Bending mechanism of bending machine
By designing a detachable bending head and bending seat connection, combined with a fan exhaust system, the problems of adaptability to different sheet metal sizes and debris removal in existing bending machines have been solved, improving the flexibility and working efficiency of the bending machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-03
AI Technical Summary
Existing bending machines are difficult to change and adjust as needed when bending sheet metal, especially since different sheet metals require different sized slots. Furthermore, during continuous bending, debris accumulates in the bending slots of the bending die, affecting the quality of the sheet metal.
A bending mechanism was designed, which uses a hydraulic cylinder to drive the detachable connection between the bending head and the bending seat, enabling quick replacement of the bending head and the bending seat. It is also equipped with a fan and exhaust pipe system to remove debris from the bending groove.
This technology enables the bending machine to flexibly adapt to different sheet metal size requirements and effectively collects debris, thereby improving the quality of sheet metal bending and the efficiency of continuous operation.
Smart Images

Figure CN223960359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending machine technology, and in particular to a bending mechanism for a bending machine. Background Technology
[0002] A bending machine is a type of forging and pressing machinery. It is a machine that can bend thin plates. Its main function is to perform sheet metal processing on plates, especially large plates. By selecting various molds, it can perform operations such as bending, stretching, rounding, and punching on plates. It is widely used in light industry, aviation, shipbuilding, metallurgy, instrumentation, electrical appliances, stainless steel products, steel structure construction and decoration and other industries.
[0003] Existing bending machines have limited flexibility in bending mechanisms, making it difficult to change or adjust them as needed, especially when different sheet materials require different sized slots. This results in certain limitations in the use of the equipment. In addition, during continuous bending operations, some sheet materials inevitably shed debris during bending. This debris accumulates in the bending slots of the bending die, which in turn affects the bending quality of the sheet material. Utility Model Content
[0004] The main objective of this invention is to provide a bending mechanism for a bending machine, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A bending mechanism for a bending machine includes a worktable. A mounting base is fixedly installed at the middle of the left end of the worktable, and a fan is fixedly installed at the upper end of the mounting base. A bending seat is fixedly installed through the middle of the upper end of the worktable. A first hydraulic cylinder is fixedly installed at the middle of the right end of the worktable. A mounting frame is fixedly installed at the rear of the upper end of the worktable. A controller is fixedly installed at the middle of the right end of the mounting frame. A second hydraulic cylinder is fixedly installed through the front of the upper end of the mounting frame.
[0007] Preferably, a fixing bracket is fixedly installed on the outer surface of the first hydraulic cylinder, and the fixing bracket is fixedly installed in the middle of the right end of the workbench. A locking block is fixedly installed at the output end of the first hydraulic cylinder. A bending groove is opened at the upper end of the bending seat, and a locking groove is opened at the lower right end of the bending seat. Before use, the controller is connected to the power supply, and the controller is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, and the exhaust fan. The bending head is pushed downward by the second hydraulic cylinder. When the bending head is lowered into the bending groove, the pressure plate is bent in the bending groove.
[0008] Preferably, a connecting seat is fixedly installed at the output end of the second hydraulic cylinder. A slot is formed at the lower end of the connecting seat, and a plug is inserted into the slot. A bending head is fixedly installed at the lower end of the plug, and the plug is secured in the slot with screws. By loosening the screws on the connecting seat, the plug and the bending head can be removed. Additionally, the first hydraulic cylinder drives a retaining block to be pulled out of a retaining groove on the bending seat, allowing the bending seat to be replaced as well. This allows the device to replace the bending head and bending seat as needed.
[0009] Preferably, an exhaust pipe is fixedly installed at the exhaust port of the blower. An installation cover is inserted into the upper end of the exhaust pipe, and a filter screen is fixedly installed at the lower end of the installation cover. An installation box is fixedly installed at the lower end of the exhaust pipe, and a receiving box is inserted into the front end of the installation box. Both the upper end of the installation box and the lower end of the exhaust pipe have discharge ports, which are vertically aligned. When the blower is started, suction is generated within the exhaust pipe, drawing in debris from the bending groove. The debris is then filtered through the filter screen and falls into the receiving box inside the installation box through the discharge ports, thus enabling debris collection.
[0010] Preferably, the card block and the card slot are the same size and their positions correspond left and right.
