Stamping and punching die

Abstract

The utility model belongs to the technical field of dies, and particularly relates to a stamping and punching die which comprises a die body, a plurality of reserved holes used for installing other assemblies are formed in the die body, a die core is embedded in the bottom of the die body, punching needles are arranged in the die core, and the punching needles are limited in the die body through the reserved holes. An inner pad for limiting the position of the punching needle and bearing recoil generated when the punching needle punches is arranged above the punching needle, a material pushing rod is further installed in the inner pad, the bottom of the material pushing rod is connected with a material pushing disc, the top of the material pushing rod is connected with a cross-shaped pad, the periphery of the cross-shaped pad is sleeved with a limiting pad, and the limiting pad is arranged above the main body; and the cross pad and the material pushing rod can move up and down in the limiting pad. Through the arrangement of the components, materials can be quickly separated from the punching needle, the stability and continuity of the production process are improved, the materials are limited through the structures such as the material pushing disc before punching, the punching precision and the machining quality are improved, meanwhile, impact force borne by the punching needle during punching is transmitted to the inner pad, and the service life of the punching needle is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of display equipment technology, specifically relating to a stamping and punching mold. Background Technology

[0002] In the mold manufacturing industry, there has long been a series of thorny problems when stamping and punching products that will produce material stripping.

[0003] Currently, dies used for stamping and punching such products often suffer from the problem of products being pulled out of the die after the punching operation due to the lack of an effective material ejection mechanism. This situation leads to several serious consequences: the die cannot function properly due to material being carried away by the punching pins, forcing production to stop, significantly reducing production efficiency and increasing production costs. More seriously, if the material carrying problem occurs frequently, it is highly likely that the master die will be damaged by impact. As the core and critical component of the die, damage to the master die not only incurs extremely high replacement costs but also involves a lengthy repair process, which will undoubtedly further delay the production schedule.

[0004] Furthermore, in traditional molds, the impact force on the punching pin during the punching process is difficult to effectively buffer, resulting in a significant reduction in the lifespan of the punching pin. Frequent replacement of punching pins not only increases production costs but also negatively impacts the processing accuracy of the product and disrupts the continuity of production.

[0005] Therefore, how to effectively solve the problem of material carrying in the punching pin during the processing of stamping and punching dies, effectively avoid die failure and damage, and significantly improve the service life of the punching pin has become a key technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this utility model is to provide a stamping and punching die, which aims to solve the technical problems of die failure, damage and short life of punching needles caused by the problem of material carrying in the punching needle during processing in the existing stamping and punching die.

[0007] To achieve the above objectives, this utility model provides a stamping and punching die, characterized in that it includes a main body, a die core, a punching pin, an inner pad, a push rod, a push plate, a limiting pad, and a cross pad; the main body has multiple reserved holes for installing other components of the die, the die core is embedded at the bottom of the main body, and the die core has a circular hole in the middle that matches the diameter of the punching pin for the punching pin to pass through; the punching pin is provided in the die core, and an inner pad is provided above the punching pin to limit the position of the punching pin and bear the recoil force generated when the punching pin punches; a push rod is installed in the inner pad, the bottom of the push rod is connected to the push plate, and the top is connected to the cross pad, and a limiting pad is sleeved around the cross pad, the limiting pad is located above the main body, and the cross pad and the push rod can move up and down in the limiting pad.

[0008] Preferably, the main body is provided with a mold core hole, a pin hole, an inner pad groove, and a mounting hole; the mold core hole is located at the center of the lower part of the main body and is used to install and fix the mold core; a pin hole is provided above the mold core hole; the inner pad groove above the pin hole is coaxially connected with the pin hole and the mold core hole and is used to install and fix the inner pad; a plurality of mounting holes are symmetrically arranged along the central axis in the main body, located at the bottom of the inner pad groove and penetrating the main body, and are used to install and limit the position of the push rod.

[0009] Preferably, the punching pin is disposed in the pin hole in the main body and the round hole in the mold core, and protrudes from the main body. The shape of the part protruding from the main body matches the thickness of the material to be punched and the required hole shape. The top of the punching pin is provided with a protrusion, and the diameter of the protrusion is larger than the diameter of the pin hole.

[0010] Preferably, the inner pad has a through hole coaxial with the mounting hole; an extension rod one is provided above the inner pad, and an extension rod two is provided above the extension rod one. The diameter of the extension rod two is smaller than the diameter of the extension rod one. Space is reserved on both sides of the extension rod one for the push rod to move. A cross pad is fitted on the extension rod two. The extension rod one and the extension rod two cooperate to restrict the position of the inner pad and the range of motion of the cross pad.

