Steel bar straightening and cutting machine

Abstract

The utility model discloses a steel bar straightening and cutting machine which comprises a machining table, a fixing frame is fixedly installed on the top of the machining table, fixing holes are formed in the two sides of the fixing frame, a first conveying and straightening mechanism is arranged on the lower portion in the fixing frame, and a second conveying and straightening mechanism is arranged on the upper portion in the fixing frame. According to the reinforcing steel bar straightening and cutting machine, the first transmission mechanism, the adjusting lead screw, the tool apron, the hydraulic telescopic rod, the cutting blade, the positioning frame, the second motor, the limiting rollers, the adjusting block, the longitudinal groove and the cutting table are used in cooperation, the cutting position of a reinforcing steel bar is just located between the two sets of limiting rollers, and the reinforcing steel bar is longitudinally limited through the two sets of limiting rollers; according to the steel bar conveying device, it is guaranteed that the steel bars cannot deviate in the conveying process, the quality of the end openings of the cut-off positions of the steel bars is guaranteed, and through adjustability of the positions of the limiting rollers, the steel bars of different sizes can be effectively and longitudinally limited.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a steel bar straightening and cutting machine. Background Art

[0002] Rebar is a commonly used building material, which is usually used to reinforce the strength and toughness of concrete structures. Rebar is made of high-strength and corrosion-resistant steel, and its specific composition usually meets national or regional standards. In construction, rebar is used to increase the bearing capacity of concrete in order to resist the stress generated by external loads and its own gravity. Rebar has become one of the indispensable materials in modern construction due to its excellent mechanical properties and plasticity. After the rebar is produced, it is generally necessary to coil it into a roll for easy transportation. When the rebar is needed, it is straightened and cut by a rebar straightening and cutting machine.

[0003] The Chinese patent publication number is CN218555412U. It discloses a steel bar straightening and cutting machine, which includes a machine body, a cutting table is fixedly arranged in the middle of the machine body, and a plurality of evenly distributed lower conveying rollers are rotatably arranged inside the machine body and on both sides of the cutting table, a fixed plate is horizontally arranged on the top of the lower conveying roller, and a plurality of evenly distributed upper conveying rollers are rotatably arranged on the bottom of the fixed plate. The present application can complete the cutting of steel bars of different diameters, improve the versatility of the steel bar straightening and cutting machine, and can cool the cutting blade and the cutting part of the steel bar, thereby improving the use effect.

[0004] With respect to the above-mentioned related technologies, the device has some shortcomings. In actual use, the upper conveying roller and the lower conveying roller can only effectively limit the vertical position of the steel bar, that is, control the vertical direction. However, it is not equipped with a longitudinal limit structure for the steel bar, which leads to the steel bar being easily offset during the straightening and conveying process. This offset phenomenon will cause the steel bar to have undesirable port quality at the cutting point, affecting the overall processing effect. Therefore, it is necessary to provide a steel bar straightening and cutting machine to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a steel bar straightening and cutting machine to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A steel bar straightening and cutting machine comprises a processing table, a fixing frame is fixedly installed on the top of the processing table, fixing holes are opened on both sides of the fixing frame, a first conveying and straightening mechanism is arranged at the lower part of the fixing frame, a second conveying and straightening mechanism is arranged at the upper part of the fixing frame, a cutting table is fixedly installed on the top of the processing table, a hydraulic telescopic rod is fixedly installed on the top of the inner wall of the fixing frame, a knife seat is fixedly installed on the driving end of the hydraulic telescopic rod, a cutting blade is fixedly installed on the bottom of the knife seat, longitudinal grooves are opened on the top of the processing table on both sides of the cutting table, and two longitudinal grooves are rotatably installed inside An adjusting screw rod, a left-handed thread is arranged on the rear side of the outer wall of the adjusting screw rod, a right-handed thread is arranged on the front side of the outer wall of the adjusting screw rod, a symmetrically distributed adjusting block is sleeved on the outer wall of the adjusting screw rod, a limiting roller is rotatably installed on the top of the adjusting block, the front end of the adjusting screw rod passes through the front side of the inner wall of the longitudinal groove and extends to the front of the processing table, a first transmission mechanism is arranged between the two adjusting screw rods, a positioning frame is fixedly installed on the upper side of one side of the front of the processing table, a second motor is fixedly installed on the front of the positioning frame, and a driving end of the second motor passes through the front of the positioning frame and is fixedly connected to the front end of an adjusting screw rod.

