Steel bar maintenance and straightening machine for engineering

Abstract

The invention discloses an integrated machine for curing and straightening steel bars for engineering, comprising an outer frame, which is provided with a feed inlet and a discharge outlet, and a steel bar is passed through the middle; a movable frame is provided at the top and bottom of the outer frame, and the movable frame is limited and roughly adjusted by the cooperation of two nuts and a limit rod; a pressure rod is connected to the movable frame, and a pressure head is provided at the other end of the pressure rod, and the upper and lower pressure heads are buckled to squeeze the steel bar, and an adjustment device is provided between the movable frame and the outer frame for fine-tuning the movable frame; a movable device is also provided between the movable frame and the outer frame, and a pressure frame is provided inside the outer frame, and one end of the pressure frame is fixedly connected to the movable device, and a pressure roller is provided at the other end, and the upper and lower pressure rollers squeeze the steel bar, and the movable device is used to fine-tune the pressure roller. The invention ensures the adaptation effect of the entire equipment to steel bars of different diameters, and also increases the curing and straightening effect of the steel bar.

Description

Technical Field

[0001] The invention belongs to the technical field of steel bar maintenance and straightening, and in particular relates to an integrated steel bar maintenance and straightening machine for engineering. Background Art

[0002] During construction, various types of building materials are needed. Steel bars, as one of the building materials, are widely used in various construction projects. During construction, steel bars may be bent and need to be straightened. The existing straightening method is generally done manually with simple tools, which is very laborious for thicker steel bars.

[0003] In the process of construction, a steel bar straightening device is often needed. Except for some small portable straightening devices, the existing large straightening devices cannot be adjusted according to the actual thickness of the steel bars, and have low applicability.

[0004] Therefore, it is necessary to invent an engineering steel bar maintenance and straightening integrated machine to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides an all-in-one machine for curing and straightening steel bars for engineering purposes, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A steel bar curing and straightening machine for engineering, comprising an outer frame, a feed port is arranged on one side of the outer frame, and a discharge port is arranged on the other side, the feed port and the discharge port are both located on the horizontal center line of the outer frame, and steel bars are arranged on the horizontal center line of the outer frame, and the steel bars pass through the feed port and the discharge port;

[0008] The outer frame is provided with movable frames at the top and bottom, the movable frames are arranged parallel to the horizontal center line of the outer frame, an adjustment device is arranged between the movable frame and the outer frame, and the adjustment device is in the first placement groove on the side of the outer frame; and the movable frame is provided with a pressure rod toward the inner side of the outer frame, one end of the pressure rod is integrated with the movable frame, and the other end is provided with a pressure head, the upper and lower pressure heads are opposite, and the pressure head is in contact with the surface of the steel bar;

[0009] A movable device is also arranged between the movable frame and the outer frame, and the movable device is located in a second placement groove on the side of the outer frame. A pressing frame is arranged inside the outer frame, and one end of the pressing frame is fixedly connected to the movable device, and a pressing roller is arranged at the other end, and the upper and lower pressing rollers are opposite to each other, and the pressing rollers are in contact with the surface of the steel bar.

[0010] Furthermore, the cross-sectional shape of the pressure head along the length direction of the steel bar is a right-angled trapezoid, and the side of the pressure head close to the feed port is set as an inner bevel; and a semi-cylindrical groove is set on the side of the pressure head opposite to the steel bar, and the semi-cylindrical groove corresponds to the circumferential side of the steel bar. The steel bar is in sliding contact with the pressure head through the semi-cylindrical groove, and the upper and lower pressure heads correspondingly buckle the steel bars through the semi-cylindrical groove; and the outer side of the pressure head is fixedly connected to the end of the pressure rod by a screw.

[0011] Furthermore, grinding blocks are provided at the feed port and the discharge port, the inner edges of the grinding blocks correspond to the shapes of the feed port and the discharge port, and multiple grinding blocks enclose an opening with the same shape as the feed port and the discharge port; a convex plate is provided on the outer side of the grinding block, and the convex plate is fixedly connected to the end face of the outer frame.

[0012] Furthermore, limit rods are provided at both ends of the top and bottom of the outer frame, the ends of the limit rods are fixedly connected to the outer frame, and two nuts are sleeved on the surface of the limit rods. The limit rods pass through the two ends of the movable frame, and the two nuts are respectively located on the inner and outer sides of the movable frame.

