A bending mechanism for a press die

Abstract

The application discloses a bending mechanism for producing a stamping die and relates to the technical field of bending equipment. The bending mechanism comprises a base, a stamping mechanism fixedly connected to the top of the base and a driving mechanism fixedly installed in the base. The stamping mechanism comprises a die seat two fixedly connected to the top of the base, a die seat one fixedly installed at the top of the die seat two, four guide columns movably sleeved at four corners of the die seat one and driven by the driving mechanism, an installation plate fixedly connected to the top of the four guide columns, an upper die fixedly installed at the bottom of the installation plate, a blanking assembly connected to the upper die and two lower dies symmetrically movably connected to the inner side of the die seat one. The two pinch rollers are intermittently driven to pinch the raw material through the cooperation between the incomplete gear and the gear one, the raw material of a fixed length is cut through the downward movement of the gear two, the raw material is conveniently bent, and the continuous production of the raw material bending is realized.

Description

Technical Field

[0001] This invention belongs to the field of bending equipment technology, and in particular relates to a bending mechanism for producing stamping dies. Background Technology

[0002] Bending—Under the pressure of the upper or lower die of a bending machine, metal sheet first undergoes elastic deformation, and then enters plastic deformation. In the initial stage of plastic bending, the sheet is freely bent. As the upper or lower die applies pressure to the sheet, it is commonly known as bending. Traditional bending equipment often cannot quickly bend the raw material, and at the same time, it cannot effectively adjust the bending size of the raw material.

[0003] Chinese patent document CN109332452B discloses a bending device for producing stamping dies, including a fastening upper frame, a mounting lower frame connected to the lower end of the fastening upper frame, a stamping lifting frame connected between the fastening upper frame and the mounting lower frame, a stamping power assembly mounted on the stamping lifting frame, stamping part-removing devices for gripping the bent product on both sides of the stamping power assembly, and a stamping seat mounted directly below the stamping power assembly. This invention utilizes a moving component below the stamping seat in conjunction with a corresponding position sensor to ensure the bending seat accurately moves directly below the stamping power assembly, ensuring bending accuracy. Furthermore, the use of a suction cup negative pressure removal method ensures the integrity of the bent product while removing it, avoiding secondary damage and reducing the bending quality. Additionally, a condenser is installed inside the stamping seat to help the workpiece cool down quickly, making it easier to remove after cooling.

[0004] The existing technology has the following problems:

[0005] In the existing technology, the bending mechanism used in the production of stamping dies has the problem of inconvenience in unloading the bent material during the bending process, which affects the bending efficiency of the material. Summary of the Invention

[0006] The purpose of this invention is to provide a bending mechanism for producing stamping dies, so as to solve the problem of inconvenience in unloading the bent raw materials.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] This invention relates to a bending mechanism for producing stamping dies, comprising a base, a stamping mechanism fixedly connected to the top of the base, and a drive mechanism fixedly installed inside the base. The stamping mechanism includes a die base two fixedly connected to the top of the base, a die base one fixedly installed on the top of the die base two, guide pillars movably sleeved at the four corners and driven by the drive mechanism, the tops of the four guide pillars being fixedly connected to a mounting plate, an upper die fixedly installed at the bottom of the mounting plate, the upper die being connected to a feeding assembly, and two symmetrically placed lower dies movably connected to the inner side of the die base one. By moving the guide pillars up and down and utilizing the cooperation between the upper die and the two lower dies, the raw material is bent.

[0009] The feeding assembly includes two slides on both sides of the upper mold. Each slide is slidably connected to a push plate, and each push plate is fixedly connected to a push rod at its end. By pushing and pulling the push rod, the push plate moves on the slide, thereby feeding the material that is bent and stuck on the upper mold.

[0010] As a preferred embodiment of the present invention, the base is fixedly connected to an arc-shaped plate, and the other end of the push rod is rotatably connected to a roller that is slidably connected to the arc-shaped plate. By moving the upper mold up and down, the push rod is pushed and pulled by the cooperation between the arc-shaped plate and the roller.

