CN216400449U

CN216400449U - Optical mold with positioning function for processing optical lens

Info

Publication number: CN216400449U
Application number: CN202122756024.8U
Authority: CN
Inventors: 韩汶栩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-29
Anticipated expiration: 2031-11-11

Abstract

The utility model relates to an optical mould with a positioning function for processing an optical lens, which comprises a base with a hollow structure, wherein a thickness adjusting mechanism is arranged in the base; this optical mold for processing of optical lens with locate function is through the locating lever etc. that are equipped with: when the upper die holder and the lower die holder are assembled, the positioning rod is inserted into the positioning hole, the positioning block is inserted into the positioning groove, and the positioning block is locked in the positioning groove by rotating the fixing bolt, so that the positioning and limiting effects can be achieved for the assembly of the upper die holder and the lower die holder, and the assembly accuracy of the upper die holder and the lower die holder is improved; this optical mold for optical lens processing with locate function is through the thickness adjustment mechanism who is equipped with: the output shaft of motor drives the threaded rod and rotates promptly, can drive the lower die holder slight motion from top to bottom, can change the degree of depth of die cavity down through the cooperation between cushion and the lower die cavity, and then be convenient for change optical lens's thickness.

Description

Optical mold with positioning function for processing optical lens

Technical Field

The utility model relates to the technical field of optical lens processing, in particular to an optical mold with a positioning function for optical lens processing.

Background

The optical glass is made of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides according to a specific formula; at present, part of optical lenses are processed by adopting an injection molding mode; in the prior art, the following problems exist when processing optical lenses using injection molding: on one hand, when an upper die and a lower die of the existing die are matched, the positioning is only carried out through a positioning rod, the positioning accuracy is not high, and the high-precision processing requirement cannot be met; on the other hand, when the existing mold is used for producing an optical lens, the production thickness of the lens is difficult to change, and the processing requirement cannot be met.

Disclosure of Invention

The present invention is directed to an optical mold for processing an optical lens with a positioning function, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

an optical die with a positioning function for processing an optical lens comprises a base with a hollow structure, wherein a thickness adjusting mechanism is arranged in the base, a lower die holder is arranged above the base, and an upper die holder is arranged above the lower die holder; thickness adjustment mechanism includes two symmetrical belt pulleys, two be equipped with the belt between the belt pulley, one of them coaxial inseparable welding has the transmission shaft on the belt pulley, another coaxial inseparable welding has the threaded rod on the belt pulley, the top of threaded rod is passed the base and is rotated and be connected with the slider, the top surface of slider has the cushion closely welded, the top surface of base passes through bolt fastening fixedly connected with motor, the output shaft and the coaxial inseparable welding of transmission shaft of motor.

According to the preferable technical scheme, the center of the lower die base is provided with a sliding cavity, the bottom surface of the lower die base is positioned below the sliding cavity and is provided with a thread groove, the threaded rod is in threaded connection with the thread groove, the sliding block is in sliding connection with the sliding cavity, the center of the top surface of the lower die base is tightly welded with a lower male die, the lower male die is provided with a lower die cavity communicated with the sliding cavity, and the cushion block extends into the lower die cavity.

As a preferred technical scheme, an upper male die is tightly welded at the center of the bottom surface of the upper die holder, an upper die cavity is formed in the upper male die, positioning holes are formed in the four corners of the upper die holder, positioning blocks are tightly welded at the positions, located on the two sides, of the bottom surface of the upper die holder, and jacks are formed in the outer walls of the positioning blocks.

According to the preferable technical scheme, the four corners of the top surface of the lower die base are tightly welded with positioning rods, the positioning rods penetrate through the corresponding positioning holes and are in sliding connection with the positioning holes, positioning grooves are formed in the two sides of the top surface of the lower die base, the positioning blocks are in plug-in fit with the positioning grooves, fixing bolts are in threaded connection with the two side walls of the lower die base, and the tail ends of the fixing bolts are in plug-in fit with the corresponding insertion holes.

As a preferable technical scheme of the utility model, the size of the cushion block is matched with the size of the lower die cavity.

As a preferable technical scheme, guide rods are tightly welded at four corners of the top surface of the base, guide holes are formed at four corners of the bottom surface of the lower die base, and the guide rods are in sliding connection with the corresponding guide holes.

As a preferable technical scheme of the utility model, the lower die cavity and the upper die cavity are positioned on the same vertical plane.

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

1. this optical mold for processing of optical lens with locate function is through the locating lever etc. that are equipped with: when the upper die holder and the lower die holder are assembled, the positioning rod is inserted into the positioning hole, the positioning block is inserted into the positioning groove, and the positioning block is locked in the positioning groove by rotating the fixing bolt, so that the positioning and limiting effects can be achieved for the assembly of the upper die holder and the lower die holder, and the assembly accuracy of the upper die holder and the lower die holder is improved;

2. this optical mold for optical lens processing with locate function is through the thickness adjustment mechanism who is equipped with: the output shaft of motor drives the belt pulley and rotates promptly, and the threaded rod rotates in step promptly, along with the rotation of threaded rod, can drive the slight motion from top to bottom of die holder, along with the motion of die holder, can be through the degree of depth of die cavity under the cooperation change between cushion and the lower die cavity, and then be convenient for change optical lens's thickness.

