A steel bar straightening structure and straightening method for assembled building

Abstract

The present invention provides a steel bar straightening structure and a straightening method for prefabricated buildings, and belongs to the technical field of building construction. The technical scheme is as follows: it includes a feeding mechanism, a wire rod steel bar is arranged on the feeding mechanism, the feeding mechanism rotates to drive the wire rod steel bar to rotate, the feeding mechanism opens and closes to prevent the wire rod steel bar from being scattered, a wire pressing mechanism is arranged on one side of the feeding mechanism, the wire pressing mechanism is used to prevent the wire rod steel bar from being in a spiral state after being pulled out, a straightening mechanism is arranged on one side of the wire pressing mechanism, the straightening mechanism is used to straighten the steel bar, and a cutting mechanism is arranged on the straightening mechanism, and the cutting mechanism cuts the straightened steel bar. The beneficial effects of the present invention are: it is not necessary to manually make a circular motion around the wire rod steel bar to pay out the wire, which solves the technical problem that the wire rod steel bar swings left and right when paying out the wire, and solves the technical problem that the steel bar needs to be continuously adjusted by humans to feed the steel bar into the straightening device.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a steel bar straightening structure and a straightening method for prefabricated buildings. Background Art

[0002] Prefabricated construction refers to the process of assembling parts in accordance with specified technical requirements and debugging and testing them to make them qualified products. Simply put, it is the process of assembling parts into a whole.

[0003] At present, in the construction of prefabricated buildings, steel bars are usually required as the skeleton of cement components, so the wire rod-shaped steel bars must be straightened. The existing steel bar straightening method is to first use manual methods to pull the wire rod-shaped steel bars to a certain distance. Since the initial state of the steel bars is circular, during this process, workers need to continuously rotate the steel bars to lay out the steel bars, and then extend one end of the steel bars into the straightening device for straightening. There are several disadvantages in manually laying out the wire rod steel bars: first, manually laying out the wire rod steel bars is labor-intensive and has low laying efficiency; second, the wire rod steel bars are placed on the ground, and the center of the wire rod steel bars is empty. When laying out the wire rods manually, it is necessary to lay out the wire rods in a circular motion around the wire rod steel bars, which increases the labor intensity.

[0004] Although there are devices for discharging wire rods on the market, for example, the Chinese invention with application number 200510037453.2 and titled "A Steel Bar Straightening and Cutting Machine" discloses that the wire rods are placed on a discharging device, wherein the discharging device is a turntable, which rotates while straightening the steel bars. Although this patent solves the technical problem of manually discharging the wire rods in a circular motion, the diameter of the discharging device in this public document cannot be adjusted, and cannot adapt to the discharging of wire rods of different diameters, which will cause the wire rods to swing left and right when discharging.

[0005] In order to solve the technical problem of left-right swing of the steel wire rod during wire laying, the Chinese utility model patent with the authorization announcement number CN204022082U and the name of "A cold-rolled ribbed steel wire rod laying mechanism" discloses that in order to make the left support rod and the right support rod contact the inner side walls of the steel wire rod on both sides to prevent it from swinging left and right during stretching, the left support rod and the right support rod are equal in length and symmetrically arranged below the guide rod. Although the public patent can solve the technical problem of left-right swing of the steel wire rod during stretching, the public patent sets the cold-rolled ribbed steel wire rod on the guide rod, and then the stretched end of the cold-rolled ribbed steel wire rod faces the unfolding direction and passes through the guide ring for stretching. Since the steel bar is circular in the initial state, only one guide ring is used. After the steel bar is pulled out, the pulled steel bar is still spiral, and manual continuous adjustment is required to feed the steel bar into the straightening device;

[0006] In order to solve the technical problem that the steel bars need to be constantly adjusted manually before they can be fed into the straightening device, the Chinese invention patent with the authorization announcement number CN103658455B and the name "Steel Bar Straightening Device" discloses that a clamping and straightening mechanism is provided at the other end of the frame body, which can clamp and fix the other end of the steel bar on the one hand, and drag and straighten the steel bar on the other hand. The patent adopts a clamping and stretching mechanism, which can solve the technical problem that the steel bars need to be constantly adjusted manually before they can be fed into the straightening device. However, the patent also has a first clamping mechanism at the other end of the frame body. When the steel bars are straightened, the first clamping mechanism needs to be constantly loosened or clamped, and the operation is relatively cumbersome.

[0007] Application Contents

[0008] The purpose of the present application is to provide a steel bar straightening structure and straightening method for prefabricated buildings, so as to solve the technical problems that manual laying out requires circular movement around the steel bar wire, which increases the labor intensity, causes the steel bar wire to swing left and right, and requires manual continuous adjustment to feed the steel bar into the straightening device.

[0009] This application is achieved through the following measures:

[0010] A steel bar straightening structure for assembled buildings, comprising a feeding mechanism, on which a wire rod steel bar is arranged, the feeding mechanism has two working states: rotation and opening and closing, the feeding mechanism rotates to drive the wire rod steel bar to rotate, the feeding mechanism opens and closes to prevent the wire rod steel bar from being scattered, a wire pressing mechanism is arranged on one side of the feeding mechanism, the wire pressing mechanism is arranged to prevent the wire rod steel bar from being in a spiral state after being pulled out, a straightening mechanism is arranged on one side of the wire pressing mechanism, the straightening mechanism is arranged to straighten the steel bar, the straightening mechanism is arranged to cut the straightened steel bar;

[0011] The material discharging mechanism comprises a frame, an upper top plate is arranged on the upper end surface of the frame, a turntable is arranged on the upper top plate, the turntable rotates relative to the upper top plate, an opening and closing mechanism is arranged on the turntable, the opening and closing mechanism comprises a fixed frame, a gear transmission assembly is arranged at the bottom of the fixed frame, a sliding block is arranged on the fixed frame, a support rod is arranged on the sliding block, and the gear transmission assembly drives the sliding block to move, thereby controlling the opening and closing of the support rod;

[0012] The wire pressing mechanism includes a lifting component, which is lifted and lowered according to the height of the wire rod steel bar, a guide ring group is arranged on the lifting component, and the guide ring group is used to prevent the wire rod steel bar from being in a spiral state after being stretched, a wire pressing component is arranged on one side of the guide ring group, and the wire pressing component further prevents the wire rod steel bar from being in a spiral state, and a hammering mechanism is arranged on one side of the wire pressing component, and the hammering mechanism locally hammers the stretched steel bar;

[0013] The straightening mechanism comprises a bracket, an upper pressing roller and a lower pressing roller are arranged on the bracket, a belt transmission mechanism and an intermittent mechanism are arranged on one side of the bracket, one end of the intermittent mechanism is connected to the upper pressing roller, and the other end is connected to the belt transmission mechanism, the belt transmission mechanism drives the intermittent mechanism to rotate, and then controls the rotation of the upper pressing roller;

[0014] The cutting mechanism comprises a support, a cutting knife is arranged on the support, one end of the cutting knife head is arranged on the upper part of the steel bar, and a toggle assembly is arranged on the handle of the cutting knife, and the toggle assembly controls the cutting knife to cut the steel bar.

