Rebar cutting and feeding positioning device

Abstract

This utility model provides a rebar cutting and feeding positioning device, belonging to the field of rebar processing technology. It includes a worktable and a feeding assembly located at the top of the outer wall of the worktable. The feeding assembly includes a guide rail, a movable seat, a movable plate, a first positioning seat, a second positioning seat, a pressing plate, and auxiliary components. The guide rail is fixedly installed at the top of the outer wall of the worktable, and the movable seat is slidably sleeved on the outer wall of the guide rail. The feeding assembly achieves precise linear displacement of the rebar along the axis of the worktable through the sliding cooperation between the guide rail and the movable seat. A reciprocating cylinder directly drives the movable seat, resulting in fast response, controllable stroke, elimination of intermediate transmission links, and small positioning error. The first and second positioning seats together form a bidirectional clamping mechanism. A horizontal cylinder pushes the second positioning seat to slide within the movable seat, allowing for real-time adjustment of the clamping gap according to the rebar diameter. Combined with the guide groove in the movable plate, it ensures that the clamping force is always along the axial direction, preventing lateral movement of the rebar.

Description

Technical Field

[0001] This utility model belongs to the field of steel bar processing technology, specifically relating to a steel bar cutting, feeding, and positioning device. Background Technology

[0002] In rebar cutting operations, traditional feeding methods commonly employ manual pushing or simple roller conveyors. Manual pushing relies on workers' experience and visual positioning, resulting in high labor intensity, inconsistent feed lengths, and cutting dimension deviations often reaching the centimeter level. While roller conveyors reduce physical exertion, the rebars slide solely on their own weight on the conveyor, lacking lateral restraint. Slender rebars are prone to swaying left and right, making it difficult to align the ends with the cutting machine blade, requiring repeated manual adjustments, which is inefficient and poses safety hazards. To overcome these shortcomings, some companies have introduced sprocket and chain traction or gear and rack pushing mechanisms. Although these solutions achieve mechanized feeding, they introduce new problems: the chain elongates after prolonged tension, increasing the meshing clearance between the rack and gear, leading to accumulated errors in the feeding stroke and a gradual decrease in repeatability. Simultaneously, the exposed sprockets and gears allow oxide scale from the rebar surface to easily get stuck in the meshing parts, causing jamming or even chain breakage, resulting in frequent maintenance. Furthermore, existing devices generally lack reliable clamping of the rebar ends, making it easy for the rebar to slip or spring back during the pushing process, and the cutting length remains difficult to guarantee. If an additional clamping mechanism is used, manual opening and closing is required, resulting in a slow cycle time. Moreover, the clamping and pushing mechanisms are arranged separately, occupying a large space and having a loose structure, making it difficult to adapt to the compact layout of automated production lines. Therefore, existing technologies suffer from defects such as poor positioning accuracy, unstable feeding, frequent maintenance, and low automation, urgently requiring a new device that can complete clamping, positioning, and precise feeding in one operation. Summary of the Invention

[0003] The purpose of this invention is to provide a rebar cutting, feeding, and positioning device, which aims to solve the problems raised in the background art.

[0004] A rebar cutting, feeding, and positioning device, comprising: Workbench; A feeding assembly is located at the top of the outer wall of the worktable. The feeding assembly includes a guide rail, a movable seat, a movable plate, a first positioning seat, a second positioning seat, a pressing plate, and auxiliary components. The guide rail is fixedly located at the top of the outer wall of the worktable. The movable seat is slidably fitted onto the outer wall of the guide rail. The first positioning seat is fixedly located on one side of the top of the outer wall of the movable seat by bolts. The second positioning seat is slidably inserted into the outer wall of the movable seat. The movable plate is fixedly located at the top of the outer wall of the first positioning seat by bolts. The second positioning seat is slidably inserted into a slot at the top of the outer wall of the movable plate. The pressing plate is slidably inserted into the center of the bottom of the outer wall of the movable plate. The auxiliary components are located on the outer wall of the worktable.

