An automatic steel bar feeding and gripping mechanism

Abstract

This utility model discloses an automatic rebar feeding and gripping mechanism, including a gantry truss, a crane beam, a sliding box, a lifting column, a suction mechanism, a lifting and releasing mechanism, and two sets of gripping units with a dual-station layout. The suction mechanism is equipped with a magnetic suction component and a rebar-separating spiral wheel, enabling rebar adsorption and separation of multiple rebars to ensure only one rebar is retained. The lifting and releasing mechanism uses a swinging rebar-dropping roller, a swinging rebar-dropping cylinder, and a stop roller to form two-point positioning, and works in conjunction with a rebar end support cylinder and a rebar clamping cylinder to grip the entire rebar. Through the coordinated control of a lifting servo motor and a traverse servo motor, the mechanism can complete the entire automated operation of rebar gripping, separation, conveying, and placement. This utility model improves production continuity through alternating dual-station operation, adapts to the processing needs of different rebar specifications, and has a rebar axial positioning accuracy error of ≤2mm. It can be widely used in the production of building components such as tunnel segments and rebar cages, and features high efficiency, precision, and stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of building steel bar processing equipment, specifically relating to an automatic steel bar feeding and gripping mechanism. Background Technology

[0002] In the production of rebar cages for tunnel segments, traditional manual feeding methods suffer from low efficiency, high labor intensity, and significant errors in rebar spacing. Existing semi-automatic equipment largely relies on single magnetic or mechanical clamping methods, making it difficult to achieve efficient separation and precise positioning of multiple rebars, resulting in a decreased finished product qualification rate. Therefore, there is an urgent need for an intelligent single-rebar feeding mechanism that integrates automatic gripping, separation, and positioning. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic rebar feeding and gripping mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding and gripping mechanism for single-reinforcement bars, comprising: The gantry truss has a horizontal sliding rail at its top; The overhead crane beam can move along the transverse slide rail of the gantry truss, and the overhead crane beam is equipped with a lifting servo motor and a transverse servo motor. The sliding box is slidably connected to the overhead crane beam and can move laterally; A lifting column is vertically installed at the bottom of the sliding box, and its end is fixedly connected to a lifting column cross arm. The material suction mechanism is located at one end of the lifting column cross arm, including a magnetic suction component and a rib-dividing spiral wheel. After the magnetic suction component attracts the steel bars, the rib-dividing spiral wheel rotates 90° from longitudinal to horizontal. The material feeding mechanism is located at the other end of the lifting column cross arm and includes a swinging rib dropping roller and a swinging rib dropping cylinder. The swinging rib dropping cylinder drives the swinging rib dropping roller to rotate 90° to form two-point positioning. Dual-station layout: The mechanism is symmetrically set with two sets of gripping units, one inside and one outside, to work together to grip and transport the steel bars.

[0005] Preferably, the magnetic suction component of the suction mechanism includes: The telescopic cylinder is equipped with a magnetic suction cup with suction ribs at its end. A buffer spring is provided between the suction telescopic cylinder and the suction fascia magnetic suction cup. The rib-splitting reducer and rib-splitting cylinder are used to drive the rib-splitting spiral wheel to achieve a 90° rotation.

[0006] Preferably, the suction mechanism further includes: The straightening guide belt is driven by a synchronous belt motor, which drives the material lifting mechanism to move to the left, so that it lifts the single steel bar as a whole; The rib end support cylinder and the rib clamping cylinder are connected by a mounting base. The rib end support cylinder drives the clamping cylinder to move back and forth. The front jaws of the clamping cylinder clamp the rib, ensuring that the rib will not slide along with the material feeding mechanism when it moves to the left, thus preventing it from falling off the rib separating spiral wheel.

[0007] Preferably, the sliding positioning component includes a sliding guide rail and a positioning block. The positioning block moves along the guide rail under the drive of the lifting cylinder, forming a two-point support with the magnetic attraction component.

[0008] Preferably, the lifting column is equipped with a material suction mechanism and a material support mechanism at both ends of the horizontal arm. The lifting servo motor controls the lifting of the horizontal arm, and the horizontal movement servo motor drives the overhead crane beam to move laterally, so as to realize the full automation of the process of grabbing, separating and transmitting steel bars.

[0009] Preferably, the material feeding mechanism is provided with a stop roller corresponding to the swinging rebar drop roller to prevent a single rebar from falling forward on it during the operation of the material feeding mechanism.

[0010] Preferably, the magnetic force of the magnetic attraction component is adjustable.

[0011] The technical effects and advantages of this utility model are as follows: 1. Through the coordinated control of the lifting servo motor, the traverse servo motor, and the sliding box, combined with the functional cooperation of the suction mechanism and the material placement mechanism, fully automated operation from rebar grabbing to directional transmission is achieved. Single rebar extraction, posture adjustment (vertical to horizontal), and precise placement can be completed without manual intervention, solving the problems of low efficiency and high labor intensity of traditional manual material loading, and greatly improving material loading efficiency.

