Rolling die of steel bar bender

Abstract

The utility model discloses an edge rolling die of a steel bar bender, which comprises a steel bar bender body, an edge rolling frame and a support frame, a working disc and a positioning square bar are arranged on the steel bar bender body, and the positioning square bar is positioned on the side of the working disc; the edge rolling frame is positioned and installed on a working disc of a steel bar bender body, and the supporting frame is positioned and installed on a positioning square bar of the steel bar bender body. The device is simple in structure and convenient to operate, the labor intensity is greatly reduced, and the production efficiency is improved; and the manufactured round steel ring well meets the roundness requirement, and the machining quality is improved.

Description

A rolling die for a rebar bending machine Technical Field

[0001] This utility model relates to the field of tooling processing technology, specifically to a rolling mold for a rebar bending machine. Background Technology

[0002] In the original technology, the rolling process involved first cutting several steel bars to be rolled to the required dimensions, then welding the ends of the bars together. After welding, the bars were placed between the upper and lower rollers of a plate rolling machine, where a sledgehammer was used to hammer the ends of the bars into a certain arc before they could be rolled into a circle. The rolled circle was then removed, the ends of the bars were welded together again, and each bar was separated using a tool. Finally, it was shaped to ensure roundness before the process was considered complete. This process required a lot of manpower and time, and was extremely inefficient. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing background technology and provide a rolling mold for a rebar bending machine.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a rolling mold for a rebar bending machine, including a rebar bending machine body, a rolling frame and a support frame, wherein the rebar bending machine body is provided with a working disc and a positioning bar, and the positioning bar is located on the side of the working disc; the rolling frame is positioned and installed on the working disc of the rebar bending machine body, and the support frame is positioned and installed on the positioning bar of the rebar bending machine body.

[0005] Furthermore, the rolling frame includes a rolling frame body, which is composed of a round tube and a disc. The round tube is welded and fixed to the disc. The disc has a central hole and positioning holes that pass through it from top to bottom. The central hole is located at the center point of the disc, and there are two positioning holes symmetrically distributed on both sides of the central hole. A ring of supporting ribs is welded and fixed to the bottom of the outer wall of the round tube, and a fixing hole is welded and fixed to the top of one end of the supporting ribs.

[0006] Furthermore, the fixing hole component is selected as a nut.

[0007] Furthermore, the working disc is provided with a central pin hole and multiple bending pin holes, wherein the central pin hole is located at the center point of the working disc, and the multiple bending pin holes are arranged in a square pattern and evenly distributed around the central pin hole; the central hole of the above-mentioned rolling frame is coaxial with the central pin hole and is fixed by inserting the central pin; the positioning hole of the above-mentioned rolling frame is coaxial with two of the bending pin holes respectively and is fixedly connected by bending pins.

[0008] Furthermore, the support frame includes a main frame, a sliding shaft, pulleys, and connecting pins. The sliding shaft is vertically mounted on the main frame via two fixed plates, which are spaced apart and parallel to the main frame. The pulleys are coaxially and rotatably mounted on the sliding shaft, and can slide up and down along the sliding shaft. There are two connecting pins, which are fixedly mounted at intervals on the bottom of the main frame.

[0009] Furthermore, two stabilizing columns are welded and fixed to the support frame, located above the two connecting pins respectively.

[0010] Furthermore, two positioning bars are provided, symmetrically installed on the body of the rebar bending machine, and each positioning bar is provided with multiple positioning shaft holes; the connecting pins in the support frame are inserted into the corresponding positioning shaft holes.

[0011] Furthermore, the main body of the rolling frame has a cylindrical structure in which the round tube and the round disk are integrally formed, with an opening at the top.