[0011] Preferably, the size of the filter screen is the same as the diameter of the exhaust pipe, and the mounting cover is fixed to the upper end of the exhaust pipe with screws.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. When bending sheet metal is required, first place the sheet metal on the bending seat. Then, push the bending head downwards using the second hydraulic cylinder. When the bending head moves down into the bending groove, the sheet metal is bent within the bending groove. When different sheet metals require different grooves, loosen the screws on the connecting seat. The insert block and bending head can then be removed. Additionally, the first hydraulic cylinder pulls the clamping block out of the clamping groove on the bending seat, allowing the bending seat to be replaced as well. This allows the device to replace the bending head and bending seat as needed.
[0014] 2. When the device continuously performs bending operations, some debris appears in the bending groove on the bending seat. By starting the fan, the exhaust pipe on the fan generates suction, which sucks the debris in the bending groove. At this time, the debris is filtered through the filter screen and falls into the receiving box in the installation box through the discharge port, thus collecting the debris. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the bending mechanism of a bending machine according to the present invention;
[0016] Figure 2 This is a schematic diagram of the overall structure of the No. 1 hydraulic cylinder and bending seat of the bending mechanism of a bending machine according to the present invention;
[0017] Figure 3 This is a schematic diagram of the overall structure of the No. 2 hydraulic cylinder of the bending mechanism of a bending machine according to the present invention.
[0018] Figure 4 This is a schematic diagram of the overall structure of the fan in the bending mechanism of a bending machine according to the present invention.
[0019] In the diagram: 1. Workbench; 2. Hydraulic cylinder No. 1; 3. Hydraulic cylinder No. 2; 4. Fan; 5. Mounting base; 6. Mounting bracket; 7. Controller; 8. Bending seat; 20. Fixing bracket; 21. Clamping block; 22. Bending groove; 23. Clamping groove; 30. Connecting seat; 31. Slot; 32. Insert block; 33. Bending head; 40. Exhaust pipe; 41. Mounting cover; 42. Filter screen; 43. Mounting box; 44. Discharge port; 45. Receiving box. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] like Figures 1-4As shown, a bending mechanism of a bending machine includes a worktable 1, a mounting base 5 fixedly installed at the middle of the left end of the worktable 1, a fan 4 fixedly installed at the upper end of the mounting base 5, a bending seat 8 fixedly installed through the middle of the upper end of the worktable 1, a first hydraulic cylinder 2 fixedly installed at the middle of the right end of the worktable 1, a mounting frame 6 fixedly installed at the rear of the upper end of the worktable 1, a controller 7 fixedly installed at the middle of the right end of the mounting frame 6, and a second hydraulic cylinder 3 fixedly installed through the front of the upper end of the mounting frame 6.
[0024] A fixing bracket 20 is fixedly installed on the outer surface of hydraulic cylinder 2. The fixing bracket 20 is fixedly installed in the middle of the right end of the workbench 1. A locking block 21 is fixedly installed at the output end of hydraulic cylinder 2. A bending groove 22 is opened at the upper end of bending seat 8, and a locking groove 23 is opened at the lower right end of bending seat 8. The locking block 21 and the locking groove 23 are the same size and their positions are corresponding left and right. Before use, the controller 7 is connected to the power supply. The controller 7 is electrically connected to hydraulic cylinder 2, hydraulic cylinder 3, and blower 4. The bending head 33 is pushed down by hydraulic cylinder 3. When the bending head 33 is pushed down into the bending groove 22, the pressing plate is bent in the bending groove 22.
[0025] A connecting seat 30 is fixedly installed at the output end of hydraulic cylinder 3. A slot 31 is opened at the lower end of the connecting seat 30, and a plug 32 is inserted into the slot 31. A bending head 33 is fixedly installed at the lower end of the plug 32, and the plug 32 is secured in the slot 31 with screws. By loosening the screws on the connecting seat 30, the plug 32 and the bending head 33 can be removed. Additionally, hydraulic cylinder 2 drives the locking block 21 to be pulled out of the locking groove 23 on the bending seat 8, allowing the bending seat 8 to be replaced. This allows the device to replace the bending head 33 and the bending seat 8 as needed.
