A reinforcing bar straightening and cutting machine

Abstract

The present application provides a reinforcing steel straightening and cutting machine, which comprises a base with a table, the table is provided with a first traction unit, a pretreatment rust removal unit, a straightening unit, a second traction unit, a cutting unit and a collecting unit in sequence along a straight line; the pretreatment rust removal unit comprises a rust scraping mechanism, an anti-rust mechanism and a polishing and scraping mechanism arranged along the working direction; the pretreatment rust removal unit is used for scraping the rust of reinforcing steel, applying rust removal liquid and polishing and scraping the rust removal liquid; the first traction unit and the second traction unit are used for inputting the reinforcing steel and serving as the power source of the anti-rust mechanism; the straightening unit, the cutting unit and the collecting unit are used for straightening the reinforcing steel, cutting the straightened reinforcing steel in a fixed length and collecting the cut reinforcing steel respectively. The present application can solve the problems that the existing reinforcing steel straightening and cutting machine cannot pretreat the reinforcing steel before the reinforcing steel enters the straightening drum and the distance between the adjusting components needs to be adjusted again when the reinforcing steel with a large diameter is straightened.

Description

Technical Field

[0001] This application relates to a steel bar straightening and cutting machine, belonging to the technical field of building processing equipment. Background Technology

[0002] As is widely known, straightening and cutting rebar is an essential part of rebar processing. It is generally available in fully automatic and semi-automatic versions, facilitating the further recycling of rebar and saving resources and economic costs. Rebar straightening and cutting machines are effective tools used for cutting rebar, primarily in the construction of buildings, bridges, tunnels, power stations, and large-scale water conservancy projects for straightening and cutting rebar.

[0003] Currently, existing straightening and cutting machines mainly consist of a straightening drum, a traction mechanism, a cutting mechanism, a rebar length-fixing frame, a machine frame, and a drive unit. During rebar straightening and cutting operations, the straightening drum rotates at high speed to straighten the passing rebar. While this step effectively straightens and cuts the rebar, the rebar cannot be pre-treated to remove rust before entering the straightening drum. This results in rust adhering to the inside of the straightening drum after straightening, which is difficult to remove. Furthermore, rebars come in various diameters, and straightening large-diameter rebars requires readjusting the spacing of the modulation components, making the operation cumbersome. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of related technologies, this application provides a rebar straightening and cutting machine, which can not only better perform rust removal and rust prevention pretreatment on rebar, effectively protect the straightening mechanism inside the straightening unit and avoid rust adhesion, but also change the spacing between the upper and lower straightening wheels of the straightening unit to adapt to the entry and straightening of large-diameter rebar, making operation simpler and more convenient.

[0005] The technical solution adopted by this application to solve its technical problem is:

[0006] A steel bar straightening and cutting machine includes a base with a table, on which a first traction unit, a pretreatment and rust removal unit, a straightening unit, a second traction unit, a cutting unit, and a collecting unit are arranged sequentially along a straight line;

[0007] The pretreatment rust removal unit includes a rust scraping mechanism, a rust prevention mechanism, and a grinding and wiping mechanism arranged along the working direction; the rust scraping mechanism, the rust prevention mechanism, and the grinding and wiping mechanism are respectively used to scrape off the surface of the steel bar, so that the outer wall of the steel bar is fully coated with rust removal liquid and to grind the steel bar coated with rust removal liquid to remove the rust on the surface of the steel bar and wipe off the rust liquid on the surface of the steel bar after rust removal.

[0008] The first traction unit and the second traction unit are used to pull the reinforcing bars into the system and serve as the power source for the rust prevention mechanism; the straightening unit, the cutting unit and the collecting unit are respectively used to straighten the reinforcing bars, cut the straightened reinforcing bars to a fixed length and collect the cut reinforcing bars.

[0009] In the steel bar straightening and cutting machine described above, the rust scraping mechanism may optionally include a scraping component and a collecting component arranged vertically and connected to each other.

[0010] The scraping assembly includes a scraping cylinder and a number of cage scraping openings arranged in a straight line inside the scraping cylinder. Each cage scraping opening is composed of a number of scrapers arranged in a circular array at equal intervals. Each scraper is elastically connected to the inner wall of the scraping cylinder. The end of the scraper facing the first traction unit is inclined away from the inner wall of the scraping cylinder. The scrapers of two adjacent cage scraping openings are staggered in the circumferential direction.

[0011] The collection assembly includes a loading barrel, and the bottom end of the scraper cylinder has a plurality of discharge ports, each discharge port corresponding to the discharge end of each of the cage scraper openings, and the loading barrel is located at the bottom end of the discharge ports.

[0012] As described above, the rebar straightening and cutting machine may optionally include an extension cylinder fixedly connected to one end of the scraper cylinder facing away from the feeding direction. The inner wall of the extension cylinder is provided with a wetted cotton brush. One end of the extension cylinder is connected to at least one injection cylinder. The other end of each injection cylinder is slidably connected to a piston column. The outer end of each piston column is elastically connected to the outer side of the injection cylinder end. The first traction unit synchronously and at a fixed frequency drives all the piston columns to slide inward against the elastic force. Each injection cylinder is connected to a liquid supply tank.

[0013] Optionally, in the rebar straightening and cutting machine described above, the rust prevention mechanism further includes a drip collection bucket disposed at the bottom end of the extension cylinder, the top end of the drip collection bucket being connected to the bottom end of the extension cylinder, and the drip collection bucket also being connected to the liquid supply bucket.

[0014] Optionally, in the rebar straightening and cutting machine described above, the grinding and wiping mechanism includes a stand fixedly connected to the top of the table. A first clamping plate is slidably connected to two opposite sides of the end of the stand facing the feeding direction. The two first clamping plates can be joined together to form a first annular clamping cylinder. A second clamping plate is slidably connected to two opposite sides of the end of the stand facing away from the feeding direction. The two second clamping plates can be joined together to form a second annular clamping cylinder. Each first clamping plate has a semi-annular abrasive block on its inner wall, and each second clamping plate has a semi-annular brush head on its inner wall.