[0012] Furthermore, the sliding shaft is provided with an external thread, and the pulley and the sliding shaft are connected by a threaded rotation.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure and is easy to operate. It only takes 5 minutes to operate once and can make 8 round steel rings, which greatly reduces labor intensity and improves production efficiency; moreover, the round steel rings produced meet the roundness requirements well and improve the processing quality. Attached Figure Description

[0014] Figure 1 is a top view of the steel bar bending machine body of this utility model;

[0015] Figure 2 is a longitudinal sectional view of the rolling frame in this utility model;

[0016] Figure 3 is a front view of the support frame in this utility model;

[0017] Figure 4 is a left view of the support frame in this utility model;

[0018] Figure 5 shows the assembly relationship between the rolling frame and the support frame in this utility model;

[0019] In the diagram: 1. Rebar bending machine body; 2. Rolling frame; 3. Support frame; 11. Working disc; 12. Positioning square bar; 13. Center pin hole; 14. Pressing pin hole; 15. Positioning shaft hole; 21. Round tube; 22. Disc; 23. Supporting bar; 24. Fixing hole; 25. Center hole; 26. Positioning hole; 31. Main frame; 32. Sliding shaft; 33. Pulley; 34. Connecting pin; 35. Stabilizing column; 36. Fixing plate. Detailed Implementation

[0020] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "coaxial" and other terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. They are only used to facilitate the description of the structural relationship of each component in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this utility model.

[0021] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0023] As shown in Figures 1 to 5, a rolling mold for a rebar bending machine includes a rebar bending machine body 1, a rolling frame 2, and a support frame 3. The rebar bending machine body 1 is provided with a working disc 11 and positioning square bars 12. There are two positioning square bars 12, which are symmetrically arranged above the rebar bending machine body 1 and located beside the working disc 11. The working disc 11 has a central pin hole 13 and multiple bending pin holes 14. The central pin hole 13 is located at the center point of the working disc 11, and the multiple bending pin holes 14 are arranged in a square and evenly distributed around the central pin hole 13. Each positioning square bar 12 is provided with multiple positioning shaft holes 15.

[0024] The coiling frame 2 is positioned and installed on the working disc 11 of the rebar bending machine body 1. It includes a coiling frame body, which is composed of a round tube 21 and a disc 22. The round tube 21 is a Φ320 round tube, which is welded and fixed to the Φ300 disc 22. The disc 22 forms the bottom of the round tube 21. The disc 22 is provided with a central hole 25 and a positioning hole 26 that pass through it from top to bottom. The central hole 25 is located at the center point of the disc 22. There are two positioning holes 26, which are symmetrically distributed on both sides of the central hole 25. A ring of supporting ribs 23 is welded and fixed to the bottom of the outer wall of the round tube 21. The supporting ribs 23 are made of Φ12 steel bars to support the rebar to be coiled. A fixing hole 24 is welded and fixed above one end of the supporting ribs 23. The fixing hole 24 is made of M14 nuts and is used to fix the rebar to be processed.

[0025] The support frame 3 is positioned and installed on the positioning bar 12 of the rebar bending machine body 1. It includes a main frame 31, a sliding shaft 32, a pulley 33, and a connecting pin 34. The upper and lower ends of the sliding shaft 32 are respectively installed on the main frame 31 through fixing plates 36. The sliding shaft 32 is spaced apart from the front side wall of the main frame 31 and is vertically parallel. The pulley 33 is made of Φ55 round steel and is coaxially mounted on the sliding shaft 32, and can slide up and down along the sliding shaft 32. There are two connecting pins 34, which are fixedly installed at intervals on the bottom of the main frame 31. At the same time, two stabilizing columns 35 are also welded and fixed on the main frame 31, respectively located above the two connecting pins 34. The two stabilizing columns 35 ensure that the support frame 3 can be stably placed on the positioning bar 12.

[0026] In a further optimized technical solution, the outer wall of the sliding shaft 32 is provided with an external thread, and the pulley 33 and the sliding shaft 32 are connected by a threaded rotation.

