A steel bar forming device for construction and its usage method

Abstract

The present invention discloses a steel bar forming device for construction and its usage method, which relates to the technical field of construction steel bar production. It includes a feeding component, a discharging component and a cutting platform. The feeding component includes feeding limiting side plates installed on one side of the cutting platform, and a plurality of groups of feeding conveying lines are installed on the end face of the feeding limiting side plates at equal intervals. The discharging component includes discharging limiting side plates installed on the other side of the cutting platform, and the inner side of the discharging limiting side plates is provided with bottom plates arranged at equal intervals and separated from each other. An electromagnetic valve is installed at the bottom end of each group of bottom plates. A cutting and grinding integrated component is installed directly above the cutting platform. By setting a grinding component, a first pressing block component, a second pressing block component and a dust removal component, the present invention integrates cutting, grinding and dust removal, which can greatly improve production efficiency and can efficiently grind the cutting ports of steel bars at a relatively low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of building steel bar production, and specifically relates to a steel bar forming device for buildings and its usage method. Background Art

[0002] Steel bars refer to steel materials used for steel bars and reinforced concrete. They are circular, and sometimes square with rounded corners, including ribbed steel bars and twisted steel bars; in the construction field, steel bars used for reinforced concrete are straight or coiled steel bars used for reinforcing reinforced concrete. Their outer shapes are divided into plain round steel bars and deformed steel bars, and the delivery states are straight bars and coiled rounds.

[0003] Plain round steel bars are small round steel bars and coiled rounds of ordinary low-carbon steel; deformed steel bars are steel bars with ribs on the surface, usually with 2 longitudinal ribs and transverse ribs evenly distributed along the length direction; the outer shapes of the transverse ribs are 3 types: spiral, herringbone, and crescent; steel bars mainly bear tensile stress in concrete, and due to the effect of the ribs, deformed steel bars have a greater bonding ability with concrete, so they can better bear external forces; steel bars are widely used in various building structures, especially large, heavy, light, and high-rise building structures.

[0004] The production process of a hot-rolled ribbed steel bar widely used in the current construction field includes: blooming - rough rolling - medium rolling - cooling - pre-finishing rolling - cooling - finishing rolling - cooling - wire laying - air-cooling roller table - coiling - slow cooling. After the ribbed steel bar is produced, it is also necessary to perform final shearing and bundling on the steel bar. Among them, shearing and forming is to cut the longer steel bar into short bar steel bars in sections, and the cutting size is set according to actual needs. When the existing technology shears and forms the steel bar, after the cutting tool completes the cutting of the steel bar, there will be burrs and a small amount of remaining material that is not completely cut on the end face of the steel bar. Small enterprises will not perform further processing for this situation, thereby reducing production costs, making the steel bars of the enterprise have a lower price and more competitiveness. However, the consequence is that when the steel bar is used in high-precision buildings, it is necessary to manually perform additional processing on the end face of the steel bar, causing certain trouble and affecting the construction progress. And large and medium-sized enterprises will set up a special process for surface treatment of the cut steel bar before bundling after cutting the steel bar, thereby improving the ex-factory quality of their steel bars. This will obviously lead to higher production costs. In summary, in order to improve the quality of the sheared steel bar and reduce production costs, we provide a steel bar forming device for buildings. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a steel bar forming device for buildings and its usage method to solve the technical problems mentioned in the above background.

[0006] To achieve the above object, the present invention provides the following technical solutions: A steel bar forming device for construction, comprising a feeding assembly, a discharging assembly and a cutting platform. The feeding assembly includes a feeding limiting side plate installed on one side of the cutting platform, and a plurality of feeding conveyor lines are installed on the end face of the feeding limiting side plate at equal intervals. The discharging assembly includes a discharging limiting side plate installed on the other side of the cutting platform, and a bottom plate is arranged at equal intervals and separated inside the discharging limiting side plate. An electromagnetic valve is installed at the bottom end of each group of bottom plates. A cutting and grinding integrated assembly is installed directly above the cutting platform, and a grinding assembly is arranged on the end face of the cutting and grinding integrated assembly. A first pressing block assembly is installed above the feeding conveyor line on one side of the cutting and grinding integrated assembly, and a second pressing block assembly is installed above the bottom plate on the other side of the cutting and grinding integrated assembly.

