CN218557862U

CN218557862U - Injection mold for glasses lens with exhaust mechanism

Info

Publication number: CN218557862U
Application number: CN202222693819.3U
Authority: CN
Inventors: 刘泽海; 叶天富; 余剑峰
Original assignee: Dongguan Guli Precision Mould Co ltd
Current assignee: Dongguan Guli Precision Mould Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-03
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses an injection mold for spectacle lens with exhaust mechanism, including lower mould and upper mould, the base is installed to the below of lower mould, and the upper surface of lower mould evenly is provided with the die cavity, the bottom of die cavity all installs the dull polish dish, the top of die cavity all is fixed with the exhaust ring, the upper mould sets up in the top of lower mould, the lower surface of upper mould evenly is provided with the exhaust duct, and the tank bottom surface of exhaust duct has all run through the exhaust hole, the inboard center of exhaust duct all is fixed with the mold core; this injection mold for glasses lens with exhaust mechanism, before the drawing of patterns, can directly polish to the lens for the lens is smooth bright and clean, does not leave the burr, avoids at the in-process fish tail hand of drawing of patterns, has also removed from and need carry out the course of working that the secondary was polished and meticulously was polished to the lens after the drawing of patterns, and when moulding plastics simultaneously, the inside bubble of reserving of raw materials can in time be squeezed out effectively, guarantees the production quality of lens.

Description

Injection mold for glasses lens with exhaust mechanism

Technical Field

The utility model relates to a relevant technical field of injection mold for the glasses lens specifically is an injection mold for glasses lens with exhaust mechanism.

Background

The spectacle lens is made of optical materials such as glass or resin and is made of transparent materials with one or more curved surfaces, the spectacle lens is often assembled with a spectacle frame to form spectacles after polishing, the spectacles are used for correcting the eyesight of a user and obtaining a clear visual field, a special injection mold is required to be used for producing the spectacle lens, the injection mold is used for production and processing, the spectacle lens is high in efficiency and speed, and the quality of the spectacle lens can be guaranteed.

But the injection mold for glasses lens that uses at present, after the drawing of patterns, the lens is more crude, and easy at the in-process fish tail hand of drawing of patterns, and need carry out the secondary to the lens after the drawing of patterns and polish and meticulously, when moulding plastics simultaneously, the inside bubble of reserving of raw materials if can not in time squeeze out effectively, will very influence the quality of lens product, causes the lens production error, leads to the waste of material.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold for glasses lens with exhaust mechanism to solve the injection mold for the glasses lens of present use that proposes in the above-mentioned background art, after the drawing of patterns, the lens is more crude, at the in-process fish tail hand of drawing of patterns easily, and need carry out the secondary to the lens after the drawing of patterns and polish and meticulously polish, when moulding plastics simultaneously, the bubble of the inside retention of raw materials if can not in time squeeze away effectively, will very influence the problem of the quality of lens product.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an injection mold for eyeglass lens with exhaust mechanism, includes the lower mould and goes up the mould, the base is installed to the below of lower mould, and the upper surface of lower mould evenly is provided with the die cavity, the dull polish dish is all installed to the bottom of die cavity, and the below center of dull polish dish is fixed with the swivel nut, the screw rod has been run through to the inside of swivel nut, and the bottom of screw rod is connected with micro motor, micro motor settles the inside at the base, the top of die cavity all is fixed with the exhaust ring, be provided with the runner between the upper surface center of die cavity and lower mould, and the middle part that the runner intersects is connected with the pouring pipe, go up the mould setting in the top of lower mould, and the vertical pouring hole that has run through in inside center of going up the mould, the lower surface of going up the mould evenly is provided with the air discharge duct, and the tank bottom surface of air discharge duct all runs through there is the exhaust hole, the inboard center of air discharge duct all is fixed with the mold core.

Preferably, the outer diameter of the sanding disc is larger than the inner diameter of the die cavity, and the sanding disc is of an arc top plate structure.

Preferably, the sanding disc is vertically welded with the threaded sleeve, and the threaded sleeve is matched with the screw rod in thread size.

Preferably, the inner diameters of the exhaust ring and the die cavity are equal, and fine holes are uniformly formed in the exhaust ring.

Preferably, the exhaust grooves correspond to the exhaust rings in position one to one, and the sizes of the exhaust grooves are matched with those of the exhaust rings.