[0012] 2. By utilizing the 90° rotation function of the dividing spiral wheel and the adjustable magnetic force design of the magnetic suction component, a single target steel bar can be efficiently separated from multiple stacked steel bars, avoiding adhesion or multiple bars being grabbed; the material feeding mechanism forms two-point positioning through the cooperation of the swinging drop roller and the stop roller, combined with the auxiliary fixing of the bar end support cylinder and the bar clamping cylinder, ensuring that the axial positioning accuracy error of the steel bar is ≤2mm, which significantly reduces the problem of reduced finished product qualification rate caused by positioning deviation.

[0013] 3. A symmetrical dual-grip unit layout is adopted, with two sets of mechanisms alternating between gripping and transmission operations, reducing equipment idle time. In the production of tunnel segment reinforcement cages, it can meet the production rhythm requirements of using different steel bar diameters and lengths for the inner and outer arcs, thus shortening the overall production cycle time.

[0014] 4. The buffer spring effectively reduces the impact force when the magnetic suction component comes into contact with the steel bar, reducing equipment wear and steel bar deformation; the steel bar straightening guide belt is driven by a synchronous belt motor, which can synchronously correct the steel bar posture during transmission to ensure the straightness of the steel bar; the anti-drop design of the guide roller improves the stability during high-speed transmission and adapts to the processing needs of steel bars of different specifications. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention; Figure 2 This is a top view of the present invention; Figures 3-4 This is a perspective view of the present utility model; Figure 5 for Figure 3 Enlarged view of point I; Figure 6 for Figure 4 Enlarged view of section II.

[0016] In the diagram: Gantry Truss-1, Overhead Crane Beam-2 -3. Lifting column -4. Suction mechanism -5. Material placement mechanism -6. Lifting servo motor -21. Horizontal movement servo motor -22. Lifting column cross arm -41. Magnetic suction assembly -51. Rib separating spiral wheel -52. Buffer spring -53. Suction telescopic cylinder -54. Rib suction magnet suction cup -55. Rib separating reducer -56. Rib separating cylinder -57. Rib straightening guide belt -58. Synchronous belt motor -59. Rib end support cylinder -60. Rib clamping cylinder -61. Baffle roller -62. Swinging rib dropping roller -63. Swinging rib dropping cylinder -64. Detailed Implementation

[0017] 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.

[0018] The following is in conjunction with the appendix Figure 1-6 The specific embodiments of this utility model are described in detail below. This embodiment focuses on the entire process of automatic rebar feeding and gripping, and the specific steps are as follows: Equipment initialization and position adjustment: Mechanism positioning: The gantry truss 1 is fixed at the designated position on the production line. The overhead crane beam 2 is adjusted to the area above the steel bar to be grabbed via the top transverse slide rail. The sliding box 3 slides laterally along the overhead crane beam 2, so that the lifting column 4 and the end lifting column cross arm 41 are aligned with the steel bar stack position.

[0019] Parameter preset: Based on the diameter specifications of the steel bars to be processed (such as 12mm, 20mm), the magnetic strength of the magnetic suction component 51, the flipping angle of the dividing spiral wheel 52, and the positioning parameters of the material feeding mechanism 6 are preset by the control system to ensure that the steel bar size requirements are met.

[0020] 2. Rebar gripping and single-reinforcement separation: Magnetic positioning: The lifting servo motor 21 drives the lifting column 4 to descend, so that the suction magnet 55 of the suction mechanism 5 is close to the target steel bar; the suction telescopic cylinder 54 extends, and the magnetic attraction is activated after the suction cup contacts the steel bar. The buffer spring 53 buffers the contact impact force during this process to avoid steel bar deformation or equipment wear.

[0021] Single-reinforcement separation: After the magnetic suction component 51 attracts the steel bar, the steel bar separating cylinder 57 and the steel bar separating reducer 56 work together to drive the steel bar separating spiral wheel 52 to complete a 90° rotation, rotating the longitudinally stacked steel bars to a horizontal state. At the same time, the toothed structure of the spiral wheel separates the sticky excess steel bars, leaving only a single target steel bar.

[0022] 3. Reinforcing bar posture adjustment and transmission Posture correction: Synchronous belt motor 59 drives the rib straightening guide belt 58 to run, driving the material lifting mechanism 6 to move to the left, lifting the single steel bar as a whole to detach it from the stack; the rib end support cylinder 60 drives the rib clamping cylinder 61 to move forward, clamping and fixing the end of the steel bar to prevent deviation during transmission.

[0023] Lateral transmission: The lateral servo motor 22 is started, driving the overhead crane beam 2 to move along the lateral slide rail of the gantry truss 1, transferring the steel bars to the designated processing station; during the transmission process, the guide roller 62 of the material lifting mechanism 6 is in contact with the side of the steel bars to prevent the steel bars from falling off.

[0024] 4. Precise delivery and dual-station collaboration: Positioning and placement: After the steel bar reaches the target work position, the swinging steel bar dropping cylinder 64 drives the swinging steel bar dropping roller (63) to rotate 90°, switching from the horizontal lifting state to the vertical release state; at the same time, the steel bar clamping cylinder 61 is released, and the steel bar falls accurately into the designated processing position under the action of gravity, completing a single loading.

