CN201385406Y - Dual-color injection mould with movable isolation sheet - Google Patents

Dual-color injection mould with movable isolation sheet Download PDF

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Publication number
CN201385406Y
CN201385406Y CN200920037269U CN200920037269U CN201385406Y CN 201385406 Y CN201385406 Y CN 201385406Y CN 200920037269 U CN200920037269 U CN 200920037269U CN 200920037269 U CN200920037269 U CN 200920037269U CN 201385406 Y CN201385406 Y CN 201385406Y
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CN
China
Prior art keywords
punch
mould
injection molding
molding cavity
injection
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
CN200920037269U
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Chinese (zh)
Inventor
查鸿达
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.)
Changzhou Jiawang Precision Mould Co Ltd
Jiangsu Delta Mould Park Development Co Ltd
Original Assignee
Changzhou Jiawang Precision Mould Co Ltd
Jiangsu Delta Mould Park Development 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 Changzhou Jiawang Precision Mould Co Ltd, Jiangsu Delta Mould Park Development Co Ltd filed Critical Changzhou Jiawang Precision Mould Co Ltd
Priority to CN200920037269U priority Critical patent/CN201385406Y/en
Application granted granted Critical
Publication of CN201385406Y publication Critical patent/CN201385406Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a dual-color injection mould with a movable isolation piece. The traditional dual-color injection mould adopts two forms of convex-mould translating and convex-mould rotating. Compared with the traditional dual-color injection mould, the dual-color mould in the utility model is a single-cavity dual-injection mould. The dual-color injection mould comprises a convex mould and a concave mould. The molded surfaces of the concave mould and the convex mould form an injection molding cavity, the convex mould comprises a first convex mould and a second convex mould, and a clearance exists between the first convex mould and the second convex mould. A movable isolation sheet which is arranged in the clearance is stretched into the injection molding cavity and divides the injection molding cavity into a first injection molding cavity and a second injection molding cavity which are not communicated. The dual-color injection mould has the characteristics of simple structure, small volume and occupation area, less investment, low energy consumption and high injection molding efficiency.

