A high-efficiency multi-station mold

Abstract

The utility model relates to the technical field of molds, in particular to a high-efficiency multi-station mold, comprising an upper mold and a corresponding lower mold, wherein the upper mold is provided with a first station, a second station, a third station, and a fourth station, the upper mold is provided with a guide portion, a molding groove is provided on a pressing plate, and a buffer structure matched with the pressing plate is respectively provided in the first station and the second station, and the buffer structures are respectively provided in the first station and the second station, and the two buffer structures contain different parts, so as to achieve buffering of different amplitudes, thereby meeting the needs of parts of different specifications, and by directly providing the pressing plate at the third station, workpieces that do not need buffering can be processed, thereby improving the application range of the mold, and the elastic parts of the buffer structure are all nitrogen springs, which have a long service life, are not easy to deform or age, are smaller in size, are suitable for environments with limited space, and are also lighter in weight.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a high-efficiency multi-station mold. Background Art

[0002] A stamping die is a forming device that processes metal or non-metallic materials into parts or semi-finished products during the stamping process. At room temperature, the stamping die installed on the stamping machine applies pressure to the material to cause it to separate or plastically deform, thereby obtaining the desired parts. The cold stamping die usually consists of an upper die, a lower die and a die seat. During the stamping process, the upper and lower dies are subjected to the force of the stamping machine to form a closed state, allowing the material to deform or separate between the dies. The advantages of cold stamping include high production efficiency, high processing precision, good surface quality, and the ability to achieve automated production.

[0003] In order to increase the processing efficiency, the existing stamping dies usually adopt a multi-station design, so as to realize the stamping of multiple workpieces at one time. For example, Chinese patent announcement number CN112317613A discloses a "multi-station stamping die", which guides and limits the material belt through the positioning columns on both sides, thereby enhancing the stability of the material belt during transportation; and the rotation of the rotating sleeve can make the peripheral locking pins penetrate into the positioning holes in turn, and drive the material belt forward with the rotation, so that the workpieces on the material belt can be accurately moved to each stamping station and aligned with the punch, thereby improving the accuracy of stamping;

[0004] However, in actual use, due to the different requirements of stamping parts of different specifications, some stamping parts require a large buffer during the stamping process, while some stamping parts only require a small buffer or no buffer. The existing multi-station molds are difficult to process these parts at the same time, and multiple molds need to be used for separate processing, which increases costs. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art that the buffering amplitudes required for stamping parts during the stamping process are inconsistent, the existing multi-station molds are difficult to process these parts at the same time, and multiple molds are needed to process them separately, and an efficient multi-station mold is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Design an efficient multi-station mold, including an upper mold and a corresponding lower mold, the upper mold is provided with a first station, a second station, a third station, and a fourth station, the upper mold is provided with a guide portion, the first station, the second station, the third station, and the fourth station are all provided with a press plate, the press plate is provided with a forming groove, the first station and the second station are respectively provided with a buffer structure matched with the press plate, and the fourth station is provided with a support structure matched with the press plate;

[0008] The first station and the second station are both provided with trimming components, the trimming components include a plurality of knife blocks, the first station is provided with a punching device, and the pressing plate is provided with through holes corresponding to the punching device.

[0009] Furthermore, the buffer structure includes a guide column, the top of which is in contact with the pressing plate, a first nitrogen spring is sleeved on the guide column, and two ends of the first nitrogen spring are respectively in contact with the pressing plate and the first workstation.

[0010] Furthermore, the punching device includes a fixing seat and a punch, the fixing seat is arranged in the first station, and the punch is fixed on the fixing seat.

[0011] Furthermore, the support structure includes a plurality of support columns, and a limit block is fixedly provided at the lower end of the pressing plate.

[0012] Furthermore, the buffer structure includes a plurality of mounting holes opened in the second station, a support plate is arranged below the mounting holes, and a second nitrogen spring is arranged in the mounting holes.

[0013] Furthermore, the buffer structure also includes a pressing block, and a push pin is provided on the pressing block.

[0014] The utility model proposes a high-efficiency multi-station mold, which has the following beneficial effects:

[0015] In the utility model, by respectively setting a buffer structure at the first station and the second station, the two buffer structures contain different parts, and achieve buffering of different amplitudes, thereby meeting the needs of parts of different specifications, and by directly setting a pressing plate at the third station, the workpiece that does not need buffering can be processed, thereby improving the application range of the mold;

[0016] Secondly, in the utility model, the elastic parts of the buffer structure in the first station and the second station are nitrogen springs. Nitrogen springs have a long service life, are not easy to deform or age, have strong resilience and compression performance, can provide stable spring force, and compared with traditional springs, nitrogen springs are smaller in size, suitable for environments with limited space, and are lighter in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a high-efficiency multi-station mold proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the guide column of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the support column of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of area A of the utility model.

[0021] In the figure: 1. upper die; 11. first station; 12. second station; 13. third station; 14. fourth station; 2. guide part; 3. press plate; 4. forming groove; 5. buffer structure; 51. guide column; 52. first nitrogen spring; 53. support plate; 54. second nitrogen spring; 55. press block; 56. ejector pin; 6. support structure; 61. support column; 62. limit block; 7. trimming assembly; 71. knife block; 8. punching device; 81. fixing seat; 82. punch. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-2 ,

[0024] Embodiment 1:

[0025] A high-efficiency multi-station mold, comprising an upper mold 1 and a corresponding lower mold, wherein the upper mold 1 is provided with a first station 11, a second station 12, a third station 13, and a fourth station 14, and the upper mold 1 is provided with a guide portion 2, and the first station 11, the second station 12, the third station 13, and the fourth station 14 are all provided with a pressing plate 3, the bottom of the third station 13 is directly in contact with the pressing plate 3 and is fixed by bolts, etc., and a molding groove 4 is opened on the pressing plate 3, and a buffer structure 5 matched with the pressing plate 3 is respectively provided in the first station 11 and the second station 12, and a supporting structure 6 matched with the pressing plate 3 is provided in the fourth station 14;

[0026] The first station 11 and the second station 12 are both provided with a trimming assembly 7 , which includes a plurality of knife blocks 71 . A punching device 8 is provided in the first station 11 , and a through hole corresponding to the punching device 8 is opened on the pressing plate 3 .