[0005] As a further improvement of this utility model, each of the two auxiliary components includes a support frame, two support rollers, and two guide rods. The two support rollers are rotatably embedded in the inner wall of the support frame, and the two guide rods are rotatably inserted into the top two sides of the outer wall of the support frame.

[0006] As a further improvement of this utility model, the two support frames are coaxially arranged on one side of the outer wall of the workbench.

[0007] As a further improvement of this utility model, a reciprocating cylinder is fixedly installed on the top of the outer wall of the workbench, and the output end of the reciprocating cylinder is fixedly installed at the bottom edge of the outer wall of the movable seat.

[0008] As a further improvement of this utility model, a horizontal cylinder is fixedly installed on one side of the outer wall of the movable seat, and the output end of the horizontal cylinder is fixedly installed at the center of one side of the outer wall of the second positioning seat. A rocker wheel is rotatably inserted on one side of the outer wall of the horizontal cylinder. A compression cylinder is fixedly installed at the center of the top of the outer wall of the movable plate, and the output end of the compression cylinder is fixedly installed at the center of the top of the outer wall of the compression plate.

[0009] As a further improvement of this utility model, a support roller is rotatably embedded on one side of the outer wall of the movable seat, and a feeding roller is rotatably embedded on the top of the outer wall of the workbench via a bracket.

[0010] Compared with existing technologies, this utility model has the following advantages: The structure is simple, compact, and reasonable; the feeding assembly achieves precise linear displacement of the reinforcing bar along the worktable axis through the sliding cooperation of the guide rail and the moving seat; the reciprocating cylinder directly drives the moving seat, resulting in fast response and controllable stroke, eliminating intermediate transmission links and minimizing positioning error; the first and second positioning seats together form a bidirectional clamping mechanism; the horizontal cylinder pushes the second positioning seat to slide within the moving seat, allowing for real-time adjustment of the clamping gap according to the reinforcing bar diameter; and the guide groove in the movable plate ensures that the clamping force is always along the axial direction, preventing lateral movement of the reinforcing bar; the extrusion cylinder drives the extrusion plate to press vertically downwards. The ends of the reinforcing bars are rigidly clamped. After clamping, the moving seat and the extrusion plate form a rigid whole. The reinforcing bars are dragged forward as a whole under the rolling support of the feeding roller and the support roller. The frictional resistance is extremely low. The feeding length is determined by the stroke of the reciprocating cylinder in one go, with high repeatability. The support roller and guide rod in the auxiliary component complete the pre-guidance and resistance reduction before the reinforcing bars enter the feeding component. The two support frames are arranged on the same axis so that the reinforcing bars are always kept on the same horizontal center line, eliminating jamming caused by bending or twisting of the material. The whole set of components is powered by cylinders, with a compact structure and convenient maintenance. It can continuously complete clamping, positioning and feeding actions, significantly improving the feeding efficiency and dimensional consistency of the reinforcing bars before cutting. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention.

[0012] Figure 2 This is a perspective view of the second positioning seat of this utility model.

[0013] Figure 3 This is a perspective view of the movable plate of this utility model. Detailed Implementation

[0014] The following description, in conjunction with the accompanying drawings, describes specific embodiments of the present invention as further improvements to the present invention.

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] Figure 1-3 It includes a workbench 1, a support frame 2, a guide rail 3, a movable seat 4, a first positioning seat 5, a second positioning seat 6, a horizontal cylinder 7, a rocker wheel 8, a support roller 9, a feeding roller 10, an extrusion cylinder 11, an extrusion plate 12, a reciprocating cylinder 13, a support roller 201, a guide rod 202, a movable plate 401, etc.

