A die cutting mold

Abstract

The application discloses a punching die, which comprises a bottom plate, a material limiting part provided on the bottom plate, a cutting material opening provided on the side of the material limiting part away from the bottom plate, an edge part provided on the inner side wall of the cutting material opening, a driving part provided on the side of the bottom plate opposite to the material limiting part, a punching cutter die provided on the side of the driving part facing the bottom plate, a pressing plate and a cutter die part of the punching cutter die, the pressing plate being installed on the side of the driving part facing the bottom plate, and the cutter die part being installed on the side of the pressing plate facing the bottom plate. The annular closed blade of the cutter die part is matched with the edge part of the cutting material opening, and the punching die has the tearing and shearing effects, solves the problem of many burrs of the ordinary punching die, and improves the appearance quality of the product. The clamping part of the pressing plate is matched with the edge part, the elastic element is used to drive the pre-pressing material before punching, and the punching position deviation or profile deformation caused by the material displacement is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical equipment, and in particular to a punching die. BACKGROUND

[0002] In modern industrial production, the punching die as a key equipment to realize material separation and forming is widely used in many fields such as electronics, automobiles, packaging, etc.; its core function is to exert a strong external force in an instant to promote the material to be cut or torn apart along the predetermined contour line, so as to obtain products or parts meeting specific shape requirements.

[0003] At present, driven by the dual needs of product appearance quality standard improvement and strict cost control, the traditional punching die exposes many drawbacks to be solved; ordinary punching dies mostly use tearing separation process, which makes the product edge after punching produce a large amount of burrs, and it is difficult to meet the production needs of products with high appearance quality requirements, such as high-end electronic product shells, precision instrument parts, etc. These products are not only affected in appearance, but also may cause assembly failure in subsequent assembly process, reducing the overall performance and reliability of the products.

[0004] The one-way knife die improves the punching quality to some extent, but in order to prolong the service life of the knife die, paper sheets or other consumables need to be placed under the material before punching, and one sheet is consumed after each punching, which undoubtedly significantly increases the material cost; especially for large-scale production enterprises, the long-term cumulative cost of consumables cannot be ignored, which seriously compresses the profit space of the enterprise.

[0005] The ordinary opposite shearing die is because the two-way knife die is easy to collide during punching, which causes the knife die to wear out and the service life to be greatly shortened; frequent replacement of the knife die not only increases the equipment maintenance cost, but also causes the equipment downtime to be prolonged, the production efficiency to be greatly reduced, and the production progress and capacity improvement of the enterprise to be seriously restricted.

[0006] In summary, the existing punching die technology has obvious deficiencies in product appearance quality, cost control and equipment stability, etc., and it is difficult to meet the urgent needs of efficient, high-quality and low-cost production in the current market.

[0007] Therefore, a punching die is proposed to solve the above problems. SUMMARY

[0008] The purpose of the present application is to propose a punching die to solve the above problems

[0009] To solve the problem that the product edge burrs are too many caused by the tear separation mode of the ordinary die in the prior art, the appearance quality cannot be met, the single-way knife die uses consumables to protect the service life of the knife die, and the production cost is increased, and the problem that the double-way knife die in the ordinary shearing die is easy to collide in the punching process, the service life of the knife die is short, and the knife die needs to be frequently replaced.

[0010] To achieve this purpose, the following technical solutions are adopted in the present application:

[0011] A punching die comprises a bottom plate;

[0012] A material limiting part is arranged on the bottom plate, and a cutting port is arranged on the side of the material limiting part away from the bottom plate, and an edge part is arranged on the inner side wall of the cutting port;

[0013] A driving part is arranged on the side of the bottom plate opposite to the side of the bottom plate provided with the material limiting part, and a punching knife die is arranged on the side of the driving part facing the bottom plate; the punching knife die comprises a pressing plate and a knife die part, the pressing plate is arranged on the side of the driving part facing the bottom plate, the knife die part is arranged on the side of the pressing plate facing the bottom plate, and the side of the knife die part facing the bottom plate is provided with a knife edge in a ring-shaped closed structure.

[0014] Optionally, the material limiting part comprises a lower plate, a material dropping port, a carrier, and a mold passing port.

[0015] The lower plate is arranged on the side of the bottom plate facing the driving part, the material dropping port is arranged on the side of the lower plate facing the driving part, and the edge part is the peripheral part of the lower plate close to the material dropping port.

[0016] The carrier is arranged on the side of the lower plate facing the driving part, the mold passing port is arranged on the side of the carrier facing the driving part, the size of the mold passing port is larger than that of the material dropping port, and the mold passing port leaks the edge part on the lower plate; the knife die part can pass through the edge part.

[0017] The material dropping port and the mold passing port constitute the cutting port.

[0018] Optionally, the pressing plate is provided with an expansion port penetrating through the pressing plate, the side of the pressing plate close to the bottom plate is provided with a clamping part surrounding the expansion port, and the clamping part corresponds to the edge part; a driving structure is arranged between the driving part and the pressing plate, the driving structure is connected with the driving part, the driving structure is provided with a connecting port penetrating through the driving structure, an elastic member penetrating through the connecting port is arranged between the driving part and the pressing plate; the side of the knife die part close to the bottom plate is located in the space surrounded by the clamping part, and the end of the knife die part away from the bottom plate penetrates through the expansion port and is connected with the driving structure.

[0019] Optionally, the pressing plate is provided with a shaft sleeve, the driving structure is provided with a positioning column, one end of the positioning column passes through the shaft sleeve, the positioning column is in sliding connection with the shaft sleeve, a limiting passage corresponding to the positioning column is formed in the side of the lower plate away from the bottom plate, and the carrier is provided with an avoiding opening corresponding to the limiting passage.

[0020] Optionally, the bottom plate is provided with a raised plate located in the material dropping opening, a placing groove is formed in the side of the raised plate away from the bottom plate, a placing opening is formed in the side of the raised plate away from the bottom plate, the placing groove and the placing opening are in communication and form an installation space, and the installation space is internally provided with the ejection structure.

[0021] Optionally, the raised plate is provided with a material stripping plate located in the material dropping opening.

[0022] Optionally, the side of the carrier away from the bottom plate is provided with a positioning hole, and the side of the lower plate away from the bottom plate is provided with a positioning protrusion extending into the positioning hole.

[0023] Optionally, the side of the bottom plate away from the driving part is provided with a static limiting seat, and the side of the driving part away from the bottom plate is provided with a dynamic limiting seat.

[0024] Optionally, a guide column assembly for buffering the driving part is arranged between the bottom plate and the driving part.

[0025] Optionally, the guide column assembly comprises a guide column, a guide sleeve, a limiting part, a steel ball bushing, a spring and a stopper, the guide column is arranged on the side of the bottom plate facing the driving part, the limiting part is arranged on the outer circumferential surface of the guide column, the steel ball bushing is slidably sleeved on the guide column, the limiting part is closer to the bottom plate than the steel ball bushing, the spring is sleeved on the guide column, the two ends of the spring are connected with the limiting part and the steel ball bushing respectively, the end of the guide column away from the bottom plate is provided with the stopper, the stopper is used for preventing the steel ball bushing from being pushed out of the guide column by the elastic force of the spring, and the length of the stopper is between the outer diameter and the inner diameter of the steel ball bushing, the guide sleeve is arranged on the side of the driving part away from the bottom plate, the steel ball bushing corresponds to and is matched with the guide sleeve.

[0026] Compared with the prior art, the application has the following advantages:

[0027] 1. The annular closed blade of the die part cooperates with the edge part of the material cutting opening, has tearing and shearing effects, solves the problem of many burrs of ordinary dies, and improves the appearance quality of products.

[0028] 2. The clamping part of the pressure plate cooperates with the edge part, and the pre-pressing material is driven by the elastic member before punching to avoid the punching position deviation or profile deformation caused by material displacement, thereby ensuring the punching precision.

[0029] 3. The multiple guidance of the alignment column, the shaft sleeve and the limiting channel, and the cooperation of the alignment block and the alignment hole ensure the consistent punching position of the carrier and the die part each time.

[0030] 4. The anti-reverse design of the left limiting block and the right limiting block avoids the product scrap caused by the reverse placement of the carrier or the material, greatly reduces the defective rate, and improves the product qualification rate. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings further illustrate the present application, but the content of the drawings does not constitute any limitation on the present application.

[0032] Figure 1 is a structural schematic diagram of the punching state of the present application;

[0033] Figure 2 is a structural schematic diagram of the to-be-punched state of the present application;

[0034] Figure 3 is an overall structural exploded view of the present application;

[0035] Figure 4 is a structural schematic diagram of the die part and the blade of the present application;

[0036] Figure 5 is a sectional view of the present application in the A direction; Figure 1

[0037] Figure 6 is an enlarged view of the present application at B; Figure 5

[0038] Figure 7 is a structural schematic diagram of the bottom plate, the material limiting part, the mounting space, the alignment hole, the alignment block, the left limiting block, the right limiting block, the left limiting port and the right limiting port of the present application;

[0039] Figure 8 is a structural schematic diagram of the bottom plate, the material limiting part, the heightening plate, the edge part and the ejection structure of the present application;

[0040] Figure 9 is a structural schematic diagram of the pressure plate, the telescopic port and the clamping part of the present application.

