Preprocessing device for straightening disc-type reinforcing steel bars
By combining a sandblasting separator and a filtration mechanism, the problem of incomplete rust removal from coiled steel bars before straightening is solved, achieving complete removal of rust from the steel bar surface and improving the service life and processing efficiency of the equipment.
Patent Information
- Application Number
- CN202511606369.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-02-13
AI Technical Summary
In existing technologies, rust and slag are not completely removed from coiled steel bars before straightening, leading to wear and tear on the steel bars and subsequent processing equipment.
The device, which combines a sandblasting separator and a filtration mechanism, washes the surface of the reinforcing steel with an abrasive stream, uses a rotating airflow to fully collide with the surface of the reinforcing steel to remove rust, and then separates the rust from the abrasive through the filtration mechanism.
It achieves complete removal of rust and slag from the surface of steel bars, avoids subsequent equipment wear, and improves the service life and efficiency of processing equipment.
Smart Images
Figure CN121515069A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure belongs to the technical field of steel bar pretreatment, and particularly relates to a disc type steel bar straightening pre-treatment device. BACKGROUND
[0002] In the steel bar processing process, pre-treatment is required before the disc type steel bar is straightened, which usually includes steel bar unfolding and rust removal. In the production of cross-sea bridge prefabricated components, if the disc type steel bar is slightly rusted due to a humid storage environment, rust residues will be generated at the rusted part when the stacked steel bar is unwound and unreeled, which will pollute the processing environment and also cause the rust residues to enter the subsequent straightening equipment, thereby intensifying the wear of the components and shortening the service life of the equipment.
[0003] The existing device uses a power system to drive a disc wire brush to rotate at a high speed. When the steel bar passes through the disc wire brush, the wire brush is in close contact with the surface of the steel bar. The friction generated by the high-speed rotation of the wire brush can remove the rust on the surface of the steel bar. However, the disc type steel bar is in a curved state for a long time. Therefore, when the steel bar is unfolded, the steel bar also has multiple curved sections and many corners. When the wire brush contacts the steel bar, the wire brush is blocked at the corners and is not easy to move and is stuck. Alternatively, under the action of tension, the wire brush appears a "jumping" phenomenon, so that there is a gap between the wire brush and the steel bar. The gap between the steel bars is not rubbed, so that the rust residues are still attached to the surface of the steel bar. The surface of the steel bar is not completely cleaned, and the steel bar with rust residues enters the subsequent straightening equipment, which causes the subsequent equipment and the steel bar to be worn to different degrees. SUMMARY
[0004] In view of the deficiencies of the prior art, the purpose of the present disclosure is to provide a disc type steel bar straightening pre-treatment device, which solves the problem of incomplete rust residue cleaning of the steel bar in the prior art, which causes the steel bar and the subsequent processing equipment to be worn by rust residues.
[0005] The purpose of the present disclosure can be achieved by the following technical solutions. The disc type steel bar straightening pre-treatment device comprises: a frame mechanism, the frame mechanism comprising a vertical plate and a fixed plate, a connecting assembly being arranged between the vertical plate and the fixed plate, a circular port one being formed in the vertical plate, a circular port two being formed in the fixed plate, the diameter of the circular port one being greater than the diameter of the circular port two, and the height of the center of the circular port one being lower than the height of the center of the circular port two; a sand blasting separation cylinder, both ends of the sand blasting separation cylinder being fixed to the inner walls of the circular port one and the circular port two, respectively; a sand blasting mechanism, the sand blasting mechanism being installed on the surface of the sand blasting separation cylinder in a tangential direction and close to one end of the vertical plate; and a filtering mechanism, the filtering mechanism being installed at a position close to the vertical plate of the connecting assembly.
[0006] The above technical solution has the following principles and effects: The disc type steel bar is placed on one side of the vertical plate, then the straightening traction machine is placed on one side of the fixed plate, the clamping arm of the straightening traction machine penetrates through the sand blasting separation cylinder, and the end of the disc type steel bar is clamped and fixed, after the straightening traction machine exerts force, the steel bar is unfolded and slowly pulled into the sand blasting separation cylinder, the sand blasting mechanism is started, and the abrasive (magnetic steel shot) is sprayed into the sand blasting separation cylinder along the tangent, the abrasive flow flushes the surface of the steel bar, removes rust residues, and the abrasive flow forms a rotating airflow in the cylinder, fully collides with the surface of the steel bar (the steel bar in the unfolded state is in a wave state, and is more fitted with the rotating airflow) in the traction process, and rust residues and oxide scales on the surface of the steel bar are stripped, there is no gap during rust removal, rust residues at the corners and curved parts of the steel bar are stripped, so that the surface of the steel bar pulled out from the second circular port is free of rust residues, and subsequent steel bar straightening work is facilitated, and after stripping, the rust residues and worn abrasive particles are thrown to the cylinder wall under the action of the centrifugal force of the rotating airflow, slide down the inclined cylinder wall to the bottom discharge port, and after the discharge port is opened, the rust residues finally fall into the filtering mechanism.
