Bending die

Abstract

The utility model discloses a bending die, which relates to the technical field of processing dies, and comprises an operation table, the top of the operation table is fixedly connected with a lower die, an upper die is arranged above the lower die, one end of the lower die is provided with a driving structure, and two sides in the lower die are rotatably connected with rotating shafts. After the steel plate is bent by using the upper die and the lower die, the steel plate is positioned in the lower die due to the friction force between the shaped steel plate and the lower die, and at the moment, the shaped steel plate is pulled upwards, and the two sides in the lower die are of the fillet structures, so that the sleeve can be driven by the shaped steel plate to slightly expand outwards; and meanwhile, after the shaped steel plate is taken out, the tension springs arranged at the two ends of the sleeve and the two ends of the lower die can drive the sleeve to reset, the steel plate can be better bent conveniently, the shaped steel plate can be taken out from the interior of the lower die easily, and the working efficiency of bending the steel plate can be improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of processing molds, in particular to a bending mold. Background Art

[0002] Bending die is a tool used by bending machines to form and process sheet materials. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the formed material. It is used to make the blank into a part with a specific shape and size under the pressure of the bending machine. The bending machine mold is divided into upper mold and lower mold of the bending machine, which are used for sheet metal stamping and separation. The mold used for forming has a cavity; the mold used for separation has a cutting edge.

[0003] Bending molds have the necessary benefits during use, such as optimizing the production process, reducing manual operation and waiting time, and improving production efficiency; reducing waste and rework, and reducing production costs; ensuring the accuracy and stability of product dimensions and improving product quality; adapting to product requirements of different specifications and shapes, and increasing production flexibility, etc., which brings many benefits to the development of the enterprise.

[0004] At present, when using a bending mold to process a steel plate into a "concave" structure, the lower mold is usually set to a "concave" structure, and then a steel plate is placed on the top of the lower mold, and then the upper mold is driven downward by a driving structure connection, so that the steel plate can be continuously processed into a "concave" structure, which is convenient for continuous bending of the steel plate.

[0005] However, after the steel plate is driven into the lower die for extrusion and forming by the upper die, it is necessary to take out the "concave" structure steel plate from the lower die. However, during the taking-out process, since the lower die fits the "concave" structure steel plate perfectly, the lower die needs to be opened before it can be taken out, which increases the operation process and affects the processing efficiency of the steel plate. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a bending mold to solve the technical problem that in the process of taking out the steel plate with a "concave" structure, since the lower mold fits the steel plate with a "concave" structure perfectly, it is necessary to open the lower mold before taking it out, thereby increasing the operation process and affecting the processing efficiency of the steel plate.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bending mold, including an operating table, a lower mold is fixedly connected to the top of the operating table, and an upper mold is arranged above the lower mold, a driving structure is arranged at one end of the lower mold, and a rotating shaft is rotatably connected to both sides of the lower mold, and a sleeve is rotatably connected to the rotating shaft, and the rotating shaft and the sleeve are connected by a coil spring, and fixed blocks are fixedly connected to both sides of the lower mold, and the fixed blocks and both ends of the rotating shaft are connected by tension springs, and the inner sides of the lower mold are chamfered structures.

[0008] By adopting the above technical scheme, the steel plate can be processed by the upper die and the lower die. At the same time, when the processed steel plate is taken out, the formed steel plate can be pulled upward. Since the two sides inside the lower die are chamfered structures, the sleeve can be pulled slightly to both sides. Moreover, since the sleeve rotates on the outer surface of the rotating shaft when the steel plate is processed, the coil spring will drive the sleeve to reset, reducing the friction between the sleeve and the formed steel plate, making it easier to take out the formed steel plate from the inside of the lower die.

[0009] The utility model is further configured that the top of the operating table is fixedly connected with a connecting piece, the bottom of the connecting piece is fixedly connected with one end of a hydraulic cylinder, and the other end of the hydraulic cylinder is fixedly connected to the top of the upper mold.

[0010] By adopting the above technical solution, it is beneficial to drive the upper die to repeatedly move up and down in the connecting piece through the hydraulic cylinder, so that the steel plate can be processed through the mutual fit between the upper die and the lower die.

[0011] The utility model is further configured as follows: the driving structure includes a group of connecting plates fixedly connected to the top of the operating table, a pair of rollers are rotatably connected inside the connecting plates, and a conveyor belt is provided on the outer surface of the rollers, one end of one of the rollers movably passes through the connecting plates on one side and extends to the outside where the output end of the motor is connected, and the motor is fixedly connected to one side of the connecting plate through a support plate.