[0011] Preferably, there are multiple push rods disposed in the mounting hole and the through hole. The bottom end of the push rod is provided with a connecting part, which is connected to the push plate. The top end of the push rod is provided with a limiting part. The diameter of the limiting part is larger than the diameter of the push rod. Under the limiting effect of the through hole, the limiting part restricts the range of motion of the push rod. The top of the limiting part is fixedly connected to the cross pad.

[0012] Preferably, the pusher plate is located below the main body, and the pusher plate has a connecting hole coaxially arranged with the mounting hole. The connecting hole cooperates with the connecting part to connect the pusher plate with the pusher rod. The pusher plate has a through reserved hole in the middle position, which serves to allow the punching needle to pass through.

[0013] Preferably, the limiting pad is located above the main body and connected to the main body. The limiting pad is a cross-shaped limiting pad with a hollow cross-shaped structure in the middle, which is used to install the cross pad and provide space for the cross pad to move up and down. The lower half of the limiting pad is provided with a groove.

[0014] Preferably, the cross pad has a circular hole in the middle for the extension rod 2 to pass through. The cross pad is located in the limiting pad, and the sum of the height of the cross pad and the height of the part of the punching needle that extends into the material to perform the punching work is equal to the height of the limiting pad. The cross pad moves up and down in the limiting pad along the extension rod 2.

[0015] The above-mentioned technical solutions of one or more technical solutions in the stamping and punching die provided by this utility model embodiment have at least one of the following technical effects:

[0016] The present invention provides a stamping and punching die in which, after punching, the pusher plate facilitates the smooth separation of the material from the punching needle, preventing the material from sticking to the punching needle and avoiding production interruptions or product damage caused by material sticking. This effectively ensures the continuity and stability of the production process, enabling the entire stamping and punching operation to be carried out efficiently and stably.

[0017] In this utility model, a punching die is provided. During the punching process, the pusher plate contacts the material before the punching needle. With the cooperation of the master die, the material is reliably limited. This design effectively prevents the material from shifting during the punching process, improves the punching accuracy, and reduces the defect rate of the produced products.

[0018] The punching die of this invention features a clever structural design that effectively transfers the impact force on the punching needle to the inner pad during operation. The inner pad distributes the impact force on the punching needle, reducing the stress burden on the punching needle itself. In this way, the punching needle is better protected during frequent punching operations, thereby extending its service life, reducing the frequency of replacement due to damage, lowering production costs, and improving production efficiency.

[0019] In this utility model, a punching die is provided, in which the punching needle always moves within a die core made of tungsten steel. Tungsten steel, with its high hardness, strong wear resistance, and excellent stability, provides a stable and reliable support for the punching needle, ensuring that the punching needle can maintain a precise movement trajectory during long-term, high-intensity work. The punching effect will not be affected by the wear or deformation of the die core, further improving the punching accuracy and enhancing the product's market competitiveness. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view of a stamping and punching die provided in an embodiment of the present utility model.

[0022] Figure 2 for Figure 1 Sectional view at point AA.

[0023] Figure 3 An exploded view of a stamping and punching die provided in an embodiment of this utility model.

[0024] Figure 4 for Figure 3 Sectional view at point BB.

[0025] Figure 5 A perspective view of a cross pad in a stamping and punching die provided for an embodiment of this utility model.

[0026] The following are the labeling elements in the figure:

[0027] 10—Main body; 11—Mold core hole; 12—Pin hole; 13—Inner pad groove; 14—Mounting hole

[0028] 20—Mold core; 30—Punching pin; 31—Bump; 40—Inner pad; 41—Through hole

[0029] 42—Extension rod one; 43—Extension rod two; 50—Push rod; 51—Connecting part

[0030] 52—Limiting part; 60—Pushing plate; 61—Connecting hole; 62—Reserved hole; 70—Limiting pad

[0031] 71—Groove 80—Cross pad. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] In one embodiment of this utility model, such as Figure 1-4 As shown, a stamping and punching die is provided, including a main body 10, a die core 20, a punching pin 30, an inner pad 40, a push rod 50, a push plate 60, a limiting pad 70, and a cross pad 80.

[0037] The main body 10 has multiple reserved holes for the installation of other components of the mold. The bottom of the main body 10 is embedded with a mold core 20. The mold core 20 has a round hole in the middle that matches the diameter of the punching needle 30 for the punching needle 30 to pass through. The mold core 20 is made of tungsten steel, which has the advantages of high hardness, wear resistance, high strength, compressive strength, good thermal conductivity and high toughness.