[0015] The beneficial effects of the present application are as follows: the feeding mechanism supports the wire rod steel bar, and the wire rod steel bar is arranged on the feeding mechanism, so that the wire rod can be rotated, and there is no need for manual circular motion around the wire rod steel bar to feed the wire, and the feeding mechanism can be opened and closed to ensure that the inner side surface of the wire rod steel bar is in contact with the outer side surface of the support rod, which can effectively prevent the wire rod from being scattered, and solves the technical problem that the wire rod steel bar swings left and right during feeding. The wire pressing mechanism is realized by a guide ring group and a wire pressing assembly, wherein the height of the guide ring group is gradually reduced, and finally the steel bar is limited by the wire pressing wheel and the upper table plate, which can effectively prevent the wire rod steel bar from remaining in a spiral state after feeding. There is no need for manual continuous adjustment to feed the steel bar into the straightening device, and the straightening mechanism straightens the steel bar, and the straightening is achieved by the cooperation of the upper pressing roller and the lower pressing roller, and the steel bar is driven to move toward the cutting mechanism by friction, and the cutting mechanism moves with the movement of the straightening mechanism, and the steel bar can be cut without additional drive, the operation is relatively simple, and electric energy is saved. The frame has the function of bearing weight, the function of the upper top plate is to install the turntable and realize the rotation function of the discharge mechanism, and the function of the fixed frame is to fix the gear transmission assembly. The gear transmission assembly has high transmission accuracy, and the gear transmission is relatively accurate and efficient. The gear transmission assembly can simultaneously drive the support rods in different directions to gather toward the center of the turntable or move away from the center of the turntable at the same time. The function of the lifting assembly is to ensure that the guide ring group and the wire rod steel bar are at the same horizontal position, and to ensure that the end of the wire rod steel bar is pulled out horizontally. The height of the guide ring group is gradually reduced, the purpose is to press down the stretched wire rod steel bar, and finally it is restricted by the upper plate and the pressing wheel, which can effectively prevent the stretched steel bar from being in a spiral state, laying the foundation for entering the straightening mechanism. The hammering mechanism hammers the stretched steel bar, which can effectively remove stains on the surface of the steel bar and can correct the partially twisted steel bar in a straight line. The function of the bracket is to install the upper and lower rollers. The upper roller rotates to match the lower roller to give the steel bar a friction force. The steel bar is pulled under the action of the friction force. No traction power source is required, saving electricity. The belt drive mechanism can be used for transmission with a large center distance between the two axes. The belt is elastic and can alleviate impact and vibration loads. When overloaded, the belt will slip on the wheel to prevent damage to other parts. The intermittent mechanism has a simple structure and reliable operation. There is no rigid impact when the cylindrical pin enters the slot, and the movement is relatively smooth. The cutting knife realizes the cutting of the steel bar. The toggle assembly uses the same power source as the belt drive mechanism and the intermittent mechanism. The cutting mechanism does not require an additional power source, saving electricity.

[0016] Furthermore, an axial hole is provided in the middle position of the upper top plate, a rotating shaft is provided in the axial hole, the rotating shaft passes through the upper top plate, one end is provided at the bottom of the upper top plate, and the other end is provided at the top of the upper top plate, a motor A is provided on the rotating shaft provided at the bottom of the upper top plate, the turntable is provided on the rotating shaft provided at the top of the upper top plate, a bull's eye is provided between the turntable and the upper top plate, the bottom of the bull's eye is fixedly connected to the upper end surface of the upper top plate, and the sphere of the bull's eye is connected to the bottom surface of the turntable.

[0017] The above further beneficial effects are as follows: the shaft hole is provided on the upper top plate for installing the rotating shaft, which transmits the constant power source provided by the motor A to the turntable, and the output shaft of the motor A rotates through the rotating shaft to drive the turntable to rotate, and the function of the bull's eye is to reduce the friction between the turntable and the upper top plate.

[0018] Furthermore, the gear transmission assembly includes a bevel gear A and a bevel gear B. A base is provided on the upper end surface of the turntable, and a main shaft is provided on the base. The main shaft passes through the base, and one end extends to the outside of the base to form an extension part A. The extension part A is provided with a motor B, and the other end extends to the inside of the base to form an extension part B. The extension part B is provided with the bevel gear A. The fixed frame includes an upper end and a lower end. A support leg is provided at the lower end of the fixed frame, and the support leg is fixedly connected to the upper end surface of the turntable. The upper end of the fixed frame includes a circular ring and a circular plate. A limiting groove is provided on the inner side of the circular ring, and the bevel gear B is provided in the limiting groove. The bevel gear B is meshed with the bevel gear A. A vortex boss is provided on the back side of the bevel gear B. A guide groove is provided on the circular plate of the fixed frame, and the sliding block is provided in the guide groove. A rack is provided at the bottom of the sliding block, and the rack is meshed with the vortex boss.

[0019] The above further beneficial effects are as follows: the base is used to install the main shaft, the main shaft is used to install the bevel gear A, the motor B provides a constant power source for the rotation of the bevel gear A, the fixed frame is fixedly connected to the turntable, the fixed frame is used to provide a stable installation position for the bevel gear B, and on the other hand, it is used to install the sliding block and limit the motion trajectory of the sliding block, the vortex boss cooperates with the rack, and can effectively drive the sliding block to move in the limiting groove.

[0020] Furthermore, the lifting assembly includes a support frame, the support frame includes a bottom cross frame and a vertical frame, the vertical frame is vertically fixedly connected to the bottom cross frame, the vertical frame includes an upper frame and a lower frame, a screw rod is provided through the upper frame and the lower frame of the vertical frame, a bevel gear C is provided at the lower end of the screw rod, a sleeve is provided in the gear hole of the bevel gear C, an internal thread corresponding to the external thread of the screw rod is provided in the sleeve, a base is provided on the bottom cross frame, a transmission shaft is provided through the base, a motor C is provided at one end of the transmission shaft, and a bevel gear D is provided at the other end , the bevel gear D is meshed with the bevel gear C, the upper frame of the vertical frame is provided with guide rods, the guide rods are arranged on both sides of the screw rod, a lifting plate is arranged on the screw rod of the upper frame, a lifting frame is arranged on the lifting plate, the lifting frame includes a bottom plate, a vertical plate and an upper platen, the upper end surface of the bottom plate is fixedly connected with the lower end surface of the lifting plate, the vertical plates are arranged on both sides of the lifting plate, the upper platen is arranged at the upper end of the upper frame of the vertical frame, and the upper end surface of the upper platen is provided with the guide ring group, the wire pressing assembly and the hammering mechanism.

[0021] The above further beneficial effects are as follows: the support frame has a load-bearing function, the bottom cross frame provides an installation position for the vertical frame, the purpose of the bottom cross frame is to install the motor C, the transmission shaft and the bevel gear D, the motor C provides a constant power source for the rotation of the transmission shaft, the transmission shaft rotates to drive the bevel gear D to rotate, the bevel gear D engages with the bevel gear C, and can change the direction of movement to achieve a 90° change in the direction of movement, the rotation of the bevel gear C drives the screw rod to rotate through the sleeve, and the rotation of the screw rod drives the lifting and lowering of the lifting plate, thereby controlling the height of the upper platen, wherein the guide rod has the function of guiding and limiting, and the function of the upper platen is to install the guide ring group, the wire pressing assembly and the hammering mechanism.

