CN202878445U - Slip casting mold capable of preventing product neck portion from fracturing - Google Patents
Slip casting mold capable of preventing product neck portion from fracturing Download PDFInfo
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- CN202878445U CN202878445U CN 201220498157 CN201220498157U CN202878445U CN 202878445 U CN202878445 U CN 202878445U CN 201220498157 CN201220498157 CN 201220498157 CN 201220498157 U CN201220498157 U CN 201220498157U CN 202878445 U CN202878445 U CN 202878445U
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Abstract
The utility model relates to a slip casting mold capable of preventing product neck portion from fracturing, and provides the slip casting mold capable of preventing the product neck portion from fracturing. The slip casting mold capable of preventing the product neck portion from fracturing comprises a cover mold, a body mold, a molding bottom mold and a support bottom mold, wherein the cover mold is used on the opening portion of a slip casting product, the body mold is used on the neck portion and the belly portion of the slip casting product, the molding bottom mold is used on the bottom portion of the slip casting product, the support bottom mold is used for supporting the bottom portion of the slip casting product, one end of the body mold is connected with the cover mold, and the other end of the body mold is connected with the molding bottom mold or the support bottom mold, wherein the molding bottom mold and the support bottom mold can be mutually changed. The slip casting mold capable of preventing the product neck portion from fracturing has the advantages that the shrunk deformation of the neck portion of the slip casting product is transferred to the shrunk deformation of the bottom portion of the slip casting product under the gravity effect, and therefore the neck portion fracture defect of the slip casting product is avoided.
Description
Technical field
The utility model relates to injection forming, relates in particular to a kind of injection forming mould that prevents the fracture of product neck in the injection forming.
Background technology
Injection forming also claims moulding by casting (Slip Casting), be based on the physical characteristic that the graphite mould can absorb moisture, ceramic powder is made into the mud with flowability, then inject in the porous mold (being mainly plaster mold), moisture has just formed after being sucked by mould (plaster mold) has certain thickness even mud layer, dehydrate and form simultaneously the base substrate with some strength in the process, this kind mode is called as injection forming.Its complete process can be divided into three phases: 1. after mud injected mould, the water under the effect of plaster mold capillary force in the absorbent slurry at first was absorbed near the moisture in the mud of die wall, and the particle in the mud begins close, forms initial thin mud layer.2. moisture further is absorbed, and its diffusion power is pressure differential and the concentration difference of moisture, and thin mud layer is thickening gradually, and the mud layer internal moisture spreads to the outside, when mud layer thickness reaches notes part thickness, just forms young base.3. the plaster mold continuation absorbs moisture, and young base begins to shrink, the moisture start vaporizer on surface, and after the dry formation of young base had the green compact of some strength, injection forming was namely finished in the demoulding.
Injection forming is a kind of technique commonly used in the Production of Ceramics, and the slip casting mould then is the necessary part of injection forming.In injection forming, young base can produce contraction to a certain degree in forming the process of green compact, and the slip casting product especially mouthful larger, that neck is thin, abdomen is thick causes the neck fracture of slip casting product easily.
As shown in Figure 1, be the green compact 300 of injection forming, these green compact 300 comprise oral area 301, neck 302, belly 303 and bottom 304, and the features of shape of these green compact 300 is that oral area 301 is large, neck 302 is thin and belly 303 is thick, its appearance profile is roughly calabash shaped, and the height of these green compact 300 is H1.
As shown in Figure 2, injection forming mould for injection forming, this injection forming mould comprises cover mold 1, body mould 2 and bed die 3, wherein, cover mold 1 is used for the oral area of moulding slip casting product, body mould 2 is used for neck and the belly of moulding slip casting product, and bed die 3 is used for the bottom of moulding slip casting product, and the die cavity of this injection forming mould is roughly calabash shaped.
As shown in Figure 3, under room temperature environment, ceramic powder is made in the die cavity with mobile mud 100 these injection forming moulds of injection, is in the milk.
As shown in Figure 4, under room temperature environment, this injection forming mould carries out midge, forms young base 200 behind overfall (namely mud 100 being taken out), and this young bird base 200 comprises oral area 201, neck 202, belly 203 and bottom 204, and the height of this young bird base 200 is H2.
As shown in Figure 5, under room temperature environment, this injection forming mould continuation absorbs moisture, and young base 200 begins to shrink, the moisture start vaporizer on surface, and after young base 200 dry formation had the green compact 300 of some strength, traditional injection forming was namely finished in the demoulding.
