CN1978170A

CN1978170A - Mould

Info

Publication number: CN1978170A
Application number: CN 200510101876
Authority: CN
Inventors: 蔡明江
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: 2005-11-29
Filing date: 2005-11-29
Publication date: 2007-06-13

Abstract

A mold includes an upper mold, a lower mold and an adjusting element. The lower mold includes a lower mold base and a lower mold core. An opening is opened on the lower mold base, and the lower mold core is accommodated in the opening. There is a gap between the lower mold core and the side wall of the lower mold base opening. The lower mold base is provided with an adjustment hole on the side wall of the opening, and the adjustment element for adjusting the position of the lower mold core in the opening of the lower mold base is accommodated in the adjustment hole of the lower mold base.

Description

Mould

[technical field]

The present invention relates to a kind of mould, especially relate to a kind of contraposition mould accurately.

[background technology]

Along with the continuous development and change of the science and technology and the market demand, manufacturer constantly releases the portable electron device that is used to take pictures that function renewal is regenerated, as the mobile phone of subsidiary camera function and digital camera etc.The lens assembly that is used for portable electron device mainly adopts plastic aspherical element eyeglass and glass aspherical lens.

No matter be plastic aspherical element eyeglass or glass aspherical lens, the design of eyeglass at first by optics emulation to determine each surperficial curvature shapes of optical mirror slip, carry out again afterwards that lens mold designs and produces and die processing.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 required precision is quite high, so the mould upper and lower mould aligning accuracy of machining lens requires higher.

General mould adopts the fine positioning pin to improve the upper and lower mould aligning accuracy of 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 cube, all have opening (figure mark) on it, upper cores 12 and down die 22 all fix in the opening (figure is mark) at upper bolster 11 and die shoe 21.Die shoe 21 is being symmetrical arranged four leads 211 around the die 22 down, and in following die 22 bilateral symmetry two alignment pins 213 is set.Upper bolster 11 is provided with four pilot holes 111 and two dowel holes 113 at correspondence position.Following die 22 is provided with four die cavities 222 at the middle part, upper cores 12 is provided with four die cavities 122 at correspondence position.When using this mould and manufacturing, in patrix 1 and counterdie 2 matched moulds processes, engage the realization coarse positioning mutually by the lead 211 of die shoe 21 and the pilot hole 111 of upper bolster 11, the alignment pin 213 of die shoe 21 and the dowel hole of upper bolster 11 113 engaging are mutually realized fine positioning, thereby make the die cavity 222 of die shoe 21 and die cavity 122 combinations of upper bolster 11 form four die cavities.Though this mould can process the eyeglass required form, but the required precision that the alignment pin location dimension can't reach eyeglass moulding product in use often appears, and alignment pin 213 and dowel hole 113 interfered and caused alignment pin 213 wearing and tearing easily, cause positioning accuracy assembly error lower or die and die holder bigger, eyeglass moulding product fraction defective is higher.

For addressing the above problem, existing method is to repair a die, but this method wastes time and energy.

[summary of the invention]

In view of this, be necessary to provide a kind of mould that can effectively improve aligning accuracy.

A kind of mould comprises upper die and lower die and regulating element.Counterdie comprises that die shoe reaches die down, opens an opening on the die shoe, and following die is contained in this opening, leaves the gap between the sidewall of counterdie Renhe die shoe opening.Die shoe is offered adjustment hole at its opening sidewalls, and regulating element is contained in this adjustment hole, to regulate down the position of die in the die shoe opening.

Compared with prior art, described mould can detect the position of finely tuning down the relative die shoe of die according to the concentricity of moulding product, makes upper and lower mould reach best aligning accuracy, and makes moulding product concentricity size reach best, improves the production yield; And the adjustment of mould needn't repair a die, and is time saving and energy saving.

[description of drawings]

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

Fig. 2 is the schematic perspective view of mould better embodiment of the present invention.

Fig. 3 is the patrix assembling schematic perspective view of mould better embodiment of the present invention.

Fig. 4 is that the counterdie of mould better embodiment of the present invention is disassembled schematic perspective view.

Fig. 5 is the counterdie assembling schematic perspective view of mould better embodiment of the present invention.

[specific embodiment]

The better embodiment of mould of the present invention is an example with the mould of plastics of ejection formation eyeglass.

Please refer to shown in Figure 2ly, this mould comprises patrix 4, counterdie 5, spring 6 and set screw 7, and its medi-spring 6 and set screw 7 all are arranged in the counterdie 5.

Please in the lump with reference to shown in Figure 3, patrix 4 is roughly cube, comprises upper bolster 41 and upper cores 42.Upper bolster 41 is opened an opening (figure is mark not) in the middle, and upper cores 42 fixings are in the opening (figure is mark) of upper bolster 41.Upper bolster 41 is opened a pin-and-hole 413 in upper cores 42 bilateral symmetry.Expose the end face center of upper bolster 41 in upper cores 42 and open a cast gate 421, have four die cavities 423 successively, between cast gate 421 and die cavity 423, at interval four running channels 422 are set, and cast gate 421 is connected by running channel 422 and die cavity 423 around cast gate 421.

