Polishing device for PC steel bar production

Abstract

The utility model discloses a polishing device for PC steel bar production, and relates to the technical field of PC steel bar production. The polishing stones and the rubber wheels are symmetrically arranged on the two sides and are matched with the notches in the two sides of the conveying groove for use; the lower end of the spraying plate is fixedly connected with a plurality of sprayers, and the spraying plate is fixedly connected to the middle of the upper end of the inner wall of the protective cover; the cooling liquid box is provided with a liquid adding pipe, and an observation structure is arranged in the cooling liquid box and comprises an observation window and a graduated scale. Cooling liquid is sprayed out through a spraying plate spray head and sprayed to a PC steel bar, a polishing stone and a rubber wheel for cooling, a floating ball in a cooling liquid box can float upwards or descend according to the change of the amount of the cooling liquid in the cooling liquid box, and when a fixing rod ascends and descends, a fixing plate drives a sliding block to move through a connecting rod, so that the cooling liquid is cooled. When the sliding block slides in the sliding rail, the pointer moves up and down on one side of the graduated scale to observe and monitor the residual amount of the cooling liquid.

Description

Technical Field

[0001] This utility model relates to the field of PC steel bar production technology, specifically to a grinding device for PC steel bar production. Background Technology

[0002] PC steel bars are a type of high-strength, low-relaxation prestressed steel primarily used in prestressed concrete structures. Their diameter ranges from 7.1mm to 14mm, encompassing various specifications, and are suitable for bridges, buildings, hydraulic engineering, and other engineering fields. PC steel bars are characterized by strong bond with concrete and material savings, making them a key material for improving structural load-bearing capacity and stability.

[0003] The main purpose of grinding PC steel bars is to remove surface burrs, cracks, and inclusions, thereby improving their appearance quality, functional performance, and service life. These surface defects may be caused by process problems during production (such as inclusions and component segregation), and if left untreated, they will affect the strength, durability, and bond strength with concrete of the steel bars.

[0004] Utility model patent CN219598948U discloses a stainless steel bar grinding device, belonging to the field of steel grinding. It includes a base with a material conveying trough in the top middle section, and a first and second sliding plate on the top of the base. A slow-speed motor is mounted on one side of the upper end of the base, with a rubber wheel connected to the other end. A fast-speed motor is mounted on the other side of the upper end of the base, with a grinding stone connected to the other end. A grinding protective cover is mounted on the outside of the grinding stone. By installing a bidirectional screw at the upper end of the base, the grinding stone and rubber wheel can be adjusted, allowing the device to adapt to various types of stainless steel bars. A rotating handle is installed at one end of the bidirectional screw, allowing for manual and rapid adjustment of the gap between the grinding stone and the rubber wheel, thus improving the efficiency of switching between different types of stainless steel bars.

[0005] The existing technology still has some problems: a lot of heat is generated during the grinding process, and the surface of the steel bar may be burned or deformed due to high temperature. Coolant needs to be dripped during grinding, and there is friction between the grinding stone and the steel bar. Moreover, without the help of coolant, the life of the grinding stone will be reduced. However, after long-term use, dirt or scale may accumulate on the inner wall of the coolant tank, which will adhere to the inside of the observation window, making it difficult to observe and affecting the judgment of the remaining amount for planned replenishment.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a grinding device for PC steel bar production.

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0009] A grinding device for PC steel bar production, comprising:

[0010] Support section;

[0011] The protective cover has openings at the lower front and rear ends that allow PC steel bars to pass through.

[0012] The material conveying trough passes through the openings on the front and rear sides of the protective cover, and there are notches on both sides of the middle part of the material conveying trough;

[0013] Polishing stones and rubber wheels are symmetrically arranged on both sides to be used in conjunction with the notches on both sides of the feed chute;

[0014] A spray plate, with several spray nozzles fixedly connected to its lower end, and the spray plate is fixedly connected to the upper middle part of the inner wall of the protective cover;

[0015] A coolant tank with a filling pipe, wherein the coolant tank is provided with an observation structure, the observation structure including an observation window and a scale.

[0016] As an improvement, the support includes a workbench, with support rods fixedly connected to the four corners of the lower end of the workbench, and the material conveying trough and protective cover fixedly connected to the middle of the upper end of the workbench.

[0017] As an improvement, mounting plates are provided below both the polishing stone and the rubber wheel. A fast motor and a slow motor are fixedly connected to the upper ends of the mounting plates on both sides, respectively. The fast motor and the slow motor drive the polishing stone and the rubber wheel, respectively. The mounting plates on both sides can be adjusted horizontally by a movable structure.

