CN104149178A - Upper die structure used for pressure casting of saggars - Google Patents

Upper die structure used for pressure casting of saggars Download PDF

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Publication number
CN104149178A
CN104149178A CN201410365849.9A CN201410365849A CN104149178A CN 104149178 A CN104149178 A CN 104149178A CN 201410365849 A CN201410365849 A CN 201410365849A CN 104149178 A CN104149178 A CN 104149178A
Authority
CN
China
Prior art keywords
die
core
mould
counterdie
mould core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410365849.9A
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Chinese (zh)
Inventor
高寿林
赵梦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Li Xin High-Temperature Refractory Co Ltd
Original Assignee
Zhejiang Li Xin High-Temperature Refractory Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Li Xin High-Temperature Refractory Co Ltd filed Critical Zhejiang Li Xin High-Temperature Refractory Co Ltd
Priority to CN201410365849.9A priority Critical patent/CN104149178A/en
Publication of CN104149178A publication Critical patent/CN104149178A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/0097Press moulds; Press-mould and press-ram assemblies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/40Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/42Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for heating or cooling, e.g. steam jackets, by means of treating agents acting directly on the moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/40Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/44Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating

Abstract

The invention discloses an upper die structure used for pressure casting of saggars. The upper die structure comprises an upper die fixing plate and an upper die core fixed below the upper die fixing plate, the section of the upper die core is T-shaped, an upper-die inner cavity is arranged in the bottom surface, a fill block is embedded in the upper-die inner cavity, a cooling water passage is arranged in the upper die core, is distributed on the longitudinal cross-section in the shape of a Chinese character 'jing' and comprises two transverse water passages and two longitudinal water passages, the transverse water passages are bilaterally-communicated through holes, the longitudinal water passages are blind holes from top to bottom, and an exhaust duct is arranged in the center of the upper die core and penetrates the fill block, the top face of the upper-die inner cavity and the upper die fixing plate sequentially from bottom to top. Exhausting and cooling effect is good, and the pressed saggars are few in air holes and good in firmness.

Description

A kind of upper die structure of using for die casting saggar
Technical field
The present invention relates to a kind of upper die structure of using for die casting saggar.
Background technology
Saggar is a kind of common kiln furnitures; when manufacturing industry is not popularized, all adopting earth to fire forms; after modern manufacturing industry development; replace traditional earth with refractory material gradually; and in manufacturing process, be also slowly evolved into the industrialization mode of production by the moulding of press die casting refractory material; often can run into die casting while utilizing press die casting time, die venting is not smooth, causes the saggar inwall pore of extrusion more, and firmness is bad.
Summary of the invention
The technical issues that need to address of the present invention are, a kind of upper die structure of using for die casting saggar is provided, exhaust and good cooling results, and also the saggar pore extruding is few, and firmness is good.
Technical scheme of the present invention is: a kind of upper die structure of using for die casting saggar, comprise upper mould fixed plate and be fixed on the upper mould core of upper mould fixed plate below, described upper mould core cross section is inversion " protruding " word shape, bottom surface is provided with mold cavity, in upper mold cavity, be inlaid with filling block, in described upper mould core, be provided with cooling water channel, described cooling water channel distributes and is " well " word shape on longitudinal cross-section, comprise two cross channels and two longitudinal water channels, described cross channel is the through hole that left and right connects, described longitudinal water channel is blind hole from top to bottom, described upper mould core center is provided with discharge duct, described discharge duct runs through filling block from the bottom up successively, upper mold cavity end face, upper mould fixed plate.
Preferably, described upper mould core is die hard steel body, described filling block is modified 45# steel body, upper mould core is mainly born part because be mainly pressure, so adopt the higher die hard steel of hardness, the filling block at Er Qi center is for the effect of die casting saggar profile not obvious, so can adopt modified 45# steel that hardness is lower to reduce cost.
Preferably, described cooling water channel is distributed in filling block outside, and the main heat of press compacting refractory material concentrates on the outer surface of upper mould core, and filling block place heat is concentrated less, so cooling water channel need not pass through filling block, has also saved the technique of processing cooling water channel on filling block.
Preferably, described cooling water channel is at water inlet of the left and right of cross channel Ge Liu and delivery port, and all the other outlets are all provided with rubber stopper and stop up, and can allow so whole water route form a circuit cycle, repeat to flow.
Preferably, described discharge duct bottom is bell, facilitates air to enter discharge duct, realizes at utmost exhaust.
Adopt after the technical program, in upper mould core, inlay filling block, filling block can be lower-cost steel, reduce the cost of material of whole upper mould core, and in upper mould core, be provided with cooling water channel, core surface temperature can be not too high after repeatedly pressing down process to make upper mould core, because excess Temperature can affect the brittleness of core surface, thereby affect the mould life-span itself, finally be provided with discharge duct in the centre of upper mould core, when upper mould core is pressed down, air between upper mould core and counterdie core rod is discharged from discharge duct, air can not rested in refractory material, realize the effect that reduces the pore in finished product saggar, along with pore reduces, the firmness of saggar has just increased.
Brief description of the drawings
The overall schematic three dimensional views that accompanying drawing 1 is press die;
What accompanying drawing 2 was press die partly cuts open schematic diagram;
Accompanying drawing 3 is the cross-sectional schematic at upper mould core cooling pipe place;
Accompanying drawing 4 is upper mould core cross sectional representation;
Accompanying drawing 5 is the schematic diagram of mold insert in lower die structure;
Accompanying drawing 6 is the schematic diagram of lower die structure deadlight.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
As shown in Figures 1 to 4, a kind of upper die structure of using for die casting saggar, comprise upper mould fixed plate 51 and be fixed on the upper mould core 52 of upper mould fixed plate below, described upper mould core cross section is inversion " protruding " word shape, bottom surface is provided with mold cavity, in upper mold cavity, be inlaid with filling block 521, described upper mould core is die hard steel, described filling block is modified 45# steel, upper mould core outer surface is that main pressure is born part, so adopt the higher die hard steel of hardness, the filling block at Er Qi center is also not obvious for the effect of die casting saggar profile, so can adopt modified 45# steel that hardness is lower to reduce cost, in described upper mould core, be provided with cooling water channel 523, described cooling water channel distributes and is " well " word shape on longitudinal cross-section, comprise two cross channel 523a and two longitudinal water channel 523b, described cross channel is the through hole that left and right connects, described longitudinal water channel is blind hole from top to bottom, described upper mould core center is provided with discharge duct 522, described discharge duct runs through filling block from the bottom up successively, upper mold cavity end face, upper mould fixed plate, select as optimizing, described discharge duct bottom is bell, facilitate air to enter discharge duct, realize at utmost exhaust, adopt after the technical program, in upper mould core, inlay filling block, filling block can be lower-cost steel, reduce the cost of material of whole upper mould core, and in upper mould core, be provided with cooling water channel, core surface temperature can be not too high after repeatedly pressing down process to make upper mould core, because excess Temperature can affect the brittleness of core surface, thereby affect the mould life-span itself, finally be provided with discharge duct in the centre of upper mould core, when upper mould core is pressed down, air between upper mould core and counterdie core rod 2 is discharged from discharge duct, can be by air trapping in refractory material, realize the effect that reduces the pore in finished product saggar, along with pore reduces, the firmness of saggar has just increased.
As shown in Figure 4, described cooling water channel is distributed in filling block outside, and the main heat of press compacting refractory material concentrates on the outer surface of upper mould core, and filling block place heat is concentrated less, so cooling water channel need not pass through filling block, has also saved the technique of processing cooling water channel on filling block.
As shown in Figure 3, cooling water channel all adopts punching form to complete, described cooling water channel is at water inlet of the left and right of cross channel Ge Liu and delivery port, all the other outlets are all provided with rubber stopper and stop up, flow graph can be as seen from Figure 3, current enter from the water inlet in the upper left corner, first point of prong shunting, part water continues to turn right along cross channel mobile, another part water longitudinally water channel toward current downflow, while flowing to blind hole bottommost, this part water transfers to flow toward the cross channel of below, while flowing to rightmost, because one of them outlet is plugged, water can converge from delivery port and flow out previously in mobile water in cross channel, delivery port and water inlet can select arbitrarily in two side outlets in cross channel, do not limited to, can connect a water pipe and water pump at delivery port, allow the water flowing out continue to receive on water inlet, can allow so whole water route form a circuit cycle, repeat to flow.
What mated upper mould core below is lower die structure, comprise counterdie housing 1, in the middle of counterdie housing, it is counterdie core rod 2, counterdie core rod top coupling has upper mould core 52, upper mould core 52 is fixed on upper mould fixed plate 51 bottoms, counterdie housing below is provided with backing plate 31, backing plate and press bed face 32 are fixing, described counterdie core rod is float mould core structure, formed with counterdie float mould core 22 by the fixing core rod 21 of counterdie, the fixing core rod of counterdie is close to press bed face, the fixing core rod of counterdie top is provided with core rod inner chamber 211, core rod intracavity bottom is provided with through hole, counterdie float mould core is built in core rod inner chamber, the degree of depth of core rod inner chamber is consistent with the height of counterdie float mould core, when matched moulds, counterdie fixed die core end face and counterdie float mould core end face are in same level, counterdie float mould core bottom is provided with center and takes blame for others 23, take blame for others and extend to press bed face below through the through hole of the fixing core rod of counterdie in center, in the time that upper mould core leaves counterdie core rod, take blame for others counterdie float mould core pushed up to extreme higher position in center, with the blanking of handled easily work, between described counterdie housing inwall and counterdie core rod outer wall, be respectively equipped with 4 facing-wall boards 24, the inwall of counterdie housing is difficult to processing with grinding machine, the general mode that adopts line cutting or machining center milling, the counterdie housing inwall processing by these two kinds of modes is more coarse, if do not established in the situation of wallboard, the degree of roughness of counterdie inwall directly has influence on the surface roughness of the saggar 4 of extrusion, and too coarse inwall also easily causes the demoulding to have some setbacks, well solve this problem by the structure of 4 facing-wall boards, wallboard can be processed with surface grinding machine separately, the surfaces of wall processing is very smooth, after processing, be located at again between counterdie housing inwall and counterdie core rod, 4 facing-wall boards are connected and fixed with mold insert 25 at four edges, adopt this lower die structure, counterdie core rod is relocation mechanism, after each press die casting finishes, counterdie core rod can rise, now the position of counterdie core rod is closer from operative employee, handled easily work is placed into refractory material on the surface of counterdie core rod, that can also disperse is more even simultaneously, and traditional counterdie core rod is deep, if directly mode arrives darker counterdie core rod blanking by hand, first security can not obtain effective guarantee, secondly like this when blanking because the factor such as light is darker, operative employee cannot ensure uniform blanking, the final saggar became uneven that easily causes extrusion, utilize floating type this problem that well solved, when upper mould core is depressed into counterdie core rod, counterdie core rod can and then press down, while being depressed into bottommost, counterdie core rod stops descending, now upper mould core continues descending, be distributed in the most at last the refractory material compaction moulding on counterdie core rod.
In the middle of described counterdie housing and backing plate, be provided with compound plate 33, the outer frame bottom of described wallboard and counterdie is all screwed on compound plate, install compound plate rear wall plate additional and counterdie housing can be fixed on compound plate, if do not establish compound plate, fixed form between wallboard and counterdie housing can only be carried out thread mill drilling in surfaces of wall or counterdie housing side, this has obviously increased difficulty of processing, because the thickness of wallboard own is little, inconvenient thread mill drilling, and thickness is very thick between counterdie housing outer wall and inwall, thread mill drilling is also inconvenient.Described wallboard two sides are provided with raised line, and raised line and draw-in groove are fixed.
As shown in Figure 5 and Figure 6, described mold insert is rectangular cylinder, square-section wherein two diagonal angles is provided with interior concave arc 25, in one of them, concave arc is in order to reduce the difficulty that coordinates between mold insert and counterdie housing inwall, concave arc is to coordinate saggar profile and establish in another, 4 mold inserts are all made same structure, to facilitate mutual replacing, four sides of cylinder are equipped with draw-in groove and are conveniently connected spacing with wallboard, kernel of section is provided with tapped through hole and realizes with compound plate 33 fixing, and, described mold insert and the height of wallboard are higher than the height of counterdie housing, so after design, when upper mould core is depressed into matched moulds, upper mould fixed plate 51 is depressed into the end face of mold insert and wallboard, instead of the end face of counterdie housing, because the general softer steel of material that adopt of counterdie housing, if repeatedly pressed down and can produce distortion by patrix, thereby affect the stroke that presses down of patrix.
The mechanism that lower die structure Zhong takes blame for others at center adopts the form of hydraulic jacking cylinder, this pushing method precision is higher, also can adopt the mechanism of cylinder ejector rod outer cover back-moving spring, this mechanism is a kind of low before in precision, but the more convenient dismounting of this mechanism, is highly suitable for needing often more under the operating mode of mold exchange, to use
Below only just the present invention preferably example be described, but can not be interpreted as it is limitations on claims.The present invention not only limits to and above example, and its concrete structure allows to change, and those skilled in the art can make according to the present invention various changes and distortion, only otherwise depart from spirit of the present invention, all should belong to the defined scope of claims of the present invention.

Claims (5)

1. a upper die structure of using for die casting saggar, comprise upper mould fixed plate (51) and be fixed on the upper mould core (52) of upper mould fixed plate below, it is characterized in that: described upper mould core cross section is inversion " protruding " word shape, bottom surface is provided with mold cavity, in upper mold cavity, be inlaid with filling block (521), in described upper mould core, be provided with cooling water channel (523), described cooling water channel distributes and is " well " word shape on longitudinal cross-section, comprise two cross channels (523a) and two longitudinal water channels (523b), described cross channel is the through hole that left and right connects, described longitudinal water channel is blind hole from top to bottom, described upper mould core center is provided with discharge duct (522), described discharge duct runs through filling block from the bottom up successively, upper mold cavity end face, upper mould fixed plate.
2. a kind of upper die structure of using for die casting saggar according to claim 1, is characterized in that: described upper mould core is die hard steel body, and described filling block is modified 45# steel body.
3. a kind of upper die structure of using for die casting saggar according to claim 2, is characterized in that: described cooling water channel is distributed in filling block outside.
4. a kind of upper die structure of using for die casting saggar according to claim 3, is characterized in that: described cooling water channel is at water inlet of the left and right of cross channel Ge Liu and delivery port, and all the other outlets are all provided with rubber stopper and stop up.
5. a kind of upper die structure of using for die casting saggar according to claim 4, is characterized in that: shown in discharge duct bottom be bell.
CN201410365849.9A 2014-07-29 2014-07-29 Upper die structure used for pressure casting of saggars Pending CN104149178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410365849.9A CN104149178A (en) 2014-07-29 2014-07-29 Upper die structure used for pressure casting of saggars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410365849.9A CN104149178A (en) 2014-07-29 2014-07-29 Upper die structure used for pressure casting of saggars

Publications (1)

Publication Number Publication Date
CN104149178A true CN104149178A (en) 2014-11-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410365849.9A Pending CN104149178A (en) 2014-07-29 2014-07-29 Upper die structure used for pressure casting of saggars

Country Status (1)

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CN (1) CN104149178A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535981A (en) * 1994-11-15 1996-07-16 Goris; Richard L. Adjustable casting mold
JPH09308955A (en) * 1996-05-21 1997-12-02 Ahresty Corp Cooling structure for metallic mold
CN2603716Y (en) * 2003-02-26 2004-02-18 华中科技大学 Die forging forming mould of metal extrusion pressing
CN203357646U (en) * 2013-07-02 2013-12-25 周文鹏 Mobile ejector pin type air exhaust die
CN103817875A (en) * 2012-11-17 2014-05-28 安徽蓝德集团股份有限公司 Die-casting mold with exhaust vent
CN203973723U (en) * 2014-07-29 2014-12-03 浙江立鑫高温耐火材料有限公司 A kind of upper die structure of using for die casting saggar

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535981A (en) * 1994-11-15 1996-07-16 Goris; Richard L. Adjustable casting mold
JPH09308955A (en) * 1996-05-21 1997-12-02 Ahresty Corp Cooling structure for metallic mold
CN2603716Y (en) * 2003-02-26 2004-02-18 华中科技大学 Die forging forming mould of metal extrusion pressing
CN103817875A (en) * 2012-11-17 2014-05-28 安徽蓝德集团股份有限公司 Die-casting mold with exhaust vent
CN203357646U (en) * 2013-07-02 2013-12-25 周文鹏 Mobile ejector pin type air exhaust die
CN203973723U (en) * 2014-07-29 2014-12-03 浙江立鑫高温耐火材料有限公司 A kind of upper die structure of using for die casting saggar

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Effective date of abandoning: 20170201

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