[0013] Furthermore, the adjustment device includes a moving rod, one end of which is fixedly connected to the inner side of the movable frame, and the other end is placed in the first placement groove; an annular groove is provided on the surface of the moving rod, a rotating sleeve is movably sleeved in the annular groove, and a sliding groove is provided inside the moving rod, a moving frame is provided on the inner side of the rotating sleeve, the moving frame is threadedly connected to the rotating sleeve, and the end of the moving frame is slidably provided in the sliding groove.

[0014] Furthermore, a movable groove is provided inside the end of the movable rod away from the movable frame, and a partition frame is provided at the center of the movable groove, a limit frame and a rotating rod are provided inside the movable groove, the rotating rod is close to the partition frame, one end of the rotating rod is hinged to the limit frame, and the other end is hinged to the end of the movable frame; an extrusion block is provided at the other end of the limit frame, one end of the extrusion block is located inside the movable groove, and the other end is in sliding contact with the inner side wall of the first placement groove, a strip groove corresponding to the end of the limit frame is provided inside the extrusion block, a spring is sleeved on the surface of the extrusion block, and the spring is between the outer side of the movable rod and the end of the extrusion block; the end of the limit frame is slidably arranged in the strip groove and moves the spring.

[0015] Furthermore, the limit frame and the rotating rod are symmetrically arranged on both sides of the partition frame; the outer side surface of the extrusion block and the inner side surface of the first placement groove are corresponding to inclined surfaces.

[0016] Further, the movable device includes a pressing plate, the pressing plate is inside the second placement groove, and the two side surfaces of the pressing plate are in sliding contact with the inner wall of the second placement groove, the top of the pressing plate is provided with an inclined sliding groove, the outer side of the pressing plate is provided with a connecting rod, one end of the connecting rod is slidably arranged in the sliding groove, and the other end of the connecting rod is provided with a collar, the inner side of the collar is movably sleeved with a limiting sleeve, and the limiting sleeve is threadedly sleeved on the surface of the movable frame;

[0017] The end of the pressing frame passes through the second placement groove, and the pressing frame is fixedly connected to the bottom of the pressing plate.

[0018] Furthermore, a thread segment corresponding to and matching the limiting sleeve is provided on the surface of the movable frame, and the length of the thread segment corresponds to the length of the sliding groove.

[0019] Technical effects and advantages of the present invention:

[0020] 1. The present invention can adjust the relative distance between the two pressure heads and the upper and lower pressure rollers at any time according to the diameter of the steel bar through the cooperation effect of the two nuts and the limit rod, thereby ensuring the adaptation effect of the entire equipment to steel bars of different diameters, and also increasing the maintenance and straightening effect of the steel bars; when the two nuts limit the movable frame, the pressure head and the upper and lower pressure rollers will not shake up and down during the process of squeezing the steel bar, and the two pressure heads and the upper and lower pressure rollers will straighten the steel bar; when the two nuts do not limit the movable frame, the upper and lower pressure rollers will shake up and down during the process of squeezing the steel bar, and the cooperation of the pressure head and the upper and lower pressure rollers can remove the rust of the steel bar during the straightening process of the steel bar, thereby ensuring the maintenance effect of the equipment on the steel bar.

[0021] 2. The present invention can adjust the relative distance between the two limit frames through the rotating sleeve, thereby limiting the moving distance of the adjustment device inside the first placement groove, ensuring the shaking effect of the movable frame, and ensuring the shaking effect of the movable frame through the elastic force of the spring, thereby increasing the rust removal effect of the pressure head and the upper and lower pressure rollers on the steel bars.

[0022] 3. The present invention moves on the surface of the threaded section by a limiting sleeve, and the limiting sleeve drives the connecting rod to move through the collar. The second placement groove prevents the pressure plate from moving left and right, and the end of the connecting rod can slide on the surface of the clamping rod, and the sliding cooperation with the connecting rod through the inclined slope can achieve the purpose of adjusting the distance between the pressure plate and the movable frame. When the pressure plate moves up and down inside the second placement groove, the pressure plate drives the pressure roller to move up and down inside the outer frame through the pressure frame, so that the relative distance between the upper and lower pressure rollers can be adjusted according to the diameter of the steel bar.