Description

A kind of bicolor injection mould with active spacing block
One, technical field
The utility model relates to a kind of bicolor injection mould, specifically a kind of bicolor injection mould with active spacing block.
Two, background technology
Traditional bicolor injection mould claims polychrome mould, many materials injection mould to have " punch translation " and " punch rotation " two kinds of forms again.
The mould of " punch translation ", it has first die, two dies of second die and a punch.First die, second die, first barrel, second barrel are arranged on injection machine to be decided on the plate.Punch is arranged on the motor-driven plate of injection moulding.The die cavity that the profile of first die and the profile of punch are formed is the part of finished product.Its injection moulding process: during the first barrel injection that communicates with die cavity, the punch and the first die closure 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 that formed by first kind of plastics rest on the punch, and moved to the position of aiming at second die with punch.The profile of second die and the profile of punch are formed die cavity, after the injection machine closure, when second barrel that communicates with die cavity carries out the injection of second kind of plastics, second kind of plastics just is filled into the space in the die cavity, after second kind of plastics solidified, injection machine was opened mould, the push rod action, make finished product break away from punch, take out complete goods.
The double-color mold of " punch rotation " form, it has first die, two dies of second die and first punch, the back-to-back punch that is combined into of second punch to be called for short combined heave die.This punch is rotatable.The die cavity that the profile of the profile of first die and first punch is formed is the part of finished product.The die cavity 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 that communicates with die cavity, two barrels of second barrel that communicate with die cavity, and second barrel generally is arranged on the vertical direction of the injection machine direction of motion.First kind of plastics of first barrel injection, second kind of plastics of second barrel injection.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 (only be being ejected of complete goods on second punch, " semi-finished product " that first kind of plastics form are still stayed on first punch) by push rod.After taking down goods, " semi-finished product " of first kind of plastics formation are followed second punch and are turned over 180 degree, after the injection machine closure, carry out next one circulation.
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.
But the common drawback of above-mentioned two kinds of double-color molds, be exactly that punch, die quantity are more, the investment amount is bigger, mould development is comparatively complicated, require injection machine that bigger working space is arranged simultaneously, operation during work is more loaded down with trivial details, and wherein the mould of " punch rotation " pattern needs rotation when work, has reduced injection moulding efficient.
Three, utility model content:
The purpose of this utility model provides a kind of bicolor injection mould with active spacing block, is that a kind of mechanism is simple, to need not large size plastic jetting-moulding device supporting, and the high double-color mold of injection moulding efficient.
A kind of bicolor injection mould with active spacing block comprises punch, die, decides plate, moves plate, push rod, die socket, feeding cylinder, the profile of die and the profile of punch are formed injection molding cavity, 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 active spacing block that in the injection molding cavity injection molding cavity is divided into two first injection molding cavities that do not communicate and second injection molding cavity; First injection molding cavity and second injection molding cavity communicate with the first cast passage, the second cast passage respectively; Active spacing block is connected with transmission mechanism; Active spacing block can withdraw from injection molding cavity along the gap under the drive of transmission mechanism, the top surface of active spacing block is sealed the gap between first punch and second punch two parts, forms the injection molding cavity that one first injection molding cavity is communicated with second injection molding cavity this moment.
When first kind of plastics carried out injection moulding by the cast passage to first injection molding cavity, because active spacing block makes first injection molding cavity not communicate with second injection molding cavity, first kind of plastics can only be full of first injection molding cavity, and can not flow into second injection molding cavity.After first kind of parts of plastics solidified, drive active spacing block by transmission mechanism and withdraw from injection molding cavity and make and sealed by the top surface of active spacing block, at this moment formed the injection molding cavity of another sealing at the profile of the profile of the top surface of the active spacing block at punch profile place, second punch, die and first kind of set plastic face in the gap at punch profile place.When second kind of plastics injecting carried out injection moulding by the cast passage to this injection molding cavity by second barrel, second kind of plastics just had been full of this injection molding cavity.This moment, first kind of plastics and second kind of plastics were combined into finished product, and this double-color mold is single chamber dijection mould.
As further improvement of the utility model; the width in described gap is slightly larger than the width that is arranged on active spacing block wherein; first punch or the distance between second punch that active spacing block is relative with it are excessive; the plastics of melting state will enter between active spacing block 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 active spacing block, 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 process experiment draws active spacing block first punch relative with it, the clearance distance between second punch is preferably about 0.02mm.
The utility model adopts a die and punch divided into two parts to realize double-shot moulding, and mould structure is uncomplicated, 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.
A kind of bicolor injection mould with active spacing block of the present utility model with respect to " punch translation " and " punch rotation " two kinds of forms of traditional double-shot moulding mould, is a kind of innovation, and this double-color mold is single chamber dijection mould.Mould structure is uncomplicated, and volume is little, does not need injection machine that bigger working space is arranged, and invests lessly, and energy consumption is low.Simultaneously, in injection moulding process, die or punch do not have extra rotation, mobile action, have improved injection moulding efficient.
Four, description of drawings
Fig. 1 is the structural representation of this utility model;
Fig. 2 is the structural representation of first punch;
Fig. 3 is the structure chart of active spacing block;
Fig. 4 Fig. 5 is the structural representation of " punch translation " mould;
Fig. 6 is the structural representation of the mould of " punch rotation ";
Member among the figure comprises: 1-decides plate, 2-second barrel, 3-active spacing block, 4-second barrel, 5-second punch, 6-first punch, 7-limited block, 8-push rod, the moving plate of 9-, 10-transmission mechanism, 11-convex mould base, 12-die, 13-first injection molding cavity, 14-second injection molding cavity.
Five, the specific embodiment:
The utility model is described in further detail below in conjunction with drawings and Examples.
A kind of bicolor injection mould of the present utility model with active spacing block, wherein a kind of bicolor injection mould with active spacing block comprises punch, die 12, decide plate 1, moving plate 9, push rod 8, die socket 11 and feeding cylinder, described punch comprises first punch 6 and second punch 5, first punch 6 and second punch 5 are inlayed in the convex mould base 11 jointly, convex mould base is arranged on the motor-driven plate 9 of injection moulding, die 12 is arranged on injection machine to be decided on the plate 1, the profile of die 12 and the profile of punch are formed injection molding cavity, first injection molding cavity 13 and second injection molding cavity 14 respectively with first barrel 2, second barrel 4 communicates; Be extruded with two limited blocks 7 on the surface 5 of first punch 6 with respect to second punch, limited block 7 contacts with second punch, 5 surfaces, and the surface of first punch 6 and second punch 5 forms the gap, and active spacing block 3 is set in the gap.Described active spacing block 3 is meshed with two limited blocks 7, limited block 7 is to be used for controlling the position of active spacing block 3 in active procedure the deviation effects injection moulding to occur to prevent banking stop, fixedly connected by connecting rod with the piston rod of transmission mechanism 10 in the lower end of active spacing block 3, active spacing block 3 can be provided with push rod 8 respectively through first punch 6 and second punch 5 along the side slip of limited block 7 on the described moving plate 9 under the drive of transmission mechanism 10.
When active spacing block 3 moves upward when extending in the injection molding cavity, injection molding cavity is divided into two first injection molding cavities 13 that do not communicate and second injection molding cavity 14.When active spacing block 3 moves downward when withdrawing from injection molding cavity, the gap at punch profile place is sealed by the upper surface of active spacing block 3, and wherein first barrel 2 communicates with first injection molding cavity 13, and second barrel 4 communicates with second injection molding cavity 14.
The width in described gap is slightly larger than the width of the active spacing block 3 that is arranged on wherein, first punch 6 or the distance between second punch 5 that active spacing block 3 is relative with it are excessive, the plastics of melting state will enter between active spacing block 3 first punch 6 or second punch 5 relative with it, make the mould cisco unity malfunction.If this distance is too small, first punch 6 and second punch 5 will clamp active spacing block 3, 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 6 and second punch 5.The process experiment draws active spacing block 3 first punch 6 relative with it, the clearance distance between second punch 5 is preferably about 0.02mm.
When first kind of plastics carried out injection moulding by the cast passage to first injection molding cavity 13, because active spacing block 3 makes first injection molding cavity 13 not communicate with second injection molding cavity 14, first kind of plastics was full of first injection molding cavity 13, and do not flow into second injection molding cavity 14.After first kind of plastics solidifies, drive active spacing blocks 3 by transmission mechanism 10 and withdraw from injection molding cavity and make and sealed by the top surface of active spacing block 3, at this moment formed the injection molding cavity of another sealing at the profile of the profile of the top surface of the active spacing block 3 at punch profile place, second punch 6, die and first kind of set plastic face in the gap at punch profile place.When second kind of plastics injecting carries out injection moulding by the cast passage to this injection molding cavity by second barrel 4, second kind of plastics just has been full of this injection molding cavity, solidify Deng second kind of institute's injection molding material, this moment, first kind of plastics and second kind of plastics were combined into finished parts, active force by push rod 8 ejects finished parts from the punch profile at last, finish whole process, this double-color mold is single chamber dijection mould.

