A bending device

Abstract

This utility model provides a bending device, relating to the field of bending technology, including a tray and a rotating rod. A fixed pulley is provided at the middle position of the upper part of the tray. A first screw is rotatably provided at one end of the rotating rod. A screw hole is provided at the middle position of the top of the tray. The first screw passes through the fixed pulley and is fixed in the screw hole. A movable pulley is provided at one end of the bottom of the rotating rod. This utility model consists of a tray, a rotating rod, a fixed pulley, and a movable pulley. The rotating rod and the fixed pulley can be installed and connected simply through the first screw and the screw hole. The movable pulley can be installed and connected simply through the second screw and the screw tube. When making a ladder beam, a round steel bar is inserted between the fixed pulley and the movable pulley. One end of the round steel bar is stuck in the limiting groove of the limiting block. By turning the rotating rod, the round steel bar reaches a predetermined radius of curvature along the inner edge of the groove between the fixed pulley and the movable pulley. In summary, the structure is simple, the assembly is convenient, and it can handle temporary processing of ladder beams with high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bending technology, and in particular to a bending device. Background Technology

[0002] Ladder beams are a common support structure used in building construction and mining operations. They are mainly used to provide stable support platforms or passages to facilitate personnel movement or the transportation and installation of equipment and materials. In coal mines and other mining operations, ladder beams are widely used in coal roadway excavation to provide necessary support and passage conditions. With the development of technology, new products such as mine-grade steel ladder beams have also been gradually developed. These products improve the level of support and construction efficiency, and are of great significance for ensuring mine operation safety and achieving manpower reduction and efficiency improvement.

[0003] When manufacturing ladder beams (round steel bars), the end faces generally need to have a semi-circular curved surface. However, the initial ladder beam material is usually vertical, which requires bending. Existing bending machines are generally large, mainly because their design needs to meet various industrial processing requirements. They must be able to handle heavy metal plates, have a high-strength frame structure to withstand the enormous pressure generated during bending, and be equipped with a high-power hydraulic system or servo motor to drive the bending action. These factors together lead to an increase in the size and weight of the bending machine. Such large bending machines are difficult to transport to the mining site. Generally, the ladder beam material needs to be uniformly processed in a bending workshop, which is not suitable for the temporary processing needs of ladder beams in mines. How to perform convenient and fast bending processing is a problem that needs to be solved. Therefore, this utility model proposes a bending device to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a bending device. This bending device has a simple structure, is easy to assemble, can handle temporary processing of ladder beams, is highly efficient, and can be easily operated by simply turning a lever.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a bending device, including a tray and a rotating rod, a fixed pulley is provided at the middle position of the upper part of the tray, a first screw is rotatably provided at one end of the rotating rod, a screw hole is provided at the middle position of the top of the tray, the first screw passes through the fixed pulley and is fixed to the screw hole, a movable pulley is provided at one end of the bottom of the rotating rod, and a screw tube is movably provided at the middle position of the movable pulley, a support ring for supporting the movable pulley is provided at the lower end of the screw tube, a mounting hole is provided on the rotating rod, and a second screw is installed inside the mounting hole, the lower end of the second screw is threadedly adapted to the screw tube;

[0006] The top of the tray is provided with a limiting block at one end, and a limiting groove is provided at one end of the limiting block.

[0007] A further improvement is that a bearing ring is provided at the upper end of the outer side of the first screw, and the rotating rod is rotatably installed with the first screw through the bearing ring.

[0008] A further improvement is that a first knob is provided at the top of the first screw, and a first washer is provided between the bottom of the first knob and the bearing ring.

[0009] A further improvement is that a second knob is provided at the upper end of the second screw, and a second washer is provided between the bottom of the second knob and the rotating rod.

[0010] A further improvement is that the mounting holes are provided in multiple sets, and the multiple sets of mounting holes are equidistant.

[0011] A further improvement is that: one end of the rotating rod is provided with a reinforcing block, and the rotating rod and the reinforcing block are integrally formed; one end of the reinforcing block is connected to a handle, and one end of the handle is inserted and welded into the interior of the reinforcing block.

[0012] A further improvement is that the bottom of the tray is provided with a base, and the tray is welded and fixed to the base, and fixing holes are provided at the four corners inside the base.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model consists of a tray, a rotating rod, a fixed pulley, and a movable pulley. The rotating rod and the fixed pulley can be installed and connected simply through a first screw and a screw hole, while the movable pulley can be installed and connected simply through a second screw and a screw tube. When making the ladder beam, a round steel bar is inserted between the fixed pulley and the movable pulley, with one end of the round steel bar being secured in the limiting groove of the limiting block. By rotating the rotating rod, the round steel bar can reach a predetermined radius of curvature along the inner edge of the groove between the fixed pulley and the movable pulley. In summary, the structure is simple, the assembly is convenient, it can handle temporary processing of ladder beams, it is highly efficient, and it is easy to operate by simply rotating the rotating rod.

