CN1978352B

CN1978352B - Floating precision positioning mould

Info

Publication number: CN1978352B
Application number: CN200510101999XA
Authority: CN
Inventors: 蔡明江; 张仁淙
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-12-02
Filing date: 2005-12-02
Publication date: 2012-01-25
Anticipated expiration: 2025-12-02
Also published as: CN1978352A

Abstract

A floating precision alignment mold, which includes an upper mold, a lower mold, a plurality of adjustment elements, a holding element, an adjustment hole and a groove, the lower mold includes a lower mold base and a lower mold core, the lower mold base An opening is opened on the top; the lower mold core is accommodated in the opening of the lower mold base, and there is a gap between the lower mold core and the side wall of the lower mold base opening; a plurality of adjustment elements are respectively embedded around the opening of the lower mold base and The position corresponding to the bottom and the lower mold core, the adjustment hole is arranged on an inner wall of the opening of the lower mold base, the groove is located on the side wall adjacent to the lower mold core and the adjustment hole, by passing the holding element through the adjustment hole Screw in, and make the screwed-in end of the holding element extend into the groove, so that the lower die core can move in the lower die seat opening without ejecting the lower die seat. The floating precision alignment mold utilizes the principle of magnetic levitation, so that the core of the lower mold can be floated and adjusted without interference between coarse positioning and fine positioning, prolonging the life of the mold.

Description

Floating precision is to position mould

[technical field]

The invention relates to a kind of mould, especially about a kind of floating precision to position mould.

[background technology]

Along with the continuous development and change of the science and technology and the market requirement, manufacturer constantly releases taking pictures that function renewal regenerates and use portable electronic equipment, like the mobile telephone that attaches camera function and digital camera etc.This portable electronic equipment mainly adopts plastic aspherical element eyeglass and glass aspherical lens with the camera lens module.

No matter be plastic aspherical element eyeglass or glass aspherical lens, its design process is at first begun by optics emulation, thereby confirms each surperficial curvature shapes of each optical lens, carries out lens mold design making and die processing afterwards again.The inside and outside two sides of the eyeglass shape of employing optical mirror slip mould manufacturing is decided by the die shape of patrix and counterdie, because the lens surface accuracy requirement is quite high, so the mould upper and lower mould aligning accuracy of machining lens requires higher.

General mould adopts the upper and lower mould aligning accuracy of fine positioning pin raising mould, the structure of existing mold as shown in Figure 1.This mould comprises patrix 1 and counterdie 2, and patrix 1 comprises upper bolster 11 and upper cores 12, and counterdie 2 comprises that die shoe 21 reaches die 22 down.Upper bolster 11 and die shoe 21 are cubes, all have opening (figure is mark not) on it, and die 22 all was fastened in the opening of upper bolster 11 and die shoe 21 under upper cores 12 reached.Be symmetrical set four guideposts 211 around the following die 22 of die shoe 21, and die 22 zygomorphy are provided with two fine positioning pins 213 down.The correspondence position of upper bolster 11 is provided with four pilot holes 111 and two dowel holes 113.Following die 22 middle parts are provided with four die cavities 222, and upper cores 12 correspondence positions are provided with four die cavities 122.When using this mould to manufacture; In patrix 1 and counterdie 2 matched moulds processes; Guidepost 211 through die shoe 21 engages the realization coarse positioning each other with the pilot hole 111 of upper bolster 11; The fine positioning pin 213 of die shoe 21 engages with the dowel hole of upper bolster 11 113 each other realizes fine positioning, thereby makes the die cavity 222 of die shoe 21 combine to form four die cavities with the die cavity 122 of upper bolster 11.

Though this kind mould can process the eyeglass desired shape; Yet; Fine positioning receives the interference of die holder guidepost 211 easily, and fine positioning pin 213 and 213 wearing and tearing of dowel hole 113 interference being prone to cause fine positioning pin, causes bearing accuracy assembly error lower or die and die holder bigger; And die life is shorter, and eyeglass moulding article fraction defective is higher.

[summary of the invention]

To above problem, be necessary to provide the mould structure that a kind of aligning accuracy is high, the life-span is long.

A kind of floating precision is to position mould, and it comprises a patrix, a counterdie and a plurality of regulatory element, and wherein, this counterdie comprises that a die shoe reaches die, opens an opening on this die shoe; This time die is placed in the opening of die shoe; Said floating precision also comprises a retaining component, an adjustment hole and a groove to position mould; This regulatory element is a magnetic part; Be embedded in respectively the die shoe opening around with bottom and the following corresponding position of die, and the said parameatal magnetic part of die shoe that is embedded in is relative with the magnetic part difference homopolarity that is embedded in down the die correspondence position, produces repulsion mutually; Also homopolarity is relative with being embedded in down magnetic part bottom the die for the magnetic part that is embedded in open bottom, produces repulsion mutually, and said adjustment hole is located at an inwall of die shoe opening; It is one to run through the through hole of this inwall; Said groove is positioned on the sidewall that die is adjacent with adjustment hole down, and this groove is an elongated slot, when die is positioned at the opening of die shoe instantly; The middle part and the adjustment hole of this groove are relative; Screw in through said retaining component is seen through said adjustment hole, and make the end of retaining component screw-in stretch in the said groove, do not eject die shoe so that this time die can move in the die shoe opening.