[0041] ​​In the drawings: 1, bottom plate; 2, material limiting part; 21, lower plate; 22, material dropping opening; 23, carrier; 24, mold passing opening; 31, cutting opening; 32, edge part; 4, driving part; 5, die cutting die; 51, pressing plate; 52, die part; 521, blade edge; 61, telescopic opening; 62, clamping part; 63, driving structure; 64, connecting opening; 65, elastic member; 71, static limiting seat; 72, dynamic limiting seat; 8, guide column assembly; 81, guide column; 82, guide sleeve; 83, limiting part; 84, steel ball bushing; 85, spring; 86, stop block; 91, heightening plate; 92, mounting space; 921, placing groove; 922, placing opening; 93, ejection structure; 10, material stripping plate; 111, shaft sleeve; 112, alignment column; 113, limiting channel; 114, avoiding opening; 121, alignment hole; 122, alignment protrusion; 131, left limiting block; 132, right limiting block; 133, left limiting opening; 134, right limiting opening; 14, product. DETAILED DESCRIPTION

[0042] Embodiments of the present application are described in detail below with reference to the attached drawings, which show, by way of example, specific embodiments. The embodiments described below are examples for explaining the present application and are not intended to limit the present application. In the description of the present application, it is to 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", and the like indicate the orientation or positional relationship shown in the drawings, and are merely used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application. In addition, the terms "first", "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0046] In this embodiment, by Figures 1-9 A punching die is provided, comprising a base plate 1, a material limiting part 2, and a driving part 4;

[0047] The core function of a punching die is to separate material; that is, to cut or tear the material along a defined contour line under instantaneous strong force. During the punching process, to ensure the material does not shift, structures are needed to provide support and restraint for the material.

[0048] Specifically, the material limiting part 2 is disposed on the base plate 1, and a cutting opening 31 is provided on the side of the material limiting part 2 away from the base plate 1. An edge part 32 is provided on the inner side wall of the cutting opening 31. The edge part 32 is a raised edge that protrudes from the inner side wall of the cutting opening 31 and surrounds the inner side wall of the cutting opening 31. The material to be punched can be placed on the edge part 32. At this time, the material is located inside the cutting opening 31, and the material is limited by the inner side wall of the cutting opening 31 and will not shift.

[0049] Currently, for some products with high appearance requirements and cost control considerations, ordinary punching dies mainly use tearing separation, resulting in numerous burrs and failing to solve the appearance burr problem. Using unidirectional dies requires consumables to protect their lifespan; these consumables refer to materials, such as paper sheets, that need to be placed under the material before punching, typically wasting one sheet per punching, thus increasing costs. Ordinary counter-current shearing, on the other hand, results in short die lifespans due to the collision of bidirectional dies during punching, necessitating frequent die replacements.

[0050] Among them, ordinary punching dies rely on the pressure generated by the closing of the upper and lower dies to achieve separation by tearing the material. They do not require complex auxiliary structures and can directly complete the punching process. The core is "pressure tearing separation".

[0051] Unidirectional die cutting: Only one side of the die actively punches. Before punching, paper or other consumables need to be placed under the material to cushion and protect the die cutting edge, preventing the die from directly contacting the punching platform and being damaged. The core is "unidirectional punching + consumable protection".

[0052] Ordinary opposing shearing: Separation is achieved by applying shearing force from both sides of the material simultaneously through the bidirectional opposing movement of two sets of upper and lower die dies. However, since the bidirectional die dies are prone to direct collision at the end of the punching process, the core is "bidirectional opposing force shearing".

[0053] Based on the above, the drive unit 4 and the base plate 1 are arranged opposite to each other on the side with the limiting part 2. The drive unit 4 is provided with a punching die 5 on the side facing the base plate 1. The punching die 5 includes a pressure plate 51 and a die part 52. The pressure plate 51 is installed on the side of the drive unit 4 facing the base plate 1, and the die part 52 is installed on the side of the pressure plate 51 facing the base plate 1. The side of the die part 52 facing the base plate 1 has a blade 521. The blade 521 has a ring-shaped closed structure, and the blade 521 is integrally formed along the edge of the die part 52.

[0054] Specifically, the die-cutting die 5 is driven by the driving part 4 to move towards the material limiting part 2, at this time, the die part 52 on the die-cutting die 5 can punch the material on the edge part 32, and pass through the edge part 32, at the same time, the annular closed structure blade 521 on the die part 52 can cut the material, so that the tearing separation effect of the ordinary die, the shearing effect of the one-way die and the ordinary opposite shearing are realized, and the blade 521 on the die part 52 only contacts the material and does not collide with the edge part 32.

