CN105014777A - Female die for ceramic cup product and using method thereof - Google Patents
Female die for ceramic cup product and using method thereof Download PDFInfo
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- CN105014777A CN105014777A CN201510459676.1A CN201510459676A CN105014777A CN 105014777 A CN105014777 A CN 105014777A CN 201510459676 A CN201510459676 A CN 201510459676A CN 105014777 A CN105014777 A CN 105014777A
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- Prior art keywords
- core rod
- gypsum
- former
- cover
- die
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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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating
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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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/001—Applying decorations on shaped articles, e.g. by painting
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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
- B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/285—Core puller
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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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
- B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Table Devices Or Equipment (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a female die for a ceramic cup product. The female die for the ceramic cup product comprises a first female die assembly. The first female die assembly comprises a first die core and a first annular steel die sleeve. A first annular die cavity is formed between the first steel die sleeve and the first die core. The first die core comprises a die core body and a die core cover. The die core body is made of silica gel. The die core body is hollow, so that a cavity is formed in the die core body. Concave-convex patterns are formed on the outer circumferential surface of the die core body. An inflating valve which can be used for inflation and deflation is further mounted on the die core cover. The female die is further provided with a second female die assembly. The second female die assembly comprises a second die core and a second annular steel die sleeve. A second die cavity is formed by a vertical gap and a radial gap between the second die core and the second steel die sleeve. The invention further provides a using method of the female die for the ceramic cup product. The distinct concave-convex patterns are formed on a ceramic cup finally manufactured; in addition, die releasing can be achieved easily, and abrasion to the concave-convex patterns is avoided in the die releasing process.
Description
Technical field
The invention belongs to the technical field of ceramic making equipment, particularly relate to a kind of master mold and using method thereof of ceramic cup goods.
Background technology
The base substrate of ceramic cup goods generally adopts the mode of former roll extrusion shaping, and wherein inner peripheral surface (face as shown in EF in Fig. 1) shape of former 3 is corresponding identical with the ceramic cup article periphery face shape that will make.Time shaping, former 3 is placed on the turntable of constantly rotation, moulded pottery not yet put in a kiln to bake is placed in former 3, moulded pottery not yet put in a kiln to bake againsts the inner peripheral surface of former, milled head 33 press against the inner peripheral surface of moulded pottery not yet put in a kiln to bake, and milled head 33 and former 3 rotate, due to the rotation of milled head around the axis of oneself respectively, moulded pottery not yet put in a kiln to bake in former is carried out roll extrusion and extends into ceramic cup body 4, as shown in Figure 2.
The former 3 of above-mentioned ceramic cup body adopts gypsum to make usually.The manufacturing process of gypsum former 3 needs to use mould equally, and the mould making gypsum former is just called " master mold ".Shown in Fig. 3, master mold comprises the punching block cover 12 of annular, punching block overlaps 12 central authorities and is provided with cup-shaped core rod 11, and the appearance profile of cup-shaped core rod 11, with similar with the appearance profile shape of the ceramic cup that finally will make, is formed as die cavity 13 between punching block cover 12 and cup-shaped core rod 11.When former makes, make it condense after gypsum being poured into this die cavity 13, as shown in Figure 4, then carry out the demoulding by the direction of arrow shown in Fig. 4, just obtain the gypsum former 3 shown in Fig. 1.
General ceramic cup outer peripheral face be the taper seat (general tapering is less than 1:10) that tapering is very little, or for the face of cylinder (be equivalent to tapering and equal 0).Therefore, when above-mentioned gypsum former 3 is from its master mold demoulding, the outer peripheral face of cup-shaped core rod 11 and the inner peripheral surface of gypsum former 3 can occur relatively vertically to slide, as shown by the arrows in Figure 4; Equally, when ceramic cup body 4 is from 3 demoulding of gypsum former, the outer peripheral face of ceramic cup body 4 and the inner peripheral surface generation relative sliding of gypsum former 3, as shown by the arrows in Figure 2.