[0038] The mold core 20 is provided with a punching pin 30, which is restricted in the main body 10 through a reserved hole. Above the punching pin 30 is an inner pad 40 that restricts the position of the punching pin 30 and bears the recoil force generated when the punching pin 30 punches. The inner pad 40 is made of spring steel. Spring steel has excellent elastic limit and fatigue strength. It can withstand large impact forces and quickly return to its original shape after being subjected to force, providing continuous and stable buffer support for the punching pin 30. Moreover, spring steel has good heat resistance and can still maintain good performance when the mold generates a certain amount of heat due to continuous operation.

[0039] The inner pad 40 is also equipped with a push rod 50. The bottom of the push rod 50 is connected to a push plate 60, and the top is connected to a cross pad 80. A limiting pad 70 is sleeved around the cross pad 80. The limiting pad 70 is located above the main body 10. The cross pad 80 and the push rod 50 can move up and down in the limiting pad 70.

[0040] When the punching pin 30 moves downward under the action of the drive mechanism connected above the mold to punch a hole in the material, the pusher plate 60 contacts the material before the punching pin and, in cooperation with the female mold, reliably limits the material. Simultaneously, the pusher plate 60 pushes the pusher rod 50, causing the cross pad 80 to move upward within the limiting pad 70. When the top surface of the cross pad 80 and the top surface of the limiting pad 70 are on the same plane, the punching pin 30 fully extends into the die cavity to punch a hole in the material. At this time, the recoil force on the punching pin 30 is transferred to the inner pad 40, which shares the impact force on the punching pin 30, extending its service life. Furthermore, the punching pin 30 always moves within the mold core 20, which is made of tungsten steel. With its high hardness, strong wear resistance, and excellent stability, the mold core 20 firmly supports the punching pin 30, ensuring that it maintains a precise movement trajectory during long-term, high-intensity work. Subsequently, the drive mechanism moves the mold upward. As the punching pin 30 moves upward, the cross pad 80 moves downward in the limiting pad 70 under the action of gravity, so that the pusher plate 60 is always in contact with the material. With the help of the gravity of the cross pad 80, the pusher rod 50 and the pusher plate 60, the material is separated from the punching pin 30.

[0041] The main body 10 is provided with a core hole 11, a pin hole 12, an inner pad groove 13, and a mounting hole 14.

[0042] The core hole 11 is located at the center of the lower part of the main body 10, and the core hole 11 is used to install and fix the core 20 by bolts, rivets, etc.

[0043] A pinhole 12 is provided above the core hole 11. The diameter of the pinhole 12 matches the diameter of the punch 30, so that the punch 30 can be stably embedded in the pinhole 12. The diameter of the top of the pinhole 12 is larger than the diameter of the punch 30, so as to match the top of the punch 30.

[0044] An inner pad groove 13 is provided above the pinhole 12. The inner pad groove 13, the pinhole 12, and the mold core hole 11 are coaxial and interconnected. The inner pad groove 13 serves to install and fix the inner pad 40.

[0045] The main body 10 is also provided with a plurality of mounting holes 14. The mounting holes 14 are symmetrically arranged with the central axis of the main body 10 as the symmetrical line. The mounting holes 14 are located at the bottom of the inner pad groove 13 and are connected to the inner pad groove 13. The mounting holes 14 are used to install and limit the position of the push rod 50.

[0046] The punching needle 30 is disposed in the pin hole 12 in the main body 10 and the round hole of the mold core 20, and protrudes from the main body 10. The shape of the part protruding from the main body 10 matches the thickness of the material to be punched and the required hole shape. The top of the punching needle 30 is provided with a protrusion 31, the diameter of which is larger than the diameter of the pin hole 12. At the same time, under the limiting action of the inner pad 40, the punching needle 30 is restricted to a fixed position in the main body 10.

[0047] The inner pad 40 has the same diameter as the inner pad groove 13 and is installed in the inner pad groove 13. The inner pad 40 also serves to limit the position of the punching needle 30. The inner pad 40 has a through hole 41 that is coaxial with the mounting hole 14 and passes through the inner pad 30. The through hole 41 serves to allow the push rod 50 to pass through and to assist the mounting hole 14 in limiting the position of the push rod 50.

[0048] An extension rod 42 is provided above the inner pad 40, and an extension rod 43 is provided above the extension rod 42. The diameter of the extension rod 43 is smaller than the diameter of the extension rod 42. The extension rod 42 and the extension rod 43 cooperate to limit the vertical position of the inner pad 40.

