Anti-jump scrap punching device

Abstract

This utility model provides an anti-jumping scrap stamping device, including an upper die assembly and a lower die assembly, and further including: a punch, which is inserted into the upper die assembly, and an elastic mechanism is inserted inside the punch, the elastic mechanism performing telescopic movement within the punch; a cutting edge, which is embedded in the lower die assembly; and a limiting structure is provided at the position adjacent to the cutting edge; in the die-closed state, the punch pushes the scrap material after stamping the sheet metal into the limiting structure by the elastic mechanism, and the limiting structure limits the scrap material; the anti-jumping scrap stamping device proposed by this utility model can better limit the position of the scrap material after stamping, preventing the scrap material from entering the surface of the sheet metal and causing damage to the sheet metal; in addition, there is no need to adjust the reverse taper of the cutting edge, etc., thereby avoiding problems such as burrs.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a stamping device for preventing waste from jumping out. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube, and profile, causing plastic deformation or separation to obtain workpieces (stamped parts) of the required shape and size. In sheet metal stamping, scrap often occurs during the separation process, leaving waste on the workpiece surface. This waste can cause surface damage during subsequent stamping operations.

[0003] In existing technologies, common methods to prevent chip jumping include making the punch head irregularly shaped, making a reverse taper on the cutting edge, or making a small concave anti-chip jumping structure on the cutting edge to ensure that the scrap does not jump. However, in mass production, making a reverse taper on the punch head and cutting edge molds other parts, which causes the anti-chip jumping to fail. On the other hand, making a small concave anti-chip jumping structure on the cutting edge is prone to burrs on the workpiece, which will affect the performance and appearance of high-precision products. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-jumping waste stamping device, which can solve the above-mentioned technical problems;

[0005] This utility model provides an anti-jumping scrap stamping device, including an upper die assembly and a lower die assembly, and further includes:

[0006] A punch is inserted into the upper module, and an elastic mechanism is inserted inside the punch, which performs telescopic movement inside the punch.

[0007] The cutting edge is embedded in the lower mold assembly; and a limiting structure is set at the position adjacent to the cutting edge; in the mold closing state, the waste material generated after stamping is pushed into the limiting structure by the elastic mechanism, and the waste material is limited by the limiting structure.

[0008] As a further technical solution, a fixing block is provided inside the upper module, and one end of the punch is placed inside the fixing block.

[0009] As a further technical solution, the flexible mechanism includes:

[0010] The push rod has one end set inside the mounting cavity of the punch, and the other end passes through the punch and is placed outside the punch;

[0011] The reset body is located between the upper module and one end of the push rod.

[0012] As a further technical solution, a limit block is provided at one end of the push rod, and the limit block is placed inside the mounting cavity; and the reset body is placed between the limit block and the upper module.

[0013] Preferably, the resetting body is a spring.

[0014] As a further technical solution, the limiting structure includes:

[0015] The mounting block is located within the lower module.

[0016] The feeding channel is located inside the mounting block, and a limit protrusion is provided inside the feeding channel.

[0017] As a further technical solution, the blade is provided with a mounting protrusion, and the mounting block is provided with a mounting groove, with the mounting protrusion and the mounting groove being compatible.

[0018] As a further technical solution, a discharge channel is also provided on the lower module, which is set opposite to the discharge channel.

[0019] As a further technical solution, a limiting pressure plate is provided on one side of the lower module; the sheet material enters between the upper and lower modules through the position of the limiting pressure plate.

[0020] As a further technical solution, the limiting pressure plate is fixed to the lower module by a connecting block, and a slot adapted to the connecting block is provided on the upper module.