[0017] like Figure 1-3 As shown, the technical solution provided in this embodiment is as follows: A rebar cutting, feeding, and positioning device, comprising: Workbench 1; The feeding assembly is located at the top of the outer wall of the workbench 1. The feeding assembly includes a guide rail 3, a movable seat 4, a movable plate 401, a first positioning seat 5, a second positioning seat 6, an extrusion plate 12, and auxiliary components. The guide rail 3 is fixedly installed at the top of the outer wall of the workbench 1. The movable seat 4 is slidably sleeved on the outer wall of the guide rail 3. The first positioning seat 5 is fixedly installed on one side of the top of the outer wall of the movable seat 4 by bolts. The second positioning seat 6 is slidably inserted into the outer wall of the movable seat 4. The movable plate 401 is fixedly installed at the top of the outer wall of the first positioning seat 5 by bolts. The second positioning seat 6 is slidably inserted into the slot at the top of the outer wall of the movable plate 401. The extrusion plate 12 is slidably inserted into the center of the bottom of the outer wall of the movable plate 401. The auxiliary components are located on the outer wall of the workbench 1.

[0018] In a specific embodiment of this utility model, firstly, two support frames 2 are deployed on one side of the axis of the workbench 1. The reinforcing bars are concentrated on the support frames 2 via an assembly line or a lifting device. The support rollers 201 are used for drag reduction drive, and the guide rods 202 are used for constraint. After the reinforcing bars are aligned, they move towards the workbench 1 and gradually approach the top of the outer wall of the movable seat 4. The reciprocating cylinder 13 is activated to drive the movable seat 4 to move precisely on the guide rail 3. The horizontal cylinder 7 is activated to move the second positioning seat 6 on the inner wall of the movable seat 4 to squeeze the reinforcing bars. At the same time, the second positioning seat 6 moves in the slot of the movable plate 401 for limiting. Finally, the extrusion cylinder 11 is activated to lower the extrusion plate 12 and extrude the extrusion plate 12 to squeeze one end of the reinforcing bar. At this time, the reciprocating cylinder 13 is activated again to drag the reinforcing bar by the extrusion plate 12 and the movable seat 4, moving it on the feeding roller 10 to complete the feeding action.

[0019] Specifically, both auxiliary components include a support frame 2, two support rollers 201, and two guide rods 202. The two support rollers 201 are rotatably embedded in the inner wall of the support frame 2, and the two guide rods 202 are rotatably inserted into the top two sides of the outer wall of the support frame 2.

[0020] In a specific embodiment of this utility model, two guide rods 202 are respectively rotatably inserted into the top two sides of the outer wall of the support frame 2, which can prevent the steel bars from being misaligned.

[0021] Specifically, the two support frames 2 are coaxially arranged on one side of the outer wall of the workbench 1.

[0022] In a specific embodiment of this utility model, two support frames 2 are coaxially arranged on one side of the outer wall of the workbench 1, which can ensure the stability of the material supply.

[0023] Specifically, a reciprocating cylinder 13 is fixedly installed on the top of the outer wall of the workbench 1, and the output end of the reciprocating cylinder 13 is fixedly installed at the bottom edge of the outer wall of the movable seat 4.

[0024] In a specific embodiment of this utility model, the output end of the reciprocating cylinder 13 is fixedly disposed at the bottom edge of the outer wall of the movable seat 4, which can ensure the stability of the transmission.

[0025] Specifically, a horizontal cylinder 7 is fixedly installed on one side of the outer wall of the movable seat 4, and the output end of the horizontal cylinder 7 is fixedly installed at the center of one side of the outer wall of the second positioning seat 6. A rocker wheel 8 is rotatably inserted into one side of the outer wall of the horizontal cylinder 7. A compression cylinder 11 is fixedly installed at the center of the top of the outer wall of the movable plate 401, and the output end of the compression cylinder 11 is fixedly installed at the center of the top of the outer wall of the compression plate 12. The horizontal cylinder 7 in this utility model is a manually operated combined cylinder with a manual pneumatic actuator. Fine-tuning is achieved by rotating the rocker wheel 8.

[0026] In a specific embodiment of this utility model, the output end of the extrusion cylinder 11 is fixedly located at the top center of the outer wall of the extrusion plate 12, which can ensure the stable driving of the extrusion plate 12.

[0027] Specifically, a support roller 9 is rotatably embedded on one side of the outer wall of the movable seat 4, and a feed roller 10 is rotatably embedded on the top of the outer wall of the worktable 1 via a bracket.