[0008] As a further solution of the utility model: the first conveying and straightening mechanism includes a fixed plate, and the number of the fixed plates is two, the two fixed plates are symmetrically distributed and fixedly installed at the bottom inside the fixed frame, and a plurality of lower conveying rollers are rotatably installed on both sides of the cutting table between the two fixed plates, and the front end of the lower conveying roller passes through the back side of a fixed plate and extends to the front of a fixed plate, and mounting plates are fixedly installed on both sides of the front of one of the fixed plates, a worm gear is fixedly installed at the front end of the lower conveying roller, a worm is rotatably installed between the two mounting plates, and the worm is meshed with the worm gear, a third motor is fixedly installed on one side of one of the mounting plates, and the driving end of the third motor passes through one side of a mounting plate and extends to the other side of a mounting plate and is fixedly connected to one end of the worm.

[0009] As a further solution of the present invention: the second conveying and straightening mechanism includes a conveying frame, and the number of the conveying frames is two, the two conveying frames are symmetrically distributed and arranged above the two sides of the interior of the fixed frame, a number of upper conveying rollers are rotatably installed on the two conveying frames, a connecting plate is fixedly installed on the top of the two conveying frames, threaded cylinders are rotatably installed on both sides of the top of the fixed frame, a threaded rod is fixedly installed on the top of the connecting plate, and the top of the threaded rod extends to the interior of the corresponding threaded cylinder and is threadedly connected to the threaded cylinder, a limiting rod is fixedly installed on the top of the connecting plate, and the top of the limiting rod passes through the top of the inner wall of the fixed frame and extends to above the top of the fixed frame, a second transmission mechanism is arranged between the two threaded cylinders, a mounting frame is fixedly installed on one side of the top of the fixed frame, a first motor is fixedly installed on the top of the mounting frame, and the driving end of the first motor passes through the top of the mounting frame and is fixedly connected to the top of a threaded cylinder.

[0010] As a further solution of the utility model: the first transmission mechanism is composed of a driving wheel, a driven wheel and a belt, and the driving wheel and the driven wheel are connected by belt transmission, and the driving wheel and the driven wheel are respectively fixedly sleeved on the outer walls of the front ends of the two adjusting screw rods.

[0011] As a further solution of the utility model: the second transmission mechanism is connected by a driving wheel, a driven wheel and a belt transmission, and the driving wheel and the driven wheel are respectively fixedly sleeved on the outer walls of the top ends of the two threaded cylinders.

[0012] As a further solution of the utility model: a threaded hole matched with the adjusting screw rod is opened on the front side of the adjusting block, and the adjusting block is threadedly connected with the adjusting screw rod through the threaded hole opened on the front side.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model cooperates with the first transmission mechanism, the adjusting screw rod, the knife seat, the hydraulic telescopic rod, the cutting blade, the positioning frame, the second motor, the limiting roller, the adjusting block, the longitudinal groove and the cutting table. The cutting position of the steel bar is just located between the two sets of limiting rollers. The longitudinal limiting of the steel bar by the two sets of limiting rollers ensures that the steel bar will not be offset during the transportation process, so that the port quality of the steel bar at the cutting point is guaranteed. In addition, the adjustability of the position of the limiting roller makes it possible to effectively limit the longitudinal position of steel bars of different sizes, thereby improving the applicability of the cutting machine and ensuring its overall processing effect.