[0015] As described above, the rebar straightening and cutting machine may optionally have the same structure for the first traction unit and the second traction unit, both including an auxiliary frame fixedly connected to the top of the table. A horizontal bar perpendicular to the working direction is fixedly connected to the upper and lower parts of the auxiliary frame. An inner groove is opened on the inner side of the horizontal bar. A slider is slidably connected to each of the two opposite sides of the inner groove. The outer sides of the two sliders are elastically connected to the inner walls of the two opposite sides of the inner groove. A vertical rod is fixedly connected between the upper and lower corresponding sliders. An electric roller is installed in the middle of each of the two vertical rods.

[0016] Each of the two uprights of the first traction unit is also fixedly connected to a compression plate on its inner side. The two compression plates are respectively disposed at the ends of the piston rods and act on the corresponding piston rods through axial thrust.

[0017] Optionally, in the rebar straightening and cutting machine described above, the straightening unit includes a straightening mechanism. The straightening mechanism includes an outer plate frame fixedly connected to the top of the table. An open column is rotatably connected to the middle of each end of the outer plate frame along the working direction. An inner plate frame is fixedly connected between two open columns. An embedded plate is slidably connected to the middle of the top and bottom ends of the inner plate frame. Multiple wheel frames are equidistantly fixedly connected to the inner side of the embedded plate. Straightening wheels are rotatably connected to each wheel frame. The straightening wheels at the top and bottom are aligned vertically and arranged crosswise. A first driven wheel is fixedly connected to the middle of each open column. Each first driven wheel is drivenly connected to a first driving wheel. A central shaft parallel to the working direction is fixedly connected to the inner side of each first driving wheel. The inward ends of the two central shafts are respectively fixedly connected to the two output ends of a double-headed motor fixedly connected to the outside of the outer plate frame.

[0018] Optionally, in the rebar straightening and cutting machine described above, the straightening unit further includes a spacing adjustment mechanism for changing the distance between the upper and lower straightening wheels. The spacing adjustment mechanism includes an outer plate fixedly connected to both ends along the working direction on the outer side of the embedded plate. A threaded post is threadedly connected to each of the two opposite sides of the outer plate. The inner sides of the two threaded posts are respectively fixedly connected to the top and bottom ends of a connecting rod. A worm gear is fixedly connected to the lower part of each of the two connecting rods. An auxiliary frame is fixedly connected between the top and bottom ends of the inner plate frame and on both sides in the working direction. The left and right sides of the inner bottom ends of the two auxiliary frames are rotatably connected to the outer sides of the threaded posts.

[0019] The inner plate frame has two opposite lower sides with rotatably connected extension rods. Each extension rod is fixedly connected to a worm gear on both sides in the working direction. The outer side of each worm wheel is meshed with the corresponding worm gear. The two extension rods are fixedly connected to a second driving wheel and a second driven wheel at the end facing the feeding direction. The second driving wheel and the second driven wheel are mutually connected. A drive motor is fixedly connected to one end of the inner plate frame. The axial end of the second driving wheel is fixedly connected to the output end of the drive motor.

[0020] As described above, the rebar straightening and cutting machine may optionally include a collection unit comprising a placement frame fixedly connected to one end of the table facing away from the feeding direction, an inclined drop plate fixedly connected to the top center of the placement frame, a groove provided on one side of the top of the placement frame, the groove being located on the side of the inclined drop plate, a load-bearing plate slidably connected inside the groove, and the bottom end of the load-bearing plate being elastically connected to the bottom wall of the groove.

[0021] Optionally, in the rebar straightening and cutting machine described above, the cutting unit includes a stable frame fixedly connected to the top of the table. A crossbeam perpendicular to the working direction is fixedly connected to both the upper and lower parts of the stable frame. A cutter disc is fixedly connected to one side of the crossbeam, and a cutter holder is slidably connected to the other side of the crossbeam. A cutting blade is fixedly connected to the inner center of the cutter holder. The upper and lower parts of the cutter holder are elastically connected to the inner upper and lower ends of the cutter disc. A cylinder is fixedly connected to the side of the stable frame perpendicular to the working direction. A push plate is fixedly connected to the telescopic end of the cylinder. A push rod parallel to the working direction is fixedly connected to one outer end of the push plate. The push rod is located on the top of the inclined plate, away from the groove, and the cylinder is arranged opposite to the groove.

[0022] Compared to related technologies, the rebar straightening and cutting machine provided in this application, on the one hand, achieves pre-treatment and rust removal of the rebar by setting up a pre-treatment rust removal unit with a rust scraping mechanism, a rust prevention mechanism, and a grinding and wiping mechanism, effectively protecting the straightening components inside the straightening unit and preventing rust adhesion. On the other hand, by utilizing the distance adjustment mechanism of the straightening unit, the distance between the upper and lower straightening wheels can be increased to accommodate the entry and straightening of large-diameter rebars, making operation simpler and more convenient. Attached Figure Description

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figures 1-4 This is a perspective view of a steel bar straightening and cutting machine from different angles according to an embodiment of this application.

[0025] Figure 5 This is a perspective view of the first traction unit in a steel bar straightening and cutting machine according to an embodiment of this application.

[0026] Figures 6-7 This is a structural schematic diagram of the rust scraping mechanism and mounting platform of the pretreatment rust removal unit in a steel bar straightening and cutting machine according to one embodiment of this application.

[0027] Figures 8-9 This is a schematic diagram of the rust prevention mechanism and mounting platform of the pretreatment rust removal unit in a steel bar straightening and cutting machine according to one embodiment of this application.

[0028] Figure 10 This is a perspective view of the grinding and wiping mechanism of the pretreatment rust removal unit in a steel bar straightening and cutting machine according to an embodiment of this application.

[0029] Figures 11-13 This application provides a schematic diagram of the structure of a straightening unit in a rebar straightening and cutting machine according to one embodiment.