[0028] In a specific embodiment of this utility model, a feeding roller 10 is rotatably embedded in the top of the outer wall of the workbench 1 via a bracket, which can reduce the resistance to the movement of the reinforcing bars.

[0029] The working principle of this utility model is as follows: First, two support frames 2 are deployed on one side of the axis of the workbench 1. The reinforcing bars are concentrated on the support frames 2 through the assembly line or the lifting device. The support roller 201 is used for drag reduction drive, and the guide rod 202 is used for constraint. After the reinforcing bars are aligned, they move towards the workbench 1 and gradually approach the top of the outer wall of the moving seat 4. The reciprocating cylinder 13 is started, which drives the moving seat 4 to move precisely on the guide rail 3. The horizontal cylinder 7 is started, which makes the second positioning seat 6 move on the inner wall of the moving seat 4 to squeeze the reinforcing bars. At the same time, the second positioning seat 6 moves in the slot of the movable plate 401 for limiting. Finally, the extrusion cylinder 11 is started, which makes the extrusion plate 12 descend and extrude the extrusion plate 12 to squeeze one end of the reinforcing bar. At this time, the reciprocating cylinder 13 is started again, which makes the reinforcing bar dragged by the extrusion plate 12 and the moving seat 4 and move on the feeding roller 10 to complete the feeding action.

[0030] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reinforcing bar cutting feed positioning device characterised in that, include: Workbench (1); A feeding assembly is located at the top of the outer wall of the workbench (1). The feeding assembly includes a guide rail (3), a movable seat (4), a movable plate (401), a first positioning seat (5), a second positioning seat (6), an extrusion plate (12), and an auxiliary assembly. The guide rail (3) is fixedly located at the top of the outer wall of the workbench (1). The movable seat (4) is slidably fitted onto the outer wall of the guide rail (3). The first positioning seat (5) is fixedly located on one side of the top of the outer wall of the movable seat (4) by bolts. The second positioning seat (6) is slidably inserted into the outer wall of the movable seat (4). The movable plate (401) is fixedly located at the top of the outer wall of the first positioning seat (5) by bolts. The second positioning seat (6) is slidably inserted into the slot at the top of the outer wall of the movable plate (401). The extrusion plate (12) is slidably inserted into the center of the bottom of the outer wall of the movable plate (401). The auxiliary assembly is located on the outer wall of the workbench (1).

2. The reinforcing bar cutoff and feed positioning apparatus of claim 1 wherein, Both of the auxiliary components include a support frame (2), two support rollers (201), and two guide rods (202). The two support rollers (201) are rotatably embedded in the inner wall of the support frame (2), and the two guide rods (202) are rotatably inserted into the top two sides of the outer wall of the support frame (2).

3. The reinforcing bar cutoff and feed positioning apparatus of claim 2, wherein, The two support frames (2) are coaxially arranged on one side of the outer wall of the workbench (1).

4. The reinforcing bar cutoff and feed positioning apparatus of claim 3, wherein, A reciprocating cylinder (13) is fixedly installed on the top of the outer wall of the workbench (1), and the output end of the reciprocating cylinder (13) is fixedly installed at the bottom edge of the outer wall of the movable seat (4).

5. The reinforcing bar cutoff and feed positioning apparatus of claim 4 wherein, A horizontal cylinder (7) is fixedly installed on one side of the outer wall of the movable seat (4), and the output end of the horizontal cylinder (7) is fixedly installed at the center of one side of the outer wall of the second positioning seat (6). A rocker wheel (8) is rotatably inserted on one side of the outer wall of the horizontal cylinder (7). A compression cylinder (11) is fixedly installed at the center of the top of the outer wall of the movable plate (401), and the output end of the compression cylinder (11) is fixedly installed at the center of the top of the outer wall of the compression plate (12).

6. The reinforcing bar cutoff and feed positioning apparatus of claim 5, wherein, The outer wall of the movable seat (4) is rotatably fitted with a roller (9), and the top of the outer wall of the worktable (1) is rotatably fitted with a feeding roller (10) via a bracket.

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