[0015] 2. This utility model has a wide range of applications because the first screw and screw hole fix the fixed pulley, which makes it easy to disassemble and replace fixed pulleys of different diameters. The second screw and screw tube installation structure makes it easy to install the movable pulley into different mounting holes and change the distance between it and the fixed pulley, thereby adapting to the processing of round steel of different diameters. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the fixed pulley installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the movable pulley of this utility model.

[0019] The components are: 1. tray; 2. rotating rod; 3. fixed pulley; 4. first screw; 5. screw hole; 6. movable pulley; 7. screw tube; 8. mounting hole; 9. second screw; 10. limit block; 11. bearing ring; 12. first knob; 13. second knob; 14. support ring; 15. handle; 16. base; 17. fixing hole. Detailed Implementation

[0020] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0021] Example 1

[0022] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a bending device, including a tray 1 and a rotating rod 2. A fixed pulley 3 is provided at the middle position of the upper part of the tray 1. A first screw 4 is rotatably provided at one end of the rotating rod 2. A screw hole 5 is provided at the middle position of the top of the tray 1. The first screw 4 passes through the fixed pulley 3 and is fixed to the screw hole 5. A movable pulley 6 is provided at one end of the bottom of the rotating rod 2. A screw tube 7 is movably provided at the middle position of the movable pulley 6. A support ring 14 supporting the movable pulley 6 is provided at the lower end of the screw tube 7. An installation hole 8 is provided on the rotating rod 2. A second screw 9 is installed inside the installation hole 8. The lower end of the second screw 9 is threadedly adapted to the screw tube 7.

[0023] One end of the top of the tray 1 is provided with a limiting block 10, and one end of the limiting block 10 is provided with a limiting groove. In use, it consists of the tray 1, the rotating rod 2, the fixed pulley 3 and the movable pulley 6. The rotating rod 2 and the fixed pulley 3 can be installed and connected by only the first screw 4 and the screw hole 5, and the movable pulley 6 can be installed and connected by only the second screw 9 and the screw tube 7. When making the ladder beam, the round steel is inserted between the fixed pulley 3 and the movable pulley 5, and one end of the round steel is stuck in the limiting groove of the limiting block 10. The rotating rod 2 is turned so that the round steel reaches the predetermined radius of curvature along the inner edge of the groove between the fixed pulley 3 and the movable pulley 5. In summary, the structure is simple, the assembly is convenient, it can handle the temporary processing of the ladder beam, the efficiency is high, and it is easy to operate by simply turning the rotating rod 2.

[0024] A bearing ring 11 is provided at the upper end of the outer side of the first screw 4, and the rotating rod 2 is rotatably mounted to the first screw 4 through the bearing ring 11. In use, the rotating rod 2 can be bent by rotating it. When rotating the rotating rod 2, the first screw 4 will not be affected due to the effect of the bearing ring 11.

[0025] The first screw 4 has a first knob 12 on its top, and a first washer is provided between the bottom of the first knob 12 and the bearing ring 11 for limiting the position. In use, rotating the first knob 12 drives the first screw 4 to rotate, and the rotating rod 2 and the fixed pulley 3 can be installed and connected simply through the first screw 4 and the screw hole 5.

[0026] The upper end of the second screw 9 is provided with a second knob 13, and a second washer is provided between the bottom of the second knob 13 and the rotating rod 2 for limiting the position. In use, rotating the second knob 13 drives the second screw 9 to rotate, and the movable pulley 6 can be installed and connected simply through the second screw 9 and the screw tube 7.

[0027] The mounting holes 8 are provided in multiple sets, and the multiple sets of mounting holes 8 are equidistantly arranged. Through the mounting structure of the second screw 9 and the screw tube 7, the movable pulley 6 can be easily installed on different mounting holes 8, changing the distance between it and the fixed pulley 3, thereby adapting to the processing of round steel of different diameters.

[0028] One end of the rotating rod 2 is provided with a reinforcing block, and the rotating rod 2 and the reinforcing block are integrally formed. One end of the reinforcing block is connected to a handle 15, and one end of the handle 15 is inserted and welded into the interior of the reinforcing block. The reinforcing block improves the connection strength between the handle 15 and the rotating rod 2.

[0029] Example 2

[0030] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a bending device, including a tray 1 and a rotating rod 2. A fixed pulley 3 is provided at the middle position of the upper part of the tray 1. A first screw 4 is rotatably provided at one end of the rotating rod 2. A screw hole 5 is provided at the middle position of the top of the tray 1. The first screw 4 passes through the fixed pulley 3 and is fixed to the screw hole 5. A movable pulley 6 is provided at one end of the bottom of the rotating rod 2. A screw tube 7 is movably provided at the middle position of the movable pulley 6. A support ring 14 supporting the movable pulley 6 is provided at the lower end of the screw tube 7. An installation hole 8 is provided on the rotating rod 2. A second screw 9 is installed inside the installation hole 8. The lower end of the second screw 9 is threadedly adapted to the screw tube 7.

