A bending device

Abstract

The present invention relates to a bending device, which is suitable for bending metal sheets and is arranged against a working platform. The bending device includes: a main body plate abutting against the working platform, a supporting mechanism arranged on the side wall of the main body plate, and the lower surface of the supporting mechanism is arranged against the working platform; a freely rotatable rotating shaft arranged at the bottom end of the main body plate; an extrusion plate and a brake handle fixed on the rotating shaft, the extrusion plate and the brake handle forming a certain angle, and when the brake handle is rotated, the extrusion plate causes the metal sheet to bend along the lower edge of the working platform.

Description

Technical Field

[0001] The present invention relates to the field of building construction, in particular to a bending device. Background Art

[0002] In the use of architectural metal sheets, multiple bending of the sheet metal, due to its excellent ductility, has become a common processing technique. Currently, single-bending equipment for metal sheets is widely used. However, due to factors such as unclear construction site conditions, difficulty in measuring specific dimensions, and difficulty in transporting the completed sheet metal, a secondary bend of the sheet metal, which has already been initially bent, is sometimes required based on the actual on-site conditions. A common practice is in roof cornice moldings, factory workbench protection, and outdoor bench top protection. This secondary bend often requires bending the sheet metal to the lower surface of the component to be wrapped. This is typically done manually by workers using tools such as wrenches. Limited by the workspace and position, workers are required to repeatedly bend and shift their center of gravity. Furthermore, some sheet metal sheets have sharp edges, which can be harmful to workers. Another method involves using a bending machine, but these machines are difficult to move and lack flexibility. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a handheld bending device, wherein a metal sheet is attached to a component to be protected, a supporting mechanism is placed against the upper surface of the working platform, and the brake handle is rotated. The brake handle will drive the extrusion sheet to rotate, and the extrusion sheet will bend the metal sheet to the lower surface of the component.

[0004] The technical solution to achieve the above purpose is a bending device suitable for bending metal sheets, which is placed against a working platform and includes:

[0005] The main plate is attached to the working platform.

[0006] A support mechanism is provided on the side wall of the main body plate, wherein the lower surface of the support mechanism abuts against the working platform;

[0007] A rotating shaft rotatably arranged at the bottom end of the main body plate;

[0008] An extrusion sheet and a brake handle are fixed on the rotating shaft. The extrusion sheet and the brake handle form a certain angle. When the brake handle is rotated, the extrusion sheet bends the metal sheet along the lower edge of the working platform.

[0009] Furthermore, the support mechanism further comprises: a support member and a support screw;

[0010] The support member is fixedly arranged on the side wall of the main body plate, and a drill hole is opened on the support member, and a thread is arranged in the drill hole;

[0011] The support screw is threadedly connected to the borehole.

[0012] Furthermore, a cross-shaped threaded cap is fixed to the top end of the support screw.

[0013] Furthermore, the support mechanism includes: a limiting block;

[0014] The side wall of the main body plate is provided with a limiting groove, and the limiting block is detachably inserted into the limiting groove;

[0015] A plurality of limiting grooves are provided along a direction perpendicular to the rotation axis.

[0016] Furthermore, the cross section of the limiting groove is a T-shaped structure, and the shape of the limiting block corresponds to the structural setting of the limiting groove.

[0017] Furthermore, a support handle is provided on the top of the main body plate.

[0018] Furthermore, it also includes: a limiting ring;

[0019] The limiting ring is fixedly arranged at the bottom end of the main body plate, and the rotating shaft is rotatably arranged in the limiting ring.

[0020] Furthermore, a plurality of limiting rings are provided.

[0021] Furthermore, the extrusion plate and the brake handle form a certain angle with respect to the rotation axis, and the brake handle has a certain length.

[0022] Furthermore, the brake handle is a U-shaped tube structure.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention is a handheld bending device, which is used to attach a metal sheet to a component that needs to be protected, place a supporting mechanism against the upper surface of the working platform, and rotate the brake handle. The brake handle will drive the extrusion sheet to rotate, and the extrusion sheet will bend the metal sheet to the lower surface of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front schematic diagram of the overall structure of a bending device of the present invention.

[0026] Figure 2 This is a schematic back view of the overall structure of a bending device of the present invention.

