CN106881757B

CN106881757B - Ceramic body filling forming method

Info

Publication number: CN106881757B
Application number: CN201710091883.5A
Authority: CN
Inventors: 毛法坚; 倪永林
Original assignee: Lixil American Standard Sanitary Ware Manufacturing Shanghai Co Ltd
Current assignee: Li Zhu Technology (Shanghai) Co., Ltd.
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2019-03-08
Anticipated expiration: 2037-02-21
Also published as: CN106881757A

Abstract

A kind of ceramic body filling forming method, comprising: slip casting, lower slurry, mud injection molding prepares and mud casting.The present invention controls the liquid level in slip casting bucket by the first liquid level and the second liquid level, relative constant grouting pressure can be kept in slip casting, and pressure is smaller, prevent from die gap spillage, sustained height (default liquid level) is kept when ensuring that mud enters mold by horizontal level device before mud injection molding, it is ensured that the air in pipeline all empties and reduce the thickness difference between green body.

Description

Ceramic body filling forming method

Technical field

The present invention relates to ceramic fabrication technique more particularly to a kind of ceramic body filling forming methods.

Background technique

Ceramic product usually passes through casting, conventional procedure are as follows: the mud that raw material department adjusts is passed through by piston pump Pipeline is driven into mold, by starching height in liquid level tube control mold, after mud forms in gypsum mold, in mold Extra slurry is discharged in plasma discharge bucket by natural plasma discharge mode.Conventional procedure has the disadvantage in that

1, gypsum mold is directly entered for slurry by piston pump, it is larger for slurry pressure, cause mold spillage serious, live mud Pollution；

2, big for slurry pressure, starching speed is fast in mold, and the air in pipeline and mold has little time to be emptied completely, and causes not Good generation causes to generate thickness difference between first green body and last this green body: 0.5-0.7mm.

Summary of the invention

Based on this, in view of the above technical problems, a kind of ceramic body filling forming method is provided.

In order to solve the above technical problems, the present invention adopts the following technical scheme:

A kind of ceramic body filling forming method, comprising:

Slip casting: inlet pipe is opened, injects mud into the slip casting bucket being communicated with the atmosphere, the mud in the slip casting bucket When rising to the first liquid level, inlet pipe is closed, and carry out lower slurry；

Lower slurry: opening pulp feeding pipe, by mud injection point slurry pipe, until the mud in the slip casting bucket drops to the second liquid level When, pulp feeding pipe is closed, slip casting step is returned；

Mud injection molding prepares:

(1) during lower slurry, when the liquid level in the horizontal level device on point slurry pipe reaches default liquid level, lower slurry is closed Pipe, executes step (2), and the default liquid level is flushed with the inlet of mold；

(2) after the liquid level of horizontal level device and multiple Grouting Pipes on point slurry pipe maintains an equal level, under opening pulp feeding pipe continues Slurry, and return step (1) are carried out until the liquid level of the horizontal level device and Grouting Pipe maintains an equal level in the default liquid level Mud casting；

Mud casting: closing the horizontal level device, open the pulp feeding pipe, and the mud injection in slip casting bucket is more A mold carries out the molding of ceramic body, the injection molding liquid level is located at mold when the liquid level in mold reaches injection molding liquid level Outer top and it is lower than second liquid level.

This programme further include: after ceramic body molding, drawn back mud by closed recovery channel by diaphragm pump Into raw slurry tank.

Rear end of the slip casting bucket through pulp feeding pipe connection point slurry pipe, described point of slurry pipe are sequentially connected horizontal level from back to front The front end of device and multiple Grouting Pipes, this point slurry pipe connects closed recovery channel, the multiple Grouting Pipe point by diaphragm pump Not Lian Jie a mold, the top of the mold has the tube body of insertion mold.

The first liquid level sensor and the second liquid level for detecting liquid level are respectively provided in the slip casting bucket and mold Sensor, the first solenoid valve and second solenoid valve are respectively equipped on the inlet pipe and pulp feeding pipe, and first liquid level passes Sensor, the second liquid level sensor, the first solenoid valve, second solenoid valve, horizontal level device and diaphragm pump with a PLC controller Connection, the PLC controller detect the liquid level in the slip casting bucket by the first liquid level sensor, and the PLC controller passes through Second liquid level sensor detects the liquid level in the mold, and the PLC controller is opened or closed by first solenoid valve Inlet pipe, the PLC controller open or close pulp feeding pipe by the second solenoid valve.