[0031] One end of the top of the tray 1 is provided with a limiting block 10, and one end of the limiting block 10 is provided with a limiting groove. In use, it consists of the tray 1, the rotating rod 2, the fixed pulley 3 and the movable pulley 6. The rotating rod 2 and the fixed pulley 3 can be installed and connected by only the first screw 4 and the screw hole 5, and the movable pulley 6 can be installed and connected by only the second screw 9 and the screw tube 7. When making the ladder beam, the round steel is inserted between the fixed pulley 3 and the movable pulley 5, and one end of the round steel is stuck in the limiting groove of the limiting block 10. The rotating rod 2 is turned so that the round steel reaches the predetermined radius of curvature along the inner edge of the groove between the fixed pulley 3 and the movable pulley 5. In summary, the structure is simple, the assembly is convenient, it can handle the temporary processing of the ladder beam, the efficiency is high, and it is easy to operate by simply turning the rotating rod 2.

[0032] A bearing ring 11 is provided at the upper end of the outer side of the first screw 4, and the rotating rod 2 is rotatably mounted to the first screw 4 through the bearing ring 11. In use, the rotating rod 2 can be bent by rotating it. When rotating the rotating rod 2, the first screw 4 will not be affected due to the effect of the bearing ring 11.

[0033] The bottom of the tray 1 is provided with a base 16, and the tray 1 is welded and fixed to the base 16. The base 16 has fixing holes 17 at each of its four corners. In use, the base 16 is fixed to the mounting base surface by bolts through the fixing holes 17 at the four corners, thereby fixing the tray 1.

[0034] This bending device consists of a tray 1, a rotating rod 2, a fixed pulley 3, and a movable pulley 6. The rotating rod 2 and the fixed pulley 3 can be connected and installed using only a first screw 4 and a screw hole 5, while the movable pulley 6 can be connected and installed using only a second screw 9 and a threaded tube 7. When making the ladder beam, the round steel is inserted between the fixed pulley 3 and the movable pulley 5, with one end of the round steel being engaged in the limiting groove of the limiting block 10. By rotating the rotating rod 2, the round steel is made to reach a predetermined radius of curvature along the inner edge of the groove between the fixed pulley 3 and the movable pulley 5. In summary, the structure is simple, assembly is convenient, and it can handle temporary processing of ladder beams with high efficiency. Operation is easy, requiring only the rotation rod 2. Furthermore, since the first screw 4 and screw hole 5 fix the fixed pulley 3, it is easy to disassemble and replace fixed pulleys 3 of different diameters. The installation structure of the second screw 9 and threaded tube 7 allows the movable pulley 6 to be easily installed into different mounting holes 8, changing the distance between it and the fixed pulley 3, thus adapting to the processing of round steel of different diameters, making it widely applicable.

[0035] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bending device, comprising a tray (1) and a rotating rod (2), characterized in that: A fixed pulley (3) is provided at the middle position above the tray (1). A first screw (4) is rotatably provided at one end of the rotating rod (2). A screw hole (5) is provided at the middle position of the top of the tray (1). The first screw (4) passes through the fixed pulley (3) and is fixed to the screw hole (5). A movable pulley (6) is provided at one end of the bottom of the rotating rod (2). A screw tube (7) is movably provided at the middle position inside the movable pulley (6). A support ring (14) supporting the movable pulley (6) is provided at the lower end of the screw tube (7). An installation hole (8) is provided on the rotating rod (2). A second screw (9) is installed inside the installation hole (8). The lower end of the second screw (9) is threadedly matched with the screw tube (7). The tray (1) has a limiting block (10) at one end of its top, and a limiting groove at one end of the limiting block (10).

2. The bending device according to claim 1, characterized in that: The upper end of the outer side of the first screw (4) is provided with a bearing ring (11), and the rotating rod (2) is rotatably installed with the first screw (4) through the bearing ring (11).

3. A bending device according to claim 2, characterized in that: The first screw (4) has a first knob (12) at the top, and a first washer is provided between the bottom of the first knob (12) and the bearing ring (11).

4. A bending device according to claim 1, characterized in that: The upper end of the second screw (9) is provided with a second knob (13), and a second washer is provided between the bottom of the second knob (13) and the rotating rod (2).

5. A bending device according to claim 4, characterized in that: The mounting holes (8) are provided in multiple sets, and the multiple sets of mounting holes (8) are equidistant.

6. A bending device according to claim 1, characterized in that: One end of the rotating rod (2) is provided with a reinforcing block, and the rotating rod (2) and the reinforcing block are integrally formed. One end of the reinforcing block is connected to a handle (15), and one end of the handle (15) is inserted and welded into the interior of the reinforcing block.

7. A bending device according to claim 1, characterized in that: The bottom of the tray (1) is provided with a base (16), and the tray (1) is welded and fixed to the base (16). Fixing holes (17) are provided at the four corners inside the base (16).

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