[0022] Furthermore, the guide ring group includes five guide rings arranged in a linear array, each guide ring includes a vertical pole portion and a circular ring portion arranged at the upper end of the vertical pole portion, the heights of the vertical pole portions of the five guide rings are gradually reduced, thereby driving the center height of each circular ring portion to gradually reduce, and the wire crimping assembly includes a fixed seat, a wire crimping wheel is arranged on the fixed seat, and the wire crimping wheel is mounted on the fixed seat, and the height of the axis of the wire crimping wheel relative to the ground is less than the height of the axis of the lowest circular ring portion relative to the ground.

[0023] The above further beneficial effect is achieved as follows: the heights of the uprights of the five guide rings are gradually reduced, thereby driving the center height of each circular ring portion to gradually reduce, with the purpose of pressing down the pulled wire rod steel bars, which are eventually limited by the pressing wheel and the upper platen to prevent the pulled steel bars from being in a spiral state.

[0024] Furthermore, the hammering mechanism includes a lead-in part and a hammering part, the lead-in part includes a receiving frame, the receiving frame is provided with a wire tube, the outer circumference of the wire tube is provided with a long through hole, one end of the wire tube is provided with a driven gear, the driven gear is provided on the outer side of the receiving frame, one side of the receiving frame is provided with a gear seat, a gear shaft is provided in the gear seat, one end of the gear shaft is provided with a motor D, and the other end is provided with a driving gear, the driving gear is meshed with the driven gear, the hammering part includes a base plate, the base plate is provided with a motor E, the front side of the motor E is provided with a rotating wheel, the rotating wheel includes a A wheel disc is provided, and fixed shafts are provided on both sides of the wheel disc, one of the fixed shafts is connected to the output shaft of the motor E, and the fixed shafts on both sides of the wheel disc are mounted on a support seat, and a pin is provided at one end of the wheel disc, and the circumferential array of the pins is on the outside of the fixed shaft on one side, and a hinge seat is provided on one side of the rotating wheel, and a linkage rod is provided on the hinge seat, and the linkage rod includes two end portions and a middle portion, one end of the linkage rod is connected to the pin, and the middle portion of the linkage rod is pivotally connected to the hinge seat, and a weight is provided at the other end of the linkage rod, and the weight corresponds to the long through hole on the outer circumference of the wire tube.

[0025] The above further beneficial effects are as follows: the function of the lead-in part is to locally limit the steel bars that have undergone local bending and deformation, the function of the receiving frame is to set up the wire barrel, the function of the wire barrel is to limit the steel bars that have undergone local deformation or the steel bars that have local stains, the long through hole corresponds to the weight, ensuring that the force of the weight cone acts directly on the steel bars, the driven gear cooperates with the driving gear, the purpose is to rotate the twisted and deformed steel bars, here because the front end is limited by the wire pressing assembly, therefore, the wire barrel can only rotate at a very small angle, the motor D provides a constant power source for the rotation of the wire barrel, the base plate has a bottoming effect, and provides an installation skeleton for the installation of the hammering part, and the function of the motor E is also to provide a constant power source, wherein the rotating wheel rotates, and the pin on the rotating wheel acts on one end of the linkage rod, the hinged seat acts as a fulcrum, the rotating wheel rotates, and the pin on it presses down one end of the linkage rod, causing the other end of the linkage rod to be raised or lowered, and finally the weight is raised or lowered.

[0026] Furthermore, the straightening mechanism is arranged on the load-bearing frame, the bracket is arranged on the upper end surface of the load-bearing frame, the gap between the upper pressure roller and the lower pressure roller is equal to the diameter of the steel bar, the intermittent mechanism includes an active fork and a driven fork, the driven fork is arranged on the upper pressure roller, a portal frame A is arranged on one side of the load-bearing frame, a linkage shaft is arranged on the portal frame A, the active fork is arranged at one end of the linkage shaft, a roller shaft hole is arranged in the middle position of the driven fork, arc plates are evenly arranged on the circumference of the driven fork, slots are formed between adjacent arc plates, arc wings are evenly arranged on the circumference of the active fork, a shift fork is arranged between adjacent arc wings, a cylindrical pin is arranged on the shift fork, the cylindrical pin is arranged in the slot, the arc wing is tangent to the arc plate, a linkage shaft hole is arranged in the middle of the active fork, and a The linkage shaft is arranged, the belt transmission mechanism includes a driving wheel, a driven wheel and a synchronous belt, a support plate is arranged on one side of the load-bearing frame, a driving shaft is arranged on the support plate, the driving wheel is arranged on the driving shaft, the driven wheel is arranged on the linkage shaft, the synchronous belt is wound around the driving wheel and the driven wheel, a bracket is arranged on the load-bearing frame, the bracket is used to support the straightened steel bars, the toggle assembly includes a toggle plate, the driving shaft passes through the support plate, a motor F is arranged at one end, the toggle plate is arranged at the other end, a toggle pin is arranged on the toggle plate, a toggle line is arranged at the handle of the cutting knife, the toggle line is arranged between the handle of the cutting knife and the toggle pin, a spring is also arranged at the handle of the cutting knife, one end of the spring is fixedly connected to the handle of the cutting knife, and the other end is fixedly connected to the load-bearing frame.

[0027] The above further beneficial effects are as follows: the load-bearing frame has the functions of lifting and fixing. The lifting function is to keep the straightening mechanism and the wire pressing assembly in the same horizontal position, and the fixing function is to install the straightening mechanism. The bracket is used to install the upper pressing roller and the lower pressing roller, as well as the driven fork. The height of the gap between the upper pressing roller and the lower pressing roller is equal to the length of the diameter of the steel bar, which is convenient for the steel bar to pass through. The steel bar is driven by friction to be pulled, and the active fork rotates to drive the driven fork to rotate, thereby driving the upper pressing roller to rotate. The function of the intermittent mechanism is to make the movement relatively smooth. The function of the bracket is to support the straightened steel bar. The function of the toggle wire is to lift or lower the handle of the cutting knife, and the spring has a reset function.

[0028] A method for straightening a steel bar straightening structure for an assembled building, comprising the following steps:

[0029] Step 1: Place the wire rod on the support rod of the discharge mechanism, start motor B, and the support rod moves with the movement of the sliding block until the outer side of the support rod fits the inner side of the wire rod, and then turn off motor B;

[0030] Step 2: Start motor A to rotate the turntable and start laying out the wire rod steel bars, start motor C to adjust the height of the lifting plate, and then control the height of the upper plate to be consistent with the height of the wire rod steel bars, and turn off motor C;

[0031] Step 3: Pass the end of the wire rod through the guide ring group and the bottom of the wire pressing wheel into the wire tube, and then pass it between the upper pressing roller and the lower pressing roller from the wire tube;

[0032] Step 4: Start the motor D to make the wire barrel do circular motion, and drive the local steel bars in the wire barrel to rotate through the wire barrel;

[0033] Step 5: Start the motor E, and the motor E drives the heavy hammer to hit the steel bars in the wire tube through the long through hole until the steel bars in the wire tube are in a straight line state, and then turn off the motor E and the motor D;

[0034] Step 6: Start the motor D, make the motor D rotate in the reverse direction, restore the steel bar in the wire barrel to the initial state, and turn off the motor D;

[0035] Step seven: start the motor F, the motor F rotates through the synchronous belt to drive the upper pressure roller to rotate, and under the cooperation of the upper pressure roller and the lower pressure roller, the friction force drives the steel bar to move to the cutting mechanism;

[0036] Step 8: As the motor F rotates, the toggle pin is driven to rotate, and the toggle wire rotates along with the toggle pin, thereby driving the handle of the cutting knife to be lifted or pressed down, so that the blade of the cutting knife is pressed down or lifted, thereby realizing the cutting process of the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of this application.

