Air cutting structure and die comprising same

Abstract

The invention provides an air cutting structure and a die comprising the air cutting structure, the air cutting structure comprises an air cutting material pressing rib and an air cutting trimming knife, the air cutting trimming knife is arranged on a trimming female die insert of an upper die of the die, the air cutting material pressing rib is arranged on the air cutting trimming knife, and the outer edge of the air cutting material pressing rib protrudes out of the outer edge face of the air cutting trimming knife; when the die is closed, the air-cutting pressing rib is used for pressing materials, and the air-cutting trimming knife is used for trimming. When the die is closed, due to the fact that the air cutting material pressing rib is arranged on the air cutting trimming knife, and the outer edge of the air cutting material pressing rib protrudes out of the outer edge face of the air cutting trimming knife, a material pressing core is omitted, the air cutting material pressing rib is directly used for material pressing, and therefore the air cutting trimming knife can be used for trimming when the air cutting material pressing rib is used for material pressing; and during the return stroke of the die, the air-cutting material pressing rib also retreats at the moment that the air-cutting trimming cutter retreats, so that the function of removing the waste materials is completed instantly, and the production defect that the waste materials are blocked in the die can be effectively avoided.

Description

Technical Field

[0001] This invention belongs to the field of vehicle parts manufacturing technology, specifically relating to a cut-out structure and a mold containing the cut-out structure. Background Technology

[0002] The finishing stamping of automotive inner and outer panel stamping parts after drawing is achieved using finishing stamping dies. The finishing stamping die operates on a press, and pressing and ejecting are important functions of the finishing stamping die. The traditional pressing method uses a pressing core to press the material, but this structure easily leads to the pressing core not being able to eject smoothly after trimming, causing stuck scrap and resulting in production defects where scrap cannot be discharged.

[0003] Therefore, how to design a cut-out structure and mold to better avoid production defects such as material jamming in the mold has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a cut-out structure and mold to solve the above-mentioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hollow-cutting structure includes a hollow-cutting pressure rib and a hollow-cutting trimming blade. The hollow-cutting trimming blade is disposed on a trimming die insert of the upper mold. The hollow-cutting pressure rib is disposed on the hollow-cutting trimming blade, and the outer edge of the hollow-cutting pressure rib protrudes from the outer edge surface of the hollow-cutting trimming blade. When the mold is closed, the hollow-cutting pressure rib is used for pressing material, and the hollow-cutting trimming blade is used for trimming.

[0007] Preferably, the air-cutting pressure bar is located at the middle position of the outer edge surface of the air-cutting trimming blade.

[0008] Preferably, the air-cutting pressure bar is embedded in the air-cutting trimming blade.

[0009] Preferably, the shape of the air-cutting pressure bar is the same as the shape of the air-cutting trimming blade.

[0010] Preferably, the empty-cutting trimming blades are arranged opposite each other on the left and right sides of the trimming die insert, and the empty-cutting pressure ribs are arranged on the outer edge surfaces of both empty-cutting trimming blades.

[0011] A mold includes a cut-out structure, wherein the cut-out structure is any of the cut-out structures described above.

[0012] Preferably, it includes two trimming die inserts, each of which is provided with the cut structure.

[0013] Preferably, each of the trimming die inserts has two empty-cutting trimming blades arranged opposite each other on the left and right sides, and each of the empty-cutting trimming blades has an empty-cutting pressure rib on its outer edge surface.

[0014] The beneficial effects of this invention are as follows:

[0015] The air-cutting structure and mold including the air-cutting structure of the present invention, when the mold is closed, because the air-cutting pressure rib is set on the air-cutting trimming knife and the outer edge of the air-cutting pressure rib protrudes from the outer edge surface of the air-cutting trimming knife, the pressure core in the prior art can be eliminated. Instead, the air-cutting pressure rib protruding from the outer edge surface of the air-cutting trimming knife is used directly for pressing the material. Thus, the air-cutting pressure rib can be used to trim the material with the air-cutting trimming knife while pressing the material. When the mold returns, the air-cutting pressure rib also retracts at the instant the air-cutting trimming knife retracts, instantly completing the waste removal function, thereby effectively avoiding the production defect of waste jamming in the mold. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0017] Figure 1 A schematic diagram of the cut structure provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a mold provided in an embodiment of the present invention.

[0019] Marked in the attached diagram:

[0020] 11. Trimming die insert; 12. Upper die; 21. Air-cutting trimming blade;

[0021] 31. Air cutting and pressing ribs. Detailed Implementation

[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0024] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0025] In the description of this invention, it should 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," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this 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 invention according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] like Figure 1As shown, this embodiment of the invention provides a hollow cutting structure, which includes a hollow cutting pressure rib 31 and a hollow cutting trimming blade 21. The hollow cutting trimming blade 21 is disposed on the trimming concave die insert 11 of the upper die 12 of the mold, and the hollow cutting pressure rib 31 is disposed on the hollow cutting trimming blade 21. The outer edge of the hollow cutting pressure rib 31 protrudes from the outer edge surface of the hollow cutting trimming blade 21. When the mold is closed, the hollow cutting pressure rib 31 is used for pressing material, and the hollow cutting trimming blade 21 is used for trimming.

