A reinforcing bar straightening machine feed guide assembly

Abstract

The utility model relates to reinforcing bar processing technical field, specifically is a reinforcing bar straightening machine feeding guide subassembly, including straightening subassembly, the feeding end of straightening subassembly is provided with guide subassembly, the guide subassembly includes base and lifting piece, the base is fixedly installed through bolt in the feeding end bottom of straightening subassembly, the lifting piece sets up in the base top, the base top and the lifting piece bottom all are fixed with mounting plate through bolt, the fixedly connected with polishing stone on the mounting plate, the center of polishing stone is provided with the guide hole for the reinforcing bar guide. The whole guide subassembly passes through bolt installation, and the dismounting and maintenance are convenient. The roller spacing adjusting mechanism of straightening subassembly itself is simple to operate, can quickly adapt to the reinforcing bar processing demand of different specifications, and the straightening roller adopts gear meshing transmission, guarantees the synchronism and stability of power transmission, makes the reinforcing bar feeding process more stable.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, specifically to a feeding guide assembly for a steel bar straightening machine. Background Technology

[0002] Rebar straightening machines are commonly used in the construction industry to straighten bent coiled or threaded steel bars. During the straightening process, the steel bars need to be accurately fed between the straightening rollers; Existing rebar straightening machines typically use a simple flared inlet or a fixed guide sleeve for the feed inlet, which has the following drawbacks: it cannot adapt to rebars of different diameters, has poor versatility, and the surface of the rebars often carries oxide scale, rust, or dirt during rolling or transportation. If these impurities are carried into the straightening rollers, they will accelerate the wear of the straightening rollers, affecting the straightening accuracy and equipment lifespan. If the rebars deviate during feeding, they are prone to jamming or failing to accurately enter the straightening area, affecting processing efficiency and even requiring machine shutdown for adjustment, which is time-consuming and labor-intensive. Therefore, a rebar straightening machine feed guide component is proposed. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a feeding guide assembly for a rebar straightening machine.

[0004] The technical solution adopted by this utility model to solve its technical problem is a feeding guide component for a steel bar straightening machine, including a straightening component, wherein the feeding end of the straightening component is provided with a guide component; The guiding component includes a base and a lifting block. The base is fixedly installed at the bottom of the feed end of the straightening component by bolts. The lifting block is located on the top of the base. Mounting plates are installed on the top of the base and the bottom of the lifting block by bolts. A grinding stone is fixedly connected to the mounting plate. A guide hole for guiding the reinforcing bar is opened in the center of the grinding stone.

[0005] By adopting the above technical solution, steel bars of different diameters can be effectively guided to enter the straightening machine accurately, and the surface of the steel bars can be preliminarily ground and cleaned during the feeding process.

[0006] Specifically, guide rods are fixedly connected to the top of both ends of the base, and the lifting blocks are sleeved on the guide rods at both ends, with the guide rods passing through the lifting blocks.

[0007] Specifically, a tension spring is sleeved on the guide rod, the tension spring is located between the base and the lifting block, and the two ends of the tension spring are welded to the base and the lifting block respectively.

[0008] The tension spring provides downward pressure to the lifting block, allowing the upper and lower grinding stones to adaptively clamp steel bars of different diameters and maintain contact pressure even when the steel bar surface is uneven, thus ensuring the grinding effect.

[0009] Specifically, the straightening assembly includes a frame, and a lower straightening roller and an upper straightening roller are equally spaced at the top and bottom of the frame. The two ends of the lower straightening roller are rotatably connected to the frame via bearings. The top of both sides of the frame is provided with sliding grooves, and a slider is slidably connected in the sliding groove. The top of the slider is connected to a threaded rod, and the top of the threaded rod extends through to the top of the frame and is threadedly connected to an internal threaded knob.

[0010] By rotating the internal thread knob, the slider can be driven to move up and down, thereby adjusting the distance between the upper and lower straightening rollers to meet the straightening needs of steel bars of different diameters.

[0011] Specifically, the two ends of the upper straightening roller are rotatably connected to the corresponding sliders via bearings, and the rotating ends of the lower and upper straightening rollers pass through the frame and are fixedly connected with gears, with the gears of the lower and upper straightening rollers meshing with each other.

[0012] By adopting the above technical solution, the gear transmission structure ensures that the upper and lower straightening rollers rotate synchronously in opposite directions, thereby effectively clamping and pulling the steel bars forward.

[0013] The beneficial effects of this invention are as follows: Through the spring-driven lifting block structure, the upper and lower grinding stones can adaptively clamp steel bars of different diameters, ensuring the steel bars are always centered and accurately enter the straightening rollers. This effectively prevents feeding deviation and jamming. During the guiding process, the steel bars pass through the guide holes of the grinding stones, where oxide scale, rust, and dirt on their surface are scraped and polished, preventing impurities from entering the straightening rollers, protecting the rollers, extending the equipment's service life, and improving the surface quality of the straightened steel bars. The entire guiding assembly is bolted on, making disassembly and maintenance convenient. The roller spacing adjustment mechanism of the straightening assembly itself is simple to operate and can quickly adapt to the processing needs of steel bars of different specifications. The straightening rollers use gear meshing transmission, ensuring the synchronization and stability of power transmission, making the steel bar feeding process smoother. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the straightening component of this utility model; Figure 3 This is a schematic diagram of the guide component of this utility model; In the diagram: 1. Straightening assembly; 11. Frame; 12. Lower straightening roller; 13. Upper straightening roller; 14. Slide groove; 15. Slider; 151. Threaded rod; 16. Internal threaded knob; 17. Gear; 2. Guide assembly; 21. Base; 22. Lifting block; 23. Mounting plate; 24. Polishing stone; 241. Guide hole; 25. Guide rod; 26. Tension spring. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figure 1-3 As shown, the present invention provides a feed guide assembly for a rebar straightening machine, comprising a straightening assembly 1 and a guide assembly 2.

