Bending machine
By designing annular grooves in the limit assembly of the bending machine and applying downward force to the steel bars, the problem of workers in the prior art need to press downward during the bending of the steel bars is solved, and the effect of reducing working strength and improving working efficiency is achieved.
Patent Information
- Application Number
- CN202420679295.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-03
AI Technical Summary
During the bending process of existing bending machines, staff need to press down the steel bars to maintain continuous bending deformation, resulting in an increase in working strength.
A bending machine is designed, and its limiting assembly includes an annular groove, and the linear segments of the steel bar are arranged in the annular groove. When the steel bars tend to move upward, the groove side walls of the annular groove exert downward force on the steel bars, reducing the need for staff to press downward steel bars.
By reducing the downforce on the steel bars, the work intensity of the staff is reduced, and work efficiency and safety are improved.
Smart Images
Figure CN222569103U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of metal processing, and in particular to a bending machine. Background Art
[0002] A bending machine is a steel bar bending equipment that can bend carbon round steel, hot-rolled steel, and threaded steel into the required shape.
[0003] In the prior art, a bending machine generally includes a frame, a rotating assembly, a limiting column and a driving assembly. The rotating assembly includes a disc, a center column and a positioning column arranged on the disc, the table is rotatably arranged on the table of the frame, and a gap is provided between the center column and the positioning column for placing steel bars; the driving assembly drives the rotating assembly to rotate; the limiting column is arranged on the table on one side of the rotating assembly, and the limiting column is used to abut against the steel bars.
[0004] When the bending machine is working, due to the height difference between man and machine, the worker holds one end of the steel bar and tilts the other end of the steel bar to insert between the center column and the positioning column, and abuts the steel bar against the limit column. Therefore, when the drive assembly drives the disc to rotate, the positioning column will force the steel bar to bend and deform. In this process, the steel bar segment held by the worker has a tendency to move upward; in order to maintain the continuous bending deformation of the steel bar, the worker needs to press the steel bar downward, thereby increasing the worker's work intensity. Utility Model Content
[0005] In order to reduce the work intensity of the staff, the present application provides a bending machine.
[0006] The present application provides a bending machine, which adopts the following technical solution:
[0007] A bending machine comprises a frame, a rotating assembly, a limiting assembly and a driving assembly fixed on the frame, the rotating assembly comprises a disc, a center column and a positioning column, the disc is rotatably arranged on the table of the frame, a first groove and a plurality of second grooves are arranged on the side of the disc away from the machine base, the first groove is arranged at the center of the disc, a plurality of second grooves are arranged around the first groove, the center column is inserted into the first groove, the positioning column is inserted into the second groove, and a gap for steel bars to pass through is arranged between the center column and the positioning column; The driving assembly is fixed on the frame, and the driving end of the driving assembly is connected to the disc, and the driving assembly is used to drive the disc to rotate; the limiting assembly is fixed on the table top of the frame, and the limiting assembly is arranged on one side of the rotating assembly; the limiting assembly includes a limiting plate and a limiting column, and the limiting assembly is fixedly connected to the frame, and the limiting plate is provided with a plurality of third grooves for the limiting column to be inserted, and the limiting column is used to abut against the steel bar, and the limiting column is provided with an annular groove, and the bottom wall of the annular groove is used to abut against the steel bar.
[0008] By adopting the above technical solution, the staff holds the inclined steel bar and sets one end of the steel bar between the center column and the positioning column, and the steel bar is clamped in the annular groove of the limiting column. When the driving component drives the disc to rotate, the disc drives the positioning column to rotate around the center column, so that the positioning column applies a torsional force to the steel bar to force the steel bar to bend and deform. At this time, the straight section of the steel bar is set in the annular groove of the limiting column, and the steel bar forces the limiting column to abut against the side wall of the third groove, so that the limiting column and the limiting plate are relatively fixed; when the straight section of the steel bar has a tendency to move upward, the side wall of the annular groove exerts a downward force on the steel bar. Thereby reducing the force of the staff to press the steel bar downward, achieving the purpose of reducing the work intensity of the staff.
[0009] Optionally, the groove side wall of the annular groove is an arc-shaped surface.
[0010] By adopting the above technical solution, the arc-shaped groove side wall of the annular groove is conducive to the workers placing the steel bar in the limiting groove and taking the steel bar out of the limiting groove.
[0011] Optionally, the curvature of the bottom wall of the annular groove decreases along the direction away from the rack table.