The oblique lower side for starching pipe with described point of the Grouting Pipe is connect, horizontal by 10-15 ° of angle.

The slip casting bucket is transparent drum.

The present invention controls the liquid level in slip casting bucket by the first liquid level and the second liquid level, and phase can be kept in slip casting To constant grouting pressure, and pressure is smaller, prevents before die gap spillage, mud injection molding through horizontal level device come really It protects when mud enters mold and keeps sustained height (default liquid level), it is ensured that the air in pipeline is all between emptying and reduction green body Thickness difference.

Detailed description of the invention

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments:

Fig. 1 is the principle of the present invention figure；

Fig. 2 is Grouting Pipe and a point attachment structure schematic diagram for slurry pipe of the invention；

Fig. 3 is connecting structure for electrical equipment schematic diagram of the invention.

Specific embodiment

As shown in Figure 1-3, a kind of ceramic body filling forming method, comprising:

One, slip casting: inlet pipe 120 is opened, mud is injected into the slip casting bucket 110 being communicated with the atmosphere, until slip casting bucket 110 When interior mud rises to the first liquid level L1, inlet pipe is closed, and carry out lower slurry.

Two, lower slurry: opening pulp feeding pipe 130, by mud injection point slurry pipe 140, until the mud in slip casting bucket 110 drops to When the second liquid level L2, pulp feeding pipe 130 is closed, returns to slip casting step.

Three, mud injection molding prepares:

(1) it during lower slurry, when the liquid level in the horizontal level device 150 on point slurry pipe 140 reaches default liquid level, closes Pulp feeding pipe is closed, is executed step (2)；

Wherein, liquid level is preset to flush with the inlet of mold 190.

(2) after the liquid level of horizontal level device 150 and multiple Grouting Pipes 160 on point slurry pipe 140 maintains an equal level, lower slurry is opened Pipe 130 continues lower slurry, and return step (1), until the liquid level of horizontal level device 150 and Grouting Pipe 160 maintains an equal level above-mentioned pre- If when liquid level, carrying out mud casting.

Four, mud casting: closing horizontal level device 150, opens pulp feeding pipe 130, and the mud in slip casting bucket 110 is infused Enter multiple molds 190, when the liquid level in mold 190 reaches injection molding liquid level, carries out the molding of ceramic body.

Wherein, injection molding liquid level is located at the top outside mold and lower than the second liquid level L2.

Five, after ceramic body molding, mud is withdrawn by closed recovery channel 180 by original by diaphragm pump 170 Expect to prevent impurity in slurry tank and be mixed into mud, cause bad, diaphragm pump 170 is controlled by PLC controller 198, avoids occurring to overflow Slurry.

Traditional approach is open type overfall, is easily mixed into impurity, pollutes mud, and be to manually control when plasma discharge, it may occur that is returned Slurry bucket, which is overflow, starches.

The present invention controls the liquid level in slip casting bucket 110 by the first liquid level L1 and the second liquid level L2, can in slip casting To keep relative constant grouting pressure, and pressure is smaller, prevents before die gap spillage, mud injection molding through horizontal liquid Position device 150 keeps sustained height (default liquid level) when ensuring that mud enters mold, it is ensured that air in pipeline all emptying and Reduce the thickness difference between green body.The position of first liquid level L1 is higher than the second liquid level L2.

Wherein, slip casting bucket 110 connects inlet pipe 120, and one end through the connection point slurry pipe 140 of pulp feeding pipe 130, point slurry pipe 140 are sequentially connected horizontal level device 150 and multiple Grouting Pipes 160 from back to front, and the other end of this point slurry pipe 160 passes through diaphragm The closed recovery channel 180 of 170 connection of pump, multiple Grouting Pipes 160 are separately connected a mold 190, and multiple molds 190 are along a point slurry 140 direction of pipe, which is successively spaced, to be set on a bracket 199, and the top of each mold 190 has the tube body of insertion mold, to make to infuse Mould liquid level is located above mold.

The first liquid level sensor 111 and second for detecting liquid level is respectively provided in slip casting bucket 110 and mold 190 The first solenoid valve 121 and second solenoid valve 131 are respectively equipped on liquid level sensor 191, inlet pipe 120 and pulp feeding pipe 130, First liquid level sensor 111, the second liquid level sensor 191, the first solenoid valve 121, second solenoid valve 131, horizontal level device 150 And diaphragm pump 170 is connect with PLC controller 198.