[0030] Figure 14 This application provides a perspective view of a cutting unit in a rebar straightening and cutting machine according to one embodiment.

[0031] Figure 15 This application provides a perspective view of a collection unit in a rebar straightening and cutting machine according to one embodiment.

[0032] Explanation of the meaning of the labels in the attached diagram:

[0033] 1-Base; 11-Tabletop;

[0034] 21-First traction unit; 211-Auxiliary frame; 212-Crossbar; 212-1-Inner groove; 213-Slider; 2131-Third spring; 214-Upright pole; 2141-Extrusion plate; 215-Electric roller; 22-Second traction unit;

[0035] 3-Pre-treatment rust removal unit; 31-Rust scraping mechanism; 311-Scraper cylinder; 311-1-Discharge port; 312-Cage scraper; 3121-Scraper; 3122-First spring; 313-Loading bucket; 3131-Discharge hopper; 32-Rust prevention mechanism; 321-Extension cylinder; 3211-Immersed cotton brush; 322-Injection cylinder; 323-Piston column; 3231-Second spring; 324-Supply tank; 324-1-Inlet; 325-Drip collection tank; 33-Grinding and wiping mechanism; 331-Upright frame; 332-First clamping plate; 3321-Semi-ring abrasive block; 333-Second clamping plate; 3331-Semi-ring brush head; 34-Mounting platform;

[0036] 4-Straightening unit; 41-Straightening mechanism; 411-Outer plate frame; 4111-Outer sheath; 412-Opening column; 4121-First driven wheel; 4122-First driving wheel; 413-Inner plate frame; 4131-Auxiliary frame; 414-Embedded plate; 415-Wheel frame; 4151-Straightening wheel; 416-Central shaft; 417-Dual-head motor; 418-Extension rod; 4181-Second driving wheel; 4182-Second driven wheel; 4183-Worm gear; 42-Adjusting mechanism; 421-Outer plate; 422-Threaded column; 423-Connecting rod; 424-Worm gear; 425-Drive motor;

[0037] 5-Cutting unit; 51-Stable frame; 52-Crossbeam; 53-Cutter head; 54-Cutter holder; 541-Cutting blade; 542-Fourth spring; 55-Cylinder; 56-Push plate; 57-Push rod;

[0038] 6-Collection unit; 61-Placement rack; 62-Inclined drop plate; 63-Groove; 631-Bearing plate; 632-Fifth spring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0040] To facilitate the description of the embodiments of this application, the description of direction or orientation in the accompanying drawings is explained. The arrows in the drawings indicate the working direction, representing the direction of steel bar feeding and discharging. This working direction can also be defined as the front and rear directions of the entire equipment, that is, corresponding to "front, rear or front and rear sides / ends / parts" in various embodiments and implementations. The "left, right or left and right sides / ends / parts" in the corresponding embodiments and implementations are the two sides perpendicular to the working direction. The distinction between left and right is determined in the body position along the working direction, that is, the left and right sides when standing with the back to the material feeding direction are the left and right sides.

[0041] In related technologies, rebar straightening and cutting machines have two main drawbacks. First, they cannot pre-treat and remove rust from the rebar before it enters the straightening drum, resulting in rust adhering to the inside of the straightening components after straightening, which is difficult to remove. Second, straightening large-diameter rebars requires readjusting the spacing of the straightening components, making the operation cumbersome.

[0042] In view of this, refer to Figures 1 to 4The present application aims to provide a steel bar straightening and cutting machine, including a base 1 with a table, on which a first traction unit 21, a pretreatment and rust removal unit 3, a straightening unit 4, a second traction unit 22, a cutting unit 5 and a collecting unit 6 are arranged in sequence along a straight line;

[0043] The pretreatment rust removal unit 3 includes a rust scraping mechanism 31, a rust prevention mechanism 32, and a grinding and wiping mechanism 33 arranged along the working direction. The rust scraping mechanism 31, the rust prevention mechanism 32, and the grinding and wiping mechanism 33 are respectively used to scrape off the surface of the steel bar, so that the outer wall of the steel bar is fully coated with rust removal liquid and to grind the steel bar coated with rust removal liquid, grind off the rust on the surface of the steel bar, and wipe off the rust liquid on the surface of the steel bar after rust removal.

[0044] The first traction unit 21 and the second traction unit 22 are used to pull the reinforcing bars into the system and serve as the power source for the rust prevention mechanism 32; the straightening unit 4, the cutting unit 5, and the collecting unit 6 are used to straighten the reinforcing bars, cut the straightened reinforcing bars to a fixed length, and collect the cut reinforcing bars, respectively.

[0045] Optionally, refer to Figure 5 The first traction unit 21 provided in this application embodiment includes an auxiliary frame 211 fixedly connected to the top of the platform 11. A horizontal bar 212 perpendicular to the working direction is fixedly connected to the upper and lower parts of the auxiliary frame 211. An inner groove 212-1 is opened on the inner side of the horizontal bar 212. A slider 213 is slidably connected to the two opposite sides of the inner groove 212-1. The outer sides of the two sliders 213 are elastically connected to the inner walls of the two opposite sides of the inner groove 212-1. A vertical rod 214 is fixedly connected between the upper and lower corresponding sliders 213. An electric roller 215 is installed in the middle of the two vertical rods 214. A pressing plate 2141 is also fixedly connected to the upper inner side of the two vertical rods 214. The two pressing plates 2141 are respectively set at the ends of the piston column 323 and act on the corresponding piston column 323 through axial thrust.

[0046] The second traction unit 22 provided in this embodiment has a structure that is basically the same as that of the first traction unit 21, except that the two uprights 214 of the second traction unit 22 do not have compression plates 2141. In terms of position, the first traction unit 21 and the second traction unit 22 are respectively located on the front and rear sides of the top of the platform 11.