Compared to prior art, said floating precision utilizes magnetic to float principle to position mould, makes down the die adjustment of floating; And there is not the interference of coarse positioning and fine positioning; Prolong die life, also made moulding article concentricity size reach best simultaneously, improved the products production yield.

[description of drawings]

Fig. 1 is the structural representation of an existing mold;

Fig. 2 is the schematic perspective view of floating precision of the present invention to the position mould preferred embodiments;

Fig. 3 is the counterdie exploded perspective synoptic diagram of floating precision of the present invention to the position mould preferred embodiments;

Fig. 4 is the counterdie assembling schematic perspective view of floating precision of the present invention to the position mould preferred embodiments.

[embodiment]

Floating precision of the present invention is example to the preferred embodiments of position mould with the mould of plastics of ejection formation eyeglass.

See also shown in Figure 2ly, this mould comprises a patrix 4, a counterdie 5, a plurality of regulatory element and two retaining components, and wherein these a plurality of regulatory elements and retaining component all are arranged in the counterdie 5.

Patrix 4 is roughly cubes, and it comprises a upper bolster 42 and a upper cores 44.An opening (figure is mark not) is opened at these upper bolster 42 middle parts, and upper cores 44 is fastened in wherein.The corner location symmetry of this upper bolster 42 offers pilot hole 420.Upper cores 44 is exposed the end face central position of upper bolster 42 and is opened a cast gate 440, offers four die cavities 442 successively around this

cast gate

440, and 442 of cast gate 440 and this die cavities are established four running channels 444, and cast gate 440 is connected with four die cavities 442 through this running channel 444; Upper cores 44 is exposed the end surface side of upper bolster 42 along the position, is symmetrical set two dowel holes 446.

Please consult Fig. 3 and shown in Figure 4 in the lump, counterdie 5 is roughly cubes, and it comprises that a die shoe 52 reaches die 54.An approximate rectangular opening 520 is opened at these die shoe 52 middle parts, is symmetrical set four guideposts 522 on pilot hole 420 positions of the corresponding upper bolster 42 in the top that this opening is 520 4 jiaos.Relative two inwalls of opening 520 are offered the adjustment hole 524 that runs through respectively, are provided with IT in this adjustment hole 524.This time die 54 approximate cubess match with opening 520 shapes of die shoe 52.Cast gate 440 places of the corresponding upper cores 44 in the end face central position of following die 54 offer a cast gate 540; Die cavity 442 places around this cast gate 540 and corresponding upper cores 44 have four die cavities 542 successively; Offer four running channels 544 between cast gate 540 and this die cavity 542, and cast gate 540 is connected with die cavity 542 through this running channel 544; The dowel hole 446 of the corresponding upper cores 44 in the position, edge of following die 54 is established a fine positioning pin 548 respectively, and this fine positioning pin 548 matches with dowel hole 446.Following die 54 is placed in the opening 520 of die shoe 52, and leaves the gap between the sidewall of following die 54 and die shoe 52 openings 520.Following die 54 and adjustment hole 524 are offered a groove 546 respectively on the adjacent two side, and this groove 546 is an elongated slot, and when die 54 was positioned at the opening 520 of die shoe 52 instantly, the center was corresponding with adjustment hole 524.

In this embodiment, this regulatory element is a plurality of magnetic parts 6, and it can be alnico magnets, is embedded in the bottom of the corner location of die shoe 52 openings 520 and corner location that down die 54 is corresponding, opening 520 and the bottom of die 54 down respectively.Wherein, it is relative that magnetic part 6 and the magnetic part that is embedded in down die 54 corner locations 6 that is embedded in the corner location of die shoe 52 openings 520 distinguished homopolarities, can produce repulsion mutually; Also homopolarity is relative with the magnetic part 6 that is embedded in down die 54 bottoms to be embedded in the magnetic part 6 of opening 520 bottoms, can produce repulsion mutually.

This retaining component is two governing screw 7; Each governing screw 7 is cylindric; Its periphery is provided with outside screw, and this outside screw matches with the IT of adjustment hole 524, and the adjustment hole 524 that governing screw 7 can see through die shoe 52 screws in; The end that governing screw 7 screws in stretches into down in the groove 546 of die 54, thereby makes down die 54 can not eject die shoe 52.

During assembling, following die 54 is placed in the opening 520 of die shoe 52, again two governing screw 7 are screwed in two adjustment holes 524 respectively, its end is stretched into down in the groove 546 of die 54 sidewalls.Upper cores 44 is fastened in the opening of upper bolster 42.

