A reinforcing steel bar coil pre-straightening device

Abstract

The utility model discloses a kind of reinforcing bar coiled material pre-straightening device, belong to reinforcing bar processing technical field, including base, pre-correction mechanism and moving mechanism, base top front side is fixedly connected with mounting plate by support frame, top rear side is fixedly connected with circular ring, multiple limit rods are fixedly connected between circular ring and mounting plate, mounting plate front side is fixedly connected with mounting cylinder, guiding roller one and guiding roller two are respectively vertically distributed fixedly connected in mounting cylinder inner wall front and back, moving mechanism is installed in base middle part, and moving mechanism includes multiple electric push rods, electric push rod is respectively embedded in base inner wall left and right sides, and output end is respectively rotationally connected with staggered distribution support rod one and support rod two.The utility model realizes reinforcing bar multidirectional straightening by two groups of vertical guide rollers, simple structure, straightening efficiency is high, cross support rod and universal dynamic wheel driven by electric push rod are simultaneously utilized, the problem that device is inconvenient to move is solved, with high flexibility and practicality.

Description

Technical Field

[0001] This utility model relates to a steel bar processing device, and more particularly to a steel bar roll pre-straightening device. Background Technology

[0002] In the field of building construction, steel bars are widely used as an important structural material. To facilitate transportation and storage, steel bars are supplied in the form of coils. However, before subsequent processing and use, coiled steel bars often need to be straightened to meet the construction requirements for the straightness of the steel bars.

[0003] Existing rebar coil straightening devices have certain limitations in design, especially when dealing with the initial bending of the coiled rebar. Some devices use relatively simple straightening structures, which are difficult to effectively cope with the complex three-dimensional bending state of the rebar, resulting in unsatisfactory straightening effect and low straightening efficiency. They cannot meet the increasing demands for processing speed and accuracy in large-scale construction. In addition, these devices are relatively fixed and bulky in structure. Once installed, it is very difficult to move or adjust their position. They require the use of lifting equipment or a lot of manpower for handling, which not only increases construction costs but also prolongs the operation time and reduces the overall flexibility and efficiency of construction.

[0004] Therefore, this utility model proposes a pre-straightening device for steel bar coils to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problems in the existing technology of rebar coil pre-straightening devices, such as the relatively simple straightening structure, which makes it difficult to effectively deal with the complex bending of rebar, resulting in unsatisfactory straightening effect and efficiency, and the inconvenience of moving the device, requiring external equipment or a lot of manpower for handling, this utility model aims to provide a rebar coil pre-straightening device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a pre-straightening device for steel coils, including a base, a support frame, a mounting plate, a ring, a limiting rod, a mounting cylinder, a guide roller one and a guide roller two; as well as a moving mechanism, an electric push rod, a support rod one, a support rod two, a rotating groove and a moving wheel.

[0007] A mounting plate is fixedly connected to the front top of the base via a support frame, and a ring is fixedly connected to the rear top of the base. Multiple limiting rods are fixedly connected between the ring and the mounting plate. These components constitute the basic frame of the rebar roll pre-straightening device and the channel for the rebar introduction pre-correction mechanism.

[0008] An installation cylinder is fixedly connected to the front side of the installation plate. Guide roller 1 and guide roller 2 are vertically distributed and fixedly connected to the inner wall of the installation cylinder. Guide roller 1 and guide roller 2 are the core components of the pre-correction mechanism. Guide roller 1 is used to perform preliminary horizontal straightening of the steel bar, and guide roller 2 is used to perform secondary vertical straightening of the steel bar. Through the synergistic effect of the two sets of guide rollers, multi-angle and continuous pre-correction of the coiled steel bar is achieved.

[0009] Furthermore, a moving mechanism is installed in the middle of the base. The moving mechanism includes multiple electric push rods, which are respectively embedded in the left and right sides of the inner wall of the base. The output ends of the electric push rods are rotatably connected to support rod one and support rod two, which are staggered. The outer wall of support rod two has a rotating groove in the middle for support rod one to rotate. The bottom ends of support rod one and support rod two are fixedly connected to driving wheels. This structure ingeniously converts the linear motion of the electric push rods into the rotation of the support rods, thereby driving the driving wheels to rise and fall, enabling the entire device to leave the ground and move, thus solving the problem of inconvenient movement of the rebar coil pre-straightening device.

[0010] Preferably, the guide roller includes two horizontally distributed rollers, which ensures that the reinforcing bars are first subjected to horizontal compression and correction after entering the installation cylinder, effectively handling the bending of the reinforcing bars in the plane and laying the foundation for subsequent vertical straightening.

[0011] Preferably, the guide roller two includes two vertically distributed rollers, so that after the steel bar is straightened laterally by the guide roller one, it is immediately corrected in the vertical direction, further eliminating the vertical bending and twisting of the steel bar, thereby achieving a more thorough pre-straightening effect and meeting the higher requirements for the straightness of the steel bar.

[0012] Preferably, multiple limiting rods are evenly distributed along the circumference. These limiting rods provide uniform guidance and limiting effect after the reinforcing bar enters from the ring, preventing the reinforcing bar from swinging or getting stuck before entering the pre-correction mechanism, and ensuring that the reinforcing bar can enter the pre-correction area stably and smoothly.

[0013] Preferably, there are multiple support frames, which are evenly distributed on the front side of the top of the base. This multi-point support design enhances the stability and load-bearing capacity of the pre-correction mechanism mounting plate, reduces the vibration and deformation that may occur during the operation of the device, and improves the straightening accuracy and the overall reliability of the device.

[0014] Preferably, the output end of the electric push rod is rotatably connected to support rod one and support rod two via a pin. The pin connection method has good reliability and durability, ensuring that the driving force of the electric push rod can be efficiently and accurately transmitted to the support rod, thus guaranteeing the stability and precision of the lifting action of the moving mechanism.

[0015] Preferably, the inner wall of the mounting cylinder is a smooth cylindrical structure. This smooth inner wall surface design can significantly reduce the frictional resistance when the reinforcing bar passes through the mounting cylinder, prevent damage to the surface of the reinforcing bar, and ensure that the reinforcing bar passes smoothly and unobstructed inside the pre-correction mechanism, thereby improving work efficiency.

[0016] Preferably, the driving wheels are omnidirectional wheels. The design of the omnidirectional wheels gives the device the ability to turn and move freely 360 degrees when it is raised, which allows the operator to easily adjust the position and direction of the device in a confined space, greatly improving the flexibility and ease of use of the device.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of the single structure and incomplete straightening of the existing steel bar pre-correction technology by setting a horizontally distributed guide roller 1 and a vertically distributed guide roller 2 in the installation cylinder for graded straightening. It achieves the effect of multi-directional and high-efficiency pre-correction of steel bar rolls, and has a simple structure and low maintenance cost.

[0018] 2. This utility model solves the problems of inconvenient movement and the need for additional handling tools in existing technology by setting up a combination structure of electric push rod driven cross support rod and moving wheel, thereby achieving the effect of enabling the device to be automatically raised and easily moved, improving site adaptability and ease of operation. Attached Figure Description

[0019] Figure 1 This is a perspective view of a pre-straightening device for steel coils proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the guide roller of the pre-straightening device for steel coils proposed in this utility model; Figure 3 This is a schematic diagram of the moving mechanism of a pre-straightening device for steel coils proposed in this utility model; Figure 4 This is a schematic diagram of the moving wheel of a pre-straightening device for steel coils proposed in this utility model.

[0020] Explanation of reference numerals in the attached figures: 1. Base; 2. Pre-calibration mechanism; 201. Limiting rod; 202. Mounting plate; 203. Mounting cylinder; 204. Guide roller two; 205. Guide roller one; 3. Moving mechanism; 301. Electric push rod; 302. Support rod one; 303. Support rod two; 304. Rotating groove; 305. Moving wheel; 4. Ring; 5. Support frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] Example: Please refer to Figures 1 to 4 This utility model provides a pre-straightening device for steel coils, which aims to solve the problems of complex straightening structure and inefficiency of existing pre-straightening devices for steel coils, as well as the inconvenience of moving the device and the reliance on additional handling tools.

[0023] Please refer to Figure 1 and Figure 2 The rebar coil pre-straightening device includes a base 1 and multiple support frames 5 fixedly connected to the front of the top of the base 1. The support frames 5 are used to support the pre-straightening mechanism 2. The base 1 serves as the mounting base for the entire device, providing a stable support platform for all components. A ring 4 is fixedly connected to the rear of the top of the base 1. The ring 4 is the guide entrance for the rebar to enter the pre-straightening mechanism 2. Multiple limiting rods 201 are fixedly connected between the ring 4 and the mounting plate 202. The limiting rods 201 limit the rebar after it enters from the ring 4, ensuring that the rebar accurately enters the mounting plate 202. The top of the multiple support frames 5 is fixedly connected to the mounting plate 202. The mounting plate 202 provides the mounting base for other components of the pre-straightening mechanism 2. An mounting cylinder 203 is fixedly connected to the front of the mounting plate 202. The rebar enters the inner wall of the mounting cylinder 203 from the inner wall of the mounting plate 202.

[0024] Guide roller 1 205 and guide roller 204 are vertically and fixedly connected to the inner wall of the mounting cylinder 203. Guide roller 1 205 and guide roller 204 together constitute the main part of the pre-correction mechanism 2, which is used to pre-correct the reinforcing bars. Guide roller 1 205 includes two horizontally distributed rollers. The reinforcing bars are straightened horizontally by guide roller 1 205 in the first step. Guide roller 204 includes two vertically distributed rollers. After passing through guide roller 1 205, the reinforcing bars are straightened vertically by guide roller 204 in the second step. Through the two sets of vertically distributed guide rollers, the multi-directional effective pre-correction of the reinforcing bar roll is achieved. The pre-correction mechanism 2 has a simple structure, low maintenance and use costs, high efficiency, and can meet the needs of large-scale construction.

[0025] Please refer to Figure 3 and Figure 4A moving mechanism 3 is installed in the middle of the base 1. The moving mechanism 3 includes multiple electric push rods 301, which are respectively embedded in the left and right sides of the inner wall of the base 1. The electric push rods 301 are the core power source for driving the moving mechanism 3 to rise and fall. The output end can perform linear telescopic movement. The output ends of the multiple electric push rods 301 are respectively rotatably connected to support rod one 302 and support rod two 303. Support rod one 302 and support rod two 303 are staggered to form a cross linkage structure. The outer wall of support rod two 303 has a rotating groove 304 for support rod one 302 to rotate. Support rod one 302 is rotatably connected to the outer wall of support rod two 303 through the rotating groove 304. This connection method allows the two support rods to rotate relative to each other around the middle connection point under the drive of the electric push rods 301, thereby changing the distance between the lower moving wheel 305 and the ground.

[0026] Both support rod 1 (302) and support rod 2 (303) have fixedly connected driving wheels (305) at their bottom ends. When the electric push rod (301) is started, it pushes support rod 1 (302) and support rod 2 (303) to rotate relative to each other, thereby causing the driving wheels (305) to contact the ground and lift the base 1, realizing the overall lifting and movement of the rebar coil pre-straightening device. The output end of the electric push rod (301) is rotatably connected to support rod 1 (302) and support rod 2 (303) through a pin shaft, ensuring the reliability and flexibility of motion transmission. The driving wheels (305) are universal wheels, which further enhance the movement flexibility and directional controllability of the rebar coil pre-straightening device after it is lifted.

[0027] In a preferred embodiment, in order to achieve effective lateral straightening of the reinforcing bars, the guide roller 205 includes two rollers that are distributed horizontally and vertically, and the reinforcing bars are first pre-straightened laterally by passing through these two rollers.

[0028] As another preferred embodiment, in order to achieve effective vertical straightening of the reinforcing bars, the guide roller 204 includes two rollers that are vertically distributed to the left and right. After the reinforcing bars are straightened laterally, they are further pre-straightened vertically by these two rollers to ensure the straightening accuracy of the reinforcing bar roll.

[0029] In another preferred embodiment, in order to accurately limit and guide the reinforcing bar into the pre-correction mechanism 2 after it enters from the ring 4, multiple limiting rods 201 are evenly distributed along the circumferential direction. These limiting rods 201 effectively constrain the initial path of the reinforcing bar and prevent deviation.

[0030] In another preferred embodiment, in order to provide stable structural support, there are multiple support frames 5, which are evenly distributed on the front side of the top of the base 1 to ensure that the mounting plate 202 and the pre-correction mechanism 2 can be firmly installed on the base 1.

[0031] In another preferred embodiment, in order to ensure stable and reliable motion transmission between the electric push rod 301 and the first support rod 302 and the second support rod 303, the output end of the electric push rod 301 is rotatably connected to the first support rod 302 and the second support rod 303 via a pin. The pin connection method has good rotational performance and sufficient load-bearing capacity.

[0032] As another preferred embodiment, in order to facilitate the smooth passage of the reinforcing bars inside the mounting cylinder 203 and reduce friction and jamming, the inner wall of the mounting cylinder 203 is a smooth cylindrical structure. This smooth inner wall design reduces the contact resistance between the reinforcing bars and the cylinder wall and improves the efficiency of the pre-straightening process.

[0033] As another preferred embodiment, in order to enable the steel rebar pre-straightening device to move in multiple directions and make precise position adjustments after being raised, the driving wheel 305 is a swivel wheel. The design of the swivel wheel allows the device to rotate and move freely on the horizontal plane, which greatly improves the site adaptability and ease of operation of the device.