[0047] Regarding the first traction unit 21 in the embodiments of this application, specifically, refer to Figure 5The auxiliary frame 211 is fixedly connected to the front of the top of the table 11. The upper and lower parts of the auxiliary frame 211 are fixedly connected to the crossbars 212. The inner side of the crossbars 212 is provided with an inner groove 212-1. The left and right sides of the inner grooves 212-1 are slidably connected to the sliders 213. The outer side of the left and right sliders 213 is fixedly connected to one end of the third spring 2131, and the upper and lower sliders 213 correspond one to one. The other end of the third spring 2131 is connected to the inner wall of the left and right sides of the inner groove 212-1 respectively. The inner side of the upper and lower sliders 213 is fixedly connected to the top and bottom ends of the uprights respectively. The middle part of the uprights 214 is equipped with electric rollers 215. The upper inner side of the left and right uprights 214 at the front end is fixedly connected to the extrusion plate 2141.

[0048] In practical use, the coiled steel bar is first transported by the traction unit. The electric roller 215 in the traction unit continuously drives the steel bar into the traction unit by rotating inward. At the same time, when the steel bar enters between the two electric rollers 215, the large-diameter steel bar will squeeze the electric roller 215, causing the electric roller 215 to move to both sides due to the sliding relationship between the connected upright 214, slider 213 and inner groove 212-1. This makes the traction unit more adaptable to the input of steel bars with larger diameters. In addition, the rebound effect of the third spring 2131 connected to the slider 213 can also clamp and stick to the steel bar, making the steel bar transport more stable.

[0049] Optionally, the rust-scraping mechanism 31 provided in this application embodiment includes a scraping component and a collecting component arranged vertically and connected to each other;

[0050] The scraping assembly includes a scraper cylinder 311 and a number of cage scraper openings 312 arranged in a straight line inside the scraper cylinder 311. Each cage scraper opening 312 is composed of a number of equally spaced annularly arranged scrapers 3121. Each scraper 3121 is elastically connected to the inner wall of the scraper cylinder 311. The end of the scraper 3121 facing the first traction unit 21 is inclined away from the inner wall of the scraper cylinder 311. The scrapers 3121 of two adjacent cage scraper openings 312 are staggered in the circumferential direction.

[0051] The collection assembly includes a loading bucket 313, and a number of discharge ports 311-1 are provided at the bottom of the scraper cylinder 311. The discharge ports 311-1 correspond to the discharge end of each cage scraper 312, and the loading bucket 313 is located at the bottom of the discharge ports 311-1.

[0052] It should be noted that the loading barrel 313 described in this application embodiment can also be connected to the unloading port 311-1 via the unloading hopper 3131. Specifically, the large end of the unloading hopper 3131 is fixedly connected to the unloading port 311-1, and the small end of the unloading hopper 3131 is fixedly connected to the inlet of the loading barrel 313.

[0053] Optionally, the rust prevention mechanism 32 provided in this application embodiment includes an extension cylinder 321 fixedly connected to one end of the scraper cylinder 311 facing away from the feeding direction. The inner wall of the extension cylinder 321 is provided with a wetted cotton brush 3211. The extension cylinder 321 is connected to one end of at least one injection cylinder 322. The other end of each injection cylinder 322 is slidably connected to a piston column 323. The outer end of each piston column 323 is elastically connected to the outer side of the end of the injection cylinder 322. The first traction unit 21 synchronously and at a fixed frequency drives all piston columns 323 to slide inward against the elastic force. Each injection cylinder 322 is connected to a liquid supply tank 324.

[0054] Optionally, the rust prevention mechanism 32 provided in this application embodiment further includes a drip collection tank 325 disposed at the bottom end of the extension cylinder 321. The top end of the drip collection tank 325 is connected to the bottom end of the extension cylinder 321, and the drip collection tank 325 is also connected to the liquid supply tank 324.

[0055] Regarding the rust-scraping mechanism 31 and the rust-preventing mechanism 32 in the embodiments of this application, specifically, refer to... Figure 6-9 The scraper cylinder 311 is fixedly connected to the upper middle part of the mounting platform 34. The scraper cylinder 311 has cage scraper openings 312 on both its front and rear sides. Each cage scraper opening 312 is composed of multiple equally spaced annular scrapers 3121. The front side of each scraper 3121 is rotatably connected to the inner wall of the scraper cylinder 311. The outward side of each scraper 3121 is connected to the inner wall of the scraper cylinder 311 via a first spring 3122. A discharge port 311-1 is fixedly connected to the bottom end of the scraper cylinder 311. A loading bucket 313 is located at the bottom end of the discharge port 311-1. The loading bucket 313 is placed in the middle of the bottom wall of the mounting platform 34, utilizing the scrapers... 3121 The surface of the steel bar is scraped to remove the adhering material, which is then collected and discharged through the loading tank 313. An extension tube 321 is fixedly connected to the rear of the scraper tube 311. A wetted cotton brush 3211 is adhered inside the extension tube 321. Injection tubes 322 are fixedly connected to both the left and right sides of the mounting platform 34. A piston column 323 is slidably connected to the front side of each injection tube 322. The front end of each piston column 323 is connected to the outer side of the front end of the injection tube 322 through a second spring 3231. The rear end of the injection tube 322 is connected to the top of the extension tube 321 through a pipeline. The wetted cotton brush 3211 is used to apply rust remover to the entire outer wall of the steel bar. A supply tank 324 is fixedly connected to both the left and right sides of the mounting platform 34. A lift pump is installed inside the supply tank 324. The lift pump is connected to the rear top of the corresponding injection tube 322 on both the left and right sides through a pipeline. An inlet 324-1 is fixedly connected to the front top of each supply tank 324. The bottom end of the extension cylinder 321 is fixedly connected to a drip collection tank 325. The top end of the drip collection tank 325 is connected to the bottom end of the extension cylinder 321 through a pipe. A filter plate is installed inside the drip collection tank 325. The lower left and right sides of the drip collection tank 325 are connected to the rear end of the liquid supply tank 324 through a delivery pipe, and a one-way valve is fixedly connected to each delivery pipe.