[0027] In use, the center hole 25 of the above-mentioned rolling frame 2 is coaxial with the center pin hole 13 on the above-mentioned working disc 11 and is fixed by the center pin insertion; the positioning hole 26 of the above-mentioned rolling frame 2 is coaxial with two of the bending pin holes 14 on the above-mentioned working disc 11 and is fixedly connected by two corresponding bending pins; the two connecting pins 34 in the above-mentioned support frame 3 can be positioned and inserted into the positioning shaft hole 15 on the corresponding positioning square bar 12. During the processing, only one end of the 9-meter long steel bar needs to be inserted into the fixing hole 24 of the rolling frame 2, and then the steel bar bending machine is started. The working disc 11 rotates, driving the rolling frame 2 to rotate. The steel bar is squeezed by the rolling frame 2 and the support frame 3 to complete the rolling; during the rolling process, the steel bar moves upward gradually along the sliding shaft 32 through the pulley 33, and can form 8 round steel bars layer by layer. Then it is removed and cut at the starting end by gas cutting to form 8 independent round steel rings. The above operation takes only 5 minutes to produce 8 round steel rings, greatly improving production efficiency.

[0028] The above technical solutions are based on existing equipment and do not yet describe in detail the relevant technical features. They can be achieved by adopting or referencing existing technologies.

[0029] As another embodiment of this utility model, the circular tube 21 and the disc 22 in the above-mentioned rolling frame body can adopt an integrally formed cylindrical structure with an opening at the upper end.

[0030] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A rolling die for a rebar bending machine, characterized in that: The machine includes a rebar bending machine body, a rolling frame, and a support frame. The rebar bending machine body is equipped with a working disc and a positioning bar, with the positioning bar located beside the working disc. The rolling frame is positioned and installed on the working disc of the rebar bending machine body, and the support frame is positioned and installed on the positioning bar of the rebar bending machine body.

2. A curling die for a rebar bender as defined in claim 1, wherein: The rolling frame includes a rolling frame body, which is composed of a round tube and a disc. The round tube is welded and fixed to the disc. The disc has a central hole and positioning holes that pass through it from top to bottom. The central hole is located at the center point of the disc. There are two positioning holes, which are symmetrically distributed on both sides of the central hole. A ring of supporting ribs is welded and fixed to the bottom of the outer wall of the round tube. A fixing hole is welded and fixed to the top of one end of the supporting ribs.

3. The rolling die for a rebar bending machine according to claim 2, characterized in that: The fixing hole is made of nut.

4. The rolling die for a rebar bending machine according to claim 2, characterized in that: The working disc is provided with a central pin hole and multiple bending pin holes. The central pin hole is located at the center point of the working disc, and the multiple bending pin holes are arranged in a square and evenly distributed around the central pin hole. The central hole of the rolling frame is coaxial with the central pin hole and is fixed by inserting the central pin. The positioning hole of the rolling frame is coaxial with two of the bending pin holes and is fixed by positioning and fixing by bending pins.

5. A curling die for a rebar bender as defined in claim 1 wherein: The support frame includes a main frame, a sliding shaft, pulleys, and connecting pins. The sliding shaft is vertically mounted on the main frame via two fixed plates, which are spaced apart and parallel to the main frame. The pulleys are coaxially mounted on the sliding shaft and can slide up and down along the sliding shaft. There are two connecting pins, which are fixedly mounted at intervals on the bottom of the main frame.

6. A curling die for a rebar bender as defined in claim 5 wherein: Two stabilizing columns are also welded and fixed to the support frame, located above the two connecting pins respectively.

7. A rolling die for a rebar bending machine according to claim 5 or 6, characterized in that: Two positioning bars are provided and are symmetrically installed on the body of the rebar bending machine. Each positioning bar has multiple positioning shaft holes. The connecting pins in the support frame are inserted into the corresponding positioning shaft holes.

8. The rolling die for a rebar bending machine according to claim 2, characterized in that: The main body of the rolling frame consists of a cylindrical structure in which the round tube and the round disk are integrally formed, with an opening at the top.

9. A curling die for a rebar bender as defined in claim 5 wherein: The sliding shaft is provided with an external thread, and the pulley and the sliding shaft are connected by a threaded rotation.

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