[0023] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall cross-sectional structure diagram of the integrated machine for curing and straightening steel bars for engineering use according to an embodiment of the present invention is shown;

[0025] Figure 2 A schematic diagram of the matching structure of the pressure head and the steel bar according to an embodiment of the present invention is shown;

[0026] Figure 3 A schematic diagram of the matching structure of the grinding block and the convex plate according to an embodiment of the present invention is shown;

[0027] Figure 4 An overall enlarged structural diagram of the adjustment device according to an embodiment of the present invention is shown;

[0028] Figure 5 A schematic diagram showing the connection between the limit frame and the extrusion block in the adjustment device according to an embodiment of the present invention is shown;

[0029] Figure 6 The enlarged overall structure diagram of the movable device of the embodiment of the present invention is shown.

[0030] In the figure: 1. outer frame; 2. feed inlet; 3. discharge outlet; 4. steel bar; 5. movable frame; 6. adjustment device; 7. pressure rod; 8. pressure head; 9. movable device; 10. pressure frame; 11. pressure roller; 12. grinding block; 13. convex plate; 14. limiting rod; 15. nut; 16. moving rod; 17. rotating sleeve; 18. moving frame; 19. slide groove; 20. movable groove; 21. limiting frame; 22. rotating rod; 23. extrusion block; 24. strip groove; 25. spring; 26. pressure plate; 27. clamping rod; 28. connecting rod; 29. ​​collar; 30. limiting sleeve. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a steel bar maintenance and straightening integrated machine for engineering use, such as Figure 1As shown, it includes an outer frame 1, a feed port 2 is provided on one side of the outer frame 1, and a discharge port 3 is provided on the other side of the outer frame 1, the feed port 2 and the discharge port 3 are both located on the horizontal center line of the outer frame 1, and a steel bar 4 is provided on the horizontal center line of the outer frame 1, the steel bar 4 is the steel bar to be straightened and derusted, and the two ends of the steel bar 4 pass through the feed port 2 and the discharge port 3 respectively. The outer frame 1 is provided with movable frames 5 at the top and bottom of one end near the feed port 2, and the two movable frames 5 are symmetrical in upper and lower directions and are arranged parallel to the horizontal center line of the outer frame 1.

[0033] An adjustment device 6 is provided between the movable frame 5 and the outer frame 1, and the adjustment device 6 is in the first placement groove on the side of the outer frame 1. The movable frame 5 is provided with a pressure rod 7 toward the inner side of the outer frame 1, and the pressure rod 7 penetrates the outer frame 1 and extends toward the center of the outer frame. One end of the pressure rod 7 is integrated with the movable frame 5, and the other end of the pressure rod 7 is provided with a pressure head 8, and the pressure head 8 is inside the outer frame 1, and the upper and lower pressure heads 8 are opposite, and the symmetry center line is the horizontal center line of the outer frame 1; the inner side surface of the bottom of the pressure head 8 is on the outer side of the steel bar 4, and can fit with the circumferential surface of the steel bar 4, and the upper and lower pressure heads 8 press the steel bar 4 against each other. The adjustment device 6 is used to fine-tune the movable frame 5 and the up and down movement of the pressure head 8.

[0034] A movable device 9 is also provided between the movable frame 5 and the outer frame 1, and the movable device 9 is in the second placement groove on the side of the outer frame 1. A pressing frame 10 is provided inside the outer frame 1, and the pressing frame 10 extends through the outer frame 1 to the center of the outer frame. One end of the pressing frame 10 is fixedly connected to the movable device 9, and a pressing roller 11 is provided at the other end of the pressing frame 10. The upper and lower pressing rollers 11 are opposite to each other, and the symmetry center line is the horizontal center line of the outer frame 1. The pressing roller 11 fits the surface of the steel bar 4, and the upper and lower pressing rollers 11 press the steel bar 4 against each other. The pressing roller 11 further uses a grinding roller to facilitate rust removal of the steel bar. The movable device 9 is used to fine-tune the up and down movement of the pressing roller 11.

[0035] The upper and lower pressure heads 8 are arranged correspondingly, and the upper and lower pressure rollers 11 are arranged correspondingly, thereby clamping and straightening the steel bar 4 and further removing rust. Such pressure head combination and pressure roller combination can be arranged in several groups along the length direction of the steel bar.