[0056] In practical use, the reinforcing bars input by the traction unit immediately enter the scraper cylinder 311. Two cage scraper openings 312 are provided inside the scraper cylinder 311. Multiple scrapers 3121 on the cage scraper openings 312 scrape away rust from the surface of the reinforcing bars. The scrapers 3121 on the front and rear cage scraper openings 312 are distributed to complement each other; that is, the gap between the two front scrapers 3121 is the position of the rear scraper 3121, ensuring better and more comprehensive rust removal from the surface of the reinforcing bars. Due to the beveled design of the scrapers 3121, the scraped rust slides down and enters the discharge port 311-1, where it converges and enters the loading bucket 313 for collection. Simultaneously, the action of the first spring 3122 ensures that the scrapers 3121 are more tightly pressed against the outer wall of the reinforcing bars. After this step, the reinforcing bars are continuously conveyed backwards to the extension... After entering the extension cylinder 321, the rust remover is quickly applied to the surface of the reinforcing steel using a cotton brush 3211 soaked in rust remover solution. The rust remover is applied by rotating the extrusion plate 2141 in the front traction unit, which in turn strikes the piston column 323 and slides it backward in the injection cylinder 322. This causes the rust remover solution, delivered by the pump in the supply tank 324, to be injected into the extension cylinder 321, allowing it to drip onto the cotton brush 3211. This keeps the cotton brush 3211 continuously moist and provides application. Meanwhile, any leaked rust remover solution is collected in a collection tank through a pipe at the bottom of the extension cylinder 321. The dripping solution is also filtered through a filter screen in the collection tank. The rust remover solution in the collection tank is then returned to the supply tank 324 via a delivery pipe for reuse, thus saving resources.

[0057] Optionally, the grinding and wiping mechanism 33 provided in this application embodiment includes a stand 331 fixedly connected to the top of the table 11. A first clamping plate 332 is slidably connected to two opposite sides of the end of the stand 331 facing the feeding direction. The two first clamping plates 332 can be joined together to form a first annular clamping cylinder. A second clamping plate 333 is slidably connected to two opposite sides of the end of the stand 331 facing away from the feeding direction. The two second clamping plates 333 can be joined together to form a second annular clamping cylinder. The inner wall of each first clamping plate 332 is provided with a semi-annular abrasive block 3321, and the inner wall of each second clamping plate 333 is provided with a semi-annular brush head 3331.

[0058] Regarding the polishing and erasing mechanism 33 in the embodiments of this application, specifically, refer to... Figure 10The stand 331 is fixedly connected to the front of the top of the table 11. The left and right sides of the front of the stand 331 are slidably connected to the first clamping plate 332. The left and right sides of the rear of the stand 331 are slidably connected to the second clamping plate 333. The upper and lower parts of the inward side of the first clamping plate 332 and the second clamping plate 333 are fixedly connected to the connecting arms. The surfaces of the connecting arms facing each other are provided with magnets. The inner side of the first clamping plate 332 is bonded with a semi-ring frosting block 3321. The inner side of the second clamping plate 333 is bonded with a semi-ring brush head 3331.

[0059] In practical use, the steel bars coated by the extension tube 321 are transported through a certain distance after being exposed to the outside, and then enter the grinding and wiping unit. The steel bars coated with rust remover are ground by the first clamping plate 332 and the semi-circular abrasive block 3321 at the front of the grinding and wiping unit. After grinding, the steel bars are wiped by the semi-circular brush head 3331 of the second clamping plate 333 at the rear to ensure that there is no rust remover on the surface of the steel bars.

[0060] Optionally, the straightening unit 4 provided in this application embodiment includes a straightening mechanism 41. The straightening mechanism 41 includes an outer plate frame 411 fixedly connected to the top of the table 11. An open column 412 is rotatably connected to the middle of both ends of the outer plate frame 411 along the working direction. An inner plate frame 413 is fixedly connected between the two open columns 412. An embedded plate 414 is slidably connected to the middle of the top and bottom ends of the inner plate frame 413. A plurality of wheel frames 415 are fixedly connected at equal intervals on the inner side of the embedded plate 414. A plurality of wheel frames 415 are rotatably connected to the wheel frames 415. There is a straightening wheel 4151, which is located at the top and bottom and is aligned vertically and arranged crosswise. A first driven wheel 4121 is fixedly connected to the middle of each perforated column 412. Each first driven wheel 4121 is connected to a first driving wheel 4122. A central shaft 416 parallel to the working direction is fixedly connected to the inner side of each first driving wheel 4122. The inward end of the two central shafts 416 is fixedly connected to the two output ends of the double-headed motor 417 fixedly connected to the outer side of the outer frame 411.

[0061] It is understood that the outer frame 411 described in this embodiment serves not only as the mounting base for the straightening mechanism 41, but also as its protective housing. It should be noted that an outer sheath 4111 can be further installed on the right side of the outer frame, and the dual-head motor 417, central shaft 416, second drive wheel 4181, second belt, second driven wheel 4182, and perforated post 412 are all located inside the outer sheath 4111.

[0062] Optionally, the straightening unit 4 provided in this application embodiment further includes a spacing adjustment mechanism 42 for changing the spacing between the upper and lower straightening wheels 4151, used to adjust the required straightening spacing of large-diameter steel bars. The spacing adjustment mechanism 42 includes an outer plate 421 fixedly connected to the outer side of the embedded plate 414 at both ends along the working direction. A threaded post 422 is threadedly connected to each of the two opposite sides of the outer plate 421. The inner sides of the two threaded posts 422 are respectively fixedly connected to the top and bottom ends of a connecting rod 423. A worm gear 424 is fixedly connected to the lower part of each of the two connecting rods 423. An auxiliary frame 4131 is fixedly connected between the top and bottom ends of the inner plate frame 413 and on both sides in the working direction. The left and right sides of the inner bottom ends of the two auxiliary frames 4131 are rotatably connected to the outer sides of the threaded posts 422.