[0049] The extension rod 42 has space reserved on both sides for the push rod 50 to move. The extension rod 43 is fitted with a cross pad 80. The extension rod 42 and the extension rod 43 cooperate to restrict the range of motion of the cross pad 80.

[0050] Multiple push rods 50 are provided in the mounting hole 14 and the through hole 41. The bottom end is provided with a connecting part 51, which is connected to the push plate 60 by means of threaded connection or other connection methods. The top end is provided with a limiting part 52, the diameter of which is larger than the diameter of the push rod 50. The limiting part 52 restricts the range of motion of the push rod 50 under the restriction of the through hole 41. The top of the limiting part 52 is fixedly connected to the cross pad 80.

[0051] The pusher plate 60 is located below the main body 10. The pusher plate 60 is provided with a connecting hole 61 that is coaxial with the mounting hole 14. The connecting hole 61 cooperates with the connecting part 51 to connect the pusher plate 60 with the pusher rod 50. The pusher plate 60 is provided with a through reserved hole 62 in the middle position. The reserved hole 62 serves to allow the punching needle 30 to pass through.

[0052] The limiting pad 70 is located above the main body 10 and is connected to the main body 10 by means of rivets, bolts, etc. The limiting pad 70 is a cross-shaped limiting pad with a hollow cross-shaped structure in the middle, which is used to install the cross pad 80 and provide space for the cross pad 80 to move up and down. The lower half of the limiting pad 70 has a groove 71. The groove 71 reduces the friction between the cross pad 80 and the limiting pad 70, so that the pusher plate 60 can better contact the material. When the mold is installed in the drive mechanism, the top of the limiting pad 70 contacts the connecting plate of the drive mechanism.

[0053] like Figure 5 As shown, the cross pad 80 has a round hole in the middle for the extension rod 43 to pass through. The cross pad 80 is located in the limiting pad 70, and the sum of the height of the cross pad 80 and the height of the part of the punching needle 30 that extends into the material to perform the punching work is equal to the height of the limiting pad 70. The cross pad 80 moves up and down in the limiting pad 70 along the extension rod 43.

[0054] The working principle of this utility model is as follows: A stamping and punching die, in use, a die core 20 is installed in the die core hole 11 and fixedly connected to the main body 10. A punching needle 30 is installed in the needle hole 12 and the die core 20. An inner pad 40 is placed in the inner pad hole groove 13. Then, the push rod 50 is connected to the push plate 60 and placed in the mounting hole 14 and the through hole 41. Next, the cross pad 80 is sleeved on the extension rod 43 and fixedly connected to the protrusion 31. Then, the limiting pad 70 is fixedly connected to the main body 10. Finally, the drive mechanism is connected to the main body 10. The drive mechanism drives the main body 10 to move downward, and the push plate 60 contacts the material to limit the material. With the cooperation of the master die, the material is reliably limited. This design effectively avoids the displacement of the material during the punching process, ensures accurate punching position, and reduces the defect rate of the produced products. Meanwhile, the punch 30 always moves within the tungsten steel core 20. The tungsten steel material, with its high hardness, strong wear resistance, and excellent stability, provides a solid and reliable support for the punch 30, ensuring that the punch 30 can maintain a precise movement trajectory during long-term, high-intensity work. The punching effect will not be affected by the wear or deformation of the core 20, further improving the punching accuracy and enhancing the product's market competitiveness.

[0055] As the main body 10 continues to descend, the pusher plate 60 pushes the pusher rod 50, causing the cross pad 80 to move upward along the extension rod 43 within the limiting pad 70, until the main body 10 drives the punching needle 30 downward to complete the punching of the material. At this point, the top surface of the cross pad 80, the extension rod 43, and the top surface of the limiting pad 70 are on the same plane. When the punching needle 30 is performing the punching operation, the impact force on the punching needle 30 is effectively transferred to the inner pad 40. The inner pad 40 shares the impact force on the punching needle 30, thereby extending the service life of the punching needle, reducing production costs, and improving production efficiency. Subsequently, the drive mechanism moves the main body 10 upward, and the punching pin 30 moves upward under the drive of the main body 10. The cross pad 80 moves downward along the extension rod 43 in the limiting pad 70 under the action of gravity. At the same time, the push rod 50 also moves downward, keeping the push plate 60 in contact with the material. As the punching pin 30 moves upward, the material is restricted from moving by the push plate 60, thereby promoting the smooth separation of the material from the punching pin 30. This avoids the material sticking to the punching pin 30, preventing production interruption or product damage caused by material sticking. It effectively ensures the continuity and stability of the production process, enabling the entire stamping and punching operation to be carried out efficiently and stably.