[0036] exist Figure 1 In the embodiment, the pressure head 8 is a trapezoidal block, and the cross-sectional shape along the length direction of the steel bar is a right-angled trapezoid, and the side of the pressure head 8 facing the feed port 2 is set as an inner slope, and the slopes of the upper and lower pressure heads are opposite to form a notch. The pressure head 8 is provided with a semi-cylindrical groove corresponding to the circumferential surface of the steel bar 4, such as Figure 2As shown, the inner sides of the upper and lower pressure heads 8 are respectively in contact with the top and bottom of the steel bar 4 through the semi-cylindrical groove. The outer sides of the two pressure heads 8 are fixedly connected to the ends of the pressure rods 7 through bolts. When the bent steel bar 4 enters the outer frame 1 from the feed port 2, the pressure head 8 guides the bent steel bar 4 into the semi-cylindrical groove through the inclined surface. When the movable frame 5 is not in a limited state, the two pressure heads 8 and the movable frame 5 are used to perform preliminary straightening and rust removal on the bent steel bar 4; when the movable frame 5 is in a limited state, the two pressure heads 8 are used to press the steel bar 4, so as to achieve the purpose of further straightening the steel bar 4.

[0037] like Figure 1 and Figure 3 As shown, grinding blocks 12 are provided at the feed port 2 and the discharge port 3. The grinding blocks 12 correspond to and match the annular feed port 2 and the discharge port 3. The inner side of the grinding block 12 is an arc surface concentric with the feed port 2 and the discharge port 3. Several grinding blocks 12 together enclose a whole ring, thereby forming a grinding of the outer surface of the steel bar 4. A convex plate 13 is provided on the outer side of the grinding block 12. The convex plate 13 corresponds to and fits the end surface of the outer frame 1. The convex plate 13 is provided with a screw hole, and is fixedly connected to the outer frame 1 by passing a bolt through the screw hole. When straightening the steel bar 4, the grinding block 12 can be fixed at the feed port 2 and the discharge port 3. Grinding blocks 12 with different arc radii can be selected according to the diameter of the steel bar 4. Multiple grinding blocks 12 are spliced ​​together to facilitate the adaptation of steel bars 4 with different diameters. The grinding block 12 is used to increase the rust removal effect of the entire equipment on the steel bar 4.

[0038] exist Figure 1 In the embodiment, both ends of the top and bottom of the outer frame 1 are provided with limit rods 14, one end of the limit rod 14 is fixedly connected to the outer frame 1, and two nuts 15 are sleeved on the surface of the limit rod 14, the limit rod 14 passes through the end of the movable frame 5, and the two nuts 15 are respectively located on the inner side and the outer side of the movable frame 5. By utilizing the cooperation effect of the two nuts 15 and the limit rod 14, the movable frame 5 can be limited to move within the range between the two nuts 15, and by adjusting the positions of the two nuts 15 on the limit rod 14, the distance between the movable frame 5 and the horizontal center of the outer frame can be adjusted, so that the relative distance between the upper and lower pressure heads 8 and the two pressure rollers 11 can be adjusted at any time according to the diameter of the steel bar 4, thereby ensuring the adaptation effect of the entire equipment to steel bars 4 with different diameters, and also increasing the curing and straightening effect of the steel bars 4.

[0039] like Figure 1 and Figure 4As shown, the adjustment device 6 is arranged in the first placement groove on the upper and lower sides of the outer frame 1, and includes a moving rod 16, one end of which is fixedly connected to the movable frame 5, and the other end is placed in the first placement groove; an annular groove is arranged on the surface of the moving rod 16, and a rotating sleeve 17 is sleeved in the annular groove, and the rotating sleeve 17 can only rotate in the annular groove. A moving frame 18 is arranged on the inner side of the rotating sleeve 17, and the outer side surface of the end of the moving frame 18 is threadedly connected with the inner side surface of the rotating sleeve 17, and a sliding groove 19 for the moving frame 18 to move is arranged inside the moving rod 16, and the moving frame 18 can be moved up and down along the sliding groove 19 by rotating the rotating sleeve 17.

[0040] A movable groove 20 is provided inside the end of the movable rod 16 away from the movable frame 5, and a partition frame is provided at the center of the movable groove 20. A limiting frame 21 and a rotating rod 22 are provided inside the movable groove 20. One end of the rotating rod 22 is hinged to one end of the limiting frame 21, and the other end of the rotating rod 22 is hinged to the end of the movable frame 18; an extrusion block 23 is provided at the other end of the limiting frame 21, and the end of the limiting frame 21 passes through the end face of the extrusion block 23. One end of the extrusion block 23 is located inside the movable groove 20, and the other end is in sliding contact with the inner side wall of the first placement groove, and the outer side surface of the extrusion block 23 corresponds to the inner side surface of the first placement groove as an inclined surface.

