CN201604274U - Two-color die - Google Patents

Two-color die Download PDF

Info

Publication number
CN201604274U
CN201604274U CN2009202844004U CN200920284400U CN201604274U CN 201604274 U CN201604274 U CN 201604274U CN 2009202844004 U CN2009202844004 U CN 2009202844004U CN 200920284400 U CN200920284400 U CN 200920284400U CN 201604274 U CN201604274 U CN 201604274U
Authority
CN
China
Prior art keywords
die
punch
separator
die cavity
gap
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.)
Expired - Fee Related
Application number
CN2009202844004U
Other languages
Chinese (zh)
Inventor
李荣川
沈桂钰
唐金龙
陆金花
李燕荣
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.)
TANG BINGYUAN
Original Assignee
TANG BINGYUAN
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 TANG BINGYUAN filed Critical TANG BINGYUAN
Priority to CN2009202844004U priority Critical patent/CN201604274U/en
Application granted granted Critical
Publication of CN201604274U publication Critical patent/CN201604274U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model provides a two-color die, which has the advantages of simple structure, no need of a supporting large-scale injection molding machine and high injection efficiency. The two-color die comprises a male die and a female die. A molded surface of the female die and a molded surface of the male die form a die cavity. The male die comprises a first male die and a second male die. A gap is reserved between the first male die and the second male die. A separator, which extends into the die cavity to divide the die cavity into a first die cavity and a second die cavity which are not communicated with each other, is arranged in the gap. The first die cavity and the second die cavity are respectively communicated with a first pouring channel and a second pouring channel. The separator is connected with a transmission mechanism. The separator can exit the die cavity along the gap under the driving of the transmission mechanism so as to be static at the following position where the gap on the molded surface of the male die is sealed by the surface of the separator.