For above-mentioned reasons, if the outer peripheral face of existing ceramic cup is wanted to be formed with relief pattern, then knockout course difficulty, knockout course can cause effect of attrition to relief pattern, and Design of Dies is complicated; In addition, because gypsum mobility is natively poor, and it is poorer in the mobility of convex-concave surface, therefore cup-shaped core rod 11 is being utilized to make in the process of gypsum former, there will be not full, the uncompacted situation of gypsum at convex-concave surface place, such as, the inner corner trim place of the cup-shaped core rod 11 of arrow c in figure 16, arrow d indication, gypsum is difficult to closely knit clamp-oning, and then can cause the problem of the not sharp or localized loss of relief pattern fuzzy, dim pattern, lines.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and master mold and using method thereof that a kind of ceramic cup goods are provided, it can make final obtained ceramic cup be formed with concavo-convex clearly demarcated pattern, and gypsum former is easy from its master mold knockout course, ceramic cup is easy from gypsum former knockout course, and knockout course can not cause wearing and tearing to relief pattern.
Its object can realize by following scheme: a kind of master mold of ceramic cup goods, include first set master mold assembly, first set master mold assembly includes the first punching block cover of the first core rod, annular, first core rod is arranged on the first punching block cover central authorities, radial clearance is left between first core rod and the first punching block cover central authorities, the inner peripheral surface of the first punching block cover is smooth, the first die cavity of annular is formed as between first punching block cover and the first core rod, its main feature is, the bottom of the bottom surface close contact first punching block cover of the first core rod, described first core rod comprises core rod body and core rod lid, core rod body adopts silica gel to make, core rod body hollow and be formed with cavity, the volume of cavity is equivalent to the 50%-85% of whole first core rod volume, the appearance profile of core rod body is similar with the appearance profile shape of the ceramic cup that will make, and the outer peripheral face of core rod body is formed with relief pattern, core rod lid adopts rigid material to make, and core rod lid to cover on the cavity of core rod body and by the cavities seals of core rod body, core rod covers the valve cock being also provided with and can inflating and exit, and valve cock comprises mouth body and valve inside, and valve inside is removably mounted in mouth body, be provided with two laminar spacers in the middle of first die cavity, the thickness of every sheet spacer is less than 1.5 millimeters, and the first die cavity is separated into left and right two parts isolated mutually by two spacers, also be provided with the second cover master mold assembly, second cover master mold assembly includes the second core rod, second punching block cover of annular, the external diameter of the second core rod is corresponding identical with the external diameter of the first die cavity, second core rod is arranged on the second punching block cover central authorities, the outer peripheral face of the second core rod is smooth, the inner peripheral surface of the second punching block cover is smooth, vertical gap is left between the bottom that the bottom surface of the second core rod and the second punching block overlap, also radial clearance is left between second core rod and the second punching block overlap, vertical gap between second core rod and the second punching block overlap and radial clearance are formed as the second die cavity, the vertical height of the second die cavity is less than the vertical height of the first die cavity, also be provided with charger, the gas outlet of charger is mated with described valve cock.
Also be provided with air-extractor, the bleeding point of air-extractor mates with the mouth body of valve cock.