[0038] Figure 2 It is a structural diagram of the discharge mechanism.

[0039] Figure 3 It is a structural schematic diagram of the unloading mechanism in the rotating state.

[0040] Figure 4 It is a structural schematic diagram of the opening and closing mechanism in the unloading mechanism.

[0041] Figure 5 A schematic diagram of the structure of the fixing frame.

[0042] Figure 6 It is a structural schematic diagram of the opening and closing mechanism after removing the fixing frame.

[0043] Figure 7 It is a structural diagram of the coordination between the unloading mechanism and the wire pressing mechanism.

[0044] Figure 8It is a schematic diagram of the mechanism of the lifting component.

[0045] Fig. 9 Schematic diagram of the structure after the lifting assembly is added with the lifting frame.

[0046] Fig.10 It is a schematic diagram of the structure of the cooperation between the wire crimping assembly and the guide ring assembly.

[0047] Fig.11 It is a structural schematic diagram of the cooperation among the wire crimping assembly, the guide ring assembly and the hammering mechanism.

[0048] Fig.12 It is a schematic diagram of the structure of the lead part.

[0049] Fig.13 It is a structural diagram of the beating part.

[0050] Fig.14 It is a structural schematic diagram of the coordination between the straightening mechanism and the cutting mechanism.

[0051] Fig.15 It is a structural schematic diagram of the active fork.

[0052] Fig.16 It is a structural schematic diagram of the driven fork.

[0053] Fig.17 It is a structural diagram of the cutting mechanism.

[0054] Fig.18 for Fig.17 A partial enlarged view of point A.

[0055] Among them, the accompanying drawings are marked as follows: 1, discharge mechanism; 11, frame; 12, upper top plate; 13, turntable; 14, opening and closing mechanism; 141, fixed frame; 1411, support leg; 1412, ring; 14121, limit groove; 1413, round plate; 14131, guide groove; 142, gear transmission assembly; 1421, bevel gear A; 1422, bevel gear B; 14221, vortex boss; 143, sliding block; 1431, rack; 144, support rod; 15, rotating shaft; 17 , bull's eye; 18, base; 19, spindle; 2, wire rod; 3, wire pressing mechanism; 31, lifting assembly; 311, support frame; 3111, bottom horizontal frame; 31111, base; 3112, vertical frame; 31121, guide rod; 32, guide ring assembly; 321, guide ring; 33, wire pressing assembly; 331, fixed seat; 332, wire pressing wheel; 34, hammering mechanism; 341, lead wire; 3411, receiving frame; 3412, wire barrel; 3413, driven gear; 3 414, driving gear; 342, hammering part; 3421, base plate; 3423, rotating wheel; 34231, wheel plate; 3424, linkage rod; 3425, heavy hammer; 35, screw rod; 36, bevel gear C; 37, sleeve; 38, transmission shaft; 39, bevel gear D; 310, lifting plate; 312, lifting frame; 3121, bottom plate; 3122, vertical plate; 3123, upper plate; 4, straightening mechanism; 41, bracket; 42, upper pressure roller; 43, lower pressure roller; 44, belt transmission driving mechanism; 441, driving wheel; 442, driven wheel; 443, synchronous belt; 444, driving shaft; 45, intermittent mechanism; 451, active fork; 4511, arc wing; 4512, shift fork; 45121, cylindrical pin; 452, driven fork; 4521, arc plate; 4522, slot; 46, bracket; 5, cutting mechanism; 51, pillar; 52, cutting knife; 53, toggle assembly; 531, toggle plate; 532, toggle pin; 533, toggle wire; 534, spring. DETAILED DESCRIPTION

[0056] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0057] See also Figures 1 to 3 The present application is a steel bar straightening structure for assembled buildings, including a discharge mechanism 1, on which a wire rod steel bar 2 is arranged. The discharge mechanism 1 has two working states: rotation and opening and closing. The discharge mechanism 1 rotates to drive the wire rod steel bar 2 to rotate.

[0058] The discharge mechanism 1 includes a frame 11, an upper plate 12 is provided on the upper end surface of the frame 11, a turntable 13 is provided on the upper plate 12, the turntable 13 rotates relative to the upper plate 12, an axial hole is provided at the middle position of the upper plate 12, a rotating shaft 15 is provided in the axial hole, the rotating shaft 15 passes through the upper plate 12, one end is provided at the bottom of the upper plate 12, and the other end is provided at the top of the upper plate 12, a motor A is provided on the rotating shaft 15 provided at the bottom of the upper plate 12, a turntable 13 is provided on the rotating shaft provided at the top of the upper plate 12, a bull's eye 17 is provided between the turntable 13 and the upper plate 12, the bottom of the bull's eye 17 is fixedly connected to the upper end surface of the upper plate 12, and the sphere of the bull's eye 17 is connected to the bottom surface of the turntable 13.

[0059] The working principle of the unloading mechanism in the present application is as follows: start the motor A, the output shaft of the motor A rotates to drive the rotating shaft to rotate, and because the turntable is set on the rotating shaft, the turntable also rotates with the rotating shaft. In order to reduce the friction between the turntable and the upper top plate, a bull's eye is set between the turntable and the upper top plate.

[0060] See also Figure 4-Figure 6 : The opening and closing of the discharge mechanism 1 is used to prevent the wire rod steel bar 2 from falling apart. The turntable 13 is provided with an opening and closing mechanism 14, which includes a fixed frame 141. A gear transmission assembly 142 is provided at the bottom of the fixed frame 141. The gear transmission assembly 142 includes a bevel gear A1421 and a bevel gear B1422. The upper end surface of the turntable 13 is provided with a base 18, and a main shaft 19 is provided on the base 18. The main shaft 19 passes through the base 18, and one end extends to the outside of the base 18 to form an extension A, and the extension A is provided with a motor B, and the other end extends to the inside of the base 18 to form an extension B, and the extension B is provided with a bevel gear A1421. The fixed frame 141 includes an upper end and a lower end, and the fixed frame A support leg 1411 is provided at the lower end of 141, and the support leg is fixedly connected to the upper end surface of the turntable 13. The upper end of the fixed frame 141 includes a circular ring 1412 and a circular plate 1413. A limiting groove 14121 is provided on the inner side of the circular ring 1412, and a bevel gear B1422 is provided in the limiting groove 14121. The bevel gear B1422 is meshed with the bevel gear A1421. A vortex boss 14221 is provided on the back of the bevel gear B1422. A guide groove 14131 is provided on the circular plate 1413 of the fixed frame 141, and a sliding block 143 is provided in the guide groove 14131. A rack 1431 is provided at the bottom of the sliding block 143, and the rack 1431 is meshed with the vortex boss 14221. The fixed frame 141 is provided with a sliding block 143, and the sliding block 143 is provided with a support rod 144. The gear transmission assembly 142 drives the sliding block 143 to move, thereby controlling the opening and closing of the support rod 144.