[0056] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 punch and pierce die characterized by: The utility model relates to a puncher for the material of the hole type, including main body (10), mould core (20), punch needle (30), inner pad (40), push material rod (50), push material disc (60), limiting pad (70), cross pad (80), the main body (10) is equipped with multiple reserved holes for the installation of other components of mould, and the bottom of main body (10) is embedded with mould core (20), and the middle of mould core (20) is equipped with the circular hole of punch needle (30) diameter matching for the through of punch needle (30), the mould core (20) is equipped with punch needle (30), and the upper of punch needle (30) is equipped with the inner pad (40) of limiting punch needle (30) position and bearing punch needle (30) and the back force of generating when punching, push material rod (50) is installed in inner pad (40), push material rod (50) bottom connects push material disc (60), and top connects cross pad (80), and cross pad (80) is peripherally equipped with limiting pad (70), and the limiting pad (70) is located above main body (10), and cross pad (80) and push material rod (50) can be moved up and down in limiting pad (70).

2. A punch and pierce die according to claim 1 wherein: The main body (10) is equipped with mould core hole (11), needle hole (12), inner pad hole groove (13), mounting hole (14), the mould core hole (11) is located below the center position of main body (10), is used for installing fixed mould core (20), the mould core hole (11) is equipped with needle hole (12) above, the inner pad hole groove (13) is coaxial with needle hole (12) and mould core hole (11) and penetrates, is used for installing fixed inner pad (40), the multiple mounting holes (14) of main body (10) are symmetrically arranged with the central axis, are located at the bottom of inner pad hole groove (13) and penetrate main body (10), are used for installing and limiting the position of push material rod (50).

3. The punch and die assembly of claim 1 wherein: The punch needle (30) is located in needle hole (12) in the main body (10) and the circular hole of mould core (20), and protrudes from the main body (10), the shape of the part protruding from the main body (10) is matched with the thickness of the material to be punched and the required hole type, the punch needle (30) is provided with a protrusion (31) at the top end, and the diameter of the protrusion (31) is greater than the diameter of the needle hole (12).

4. The punch and pierce die of claim 1 wherein: The inner pad (40) is provided with a through hole (41) coaxial with the mounting hole (14) and penetrating the inner pad (40), the inner pad (40) is provided with an extension rod one (42) above, the extension rod one (42) is provided with an extension rod two (43) above, the diameter of the extension rod two (43) is less than the diameter of the extension rod one (42), the extension rod one (42) is provided with a space on both sides for the movement of the push material rod (50), the extension rod two (43) is provided with a cross pad (80), and the extension rod one (42) is matched with the extension rod two (43) to limit the position of the inner pad (40) and the movement range of the cross pad (80).

5. The punch and die assembly of claim 1 wherein: The pushing rod (50) has multiple, is equipped in the mounting hole (14), passes through the hole (41), the bottom end of pushing rod (50) is equipped with connecting part (51), connecting part (51) is connected with pushing disc (60), the top end of pushing rod (50) is equipped with limiting part (52), the diameter of limiting part (52) is greater than the diameter of pushing rod (50), the limiting part (52) is limited under the limiting action of passing hole (41), the range of activity of pushing rod (50) is limited, the top of limiting part (52) is fixedly connected with cross pad (80).

6. The punch and pierce die of claim 1 wherein: The pushing disc (60) is equipped below the main body (10), and the connecting hole (61) coaxial with the mounting hole (14) is arranged on the pushing disc (60), the connecting hole (61) is matched with the connecting part (51), so that the pushing disc (60) is connected with the pushing rod (50), and the reserved hole (62) is arranged in the middle position of the pushing disc (60), the reserved hole (62) is used for the through action of the punching needle (30).

7. The punch and die assembly of claim 1 wherein: The limiting pad (70) is arranged above the main body (10) and connected with the main body (10), the limiting pad (70) is a cross-shaped limiting pad, the middle part is a cross-shaped hollow structure, which is used for installing the cross pad (80) and providing space for the up-down movement of the cross pad (80); the lower half of the limiting pad (70) is provided with a groove (71).

8. The punch and pierce die of claim 1 wherein: The cross pad (80) is provided with a circular hole in the middle for the extension rod two (43) to pass through, the cross pad (80) is arranged in the limiting pad (70), and the sum of the height of the cross pad (80) and the height of the part of the punching needle (30) extending into the material for punching work is equal to the height of the limiting pad (70), and the cross pad (80) moves up and down in the limiting pad (70) along the extension rod two (43).

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