CN104760121A - Control method and system for variable-speed powder pressing of ceramic brick press - Google Patents
Control method and system for variable-speed powder pressing of ceramic brick press Download PDFInfo
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- CN104760121A CN104760121A CN201410008917.6A CN201410008917A CN104760121A CN 104760121 A CN104760121 A CN 104760121A CN 201410008917 A CN201410008917 A CN 201410008917A CN 104760121 A CN104760121 A CN 104760121A
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- period
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- powder
- pressure value
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a control method and a system for variable-speed powder pressing of a ceramic brick press. The method presses powder placed on a powder mold having an exhaust hole according to the following steps: a whole pressing phase is divided into more than two continuous pressing phases; the pressing speed and the target pressure value of each pressing phase are set; the pressing process is performed by the pressing speed corresponding to each pressing phase in sequence, and when the present main oil cylinder pressure value reaches the target pressure value of the present pressing phase, the next pressing phase is switched to; and the pressing is repeatedly performed, and when the present main oil cylinder pressure value reaches the target pressure value of the last pressing phase, the pressing is finished. The method realizes once adobe pressing of the ceramic brick press, saves the middle pressure relief and most exhaust time, and can largely improve the production efficiency when guaranteeing the adobe forming quality.
Description
Technical field
The present invention relates to the manufacturing equipment field that industrial hydraulic system is integrated, particularly a kind of Programmable Logic Controller, industrial control computer of adopting is to the control method of ceramic brick press speed change compacting powder and system.
Background technology
Before ceramic powder is pressed into adobe, be all be in very loose state, the gap between powder particles fills a large amount of gas.Therefore, ceramic brick press, in the process of pressing unfired brick, needs dynamic beam to lift for several times, so that discharged by these gases.In the industry the process that dynamic beam lifts gas is discharged is referred to as " exhaust ".The number of times of exhaust and quality can affect the Forming Quality of adobe, even there will be the defects such as layering.And before exhaust, need the pressure of master cylinder to lay down, otherwise dynamic beam can not lifted under the effect of master cylinder pressure.In the industry the process that the pressure of master cylinder is laid down is referred to as " release ".
Current ceramic brick press completes the compacting powder action schematic diagram of a green brick forming as shown in Figure 1.Current ceramic brick press completes the shaping process need of pressing unfired brick through n pressurization and release and be vented for n-1 time, and wherein n is the option on ceramic brick press human-computer interaction interface, its value be greater than 0 positive integer.In fact, this green brick forming process be divide into the repeatedly pressurization that goal pressure progressively increases, and adding release and exhaust process between each pressurization, realizes the gas in powder to discharge in this approach, ensure the Forming Quality of adobe.But the method has a very large shortcoming, that is exactly in the process of whole pressing unfired brick, not only release and exhaust account for most of the time, and must build-up pressure in master cylinder again during upper once pressurization after being vented, also need to expend time in and energy, this has very large impact to the production efficiency of ceramic brick press.
Current ceramic brick press compacting powder action control flow process as shown in Figure 2.Finally goal pressure is reached by the pressurization that constantly repeats and release stage.A large amount of energy is consumed in whole process, and not environmentally.
Summary of the invention
Object of the present invention, overcome the deficiencies in the prior art exactly, the control method providing a kind of ceramic brick press speed change to suppress powder and system, use the ceramic tile mold with steam vent, pressurization can be allowed simultaneously to carry out with exhaust, realize making the disposable pressing unfired brick of ceramic brick press shaping.
In order to achieve the above object, following technical scheme is adopted:
A control method for ceramic brick press speed change compacting powder, is placed on according to following step compacting the powder had on the powder mould of steam vent: step one: is divided into more than the two periods pressure periods linked up the whole pressure period; Step 2: the pressing speed and the target pressure value that set every period of pressure period, wherein, the pressing speed of pressure period the last period is less than the pressing speed of rear one period of pressure period, and the target pressure value of pressure period the last period is less than the target pressure value of rear one period of pressure period; Step 3: the pressure process performing this section successively with the pressing speed that every period of pressure period is corresponding, until current master cylinder force value reaches the target pressure value of current pressure period, jumps to next period of pressure period; Step 4: repeated execution of steps three, until current master cylinder force value reaches the target pressure value of final stage pressure period, terminates pressurization.
A control system for ceramic brick press speed change compacting powder, is characterized in that, for suppressing the powder being placed on and having on the powder mould of steam vent, comprising segmentation module, and it is for being divided into more than the two periods pressure periods linked up by the whole pressure period; Setting module, it is for setting pressing speed and the target pressure value of every period of pressure period, wherein, the pressing speed of pressure period the last period is less than the pressing speed of rear one period of pressure period, and the target pressure value of pressure period the last period is less than the target pressure value of rear one period of pressure period; Executive Module, it, for performing the pressure process of this section successively with the pressing speed that every period of pressure period is corresponding, until current master cylinder force value reaches the target pressure value of current pressure period, jumps to next period of pressure period; Determination module, it is for detecting Executive Module, until current master cylinder force value reaches the target pressure value of final stage pressure period, terminates pressurization.