[0026] A blower 4 has a fixed exhaust pipe 40 installed at its exhaust port. An installation cover 41 is inserted into the upper end of the exhaust pipe 40, and a filter screen 42 is fixedly installed at the lower end of the installation cover 41. An installation box 43 is fixedly installed at the lower end of the exhaust pipe 40, and a receiving box 45 is inserted into the front end of the installation box 43. Both the upper end of the installation box 43 and the lower end of the exhaust pipe 40 have discharge ports 44, with the two discharge ports 44 positioned vertically. The filter screen 42 has the same diameter as the exhaust pipe 40. The installation cover 41 is fixed to the upper end of the exhaust pipe 40 with screws. When the blower 4 is started, suction is generated in the exhaust pipe 40, drawing in debris from the bending groove 22. The debris is then filtered by the filter screen 42 and falls through the discharge ports 44 into the receiving box 45 inside the installation box 43, thus collecting the debris.
[0027] It should be noted that this utility model is a bending mechanism for a bending machine. First, the sheet metal is placed on the bending seat 8. At this time, the bending head 33 is pushed downward by the second hydraulic cylinder 3. When the bending head 33 moves downward into the bending groove 22, the sheet metal is bent in the bending groove 22. When different sheets metal need to be bent and different grooves are required, the screws on the connecting seat 30 are loosened. At this time, the insert block 32 and the bending head 33 can be removed. In addition, the first hydraulic cylinder 2 drives the locking block 21 to be pulled out of the locking groove on the bending seat 8. Within 23, the bending seat 8 can also be replaced, allowing the device to replace the bending head 33 and bending seat 8 as needed. When the device continuously performs bending operations, some debris appears in the bending groove 22 on the bending seat 8. By starting the fan 4, the exhaust pipe 40 on the fan 4 generates suction, thereby sucking in the debris in the bending groove 22. At this time, the debris is filtered through the filter screen 42 and falls into the receiving box 45 in the installation box 43 through the discharge port 44, thereby collecting the debris.
[0028] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bending mechanism for a bending machine, comprising a worktable (1), characterized in that: A mounting base (5) is fixedly installed at the middle of the left end of the workbench (1). A fan (4) is fixedly installed at the upper end of the mounting base (5). A bending seat (8) is fixedly installed through the middle of the upper end of the workbench (1). A hydraulic cylinder (2) is fixedly installed at the middle of the right end of the workbench (1). A mounting frame (6) is fixedly installed at the rear of the upper end of the workbench (1). A controller (7) is fixedly installed at the middle of the right end of the mounting frame (6). A hydraulic cylinder (3) is fixedly installed through the front of the upper end of the mounting frame (6).
2. The bending mechanism of a bending machine according to claim 1, characterized in that: A fixing bracket (20) is inserted and fixedly installed on the outer surface of the first hydraulic cylinder (2). The fixing bracket (20) is fixedly installed in the middle of the right end of the workbench (1). A locking block (21) is fixedly installed at the output end of the first hydraulic cylinder (2). A bending groove (22) is opened at the upper end of the bending seat (8). A locking groove (23) is opened at the lower right end of the bending seat (8).
3. The bending mechanism of a bending machine according to claim 1, characterized in that: The output end of the second hydraulic cylinder (3) is fixedly installed with a connecting seat (30). The lower end of the connecting seat (30) has a slot (31). A plug (32) is inserted into the slot (31). A bending head (33) is fixedly installed at the lower end of the plug (32). The plug (32) is fixed in the slot (31) by screws.
4. The bending mechanism of a bending machine according to claim 1, characterized in that: The exhaust port of the fan (4) is fixedly installed with an exhaust pipe (40). An installation cover (41) is inserted through the upper end of the exhaust pipe (40). A filter screen (42) is fixedly installed at the lower end of the installation cover (41). An installation box (43) is fixedly installed at the lower end of the exhaust pipe (40). A receiving box (45) is inserted through the front end of the installation box (43). A discharge port (44) is opened at the upper end of the installation box (43) and the lower end of the exhaust pipe (40). The two discharge ports (44) are vertically aligned.
5. The bending mechanism of a bending machine according to claim 2, characterized in that: The card block (21) and the card slot (23) are the same size and their positions are corresponding left and right.
6. The bending mechanism of a bending machine according to claim 4, characterized in that: The size of the filter screen (42) is the same as the diameter of the exhaust pipe (40), and the mounting cover (41) is fixed to the upper end of the exhaust pipe (40) by screws.