[0063] The lower parts of the two opposite sides of the inner plate frame are rotatably connected to the extension rods 418. The extension rods 418 are fixedly connected to a worm gear 4183 on both sides of the working direction. The outer side of each worm wheel 424 is meshed with the corresponding worm gear 4183. The ends of the two extension rods 418 facing the feeding direction are fixedly connected to the second driving wheel 4181 and the second driven wheel 4182 respectively. The second driving wheel 4181 and the second driven wheel 4182 are connected to each other for transmission. The end of the inner plate frame is fixedly connected to the drive motor 425. The axial end of the second driving wheel 4181 is fixedly connected to the output end of the drive motor 425.

[0064] Regarding the straightening unit 4 in the embodiments of this application, specifically, refer to... Figure 11-13The outer frame is fixedly connected to the rear top of the tabletop 11. Perforated columns 412 are rotatably connected to the middle of the front and rear sides of the outer frame. The outer wall of the inward-facing side of the perforated column 412 is fixedly connected to the middle of the front and rear sides of the inner frame. Embedded plates 414 are slidably connected to the middle of the top and bottom ends of the inner frame. Multiple wheel frames 415 are equidistantly fixed to the inward-facing side of each embedded plate 414. Straightening wheels 4151 are rotatably connected to each wheel frame 415. An outer plate 421 is fixedly connected to the front and rear of the outer side. Threaded posts 422 are threadedly connected to the left and right sides of the outer plate 421. The inner side of the threaded posts 422 is fixedly connected to the top and bottom ends of the connecting rod 423. Worm gears 424 are fixedly connected to the lower part of the connecting rod 423. An auxiliary frame 4131 is fixedly connected to the front and rear sides of the top and bottom ends of the inner plate frame. The left and right sides of the inner bottom end of the auxiliary frame 4131 are rotatably connected to the outer side of the threaded posts 422. Worms 4183 are meshed with the outer side of the worm gear 424. The worm gears 4183 are fixedly connected to the front and rear sides of the extension rod 418 respectively. The lower left and right sides of the inner plate frame are rotatably connected to the extension rod 418. The front ends of the left and right extension rods 418 are fixedly connected to the second driving wheel 4181 and the second driven wheel 4182 respectively. The second driving wheel 4181 and the second driven wheel 4182 are connected to each other by a belt. The front end of the second driving wheel 4181 is fixedly connected to the output end of the drive motor 425. The drive motor 425 is fixedly connected to the left front end of the inner plate frame. Each of the perforated columns is fixedly connected to a first driven wheel 4121. The first driven wheel 4121 is connected to the first driving wheel 4122 via a second belt. The first driving wheel 4122 is fixedly connected to a central shaft 416 on its inward side. The inward end of the central shaft 416 is fixedly connected to the front and rear output ends of the dual-head motor 417. The dual-head motor 417 is fixedly connected to the right side of the outer frame. An outer sheath 4111 is also installed on the right side of the outer frame.

[0065] In practical use, the steel bars that have undergone rust-proofing pretreatment then enter the straightening unit 4 for straightening. The straightening unit 4 is primarily straightened by a double-headed motor 417 driving the central shaft 416 and the first drive wheel 4122. The first drive wheel 4122 then drives the first driven wheel 4121 via a belt, which in turn drives the inner plate frame connected to the perforated column 412 to rotate at high speed. The wheel frame 415 and straightening wheel 4151 on the inner plate frame are used to straighten the steel bars. When the steel bar diameter is large, the drive motor 425 drives the second drive wheel 4181 to rotate. 4181 then drives the second driven wheel 4182 to rotate synchronously via a belt, which in turn drives the extended rod 418 connected to the second driving wheel 4181 and the second driven wheel 4182 to rotate synchronously. This causes the worm gear 4183 on the extended rod 4183 to drive the connecting rod 423 connected to the worm wheel 424 to rotate, thereby driving the threaded column 422 connected to the top and bottom ends of the connecting rod 423 to rotate. This causes the threaded plate 421 connected to the threaded column 422 to move outward, which in turn drives the embedded plate 414 connected to the outer plate 421 to move outward synchronously. This increases the distance between the upper and lower straightening wheels 4151, thus accommodating the entry and straightening of large-diameter steel bars.

[0066] Optionally, the cutting unit 5 provided in this application embodiment includes a stable frame 51 fixedly connected to the top of the table 11. The upper and lower parts of the stable frame 51 are both fixedly connected to a crossbeam 52 perpendicular to the working direction. A blade disc 53 is fixedly connected to one side of the crossbeam 52, and a blade holder 54 is slidably connected to the other side of the crossbeam 52. A cutting blade 541 is fixedly connected to the middle of the inner side of the blade holder 54. The upper and lower parts of the blade holder 54 are elastically connected to the upper and lower inner sides of the blade disc 53. A cylinder 55 is fixedly connected to the side of the stable frame 51 perpendicular to the working direction. A push plate 56 is fixedly connected to the telescopic end of the cylinder 55. A push rod 57 parallel to the working direction is fixedly connected to one outer end of the push plate 56. The push rod 57 is located on the top of the inclined plate 62 away from the groove 63, and the cylinder 55 is arranged opposite to the groove 63.

[0067] Regarding the cutting unit 5 in the embodiments of this application, specifically, refer to... Figure 14 The stabilizing frame 51 is fixedly connected to the rear side of the top of the table 11. The upper and lower parts of the stabilizing frame 51 are both fixedly connected to the crossbeam 53. A cutter head is fixedly connected to one side of the crossbeam 53. A cutter holder 54 is slidably connected to the other side of the crossbeam 52. A cutting blade 541 is fixedly connected to the middle of the inward side of the cutter holder 54. The upper and lower parts of the cutter holder 54 are connected to the inward side of the cutter head 53 through a fourth spring 542. A cylinder 55 is fixedly connected to the right rear end of the stabilizing frame 51. A push plate 56 is fixedly connected to the telescopic end of the cylinder 55. A push rod 57 is fixedly connected to the rear of the push plate 56.

