CN104552561A - Multi-hole mould for slip casting - Google Patents
Multi-hole mould for slip casting Download PDFInfo
- Publication number
- CN104552561A CN104552561A CN201510022209.2A CN201510022209A CN104552561A CN 104552561 A CN104552561 A CN 104552561A CN 201510022209 A CN201510022209 A CN 201510022209A CN 104552561 A CN104552561 A CN 104552561A
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- China
- Prior art keywords
- mold
- slip casting
- injection forming
- mould
- main body
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Classifications
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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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
- B28B1/261—Moulds therefor
Abstract
The invention discloses a multi-hole mould for slip casting. The multi-hole mould for slip casting comprises a mould body and a mould cover. The mould body is of a hollow double-layer structure and is composed of an inner mould and an outer mould, a cavity is formed between the inner mould and the outer mould, and through holes are formed in the inner mould; a grouting cavity with the open top is formed by the inner mould, and the mould cover is used for sealing the grouting cavity. By the adoption of the multi-hole mould for slip casting, water removal of slurry can be promoted, molding of a blank body of a product is promoted, working efficiency is greatly improved, the problem that the thicknesses of the portions, in different directions, of the molded blank body are not uniform is solved through short-time molding, and the defects that the finished product cracks, and the flatness is poor are greatly overcome.
Description
Technical field
The present invention relates to injection forming field, particularly relate to a kind of porous mold for injection forming.
Background technology
Injection forming is a kind of ceramic molding of simple, usually using gypsum as shaping mould.In the art, when using gypsum mold article of manufacture, the slurry injected in gypsum mold contains a large amount of moisture, and these moisture needs the base substrate being absorbed and then obtain product by gypsum mold.
Impel the blank forming of goods owing to needing by gypsum mold self water suction, so require that the thickness of gypsum mold is generally at 6 ~ 8 cm, and blank forming needs 8 hours, then to need again after several hours base substrate could with mould separated demolding.
Correspondingly, because slurry needs to rest in gypsum mold for a long time, the bulk density difference that slurry is upper and lower in gypsum mold, makes density and the thickness difference of the upper and lower diverse location of the base substrate of formation, causes in the product drying stage, shrinkage factor is different, cause the Stress Release of finished product different structure position different, thus produce the mass defects such as cracking, correspondingly, the inconsistent distortion that also finally can cause product base substrate that all directions are shunk, poor flatness.
Meanwhile, in the art, absorb the large quantity of moisture in slurry due to gypsum mold, often utilize gypsum mold to produce 5 ~ 6 base substrates, then the moisture in gypsum mold can be made to reach capacity.When needs continue to produce, gypsum mold must be dried and just can carry out base again; And the time of the process need at substantial of drying (such as, under normal circumstances, gypsum mold can only realize a base for one day, produces daytime to dry gypsum mold evening, also needs to stop specially mould abundant drying die over a day after base 5 ~ 6 times); Therefore, gypsum mold base is used to there is inefficient defect.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of porous mold for injection forming, and structure is simple, can improve the drainage speed of slurry, increase work efficiency, improve end product quality.
In order to solve the problems of the technologies described above, the invention provides a kind of porous mold for injection forming, comprising: die main body and die cover; The double-decker of the hollow that described die main body is made up of internal mold and external mold, forms cavity between described internal mold and external mold, and described internal mold is provided with through hole; Described internal mold forms the slip casting chamber that top is opened wide, and described die cover is for sealing slip casting chamber.
As the improvement of such scheme, described die cover is provided with grouting port, and described grouting port is connected with grouting equipment, to make grouting equipment to slip casting in slip casting chamber.
As the improvement of such scheme, described grouting port is also connected with pressurized equipment, pressurizes to slip casting chamber to make pressurized equipment.
As the improvement of such scheme, described external mold is provided with the bleeding point be connected with cavity, and described bleeding point is connected with vacuum-pumping equipment, vacuumizes process to make vacuum-pumping equipment to cavity.
As the improvement of such scheme, the cross section of described cavity is in " U " shape, and described cavity bottom is provided with discharge outlet.
As the improvement of such scheme, the described porous mold for injection forming also comprises filter course, and described filter course is located on the inwall of described internal mold.
As the improvement of such scheme, described die main body by two independently the split of submodule tool form, it is sealed that the junction of described two sub-moulds mates sealing mutually.
As the improvement of such scheme, the described porous mold for injection forming also comprises sealing frame, the joint face of described two independently submodule tools is respectively equipped with groove, described sealing frame and groove suitable, described sealing frame is embedded in groove, and to make described two, independently to carry out sealing by sealing frame between submodule tool sealed.
As the improvement of such scheme, the top of described die main body is provided with seal groove, is provided with sealing ring in described seal groove, is sealed by sealing ring to make described die cover to slip casting chamber.
As the improvement of such scheme, described die main body is made up of rigid material.
Implement the present invention, there is following beneficial effect:
The double-decker of the hollow that die main body of the present invention is made up of internal mold and external mold, forms cavity between internal mold and external mold and inner membrance is loose structure.By this double-decker and loose structure, pressurization or the mode that vacuumizes can be adopted respectively or simultaneously to change the pressure of internal mold both sides, promote the draining of slurry, facilitate goods blank forming, substantially increase operating efficiency, the shaping problem avoiding shaping rear base substrate all directions uneven thickness of short time, substantially improves the defect of finished product cracking, poor flatness.
Meanwhile, die main body is made up of rigid material, substantially reduces the thickness of die main body, after slip casting, can heat die main body, promotes the drying of the inner base substrate in slip casting chamber, shortens the disengaging time of base substrate and die main body.
In addition, the present invention utilizes filter course as the separation layer in base substrate and slip casting chamber, accelerates the separated demolding in molding blank and slip casting chamber, moisture also can be made to be smoothly through filter course, and stop pulp particle to pass through filter course.
Accompanying drawing explanation
Fig. 1 is the first example structure exploded view of the present invention for the porous mold of injection forming;
Fig. 2 is the sectional view of the present invention for die main body in the porous mold of injection forming;
Fig. 3 is the second example structure exploded view of the present invention for the porous mold of injection forming;
Fig. 4 is the three example structure exploded view of the present invention for the porous mold of injection forming;
Fig. 5 is the four example structure exploded view of the present invention for the porous mold of injection forming;
Fig. 6 is the five example structure exploded view of the present invention for the porous mold of injection forming.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.Only this statement, the present invention occurs in the text or is about to the up, down, left, right, before and after occurred, the orientation word such as inside and outside, only with accompanying drawing of the present invention for benchmark, it is not to concrete restriction of the present invention.
Show first embodiment of the present invention for the porous mold of injection forming see Fig. 1 and Fig. 2, Fig. 1 and Fig. 2, comprise die main body 1 and die cover 2.Wherein, the double-decker of the hollow that described die main body 1 is made up of internal mold 11 and external mold 12, forms cavity 13 between described internal mold 11 and external mold 12, and described internal mold 11 is provided with through hole 14, forms loose structure; Described internal mold 11 forms the slip casting chamber 15 that top is opened wide, and described mould 2 covers for sealing slip casting chamber 15.
As shown in Figure 2, discharge outlet 16 is provided with bottom described cavity 13.Cavity 13 can be used for the moisture separated in storing slurry, be located at discharge outlet 16 bottom cavity 13 with sealing device, the air-tightness that discharge outlet 16 ensures cavity 13 is freely sealed by sealing device, or by sealing device opening water discharge mouth 16 to discharge the ponding in cavity 13.
As shown in Figure 1, described die main body 1 by two independently the split of submodule tool form, it is sealed that the junction of described two sub-moulds mates sealing mutually, combination, convenient disassembly.
Die main body 1 of the present invention is the double-decker of hollow, makes to form cavity 13 between internal mold 11 and external mold 12.Before slip casting, split two independently submodule tool, forms die main body 1; During slip casting, open die cover 2, slurry is injected in slip casting chamber 15, and cover die cover 2 pairs of die main bodies 1 and seal, in slip casting chamber 15, the moisture of slurry is expelled in cavity 13 by through hole 14, realize blank forming, moisture accumulation bottom cavity 13, by sealing device opening water discharge mouth 16 to discharge the ponding in cavity 13; After blank forming, die main body 1 is split as two sub-moulds, takes out molding blank, convenient and swift.
Described through hole 14 is uniformly distributed on internal mold 11 in an orderly manner, is expelled to cavity 13 to make the moisture of slurry in slip casting chamber 15 rapidly by through hole 14.Such as, the through hole 14 of internal mold 11 sidewall can in cellular, array-like distribution, and the through hole 14 bottom internal mold 11 radially distributes, but not as restriction.
The aperture of through hole 14 is determined according to the size of slurry internal particle and the viscosity of slurry, and pulp particle is larger, viscosity is larger, and the aperture of through hole is also larger.The aperture of through hole 14 is preferably 0.1mm ~ 2.0mm, but not as restriction.Such as, produce for ceramic sanitary appliance, the aperture of through hole is comparatively applicable at about 0.5mm, can ensure that the water overflowed after pressurizeing can fast speed be discharged on the one hand, can not clamp-on through hole because of the particulate fraction in slurry and form kick one by one in shaping billet surface simultaneously.
The cross section of described cavity 13 is preferably " U " shape, but not as restriction.The cross section of " U " shape can make slip casting chamber 15 be surrounded completely by cavity 13, and slurry can be expelled to cavity 13 rapidly from the through hole 14 be distributed in inner membrance 11.
Described die main body 1 is made up of rigid material, such as: rigid plastics, resin, pottery, metal, alloy etc., but not as restriction.Adopt the material mfg. moulding die main body 1 of good rigidly, greatly can reduce the thickness of die main body 1; Meanwhile, the heating of uniform temperature can be carried out to die main body 1, promote the drying of the inner base substrate of die main body 1, shorten the disengaging time of base substrate and die main body 1.
See Fig. 3, Fig. 3 shows second embodiment of the present invention for the porous mold of injection forming, with shown in Fig. 1 for the first embodiment of the porous mold of injection forming unlike, the porous mold for injection forming shown in Fig. 3 also comprises sealing frame 3, the joint face of described two independently submodule tools is respectively equipped with groove 4, described sealing frame 3 is suitable with groove 4, and described sealing frame 3 is embedded in groove 4, and to make described two, independently to carry out sealing by sealing frame 3 between submodule tool sealed.The shape of sealing frame 3 and the mating shapes of cavity 13, because sealing frame 3 is embedded in groove 4, therefore by two independently submodule tool junction combine closely, ensure the inner wall smooth in slip casting chamber 15, make base substrate have good molding effect, green body quality is provided.
In addition, the top of described die main body 1 is provided with seal groove 5, is provided with sealing ring 6 in described seal groove 5, is sealed by sealing ring 6 pairs of slip casting chambeies 15 to make described die cover 2.
See Fig. 4, Fig. 4 shows three embodiment of the present invention for the porous mold of injection forming, with shown in Fig. 3 for the second embodiment of the porous mold of injection forming unlike, the die cover 2 of the porous mold for injection forming shown in Fig. 4 is provided with grouting port 7, described grouting port 7 is connected with grouting equipment, to make grouting equipment to slip casting in slip casting chamber 15.
Grouting port 7 can be sealed by sealing device, also can be connected with grouting equipment, can also be connected with pressurized equipment, pressurizes to slip casting chamber to make pressurized equipment.
During slip casting, grouting port 7 being connected with grouting equipment, slurry being injected in slip casting chamber 15, without the need to opening die cover 2, operating more convenient; After completing slip casting, grouting port 7 is connected with pressurized equipment, pressurized treatments is carried out to slip casting chamber 15, increase the pressure in slip casting chamber 15, accelerate the separating rate of slurry and moisture, promote the draining of slurry, accelerate blank forming speed.
See Fig. 5, Fig. 5 shows four embodiment of the present invention for the porous mold of injection forming, with shown in Fig. 4 for the 3rd embodiment of the porous mold of injection forming unlike, the external mold 12 of the porous mold for injection forming shown in Fig. 5 is provided with the bleeding point 8 be connected with cavity 13, described bleeding point 8 is connected with vacuum-pumping equipment, vacuumizes process to make vacuum-pumping equipment to cavity 13.
After slip casting, by vacuum-pumping equipment, process is vacuumized to cavity, destroy the pressure balance between cavity 13 and slip casting chamber 15, namely by reducing the pressure in cavity 13, thus the pressure increased in slip casting chamber 15, accelerate the separating rate of slurry and moisture, promote the draining of slurry, accelerate blank forming speed.
It should be noted that, die main body 1 can adopt pressurization respectively or simultaneously or vacuumize two kinds of modes and promote that the draining of slurry is to facilitate goods blank forming.The molding time of goods base substrate can by the pressure pressurizeed and time, or the time vacuumized directly controls, and can complete the shaping of base substrate, substantially increase operating efficiency in a few minutes; Meanwhile, the shaping problem avoiding shaping rear base substrate all directions uneven thickness of short time, substantially improves the defect of finished product cracking, poor flatness.
The quantity of described bleeding point 8 can be one or more, can arrange according to actual needs, to regulate the speed vacuumized.
See Fig. 6, Fig. 6 shows five embodiment of the present invention for the porous mold of injection forming, with shown in Fig. 5 for the 4th embodiment of the porous mold of injection forming unlike, the porous mold for injection forming shown in Fig. 6 also comprises filter course 9, and described filter course 9 is located on the inwall of described internal mold 11.
The movable setting of filter course 9 or be fixedly installed on the inwall of inner membrance 11.Preferably, filter course 9 can for there being the soft quality osmosis filtering materials such as filter paper, filter cloth, filter meagre strength sheet of certain style-ability.Correspondingly, filter course 9 needs less filter opening, make moisture be smoothly through filter opening, but pulp particle is not by filter opening, and filter course 9 also has certain style-ability simultaneously, can not be too soft, and guarantee pulp particle is effectively separated with moisture.
Filter course 9 employing activity set-up mode, namely before slip casting, paving filter course 9 on the inwall of internal mold 11, carry out slip casting again, make the slurry of injection in pressurization or after vacuumizing, moisture can be made by filter course pulp particle not by, ensure the Forming Quality of base substrate.Meanwhile, filter course 9, as the separation layer of base substrate and die main body 1, can accelerate the separated demolding of molding blank and die main body 1.
Filter course 9 adopts and is fixedly installed mode, namely according to shape directly tailor-made integral filter layer 9 liner of inner membrance 11, operates more convenient.
As from the foregoing, die main body 1 of the present invention is the double-decker of hollow, forms cavity 13 and inner membrance 11 is loose structure between internal mold 11 and external mold 12.The present invention can adopt pressurization or the mode that vacuumizes to promote the draining of slurry respectively or simultaneously, facilitate goods blank forming, substantially increase operating efficiency, the shaping problem avoiding shaping rear base substrate all directions uneven thickness of short time, substantially improve the defect of finished product cracking, poor flatness; Meanwhile, adopt the material mfg. moulding die main body 1 that rigidity is good, substantially reduce the thickness of die main body 1, after slip casting, can heat die main body 1, promote the drying of the inner base substrate in slip casting chamber 15, shorten the disengaging time of base substrate and die main body 1; Utilize filter course 9 as the separation layer in base substrate and slip casting chamber 15, accelerate the separated demolding in molding blank and slip casting chamber 15, moisture also can be made to be smoothly through filter course 9, and stop pulp particle to pass through filter course.In addition, the present invention also may be used for the formed product of all employing injection formings and plastics sucking moulding.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. for a porous mold for injection forming, it is characterized in that, comprise die main body and die cover;
The double-decker of the hollow that described die main body is made up of internal mold and external mold, forms cavity between described internal mold and external mold, and described internal mold is provided with through hole;
Described internal mold forms the slip casting chamber that top is opened wide, and described die cover is for sealing slip casting chamber.
2., as claimed in claim 1 for the porous mold of injection forming, it is characterized in that, described die cover is provided with grouting port, and described grouting port is connected with grouting equipment, to make grouting equipment to slip casting in slip casting chamber.
3., as claimed in claim 2 for the porous mold of injection forming, it is characterized in that, described grouting port is also connected with pressurized equipment, pressurizes to slip casting chamber to make pressurized equipment.
4., as claimed in claim 1 for the porous mold of injection forming, it is characterized in that, described external mold is provided with the bleeding point be connected with cavity, and described bleeding point is connected with vacuum-pumping equipment, vacuumizes process to make vacuum-pumping equipment to cavity.
5. as claimed in claim 1 for the porous mold of injection forming, it is characterized in that, the cross section of described cavity is in " U " shape, and described cavity bottom is provided with discharge outlet.
6., as claimed in claim 1 for the porous mold of injection forming, it is characterized in that, also comprise filter course, described filter course is located on the inwall of described internal mold.
7., as claimed in claim 1 for the porous mold of injection forming, it is characterized in that, described die main body by two independently the split of submodule tool form, it is sealed that the junction of described two sub-moulds mates sealing mutually.
8. as claimed in claim 7 for the porous mold of injection forming, it is characterized in that, also comprise sealing frame, the joint face of described two independently submodule tools is respectively equipped with groove, described sealing frame and groove suitable, described sealing frame is embedded in groove, and to make described two, independently to carry out sealing by sealing frame between submodule tool sealed.
9., as claimed in claim 1 for the porous mold of injection forming, it is characterized in that, the top of described die main body is provided with seal groove, is provided with sealing ring in described seal groove, is sealed by sealing ring to make described die cover to slip casting chamber.
10. the porous mold for injection forming as described in any one of claim 1 ~ 9, is characterized in that, described die main body is made up of rigid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022209.2A CN104552561A (en) | 2015-01-16 | 2015-01-16 | Multi-hole mould for slip casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022209.2A CN104552561A (en) | 2015-01-16 | 2015-01-16 | Multi-hole mould for slip casting |
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| Publication Number | Publication Date |
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| CN104552561A true CN104552561A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510022209.2A Pending CN104552561A (en) | 2015-01-16 | 2015-01-16 | Multi-hole mould for slip casting |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863543A (en) * | 2017-02-21 | 2017-06-20 | 芜湖映日科技有限公司 | A kind of injection forming mould |
| CN106985261A (en) * | 2017-04-07 | 2017-07-28 | 中国船舶重工集团公司第七二五研究所 | The centrifugal pressure method of ITO rotary target base substrate one sides and mould |
| CN107280372A (en) * | 2016-03-31 | 2017-10-24 | 诸暨市知联电子科技有限公司 | A kind of non-scald on hand cup and preparation method |
| CN107755644A (en) * | 2017-10-19 | 2018-03-06 | 南阳飞龙汽车零部件有限公司 | A kind of casting sand type mold cavity surface cure process device and preparation method thereof |
| CN108748611A (en) * | 2018-06-15 | 2018-11-06 | 中国科学院上海硅酸盐研究所 | A kind of forming method of ceramic body |
| CN110370426A (en) * | 2019-07-29 | 2019-10-25 | 福建阿石创新材料股份有限公司 | A kind of preparation method of centrifugal forming device and ITO rotary target material |
-
2015
- 2015-01-16 CN CN201510022209.2A patent/CN104552561A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280372A (en) * | 2016-03-31 | 2017-10-24 | 诸暨市知联电子科技有限公司 | A kind of non-scald on hand cup and preparation method |
| CN106863543A (en) * | 2017-02-21 | 2017-06-20 | 芜湖映日科技有限公司 | A kind of injection forming mould |
| CN106985261A (en) * | 2017-04-07 | 2017-07-28 | 中国船舶重工集团公司第七二五研究所 | The centrifugal pressure method of ITO rotary target base substrate one sides and mould |
| CN107755644A (en) * | 2017-10-19 | 2018-03-06 | 南阳飞龙汽车零部件有限公司 | A kind of casting sand type mold cavity surface cure process device and preparation method thereof |
| CN108748611A (en) * | 2018-06-15 | 2018-11-06 | 中国科学院上海硅酸盐研究所 | A kind of forming method of ceramic body |
| CN110370426A (en) * | 2019-07-29 | 2019-10-25 | 福建阿石创新材料股份有限公司 | A kind of preparation method of centrifugal forming device and ITO rotary target material |
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Application publication date: 20150429 |