Constructional engineering steel bar cutting-off equipment
By designing the guide groove and conveyor roller system, the problem of unstable rebar during the rebar cutting process was solved, resulting in a smooth rebar cut surface and improved work efficiency.
Patent Information
- Application Number
- CN202423228949.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In current construction, steel bar cutting machines struggle to keep the steel bars stable, resulting in uneven cut surfaces, high labor intensity for workers, and low work efficiency.
The system employs a guide trough and conveyor roller system. The conveyor rollers are driven by a motor to clamp the reinforcing bars, and combined with a cutting mechanism, stable cutting is achieved to ensure that the cut surface of the reinforcing bars is flat.
It achieves stability and smoothness in steel bar cutting, reduces the labor intensity of workers, and improves work efficiency.
Smart Images
Figure CN223789456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, and more specifically, to a steel bar cutting device for building construction. Background Technology
[0002] When purchasing steel bars at a construction site, they are usually purchased from the same source. However, the required length of the steel bars varies depending on the location of their use. To reduce unnecessary waste of raw materials and make the same steel bar suitable for different parts of the building, it is necessary to cut the entire long steel bar.
[0003] Currently, rebar cutting machines typically require construction workers to hold both ends of the rebar and use rotating cutting blades for cutting. During cutting, the blades come into contact with the rebar as they rotate, causing the rebar to be subjected to horizontal forces. In addition, because rebar has a certain degree of flexibility, it is not easy to keep it stable when manually held, causing the rebar to sway from side to side, which can easily lead to uneven cut surfaces. Furthermore, workers need to lift and push the rebar to cut a long steel bar into multiple short rebar segments. This results in high labor intensity and low work efficiency for workers. The speed at which workers manually push the rebar is also unstable, which can easily lead to rebars of varying lengths. Utility Model Content
[0004] In view of the above-mentioned deficiencies of the prior art, a steel bar cutting device for building engineering is provided.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a steel bar cutting device for building engineering, including a base, a guide platform on the base, a guide groove extending in the left and right direction on the guide platform, two first conveying rollers on the base near one end of the guide groove, the two first conveying rollers being symmetrically arranged in the front-back direction about the axis of the guide groove, two second conveying rollers on the base near the other end of the guide groove, the two second conveying rollers also being symmetrically arranged in the front-back direction about the axis of the guide groove, a driving mechanism on the base for driving the two first conveying rollers to move closer or further away from each other, the driving mechanism also driving the two second conveying rollers to move closer or further away from each other, a first motor on the base for driving any first conveying roller to rotate, a second motor on the base for driving any second conveying roller to rotate, and a cutting mechanism for cutting steel bars on the base.
[0006] Preferably, the driving mechanism includes a bidirectional lead screw and a third motor that drives the bidirectional lead screw to rotate. The base has a cavity, the third motor is disposed on the inner bottom surface of the cavity, the bidirectional lead screw is disposed on the output shaft of the third motor, the bidirectional lead screw extends in the front-rear direction, and both ends of the bidirectional lead screw are threadedly connected to sliders. Two connecting rods are disposed on one slider, the first motor and the second motor are disposed on the other slider, and both the first motor and the second motor are disposed on a rotating shaft. The first conveying roller and the second conveying roller located on the same side are rotatably connected to the corresponding connecting rods, and the first conveying roller and the second conveying roller located on the other side are disposed on the corresponding rotating shafts. The base is provided with a clearance through hole to avoid the movement of the connecting rods and the rotating shafts.
[0007] Preferably, a slide rail in the front-to-back direction is provided on the inner bottom surface of the cavity, and a slide groove is provided on the slider, which slides on the slide rail through the slide groove.
[0008] Preferably, the cutting mechanism includes an electric saw and a first support frame. The first support frame is mounted on a base and has a telescopic motor mounted on it. The telescopic motor is located directly above the position between the first conveying roller and the guide table. The electric saw is connected to the output shaft of the telescopic motor.
[0009] Preferably, a mounting plate is provided on the output shaft of the telescopic motor, the electric saw is connected to the telescopic motor through the mounting plate, a pressure plate is provided directly above the guide table and located below the mounting plate, the pressure plate is lower than the electric saw, and an elastic telescopic mechanism connecting the pressure plate is also provided on the bottom surface of the mounting plate.