[0068] In practical use, the straightened steel bar is fed into the cutting unit 5 through the output of the rear traction unit. The cylinder 55 in the cutting unit 5 drives the push plate 56 to press the knife holder 54, so that the cutting blade 541 on the knife holder 54 cuts the steel bar. The other side of the steel bar is in contact with the cutter disc 53. The cutter disc 53 serves as a pad to facilitate the rapid cutting of the steel bar. At the same time, a length measuring instrument can be installed inside the cutter disc 53 and the length can be measured using the length measuring instrument to control the drive assembly of the cutting blade 541 to perform fixed-length cutting.

[0069] Optionally, the collection unit 6 provided in this application embodiment includes a placement rack 61 fixedly connected to one end of the table 11 facing away from the feeding direction. An inclined drop plate 62 is fixedly connected to the middle of the top of the placement rack 61. A groove 63 is provided on one side of the top of the placement rack 61. The groove 63 is located on the side of the inclined drop plate 62. A load-bearing plate 631 is slidably connected inside the groove 63. The bottom end of the load-bearing plate 631 is elastically connected to the bottom wall of the groove 63.

[0070] Regarding the collection unit 6 in the embodiments of this application, specifically, refer to... Figure 15 The placement rack 61 is fixedly connected to the rear of the table 11. An inclined drop plate 62 is fixedly connected to the middle of the top of the placement rack 61. A groove 63 is provided on one side of the inclined drop plate 62. The groove 63 is opened on one side of the top of the placement rack 61. A load-bearing plate 631 is slidably connected inside the groove 63. The bottom end of the load-bearing plate 631 is connected to the bottom wall of the groove 63 through a fifth spring 632.

[0071] In practical use, while the cylinder 55 drives the push plate 56 to move, it also drives the push rod 57 connected to the push plate 56 to move synchronously. After the steel bar is cut, it will stop and fall onto the inclined drop plate 62. The push rod 57 pushes the steel bar down from the inclined surface of the inclined drop plate 62 and into the groove 63. The groove 63 is equipped with a load-bearing plate 631 connected to the fifth spring 632, which can play a buffering role during the stage of steel bar slippage.

[0072] The steel bar straightening and cutting machine provided in this application, based on the technical means of the above embodiments, can have the following beneficial effects:

[0073] 1. This application uses a scraper cylinder 311, a cage scraper opening 312, a scraper blade 3121, and a first spring 3122 to scrape rust off the surface of the conveyed steel bars. The scraper blades 3121 on the front and rear cage scraper openings 312 complement each other, allowing for more comprehensive rust removal from the steel bar surface. Due to the inclined design of the scraper blade 3121, the scraped rust will slide off and enter the discharge port 311-1, where it will converge and be collected in the loading bucket 313. At the same time, the first spring 3122 makes the scraper blade 3121 fit more closely to the outer wall of the steel bar, thus better pre-treating and removing rust from the steel bar.

[0074] 2. This application, by setting up an extension cylinder 321 and an impregnating cotton brush 3211, firstly utilizes the extrusion plate 2141 in the front traction unit to intermittently strike the piston column 323, squeezing the rust-removing liquid into the extension cylinder 321 through the injection cylinder 322, causing the rust-removing liquid to drip onto the impregnating cotton brush 3211. On the one hand, the surface of the input steel bar is quickly coated, and on the other hand, the impregnating cotton brush 3211 is kept continuously moist. At the same time, the leaked rust-removing liquid is collected and recycled through the collection bucket, saving resources. Combined with the subsequent grinding and wiping unit, the surface of the steel bar is further treated for rust removal and rust prevention, effectively protecting the straightening components inside the straightening unit 4 and preventing rust adhesion.

[0075] 3. This application sets up a drive motor 425, a second driving wheel 4181, a belt, a second driven wheel 4182, an extension rod 418, a worm gear 4183, a worm wheel 424, a connecting rod 423, a threaded column 422, and an outer plate 421 to drive the embedded plate 414 at the top and bottom ends to move outward synchronously, thereby increasing the distance between the upper and lower straightening wheels 4151, so as to accommodate the entry and straightening of large-diameter steel bars, making the operation simpler and more convenient.

[0076] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0077] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0078] It should be noted that in the description of this application, the terms "first" and "second" are used only for convenience in describing different components and should not be construed as indicating or implying a sequential relationship, relative importance, or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features.

[0079] The embodiments or implementation methods in this application are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0080] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A steel bar straightening and cutting machine, comprising a base with a table, characterized in that, The table surface is provided with a first traction unit, a pretreatment rust removal unit, a straightening unit, a second traction unit, a cutting unit, and a collection unit in sequence along a straight line; The pretreatment rust removal unit includes a rust scraping mechanism, a rust prevention mechanism, and a grinding and wiping mechanism arranged along the working direction; the rust scraping mechanism, the rust prevention mechanism, and the grinding and wiping mechanism are respectively used to scrape off the surface of the steel bar, so that the outer wall of the steel bar is fully coated with rust removal liquid and to grind the steel bar coated with rust removal liquid to remove the rust on the surface of the steel bar and wipe off the rust liquid on the surface of the steel bar after rust removal. The first traction unit and the second traction unit are used to pull the reinforcing bars into the system and serve as the power source for the rust prevention mechanism; the straightening unit, the cutting unit, and the collecting unit are respectively used to straighten the reinforcing bars, cut the straightened reinforcing bars to a fixed length, and collect the cut reinforcing bars. The rust removal mechanism includes a scraping component and a collecting component arranged vertically and connected to each other; The scraping assembly includes a scraping cylinder and a number of cage scraping openings arranged in a straight line inside the scraping cylinder. Each cage scraping opening is composed of a number of scrapers arranged in a circular array at equal intervals. Each scraper is elastically connected to the inner wall of the scraping cylinder. The end of the scraper facing the first traction unit is inclined away from the inner wall of the scraping cylinder. The scrapers of two adjacent cage scraping openings are staggered in the circumferential direction. The collection assembly includes a loading barrel, and the bottom end of the scraper cylinder is provided with a plurality of discharge ports, the discharge ports corresponding to the discharge end of each of the cage scraper openings, and the loading barrel is located at the bottom end of the discharge ports; The rust prevention mechanism includes an extension cylinder fixedly connected to one end of the scraper cylinder facing away from the feeding direction. The inner wall of the extension cylinder is provided with a wetted cotton brush. The extension cylinder is connected to one end of at least one injection cylinder. A piston column is slidably connected inside the other end of each injection cylinder. The outer end of each piston column is elastically connected to the outer side of the injection cylinder end. The first traction unit synchronously and at a fixed frequency drives all the piston columns to slide inward against the elastic force. Each injection cylinder is connected to a liquid supply tank. The grinding and wiping mechanism includes a stand fixedly connected to the top of the table. A first clamping plate is slidably connected to two opposite sides of the end of the stand facing the feeding direction. The two first clamping plates can be joined together to form a first annular clamping cylinder. A second clamping plate is slidably connected to two opposite sides of the end of the stand facing away from the feeding direction. The two second clamping plates can be joined together to form a second annular clamping cylinder. A semi-annular abrasive block is provided on the inner wall of each first clamping plate, and a semi-annular brush head is provided on the inner wall of each second clamping plate.