A using method for ceramic cup goods master mold, comprises the following steps:
(1), by the valve inside of the first core rod be assembled on the mouth body of valve cock, make the air pressure of the cavity inside of the first core rod be normal pressure; In this case, the left and right two parts to the first die cavity of first set master mold assembly pour into gypsum respectively;
(2), gypsum perfused complete after, charger is utilized to be inflated by the cavity of valve cock to the first core rod, the air pressure of the first core rod cavity is made to reach 2 ~ 3 standard atmospheric pressures, first core rod expands and makes it closely knit gypsum extruding in first die cavity, this relief gypsum condenses, in gypsum condensation process, it is constant that the air pressure of the first core rod cavity remains 2-3 standard atmospheric pressure;
(3), first set gypsum former is formed as after gypsum condensation, first set gypsum former is formed by two, the left and right semi-circular incorporating aspects of split, the bottom hollow out of first set gypsum former, the inner peripheral surface of first set gypsum former is formed with relief pattern corresponding to side face external with core rod;
(4), by the valve inside of valve cock remove, the first core rod cavity exhaust, makes the air pressure of the first core rod cavity return to normal pressure; Then, the bleeding point of air-extractor is aimed at the mouth body of valve cock, implement to bleed to the first core rod cavity, make the cavity of the first core rod reach 0.4 ~ 0.8 standard atmospheric pressure, make the Silicon moulds core body of the first core rod become flat; After this, the first core rod is vertically spun off from first set gypsum former;
(5), then, by first set gypsum former and the first punching block cover from vertical disengagement;
(6), to the second die cavity perfusion gypsum of the second cover master mold assembly, be formed as the second cover gypsum former after gypsum condensation, the bottom of the second cover gypsum former condenses into sidewall and is integrated, and second overlaps gypsum former bottom lock and non-hollow out; After second cover gypsum former condensation, the second core rod and second are overlapped gypsum former from vertical disengaging, and the second punching block cover is overlapped gypsum former from vertical disengaging with second;
(7) the second cover gypsum former, step (6) obtained is enclosed within outside the first set gypsum former that step (5) obtains, second cover gypsum former by the left and right two halves clamping of first set gypsum former together, hollow out mouth bottom first set gypsum former is covered by the bottom of the second cover gypsum former, and it is fit that first set gypsum former and the second cover gypsum former form the female die set making ceramic cup body jointly;
(8), moulded pottery not yet put in a kiln to bake is placed in the female die set zoarium that step (7) obtains, moulded pottery not yet put in a kiln to bake againsts the inner peripheral surface of first set gypsum former and the bottom surface of the second cover gypsum former, drive the fit center axis thereof around oneself of female die set, utilize the milled head of rotation to press against moulded pottery not yet put in a kiln to bake simultaneously, due to the spreading of milled head, the moulded pottery not yet put in a kiln to bake in former is extended into ceramic cup body; The outer peripheral face of the ceramic cup body obtained is corresponding is formed with the relief pattern corresponding with the inner peripheral surface of first set gypsum former;
(9), by second cover gypsum former and first set gypsum former from vertical disengagement;
(10), the left and right two halves of first set gypsum former separate from left and right directions, realize ceramic cup body and the demoulding of first set gypsum former, finally obtain the ceramic cup body being formed with relief pattern.
The present invention has the following advantages and effect:
One, utilize master mold of the present invention to make and obtain the gypsum former that inner peripheral surface is formed with relief pattern, and then utilize this gypsum former to make to obtain the ceramic cup body that outer peripheral face is formed with relief pattern, and in above process, core rod body due to the first core rod adopts silica gel make and can become flat, and therefore gypsum former is easy from its master mold knockout course; In addition, ceramic cup body is also easy from the demoulding of gypsum former, and knockout course can not cause wearing and tearing, impact to relief pattern.
Two, after the first die cavity perfusion gypsum, charger is utilized to be inflated by the cavity of valve cock to the first core rod, the air pressure of the first core rod cavity is made to reach 2-3 standard atmospheric pressure, the first core rod can be made to expand a little, and then make it closely knit the gypsum not yet condensed extruding in first die cavity, can make that the relief pattern of gypsum former is clearly demarcated, lines are swift and fierce thus, the relief pattern finally realizing ceramic cup body is clearly demarcated, lines are swift and fierce.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the former of traditional ceramics cup base substrate.
Fig. 2 is the view utilizing former shown in Fig. 1 to make ceramic cup body.
Fig. 3 is the master structure schematic diagram of former shown in construction drawing 1.
Fig. 4 is the view utilizing the ceramic cup body former shown in the construction drawing of master mold shown in Fig. 31.
Fig. 5 is the vertical cross section structural representation of the first set master mold assembly of the specific embodiment of the invention.
Fig. 6 is the cross-sectional view of A-A in Fig. 5.
Fig. 7 is the vertical cross section structural representation of the second cover master mold assembly of the specific embodiment of the invention.
Fig. 8 is the view utilizing the master mold of first set shown in Fig. 5 establishment of component first set gypsum former.
Fig. 9 utilizes the second cover master mold establishment of component second shown in Fig. 6 to overlap the view of gypsum former.
