Die punch and stripper device

Abstract

The die punch and the material discharging device provided in the embodiments of the present disclosure comprise: a punch body, one end of which is provided with a blanking die opening in contact with a stamping material; and at least one material discharging channel, which is provided in the punch body in a through manner along the axial direction of the punch body and one end of which is communicated with the blanking die opening, so that the stamping waste generated during stamping can be discharged through the material discharging channel. By arranging the at least one material discharging channel, it is ensured that the waste generated during stamping can be quickly and smoothly discharged from the material discharging channel, and the influence of the residual waste on the subsequent blanking operation is avoided, thereby reducing the risk of the product surface being pressed by small waste.

Description

Technical Field

[0001] This disclosure relates to the field of mold technology, and in particular to mold punches and stripping devices. Background Technology

[0002] In modern manufacturing stamping processes, die punches are key components used for precise cutting and forming of metal or non-metal materials. As industrial production demands increasingly higher product quality and efficiency, higher standards are being placed on die design. However, in practical applications, especially when processing products with complex structures such as central holes, product quality issues often arise due to untimely scrap removal.

[0003] Theoretically, small scrap pieces should be ejected by the anti-ejection mechanism and fall naturally to the lower die plate under gravity. When the upper die stripper plate is raised to a specific position, the system starts blowing air to ensure that the small scrap pieces are completely removed from the die surface. However, in actual operation, this process may be affected by various factors and fail to achieve the expected results: for example, the scrap piece may not have enough gravity to fall onto the die surface and be blown away; or due to the material and thickness of the stripper plate, it may have a certain degree of magnetism, causing the scrap piece to be attracted and not fall easily; furthermore, the adhesive effect of stamping oil increases the adhesion between the scrap piece and the die surface, making it difficult for the scrap piece to fall off. If the scrap piece fails to fall off the die surface or be blown away in time, these residual scrap pieces will damage the product surface during the next stamping process. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this disclosure is to provide a die punch and stripping device to solve the problems in the related technology.

[0005] The first aspect of this disclosure provides a die punch, comprising:

[0006] The punch body has at least one blanking die opening at one end that contacts the stamping material;

[0007] At least one discharge channel is disposed through the punch body along the axial direction of the punch body, and one end is connected to the blanking die opening so that the stamping waste generated during stamping can be discharged through the discharge channel.

[0008] In an embodiment of the first aspect, the other end of the discharge channel is connected to a transition channel, and the transition channel and the discharge channel are inclined at a preset angle so that the stamping waste is discharged at an incline along the transition channel.

[0009] In an embodiment of the first aspect, the end of the transition channel away from the discharge channel is connected to a discharge assembly; or, the end of the transition channel away from the discharge channel is connected to a storage space for storing the stamping waste.

[0010] In an embodiment of the first aspect, a tongue is provided at one end of the discharge channel facing the die opening, the tongue being configured to be pushed open only upwards.

[0011] In an embodiment of the first aspect, one end of the tongue is hinged to the inner wall of the discharge channel, and the other end is detachably abutted against the inner wall of the discharge pipe; and / or, the tongue is connected to an elastic element that provides a reset for returning it to its pushed-open state.

[0012] In an embodiment of the first aspect, at least a portion of the inner wall of the discharge channel is provided with an interference portion for blocking the stamping waste.

[0013] In an embodiment of the first aspect, the interference portion includes a spiral structure disposed along the inner wall of the discharge channel; and / or, the interference portion is interference-fitted with the stamping scrap; and / or, the interference portion is formed on the inner wall of the discharge channel at one end facing the die opening.

[0014] In an embodiment of the first aspect, the end of the discharge channel facing the blanking die orifice matches the shape and size of the blanking die orifice.

[0015] In an embodiment of the first aspect, it further includes: at least one positioning member disposed on the punch body for positioning connection with the discharge assembly so that the punch body and the discharge assembly are mutually positioned and connected in a mating posture; wherein, in the mating posture, the discharge channel and the transition channel in the discharge assembly are aligned and connected.

[0016] A second aspect of this disclosure provides a stripping device, which includes the aforementioned die punch.