[0030] Furthermore, the air-cutting pressure rib 31 is located at the middle position of the outer edge surface of the air-cutting trimming knife 21, so that the air-cutting pressure rib 31 can be used to better press the material, and also ensure that the trimming operation of the air-cutting trimming knife is not affected.

[0031] Specifically, the air-cutting pressure rib 31 is embedded in the air-cutting trimming knife 21, thereby making it easier to set the air-cutting pressure rib on the air-cutting trimming knife.

[0032] Preferably, the shape of the air-cutting pressure bar 31 is the same as the shape of the air-cutting trimming blade 21.

[0033] Specifically, the trimming die insert 11 has the empty cutting trimming blades 21 arranged opposite to each other on its left and right sides, and the empty cutting pressure ribs 31 are arranged on the outer edge surfaces of the two empty cutting trimming blades 21, so as to better meet the trimming requirements and avoid the problem of waste material stuck in the mold.

[0034] This invention also provides a mold comprising a cut-out structure, wherein the cut-out structure is any of the cut-out structures described above.

[0035] The air-cutting structure and mold containing the air-cutting structure provided in this embodiment of the invention, when the mold is closed, because the air-cutting pressure rib 31 is set on the air-cutting trimming knife 21 and the outer edge of the air-cutting pressure rib protrudes from the outer edge surface of the air-cutting trimming knife 21, the pressure core in the prior art can be eliminated. Instead, the air-cutting pressure rib protruding from the outer edge surface of the air-cutting trimming knife 21 is used to press the material. Thus, the air-cutting pressure rib 31 can trim the material with the air-cutting trimming knife 21 while pressing the material. When the mold returns, the air-cutting pressure rib also retracts at the instant the air-cutting trimming knife retracts, instantly completing the waste removal function, thereby effectively avoiding the production defect of the mold jamming waste.

[0036] Furthermore, such as Figure 2 As shown, the mold provided in this embodiment of the invention includes two trimming die inserts 11, and both trimming die inserts are provided with the cut structure, so as to better avoid the problem of waste material getting stuck in the mold.

[0037] Specifically, each of the trimming die inserts 11 has two empty-cutting trimming blades arranged opposite each other on the left and right sides. Each empty-cutting trimming blade has an empty-cutting pressure rib on its outer edge surface. This ensures that each empty-cutting trimming blade has an empty-cutting pressure rib for pressing the material, so that the empty-cutting trimming blade and the empty-cutting pressure rib retract simultaneously during the mold return stroke, instantly completing the removal of waste material and preventing the mold from getting stuck with waste material.

[0038] During the closing process of the die and punch, the mold of the present invention does not require the pressure core of the prior art for pressing the material. Instead, it directly uses the protruding blanking pressure rib on the outer edge of the blanking trimming knife to press the material. The mold continues to close to the limit point until the trimming work is completed. Then the mold returns, and the blanking trimming knife and blanking pressure rib retract, completing the separation of the waste material, the product part and the mold. This effectively avoids the production defects that occur when the waste material is stuck in the mold due to the use of the traditional pressure core.

[0039] The mold of this invention does not require the design of the pressure core in the prior art. The air-cutting trimming knife can also use the air-cutting pressure rib to press the material during the trimming process, realizing the simultaneous pressing and trimming functions. When the mold returns, the air-cutting trimming knife can instantly remove the waste material, which effectively solves the production defect of the pressure core of the traditional trimming mold that is prone to jamming the waste material. At the same time, it has technical advantages such as simplified mold structure, convenient operation, saving mold design costs, reducing noise, and being green and environmentally friendly.

[0040] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A hollow-cut structure, characterized in that, It includes a blank cutting pressure rib and a blank cutting trimming blade. The blank cutting trimming blade is set on the trimming cavity insert of the upper mold, and the blank cutting pressure rib is set on the blank cutting trimming blade. The outer edge of the blank cutting pressure rib protrudes from the outer edge surface of the blank cutting trimming blade. When the mold is closed, the blank cutting pressure rib is used to press the material, and the blank cutting trimming blade is used to trim the material.

2. The hollow-cut structure according to claim 1, characterized in that, The air-cutting pressure bar is located at the middle position of the outer edge surface of the air-cutting trimming blade.

3. The hollow-cut structure according to claim 1, characterized in that, The air-cutting pressure bar is embedded in the air-cutting trimming blade.

4. The hollow-cut structure according to claim 1, characterized in that, The shape of the air-cutting pressure bar is the same as the shape of the air-cutting trimming knife.

5. The hollow-cut structure according to claim 1, characterized in that, The trimming die insert has the empty-cutting trimming blades arranged opposite each other on its left and right sides, and the empty-cutting pressure ribs are arranged on the outer edge surfaces of both empty-cutting trimming blades.

6. A mold, characterized in that, It includes a cut-out structure, wherein the cut-out structure is the cut-out structure as described in any one of claims 1 to 5.

7. The mold according to claim 6, characterized in that, It includes two trimming die inserts, each of which is provided with the cut structure.

8. The mold according to claim 7, characterized in that, Each of the trimming die inserts has two empty-cutting trimming blades arranged opposite each other on the left and right sides, and each of the empty-cutting trimming blades has an empty-cutting pressure rib on its outer edge surface.

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