Mechanism for preventing residue of automobile stamping die lug

Abstract

The utility model provides a mechanism of preventing automobile stamping die lifting lug residue, include: car die, including a plurality of lifting lug on the car die, be provided with end face, side and die groove face respectively on the car die, end face and die groove face opposite setting, side setting according to the periphery of car die, residue collection block, place the surface of car die, and set up respectively with lifting lug one -to -one, residue collection block and the surface of car die contact, the utility model discloses a new exhaust is added, and the collection residue discharge mode is added, reaches the purpose of completely absorbing residue. Can effectively solve the problem of car die bottom surface lifting lug residue, compared with traditional technology, the process is more accurate, the effect is more obvious, provides powerful data support for the improvement of casting quality, and the prior art can only use the mode of placing big investigation, through residue discharge, and can not completely absorb the residue produced due to the lifting lug structure.

Description

Technical Field

[0001] This utility model belongs to the field of automotive molds, specifically a mechanism for preventing residue from the lifting lugs of automotive stamping molds. Background Technology

[0002] As a core process equipment in the automotive manufacturing industry, automotive molds directly determine the quality and production efficiency of automotive parts due to their precision, performance, and service life. Lost foam casting, with its advantages of near-net-shape forming, simplified processes, high dimensional accuracy, and ability to achieve integrated casting of complex structures, has become one of the mainstream casting processes for automotive molds (especially large body panel molds and chassis structural component molds). In the lost foam casting process, the lifting lugs, a safety component of automotive molds, are critical load-bearing parts during lifting, transportation, installation, and subsequent use. Their structural integrity and surface quality are crucial for safe mold production. Currently, industry efforts to control lost foam casting residues mainly focus on optimizing venting of the integral cavity, improving foam materials, or enhancing coating performance. A specific residue prevention technology solution for the unique structure of the lifting lugs in automotive molds has not yet been developed. Existing technologies suffer from insufficient specificity, unstable residue prevention effects, and potential impact on the performance of the lifting lug itself, making it difficult to meet the stringent safety performance requirements of automotive molds for lifting lugs.

[0003] Currently, a common technical challenge in the lost foam casting process for casting automotive mold lifting lugs is the generation of residue above the lugs. This residue mainly originates from the following sources: Firstly, during the high-temperature molten metal filling process, the liquid or solid hydrocarbon residues generated by the pyrolysis of the lost foam pattern are not discharged in time or completely, and accumulate in the dead corners of the cavity above the lifting lugs or in areas with poor venting. Secondly, impurities mixed in the molding sand (such as metal scraps, refractory material particles, etc.) are carried to the top of the lifting lugs during the flow of molten metal; Third, the coating layer may partially peel off at high temperatures, or reaction products may adhere to the surface of the lifting lugs, forming residue. This residue not only causes excessive surface roughness and dimensional inaccuracies, but also creates internal porosity and inclusions, severely weakening the mechanical properties of the lifting lugs. During mold lifting, this can lead to serious safety accidents such as lug breakage or mold collapse. Furthermore, it increases the workload of subsequent cleaning and polishing processes, reducing production efficiency and increasing manufacturing costs.

[0004] In summary, this utility model provides a mechanism for preventing residue from the lifting lugs of automotive stamping dies, thereby solving the aforementioned problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a mechanism for preventing residue from the lifting lugs of automotive stamping dies. This addresses the issue in the prior art where liquid or solid hydrocarbon residues generated during the pyrolysis of lost foam patterns in the high-temperature molten metal filling process are not discharged in a timely and thorough manner, accumulating in the dead corners of the cavity or areas with poor venting above the lifting lugs.

[0006] A mechanism for preventing residue from the lifting lugs of automotive stamping dies includes: An automobile mold, the automobile mold including multiple lifting lugs, the automobile mold being respectively provided with end face, side face and mold groove face, the end face and mold groove face being arranged opposite to each other, the side face being arranged according to the outer perimeter of the automobile mold; A residue collection block is placed on the surface of the car mold and is respectively set with one of the lifting lugs. The residue collection block is in contact with the surface of the car mold. There are multiple sets of venting risers, which are respectively located on the outside of the car mold and have gaps between them and the car mold.

[0007] Furthermore, the lifting lugs are respectively provided on the side of the car mold, and the lifting lugs are provided with lifting lug grooves. The lifting lugs are respectively provided along two opposite side surfaces.

[0008] Furthermore, the residue collection block is arranged according to the shape of the groove of the lifting lug and covers the surface of the lifting lug groove. The residue collection block is 10 mm thick and is disposed on the end face.