[0011] As a preferred embodiment of the present invention, a feeding assembly is fixedly connected to one side of the mounting plate. The feeding assembly includes a blade fixedly connected to the mounting plate. A groove for cooperating with the blade is provided on one side of the mold base. By moving the mounting plate up and down and utilizing the cooperation between the blade and the groove, the raw material is cut.

[0012] As a preferred embodiment of the present invention, a limiting plate and a pressure plate are fixedly installed on the top of the mold base, and the limiting plate and the pressure plate are placed symmetrically to limit the length of the bending material so as to cut the material to a fixed length.

[0013] As a preferred embodiment of the present invention, a guide plate is fixedly connected to one side of the mold base, and two clamping rollers are rotatably connected to the guide plate. Gears are fixedly connected to the ends of the two clamping rollers, and the two gears mesh with each other. One of the gears is connected to the drive mechanism for transmission. By synchronously rotating the two clamping rollers in opposite directions, the raw material inside the guide plate is clamped and fed to achieve the feeding of the raw material.

[0014] As a preferred embodiment of the present invention, the driving mechanism includes a motor fixedly mounted on the base, an arc-shaped groove plate fixedly connected to the bottom of the guide post, and a crankshaft movably connected to the output end of the motor. The axial movement of the guide post is achieved by sliding the crankshaft in the inner cavity of the arc-shaped groove plate.

[0015] As a preferred embodiment of the present invention, an incomplete gear is fixedly connected to the end of the crankshaft and rotatably connected to the base. A gear one meshes with the outer side of the incomplete gear. A pulley one is fixedly connected to the gear one. A pulley two is fixedly connected to one of the gears. A belt is connected to the outer walls of the pulley one and the pulley two for transmission. Intermittent transmission of the pinch roller is achieved through the cooperation between the incomplete gear and the gear one.

[0016] As a preferred embodiment of the present invention, two rollers are rotatably connected to the top of the inner side of the mold base to reduce the friction between the raw material and the inner side of the mold base during bending.

[0017] As a preferred embodiment of the present invention, a feeding guide is fixedly installed on one side of the upper mold, and a material collection hopper located directly below the feeding guide is fixedly connected to one side of the base for guiding the raw material falling after bending.

[0018] As a preferred embodiment of the present invention, the mounting plate is provided with a mounting groove that is slidably connected to the upper mold, and a mounting strip for fixing the upper mold is inserted into one side of the mounting groove, so as to facilitate the replacement of the upper mold.

[0019] The present invention has the following beneficial effects:

[0020] 1. This invention utilizes the sliding of rollers on an arc-shaped plate and the up-and-down movement of the upper mold to achieve the sliding of the push plate on the slide groove, thereby enabling the unloading of raw materials that have been bent at the bottom of the upper mold.

[0021] 2. This invention uses the cooperation between an incomplete gear and gear one to drive two pinch rollers to intermittently pinch the raw material, and uses the downward movement of gear two to cut the raw material of a fixed length, which facilitates the bending of the raw material and realizes continuous production of bending raw material.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the cross-sectional planar structure of the present invention. Figure 1 ;

[0026] Figure 3 This is a cross-sectional view of the present invention. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the cross-sectional planar structure of the present invention. Figure 2 ;

[0028] Figure 5 This is a cross-sectional view of the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the transmission structure of the drive mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the drive mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the feeding planar structure of the raw materials of the present invention;

[0032] Figure 9 This is a schematic diagram of the raw material feeding structure of the present invention;

[0033] Figure 10 This is a schematic diagram of the blanking structure after the raw material is bent according to the present invention;

