High-speed stamping die structure

Abstract

The utility model provides a high-speed stamping die structure. The high-speed stamping die structure comprises a lower die assembly, an upper die assembly and a stripper plate. The lower die assembly comprises a lower die base, a lower cover plate and a knife edge plate. The upper die assembly comprises an upper die base, an upper cover plate, a fixed attached needle plate and a high-speed punching needle. The stripper plate provided by the utility model replaces an elastic pressing seat of the traditional same equipment, and is fixed in the punching process, and the distance between the stripper plate and a knife edge plate is just enough for a pre-punched plate to pass through, so that the movement of the plate is not influenced, the top surface of the pre-punched plate can be propped during needle withdrawing, the pre-punched plate is prevented from moving upwards, and the punching quality of the pre-punched plate is improved. And the high-speed punching needle can be quickly separated from the plate. Compared with the existing equipment, the high-speed stamping die structure provided by the utility model has the advantages that the punching processing action with higher speed can be realized, the action is few, and the heating value is small.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a high-speed stamping die structure. Background Art

[0002] The perforated mesh is a metal plate with mesh holes, which is generally processed by a stamping die. With the advancement of technology, the stamping die can process smaller and denser mesh holes on the metal plate. During processing, in order to allow the punch needle to smoothly detach from the plate and avoid deformation or distortion of the plate during punching and needle withdrawal, an elastic pressing seat with a pinhole is often provided. The punch needle is inserted into the pinhole of the elastic pressing seat. When punching, the elastic pressing seat moves down and presses the plate. As the upper die seat further descends, the spring of the elastic pressing seat contracts, the punch needle extends from the pinhole of the elastic pressing seat, and punches the plate. After the punching is completed, as the upper die seat moves up, the elastic pressing seat gradually recovers, and the punch needle shrinks into its pinhole, and finally withdraws from the mesh hole of the plate. During the withdrawal process, the elastic pressing seat supports the plate to prevent the plate from twisting or deformation. The above-mentioned stamping die structure can reduce the deformation of the plate, but it also has some disadvantages that cannot be ignored, mainly manifested as: 1. Slow speed. Each time a hole is punched and a needle is withdrawn, several continuous actions need to be completed between the internal components, resulting in a slow overall speed; 2. High heat generation. Each time a hole is punched and a needle is withdrawn, the spring is in the process of compression and recovery, and the die is very likely to overheat; 3. Due to the reason for disadvantage 2, it is easy to malfunction or have a short life. To this end, the utility model provides a stamping die structure that can solve the above technical problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a stamping die structure with high processing speed.

[0004] A high-speed stamping die structure includes a lower die assembly, an upper die assembly and a stripper plate, wherein:

[0005] The lower die assembly comprises a lower die base, a lower cover plate and a knife edge plate. The knife edge plate is installed on the top of the lower die base through the lower cover plate and is provided with a knife edge in a vertical direction for punching.

[0006] The upper die assembly includes an upper die base, an upper cover plate, a fixed needle plate and a high-speed punch. The upper die base is opposite to the lower die base and is located on the top of the lower die base. The fixed needle plate is installed at the bottom of the upper die base through the upper cover plate and is opposite to the knife edge plate. The high-speed punch is vertically installed at the bottom of the fixed needle plate and points to the knife edge. When punching, it squeezes the plate together with the knife edge to form a mesh.

[0007] The stripper plate is relatively fixedly arranged between the lower die assembly and the upper die assembly. There are two stripper plates, which are symmetrically arranged on both sides of the top of the knife plate and located on both sides of the fixed needle plate. The distance from the bottom surface of the stripper plate to the top surface of the knife plate is greater than or equal to the thickness of the pre-punched sheet. At this time, the distance between the stripper plate and the knife plate is just enough for the pre-punched sheet to pass through, and when the needle is withdrawn, the stripper plate can support the top surface of the pre-punched sheet to prevent it from moving up, so that the high-speed punching needle can be quickly separated from the sheet.

[0008] The utility model replaces the elastic pressing seat of the traditional same equipment by setting a stripping plate, which is fixed during the punching process, and the distance between it and the knife edge plate is just enough for the pre-punched plate to pass through, so that it does not affect the movement of the plate, and can prevent the pre-punched plate from moving up by supporting the top surface of the pre-punched plate when the needle is withdrawn, so that the high-speed punching needle can be quickly separated from the plate. Compared with the existing equipment, the high-speed stamping die structure provided by the utility model can realize faster punching processing action, and at the same time, it also has the advantages of less action and less heat generation.

[0009] Preferably, the top surface of the stripping plate is installed via a shock-absorbing seat, which can absorb part of the vibration generated during high-speed punching and eliminate the toughness of the material.

[0010] Preferably, the shock absorbing seat is a cast iron accessory with good shock absorbing effect.