[0041] like Figure 4 , 5 As shown, a strip groove 24 corresponding to the end of the limiting frame 21 is arranged inside the extrusion block 23, and the other end of the limiting frame 21 slides in the strip groove 24 of the extrusion block 23, and the end of the limiting frame 21 is slidably connected with the extrusion block 23 through the strip groove 24; and a spring 25 is sleeved on the surface of the extrusion block 23, and the spring 25 is located on the outside of the moving rod 16. When the limiting frame 21 slides along the strip groove 24, the spring 25 is pushed at the same time.

[0042] When the movable frame 5 moves up and down inside the first placement groove through the moving rod 16, the movable frame 18 is moved up and down along the sliding groove 19 by rotating the rotating sleeve 17. When the movable frame 18 moves down, the rotating rod 22 is pushed to move and the relative distance between the two limit frames 21 is adjusted. The spacer provides a deflection force for the rotating rod 22 during the movement of the rotating rod 22, so that the rotating rod 22 is deflected at the same time during the movement. When the rotating rod 22 is deflected, the limiting frame 21 is pushed to gradually slide into the groove 24, thereby shortening the distance between the end of the limiting frame 21 and the inner end surface of the groove 24. At the same time, the limiting frame 21 pushes the spring 25, and the spring 25 pushes the extrusion block 23 to squeeze against the inner side wall of the first placement groove. There is an inclined contact between the extrusion block 23 and the inner side wall of the first placement groove, forcing the extrusion block 23 to move downward, thereby driving the adjustment device 6 to move downward. Due to the supporting effect of the spring 25, the extrusion block 23 is pressed against the inner side wall of the first placement groove and cannot move at will, thereby limiting the movable frame 5. When the rotating sleeve 17 is rotated to move the movable frame 18 upward, the limiting frame 21 gradually slides toward the outside of the groove 24, and the spring 25 is relaxed. When the limiting frame 21 slides to the outer end of the groove 24 and cannot slide any further, the squeezing block 23 can only be forced to move upward, and the adjustment device 6 moves upward as a whole. At the same time, due to the supporting effect of the spring 25, the squeezing block 23 is pressed against the inner wall of the first placement groove and cannot move at will, thereby limiting the movable frame 5.

[0043] When the pressure head 8 is squeezed due to the bending of the steel bar 4, the pressure head 8 acts in the opposite direction on the movable frame 5. At this time, the squeezing block 23 slides on the inner wall surface of the first placement groove, and the first placement groove squeezes the squeezing block 23. The end of the squeezing block 23 gradually enters the movable groove 20. While the squeezing block 23 squeezes the spring 25, the end face of the strip groove 24 gradually approaches the end of the limiting frame 21, until the end of the limiting frame 21 fits with the end face of the strip groove 24, the squeezing block 23 can no longer move, and the moving rod 16 can no longer move upward inside the first placement groove, thereby achieving the purpose of limiting the movement of the adjustment device 6, and then achieving the purpose of limiting the movement of the movable frame 5, and limiting the movable frame 5. The cooperation between the limiting frame 21 and the strip groove 24 facilitates limiting the moving distance of the adjustment device 6 inside the first placement groove.

[0044] like Figure 1 and Figure 6As shown, the movable device 9 is arranged in the second placement groove on the upper and lower sides of the outer frame 1, and the movable device 9 includes a pressing plate 26, the pressing plate 26 is inside the second placement groove, and the two side surfaces of the pressing plate 26 are slidingly corresponding to the inner side wall of the second placement groove, the top surface of the pressing plate 26 is set as an inclined surface, and a clamping rod 27 is arranged on the inclined surface, the clamping rod 27 is flush with the inclined surface, and a sliding groove is arranged on the surface of the clamping rod 27; a connecting rod 28 is arranged on the outer side of the pressing plate 26, one end of the connecting rod 28 is slidingly arranged in the sliding groove of the clamping rod 27, and a collar 29 is arranged on the other end of the connecting rod 28, the collar 29 is smoothly sleeved on the outer surface of the limit sleeve 30, and an annular groove is arranged on the outer surface of the limit sleeve 30, and the collar 29 is sleeved in the annular groove to prevent movement. In some embodiments, the clamping rod 27 may not be arranged on the inclined surface of the pressing plate 26, but a sliding groove may be directly opened on the inclined surface of the pressing plate 26, and the clamping rod 27 is arranged only for easy replacement after wear, and the cost is low.

