Steel rust removal device for constructional engineering

Abstract

The invention relates to the technical field of steel rust removal, in particular to a steel rust removal device for constructional engineering, which comprises a machining table, two symmetrical supporting plates are fixedly connected to the top end of the machining table, one of the two supporting plates is located at a feeding position, and the other supporting plate is located at a discharging position; the detection mechanism comprises a first connecting ring capable of moving back and forth, detection frames are symmetrically arranged on the inner wall of the first connecting ring in a staggered mode, electromagnetic plates are arranged in the detection frames, the other ends of the electromagnetic plates are fixedly connected with plastic springs, and the other ends of the plastic springs are fixedly connected with permanent magnet blocks. According to the device, through the closed-loop design of detection, analysis, adjustment and execution, rust layer thickness detection and grinding parameters (pressure and speed) are dynamically associated, automatic and precise rust removal is achieved, and meanwhile the operation quality and efficiency are further improved through the pretreatment mechanism, the environment optimization design and the stable conveying structure.

Description

Technical Field

[0001] The invention relates to the technical field of steel rust removal, and in particular to a steel rust removal device for construction engineering. Background Art

[0002] In the construction industry, steel, a core structural material, faces surface corrosion that directly impacts the safety and durability of engineering structures. Round steel, a common steel type, is widely used in key areas such as reinforced concrete structures and steel support structures. Long-term exposure to damp and dusty construction environments can easily lead to the formation of an oxidized rust layer on its surface. If this rust layer is not promptly removed, it can reduce the bond between the round steel and concrete, lowering the structural load-bearing capacity and even posing a safety hazard. Therefore, efficient and thorough rust removal of round steel surfaces is a crucial pre-construction step and a fundamental process for ensuring project quality.

[0003] Existing rust removal equipment lacks a linkage and adaptive mechanism between rust layer thickness and grinding parameters. On the one hand, the equipment cannot accurately detect the thickness of the rust layer on the surface of round steel, and it is difficult to adjust the grinding strategy according to the actual situation of the rust layer; on the other hand, the grinding pressure and speed are mostly fixed settings. For round steel with uneven rust layer thickness, thick rust areas are prone to incomplete rust removal due to insufficient grinding force or speed, while thin rust areas may damage the round steel body due to excessive grinding. This mode lacks dynamic adjustment and can not only fail to ensure the consistency of rust removal effects, but also cause waste of round steel or equipment loss, seriously restricting the quality of rust removal operations. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a steel rust removal device for construction engineering, which can effectively solve the problem that the prior art lacks a linkage adaptive mechanism between rust layer thickness and grinding parameters.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a steel rust removal device for construction engineering, comprising: A processing table, the top of which is fixedly connected to two symmetrical support plates, one of which is located at the feed end and the other at the discharge end; The detection mechanism includes a first connecting ring that moves back and forth, the inner wall of the first connecting ring being symmetrically provided with detection frames, an electromagnetic plate being provided within the detection frame, the other end of the electromagnetic plate being fixedly connected to a plastic spring, the other end of the plastic spring being fixedly connected to a permanent magnet block, the other end of the permanent magnet block being fixedly connected to an arc-shaped magnet block, and the electromagnetic plate and the permanent magnet block being magnetically attracted to each other; A grinding and rust removal mechanism includes a second connecting ring that moves back and forth, the inner circumferential wall of the second connecting ring is rotatably connected to a swivel, a plurality of electric telescopic rods are arranged in a circular array on the inner circumferential wall of the swivel, the telescopic end of the electric telescopic rod is fixedly connected to a pressure sensor, and the other end of the pressure sensor is fixedly connected to an arc-shaped grinding plate.

[0006] Preferably, it also includes a moving mechanism, the moving mechanism includes two symmetrical first drive motors and second drive motors fixedly connected to the outer wall of the support plate near the discharge end, the first drive motor and the second drive motor are respectively fixedly connected at both ends with a first threaded rod and a second threaded rod, the outer walls of the first threaded rod and the second threaded rod are respectively threadedly sleeved with a first fixing bracket and a second fixing bracket, the first fixing bracket is fixedly connected to the outer wall of the first connecting ring, and the second fixing bracket is fixedly connected to the outer wall of the second connecting ring; The outer wall of the first connecting ring on one side away from the first fixing frame is fixedly connected to the first support block, the outer wall of the second connecting ring on one side away from the second fixing frame is fixedly connected to the second support block, and two symmetrical limit rods are fixedly connected between the two support plates, one of the limit rods slides through the first fixing frame and the second support block, and the other limit rod slides through the second fixing frame and the first support block.

