Continuous stamping die material strip cutting mechanism
By using symmetrical cutting edge components and a closed cutting area design, combined with a detachable insert structure, the strip and product are separated efficiently, solving the problems of low strip cutting efficiency and difficult maintenance in continuous stamping dies, and improving production efficiency and die adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-31
AI Technical Summary
Existing continuous stamping dies have low strip cutting efficiency, high maintenance costs, and traditional cutting edge components suffer from severe wear and are difficult to replace.
It adopts a symmetrical blade assembly and closed cutting area design, combined with a detachable insert structure, to achieve one-time separation of the material strip and the product. The waste material is guided out by a double drop chute design and a ramp pad to avoid blockage.
It significantly shortens processing cycle time, reduces maintenance costs, improves mold compatibility and production efficiency, and adapts to different strip thicknesses or product shapes.
Smart Images
Figure CN224058492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, and in particular to a continuous stamping die strip cutting mechanism. Background Technology
[0002] Continuous stamping dies, as key equipment for efficient, high-volume production in modern manufacturing, are widely used in the machining of precision parts in the automotive, electronics, and home appliance industries. Their core advantage lies in the ability to complete multiple processes (such as punching, forming, and cutting) within a single die through continuous strip feeding, significantly improving production efficiency and product consistency. However, the separation and cutting process between the strip and the formed product during continuous stamping has always been one of the technical challenges.
[0003] In existing technologies, strip cutting is typically performed using single-sided or step-by-step punching. This design has the following problems: First, step-by-step punching leads to a longer processing cycle and reduced efficiency; second, the extended portion of the strip needs to be cut off by a cutter located on the outside of the mold, which affects the subsequent addition of engineering molds; in addition, traditional cutting edge components are mostly fixed structures, and the cutting edges wear out severely after long-term use, while replacing the entire cutting edge is costly and time-consuming, increasing maintenance difficulty.
[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a continuous stamping die strip cutting mechanism to solve the above problems.
[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content
[0006] To overcome the shortcomings of the prior art, the present invention discloses a continuous stamping die strip cutting mechanism, which solves the problems of low efficiency and difficult maintenance in the prior art through symmetrical cutting edge components, closed cutting area and detachable insert structure.
[0007] This utility model discloses a continuous stamping die strip cutting mechanism, including an upper stamping die and a lower stamping die; the lower stamping die is symmetrically provided with cutting edge assemblies on both sides of the product forming area, and the cutting edge assemblies include:
[0008] The first cutting edge corresponding to the bridge connecting the material strip and the product is used to cut off the connection between the product and the material strip;
[0009] The second punching blade, corresponding to the front strip of the connecting bridge, is used to cut off the connection between the connecting bridge and the front strip, and to reserve an extension for the front strip.
[0010] The third cutting edge, corresponding to the rear strip of the connecting bridge, is used to cut off the connection between the connecting bridge and the extension of the rear strip.
[0011] During continuous punching operations, the material strip moves from the front side of the connecting bridge to the rear side of the connecting bridge;
[0012] The first, second, and third punching blades together form a closed cutting area. A first blanking groove is provided in this area, which passes through the lower die of the stamping process, and is used to discharge the material from the die by the connecting bridge of the feed belt.
[0013] The rear side of the third cutting edge is provided with a second blanking groove that penetrates the lower die for discharging the extended portion of the rear strip from the die; the upper die is provided with a punch that matches the first, second, and third cutting edges.
[0014] Preferred technical solution: A ramp pad is provided between the third cutting edge and the second material drop chute. The top surface of the ramp pad is inclined from the side near the third cutting edge to the side of the second material drop chute, so as to facilitate the sliding of the rear material strip extension to the second material drop chute.
[0015] Preferred technical solution: The inclination angle of the ramp pad is 15°~60°.
[0016] Preferred technical solution: The first punching blade, the second punching blade, the third punching blade, the ramp pad and the punching punch are all detachable insert structures, which are convenient for maintenance and replacement, and can be replaced according to different material strips to improve compatibility.
