CN218778842U

CN218778842U - Mould unit for optical lens precision profiling equipment

Info

Publication number: CN218778842U
Application number: CN202223537473.4U
Authority: CN
Inventors: 郑邦祥
Original assignee: HUBEI GEBIJIA PHOTOELECTRIC TECHNOLOGY CO LTD
Current assignee: HUBEI GEBIJIA PHOTOELECTRIC TECHNOLOGY CO LTD
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-03-31
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a precision die mould unit for equipment of optical lens, including last die unit and bed die unit, it comprises last die holder, last mould drift and last mould lifting unit to go up the die unit, the bed die unit comprises bed die holder, bed die, lower mould drift and lower mould lifting unit. The utility model provides a mould unit for accurate die mould equipment of optical lens sets up the heating of mould and drift through scientific overall arrangement in last mould seat, last mould drift, bed die seat, lower mould drift to and set up the accurate control that the thermocouple of last mould seat, bed die seat realized the temperature, make it keep in the best temperature range, lens product after having avoided the die mould the condition that drawing of patterns difficulty, stress burst and size are not up to standard appears.

Description

Mould unit for optical lens precision profiling equipment

Technical Field

The utility model belongs to the technical field of optical lens production facility, concretely relates to optical lens is mould unit for accurate die mould equipment.

Background

The optical lens is an optical element for polymerizing or dispersing light, can be widely applied to various fields of automobiles, security protection, digital cameras, lasers, optical instruments and the like, and is produced by putting a glass material block with proper weight into a profiling equipment die after being softened at high temperature, and carrying out hot pressing through die punches with different shapes to obtain corresponding lens products. However, in the process of profiling by using the existing profiling equipment, due to unreasonable control of the temperature of the die, the problems that the lens product is difficult to demould, stress cracking is caused by nonuniform internal and external temperatures, the size of the product does not reach the standard and the like are caused after profiling.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the deficiencies of the prior art, providing a but accurate control temperature's accurate die unit for die mould equipment of optical lens.

In order to achieve the purpose, the technical scheme is as follows:

a mould unit for optical lens precision profiling equipment is characterized in that the upper mould unit consists of an upper mould seat, an upper mould punch and an upper mould lifting unit, wherein the upper part of the upper mould seat is connected with the upper mould lifting unit, the upper mould lifting unit is the upper mould lifting unit of the profiling equipment and drives the upper mould unit to move up and down, an upper heating rod array is arranged in the upper mould seat in the vertical direction, and an upper thermocouple array is arranged in the horizontal direction and is respectively used for heating and measuring the temperature of the upper mould and the upper mould punch; the upper die is arranged at the bottom of the upper die base; the bottom of the upper die punch is in the shape of the upper part of an optical lens product to be pressed and is arranged in the upper die; the lower die unit consists of a lower die seat, a lower die punch and a lower die lifting unit, wherein a lower heating rod array is arranged in the lower die seat in the vertical direction, and a lower thermocouple array is arranged in the horizontal direction and is respectively used for heating and measuring the temperature of the lower die and the lower die punch; the lower die is arranged on the upper part of the lower die seat; the upper part of the lower die punch is in the shape of the bottom of an optical lens product to be molded, the lower die punch is arranged in the lower die, the bottom of the lower die punch is connected with the lower die lifting unit, and the lower die punch can move up and down in the lower die under the action of the lower die lifting unit to mold the optical lens product.

As the utility model discloses a another kind of preferred scheme, it is provided with the connecting hole to go up mould lower part edge and upper portion, links to each other with last mould seat and last mould drift respectively through the screw, can change last mould and last mould drift according to the die mould optical lens product of difference.

As another preferred scheme of the utility model, it is provided with the heating chamber to go up mould drift center part for mould drift heating rod is gone up in the installation, and the inside and outside temperature that makes to go up the mould drift keeps even.

As another preferred scheme of the utility model, lower mould drift middle part is provided with lower mould drift heating rod for heat the lower mould drift, make the inside and outside temperature of lower mould drift keep even.

As another preferred scheme of the utility model, bed die upper portion edge is provided with the connecting hole, links to each other with the bed die seat through the screw.

As another preferred scheme of the utility model, lower mould drift central point is provided with heating chamber and lower mould lifting unit and connects the chamber for installation lower mould drift heating rod and lower mould lifting unit make the inside and outside temperature of lower mould drift keep evenly.

As another preferred scheme of the utility model, the outside heat preservation shell that still is provided with of mould unit for the accurate die mould equipment of optical lens.

Compared with the prior art, the utility model provides a mould unit for accurate die mould equipment of optical lens has following gain effect:

the optical lens precision die mould for equipment that this embodiment provided is through the heating rod realization of scientific overall arrangement setting in last mould seat, last mould drift, bed die seat, lower mould drift to mould and drift, and set up the thermocouple realization temperature's of last mould seat, bed die seat accurate control, make it keep in the best temperature range, the lens product after having avoided the die mould the circumstances that the drawing of patterns difficulty, stress burst and size are not up to standard appear.

Drawings

Fig. 1 is a schematic sectional structure diagram of the upper mold unit of the present invention, and fig. 2 is a schematic sectional structure diagram of the lower mold unit of the present invention.

Wherein: 11-upper die holder; 12-upper mould; 13-an upper die punch; 14-an upper heating rod array; 15-upper thermocouple array; 16-an upper die punch heating rod; 17-an upper die lifting unit; 21-a lower die base; 22-lower mould; 23-a lower die punch; 24-lower heating rod array; 25-lower thermocouple array; 26-lower die punch heating rod; 27-a lower die lifting unit; and 3, a heat preservation shell.

Detailed Description

For a better understanding of the present invention, the following detailed description of the embodiments of the present invention is described in conjunction with the accompanying drawings.

As shown in fig. 1-2, a mold unit for an optical lens precision profiling apparatus comprises an upper mold unit and a lower mold unit, wherein the upper mold unit comprises an upper mold base 11, an upper mold 12, an upper mold punch 13 and an upper mold lifting unit 17, an upper heating rod array 14 is arranged in the upper mold base 11 in the vertical direction, and an upper thermocouple array 15 is arranged in the horizontal direction; the lower edge and the upper part of the upper die 12 are provided with connecting holes which are respectively connected with the upper die base 11 and the upper die punch 23 through screws; the bottom of an upper die punch 13 is in the shape of the upper part of an optical lens product to be molded, the upper die punch is arranged in an upper die 12, a heating cavity is arranged at the central part of the upper die punch 13 and used for installing an upper die punch heating rod 16, and the upper part of an upper die base 11 is connected to the lower part of an upper die lifting unit 17 and can move up and down under the action of the upper die lifting unit 17; the lower die unit consists of a lower die base 21, a lower die 22, a lower die punch 23 and a lower die lifting unit 27, wherein a lower heating rod array 24 is arranged in the lower die base 21 in the vertical direction, and a lower thermocouple array 25 is arranged in the horizontal direction; the upper edge of the lower die 22 is provided with a connecting hole which is connected with the lower die base 21 through a screw; the upper part of the lower die punch 23 is the bottom shape of the optical lens product to be pressed and is arranged in the lower die 22, the central part of the lower die punch 23 is provided with a heating cavity for installing a lower die punch heating rod 26, the bottom of the lower die punch 23 is connected to the upper part of the lower die lifting unit 27 and can move up and down in the lower die 22 under the action of the lower die lifting unit 27, and the pressing of the optical lens product is realized. And a heat preservation shell 3 is also arranged outside the mold unit for the optical lens precision profiling equipment.

When the device is used, firstly, the upper die unit is heated to a preset temperature, meanwhile, the lower die punch of the lower die unit is lowered to the inside of the lower die and heated to the preset temperature, at the moment, the lower die punch 23 is driven by the lower die lifting unit 27 to be lifted to be flush with the upper surface of the lower die 22 in the lower die 22, a preheated glass blank is put on the upper surface of the lower die 22, then the upper die unit is pressed down and the lower die unit is folded under the driving of the upper die lifting unit 17, the glass blank is pressed into a forming cavity formed by sealing the upper die punch 13 and the lower die punch 23 under the action of pressure, the upper die punch 13 and the lower die punch 23 are heated through the upper heating rod array 14, the upper die punch heating rod 16, the lower heating rod array 24 and the lower die punch heating rod 26 while the pressure is maintained for forming, and the accurate control of the temperature is realized through the upper thermocouple array 15 and the lower thermocouple array 25. After the preset time is reached, the upper die unit and the lower die unit are opened, the lower die punch 23 is driven by the lower die lifting unit 27 to descend, and the lower die punch is separated from contact with the lens product after being molded and enters the next molding production period.

The heating rod that this embodiment set up in last mould seat 11, last mould drift 13, lower mould seat 21, lower mould drift 23 through scientific overall arrangement realizes the heating to mould and drift to and the accurate control of setting at the thermocouple realization temperature of last mould seat 11, lower mould seat 21, make it keep in the best temperature range, the lens product of having avoided the die mould after the circumstances that drawing of patterns difficulty, stress burst and size are not up to standard appear.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A die unit for optical lens precision profiling equipment is characterized by comprising an upper die unit and a lower die unit,

the upper die unit consists of an upper die seat, an upper die punch and an upper die lifting unit, wherein the upper part of the upper die seat is connected with the upper die lifting unit, the upper die lifting unit is the upper die lifting unit of the profiling equipment and drives the upper die unit to move up and down, an upper heating rod array is arranged in the upper die seat in the vertical direction, and an upper thermocouple array is arranged in the horizontal direction; the upper die is arranged at the bottom of the upper die base; the bottom of the upper die punch is in the shape of the upper part of an optical lens product to be molded and is arranged in the upper die;

the lower die unit consists of a lower die seat, a lower die punch and a lower die lifting unit, wherein a lower heating rod array is arranged in the lower die seat in the vertical direction, and a lower thermocouple array is arranged in the horizontal direction; the lower die is arranged on the upper part of the lower die seat; the upper part of the lower die punch is in the shape of the bottom of an optical lens product to be molded, the lower die punch is arranged in the lower die, the bottom of the lower die punch is connected with the lower die lifting unit, and the lower die punch can move up and down in the lower die under the action of the lower die lifting unit to mold the optical lens product.

2. The die unit for an optical lens precision profiling apparatus as claimed in claim 1, wherein the upper die is provided with coupling holes at the lower edge and the upper portion thereof, respectively coupled to the upper die base and the upper die punch by screws.

3. The die unit for an optical lens precision press molding apparatus as claimed in claim 1, wherein said upper die punch is provided at its center with a heating cavity for mounting an upper die punch heating rod.

4. The mold unit for an optical lens precision profiling apparatus as claimed in claim 1, wherein the upper edge of the lower mold is provided with a connection hole connected to the lower mold base by a screw.

5. The die unit for an optical lens precision profiling apparatus as claimed in claim 1, wherein the lower die punch is provided at a central portion thereof with a heating chamber and a lower die lifting unit coupling chamber for mounting the lower die punch heating rod and the lower die lifting unit.

6. The mold unit for precision press molding of optical lenses, according to claim 1, wherein a thermal insulating shell is further provided outside the mold unit for precision press molding of optical lenses.