[0007] Preferably, the outer walls of the two support plates are each provided with a circular groove, the inner walls of the two circular grooves are each provided with a sliding groove in a circumferential array, the inner wall of the sliding groove is fixedly connected to a connecting spring, the other end of the connecting spring is fixedly connected to a sliding block, the other end of the sliding block is fixedly connected to a mounting bracket, the outer wall of the mounting bracket is fixedly connected to a micro motor, the output end of the micro motor is fixedly connected to a rotating rod, and the outer wall of the rotating rod is fixedly connected to an extrusion wheel.

[0008] Preferably, a mounting ring is fixedly connected to the outer wall of the support plate at the feed position, and the mounting ring faces another mounting plate, and a plurality of cleaning brushes are fixedly connected to the inner peripheral wall of the mounting ring.

[0009] Preferably, the detection mechanism also includes a resistor plate embedded in the inner wall of the detection frame, an L-shaped conductive sheet is fixedly connected to the outer wall on the opposite side of the permanent magnet block and the electromagnetic plate, the L-shaped conductive sheet is in sliding contact with the resistor plate, the L-shaped conductive sheet and the resistor plate are electrically connected to a current detector, the current detector electrical signal is connected to a PLC controller to form a detection circuit, the PLC controller is electrically connected to the electromagnetic plate to form a control circuit, the PLC controller is connected to the micro motor electrical signal to form a processing circuit, and the PLC controller is connected to the first drive motor and the second drive motor electrical signal to form a start-stop circuit.

[0010] Preferably, the grinding and rust removal mechanism also includes a third drive motor fixedly connected to the outer wall of the first fixed frame, the output end of the third drive motor is fixedly connected to a gear, the side of the rotating ring close to the gear is fixedly connected to an outer gear ring, the outer gear ring is meshed with the gear, and the PLC controller is electrically connected to the third drive motor, the electric telescopic rod, and the pressure sensor to form a regulation loop.

[0011] Preferably, a fixing ring is fixedly connected to the outer wall of the first connecting ring on the side away from the gear, a water storage chamber is opened inside the fixing ring, and clean water is stored in the water storage chamber. A plurality of spray heads are fixedly connected to the inner circumferential wall of the first connecting ring, and the spray heads are inclined toward the direction of the arc-shaped grinding sheet. A water supply pump is fixedly connected to the top of the support plate near the discharging end, and a telescopic hose is fixedly connected to the output end of the water supply pump, and the other end of the telescopic hose is connected to the inside of the water storage chamber.

[0012] Preferably, the inner wall of the outer gear ring is fixedly connected to an annular exhauster, the discharge end of the annular exhauster is rotatably fixedly connected to a receiving ring, the interior of the receiving ring is fixedly connected to a telescopic discharge pipe, and the other end of the telescopic discharge pipe slides through the outer wall of the support plate.

[0013] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The device can accurately detect the thickness of the rust layer and provide data support for polishing. In its detection mechanism, after the electromagnetic plate is powered off, the arc-shaped magnetic block adsorbs the surface of the round steel under the elastic force of the plastic spring and its own magnetism. The thickness of the rust layer (non-magnetic material) determines the adsorption force (the thicker the rust layer, the weaker the adsorption force). When the electromagnetic plate is powered on, its magnetic force gradually increases. When the adsorption force between the arc-shaped magnetic block and the round steel is overcome, the permanent magnet drives the L-shaped conductive sheet to slide on the resistor plate, changing the circuit resistance. The current detector converts the resistance change into an electrical signal and transmits it to the PLC controller. The thickness of the rust layer is accurately judged by the difference in current values ​​(the thicker the rust layer, the smaller the current required), thereby avoiding blind polishing.

[0014] This device can adaptively adjust the grinding parameters according to the data detected by the detection mechanism to ensure the rust removal effect and protect the round steel. The PLC controller adjusts the grinding pressure and speed according to the detected rust layer thickness. In terms of grinding pressure, the extension amount of the electric telescopic rod is controlled (it extends longer when the rust is thick and extends shorter when the rust is thin). The pressure sensor monitors the pressure of the arc-shaped grinding disc on the round steel in real time and feeds back to the PLC controller to continuously fine-tune the electric telescopic rod to ensure that the pressure is adapted to the thickness of the rust layer. In terms of grinding speed, when the rust layer is thick, the speed of the third drive motor is increased, and the gear is engaged with the outer gear ring, so that the rotating ring drives the arc-shaped grinding disc to rotate at high speed. When the rust layer is thin, the speed of the third drive motor is reduced, and the grinding speed is reduced to avoid excessive grinding, so as to achieve thorough rust removal in the thick rust area and avoid damage to the round steel in the thin rust area.

[0015] The device can perform automated segmented processing, is suitable for long round steel and improves efficiency. In the moving mechanism, the first and second drive motors respectively drive the first and second threaded rods to rotate, so that the first connecting ring (detection mechanism) and the second connecting ring (grinding mechanism) move back and forth along the limit rod, covering the entire section of the round steel. The driving motor running time is pre-set to ensure that the detection and grinding cover the entire section of round steel, and the detection and grinding positions are precisely corresponding (synchronization is ensured by the sliding fit of the limit rod and the support block), so that long round steel can be processed without manual intervention in segmentation, realizing continuous automated operation.

[0016] Summary: Through the closed-loop design of "detection-analysis-adjustment-execution", this device dynamically links rust layer thickness detection with grinding parameters (pressure, speed), achieving automated and precise rust removal. At the same time, the pretreatment mechanism, environmental optimization design and stable conveying structure further improve the quality and efficiency of operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the support plate of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the detection mechanism of the present invention; Figure 4 For the present invention Figure 3 A magnified image of part A in the middle; Figure 5 Schematic diagram of the partial three-dimensional structure of the present invention Figure 1 ; Figure 6 Schematic diagram of the partial three-dimensional structure of the present invention Figure 2 .

[0019] Figure numerals: 1, processing table; 2, support plate; 3, detection mechanism; 31, first connecting ring; 32, detection frame; 33, electromagnetic plate; 34, plastic spring; 35, permanent magnet block; 36, arc-shaped magnetic block; 37, resistor plate; 38, L-shaped conductive sheet; 4, grinding and rust removal mechanism; 41, second connecting ring; 42, rotating ring; 43, electric telescopic rod; 44, arc-shaped grinding sheet; 45, third driving motor; 46, gear; 47, outer gear ring; 48, fixed ring; 49, spray head; 410, water supply pump; 411, telescopic Hose; 412, annular exhauster; 413, telescopic discharge pipe; 414, collecting ring; 5, moving mechanism; 51, first drive motor; 52, second drive motor; 53, first threaded rod; 54, second threaded rod; 55, first fixed frame; 56, second fixed frame; 57, first support block; 58, second support block; 59, limit rod; 6, circular groove; 7, sliding groove; 8, connecting spring; 9, sliding block; 10, mounting frame; 11, micro motor; 12, extrusion wheel; 13, mounting ring; 14, cleaning brush. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Example: Refer to Figures 1 to 6 , a steel rust removal device for construction engineering, comprising: A processing table 1, the top of which is fixedly connected to two symmetrical support plates 2, one of which is at the feeding position and the other at the discharging position; The detection mechanism 3 includes a first connecting ring 31 that moves back and forth. The inner wall of the first connecting ring 31 is symmetrically provided with a detection frame 32. An electromagnetic plate 33 is provided in the detection frame 32. The other end of the electromagnetic plate 33 is fixedly connected to a plastic spring 34. The other end of the plastic spring 34 is fixedly connected to a permanent magnet block 35. The other end of the permanent magnet block 35 is fixedly connected to an arc-shaped magnetic block 36. The electromagnetic plate 33 and the permanent magnet block 35 are magnetically attracted to each other. The two symmetrically staggered arc-shaped magnetic blocks 36 can alternately detect the upper and lower sides of the round steel. The detection mechanism 3 also includes a resistor plate 37 embedded in the inner wall of the detection frame 32. An L-shaped conductive sheet 38 is fixedly connected to the outer wall on the opposite side of the permanent magnet block 35 and the electromagnetic plate 33. The L-shaped conductive sheet 38 is in sliding contact with the resistor plate 37. The L-shaped conductive sheet 38 and the resistor plate 37 are electrically connected to a current detector. The electrical signal of the current detector is connected to a PLC controller (programmable logic controller, used to receive detection signals and control the operation of various mechanisms) to form a detection circuit. The PLC controller is electrically connected to the electromagnetic plate 33 to form a control circuit. The PLC controller is electrically connected to the micro motor 11 to form a processing circuit. The PLC controller is electrically connected to the first drive motor 51 and the second drive motor 52 to form a start-stop circuit.

[0023] The grinding and rust removal mechanism 4 includes a second connecting ring 41 that moves back and forth. The inner circumferential wall of the second connecting ring 41 is rotatably connected to a swivel 42. A plurality of electric telescopic rods 43 are arranged in a circular array on the inner circumferential wall of the swivel 42. The telescopic end of the electric telescopic rod 43 is fixedly connected to a pressure sensor, and the other end of the pressure sensor is fixedly connected to an arc-shaped grinding sheet 44; The grinding and rust removal mechanism 4 also includes a third drive motor 45 fixedly connected to the outer wall of the first fixed frame 55. The output end of the third drive motor 45 is fixedly connected to a gear 46. The side of the rotating ring 42 close to the gear 46 is fixedly connected to an outer gear ring 47. The outer gear ring 47 is engaged with the gear 46. The PLC controller is electrically connected to the third drive motor 45, the electric telescopic rod 43, and the pressure sensor to form a regulation loop.

[0024] A fixing ring 48 is fixedly connected to the outer wall of the first connecting ring 31 on the side away from the gear 46. A water storage chamber is opened inside the fixing ring 48, and clean water is stored in the water storage chamber. A plurality of spray heads 49 are fixedly connected to the inner peripheral wall of the first connecting ring 31, and the spray heads 49 are inclined toward the direction of the arc-shaped grinding sheet 44. A water supply pump 410 is fixedly connected to the top of the support plate 2 near the discharge end, and a telescopic hose 411 is fixedly connected to the output end of the water supply pump 410. The other end of the telescopic hose 411 is connected to the inside of the water storage chamber.

[0025] The inner wall of the outer gear ring 47 is fixedly connected to an annular exhauster 412, and the discharge end of the annular exhauster 412 is rotatably fixedly connected to a receiving ring 414. The interior of the receiving ring 414 is fixedly connected to a telescopic discharge pipe 413, and the other end of the telescopic discharge pipe 413 slides through the outer wall of the support plate 2.

[0026] The mobile mechanism 5 includes two symmetrical first drive motors 51 and second drive motors 52 fixedly connected to the outer wall of the support plate 2 near the discharge end, and the first drive motor 51 and the second drive motor 52 are respectively fixedly connected at both ends of the first drive motor 51 and the second drive motor 52. The outer walls of the first threaded rod 53 and the second threaded rod 54 are respectively threadedly sleeved with a first fixing bracket 55 and a second fixing bracket 56. The first fixing bracket 55 is fixedly connected to the outer wall of the first connecting ring 31, and the second fixing bracket 56 is fixedly connected to the outer wall of the second connecting ring 41. A first support block 57 is fixedly connected to the outer wall of the first connecting ring 31 on the side away from the first fixing frame 55, and a second support block 58 is fixedly connected to the outer wall of the second connecting ring 41 on the side away from the second fixing frame 56. Two symmetrical limiting rods 59 are fixedly connected between the two support plates 2, one of the limiting rods 59 slides through the first fixing frame 55 and the second support block 58, and the other limiting rod 59 slides through the second fixing frame 56 and the first support block 57.

[0027] The outer walls of the two support plates 2 are each provided with a circular groove 6, and the inner walls of the two circular grooves 6 are each provided with a sliding groove 7 in a circumferential array. The inner wall of the sliding groove 7 is fixedly connected to a connecting spring 8, and the other end of the connecting spring 8 is fixedly connected to a sliding block 9, and the other end of the sliding block 9 is fixedly connected to a mounting bracket 10. The outer wall of the mounting bracket 10 is fixedly connected to a micro motor 11, and the output end of the micro motor 11 is fixedly connected to a rotating rod, and the outer wall of the rotating rod is fixedly connected to an extrusion wheel 12.