[0034] Figure 11 This is a schematic diagram of the feeding assembly of the present invention.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Base; 2. Drive mechanism; 21. Motor; 22. Crankshaft; 23. Arc-shaped groove plate; 24. Incomplete gear; 25. Gear 1; 26. Pulley 1; 27. Belt; 28. Pulley 2; 3. Feeding assembly; 31. Guide plate; 32. Pinch roller; 33. Pressure plate; 34. Limiting plate; 35. Blade; 36. Knife groove; 37. Gear 2; 4. Unloading assembly; 41. Arc-shaped plate; 42. Slide groove; 43. Push plate; 44. Push rod; 45. Roller; 5. Stamping mechanism; 51. Die base 1; 52. Lower die; 53. Die base 2; 54. Roller shaft; 55. Guide post; 56. Upper die; 57. Mounting plate; 6. Unloading guide frame; 7. Collection hopper. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0039] Please see Figures 1-6 and Figures 8-10 As shown, this invention is a bending mechanism for producing stamping dies, including a base 1. A stamping mechanism 5 is fixedly connected to the top of the base 1, and a drive mechanism 2 is fixedly installed inside the base 1. The stamping mechanism 5 includes a die base 2 53 fixedly connected to the top of the base 1. A die base 1 51 is fixedly installed on the top of the die base 2 53. Guide pillars 55, which are driven by the drive mechanism 2, are movably sleeved at the four corners. A mounting plate 57 is fixedly connected to the top of the four guide pillars 55. An upper die 56 is fixedly installed on the bottom of the mounting plate 57. A blanking assembly 4 is provided on the inner side of the upper die 56. Two symmetrically placed lower dies 52 are movably connected to the inner side of the die base 1 51. Specifically, springs are fixedly connected at the connection points between the two lower dies 52 and the die base 1 51 to reset the two lower dies 52. (See the attached instruction manual for details.) Figure 8 By moving the guide post 55 up and down and using the cooperation between the upper mold 56 and the two lower molds 52, the raw material is bent. The mounting plate 57 has a mounting groove that is slidably connected to the upper mold 56. A mounting strip for fixing the upper mold 56 is inserted into one side of the mounting groove, which makes it convenient to replace the upper mold 56.

[0040] Two rollers 54 are rotatably connected to the top of the inner side of the die holder 51 to reduce the friction between the raw material and the inner side of the die holder 51 during bending.

[0041] By moving the guide post 55 up and down, the height of the upper mold 56 can be adjusted so that the upper mold 56 and the two lower molds 52 can bend the raw material. The bent raw material will be wrapped around the bottom of the upper mold 56.

[0042] Please see Figures 1-5 and Figure 10As shown, the unloading assembly 4 includes two slides 42 on both sides of the upper mold 56. Each slide 42 is slidably connected to a push plate 43. The ends of each push plate 43 are fixedly connected to push rods 44 that are slidably connected to the slides 42. By pushing and pulling the push rods 44, the push plate 43 moves on the slide 42, thereby unloading the raw material that is bent and stuck on the upper mold 56.

[0043] The base 1 is fixedly connected to an arc plate 41, and the other end of the push rod 44 is rotatably connected to a roller 45 that is slidably connected to the arc plate 41. By moving the upper mold 56 up and down, the push rod 44 is pushed and pulled by the cooperation between the arc plate 41 and the roller 45.

[0044] A feeding guide 6 is fixedly installed on one side of the upper mold 56, and a collecting hopper 7 located directly below the feeding guide 6 is fixedly connected to one side of the base 1, which is used to guide the raw material falling after bending.

[0045] By moving the upper mold 56 downward and using the roller 45 to slide on the arc plate 41, the push plate 43 moves under the guidance of the push rod 44 and the slide groove 42, thus moving the push plate 43 to the rear side, making it easier for the upper mold 56 to bend the raw material. Before the bottom of the upper mold 56 contacts the raw material to be bent, the push plate 43 moves to the rearmost side to avoid affecting the bending of the raw material by the upper mold 56. By moving the upper mold 56 upward and using the roller 45 to slide on the arc plate 41, the push plate 43 moves under the guidance of the push rod 44 and the slide groove 42, thus moving the push plate 43 to the front side, unloading the raw material wrapped around the bottom of the upper mold 56 and bending it. The bent raw material falls along the unloading guide 6 onto the collecting hopper 7, where it falls onto the collection box or conveying mechanism at the bottom of the collecting hopper 7, so that it can enter the next process.

[0046] Please see Figures 1-4 , Figures 6-9 and Figure 11 As shown, a feeding assembly 3 is fixedly connected to one side of the mounting plate 57. The feeding assembly 3 includes a blade 35 fixedly connected to the mounting plate 57. A groove 36 that cooperates with the blade 35 is opened on one side of the mold base 51. By moving the mounting plate 57 up and down and by utilizing the cooperation between the blade 35 and the groove 36, the raw material is cut.

[0047] A limiting plate 34 and a pressure plate 33 are fixedly installed on the top of the mold base 51, and the limiting plate 34 and the pressure plate 33 are placed symmetrically to limit the length of the bending material and realize the fixed-length cutting of the material.

[0048] A guide plate 31 is fixedly connected to one side of the mold base 51. Two clamping rollers 32 are rotatably connected to the guide plate 31. Gears 37 are fixedly connected to the ends of the two clamping rollers 32, and the two gears 37 mesh with each other. One of the gears 37 is connected to the drive mechanism 2. By synchronously rotating the two clamping rollers 32 in opposite directions, the raw material inside the guide plate 31 is clamped and fed to achieve the feeding of the raw material.

[0049] The material is clamped between the two clamping rollers 32 by the synchronous reverse rotation of the two clamping rollers 32. The clamped material is guided and its length is limited by the limiting plate 34 and the pressure plate 33. The material is cut by the downward movement of the gear 2 37 and the cutting groove 36 so as to bend the material. Specifically, the bottom of the gear 2 37 is lower than the bottom of the upper mold 56 so as to cut the material before bending it.

[0050] Please see Figures 1-7 As shown, the drive mechanism 2 includes a motor 21 fixedly installed on the base 1, an arc-shaped groove plate 23 fixedly connected to the bottom of the guide post 55, and a crankshaft 22 movably connected to the output end of the motor 21. The axial movement of the guide post 55 is achieved by sliding the crankshaft 22 in the inner cavity of the arc-shaped groove plate 23. The height of the arc-shaped groove plate 23 is adjusted by the rotation of the crankshaft 22 driven by the motor 21 and by the sliding of the crankshaft 22 on the arc-shaped groove plate 23, so that the upper mold 56 will pause for a certain period of time when it moves to a high position, which is convenient for feeding raw materials.

[0051] An incomplete gear 24, which is rotatably connected to the base 1, is fixedly connected to the end of the crankshaft 22. A gear 25 meshes with the outer side of the incomplete gear 24. A pulley 26 is fixedly connected to the gear 25. A pulley 28 is fixedly connected to one of the gears 37. The outer walls of the pulleys 26 and 28 are connected to a belt 27 for transmission. Through the cooperation between the incomplete gear 24 and the gear 25, the intermittent transmission of the pinch roller 32 is realized. Specifically, the cooperation between the incomplete gear 24 and the gear 25 is used to make the two pinch rollers 32 rotate intermittently, so as to avoid the upper mold 56 continuing to pinch the raw material before bending it.

[0052] After the upper mold 56 moves out from the inside of the mold base 51, the two clamping rollers 32 clamp the raw material. When the upper mold 56 moves down, the two clamping rollers 32 will stop rotating, thereby pausing the clamping of the raw material and ensuring that the end of the raw material is in contact with the limiting plate 34. The raw material can then be cut using the gear 37, and then the upper mold 56 can be used to bend the raw material, thus realizing continuous bending processing of the raw material.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bending mechanism for producing stamping dies, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a stamping mechanism (5), and a drive mechanism (2) is fixedly installed inside. The stamping mechanism (5) includes a second mold base (53) fixedly connected to the top of the base (1). The top of the second mold base (53) is fixedly installed with a first mold base (51). The four corners are movably sleeved with guide pillars (55) that are driven by the drive mechanism (2). The tops of the four guide pillars (55) are fixedly connected to an mounting plate (57). The bottom of the mounting plate (57) is fixedly installed with an upper mold (56). The upper mold (56) is connected to a feeding assembly (4). The inner side of the first mold base (51) is movably connected with two symmetrically placed lower molds (52). By moving the guide pillars (55) up and down and by utilizing the cooperation between the upper mold (56) and the two lower molds (52), the bending of the raw material is achieved. The feeding assembly (4) includes two slides (42) on both sides of the upper mold (56). Each slide (42) is slidably connected to a push plate (43). Each end of the push plate (43) is fixedly connected to a push rod (44). By pushing and pulling the push rod (44), the push plate (43) moves on the slide (42) to feed the material stuck on the upper mold (56) after bending.