As shown in Figure 6, because the impact of gravity and contraction, the height H 1 of green compact 300 is less than the height H 2 of young base 200, that is to say, form in the process of green compact 300 at young base 200, the neck 202 of young base 200 is subjected to the impact of gravity and contraction, can down shrink, it is the neck 202 that the neck 302 of green compact 300 will be lower than young base 200, because the neck 202 of young base 200 down shrinks, to form with the body mould 2 of injection forming mould and interfere, finally cause neck 302 fractures of green compact 300, the final neck breaking part 3021 that forms as shown in Figure 6.
For the problems referred to above, traditional way is after the fracture of the neck of slip casting product, carries out bondingly again, but this slip casting product forms cracking and bonding vestige, the quality of impact pottery easily in follow-up sintering procedure.
The utility model content
In order to solve the problems of the prior art, the utility model provides a kind of injection forming mould that prevents the fracture of product neck.
The utility model provides a kind of injection forming mould that prevents the fracture of product neck; comprise cover mold for moulding slip casting product oral area, be used for moulding slip casting product neck and belly the body mould, be used for the forming bottom die of moulding slip casting product bottom and be used for supporting the support bed die of slip casting product bottom; one end of described body mould and described cover mold; the other end of described body mould is connected with described forming bottom die or support bed die; wherein; described forming bottom die, to support bed die interchangeable; be that described forming bottom die, support bed die are interchange structure, have interconversion relation.
As further improvement of the utility model, described forming bottom die is provided with the moulding boss for moulding slip casting product bottom, described support bed die is provided with for the support rim that supports slip casting product bottom, and the height of described support rim is greater than the height of described moulding boss.
As further improvement of the utility model, described support rim comprises the first support rim that supports slip casting product base flange and the second support rim that supports slip casting product bottom groove, and described the second support rim is arranged on described the first support rim.
As further improvement of the utility model, be provided with stage portion between described the second support rim and described the first support rim.
As further improvement of the utility model, described the first support rim is the frustum of a cone, and described the second support rim is the frustum of a cone.
As further improvement of the utility model, described cover mold is provided with the cover mold die cavity for moulding slip casting product oral area, and described cover mold die cavity is circular cone shape.
As further improvement of the utility model, described body mould is provided with body mould die cavity, described body mould die cavity comprises for the neck die cavity of moulding slip casting product neck and is used for the belly die cavity of moulding slip casting product belly, and described belly die cavity is arc-shaped recess, and described neck die cavity is arc convex.
As further improvement of the utility model, described belly die cavity is opposite with the arcuate directions of described neck die cavity.
The beneficial effects of the utility model are: pass through such scheme, be beneficial to the forming bottom die with interconversion relation and support bed die, the injection forming mould is stood upside down up and down, through forming young base behind grouting, midge, the overfall, form in the contraction process of green compact at young base, utilize the impact of gravity, it is the contraction distortion of slip casting product bottom that the contraction distortion of slip casting product neck is shifted, thereby has avoided the defective of slip casting product neck fracture.
Description of drawings
Fig. 1 is the structural representation of the injection forming product that mouth is large, neck is thin, abdomen is thick;
Fig. 2 is the structural representation of traditional injection forming mould;
Fig. 3 is the schematic diagram that adopts traditional filling forming method to be in the milk;
Fig. 4 adopts traditional filling forming method to carry out the schematic diagram that midge forms young base;
Fig. 5 adopts traditional filling forming method to carry out the schematic diagram that midge forms green compact;
Fig. 6 adopts traditional filling forming method to cause the schematic diagram of slip casting product neck fracture;
Fig. 7 is a kind of decomposition texture schematic diagram that prevents the injection forming mould of product neck fracture of the utility model;
Fig. 8 is a kind of structural representation that prevents the support bed die of the injection forming mould that the product neck ruptures of the utility model;
Fig. 9 adopts a kind of injection forming mould of product neck fracture that prevents of the utility model to form the schematic diagram of green compact;
Figure 10 is the schematic diagram after a kind of injection forming mould that prevents product neck fracture of the utility model is upright up and down;
Figure 11 is the schematic diagram that adopts after a kind of injection forming mould that prevents that the product neck from rupturing of the utility model carries out the demoulding;
Figure 12 adopts a kind of structural representation that prevents the green compact of the injection forming mould institute moulding that the product neck ruptures of the utility model;
Figure 13 is a kind of structural representation that prevents the injection forming mould of product neck fracture of the utility model.
The specific embodiment
Below in conjunction with description of drawings and the specific embodiment the utility model is further specified.
Drawing reference numeral among Fig. 1 to Figure 13 is: cover mold 1; Cover mold die cavity 11; Body mould 2; Neck die cavity 21; , belly die cavity 22; Forming bottom die 3; Moulding boss 31; Support bed die 4; Support rim 41; The first support rim 411; The second support rim 412; The die cavity 5 of injection forming mould; Mud 100; Young base 200; Oral area 201; Neck 202; Belly 203; Bottom 204; Green compact 300; Oral area 301; Neck 302; Belly 303; Bottom 304; Flange 3041; Groove 3042.