[0028] A mounting ring 13 is fixedly connected to the outer wall of the support plate 2 at the feed position, and the mounting ring 13 faces the other mounting plate. A plurality of cleaning brushes 14 are fixedly connected to the inner peripheral wall of the mounting ring 13 .

[0029] The working principle of the present invention is as follows: This steel rust removal device for construction projects is designed specifically for rust removal of round steel used in construction projects. Its operating principle revolves around the processes of segmented conveying, inspection, grinding and rust removal of round steel. The various mechanisms work together to achieve automated operations, as follows: The round steel is processed in a segmented conveying mode (because some round steels are long, it is inconvenient to process the entire section). First, it passes through the circular groove 6 of the feed end support plate 2, the mounting ring 13, the first connecting ring 31, and the second connecting ring 41 in sequence from the feed point, and finally passes through the circular groove 6 of the discharge end support plate 2. When the round steel enters the device, the sliding block 9 in the circular groove 6 at the feed end, under the action of the connecting spring 8, drives the extrusion wheel 12 on the mounting frame 10 to closely contact the surface of the round steel. At the same time, the micro motor 11 starts and drives the rotating rod to rotate, causing the extrusion wheel 12 to rotate synchronously. This not only helps to stabilize the conveying of the round steel, but also crushes the loose rust layer through squeezing, preparing for subsequent rust removal. As the round steel passes through the mounting ring 13, the cleaning brush 14 on its inner wall will perform a preliminary cleaning of the round steel surface, removing dust, impurities, and crushed loose rust. When a section of round steel is delivered to its proper location, the operator activates the first drive motor 51 via the PLC controller, which drives the first threaded rod 53 to rotate. Because the first fixing bracket 55 is threadedly connected to the first threaded rod 53 and the limiting action of the limiting rod 59, the first fixing bracket 55 drives the first connecting ring 31 forward. (The operating time of the first drive motor 51 is preset to ensure that it can cover the entire section of round steel. After a period of operation, it automatically shuts down, stopping the first connecting ring 31 for testing. The stopping time is adjusted based on the actual testing duration.) After the first connecting ring 31 stops moving, the electromagnetic plate 33 in the detection frame 32 is powered off. Due to the magnetic attraction between the electromagnetic plate 33 and the permanent magnet 35, after the power is turned off, the elastic force of the plastic spring 34 and the attraction between the arc-shaped magnet 36 and the round steel cause the permanent magnet 35 to drive the arc-shaped magnet 36 to adhere to the surface of the round steel. Since there is a rust layer between the arc-shaped magnetic block 36 and the round steel, the rust layer (mainly composed of non-magnetic substances such as iron oxide) will block the magnetic field of the arc-shaped magnetic block 36, causing the adsorption force between the two to vary with the thickness of the rust layer: the thicker the rust layer, the more obvious the magnetic field attenuation and the smaller the adsorption force; the thinner the rust layer, the weaker the magnetic field barrier and the greater the adsorption force. Based on this characteristic, the PLC controller slowly energizes electromagnetic plate 33, causing the magnetism it generates to gradually attract permanent magnet 35 and curved magnet 36. When the attraction of electromagnetic plate 33 is sufficient to overcome the attraction between curved magnet 36 and the round steel bar, permanent magnet 35 and curved magnet 36 detach from the round steel bar. Simultaneously, permanent magnet 35 drives L-shaped conductive sheet 38 to slide across resistor plate 37, changing the resistance of the detection circuit. The current detector transmits an electrical signal corresponding to this resistance change to the PLC controller, which then records the current flowing into electromagnetic plate 33. The thicker the rust layer, the smaller the adsorption force between the arc-shaped magnetic block 36 and the round steel, and the electromagnetic plate 33 only needs a smaller current to separate it; the thinner the rust layer, the greater the current required. The thickness of the rust layer on the surface of the round steel can be indirectly judged by the difference in current values, and then the detection mechanism 3 is moved forward through the moving mechanism, and then the detection is continued as described above.