[0061] The working principle of the opening and closing mechanism of the discharge mechanism in the present application is as follows: start the motor B, the rotation of the motor B drives the main shaft to rotate, the rotation of the main shaft drives the bevel gear A to rotate, and because the bevel gear A is meshed with the bevel gear B, the bevel gear B is rotating, and therefore a vortex boss is set on the back of the bevel gear B, the vortex boss is meshed with the rack at the bottom of the sliding block, so the rotation of the bevel gear B drives the vortex boss to rotate, and the rotation of the vortex boss drives the rack to move forward or backward along the limit groove, and finally drives the support rod on the sliding block to move forward or backward along the limit groove synchronously, when the support rods synchronously gather toward the center of the turntable, the diameter of the circle surrounded by the support rods becomes smaller, which is suitable for small diameter wire rods, and when the support rods synchronously move away from the center of the turntable, the diameter of the circle surrounded by the support rods becomes larger, which is suitable for large diameter wire rods. The function of the support rod in the present application is to support the wire rod to prevent the wire rod steel bars from falling apart and causing steel bars to be entangled.

[0062] A wire pressing mechanism 3 is provided on one side of the unwinding mechanism 1, and the wire pressing mechanism 3 is used to prevent the wire rod reinforcement 2 from remaining in a spiral state after being pulled out.

[0063] See also Figure 7-Figure 9 : The wire pressing mechanism 3 includes a lifting component 31, which is lifted and lowered according to the height of the wire rod steel bar 2. A guide ring group 32 is provided on the lifting component 31. The guide ring group 32 is used to prevent the wire rod steel bar from being in a spiral state after being stretched. A wire pressing component 33 is provided on one side of the guide ring group 32. The wire pressing component 33 further prevents the wire rod steel bar from being in a spiral state. A hammering mechanism 34 is provided on one side of the wire pressing component 33. The hammering mechanism 34 locally hammers the stretched steel bar;

[0064] The lifting assembly 31 includes a support frame 311, and the support frame 311 includes a bottom cross frame 3111 and a vertical frame 3112. The vertical frame 3112 is vertically fixedly connected to the bottom cross frame 3111. The vertical frame 3112 includes an upper frame and a lower frame. A screw rod 35 is provided through the upper frame and the lower frame of the vertical frame 3112. A bevel gear C36 is provided at the lower end of the screw rod 35. A sleeve 37 is provided in the gear hole of the bevel gear C36. An internal thread corresponding to the external thread of the screw rod 35 is provided in the sleeve 37. A base 31111 is provided on the bottom cross frame 3111. A transmission shaft 38 is provided through the base 31111. A motor C is provided at one end of the transmission shaft 38, and a bevel gear D39 is provided at the other end. Wheel D39 meshes with bevel gear C36, and the upper frame of the vertical frame 3112 is provided with guide rods 31121, and the guide rods 31121 are arranged on both sides of the screw rod 35, and a lifting plate 310 is arranged on the screw rod 35 of the upper frame, and a lifting frame 312 is arranged on the lifting plate 310, and the lifting frame 312 includes a bottom plate 3121, a vertical plate 3122 and an upper platen 3123, and the upper end surface of the bottom plate 3121 is fixedly connected to the lower end surface of the lifting plate 310, the vertical plate 3122 is arranged on both sides of the lifting plate 310, and the upper platen 3123 is arranged at the upper end of the upper frame of the vertical frame 3112, and the upper end surface of the upper platen 3123 is provided with a guide ring group 32, a wire pressing assembly 33 and a hammering mechanism 34.

[0065] The working principle of the lifting assembly in the present application is: start the motor C, the rotation of the motor C drives the transmission shaft to rotate, the rotation of the transmission shaft drives the bevel gear D to rotate, the rotation of the bevel gear D drives the bevel gear C to rotate, the rotation of the bevel gear C drives the sleeve to rotate, the rotation of the sleeve drives the screw rod to rotate, the rotation of the screw rod drives the lifting plate to rise and fall, in order to prevent the lifting plate from making a linear motion on the screw rod, a guide rod is provided, the guide rod has the function of guiding and limiting, the lifting plate rises and falls, driving the lifting frame to rise and fall, and finally realizing the lifting and falling of the upper platform.

[0066] See also Fig.10 The guide ring group 32 includes five guide rings 321 arranged in a linear array, each guide ring 321 includes a vertical rod portion and a circular ring portion arranged at the upper end of the vertical rod portion, the height of the vertical rod portions of the five guide rings 321 decreases successively, thereby driving the center height of each circular ring portion to decrease successively, and the wire crimping assembly 33 includes a fixed seat 331, and a wire crimping wheel 332 is arranged on the fixed seat 331. The wire crimping wheel 332 is mounted on the fixed seat 331, and the height of the axis of the wire crimping wheel 332 relative to the ground is less than the height of the axis of the lowest circular ring portion relative to the ground.

[0067] The working principle of the guide ring group in the present application is as follows: when the end of the steel bar is stretched out, the end of the steel bar passes through the guide rings from high to low in sequence, with the aim of lowering the height of the steel bar. Preferably, the diameter of the circular ring on the guide ring is equal to the diameter of the steel bar. Therefore, the guide ring can prevent the steel bars between the guide rings from being spirally shaped. Furthermore, the lowered steel bar is passed between the upper platen and the pressing wheel, and finally the steel bar is limited between the upper platen and the pressing wheel, further preventing the stretched steel bar from being spirally shaped.

[0068] See also Figure 11-13 The hammering mechanism 34 includes a lead wire part 341 and a hammering part 342. The lead wire part 341 includes a receiving frame 3411. The receiving frame 3411 is provided with a wire barrel 3412. The outer circumference of the wire barrel 3412 is provided with a long through hole. One end of the wire barrel 3412 is provided with a driven gear 3413. The driven gear 3413 is provided on the outer side of the receiving frame 3411. A gear seat is provided on one side of the receiving frame 3411. A gear shaft is provided in the gear seat. A motor D is provided at one end of the gear shaft, and a driving gear 3414 is provided at the other end. The driving gear 3414 is meshed with the driven gear 3413. The hammering part 342 includes a base plate 3421. A motor E is provided on the base plate 3421. A rotating wheel 3413 is provided on the front side of the motor E. 23. The rotating wheel 3423 includes a wheel disc 34231. Fixed shafts are arranged on both sides of the wheel disc 34231, one of which is connected to the output shaft of the motor E. The fixed shafts on both sides of the wheel disc 34231 are mounted on a support seat. A pin is arranged at one end of the wheel disc 34231. A circular array of pins is arranged on the outside of the fixed shaft on one side. A hinge seat is arranged at one side of the rotating wheel 3423. A linkage rod 3424 is arranged on the hinge seat. The linkage rod 3424 includes two end portions and a middle portion. One end of the linkage rod 3424 is connected to the pin, and the middle portion of the linkage rod 3424 is pivotally connected to the hinge seat. A weight 3425 is arranged at the other end of the linkage rod 3424. The weight 3425 corresponds to the long through hole on the outer circumference of the wire tube 3412.