[0045] A threaded section is provided on the surface of the movable frame 5 , the limiting sleeve 30 is threadedly sleeved on the surface of the movable frame 5 , the collar 29 is rotatably connected with the limiting sleeve 30 , and when the limiting sleeve 30 is rotated on the movable frame 5 , the limiting sleeve 30 will drive the collar 29 to move along the movable frame 5 .

[0046] like Figure 1 As shown, the end of the press frame 10 is inside the second placement groove and is fixedly connected to the press plate 26. When the limit sleeve 30 moves on the surface of the threaded section of the movable frame, the limit sleeve 30 drives the connecting rod 28 to move through the collar 29, and the second placement groove prevents the press plate 26 from moving left and right. The end of the connecting rod 28 can slide on the surface of the clamping rod 27, and the inclined slide groove and the sliding cooperation of the connecting rod 28 make the press plate 26 move up and down in the second placement groove, so as to achieve the purpose of adjusting the distance between the press plate 26 and the movable frame 5, and when the press plate 26 moves up and down in the second placement groove, the press plate 26 drives the pressing roller 11 to move up and down in the outer frame 1 through the press frame 10, so as to facilitate the adjustment of the relative distance between the upper and lower pressing rollers 11 according to the diameter of the steel bar 4.

[0047] exist Figure 6 In the embodiment, the limiting sleeve 30 is located outside the outer frame 1, and a threaded section corresponding to the limiting sleeve 30 is provided on the surface of the movable frame 5. The length of the threaded section corresponds to the length of the top slide groove of the pressing plate 6, and the limiting sleeve 30 is threadedly connected with the threaded section. The length of the threaded section limits the moving distance of the limiting sleeve 30, and the threaded section corresponds to the length of the top slide groove of the pressing plate 6, so as to adjust the distance between the pressing plate 26 and the movable frame 5.

[0048] Working principle of the present invention:

[0049] Reference Figure 1 to Figure 6Before curing and straightening the steel bar 4, the entire equipment needs to be adjusted. The distance between the two pressure heads 8 is adjusted according to the diameter of the steel bar 4, and the position of the pressure roller 11 is also adjusted.

[0050] When the movable frame 5 is roughly adjusted, the two nuts 15 are first rotated so that the distance between the two nuts 15 on the surface of the limit rod 14 is adjusted. At this time, the nut 15 on the inner side of the movable frame 5 is used to limit the shortest distance between the movable frame 5 and the outer frame 1, and the nut 15 on the outer side of the movable frame 5 can limit the farthest distance between the movable frame 5 and the outer frame 1. At the same time, the two nuts 15 cooperate to limit the movable frame 5 to the outside of the outer frame 1.

[0051] When the movable frame 5 has a certain amount of movement margin outside the outer frame 1, the movable frame 5 is fine-tuned by the adjusting device 6, and the moving distance of the movable frame 5 is limited, as described above.

[0052] When the bent steel bar 4 enters the outer frame 1 from the feed port 2, the pressure head 8 allows the bent steel bar 4 to enter the semi-cylindrical groove through the inclined notch, and the bent steel bar 4 is initially straightened by the movable effect of the two pressure heads 8 and the movable frame 5. When the steel bar 4 squeezes the pressure head 8 at the top and the movable frame 5 at the top moves up, the movable frame 5 pulls the entire adjustment device 6 upward through the moving rod 16. At this time, the two squeezing blocks 23 approach each other during the upward movement and squeeze the spring 25. The moving distance of the movable frame 5 is limited by the adjustment device 6 and the outer nut 15. The elastic force of the spring 25 and the reaction force provided by the outer nut 15 to the movable frame 5 act on the surface of the steel bar 4 through the pressure head 8, thereby initially straightening the steel bar 4. When the steel bar 4 has no squeezing force on the top pressure head 8, the elastic force of the spring 25 makes the two squeezing blocks 23 move away from each other. At this time, the movable frame 5 gradually descends until the pressure head 8 squeezes the surface of the steel bar 4. When the steel bar 4 squeezes the bottom pressure head 8, the working principle is the same.