Description

Double-color mold
Technical field
The utility model relates to a kind of double-color mold and system.
Background technology
Traditional bicolor injection mould has " punch translation " and " punch rotation " two kinds of forms.
The mould of " punch translation " is referring to Fig. 1-4, and it has first die 1,2 two dies of second die and a punch 3.First die 1, second die 2, first barrel 5, second barrel 6 are arranged on injection machine and decide on the plate 10.Punch 3 is arranged on the motor-driven plate 11 of injection moulding.The die cavity 4 that the profile of first die 1 and the profile of punch are formed is the part of finished product just.Its injection moulding process: during first barrel, 5 injections that communicate with die cavity 4, the punch and the first die closure (Fig. 1) are finished the injection of first kind of plastics.After first kind of plastics solidified, first die separated with punch, and the semi-finished product 9 that formed by first kind of plastics rest on the punch, and moved to the position (Fig. 2) of aiming at second die with punch.The profile of second die and the profile of punch are formed die cavity 25, after the injection machine closure, when second barrel 6 that communicates with die cavity 25 carries out the injection (Fig. 3) of second kind of plastics, second kind of plastics just are filled into the space in the die cavity 25, after second kind of plastics solidified, injection machine was opened mould, push rod 7 actions, make finished product break away from punch, take out complete goods 8 (Fig. 4).
The double-color mold of " punch rotation " form is referring to Fig. 5-8, and it has first die 1,2 two dies of second die and first punch 3, second punch, the 4 back-to-back punch that are combined into.This punch is rotatable.The die cavity 10 that the profile of the profile of first die and first punch is formed is parts of finished product.The die cavity 11 that the profile of the profile of second die and second punch is formed is another part of finished product.The double coloured plastic injection machine that is equipped with has first barrel 5 that communicates with die cavity 10,6 two barrels of second barrel that communicate with die cavity 11, and second barrel 6 generally is arranged on the vertical direction of the injection machine direction of motion.First kind of plastics of first barrel, 5 injections, second kind of plastics of second barrel, 6 injections.This mould can be injected two kinds of different plastics simultaneously.After two kinds of plastics injecting solidified, injection machine was opened and is ejected complete goods 8 (referring to Fig. 6, only be being ejected of complete goods 8 on second punch, " semi-finished product " 9 that first kind of plastics form are still stayed on first punch) by push rod 7.After taking down goods, " semi-finished product " 9 of first kind of plastics formation are followed second punch and are turned over 180 degree (Fig. 7).
After the injection machine closure, carry out next one circulation (Fig. 8).
Because first, second barrel of " punch translation " pattern is injection in turn, and first, second barrel of " punch rotation " pattern is simultaneously injected.So, same product, the efficient of using " punch rotation " mode of manufacture is with 200% of the efficient of " punch translation " mode of manufacture.
The common drawback of above-mentioned two kinds of double-color molds is exactly that punch, die quantity are more, and the mould complexity requires injection machine that bigger working space is arranged simultaneously, so investment is bigger, energy consumption is also bigger.The mould of " punch rotation " pattern in work is, needs rotation, also reduced injection moulding efficient.
The utility model content
The purpose of this utility model provide the high-quality mould simple, need not the double-color mold that large size plastic jetting-moulding device is supporting and injection moulding efficient is high.
Described double-color mold comprises punch, die, and the profile of die and the profile of punch are formed die cavity, and described punch comprises first punch and second punch two parts, and is gapped between two parts; In this gap, be provided with and extend into the separator that in the die cavity die cavity is divided into two first die cavities that do not communicate and second die cavity; First die cavity and second die cavity communicate with the first cast passage, the second cast passage respectively; Separator is connected with transmission mechanism; Separator can withdraw from die cavity and make separator be still in following position along the gap under the drive of transmission mechanism: the gap at punch profile place is sealed by the surface of separator.
When first kind of plastics carried out injection moulding by the first cast passage to first die cavity, because separator makes first die cavity that does not communicate or not with second die cavity, first kind of plastics can only be full of first die cavity, and can not flow into second die cavity.After first kind of parts of plastics solidified, drive separator by transmission mechanism and withdraw from die cavity and make and sealed by the surface of separator in the gap at punch profile place.At this moment, second die cavity of having formed sealing at the surface of the separator at punch profile place, the profile of second punch, the profile of die, first kind of plastics etc.When second kind of plastics carried out injection moulding by the second cast passage to second die cavity, second kind of plastics just had been full of second die cavity.First kind of plastics and second kind of plastics have been combined into finished product.This double-color mold is single chamber dijection mould.