Claims (3)

1, a kind of bicolor injection mould with active spacing block, comprise punch, die (12), decide plate (1), move plate (9), push rod (8), die socket (11), feeding cylinder, when cooperating with the profile of punch, the profile of die (12) forms injection molding cavity, it is characterized in that, described punch comprises first punch (6) and second punch (5) two parts, be provided with the gap between two parts, be provided with active spacing block (3) in this gap, described active spacing block (3) stretches into injection molding cavity injection molding cavity is divided into two first injection molding cavities (13) that do not communicate and second injection molding cavity (14); First injection molding cavity (13) links to each other respectively at first barrel (2) and second barrel (4) by the cast passage with second injection molding cavity (14); The lower end of active spacing block (3) is connected with transmission mechanism (10) by connecting rod, described active spacing block (3) can withdraw from injection molding cavity along the gap under the drive of transmission mechanism (10), push rod (8) is set through first punch (6) and second punch (5) on the described moving plate (9) respectively.
2, a kind of bicolor injection mould with active spacing block according to claim 1 is characterized in that, the side that described first punch (6) contacts with active spacing block (3) is provided with two limited blocks (7) that are meshed with active spacing block (3) bottom.
3, a kind of bicolor injection mould with active spacing block according to claim 2 is characterized in that, the width in described punch gap is than the big 0.02mm of width of active spacing block (3).
CN200920037269U 2009-02-23 2009-02-23 Dual-color injection mould with movable isolation sheet Expired - Fee Related CN201385406Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920037269U CN201385406Y (en) 2009-02-23 2009-02-23 Dual-color injection mould with movable isolation sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920037269U CN201385406Y (en) 2009-02-23 2009-02-23 Dual-color injection mould with movable isolation sheet

Publications (1)

Publication Number Publication Date
CN201385406Y true CN201385406Y (en) 2010-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN201385406Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101491932A (en) * 2009-02-23 2009-07-29 江苏长三角模具城发展有限公司 Double-color injection-molding die with active spacing block and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101491932A (en) * 2009-02-23 2009-07-29 江苏长三角模具城发展有限公司 Double-color injection-molding die with active spacing block and preparation method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100120

Termination date: 20100223