[0021] The technical solution of this utility model uses a punch on the upper die and a cutting edge on the lower die to stamp the sheet material between the upper and lower dies. During stamping, the punch presses down on the sheet material and the cutting edge makes an opening at the stamping position. After the opening, an elastic mechanism pushes the stamped waste material into a limiting structure, which restricts the waste material. After the die is opened, the waste material cannot leave the limiting structure, thus preventing it from entering the sheet material. Compared with the prior art, the technical solution of this utility model can better restrict the position of the waste material after stamping, preventing it from entering the sheet material surface and causing damage. In addition, there is no need to adjust the taper of the cutting edge, thus avoiding problems such as burrs. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the anti-jumping waste stamping device of this utility model from one angle;

[0024] Figure 2This is a structural schematic diagram of the anti-jumping waste stamping device of this utility model from another angle;

[0025] Figure 3 for Figure 2 A sectional view of section AA;

[0026] Figure 4 for Figure 3 Enlarged structural diagram of section X in the middle;

[0027] Figure 5 This is a perspective view of an anti-jumping waste stamping device according to the present invention.

[0028] Figure 6 This is a perspective view of another angle of the anti-jumping waste stamping device of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 - Upper module; 101 - Slot; 200 - Lower module; 300 - Punch; 400 - Elastic mechanism; 401 - Push rod; 402 - Reset body; 403 - Limiting block; 500 - Cutting edge; 501 - Mounting protrusion; 600 - Limiting structure; 601 - Mounting block; 602 - Discharge channel; 603 - Limiting protrusion; 700 - Fixing block; 800 - Discharge channel; 901 - Limiting pressure plate; 902 - Connecting block; 1000 - Material strip. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of 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.

[0034] like Figure 1-6 As shown, an anti-jumping waste stamping device includes an upper die 100 and a lower die 200. In this invention, the upper die 100 and the lower die 200 are mounted on a press, and the upper die 100 and the lower die 200 are opened and closed under the drive of the press. The upper die 100 and the lower die 200 are both existing technologies and will not be described further. The device also includes:

[0035] A punch 300 is mounted on the upper module 100, and an elastic mechanism 400 is mounted inside the punch 300. The elastic mechanism 400 performs telescopic movement within the punch 300. Specifically, when the punch 300 is installed on the upper module 100, the upper module 100 and the punch 300 cooperate to restrict the elastic mechanism 400 within the upper module 100. When the mold is closed, the upper module 100 can restrict the position of the elastic mechanism 400, allowing the elastic mechanism 400 to perform telescopic movement within the punch 300.

[0036] The cutting edge 500 is embedded in the lower die 200; and a limiting structure 600 is provided adjacent to the cutting edge 500; in the mold-closed state, the waste material generated after stamping is pushed into the limiting structure 600 by the elastic mechanism 400, and the limiting structure 600 limits the waste material; specifically, during mold closing, the upper die 100 gradually approaches the lower die 200; since one end of the elastic mechanism 400 is placed outside the punch 300; during the mold closing process, the elastic mechanism 400 first contacts the sheet metal 1000, and then moves along with the upper die 1000. As the plate 100 moves, the punch 300 contacts the plate 1000, at which point the elastic mechanism 400 retracts into the punch 300. During the continuous pushing process, the cutting edge 500 works together to punch the plate 1000. After the plate 1000 is punched, the elastic mechanism 400 extends the punch 300 and pushes the punched waste into the limiting structure 600, which restricts the position of the waste. When the mold opens, the upper mold assembly 100 drives the punch 300 to separate from the cutting edge 500, completing one punching of the plate 1000.

[0037] As the sheet material 1000 continues to enter, it is continuously punched by the punch 300 and the cutting edge 500; and after each punching, the waste material is pushed into the limiting structure 600 by the elastic mechanism 400.

[0038] The technical solution of this utility model uses a punch 300 on the upper die 100 and a cutting edge 500 on the lower die 200 to punch the sheet metal 1000 that enters between the upper die 100 and the lower die 200. During punching, the punch 300 presses down on the sheet metal 1000 and the cutting edge 500 opens the punching position. After the opening, the elastic mechanism 400 pushes the punched waste into the limiting structure 600, and the limiting structure 600 restricts the waste. After the die is opened, the waste cannot leave the limiting structure 600, thus preventing the waste from entering the sheet metal 1000. Compared with the prior art, the technical solution of this utility model can better restrict the position of the waste after punching, preventing the waste from entering the surface of the sheet metal 1000 and causing damage to the sheet metal 1000. In addition, there is no need to adjust the taper of the cutting edge 500, thus avoiding problems such as burrs.

