Novel structure for preventing jump scrap

Abstract

The utility model relates to the technical field of machining provides a new -type prevent waste material structure, including punch fixed part, raw material and lower mould knife edge still include: blanking punch. The utility model, external drive system provides pressure, on one hand makes the material removal plate guide right part and lower mould knife edge cooperation clamping raw material and prevents the shift, and the clamping area is wide, and the upper surface of lower mould knife edge is bonded raw material and forms stable clamping with material removal plate guide right part, on the other hand drives punch fixed part and blanking punch to move down and stamps out raw material, and the waste material is discharged from the discharge hole, and punch fixed part is radially limited to blanking punch through the mounting hole, and the bolt further limits its axial shift and is convenient to disassemble and improves the maintenance efficiency, the guide hole limits the trajectory of punch and the accurate alignment of lower mould knife edge, prevents the displacement of raw material and causes the deviation of waste material, guarantees the flatness of blanking section and avoids irregular waste material, improves structural stability and maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a novel structure for preventing scrap material from jumping. Background Technology

[0002] Punching is a common process for processing sheet metal parts in the manufacturing industry. It is widely used in hardware, electronics, automobiles and other fields. Its core is to apply pressure to the raw material by a blanking punch, and then use the die edge to separate the material to obtain the parts and scrap of the required shape. However, in existing technologies, the clamping area of ​​some blanking structures for holding raw materials is limited. Insufficient clamping force or uneven force can easily cause the raw material to shift during the blanking process, leading to blanking position deviation and inaccurate scrap placement. Furthermore, a pressure difference can easily form within the guide hole during blanking. When the blanking punch rises, a vacuum can easily be created within the hole, causing scrap to be drawn in and jump off with the punch. Simultaneously, scrap is prone to stagnation and adhesion in the discharge hole due to the lack of auxiliary thrust, not only interfering with subsequent blanking processes but also potentially causing equipment jamming, increasing the risk of failure, and even affecting the safety of the production environment. These problems collectively result in the existing blanking structures failing to meet the demands of high-precision, continuous production in terms of stability, processing accuracy, and production efficiency, necessitating urgent optimization and improvement. Utility Model Content

[0003] The purpose of this invention is to solve the problem in the prior art where a pressure difference easily forms in the guide hole during the punching process, causing the adsorbed waste material to jump off as the punch moves upward, thus affecting processing and production.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a novel structure for preventing scrap jumping: including a punch fixing part, raw material and a lower die cutting edge, and further including: The blanking punch is embedded inside the punch fixing part; The positioning assembly is located above the lower die cutter edge and includes stripper plate guide parts; The pressure balancing component is located on the outer surface of the guide parts of the stripper plate.

[0005] In a preferred embodiment, the upper surface of the lower die cutter edge is attached to the lower surface of the raw material, and the upper surface of the raw material is attached to the lower surface of the stripper plate guide part; The stripper plate guide parts and the lower die cutting edge clamp and fix the raw material.

[0006] The technical effect of adopting the above-mentioned further solution is that it can form a stable clamping force, prevent the raw material from shifting during the punching process, ensure the accuracy of the punching position, and reduce the waste position deviation caused by the displacement of the raw material.

[0007] In a preferred embodiment, the upper surface of the stripper plate guide component is provided with a guide hole; The lower end of the feeding punch is embedded inside the guide hole.

[0008] The technical effect of adopting the above-mentioned further solution is that the guide hole can strictly limit the movement trajectory of the blanking punch, ensure that the blanking punch and the lower die cutting edge are always accurately aligned, avoid the punch from shaking or deviating during blanking, thereby ensuring a flat blanking section, reducing the generation of irregular waste, and reducing the risk of waste jumping off due to abnormal shape.

[0009] In a preferred embodiment, the lower surface of the punch fixing part is provided with a mounting hole, the inner wall surface of the mounting hole is sleeved on the upper end of the feeding punch, and the outer surface of the feeding punch and the outer surface of the punch fixing part are fitted with pins.