[0053] When adjusting the position of the pressure roller 11, the limit sleeve 30 is rotated, and the limit sleeve 30 rotates on the surface of the threaded segment of the movable frame 5. The spiral torque force between the limit sleeve 30 and the threaded segment provides power for the movement of the limit sleeve 30. When the limit sleeve 30 moves on the surface of the threaded segment, the limit sleeve 30 drives the connecting rod 28 to move through the collar 29. The second placement groove prevents the pressure plate 26 from moving left and right and can only move up and down. The end of the connecting rod 28 can slide in the sliding groove on the surface of the clamping rod 27. The distance between the pressure plate 26 and the movable frame 5 is adjusted through the sliding cooperation of the inclined sliding groove and the connecting rod 28. When the diameter of the steel bar 4 is small, it is necessary to reduce the distance between the upper and lower pressing rollers 11. When the limiting sleeve 30 moves to the left, the connecting rod 28 with a limited length pushes the pressing plate 26 gradually away from the movable frame 5. At this time, the distance between the upper and lower pressing rollers 11 gradually decreases until the pressing roller 11 is completely in contact with the surface of the steel bar 4; when the diameter of the steel bar 4 is large, it is necessary to increase the distance between the upper and lower pressing rollers 11. When the limiting sleeve 30 moves to the right, the connecting rod 28 with a limited length pushes the pressing plate 26 gradually close to the movable frame 5. At this time, the distance between the upper and lower pressing rollers 11 gradually increases until the pressing roller 11 is completely in contact with the surface of the steel bar 4, thereby ensuring the adaptation effect between the movable device 9 and the steel bar 4.

[0054] When the two nuts 15 do not limit the movable frame 5, the adjustment device 6 and the movable device 9 are used to fine-tune the pressure head 8 and the pressure roller 11. The cooperation of multiple groups of upper and lower pressure rollers 11 gradually straightens the steel bar 4. The cooperation of the pressure head 8 and the pressure roller 11 can remove the rust of the steel bar 4 during the straightening process to ensure the maintenance effect of the equipment on the steel bar 4.

[0055] When the two nuts 15 limit the movable frame 5, the pressure head 8 and the pressure roller 11 will not shake up and down during the process of squeezing the steel bar 4. The two pressure heads 8 initially straighten the steel bar 4 through the semi-cylindrical groove, and then cooperate with multiple upper and lower pressure rollers 11 to achieve the purpose of straightening the steel bar 4.

[0056] When straightening the steel bars 4, the grinding blocks 12 can be fixed on the feed port 2 and the discharge port 3. Grinding blocks 12 with different inner arc radii can be selected according to the diameter of the steel bars 4. Multiple grinding blocks 12 can be spliced ​​together to facilitate adaptation to steel bars 4 of different diameters. The grinding blocks 12 are used to increase the rust removal effect of the entire equipment on the steel bars 4.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein, and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel bar maintenance and straightening machine for engineering, characterized by: The outer frame (1) comprises an outer frame (1), wherein one side of the outer frame (1) is provided with a feed inlet (2), and the other side of the outer frame (1) is provided with a discharge port (3), wherein the feed inlet (2) and the discharge port (3) are both located on the horizontal center line of the outer frame (1), and a steel bar (4) is provided on the horizontal center line of the outer frame (1), and the steel bar (4) passes through the feed inlet (2) and the discharge port (3); The outer frame (1) is provided with a movable frame (5) at the top and bottom, the movable frame (5) is arranged parallel to the horizontal center line of the outer frame (1), an adjustment device (6) is arranged between the movable frame (5) and the outer frame (1), and the adjustment device (6) is located in a first placement groove on the side of the outer frame (1); and the movable frame (5) is provided with a pressure rod (7) facing the inner side of the outer frame (1), one end of the pressure rod (7) is arranged as a whole with the movable frame (5), and the other end is provided with a pressure head (8), the upper and lower pressure heads (8) are opposite to each other, and the pressure head (8) is in contact with the surface of the steel bar (4); A movable device (9) is also provided between the movable frame (5) and the outer frame (1), the movable device (9) being located in a second placement groove on the side of the outer frame (1), a pressing frame (10) being provided inside the outer frame (1), one end of the pressing frame (10) being fixedly connected to the movable device (9), and the other end of the pressing frame (10) being provided with a pressing roller (11), the upper and lower pressing rollers (11) being opposite to each other, and the pressing roller (11) being in contact with the surface of the steel bar (4); The adjustment device (6) comprises a moving rod (16), one end of which is fixedly connected to the inner side of the movable frame (5), and the other end of which is placed in the first placement groove; an annular groove is provided on the surface of the moving rod (16), a rotating sleeve (17) is movably sleeved in the annular groove, a sliding groove (19) is provided inside the moving rod (16), a moving frame (18) is provided inside the rotating sleeve (17), the moving frame (18) is threadedly connected to the rotating sleeve (17), and an end of the moving frame (18) is slidably arranged in the sliding groove (19); Furthermore, a movable groove (20) is provided inside the end of the movable rod (16) away from the movable frame (5), and a partition frame is provided at the center of the movable groove (20). A limit frame (21) and a rotating rod (22) are provided inside the movable groove (20). The rotating rod (22) is adjacent to the partition frame. One end of the rotating rod (22) is hinged to the limit frame (21), and the other end is hinged to the end of the movable frame (18). The other end of the limiting frame (21) is provided with an extrusion block (23), one end of the extrusion block (23) is located inside the movable groove (20), and the other end is in sliding contact with the inner wall of the first placement groove, the inside of the extrusion block (23) is provided with a strip groove (24) corresponding to the end of the limiting frame (21), and a spring (25) is sleeved on the surface of the extrusion block (23), and the spring (25) is located between the outer side of the moving rod (16) and the end of the extrusion block (23); the end of the limiting frame (21) is slidably arranged in the strip groove (24) and moves the spring (25); The limiting frame (21) and the rotating rod (22) are symmetrically arranged on both sides of the partition frame; the outer side surface of the extrusion block (23) and the inner side surface of the first placement groove are inclined surfaces corresponding to each other.