[0007] By adopting the above technical solutions, after the steel bar is cut, the cutting port of the steel bar can be efficiently ground immediately. Both the first pressing block assembly and the second pressing block assembly play a role in pressing and limiting the steel bar, ensuring stability during cutting and grinding. In addition, the second pressing block assembly can also make the steel bar rotate, further improving the grinding effect. Moreover, the rotating steel bar can be detected by the bending degree screening assembly arranged in the second engaging groove, realizing the detection of the bending degree of the steel bar after forming, and further improving the forming quality of the steel bar.

[0008] The present invention is further configured such that the cutting and grinding integrated assembly includes a vertical plate directly above the cutting platform, and the vertical plate is composed of two parts. The bottom part of the vertical plate is fixedly connected with a cutting tool, and the top part of the vertical plate is used for installing the grinding assembly. A cylinder for controlling the movement of the vertical plate is also installed on the top end face of the vertical plate.

[0009] By adopting the above technical solutions, it plays a role in carrying and driving the cutting tool, the grinding assembly and the dust removal assembly.

[0010] The present invention is further configured such that the grinding assembly includes a mounting hole opened on the end face of the top part of the vertical plate, and a first grinding wheel is installed inside the mounting hole within the vertical plate. A second grinding wheel is installed on the other side inside the vertical plate. A double-headed positive and reverse motor fixedly installed on the inner wall of the vertical plate is installed between the first grinding wheel and the second grinding wheel, and the output ends of both ends of the double-headed positive and reverse motor are respectively connected to the end faces of the first grinding wheel and the second grinding wheel through couplings. The end faces of the first grinding wheel and the second grinding wheel both extend outward from the end face of the vertical plate, and the extension distance is one millimeter.

[0011] By adopting the above technical solutions, it plays an efficient grinding effect on the cutting end of the steel bar.

[0012] The present invention is further configured such that the first pressing block assembly includes a first pressing block disposed above the feeding conveyor line. A hydraulic cylinder for controlling the up-and-down movement of the first pressing block is installed at the top end of the first pressing block. A first engaging groove adapted to the outer wall of the steel bar and slightly larger than the diameter of the steel bar is formed at the bottom end of the first pressing block. There are multiple groups of the first engaging grooves and they are equidistantly distributed at the bottom end of the first pressing block.

[0013] By adopting the above technical solution, it has the effect of pressing and limiting the steel bar at the feeding end.

[0014] The present invention is further configured such that the second pressing block assembly includes a second pressing block disposed above the bottom plate. A hydraulic cylinder for controlling the up-and-down movement of the second pressing block is installed at the top end of the second pressing block. A second engaging groove adapted to the outer wall of the steel bar and slightly larger than the diameter of the steel bar is formed at the bottom end of the second pressing block. There are multiple groups of the second engaging grooves and they are equidistantly distributed at the bottom end of the second engaging groove. The top wall of the second engaging groove is open. Transmission rods extending to the inside of the second pressing block are symmetrically arranged on the outer wall of the second pressing block. Driven gears are fixedly connected to the end faces of the two transmission rods. A cavity is formed inside the second pressing block. Two groups of sprockets are symmetrically installed inside the cavity. The end faces of the two groups of sprockets are respectively connected to the ends of the two transmission rods through couplings. Chains are meshed with the outer walls of the two groups of sprockets. A limiting plate fixedly connected to the inner wall of the cavity is arranged between the inner sides of the two groups of sprockets at both ends of the chain. A fixing block fixedly connected to the top end of the chain link is horizontally slidably connected and vertically limit-connected to the bottom end of the limiting plate. A connecting block is fixedly connected to the bottom end of the chain link. A driven plate slidably connected to the inner wall of the cavity is fixed to the bottom end of the connecting block. A pressing plate with the bottom end face extending to the opening of the second engaging groove is fixedly connected to the bottom end of the driven plate.

[0015] By adopting the above technical solution, the second pressing block assembly can not only press and limit the steel bar, but also drive and rotate the steel bar during grinding, thereby further improving the quality of the cutting end of the steel bar. Moreover, it can also detect the bending degree of the steel bar correspondingly, and has strong functionality.

