CN203448646U - Quantitative pouring device for squeeze casting - Google Patents
Quantitative pouring device for squeeze casting Download PDFInfo
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- CN203448646U CN203448646U CN201320570525.XU CN201320570525U CN203448646U CN 203448646 U CN203448646 U CN 203448646U CN 201320570525 U CN201320570525 U CN 201320570525U CN 203448646 U CN203448646 U CN 203448646U
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Abstract
The utility model discloses a quantitative pouring device for squeeze casting, which comprises a squeezing cylinder, wherein the squeezing cylinder is sequentially connected with a pouring device and a smelting furnace through a transportation pipeline, a piston type punch is arranged in a forming cavity of the squeezing cylinder, the underside of the punch is fixedly connected with a push rod through a screw, the push rod is driven by an injection mechanism of a casting machine, the centers of the punch and the push rod are provided with a step hole in an up-to-down through mode, the step hole in the punch is provided with a pressure sensor, a sensor guide wire passes through the step hole in the push rod so as to enable the pressure sensor to be electrically connected with a control device, and the control device is in circuit connection with the pouring device through a guide wire of the pouring device. The quantitative pouring device for the squeeze casting, disclosed by the utility model, is simple in structure and easy to implement, and greatly improves the quantitative accuracy, improves the quality of castings, and reduces the rejection rate.
Description
Technical field
The utility model relates to extrusion casint, specifically refers to that a kind of pressure sensor and control device of utilizing quantitatively control extrusion casint casting metal liquation, and this method can realize extrusion casint drift pressure is detected in real time.
Background technology
Extrusion casint refers to certain liquid state or semi-solid-state metal is poured into mold cavity, by extruding drift, with certain extruding force, act on liquid metal, make it sufficient crystallising, solidify and be shaped, thereby obtain the method for the clean Accurate Shaping of a kind of material of required form part.This process is solidified liquid metal under higher pressure, can obtain heat treatable high-integrity casting.
In the method being shaped in existing extrusion casint, main manually cast or the simple apparatus for pouring of adopting poured into a mould, and under like this without the pouring procedure of feeding back, cannot accurately control the weight of molten metal.Facts have proved, molten metal is too much, although can formation of parts, foundry goods can have more a part and stay in squeeze cylinder, is unfavorable for the pickup of automatic part picking system, and waste material.If molten metal is very few, qualified part cannot be shaped.For the trend of above shortcoming and Extrution casting technique development, needs are a kind of can be quantitative, and the high pouring procedure of automaticity.
Drift pressure, specific pressure, is the key process parameter of extrusion casint.In Extrution casting technique process, conventionally utilizing to detect now drives the oil pressure of drift indirectly to measure drift pressure.Because the complicated heat-force coupling action between molten metal, squeeze cylinder and drift in injection process is used, the larger gap of physical presence between oil pressure and drift pressure, this has affected the precision detecting greatly, does not also utilize the control of drift pressure in extrusion casint process.In order to improve the quality of extrusion casint foundry goods, need a kind of can be accurately, the method for direct-detection drift pressure.
Utility model content
For above-mentioned technical problem, the utility model is intended to solve the problems of the technologies described above at least to a certain extent.
An object of the present utility model is to provide a kind of extrusion casint quantitative pouring apparatus.
To achieve these goals, the utility model adopts following measure:
A kind of extrusion casint quantitative pouring apparatus, comprise squeeze cylinder, described squeeze cylinder is connected with apparatus for pouring and smelting furnace successively by transmission pipeline, in the forming cavity of described squeeze cylinder, be provided with drift in the form of piston, described drift below is fixedly connected with the push rod by the injection mechanism driving of casting machine by screw, be provided with shoulder hole the center up/down perforation of described drift and push rod, the shoulder hole that is positioned at drift is provided with pressure sensor, sensor conductor is electrically connected to described pressure sensor through the shoulder hole in push rod with control device, described control device is connected by apparatus for pouring wire circuit with apparatus for pouring.
Further, described shoulder hole top interior, that be positioned at pressure sensor is provided with through forming cavity metal detection bar, like this, because pressure sensor is without directly contacting with high temperature fluent metal, can select relatively cheap pressure sensor, cost-saving.