[0055] Referring to Figure 3 and Figure 4 , in summary, when the die-cutting die works, the driving part 4 drives the die-cutting die 5 to move towards the bottom plate 1, the blade 521 on the die-cutting die 5 first contacts the material, and as the driving part 4 continues to press down, the annular closed structure blade 521 on the die part 52 cuts into the material, the integrated continuous cutting edge of the blade 521 cooperates with the edge part 32 of the inner side wall of the cutting port 31 to generate a shearing force, realizing tearing and shearing at the same time, and the tearing separation effect of the ordinary die, the shearing effect of the one-way die and the ordinary opposite shearing are realized, and the blade 521 only contacts the material and does not collide with the edge part 32, solving the problems of the ordinary die, the one-way die and the ordinary opposite shearing die.

[0056] In the above, the material is placed on the edge part 32 of the inner side wall of the cutting port 31, and after each die-cutting, the die-cutting product 14, the edge material and the new material need to be placed on the edge part 32, therefore, in order to avoid the material placed on the edge part 32 being skewed and to facilitate the taking out of the product 14 and the edge material, a separable or detachable limiting structure, that is, the aforementioned material limiting part 2, is needed.

[0057] Specifically, referring to Figure 3 and Figure 4 , the material limiting part 2 includes a lower plate 21, a material dropping port 22, a carrier 23 and a die passing port 24; the lower plate 21 is arranged on the side of the bottom plate 1 facing the driving part 4, the material dropping port 22 is opened on the side of the lower plate 21 facing the driving part 4; the carrier 23 is placed on the side of the lower plate 21 facing the driving part 4, and the die passing port 24 is opened on the side of the carrier 23 facing the driving part 4, the size of the die passing port 24 is larger than that of the material dropping port 22, and the die passing port 24 leaks the peripheral part of the lower plate 21 close to the material dropping port 22, thereby forming the edge part 32; the die part 52 can pass through the edge part 32; the material dropping port 22 and the die passing port 24 constitute the cutting port 31.

[0058] In this embodiment, the material to be punched is placed on the edge portion 32 of the lower plate 21 exposed by the die hole 24 of the carrier 23. The inside wall of the cutting port 31 formed by the drop port 22 and the die hole 24 limits the material and prevents it from shifting. The driving portion 4 drives the punching die 5 to move towards the material limiting portion 2. The die portion 52 of the punching die 5 passes through the die hole 24 to punch the material on the edge portion 32. The annular closed blade 521 of the die portion 52 cuts the material to form the product 14 and the edge material. After the punching is completed, the product 14 can fall through the drop port 22, and the edge material will be placed on the edge portion 32. When the operator takes out the material, the carrier 23 can be taken out in advance, thereby facilitating the taking out of the product 14 and the edge material.

[0059] In addition, when the material is punched, the blade 521 will act on the material with a large impact force. If the material is not fixed, the impact force will cause the plate to shift horizontally or vertically, resulting in a shift in the punching position or a deformation of the contour.

[0060] Referring to FIGS. 1-3, Figure 3 Figure 4 and Figure 9 To solve the above problems, in this embodiment, the pressing plate 51 is provided with a retractable opening 61 that penetrates through the pressing plate 51. The opening of the retractable opening 61 faces the bottom plate 1. The side of the pressing plate 51 close to the bottom plate 1 is provided with a clamping portion 62 that surrounds the retractable opening 61. The clamping portion 62 can be multi-segmented or annularly closed. Based on the angle of the clamping effect, the clamping portion 62 is preferably annularly closed, and the clamping portion 62 corresponds to the edge portion 32. A driving structure 63 is provided between the driving portion 4 and the pressing plate 51. The driving structure 63 is connected to the driving portion 4. The driving structure 63 is provided with a connecting opening 64 that penetrates through the driving structure 63. The connecting opening 64 is a straight opening as a whole, and the opening of the connecting opening 64 faces the bottom plate 1. An elastic member 65 is installed between the driving portion 4 and the pressing plate 51 and penetrates through the connecting opening 64. The side of the die portion 52 close to the bottom plate 1 is located in the space surrounded by the clamping portion 62. The end of the die portion 52 away from the bottom plate 1 penetrates through the retractable opening 61 and is connected to the driving structure 63.