[0027] In the utility model, the workpiece is stamped by means of a pressing plate 3, and a buffer structure 5 is respectively provided at the first station 11 and the second station 12. The two buffer structures 5 are different and achieve buffering of different magnitudes, thereby meeting the needs of parts of different specifications, and by directly providing a pressing plate at the third station 13, workpieces that do not require buffering can be processed, thereby improving the applicability of the mold. In some embodiments, a sliding independent guide column is provided between the pressing plate 3 of the first station 11 and the bottom of the first station 11, for limiting the moving trajectory of the pressing plate 3.

[0028] Furthermore, in the present embodiment, the buffer structure 5 includes a guide column 51, the top of which is in contact with the pressure plate 3, a first nitrogen spring 52 is sleeved on the guide column 51, and both ends of the first nitrogen spring 52 are respectively in contact with the pressure plate 3 and the first workstation 11. The first nitrogen spring 52 is used for buffering, has a long service life, is not easy to deform or age, has strong resilience and compression performance, can provide a stable spring force, and compared with traditional springs, the nitrogen spring is smaller in size, suitable for environments with limited space, and is also lighter in weight.

[0029] Furthermore, in the present embodiment, the punching device 8 includes a fixing seat 81 and a punch 82 . The fixing seat 81 is disposed in the first station 11 . The punch 82 is fixedly disposed on the fixing seat 81 . The punch 82 is movably connected to the through hole of the pressing plate.

[0030] It should be noted that, in the present embodiment, the support structure 6 includes a plurality of support columns 61, a limiting block 62 is fixedly provided at the lower end of the pressing plate 3, one end of the support column 61 passes through the fourth station 14 and is connected to the limiting portion, thereby preventing the pressing plate 3 from being separated from the fourth station 14, and the pressing plate 3 is fixed by the limiting block 62 abutting against the bottom of the fourth station 14. In some embodiments, a nitrogen spring is provided between the limiting block 62 and the fourth station 14.

[0031] Embodiment 2:

[0032] Reference Figure 3-4 The buffer structure 5 includes a plurality of mounting holes opened in the second work station 12, a support plate 53 is arranged below the mounting holes, and a second nitrogen spring 54 is arranged in the mounting holes. In this embodiment, the support plate 53 is arranged to support the plurality of second nitrogen springs 54, and the distance between the second nitrogen spring 54 and the pressing plate 3 is larger, so that the buffering amplitude of the second nitrogen spring 54 is larger than that of the first nitrogen spring 52, thereby processing workpieces of other specifications.

[0033] In addition, in some embodiments, the buffer structure 5 also includes a pressure block 55, which is arranged between the second nitrogen spring 54 and the pressure plate 3, greatly reducing the buffering amplitude of the second nitrogen spring 54, and can process workpieces of certain specifications. A push pin 56 is arranged on the pressure block 55, and the push pin 56 is an elastic push pin to prevent the workpiece from being carried when the upper mold moves upward. In some embodiments, a limiting portion that cooperates with the pressure block 55 is fixedly arranged on the second workstation 12 to prevent the pressure block 55 from separating from the second workstation 12.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency multi-station mold, comprising an upper mold (1) and a corresponding lower mold, characterized in that: The upper mold (1) is provided with a first station (11), a second station (12), a third station (13), and a fourth station (14); the upper mold (1) is provided with a guide portion (2); the first station (11), the second station (12), the third station (13), and the fourth station (14) are all provided with a press plate (3); the press plate (3) is provided with a molding groove (4); the first station (11) and the second station (12) are respectively provided with a buffer structure (5) matched with the press plate (3); the fourth station (14) is provided with a support structure (6) matched with the press plate (3); The first workstation (11) and the second workstation (12) are both provided with a trimming assembly (7), the trimming assembly (7) comprising a plurality of knife blocks (71), a punching device (8) is provided in the first workstation (11), and a through hole corresponding to the punching device (8) is opened on the pressing plate (3).

2. The high-efficiency multi-station mold according to claim 1, characterized in that: The buffer structure (5) comprises a guide column (51), the top of which is in contact with the pressing plate (3), a first nitrogen spring (52) is sleeved on the guide column (51), and two ends of the first nitrogen spring (52) are respectively in contact with the pressing plate (3) and the first work station (11).

3. The high-efficiency multi-station mold according to claim 1, characterized in that: The punching device (8) comprises a fixed seat (81) and a punch (82); the fixed seat (81) is arranged in the first work station (11); and the punch (82) is fixedly arranged on the fixed seat (81).

4. The high-efficiency multi-station mold according to claim 1, characterized in that: The support structure (6) comprises a plurality of support columns (61), and a limiting block (62) is fixedly provided at the lower end of the pressing plate (3).

5. The high-efficiency multi-station mold according to claim 1, characterized in that: The buffer structure (5) comprises a plurality of mounting holes opened in the second workstation (12), a support plate (53) is arranged below the mounting holes, and a second nitrogen spring (54) is arranged in the mounting holes.

6. The high-efficiency multi-station mold according to claim 5, characterized in that: The buffer structure (5) further comprises a material pressing block (55), and a material ejecting pin (56) is arranged on the material pressing block (55).

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