As further improvement, the width in described gap is slightly larger than the width that is arranged on separator wherein.The width in described gap is than the big 0.01-0.03mm of width of separator.The width in brief description gap is slightly larger than the reason of the width of separator.The width in gap is slightly larger than the width that is arranged on separator wherein, is in order to guarantee that suitable distance is arranged between separator first punch relative with it, second punch (approximately about 0.02mm).
If first punch that separator is relative with it or the distance between second punch are excessive, the plastics of melting state will enter between separator first punch or second punch relative with it, make the mould cisco unity malfunction.If this distance is too small, first punch and second punch will clamp separator, make that it can not proper motion.General in the use of mould, framedly be out of shape by the meeting that influences of injection pressure downwards, can produce a very big power that compresses first punch and second punch.
The utility model adopts a die and punch divided into two parts to realize double-shot moulding, the mould structure complexity, and volume is little, does not need injection machine that bigger working space is arranged, so invest lessly, energy consumption is low.Simultaneously, in injection moulding process, die or punch do not have extra rotation, mobile action, injection moulding efficient height.
The method of using above-mentioned double-color mold to prepare moulding may further comprise the steps: the punch and the punch of first punch and second punch composition is involutory, and die profile and punch profile composing type chamber; Drive separator by transmission mechanism and stretch into die cavity, die cavity is divided into two first die cavities that do not communicate and second die cavity along the gap between first punch and second punch; By the first cast passage first die cavity is carried out injection moulding; Driving separator by transmission mechanism withdraws from die cavity and make separator be still in following position along the gap: the gap at punch profile place is sealed by the surface of separator; By the second cast passage second die cavity is carried out injection moulding.
The utility model also provides the another kind of double-color mold that has similar structures with above-mentioned double-color mold, it comprises punch, die, the profile of die and the profile of punch are formed die cavity, and described die comprises first die and second die two parts, and is gapped between two parts; In this gap, be provided with and extend into the separator that in the die cavity die cavity is divided into two first die cavities that do not communicate and second die cavity; First die cavity and second die cavity communicate with the first cast passage, the second cast passage respectively; Separator is connected with transmission mechanism; Separator can withdraw from die cavity and make separator be still in following position along the gap under the drive of transmission mechanism: the gap at die profile place is sealed by the surface of separator.Its operation principle and above-mentioned double-color mold are similar, no longer explanation.
Description of drawings
Different conditions schematic diagram during the mould that Fig. 1-4 is respectively " punch translation " is used in the injection moulding process.
Different conditions schematic diagram during the mould that Fig. 5-8 is respectively " punch rotation " is used in the injection moulding process.
Fig. 9-12 is respectively the different conditions schematic diagram in the injection moulding process in the utility model application.
The specific embodiment
Double-color mold of the present utility model is embedded in the convex mould base 22 jointly referring to Fig. 9-12, the first punch (mold insert) 1, second punch (mold insert) 2, forms punch.Punch is arranged on the motor-driven plate 11 of injection moulding.Die 3 is arranged on injection machine to be decided on the plate 10.
Between first punch and second punch gapped 12.Separator 15 is set in gap 12.The width w+0.02mm of the width in gap (height of boss) h=separator.。Separator 15 lower ends are connected with hydraulic jack 18.Separator can slide up and down under the drive of hydraulic jack.When separator moves upward when extending in the die cavity, die cavity is divided into two first die cavities 13 that do not communicate and second die cavity 14.Separator can withdraw from die cavity under the drive of hydraulic jack 18 and make separator 15 be still in following position along the gap: between first punch and second punch, sealed by the upper surface 19 of separator 15 in the gap at punch profile place.First barrel 5 communicates with first die cavity 13 by the first cast passage.Second barrel 6 communicates with second die cavity 14 by the second cast passage, and second barrel is in the vertical direction of the injection machine direction of motion.
Its course of work: punch and die that first punch, second punch, convex mould base are formed is involutory, die profile and punch profile composing type chamber.Drive separator by hydraulic jack and stretch into die cavity, die cavity is divided into two first die cavities that do not communicate and second die cavity along the gap.First kind of plastics injected (referring to Fig. 9) by the first cast passage to first die cavity.After a kind of plastics of grade in an imperial examination have partial coagulation, driving separator by hydraulic jack withdraws from die cavity and make separator be still in following position along the gap: (upper surface of separator is equal with the profile of punch, referring to Figure 10) sealed in the gap at punch profile place by the upper surface of separator.Second kind of plastics injected (referring to Figure 11) by the second cast passage to second die cavity.After second kind of plastics solidified fully, injection machine was opened, and by the push rod 20 that passes punch complete goods 21 was ejected to break away from punch (referring to Figure 12).Injection machine cuts out then, carries out next one circulation.