[0011] Preferably, the upper die base is movably mounted on the top of the lower die base by a hydraulic device, and is driven by the hydraulic device, which also has a shock-absorbing effect.

[0012] Preferably, the upper die base and the lower die base are both provided with a quick-disassembly hydraulic clamp for cooperating with the installation hydraulic device, so as to realize the quick installation and disassembly of the die base and the hydraulic device.

[0013] Preferably, a guide mechanism is provided on the periphery between the upper die seat and the lower die seat, which can improve the directional accuracy and punching precision during the punching process, and also avoid the problem of easy breakage of the high-speed punch needle.

[0014] Preferably, the guide mechanism includes a guide column and a guide sleeve, the guide sleeve is arranged at the bottom of the upper mold base, and the guide column is arranged at the top of the lower mold base and is telescopically inserted into the guide sleeve, which has a simple structure and good guiding effect.

[0015] Preferably, a stop plate is provided between the upper cover plate and the fixed needle plate to assist in stabilizing the punching needle.

[0016] Preferably, the fixed needle plate is provided with a punch needle mounting hole, the punch needle mounting hole is a stepped hole, the high-speed punch needle passes through the punch needle mounting hole, and a limiting head is provided on the top to limit the upper space of the punch needle mounting hole.

[0017] As can be seen from the above description of the present utility model, the present utility model has the following beneficial effects:

[0018] By providing a stripper plate, the present utility model replaces the elastic pressing seat of traditional similar equipment. The stripper plate is fixed during the punching process, and the distance between it and the cutting edge plate is just enough for the pre-punched sheet to pass through, so as to achieve that it does not affect the movement of the sheet and can prevent the pre-punched sheet from moving up when retracting the needle, enabling the high-speed punching needle to be quickly separated from the sheet. Compared with existing equipment, the high-speed stamping die structure provided by the present utility model can achieve a faster punching processing action, and at the same time, it also has the advantages of fewer actions and less heat generation.

[0019] The top surface of the stripper plate provided by the present utility model is installed through a shock-absorbing seat. The shock-absorbing seat is preferably a cast iron accessory, which can absorb part of the vibration generated during high-speed punching and eliminate the toughness of the material.

[0020] A guiding mechanism is provided at the periphery between the upper die base and the lower die base, which can improve the direction accuracy during punching, improve the punching precision, and at the same time can also avoid the problem that the high-speed punching needle is prone to breakage.

[0021] The guiding mechanism includes a guiding column and a guiding sleeve, with a simple structure and good guiding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present utility model, form a part of the present utility model, and the schematic embodiments and descriptions thereof are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Wherein:

[0024] Figure 1 is a front view of a high-speed stamping die structure;

[0025] Figure 2 is a side view of a high-speed stamping die structure;

[0026] From Figure 1 to Figure 2 The markings in are respectively: lower die assembly 1, lower die base 11, lower cover plate 12, cutting edge plate 13, upper die assembly 2, upper die base 21, upper cover plate 22, fixed attachment needle plate 23, high-speed punching needle 24, stop plate 25, stripper plate 3, shock-absorbing seat installation 4, quick-disassembly hydraulic clamp 5, guiding column 6, guiding sleeve 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0028] See also Figure 1 and Figure 2 A high-speed stamping die structure includes a lower die assembly 1, an upper die assembly 2 and a stripper plate 3, wherein:

[0029] The lower die assembly 1 comprises a lower die base 11, a lower cover plate 12 and a knife edge plate 13. The knife edge plate 13 is installed on the top of the lower die base 11 through the lower cover plate 12, and is provided with a vertical knife edge for punching.

[0030] The upper die assembly 2 includes an upper die base 21, an upper cover plate 22, a fixed needle plate 23 and a high-speed punch 24. The upper die base 21 is opposite to the lower die base 11 and is located on the top of the lower die base 11. The fixed needle plate 23 is installed at the bottom of the upper die base 21 through the upper cover plate 22 and is opposite to the knife edge plate 13. The high-speed punch 24 is vertically installed at the bottom of the fixed needle plate 23 and points to the knife edge. When punching, it squeezes the plate together with the knife edge to form a mesh.

[0031] In this embodiment, the top surface of the stripper plate 3 is mounted via a shock-absorbing seat 4, which can absorb part of the vibration generated during high-speed punching and eliminate the toughness of the material. Preferably, the shock-absorbing seat is a cast iron accessory with good shock-absorbing effect.

[0032] In addition, a stop plate 25 is provided between the upper cover plate 22 and the fixed needle plate 23 to assist in stabilizing the punch needle. The fixed needle plate 23 is provided with a punch needle mounting hole, which is a stepped hole. The high-speed punch needle 24 passes through the punch needle mounting hole, and a limiting head is provided on the top to limit the upper space of the punch needle mounting hole.