Compared with prior art, beneficial effect of the present invention is:
Ceramic brick press use speed change degree of the present invention suppress the control method of powder, and coordinate the ceramic tile mold with steam vent, pressurization can be allowed to carry out with exhaust simultaneously, realization makes the disposable pressing unfired brick of ceramic brick press shaping, save middle release and the plenty of time shared by exhaust, while ensure that green brick forming quality, can greatly enhance productivity.
Accompanying drawing explanation
Fig. 1 is the compacting powder action schematic diagram that existing ceramic brick press completes a green brick forming;
Fig. 2 is current ceramic brick press compacting powder action control flow process;
Fig. 3 is the structural representation of ceramic tile mold;
Fig. 4 is the compacting powder action schematic diagram that powder brick machine of the present invention completes a green brick forming;
Fig. 5 is the flow chart of steps of the speed change drawing method of powder brick machine of the present invention.
Diagram: 1-ceramic tile mold; 2-elasticity glue-line; 3-exhaust seam or steam vent; 4-exhaust passage.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing and specific implementation method, be used for explaining the present invention in exemplary embodiment and description of the present invention, but not as a limitation of the invention.
As shown in Figure 3, it is the ceramic tile mold 1 of ceramic powder brick machine, its working face is provided with trickle exhaust seam or steam vent 3, exhaust seam or steam vent 3 are connected to exhaust passage 4 below, in the pressing process of Ceramic Tiles, gas enters into exhaust passage 4 by exhaust seam or steam vent 3, discharges from exhaust passage 4.In order to cushion, be provided with at working face the breakage that elasticity glue-line 2 can reduce Ceramic Tiles.
Fig. 4 is the compacting powder action schematic diagram that powder brick machine of the present invention completes a green brick forming.P in figure
1, P
2..., P
n(P
nbe final goal force value) judge the master cylinder force value that each pressure period terminates for controller.In namely each pressure period, master cylinder needs the target pressure value reached.V
1, v
2..., v
nthen for each pressure period pressing speed (n be greater than 0 positive integer).After ceramic brick press enters pressing stage, with pressing speed v
1complete the goal pressure P of pressure period one
1compacting; Change when controller detects that master cylinder force value arrives target pressure value P1, with pressing speed v
2complete the target pressure value P of pressure period two
2compacting So analogize, until ceramic brick press is with pressing speed v
ncomplete the target pressure value P of last pressure period
ncompacting.
In whole pressing process, powder is pressed to form dense state gradually by rarefaction, that is the space between powder particles reduces gradually, and wherein filled gas is also just fewer and feweri.The powder of control method effect of the present invention's exploitation is placed on to be had on the vented mould of steam vent, can realize while utilizing master cylinder pressure to carry out pressurizeing, and allows the gas in powder be discharged by the exhaust seam of vented mould or steam vent.Therefore, when just starting to suppress, must suppress with pressing speed slowly, being so just convenient to a large amount of gas and successfully discharging; And after most gas is all discharged, the compacting middle and later periods then can increase pressing speed gradually.In general P is had
1<P
2< ... <P
n, v
1<v
2< ... <v
n, between each parameter, there is no specific rule.As shown in Figure 5, operating personnel according to the technique needs of the different qualities of powder under different formulations and institute's pressing unfired brick, first must arrange suitable pressurization frequency n in man-machine interface.Is divided into n the pressure period linked up the whole pressure period.Set target pressure value P corresponding to each pressure period and pressing speed v simultaneously, complete whole adobe with this compressing.Such as: have a kind of Ceramic Tiles, it needs the pressure of 35000kN, and is divided into 3 pressurizations and just can be shaped to the adobe reaching quality requirement, then it can be set to F
1=2500kN, v
1=15%, F
2=6000kN, v
1=25%, F
3=35000kN, v
3=50% to carry out pressing unfired brick shaping.
Due to current custom pressure F(unit: kN in the industry) carry out the briquetting pressure of stoichiometric ceramics brick, so the parameter man-machine interface of ceramic brick press being supplied to operating personnel's setting is pressure F, pressure F can be converted to corresponding pressure P(unit according to the master cylinder area A of ceramic brick press by control program automatically: MPa) as controling parameters.
The steps flow chart of the speed change drawing method of powder brick machine is as shown in Figure 5:
First, is divided into more than the two periods pressure periods linked up the whole pressure period.
Then, pressing speed and the target pressure value of every period of pressure period is set.Wherein, P
1<P
2< ... <P
n, v
1<v
2< ... <v
n.The target pressure value of every period of pressure period is actual is pressurized to target pressure value with the pressing speed of this section exactly from the initial pressure value of this section always.From force value, whole pressure process is exactly the continually varying process of force value, and whole process is made up of multistage continuous print force value curve.Each period of pressure period includes initial pressure value and terminates force value.In fact each section pressurizes with the end force value of the section of changing exactly.