Figure 10 is that first set gypsum former and second overlaps that gypsum former is inside and outside overlaps the view forming female die set zoarium mutually.
Figure 11 is the cross-sectional view of B-B in Figure 10.
Figure 12 is the view utilizing former shown in Figure 10 to make ceramic cup body.
Figure 13 is the intermediateness schematic diagram after being departed from by the second cover gypsum former in Figure 12.
Figure 14 is that the first set gypsum former in Figure 13 is divided right and left and view after departing from.
Figure 15 is the concrete structure schematic diagram of the first core rod in Fig. 5.
Figure 16 utilizes traditional means making with the schematic diagram of the ceramic cup gypsum former of relief pattern.
Detailed description of the invention
Embodiment one
Fig. 5, Fig. 6, the master mold of the ceramic cup goods shown in Fig. 7 includes first set master mold assembly 1, first set master mold assembly 1 includes the first core rod 11, first punching block cover 12 of annular, first core rod 11 is arranged on the first punching block cover 12 central authorities, first core rod 11 and the first punching block overlap between 12 central authorities and leave radial clearance, the inner peripheral surface of the first punching block cover 12 is smooth, the first die cavity 13 of annular is formed as between first punching block cover 12 and the first core rod 11, the bottom 120 of bottom surface (as shown in MN face in Fig. 5) the close contact first punching block cover 12 of the first core rod 11, both do not stay vertical gap, shown in Figure 15, described first core rod 11 comprises core rod body 110 and core rod lid 111, core rod body 110 adopts silica gel to make, core rod body 110 hollow and be formed with cavity 113, the volume of cavity 113 is equivalent to 75% of the volume of whole first core rod, the appearance profile of core rod body 110 is similar with the appearance profile shape of the ceramic cup (as shown in figure 14) that will make, the outer peripheral face of core rod body 110 is formed with relief pattern 114, core rod lid 111 adopts rigid inorganic material to make, core rod lid 111 covers and seals on the cavity 113 of core rod body and by the cavity 113 of core rod body, core rod lid 111 is also provided with the valve cock 112 that can inflate and exit, described valve cock 112 comprises mouth body and valve inside, and valve inside is removably mounted in mouth body, and valve inside has non-return valve function, the structure of valve cock 112 can as the valve cock of commercially available tire, also be provided with charger, air-extractor, the gas outlet of charger is mated with described valve cock, and the bleeding point of air-extractor mates with the mouth body of valve cock.Shown in Fig. 5, Fig. 6, Fig. 7, be provided with two laminar spacers 14 in the middle of the first die cavity 13, the thickness of every sheet spacer is 0.5 millimeter, and the first die cavity 13 is separated into left and right two parts isolated mutually by two spacers 14, also be provided with the second cover master mold assembly 2, second cover master mold assembly 2 includes the second core rod 21, second punching block cover 22 of annular, the external diameter of the second core rod 21 is corresponding identical with the external diameter of the first die cavity 13, second core rod 21 is arranged on the second punching block cover 22 central authorities, the outer peripheral face of the second core rod 21 is smooth, the inner peripheral surface of the second punching block cover 22 is smooth, vertical gap is left between the bottom 220 that the bottom surface (as shown in GH face in Fig. 7) of the second core rod 21 and the second punching block overlap 22, second core rod 21 and the second punching block also leave radial clearance between overlapping 22, vertical gap between second core rod and the second punching block overlap and radial clearance are formed as the second die cavity 23, the vertical height of the second die cavity 23 (h in Fig. 7
2shown in) be less than the vertical height (h in Fig. 5 of the first die cavity
1shown in).