[0061] ​In this embodiment, during the punching process, when the driving part 4 moves downward, the die part 52 on the punching die 5 will be driven by the driving structure 63 to move towards the base plate 1. At the same time, due to the elastic member 65 arranged between the driving part 4 and the pressure plate 51, the pressure plate 51 will move away from the driving part 4 under the elastic force of the elastic member 65 without punching, and the clamping part 62 will cover the die part 52 and the blade 521. Before the die part 52 contacts the material, the pressure plate 51 will first move towards the base plate 1 under the action of the elastic member 65, so that the clamping part 62 on the pressure plate 51 cooperates with the edge part 32 of the base plate 1 to clamp the edge of the material to be punched, avoiding the transverse or longitudinal displacement of the material in the subsequent punching process. With the continuous action of the driving part 4, the elastic member 65 is compressed, the die part 52 continues to move downward through the telescopic opening 61 of the pressure plate 51 to punch the clamped and fixed material. At this time, since the material has been stably clamped by the clamping part 62 and the edge part 32, the punching position deviation and profile deformation can be effectively prevented, and the punching precision can be ensured. After the punching is completed, the driving part 4 moves upward, the driving part 4 drives the driving structure 63 and the die part 52 to reset, the elastic member 65 returns to the original state, and the pressure plate 51 is pushed to reset, so that the clamping part 62 is separated from the edge part 32, and the processed material can be taken out conveniently. The whole process is cooperated by the pre-pressing and clamping of the pressure plate 51 and the punching action of the die part 52, which not only realizes the reliable fixation of the material and solves the processing defect problem caused by the displacement of the material, but also makes the pressing and punching actions coherent and coordinated through the arrangement of the elastic member 65, improves the stability and efficiency of the punching process, and the structure design that the clamping part 62 surrounds the telescopic opening 61 can form a surrounding constraint on the material during the punching of the die part 52, which further improves the reliability of the material fixation, reduces the generation of punching burrs, wrinkles and other adverse phenomena, and improves the product 14 quality.

[0062] The elastic member 65 can be selected from a spring and a plastic elastic block. This is because, when the clamping part 62 on the pressure plate 51 abuts against the material during punching, the driving part 4 needs to drive the driving structure 63, the die part 52 and the blade 521 to punch the material for a long distance, so as to ensure the smoothness of the material cut. The deformation amplitude of the spring is better than that of the plastic elastic block. In addition, the spring can stably push the pressure plate 51 to press the material, the elastic force is uniform and cannot be too loose or too tight, so as to ensure the fixation of the material. Furthermore, the spring is compressed during the die punching, and can quickly return to reset the pressure plate 51 after punching, which is fast in response and durable. By replacing the spring with different stiffness, different materials can be adapted, which is more flexible and reliable than the plastic elastic block. Therefore, the spring is preferred.

[0063] Based on the foregoing, after the material on the edge part 32 is punched by the blade 521 on the die part 52, the material is processed into the product 14. In order to avoid the product 14 from being damaged or stuck in the cutting port 31 during the falling process, a telescopic material receiving structure needs to be added.

[0064] Specifically, referring to Figure 7 and Figure 8 As shown, the bottom plate 1 is provided with a raised plate 91 inside the material dropping opening 22, and the side of the bottom plate 1 opposite the raised plate 91 is provided with a placing groove 921 and a placing opening 922, the placing groove 921 and the placing opening 922 are communicated to form an installation space 92, and the inside of the installation space 92 is provided with an ejection structure 93. The ejection structure 93 can be a telescopic structure of a pneumatic cylinder or an electric push rod. During the punching process, after the cutting edge 521 of the die part 52 completes the punching of the material on the edge part 32, the finished product 14 will fall at the material dropping opening 22, at this time, the ejection structure 93 installed in the installation space 92 formed by the communication of the placing groove 921 of the bottom plate 1 and the placing opening 922 of the raised plate 91 will play a role, the ejection structure 93 can timely support the product 14 after the product 14 is formed, and the ejection structure 93 can also push the product 14 out of the material dropping opening 22, thereby avoiding the product 14 from falling directly from a higher position and being damaged, and enhancing the effects of anti-sticking and buffer protection.

[0065] In addition, considering that the contact area of the ejection structure 93, whether it is a pneumatic cylinder or an electric push rod, with the product 14 is relatively small, it is easy to cause the product 14 to be unevenly stressed and tilted, deformed or even damaged during the pushing process, the raised plate 91 is provided with a material stripping plate 10 inside the material dropping opening 22, the material stripping plate 10 can be connected with the telescopic end of the ejection structure 93, and the material stripping plate 10 can form a large-area contact with the product 14. When the ejection structure 93 acts, the telescopic end will first act on the material stripping plate 10, and then the material stripping plate 10 will uniformly transmit the force to the product 14, which not only avoids damage to the product 14 caused by excessive local stress, but also more stably lifts or pushes the product 14 out of the material dropping opening 22. At the same time, the cooperation of the material stripping plate 10 and the raised plate 91 can also form a certain supporting action on the product 14, further reducing the probability of the product 14 deviating or being stuck in the material dropping opening 22, ensuring that the product 14 maintains a stable posture during the ejection process and smoothly separates from the material dropping opening 22. It not only improves the protection effect of the product 14, but also enhances the reliability of the ejection action, making the whole punching and material taking process more smooth, effectively improving the production efficiency and the product 14 qualification rate.