[0018] As an improvement, the moving structure includes a bidirectional lead screw located below the center of the worktable, with opposite threads on both sides of the bidirectional lead screw. Both sides of the bidirectional lead screw are rotatably connected to a fixing block fixedly connected to the worktable, and both sides of the bidirectional lead screw are threadedly connected to a threaded block.

[0019] As an improvement, the worktable has sliding grooves on both sides, and the threaded blocks on both sides are slidably connected in the sliding grooves on both sides. The upper ends of the threaded blocks on both sides pass through the sliding grooves and are fixedly connected to the mounting plates on both sides.

[0020] As an improvement, a drive motor is fixedly connected to the end of the fixed block away from the bidirectional lead screw on one side, and the drive motor drives the bidirectional lead screw to rotate.

[0021] As an improvement, a coolant pump connected to the spray plate is fixedly connected to the upper end of the protective cover, and the coolant tank is fixedly connected to the rear side of the upper end of the workbench. The coolant pump and the coolant tank are connected by a connecting pipe.

[0022] As an improvement, the mounting plate and the portion of the workbench inside the protective cover are provided with several drainage holes, and a water collection basin with an opening at the top is provided under the workbench.

[0023] As an improvement, the observation window is located on one side of the coolant tank, and the observation structure also includes a float ball installed inside the coolant tank. A fixing rod is fixedly connected to the upper end of the float ball, and a vertically extending limiting sleeve is fixedly connected to the middle of the upper end of the coolant tank. The upper end of the fixing rod passes through the limiting sleeve and is fixedly connected to a fixing plate.

[0024] As an improvement, a slide rail is fixedly connected to the upper end of the coolant tank behind the fixed plate. The slide rail has an opening at the front, and a slider is slidably connected inside the slide rail. The slider and the fixed plate are connected by a connecting rod. The scale is fixedly connected to one side of the slide rail, and a pointer is fixedly connected to the side of the slider near the scale.

[0025] The advantages of this invention compared to existing technologies are as follows: the spray nozzle sprays coolant onto the polished part of the PC steel rod, as well as the polishing stone and rubber wheel, to cool and reduce its temperature, thereby improving its service life and finished product quality. The float in the coolant tank can rise or fall according to the change in the amount of coolant inside the tank. When the fixed rod is raised or lowered, the fixed plate drives the slider to move through the connecting rod. When the slider slides in the slide rail, the pointer moves up and down on one side of the scale to observe and monitor the remaining coolant level, so as to add coolant in a timely manner. Attached Figure Description

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0027] Figure 1 A three-dimensional schematic diagram of a grinding device for PC steel bar production provided in this embodiment of the present invention. Figure 1 ;

[0028] Figure 2 A three-dimensional schematic diagram of a grinding device for PC steel bar production provided in this embodiment of the present invention. Figure 2 ;

[0029] Figure 3 A three-dimensional schematic diagram of a grinding device for PC steel bar production provided in this embodiment of the present invention. Figure 3 ;

[0030] Figure 4 A partial schematic diagram of a grinding device for PC steel bar production provided in this embodiment of the present invention;

[0031] Figure 5 A schematic cross-sectional view of a coolant tank in a grinding device for PC steel bar production, provided as an embodiment of this utility model;

[0032] Figure 6 A grinding device for PC steel bar production provided in this embodiment of the present invention Figure 5 Enlarged view of area A in the image;

[0033] As shown in the figure: 1. Protective cover; 2. Feed trough; 3. Polishing stone; 4. Rubber wheel; 5. Spray plate; 6. Coolant tank; 7. Observation window; 8. Scale; 9. Workbench; 10. Support rod; 11. Mounting plate; 12. High-speed motor; 13. Slow-speed motor; 14. Two-way lead screw; 15. Fixing block; 16. Threaded block; 17. Slide groove; 18. Drive motor; 19. Coolant pump; 20. Connecting pipe; 21. Leakage hole; 22. Water basin; 23. Float ball; 24. Fixing rod; 25. Limit sleeve; 26. Slide rail; 27. Slider; 28. Connecting rod; 29. ​​Pointer; 30. Fixing plate. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Combined with appendix Figures 1-6 This utility model discloses a grinding device for PC steel bar production. The grinding device mainly includes: a support part, a protective cover 1, a material conveying trough 2, a grinding stone 3 and a rubber wheel 4, a spray plate 5, and a coolant tank 6 with a liquid filling pipe. The support part includes a workbench 9. The lower front and rear ends of the protective cover 1 have openings that allow PC steel bars to pass through. The material conveying trough 2 passes through the openings on the front and rear sides of the protective cover 1. The material conveying trough 2 has notches on both sides of the middle part. Support rods 10 are fixedly connected to the four corners of the lower end of the workbench 9. The material conveying trough 2 and the protective cover 1 are both fixedly connected to the middle of the upper end of the workbench 9.