[0027] Figure 3 This is a schematic structural diagram of another embodiment of a bending device of the present invention.

[0028] Figure 4 This is a specific implementation effect diagram of another embodiment of a bending device of the present invention.

[0029] Legend: 1. Support handle; 2. Brake handle; 3. Main body plate; 4. Threaded cap; 5. Support member; 6. Support screw; 7. Support pad; 8. Limiting ring; 9. Extrusion plate; 10. Rotating shaft; 11. Limiting block; 12. Limiting groove; 111. Working platform. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] See Figure 1 and Figure 2 , a bending device suitable for bending metal sheets, which is placed against the working platform 111. The bending device includes: a main plate 3 abutting against the working platform 111, a supporting mechanism arranged on the side wall of the main plate 3, and the lower surface of the supporting mechanism is placed against the working platform 111; a freely rotatable rotating shaft 10 arranged at the bottom end of the main plate 3; an extrusion sheet 9 and a brake handle 2 fixed on the rotating shaft 10, the extrusion sheet 9 and the brake handle 2 form a certain angle, and when the brake handle 2 is rotated, the extrusion sheet 9 bends the metal sheet along the lower edge of the working platform 111.

[0032] In the present invention, a preferred embodiment is: the metal sheet is attached to the side wall of the working platform 111, the lower end of the support mechanism is attached to the upper surface of the working platform 111, the main plate 3 is attached to the metal sheet, and the brake handle 2 is rotated. The brake handle 2 will drive the rotating shaft 10 to rotate, and the extrusion sheet 9 will be fixed and rotate with the rotation of the rotating shaft 10. During the rotation of the extrusion sheet 9, the extrusion sheet 9 will cause the metal sheet to rotate along the lower edge of the working platform 111 until it is attached to the lower surface of the component, completing the bending of the metal sheet.

[0033] Furthermore, the support mechanism also includes: a support member 5 and a support screw 6; the support member 5 is fixedly arranged on the side wall of the main plate 3, a drill hole is opened on the support member 5, and a thread is arranged in the drill hole; the support screw 6 is threadedly connected to the drill hole.

[0034] In the present invention, a preferred embodiment is that the support screw 6 is positioned against the work platform 111. Preferably, a support pad 7 is provided on the lower surface of the support screw 6. The support pad 7 is made of a wear-resistant material such as rubber with a high coefficient of friction. Under the action of pressure, it increases friction and prevents slippage during bending. In actual use, the distance between the support screw 6 and the extrusion sheet 9 can also be adjusted according to the actual thickness of the work platform 111.

[0035] Furthermore, a cross-shaped threaded cap is fixed to the top of the support screw 6. Preferably, when the staff needs to adjust the distance between the support screw 6 and the extrusion plate 9, they only need to use a cross screwdriver to adjust the cross-shaped threaded cap 4 at the top of the support screw 6, so that debugging can be conveniently carried out.

[0036] The plurality of support screws 6 can better support the metal sheet to prevent it from slipping during the bending process. In the present invention, a preferred embodiment is that two support screws 6 are provided and are arranged corresponding to the center line of the main body plate 3.

[0037] Furthermore, the support mechanism includes: a limit block 11; a limit groove 12 is provided on the side wall of the main plate 3, and the limit block 11 is detachably inserted into the limit groove 12; and a plurality of limit grooves 12 are provided in a direction perpendicular to the rotation axis 10.

[0038] For further information, see Figure 3 In the present invention, another embodiment is also provided: by inserting the limit block 11 into the limit groove 12, and by using the lower end of the limit groove 12 to abut against the lower end of the working platform 111 to limit the main body plate 3, preferably, the lower surface of the limit block 11 is provided with anti-slip grooves, and the anti-slip grooves can prevent the limit block 11 from slipping. In order to match the grooves of different working platforms 111, a plurality of limit grooves 12 are provided on the main body plate 3, and the limit block 11 is fixed by being placed in different limit grooves 12.

[0039] Furthermore, the cross section of the limiting groove 12 is a T-shaped structure, and the shape of the limiting block 11 corresponds to the structural arrangement of the limiting groove 12. Preferably, the T-shaped structure can better fix the limiting block 11.