[0007] Preferably, the connecting assembly comprises a base frame, an H-shaped frame and connecting rods, two base frames are installed on the outer wall of the vertical plate near the bottom on both sides, the bottom of the H-shaped frame is installed on the outer wall of the two base frames at both ends, the fixed plate is fixed on the surface of the H-shaped frame, and two connecting rods are installed between the vertical plate and the fixed plate.
[0008] Preferably, the first circular port is the inlet of the disc type steel bar, and the second circular port is the outlet of the disc type steel bar.
[0009] Preferably, the inner wall of the first circular port is provided with a baffle one at the bottom, and the inner wall of the second circular port is provided with a baffle two at the bottom.
[0010] Preferably, the sand blasting mechanism comprises a sand blasting machine and a sand blasting pipe, the sand blasting pipe is installed on the surface of the sand blasting separation cylinder along the tangent direction of the sand blasting separation cylinder, and the sand blasting machine is installed at one end of the sand blasting separation cylinder.
[0011] Preferably, a plurality of steel bars are installed on the inner wall of the sand blasting separation cylinder at equal intervals, and the two ends of the steel bars respectively extend to the first circular port and the second circular port.
[0012] Preferably, an installation opening is formed in the position close to the vertical plate on the outer wall of the bottom of the sand blasting separation cylinder, a discharge door is slidably arranged on the inner wall of the installation opening, and a handle is installed on the outer wall of the discharge door.
[0013] Preferably, the filtering mechanism comprises a material falling box, the material falling box is installed on the base frame, and a filter screen is arranged in the material falling box.
[0014] The nouns, conjunctions or adjective parts involved in the above technical solutions are explained as follows: Fixed connection refers to the connection of parts or components after being fixed without any relative movement; Rotary connection refers to the connection between parts that allows the parts to rotate relative to each other; Threaded connection is a kind of detachable fixed connection, which has the advantages of simple structure, reliable connection and convenient assembly and disassembly, and is widely used in mechanical engineering and connection structure field; Sliding connection refers to the connection between parts that allows the parts to slide relative to each other.
[0015] Advantages of the present disclosure: By setting the sand blasting separation cylinder, the reinforcing steel bar is expanded and slowly pulled into the sand blasting separation cylinder, the sand blasting mechanism is started, the abrasive is sprayed into the sand blasting separation cylinder along the tangent, the abrasive flow washes the surface of the reinforcing steel bar, removes the rust slag, and the abrasive flow forms a rotating airflow in the cylinder, which fully collides with the surface of the reinforcing steel bar during traction, and the rust slag and oxide skin on the surface of the reinforcing steel bar are stripped; By setting the filtering mechanism, the rust slag and the abrasive are separated by the filter screen, so that the abrasive stays on the surface of the filter screen, and the rust slag and the worn abrasive fall into the material falling box. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced as follows. Obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0017] Figure 1 is a schematic view of the overall structure of the embodiment of the present disclosure; Figure 2 is another angle structure schematic view of Figure 1 ; Figure 3 is a structure schematic view of the bottom view of the embodiment of the present disclosure.
[0018] In the figure: 100, frame mechanism; 101, vertical plate; 102, round port one; 103, base frame; 104, H-shaped frame; 105, fixed plate; 106, connecting rod; 107, round port two; 108, baffle one; 109, baffle two; 200, sand blasting mechanism; 201, sand blasting machine; 202, sand blasting pipe; 300, sand blasting separation cylinder; 301, steel bar; 302, slag discharge door; 303, handle; 400, filtering mechanism; 401, material falling box; 402, filter screen. DETAILED DESCRIPTION
[0019] With reference to the drawings of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present disclosure.
[0020] The skilled person will appreciate that expressions relating to orientation are used herein for convenience of description only and do not serve to make absolute directional limitations on the new pin disc friction pair device.