[0009] Furthermore, the vent is provided along the side of the car mold and does not contact the side.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model achieves complete slag absorption by adding venting and slag collection methods. It effectively solves the problem of slag residue on the bottom lifting lugs of automotive molds. Compared with traditional technologies, this device offers more precise processing and more significant results, providing strong data support for improving casting quality. Existing technologies can only utilize large-scale slag removal methods, which cannot completely absorb slag generated by the lifting lug structure. Compared with existing technologies, this device can precisely remove slag, thus ensuring quality.

[0011] 2. Based on the distribution law of residue, this utility model designs a "local guide protrusion" structure, which is a residue collection block, to address the dead corner of the cavity above the lifting lug where residue is prone to accumulate. This guides the molten metal to fill the mold smoothly and reduces residue retention. An exhaust structure, which is an exhaust riser, is set above the lifting lug. A "side-mounted exhaust hole" is designed to optimize the exhaust path, improve the exhaust efficiency of the lifting lug area, and promptly discharge foam pyrolysis residue. The optimized lifting lug cavity structure effectively prevents residue buildup while meeting mechanical performance requirements. Attached Figure Description

[0012] Figure 1 This utility model is a three-dimensional Figure 1 ; Figure 2 This utility model is a three-dimensional Figure 2 .

[0013] In the picture: 1. Automotive mold; 101. Mold groove surface; 102. Side surface; 103. End face; 2. Residue collection block; 3. Vent riser; 4. Hanging lugs. Detailed Implementation

[0014] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0015] like Figures 1-2 As shown, this utility model provides a mechanism for preventing residue from the lifting lugs of automotive stamping dies, comprising: The car mold 1 includes multiple lifting lugs 4. The car mold 1 is respectively provided with end face 103, side face 102 and mold groove face 101. The end face 103 and the mold groove face 101 are arranged opposite to each other, and the side face 102 is arranged around the outer periphery of the car mold 1. The residue collection block 2 is placed on the surface of the car mold 1 and is respectively set with the lifting lug 4 one by one. The residue collection block 2 is in contact with the surface of the car mold 1. There are multiple sets of vent risers 3, which are respectively located on the outside of the car mold 1 and are separated from the car mold 1 by a gap.

[0016] As one embodiment of this utility model, the lifting lugs 4 are respectively opened on the side 102 of the automobile mold 1, and the lifting lugs 4 are provided with lifting lug grooves. The lifting lugs 4 are respectively arranged along two opposite side 102.

[0017] As one embodiment of this utility model, the residue collection block 2 is set according to the groove shape of the lifting lug 4 and covers the surface of the lifting lug groove. The residue collection block 2 has a thickness of 10 mm and is set on the end face 103.

[0018] In one embodiment of this utility model, the vent riser 3 is provided along the side 102 of the automobile mold 1 and does not contact the side 102.

[0019] The system consists of a dedicated exhaust vent 3 and a dedicated slag collection block 2 for slag removal, which are installed on the side of the lifting lugs 4 of the automobile mold 1.

[0020] During the molding sand filling process, the vent riser 3 is installed on the side in advance, keeping a certain distance from the car mold 1. After the main molding is completed, when turning over, the prepared 10mm residue collection block 2 is attached to the top of the four lifting lugs 4 of the car mold 1, and then the sand burying operation is carried out.

[0021] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A mechanism for preventing residue from the lifting lugs of automotive stamping dies, characterized in that, include: An automobile mold (1) includes multiple lifting lugs (4). The automobile mold (1) is provided with an end face (103), a side face (102) and a mold groove face (101). The end face (103) and the mold groove face (101) are arranged opposite to each other. The side face (102) is arranged around the outer periphery of the automobile mold (1). The residue collection block (2) is placed on the surface of the car mold (1) and is respectively set in correspondence with the lifting lug (4). The residue collection block (2) is in contact with the surface of the car mold (1). There are multiple sets of exhaust risers (3), which are respectively set on the outside of the car mold (1) and have gaps between them.

2. The mechanism for preventing residue from the lifting lugs of automotive stamping dies as described in claim 1, characterized in that, The lifting lugs (4) are respectively opened on the side (102) of the automobile mold (1), and the lifting lugs (4) are provided with lifting lug grooves. The lifting lugs (4) are respectively set along two opposite side (102).

3. The mechanism for preventing residue from the lifting lugs of automotive stamping dies as described in claim 1, characterized in that, The residue collection block (2) is set according to the groove shape of the lifting lug (4) and covers the surface of the lifting lug groove. The residue collection block (2) is 10 mm thick and is set on the end face (103).

4. The mechanism for preventing residue from the lifting lugs of automotive stamping dies as described in claim 1, characterized in that, The vent (3) is provided along the side (102) of the car mold (1) and does not contact the side (102).

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