Then, the pressurization of the first pressure period is performed with the first pressing speed.Constantly master cylinder force value is detected in pressure process.The size of contrast master cylinder force value and target pressure value.If master cylinder force value is less than target pressure value, continue to keep pressurized state; If master cylinder force value is more than or equal to target pressure value, then rotated for the second pressure period.Circulation like this, until arrive the N pressure period.When the master cylinder force value of N pressure period reaches final target pressure value, now just complete the whole pressure period.Terminate pressurization, carry out the follow-up release stage.
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, detailed description of the invention and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. a control method for ceramic brick press speed change compacting powder, is characterized in that, is placed on according to following step compacting the powder had on the powder mould of steam vent:
Step one: is divided into more than the two periods pressure periods linked up the whole pressure period;
Step 2: the pressing speed and the target pressure value that set every period of pressure period, wherein, the pressing speed of pressure period the last period is less than the pressing speed of rear one period of pressure period, and the target pressure value of pressure period the last period is less than the target pressure value of rear one period of pressure period;
Step 3: the pressure process performing this section successively with the pressing speed that every period of pressure period is corresponding, until current master cylinder force value reaches the target pressure value of current pressure period, jumps to next period of pressure period;
Step 4: repeated execution of steps three, until current master cylinder force value reaches the target pressure value of final stage pressure period, terminates pressurization.
2. a control system for ceramic brick press speed change compacting powder, is characterized in that, for suppressing the powder being placed on and having on the powder mould of steam vent, comprising:
Segmentation module, it is for being divided into more than the two periods pressure periods linked up by the whole pressure period;
Setting module, it is for setting pressing speed and the target pressure value of every period of pressure period, wherein, the pressing speed of pressure period the last period is less than the pressing speed of rear one period of pressure period, and the target pressure value of pressure period the last period is less than the target pressure value of rear one period of pressure period;
Executive Module, it, for performing the pressure process of this section successively with the pressing speed that every period of pressure period is corresponding, until current master cylinder force value reaches the target pressure value of current pressure period, jumps to next period of pressure period;
Determination module, it is for detecting Executive Module, until current master cylinder force value reaches the target pressure value of final stage pressure period, terminates pressurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008917.6A CN104760121A (en) | 2014-01-08 | 2014-01-08 | Control method and system for variable-speed powder pressing of ceramic brick press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008917.6A CN104760121A (en) | 2014-01-08 | 2014-01-08 | Control method and system for variable-speed powder pressing of ceramic brick press |
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|---|---|
| CN104760121A true CN104760121A (en) | 2015-07-08 |
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ID=53642380
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|---|---|---|---|
| CN201410008917.6A Pending CN104760121A (en) | 2014-01-08 | 2014-01-08 | Control method and system for variable-speed powder pressing of ceramic brick press |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105599111A (en) * | 2016-01-05 | 2016-05-25 | 佛山市恒力泰机械有限公司 | Brick blank venting method of ceramic brick moulding machine |
| CN105619585A (en) * | 2016-01-05 | 2016-06-01 | 佛山市恒力泰机械有限公司 | Adobe demolding method for ceramic brick press |
| CN112519302A (en) * | 2021-01-15 | 2021-03-19 | 三通生物工程（潍坊）有限公司 | Mold for preparing mold pressing water-soluble compound fertilizer |
| CN114735966A (en) * | 2022-03-30 | 2022-07-12 | 广东工业大学 | High-thermal-conductivity ceramic-polymer composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455097A (en) * | 1990-06-26 | 1992-02-21 | Matsushita Electric Works Ltd | Method for controlling pressing pressure of tile pressing device |
-
2014
- 2014-01-08 CN CN201410008917.6A patent/CN104760121A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455097A (en) * | 1990-06-26 | 1992-02-21 | Matsushita Electric Works Ltd | Method for controlling pressing pressure of tile pressing device |
Non-Patent Citations (1)
| Title |
|---|
| 韦峰山等: "YP10000型自动压砖机的结构创新及优化特点", 《佛山陶瓷》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105599111A (en) * | 2016-01-05 | 2016-05-25 | 佛山市恒力泰机械有限公司 | Brick blank venting method of ceramic brick moulding machine |
| CN105619585A (en) * | 2016-01-05 | 2016-06-01 | 佛山市恒力泰机械有限公司 | Adobe demolding method for ceramic brick press |
| CN105619585B (en) * | 2016-01-05 | 2018-05-04 | 佛山市恒力泰机械有限公司 | A kind of adobe release method of ceramic brick press |
| CN105599111B (en) * | 2016-01-05 | 2018-05-25 | 佛山市恒力泰机械有限公司 | A kind of adobe method for exhausting of ceramic brick press |
| CN112519302A (en) * | 2021-01-15 | 2021-03-19 | 三通生物工程（潍坊）有限公司 | Mold for preparing mold pressing water-soluble compound fertilizer |
| CN112519302B (en) * | 2021-01-15 | 2022-08-02 | 三通生物工程（潍坊）有限公司 | Mold for preparing mold pressing water-soluble compound fertilizer |
| CN114735966A (en) * | 2022-03-30 | 2022-07-12 | 广东工业大学 | High-thermal-conductivity ceramic-polymer composite material and preparation method thereof |
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Application publication date: 20150708 |