[0010] The technical effects of adopting the above-mentioned further solution are: the mounting hole can radially limit the blanking punch, and the pin further restricts its axial movement. The double limit can stably constrain the movement of the blanking punch and prevent the punch from shaking and deviating during punching; at the same time, the pin is easy to disassemble, which can improve the efficiency of blanking punch inspection and replacement, and take into account both structural stability and maintenance convenience.

[0011] In a preferred embodiment, the pressure balancing assembly includes: Air holes are formed on the outer surface of the guide parts of the stripper plate; An air groove is formed at one end of an air hole.

[0012] The technical effects of the above-mentioned further solution are as follows: when the punch moves downward, the air hole discharges the compressed air in the guide hole, and when it moves upward, it cooperates with the air groove to introduce airflow to fill the vacuum space to balance the pressure and avoid vacuum adsorption of waste; the air groove can also optimize the airflow introduction path, increase the airflow velocity and thrust, and assist in pushing the waste out, thus cutting off the waste jumping power from both pressure control and auxiliary discharge aspects.

[0013] In a preferred embodiment, the lower die cutting edge has a discharge hole inside, and waste material is disposed inside the discharge hole.

[0014] The technical effects of adopting the above-mentioned further solution are: the discharge hole provides a dedicated discharge channel for the waste generated during punching, which can prevent the waste from accumulating and blocking in the punching area and ensure smooth continuous punching operation; at the same time, it reduces the retention of waste inside the equipment, reduces the risk of waste jumping off due to retention and adhesion, and maintains the punching stability of the overall structure.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention utilizes an external drive system to provide pressure. On one hand, this pressure causes the stripper plate guide parts to engage with the lower die cutting edge to clamp the raw material and prevent it from shifting. The clamping area is wide, and the upper surface of the lower die cutting edge adheres to the raw material, forming a stable clamping effect with the stripper plate guide parts. On the other hand, this pressure drives the punch fixing parts and the blanking punch to move downwards and punch the raw material. Scrap is discharged from the discharge hole. The punch fixing parts use mounting holes to radially limit the blanking punch, and the pins further limit its axial movement and facilitate disassembly, improving maintenance efficiency. The guide holes ensure precise alignment between the punch trajectory and the lower die cutting edge, preventing raw material displacement that could cause scrap to shift, ensuring a flat punching surface and avoiding irregular scrap, thus improving structural stability and maintenance convenience.

[0016] In this invention, during punching, the blanking punch moves downward, and the air in the guide hole is compressed and quickly discharged through the air hole. When the blanking punch returns to its original position, the air inlet device sends airflow to the air hole through the air groove. The airflow enters the guide hole to fill the space and can also push the waste material out of the discharge hole, avoiding waste material retention and adhesion. The air hole connects the guide hole and the discharge hole to form an airflow channel, preventing the upward movement of the punch from creating a vacuum that adsorbs waste material. The pressure balance cuts off the waste material jumping force. The diameter of the air groove is larger than that of the air hole, and the flow rate increases when the airflow passes through, ensuring the thrust to push the waste material and reducing the risk of waste material jumping out. Attached Figure Description

[0017] Figure 1 The mold closing state provided by this utility model is a novel structure for preventing scrap jumping. Main structure diagram; Figure 2 The mold opening state of the novel anti-waste structure provided by this utility model Structural diagram.

[0018] Legend: 1. Stripper plate guide parts; 2. Punch fixing parts; 3. Guide hole; 4. Discharge punch; 5. Pin; 6. Lower die cutting edge; 7. Raw material; 8. Discharge hole; 9. Scrap material; 10. Air hole; 11. Air groove; 12. Mounting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1 and Figure 2This embodiment provides a novel structure for preventing waste material from jumping, and its specific concept is as follows: As one specific implementation, it includes a punch fixing part 2, raw material 7, and lower die cutting edge 6, and also includes: The blanking punch 4 is embedded inside the punch fixing part 2; The positioning component is located above the lower die cutter 6 and includes the stripper plate guide part 1; The pressure balancing component is located on the outer surface of the guide part 1 of the stripper plate.