Preferably, the exhaust holes are uniformly formed in the bottom surface of the exhaust groove, the inner bottom of the upper die is of a hollow structure, and the inner bottom cavity of the upper die is communicated with the exhaust holes.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the injection mold with the exhaust mechanism for the glasses lens can directly polish the lens before demolding, so that the lens is smooth and bright without burrs, the hand is prevented from being scratched in the demolding process, the processing processes of secondary polishing and fine polishing of the lens after demolding are also avoided, and meanwhile, during injection molding, bubbles reserved in the raw material can be effectively expelled in time, and the production quality of the lens is ensured;

2. the injection mold for the spectacle lens with the exhaust mechanism is provided with the grinding disc, the grinding disc is independently controlled by the rotation of the micro motor to rotate, and in the rotating process, the position can be lifted to be tightly attached to the surface of the spectacle lens, and the rotation can be kept to perform uniform grinding and deburring treatment on the spectacle lens;

3. this injection mold for eyeglass with exhaust mechanism is provided with the exhaust circle, and the exhaust circle is inside loose porous, and the hole is little, only can pass through the air and can not pass through thick mould material, can derive the gas in the mould material in the exhaust duct in the mould to in the interior cavity structure of mould is gone into by the exhaust hole temporarily, realize good exhaust.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the installation structure of the sanding plate of the present invention;

fig. 3 is a schematic view of the upper die structure of the present invention.

In the figure: 1. a lower die; 2. a base; 3. a die cavity; 4. a sanding disc; 5. a threaded sleeve; 6. a screw; 7. a micro-motor; 8. an exhaust ring; 9. a flow channel; 10. pouring a tube; 11. an upper die; 12. a pouring hole; 13. an exhaust groove; 14. an exhaust hole; 15. and (5) a mold core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an injection mold for a spectacle lens with an exhaust mechanism comprises a lower mold 1 and an upper mold 11, wherein a base 2 is installed below the lower mold 1, mold cavities 3 are uniformly formed in the upper surface of the lower mold 1, a grinding disc 4 is installed at the bottom of each mold cavity 3, a screw sleeve 5 is fixed at the center of the lower portion of each grinding disc 4, a screw rod 6 penetrates through the screw sleeve 5, a micro motor 7 is connected to the bottom end of each screw rod 6, the micro motor 7 is arranged inside the base 2, the outer diameter of each grinding disc 4 is larger than the inner diameter of each mold cavity 3, each grinding disc 4 is of an arc top sheet structure, each grinding disc 4 is arranged at the bottom of each mold cavity 3 and can be in direct contact with the lens in each mold cavity 3, each grinding disc 4 is clamped at the bottom of each mold cavity 3, the position of each grinding disc is determined, and the grinding repair and processing with good stability can be carried out on the lens, the grinding disc 4 is vertically welded with the threaded sleeve 5, the threaded sleeve 5 is matched with the threaded rod 6 in thread size, the threaded sleeve 5 at the bottom of the grinding disc 4 is spirally assembled at the top end of the threaded rod 6, can rotate along with the rotation of the threaded rod 6 and can move up and down to adjust the position height of the grinding disc 4, so that the grinding disc 4 can be tightly attached to a lens to grind and repair the lens, burrs on the bottom surface of the lens can be removed, meanwhile, the grinding disc 4 adopts a sheet-shaped structure with an arc top, is upwards arc-shaped and is more convex when being jacked up so as to be in close contact with the lens, and the lens is ground and repaired to remove redundant burrs of the lens, so that the lens is cleaner and smoother, and the quality of the lens is improved;