PLC controller 198 detects the liquid level in slip casting bucket 110 by the first liquid level sensor 111, and PLC controller 198 is logical The liquid level in the second liquid level sensor 191 detection mold 190 is crossed, PLC controller 198 plays on or off by the first solenoid valve 121 Inlet pipe 120 is closed, PLC controller 198 opens or closes pulp feeding pipe 130 by second solenoid valve 131.

It should be pointed out that equally having solenoid valve in horizontal level device 150, opened to control it by PLC controller 198 It closes.

It is connect preferably, Grouting Pipe 160 is oblique with a point lower side for slurry pipe 140, the angle a with horizontal plane is in 10- 15 ° of angles, bubble are not easy to enter in mold 190 from a point slurry pipe 140, avoid generating bubble on ceramic body.

Wherein, slip casting bucket 110 is transparent drum, and convenient for finding the scarce slurry of mud in time, the situation of bubble in mud is reduced not It is good to happen.

But those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this Invention, and be not used as limitation of the invention, as long as in spirit of the invention, to embodiment described above Variation, modification will all fall within the scope of claims of the present invention.

Claims

1. a ceramic body grouting method, is characterized in that, comprises:

Grouting: open the grouting pipe and inject mud into the grouting bucket connected to the atmosphere. When the mud in the grouting bucket rises to the first liquid level, close the grouting pipe and start grouting;

Grouting: open the grouting pipe and inject the mud into the grouting pipe until the mud in the grouting bucket drops to the second liquid level, close the grouting pipe and return to the grouting step;

Slurry injection molding preparation:

(1) During the sizing process, when the liquid level in the horizontal liquid level device on the sizing pipe reaches the preset liquid level, close the sizing pipe, and perform step (2), the preset liquid level is related to the liquid feeding of the mold mouth flush;

(2) After the liquid level of the horizontal liquid level gauge on the sizing pipe and the multiple grouting pipes are equal, open the slurring pipe to continue slurring, and return to step (1) until the horizontal liquid level gauge and the grouting pipe When the liquid level of the pipe is equal to the preset liquid level, slurry injection molding is performed;

Slurry injection molding: close the horizontal liquid level device, open the slurry pipe, and inject the mud in the grouting bucket into multiple molds until the liquid level in the mold reaches the injection molding liquid level, and the ceramic body is processed. During molding, the injection molding liquid level is located above the outside of the mold and is lower than the second liquid level.

2 . The method for grouting a ceramic body according to claim 1 , further comprising: after the ceramic body is formed, pumping the mud back into the raw material mud tank through a closed recovery pipeline by a diaphragm pump. 3 . .

3 . The method for grouting a ceramic body according to claim 2 , wherein the grouting barrel is connected to the rear end of the grouting pipe through a grouting pipe, and the grouting pipe is in sequence from back to front. 4 . Connect the horizontal liquid level device and a plurality of grouting pipes, the front end of the grouting pipe is connected to a closed recovery pipe through a diaphragm pump, the plurality of grouting pipes are respectively connected to a mold, and the top of the mold has a pipe body inserted into the mold .

4 . The method for grouting a ceramic body according to claim 3 , wherein the grouting bucket and the mold are respectively provided with a first liquid level sensor and a second liquid level sensor for detecting the liquid level. 5 . , a first solenoid valve and a second solenoid valve are respectively provided on the slurry feeding pipe and the slurry discharging pipe, the first liquid level sensor, the second liquid level sensor, the first solenoid valve, the second solenoid valve, the level liquid Both the leveler and the diaphragm pump are connected to a PLC controller, the PLC controller detects the liquid level in the grouting barrel through the first liquid level sensor, and the PLC controller detects the mold through the second liquid level sensor The PLC controller opens or closes the slurry feeding pipe through the first solenoid valve, and the PLC controller opens or closes the slurry feeding pipe through the second solenoid valve.

5 . The method for grouting a ceramic body according to claim 4 , wherein the grouting pipe is connected obliquely with the lower side surface of the grouting pipe, and is at an angle of 10-15° to the horizontal plane. 6 . .

6 . The method for grouting a ceramic body according to claim 5 , wherein the grouting barrel is a transparent barrel. 7 .