Flat iron bending device

Abstract

The utility model belongs to the technical field of bending tools, and particularly relates to a flat iron bending device which comprises a base and a driving handle, and one end of the driving handle is hinged to the base. A lower pressing plate is fixed on the driving handle; a deformation frame is fixedly connected to the base, and the lower pressing plate can stretch into the deformation frame. A shaping block is fixed on the base, the shaping block is rotationally connected with the base, and a corresponding connecting lug is arranged on the base; a limiting piece is arranged between the shaping block and the connecting lug; a lower pressing block is fixed to the driving handle and makes contact with the shaping block. The flat iron is preliminarily bent through cooperation between the lower pressing plate and the deformation frame; the flat iron subjected to primary bending is placed between the lower pressing block and the shaping block, and the flat iron is finally bent through cooperation between the lower pressing block and the shaping block. By means of the structural arrangement, it can be effectively guaranteed that the angles of the finally-bent flat iron are consistent, and deviation is reduced. And the lengthening sleeve is arranged, so that the force arm can be effectively lengthened, and the labor-saving purpose is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending tools, and particularly relates to a flat iron bender. Background Art

[0002] With the rapid development of construction, the flat iron brackets in the electrical shaft need to be bent quickly. However, material waste often occurs during the bending of flat iron in construction. Therefore, during the electromechanical construction process, the bending of flat iron brackets has become the key control point. Some flat iron bending tools use a structure similar to a "guillotine" for bending; its structure is simple and convenient to use.

[0003] However, for this "guillotine" - type structure, during the bending process, the operator needs to control the angle after bending according to the pressing amplitude. But in the actual use process, it cannot ensure that the pressing amplitude is the same each time, which leads to deviations and inconsistencies in the angles of the bent flat iron. Summary of the Utility Model

[0004] In view of the above - mentioned technical problems, the utility model provides a flat iron bender, which can perform final shaping after preliminary bending, so as to ensure that the angles after bending are basically the same and reduce deviations.

[0005] In order to solve the above - mentioned technical problems, the technical solution adopted by the utility model is as follows:

[0006] A flat iron bender includes a base and a driving handle. One end of the driving handle is hinged to the base; a lower pressing plate is fixed on the driving handle; a deformation frame is fixedly connected to the base, and the lower pressing plate can extend into the deformation frame; a shaping block is fixed on the base, and the shaping block is rotatably connected to the base, and there are corresponding connecting ears on the base; a limiting member is arranged between the shaping block and the connecting ears; a pressing block is fixed on the driving handle, and the pressing block contacts the shaping block.

[0007] The shaping block is provided with a plurality of convex ribs, and the angles of each convex rib are different.

[0008] The limiting member adopts a limiting pin; the limiting pin is slidably connected to the connecting ear; the shaping block is provided with pin holes connected to the limiting pin; at least two pin holes are provided.

[0009] The other end of the driving handle is connected with an extension sleeve, and the extension sleeve is slidably connected to the driving handle.

[0010] The deformation frame is provided with a positioning component; the flat iron is positioned through the positioning component.

[0011] The positioning component includes a connecting column, a fixed positioning plate, and a movable positioning plate; both the fixed positioning plate and the movable positioning plate are located within the deformation frame; the connecting column is slidably connected to the deformation frame; springs are provided at both ends of the connecting column and on both side surfaces of the deformation frame; the fixed positioning plate is fixedly connected to the connecting column; the movable positioning plate is slidably connected to the connecting column, and a fixing member is provided on the connecting column to fix the position of the movable fixing plate through the fixing member.

[0012] The fixing member includes a first nut and a second nut, both the first nut and the second nut are threadedly connected to the connecting column; the movable positioning plate is located between the first nut and the second nut.

[0013] There are two connecting columns.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Through the cooperation between the lower pressing plate and the deformation frame, the flat iron is initially bent; the flat iron after initial bending is placed between the lower pressing block and the shaping block, and through the cooperation between the lower pressing block and the shaping block, the flat iron is finally bent. Through this structural arrangement, it can effectively ensure that the angles of all flat irons after final bending are consistent and reduce deviations. An extension sleeve is provided, which can effectively lengthen the force arm and achieve the purpose of saving effort.

[0016] The positioning component can position the placed flat iron to prevent the flat iron from being placed incorrectly. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of part A in

[0019] Figure 3 is a cross-sectional view of the deformation frame of the present utility model;

[0020] Figure 4 is a state diagram of the flat iron during initial bending of the present utility model;

[0021] Figure 5 is a state diagram of the flat iron during final bending of the present utility model;

[0022] Figure 6 is Figure 5 a partial enlarged view of part B in

[0023] Wherein: 1 is the base, 2 is the driving handle, 3 is the lower pressing plate, 4 is the deformation frame, 5 is the shaping block, 6 is the connecting ear, 7 is the limiting member, 8 is the lower pressing block, 9 is the convex rib, 10 is the pin hole, 11 is the extension sleeve, 12 is the positioning assembly, 13 is the connecting column, 14 is the fixed positioning plate, 15 is the movable positioning plate, 16 is the spring, 17 is the first nut, 18 is the second nut, and 19 is the flat iron. Detailed implementation mode

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] As Figures 1-6 shown, a flat iron bender includes a base 1 and a driving handle 2. One end of the driving handle 2 is hinged to the base 1; a lower pressing plate 3 is fixed on the driving handle 2; a deformation frame 4 is fixedly connected to the base 1, and the lower pressing plate 3 can extend into the deformation frame 4.

[0026] During the preliminary bending, the flat iron to be bent is placed on the deformation frame 4; then the other end of the driving handle 2 is pressed down, so that the lower pressing plate 3 contacts the flat iron, and finally a part of the flat iron is pressed into the deformation frame 4, thereby performing preliminary bending on the flat iron.

[0027] A shaping block 5 is fixed on the base 1. The shaping block 5 is rotatably connected to the base 1, and corresponding connecting ears 6 are provided on the base 1; a limiting member 7 is provided between the shaping block 5 and the connecting ear 6; a lower pressing block 8 is fixed on the driving handle 2, and the lower pressing block 8 contacts the shaping block 5.

[0028] During the final forming, the preliminarily bent flat iron is placed on the shaping block 5; the driving handle 2 is pressed down again, so that the lower pressing block 8 contacts the flat iron, and the flat iron is pushed to deform and fit the outer contour of the shaping block 5; thus, the final forming is completed.

[0029] Furthermore, a plurality of convex ribs 9 are provided on the shaping block 5, and the angles of each convex rib 9 are different; for example, 120°, 90°, etc. can be set. When a flat iron with a bending angle of 120° needs to be made; by rotating the shaping block 5, the 120° convex rib 9 on the shaping block 5 is opposite to the lower pressing block 8. Then the flat iron is preliminarily bent to less than 120° through the above steps; then the preliminarily bent flat iron is placed on the 120° convex rib 9 of the shaping block 5; finally, the driving handle 2 is pressed down to drive the lower pressing block 8 to press the preliminarily bent flat iron, so that it fits the 120° convex rib 9. That is, finally, a flat iron with a bending angle of 120° can be obtained.

[0030] When the angle of the initial bending of the flat iron is greater than 120°, there will be gaps on both sides of the lower end when it is placed on the 120° convex rib 9 of the shaping block 5; otherwise, it will fit. Therefore, when there are gaps on both sides of the lower end, it is necessary to re-perform the initial bending and increase the pressing amplitude of the driving handle 2.

[0031] Furthermore, the limiting member 7 is a limiting pin; the limiting pin is slidably connected to the connecting ear 6; the shaping block 5 is provided with a pin hole 10 connected to the limiting pin, and the number of pin holes 10 corresponds to the number of convex ribs 9. According to the angle to be bent, the corresponding convex rib 9 is rotated to face the pressing block 8; then the limiting pin is inserted into the pin hole 10.

[0032] Furthermore, for the purpose of saving effort, an extension sleeve 11 is connected to the other end of the driving handle 2, and the extension sleeve 11 is slidably connected to the driving handle 2; the extension sleeve 11 can be pulled as needed to achieve the effect of extending the force arm.

[0033] Furthermore, the deformation frame 4 is provided with a positioning assembly 12; the flat iron is positioned through the positioning assembly 12; to prevent the flat iron from being placed obliquely during the initial forming, resulting in defective products.

[0034] Furthermore, the positioning assembly 12 includes a connecting column 13, a fixed positioning plate 14 and a movable positioning plate 15; both the fixed positioning plate 14 and the movable positioning plate 15 are located inside the deformation frame 4; the connecting column 13 is slidably connected to the deformation frame 4; springs 16 are provided on both ends of the connecting column 13 and on both side surfaces of the deformation frame 4. The spring 16 is sleeved on the outer end of the connecting column 13, and both ends of the spring 16 abut against the side surface of the deformation frame 4 and the end of the connecting column 13 respectively.

[0035] The fixed positioning plate 14 is fixedly connected to the connecting column 13; the movable positioning plate 15 is slidably connected to the connecting column 13, and a fixing member is provided on the connecting column 13 to fix the position of the movable fixing plate through the fixing member.

[0036] During use, according to the width of different flat irons, the distance between the movable positioning plate 15 and the fixed positioning plate 14 is adjusted; this distance is slightly larger than the width of the flat iron to be bent. After adjusting the distance, the position of the movable fixing plate on the connecting column 13 is fixed through the fixing member, that is, the distance between the movable positioning plate 15 and the fixed positioning plate 14 can be fixed.

[0037] With the above structure, the flat iron is placed between the movable positioning plate 15 and the fixed positioning plate 14, which can prevent the flat iron from being placed obliquely. Moreover, it can ensure that during the downward pressing process of the lower pressing plate 3, the lower pressing plate 3 can drive the flat iron to move slightly along the connecting column 13, avoiding complete fixation and causing unnecessary friction between the lower pressing plate 3 and the flat iron. When small-amplitude movement occurs, elastic potential energy can be generated in the spring 16. When the driving handle 2 is lifted, the spring 16 releases the elastic potential energy to realize the reset of the movable positioning plate 15 and the fixed positioning plate 14.

[0038] Furthermore, the fixing member includes a first nut 17 and a second nut 18. Both the first nut 17 and the second nut 18 are threadedly connected to the connecting column 13. The movable positioning plate 15 is located between the first nut 17 and the second nut 18. During adjustment, the first nut 17 and the second nut 18 are rotated to increase the gap between the first nut 17 and the second nut 18. Then, the position of the movable positioning plate 15 is adjusted. After adjustment, the first nut 17 and the second nut 18 are rotated in the reverse direction to reduce the gap between the first nut 17 and the second nut 18, and the movable positioning plate 15 is clamped by the first nut 17 and the second nut 18 to fix its position.

[0039] Furthermore, preferably two connecting columns 13 are provided.

[0040] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A flat iron bender, characterized in that: The invention comprises a base (1) and a driving handle (2), one end of the driving handle (2) being hinged to the base (1); a lower pressing plate (3) being fixed to the driving handle (2); a deformation frame (4) being fixedly connected to the base (1), and the lower pressing plate (3) being able to extend into the deformation frame (4); a shaping block (5) being fixed to the base (1), the shaping block (5) being rotatably connected to the base (1), and a corresponding connecting ear (6) being provided on the base (1); a stopper (7) being provided between the shaping block (5) and the connecting ear (6); and a lower pressing block (8) being fixed to the driving handle (2), and the lower pressing block (8) being in contact with the shaping block (5).

2. A flat iron bender according to claim 1, characterized in that: A plurality of convex ridges (9) are provided on the shaping block (5), and each convex ridge (9) has a different angle.

3. A flat iron bender according to claim 1, characterized in that: The limiting member (7) adopts a limiting pin; the limiting pin is slidably connected to the connecting ear (6); a pin hole (10) connected to the limiting pin is provided on the shaping block (5); and at least two pin holes (10) are provided.

4. A flat iron bender according to claim 1, characterized in that: The other end of the driving handle (2) is connected to an extension sleeve (11), and the extension sleeve (11) is slidably connected to the driving handle (2).

5. The flat iron bender according to claim 1, characterized in that: A positioning component (12) is provided on the deformation frame (4); the flat iron is positioned by the positioning component (12).

6. A flat iron bender according to claim 5, characterized in that: The positioning assembly (12) comprises a connecting column (13), a fixed positioning plate (14) and a movable positioning plate (15); the fixed positioning plate (14) and the movable positioning plate (15) are both located in the deformation frame (4); the connecting column (13) is slidably connected to the deformation frame (4); springs (16) are provided at both ends of the connecting column (13) and at both sides of the deformation frame (4); the fixed positioning plate (14) is fixedly connected to the connecting column (13); the movable positioning plate (15) is slidably connected to the connecting column (13); a fixing piece is provided on the connecting column (13), and the position of the movable fixing plate is fixed by the fixing piece.

7. A flat iron bender according to claim 6, characterized in that: The fixing member comprises a first nut (17) and a second nut (18), wherein the first nut (17) and the second nut (18) are both threadedly connected to the connecting column (13); and the movable positioning plate (15) is located between the first nut (17) and the second nut (18).

8. A flat iron bender according to claim 6, characterized in that: There are two connecting columns (13).

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