Extremely shown in Figure 13 such as Fig. 7, a kind of injection forming mould that prevents the fracture of product neck, comprise the cover mold 1 for moulding slip casting product oral area, the body mould 3 that is used for moulding slip casting product neck 2 and belly, for the forming bottom die 3 of moulding slip casting product bottom with for the support bed die 4 that supports slip casting product bottom, one end of described body mould 2 and described cover mold 1, the other end of described body mould 2 is connected with described forming bottom die 3 or support bed die 4, wherein, described forming bottom die 3, it is interchangeable to support bed die 4, it is described forming bottom die 3, supporting bed die 4 is interchange structure, has interconversion relation.
Extremely shown in Figure 13 such as Fig. 7, described forming bottom die 3 is provided with the moulding boss 31 for moulding slip casting product bottom, described support bed die 4 is provided with for the support rim 41 that supports slip casting product bottom, and the height of described support rim 41 is greater than the height of described moulding boss 31.
Extremely shown in Figure 13 such as Fig. 7, described support rim 41 comprises the first support rim 411 that supports green compact 300 bottoms 304 flanges 3041 and the second support rim 412 that supports green compact 300 bottoms 304 grooves 3242, and described the second support rim 412 is arranged on described the first support rim 411.
To shown in Figure 13, be provided with stage portion between described the second support rim 412 and described the first support rim 411 such as Fig. 7, described the first support rim 411 is the frustum of a cone, and described the second support rim 412 is the frustum of a cone.
Extremely shown in Figure 13 such as Fig. 7, described cover mold 1 is provided with the cover mold die cavity 11 for moulding slip casting product oral area, described cover mold die cavity 11 is circular cone shape, described body mould 2 is provided with body mould die cavity, described body mould die cavity comprises for the neck die cavity 21 of moulding slip casting product neck and is used for the belly die cavity 22 of moulding slip casting product belly, described belly die cavity 22 is arc-shaped recess, and described neck die cavity 21 is arc convex.
To shown in Figure 13, described belly die cavity 22 is opposite with the arcuate directions of described neck die cavity 21 such as Fig. 7.
To shown in Figure 13, the utility model also provides a kind of filling forming method that prevents the fracture of product neck that adopts above-mentioned injection forming mould such as Fig. 7, and the filling forming method that namely adopts the above-mentioned injection forming mould that provides to carry out may further comprise the steps:
A, under 20～30 degrees centigrade of environment of room temperature, be in the milk to the injection forming mould;
B, under 20～30 degrees centigrade of environment of room temperature, described injection forming mould carries out midge, forming an ancient piece of jade, round, flat and with a hole in its centre thick behind overfall is 3～4.5 millimeters young base 200, described young base 200 comprises oral area 201, neck 202, belly 203 and bottom 204;
C, under 20～30 degrees centigrade of environment of room temperature, described injection forming mould is stood upside down up and down;
D, under 20～30 degrees centigrade of environment of room temperature, described injection forming mould continues midge, described young base 200 dry after-contraction form green compact 300, described green compact 300 comprise oral area 301, neck 302, belly 303 and bottom 304;
E, the forming bottom die 3 of described injection forming mould is replaced by supports bed die 4, described support bed die 4 is connected with described green compact 300;
F, described injection forming mould is upright up and down makes and supports the described green compact 300 of bed die 4 supports;
Forming the slip casting product after G, the demoulding is green compact 300.
Extremely shown in Figure 13 such as Fig. 7, described injection forming mould comprise for the cover mold 1 of moulding slip casting product oral area, be used for moulding slip casting product neck and belly body mould 2, be used for the forming bottom die 3 of moulding slip casting product bottom and be used for supporting the support bed die 4 of slip casting product bottom, in described step C, the forming bottom die 3 of described injection forming mould is positioned on the described body mould 2, described body mould 2 is positioned on the described cover mold 1, forms the injection forming mould that stands upside down up and down.
Extremely shown in Figure 13 such as Fig. 7, described step e is specially: the distance of calculating body mould 2 and green compact 300 bottoms 304 grooves 3042, support the height of the support rim 41 of punch 4 apart from relative set according to this, make the height of the support rim 41 that supports punch 4 equal the distance of body mould 2 and green compact 300 bottoms 304 grooves 3042, the forming bottom die 3 of described injection forming mould is replaced by support bed die 4, described support bed die 4 is positioned on the described body mould 2, described support bed die 4 and bottom 304 grooves 3042 of described green compact 300 are connected.