[0021] As one specific implementation, a guide hole 3 is provided on the upper surface of the stripper plate guide part 1; The lower end of the feeding punch 4 is embedded inside the guide hole 3.

[0022] In this embodiment, the specific type of positioning component can be various, and this application does not limit it. In an optional embodiment, as an example of a positioning component, the positioning component includes: a stripper plate guide part 1 and a guide hole 3, the specific quantity of each component as follows: Figure 1 and Figure 2 As shown, the settings are as follows: In this embodiment, a stripping plate guide component 1 is provided, which is supported by an external bracket and driven by a hydraulic pump to give the raw material 7 a downward pressure.

[0023] As a specific implementation method, such as Figure 1 As shown, the upper surface of the lower die cutter 6 is attached to the lower surface of the raw material 7, and the upper surface of the raw material 7 is attached to the lower surface of the stripper plate guide part 1. Among them, the stripper plate guide part 1 and the lower die cutter 6 clamp and fix the raw material 7.

[0024] The inner wall surface of the guide hole 3, which is used to limit the movement trajectory, matches the outer surface of the feeding punch 4. It is sleeved on the outer surface of the feeding punch 4, and limits the movement trajectory of the feeding punch 4 when it moves.

[0025] In addition, in this embodiment, for ease of maintenance, the lower surface of the punch fixing part 2 is provided with a mounting hole 12, the inner wall surface of the mounting hole 12 is sleeved on the upper end of the feeding punch 4, and the outer surface of the feeding punch 4 and the outer surface of the punch fixing part 2 are fitted with a pin 5.

[0026] In one specific implementation, the lower die cutter 6 has a discharge hole 8 inside, and waste material 9 is disposed inside the discharge hole 8.

[0027] In this embodiment, the stripper plate guide component 1 is pressured by an external drive system and cooperates with the lower die cutter 6 to clamp and fix the raw material 7, preventing the raw material 7 from moving around. The external drive system provides pressure, causing the punch fixing component 2 to drive the blanking punch 4 downward to punch the raw material 7. The waste material 9 is discharged through the discharge hole 8. The guide hole 3 can also limit the movement trajectory of the blanking punch 4, ensuring that the punch and the lower die cutter 6 are accurately aligned. This not only prevents the displacement of the raw material 7 from causing the waste material 9 to shift, but also ensures that the blanking cross-section is flat to reduce irregular waste. The upper surface of the die blade 6 and the material 7 stripper plate guide parts are closely fitted to form a stable clamping structure. The rounded transition of the blade edge prevents the waste material 9 from jumping off as the punch moves upward. The punch fixing part 2 is precisely matched with the upper end of the blanking punch 4 through the mounting hole 12 to achieve radial limit. The pin 5 further restricts the axial movement of the blanking punch 4. The pin 5 is also easy to disassemble to improve maintenance efficiency. Together, they firmly restrict the movement of the blanking punch 4, prevent the punch from shaking and deviating during punching, and improve the stability and maintenance convenience of the structure. Example

[0028] like Figure 1 and Figure 2 As shown, based on Embodiment 1, this embodiment also provides a pressure balancing assembly, disposed on the outer surface of the stripper plate guide part 1, including: Air holes 10 are formed on the outer surface of the stripper plate guide part 1; The air groove 11 is located at one end of the air hole 10.

[0029] In one specific implementation, the pressure balancing assembly includes: vent 10 and vent groove 11; The air hole 10, which connects the guide hole 3 and the discharge hole 8, is opened on the outer surface of the stripper plate guide part 1.

[0030] The air slot 11 for connecting the air intake device is located at the end of the air hole 10 away from the guide hole 3.

[0031] In this embodiment, during the punching process, when the punch 4 moves downward, the air in the guide hole 3 is compressed and quickly discharged through the air hole 10; when the punch 4 returns to its original position, the air intake device delivers airflow into the air hole 10 through the air groove 11. The airflow enters the guide hole 3 along the air hole 10, filling the space left by the punch 4 moving upward. At the same time, part of the airflow pushes the waste material 9 out through the discharge hole 8, preventing the waste material 9 from being retained or stuck in the discharge hole 8. The air hole 10 connects the guide hole 3 and the discharge hole 8 to form an airflow channel, preventing the vacuum adsorption of the waste material 9 when the punch moves upward. From the perspective of pressure balance, the power source for the waste material 9 to jump off is cut off. The diameter of the air groove 11 is larger than the diameter of the air hole 10. When the airflow from the air intake device enters the air hole 10 through the air groove 11, the flow rate increases, ensuring the thrust to push the waste material 9 and reducing the risk of the waste material 9 jumping off.

[0032] Working principle: The punch fixing part 2 forms a precise fit with the upper end of the blanking punch 4 through the mounting hole 12, thereby achieving radial limitation of the blanking punch 4. At the same time, it works with the pin 5 to further limit the axial movement of the blanking punch 4. The pin 5 is also easy to disassemble. The external drive system provides pressure, causing the punch fixing part 2 to drive the blanking punch 4 downward to punch the raw material 7. The generated waste material 9 is discharged through the discharge hole 8. Under the pressure provided by the external drive system, the stripper plate guide part 1 cooperates with the lower die cutter 6 to clamp and fix the raw material 7. The guide hole 3 of the stripper plate can limit the movement trajectory of the blanking punch 4, ensuring that the blanking punch 4 and the lower die cutter 6 are precisely aligned.

[0033] During the punching process, when the punch 4 returns to its original position, the air intake device delivers airflow to the air groove 11. Since the diameter of the air groove 11 is larger than the diameter of the air hole 10, the airflow velocity increases as it passes through the air groove 11 and enters the air hole 10. This causes the airflow to flow quickly towards the guide hole 3, filling the space left in the guide hole 3 after the punch 4 moves upward. At the same time, some of the airflow continues to act on the waste material 9, pushing it out along the discharge hole 8. When the punch 4 moves downward, the air inside the guide hole 3 is compressed by the punch. This compressed air is quickly discharged through the air hole 10. In addition, the air hole 10 connects the guide hole 3 and the discharge hole 8, forming a stable airflow channel, which can effectively prevent a vacuum environment from being generated in the guide hole 3 when the punch 4 moves upward.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel structure for preventing scrap jumping, comprising a punch fixing part (2), raw material (7), and a lower die cutting edge (6), characterized in that, Also includes: The blanking punch (4) is embedded inside the punch fixing part (2); The positioning component is located above the lower die cutter edge (6) and includes a stripper plate guide part (1). The pressure balancing component is set on the outer surface of the guide part (1) of the stripper plate.

2. The novel anti-waste-jumping structure according to claim 1, characterized in that, The upper surface of the lower die cutter (6) is attached to the lower surface of the raw material (7), and the upper surface of the raw material (7) is attached to the lower surface of the stripper guide part (1). Among them, the stripper plate guide part (1) and the lower die cutter (6) clamp and fix the raw material (7).

3. The novel anti-waste-jumping structure according to claim 1, characterized in that, The upper surface of the stripper plate guide part (1) is provided with a guide hole (3); The lower end of the feeding punch (4) is embedded inside the guide hole (3).

4. The novel anti-waste material jumping structure according to claim 3, characterized in that, The lower surface of the punch fixing part (2) is provided with a mounting hole (12), the inner wall surface of the mounting hole (12) is sleeved on the upper end of the feeding punch (4), and the outer surface of the feeding punch (4) and the outer surface of the punch fixing part (2) are fitted with a pin (5).

5. The novel structure for preventing waste material from jumping according to claim 1, characterized in that, The pressure balancing component includes: Air holes (10) are formed on the outer surface of the stripper plate guide part (1); An air groove (11) is provided at one end of an air hole (10).

6. The novel structure for preventing waste material from jumping according to claim 1, characterized in that, The lower die cutter (6) has a discharge hole (8) inside, and waste material (9) is placed inside the discharge hole (8).

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