[0010] Preferably, the elastic telescopic mechanism includes a sleeve and a telescopic rod. The sleeve is vertically arranged on the bottom surface of the mounting plate, and the telescopic rod is slidably positioned in the sleeve. The bottom end of the telescopic rod extends out of the sleeve and connects to the pressure plate. A spring is provided between the top end of the telescopic rod and the inner top surface of the sleeve. A limiting groove extending along the axis of the guide groove is provided on the bottom surface of the pressure plate.
[0011] Preferably, the base is provided with a roller conveyor line and a second support frame for supporting the roller conveyor line on the side near the first conveyor roller.
[0012] The beneficial effects of this utility model are as follows: the guide groove on the guide platform guides the conveyed steel bars, and the steel bars are conveyed at a uniform speed by the first motor, two first conveying rollers, a second motor, and two second conveying rollers, which makes it easy to control the length of the steel bar cutting and keep the length of the cut steel bar consistent. The drive mechanism makes the two first conveying rollers and two second conveying rollers clamp the steel bar in the middle, so that the steel bar will not swing horizontally when the cutting mechanism cuts the steel bar, and the cut surface of the steel bar is flat. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the base in an embodiment of this utility model;
[0015] Figure 3 This is a cross-sectional structural schematic diagram of the elastic telescopic mechanism according to an embodiment of this utility model.
[0016] Reference numerals: 1 base, 10 cavity, 11 clearance through hole, 2 guide table, 20 guide groove, 3 first conveying roller, 30 first motor, 4 second conveying roller, 40 second motor, 5 bidirectional lead screw, 50 third motor, 51 slider, 510 slide groove, 52 connecting rod, 53 rotating shaft, 54 slide rail, 6 electric saw, 60 first support frame, 61 telescopic motor, 62 mounting plate, 63 pressure plate, 630 limiting groove, 7 elastic telescopic mechanism, 70 sleeve, 71 telescopic rod, 72 spring, 8 roller conveyor line, 9 second support frame. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In addition, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand this utility model, and are not intended to indicate or imply the necessary orientation of this utility model. Therefore, they should not be construed as limitations on this utility model.
[0018] Examples of embodiments of this utility model Figures 1 to 3As shown, a steel bar cutting device for construction engineering includes a base 1, a guide platform 2 on the base 1, and a guide groove 20 extending in a left-right direction on the guide platform 2. The guide groove 20 has a semi-circular structure. Two first conveying rollers 3 are arranged on the base 1 near one end of the guide groove 20, located on the right side of the guide groove 20, and are symmetrically arranged about the axis of the guide groove 20 in a front-back direction. Two second conveying rollers 4 are arranged on the base 1 near the other end of the guide groove 20, located on the left side of the guide groove 20, and are also symmetrically arranged about the axis of the guide groove 20 in a front-back direction. A driving mechanism is provided on the base 1 to drive the two first conveying rollers 3 to move closer or further away from each other, and the driving mechanism also drives the two second conveying rollers 4 to move closer or further away from each other. A first motor 30 is provided on the base 1 to drive any first conveying roller 3 to rotate, and a second motor 40 is provided on the base 1 to drive any second conveying roller 4 to rotate. A cutting mechanism for cutting steel bars is also provided on the base 1.
[0019] The conveyed steel bars are guided by the guide groove 20 on the guide table 2. The steel bars are conveyed at a constant speed by the first motor 30, two first conveying rollers 3, a second motor 40, and two second conveying rollers 4, which facilitates control of the steel bar cutting length and keeps the cut steel bar length consistent. After the two first conveying rollers 3 and two second conveying rollers 4 convey the steel bar to the cutting position, the cutting mechanism cuts the steel bar. The two second conveying rollers 4 convey the cut short steel bars out of the equipment. The two first conveying rollers 3 continue to convey the remaining steel bars to the two second conveying rollers 4. Then the first conveying rollers 3 and two second conveying rollers 4 continue to convey the steel bars to the cutting position. The drive mechanism makes the two first conveying rollers 3 and two second conveying rollers 4 clamp the steel bars in the middle, so that the steel bars will not swing horizontally when the cutting mechanism cuts the steel bars, making the cut surface of the steel bars flat.