2. The engineering steel bar curing and straightening integrated machine according to claim 1, characterized in that: The cross-sectional shape of the pressure head (8) along the length direction of the steel bar is a right-angled trapezoid, and a side of the pressure head (8) close to the feed port (2) is arranged as an inner inclined surface; A semi-cylindrical groove is provided on a side of the pressing head (8) opposite to the steel bar (4), the semi-cylindrical groove corresponds to and matches the circumferential side surface of the steel bar (4), the steel bar (4) is in sliding contact with the pressing head (8) through the semi-cylindrical groove, and the upper and lower pressing heads (8) correspondingly buckle the steel bars (4) through the semi-cylindrical groove; The outer side of the pressure head (8) is fixedly connected to the end of the pressure rod (7) via a screw.

3. The engineering steel bar curing and straightening integrated machine according to claim 1 is characterized in that: A grinding block (12) is provided at both the feed port (2) and the discharge port (3); the inner edge of the grinding block (12) corresponds to and matches the shape of the feed port (2) and the discharge port (3); a plurality of grinding blocks (12) enclose an opening having the same shape as the feed port (2) and the discharge port (3); a convex plate (13) is provided on the outer side of the grinding block (12); the convex plate (13) is fixedly connected to the end face of the outer frame (1).

4. The engineering steel bar curing and straightening integrated machine according to claim 1, characterized in that: Limiting rods (14) are provided at both ends of the top and bottom of the outer frame (1), the ends of the limiting rods (14) are fixedly connected to the outer frame (1), and two nuts (15) are sleeved on the surface of the limiting rods (14), the limiting rods (14) pass through the ends of both ends of the movable frame (5), and the two nuts (15) are respectively located on the inner side and the outer side of the movable frame (5).

5. The engineering steel bar curing and straightening integrated machine according to claim 1, characterized in that: The movable device (9) comprises a pressing plate (26), the pressing plate (26) is located inside the second placement groove, and the two side surfaces of the pressing plate (26) are in sliding contact with the inner wall of the second placement groove, the top of the pressing plate (26) is provided with an inclined sliding groove, the outer side of the pressing plate (26) is provided with a connecting rod (28), one end of the connecting rod (28) is slidably arranged in the sliding groove, and the other end of the connecting rod (28) is provided with a collar (29), the inner side of the collar (29) is movably sleeved with a limiting sleeve (30), and the limiting sleeve (30) is threadedly sleeved on the surface of the movable frame (5); The end of the pressing frame (10) passes through the interior of the second placement groove, and the pressing frame (10) is fixedly connected to the bottom of the pressing plate (26).

6. The engineering steel bar curing and straightening integrated machine according to claim 5, characterized in that: The surface of the movable frame (5) is provided with a thread segment corresponding to and matching the limiting sleeve (30), and the length of the thread segment corresponds to the length of the sliding groove.

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