[0012] By adopting the above technical solution, the curvature of the bottom wall of the annular groove decreases, which is convenient for workers to place or remove steel bars; at the same time, it also improves the limiting effect of the side wall of the annular groove on the steel bars, thereby improving the stability of the limiting ring operation.
[0013] Optionally, a friction plate is provided on a groove side wall of the third groove, and the friction plate is used to abut against the limiting column.
[0014] By adopting the above technical solution, when the bending steel bar applies a force in the vertical direction to the limit column, a friction plate is provided between the limit plate and the limit column, thereby increasing the force between the limit column and the limit plate.
[0015] Optionally, a plurality of limiting convex rings are provided at intervals on the outer circumferential surface of the limiting column, and the limiting convex rings are arranged on the side of the limiting column close to the limiting plate; a plurality of limiting grooves are provided at intervals on the side walls of the third groove, and the limiting convex rings are clamped in the limiting grooves.
[0016] By adopting the above technical solution, when the bending steel bar applies a horizontal force to the limit column, the limit convex ring is clamped in the limit groove, so that the limit plate and the limit column are engaged, thereby increasing the interaction force between the limit plate and the limit column and improving the restraining effect of the limit column on the steel bar.
[0017] Optionally, along the length direction of the limiting column, the distance from the limiting protrusion to the central axis of the limiting column increases from both sides to the middle.
[0018] By adopting the above technical solution, the distance from the limiting convex ring to the central axis of the limiting column increases from both sides to the middle, so that the outer peripheral surface of the limiting convex ring has a guiding function, which facilitates the limiting convex ring to be clamped in the limiting groove.
[0019] Optionally, the rotating assembly further comprises a circular sleeve, wherein the sleeve is provided with a fixing hole for the central column to pass through.
[0020] By adopting the above technical solution, the staff can replace the bushings of different sizes so that the steel bar can be bent and deformed around the outer circumference of the bushing, thereby improving the use range of the bending machine.
[0021] Optionally, the fixing hole deviates from the center of the sleeve.
[0022] By adopting the above technical solution, the eccentric sleeve can change the distance from the sleeve to the center column, thereby facilitating the bending of the steel bar.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. When the straight section of the steel bar tends to move upward, the side wall of the annular groove exerts a downward force on the steel bar. This reduces the force of the staff pressing down on the steel bar, achieving the purpose of reducing the staff's work intensity;
[0025] 2. When the bending steel bar applies a horizontal force to the limit column, the limit convex ring is clamped in the limit groove, so that the limit plate and the limit column are engaged, thereby increasing the interaction force between the limit plate and the limit column and increasing the restraining effect of the limit column on the steel bar;
[0026] 3. The staff can replace the sleeves of different sizes so that the steel bar can be bent and deformed around the outer circumference of the sleeve, thereby increasing the use range of the bending machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the bending machine structure in Example 1.
[0028] Figure 2 It is a schematic diagram of the drive component structure in Example 1.
[0029] Figure 3 It is a schematic diagram of the structure of the rotating component in Example 1.
[0030] Figure 4 It is a schematic diagram of the shaft sleeve structure in Example 1.
[0031] Figure 5 yes Figure 1 Enlarged view of point A in the middle.
[0032] Figure 6 It is a schematic diagram of the structure of the limiting component in Example 1.
[0033] Figure 7 It is a schematic diagram of the structure of the limiting component in Example 2.
[0034] Figure 8 yes Figure 7 Enlarged view of point B in the middle.
[0035] Fig. 9 It is a schematic diagram of the limit assembly structure in Example 3.
[0036] Fig.10 yes Fig. 9 Enlarged view of center C.
[0037] Fig.11 It is a schematic diagram of the structure of the limiting component in Example 4.
[0038] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Rotating assembly; 21. Disc; 211. First groove; 212. Second groove; 22. Center column; 23. Positioning column; 24. Bushing; 241. Fixing hole; 3. Limiting assembly; 31. Limiting plate; 311. Third groove; 312. Limiting groove; 32. Limiting column; 321. Annular groove; 322. Limiting convex ring; 4. Driving assembly; 41. Motor; 42. Belt; 43. First bevel gear; 44. Second bevel gear; 5. Rebar; 6. Friction plate. DETAILED DESCRIPTION
[0039] The following is combined with Figure 1-11 This application is described in further detail.
[0040] The present application embodiment discloses a bending machine. Figure 1 and Figure 2 The bending machine includes a frame 1, a rotating component 2 fixed on the frame 1, a limiting component 3 and a driving component 4.
[0041] Reference Figure 1 and Figure 3, the rotating assembly 2 includes a disc 21, a center column 22, a positioning column 23 and a sleeve 24. The disc 21 is rotatably arranged on the table of the frame 1. A first groove 211 and a plurality of second grooves 212 are arranged on the side of the disc 21 away from the base. The first groove 211 is arranged at the center of the disc 21, and a plurality of second grooves 212 are arranged around the first groove 211. The center column 22 is inserted into the first groove 211; the positioning column 23 is inserted into the second groove 212; the sleeve 24 is provided with a fixing hole 241 for the center column 22 to pass through. In this embodiment, the fixing hole 241 deviates from the center of the sleeve 24. A gap is provided between the sleeve 24 and the positioning column 23 for the steel bar 5 to pass through, and the steel bar 5 is bent and deformed around the outer circumference of the sleeve 24. The staff can insert the positioning column 23 into different second grooves 212 as needed.
[0042] Reference Figure 4 The staff can replace the sleeves 24 of different sizes so that the steel bar 5 is bent and deformed around the outer periphery of the sleeve 24, thereby improving the use range of the bending machine. The eccentric sleeve 24 can change the distance from the sleeve 24 to the center column 22, thereby facilitating the bending of the steel bar 5.
[0043] Reference Figure 2 and Figure 3 , the driving assembly 4 is fixed below the table of the frame 1, and the driving end of the driving assembly 4 is connected to the disc 21, and the driving assembly 4 is used to drive the disc 21 to rotate forward or reverse. In this embodiment, the driving assembly 4 includes a motor 41, a belt 42, and two perpendicular first bevel gears 43 and second bevel gears 44. The first bevel gear 43 is connected to the bottom of the table of the frame 1, the second bevel gear 44 is fixedly connected to the disc 21, the first bevel gear 43 is meshed with the second bevel gear 44, and the motor 41 is connected to the first bevel gear 43 through the belt 42; thereby achieving the purpose of the motor 41 driving the disc 21 to rotate forward or reverse. In other embodiments, other forms of driving assemblies 4 can be used to drive the disc 21 to rotate.
[0044] Reference Figure 1 and Figure 3 The limit assembly 3 is fixed on the table of the frame 1, and the limit assembly 3 is arranged on both sides of the rotating assembly 2. The limit assembly 3 includes a limit plate 31 and a limit column 32. The limit assembly 3 is fixedly connected to the frame 1. The limit plate 31 is provided with a plurality of third grooves 311 for the limit columns 32 to be inserted. The limit columns 32 are used to abut against the steel bars 5. The staff can insert the limit columns 32 into the third grooves 311 at different positions as needed.
[0045] Reference Figure 1 and Figure 5 The limiting column 32 is provided with an annular groove 321, and the bottom wall of the annular groove 321 is used to abut against the steel bar 5. Figure 6In this embodiment, the side wall of the annular groove 321 is an arc-shaped surface; and along the direction away from the table surface of the frame 1, the curvature of the bottom wall of the annular groove 321 decreases.
[0046] The implementation principle of a bending machine in the embodiment of the present application is:
[0047] The staff holds the inclined steel bar 5 and sets one end of the steel bar 5 between the center column 22 and the positioning column 23, and the steel bar 5 is clamped in the annular groove 321 of the limiting column 32. When the driving component 4 drives the disc 21 to rotate, the disc 21 drives the positioning column 23 to rotate around the center column 22, so that the positioning column 23 applies a torsion force to the steel bar 5 to force the steel bar 5 to bend and deform. At this time, the straight section of the steel bar 5 is set in the annular groove 321 of the limiting column 32, and the steel bar 5 forces the limiting column 32 to abut against the side wall of the third groove, so that the limiting column 32 and the limiting plate 31 are relatively fixed; when the straight section of the steel bar 5 has a tendency to move upward, the side wall of the annular groove 321 exerts a downward force on the steel bar 5. Thereby reducing the force of the staff to press the steel bar 5 downward, achieving the purpose of reducing the work intensity of the staff.
[0048] The curvature of the arc-shaped bottom wall of the annular groove 321 decreases, which is convenient for the staff to place or remove the steel bar 5; at the same time, it also improves the limiting effect of the upper groove side wall of the annular groove 321 on the steel bar 5, and improves the stability of the operation of the limiting column 32.
[0049] Example 2
[0050] The difference between this embodiment 2 and embodiment 1 is that:
[0051] Reference Figure 7 and Figure 8 The side wall of the third groove 311 is provided with a friction plate 6, and the friction plate 6 is used to abut against the limit column 32. When the bending steel bar 5 applies a vertical force to the limit column 32; by providing the friction plate 6 between the limit plate 31 and the limit column 32, the force between the limit column 32 and the limit plate 31 is increased. Therefore, when the steel bar 5 applies an upward force to the limit column 32, the relative sliding between the limit column 32 and the limit plate 31 can be reduced, thereby improving the stability of the device operation.