[0036] Then, the grinding stone 3 and the rubber wheel 4 are symmetrically arranged on both sides to work with the notches on both sides of the feed chute 2. The grinding stone 3 and the rubber wheel 4 are both equipped with mounting plates 11. The upper ends of the mounting plates 11 on both sides are fixedly connected to a fast motor 12 and a slow motor 13, respectively. The fast motor 12 and the slow motor 13 drive the grinding stone 3 and the rubber wheel 4, respectively. The mounting plates 11 on both sides are adjusted horizontally by a moving structure. The slow motor 13 drives the rubber wheel 4 to rotate. The rubber wheel 4 contacts the outer wall of the PC steel rod, which in turn drives the PC steel rod to rotate slowly, so as to evenly complete the grinding operation on the PC steel rod. At the same time, the fast motor 12 drives the grinding stone 3 to rotate at high speed, which can grind the outer wall of the PC steel rod.

[0037] Specifically, to improve adaptability, the moving structure includes a bidirectional lead screw 14 located below the center of the worktable 9. The two sides of the bidirectional lead screw 14 have opposite threads. Both sides of the bidirectional lead screw 14 are rotatably connected to fixed blocks 15 fixedly connected to the worktable 9. Both sides of the bidirectional lead screw 14 are threadedly connected to threaded blocks 16. Both sides of the worktable 9 have slide grooves 17. The threaded blocks 16 on both sides are slidably connected to the slide grooves 17 on both sides. The upper ends of the threaded blocks 16 on both sides pass through the slide grooves 17 and are fixedly connected to the mounting plates 11 on both sides. The end of one fixed block 15 away from the bidirectional lead screw 14 is fixedly connected to a drive motor 18. The drive motor 18 drives the bidirectional lead screw 14 to rotate. By driving the bidirectional lead screw 14 to rotate, the threaded blocks 16 on both sides, under the guidance of the threaded connection and the slide groove 17, drive the mounting plates 11 on both sides to move towards the same side to adjust the distance between the polishing stone 3 and the rubber wheel 4 to accommodate PC steel rods of different diameters.

[0038] Next, several nozzles are fixedly connected to the lower end of the spray plate 5. The spray plate 5 is fixedly connected to the upper middle part of the inner wall of the protective cover 1. A coolant pump 19 connected to the spray plate 5 is fixedly connected to the upper end of the protective cover 1. The coolant tank 6 is fixedly connected to the rear side of the upper end of the workbench 9. The coolant pump 19 and the coolant tank 6 are connected by a connecting pipe 20. Several drainage holes 21 are opened in the mounting plate 11 and the part of the workbench 9 inside the protective cover 1. A water basin 22 with an opening at the top is set under the workbench 9. The coolant pump 19 draws coolant from the coolant tank 6 through the connecting pipe 20 and then delivers it to the spray plate 5. It is sprayed out by the nozzles and sprayed onto the part of the PC steel rod that is being polished, as well as the polishing stone 3 and rubber wheel 4 that are working, to cool down and improve their service life and finished product quality. It also washes away the debris generated during polishing. The coolant and debris drip into the water basin 22 through the drainage holes 21 to prevent pollution.

[0039] Furthermore, to facilitate observation of the remaining coolant level, an observation structure is provided inside the coolant tank 6. The observation structure includes an observation window 7 and a scale 8. The observation window 7 is located on one side of the coolant tank 6 and can be directly observed. However, if the observation window 7 is covered with dirt from the coolant tank 6, making the observation unclear, the observation structure also includes a float 23 inside the coolant tank 6. A fixing rod 24 is fixedly connected to the upper end of the float 23. A vertically extending limiting sleeve 25 is fixedly connected to the middle of the upper end of the coolant tank 6. The upper end of the fixing rod 24 passes through the limiting sleeve 25 and is fixedly connected to a fixing plate 30. A slide rail 26 is fixedly connected to the upper end of the coolant tank 6 behind the fixing plate 30. The slide rail 26 has an opening at the front, and a slider 27 is slidably connected inside the slide rail 26. The slider 27 and the fixing plate 30 are connected by a connecting rod 28. The scale 8 is fixedly connected to one side of the slide rail 26, and a pointer 29 is fixedly connected to the side of the slider 27 closest to the scale 8.

[0040] Therefore, in specific implementation, the float 23 inside the coolant tank 6 can rise or fall according to the change in the amount of coolant inside the coolant tank 6. The limiting sleeve 25 can ensure the stability of the lifting and lowering of the fixing rod 24 and prevent it from tilting, which would affect the monitoring of the remaining amount. When the fixing rod 24 is raised or lowered, the fixing plate 30 drives the slider 27 to move through the connecting rod 28. When the slider 27 slides in the slide rail 26, the pointer 29 moves up and down on one side of the scale 8 to observe and monitor the remaining amount of coolant. The staff can know the remaining amount of coolant inside the coolant tank 6 according to the position of the pointer 29, and then add the corresponding coolant into the coolant tank 6 through the filling pipe. The float 23, fixing rod 24, fixing plate 30, connecting rod 28, slider 27 and pointer 29 are all made of plastic, which not only has good corrosion resistance, but is also relatively lightweight, making it easy to rise or fall according to the change in the remaining amount of coolant inside the coolant tank 6.