[0018] The guide assembly 2 is bolted to the feed end of the straightening assembly 1 via its base 21. The core of the guide assembly 2 includes a fixed base 21 and a lifting block 22 that can move up and down along the guide rod 25. A mounting plate 23 is bolted to the top of the base 21 and the bottom of the lifting block 22. Each mounting plate 23 is fixed with a grinding stone 24 made of wear-resistant material (such as high carbon steel or alloy steel). The grinding stone 24 has a guide hole 241 in the center. The guide rod 25 is vertically fixed to both ends of the base 21. The lifting block 22 is fitted onto the guide rod 25. A tension spring 26 is fitted onto the guide rod 25. The two ends of the spring are welded to the base 21 and the lifting block 22, respectively, to provide a constant downward pressure to the lifting block 22.

[0019] The straightening assembly 1 includes a frame 11, within which multiple sets of lower straightening rollers 12 and upper straightening rollers 13 are arranged alternately. The lower straightening rollers 12 are fixedly mounted on the frame 11 by bearings. The two ends of the upper straightening rollers 13 are mounted on sliders 15 by bearings. The sliders 15 are embedded in the grooves 14 on both sides of the frame 11 and can slide up and down. A threaded rod 151 is connected to the top of the slider 15. The threaded rod 151 extends upward through the frame 11 and is locked by an internal threaded knob 16. Rotating the internal threaded knob 16 can precisely adjust the height of the upper straightening rollers 13, thereby changing the straightening roller gap. All the shaft ends of the lower straightening rollers 12 and the upper straightening rollers 13 are equipped with gears 17, and the upper and lower gears mesh with each other to ensure that all rollers rotate synchronously in opposite directions.

[0020] In use, the coiled steel bar end is fed into the guide assembly 2. The steel bar first passes through the guide hole 241 of the upper and lower grinding stones 24. The pressure of the tension spring 26 makes the upper and lower grinding stones 24 adhere tightly to the surface of the steel bar, straightening the feeding direction on the one hand, and scraping and grinding away the rust and oxide scale on the surface of the steel bar on the other hand. The cleaned steel bar is accurately guided between the upper and lower straightening rollers 12 and 13 of the straightening assembly 1. Under the squeezing and traction of the rollers, it is straightened and conveyed forward. The straightening pressure can be adjusted by rotating the internal thread knob 16 to accommodate steel bars of different diameters.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding guide assembly for a rebar straightening machine, characterized in that, It includes a straightening component (1), and the feed end of the straightening component (1) is provided with a guide component (2); The guide assembly (2) includes a base (21) and a lifting block (22). The base (21) is fixedly installed at the bottom of the feed end of the straightening assembly (1) by bolts. The lifting block (22) is located on the top of the base (21). The top of the base (21) and the bottom of the lifting block (22) are both fitted with mounting plates (23) by bolts. A polishing stone (24) is fixedly connected to the mounting plate (23). A guide hole (241) for guiding the steel bar is opened at the center of the polishing stone (24).

2. The feed guide assembly for a rebar straightening machine according to claim 1, characterized in that, The base (21) has guide rods (25) fixedly connected to the top of both ends. The lifting block (22) is sleeved on the guide rods (25) at both ends, and the guide rods (25) pass through the lifting block (22).

3. The feed guide assembly for a rebar straightening machine according to claim 2, characterized in that, A tension spring (26) is fitted on the guide rod (25). The tension spring (26) is located between the base (21) and the lifting block (22), and the two ends of the tension spring (26) are welded to the base (21) and the lifting block (22) respectively.

4. The feed guide assembly for a rebar straightening machine according to claim 3, characterized in that, The straightening assembly (1) includes a frame (11), and a lower straightening roller (12) and an upper straightening roller (13) are equally spaced at the top and bottom of the frame (11). The two ends of the lower straightening roller (12) are rotatably connected to the frame (11) through bearings. The top of both sides of the frame (11) is provided with a sliding groove (14), a slider (15) is slidably connected in the sliding groove (14), and a threaded rod (151) is connected to the top of the sliding groove (14). The top of the threaded rod (151) extends through to the top of the frame (11) and is threadedly connected to an internal threaded knob (16).

5. The feed guide assembly for a rebar straightening machine according to claim 4, characterized in that, The two ends of the upper straightening roller (13) are rotatably connected to the corresponding slider (15) through bearings, and the rotating ends of the lower straightening roller (12) and the upper straightening roller (13) pass through the frame (11) and are fixedly connected with gears (17). The gears (17) of the lower straightening roller (12) and the upper straightening roller (13) are meshed together.

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