[0015] 2. The utility model realizes the adjustment of the spacing between the upper conveyor roller and the lower conveyor roller through the coordinated use of a processing table, a fixing frame, a fixing plate, a lower conveyor roller, a mounting frame, a first motor, a second transmission mechanism, a threaded cylinder, a limit rod, a threaded rod, a connecting plate, a conveyor frame, an upper conveyor roller, a fixing hole, a third motor, a mounting plate, a worm gear and a worm, so as to facilitate the cutting machine to convey and straighten steel bars of different sizes. The vertical position of the upper conveyor roller is adjusted by mechanical drive adjustment, which is convenient for fast, accurate and stable adjustment of the position of the upper conveyor roller without manual adjustment, and is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a steel bar straightening and cutting machine;

[0017] Figure 2 It is a schematic diagram of the connection structure between a fixed plate and a lower conveying roller in a steel bar straightening and cutting machine;

[0018] Figure 3 It is a schematic diagram of a partial top view of the structure of a processing table in a steel bar straightening and cutting machine;

[0019] Figure 4 The present invention is a schematic diagram of the connection structure between a threaded barrel and a threaded rod in a steel bar straightening and cutting machine.

[0020] In the figure: 1, processing table; 2, fixing frame; 3, fixing plate; 4, lower conveying roller; 5, first transmission mechanism; 6, adjusting screw; 7, mounting frame; 8, first motor; 9, knife holder; 10, hydraulic telescopic rod; 11, cutting blade; 12, second transmission mechanism; 13, threaded cylinder; 14, limiting rod; 15, threaded rod; 16, connecting plate; 17, conveying frame; 18, upper conveying roller; 19, fixing hole; 20, positioning frame; 21, second motor; 22, third motor; 23, mounting plate; 24, worm gear; 25, worm; 26, limiting roller; 27, adjusting block; 28, longitudinal groove; 29, cutting table. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4In the embodiment of the utility model, a steel bar straightening and cutting machine comprises a processing table 1, a fixing frame 2 is fixedly installed on the top of the processing table 1, fixing holes 19 are opened on both sides of the fixing frame 2, a first conveying and straightening mechanism is arranged at the lower part of the fixing frame 2, a second conveying and straightening mechanism is arranged at the upper part of the fixing frame 2, a cutting table 29 is fixedly installed on the top of the processing table 1, a hydraulic telescopic rod 10 is fixedly installed on the top of the inner wall of the fixing frame 2, a knife seat 9 is fixedly installed on the driving end of the hydraulic telescopic rod 10, a cutting blade 11 is fixedly installed on the bottom of the knife seat 9, longitudinal grooves 28 are opened on both sides of the cutting table 29 on the top of the processing table 1, and adjusting screws 6 are rotatably installed inside the two longitudinal grooves 28, A left-handed thread is arranged on the rear side of the outer wall of the adjusting screw rod 6, and a right-handed thread is arranged on the front side of the outer wall of the adjusting screw rod 6. A symmetrically distributed adjusting block 27 is sleeved on the outer wall of the adjusting screw rod 6, and the adjusting block 27 is slidably connected to the longitudinal groove 28. A limiting roller 26 is rotatably installed on the top of the adjusting block 27. The front end of the adjusting screw rod 6 passes through the front side of the inner wall of the longitudinal groove 28 and extends to the front of the processing table 1. A first transmission mechanism 5 is arranged between the two adjusting screw rods 6. A positioning frame 20 is fixedly installed on the upper side of the front side of the processing table 1. A second motor 21 is fixedly installed on the front side of the positioning frame 20, and a driving end of the second motor 21 passes through the front side of the positioning frame 20 and is fixedly connected to the front end of an adjusting screw rod 6.