[0039] like Figure 4 As shown, a fixing block 700 is provided inside the upper module 100, and one end of the punch 300 is placed inside the fixing block 700; specifically, the fixing block 700 is locked inside the upper module 100 and the punch 300 is installed, which can improve the efficiency of disassembly and assembly when disassembling and assembling the punch 300.

[0040] In this invention, the elastic mechanism 400 includes a push rod 401 and a reset body 402. One end of the push rod 401 is disposed in the mounting cavity within the punch 300, and the other end passes through the punch 300 and is positioned outside the punch 300. The reset body 402 is disposed between the upper mold assembly 100 and one end of the push rod 401. When the mold is closed, the push rod 401 moves with the punch 300 towards the plate 1000, and the other end of the push rod 401 first contacts the plate 1000. Under the relative force between the upper mold assembly 100 and the plate 1000, the push rod 401 retracts into the punch 300. Due to the retraction of the push rod 401, the push rod 401 squeezes the reset body 402. The pressure causes the reset body 402 to be in a compressed state. As the punch 300 contacts the sheet metal 1000 and applies force to the sheet metal 1000 under the continuous action of the upper die 100, the sheet metal 1000 is stamped by the punch 300 and the cutting edge 500. After the sheet metal 1000 is stamped, the sheet metal 1000 no longer restricts the ejector pin 401. Under the push of the reset body 402, the ejector pin 401 pushes the scrap material, causing the scrap material to be pushed into the limiting structure 600. The limiting structure 600 restricts the scrap material. When the mold is opened, the scrap material will not move out of the limiting structure 600 along with the punch 300 or the ejector pin 401 because it is restricted by the limiting structure 600.

[0041] Additionally, a limiting block 403 is provided at one end of the top rod 401, and the limiting block 403 is placed inside the mounting cavity; and the reset body 402 is placed between the limiting block 403 and the upper module 100; and an inner locking block is provided inside the mounting cavity to limit the movement distance of the limiting block 403; at the same time, in conjunction with the upper module 100, the reset body 402 is restricted within the mounting cavity; in this utility model, preferably, the reset body 402 is a spring.

[0042] like Figure 4 As shown, the limiting structure 600 includes a mounting block 601 and a discharge channel 602. The mounting block 601 is disposed within the lower module 200; the discharge channel 602 is formed within the mounting block 601, and a limiting protrusion 603 is provided inside the discharge channel 602; the mounting block 601 allows for better assembly and disassembly with the lower module 200; when the mounting block 601 is damaged, it can be directly replaced; and the discharge channel 602 and the cutting edge 50... 0 connection; when the punch 300 and the cutting edge 500 punch the sheet 1000, the ejector pin 401 pushes the scrap into the unloading channel 602 through the cutting edge 500. During the process of the ejector pin 401 pushing the scrap, the scrap will be slightly deformed; and after deformation, it will be stuck by the limiting protrusion 603; to prevent the scrap from leaving the limiting structure 600 when the mold is opened later; and when the scrap enters the unloading channel 602, it will fall naturally in the unloading channel 602 under its own gravity.

[0043] In addition, the cutting edge 500 is provided with a mounting protrusion 501, and the mounting block 700601 is provided with a mounting groove. The mounting protrusion 501 and the mounting groove are compatible. Through the cooperation of the mounting protrusion 501 and the mounting groove, the cutting edge 500 and the mounting block 700601 can be stably connected. After being placed in the lower module 200, the fixation between the cutting edge 500 and the mounting block 700601 can be more secure, avoiding displacement during subsequent use.