[0052] Example 3
[0053] The difference between this embodiment 3 and embodiment 1 is that:
[0054] Reference Fig. 9 and Fig.10, a plurality of limiting protrusions 322 are arranged at intervals on the outer circumference of the limiting column 32, and the limiting protrusions 322 are arranged on the side of the limiting column 32 close to the limiting plate 31; a plurality of limiting grooves 312 are arranged at intervals on the side wall of the third groove 311, and the limiting protrusions 322 are clamped in the limiting grooves 312. Along the length direction of the limiting column 32, the distance from the limiting protrusion 322 to the central axis of the limiting column 32 increases from both sides to the middle. In this embodiment, the cross section of the limiting protrusion 322 is an arc shape. When the bending steel bar 5 applies a horizontal force to the limiting column 32, the limiting protrusion 322 is clamped in the limiting groove 312, so that the limiting plate 31 and the limiting column 32 are engaged, thereby increasing the interaction force between the limiting plate 31 and the limiting column 32, and increasing the restraining effect of the limiting column 32 on the steel bar 5. At the same time, the arc-shaped outer peripheral surface of the limiting protrusion ring 322 has a guiding function, which makes it easier for the limiting protrusion ring 322 to be clamped in the limiting groove 312.
[0055] Example 4
[0056] The difference between this embodiment 4 and embodiment 3 is that:
[0057] Reference Fig.11 In this embodiment, the cross section of the limiting protrusion ring 322 is a triangle.
[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A bending machine, characterized in that: The invention comprises a frame (1), a rotating assembly (2) fixed on the frame (1), a limiting assembly (3) and a driving assembly (4); the rotating assembly (2) comprises a disc (21), a center column (22) and a positioning column (23); the disc (21) is rotatably arranged on a table surface of the frame (1); a first groove (211) and a plurality of second grooves (212) are provided on a side of the disc (21) away from a base; the first groove (211) is arranged at the center of the disc (21); a plurality of second grooves (212) are arranged around the first groove (211); the center column (22) is inserted into the first groove (211); the positioning column (23) is inserted into the second groove (212); and a space for a steel bar (5) to pass through is provided between the center column (22) and the positioning column (23). The drive assembly (4) is fixed on the frame (1), the drive end of the drive assembly (4) is connected to the disc (21), and the drive assembly (4) is used to drive the disc (21) to rotate; the limit assembly (3) is fixed on the table of the frame (1), and the limit assembly (3) is arranged on one side of the rotating assembly (2); the limit assembly (3) comprises a limit plate (31) and a limit column (32); the limit assembly (3) is fixedly connected to the frame (1), the limit plate (31) is provided with a plurality of third grooves (311) for the limit columns (32) to be inserted, the limit columns (32) are used to abut against the steel bars (5), the limit columns (32) are provided with an annular groove (321), and the groove bottom wall of the annular groove (321) is used to abut against the steel bars (5).
2. The bending machine according to claim 1, characterized in that: The groove side wall of the annular groove (321) is an arc-shaped surface.
3. The bending machine according to claim 2, characterized in that: Along the direction away from the tabletop of the frame (1), the curvature of the bottom wall of the annular groove (321) decreases.
4. The bending machine according to claim 1, characterized in that: A friction plate (6) is provided on the groove side wall of the third groove (311), and the friction plate (6) is used to abut against the limiting column (32).
5. The bending machine according to claim 1, characterized in that: A plurality of limiting convex rings (322) are provided at intervals on the outer circumferential surface of the limiting column (32), and the limiting convex rings (322) are arranged on a side of the limiting column (32) close to the limiting plate (31); a plurality of limiting grooves (312) are provided at intervals on the groove side wall of the third groove (311), and the limiting convex rings (322) are clamped in the limiting grooves (312).
6. The bending machine according to claim 5, characterized in that: Along the length direction of the limiting column (32), the distance from the limiting protruding ring (322) to the central axis of the limiting column (32) increases from both sides to the middle.
7. The bending machine according to claim 1, characterized in that: The rotating assembly (2) further comprises a circular shaft sleeve (24), wherein the shaft sleeve (24) is provided with a fixing hole (241) for the central column (22) to pass through.
8. The bending machine according to claim 7, characterized in that: The fixing hole (241) deviates from the center of the shaft sleeve (24).