[0023] Reference Figure 1 and Figure 2 In the present application, the first conveying and straightening mechanism includes a fixed plate 3, and the number of the fixed plates 3 is two, and the two fixed plates 3 are symmetrically distributed and fixedly installed at the bottom of the fixed frame 2. A plurality of lower conveying rollers 4 are rotatably installed on both sides of the cutting table 29 between the two fixed plates 3, and the front end of the lower conveying roller 4 passes through the back of a fixed plate 3 and extends to the front of a fixed plate 3. Both sides of the front of a fixed plate 3 are fixedly installed with mounting plates 23, and a worm gear 24 is fixedly installed at the front end of the lower conveying roller 4. A worm 25 is rotatably installed between the two mounting plates 23, and the worm 25 is meshed with the worm gear 24. A third motor 22 is fixedly installed on one side of a mounting plate 23, and the driving end of the third motor 22 passes through one side of a mounting plate 23 and extends to the other side of a mounting plate 23 and is fixedly connected to one end of the worm 25, providing power for the transportation of steel bars.

[0024] Reference Figure 1In the present application, the second conveying and straightening mechanism includes a conveying frame 17, and the number of conveying frames 17 is two. The two conveying frames 17 are symmetrically distributed above the two sides of the interior of the fixed frame 2. A plurality of upper conveying rollers 18 are rotatably installed on the two conveying frames 17. A connecting plate 16 is fixedly installed on the top of the two conveying frames 17. A threaded cylinder 13 is rotatably installed on both sides of the top of the fixed frame 2, and the bottom end of the threaded cylinder 13 passes through the top of the fixed frame 2 and extends to the upper part of the interior of the fixed frame 2. A threaded rod 15 is fixedly installed on the top of the connecting plate 16, and the top end of the threaded rod 15 extends to the inside of the corresponding threaded cylinder 13. It is threadedly connected with the threaded cylinder 13, a limiting rod 14 is fixedly installed on the top of the connecting plate 16, and the top of the limiting rod 14 passes through the top of the inner wall of the fixing frame 2 and extends to above the top of the fixing frame 2, a second transmission mechanism 12 is arranged between the two threaded cylinders 13, a mounting frame 7 is fixedly installed on one side of the top of the fixing frame 2, a first motor 8 is fixedly installed on the top of the mounting frame 7, and the driving end of the first motor 8 passes through the top of the mounting frame 7 and is fixedly connected to the top of a threaded cylinder 13, which can effectively limit steel bars of different sizes in cooperation with the first conveying and straightening mechanism, thereby improving the versatility and reliability of the cutting machine.

[0025] Reference Figure 1 and Figure 3 In the present application, the first transmission mechanism 5 is composed of a driving wheel, a driven wheel and a belt, and the driving wheel and the driven wheel are connected by a belt drive, and the driving wheel and the driven wheel are respectively fixedly sleeved on the outer walls of the front ends of the two adjusting screw rods 6.

[0026] Reference Figure 1 In the present application, the second transmission mechanism 12 is connected by a driving wheel, a driven wheel and a belt drive, and the driving wheel and the driven wheel are fixedly sleeved on the outer walls of the top ends of the two threaded cylinders 13 respectively.

[0027] Reference Figure 3 In the present application, a threaded hole matching the adjusting screw 6 is provided on the front of the adjusting block 27, and the adjusting block 27 is threadedly connected to the adjusting screw 6 through the threaded hole provided on the front of the adjusting block 27, so that the adjusting block 27 can move with the rotation of the adjusting screw 6.

[0028] The working principle of the utility model is:

[0029] Reference Figures 1 to 4When in use, the entire device is controlled by the main control button. Since the device matched with the control button is a commonly used device and belongs to the existing common knowledge technology, its electrical connection relationship and specific circuit structure are not described here. The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The processed steel bars are passed through the first conveying and straightening mechanism and the second conveying and straightening mechanism. The conveying mechanism will convey and straighten the steel bars and control the second motor 21 to run at the same time. The driving end of the second motor 21 drives an adjusting screw rod 6 to rotate. Through the transmission effect of the first transmission mechanism 5, the two adjusting screw rods 6 are rotated at the same time. Through the thread transmission of the left-handed thread and the right-handed thread on the adjusting screw rod 6, and the sliding relationship between the adjusting block 27 and the longitudinal groove 28, the two adjusting blocks 27 located inside the longitudinal groove 28 are moved relative to each other or oppositely at the same time, and the movement of the adjusting block 27 drives the limiting roller 26 is moved, so that the two groups of limiting rollers 26 are moved relatively or oppositely at the same time, and the spacing between the two groups of limiting rollers 26 is adjusted to contact and limit the outer wall of the steel bar to be processed. Because the positions of the two groups of limiting rollers 26 are located on both sides of the cutting table 29, during the straightening and conveying process of the steel bars, the driving end of the hydraulic telescopic rod 10 is controlled to drive the knife seat 9 to move downward, and the corresponding driving cutting blade 11 of the knife seat 9 is driven to move downward, so that the cutting blade 11 cuts the steel bar on the top of the cutting table 29, and the cutting position of the steel bar is just located between the two groups of limiting rollers 26. The longitudinal limiting of the steel bar by the two groups of limiting rollers 26 ensures that the steel bar will not be offset during the conveying process, so that the port quality of the steel bar at the cutting position is guaranteed, and the adjustability of the position of the limiting rollers 26 makes it possible to effectively limit the longitudinal position of steel bars of different sizes, thereby improving the applicability of the cutting machine and ensuring its overall processing effect.

[0030] Reference Figure 1 , Figure 2 and Figure 4When in use, during the process of conveying and straightening the steel bars through the conveying and straightening mechanism, the third motor 22 is controlled by the switch to start working, and the driving end of the third motor 22 drives the worm 25 to rotate, and the worm 25 is meshed with the worm wheel 24, so that the worm wheel 24 drives the lower conveying roller 4 to rotate, and the rotation of the lower conveying roller 4 will convey and straighten the steel bars passing through its upper surface and the lower surface of the upper conveying roller 18. When processing steel bars of different sizes, the first motor 8 can be controlled by the switch to start working, and the driving end of the first motor 8 drives a threaded cylinder 13 to rotate, and the transmission effect of the second transmission mechanism 12 makes the two threaded cylinders 13 rotate synchronously, and the threaded cylinder 13 and the threaded cylinder 13 are connected to each other. The threaded transmission of the threaded rod 15 and the sliding plug-in relationship between the connecting plate 16 and the fixed frame 2 through the limit rod 14 enable the two threaded rods 15 to move vertically stably. The threaded rod 15 drives the two conveying frames 17 to move vertically synchronously through the connecting plate 16. The movement of the conveying frame 17 drives the upper conveying roller 18 to move, so that the spacing between the upper conveying roller 18 and the lower conveying roller 4 can be adjusted, which is convenient for the cutting machine to convey and straighten steel bars of different sizes. The vertical position of the upper conveying roller 18 is adjusted by mechanical drive adjustment, which is convenient for fast, accurate and stable adjustment of the position of the upper conveying roller 18 without manual adjustment, which is convenient for people to use.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel bar straightening and cutting machine, comprising a processing table (1), characterized in that: A fixing frame (2) is fixedly mounted on the top of the processing table (1), fixing holes (19) are provided on both sides of the fixing frame (2), a first conveying and straightening mechanism is provided at the lower part of the fixing frame (2), and a second conveying and straightening mechanism is provided at the upper part of the fixing frame (2), a cutting table (29) is fixedly mounted on the top of the processing table (1), a hydraulic telescopic rod (10) is fixedly mounted on the top of the inner wall of the fixing frame (2), a knife seat (9) is fixedly mounted on the driving end of the hydraulic telescopic rod (10), a cutting blade (11) is fixedly mounted on the bottom of the knife seat (9), longitudinal grooves (28) are provided on both sides of the cutting table (29) at the top of the processing table (1), and adjusting screw rods (6) are rotatably mounted inside the two longitudinal grooves (28), and the A left-handed thread is arranged on the rear side of the outer wall of the adjusting screw rod (6), and a right-handed thread is arranged on the front side of the outer wall of the adjusting screw rod (6). A symmetrically distributed adjusting block (27) is sleeved on the outer wall of the adjusting screw rod (6), and a limit roller (26) is rotatably installed on the top of the adjusting block (27). The front end of the adjusting screw rod (6) passes through the front side of the inner wall of the longitudinal groove (28) and extends to the front of the processing table (1). A first transmission mechanism (5) is arranged between the two adjusting screw rods (6). A positioning frame (20) is fixedly installed above one side of the front of the processing table (1), and a second motor (21) is fixedly installed on the front of the positioning frame (20), and the driving end of the second motor (21) passes through the front of the positioning frame (20) and is fixedly connected to the front end of an adjusting screw rod (6).