Another object of the present utility model is to provide a kind of and applies the method that extrusion casint quantitative pouring apparatus carries out quantitative pouring, and adopts following technical scheme:
Apply the method that described extrusion casint quantitative pouring apparatus carries out quantitative pouring, comprise step:
A, in control device, set metallic solution pressure parameter and drift pressure parameter, preheating squeeze cylinder and transmission pipeline are to temperature required simultaneously, and preheated mold is to temperature required
B, unlatching apparatus for pouring are to squeeze cylinder casting metal liquation, pressure sensor is transferred to control device by the pressure signal detecting, according to the metallic solution pressure parameter setting, draw the weight of the molten metal of having poured into a mould, when the detected value of pressure sensor reaches predetermined value, show that casting metal liquation reaches scheduled volume, control device sends control signal to apparatus for pouring, and apparatus for pouring stops cast;
C, mould closure, up with back punching head, by the molten metal injection in squeeze cylinder in the die cavity of mould, drift is under the effect of push rod, molten metal in die cavity is applied certain pressure and keeps certain hour, in this course, the pressure sensor that is arranged in drift directly or by metal detection bar, detect in real time the force value of drift, and signal is transferred to control device, control device is compared detected value with drift pressure parameter, and according to result relatively, drift pressure is regulated;
After d, pressurize complete, drift is descending, and mould is opened, and takes out foundry goods, preserves the historical data of pressure sensor, for comparing according to the mass parameter of described historical data and foundry goods, so that the optimization to technological parameter with timed unit.
Further, described in step c, according to result relatively, drift pressure is regulated specifically and is comprised:
When detected value is less than the drift pressure parameter of technological requirement, control device sends corresponding signal, increases the force value of drift, and when detected value is greater than drift pressure parameter, control device sends corresponding signal, reduces drift force value.
The utility model has following outstanding feature compared with prior art:
1, the utility model method has utilized the molten metal mode in pressure sensor direct-detection pressure chamber quantitatively to control cast, greatly improved quantitative accuracy, the series of problems of effectively having avoided molten metal cannot accurate quantification to bring, also the quality that has improved foundry goods, has reduced percent defective simultaneously.
2, the utility model method has been installed a pressure sensor at punch-center, and it can detect in real time drift pressure in extrusion casint process; This is a kind of method of direct-detection drift pressure, and to compare precision higher with traditional drift pressure detection method.
3, because the utility model apparatus structure is simple, between each several part, connect also comparatively easyly, do not need more mechanical part, be convenient to realize.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of the pressure sensor of the utility model embodiment 1;
Fig. 2 is the general assembly structural representation of the utility model embodiment 1;
Fig. 3 is the scheme of installation of the pressure sensor of the utility model embodiment 2;
Fig. 4 is the general assembly structural representation of the utility model embodiment 2;
Wherein: 1-squeeze cylinder; 2-drift; 3-pressure sensor; 4-push rod; 5-screw; 6-smelting furnace; 7-control device; 8-apparatus for pouring; 9-sensor conductor; 10-apparatus for pouring wire; 11-transmission pipeline; 12-metal detection bar.
The specific embodiment
By following example, in conjunction with Figure of description reader utility model, be described further, but embodiment of the present utility model is not limited only to this.
Embodiment 1
As shown in Figure 1 to Figure 2, the casting machine that the present embodiment is used is that the Horizontal type extrusion casting machine of 250 tons is produced aluminium alloy stepped plate, and the apparatus for pouring using is the electromagnetic pump of EMPS-LC type.As shown in Figure 2, a kind of extrusion casint quantitative pouring apparatus, comprise squeeze cylinder 1, described squeeze cylinder 1 is connected with apparatus for pouring 8 and smelting furnace 6 successively by transmission pipeline 11, in the forming cavity of described squeeze cylinder 1, be provided with drift 2 in the form of piston, described drift 2 belows are fixedly connected with the push rod 4 by the injection mechanism driving of casting machine by screw 5, be provided with shoulder hole the center up/down perforation of described drift 2 and push rod 4, the shoulder hole that is positioned at drift 2 is provided with pressure sensor 3, sensor conductor 9 is electrically connected to described pressure sensor 3 through the shoulder hole in push rod 4 with control device 7, described control device 7 is connected by apparatus for pouring wire 10 circuit with apparatus for pouring 8.
Embodiment 2
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is: described shoulder hole top interior, that be positioned at pressure sensor 3 is provided with through forming cavity metal detection bar, like this, because pressure sensor 3 is without directly contacting with high temperature fluent metal, can select relatively cheap pressure sensor, cost-saving.