[0016] The present invention is further configured such that the dust removal assembly includes air boxes opened on both sides inside the vertical plate and having air outlet ends communicating with an external exhaust system. An exhaust fan blade is installed inside the air box, and the exhaust fan blade is drivingly connected to the output end of a double-headed positive and negative motor through a transmission shaft, a transmission turntable, and a transmission belt. A connecting shaft is connected between the transmission turntables of the two exhaust fan blades, and a first turntable is fixedly sleeved on the outer wall of the connecting shaft. One side of the first turntable is drivingly connected to a second turntable installed on the inner wall of the vertical plate through a transmission belt, and the end of the second turntable is connected to a driving rod through a coupling. The other end of the driving rod extends to the outside of the vertical plate and is fixedly connected to a driving gear, and the vertical movement direction of the driving gear is at the same axis position as the driven gear.

[0017] By adopting the above technical solution, it has the effect of sucking dust during the grinding process, purifies the air quality of the working environment, and can also recycle the grinding powder to avoid waste of resources.

[0018] The present invention is further configured such that the bending degree screening assembly includes an arc plate provided on the outer side of the inner wall of the second engaging groove, and a return spring connected to the inner wall of the second engaging groove is installed on the inner end face of the arc plate. A top rod spaced from the inner wall of the second engaging groove is also fixedly connected to the inner side of the arc plate, and the spacing is set according to the requirements of the bending degree of the steel bar. A pressure sensor is installed on the end face of the second engaging groove on the outer side of the top rod, and the pressure sensor is electrically connected to the electromagnetic valve through a single-chip microcomputer.

[0019] By adopting the above technical solution, it has the effect of detecting the bending degree of the steel bar and can separately cut the steel bars that do not meet the requirements, thus achieving the screening effect.

[0020] A usage method of a steel bar forming device for construction includes the following steps:

[0021] S1. First, feed the long steel bar through the feeding assembly until the end of the steel bar moves onto the discharging assembly, and make the distance between the end of the steel bar on the discharging assembly and the cutting platform be the set cutting length;

[0022] S2. Subsequently, start the hydraulic cylinders of the cutting and grinding integrated assembly, the first pressing block assembly, and the second pressing block assembly, so that both the first pressing block and the second pressing block can achieve pressing and limiting of the steel bar, and at the same time, the cutting tool moves downward to achieve cutting of the steel bar.

[0023] S3. Furthermore, move the integrated cutting and grinding component downward continuously and activate the grinding component. Stop the moving rod until the grinding wheel moves to the cut end of the steel bar. At this time, the grinding wheel can grind the cut end of the steel bar. While grinding, use the second pressing block component to drive the cut steel bar to rotate. While improving the grinding quality, use the rotation of the steel bar to detect its degree of bending. This process is implemented by the degree-of-bending screening component;

[0024] S4. Finally, the steel bars that do not meet the bending requirements will directly fall and be discharged through the opened electromagnetic valve, while the steel bars that meet the requirements will be discharged from the end of the discharging component under the extrusion of the subsequent steel bars.

[0025] In summary, the present invention mainly has the following beneficial effects:

[0026] 1. By setting the grinding component, the first pressing block component, the second pressing block component and the dust removal component, first, the steel bar will move in the direction close to the bottom plate under the action of the feeding conveyor until the distance between the end of the steel bar on the bottom plate and the cutting platform reaches the set cutting length and then stop moving. Subsequently, activate the hydraulic cylinders of the first pressing block and the second pressing block, so that the engaging grooves of the first pressing block and the second pressing block both move to the outside of the steel bar for limiting. The first pressing block and the second pressing block play a role in pressing and limiting the steel bar. Subsequently, activate the air cylinder, and the air cylinder will drive the vertical plate to move downward. Therefore, the cutting tool will move in the direction close to the cutting platform under the action of the vertical plate until the cutting of the steel bar is completed. Subsequently, make the vertical plate continue to move until the lower end face of the grinding wheel contacts the cut port of the steel bar. At this time, start the double-headed positive and negative motor. Under the action of the motor, both the first grinding wheel and the second grinding wheel will rotate intermittently and reciprocally, thus achieving the grinding effect on the cut port of the steel bar. In addition, the output power of the double-headed positive and negative motor will also drive the sprockets and chains inside the second pressing block to operate under the action of the transmission structure. Therefore, under the action of the chain, the pressing plate will drive the steel bars in each group of second engaging grooves to rotate in the direction opposite to the rotation direction of the grinding wheel. Through the relative movement grinding, the grinding quality can be further improved. While grinding, the output power of the double-headed positive and negative motor will also drive the suction fan blades in the air box to rotate through the transmission structure, so that the suction fan blades can suck the dust generated by grinding. The above structure integrates cutting, grinding and dust removal, which can greatly improve the production efficiency and can efficiently grind the cut port of the steel bar at a relatively low cost, improving the cutting quality of the steel bar. Further, during the grinding process, the dust removal component sucks the dust generated by grinding, achieving the effect of purifying the air in the working environment;

[0027] 2. By setting the second pressing block assembly, the curvature screening device and the electromagnetic valve, when the pressing plate drives the steel bar to rotate, if the curvature of the steel bar meets the requirements, even if there are slight bends, it is not enough to cause the arc plate to drive the ejector rod to press the pressure sensor. On the contrary, if the curvature of the steel bar does not meet the requirements, it will squeeze the arc plate during rotation, causing the arc plate to drive the ejector rod to move to the end face of the pressure sensor to apply pressure. After the pressure sensor detects the pressure value, it will send a signal to the single-chip microcomputer, and the single-chip microcomputer will thus control the electromagnetic valve to open. At this time, this group of steel bars will directly fall and discharge through the electromagnetic valve for recycling, and the remaining qualified steel bars will be discharged from the end of the electromagnetic valve under the extrusion of the subsequent steel bars to be cut. The above structure realizes the curvature detection and screening of the steel bars after cutting, so that the unqualified steel bars can be directly removed before unified discharging, further improving the ex-factory quality of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the structure of the cutting and grinding integrated component of the present invention;

[0030] Figure 3 is a schematic diagram of the internal structure of the cutting and grinding integrated component of the present invention;

[0031] Figure 4 is a schematic diagram of the structure of the first pressing block of the present invention.

[0032] Figure 5 is a schematic diagram of the overall structure of the second pressing block of the present invention;

[0033] Figure 6 is a schematic diagram of the internal structure of the second pressing block of the present invention;

[0034] Figure 7 For the present invention Figure 6 partial enlarged view at A;

[0035] Figure 8 is a top view of the discharging component of the present invention.

[0036] In the figure: 1. Feeding assembly; 101. Feeding limit side plate; 102. Feeding conveyor line; 2. Discharging assembly; 201. Discharging limit side plate; 202. Bottom plate; 203. Electromagnetic valve; 3. Cutting platform; 4. Cutting and grinding integrated assembly; 401. Vertical plate; 402. Cylinder; 403. Cutting tool; 5. Grinding assembly; 501. First grinding wheel; 502. Mounting hole; 503. Double-headed positive and reverse motor; 504. Second grinding wheel; 6. First pressing block assembly; 601. First pressing block; 602. First engaging groove; 7. Second pressing block assembly; 701. Second pressing block; 702. Second engaging groove; 703. Transmission rod; 704. Driven gear; 705. Cavity; 706. Sprocket; 707. Chain; 708. Limiting plate; 709. Fixed block; 710. Connecting block; 711. Driven plate; 712. Pressing plate; 8. Dust removal assembly; 801. Air box; 802. Suction fan blade; 803. Connecting shaft; 804. First turntable; 805. Second turntable; 806. Driving rod; 807. Driving gear; 9. Camber screening assembly; 901. Arc plate; 902. Return spring; 903. Thrust rod; 904. Pressure sensor. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0038] The embodiments of the present invention will be described below according to its overall structure.

[0039] A steel bar forming device for construction, as Figure 1-8 shown, includes a feeding assembly 1, a discharging assembly 2 and a cutting platform 3. The feeding assembly 1 includes a feeding limit side plate 101 installed on one side of the cutting platform 3, and a plurality of groups of feeding conveyor lines 102 are installed on the end face of the feeding limit side plate 101 at equal intervals. The discharging assembly 2 includes a discharging limit side plate 201 installed on the other side of the cutting platform 3, and equally spaced and separated bottom plates 202 are arranged inside the discharging limit side plate 201. An electromagnetic valve 203 is installed at the bottom end of each group of bottom plates 202.

[0040] Please refer to Figure 1 , a cutting and grinding integrated assembly 4 is installed directly above the cutting platform 3. The cutting and grinding integrated assembly 4 integrates the three steps of cutting, grinding and dust removal, so that the cutting port can be ground immediately after the steel bar cutting is completed, and at the same time, the waste dust generated during the grinding process can be removed.