2. The steel bar straightening and cutting machine according to claim 1, characterized in that, The rust prevention mechanism also includes a drip collection bucket located at the bottom of the extension cylinder. The top of the drip collection bucket is connected to the bottom of the extension cylinder, and the drip collection bucket is also connected to the liquid supply bucket.

3. A steel bar straightening and cutting machine according to claim 1, characterized in that, The first traction unit and the second traction unit have the same structure, both including an auxiliary frame fixedly connected to the top of the platform. The upper and lower parts of the auxiliary frame are each fixedly connected to a horizontal bar perpendicular to the working direction. The inner side of the horizontal bar is provided with an inner groove. A slider is slidably connected to each of the two opposite sides of the inner groove. The outer sides of the two sliders are elastically connected to the inner walls of the two opposite sides of the inner groove. A vertical rod is fixedly connected between the upper and lower corresponding sliders. An electric roller is installed in the middle of each of the two vertical rods. Each of the two uprights of the first traction unit is also fixedly connected to a compression plate on its inner side. The two compression plates are respectively disposed at the ends of the piston rods and act on the corresponding piston rods through axial thrust.

4. A rebar straightening and cutting machine according to claim 1, 2, or 3, characterized in that, The straightening unit includes a straightening mechanism, which includes an outer plate frame fixedly connected to the top of the table. An open column is rotatably connected to the middle of each end of the outer plate frame along the working direction. An inner plate frame is fixedly connected between two open columns. An embedded plate is slidably connected to the middle of the top and bottom ends of the inner plate frame. Multiple wheel frames are equidistantly fixedly connected to the inner side of the embedded plate. Straightening wheels are rotatably connected to each wheel frame. The straightening wheels at the top and bottom are aligned vertically and arranged crosswise. A first driven wheel is fixedly connected to the middle of each open column. Each first driven wheel is driven by a first driving wheel. A central shaft parallel to the working direction is fixedly connected to the inner side of each first driving wheel. The inward ends of the two central shafts are respectively fixedly connected to the two output ends of a dual-head motor fixedly connected to the outside of the outer plate frame.

5. A steel bar straightening and cutting machine according to claim 4, characterized in that, The straightening unit also includes a distance adjustment mechanism for changing the distance between the upper and lower straightening wheels. The distance adjustment mechanism includes an outer plate fixedly connected to both ends of the outer side of the embedded plate along the working direction. A threaded post is threadedly connected to each of the two opposite sides of the outer plate. The inner sides of the two threaded posts are fixedly connected to the top and bottom ends of a connecting rod, respectively. A worm gear is fixedly connected to the lower part of each of the two connecting rods. An auxiliary frame is fixedly connected between the top and bottom ends of the inner plate frame and on both sides of the working direction. The left and right sides of the inner bottom ends of the two auxiliary frames are rotatably connected to the outer sides of the threaded posts. The inner plate frame has two opposite lower sides with rotatably connected extension rods. Each extension rod is fixedly connected to a worm gear on both sides in the working direction. The outer side of each worm wheel is meshed with the corresponding worm gear. The two extension rods are fixedly connected to a second driving wheel and a second driven wheel at the end facing the feeding direction. The second driving wheel and the second driven wheel are mutually connected. A drive motor is fixedly connected to one end of the inner plate frame. The axial end of the second driving wheel is fixedly connected to the output end of the drive motor.

6. A steel bar straightening and cutting machine according to claim 5, characterized in that, The collection unit includes a placement frame fixedly connected to one end of the table facing away from the feeding direction. An inclined drop plate is fixedly connected to the top center of the placement frame. A groove is provided on one side of the top of the placement frame. The groove is located on the side of the inclined drop plate. A load-bearing plate is slidably connected inside the groove. The bottom end of the load-bearing plate is elastically connected to the bottom wall of the groove.

7. A steel bar straightening and cutting machine according to claim 6, characterized in that, The cutting unit includes a stable frame fixedly connected to the top of the table. A crossbeam perpendicular to the working direction is fixedly connected to both the upper and lower parts of the stable frame. A cutter disc is fixedly connected to one side of the crossbeam, and a cutter holder is slidably connected to the other side. A cutting blade is fixedly connected to the inner center of the cutter holder. The upper and lower parts of the cutter holder are elastically connected to the inner upper and lower ends of the cutter disc. A cylinder is fixedly connected to the side of the stable frame perpendicular to the working direction. A push plate is fixedly connected to the telescopic end of the cylinder. A push rod parallel to the working direction is fixedly connected to one outer end of the push plate. The push rod is located on the top of the inclined drop plate, away from the groove, and the cylinder is arranged opposite to the groove.

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