2. A steel bar straightening and cutting machine according to claim 1, characterized in that: The first conveying and straightening mechanism comprises a fixed plate (3), and the number of the fixed plates (3) is two. The two fixed plates (3) are symmetrically distributed and fixedly installed at the bottom of the fixed frame (2). A plurality of lower conveying rollers (4) are rotatably installed on both sides of the cutting table (29) between the two fixed plates (3), and the front end of the lower conveying roller (4) passes through the back of a fixed plate (3) and extends to the front of the front of the fixed plate (3). Both sides of the front of the fixed plate (3) are fixedly installed with mounting plates (23). A worm gear (24) is fixedly installed at the front end of the lower conveying roller (4). A worm (25) is rotatably installed between the two mounting plates (23), and the worm gear (25) is meshed with the worm gear (24). A third motor (22) is fixedly installed on one side of one mounting plate (23), and the driving end of the third motor (22) passes through one side of one mounting plate (23) and extends to the other side of one mounting plate (23) and is fixedly connected to one end of the worm gear (25).

3. A steel bar straightening and cutting machine according to claim 1, characterized in that: The second conveying and straightening mechanism comprises a conveying frame (17), and the number of the conveying frames (17) is two. The two conveying frames (17) are symmetrically distributed above the two sides of the fixed frame (2). A plurality of upper conveying rollers (18) are rotatably mounted on the two conveying frames (17). A connecting plate (16) is fixedly mounted on the top of the two conveying frames (17). Threaded cylinders (13) are rotatably mounted on both sides of the top of the fixed frame (2). A threaded rod (15) is fixedly mounted on the top of the connecting plate (16), and the top of the threaded rod (15) extends to the corresponding threaded cylinder (13). 3) and is threadedly connected to the threaded cylinder (13); a limiting rod (14) is fixedly installed on the top of the connecting plate (16); and the top of the limiting rod (14) passes through the top of the inner wall of the fixing frame (2) and extends to the top of the fixing frame (2); a second transmission mechanism (12) is arranged between the two threaded cylinders (13); a mounting frame (7) is fixedly installed on one side of the top of the fixing frame (2); a first motor (8) is fixedly installed on the top of the mounting frame (7); and a driving end of the first motor (8) passes through the top of the mounting frame (7) and is fixedly connected to the top of a threaded cylinder (13).

4. A steel bar straightening and cutting machine according to claim 1, characterized in that: The first transmission mechanism (5) is composed of a driving wheel, a driven wheel and a belt, and the driving wheel and the driven wheel are connected by belt transmission. The driving wheel and the driven wheel are respectively fixedly sleeved on the outer walls of the front ends of the two adjusting screw rods (6).

5. The steel bar straightening and cutting machine according to claim 3, characterized in that: The second transmission mechanism (12) is connected by a driving wheel, a driven wheel and a belt transmission, and the driving wheel and the driven wheel are respectively fixedly sleeved on the outer walls of the top ends of the two threaded cylinders (13).

6. A steel bar straightening and cutting machine according to claim 1, characterized in that: The front surface of the adjusting block (27) is provided with a threaded hole matched with the adjusting screw rod (6), and the adjusting block (27) is threadedly connected with the adjusting screw rod (6) through the threaded hole provided on the front surface.

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