CN201433160Y

CN201433160Y - Optical glass forming plug

Info

Publication number: CN201433160Y
Application number: CN2009203057561U
Authority: CN
Inventors: 项中科; 袁俊鸿
Original assignee: Chengdu Guangming Optoelectronics Co Ltd
Current assignee: CDGM Glass Co Ltd; Chengdu Guangming Optoelectronics Co Ltd
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2010-03-31
Anticipated expiration: 2019-07-07

Abstract

The utility model provides a forming plug capable of enabling the machining amount of optical glass stripes with the viscosity of lower than 10dpas to be less than 3 percent. The optical glass formingplug comprises a main body and a working face, wherein the working face is an aspheric surface consisting of an upper line, a lower line, a left line and a right line. The heat dissipation of glass liquid is quicker by changing the shape of the working face of the forming plug, the machining amount of the obtained glass stripes is less than 3 percent, even most of the glass stripes are free frommachining, and the optical glass forming plug can be widely applied to the forming of high-end heavy fire-stone, lanthanide series and fluorophosphate optical glass.

Description

Opticglass moulding plug

Technical field

The utility model relates to a kind of opticglass moulding plug, particularly a kind ofly produces the used moulding plug of opticglass that viscosity is lower than 10dpas.

Background technology

The moulding plug is as the part of optical glass strip material forming mould, and major function is to allow high temp glass liquid move by certain flow direction on the surface within it, by its heat radiation, to the estriate glass of moulding bed die formation solidified.The working face of at present common moulding plug is the indent cylindrical surface that cast iron or xantal material are made, and its gradient α is certain, and the moulding plug gradient α that adopts is 65 ° usually.Along with opticglass constantly develops, the opticglass market requirement that viscosity is lower than 10dpas is bigger, but low-viscosity opticglass is little because of viscosity in moulding process, mold temperature is high, if adopt traditional moulding plug, can be uneven because of plug heat radiation, glass forms the dead angle easily in plug flows out to the process of moulding bed die, limit mould, produce stripes problem, the glass cord amount of finish is generally at 5-30%, the production cost height.

The utility model content

Technical problem to be solved in the utility model provides a kind of viscosity that can make and is lower than 10dpas opticglass striped amount of finish less than 3% moulding plug.

The technical scheme that the utility model technical solution problem is adopted is: opticglass moulding plug, comprise main body and a working face, and described working face constitutes an aspheric surface by last lines, following lines, left lines and four lines of right lines.

The beneficial effects of the utility model are: the utility model is by the shape of the working face of change moulding plug, make the glass metal heat radiation faster, resulting glass cord amount of finish is less than 3%, even most glass cords exempt from processing, can be widely used in the moulding of high-end dense flint class, group of the lanthanides and fluorophosphate optical glass.

Description of drawings

Fig. 1 is the stereographic map of moulding plug of the present utility model.

Fig. 2 is the stereographic map of another kind of moulding plug of the present utility model.

Fig. 3 is the vertical view of the another kind of moulding plug of utility model.

Fig. 4 is the glass ware forming synoptic diagram.

Embodiment

Opticglass moulding plug is the key part that high temp glass liquid is converted into the definite shape curing glass, if its unreasonable structure can cause the heat radiation of low-viscosity glass uneven, thereby produce striped.

As Fig. 1, Fig. 2 and shown in Figure 3, moulding plug of the present utility model comprises main body 6 and a working face 1, and described working face 1 constitutes an aspheric surface by last lines 2, following lines 3,

left lines

4 and 5 four lines of right lines; Described working face 1 is 15-60 ° with the gradient α of the lower plane of main body 6; Left side lines 4 and right lines 5 can be straight lines, as shown in Figure 1, also can be curves, as shown in Figure 2; The radian of last lines 2 and following lines 3 can be different, as depicted in figs. 1 and 2; Last lines 2, down lines 3,

left lines

4 and 5 four lines of right lines can combine for circular arc, hyperbolic line or by several sections curves.

The main body 6 of glass ware forming plug of the present utility model is made by cast iron, xantal or graphite.

The utility model is by changing the radiating surface that gradient α increases glass metal; It is to consider the upper and lower temperature difference and the left and right sides temperature difference of glass metal that working face 1 adopts aspheric purpose, allows near the glass metal of bed die faster with the glass metal heat radiation that is positioned at the center.

As shown in Figure 4, it is the glass ware forming synoptic diagram, glass precursor solution flows out through leaking material pipe 7, contact with the working face 1 of moulding plug main body 6, uncured glass metal flows forward along bed die 11 and Bian Mo 10, and by traction calculon 8 and transporting reticulation belt by draw hook 9 to front haulage, forming solidified does not have the rare viscosity opticglass of striped.

Claims

1. opticglass moulding plug comprises a main body (6) and a working face (1), it is characterized in that: described working face (1) constitutes an aspheric surface by last lines (2), following lines (3), left lines (4) and (5) four lines of right lines.

2. opticglass moulding plug as claimed in claim 1 is characterized in that: described working face (1) is 15-60 ° with the gradient α of the lower plane of main body (6).

3. opticglass moulding plug as claimed in claim 1 or 2 is characterized in that: described left lines (4) and right lines (5) are straight line or curve.

4. opticglass moulding plug as claimed in claim 1 or 2 is characterized in that: described upward lines (2) are different with the radian of following lines (3).

5. opticglass moulding plug as claimed in claim 1 or 2 is characterized in that: describedly go up lines (2), lines (3), left lines (4) and (5) four lines of right lines are circular arc, hyperbolic line or are combined by several sections curves down.

6. opticglass moulding plug as claimed in claim 1 or 2 is characterized in that: described main body (6) is made by cast iron, xantal or graphite.