[0020] Further improvements, such as Figure 1 and Figure 2As shown, the driving mechanism includes a bidirectional lead screw 5 and a third motor 50 that drives the bidirectional lead screw 5 to rotate. A cavity 10 is provided inside the base 1. The third motor 50 is disposed on the inner bottom surface of the cavity 10. The bidirectional lead screw 5 is disposed on the output shaft of the third motor 50. The bidirectional lead screw 5 extends in the front-rear direction. Both ends of the bidirectional lead screw 5 are threadedly connected to sliders 51. The sliders 51 are cuboid structures extending in the left-right direction. Two connecting rods 52 are provided on each slider 51, corresponding to the left and right ends of the rear slider 51. A first motor 30 and a second motor 40 are disposed on another slider 51, corresponding to the left and right ends of the front slider. A rotating shaft 53 is provided on both the first motor 30 and the second motor 40. The first motor 30 and the second motor 40 are located on the same side of the first motor 51. The first conveyor roller 3 and the second conveyor roller 4 are rotatably connected to the corresponding connecting rod 52. That is, the first conveyor roller 3 and the second conveyor roller 4 located on the rear side are rotatably connected to the corresponding connecting rod 52. The first conveyor roller 3 and the second conveyor roller 4 located on the other side are set on the corresponding rotating shaft 53. That is, the first conveyor roller 3 and the second conveyor roller 4 located on the front side are fixedly set on the corresponding rotating shaft 53. The base 1 is provided with a clearance through hole 11 to avoid the movement of the connecting rod 52 and the rotating shaft 53. There are two clearance through holes 11, which are respectively set on the left and right sides of the top surface of the base 1. The clearance through hole 11 is a strip structure extending in the front and back direction. The third motor 50 drives the bidirectional lead screw 5 to rotate, so that the slider 51 drives the two first conveyor rollers 3 to move closer or further away from each other through the connecting rod 52 and the rotating shaft 53, and at the same time drives the two second conveyor rollers 4 to move closer or further away from each other.
[0021] Further improvements, such as Figure 1 and Figure 2 As shown, a slide rail 54 in the front-to-back direction is provided on the inner bottom surface of the cavity 10. Preferably, there are two slide rails 54, which are respectively provided on the left and right sides of the bottom surface of the cavity 10. The slider 51 is provided with a slide groove 510. The slider 51 slides on the slide rail 54 through the slide groove 510. The slide rail 54 and the slide groove 510 make the movement of the slider 51 more stable.
[0022] Further improvements, such as Figure 1 As shown, the cutting mechanism includes an electric saw 6 and a first support frame 60. The first support frame 60 is mounted on the base 1 and a telescopic motor 61 is mounted on the first support frame 60. The telescopic motor 61 is located directly above the position between the first conveying roller 3 and the guide table 2. The position between the first conveying roller 3 and the guide table 2 is the rebar cutting station. The electric saw 6 is connected to the output shaft of the telescopic motor 61. Preferably, the electric saw 6 is a disc-shaped electric saw. The electric saw 6 is driven to move up and down by the telescopic motor 61, thereby cutting the rebar.
[0023] Further improvements, such as Figure 1 and Figure 3 As shown, a mounting plate 62 is provided on the output shaft of the telescopic motor 61. The electric saw 6 is connected to the telescopic motor 61 through the mounting plate 62. The electric saw 6 is set on the bottom surface of the mounting plate 62. A pressure plate 63 is provided directly above the guide platform 2 and located below the mounting plate 62. The pressure plate 63 is lower than the electric saw 6. An elastic telescopic mechanism 7 connecting the pressure plate 63 is also provided on the bottom surface of the mounting plate 62. That is, the pressure plate 63 is set directly above the guide platform 2 through the elastic telescopic mechanism 7. The elastic telescopic mechanism 7 includes a sleeve 70 and a telescopic rod 71. The sleeve 70 is vertically set on the bottom surface of the mounting plate 62. The telescopic rod 71 is slidably positioned within the sleeve 70. The bottom end of the telescopic rod 71 extends out of the sleeve 70 and connects to the pressure plate 63. A spring 72 is provided between the top end of the telescopic rod 71 and the inner top surface of the sleeve 70. A limiting groove 630 extending along the axis of the guide groove 20 is provided on the bottom surface of the pressure plate 63. Preferably, the limiting groove 630 has an equilateral triangle cross section. Before the telescopic motor 61 drives the electric saw 6 to move down and cut the reinforcing bar through the mounting plate 62, the pressure plate 63 pre-presses the reinforcing bar through the elastic telescopic mechanism 7. The pressure plate 63 and the limiting groove 630 prevent the reinforcing bar from sliding vertically during cutting, thereby improving the quality of the reinforcing bar cutting.
