CN110962216A - Green brick pushing method of ceramic brick press and ceramic brick press - Google Patents
Green brick pushing method of ceramic brick press and ceramic brick press Download PDFInfo
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- CN110962216A CN110962216A CN201911284719.1A CN201911284719A CN110962216A CN 110962216 A CN110962216 A CN 110962216A CN 201911284719 A CN201911284719 A CN 201911284719A CN 110962216 A CN110962216 A CN 110962216A
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- mold core
- lower mold
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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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
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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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
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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
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a green brick pushing method of a ceramic brick press, which comprises the following steps: after the green brick is pressed, high-pressure air is introduced into the lower mold core, so that the high-pressure air is exhausted from the air holes in the surface of the lower mold core, and the green brick is pushed by the high-pressure air to be separated from the surface of the lower mold core. Correspondingly, the invention also discloses a ceramic brick press. By adopting the invention, air is blown to the green brick through the ventilation channel and the air holes, so that an air cushion layer is generated between the green brick and the lower die core and the die frame, the friction force of the green brick is reduced under the action of air buoyancy, the green brick is prevented from being damaged or bulged, and the forming quality of the green brick is ensured.
Description
Technical Field
The invention relates to the technical field of ceramic processing equipment, in particular to a green brick pushing method of a ceramic brick press and the ceramic brick press.
Background
After the existing ceramic green bricks are pressed and molded, the lower mold core is pushed through the ejection device, the green bricks are positioned on the lower mold core and rise to the surface of the green bricks along with the lower mold core, and then the green bricks are pushed to a transmission line through the material distribution trolley. In the pushing process, friction force can be generated between the bottom of the green brick and the lower die core and the transmission line, and when the green brick is large in size or thin in thickness, the green brick can be raised or damaged by the friction force, so that the product quality of the ceramic brick is influenced. There is a need for a new ceramic brick press that solves the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a green brick pushing method of a ceramic brick press and the ceramic brick press, which can prevent green bricks from being damaged or bulged in the green brick demoulding and transferring process and ensure the forming quality of the green bricks.
In order to solve the technical problem, the invention provides a green brick pushing method of a ceramic brick press, which comprises the following steps: after the green brick is pressed, high-pressure air is introduced into the lower mold core, so that the high-pressure air is exhausted from the air holes in the surface of the lower mold core, and the green brick is pushed by the high-pressure air to be separated from the surface of the lower mold core.
As an improvement of the scheme, the method also comprises the step that after the green bricks are pushed by high-pressure air to be separated from the surface of the lower mold core, the green bricks are separated from the mold cavity by descending the mold frame or ascending the lower mold core.
As an improvement of the scheme, the method further comprises the steps that air holes are uniformly distributed on the surface of the lower mold core and are connected with air passages, high-pressure air is introduced into the air passages, and the green bricks are separated from the surface of the lower mold core through the high-pressure air.
As an improvement of the scheme, after the green bricks are pressed, in the process that the distributing trolley pushes the green bricks to move towards the transmission line, the lower mold core continuously sprays air outwards through the air holes of the lower mold core, and an air cushion layer is formed between the green bricks and the upper mold core.
Correspondingly, the invention also provides a ceramic brick press which comprises a material distribution mechanism, a brick pressing mechanism, a supporting and floating mechanism positioned in the brick pressing mechanism and a transmission line positioned on one side of the brick pressing mechanism;
the material distribution mechanism comprises a material distribution support and a material distribution trolley positioned on the material distribution support;
the brick pressing mechanism comprises a press, an upper mold core arranged on the press, a lower mold core positioned below the upper mold core, a mold frame positioned around the lower mold core and a demolding device for demolding, and a brick blank is positioned between the upper mold core and the lower mold core;
the supporting and floating mechanism comprises a ventilation channel positioned in the lower mold core and an air hole communicated with the ventilation channel, and the air hole is positioned on the upper surface of the lower mold core.
As an improvement of the scheme, the material distributing trolley moves in a direction close to or far away from the transmission line to distribute the raw materials into the die frame or push the pressed green bricks out of the transmission line.
As an improvement of the scheme, the shape and the size of the upper mold core are matched with those of the lower mold core.
As an improvement of the scheme, the demolding device is an ejection device arranged at the bottom of the lower mold core, and the ejection device can drive the lower mold core to move up and down;
and during demoulding, the lower die core moves upwards under the action of the ejection device to eject the green bricks on the lower die core out of the die frame.