Claims (5)

1. double-color mold comprises punch, die, and the profile of die and the profile of punch are formed die cavity, and it is characterized in that: described punch comprises first punch and second punch two parts, and is gapped between two parts; In this gap, be provided with and extend into the separator that in the die cavity die cavity is divided into two first die cavities that do not communicate and second die cavity; First die cavity and second die cavity communicate with the first cast passage, the second cast passage respectively; Separator is connected with transmission mechanism; Separator can withdraw from die cavity and make separator be still in following position along the gap under the drive of transmission mechanism: the gap at punch profile place is sealed by the surface of separator.
2. double-color mold according to claim 1 is characterized in that: the width in described gap is slightly larger than the width that is arranged on separator wherein.
3. double-color mold according to claim 2 is characterized in that: the width in described gap is than the big 0.01-0.03mm of width of separator.
4. double-color mold according to claim 1 is characterized in that: described transmission mechanism is a hydraulic jack.
5. double-color mold comprises punch, die, and the profile of die and the profile of punch are formed die cavity, and it is characterized in that: described die comprises first die and second die two parts, and is gapped between two parts; In this gap, be provided with and extend into the separator that in the die cavity die cavity is divided into two first die cavities that do not communicate and second die cavity; First die cavity and second die cavity communicate with the first cast passage, the second cast passage respectively; Separator is connected with transmission mechanism; Separator can withdraw from die cavity and make separator be still in following position along the gap under the drive of transmission mechanism: the gap at die profile place is sealed by the surface of separator.
CN2009202844004U 2009-12-09 2009-12-09 Two-color die Expired - Fee Related CN201604274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202844004U CN201604274U (en) 2009-12-09 2009-12-09 Two-color die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202844004U CN201604274U (en) 2009-12-09 2009-12-09 Two-color die

Publications (1)

Publication Number Publication Date
CN201604274U true CN201604274U (en) 2010-10-13

Family

ID=42948984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202844004U Expired - Fee Related CN201604274U (en) 2009-12-09 2009-12-09 Two-color die

Country Status (1)

Country Link
CN (1) CN201604274U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102514145A (en) * 2011-12-16 2012-06-27 广东步步高电子工业有限公司 Multicolor triple-template forming technique of silica gel
CN105014872A (en) * 2014-04-23 2015-11-04 株式会社小糸制作所 Two-color molding method and two-color molded article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102514145A (en) * 2011-12-16 2012-06-27 广东步步高电子工业有限公司 Multicolor triple-template forming technique of silica gel
CN105014872A (en) * 2014-04-23 2015-11-04 株式会社小糸制作所 Two-color molding method and two-color molded article

Similar Documents

Publication Publication Date Title
CN202965078U (en) Double-material injection mold
CN203485389U (en) Molding die compressing twice
CN101254642A (en) Dual-color one-shot forming injection mold and injection molding method thereof
CN201604274U (en) Two-color die
CN202428619U (en) Injection mold
CN203343437U (en) Multidirectional-opening powder metallurgy die
CN101491932A (en) Double-color injection-molding die with active spacing block and preparation method thereof
CN201833550U (en) Sliding block transverse core pulling mechanism for injection mold
CN102092122A (en) Double-color die and method for preparing plastic injection molded parts by using same
CN209521215U (en) Superposition double mould cavity molding die up and down
CN206201351U (en) A kind of injection mold of automatic shaping
CN201385406Y (en) Dual-color injection mould with movable isolation sheet
CN205148793U (en) Multilocular tee bend mould of a mould
CN108177307A (en) Bicolor injection mould edge of a knife sealing quadric injection mould mechanism
CN204604767U (en) A kind of voluminous injection mould
CN202006560U (en) Gate type plastic bicolor die
CN204451063U (en) Box cover die in single valve pin trumpet assembly two-fold
CN201603804U (en) One-step molding die for flanging at two sides of V-shaped part
CN203752418U (en) Mold structure capable of improving injection molding shrinkage
CN202572840U (en) Injection molding die for front supporting pad of engine
CN213082041U (en) Box mould convenient to drawing of patterns
CN210969726U (en) Low-cost miniature injection mold
CN212795773U (en) Multi-cylinder mold opening device of injection molding equipment for special engineering plastic magnetic processing
CN206544287U (en) One kind takes bottom and enters glue automatic water gap cutting injection mould
CN206230007U (en) A kind of die casting for elevator motor end cap

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101013

Termination date: 20121209

C17 Cessation of patent right