[0021] According to the conception of the present application, an embodiment of a disc reinforcement straightening pre-treatment device for disc reinforcement pre-treatment is described herein. Figures 1 to 3 Specifically, the disc reinforcement straightening pre-treatment device is configured as a combined device of a frame mechanism 100, a sand blasting mechanism 200, a sand blasting separation cylinder 300 and a filtering mechanism 400, which flushes the surface of the reinforcement by the abrasive flow, removes rust and scale, and the abrasive flow forms a rotating air flow in the cylinder, which fully collides with the surface of the reinforcement during traction, and peels off the rust and scale on the surface of the reinforcement.
[0022] Please refer to Figures 1 to 3 , the disc reinforcement straightening pre-treatment device comprises: The frame mechanism 100 comprises a vertical plate 101 and a fixed plate 105, and a connecting assembly is arranged between the vertical plate 101 and the fixed plate 105. A circular port one 102 is formed in the vertical plate 101, and a circular port two 107 is formed in the fixed plate 105. The diameter of the circular port one 102 is larger than that of the circular port two 107, and the height of the center of the circular port one 102 is lower than that of the center of the circular port two 107. The sand blasting separation cylinder 300 is fixed at the inner walls of the circular port one 102 and the circular port two 107 at both ends, respectively. The sand blasting mechanism 200 is installed at one end of the surface of the sand blasting separation cylinder 300 close to the vertical plate 101 along the tangent direction; and The filtering mechanism 400 is installed at the position of the connecting assembly close to the vertical plate 101.
[0023] The disc type steel bar is placed on one side of the vertical plate 101, then a straightening traction machine is placed on one side of the fixed plate 105, the clamping arm of the straightening traction machine penetrates through the sand blasting separation cylinder 300, and the end of the disc type steel bar is clamped and fixed, after the straightening traction machine exerts force, the steel bar is unfolded and slowly pulled into the sand blasting separation cylinder 300, the sand blasting mechanism 200 is started, and the abrasive (magnetic steel shot) is sprayed into the sand blasting separation cylinder 300 along the tangent, the abrasive flow flushes the surface of the steel bar, removes rust, and the abrasive flow forms a rotating airflow in the cylinder, which fully collides with the surface of the steel bar (the steel bar in the unfolded state is in a wave state, which is more fitted to the rotating airflow), so that the rust and oxide scale on the surface of the steel bar are stripped, there is no gap during the rust removal process, the rust on the corners and curved parts of the steel bar is stripped, so that the surface of the steel bar pulled out from the second circular port 107 is free of rust, and the subsequent steel bar straightening work is facilitated, and the rust and the worn abrasive particles are thrown to the cylinder wall under the action of the centrifugal force of the rotating airflow, slide down the inclined cylinder wall to the bottom of the slag discharge port, and after the slag discharge port is opened, the rust and the abrasive are finally separated in the filtering mechanism 400.
[0024] Specifically, the connecting assembly includes a base frame 103, an H-shaped frame 104, and a connecting rod 106, two base frames 103 are installed on the outer wall of the vertical plate 101 near the bottom on both sides, the bottom of the H-shaped frame 104 is installed on the outer wall of the two base frames 103, the fixed plate 105 is fixed on the surface of the H-shaped frame 104, and two connecting rods 106 are installed between the vertical plate 101 and the fixed plate 105.
[0025] The vertical plate 101 and the fixed plate 105 are connected into a whole frame through the base frame 103, the H-shaped frame 104 and the connecting rod 106, so that the device has higher stability.
[0026] The base frame 103 is made of Q235B steel plate and can bear the vertical pressure transmitted by the vertical plate 101 and the lateral impact force of the sand blasting separation cylinder 300.
[0027] The connecting rod 106 serves as an auxiliary support and forms a cross-stressed system with the H-shaped frame 104, so as to further improve the rigidity and anti-deformation capacity of the frame mechanism, and ensure that the sand blasting separation cylinder can stably bear the axial force during steel bar traction and the impact load during sand blasting in the inclined installation state, and meet the working condition requirements of continuous operation of the equipment.
[0028] Further, the first circular port 102 is the inlet of the disc type steel bar, and the second circular port 107 is the outlet of the disc type steel bar.
[0029] The disc type steel bar enters from the large port (the first circular port 102) and exits from the small port (the second circular port 107), which is more suitable for the early unfolding and the later straightening of the disc type steel bar.