[0012] By adopting the above technical solution, it is beneficial to drive one of the rotating shafts to rotate through the motor, so that the conveyor belt and the other rotating shaft rotate synchronously, which is convenient for transporting the steel plate. After the upper mold and the lower mold bend the steel plate, the rear steel plate can automatically fill in the position, which is convenient for continuous bending of the steel plate.

[0013] The utility model is further configured that one end of the lower mold is fixedly connected to one end of a group of guide blocks, the other end of the guide blocks is rotatably connected to the conveyor belt, and the guide blocks are flush with the top of the conveyor belt.

[0014] By adopting the above technical solution, one end of the guide block is fixedly connected to the two ends of the lower mold, and the other end is rotatably connected to the outer surface of the conveyor belt. This is conducive to driving multiple steel plates to move through the conveyor belt. The rear steel plate will push the front steel plate through the guide block to reach the top of the lower mold, thereby facilitating continuous processing of multiple steel plates.

[0015] The utility model is further configured that both ends of the fixed block and the rotating shaft are fixedly connected with a first fixed ring, and both ends of the tension spring are fixedly connected with a second fixed ring.

[0016] By adopting the above technical solution, through the arrangement of the first fixing ring and the second fixing ring, it is beneficial to connect the tension spring with the fixing block and the rotating shaft through the second fixing ring, so that when the formed steel plate is taken out from the lower mold, it can be slightly opened to both sides by the tension spring and can be reset, which is convenient for continuous bending of multiple steel plates.

[0017] The utility model is further configured such that the sizes of the upper die and the lower die match each other.

[0018] By adopting the above technical solution and setting the sizes of the upper die and the lower die to match each other, it is convenient to process the steel plate better through the movement between the upper die and the lower die.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] After the utility model uses the upper die and the lower die to bend the steel plate, the friction between the shaped steel plate and the lower die causes it to be located inside the lower die. At this time, by pulling the shaped steel plate upward, since the two sides inside the lower die are rounded structures, the shaped steel plate can be used to drive the sleeve to open slightly outward, so that the shaped steel plate can be taken out from the lower die. At the same time, after taking out the shaped steel plate, tension springs are arranged at both ends of the sleeve and the lower die to drive the sleeve to reset, which is convenient for better bending of the steel plate. This structure is conducive to taking out the shaped steel plate from the inside of the lower die, and is convenient for improving the working efficiency of bending the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 For this utility model Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0023] Figure 3 It is a three-dimensional structural cross-sectional view of the utility model;

[0024] Figure 4 This is a three-dimensional diagram of the lower mold structure of the utility model;

[0025] Figure 5 This is a detailed diagram of the lower mold structure of the utility model.

[0026] In the figure: 1. operating table; 2. connecting part; 3. hydraulic cylinder; 4. upper die; 5. lower die; 6. fixed block; 7. rotating shaft; 8. sleeve; 9. coil spring; 10. first fixed ring; 11. second fixed ring; 12. tension spring; 13. connecting plate; 14. roller; 15. conveyor belt; 16. motor; 17. support plate; 18. guide block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A bending die, such as Figure 1-5 As shown, it includes an operating table 1, a lower mold 5 is fixedly connected to the top of the operating table 1, and a connecting piece 2 is fixedly connected to the top of the operating table 1, one end of a hydraulic cylinder 3 is fixedly connected to the bottom of the connecting piece 2, and the other end of the hydraulic cylinder 3 is fixedly connected to the top of an upper mold 4, which is beneficial to repeatedly drive the upper mold 4 up and down by the hydraulic cylinder 3, thereby completing the processing of the steel plate. At the same time, the sizes of the upper mold 4 and the lower mold 5 are matched, which is convenient for better processing of the steel plate.

[0030] Then, a driving structure is provided at one end of the lower die 5, which is conducive to driving the steel plate to the top of the lower die 5 for processing through the driving structure. Rotating shafts 7 are provided on both sides of the lower die 5. The rotation of the rotating shaft 7 is connected with a sleeve 8, so that the sleeve 8 can rotate on the outer surface of the rotating shaft 7, and the rotating shaft 7 and the sleeve 8 are connected by a coil spring 9. When the steel plate is bent, the steel plate can be bent by the lower die 5. Therefore, the sleeve 8 is driven to rotate due to the pressure, which is conducive to reducing the friction between the steel plate and the lower die 5, and is convenient for better bending of the steel plate. When the coil spring 9 drives the sleeve 8 to reset, it can provide an upward movement for the steel plate after the bending is completed. The force is used to facilitate the removal of the bent steel plate from the lower die 5. Fixed blocks 6 are fixedly connected on both sides of the lower die 5. Both ends of the fixed blocks 6 and the rotating shaft 7 are connected by tension springs 12. The inner sides of the lower die 5 are chamfered structures. Therefore, when the bent steel plate is taken out, it can be pulled upward, thereby driving the sleeve 8 to move slightly to both sides through the chamfered structures on both sides of the lower die 5. This can reduce the friction between the bent steel plate and the lower die 5, which is convenient for better removal of the bent steel plate. After the bent steel plate is taken out, it is driven to reset by the tension spring 12, which is convenient for continuous bending of multiple steel plates.