[0030] After the inspection is completed, the PLC controller starts the second drive motor 52 according to the rust layer thickness information, drives the second threaded rod 54 to rotate, and under the limit of the limit rod 59, the second fixed frame 56 drives the second connecting ring 41 to move forward. After moving to the first inspection position, the second drive motor 52 is turned off (the running time of the second drive motor 52 is pre-set to be consistent with the length of the first drive motor 51 to ensure that it can cover the rust removal of the entire section of the round steel. It will automatically turn off after running for a period of time, so that the second connecting ring 41 stops moving for rust removal. The stop time is adjusted according to the actual rust removal time requirements), and then starts the third drive motor 45 to drive the rotating ring 42 to rotate through the engagement of the gear 46 and the outer gear ring 47. During this process, there is a clear correlation between the rust layer thickness and the grinding pressure and speed, and adaptive adjustment is achieved through the PLC controller: Grinding pressure adjustment: When the detection structure shows that the rust layer is thicker, the PLC controller will control the electric telescopic rod 43 to extend to a longer length, so that the arc-shaped grinding disc 44 applies greater pressure on the surface of the round steel. The pressure sensor monitors the grinding pressure in real time and feeds back the signal to the PLC controller. The controller continuously fine-tunes the extension and contraction of the electric telescopic rod 43 based on the feedback to ensure that the pressure is within a reasonable range to adapt to the thick rust layer and ensure the grinding effect; if the rust layer is thin, the PLC controller controls the electric telescopic rod 43 to extend to a shorter length, reducing the pressure of the arc-shaped grinding disc 44 on the round steel to avoid damage to the round steel body due to excessive pressure. The pressure sensor also provides real-time feedback to ensure that the pressure is adapted to the thin rust layer. Grinding speed adjustment: For areas with thicker rust layers, the PLC controller will increase the speed of the third drive motor 45, and through the transmission of the gear 46 and the outer gear ring 47, the rotating ring 42 drives the arc-shaped grinding disc 44 to rotate at a faster speed; when the rust layer is thinner, the PLC controller will reduce the speed of the third drive motor 45 and reduce the rotation speed of the arc-shaped grinding disc 44 to ensure the rust removal effect. During the grinding process, the water supply pump 410 supplies water to the water storage chamber of the fixed ring 48 through the telescopic hose 411, and then the water is sprayed obliquely toward the grinding area through the spray head 49 to reduce dust and cool the area. The annular exhauster 412 on the inner wall of the outer gear ring 47 extracts the rust dust generated by grinding through the telescopic discharge pipe 413 to keep the working environment clean. After a section of round steel is processed, the device repeats the above process to transport, inspect and polish and remove rust on the next section of round steel until the entire round steel is processed.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A steel rust removal device for construction engineering, characterized in that: include: A processing table (1), wherein the top of the processing table (1) is fixedly connected to two symmetrical support plates (2), one of the two support plates (2) is located at the feed position and the other is located at the discharge position; A detection mechanism (3), the detection mechanism (3) comprising a first connecting ring (31) that moves forward and backward, a detection frame (32) being staggered and symmetrically arranged on the inner wall of the first connecting ring (31), an electromagnetic plate (33) being arranged in the detection frame (32), the other end of the electromagnetic plate (33) being fixedly connected to a plastic spring (34), the other end of the plastic spring (34) being fixedly connected to a permanent magnet (35), the other end of the permanent magnet (35) being fixedly connected to an arc-shaped magnet (36), the electromagnetic plate (33) and the permanent magnet (35) being magnetically attracted to each other; A grinding and rust removal mechanism (4), the grinding and rust removal mechanism (4) comprising a second connecting ring (41) that moves forward and backward, the inner peripheral wall of the second connecting ring (41) being rotatably connected to a rotating ring (42), a plurality of electric telescopic rods (43) being arranged in a circumferential array on the inner peripheral wall of the rotating ring (42), the telescopic ends of the electric telescopic rods (43) being fixedly connected to a pressure sensor, and the other end of the pressure sensor being fixedly connected to an arc-shaped grinding sheet (44).