[0017] Preferred technical solution: The projection of the punch is located inside the contour of the area enclosed by the first, second and third punching blades, so that the punch can push the cut material strip into the first drop chute and avoid the cut material strip from blocking the first drop chute.
[0018] Preferred technical solution: The minimum distance between the second and third punching blades is less than the stepping distance of the strip during continuous punching, thus avoiding increasing the mold length.
[0019] Preferred technical solution: The bottom of the first and second material discharge troughs is connected to the waste collection channel outside the mold.
[0020] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:
[0021] 1) By using the closed cutting area formed by the first, second and third punching blades, combined with the punching punch, the strip and the product can be separated in one go, avoiding the multi-process operation of traditional step-by-step punching and significantly shortening the processing cycle.
[0022] 2) The symmetrically arranged cutting edge components are located on both sides of the product forming area, avoiding interference from the traditional outer cutting edge to the subsequent engineering mold additions, and providing space for mold function expansion.
[0023] 3) The projection of the punch is strictly located inside the closed cutting area to precisely control the cutting range and avoid the cut material strip from blocking the first drop chute.
[0024] 4) The blade assembly, ramp pad, and punch all adopt a detachable insert structure, which can be replaced individually when there is local wear, without the need to replace the entire mold, greatly reducing maintenance costs and time; at the same time, the detachable design supports quick adjustment of the blade configuration to adapt to different material strip thicknesses or product shapes, improving the versatility of the mold.
[0025] 5) The strip is cut into three sections by three cutting edges, and the two waste materials fall out of the mold through the double drop groove design: the former directly discharges the cut waste material, and the latter, together with the inclined pad block, guides the residual strip material on the rear side to slide out, avoiding the accumulation of waste material. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a front view of a continuous stamping die strip cutting mechanism according to the present invention;
[0028] Figure 2 This is a top view of a continuous stamping die strip cutting mechanism according to the present invention.
[0029] In the attached diagrams above, 1. Upper stamping die; 11. Punching punch; 2. Lower stamping die; 21. First punching cutter; 22. Second punching cutter; 23. Third punching cutter; 24. First blanking groove; 25. Second blanking groove; 26. Sloping pad; 3. Material strip; 4. Product. Detailed Implementation
[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the description of embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0033] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0034] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0036] Example:
[0037] like Figure 1 and Figure 2As shown, this utility model discloses a continuous stamping die strip cutting mechanism, including an upper stamping die 1 and a lower stamping die 2. The two are precisely aligned through a guide post and guide sleeve structure. The main components of this utility model will be described in detail below:
[0038] The lower die 2 has symmetrical cutting edge assemblies on both sides of the product forming area. Each cutting edge assembly consists of a first cutting edge 21, a second cutting edge 22, and a third cutting edge 23, which together form a closed cutting area. Inside the closed cutting area, there is a first blanking groove 24 that penetrates the lower die 2 for discharging the cut strip connecting bridge portion. A second blanking groove 25 is provided on the rear side of the third cutting edge 23 for discharging the waste material of the extended portion of the strip. The upper die 1 is equipped with a punching punch 11 that matches the cutting edge assembly at the corresponding position, and the punching action is completed by the pressure when the upper and lower dies are closed.
[0039] In addition, a ramp block 26 is provided between the third cutting edge 23 and the second blanking groove 25, the top surface of which guides the waste material to slide into the second blanking groove at an inclination angle of 45°. All cutting edge components, ramp blocks and cutting punches adopt a detachable insert structure and are fixed to the mold base with screws for easy quick replacement and maintenance.
[0040] Reference image and Figure 2 As shown, the usage method and principle of this utility model are as follows: During continuous stamping, the strip 3 is conveyed stepwise from the front to the rear along the connecting bridge. When the strip enters the closed cutting area, the upper stamping die 1 moves downward, and the punching punch 11 cooperates with the cutting edge assembly to complete the following actions:
[0041] The first cutting edge 21 cuts off the connecting bridge: the main connection between product 4 and material belt 3 is cut off, and the product is separated from the material belt.