[0031] A first fixing ring 10 is fixedly connected to both ends of the fixing block 6 and the rotating shaft 7, and a second fixing ring 11 is fixedly connected to both ends of the tension spring 12, which facilitates the connection between the fixing block 6 and the rotating shaft 7 through the first fixing ring 10 and the second fixing ring 11, so that the tension spring 12 can drive the rotating shaft 7 to reset after the sleeve 8 drives the rotating shaft 7 to move, thereby facilitating better subsequent use of the device.

[0032] The driving structure includes a group of connecting plates 13 fixedly connected to the top of the operating table 1, a pair of rollers 14 are rotatably connected in the connecting plates 13, and a conveyor belt 15 is arranged on the outer surface of the rollers 14, one end of one of the rollers 14 movably passes through the connecting plate 13 on one side and extends to the output end of the outer side connected to the motor 16, which is conducive to driving one of the rollers 14 to rotate by the motor 16, and then the other roller 14 and the conveyor belt 15 can be driven to rotate synchronously, and the motor 16 is fixedly connected to one side of the connecting plate 13 through the support plate 17, so the position of the motor 16 can be fixed by the support plate 17, and at the same time, the top of the conveyor belt 15 is flush with the top of the lower mold 5, which is conducive to the conveyor belt 15 to transport multiple steel plates to the top of the lower mold 5 in sequence, so that different steel plates can be continuously bent by the upper mold 4 and the lower mold 5.

[0033] Furthermore, one end of a group of guide blocks 18 is fixedly connected to one end of the lower mold 5, and the other end of the guide block 18 is rotatably connected to the conveyor belt 15, and the guide block 18 is flush with the top of the conveyor belt 15. This is beneficial when the conveyor belt 15 drives multiple steel plates to move, so that the rear steel plate will push the front steel plate through the guide block 18 in turn to reach the top of the lower mold 5, thereby facilitating better bending of the steel plates.

[0034] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A bending mold, comprising an operating table (1), a lower mold (5) is fixedly connected to the top of the operating table (1), and an upper mold (4) is arranged above the lower mold (5), characterized in that: A driving structure is provided at one end of the lower mold (5), and rotating shafts (7) are provided on both sides of the lower mold (5). The rotating shaft (7) is rotatably connected to a sleeve (8), and the rotating shaft (7) and the sleeve (8) are connected via a coil spring (9). Fixed blocks (6) are fixedly connected to both sides of the lower mold (5), and both ends of the fixed block (6) and the rotating shaft (7) are connected via tension springs (12). The inner sides of the lower mold (5) are rounded structures.

2. The bending die according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a connecting piece (2), the bottom of the connecting piece (2) is fixedly connected to one end of a hydraulic cylinder (3), and the other end of the hydraulic cylinder (3) is fixedly connected to the top of an upper mold (4).

3. The bending die according to claim 1, characterized in that: The driving structure comprises a group of connecting plates (13) fixedly connected to the top of the operating table (1), a pair of rollers (14) rotatably connected inside the connecting plates (13), and a conveyor belt (15) is provided on the outer surface of the rollers (14), the top of the conveyor belt (15) is flush with the top of the lower mold (5), one end of one of the rollers (14) movably passes through the connecting plate (13) on one side and extends to the output end connected to the outside with a motor (16), and the motor (16) is fixedly connected to one side of the connecting plate (13) through a support plate (17).

4. The bending die according to claim 1, characterized in that: One end of the lower mold (5) is fixedly connected to one end of a group of guide blocks (18), and the other end of the guide blocks (18) is rotatably connected to the conveyor belt (15), and the guide blocks (18) are flush with the top of the conveyor belt (15).

5. The bending die according to claim 1, characterized in that: Both ends of the fixed block (6) and the rotating shaft (7) are fixedly connected with a first fixed ring (10), and both ends of the tension spring (12) are fixedly connected with a second fixed ring (11).

6. The bending die according to claim 1, characterized in that: The sizes of the upper mold (4) and the lower mold (5) match each other.

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