roll straightener for steel bar production according to claim 5, characterized in that, A heat dissipation assembly (4) is provided on the side of the base (1). The heat dissipation assembly (4) includes a support rod (41). One end of the support rod (41) is fixedly connected to the side of the support plate (32). A rotating rod (42) is rotatably connected to the side of the support rod (41). A fan blade (43) is fixedly connected to the circumferential surface of the rotating rod (42). A diagonal rod (44) is fixedly connected to the circumferential surface of the rotating rod (42). A connecting rod (45) is fixedly connected to the side of the threaded sleeve (312). The end of the connecting rod (45) away from the threaded sleeve (312) is fixedly connected to a compression block (46), the bottom of the L-shaped rod (39) is fixedly connected to a short rod (47), one end of the short rod (47) is fixedly connected to a pressure chamber (48), one end of the pressure chamber (48) is penetrated by a push rod one (49), the end of the pressure chamber (48) away from the push rod one (49) is penetrated by a push rod two (410), and one end of the push rod one (49) is fixedly connected to a triangular block (411).

7. A two-roll straightener for producing a steel bar according to claim 6, characterized in that, The triangular block (411) is located on the displacement trajectory of the extrusion block (46), the inclined rod (44) is located on the displacement trajectory of the push rod (410), and the fan blade (43) is located on the side of the rotating roller (33) and the rotating roller (34).

8. A two-roll straightener for producing a steel bar according to claim 7, characterized in that, A spring (412) is fixedly connected to the circumferential surface of the push rod (49), and the end of the spring (412) away from the push rod (49) is fixedly connected to one end of the pressure chamber (48).

9. A two-roll straightener for producing a steel bar according to claim 8, characterized in that, A spring (413) is fixedly connected to the circumferential surface of the push rod (410), and the end of the spring (413) away from the push rod (410) is fixedly connected to one end of the pressure chamber (48).

10. A two-roll straightener for producing a steel bar according to claim 9, characterized in that, A torsion spring (414) is fixedly connected to the circumferential surface of the rotating rod (42), and the end of the torsion spring (414) away from the rotating rod (42) is fixedly connected to the side of the support rod (41).

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