[0041] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer. The specific implementation of this disclosure omits detailed descriptions of known functions and components. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available instruments.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A grinding device for PC steel bar production, characterized in that, include: Support section; The protective cover (1) has openings at the lower front and rear ends that allow PC steel bars to pass through. The material conveying trough (2) passes through the openings on the front and rear sides of the protective cover (1), and there are notches on both sides of the middle part of the material conveying trough (2); The grinding stone (3) and the rubber wheel (4) are symmetrically arranged on both sides and used in conjunction with the notches on both sides of the feed trough (2); Spraying plate (5), with several nozzles fixedly connected to the lower end of the spraying plate (5), and the spraying plate (5) is fixedly connected to the middle of the upper end of the inner wall of the protective cover (1); A coolant tank (6) with a filling pipe is provided inside the coolant tank (6), and the observation structure includes an observation window (7) and a scale (8).

2. The grinding device for PC steel bar production according to claim 1, characterized in that: The support includes a workbench (9), with support rods (10) fixedly connected to the four corners of the lower end of the workbench (9), and the material conveying trough (2) and the protective cover (1) fixedly connected to the middle of the upper end of the workbench (9).

3. The grinding device for PC steel bar production according to claim 1, characterized in that: A mounting plate (11) is provided below both the polishing stone (3) and the rubber wheel (4). A fast motor (12) and a slow motor (13) are fixedly connected to the upper ends of the mounting plates (11) on both sides respectively. The fast motor (12) and the slow motor (13) drive the polishing stone (3) and the rubber wheel (4) respectively. The mounting plates (11) on both sides are horizontally adjusted by a moving structure.

4. The grinding device for PC steel bar production according to claim 3, characterized in that: The moving structure includes a bidirectional lead screw (14) located below the center of the worktable (9). The two sides of the bidirectional lead screw (14) have opposite threads. Both sides of the bidirectional lead screw (14) are rotatably connected to a fixing block (15) fixedly connected to the worktable (9). Both sides of the bidirectional lead screw (14) are threadedly connected to a threaded block (16).

5. The grinding device for PC steel bar production according to claim 4, characterized in that: The workbench (9) has sliding grooves (17) on both sides. The threaded blocks (16) on both sides are slidably connected in the sliding grooves (17) on both sides. The upper ends of the threaded blocks (16) on both sides pass through the sliding grooves (17) and are fixedly connected to the mounting plates (11) on both sides.

6. The grinding device for PC steel bar production according to claim 4, characterized in that: A drive motor (18) is fixedly connected to one end of the fixed block (15) away from the bidirectional lead screw (14), and the drive motor (18) drives the bidirectional lead screw (14) to rotate.

7. The grinding device for PC steel bar production according to claim 2, characterized in that: The upper end of the protective cover (1) is fixedly connected to a coolant pump (19) connected to the spray plate (5), and the coolant tank (6) is fixedly connected to the rear side of the upper end of the workbench (9). The coolant pump (19) and the coolant tank (6) are connected by a connecting pipe (20).

8. The grinding device for PC steel bar production according to claim 3, characterized in that: The mounting plate (11) and the part of the workbench (9) inside the protective cover (1) are both provided with several drainage holes (21), and a water basin (22) with an opening at the top is provided below the workbench (9).

9. The grinding device for PC steel bar production according to claim 1, characterized in that: The observation window (7) is located on one side of the coolant tank (6). The observation structure also includes a float (23) located inside the coolant tank (6). A fixing rod (24) is fixedly connected to the upper end of the float (23). A limiting sleeve (25) that runs vertically through the upper part of the coolant tank (6) is fixedly connected to the middle of the upper part. The upper end of the fixing rod (24) passes through the limiting sleeve (25) and is fixedly connected to a fixing plate (30).

10. The grinding device for PC steel bar production according to claim 9, characterized in that: A slide rail (26) is fixedly connected to the upper end of the coolant tank (6) behind the fixed plate (30). The slide rail (26) has an opening in front. A slider (27) is slidably connected inside the slide rail (26). The slider (27) and the fixed plate (30) are connected by a connecting rod (28). The scale (8) is fixedly connected to one side of the slide rail (26). A pointer (29) is fixedly connected to the side of the slider (27) near the scale (8).

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