[0024] Further improvements, such as Figure 1 As shown, the base 1 is provided with a roller conveyor line 8 and a second support frame 9 supporting the roller conveyor line 8 on the side near the first conveying roller 3. Preferably, the roller conveyor line 8 is a non-powered roller conveyor line, which supports long steel bars and assists the equipment in conveying steel bars.
[0025] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A construction engineering steel bar cutting-off apparatus comprising a base; characterized in that, The base is provided with a guide table; the guide table is provided with a left-right direction extending guide groove; the base is provided with two first conveying rollers at the position close to one end of the guide groove; the two first conveying rollers are symmetrically arranged in the front-back direction of the axis of the guide groove; the base is provided with two second conveying rollers at the position close to the other end of the guide groove; the two second conveying rollers are also symmetrically arranged in the front-back direction of the axis of the guide groove; the base is provided with a driving mechanism for driving the two first conveying rollers to move close to or away from each other; the driving mechanism also drives the two second conveying rollers to move close to or away from each other; the base is provided with a first motor for driving any first conveying roller to rotate; the base is provided with a second motor for driving any second conveying roller to rotate; the base is further provided with a cutting mechanism for cutting steel bars.
2. A construction engineering reinforcing bar cutting apparatus according to claim 1, wherein The driving mechanism comprises a bidirectional screw rod and a third motor for driving the bidirectional screw rod to rotate; the base is provided with a cavity; the third motor is arranged on the inner bottom surface of the cavity; the bidirectional screw rod is arranged on the output shaft of the third motor; the bidirectional screw rod extends in the front-back direction; the two ends of the bidirectional screw rod are both threadedly connected with a sliding block; two connecting rods are arranged on one sliding block; the first motor and the second motor are arranged on the other sliding block; a rotating shaft is arranged on the first motor and the second motor; the first conveying roller and the second conveying roller located on the same side are rotatably connected to the corresponding connecting rod; the first conveying roller and the second conveying roller located on the other side are arranged on the corresponding rotating shaft; the base is provided with an avoiding through hole for avoiding the movement of the connecting rod and the rotating shaft.
3. A construction engineering reinforcing bar cutting apparatus according to claim 2, wherein The inner bottom surface of the cavity is provided with a front-back direction sliding rail; the sliding block is provided with a sliding groove; the sliding block is slidably arranged on the sliding rail through the sliding groove.
4. A construction engineering reinforcing bar cutting apparatus according to claim 1, wherein The cutting mechanism comprises an electric saw and a first support frame; the first support frame is arranged on the base; a telescopic motor is arranged on the first support frame; the telescopic motor is located directly above the position between the first conveying roller and the guide table; The electric saw is connected to the output shaft of the telescopic motor.
5. A construction engineering reinforcing bar cutting apparatus according to claim 4, wherein A mounting plate is arranged on the output shaft of the telescopic motor; the electric saw is connected to the telescopic motor through the mounting plate; a pressing plate located below the mounting plate is arranged directly above the guide table; the pressing plate is lower than the electric saw; a elastic telescopic mechanism for connecting the pressing plate is further arranged on the bottom surface of the mounting plate.
6. A construction engineering reinforcing bar cutting apparatus according to claim 5, wherein The elastic telescopic mechanism comprises a sleeve and a telescopic rod; the sleeve is vertically arranged on the bottom surface of the mounting plate; the telescopic rod is limitingly slidably arranged in the sleeve; the bottom end of the telescopic rod extends out of the sleeve and is connected with the pressing plate; a spring is arranged between the top end of the telescopic rod and the inner top surface of the sleeve; a limiting groove extending along the axis direction of the guide groove is arranged on the bottom surface of the pressing plate.
7. A construction work reinforcing bar cutting apparatus according to claim 1, wherein The side of the base close to the first conveying roller is provided with a roller conveying line and a second support frame for supporting the roller conveying line.