Exhaust insert of counter-pressure casting mold
By machining a grid-like gap and cross groove structure on the venting insert of the differential pressure casting mold, the problem of poor venting was solved, achieving good venting effect and high yield, and reducing production costs.
Patent Information
- Application Number
- CN202520819882.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-04-28
AI Technical Summary
Existing differential pressure casting mold venting inserts have limited venting effect in practical applications, are prone to clogging, and affect the quality of casting products.
The grid-like exhaust slots are machined by wire cutting at the profile end of the exhaust insert, and a groove is opened at the insertion end so that the groove intersects with the slot, ensuring that the gas is discharged through the groove on the back of the insert.
It improves exhaust efficiency, avoids product defects caused by poor exhaust, increases yield, and reduces production costs.
Smart Images
Figure CN223801526U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the differential pressure casting mould design field field, concretely relates to a differential pressure casting mould exhaust insert. BACKGROUND
[0002] In the differential pressure casting metal liquid filling process, the gas in the mould cavity should be discharged in time, otherwise it can cause defects such as blowhole.Usually through parting surface exhaust groove, exhaust plug, ejector sleeve gap, exhaust insert, etc. can realize the exhaust of the gas in the cavity, wherein the exhaust insert can be designed flexibly according to the shape of the casting, and it is an important cavity exhaust way, but at present, the exhaust insert generally increases exhaust groove around the insert, and the exhaust effect is limited in actual application, and the exhaust groove is easy to block, further affecting the exhaust effect, thereby affecting the product quality of the casting. SUMMARY
[0003] The utility model provides a differential pressure casting mould exhaust insert to solve the problem of poor exhaust in the prior art.
[0004] To achieve the above purpose, the utility model provides technical schemes as follows:
[0005] A differential pressure casting mould exhaust insert, comprising an embedded end and a profile end, the embedded end is provided with a groove, and the profile end is provided with a grid-shaped exhaust gap by wire cutting;
[0006] The bottom surface of the groove intersects with the exhaust gap.
[0007] Preferably, the width of the wire cutting is 0.2mm, and the distance between the mutually parallel wire cutting gaps is 6-8mm.
[0008] Preferably, the difference in processing depth of the transverse and longitudinal wire cutting gaps on the exhaust insert is 20mm, and the distance between the groove bottom plane on the back of the exhaust insert and the depth of the transverse and longitudinal wire cutting bottoms is both 10mm.
[0009] The utility model has the advantages that:
[0010] The utility model provides a differential pressure casting mould exhaust insert, a grid-shaped gap is wire cut on one side of the profile, a groove is processed on the back of the exhaust insert, the groove intersects with the wire cutting gap, in the differential pressure casting production, the gas in the mould cavity can be discharged from the groove on the back of the insert through the grid-shaped gap on the surface of the insert, the exhaust effect of the exhaust insert can be guaranteed, product defects caused by poor exhaust can be avoided, the finished product rate of the product is improved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0011] The description and drawings of the utility model constitute a part of the utility model and are used to provide further understanding of the utility model, the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:
[0012] Figure 1 It is a schematic view of exhaust insert of differential pressure casting mold,
[0013] Figure 2 It is a schematic view of groove of exhaust insert of differential pressure casting mold,
[0014] Figure 3 It is a schematic view of cutting surface of exhaust insert of differential pressure casting mold,
[0015] Figure 4 It is a schematic view of transverse and longitudinal cutting depth of exhaust insert of differential pressure casting mold,
[0016] Figure 5 It is a schematic view of cooperation mode of exhaust insert of differential pressure casting mold and mold. DETAILED DESCRIPTION
[0017] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0018] The following detailed description is exemplary description, and is aimed at providing further detailed description of the utility model. Unless otherwise specified, all technical terms used in the utility model are the same as the meanings understood by the general technical personnel in the field to which the utility model belongs. The terms used in the utility model are only for describing the specific embodiment, and are not intended to limit the exemplary embodiment according to the utility model.