[0033] The stripper plate 3 is relatively fixedly arranged between the lower die assembly 1 and the upper die assembly 2. There are two stripper plates 3, which are symmetrically arranged on both sides of the top of the knife plate 13 and located on both sides of the fixed needle plate 23. The distance from the bottom surface of the stripper plate 3 to the top surface of the knife plate 13 is greater than or equal to the thickness of the pre-punched sheet. At this time, the distance between the stripper plate 3 and the knife plate 13 is just enough for the pre-punched sheet to pass through, and when the needle is withdrawn, the stripper plate 3 can support the top surface of the pre-punched sheet to prevent it from moving up, so that the high-speed punching needle 24 can be quickly separated from the sheet.

[0034] In one embodiment, the upper die base 21 is movably mounted on the top of the lower die base 11 by a hydraulic device, and is driven by a hydraulic device, which also has a shock-absorbing effect. Preferably, both the upper die base 21 and the lower die base 11 are provided with a quick-disassembly hydraulic clamp 5 for cooperating with the hydraulic device, so that the die base and the hydraulic device can be quickly installed and disassembled.

[0035] In addition, a guide mechanism is provided on the periphery between the upper die seat 21 and the lower die seat 11, which can improve the directional accuracy and punching precision during the punching process, and also avoid the problem of easy breakage of the high-speed punch needle 24. Preferably, the guide mechanism includes a guide column 6 and a guide sleeve 7, wherein the guide sleeve 7 is arranged at the bottom of the upper die seat 21, and the guide column 6 is arranged at the top of the lower die seat 11, and is telescopically inserted into the guide sleeve 7, which has a simple structure and a good guiding effect.

[0036] The utility model replaces the elastic pressing seat of the traditional same equipment by setting a stripping plate 3, which is fixed during the punching process, and the distance between it and the knife edge plate 13 is just enough for the pre-punched plate to pass through, so that it does not affect the movement of the plate, and can prevent the pre-punched plate from moving up by supporting the top surface of the pre-punched plate when the needle is withdrawn, so that the high-speed punching needle 24 can be quickly separated from the plate. Compared with the existing equipment, the high-speed stamping die structure provided by the utility model can realize faster punching processing action, and at the same time, it also has the advantages of less action and less heat generation.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or in communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.

[0041] In the present utility model, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0042] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A high-speed stamping die structure, characterized in that: It includes a lower die assembly, an upper die assembly and a stripper plate; The lower die assembly comprises a lower die base, a lower cover plate and a knife edge plate; the knife edge plate is installed on the top of the lower die base through the lower cover plate and is provided with a knife edge in a vertical direction; The upper die assembly comprises an upper die seat, an upper cover plate, a fixed needle plate and a high-speed punch; the upper die seat is opposite to the lower die seat and is located on the top of the lower die seat, the fixed needle plate is installed at the bottom of the upper die seat through the upper cover plate, and is opposite to the knife edge plate, and the high-speed punch is vertically installed at the bottom of the fixed needle plate and points to the knife edge; The stripping plate is relatively fixedly arranged between the lower mold assembly and the upper mold assembly; there are two stripping plates, which are symmetrically arranged on both sides of the top of the blade plate and located on both sides of the fixed needle plate, and the distance from the bottom surface of the stripping plate to the top surface of the blade plate is greater than or equal to the thickness of the pre-punched sheet material.

2. A high-speed stamping die structure according to claim 1, characterized in that: The top surface of the stripping plate is installed through a shock-absorbing seat.

3. A high-speed stamping die structure according to claim 2, characterized in that: The shock-absorbing seat is a cast iron accessory.

4. A high-speed stamping die structure according to claim 1, characterized in that: The upper die base is movably mounted on the top of the lower die base through a hydraulic device.

5. A high-speed stamping die structure according to claim 4, characterized in that: The upper die base and the lower die base are both provided with a quick-disassembly and assembly hydraulic clamp that cooperates with the installation hydraulic device.

6. A high-speed stamping die structure according to claim 1, characterized in that: A guide mechanism is provided at the periphery between the upper die seat and the lower die seat.

7. A high-speed stamping die structure according to claim 6, characterized in that: The guide mechanism comprises a guide column and a guide sleeve. The guide sleeve is arranged at the bottom of the upper die seat, and the guide column is arranged at the top of the lower die seat and is telescopically inserted into the guide sleeve.

8. A high-speed stamping die structure according to claim 1, characterized in that: A stop plate which assists in stabilizing the punching needle is arranged between the upper cover plate and the fixed needle plate.

9. A high-speed stamping die structure according to claim 8, characterized in that: The fixed needle plate is provided with a punch needle mounting hole, the punch needle mounting hole is a stepped hole, the high-speed punch needle passes through the punch needle mounting hole, and a limiting head is provided on the top to limit the upper space of the punch needle mounting hole.

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