[0041] Specifically, the integrated cutting and grinding component 4 includes a vertical plate 401 located directly above the cutting platform 3. The vertical plate 401 consists of two parts. The bottom part of the vertical plate 401 is fixedly connected with a cutting tool 403, while the top part of the vertical plate 401 is used to install the grinding component 5. The top end face of the vertical plate 401 is also equipped with a cylinder 402 for controlling the movement of the vertical plate 401.

[0042] Please refer to Figure 1-3 , the end face of the integrated cutting and grinding component 4 is provided with a grinding component 5, which can grind the cutting ports at both ends of the steel bar, thereby improving the forming quality of the steel bar on the premise of low cost;

[0043] Specifically, the grinding component 5 includes a mounting hole 502 opened on the end face of the top part of the vertical plate 401. Inside the mounting hole 502 and within the vertical plate 401, a first grinding wheel 501 is installed. On the other side inside the vertical plate 401, a second grinding wheel 504 is installed. Between the first grinding wheel 501 and the second grinding wheel 504, a double-headed reversible motor 503 fixedly installed on the inner wall of the vertical plate 401 is installed. The output ends of both ends of the double-headed reversible motor 503 are respectively connected to the end faces of the first grinding wheel 501 and the second grinding wheel 504 through couplings. The end faces of the first grinding wheel 501 and the second grinding wheel 504 both extend outward from the end face of the vertical plate 401, and the extension distance is one millimeter.

[0044] Please refer to Figure 1 and Figure 4 , on one side of the integrated cutting and grinding component 4 and above the feeding conveyor 102, a first pressing block component 6 is installed. The first pressing block component 6 realizes the pressing and limiting of the feeding end of the steel bar to ensure the stability of steel bar cutting;

[0045] Specifically, the first pressing block component 6 includes a first pressing block 601 arranged above the feeding conveyor 102. At the top of the first pressing block 601, a hydraulic cylinder for controlling the up and down movement of the first pressing block 601 is installed. At the bottom of the first pressing block 601, a first engaging groove 602 adapted to the outer wall of the steel bar and slightly larger than the diameter of the steel bar is opened. There are multiple groups of the first engaging grooves 602 and they are evenly distributed at the bottom of the first pressing block 601.

[0046] Please refer to Figure 1 , Figure 5 and Figure 6 , on the other side of the integrated cutting and grinding component 4 and above the bottom plate 202, a second pressing block component 7 is installed. The second pressing block component 7 can press and limit the steel bar at the discharging end to ensure the stability during steel bar cutting. Moreover, it can also drive the steel bar to rotate in the opposite direction to the grinding wheel during the grinding process, thereby further improving the grinding quality;

[0047] Specifically, the second pressing block assembly 7 includes a second pressing block 701 disposed above the bottom plate 202. A hydraulic cylinder for controlling the up and down movement of the second pressing block 701 is installed at the top end of the second pressing block 701. A second engaging groove 702 adapted to the outer wall of the steel bar and slightly larger than the diameter of the steel bar is formed at the bottom end of the second pressing block 701. There are multiple groups of the second engaging grooves 702 and they are equally spaced at the bottom end of the second engaging groove 702. The top wall of the second engaging groove 702 is open. Transmission rods 703 extending into the second pressing block 701 are symmetrically disposed on the outer wall of the second pressing block 701. Driven gears 704 are fixedly connected to the end faces of the two transmission rods 703. A cavity 705 is formed inside the second pressing block 701. Two groups of sprockets 706 are symmetrically installed inside the cavity 705. The end faces of the two groups of sprockets 706 are respectively connected to the ends of the two transmission rods 703 through couplings. Chains 707 are meshed with the outer walls of the two groups of sprockets 706. A limiting plate 708 fixedly connected to the inner wall of the cavity 705 is disposed between the inner sides of the two groups of sprockets 706 at both ends of the chain 707. A fixing block 709 fixedly connected to the top end of the chain link of the chain 707 is horizontally slidably connected and vertically limitedly connected to the bottom end of the limiting plate 708. A connecting block 710 is fixedly connected to the bottom end of the chain link. A driven plate 711 slidably connected to the inner wall of the cavity 705 is fixed to the bottom end of the connecting block 710. A pressing plate 712 with the bottom end face extending to the opening of the second engaging groove 702 is fixedly connected to the bottom end of the driven plate 711.