Please in the lump with reference to Fig. 4 and shown in Figure 5, counterdie 5 is roughly cube, comprises that die shoe 51 reaches die 52 down.Die shoe 51 is opened a rectangular aperture 511 in the middle, pin-and-hole 413 positions at the top of opening 511 both sides corresponding to upper bolster 41 are symmetrical arranged two alignment pins 513, an adjustment hole that runs through 515 is respectively offered in adjacent two side in opening 511, be provided with screw thread in the adjustment hole 515, set screw 7 and thread helix cooperate, and die shoe 51 respectively is convexly equipped with a projection 514 in opening 511 two sides of the two side of not offering adjustment hole.Following die 52 is a cube, following die 52 is offered cast gate 521 at the cast gate 421 of the corresponding upper cores 42 in its end face center, die cavity 423 around cast gate 521 and corresponding upper cores 42 has four die cavities 523 successively, offer four running channels 522 at interval between cast gate 521 and the die cavity 523, and cast gate 521 is connected by running channel 522 and die cavity 523.Following die 52 is contained in the opening 511 of die shoe 51, and leaves the gap between the sidewall of following die 52 and die shoe 51 openings 511.

Spring 6 is the column spring, and spring 6 is set on the projection 514 of die shoe 51, and an end replaces down die 52, and the other end is replaced die shoe 51.

Set screw 7 is cylindric, and its periphery is provided with screw thread.This set screw 7 is contained in the adjustment hole 515 of die shoe 51, and the internal thread of the external screw thread of set screw 7 and adjustment hole 515 matches.

During assembling, earlier two springs 6 are set in respectively on two projections 514, with spring 6 compressions, to descend die 52 to be contained in the opening 511 of die shoe 51 again, make down adjacent two sides of die 52 replace spring 6 respectively, again two set screw 7 are screwed in two adjustment holes 515 respectively, make the end of set screw 7 replace down the sidepiece of die 52, regulate the centre position that this set screw 7 makes down die 52 be immobilizated on the die shoe 51 and is positioned at opening 511.Upper cores 42 is fixed in the opening (figure is mark) at upper bolster 41.

During debugging, patrix 4 and counterdie 5 are installed in respectively on the Jet forming machine (figure does not show), by the unlatching and the closure of Jet forming machine (figure does not show) control patrix 4 and counterdie 5.At first with patrix 4 and counterdie 5 closures, be about to upper cores 42 and following die 52 closures, the die cavity 423 of upper cores 42 and the die cavity 523 of following die 52 are in conjunction with forming four die cavities; Secondly by cast gate 421 and running channel 422 plastics that fuse are injected this die cavity by Jet forming machine (figure does not show), can form eyeglass moulding product (figure does not show) through pressurize and cooling; Open patrix 4 and counterdie 5 at last, take out these eyeglass moulding product (figure does not show), and detect the eyeglass moulding product minute surface concentricity of (figure does not show).If eccentric error occurs, then need regulate set screw 7, because the end of set screw 7 is replaced down the sidepiece of die 52, therefore regulating this set screw 7 can regulate down the position of die 52 in die shoe 51 openings 511, make upper cores 42 and following die 52 reach best aligning accuracy, and then make the minute surface concentricity of eyeglass moulding product (figure does not show) reach best.

The spring 6 that is appreciated that mould of the present invention also can be other flexible members, as dish-shaped reed.

The set screw 7 that is appreciated that mould of the present invention also can be other regulating elements, as regulating the card post, on this adjusting card post several wedge shape projectioies is set, and caves at interval and in the adjustment hole 515 of die shoe 51 several are set, and depression and wedge shape projection fasten.

Be appreciated that the alignment pin 513 of mould of the present invention, pin-and-hole 413, die cavity 423,523, projection 514, spring 6, adjustment hole 515 and set screw 7 all can be plural several.

The alignment pin 513 and the pin-and-hole 413 that are appreciated that mould of the present invention can not be provided with yet, and can realize the coarse positioning of upper cores 42 and following die 52 by aligning of upper bolster 41 and die shoe 51 yet.

Certainly, spring 6, the projection 514 of mould of the present invention can not be provided with yet, can be by the fine positioning that a set screw 7 realizes upper cores 42 and following die 52 is set respectively on four sidewalls of die shoe 51.

Claims

1. mould, comprise upper die and lower die, counterdie comprises die shoe and following die, it is characterized in that: open an opening on the die shoe, offer adjustment hole at opening sidewalls, following die is contained in the opening of die shoe, and leaves the gap between the sidewall of counterdie Renhe die shoe opening, this mould comprises that further regulating element is contained in the adjustment hole of die shoe in order to regulate down the regulating element of die position in the die shoe opening.

2. mould as claimed in claim 1 is characterized in that: described mould also comprises flexible member, and flexible member supports between the sidewall of counterdie Renhe die shoe.

3. mould as claimed in claim 2 is characterized in that: described flexible member is the column spring.

4. mould as claimed in claim 3 is characterized in that: the opening sidewalls of described die shoe is convexly equipped with projection, and the column spring housing is located on the projection.

5. mould as claimed in claim 4 is characterized in that: the adjustment hole of described die shoe is the adjustment hole that runs through the die shoe opening sidewalls, is provided with screw thread in this adjustment hole.

6. mould as claimed in claim 5 is characterized in that: described regulating element is a set screw, and this set screw is contained in the adjustment hole of die shoe, and the end of set screw is replaced down die.

7. mould as claimed in claim 1 is characterized in that: described patrix comprises upper bolster and upper cores, opens an opening on the upper bolster, and upper cores fixes in the opening of upper bolster.

8. as 2 described moulds of claim the, it is characterized in that: described flexible member is dish-shaped reed.

9. as 5 described moulds of claim the, it is characterized in that: described regulating element is for regulating the card post.

10. as 7 described moulds of claim the, it is characterized in that: described die shoe is provided with alignment pin in its opening both sides, and the upper bolster alignment pin of corresponding die shoe thereon is provided with pin-and-hole, and alignment pin and pin-and-hole fasten.