[0044] After the scrap material falls through the feed channel 602, it is placed inside the feed channel 602. As the number of stamping cycles increases, the amount of scrap material in the feed channel 602 gradually increases. Therefore, in order to increase the service life, it is preferable to also provide a discharge channel 800 on the lower die 200, which is opposite to the feed channel 602. In this way, when the scrap material falls naturally, it will enter the discharge channel 800 from the feed channel 602, pass through the discharge channel 800 and be placed outside the lower die 200 for scrap collection. After the scrap material falls, there is no scrap material in the feed channel 602, which can increase the service life of stamping.

[0045] During use, the sheet material 1000 enters from one end of the upper module 100 and the lower module 200. To ensure the flatness of the sheet material 1000 during entry, a limiting pressure plate 901 is preferably provided on one side of the lower module 200. The sheet material 1000 enters between the upper module 100 and the lower module 200 through the position of the limiting pressure plate 901. During the entry process, the sheet material 1000 is limited by the limiting pressure plate 901 to prevent deformation of the sheet material 1000 when it enters between the upper module 100 and the lower module 200.

[0046] Of course, in order to better connect and adjust the limiting pressure plate 901, the limiting pressure plate 901 is preferably fixed to the lower module 200 by the connecting block 902, and a slot 101 adapted to the connecting block 902 is provided on the upper module 100; in the mold closing state, the connecting block 902 is placed in the slot 101; and according to the needs of use, the length on the lower module 200 can be adjusted, thereby changing the distance between the limiting pressure plate 901 and one side of the lower module 200, so as to more flexibly restrict the plate 1000; in this utility model, the connecting block 902 is preferably connected to the lower module 200 by bolts; and the position of the connecting block 902 on the lower module 200 can be changed by changing the position of the bolt and the screw hole on the lower module 200.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A skip-proof scrap punching device comprising an upper die set (100) and a lower die set (200), characterized in that, Also includes: A punch (300) is inserted into the upper module (100), and an elastic mechanism (400) is inserted into the punch (300), the elastic mechanism (400) performing telescopic movement within the punch (300); The cutting edge (500) is embedded in the lower mold (200); and a limiting structure (600) is provided at the position adjacent to the cutting edge (500); in the mold closing state, the waste generated after stamping is pushed into the limiting structure (600) by the elastic mechanism (400), and the waste is limited by the limiting structure (600).

2. The anti-jump scrap punching device according to claim 1, characterized in that, A fixing block (700) is provided inside the upper module (100), and one end of the punch (300) is placed inside the fixing block (700).

3. The skip-proof scrap punching apparatus of claim 1, wherein, The elastic mechanism (400) includes: The push rod (401) has one end located in the mounting cavity inside the punch (300), and the other end passes through the punch (300) and is placed outside the punch (300); The reset body (402) is disposed between the upper module (100) and one end of the top rod (401).

4. The anti-jump scrap punching device according to claim 3, characterized in that, One end of the top rod (401) is provided with a limiting block (403), which is placed inside the mounting cavity; and the reset body (402) is placed between the limiting block (403) and the upper module (100).

5. The anti-jump scrap punching device of claim 4, wherein, The reset body (402) is a spring.

6. The skip-proof scrap punching apparatus of claim 1, wherein, The limiting structure (600) includes: Mounting block (601) is disposed within the lower module (200); The feeding channel (602) is located inside the mounting block (601), and a limiting protrusion (603) is provided inside the feeding channel (602).

7. The skip-proof scrap punching device according to claim 6, characterized in that The cutting edge (500) is provided with a mounting protrusion (501), and the mounting block (601) is provided with a mounting groove. The mounting protrusion (501) and the mounting groove are adapted to each other.

8. The anti-jump scrap punching device of claim 7, wherein, The lower module (200) is also provided with a discharge channel (800), which is arranged opposite to the discharge channel (602).

9. The skip-proof scrap punching apparatus of claim 1, wherein, A limiting pressure plate (901) is provided on one side of the lower module (200); the plate (1000) enters between the upper module (100) and the lower module (200) through the position of the limiting pressure plate (901).

10. The anti-jump scrap punching device of claim 9, wherein, The limiting pressure plate (901) is fixed on the lower module (200) by the connecting block (902), and a slot (101) adapted to the connecting block (902) is provided on the upper module (100).

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