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One-time demolding component for 465QF cast engine cylinder block blank modelling

An engine block, one-off technology, applied in casting and molding equipment, molds, mold components, etc., can solve problems such as poor exhaust, white mud drilling into the cavity, and air holes, and achieve the effect of convenient use.

Inactive Publication Date: 2017-05-31
CHENGDU BAIFULONG PRECISION MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this molding has the following defects: 1. Each time a large or small shape needs to be placed, the time is 4-5 seconds. 2. After the molding sand fills the shape, the loose block needs to be taken out, and the time is 2-3 seconds.
3. The diameter of the finished process hole When closing the box, white mud should be applied around the process holes of large and small shapes, and the time is 20-30 seconds; and during the process of plastering the white mud, it is very easy to block the exhaust part of the process holes, resulting in poor exhaust and air holes; and wipe Repeated bowing operation when processing the white mud in the hole, the labor intensity is high, there will be a risk of the white mud drilling into the cavity, resulting in the white mud in the process hole, and the product is scrapped

Method used

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  • One-time demolding component for 465QF cast engine cylinder block blank modelling
  • One-time demolding component for 465QF cast engine cylinder block blank modelling
  • One-time demolding component for 465QF cast engine cylinder block blank modelling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 , a 465QF casting engine block blank modeling disposable component, including rounding table 1, the rounding table 1 is opened with a connecting hole 2, the top of the connecting hole 2 and the top of the rounding table 1 are at the same level, the inner wall of the connecting hole 2 There are screw grooves 3 on it.

[0030] The lower end of the rounding table 1 is provided with a cylindrical protruding head 4 whose diameter is smaller than that of the bottom end of the rounding table 1, and the cylindrical protruding head 4 is longitudinally concentric with the rounding table 1.

[0031] The diameter of the top of rounding table 1 is The diameter of the cylindrical convex head 4 is

[0032] The disposable demoulding member can be molded at one time, and the rounding table 1 and the cylindrical protrusion 4 can also be fixedly connected or detachably connected.

Embodiment 2

[0034] Such as figure 2 , a 465QF cast engine block blank molding mold, including a mold body 5, the mold body 5 is provided with figure 1 The threaded groove 3 matches the screw 6.

Embodiment 3

[0035] Embodiment 3, a kind of casting method of 465QF casting engine block, comprises the following steps:

[0036] Step A:

[0037] ①Moulding and matching sand, the mold is equipped with figure 2 Screw 6 in.

[0038] ② will figure 1 The connecting hole 2 of the one-time demoulding member is sleeved on the screw 6 and tightened.

[0039] ③Moulding and demoulding, the one-time demoulding member and the mold are released from the blank molding at the same time, and the outer cross section of the blank molding is formed with a diameter of process holes. Because it is demoulded together with the mold, the one-time demoulding component does not need to be reinstalled in the shape when working again.

[0040] Step B: preparation of the water jacket core, the water jacket core has a plug on the water jacket core. Step B is prepared synchronously with step A.

[0041] Step C: Combine the molding with the water jacket core, insert the plug of the water jacket core into the p...

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PUM

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Abstract

The invention discloses a one-time demolding component and mold for 465QF cast engine cylinder block blank modelling. The one-time demolding component comprises an inverted cone frustum. A connecting hole is formed in the inverted cone frustum. The top end of the connecting hole and the top end of the inverted cone frustum are located on the same horizontal plane. Compared with the prior art, one-time demolding can be realized, and no white clay needs to be smeared in the subsequent mold assembling process.

Description

technical field [0001] The invention relates to the preparation of an engine cylinder block, in particular to a disposable demoulding member for 465QF cast engine cylinder blank molding. Background technique [0002] In the molding process of the casting engine block blank molding, because it is necessary to form a process hole on the molding sand (the process hole matches the process plug of the water jacket core), the loose block is used for molding. The structure of the loose block is shown in image 3 , the movable block is composed of a round table 1, and a jack 2 is opened in the round table 1. Before modeling, put the jack 2 of the movable block on the Figure 4 pin 4 of the mold 3 shown. [0003] But this moulding has following defect: 1, need to lay loose block every time to make big and small appearance, time is 4-5 seconds, 2, need take out loose block after molding sand fills shape, time is 2-3 seconds. 3. The diameter of the finished process hole When closing...

Claims

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Application Information

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IPC IPC(8): B22C9/24
CPCB22C9/24
Inventor 李明
Owner CHENGDU BAIFULONG PRECISION MACHINERY CO LTD