Extremely shown in Figure 13 such as Fig. 7, described injection forming mould counter-rotating with standing upside down up and down makes described injection forming mould upright up and down, makes described support bed die 4 support the bottom 304 of described green compact 300, described cover mold 1 is positioned on the described body mould 2, described body mould 2 is positioned on the described support bed die 4.
To shown in Figure 13, described steps A is specially such as Fig. 7: ceramic powder is made into the mud 100 with flowability, described mud 100 is injected in the die cavity 5 of described injection forming mould.
To shown in Figure 13, described step B is specially such as Fig. 7: by described injection forming mould described mud 100 is carried out midge, form young base 200 behind overfall (namely mud 100 being taken out).
Extremely shown in Figure 13 such as Fig. 7, a kind of filling forming method and injection forming mould that prevents the fracture of product neck that the utility model provides, first the injection forming mould is stood upside down up and down, through forming young base 200 behind grouting, midge, the overfall, form in the contraction process of green compact 300 at young base 200, utilize the impact of gravity, it is the contraction distortion of slip casting product bottom that the contraction distortion of slip casting product neck is shifted, thereby has avoided the defective of slip casting product neck fracture.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. injection forming mould that prevents product neck fracture; it is characterized in that: comprise cover mold for moulding slip casting product oral area, be used for moulding slip casting product neck and belly the body mould, be used for the forming bottom die of moulding slip casting product bottom and be used for supporting the support bed die of slip casting product bottom; one end of described body mould and described cover mold; the other end of described body mould is connected with described forming bottom die or support bed die; wherein, described forming bottom die, to support bed die interchangeable.
2. the described injection forming mould that prevents product neck fracture according to claim 1, it is characterized in that: described forming bottom die is provided with the moulding boss for moulding slip casting product bottom, described support bed die is provided with for the support rim that supports slip casting product bottom, and the height of described support rim is greater than the height of described moulding boss.
3. the described injection forming mould that prevents product neck fracture according to claim 2, it is characterized in that: described support rim comprises the first support rim that supports slip casting product base flange and the second support rim that supports slip casting product bottom groove, and described the second support rim is arranged on described the first support rim.
4. the described injection forming mould that prevents product neck fracture according to claim 3 is characterized in that: be provided with stage portion between described the second support rim and described the first support rim.
5. the described injection forming mould that prevents product neck fracture according to claim 3, it is characterized in that: described the first support rim is the frustum of a cone, described the second support rim is the frustum of a cone.
6. the described injection forming mould that prevents product neck fracture according to claim 1, it is characterized in that: described cover mold is provided with the cover mold die cavity for moulding slip casting product oral area, and described cover mold die cavity is circular cone shape.
7. the described injection forming mould that prevents product neck fracture according to claim 1, it is characterized in that: described body mould is provided with body mould die cavity, described body mould die cavity comprises for the neck die cavity of moulding slip casting product neck and is used for the belly die cavity of moulding slip casting product belly, described belly die cavity is arc-shaped recess, and described neck die cavity is arc convex.
8. the described injection forming mould that prevents product neck fracture according to claim 7, it is characterized in that: described belly die cavity is opposite with the arcuate directions of described neck die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498157 CN202878445U (en) | 2012-09-26 | 2012-09-26 | Slip casting mold capable of preventing product neck portion from fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498157 CN202878445U (en) | 2012-09-26 | 2012-09-26 | Slip casting mold capable of preventing product neck portion from fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202878445U true CN202878445U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220498157 Withdrawn - After Issue CN202878445U (en) | 2012-09-26 | 2012-09-26 | Slip casting mold capable of preventing product neck portion from fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202878445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862213A (en) * | 2012-09-26 | 2013-01-09 | 云南永丰源普洱瓷有限公司 | Slip casting method and slip casting mould capable of preventing neck of product from being broken |
| CN107650239A (en) * | 2017-08-31 | 2018-02-02 | 安徽信息工程学院 | Gypsum injection forming mould |
-
2012
- 2012-09-26 CN CN 201220498157 patent/CN202878445U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862213A (en) * | 2012-09-26 | 2013-01-09 | 云南永丰源普洱瓷有限公司 | Slip casting method and slip casting mould capable of preventing neck of product from being broken |
| CN102862213B (en) * | 2012-09-26 | 2015-10-28 | 深圳市国瓷永丰源瓷业有限公司 | A kind of prevent product neck from rupturing filling forming method and injection forming mould |
| CN107650239A (en) * | 2017-08-31 | 2018-02-02 | 安徽信息工程学院 | Gypsum injection forming mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130417 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |