CN102259411A - Molds capable of overcoming molding defects of simplicity in shrinkage, difficulty in cement saturation and air exhaust and the like - Google Patents
Molds capable of overcoming molding defects of simplicity in shrinkage, difficulty in cement saturation and air exhaust and the like Download PDFInfo
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- CN102259411A CN102259411A CN201110171469A CN201110171469A CN102259411A CN 102259411 A CN102259411 A CN 102259411A CN 201110171469 A CN201110171469 A CN 201110171469A CN 201110171469 A CN201110171469 A CN 201110171469A CN 102259411 A CN102259411 A CN 102259411A
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Abstract
The invention discloses molds capable of overcoming molding defects of simplicity in shrinkage, difficulty in cement saturation and air exhaust and the like. In the molds, a first mold is used for supplementing cement at a local thick cement position in an injection molding machine mold with a mold-closing ejection signal or a front mold core-pulling signal, and a cement supplementing mechanism which is used for supplementing the cement to the thick cement position of a product is arranged in a movable mold core; a second mold is used for forming a local thin cement position in the injection molding machine mold with the mold-closing ejection signal or the front mold core-pulling signal, and a forming mechanism which is used for forming the thin cement position of the product is arranged in the movable mold core; and a third mold is used for a mechanism for automatically cutting the overflowed cement of a material overflowing hole in the injection molding machine mold with the mold-closing ejection signal or the front mold core-pulling signal, and the mechanism which is used for automatically cutting the overflowed cement of the material overflowing hole in the mold is also arranged in the movable mold core.
Description
Technical field
The present invention relates to the plastic mould of common injection machine, be meant that mainly the band mold closing ejects the loose core injection machine of signal of signal or band front mould and solves the local thick glue of plasthetics position and easily shrink; The difficult full glue in local thin glue position; The folder waterline is thick; The exhaust difficulty; The mould of forming defects such as easy cold glue.
Background technology
Often have following forming defect problem during the common injection machine injection mo(u)lding of tradition: 1. shrink----refers to goods and cause that after injection is finished cooling shrinks uneven because local glue is too thick: the position heart portion heat radiation that glue is thick also will continue to shrink slowly after its surface and other thin glue position cooling curing moulding, causes at product surface and forms the phenomenon that a pit influences products appearance.2. because certain local location glue of goods thick relatively thin (being called for short thin glue position), and walk glue difficulty (easy starved during moulding) when causing moulding, be stranded problems such as gas and weld bond.Weld bond----refers to goods because local glue is too thick or approach very much when injection mo(u)lding, the good fusion temp that the preceding peak temperature of two strands or multiply solation is lower than this sizing material rolls off the production line, thereby makes it can not fine fusion and form a visible closing line at product surface and influence products appearance.Weld bond has another name called the folder waterline.3. be stranded gas----and refer to that the solation of goods hot melt when injection mo(u)lding begins to flow to goods everywhere from glue-feeder, but in the last position that arrives of solation or during certain local thin glue position, the gas in the mold cavity can't be discharged and be overstock or cold glue has been arranged during this position of the distant arrival of materials flow flow process and influence product surface outward appearance phenomenon.For addressing this problem, add a groove at this terminal non-outward appearance place and be communicated with goods, gas or cold glue are introduced in this groove, and this groove is the flash cave.For solving the difficult problem of above 3 kinds of forming defects, traditional way is: for solving thick shrink of local glue and thin glue position, normally strengthen method solutions such as injection mo(u)lding pressure 1..Yet strengthening injection pressure usually still can not thoroughly address this problem, perhaps these two problems have solved, but cause goods die joint place to criticize cutting edge of a knife or a sword (burr), die deformation owing to injection pressure strengthens, significantly reduce die life, and new problems such as injection machine energy consumption increasing have been come out again.2. be stranded gas or cold glue for solving, add an air discharge duct or flash cave at tired gas place, air discharge duct can't solve cold glue and some position can't add air discharge duct, solves and can only add the flash cave.But must post processing separate it owing to link to each other with goods in the flash cave, has increased back processing cost and influenced product property.
Disclosed by retrieval document finds no on plastic mould and uses and present technique oil cylinder and the identical technology of structural principle.
Summary of the invention
The purpose of this invention is to provide and a kind ofly eject the local feeding in the injection machine mould of signal of loosing core of signal or band front mould with mold closing, the local thin glue position of easy-formation and easy exhaust or cold glue mould, by a structure is set the glue piezometric is gone into goods in mould, can realize that secondary is carried out in thick glue position, part mends glue, the thin glue position of moulding, any position of mould adds the automatic excessive glue in flash cave that cuts off in flash cave and the mould behind goods.Solve the shrink that said products exists, insatiable hunger glue, be stranded moulding difficult problems such as gas, cold glue, folder waterline.
Realize that one of technical scheme of the present invention is: this mould is suitable for the local thick glue of goods position and mends glue, and it comprises quiet die holder, quiet template, dynamic model seat, moving platen, mould pin, injection machine top rod, wherein:
Be provided with quiet template below the described quiet die holder, in quiet template, be provided with quiet mould core rod, in quiet mould core rod, be provided with the goods die cavity;
Be provided with the mould pin above the described dynamic model seat, on the mould pin, be provided with moving platen, in moving platen, be provided with the dynamic model core rod, between the mould pin, also be provided with goods thimble top board and goods thimble fixed head from the bottom to top successively, on goods thimble fixed head, be provided with chute, the goods thimble passes goods thimble fixed head and dynamic model core rod apical grafting in the goods bottom surface, the thimble cup head of goods thimble lower end slides in chute, this goods thimble cup head contacts with the support column cup head of support column, this support column lower end and dynamic model seated connection touch, on goods thimble fixed head, also be provided with and be used for the push back pin that jack-up is separated quiet template, on push back pin, be set with retracting spring, between goods thimble top board and dynamic model seat, be provided with the rubbish nail, on the dynamic model seat, also be provided with electric protection switch, in the KO hole of dynamic model seat, be provided with the injection machine top rod of pushing tow goods thimble top board, or between mould pin and quiet template, be provided with oil cylinder outside the mould (not drawing among the figure), dynamic model seat, mould pin and moving platen are fixed together by screw;
In the dynamic model core rod, also be provided with the benefit gluing mechanism that is used for mending glue to the thick glue of goods position.
This technical scheme also comprises:
Described benefit gluing mechanism is included in to be provided with in the dynamic model core rod mends glue hole and moulding bar, this moulding bar lower end is provided with moulding bar cup head, the moulding bar passes the benefit glue hole that goods thimble fixed head enters the dynamic model core rod, this benefit glue hole is communicated with described goods die cavity, mend between glue masthead end and the goods bottom surface and leave the gap, be provided with benefit glue in this gap, this moulding bar pushed the goods die cavity and realizes mending glue to thick glue position by mending glue, and this moulding bar is fixed in the goods thimble fixed head by moulding bar cup head.
The thick glue position of the corresponding goods in described benefit glue hole.
Realize that two of technical scheme of the present invention is: this mould is suitable for the local thin glue position of goods, and it comprises quiet die holder, quiet template, dynamic model seat, moving platen, mould pin, injection machine top rod, wherein:
Be provided with quiet template below the described quiet die holder, in quiet template, be provided with quiet mould core rod, in quiet mould core rod, be provided with the goods die cavity;
Be provided with the mould pin above the described dynamic model seat, on the mould pin, be provided with moving platen, in moving platen, be provided with the dynamic model core rod, between the mould pin, also be provided with goods thimble top board and goods thimble fixed head from the bottom to top successively, on goods thimble fixed head, be provided with chute, the goods thimble passes goods thimble fixed head and dynamic model core rod apical grafting in the goods bottom surface, the thimble cup head of goods thimble lower end slides in chute, this thimble cup head contacts with the support column cup head of support column, this support column lower end and dynamic model seated connection touch, on goods thimble fixed head, also be provided with and be used for the push back pin that jack-up is separated quiet template, on push back pin, be set with retracting spring, between goods thimble top board 18 and dynamic model seat, be provided with the rubbish nail, on the dynamic model seat, also be provided with electric protection switch, in the KO hole of dynamic model seat, be provided with the injection machine top rod of pushing tow goods thimble top board, or between mould pin and quiet template, be provided with oil cylinder outside the mould (not drawing among the figure), dynamic model seat, mould pin and moving platen are fixed together by screw;
In the dynamic model core rod, also be provided with the shaping mechanism that is used for the thin glue position of moulded products.
This technical scheme also comprises:
Described shaping mechanism is included in and is provided with moulding bar via hole and moulding bar in the dynamic model core rod, this one-tenth moulding bar lower end is provided with moulding bar cup head, the moulding bar passes the moulding bar via hole that goods thimble fixed head enters the dynamic model core rod, this moulding bar via hole is communicated with described goods die cavity, leave the gap between moulding masthead end and the goods bottom surface, be provided with the glue amount that is pressed in this gap, this moulding masthead goes out a segment distance, make moulding masthead face flush the product molding face and realize that moulding approaches the glue position, to be pressed into the glue amount simultaneously and push the goods die cavity, this moulding bar is fixed in the goods thimble fixed head by moulding bar cup head.
Described moulding bar is crossed the thin glue position of corresponding goods.
Realize that three of technical scheme of the present invention is: this mould is suitable for the interior shear forming automatically of mould and walks the goods flash cave that the exhaust of buffings end adds with row's cold glue, comprises quiet die holder, quiet template, dynamic model seat, moving platen, mould pin, injection machine top rod, wherein:
Be provided with quiet template below the described quiet die holder, in quiet template, be provided with quiet mould core rod, in quiet mould core rod, be provided with the goods die cavity;
Be provided with the mould pin above the described dynamic model seat, on the mould pin, be provided with moving platen, in moving platen, be provided with the dynamic model core rod, between the mould pin, also be provided with goods thimble top board and goods thimble fixed head from the bottom to top successively, on goods thimble fixed head, be provided with chute, the goods thimble passes goods thimble fixed head and dynamic model core rod apical grafting in the goods bottom surface, the thimble cup head of goods thimble lower end slides in chute, this thimble cup head contacts with the support column cup head of support column, this support column lower end and dynamic model seated connection touch, on goods thimble fixed head, also be provided with and be used for the push back pin that jack-up is separated quiet template, on push back pin, be set with retracting spring, between goods thimble top board and dynamic model seat, be provided with the rubbish nail, on the dynamic model seat, also be provided with electric protection switch, in the KO hole of dynamic model seat, be provided with the injection machine top rod of pushing tow thimble top board, or between mould pin and quiet template, be provided with oil cylinder outside the mould (not drawing among the figure), dynamic model seat, mould pin and moving platen are fixed together by screw;
In the dynamic model core rod, also be provided with the mechanism that is used for automatic mold inscribe flash cave.
This technical scheme also comprises:
Described automatic mold inscribe flash cave mechanism is included in and is provided with the flash cave in the dynamic model core rod, overflow glue thimble, moulding bar via hole and moulding bar, wherein:
Flash cave and described goods cavity bottom overlapping edges, goods are to the exhaust of flash cave and row's cold glue, and the flash cave also is communicated with the cutter via hole;
Moulding bar lower end is provided with moulding bar cup head, this moulding bar passes the cutter via hole that goods thimble fixed head enters the dynamic model core rod, this cutter via hole is communicated with described goods die cavity, leave the gap between moulding masthead end and the goods bottom surface, be provided with the glue amount that is pressed in this gap, the moulding bar is pressed into the glue amount with this and pushes the goods die cavity, cuts off the excessive glue in the flash cave that is connected with goods simultaneously, and this moulding bar is fixed in the goods thimble fixed head by moulding bar cup head;
Excessive glue thimble lower end is provided with the glue thimble cup head that overflows, the glue thimble that should overflow passes goods thimble fixed head and dynamic model core rod apical grafting in excessive glue bottom surface, the excessive glue thimble cup head of excessive glue thimble lower end slides in chute, the glue thimble cup head that should overflow contacts with the support column cup head of support column, and this support column lower end and dynamic model seated connection touch.
The beneficial effect that the present invention has: 1, improve the shrink problem at place, thick glue position and the weld bond problem at place, this thick glue position etc. greatly; 2, improve insatiable hunger glue problem and the problems of locating thin glue position such as clamp that should approach place, glue position and tired gas problem greatly; 3, improve problems such as being stranded gas and terminal materials flow forward cold glue greatly.
Description of drawings
Fig. 1 is one of the present invention's an overall structure schematic diagram, and the preceding state of glue is mended in expression.
Fig. 2 is a schematic diagram behind the benefit glue of Fig. 1.
Fig. 3 is the present invention's two an overall structure schematic diagram, state before the local thin glue position moulding of expression.
Fig. 4 is a schematic diagram after the thin glue position moulding in the part of Fig. 3.
Fig. 5 is the present invention's three an overall structure schematic diagram, and state before the glue that overflows is cut in expression.
Fig. 6 is a schematic diagram behind the excessive glue of the cut-out of Fig. 5.
Fig. 7 is the quiet mould core rod schematic diagram of Fig. 1.
Fig. 8 is the dynamic model core rod schematic diagram of Fig. 1.
Fig. 9 is the quiet mould core rod schematic diagram of Fig. 3.
Figure 10 is the dynamic model core rod schematic diagram of Fig. 3.
Figure 11 is the quiet mould core rod schematic diagram of Fig. 5.
Figure 12 is the dynamic model core rod schematic diagram of Fig. 5.
Among the figure: 1 electric protection switch; 2 goods thimble fixed heads; 3 screws; 4 goods thimbles; 41 goods thimble cup heads; 5 dynamic model core rods; 51 via holes; 52 are pressed into the glue amount; 53 goods die cavities; 54 goods centre holes; 55 flash caves; 56 thick glue positions; 57 thin glue positions; 6 quiet templates; 7 goods; 8 moulding bars; 81 moulding bar heads; 9 excessive glue thimbles; 91 excessive glue thimble cup heads; 10 excessive glue; 11 quiet die holders; 12 support columns; 121 support column cup heads; 13 quiet mould core rods; 14 moving platens; 15 retracting springs; 16 push back pins; 17 mould pin; 18 goods thimble top boards; 19 dynamic model seats; 20 rubbish nail; 21 chutes; 22 injection machine top rods; 23 insert.
T1-is pressed into the glue amount.
T2-is pressed into the glue amount.
T3-is pressed into the glue amount.
The T4-goods thimble amount of ejecting.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples:
This mould (as shown in Figure 1, mending the preceding state of glue) is made up of quiet die holder 11, quiet template 6, dynamic model seat 19, moving platen 14, mould pin 17, injection machine top rod 22 and thick glue position benefit gluing mechanism etc.
Be provided with quiet template 6 below the quiet die holder 11, in quiet template 6, be provided with quiet mould core rod 13, in quiet mould core rod 13, be provided with goods die cavity 53.
Be provided with mould pin 17 above the dynamic model seat 19; on mould pin 17, be provided with moving platen 14; in moving platen 14, be provided with dynamic model core rod 5; between mould pin 17, also be provided with goods thimble top board 18 and goods thimble fixed head 2 from the bottom to top successively; on goods thimble fixed head 2, be provided with chute 21; goods thimble 4 passes goods thimble fixed head 2 and dynamic model core rod 5 apical graftings in goods 7 bottom surfaces; the thimble cup of goods thimble 4 lower ends 41 is in 21 li slips of chute; the support column cup of goods thimble cup 41 and support column 12 121 contacts; support column 12 lower ends contact with dynamic model seat 19; on goods thimble fixed head 2, also be provided with and be used for the push back pin 16 that jack-up is separated quiet template 6; on push back pin 16, be set with retracting spring 15; between goods thimble top board 18 and dynamic model seat 19, be provided with rubbish nail 20; on dynamic model seat 19, also be provided with electric protection switch 1; in the KO hole of dynamic model seat 19, be provided with the injection machine top rod 22 of pushing tow goods thimble top board 18; or between mould pin 17 and quiet template 6, be provided with oil cylinder outside the mould, dynamic model seat 11; mould pin 17 and moving platen 14 are fixed together by screw 3.
The benefit gluing mechanism is included in and is provided with moulding bar via hole 51 and moulding bar 8 in the dynamic model core rod 5, moulding bar 8 lower ends are provided with moulding bar cup 81, moulding bar 8 passes the moulding bar via hole 51 that goods thimble fixed head 2 enters dynamic model core rod 5, this moulding bar via hole 51 is communicated with described goods die cavity 53, mend between glue masthead end and the goods bottom surface and leave the gap, be provided with the glue amount 52 that is pressed in this gap, moulding bar 8 pushed goods die cavity 53 and realizes mending glue to thick glue position 56 by mending glue 52, moulding bar 8 is fixed in the goods thimble fixed head 2 the thick glue position 56 of moulding bar via hole 51 corresponding goods by moulding bar cup 81.
Operation principle:
Loose core on the injection machine of signal there being mold closing to eject signal or band front mould, by the benefit gluing mechanism is set on mould, utilize in the injection process finish to pressurize before, eject the power that provides by injection machine top rod (perhaps mould adds oil cylinder) mold closing, utilize thermoplastic fine mobile in molten condition, injection is pressed into the glue amount and mends glue by force at place, thick glue position, reach pressurize once more and make place, thick glue position, this part good appearance effect of the easy easy clamp that shrinks of improvement greatly, and the dwell pressure of injection machine is littler.
(referring to Fig. 1), during the injection pressurize, be located at the local thick glue of goods position office down at this moment at rollback apart from the T1 state, the feeding that has T1 thickness with product surface is pressed into the glue amount.
(referring to Fig. 2), before cooling was moved after the injection pressurize was finished, mould is also under closure state, office ejects a segment distance T1 under thimble top board induced effect, one section hot glue feeding of machine-operated end face is pressed into the glue piezometric goes into this local thick glue position of goods and compensate thick glue position heart portion and form hollow because of after-contraction, balance is shunk and goods is not pulled into the seal that shrinks.
This mould (as shown in Figure 3, mending the preceding state of glue) is made up of quiet die holder 11, quiet template 6, dynamic model seat 19, moving platen 14, mould pin 17, injection machine top rod 22 and thin glue station forming arrangement etc.
Be provided with quiet template 6 below the quiet die holder 11, in quiet template 6, be provided with quiet mould core rod 13, in quiet mould core rod 13, be provided with goods die cavity 53.
Be provided with mould pin 17 above the dynamic model seat 19, on mould pin 17, be provided with moving platen 14, in moving platen 14, be provided with dynamic model core rod 5, between mould pin 17, also be provided with goods thimble top board 18 and goods thimble fixed head 2 from the bottom to top successively, on goods thimble fixed head 2, be provided with chute 21, goods thimble 4 passes goods thimble fixed head 2 and dynamic model core rod 5 apical graftings in goods 7 bottom surfaces, the thimble cup of goods thimble 4 lower ends 41 is in 21 li slips of chute, the support column cup of thimble cup 41 and support column 12 121 contacts, support column 12 lower ends contact with dynamic model seat 19, on goods thimble fixed head 2, also be provided with and be used for the push back pin 16 that jack-up is separated quiet template 6, on push back pin 16, be set with retracting spring 15, between goods thimble top board 18 and dynamic model seat 19, be provided with rubbish nail 20, on dynamic model seat 19, also be provided with electric protection switch 1, in the KO hole of dynamic model seat 19, be provided with the injection machine top rod 22 of pushing tow goods thimble top board 18, or between mould pin 17 and quiet template 6, be provided with oil cylinder outside the mould, dynamic model seat 19, mould pin 17 and moving platen 14 are fixed together by screw 3;
Shaping mechanism is included in and is provided with moulding bar via hole 51 and moulding bar 8 in the dynamic model core rod 5, moulding bar 8 lower ends are provided with moulding bar cup 81, moulding bar 8 passes the moulding bar via hole 51 that goods thimble fixed head 2 enters dynamic model core rod 5, moulding bar via hole 51 is communicated with described goods die cavity 53, leave the gap between moulding bar 8 tops and goods 7 bottom surfaces, be provided with the glue amount 52 that is pressed in the gap, this moulding bar 8 ejects a segment distance, make moulding bar 8 end faces flush goods 7 forming surface and realize that moulding approaches glue position 57, to be pressed into glue amount 52 simultaneously and push goods die cavity 53, moulding bar 8 is fixed in the goods thimble fixed head 2 the thin glue position 57 of moulding bar via hole 51 corresponding goods by moulding bar cup 81.
Operation principle:
Loose core on the injection machine of signal there being mold closing to eject signal or band front mould, by shaping mechanism is set on mould, utilize in the injection process finish to pressurize before, eject the power that provides by injection machine top rod (perhaps mould adds oil cylinder) mold closing, thin glue position is done thickly earlier in the part, utilizes thermoplastic to subtract glue by force fine the flowing of molten condition again, and reaching moulding should thin glue position, part, and improve the good appearance effect that difficult full glue easily is stranded the easy clamp of gas greatly, and the injection pressure of injection machine is littler.
(referring to Fig. 3), during the injection pressurize, be located at the local thin glue position of goods office down at this moment at rollback apart from the T2 state, there is the glue amount that is pressed into of T2 thickness with product surface, office's top shape should approach dynamic model side glue position, glue position shape unanimity (is a sphere as legend) with goods, having one under the thin glue position of goods this moment, to be pressed into glue amount glue thick, thicker easy moulding.
(referring to Fig. 4), before the cooling action, mould was also under closure state after the injection pressurize was finished, office ejects a segment distance T2 under thimble top board induced effect, the glue piezometric that is pressed into of hot melt state is gone in the goods place, the thin glue position of the concordant goods of machine-operated end face dynamic model side, thereby the thin glue position of moulding.
This mould (as shown in Figure 5, mending the preceding state of glue) is made up of quiet die holder 11, quiet template 6, dynamic model seat 19, moving platen 14, mould pin 17, injection machine top rod 22 and automatic mold inscribe flash cave mechanism etc.
Be provided with quiet template 6 below the quiet die holder 11, in quiet template 6, be provided with quiet mould core rod 13, in quiet mould core rod 13, be provided with goods die cavity 53.
Be provided with mould pin 17 above the dynamic model seat 19; on mould pin 17, be provided with moving platen 14; in moving platen 14, be provided with dynamic model core rod 5; between mould pin 17, also be provided with goods thimble top board 18 and goods thimble fixed head 2 from the bottom to top successively; on goods thimble fixed head 2, be provided with chute 21; goods thimble 4 passes goods thimble fixed head 2 and dynamic model core rod 5 apical graftings in goods 7 bottom surfaces; the thimble cup of goods thimble 4 lower ends 41 is in 21 li slips of chute; the support column cup of thimble cup 41 and support column 12 121 contacts; support column 12 lower ends contact with dynamic model seat 19; on goods thimble fixed head 2, also be provided with and be used for the push back pin 16 that jack-up is separated quiet template 6; on push back pin 16, be set with retracting spring 15; between goods thimble top board 18 and dynamic model seat 19, be provided with rubbish nail 20; on dynamic model seat 19, also be provided with electric protection switch 1; in the KO hole of dynamic model seat 19, be provided with the injection machine top rod 22 of pushing tow thimble top board; or between mould pin 17 and quiet template 6, be provided with oil cylinder outside the mould, dynamic model seat 19; mould pin 17 and moving platen 14 are fixed together by screw 3.
Automatic mold inscribe flash cave mechanism is included in and is provided with flash cave 55 in the dynamic model core rod 5, glue thimble 9, moulding bar via hole 51 and moulding bar 8 overflow: flash cave 55 and described goods die cavity 53 bottom margins overlap joint, goods 7 are to 55 exhausts of flash cave and row's cold glue, and flash cave 55 also is communicated with moulding bar via hole 51; Moulding bar 8 lower ends are provided with moulding bar cup 81, this moulding bar 8 passes the moulding bar via hole 51 that goods thimble fixed head 18 enters dynamic model core rod 5, this moulding bar via hole 51 is communicated with described goods die cavity 53, leave the gap between moulding bar 8 tops and goods 7 bottom surfaces, be provided with the glue amount 52 that is pressed in this gap, moulding bar 8 pushes goods die cavity 53 by this being pressed into glue amount 52, cut off simultaneously with flash cave that goods 7 are connected in excessive glue 10, this moulding bar 8 is fixed in the goods thimble fixed head 2 by moulding bar cup 81; Glue thimble 9 lower ends of overflowing are provided with the glue thimble cup 91 that overflows, the glue thimble 9 that should overflow passes goods thimble fixed head 2 and dynamic model core rod 5 apical graftings in excessive glue 10 bottom surfaces, overflow the excessive glue thimble cup 91 of glue thimble 9 lower ends in 21 li slips of chute, the support column cup 121 of glue thimble cup 91 and support column 12 of should overflowing contacts, and these support column 12 lower ends contact with dynamic model seat 19.
Operation principle:
Loose core on the injection machine of signal there being mold closing to eject signal or band front mould, by automatic mold inscribe flash cave mechanism is set on mould, utilize in the injection process finish to pressurize before, eject the power that provides by injection machine top rod (perhaps mould adds oil cylinder) mold closing, inject by force and be pressed into the glue amount in goods, divide in the mould simultaneously and cut off the connection of goods with the excessive glue in the flash cave, reach and at any terminal position of goods dynamic model side the flash cave is set and improves problems such as being stranded gas and cold glue greatly, and the injection pressure of injection machine is littler.
(referring to Fig. 5), during the injection pressurize, be located at office this moment under the flash at rollback apart from the T3 state, have the glue amount that is pressed into of T3 thickness with product surface.
(referring to Fig. 6), before cooling was moved after the injection pressurize was finished, mould is also under closure state, office ejects a segment distance T3 under thimble top board induced effect, the glue piezometric that is pressed into of hot melt state is gone in the goods, the concordant goods dynamic model of machine-operated end face side, thus disconnect being connected of excessive glue in goods and the flash cave, by ejection system goods are ejected with excessive glue again after the die sinking, solve because of being stranded the flash cave mould inscribe function that problems such as air cooling glue add thereby reach.
Claims (8)
1. one kind ejects signal or band front mould with mold closing and looses core and thick glue position, part is mended in the injection machine mould of signal the mould of glue, comprise quiet die holder, quiet template, dynamic model seat, moving platen, mould pin, injection machine top rod, it is characterized in that comprising local thick glue position benefit glue, wherein: be provided with quiet template below the described quiet die holder, in quiet template, be provided with quiet mould core rod, in quiet mould core rod, be provided with the goods die cavity; Be provided with the mould pin above the described dynamic model seat, on the mould pin, be provided with moving platen, in moving platen, be provided with the dynamic model core rod, between the mould pin, also be provided with goods thimble top board and goods thimble fixed head from the bottom to top successively, on goods thimble fixed head, be provided with chute, the goods thimble passes goods thimble fixed head and dynamic model core rod apical grafting in the goods bottom surface, the thimble cup head of goods thimble lower end slides in chute, this goods thimble cup head contacts with the support column cup head of support column, this support column lower end and dynamic model seated connection touch, on goods thimble fixed head, also be provided with and be used for the push back pin that jack-up is separated quiet template, on push back pin, be set with retracting spring, between goods thimble top board and dynamic model seat, be provided with the rubbish nail, on the dynamic model seat, also be provided with electric protection switch, in the KO hole of dynamic model seat, be provided with the injection machine top rod of pushing tow goods thimble top board, or between mould pin and quiet template, be provided with oil cylinder outside the mould, the dynamic model seat, mould pin and moving platen are fixed together by screw; In the dynamic model core rod, also be provided with the benefit gluing mechanism that is used for mending glue to the thick glue of goods position.
2. band mold closing as claimed in claim 1 ejects signal or band front mould and looses core and thick glue position, part is mended in the injection machine mould of signal the mould of glue, it is characterized in that described benefit gluing mechanism is included in is provided with moulding bar via hole and moulding bar in the dynamic model core rod, this moulding bar lower end is provided with moulding bar cup head, the moulding bar passes the moulding bar via hole that goods thimble fixed head enters the dynamic model core rod, this moulding bar via hole is communicated with described goods die cavity, leave the gap between moulding masthead end and the goods bottom surface, be provided with benefit glue in this gap, this moulding bar pushed the goods die cavity and realizes mending glue to thick glue position by mending glue, and this moulding bar is fixed in the goods thimble fixed head by moulding bar cup head.
3. band mold closing as claimed in claim 2 ejects signal or band front mould and looses core and thick glue position, part is mended in the injection machine mould of signal the mould of glue, it is characterized in that the thick glue position of the corresponding goods of described moulding bar via hole.
4. a band mold closing ejects signal or the band front mould thin glue position mould in the in-molded part of signal injection machine of loosing core, comprise quiet die holder, quiet template, dynamic model seat, moving platen, mould pin, injection machine top rod, it is characterized in that comprising thin glue position moulding, wherein: be provided with quiet template below the described quiet die holder, in quiet template, be provided with quiet mould core rod, in quiet mould core rod, be provided with the goods die cavity; Be provided with the mould pin above the described dynamic model seat, on the mould pin, be provided with moving platen, in moving platen, be provided with the dynamic model core rod, between the mould pin, also be provided with goods thimble top board and goods thimble fixed head from the bottom to top successively, on goods thimble fixed head, be provided with chute, the goods thimble passes goods thimble fixed head and dynamic model core rod apical grafting in the goods bottom surface, the thimble cup head of goods thimble lower end slides in chute, this thimble cup head contacts with the support column cup head of support column, this support column lower end and dynamic model seated connection touch, on goods thimble fixed head, also be provided with and be used for the push back pin that jack-up is separated quiet template, on push back pin, be set with retracting spring, between goods thimble top board and dynamic model seat, be provided with the rubbish nail, on the dynamic model seat, also be provided with electric protection switch, in the KO hole of dynamic model seat, be provided with the injection machine top rod of pushing tow goods thimble top board, or between mould pin and quiet template, be provided with oil cylinder outside the mould, the dynamic model seat, mould pin and moving platen are fixed together by screw; In the dynamic model core rod, also be provided with the shaping mechanism that is used for to the thin glue position moulding of goods.
5. band mold closing as claimed in claim 4 ejects signal or the band front mould thin glue position mould in the in-molded part of signal injection machine of loosing core, it is characterized in that described shaping mechanism is included in is provided with moulding bar via hole and moulding bar in the dynamic model core rod, this moulding bar lower end is provided with moulding bar cup head, the moulding bar passes the moulding bar via hole that goods thimble fixed head enters the dynamic model core rod, this moulding bar via hole is communicated with described goods die cavity, leave the gap between moulding masthead end and the goods bottom surface, be provided with the glue amount that is pressed in this gap, this moulding masthead goes out a segment distance, make moulding masthead face flush the product molding face and realize that moulding approaches the glue position, to be pressed into the glue amount simultaneously and push the goods die cavity, this moulding bar is fixed in the goods thimble fixed head by moulding bar cup head.
6. band mold closing as claimed in claim 5 ejects signal or the band front mould thin glue position mould in the in-molded part of signal injection machine of loosing core, and it is characterized in that the thin glue position of the corresponding goods of described moulding bar via hole.
7. a band mold closing ejects signal or band front mould and looses core and cut the flash cave gluing mechanism mould that overflows in the signal injection machine mould automatically, comprise quiet die holder, quiet template, dynamic model seat, moving platen, mould pin, injection machine top rod, it is characterized in that comprising in the excessive rubber moulding in flash cave and cut automatically, wherein: be provided with quiet template below the described quiet die holder, in quiet template, be provided with quiet mould core rod, in quiet mould core rod, be provided with the goods die cavity; Be provided with the mould pin above the described dynamic model seat, on the mould pin, be provided with moving platen, in moving platen, be provided with the dynamic model core rod, between the mould pin, also be provided with goods thimble top board and goods thimble fixed head from the bottom to top successively, on goods thimble fixed head, be provided with chute, the goods thimble passes goods thimble fixed head and dynamic model core rod apical grafting in the goods bottom surface, the thimble cup head of goods thimble lower end slides in chute, this thimble cup head contacts with the support column cup head of support column, this support column lower end and dynamic model seated connection touch, on goods thimble fixed head, also be provided with and be used for the push back pin that jack-up is separated quiet template, on push back pin, be set with retracting spring, between goods thimble top board and dynamic model seat, be provided with the rubbish nail, on the dynamic model seat, also be provided with electric protection switch, in the KO hole of dynamic model seat, be provided with the injection machine top rod of pushing tow thimble top board, or between mould pin and quiet template, be provided with oil cylinder outside the mould, the dynamic model seat, mould pin and moving platen are fixed together by screw; In the dynamic model core rod, also be provided with the mechanism that is used for cutting automatically in the mould the excessive glue in flash cave.
8. band mold closing as claimed in claim 7 ejects signal or band front mould and looses core and cut the overflow mould of glue of flash cave in the signal injection machine mould automatically, it is characterized in that cutting automatically in the described mould flash cave overflow the mechanism of glue be included in be provided with the flash cave in the dynamic model core rod, the glue thimble that overflows, the moulding bar is crossed and the moulding bar, wherein: flash cave and described goods cavity bottom overlapping edges, goods are to the exhaust of flash cave and row's cold glue, and the flash cave also is communicated with moulding bar via hole; Moulding bar lower end is provided with moulding bar cup head, this moulding bar passes the moulding bar via hole that goods thimble fixed head enters the dynamic model core rod, this moulding bar via hole is communicated with described goods die cavity, leave the gap between moulding masthead end and the goods bottom surface, be provided with the glue amount that is pressed in this gap, mend the glue bar and push the goods die cavity by this being pressed into the glue amount, cut off the excessive glue in the flash cave that is connected with goods simultaneously, this moulding bar is fixed in the goods thimble fixed head by moulding bar cup head; Excessive glue thimble lower end is provided with the glue thimble cup head that overflows, the glue thimble that should overflow passes goods thimble fixed head and dynamic model core rod apical grafting in excessive glue bottom surface, the excessive glue thimble cup head of excessive glue thimble lower end slides in chute, the glue thimble cup head that should overflow contacts with the support column cup head of support column, and this support column lower end and dynamic model seated connection touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110171469.8A CN102259411B (en) | 2011-06-24 | 2011-06-24 | Molds capable of overcoming molding defects of simplicity in shrinkage, difficulty in cement saturation and air exhaust and like |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110171469.8A CN102259411B (en) | 2011-06-24 | 2011-06-24 | Molds capable of overcoming molding defects of simplicity in shrinkage, difficulty in cement saturation and air exhaust and like |
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| CN102259411A true CN102259411A (en) | 2011-11-30 |
| CN102259411B CN102259411B (en) | 2014-04-09 |
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| CN201110171469.8A Expired - Fee Related CN102259411B (en) | 2011-06-24 | 2011-06-24 | Molds capable of overcoming molding defects of simplicity in shrinkage, difficulty in cement saturation and air exhaust and like |
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| CN103381629A (en) * | 2013-07-18 | 2013-11-06 | 中山市利群精密实业有限公司 | Crater structure for plastic mould |
| CN104085083A (en) * | 2014-06-19 | 2014-10-08 | 东莞劲胜精密组件股份有限公司 | Liquid silicone rubber injection mold |
| CN104191564A (en) * | 2014-08-29 | 2014-12-10 | 苏州正豪塑胶电子有限公司 | Mould with cutting and overflowing functions |
| CN105346026A (en) * | 2015-10-29 | 2016-02-24 | 芜湖市万华塑料制品有限公司 | Insulating framework injection mold conducting demolding easily |
| CN105346007A (en) * | 2015-11-26 | 2016-02-24 | 洛阳市建园模具制造有限公司 | Pouring technique for sealing plug pressing plate |
| CN106584779A (en) * | 2016-12-22 | 2017-04-26 | 东莞烨嘉电子科技有限公司 | Injection molding device capable of cutting nozzle inside mold |
| CN110315693A (en) * | 2018-03-30 | 2019-10-11 | 昆山康龙电子科技有限公司 | Micro-component and its forming method |
| CN110406011A (en) * | 2019-06-25 | 2019-11-05 | 广东长盈精密技术有限公司 | The production method of first embryo material and electronic product matrix |
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| CN110406011B (en) * | 2019-06-25 | 2022-03-29 | 广东长盈精密技术有限公司 | Manufacturing method of primary blank and electronic product substrate |
| CN110681840A (en) * | 2019-10-21 | 2020-01-14 | 胡利丽 | High-vacuum die-casting device for die-casting die |
| CN111976083A (en) * | 2020-07-30 | 2020-11-24 | 广东长盈精密技术有限公司 | Watch middle frame and processing method thereof |
| CN111976083B (en) * | 2020-07-30 | 2022-06-21 | 广东长盈精密技术有限公司 | Watch middle frame and processing method thereof |
| CN114179295A (en) * | 2020-09-15 | 2022-03-15 | Oppo（重庆）智能科技有限公司 | Preparation method of shell and electronic equipment |
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