[0025] Dual-station synchronous operation: When the inner gripping unit completes the delivery, the outer gripping unit starts the gripping process simultaneously. The dual-station layout realizes the synchronization of the inner and outer arcs in "grabbing-transfer-delivery", reducing equipment waiting time and improving production efficiency.

[0026] 5. Equipment reset and status monitoring After a single operation is completed, each component is reset: the lifting column 4 rises to the initial height, the sliding box 3 returns to the waiting position, the magnetic suction component 51 turns off the magnetic force, and the rib-separating spiral wheel 52 and the swing rib-dropping roller 63 are reset to the initial angle; the control system monitors the signals of each sensor (such as position sensor and pressure sensor) in real time to ensure that there are no abnormalities in the equipment before entering the next cycle.

[0027] In summary, this utility model effectively solves the pain points of low efficiency, poor precision, and high labor intensity in the traditional steel bar feeding process through structural innovation and functional integration. It provides an efficient, stable, and intelligent automated solution for the field of building steel bar processing, combining technological innovation with engineering practicality.

[0028] The applicant further declares that while the above embodiments illustrate the implementation method and apparatus structure of this utility model, this utility model is not limited to the above-described embodiments, meaning that this utility model must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvements to this utility model, equivalent substitutions for the selected implementation methods, additions of steps, and selection of specific methods all fall within the protection and disclosure scope of this utility model.

[0029] This utility model is not limited to the above-described embodiments. All methods that use similar structures and methods to achieve the purpose of this utility model are within the protection scope of this utility model.

Claims

1. An automatic steel bar feeding and gripping mechanism, characterized in that, include: The gantry truss (1) has a transverse sliding rail at its top; The overhead crane beam (2) can move along the transverse slide rail of the gantry truss (1). The overhead crane beam (2) is equipped with a lifting servo motor (21) and a transverse servo motor (22). The sliding box (3) is slidably connected to the overhead crane beam (2) and can move laterally; The lifting column (4) is vertically installed at the bottom of the sliding box (3), and its end is fixedly connected to the lifting column cross arm (41). The material suction mechanism (5) is located at one end of the lifting column cross arm (41), including a magnetic suction component (51) and a reinforcing bar splitting spiral wheel (52). The reinforcing bar splitting spiral wheel (52) rotates 90° from longitudinal to horizontal after the magnetic suction component (51) attracts the reinforcing bar. The material feeding mechanism (6) is located at the other end of the lifting column cross arm (41), including a swinging rib dropping roller (63) and a swinging rib dropping cylinder (64). The swinging rib dropping cylinder (64) drives the swinging rib dropping roller (63) to rotate 90° to form a two-point positioning. Dual-station layout: The mechanism is symmetrically set with two sets of gripping units, one inside and one outside, to work together to grip and transport the steel bars.

2. The automatic rebar feeding and gripping mechanism according to claim 1, characterized in that, The magnetic suction component (51) of the suction mechanism (5) includes: The telescopic cylinder (54) is attached to a magnetic suction cup (55) with a suction rib. A buffer spring (53) is disposed between the suction telescopic cylinder (54) and the suction wick magnetic suction cup (55); The rib-splitting reducer (56) and rib-splitting cylinder (57) are used to drive the rib-splitting spiral wheel (52) to achieve a 90° rotation.

3. The automatic rebar feeding and gripping mechanism according to claim 1, characterized in that: The suction mechanism (5) further includes: The straightening guide belt (58) is driven by the synchronous belt motor (59), which drives the material lifting mechanism (6) to move to the left, so that it lifts the single steel bar as a whole; The rib end support cylinder (60) and the rib clamping cylinder (61) are connected by a mounting base. The rib end support cylinder (60) drives the rib clamping cylinder (61) to move back and forth. The front claw of the rib clamping cylinder (61) clamps the rib, ensuring that when the material feeding mechanism (6) moves to the left, the rib will not slide along with it and fall off the rib splitting spiral wheel (52).

4. The automatic rebar feeding and gripping mechanism according to claim 3, characterized in that, It also includes a sliding positioning component, which includes a sliding guide rail and a positioning block. The positioning block moves along the guide rail under the drive of the rib clamping cylinder (61) and forms two-point support with the magnetic suction component (51).

5. The automatic rebar feeding and gripping mechanism according to claim 1, characterized in that, The lifting column cross arm (41) is equipped with a material suction mechanism (5) and a material support mechanism (6) at both ends. The lifting servo motor (21) controls the lifting of the cross arm, and the horizontal movement servo motor (22) drives the crane beam (2) to move laterally, so as to realize the full automation of the steel bar grabbing-separation-transfer process.

6. The automatic rebar feeding and gripping mechanism according to claim 2, characterized in that, The material feeding mechanism (6) is provided with a stop roller (62) corresponding to the swing drop roller (63) to prevent a single steel bar from falling forward on it when the material feeding mechanism (6) is running.

7. The automatic rebar feeding and gripping mechanism according to claim 1, characterized in that: The magnetic force of the magnetic attraction component (51) is adjustable.

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