[0066] In order to ensure that the position of the cutting edge 521 punching the material does not deviate during the punching process, and to reduce the rate of defective products, it is necessary to add a guide structure for limiting the movement direction of the cutting edge 521.

[0067] Specifically, referring to Figure 3 and Figure 7As shown, the pressure plate 51 is provided with a shaft sleeve 111, the driving structure 63 is installed with a positioning column 112, one end of the positioning column 112 penetrates through the shaft sleeve 111, the positioning column 112 is in sliding connection with the shaft sleeve 111, the lower plate 21 is provided with a limiting passage 113 corresponding to the positioning column 112 on the side away from the bottom plate 1, and the carrier 23 is provided with an avoiding opening 114 corresponding to the limiting passage 113.

[0068] In the punching process, when the driving part 4 drives the driving structure 63 and the die part 52 to move towards the bottom plate 1, the positioning column 112 on the driving structure 63 slides along the shaft sleeve 111 on the pressure plate 51, the cooperation between the shaft sleeve 111 and the positioning column 112 provides accurate guidance for the relative movement of the driving structure 63 and the pressure plate 51, avoids lateral deviation of the two during movement, and ensures that the clamping part 62 of the pressure plate 51 can accurately cooperate with the edge part 32 of the bottom plate 1 to clamp the material; with the continuous action of the driving part 4, the positioning column 112 penetrates through the avoiding opening 114 of the carrier 23 and enters the limiting passage 113 of the lower plate 21, and the limiting passage 113 further limits the movement track of the positioning column 112, so that the blade 521 of the die part 52 always remains above the preset punching position, avoiding the deviation of the blade 521 due to the shaking of the driving structure 63; such multiple guiding and limiting structures not only ensure the accuracy of the pressure plate 51 clamping the material, but also ensure the position accuracy of the blade 521 during punching, effectively reducing the defective products caused by position deviation, and the sliding cooperation between the positioning column 112, the shaft sleeve 111 and the limiting passage 113 also reduces the friction loss during the movement of each component, improves the stability and service life of the equipment operation, and makes the whole punching process more reliable and efficient.

[0069] In order to ensure that the carrier 23 does not deviate or be different when placed on the lower plate 21, a positioning structure for positioning the carrier 23 needs to be added.

[0070] Specifically, referring to Figure 7 As shown, the carrier 23 is provided with a positioning hole 121 on the side away from the bottom plate 1, and the lower plate 21 is installed with a positioning protrusion 122 extending into the inside of the positioning hole 121.

[0071] When the carrier 23 is placed on the lower plate 21, the alignment protrusions 122 on the side of the lower plate 21 away from the base plate 1 are accurately inserted into the alignment holes 121 in the corresponding positions of the carrier 23. Through the cooperation of the alignment protrusions 122 and the alignment holes 121, the displacement of the carrier 23 in the horizontal direction is structurally restricted, ensuring that the carrier 23 is in the preset accurate position each time it is placed on the lower plate 21, and there is no deviation or inconsistency in position. After the position of the carrier 23 is fixed, the position of the material placed on the carrier 23 is also determined, which ensures that the blade 521 of the die part 52 cuts the material consistently each time, effectively avoiding cutting position errors caused by the deviation of the carrier 23 position, and reducing the generation of defective products.

[0072] In addition, in order to prevent the carrier 23 and the material from being placed in reverse, causing the cut-out product 14 to be inconsistent with the required product 14 and resulting in scrap, a foolproof structure needs to be added.

[0073] Specifically, as shown in Figure 7 and Figure 8 , the left limiting block 131 and the right limiting block 132 are arranged on the side of the lower plate 21 away from the base plate 1, and the shapes of the left limiting block 131 and the right limiting block 132 are inconsistent. The left limiting port 133 and the right limiting port 134 are respectively formed on the two sides of the side of the carrier 23 away from the base plate 1, and the left limiting block 131 and the right limiting block 132 are respectively corresponding to and adapted to the left limiting port 133 and the right limiting port 134.

[0074] By arranging the left limiting block 131 and the right limiting block 132 with inconsistent shapes on the side of the lower plate 21 away from the base plate 1, and respectively corresponding and adapting the left limiting block 131 and the right limiting block 132 to the left limiting port 133 and the right limiting port 134 formed on the two sides of the side of the carrier 23 away from the base plate 1, the carrier 23 can only be correctly installed when the left limiting block 131 is accurately inserted into the left limiting port 133 and the right limiting block 132 is accurately inserted into the right limiting port 134. Because the shapes of the left limiting block 131 and the right limiting block 132 are different, if the carrier 23 is placed in reverse, the left limiting block 131 and the right limiting block 132 cannot match the left limiting port 133 and the right limiting port 134, and the carrier 23 cannot be normally installed. Thus, the problem of scrap caused by reverse placement of the carrier 23 is effectively avoided, the accuracy of installation of the carrier 23 is ensured, the pass rate of cutting of the product 14 is improved, and material waste and production loss are reduced. At the same time, this structure design is simple and reliable, can save the time of the operator to judge the placement direction of the carrier 23, and improves the production efficiency.

[0075] In order to prevent the blade 521 from colliding with the stripper plate 10 and ensure that the depth of the downward movement of the blade 521 is consistent each time, as shown in Figure 3As shown, specifically, the bottom plate 1 and the driving part 4 are respectively provided with static limit seat 71 and dynamic limit seat 72, and the static limit seat 71 and the dynamic limit seat 72 are oppositely arranged. During punching, the driving part 4 drives the die part 52 to move downward, when the dynamic limit seat 72 moves downward with the driving part 4 to contact with the static limit seat 71, the two limit each other to limit the driving part 4 from continuing to move downward, thereby controlling the downward stroke of the die part 52, which not only avoids the damage of the blade 521 due to excessive downward impact on the stripper plate 10, but also ensures the consistent punching depth of the blade 521 on the material every time, guarantees the uniform size of the product 14, reduces the defective products caused by the depth deviation, and at the same time, the mechanical limiting structure is stable and reliable, can maintain accurate limiting effect for a long time, and improves the safety of the punching process and the quality stability of the product 14.

[0076] In addition, in order to prevent the static limit seat 71 and the dynamic limit seat 72 from colliding together quickly and causing vibration and collision noise. For this purpose, a guide column assembly 8 is arranged between the bottom plate 1 and the driving part 4. The guide column assembly 8 can buffer the driving part 4 moving downward.

[0077] Specifically, referring to Figure 3 As shown, the guide column assembly 8 includes a guide column 81, a guide sleeve 82, a limiting part 83, a steel ball bushing 84, a spring 85 and a stop block 86; the guide column 81 is installed on the side of the bottom plate 1 facing the driving part 4, the limiting part 83 is installed on the outer circumferential surface of the guide column 81, the steel ball bushing 84 is slidably sleeved on the guide column 81, the limiting part 83 is closer to the bottom plate 1 than the steel ball bushing 84, the spring 85 is sleeved on the guide column 81, the two ends of the spring 85 are connected with the limiting part 83 and the steel ball bushing 84 respectively, the end of the guide column 81 away from the bottom plate 1 is provided with the stop block 86, the stop block 86 is used to prevent the steel ball bushing 84 from being pushed out of the guide column 81 by the elastic force of the spring 85, and the length of the stop block 86 is between the outer diameter and the inner diameter of the steel ball bushing 84, the guide sleeve 82 is arranged on the side of the driving part 4 facing the bottom plate 1, and the steel ball bushing 84 corresponds to and matches the guide sleeve 82.

[0078] More specifically, during the downward movement of the driving part 4, the guide sleeve 82 moves synchronously with the driving part 4, and cooperates with the steel ball bushing 84 on the guide column 81 to achieve precise guidance. When the driving part 4 continues to move downward, the steel ball bushing 84 slides along the guide column 81 towards the bottom plate 1. At this time, the spring 85 is compressed by the steel ball bushing 84 and the limiting part 83. The elastic force of the spring 85 will generate a reverse force on the steel ball bushing 84, and then form a buffer on the driving part 4 through the guide sleeve 82, slow down the downward speed of the driving part 4, and avoid the direct and violent impact of the static limit seat 71 and the dynamic limit seat 72. The sliding cooperation of the steel ball bushing 84 and the guide column 81 and the elastic buffer of the spring 85 effectively reduce the vibration during the downward movement of the driving part 4, reduce the collision noise when the static limit seat 71 and the dynamic limit seat 72 contact, and the cooperation of the guide column 81 and the guide sleeve 82 ensures the straightness of the movement of the driving part 4, avoids the aggravation of the collision due to the deviation, prolongs the service life of the equipment, makes the punching process more stable and quiet, improves the reliability of the equipment operation and the comfort of the working environment.

[0079] In the description of the present specification, the description of the terms "embodiment", "one embodiment", "certain embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the described embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0080] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only to explain the principles of the present application, and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these equivalent variations or replacements are included in the scope defined by the claims of the present application.