[0048] Please refer to Figure 2-3 In the cutting and grinding integrated assembly 4, a dust removal assembly 8 is provided inside. The power source of the grinding assembly 5 is used to provide power for the dust removal assembly 8, so that the suction fan blade 802 can rotate, thereby sucking the dust generated during the grinding process. In addition, the dust removal assembly 8 will also drive the sprocket 706 in the second pressing block assembly 7 through a transmission structure;

[0049] Specifically, the dust removal assembly 8 includes an air box 801 formed on both sides inside the vertical plate 401 and the air outlet end of which is communicated with the external exhaust system. A suction fan blade 802 is installed inside the air box 801. The suction fan blade 802 is drivingly connected to the output end of the double-headed positive and negative motor 503 through a transmission shaft, a transmission turntable, and a transmission belt. A connecting shaft 803 is connected between the transmission turntables of the two suction fan blades 802. A first turntable 804 is fixedly sleeved on the outer wall of the connecting shaft 803. A second turntable 805 installed on the inner wall of the vertical plate 401 is drivingly connected to one side of the first turntable 804 through a transmission belt. A driving rod 806 is connected to the end of the second turntable 805 through a coupling. The other end of the driving rod 806 extends to the outside of the vertical plate 401 and is fixedly connected to a driving gear 807. The vertical movement direction of the driving gear 807 is at the same axis position as the driven gear 704.

[0050] Please refer toFigure 6-7 , a bending degree screening component 9 is arranged inside the second clamping groove 702. The bending degree screening component 9 can detect the bending degree of the steel bar through the rotation of the steel bar. The steel bars that meet the requirements can be normally cut, while the steel bars that do not meet the requirements will directly fall vertically through the electromagnetic valve 203 to the lower part for recycling;

[0051] Specifically, the bending degree screening component 9 includes an arc plate 901 arranged on the outer side of the inner wall of the second clamping groove 702. A return spring 902 connected to the inner wall of the second clamping groove 702 is installed on the inner end face of the arc plate 901. A push rod 903 spaced from the inner wall of the second clamping groove 702 is also fixedly connected to the inner side of the arc plate 901, and the spacing is set according to the requirements of the bending degree of the steel bar. A pressure sensor 904 is installed on the end face of the second clamping groove 702 on the outer side of the push rod 903, and the pressure sensor 904 is electrically connected to the electromagnetic valve 203 through a single-chip microcomputer.

[0052] The working principle of the present invention is as follows: First, the steel bar will move towards the direction close to the bottom plate 202 under the action of the feeding conveyor 102 until it stops moving when the distance between the end of the steel bar on the bottom plate 202 and the cutting platform 3 is the set cutting length;

[0053] Start the hydraulic cylinders of the first pressing block 601 and the second pressing block 701, so that the clamping grooves of the first pressing block 601 and the second pressing block 701 both move to the outside of the steel bar for limiting, and the first pressing block 601 and the second pressing block 701 play a role in pressing and limiting the steel bar. Subsequently, start the cylinder 402, and the cylinder 402 will drive the vertical plate 401 to move downward. Therefore, the cutting tool 403 will move towards the direction close to the cutting platform 3 under the action of the vertical plate 401 until the cutting of the steel bar is completed;

[0054] After the steel bar is cut, make the vertical plate 401 continue to move until the lower end face of the grinding wheel contacts the cutting port of the steel bar, and at the same time, the driving gear 807 on the outside of the vertical plate 401 will move above the driven gear 704 and mesh with it. At this time, start the double-headed positive and negative motor 503. Under the action of the motor, both the first grinding wheel 501 and the second grinding wheel 504 will rotate intermittently and reciprocally, thus realizing the reciprocating and efficient grinding of the cutting port of the steel bar. While grinding, the output power of the double-headed positive and negative motor 503 will drive the suction fan blade 802 in the air box 801 to rotate through the transmission structure, so that the suction fan blade 802 can suck the dust generated by grinding and discharge the gas with dust to the external exhaust system, playing a role in purifying the air in the working environment;