[0069] The working principle of the hammering mechanism in the present application is as follows: because the pulled-out steel bars are limited by the wire pressing wheel and the upper platen, the steel bars between the guide ring group and the wire pressing wheel will not be in a spiral state. However, in order to prevent stains on the steel bars from entering the straightening mechanism or to prevent local bending and deformation of the steel bars, the motor D is started, and the motor D drives the driven gear through the active gear to drive the wire tube to rotate in a small range. Preferably, the diameter of the through holes at both ends of the wire tube is equal to the diameter of the steel bars, so the steel bars can be driven to rotate in a small range, and the deformed part of the steel bars can be adjusted to the upward direction. At this time, the motor E is started, and the rotation of the motor E drives the rotating wheel to rotate, and the rotation of the rotating wheel drives the pin on the turntable to rotate. When the pin rotates to the top of the linkage rod, it continues to rotate, which will press down one end of the linkage rod, causing the other end of the linkage rod to lift, and then the heavy hammer is lifted. When the pin rotates past one end of the linkage rod, the heavy hammer falls due to its own gravity and directly hits the steel bar containing stains or undergoing local bending and deformation.

[0070] See also Figure 14-18 : A straightening mechanism 4 is provided on one side of the wire pressing mechanism 3, and the straightening mechanism 4 is used to straighten the steel bars. A cutting mechanism 5 is provided on the straightening mechanism 4, and the cutting mechanism 5 cuts the straightened steel bars;

[0071] The straightening mechanism 4 includes a bracket 41, on which an upper pressing roller 42 and a lower pressing roller 43 are arranged. A belt transmission mechanism 44 and an intermittent mechanism 45 are arranged on one side of the bracket 41. One end of the intermittent mechanism 45 is connected to the upper pressing roller 42, and the other end is connected to the belt transmission mechanism 44. The belt transmission mechanism 44 drives the intermittent mechanism 45 to rotate, thereby controlling the rotation of the upper pressing roller 42.

[0072] The cutting mechanism 5 includes a support 51 on which a cutting knife 52 is arranged. One end of the cutting knife 52 head is arranged on the upper part of the steel bar. A toggle assembly 53 is arranged at the handle of the cutting knife. The toggle assembly 53 controls the cutting knife 52 to cut the steel bar.

[0073] The straightening mechanism 4 is arranged on the load-bearing frame, the upper end surface of the load-bearing frame is provided with a bracket 41, the gap between the upper pressing roller 42 and the lower pressing roller 43 is equal to the diameter of the steel bar, the intermittent mechanism 45 includes an active fork 451 and a driven fork 452, the driven fork 452 is arranged on the upper pressing roller 42, a portal frame A is arranged on one side of the load-bearing frame, a linkage shaft is arranged on the portal frame A, an active fork 451 is arranged at one end of the linkage shaft, a roller shaft hole is arranged in the middle of the driven fork 452, and the driven fork 452 is provided with a roller shaft hole. Arc plates 4521 are evenly arranged on the circumference, and slots 4522 are formed between adjacent arc plates 4521. Arc wings 4511 are evenly arranged on the circumference of the active fork 451, and a shift fork 4512 is arranged between adjacent arc wings 4511. A cylindrical pin 45121 is arranged on the shift fork 4512, and the cylindrical pin 45121 is arranged in the slot 4522. The arc wings 4511 are tangent to the arc plates 4521, and a linkage shaft hole is arranged in the middle of the active fork 451. A linkage shaft is arranged in the driving shaft hole, and the belt transmission mechanism 44 includes a driving wheel 441, a driven wheel 442 and a synchronous belt 443. A support plate is arranged on one side of the load-bearing frame, and a driving shaft 444 is arranged on the support plate. A driving wheel 441 is arranged on the driving shaft 444, and a driven wheel 442 is arranged on the linkage shaft. A synchronous belt 443 is wound around the driving wheel 441 and the driven wheel 442. A bracket 46 is arranged on the load-bearing frame, and the bracket 46 is used to hold the straightened steel bar. The toggle assembly 53 includes A toggle plate 531 is provided, and a driving shaft 444 passes through the supporting plate. A motor F is provided at one end, and a toggle plate 531 is provided at the other end. A toggle pin 532 is provided on the toggle plate 531. A toggle wire 533 is provided at the handle of the cutting knife 52. The toggle wire 533 is provided between the handle of the cutting knife 52 and the toggle pin 532. A spring 534 is also provided at the handle of the cutting knife 52. One end of the spring 534 is fixedly connected to the handle of the cutting knife, and the other end is fixedly connected to the load-bearing frame.

[0074] The working principle of the straightening mechanism in the present application is as follows: when the steel bar enters the straightening mechanism, the motor F is started, and the rotation of the motor F drives the active wheel to rotate, and then drives the main wheel to rotate, and through the synchronous belt, drives the driven wheel to rotate, and then drives the linkage shaft to rotate. Because an active fork is arranged on the linkage shaft, the active fork is driven to rotate, and because the cylindrical pin on the shift fork of the active fork is arranged in the slot hole of the driven fork, the driven fork rotates with the rotation of the active fork, and because the driven fork is arranged on the upper pressure roller, the upper pressure roller rotates with the rotation of the driven fork, and the steel bar is pulled by friction under the synchronous action of the upper pressure roller and the lower pressure roller. Here, the upper pressure roller rotates, and the lower pressure roller only plays the function of supporting and clamping the steel bar.

[0075] At the same time, as the motor F rotates, the driving shaft is driven to rotate, and the toggle plate set on the driving shaft rotates, and the toggle pin on the toggle plate makes a circular motion accordingly. There is a toggle line between the toggle pin and the handle of the cutting knife, so the toggle line rotates as the toggle pin rotates, thereby causing a change in the up and down position, so that the handle of the cutting knife is lifted or pressed down. When the handle of the cutting knife is lifted, the cutting head cuts the straightened steel bars. When the handle of the cutting knife is pressed down, the cutting head of the cutting knife is lifted and no longer cuts the steel bars.