Claims

1. A die-cutting die characterized by, The utility model relates to a cutting die device, including: The bottom plate (1); The material limiting part (2) is set up in the bottom plate (1), and the side away from the bottom plate (1) of the material limiting part (2) is provided with cutting port (31), and the inner side wall of cutting port (31) is provided with edge (32); The driving part (4) is provided with the opposite side of the material limiting part (2) with the bottom plate (1), and the driving part (4) is provided with the side of the punch die mould (5) towards the bottom plate (1);The punch die mould (5) includes pressure plate (51) and die part (52), the pressure plate (51) is installed to the side of the driving part (4) towards the bottom plate (1), the die part (52) is installed to the side of the pressure plate (51) towards the bottom plate (1), and the side of the die part (52) towards the bottom plate (1) has blade (521), and the blade (521) is annular closed structure; The material limiting part (2) includes lower plate (21), drop port (22), carrier (23), and through mould port (24); The lower plate (21) is provided with the side of the bottom plate (1) towards the driving part (4), the drop port (22) is opened in the side of the lower plate (21) towards the driving part (4), and the edge (32) is the peripheral part of the lower plate (21) close to the drop port (22); The carrier (23) is placed on the side of the lower plate (21) towards the driving part (4), the through mould port (24) is opened in the side of the carrier (23) towards the driving part (4), the size of the through mould port (24) is greater than the size of the drop port (22), and the through mould port (24) leaks the edge (32) on the lower plate (21);The die part (52) can pass through the edge (32); The drop port (22) and the through mould port (24) constitute the cutting port (31); The pressure plate (51) is provided with the clamping portion (62) surrounding the expansion opening (61) on the side close to the bottom plate (1), and the clamping portion (62) corresponds to the edge (32);The driving structure (63) is connected between the driving part (4) and the pressure plate (51), the driving structure (63) is provided with the connecting port (64) penetrating itself, and the elastic member (65) penetrating the connecting port (64) is installed between the driving part (4) and the pressure plate (51);The side of the die part (52) close to the bottom plate (1) is located in the space surrounded by the clamping portion (62), and the end of the die part (52) away from the bottom plate (1) penetrates the expansion opening (61) and is connected with the driving structure (63).

2. The die cutting die of claim 1, wherein, The pressing plate (51) is provided with a shaft sleeve (111), the driving structure (63) is installed with a positioning column (112), one end of the positioning column (112) penetrates through the shaft sleeve (111), the positioning column (112) is in sliding connection with the shaft sleeve (111), a limiting channel (113) corresponding to the positioning column (112) is formed in the side of the lower plate (21) away from the bottom plate (1), and the carrier (23) is provided with an avoiding opening (114) corresponding to the limiting channel (113).

3. The die cutting die of claim 1, wherein, The bottom plate (1) is provided with a raised plate (91) located in the material dropping opening (22), a placing groove (921) is formed in the side of the raised plate (91) away from the bottom plate (1), a placing opening (922) is formed in the side of the raised plate (91) away from the bottom plate (1), the placing groove (921) and the placing opening (922) are in communication and form an installation space (92), and the inside of the installation space (92) is provided with an ejection structure (93).

4. The die of claim 3 wherein, The raised plate (91) is provided with a material stripping plate (10) located in the material dropping opening (22).

5. The die of claim 1 wherein, The side of the carrier (23) away from the bottom plate (1) is provided with a positioning hole (121), and the side of the lower plate (21) away from the bottom plate (1) is installed with a positioning protrusion (122) extending into the inside of the positioning hole (121).

6. The die of claim 1 wherein, The bottom plate (1) and the driving part (4) are respectively provided with a static limiting seat (71) and a dynamic limiting seat (72) on opposite sides, and the static limiting seat (71) and the dynamic limiting seat (72) are oppositely arranged.

7. The die of claim 1 wherein, A guide column assembly (8) for buffering the driving part (4) is arranged between the bottom plate (1) and the driving part (4).

8. The die-cutting die of claim 7, wherein, The guide column assembly (8) comprises a guide column (81), a guide sleeve (82), a limiting part (83), a steel ball bushing (84), a spring (85) and a stopper (86); the guide column (81) is installed on the side of the bottom plate (1) facing the driving part (4), the limiting part (83) is installed on the outer circumferential surface of the guide column (81), the steel ball bushing (84) is slidably sleeved on the guide column (81), the limiting part (83) is closer to the bottom plate (1) than the steel ball bushing (84), the spring (85) is sleeved on the guide column (81), the two ends of the spring (85) are connected with the limiting part (83) and the steel ball bushing (84) respectively, the end of the guide column (81) away from the bottom plate (1) is installed with the stopper (86), the stopper (86) is used for preventing the steel ball bushing (84) from being pushed out of the guide column (81) by the elastic force of the spring (85), the length of the stopper (86) is between the outer diameter and the inner diameter of the steel ball bushing (84), the guide sleeve (82) is arranged on the side of the driving part (4) opposite to the bottom plate (1), the steel ball bushing (84) corresponds to and is adapted to the guide sleeve (82).

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