[0017] The beneficial effects of this disclosure are: by setting at least one discharge channel, it is ensured that the waste generated during the stamping process can be discharged quickly and smoothly from the discharge channel, avoiding the impact of residual waste on subsequent stamping operations, thereby reducing the risk of the product surface being damaged by small waste. Attached Figure Description

[0018] Figure 1 as well as Figure 2 Perspective views of the die punch from different angles are shown in one embodiment of this disclosure.

[0019] Figure 3 A bottom view showing a section line A in a die punch according to an embodiment of the present disclosure is shown.

[0020] Figure 4 Demonstrating an embodiment of this disclosure along Figure 3 The cross-sectional view obtained by section line A in the embodiment.

[0021] Figure 5A bottom view showing a section line B in the die punch according to an embodiment of the present disclosure is shown.

[0022] Figure 6 Demonstrating an embodiment of this disclosure along Figure 5 The cross-sectional view obtained by section line B in the embodiment.

[0023] Figure 7 A schematic diagram of a die punch with a transition channel is shown in one embodiment of the present disclosure. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0025] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0026] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.

[0027] Furthermore, the terms "first" and "second" are used for illustrative 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 at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0028] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0029] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0030] While the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of features, steps, operations, elements, modules, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0031] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0032] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0033] In related technologies, waste generated during the stamping process often remains at or near the die opening, leading to waste accumulation. Because the waste cannot be discharged promptly and effectively, the residual waste may damage the workpiece during subsequent stamping processes, causing problems such as surface scratches or dents, severely affecting the product's appearance quality and performance.

[0034] To address the aforementioned issues, one embodiment of this disclosure provides a die punch, which includes at least one discharge channel extending axially along the punch body. Waste generated during the stamping process can enter the discharge channel and be guided to the outside, thus avoiding the impact of residual waste on subsequent stamping operations and reducing the risk of product surface being damaged by waste.

[0035] Please refer to this as well. Figures 1 to 3 In this embodiment, one end of the punch body 10 is provided with at least one punching die 101 that contacts the stamping material.

[0036] Specifically, in some embodiments, the blanking die 101 is used to obtain the target hole in the stamping material. In actual operation, it can be done as follows: Figures 1 to 3 The diagram shows multiple blanking dies 101 with different diameters to accommodate different stamping requirements.

[0037] In some embodiments, for blanking dies 101 with a diameter smaller than a specific size, a corresponding discharge channel 200 is provided, one end of which is connected to the blanking die 101, and the other end is connected to the external environment or an external discharge device, so that the stamping waste 201 generated during stamping can be discharged through the discharge channel 200. For blanking dies 101 with a larger diameter (e.g., ...), ... Figure 3 The waste material 201 generated by the punching die 101 in the middle position can fall directly onto the lower die plate due to its own weight, without needing to be discharged through the discharge channel 200.

[0038] Optionally, please refer to the following as well. Figure 4 as well as Figure 6 Example, wherein Figure 4 and Figure 6 These are discharge channels 200 corresponding to different blanking die openings 101. In order to temporarily capture and fix the scrap 201 in a specific position after it enters the discharge channel 200, and to prevent it from falling out of the discharge channel 200 due to gravity or other factors, the discharge channel 200 has at least a partial inner wall with an interference portion 210 for blocking the stamping scrap 201.

[0039] Optionally, the interference portion 210 is formed on the inner wall of the end of the discharge channel 200 facing the punching die opening 101. The inner diameter of a section at the lower end of the discharge channel 200 can be designed to be an interference portion 210 that is interference-fitted with the scrap material. Alternatively, a concave-convex structure can be provided on the inner wall of the discharge channel 200 as the interference portion 210. The interference portion 210 can create a jamming effect and increase friction when the scrap material 201 enters the discharge channel 200, preventing the scrap material from falling out of the discharge channel 200. This allows subsequently generated scrap material to continuously enter the discharge channel 200 without falling out, resulting in the scrap material being conveyed upwards along the discharge channel 200. Figure 4 as well as Figure 6 In this embodiment, the interference portion 210 includes a spiral structure disposed along the inner wall of the discharge channel 200. The spiral structure not only restricts the downward movement of waste material along the extension direction of the discharge channel 200, but also guides the waste material 201 deeper into the discharge channel 200 through its spiral upward guiding effect, reducing the risk of blockage. In some embodiments, the interference portion 210 and the waste material 201 can be configured with a size difference to achieve an interference fit. The inner diameter of the interference portion 210 in the discharge channel 200 should be slightly smaller than the maximum size of the waste material 201. During the stamping process, the generated waste material 201 enters the discharge channel 200 through the die opening 101. Due to the interference fit, the waste material 201 is slightly compressed and embedded in the interference portion 210 of the discharge channel 200. In some embodiments, the interference portion 210 may also be implemented as a tongue (not shown) covering one end of the discharge channel 200 facing the blanking die 101. The tongue is configured to be pushed open only upwards, allowing the scrap 201 to enter the discharge channel 200 from the blanking die 101, but preventing the scrap 201 from moving in the reverse direction. The length and width of the tongue should be designed according to the specific dimensions of the discharge channel 200 to ensure that it can completely cover the inlet of the discharge channel 200 and has sufficient room to move under pressure.