In the use, patrix 4 and counterdie 5 are installed on respectively on the Jet forming machine (figure does not show), through unlatching and the closure of this this patrix 4 of Jet forming machine control with counterdie 5.When closed, the guidepost 522 of counterdie 5 aligns pilot hole 420 corresponding on the patrix 4 respectively, and in closing course, cooperatively interacts and realize coarse positioning; At this moment; The fine positioning pin 548 of following die 54 roughly aligns on the upper cores 44 corresponding dowel hole 446 respectively, in the process of being further closed, because under the magnetic part 6 repulsion effect of direction up and down; Following die 54 keeps not contacting the floating state of magnetic with die shoe 52; So in closing course, fine positioning pin 548 is done the trace adjustment with making down die 54 cooperating of dowel hole 446 in the opening 520 of die shoe 52, and finally realizes fine positioning; Be about to upper cores 44 and following die 54 closures, the die cavity 442 of upper cores 44 combines to form four die cavities with the die cavity 542 of following die 54.In the fine positioning process, can adjust state because of following die 54 is in to float, so fine positioning pin 548 can not cause wearing and tearing because of the interference that receives guidepost 544.

Be appreciated that; The corner location that the installation site of said magnetic part 6 is not limited to die shoe 52 openings 520 reaches the corner location of die 54 correspondences down; The appropriate location reaches the position of die 54 correspondences down around can being positioned at die shoe 52 openings 520, as long as make down die 54 stress equalizations.Said magnetic part 6 also is substitutable for a plurality of hot-wire coils, and homopolarity is relative respectively for corresponding magnetic field that coil produces, energising back.Said governing screw 7 also can be other retaining component, as can be adjusting card post, and it is protruding that this adjusting card post is provided with a plurality of wedge shapes on it, and a plurality of intervals depression is set in adjustment hole 524, and this caves in and engages with wedge shape is protruding.

Said floating precision utilizes magnetic to float principle to position mould, makes down the die adjustment of floating, and does not have the interference of coarse positioning and fine positioning, has prolonged die life, also makes moulding article concentricity size reach best simultaneously, raising products production yield.

Claims

1. a floating precision is to position mould, and it comprises a patrix and a counterdie, and this counterdie matches with this patrix, and this counterdie comprises that a die shoe reaches die, opens an opening on this die shoe; This time die is placed in the opening of die shoe; It is characterized in that: said floating precision also comprises a plurality of regulatory elements, a retaining component, an adjustment hole and a groove to position mould; This regulatory element is a magnetic part; Be embedded in respectively the die shoe opening around with bottom and the following corresponding position of die, and the said parameatal magnetic part of die shoe that is embedded in is relative with the magnetic part difference homopolarity that is embedded in down the die correspondence position, produces repulsion mutually; Also homopolarity is relative with being embedded in down magnetic part bottom the die for the magnetic part that is embedded in open bottom, produces repulsion mutually, and said adjustment hole is located at an inwall of die shoe opening; It is one to run through the through hole of this inwall; Said groove is positioned on the sidewall that die is adjacent with adjustment hole down, and this groove is an elongated slot, when die is positioned at the opening of die shoe instantly; The middle part and the adjustment hole of this groove are relative; Screw in through said retaining component is seen through said adjustment hole, and make the end of retaining component screw-in stretch in the said groove, do not eject die shoe so that this time die can move in the die shoe opening.

2. floating precision as claimed in claim 1 is to position mould; It is characterized in that: wherein said retaining component is a governing screw; Said governing screw is provided with outside screw; Be provided with the IT that matches with said outside screw in this adjustment hole, this governing screw can screw in through the adjustment hole of die shoe, and the end that governing screw screws in stretches into down in the groove of die.

3. floating precision as claimed in claim 1 is characterized in that position mould: wherein said retaining component is an adjusting card post, and it is protruding on this adjusting card post a plurality of wedge shapes to be set, and a plurality of intervals depression is set in the adjustment hole, and this caves in and engages with wedge shape is protruding.

4. floating precision as claimed in claim 1 is characterized in that position mould: wherein said patrix comprises a upper bolster, and a upper cores is opened an opening on this upper bolster, and this upper cores is fastened in the opening of upper bolster.

5. floating precision as claimed in claim 4 is characterized in that position mould: wherein said upper cores is exposed the end surface side of upper bolster along the position, is symmetrical set two dowel holes; The dowel hole of the corresponding upper cores in the position, edge of following die is established a fine positioning pin respectively, and this fine positioning pin matches with dowel hole.

6. floating precision as claimed in claim 4 is characterized in that position mould: wherein said die shoe is arranged with four guideposts at the tip position of four jiaos of openings, and correspondence is provided with pilot hole on the upper bolster, and this guidepost and this pilot hole are used.