Embodiment 3
Apply the method that described extrusion casint quantitative pouring apparatus carries out quantitative pouring, comprise step:
A, in control device 7, set metallic solution pressure parameter and drift pressure parameter, preheating squeeze cylinder (1) and transmission pipeline are 11 to 280 ℃ simultaneously, preheated mold to 280 ℃;
B, unlatching apparatus for pouring 8 are to squeeze cylinder 1 casting metal liquation, pressure sensor 3 is transferred to control device 7 by the pressure signal detecting, according to the metallic solution pressure parameter setting, draw the weight of the molten metal of having poured into a mould, when the detected value of pressure sensor 3 reaches predetermined value, show that casting metal liquation reaches scheduled volume, control device 7 sends control signal to apparatus for pouring 8, and apparatus for pouring 8 stops cast;
C, mould closure, up with back punching head 2, by the molten metal injection in squeeze cylinder 1 in the die cavity of mould, drift 2 is under the effect of push rod 4, molten metal in die cavity is applied certain pressure and keeps certain hour, in this course, the pressure sensor 3 that is arranged in drift 2 directly or by metal detection bar 12 detects the force value of drift 2 in real time, and signal is transferred to control device 7, control device 7 is compared detected value with drift pressure parameter, and according to result relatively, drift pressure is regulated;
After d, pressurize complete, drift 2 is descending, and mould is opened, and takes out foundry goods, and the historical data of preserving pressure sensor 3 with timed unit 7, for comparing according to the mass parameter of described historical data and foundry goods, so that the optimization to technological parameter.
Described in step c, according to result relatively, drift pressure is regulated specifically and is comprised:
When detected value is less than the drift pressure parameter of technological requirement, control device 7 sends corresponding signal, increases the force value of drift 2, and when detected value is greater than drift pressure parameter, control device 7 sends corresponding signal, reduces the force value of drift 2.
The quality that the device that the present embodiment extrusion casint quantitative pouring is controlled is set alloy aluminum liquation is 2kg, and the flow of electromagnetic pump is (5 ~ 0.5) L/h, quality error scope (0 ~ 0.05) kg.
Above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in the protection domain of the utility model claim.
Claims (2)
1. an extrusion casint quantitative pouring apparatus, comprise squeeze cylinder (1), described squeeze cylinder (1) is connected with apparatus for pouring (8) and smelting furnace (6) successively by transmission pipeline (11), in the forming cavity of described squeeze cylinder (1), be provided with drift in the form of piston (2), described drift (2) below is fixedly connected with the push rod (4) by the injection mechanism driving of casting machine by screw (5), it is characterized in that: be provided with shoulder hole the center up/down perforation of described drift (2) and push rod (4), the shoulder hole that is positioned at drift (2) is provided with pressure sensor (3), sensor conductor (9) is electrically connected to described pressure sensor (3) through the shoulder hole in push rod (4) with control device (7), described control device (7) is connected by apparatus for pouring wire (10) circuit with apparatus for pouring (8).
2. extrusion casint quantitative pouring apparatus according to claim 1, is characterized in that: the metal detection bar (12) that described shoulder hole is interior, top that be positioned at pressure sensor (3) is provided with through forming cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570525.XU CN203448646U (en) | 2013-09-16 | 2013-09-16 | Quantitative pouring device for squeeze casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570525.XU CN203448646U (en) | 2013-09-16 | 2013-09-16 | Quantitative pouring device for squeeze casting |
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| Publication Number | Publication Date |
|---|---|
| CN203448646U true CN203448646U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320570525.XU Expired - Fee Related CN203448646U (en) | 2013-09-16 | 2013-09-16 | Quantitative pouring device for squeeze casting |
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| CN (1) | CN203448646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624236A (en) * | 2013-09-16 | 2014-03-12 | 华南理工大学 | Squeeze casting quantitative pouring device and method |
| CN116944463A (en) * | 2023-09-20 | 2023-10-27 | 江苏德优镁轻合金科技有限公司 | Discharging device for casting machine |
-
2013
- 2013-09-16 CN CN201320570525.XU patent/CN203448646U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624236A (en) * | 2013-09-16 | 2014-03-12 | 华南理工大学 | Squeeze casting quantitative pouring device and method |
| CN103624236B (en) * | 2013-09-16 | 2017-02-08 | 华南理工大学 | Squeeze casting quantitative pouring device and method |
| CN116944463A (en) * | 2023-09-20 | 2023-10-27 | 江苏德优镁轻合金科技有限公司 | Discharging device for casting machine |
| CN116944463B (en) * | 2023-09-20 | 2023-12-15 | 江苏德优镁轻合金科技有限公司 | Discharging device for casting machine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20160916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |