Rebar length splicing apparatus

Abstract

The utility model relates to reinforcing steel bar welding technical field, and disclose a reinforcing steel bar length continuation equipment, include: frame, clamping structure includes mounting seat, cushion block, lower pressing plate, upper limit stop roll and lifting roll, mounting seat fixed mounting is in the frame top surface, lower pressing plate movable installation is in the frame top, upper limit stop roll is connected with lower pressing plate rotation, cushion block is fixedly connected with mounting seat, and two lifting rolls are rotationally arranged on the top of cushion block, heating structure, friction structure, through two groups of clamping structure respectively clamping limit two reinforcing steel bars, so that two reinforcing steel bars do not deviate in the welding process, guarantee the strength of end welding, through first push rod to push lower pressing plate to move down, upper limit stop roll is close to two lifting rolls, through two lifting rolls to lift reinforcing steel bar, cooperate the pressing of upper limit stop roll, make reinforcing steel bar can be limited, restrain the jumping of reinforcing steel bar, secondly reinforcing steel bar can rotate between two lifting rolls and upper limit stop roll, improve the welding strength and quality.

Description

Technical Field

[0001] This utility model relates to the field of steel bar welding technology, and in particular to a steel bar length splicing device. Background Technology

[0002] Rebar splicing usually refers to the process during construction where the length of a rebar is insufficient to meet the requirements of a structural component, necessitating the connection of two or more rebars together.

[0003] A search revealed a prior art device for splicing reinforcing bars in construction, used to butt-joint two sections of reinforcing bars, comprising:

[0004] The first clamping device and the second clamping device are arranged at intervals along the length direction of the workbench. The first clamping device and the second clamping device are both fixedly assembled on the workbench and are used to clamp the two ends of the steel bars for stability and can also perform preliminary compression and lengthening of the two sections of steel bars.

[0005] An electromagnetic heating device, disposed between the first clamping device and the second clamping device, is used to electromagnetically heat and melt the lapped reinforcing bars; and

[0006] Two extrusion transport devices are respectively disposed on opposite sides of the first clamping device and the second clamping device; wherein each extrusion transport device includes:

[0007] A base is fixed to the workbench, and the base has a cavity.

[0008] The transport component is disposed within the cavity and is capable of selectively rotating or lifting; and

[0009] An extrusion fitting is disposed on the base and located above the transport component. When the transport component rotates, it can move the initially extruded and lengthened steel bar away from the electromagnetic heating device. When the transport component rises, it can approach the extrusion fitting so that it can work together with the extrusion fitting to clamp, extrude, and forge the initially extruded and lengthened steel bar to achieve final lengthening.

[0010] Existing technology limits the steel bars by clamping and fixing them, preventing the steel bars from rotating. This means that during the welding process, the ends can only be squeezed and fused by jumping up and down. The amplitude of the jumping is difficult to control, making it easy for the welded ends to deviate. The two steel bars after welding are not concentric, which affects the welding quality.

[0011] Therefore, we propose a rebar length splicing device. Utility Model Content

[0012] The present invention mainly addresses the technical problem of the above-mentioned rebar ends being prone to displacement, which affects welding quality, and provides a rebar length splicing device.

[0013] To achieve the above objectives, this utility model adopts the following technical solution: a rebar length splicing device, comprising:

[0014] The frame has two sets of clamping structures symmetrically arranged on its top for limiting the reinforcing bars. Each clamping structure includes a mounting base, a pad, a lower pressure plate, an upper limit roller, and a lifting roller. The mounting base is fixedly installed on the top surface of the frame, the lower pressure plate is movably installed above the frame, the upper limit roller is rotatably connected to the lower pressure plate, the pad is fixedly connected to the mounting base, and two lifting rollers are rotatably arranged on the top of the pad.

[0015] The heating structure, located above the frame between two sets of clamping structures, is used to melt the reinforcing bars.

[0016] A friction structure, set on the top of the frame, is used to grind the ends of the reinforcing bars. The friction structure includes a column and a friction plate. The column is movably set on the top of the frame, and the friction plate is fixedly connected to the column. The friction plate can move to the middle of two sets of clamping structures.

[0017] In a preferred embodiment of the present invention, the clamping structure further includes a first push rod, which is fixedly installed on the top of the frame, and the lower pressure plate is fixedly connected to the output shaft of the first push rod.

[0018] In a preferred embodiment of the present invention, the clamping structure further includes a geared motor, which is fixedly installed with the pad block, and the output shaft of the lower pressure plate is fixedly connected to the end of one of the lifting rollers.

[0019] In a preferred embodiment of this utility model, the two lifting rollers are distributed in parallel with a gap between them, and the upper limit roller can be tangent to both lifting rollers simultaneously.

[0020] In a preferred embodiment of this utility model, the heating structure includes a crossbeam, a heating coil, and a second push rod. The second push rod is fixedly connected to the frame, the crossbeam is fixedly mounted on the output shaft of the second push rod, and the heating coil is fixedly mounted on the bottom of the crossbeam.

[0021] In a preferred embodiment of this utility model, the friction structure further includes a slide table and linear guide rails. Two parallel linear guide rails are fixedly installed on the top of the frame, the slide table is slidably connected to the two linear guide rails, and the column is fixedly installed on the top surface of the slide table.

[0022] In a preferred embodiment of this utility model, the friction plate is installed on the side of the column near the midpoint of the frame, and the friction plate is locked and fixed to the column by bolts.

[0023] This utility model provides a rebar length splicing device. It has the following beneficial effects:

[0024] 1. This rebar length splicing device uses two sets of clamping structures to clamp and limit two rebars respectively, ensuring that the two rebars will not shift during welding and guaranteeing the strength of the end weld. The first push rod pushes the lower pressure plate downward, and the upper limit roller approaches the two lifting rollers. The two lifting rollers lift the rebar, and with the downward pressure of the upper limit roller, the rebar can be limited and its jumping is suppressed. Furthermore, the rebar can also rotate between the two lifting rollers and the upper limit roller. The reduction motor can drive the lifting rollers to rotate, making the rebar rotate. During the welding process, the rebar is heated evenly, which also improves the welding strength and quality.

[0025] 2. This rebar length splicing device, by pushing the slide table to slide along the linear guide rail, the slide table drives the column and friction plate to approach the center position of the frame. The friction plate enters between two rebars. Through the contact of the rotating rebar with the friction plate, the friction plate simultaneously grinds and removes rust from the ends of the two rebars, reducing the impact of end corrosion and impurities on welding. The rotating rebar can rub and squeeze the molten ends of the rebar to promote the fusion of the two rebars. Attached Figure Description

[0026] Figure 1 This is one of the overall perspective views of this utility model;

[0027] Figure 2 This is the second overall perspective view of the present utility model;

[0028] Figure 3 This is a schematic diagram of the heating structure and frame installation of this utility model;

[0029] Figure 4 This is a perspective view of the clamping structure of this utility model;

[0030] Figure 5 This is a perspective view of the friction structure of this utility model.

[0031] Legend: 10. Frame; 11. Mounting base; 12. Pad; 13. First push rod; 14. Lower pressure plate; 15. Upper limit roller; 16. Lifting roller; 17. Gear motor; 20. Crossbeam; 21. Heating coil; 22. Second push rod; 30. Column; 31. Friction plate; 32. Slide table; 33. Linear guide rail. Detailed Implementation

[0032] A rebar length splicing device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes:

[0033] The frame 10 has two sets of clamping structures symmetrically arranged on its top for limiting the reinforcing bars. The clamping structures include a mounting base 11, a pad 12, a lower pressure plate 14, an upper limit roller 15, and a lifting roller 16. The mounting base 11 is fixedly installed on the top surface of the frame 10, the lower pressure plate 14 is movably installed above the frame 10, the upper limit roller 15 is rotatably connected to the lower pressure plate 14, the pad 12 is fixedly connected to the mounting base 11, and two lifting rollers 16 are rotatably arranged on the top of the pad 12. The clamping structure also includes a first push rod 13, which is fixedly installed on the top of the frame 10. The lower pressure plate 14 is fixedly connected to the output shaft of the first push rod 13. The clamping structure also includes a reduction motor 17, which is fixedly installed to the pad 12. The output shaft of the lower pressure plate 14 is fixedly connected to the end of one of the lifting rollers 16. The two lifting rollers 16 are distributed in parallel with a gap between them. The upper limit roller 15 can be tangent to both lifting rollers 16 at the same time.

[0034] In this scheme, two sets of clamping structures are used to clamp and limit the two steel bars respectively, so that the two steel bars will not shift during the welding process, ensuring the strength of the end weld. The first push rod 13 pushes the lower pressure plate 14 to move down, and the upper limit roller 15 approaches the two lifting rollers 16. The two lifting rollers 16 lift the steel bars, and with the downward pressure of the upper limit roller 15, the steel bars can be limited and the jumping of the steel bars can be suppressed. Secondly, the steel bars can also rotate between the two lifting rollers 16 and the upper limit roller 15. The reduction motor 17 can drive the lifting rollers 16 to rotate, so that the steel bars rotate. During the welding process, the steel bars are heated evenly, which can also improve the welding strength and quality.

[0035] like Figure 3 and Figure 5 As shown, a friction structure is set on the top of the frame 10 for grinding the ends of the reinforcing bars. The friction structure includes a column 30 and a friction plate 31. The column 30 is movably set on the top of the frame 10, and the friction plate 31 is fixedly connected to the column 30. The friction plate 31 can move to the middle of the two clamping structures. The friction structure also includes a slide table 32 and a linear guide rail 33. Two parallel linear guide rails 33 are fixedly installed on the top of the frame 10. The slide table 32 is slidably connected to the two linear guide rails 33. The column 30 is fixedly installed on the top surface of the slide table 32. The friction plate 31 is installed on the side of the column 30 near the midpoint of the frame 10. The friction plate 31 is locked and fixed to the column 30 by bolts.

[0036] In this scheme, by pushing the slide table 32 to slide along the linear guide rail 33, the slide table 32 drives the column 30 and the friction plate 31 to approach the center position of the frame 10. The friction plate 31 enters between the two steel bars. Through the contact of the rotating steel bars with the friction plate 31, the friction plate 31 simultaneously grinds and removes rust from the ends of the two steel bars, reducing the impact of end corrosion and impurities on welding.

[0037] like Figure 2 and Figure 3 As shown, the heating structure is located above the frame 10 between the two sets of clamping structures for melting the reinforcing bars;

[0038] The heating structure includes a crossbeam 20, a heating coil 21, and a second push rod 22. The second push rod 22 is fixedly connected to the frame 10. The crossbeam 20 is fixedly mounted on the output shaft of the second push rod 22. The heating coil 21 is fixedly mounted on the bottom of the crossbeam 20. The heating coil 21 is an electromagnetic heating coil. The heating coil 21 and the second push rod 22 are connected to a power supply and a controller. The crossbeam 20 is raised and lowered by the second push rod 22. The raising and lowering of the second push rod 22 must be consistent with the lower pressure plate 14. The first push rod 13 and the second push rod 22 can be controlled by the same controller to maintain synchronous movement. When the ends of two steel bars approach each other, the heating coil 21 descends, and the ends of the two steel bars enter the heating coil 21 and are melted. The rotating steel bars can rub and squeeze the molten ends of the steel bars to promote the fusion of the two steel bars. After cooling, the steel bars can be removed from the heating coil 21.

[0039] The working principle of this utility model is as follows: Two sets of clamping structures clamp and limit the two steel bars respectively, preventing them from shifting during welding. The first push rod 13 pushes the lower pressure plate 14 downward, causing the upper limit roller 15 to approach the two lifting rollers 16. The two lifting rollers 16 lift the steel bars, and the downward pressure of the upper limit roller 15 further limits their movement, suppressing any jumping. Furthermore, the steel bars can rotate between the two lifting rollers 16 and the upper limit roller 15. The reduction motor 17 drives the lifting rollers 16 to rotate, causing the steel bars to rotate, thus facilitating welding. During the connection process, the steel bars are heated evenly. The slide table 32 is pushed to slide along the linear guide rail 33. The slide table 32 drives the column 30 and the friction plate 31 to approach the center of the frame 10. The friction plate 31 enters between the two steel bars. The rotating steel bars contact the friction plate 31, and the friction plate 31 simultaneously grinds and removes rust from the ends of the two steel bars. The second push rod 22 drives the crossbeam 20 to rise and fall, and the heating coil 21 descends. The ends of the two steel bars enter the heating coil 21 and are melted, so that the ground steel bar ends are fused together to achieve the extension of the steel bars.

[0040] 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 embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rebar length splicing device, characterized in that, include: The frame (10) has two sets of clamping structures for limiting the reinforcing bars symmetrically arranged on its top. The clamping structures include a mounting base (11), a pad (12), a lower pressure plate (14), an upper limit roller (15), and a lifting roller (16). The mounting base (11) is fixedly installed on the top surface of the frame (10). The lower pressure plate (14) is movably installed above the frame (10). The upper limit roller (15) is rotatably connected to the lower pressure plate (14). The pad (12) is fixedly connected to the mounting base (11). Two lifting rollers (16) are rotatably arranged on the top of the pad (12). A heating structure is set above the frame (10) between two sets of clamping structures for melting steel bars; A friction structure is set on the top of the frame (10) for grinding the ends of the steel bars. The friction structure includes a column (30) and a friction plate (31). The column (30) is movably set on the top of the frame (10). The friction plate (31) is fixedly connected to the column (30). The friction plate (31) can move to the middle of the two clamping structures.

2. The rebar splicing device according to claim 1, characterized in that: The clamping structure also includes a first push rod (13), which is fixedly installed on the top of the frame (10), and the lower pressure plate (14) is fixedly connected to the output shaft of the first push rod (13).

3. The rebar splicing device according to claim 1, characterized in that: The clamping structure also includes a geared motor (17), which is fixedly installed with the pad (12), and the output shaft of the lower pressure plate (14) is fixedly connected to the end of one of the lifting rollers (16).

4. The rebar splicing device according to claim 1, characterized in that: The two lifting rollers (16) are distributed in parallel with a gap between them, and the upper limit roller (15) can be tangent to both lifting rollers (16) at the same time.

5. The rebar splicing device according to claim 1, characterized in that: The heating structure includes a crossbeam (20), a heating coil (21), and a second push rod (22). The second push rod (22) is fixedly connected to the frame (10). The crossbeam (20) is fixedly installed on the output shaft of the second push rod (22). The heating coil (21) is fixedly installed at the bottom of the crossbeam (20).

6. The rebar splicing device according to claim 1, characterized in that: The friction structure also includes a slide (32) and a linear guide (33). Two parallel linear guides (33) are fixedly installed on the top of the frame (10). The slide (32) is slidably connected to the two linear guides (33). The column (30) is fixedly installed on the top surface of the slide (32).

7. The rebar splicing device according to claim 6, characterized in that: The friction plate (31) is installed on the side of the column (30) near the midpoint of the frame (10), and the friction plate (31) is locked and fixed to the column (30) by bolts.

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