As an improvement of the scheme, the demolding device is a mold frame lifting device connected with the mold frame, and during demolding, the mold frame lifting device drives the mold frame to move downwards to enable the green bricks to leave the cavity.
As an improvement of the scheme, the height of the lower edge of the material distribution trolley is larger than or equal to that of the upper edge of the die frame.
The implementation of the invention has the following beneficial effects:
1. according to the ceramic brick press, air is blown to the green bricks through the ventilation channels and the air holes, so that an air cushion layer is generated between the green bricks and the lower die core and the die frame, the friction force of the green bricks is reduced under the action of air buoyancy, the green bricks are prevented from being damaged or bulged, and the forming quality of the green bricks is ensured.
2. According to the ceramic brick press, the height of the lower edge of the material distribution trolley is larger than or equal to the height of the upper edge of the die frame, so that the material distribution mechanism can push green bricks or materials conveniently, and the die frame is prevented from influencing the movement of the material distribution trolley.
Drawings
FIG. 1 is a schematic structural view of a ceramic brick press according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a lower mold core and a supporting and floating mechanism of the ceramic brick molding press of the present invention;
fig. 3 is a schematic structural diagram of a ceramic brick press according to a second embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
As shown in fig. 1-2, a first embodiment of the present invention provides a ceramic brick press, which includes a material distribution mechanism 1, a brick pressing mechanism 2, a supporting and floating mechanism 3 located inside the brick pressing mechanism 2, and a transmission line 4 located at one side of the brick pressing mechanism 2;
the material distribution mechanism 1 comprises a material distribution bracket 11 and a material distribution trolley 12 positioned on the material distribution bracket 11;
the brick pressing mechanism 2 comprises a press 21, an upper mold core 22 arranged on the press 21, a lower mold core 23 positioned below the upper mold core 22, a mold frame 24 positioned around the lower mold core 23, and an ejection device 25 for lifting the lower mold core, wherein a brick blank 10 is positioned between the upper mold core 22 and the lower mold core 23; the lower mold core 23 and the mold frame 24 jointly enclose a cavity;
the supporting and floating mechanism 3 comprises a ventilation channel 31 positioned inside the lower mold core 23 and the mold frame 24 and air holes 32 communicated with the ventilation channel 31, wherein the air holes 32 are positioned on the upper surfaces of the lower mold core 23 and the mold frame 24 and are uniformly distributed on the surface of the lower mold core 23.
The material distribution mechanism 1 is used for providing raw materials for the brick pressing mechanism 2, and comprises a material distribution support 11 and a material distribution trolley 12 positioned on the material distribution support 11, wherein the material distribution support 11 is used for supporting the material distribution trolley 12, so that the height of the lower surface of the material distribution trolley 12 is larger than or equal to the height of the upper surface of the mold frame 14, and the material distribution is facilitated. When the distributing trolley 11 moves, the distributing trolley moves towards the direction close to or away from the transmission line 4, so that raw materials are distributed into the die frame 24 or the pressed green bricks 10 are pushed out to the transmission line 4.
The brick pressing mechanism 2 is used for extruding a brick blank 10 and comprises a press 21, an upper mold core 22 arranged on the press 21, a lower mold core 23 positioned below the upper mold core 22, a mold frame 24 positioned around the lower mold core 23, and an ejection device 25 for lifting the lower mold core 23, wherein the brick blank is positioned between the upper mold core 22 and the lower mold core 23.
The press 21 acts on a power mechanism for pressing the green bricks 10, the power mechanism drives the upper mold core 22 to move up and down to press the green bricks 10, the upper mold core 22 is arranged on the press 21, and the shape and the size of the upper mold core are matched with those of the lower mold core 23, so that the pressure on two sides of the green bricks 10 is balanced, and the green bricks meeting the requirements are pressed.
The lower mold core 23 is located on the ejector 25, and moves in a direction away from or close to the upper mold core 22 under the action of the ejector 25, and when the lower mold core 23 moves in a direction close to the upper mold core 22 under the action of the ejector 25, the green bricks 10 on the lower mold core 23 are ejected out of the mold frame 25, so that the green bricks 10 on the lower mold core 23 are conveniently ejected out to the transmission line 4 by the distributing trolley 22. When the lower mold core 23 moves away from the upper mold core 22 under the action of the ejection device 25, the height of the lower mold core 23 is smaller than the height of the upper edge of the mold frame 24, so that the material distribution mechanism 1 can conveniently distribute the raw materials into the mold frame 24, and the action of pressing the green bricks 10 is realized.
The mold frame 24 is located around the lower mold core 23, so that raw materials are limited in the mold frame, green bricks 10 are pressed, in order to prevent the mold frame 24 from influencing the movement of the material distribution trolley 12, the height of the lower surface of the material distribution trolley 12 is greater than or equal to that of the upper surface of the mold frame 24, and the green bricks or the materials are conveniently pushed by the material distribution mechanism 1.
The ejector 25 lifts the lower mold core 23, which can make telescopic movement, thereby realizing the movement of the lower mold core 23 to approach or depart from the upper mold core 22.
The supporting and floating mechanism 3 comprises a ventilation channel 31 positioned in the lower mold core 23 and the mold frame 24 and an air hole 32 communicated with the ventilation channel 31, wherein the air hole 32 is positioned on the upper surfaces of the lower mold core 23 and the mold frame 24, so that air is blown to the green brick 10 through the ventilation channel 31 and the air hole 32, an air cushion layer is generated between the green brick 10 and the lower mold core 23 and the mold frame 24, the friction force of the green brick 10 is reduced under the action of air buoyancy, the green brick 10 is prevented from being damaged or bulged, and the forming quality of the green brick 10 is ensured.
The transmission line 4 is located on one side of the brick pressing mechanism 2, namely the material distribution mechanism 1 and the transmission line 4 are respectively located on two sides of the brick pressing mechanism 2. The conveying line 4 is a conveying belt and is used for conveying the pressed and formed green bricks to the inside of the kiln for sintering.
The invention also provides a brick blank pushing method matched with the ceramic brick press, when the brick press works, the lower mold core 23 descends under the action of the ejection device 25, the height of the upper surface of the lower mold core is smaller than that of the upper surface of the mold frame 24, the material distribution mechanism 1 is withdrawn after distributing materials to the interior of the mold frame 24, the press 21 drives the upper mold core 22 to descend to press raw materials, the upper mold core 22 ascends after pressing for a preset time, the ejection device 25 pushes the lower mold core 23 to ascend, so that the height of the upper surface of the lower mold core 23 is larger than or equal to that of the upper surface of the mold frame 24, gas is introduced into the ventilation channel 31 in the supporting and floating mechanism 3, the gas flows out from the ventilation channel 31 and the air holes 32 to form an air cushion layer between the brick blank 10 and the lower mold core 23 as well as between the mold frame 24, and the material distribution trolley 12 pushes the brick blanks 10 to the transmission line 4, at this time, since the air cushion layer is formed between the green brick 10 and the lower mold core 23 and the mold frame 24, the friction force of the green brick is reduced, the green brick is prevented from being damaged or bulging, and the green brick quality is ensured.
As shown in fig. 3, the second embodiment of the present invention further provides a ceramic brick press, which is different from the first embodiment in that the lower mold core 23 can not be lifted any more, but is fixed on the base; in contrast, the mold frame 24 is provided with a mold frame lifting device 26, and the mold frame lifting device 26 may be a vertically arranged hydraulic cylinder or an air cylinder, and is capable of driving the mold frame 24 to vertically lift, so as to complete the demolding action. This embodiment can be realized by the floating mechanism 3. The traditional brick press does not have the supporting and floating mechanism 3, the green brick 10 and the lower mold core 23 have certain adhesive force after brick pressing, if a demolding method that the lower mold core 23 is lifted is adopted, the vibration generated in the lifting process and stopping moment of the lower mold core 23 is beneficial to the separation of the green brick 10 and the lower mold core 23, and therefore after the green brick 10 is ejected out of the mold frame 24 by the lower mold core 23, the green brick 10 is easier to be horizontally pushed into the transmission line 4 by the material distribution trolley 12. However, if the method of lifting the mold frame 24 is adopted, the green brick 10 and the lower mold core 23 are both in a static state during the demolding process, the green brick 10 is attached to the lower mold core 23, and after the mold frame 24 is lowered and separated, if a transverse thrust force is simply applied, the green brick 10 is easily damaged. By adopting the structure provided by the application, the green brick 10 can be actively separated from the lower mold core 23 through high-pressure air, so that the lifting and demolding method of the mold frame 24 can be better realized. In addition, compared with the lower mold core 23, the mold frame 24 has lighter weight and more flexible movement, and has more obvious pressing advantages on the large-area green bricks 10; the lower mold core 23 is directly fixed on the base, so that the structure of the lower mold can be simplified, and the maintenance is convenient.
By adopting the structure of the embodiment, the demolding manner is different from that of the first embodiment, and the main difference is that: during distributing and demolding, the lower mold core 23 is fixed, the mold frame 24 descends during demolding to expose the brick blank 10, the brick blank 10 is separated from the lower mold core 23 through air holes of the lower mold core 23, the air holes 32 continuously blow air, an air cushion layer is formed between the brick blank 10 and the lower mold core 23, and the brick blank 10 is pushed into the transmission line 44 by the distributing trolley 12.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A method for pushing adobe of ceramic brick press is characterized in that after adobe is pressed, high pressure air is introduced into a lower mold core to be exhausted from air holes on the surface of the lower mold core, and the adobe is pushed by the high pressure air to be separated from the surface of the lower mold core.
2. A method of pushing green bricks for a ceramic brick machine as claimed in claim 1, wherein the green bricks are separated from the surface of the lower core by the high pressure air pushing, and then the green bricks are moved away from the cavity by lowering the mold frame or raising the lower core.
3. The method for pushing adobe of ceramic brick machine as claimed in claim 1, characterized in that the air holes are evenly arranged on the surface of the lower mold core, the air holes are connected with air passages, the air passages are connected with high pressure air, and the adobe is separated from the surface of the lower mold core by the high pressure air.
4. The method for pushing green bricks of a ceramic brick machine as claimed in claim 1, wherein after green bricks are pressed, the lower mold core continuously blows air through its air holes to the outside while the distributing carriage pushes the green bricks to move toward the transfer line, and an air cushion layer is formed between the green bricks and the upper mold core.
5. A ceramic brick press is characterized by comprising a material distribution mechanism, a brick pressing mechanism, a supporting and floating mechanism positioned in the brick pressing mechanism and a transmission line positioned on one side of the brick pressing mechanism;
the material distribution mechanism comprises a material distribution support and a material distribution trolley positioned on the material distribution support;
the brick pressing mechanism comprises a press, an upper mold core arranged on the press, a lower mold core positioned below the upper mold core, a mold frame positioned around the lower mold core and a demolding device for demolding, and a brick blank is positioned between the upper mold core and the lower mold core;
the supporting and floating mechanism comprises a ventilation channel positioned in the lower mold core and an air hole communicated with the ventilation channel, and the air hole is positioned on the upper surface of the lower mold core.
6. A ceramic brick machine as claimed in claim 5, wherein the feed carriage moves towards or away from said transfer line to feed stock into said mold frame or to push out pressed green bricks onto said transfer line.
7. A ceramic brick press as claimed in claim 5, wherein the shape and size of said upper core is matched to the shape and size of said lower core.
8. The ceramic brick molding press of claim 5, wherein the demolding device is an ejector device arranged at the bottom of the lower mold core, and the ejector device can drive the lower mold core to move up and down;
and during demoulding, the lower die core moves upwards under the action of the ejection device to eject the green bricks on the lower die core out of the die frame.
9. A ceramic brick machine as claimed in claim 5, wherein said stripping means is a frame lifting means connected to the frame, said frame lifting means driving the frame to move downwardly during stripping to move the green brick out of the cavity.
10. A ceramic brick press as claimed in claim 5 wherein the height of the lower edge of the distribution trolley is greater than or equal to the height of the upper edge of the mould frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911284719.1A CN110962216A (en) | 2019-12-13 | 2019-12-13 | Green brick pushing method of ceramic brick press and ceramic brick press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911284719.1A CN110962216A (en) | 2019-12-13 | 2019-12-13 | Green brick pushing method of ceramic brick press and ceramic brick press |
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| Publication Number | Publication Date |
|---|---|
| CN110962216A true CN110962216A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911284719.1A Pending CN110962216A (en) | 2019-12-13 | 2019-12-13 | Green brick pushing method of ceramic brick press and ceramic brick press |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953108A (en) * | 2022-06-16 | 2022-08-30 | 合肥陶陶新材料科技有限公司 | Ceramic powder dry pressing forming equipment |
| CN115366244A (en) * | 2022-07-26 | 2022-11-22 | 北新集团建材股份有限公司 | Pneumatic drag reduction forming table |
-
2019
- 2019-12-13 CN CN201911284719.1A patent/CN110962216A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953108A (en) * | 2022-06-16 | 2022-08-30 | 合肥陶陶新材料科技有限公司 | Ceramic powder dry pressing forming equipment |
| CN114953108B (en) * | 2022-06-16 | 2023-07-04 | 合肥陶陶新材料科技有限公司 | Ceramic powder dry pressing forming equipment |
| CN115366244A (en) * | 2022-07-26 | 2022-11-22 | 北新集团建材股份有限公司 | Pneumatic drag reduction forming table |
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