[0040] In actual use, since the second implementation method requires more accessories to be carried during actual use, it is simpler to use the first implementation method.

[0041] Furthermore, a support handle 1 is provided at the top of the main body plate 3. The support handle 1 can be used to conveniently carry the present invention.

[0042] Furthermore, the main body plate 3 further comprises a limiting ring 8, which is fixedly mounted on the bottom end of the main body plate 3, and the rotating shaft 10 is rotatably mounted in the limiting ring 8. The outer diameter of the rotating shaft 10 is slightly smaller than the inner diameter of the limiting ring 8, ensuring that the rotating shaft 10 does not bend smoothly due to being too tight during rotation.

[0043] Furthermore, the limiting rings 8 are provided in plurality. The plurality of limiting rings 8 prevent the rotating shaft 10 from falling off. The limiting rings 8 can be appropriately adjusted according to the length of the main plate 3. In the present invention, a preferred embodiment is to provide three limiting rings 8, and the rotating shaft 10 is inserted into the three limiting rings 8.

[0044] Furthermore, the extrusion plate 9 and the brake handle 2 form a certain angle with respect to the rotation axis 10, and the brake handle 2 has a certain length. A lever structure is formed between the extrusion plate 9 and the brake handle 2. The longer the brake handle 2 is, the less effort is required for the operator to use it. In the present invention, a preferred embodiment is that the length of the brake handle 2 is the same as the length of the main plate 3.

[0045] Furthermore, the brake handle 2 is a U-shaped tube structure. This U-shaped tube structure is convenient for the user to grasp and provides a strong force point. The curved end of the U-shaped tube has a large cross-sectional moment of inertia, which increases the overall resistance to friction loss. In the present invention, a preferred embodiment is that the cross-section of the curved end of the brake handle 2 is circular.

[0046] The following describes the use of a bending device according to the present invention.

[0047] The metal sheet is attached to the side wall of the working platform 111, the lower end of the supporting mechanism is attached to the upper surface of the working platform 111, the main plate 3 is attached to the metal sheet, and the brake handle 2 is rotated. The brake handle 2 will drive the rotating shaft 10 to rotate, and the extrusion sheet 9 will be fixed and rotate with the rotation of the rotating shaft 10. During the rotation of the extrusion sheet 9, the extrusion sheet 9 will cause the metal sheet to rotate along the lower edge of the working platform 111 until it is attached to the lower surface of the component, completing the bending of the metal sheet.

[0048] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A bending device suitable for bending metal sheets, arranged against a working platform, characterized by: The bending device comprises: The main plate is attached to the working platform. A support mechanism is provided on the side wall of the main body plate, wherein the lower surface of the support mechanism abuts against the working platform; A rotating shaft rotatably arranged at the bottom end of the main body plate; An extrusion sheet and a brake handle are fixed on the rotating shaft, wherein the extrusion sheet and the brake handle form a certain angle, and when the brake handle is rotated, the extrusion sheet causes the metal sheet to bend along the lower edge of the working platform; The support mechanism may include: a support member and a support screw; The support member is fixedly arranged on the side wall of the main body plate, and a drill hole is opened on the support member, and a thread is arranged in the drill hole; The support screw is threadedly connected to the borehole; The supporting mechanism may include: a limiting block; The side wall of the main body plate is provided with a limiting groove, and the limiting block is detachably inserted into the limiting groove; A plurality of limiting grooves are provided along a direction perpendicular to the rotation axis.

2. A bending device according to claim 1, characterized in that: A cross-shaped threaded cap is fixed on the top end of the support screw.

3. The bending device according to claim 1, characterized in that: The cross section of the limiting groove is a T-shaped structure, and the shape of the limiting block corresponds to the structural setting of the limiting groove.

4. The bending device according to claim 1, wherein: A support handle is provided on the top of the main body plate.

5. The bending device according to claim 1, wherein: Also includes: Limiting ring; The limiting ring is fixedly arranged at the bottom end of the main body plate, and the rotating shaft is rotatably arranged in the limiting ring.

6. The bending device according to claim 5, characterized in that: A plurality of limiting rings are provided.

7. The bending device according to claim 1, characterized in that: The brake handle is a U-shaped tube structure.

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