[0076] A method for straightening a steel bar straightening structure for an assembled building, comprising the following steps:

[0077] Step 1: Place the wire rod on the support rod of the discharge mechanism, start motor B, and the support rod moves with the movement of the sliding block until the outer side of the support rod fits the inner side of the wire rod, and then turn off motor B;

[0078] Step 2: Start motor A to rotate the turntable and start laying out the wire rod steel bars, start motor C to adjust the height of the lifting plate, and then control the height of the upper plate to be consistent with the height of the wire rod steel bars, and turn off motor C;

[0079] Step 3: Pass the end of the wire rod through the guide ring group and the bottom of the wire pressing wheel into the wire tube, and then pass it between the upper pressing roller and the lower pressing roller from the wire tube;

[0080] Step 4: Start the motor D to make the wire barrel do circular motion, and drive the local steel bars in the wire barrel to rotate through the wire barrel;

[0081] Step 5: Start the motor E, and the motor E drives the heavy hammer to hit the steel bars in the wire tube through the long through hole until the steel bars in the wire tube are in a straight line state, and then turn off the motor E and the motor D;

[0082] Step 6: Start the motor D, make the motor D rotate in the reverse direction, restore the steel bar in the wire barrel to the initial state, and turn off the motor D;

[0083] Step seven: start the motor F, the motor F rotates through the synchronous belt to drive the upper pressure roller to rotate, and under the cooperation of the upper pressure roller and the lower pressure roller, the friction force drives the steel bar to move to the cutting mechanism;

[0084] Step 8: As the motor F rotates, the toggle pin is driven to rotate, and the toggle wire rotates along with the toggle pin, thereby driving the handle of the cutting knife to be lifted or pressed down, so that the blade of the cutting knife is pressed down or lifted, thereby realizing the cutting process of the steel bar.

[0085] Technical features not described in the present application can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present application should also fall within the scope of protection of the present application.

Claims

1. A steel bar straightening structure for assembled buildings, characterized in that: The invention comprises a feeding mechanism (1), wherein a wire rod steel bar (2) is arranged on the feeding mechanism (1), and the feeding mechanism (1) has two working states: rotation and opening and closing. The feeding mechanism (1) rotates to drive the wire rod steel bar (2) to rotate, and the opening and closing of the feeding mechanism (1) is used to prevent the wire rod steel bar (2) from being scattered. A wire pressing mechanism (3) is arranged on one side of the feeding mechanism (1), and the wire pressing mechanism (3) is used to prevent the wire rod steel bar (2) from being in a spiral state after being pulled out. A straightening mechanism (4) is arranged on one side of the wire pressing mechanism (3), and the straightening mechanism (4) is used to straighten the steel bar. A cutting mechanism (5) is arranged on the straightening mechanism (4), and the cutting mechanism (5) cuts the straightened steel bar. The material discharge mechanism (1) comprises a frame (11), an upper plate (12) is arranged on the upper end surface of the frame (11), a rotating disk (13) is arranged on the upper plate (12), the rotating disk (13) rotates relative to the upper plate (12), an opening and closing mechanism (14) is arranged on the rotating disk (13), the opening and closing mechanism (14) comprises a fixed frame (141), a gear transmission assembly (142) is arranged at the bottom of the fixed frame (141), a sliding block (143) is arranged on the fixed frame (141), a support rod (144) is arranged on the sliding block (143), the gear transmission assembly (142) drives the sliding block (143) to move, thereby controlling the opening and closing of the support rod (144); The wire pressing mechanism (3) comprises a lifting component (31), the lifting component (31) is lifted and lowered according to the height of the wire rod steel bar (2), a guide ring group (32) is arranged on the lifting component (31), the guide ring group (32) is used to prevent the wire rod steel bar from being in a spiral state after being stretched, a wire pressing component (33) is arranged on one side of the guide ring group (32), the wire pressing component (33) further prevents the wire rod steel bar from being in a spiral state, and a hammering mechanism (34) is arranged on one side of the wire pressing component (33), the hammering mechanism (34) locally hammers the stretched steel bar; The straightening mechanism (4) comprises a bracket (41), an upper pressing roller (42) and a lower pressing roller (43) are arranged on the bracket (41), a belt transmission mechanism (44) and an intermittent mechanism (45) are arranged on one side of the bracket (41), one end of the intermittent mechanism (45) is connected to the upper pressing roller (42), and the other end is connected to the belt transmission mechanism (44), the belt transmission mechanism (44) drives the intermittent mechanism (45) to rotate, thereby controlling the rotation of the upper pressing roller (42); The cutting mechanism (5) comprises a support (51), a cutting knife (52) is arranged on the support (51), one end of the cutting knife (52) is arranged on the upper part of the steel bar, and a toggle assembly (53) is arranged on the handle of the cutting knife, and the toggle assembly (53) controls the cutting knife (52) to cut the steel bar; The lifting assembly (31) comprises a support frame (311), the support frame (311) comprises a bottom cross frame (3111) and a vertical frame (3112), the vertical frame (3112) and the bottom cross frame (3111) are vertically fixedly connected, the vertical frame (3112) comprises an upper frame and a lower frame, a screw rod (35) is provided through the upper frame and the lower frame of the vertical frame (3112), and a bevel gear is provided at the lower end of the screw rod (35). C (36), a sleeve (37) is arranged in the gear hole of the bevel gear C (36), an internal thread corresponding to the external thread of the screw rod (35) is arranged in the sleeve (37), a base (31111) is arranged on the bottom cross frame (3111), a transmission shaft (38) is arranged through the base (31111), a motor C is arranged at one end of the transmission shaft (38), and a bevel gear D (39) is arranged at the other end, and the bevel gear D (39) The upper frame of the vertical frame (3112) is meshed with the bevel gear C (36), the upper frame of the vertical frame (3112) is provided with guide rods (31121), the guide rods (31121) are arranged on both sides of the screw rod (35), a lifting plate (310) is arranged on the screw rod (35) of the upper frame, a lifting frame (312) is arranged on the lifting plate (310), and the lifting frame (312) includes a bottom plate (3121), a vertical plate (3122) and An upper platen (3123), the upper end surface of the bottom plate (3121) is fixedly connected to the lower end surface of the lifting plate (310), the vertical plates (3122) are arranged on both sides of the lifting plate (310), the upper platen (3123) is arranged at the upper end of the upper frame of the vertical frame (3112), and the upper end surface of the upper platen (3123) is provided with the guide ring group (32), the wire pressing assembly (33) and the hammering mechanism (34); The hammering mechanism (34) comprises a lead wire portion (341) and a hammering portion (342); the lead wire portion (341) comprises a receiving frame (3411); a wire barrel (3412) is arranged on the receiving frame (3411); a long through hole is arranged on the outer circumference of the wire barrel (3412); a driven gear (3413) is arranged at one end of the wire barrel (3412); the driven gear (3413) is arranged on the receiving frame (3411); 11), a gear seat is arranged on one side of the receiving frame (3411), a gear shaft is arranged in the gear seat, a motor D is arranged at one end of the gear shaft, and a driving gear (3414) is arranged at the other end, the driving gear (3414) is meshed with the driven gear (3413), the hammering part (342) includes a base plate (3421), a motor E is arranged on the base plate (3421), and a rotating wheel (3413) is arranged in front of the motor E. 423), the rotating wheel (3423) includes a wheel disc (34231), both sides of the wheel disc (34231) are provided with fixed shafts, one of the fixed shafts is connected to the output shaft of the motor E, the fixed shafts on both sides of the wheel disc (34231) are mounted on a support seat, one end of the wheel disc (34231) is provided with a pin, the circumferential array of the pins is outside the fixed shaft on one side, one side of the rotating wheel (3423) is provided with a hinge seat, and a linkage rod (3424) is provided on the hinge seat, the linkage rod (3424) includes two end portions and a middle portion, one end of the linkage rod (3424) is connected to the pin, the middle portion of the linkage rod (3424) is pivotally connected to the hinge seat, and the other end of the linkage rod (3424) is provided with a weight (3425), and the weight (3425) corresponds to the long through hole on the outer circumference of the wire tube (3412); The straightening mechanism (4) is arranged on a load-bearing frame, the bracket (41) is arranged on the upper end surface of the load-bearing frame, the gap between the upper pressing roller (42) and the lower pressing roller (43) is equal to the diameter of the steel bar, the intermittent mechanism (45) comprises an active fork (451) and a driven fork (452), the driven fork (452) is arranged on the upper pressing roller (42), a portal frame A is arranged on one side of the load-bearing frame, a linkage shaft is arranged on the portal frame A, the active fork (451) is arranged at one end of the linkage shaft, a roller shaft hole is arranged in the middle of the driven fork (452), and the driven fork (452) is arranged on the upper pressing roller (42). ) are evenly provided with arc plates (4521) on the circumference, and slots (4522) are formed between adjacent arc plates (4521); arc wings (4511) are evenly provided on the circumference of the active fork (451); a shift fork (4512) is provided between adjacent arc wings (4511); a cylindrical pin (45121) is provided on the shift fork (4512), and the cylindrical pin (45121) is arranged in the slot (4522); the arc wings (4511) are tangent to the arc plates (4521); a linkage shaft hole is provided in the middle of the active fork (451), and the linkage shaft hole The linkage shaft is arranged inside, the belt transmission mechanism (44) comprises a driving wheel (441), a driven wheel (442) and a synchronous belt (443), a support plate is arranged on one side of the load-bearing frame, a driving shaft (444) is arranged on the support plate, the driving wheel (441) is arranged on the driving shaft (444), the driven wheel (442) is arranged on the linkage shaft, the synchronous belt (443) is wound around the driving wheel (441) and the driven wheel (442), a bracket (46) is arranged on the load-bearing frame, the bracket (46) is used to support the straightened steel bar, and the toggle assembly (53) ) comprises a toggle plate (531), the driving shaft (444) passes through the support plate, one end of which is provided with a motor F, and the other end of which is provided with the toggle plate (531), the toggle plate (531) is provided with a toggle pin (532), the handle of the cutting knife (52) is provided with a toggle wire (533), the toggle wire (533) is provided between the handle of the cutting knife (52) and the toggle pin (532), the handle of the cutting knife (52) is also provided with a spring (534), one end of the spring (534) is fixedly connected to the handle of the cutting knife, and the other end is fixedly connected to the load-bearing frame.