Embodiment two
A using method for ceramic cup goods master mold described in embodiment one, comprises the following steps:
(1), at ambient pressure, be assembled on the mouth body of valve cock by the valve inside of the first core rod 1, the air pressure making cavity 113 inside of the first core rod is normal pressure; In this case, the left and right two parts to the first die cavity 13 of first set master mold assembly pour into gypsum respectively;
(2), gypsum perfused complete after, charger is utilized to be inflated by the cavity of valve cock 112 to the first core rod, the air pressure of the first core rod cavity is made to reach 2.5 standard atmospheric pressures, the core rod body 110 of the first core rod expands and makes it closely knit gypsum extruding in first die cavity, this relief gypsum condenses, in gypsum condensation process, it is constant that the air pressure of the first core rod cavity remains 2.5 standard atmospheric pressures, makes the core rod body 110 of the first core rod be in hard, glutted state;
(3), first set gypsum former 31 is formed as after gypsum condensation, as shown in Figure 8, first set gypsum former 31 is formed by two, the left and right semi-circular incorporating aspects of split, the bottom hollow out of first set gypsum former, the inner peripheral surface of first set gypsum former 31 is formed with relief pattern corresponding to side face external with core rod, as a in Figure 10 shown in b position;
(4), by the valve inside of valve cock 112 remove, the first core rod cavity 113 is vented, and makes the air pressure of the first core rod cavity 113 return to normal pressure; Then, the bleeding point of air-extractor is aimed at the mouth body of valve cock, implement to bleed to the first core rod cavity 113, make the cavity of the first core rod reach 0.6 standard atmospheric pressure, make the Silicon moulds core body 110 of the first core rod become flat; After this, the first core rod 11 is vertically spun off from first set gypsum former 31, as shown by the arrows in figure 8;
(5), then, first set gypsum former 31 and the first punching block are overlapped 12 from vertically throwing off (because the outer peripheral face of first set gypsum former 31 is smooth, above-mentioned detach procedure there is no hell and high water);
(6) the second die cavity 23, to the second cover master mold assembly pours into gypsum, be formed as the second cover gypsum former 32, second after gypsum condensation to overlap the bottom of gypsum former 32 and sidewall and condense into and be integrated, as shown in Figure 9, second cover gypsum former 32 bottom lock and non-hollow out; After second cover gypsum former 32 condenses, second core rod 21 and second is overlapped gypsum former 32 from vertical disengaging, and the second punching block cover 22 and second is overlapped gypsum former 32 from vertically departing from (because the second inner peripheral surface overlapping gypsum former 32, outer peripheral face are all smooth, above-mentioned detach procedure there is no hell and high water);
(7) the second cover gypsum former 32, step (6) obtained is enclosed within outside the first set gypsum former 31 that step (5) obtains, second cover gypsum former 32 by the left and right two halves clamping of first set gypsum former together, hollow out mouth bottom first set gypsum former 31 is covered by the bottom 220 of the second cover gypsum former 32, first set gypsum former 31 and the second cover gypsum former 32 jointly composition make the female die set zoarium of ceramic cup body, as shown in Figure 10, Figure 11;
(8), moulded pottery not yet put in a kiln to bake is placed in the female die set zoarium that step (7) obtains, moulded pottery not yet put in a kiln to bake againsts the inner peripheral surface of first set gypsum former 31 and the bottom surface of the second cover gypsum former 32, drive the fit center axis thereof around oneself of female die set, utilize the milled head 33 of rotation to press against moulded pottery not yet put in a kiln to bake simultaneously, due to the spreading of milled head 33, moulded pottery not yet put in a kiln to bake in former is extended and becomes ceramic cup body 4, as shown in figure 12; The outer peripheral face of the ceramic cup body 4 obtained is corresponding is formed with the relief pattern corresponding with the inner peripheral surface of first set gypsum former 31, as shown in arrow e, arrow f position in Figure 14;
(9), gypsum former 32 is overlapped with first set gypsum former 31 from vertically throwing off (because the outer peripheral face of first set gypsum former 31 is smooth, above-mentioned detach procedure there is no hell and high water) by second; Ceramic cup body 4 after disengagement and first set gypsum former 31 are as shown in figure 13;
(10), by the left and right two halves of the first set gypsum former 31 in Figure 13 from interface 310(interface as shown in figure 11) divide right and left, realize ceramic cup body 4 and the demoulding of first set gypsum former 31, ceramic cup body 4 after the demoulding as shown in figure 14, finally obtain the ceramic cup body 4 being formed with relief pattern, after this ceramic cup body can be entered stove sintering, and obtain the ceramic cup finished product with relief pattern.
In above-described embodiment one, the thickness of every sheet spacer can change 1.4 millimeters into, or changes 0.25 millimeter into.
In above-described embodiment one, the volume of cavity 113 can change 50% of the volume being equivalent to whole first core rod into, or 85%.
In above-described embodiment one, core rod lid 111 can change into and adopt metal material to make.
In the step (2) of above-described embodiment two, the air pressure of the first core rod cavity can change 2 standard atmospheric pressures (and always remaining 2 standard atmospheric pressures in this step) into, or 3 standard atmospheric pressures (and always remaining 3 standard atmospheric pressures in this step).
In the step (4) of above-described embodiment two, make the air pressure of the cavity of the first core rod can change 0.4 standard atmospheric pressure into, or 0.8 standard atmospheric pressure.
Claims (3)
1. the master mold of ceramic cup goods, include first set master mold assembly, first set master mold assembly includes the first punching block cover of the first core rod, annular, first core rod is arranged on the first punching block cover central authorities, radial clearance is left between first core rod and the first punching block cover central authorities, the inner peripheral surface of the first punching block cover is smooth, is formed as the first die cavity of annular, it is characterized in that between the first punching block cover and the first core rod: the bottom of the bottom surface close contact first punching block cover of the first core rod, described first core rod comprises core rod body and core rod lid, core rod body adopts silica gel to make, core rod body hollow and be formed with cavity, the volume of cavity is equivalent to the 50%-85% of whole first core rod volume, the appearance profile of core rod body is similar with the appearance profile shape of the ceramic cup that will make, and the outer peripheral face of core rod body is formed with relief pattern, core rod lid adopts rigid material to make, and core rod lid to cover on the cavity of core rod body and by the cavities seals of core rod body, core rod covers the valve cock being also provided with and can inflating and exit, and valve cock comprises mouth body and valve inside, and valve inside is removably mounted in mouth body, be provided with two laminar spacers in the middle of first die cavity, the thickness of every sheet spacer is less than 1.5 millimeters, and the thickness of every sheet spacer is less than 1.5 millimeters, and the first die cavity is separated into left and right two parts isolated mutually by two spacers, also be provided with the second cover master mold assembly, second cover master mold assembly includes the second core rod, second punching block cover of annular, the external diameter of the second core rod is corresponding identical with the external diameter of the first die cavity, second core rod is arranged on the second punching block cover central authorities, the outer peripheral face of the second core rod is smooth, the inner peripheral surface of the second punching block cover is smooth, vertical gap is left between the bottom that the bottom surface of the second core rod and the second punching block overlap, also radial clearance is left between second core rod and the second punching block overlap, vertical gap between second core rod and the second punching block overlap and radial clearance are formed as the second die cavity, the vertical height of the second die cavity is less than the vertical height of the first die cavity, also be provided with charger charger, the gas outlet of charger is mated with described valve cock.
2. according to claim 1 the master mold of ceramic cup goods, it is characterized in that: be also provided with air-extractor, the bleeding point of air-extractor mates with the mouth body of valve cock.
3. ceramic cup goods master mold a using method, it is characterized in that comprising the following steps:
(1), by the valve inside of the first core rod be assembled on the mouth body of valve cock, make the air pressure of the cavity inside of the first core rod be normal pressure; In this case, the left and right two parts to the first die cavity of first set master mold assembly pour into gypsum respectively;
(2), gypsum perfused complete after, charger is utilized to be inflated by the cavity of valve cock to the first core rod, the air pressure of the first core rod cavity is made to reach 2 ~ 3 standard atmospheric pressures, first core rod expands and makes it closely knit gypsum extruding in first die cavity, this relief gypsum condenses, in gypsum condensation process, it is constant that the air pressure of the first core rod cavity remains 2-3 standard atmospheric pressure;
(3), first set gypsum former is formed as after gypsum condensation, first set gypsum former is formed by two, the left and right semi-circular incorporating aspects of split, the bottom hollow out of first set gypsum former, the inner peripheral surface of first set gypsum former is formed with relief pattern corresponding to side face external with core rod;
(4), by the valve inside of valve cock remove, the first core rod cavity exhaust, makes the air pressure of the first core rod cavity return to normal pressure; Then, the bleeding point of air-extractor is aimed at the mouth body of valve cock, implement to bleed to the first core rod cavity, make the cavity of the first core rod reach 0.4 ~ 0.8 standard atmospheric pressure, make the Silicon moulds core body of the first core rod become flat; After this, the first core rod is vertically spun off from first set gypsum former;
(5), then, by first set gypsum former and the first punching block cover from vertical disengagement;
(6), to the second die cavity perfusion gypsum of the second cover master mold assembly, be formed as the second cover gypsum former after gypsum condensation, the bottom of the second cover gypsum former condenses into sidewall and is integrated, and second overlaps gypsum former bottom lock and non-hollow out; After second cover gypsum former condensation, the second core rod and second are overlapped gypsum former from vertical disengaging, and the second punching block cover is overlapped gypsum former from vertical disengaging with second;
(7) the second cover gypsum former, step (6) obtained is enclosed within outside the first set gypsum former that step (5) obtains, second cover gypsum former by the left and right two halves clamping of first set gypsum former together, hollow out mouth bottom first set gypsum former is covered by the bottom of the second cover gypsum former, and it is fit that first set gypsum former and the second cover gypsum former form the female die set making ceramic cup body jointly;
(8), moulded pottery not yet put in a kiln to bake is placed in the female die set zoarium that step (7) obtains, moulded pottery not yet put in a kiln to bake againsts the inner peripheral surface of first set gypsum former and the bottom surface of the second cover gypsum former, drive the fit center axis thereof around oneself of female die set, utilize the milled head of rotation to press against moulded pottery not yet put in a kiln to bake simultaneously, due to the spreading of milled head, the moulded pottery not yet put in a kiln to bake in former is extended into ceramic cup body; The outer peripheral face of the ceramic cup body obtained is corresponding is formed with the relief pattern corresponding with the inner peripheral surface of first set gypsum former;
(9), by second cover gypsum former and first set gypsum former from vertical disengagement;
(10), the left and right two halves of first set gypsum former separate from left and right directions, realize ceramic cup body and the demoulding of first set gypsum former, finally obtain the ceramic cup body being formed with relief pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510459676.1A CN105014777B (en) | 2015-07-31 | 2015-07-31 | The master mold of ceramic cup product and its using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106541490A (en) * | 2016-12-22 | 2017-03-29 | 华侨大学 | A kind of preparation facilitiess and its using method of prefabricated connecting hole |
| CN106863557A (en) * | 2017-03-28 | 2017-06-20 | 湖南思为科技开发股份有限公司 | Internal expansion type building block forming device and method |
| CN107866524A (en) * | 2017-12-08 | 2018-04-03 | 柳州智云科技有限公司 | A kind of preparation method of the casting molds for being easy to the demoulding based on 3D printing |
| CN110871490A (en) * | 2019-12-03 | 2020-03-10 | 王美英 | Concrete mould convenient to demoulding |
| CN112008833A (en) * | 2020-08-17 | 2020-12-01 | 江苏盛容醇金科技发展有限公司 | Glaze-free pottery jar integrated into one piece device |
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| CN106541490A (en) * | 2016-12-22 | 2017-03-29 | 华侨大学 | A kind of preparation facilitiess and its using method of prefabricated connecting hole |
| CN106863557A (en) * | 2017-03-28 | 2017-06-20 | 湖南思为科技开发股份有限公司 | Internal expansion type building block forming device and method |
| CN107866524A (en) * | 2017-12-08 | 2018-04-03 | 柳州智云科技有限公司 | A kind of preparation method of the casting molds for being easy to the demoulding based on 3D printing |
| CN110871490A (en) * | 2019-12-03 | 2020-03-10 | 王美英 | Concrete mould convenient to demoulding |
| CN112008833A (en) * | 2020-08-17 | 2020-12-01 | 江苏盛容醇金科技发展有限公司 | Glaze-free pottery jar integrated into one piece device |
| CN112008833B (en) * | 2020-08-17 | 2022-08-19 | 江苏盛容醇金科技发展有限公司 | Glaze-free pottery jar integrated into one piece device |
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