[0042] The second cutting edge 22 cuts off the front strip: retains the extended part of the front strip to ensure the continuity of feeding at subsequent stations.
[0043] The third cutting edge 23 cuts off the rear material strip: the residual material strip is completely separated, and the waste is guided by the inclined pad block 26 to slide into the second drop chute 25.
[0044] The three-stage cutting action is completed simultaneously in one mold closing. The cut waste material is discharged through the first discharge groove 24 and the second discharge groove 25 respectively, achieving efficient and residue-free material strip separation.
[0045] like Figure 1 and Figure 2 As shown, the projections of the punching punch 11 are all located inside the outline of the area enclosed by the first punching cutter 21, the second punching cutter 22 and the third punching cutter 23, so that the punching punch 11 can push the cut waste material into the first discharge chute 24 to avoid waste material blockage.
[0046] like Figure 1 and Figure 2 As shown, the minimum distance between the second cutting edge 22 and the third cutting edge 23 is less than the stepping distance of the strip during continuous stamping, thus reducing the impact on the mold size.
[0047] like Figure 1 and Figure 2 As shown, the bottoms of the first discharge chute 24 and the second discharge chute 25 are connected to the waste collection channel outside the mold.
[0048] This invention solves the industry problems of low strip cutting efficiency and high maintenance costs in continuous stamping through the coordinated design of a closed cutting area, double drop grooves, and a detachable insert structure. This mechanism has significant advantages in improving production efficiency, reducing maintenance costs, and enhancing mold compatibility, and is suitable for mass production of precision parts in the automotive, electronics, and other fields.
[0049] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A continuous stamping die strip cutting mechanism, comprising a stamping upper die (1) and a stamping lower die (2), characterized in that: the stamping lower die (2) is symmetrically provided with a knife edge assembly on both sides of the product forming area, the knife edge assembly comprising: a first cutting knife edge (21) corresponding to the strip and the product connecting bridge; a second cutting knife edge (22) corresponding to the front side strip of the connecting bridge; a third cutting knife edge (23) corresponding to the rear side strip of the connecting bridge; the first cutting knife edge (21), the second cutting knife edge (22) and the third cutting knife edge (23) together form a closed cutting area, and a first blanking groove (24) penetrating through the stamping lower die (2) is arranged in the closed cutting area; the rear side of the third cutting knife edge (23) is provided with a second blanking groove (25) penetrating through the stamping lower die (2); the stamping upper die (1) is provided with a cutting punch (11) matched with the first cutting knife edge (21), the second cutting knife edge (22) and the third cutting knife edge (23).
2. A continuous punch and die strip cut-off mechanism according to claim 1 wherein: a slope pad (26) is arranged between the third cutting knife edge (23) and the second blanking groove (25), and the top surface of the slope pad (26) is inclined from the side close to the third cutting knife edge (23) to the side of the second blanking groove (25).
3. A continuous punch and die strip cut-off mechanism according to claim 2 wherein: The inclination angle of the slope pad (26) is 15°-60°.
4. A continuous punch and die strip cut-off mechanism according to claim 1 wherein: The first cutting knife edge (21), the second cutting knife edge (22), the third cutting knife edge (23), the slope pad (26) and the cutting punch (11) are all detachable insert block structures.
5. A continuous punch and die strip cut-off mechanism as defined in claim 1 wherein: The projection of the cutting punch (11) is located inside the contour of the enclosed area of the first cutting knife edge (21), the second cutting knife edge (22) and the third cutting knife edge (23).
6. A continuous punch and die strip cut-off mechanism as defined in claim 1 wherein: The minimum distance between the second cutting knife edge (22) and the third cutting knife edge (23) is less than the step distance of the strip during continuous stamping.
7. A continuous punch and die strip cut-off mechanism as defined in claim 1 wherein: The bottoms of the first blanking groove (24) and the second blanking groove (25) are connected to a waste collecting channel outside the die.