2. The steel bar straightening structure for prefabricated buildings according to claim 1, characterized in that: An axial hole is provided in the middle of the upper top plate (12), a rotating shaft (15) is provided in the axial hole, the rotating shaft (15) passes through the upper top plate (12), one end of the rotating shaft (15) is provided at the bottom of the upper top plate (12), and the other end is provided at the top of the upper top plate (12), a motor A is provided on the rotating shaft (15) provided at the bottom of the upper top plate (12), the rotating disk (13) is provided on the rotating shaft provided at the top of the upper top plate (12), a bull's eye (17) is provided between the rotating disk (13) and the upper top plate (12), the bottom of the bull's eye (17) is fixedly connected to the upper end surface of the upper top plate (12), and the ball of the bull's eye (17) is connected to the bottom surface of the rotating disk (13).

3. The steel bar straightening structure for prefabricated buildings according to claim 1, characterized in that: The gear transmission assembly (142) comprises a bevel gear A (1421) and a bevel gear B (1422); the upper end surface of the turntable (13) is provided with a base (18); the base (18) is provided with a main shaft (19); the main shaft (19) passes through the base (18); one end of the main shaft (19) extends outward from the base (18) to form an extension part A; the extension part A is provided with a motor B; the other end of the main shaft (19) extends inward from the base (18) to form an extension part B; the extension part B is provided with the bevel gear A (1421); the fixed frame (141) comprises an upper end and a lower end; the lower end of the fixed frame (141) is provided with a support leg (1411); the support leg is fixedly connected to the upper end surface of the turntable (13); the fixed frame (141) The upper end of the fixed frame (141) comprises a circular ring (1412) and a circular plate (1413), the inner side surface of the circular ring (1412) is provided with a limiting groove (14121), the bevel gear B (1422) is arranged in the limiting groove (14121), the bevel gear B (1422) is meshed with the bevel gear A (1421), the back side of the bevel gear B (1422) is provided with a vortex boss (14221), the circular plate (1413) of the fixed frame (141) is provided with a guide groove (14131), the sliding block (143) is arranged in the guide groove (14131), the bottom of the sliding block (143) is provided with a rack (1431), the rack (1431) is meshed with the vortex boss (14221).

4. The steel bar straightening structure for prefabricated buildings according to claim 1, characterized in that: The guide ring group (32) comprises five guide rings (321) arranged in a linear array, each guide ring (321) comprises a vertical rod portion and a circular ring portion arranged at the upper end of the vertical rod portion, the height of the vertical rod portions of the five guide rings (321) is successively reduced, thereby driving the center height of each circular ring portion to be successively reduced, and the wire pressing assembly (33) comprises a fixed seat (331), a wire pressing wheel (332) is arranged on the fixed seat (331), and the wire pressing wheel (332) is mounted on the fixed seat (331), and the height of the axis of the wire pressing wheel (332) relative to the ground is less than the height of the axis of the lowest circular ring portion relative to the ground.

5. A method for straightening a steel bar straightening structure for an assembled building using any one of claims 1 to 4, comprising the following steps: Step 1: Place the wire rod steel bar on the support rod of the discharge mechanism, start motor B, and the support rod moves with the movement of the sliding block until the outer side of the support rod fits the inner side of the wire rod steel bar, and then turn off motor B; Step 2: Start motor A to rotate the turntable and start laying out the wire rod steel bars, start motor C to adjust the height of the lifting plate, and then control the height of the upper plate to be consistent with the height of the wire rod steel bars, and turn off motor C; Step 3: Pass the end of the wire rod through the guide ring group and the bottom of the wire pressing wheel into the wire tube, and then pass it between the upper pressing roller and the lower pressing roller from the wire tube; Step 4: Start the motor D to make the wire barrel do circular motion, and drive the local steel bars in the wire barrel to rotate through the wire barrel; Step 5: Start the motor E, and the motor E drives the heavy hammer to hammer the steel bars in the wire tube through the long through hole until the steel bars in the wire tube are in a straight line state, and then turn off the motor E and the motor D; Step 6: Start the motor D, make the motor D rotate in the reverse direction, make the steel bar in the wire barrel return to the initial state, and turn off the motor D; Step seven: start the motor F, the motor F rotates through the synchronous belt to drive the upper pressure roller to rotate, and under the cooperation of the upper pressure roller and the lower pressure roller, the friction force drives the steel bar to move toward the cutting mechanism; Step 8: As the motor F rotates, the toggle pin is driven to rotate, and the toggle wire rotates along with the toggle pin, thereby driving the handle of the cutting knife to be lifted or pressed down, so that the blade of the cutting knife is pressed down or lifted, thereby realizing the cutting process of the steel bar.

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