[0055] Further, when the two groups of suction fan blades 802 rotate, the connecting shaft 803 connected between the two groups of driven turntables will rotate. Therefore, under the action of the connecting shaft 803, the first turntable 804 located on its outer wall will drive the second turntable 805 to rotate through the transmission belt. After the second turntable 805 rotates, it will drive the driving gear 807 to rotate through the driving rod 806. After the driving gear 807 rotates, it will drive the driven gear 704 to rotate. The driven gear 704 will then drive the sprocket 706 inside the second pressing block 701 to rotate through the transmission rod 703. After the sprocket 706 rotates, it will drive the chain 707 to rotate, enabling the chain 707 to have the effect of moving and transmitting. At this time, the chain bones of the chain 707 will drive the fixed block 709 to move, realizing the real-time support and limiting effect on the pressing plate 712. At the same time, the chain bones will also drive the connecting block 710 to move. The movement of the connecting block 710 will drive the pressing plate 712 to reciprocate through the driven plate 711. The movement of the pressing plate 712 will thus drive the steel bar to rotate in the second engaging groove 702 in the direction opposite to the rotation direction of the grinding wheel, further improving the grinding effect at the cutting port of the steel bar;

[0056] When the pressing plate 712 drives the steel bar to rotate, if the bending degree of the steel bar meets the requirements, even if there are slight bends, it is not enough to cause the arc plate 901 to drive the ejector rod 903 to squeeze the pressure sensor 904. On the contrary, if the bending degree of the steel bar does not meet the requirements, it will squeeze the arc plate 901 during the rotation process, causing the arc plate 901 to drive the ejector rod 903 to move to the end face of the pressure sensor 904 to apply pressure. After the pressure sensor 904 detects the pressure value, it will send a signal to the single-chip microcomputer. The single-chip microcomputer will then control the solenoid valve 203 to open. At this time, this group of steel bars will directly fall and discharge through the solenoid valve 203 for recycling. The remaining qualified steel bars will discharge from the end of the solenoid valve 203 under the extrusion of the subsequent steel bars to be cut, realizing the bending degree detection and screening of the cut steel bars.

[0057] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and do not limit the invention. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A steel bar forming device for construction, comprising a feeding assembly, a discharging assembly and a cutting platform, Features: The feed assembly includes a feed limit side plate installed on one side of the cutting platform, and a plurality of feed conveying lines are installed on the end surface of the feed limit side plate and are evenly spaced. The discharge assembly includes a discharge limit side plate installed on the other side of the cutting platform, and an evenly spaced and separated bottom plate is arranged on the inner side of the discharge limit side plate, and an electromagnetic valve is installed at the bottom end of each group of the bottom plates; A cutting and grinding integrated component is installed directly above the cutting platform, and a grinding component is arranged on the end face of the cutting and grinding integrated component. A first pressing block component is installed on one side of the cutting and grinding integrated component located above the feed conveyor line, and a second pressing block component is installed on the other side of the cutting and grinding integrated component located above the bottom plate. The cutting and grinding integrated component includes a vertical plate located directly above the cutting platform, and the vertical plate is composed of two parts. The bottom end portion of the vertical plate is fixedly connected to a cutting tool, and the top end portion of the vertical plate is used to install the grinding component. The top end face of the vertical plate is also installed with an air filter for controlling the movement of the vertical plate. The cylinder comprises a mounting hole provided on the end surface of the top part of the vertical plate, and the inner side of the mounting hole is located inside the vertical plate and a first grinding wheel is installed, and the other side of the vertical plate is installed with a second grinding wheel, and a double-headed forward and reverse motor fixedly installed with the inner wall of the vertical plate is installed between the first grinding wheel and the second grinding wheel, and the output ends of the double-headed forward and reverse motor are respectively connected with the end surfaces of the first grinding wheel and the second grinding wheel through couplings, and the end surfaces of the first grinding wheel and the second grinding wheel extend to the outside of the end surface of the vertical plate, and the extension distance is one millimeter, and the second pressing block assembly comprises a second pressing block arranged above the bottom plate A hydraulic cylinder for controlling the up and down movement of the second pressure block is installed at the top of the second pressure block, and a second engaging groove adapted to the outer wall of the steel bar and slightly larger than the diameter of the steel bar is opened at the bottom of the second pressure block, and the second engaging grooves are multiple groups and equidistantly distributed at the bottom of the second engaging grooves, and the top wall of the second engaging groove is opened, and the outer wall of the second pressure block is symmetrically provided with transmission rods extending to the inside of the second pressure block, and the end faces of the two groups of the transmission rods are fixedly connected with driven gears, and a dust removal assembly is arranged inside the integrated cutting and grinding assembly, and the dust removal assembly includes two sides of the vertical plate and the air outlet end is connected to the external exhaust system A bellows, wherein suction fan blades are installed inside the bellows, and the suction fan blades are transmission-connected to the output ends of the double-headed forward and reverse motors through a transmission shaft, a transmission turntable, and a transmission belt. A connecting shaft is connected between the transmission turntables of the two groups of suction fan blades, and a first turntable is fixedly sleeved on the outer wall of the connecting shaft. One side of the first turntable is transmission-connected to a second turntable installed on the inner wall of the vertical plate through a transmission belt, and an end of the second turntable is connected to a driving rod through a coupling, and the other end of the driving rod extends to the outside of the vertical plate and is fixedly connected to a driving gear, and the vertical moving direction of the driving gear is at the same axial position as the driven gear.