[0034] Working principle: When using this device, the base 1 is placed on the ground, and the reinforcing bar enters the pre-correction mechanism 2 from the ring 4 for pre-correction. During this process, multiple limiting rods 201 limit the reinforcing bar and guide it into the mounting plate 202. Then, the reinforcing bar enters the inner wall of the mounting cylinder 203 from the inner wall of the mounting plate 202. Inside the mounting cylinder 203, the reinforcing bar first passes through two horizontally distributed guide rollers 205 for the first step of horizontal pre-straightening. The guide rollers 205 apply pressure to the reinforcing bar through the roller body to correct the horizontal bending of the reinforcing bar. Then, the reinforcing bar passes through two vertically distributed guide rollers 204 for the second step of vertical pre-straightening. The guide rollers 204 further eliminate the vertical bending of the reinforcing bar. Through the synergistic effect of the guide rollers 205 and 204, this device realizes multi-directional and high-efficiency pre-straightening of the reinforcing bar roll, solving the problems of low efficiency and poor straightening effect of traditional straightening methods, and ensuring that the reinforcing bar reaches the straightness required for subsequent processing. When the rebar coil pre-straightening device needs to be moved, the moving mechanism 3 located in the middle of the base 1 comes into play. The operator activates multiple electric push rods 301. The output ends of the electric push rods 301 extend or retract, driving the support rod 1 302 and support rod 2 303, which are rotatably connected to them, to rotate relative to each other. Since the outer wall of support rod 2 303 has a rotating groove 304 for support rod 1 302 to rotate, support rod 1 302 and support rod 2 303 can rotate alternately around the central rotation point. This rotation causes the moving wheels 305 connected to the bottom of support rod 1 302 and support rod 2 303 to contact the ground downwards, further lifting the base 1, so that the entire device leaves the ground and is in a movable state. The moving wheels 305 are universal wheels, which allows the device to be easily moved and positioned in various directions after being raised, greatly improving the mobility and ease of operation of the device.

Claims

1. A pre-straightening device for steel bar coils, comprising: The base (1) and the support frame (5) set on the front side of the top of the base (1) are provided. The top of the support frame (5) is fixedly connected to the mounting plate (202). The rear side of the top of the base (1) is fixedly connected to the ring (4). Multiple limiting rods (201) are fixedly connected between the ring (4) and the mounting plate (202). Its features are, The mounting plate (202) is fixedly connected to the front side of the mounting cylinder (203). The inner wall of the mounting cylinder (203) is vertically and fixedly connected to the front and back of the guide roller one (205) and the guide roller two (204), which together constitute the pre-correction mechanism (2). A moving mechanism (3) is installed in the middle of the base (1). The moving mechanism (3) includes multiple electric push rods (301). The multiple electric push rods (301) are respectively embedded in the left and right sides of the inner wall of the base (1). The output ends of the multiple electric push rods (301) are respectively rotatably connected to support rod one (302) and support rod two (303). Support rod one (302) and support rod two (303) are staggered. A rotating groove (304) is opened in the middle of the outer wall of support rod two (303) for support rod one (302) to rotate. The bottom ends of support rod one (302) and support rod two (303) are fixedly connected to driving wheels (305).

2. The pre-straightening device for reinforcing bar coils according to claim 1, characterized in that, The guide roller (205) includes two horizontally distributed rollers for laterally straightening the reinforcing bars.

3. The pre-straightening device for reinforcing steel coils according to claim 1, characterized in that, The guide roller 2 (204) includes two rollers that are vertically distributed to the left and right, and is used to vertically straighten the reinforcing bars.

4. The pre-straightening device for reinforcing steel coils according to claim 1, characterized in that, Multiple limiting rods (201) are evenly distributed along the circumference and are used to limit the reinforcing bar after it enters from the ring (4).

5. A pre-straightening device for reinforcing steel coils according to claim 1, characterized in that, The number of the support frames (5) is multiple, and the multiple support frames (5) are evenly distributed on the front side of the top of the base (1).

6. A pre-straightening device for reinforcing bar rolls according to claim 1, characterized in that, The output end of the electric push rod (301) is rotatably connected to the first support rod (302) and the second support rod (303) via a pin.

7. A pre-straightening device for reinforcing steel coils according to claim 1, characterized in that, The inner wall of the mounting cylinder (203) is a smooth cylindrical structure, which facilitates the passage of reinforcing bars.

8. A pre-straightening device for reinforcing bar coils according to claim 1, characterized in that, The moving wheel (305) is a universal wheel, which facilitates the multi-directional movement of the steel coil pre-straightening device after it is raised.

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