[0040] The tongue can be hinged at one end to the inner wall of the discharge channel 200, and the other end can be detachably abutted against the inner wall of the discharge channel. The tongue can be pushed upwards when subjected to pressure from the die opening 101, allowing the scrap 201 to smoothly enter the discharge channel 200; when no external force is applied, the tongue will naturally return to its original position and close the entrance to the discharge channel 200. The scrap 201 generated during the stamping process enters the discharge channel 200 through the die opening 101. Due to the presence of the tongue, the scrap 201 pushes the tongue upwards, smoothly entering the discharge channel 200. Once the scrap 201 passes through the tongue area, the tongue quickly returns to its original position due to gravity, re-closing the entrance to the discharge channel 200 and preventing the scrap 201 from moving backwards or falling off.

[0041] An elastic element (such as a coil spring, leaf spring, or other type of elastic element) can also be installed near the hinge point of the tongue to provide sufficient force so that the tongue can fit tightly against the inner wall of the discharge channel 200 when no external force is applied. The tongue setting method can be selected according to the actual use scenario.

[0042] Optionally, the end of the discharge channel 200 facing the blanking die 101 is matched in shape and size with the blanking die 101. This ensures that the scrap 201 can smoothly enter the discharge channel 200 one by one from the blanking die 101 in a horizontal position.

[0043] Optionally, in Figure 7 In this embodiment, the other end of the discharge channel 200 is connected to the transition channel 300. To reduce the impact of lubricating oil (stamping oil) on the waste material 201 during the discharge process and to ensure that the waste material 201 can be discharged smoothly and in a staggered manner, the transition channel 300 and the discharge channel 200 are inclined at a preset angle, so that the stamping waste material 201 can be discharged at an angle along the transition channel 300. Through the design of staggered arrangement and inclined angle, the contact area between the waste material 201 and the lubricating oil is reduced during the discharge process, reducing the adhesion of the lubricating oil, so that the waste material 201 can be staggered after entering the transition channel 300, avoiding accumulation or blockage, and ensuring smooth discharge. The inclination angle between the transition channel 300 and the discharge channel 200 can be adjusted according to actual application requirements.

[0044] Optionally, the end of the transition channel 300 furthest from the discharge channel 200 is connected to a discharge assembly. By connecting the end of the transition channel 300 to the discharge assembly, it is ensured that the waste material 201 can directly enter the discharge assembly for centralized processing after leaving the transition channel 300, reducing the time the waste material 201 remains inside the mold. In some embodiments, the discharge assembly can be designed to be easily disassembled and cleaned, facilitating regular cleaning of the waste material 201. In some embodiments, the end of the transition channel 300 furthest from the discharge channel 200 can also be connected to a storage space for storing the stamping waste material 201.

[0045] In some embodiments, the discharge assembly may be implemented as one of an air blowing mechanism, a suction mechanism, or a mechanical mechanism that moves waste.

[0046] As an example, the blowing mechanism propels waste in a designated direction by generating a high-speed airflow, ultimately discharging the waste from the equipment or processing area. In some embodiments, the airflow speed and direction can be adjusted according to the characteristics of the waste (such as size, shape, and weight), making it highly adaptable.

[0047] As an example, the suction mechanism can be implemented as a vacuum pump, connected via a pipe to one end of the discharge channel 200 away from the punching die opening 101, generating negative pressure to attract the waste material 201 into the discharge channel 200 and then suck it out. To better coordinate with the extraction function, the entrance of the discharge channel 200 can be designed in a funnel shape to increase the effective area for the waste material 201 to enter.

[0048] As an example, mechanical mechanisms that move waste material directly through physical contact. For instance, push rod devices use hydraulic or pneumatic push rods to move the waste material, pushing it out of the mold's working area through periodic push-pull actions. A rotating brush located at the outlet of the discharge channel 200, driven by a motor, sweeps the waste material away from the outlet. This method is effective for handling larger, heavier, or more viscous waste materials.

[0049] Optionally, in Figure 7 In this embodiment, to ensure precise alignment and stable connection between the punch body 10 and the discharge assembly, the die punch further includes at least one positioning element 110 disposed on the punch body 10 for positioning connection with the discharge assembly, so that the punch body 10 and the discharge assembly are mutually positioned and connected in a mating posture; wherein, in the mating posture, the discharge channel 200 and the transition channel 300 in the discharge assembly are aligned and connected. In some embodiments, the transition channel 300 may be implemented as a channel excavated in other entities. In other embodiments, the transition channel 300 may also be implemented as a separate pipe.

[0050] Specifically, the positioning element 110 also ensures a more robust and reliable connection between the punch body 10 and the discharge assembly, reducing misalignment caused by vibration or other external forces. Common forms of positioning elements 110 include pins, positioning blocks, and positioning grooves. The selection of a suitable positioning element 110 depends on the specific application requirements and mold structure. In some embodiments, the positioning element 110 is located at the outlet of the discharge channel 200 to facilitate alignment between the discharge channel 200 and the transition channel 300. The discharge assembly needs to be designed with corresponding mating structures (such as positioning holes, positioning grooves, etc.) to match the positioning element 110 on the punch body 10. These mating structures must provide sufficient precision and stability to support the alignment and connection of the discharge channel 200 and the transition channel 300.

[0051] In another embodiment of this disclosure, a stripping device is provided, comprising the aforementioned die punch. The stripping device can be implemented as a stripping plate with the die punch. In some embodiments, the stripping device can also be implemented as an upper die with a die punch. In some embodiments, the stripping device can further be implemented as an upper die comprising a stripping plate with a die punch.

[0052] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the protection scope of this disclosure.

Claims

1. A die punch, characterized in that, include: The punch body has at least one blanking die opening at one end that contacts the stamping material; At least one discharge channel is disposed through the punch body along the axial direction of the punch body, and one end is connected to the blanking die opening so that the stamping waste generated during stamping can be discharged through the discharge channel.

2. The die punch according to claim 1, characterized in that, The other end of the discharge channel is connected to the transition channel, and the transition channel and the discharge channel are inclined at a preset angle so that the stamping waste is discharged at an incline along the transition channel.

3. The die punch according to claim 2, characterized in that, The end of the transition channel away from the discharge channel is connected to the discharge assembly; or, the end of the transition channel away from the discharge channel is connected to a storage space for storing the stamping waste.

4. The die punch according to claim 1, characterized in that, A tongue is provided at one end of the discharge channel facing the die opening, and the tongue is configured to be pushed open only upwards.

5. The die punch according to claim 4, characterized in that, One end of the tongue is hinged to the inner wall of the discharge channel, and the other end is detachably abutted against the inner wall of the discharge pipe; and / or, the tongue is connected to an elastic element that provides a reset for returning it to its pushed-open state.

6. The die punch according to claim 1, characterized in that, The discharge channel has at least a portion of its inner wall with an interference section for blocking the stamping waste.

7. The die punch according to claim 6, characterized in that, The interference portion includes a spiral structure disposed along the inner wall of the discharge channel; and / or, the interference portion is interference-fitted with the stamping scrap; and / or, the interference portion is formed on the inner wall of the end of the discharge channel facing the blanking die opening.

8. The die punch according to claim 6, characterized in that, The end of the material discharge channel facing the blanking die orifice matches the shape and size of the blanking die orifice.

9. The die punch according to claim 1 or 2, characterized in that, Also includes: At least one positioning element is provided on the punch body for positioning connection with the discharge assembly so that the punch body and the discharge assembly are mutually positioned and connected in a mating posture; wherein, in the mating posture, the discharge channel and the transition channel in the discharge assembly are aligned and connected.

10. A material unloading device, characterized in that, Includes the die punch as described in any one of claims 1-9.

Images