2. The steel bar forming equipment for construction according to claim 1, characterized in that: The first pressing block assembly includes a first pressing block arranged above the feeding conveyor line. A hydraulic cylinder for controlling the up and down movement of the first pressing block is installed at the top end of the first pressing block. And a first engaging groove adapted to the outer wall of the steel bar and slightly larger than the diameter of the steel bar is formed at the bottom end of the first pressing block. There are multiple groups of the first engaging grooves and they are equidistantly distributed at the bottom end of the first pressing block.

3. The steel bar forming equipment for construction according to claim 2, characterized in that: A cavity is formed inside the second pressing block. Two groups of sprockets are symmetrically installed inside the cavity. The end faces of the two groups of sprockets are respectively connected to the ends of the two groups of transmission rods through couplings. Chains are meshed with the outer walls of the two groups of sprockets. And a limiting plate fixedly connected to the inner wall of the cavity is arranged between the inner sides of the two groups of sprockets at both ends of the chain. The bottom end of the limiting plate is horizontally slidably connected and vertically limit-connected to a fixing block fixedly connected to the top end of the chain link bone. And a connecting block is fixedly connected to the bottom end of the chain link bone. A driven plate slidably connected to the inner wall of the cavity is fixed to the bottom end of the connecting block. And a pressing plate with the bottom end face extending to the opening of the second engaging groove is fixed to the bottom end of the driven plate.

4. The steel bar forming equipment for construction according to claim 3, characterized in that: A bending degree screening component is arranged inside the second engaging groove. The bending degree screening component includes an arc plate arranged outside the inner wall of the second engaging groove. And a return spring connected to the inner wall of the second engaging groove is installed on the inner end face of the arc plate. A top rod spaced from the inner wall of the second engaging groove is also fixedly connected to the inner side of the arc plate. And the spacing is set according to the requirements of the bending degree of the steel bar. A pressure sensor is installed on the end face of the second engaging groove on the outer side of the top rod. And the pressure sensor is electrically connected to the electromagnetic valve through a single-chip microcomputer.

5. A method for using the steel bar forming equipment for construction, characterized in that using the steel bar forming equipment for construction according to any one of claims 1-4, and the process includes the following steps: S1. First, feed the long steel bar through the feeding component until the end of the steel bar moves onto the discharging component and the distance between the end of the steel bar on the discharging component and the cutting platform is the set cutting length; S2. Then, start the cutting and grinding integrated component, the hydraulic cylinder of the first pressing block assembly and the hydraulic cylinder of the second pressing block assembly, so that both the first pressing block and the second pressing block can press and limit the steel bar. At the same time, the cutting tool moves downward to realize the cutting of the steel bar; S3. Furthermore, make the cutting and grinding integrated component continue to move downward and start the grinding component until the grinding wheel stops moving when it moves to the cutting end of the steel bar. At this time, the grinding wheel can realize the grinding of the cutting end of the steel bar. And during the grinding, use the second pressing block assembly to drive the cut steel bar to rotate. While improving the grinding quality, use the rotation of the steel bar to detect its bending degree. This process is implemented by the bending degree screening component; S4. Finally, the steel bars with unqualified camber will directly fall and discharge through the opened electromagnetic valve, while the qualified steel bars will be discharged from the end of the discharge component under the extrusion of the subsequent steel bars.

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