an exhaust ring 8 is fixed above the die cavity 3, the inner diameters of the exhaust ring 8 and the die cavity 3 are equal, and the inner part of the exhaust ring 8 is evenly provided with fine holes, the exhaust ring 8 protrudes out of the upper surface of the lower die 1 and can be matched and connected with the upper die 11, the inner part of the exhaust ring 8 is loose and porous, the pores are small, used for passing through the air contained in the die material, and can not pass through the thick die material due to small self-pores, thereby ensuring smooth exhaust, a flow passage 9 is arranged between the die cavity 3 and the center of the upper surface of the lower die 1, and the middle part where the runners 9 meet is connected with a pouring tube 10, an upper die 11 is arranged above the lower die 1, and a pouring hole 12 vertically penetrates through the center of the inner part of the upper die 11, exhaust grooves 13 are uniformly arranged on the lower surface of the upper die 11, and the bottom surface of the exhaust groove 13 is penetrated with exhaust holes 14, the exhaust grooves 13 are in one-to-one correspondence with the exhaust rings 8, the sizes of the exhaust groove 13 and the exhaust ring 8 are matched, the exhaust groove and the exhaust ring can be normally matched and well matched, the good die closing operation between the upper die 11 and the lower die 1 is ensured, meanwhile, the exhaust ring 8 is matched in the exhaust groove 13 and can contain and guide exhausted gas, the exhaust holes 14 are uniformly arranged on the groove bottom surface of the exhaust groove 13, the inner bottom of the upper die 11 is of a hollow structure, the cavity at the bottom in the upper die 11 is communicated with the exhaust hole 14, the bottom in the upper die 11 is hollow, the air is contained in the air-discharging device, a cavity at the bottom in the upper die 11 is communicated with an air discharging hole 14, the air discharging hole 14 is communicated with an air discharging groove 13, an air discharging ring 8 is arranged in the air discharging groove 13, air entering the exhaust ring 8 can enter the bottom cavity in the upper die 11 through the exhaust grooves 13 and the exhaust holes 14, thus, the exhaust process is realized, and the mold core 15 is fixed at the center of the inner side of the exhaust groove 13.

The working principle is as follows: firstly, aligning and assembling an upper die 11 and a lower die 1, tightly screwing the upper die and the lower die to form a seam, injecting a mold material into the die through a pouring pipe 10 in a pouring hole 12, respectively guiding the mold material into each runner 9 through the pouring pipe 10, respectively guiding the mold material into each die groove 3 through the runner 9, along with the continuous injection of the mold material, leading more and more mold material into each die groove 3 and increasing pressure, leading air in the mold material in each die groove 3 into fine pores in an exhaust ring 8 under the extrusion action, leading the discharged air into an exhaust groove 13 at the bottom of the upper die 11 through a loose porous structure of the exhaust ring 8, leading the discharged air into a cavity at the bottom of the upper die 11 under the action of an exhaust hole 14, and finally leading the discharged small amount of air existing in the mold material before molding to be discharged well, then standing the die, after the mold material is cooled in the die grooves 3 to be molded into lenses, starting each micro motor 7, controlling a screw sleeve 6, driving each screw sleeve 5 to rotate, and grinding each lens to be conveniently and grinding each lower die disc 4 to be attached to grind the lenses.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an injection mold for glasses lens with exhaust mechanism, includes lower mould (1) and last mould (11), its characterized in that: base (2) are installed to the below of lower mould (1), and the upper surface of lower mould (1) evenly is provided with die cavity (3), dull polish dish (4) are all installed to the bottom of die cavity (3), and the below center of dull polish dish (4) is fixed with swivel nut (5), screw rod (6) have been run through to the inside of swivel nut (5), and the bottom of screw rod (6) is connected with micro motor (7), micro motor (7) are settled in the inside of base (2), the top of die cavity (3) all is fixed with air discharge ring (8), be provided with runner (9) between the upper surface center of die cavity (3) and lower mould (1), and the middle part that just runner (9) intersect is connected with pouring tube (10), it sets up in the top of lower mould (1) to go up mould (11), and the vertical through of the inside center of going up mould (11) has pouring hole (12), the lower surface of going up mould (11) evenly is provided with air discharge groove (13), and the face of air discharge groove (13) all runs through has fixed exhaust hole (14), the inboard of mold core (15) has all to run through.

2. An injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: the outer diameter of the sanding disc (4) is larger than the inner diameter of the die cavity (3), and the sanding disc (4) is of an arc top plate structure.

3. An injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: the grinding disc (4) and the threaded sleeve (5) are vertically welded, and the threaded sleeve (5) is matched with the threaded rod (6) in thread size.

4. The injection mold for an eyeglass lens having an air vent mechanism according to claim 1, wherein: the inner diameter size between the exhaust ring (8) and the die cavity (3) is equal, and fine holes are uniformly formed in the exhaust ring (8).

5. An injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: the exhaust grooves (13) are in one-to-one correspondence with the exhaust rings (8), and the sizes of the exhaust grooves (13) are consistent with those of the exhaust rings (8).

6. An injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: the exhaust holes (14) are uniformly formed in the bottom surface of the exhaust groove (13), the inner bottom of the upper die (11) is of a hollow structure, and the inner bottom cavity of the upper die (11) is communicated with the exhaust holes (14) in a homogeneous mode.