2. The steel rust removal device for construction engineering according to claim 1, characterized in that: The movable mechanism (5) further comprises a first drive motor (51) and a second drive motor (52) fixedly connected to the outer wall of the support plate (2) near the discharge end. The first drive motor (51) and the second drive motor (52) are respectively fixedly connected at both ends with a first threaded rod (53) and a second threaded rod (54). The outer walls of the first threaded rod (53) and the second threaded rod (54) are respectively threadedly sleeved with a first fixing frame (55) and a second fixing frame (56). The first fixing frame (55) is fixedly connected to the outer wall of the first connecting ring (31), and the second fixing frame (56) is fixedly connected to the outer wall of the second connecting ring (41). The outer wall of the first connecting ring (31) on one side away from the first fixing frame (55) is fixedly connected to a first support block (57), and the outer wall of the second connecting ring (41) on one side away from the second fixing frame (56) is fixedly connected to a second support block (58). Two symmetrical limiting rods (59) are fixedly connected between the two support plates (2), one of the limiting rods (59) slides through the first fixing frame (55) and the second support block (58), and the other limiting rod (59) slides through the second fixing frame (56) and the first support block (57).

3. The steel rust removal device for construction engineering according to claim 2, characterized in that: The outer walls of the two support plates (2) are each provided with a circular groove (6), the inner circumferential walls of the two circular grooves (6) are each provided with a sliding groove (7) in a circumferential array, the inner wall of the sliding groove (7) is fixedly connected to a connecting spring (8), the other end of the connecting spring (8) is fixedly connected to a sliding block (9), the other end of the sliding block (9) is fixedly connected to a mounting frame (10), the outer wall of the mounting frame (10) is fixedly connected to a micro motor (11), the output end of the micro motor (11) is fixedly connected to a rotating rod, and the outer wall of the rotating rod is fixedly connected to an extrusion wheel (12).

4. The steel rust removal device for construction engineering according to claim 3, characterized in that: A mounting ring (13) is fixedly connected to the outer wall of the support plate (2) at the feed position, and the mounting ring (13) faces the other mounting plate. A plurality of cleaning brushes (14) are fixedly connected to the inner peripheral wall of the mounting ring (13).

5. The steel rust removal device for construction engineering according to claim 2, characterized in that: The detection mechanism (3) further includes a resistor plate (37) embedded in the inner peripheral wall of the detection frame (32); an L-shaped conductive sheet (38) is fixedly connected to the outer wall of the permanent magnet block (35) on the side opposite to the electromagnetic plate (33); the L-shaped conductive sheet (38) is in sliding contact with the resistor plate (37); the L-shaped conductive sheet (38) and the resistor plate (37) are electrically connected to a current detector; the current detector electrical signal is connected to a PLC controller to form a detection circuit; the PLC controller is electrically connected to the electromagnetic plate (33) to form a control circuit; the PLC controller is electrically connected to the micro motor (11) to form a processing circuit; the PLC controller is electrically connected to the first drive motor (51) and the second drive motor (52) to form a start-stop circuit.

6. The steel rust removal device for construction engineering according to claim 5, characterized in that: The grinding and rust removal mechanism (4) further comprises a third drive motor (45) fixedly connected to the outer wall of the first fixed frame (55); an output end of the third drive motor (45) is fixedly connected to a gear (46); a side of the rotating ring (42) close to the gear (46) is fixedly connected to an outer gear ring (47); the outer gear ring (47) is meshed with the gear (46); and the PLC controller is electrically connected to the third drive motor (45), the electric telescopic rod (43), and the pressure sensor to form a regulation loop.

7. The steel rust removal device for construction engineering according to claim 2, characterized in that: A fixing ring (48) is fixedly connected to the outer wall of the first connecting ring (31) on the side away from the gear (46), and a water storage chamber is provided inside the fixing ring (48), and clean water is stored in the water storage chamber. A plurality of spray heads (49) are fixedly connected to the inner peripheral wall of the first connecting ring (31), and the spray heads (49) are inclined toward the direction of the arc-shaped grinding sheet (44). A water supply pump (410) is fixedly connected to the top of the support plate (2) near the discharge end, and a telescopic hose (411) is fixedly connected to the output end of the water supply pump (410), and the other end of the telescopic hose (411) is connected to the inside of the water storage chamber.

8. The steel rust removal device for construction engineering according to claim 6, characterized in that: The inner wall of the outer gear ring (47) is fixedly connected to an annular exhauster (412), the discharge end of the annular exhauster (412) is rotatably fixedly connected to a receiving ring (414), the interior of the receiving ring (414) is fixedly connected to a telescopic discharge pipe (413), and the other end of the telescopic discharge pipe (413) slides through the outer wall of the support plate (2).

Images