2. The bending mechanism for producing stamping dies according to claim 1, characterized in that, The base (1) is fixedly connected to an arc plate (41), and the other end of the push rod (44) is rotatably connected to a roller (45) that is slidably connected to the arc plate (41). By moving the upper mold (56) up and down, the push rod (44) is pushed and pulled by the cooperation between the arc plate (41) and the roller (45).

3. The bending mechanism for producing stamping dies according to claim 1, characterized in that, A feeding assembly (3) is fixedly connected to one side of the mounting plate (57). The feeding assembly (3) includes a blade (35) fixedly connected to the mounting plate (57). A groove (36) that cooperates with the blade (35) is opened on one side of the mold base (51). By moving the mounting plate (57) up and down and by utilizing the cooperation between the blade (35) and the groove (36), the raw material is cut.

4. A bending mechanism for producing stamping dies according to claim 3, characterized in that, The top of the mold base (51) is fixedly installed with a limiting plate (34) and a pressure plate (33), and the limiting plate (34) and the pressure plate (33) are placed symmetrically to limit the length of the bending material and realize the fixed-length cutting of the material.

5. A bending mechanism for producing stamping dies according to claim 4, characterized in that, A guide plate (31) is fixedly connected to one side of the mold base (51). The guide plate (31) is rotatably connected to two clamping rollers (32). The ends of the two clamping rollers (32) are fixedly connected to gears (37), and the two gears (37) mesh with each other. One of the gears (37) is connected to the drive mechanism (2) for transmission. By synchronously rotating the two clamping rollers (32) in opposite directions, the raw material inside the guide plate (31) is clamped and fed to achieve the feeding of the raw material.

6. A bending mechanism for producing stamping dies according to claim 5, characterized in that, The drive mechanism (2) includes a motor (21) fixedly installed on the base (1), an arc-shaped groove plate (23) fixedly connected to the bottom of the guide post (55), and a crankshaft (22) movably connected to the output end of the motor (21) and the arc-shaped groove plate (23). The axial movement of the guide post (55) is realized by the sliding of the crankshaft (22) in the inner cavity of the arc-shaped groove plate (23).

7. A bending mechanism for producing stamping dies according to claim 6, characterized in that, The crankshaft (22) is fixedly connected to an incomplete gear (24) that is rotatably connected to the base (1). Gear 1 (25) meshes with the outer side of the incomplete gear (24). Gear 1 (25) is fixedly connected to pulley 1 (26). One of the gears 2 (37) is fixedly connected to pulley 2 (28). The outer walls of pulley 1 (26) and pulley 2 (28) are connected to a belt (27) for transmission. Through the cooperation between the incomplete gear (24) and gear 1 (25), the intermittent transmission of the pinch roller (32) is realized.

8. A bending mechanism for producing stamping dies according to claim 1, characterized in that, Two rollers (54) are rotatably connected to the top of the inner side of the mold base (51) to reduce the friction between the raw material and the inner side of the mold base (51) during bending.

9. A bending mechanism for producing stamping dies according to claim 1, characterized in that, A feeding guide (6) is fixedly installed on one side of the upper mold (56), and a material collection hopper (7) located directly below the feeding guide (6) is fixedly connected to one side of the base (1) for guiding the raw material that falls after bending.

10. A bending mechanism for producing stamping dies according to claim 1, characterized in that, The mounting plate (57) has a mounting groove that is slidably connected to the upper mold (56). A mounting strip for fixing the upper mold (56) is inserted into one side of the mounting groove, which facilitates the replacement of the upper mold (56).

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