[0030] It should be noted that the inner wall of the circular port one 102 is provided with a baffle one 108, and the inner wall of the circular port two 107 is provided with a baffle two 109.
[0031] The circular port one 102 needs to facilitate the entry of the steel bar while avoiding the discharge of rust slag, and the circular port two 107 serves as an exit channel for the steel bar after the completion of sand blasting rust removal and needs to adapt to the pulling direction of the straightening traction machine, while avoiding the rust slag and abrasives from being taken out, so the baffle one 108 is arranged at the circular port one 102, and the baffle two 109 is arranged at the circular port two 107.
[0032] Further, the sand blasting mechanism 200 includes a sand blasting machine 201 and a sand blasting pipe 202, the sand blasting pipe 202 is installed on the surface of the sand blasting separation cylinder 300 along the tangent direction of the sand blasting separation cylinder 300, and the sand blasting machine 201 is installed at one end of the sand blasting separation cylinder 300.
[0033] The sand blasting machine 201 stably delivers a high-speed abrasive flow into the sand blasting separation cylinder 300 to perform rust removal work on the steel bar, and the sand blasting machine 201 includes a sand storage tank, a high-pressure air compressor, a sand blasting gun, a sand discharge valve, a pressure regulating valve and an electric control box. The connection angle between the pipe body and the sand blasting separation cylinder 300 is strictly along the tangent direction of the cylinder wall (the radial angle with the cylinder axis is 90°), so as to ensure that the abrasive forms a vortex rotating along the cylinder wall after entering, covers the full circumference of the steel bar, and the disc-shaped steel bar is in a wave state in the straightening and unfolding process. The steel bar is more fitted with the rotating airflow in the unfolded state, the airflow and the steel bar surface collide fully, the rust slag and oxide skin on the surface of the steel bar are stripped, and there is no gap in the rust removal process. The rust slag at the corners and curved parts of the steel bar is also stripped.
[0034] Specifically, a plurality of steel bars 301 are installed on the inner wall of the sand blasting separation cylinder 300 at equal intervals, and the two ends of the steel bars 301 respectively extend to the circular port one 102 and the circular port two 107.
[0035] The steel bars 301 interfere with the airflow in the sand blasting separation cylinder 300 to form turbulent impact, guide the abrasive to move along the axial direction, avoid local accumulation, optimize the sand blasting rust removal effect, assist the abrasive movement track, and assist the separation of sand slag. When the large rust slag contacts the steel bars 301, the rust slag is directly broken by the steel bars 301.
[0036] Specifically, an installation opening is formed in the position close to the vertical plate 101 on the outer wall of the bottom of the sand blasting separation cylinder 300, a slag discharge door 302 is slidingly arranged on the inner wall of the installation opening, and a handle 303 is arranged on the outer wall of the slag discharge door 302.
[0037] After the rust removal treatment work is completed, the slag discharge door 302 is opened, so that the abrasive and rust slag can be discharged, and the materials fall into the filtering mechanism 400.
[0038] Specifically, the filtering mechanism 400 includes a blanking box 401, which is installed on the chassis 103, and a filter screen 402 arranged inside the blanking box 401.
[0039] The blanking box 401 is a core component for separating slag and primary filtering, and needs to realize the functions of abrasive recovery, rust slag filtering and dust preliminary interception. The filter screen inside the blanking box 401 adopts a double-layer stepped filtering structure plus the setting of a bottom vibrator. The upper layer adopts a high-carbon steel wire woven screen to intercept worn steel shot abrasives, and the lower layer adopts a punched steel plate to intercept steel shot debris, so that the rust slag is crushed and falls into the bottom of the blanking box 401.
[0040] Magnetic steel shots and a magnetic filter screen can also be used, so that the steel shots are more easily intercepted on the surface of the filter screen 402.
[0041] The disc type steel bar pre-treatment device provided by the present application will be further described below in combination with the drawings and embodiments.
[0042] First, the disc type steel bar is placed on one side of the vertical plate 101, and then the straightening traction machine is placed on one side of the fixed plate 105. The clamping arm of the straightening traction machine penetrates through the sand blasting separation cylinder 300 and clamps and fixes the end of the disc type steel bar. After the straightening traction machine is powered, the steel bar is unfolded and slowly pulled into the sand blasting separation cylinder 300. The sand blasting mechanism 200 is started, and the sand blasting machine 201 sprays abrasives (magnetic steel shots) into the inside of the sand blasting separation cylinder 300 along a tangent. The abrasive flow flushes the surface of the steel bar to remove rust slag, and the abrasive flow forms a rotating air flow in the cylinder, which fully collides with the surface of the steel bar (the steel bar in the unfolded state is in a wave state and is more fitted with the rotating air flow) in the traction process. The rust slag and oxide scale on the surface of the steel bar are stripped, and there is no gap in the rust removal process. The rust slag at the corners and curved parts of the steel bar is stripped, so that the surface of the steel bar pulled out from the circular port 107 is free of rust slag, facilitating the subsequent steel bar straightening work. The stripped rust slag and worn abrasive particles are thrown to the cylinder wall under the action of the centrifugal force of the rotating air flow, slide down the inclined cylinder wall to the bottom of the slag discharge port, and then the slag discharge door 302 is opened to discharge the abrasives and rust slag, so that the materials fall into the filtering mechanism 400, the rust slag and abrasives are separated by the filter screen 402, and the rust removal work before the disc type steel bar is straightened is completed.
[0043] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0044] The foregoing generally describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, various changes and improvements can be made to the present disclosure, and all these changes and improvements fall within the scope of the present disclosure.
Claims
1. A pre-treatment device for straightening coiled steel bars, characterized in that, include: A frame mechanism (100) includes a vertical plate (101) and a fixed plate (105). A connecting component is provided between the vertical plate (101) and the fixed plate (105). A circular opening (102) is opened on the vertical plate (101), and a circular opening (107) is opened on the fixed plate (105). The diameter of the circular opening (102) is larger than the diameter of the circular opening (107), and the height of the center of the circular opening (102) is lower than the height of the center of the circular opening (107). A sandblasting separation cylinder (300) has its two ends fixed to the inner walls of the first circular opening (102) and the second circular opening (107), respectively. A sandblasting mechanism (200) is mounted tangentially on one end of the surface of the sandblasting separator (300) near the vertical plate (101); and, A filter mechanism (400) is installed on the connecting assembly near the vertical plate (101).
2. The pre-treatment device for straightening coiled steel bars as described in claim 1, characterized in that: The connecting assembly includes a base frame (103), an H-shaped frame (104), and connecting rods (106). The two base frames (103) are installed on the outer walls of the vertical plate (101) near the bottom on both sides. The bottom ends of the H-shaped frame (104) are installed on the outer walls of the two base frames (103). The fixing plate (105) is fixed to the surface of the H-shaped frame (104). The two connecting rods (106) are installed between the vertical plate (101) and the fixing plate (105).
3. The pre-treatment device for straightening coiled steel bars as described in claim 1, characterized in that: The first circular opening (102) is the inlet of the coiled steel bar, and the second circular opening (107) is the outlet of the coiled steel bar.
4. The pre-treatment device for straightening coiled steel bars as described in claim 3, characterized in that: A baffle plate (108) is installed at the bottom of the inner wall of the first circular opening (102), and a baffle plate (109) is installed at the bottom of the inner wall of the second circular opening (107).
5. The pre-treatment device for straightening coiled steel bars as described in claim 1, characterized in that: The sandblasting mechanism (200) includes a sandblasting machine (201) and a sandblasting pipe (202). The sandblasting pipe (202) is installed on the surface of the sandblasting separation cylinder (300) along the tangential direction of the sandblasting separation cylinder (300). The sandblasting machine (201) is installed at one end of the sandblasting separation cylinder (300).
6. The pre-treatment device for straightening coiled steel bars as described in claim 1, characterized in that: Multiple steel bars (301) are installed at equal intervals on the inner wall of the sandblasting separation cylinder (300), with the two ends of the steel bars (301) extending toward circular opening one (102) and circular opening two (107), respectively.
7. The pre-treatment device for straightening coiled steel bars as described in claim 2, characterized in that: The bottom outer wall of the sandblasting separator (300) has an installation opening near the vertical plate (101). A slag discharge door (302) is slidably provided on the inner wall of the installation opening, and a handle (303) is installed on the outer wall of the slag discharge door (302).
8. The pre-treatment device for straightening coiled steel bars as described in claim 7, characterized in that: The filtration mechanism (400) includes a discharge box (401), which is mounted on a base frame (103), and a filter screen (402) is provided inside the discharge box (401).