[0019] Please refer to Figure 1 As shown in the drawings, the utility model provides an exhaust insert of differential pressure casting mold, the exhaust insert of differential pressure casting mold includes embedded end and profile end, the recess exists in the inside of the embedded end, the recess outside is the profile end of the exhaust insert, the profile end is processed in the mode of wire cutting, forms grid-shaped exhaust gap, so that larger exhaust gap area can be obtained on the profile.
[0020] The recess and the profile end after wire cutting intersect, as Figure 2 As shown, the gas can be discharged from the mold cavity through the profile exhaust gap and the recess.
[0021] In a specific embodiment, the upper part of the exhaust insert is processed in the size, as Figure 3As shown, the wire cutting width size is 0.2mm; the spacing between the mutually parallel wire cutting gaps is 6-8mm; and the number of the wire cutting gaps can be appropriately increased or decreased according to the size of the insert.
[0022] In a specific embodiment, the difference in the processing depth of the transverse and longitudinal wire cutting gaps on the exhaust insert is 20mm, the distance between the bottom plane of the back groove of the exhaust insert and the depth of the transverse and longitudinal wire cutting bottoms is both 10mm, as shown in Figure 4 As shown, to ensure that the exhaust insert has a good exhaust effect while having a certain structural strength. In the differential pressure casting production, the gas in the mold cavity can be discharged from the back groove of the insert through the grid-shaped gaps on the surface of the insert. The grid-shaped wire cutting of the utility model ensures that there are visible wire cutting gaps on the back of the insert, and the gas in the cavity is discharged from the back of the insert, rather than from the side, and the side of the mold matched with the insert does not leave a space gap.
[0023] In a specific embodiment, the improved differential pressure casting mold exhaust insert of the utility model is matched with the mold in the manner as shown in Figure 5 As shown, the exhaust gap on the upper mold surface side of the differential pressure casting mold exhaust insert is grid-shaped, is not easy to be blocked, and the internal gas passage of the insert is also partially grid-shaped structure, which can ensure smooth exhaust. Figure 5 The shape of the exhaust insert shown in the figure is only schematic, and the shape of the insert can be designed according to the specific mold exhaust needs.
[0024] The utility model inserts the grid-shaped exhaust gap on one side of the mold surface of the mold by wire cutting, and processes a groove on the back of the exhaust insert, so that the groove intersects with the wire cutting gap. In the differential pressure casting production, the gas in the mold cavity can be discharged from the back groove of the insert through the grid-shaped gaps on the surface of the insert. The utility model has the advantages of simple structure, strong universality, convenient and fast manufacturing and installation, low cost, can ensure that the exhaust insert has a good exhaust effect, avoid the casting product defects caused by poor exhaust, improve the product yield, and thus reduce the production cost.
[0025] As known from the technical common sense, the utility model can be realized by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are only examples in all aspects, and are not the only ones. All changes within the scope of the utility model or within the scope equivalent to the utility model are included in the utility model.
[0026] It should be explained finally: the above examples are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been explained in detail with reference to the above examples, the ordinary skilled in the art should understand that: the specific implementation of the utility model can still be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the utility model should be covered in the protection scope of the claims of the utility model.
Claims
1. A differential pressure casting mold vent insert, characterized by, The insert end is provided with a groove, and the profile end is provided with grid-shaped exhaust slits by wire cutting; The bottom surface of the groove intersects with the exhaust slits.
2. A differential pressure casting mold vent insert as described in claim 1, wherein, The width of the wire cutting is 0.2mm, and the distance between the parallel wire cutting slits is 6-8mm.
3. A vent insert for a differential pressure casting mold as defined in claim 1, wherein, The difference in processing depth between the transverse and longitudinal wire cutting slits on the exhaust insert is 20mm, and the distance between the bottom surface of the groove on the back of the exhaust insert and the bottom depth of the transverse and longitudinal wire cutting is both 10mm.