Drawings

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

FIG. 2 is a partial sectional view of the present invention;

FIG. 3 is a sectional view of the lower die holder according to the present invention;

FIG. 4 is a schematic structural view of an upper mold base according to the present invention;

FIG. 5 is a schematic structural view of a thickness adjusting mechanism according to the present invention;

fig. 6 is a schematic structural diagram of the present invention.

In the figure:

1. a base; 11. a guide bar;

2. a lower die holder; 21. a slide chamber; 211. a thread groove; 22. a lower male die; 221. a lower die cavity; 23. positioning a groove; 24. fixing the bolt; 25. positioning a rod; 26. a guide hole;

3. an upper die holder; 31. an upper male die; 311. an upper mold cavity; 32. positioning holes; 33. positioning blocks; 331. a jack;

4. a thickness adjusting mechanism; 41. a belt pulley; 42. a belt; 43. a drive shaft; 44. a threaded rod; 45. a slider; 46. cushion blocks; 47. a motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The embodiment provides a technical scheme:

referring to fig. 1, 2, 3, 4 and 6, an optical mold for processing an optical lens with a positioning function includes a base 1 having a hollow structure, a lower mold base 2 disposed above the base 1, and an upper mold base 3 disposed above the lower mold base 2. The center of the lower die holder 2 is provided with a sliding cavity 21, the bottom surface of the lower die holder 2 below the sliding cavity 21 is provided with a thread groove 211, a threaded rod 44 is in threaded connection with the thread groove 211, a sliding block 45 is in sliding connection with the sliding cavity 21, the center of the top surface of the lower die holder 2 is tightly welded with a lower male die 22, the lower male die 22 is provided with a lower die cavity 221 communicated with the sliding cavity 21, and a cushion block 46 extends into the lower die cavity 221; an upper male die 31 is tightly welded at the center of the bottom surface of the upper die holder 3, an upper die cavity 311 is formed in the upper male die 31, positioning holes 32 are formed in the four corners of the upper die holder 3, positioning blocks 33 are tightly welded at the two sides of the bottom surface of the upper die holder 3, and insertion holes 331 are formed in the outer walls of the positioning blocks 33; locating rods 25 are welded at four corners of the top surface of the lower die holder 2 tightly, the locating rods 25 penetrate through the corresponding locating holes 32 and are in sliding connection with the locating holes 32, locating grooves 23 are formed in the positions, located on two sides, of the top surface of the lower die holder 2, locating blocks 33 are in plug-in fit with the locating grooves 23, fixing bolts 24 are connected to two side walls of the lower die holder 2 in a threaded mode, and the tail ends of the fixing bolts 24 are in plug-in fit with corresponding inserting holes 331.

In this embodiment, the guide rods 11 are all tightly welded at four corners of the top surface of the base 1, the guide holes 26 are all formed at four corners of the bottom surface of the lower die base 2, the guide rods 11 are slidably connected with the corresponding guide holes 26, the guide rods 11 and the guide holes 26 are arranged to guide the up-and-down movement of the lower die base 2, the depth of the lower die cavity 221 is conveniently adjusted, and the thickness of the optical lens is conveniently adjusted.

In the present embodiment, the lower mold cavity 221 and the upper mold cavity 311 are located on the same vertical plane, and this design facilitates injection molding between the lower mold cavity 221 and the upper mold cavity 311, which facilitates molding of the optical lens.

Referring to fig. 5, a thickness adjusting mechanism 4 is disposed in the base 1. The thickness adjusting mechanism 4 comprises two symmetrical belt pulleys 41, a belt 42 is arranged between the two belt pulleys 41, a transmission shaft 43 is coaxially and tightly welded on one belt pulley 41, a threaded rod 44 is coaxially and tightly welded on the other belt pulley 41, the top end of the threaded rod 44 penetrates through the base 1 and is rotatably connected with a sliding block 45, a cushion block 46 is tightly welded on the top surface of the sliding block 45, a motor 47 is fixedly connected to the top surface of the base 1 through bolts, and an output shaft of the motor 47 is coaxially and tightly welded with the transmission shaft 43.

In this embodiment, the size of the block 46 is adapted to the size of the lower mold cavity 221, and this design prevents the injection liquid from penetrating the lower mold cavity 221 during injection.

It should be added that the bottom end of the threaded rod 44 and the bottom end of the transmission shaft 43 in this embodiment are rotatably connected to the inner bottom surface of the base 1 through bearings, and this design is convenient for supporting and supporting the threaded rod 44 and the transmission shaft 43 to rotate, so as to ensure the stability of the rotation of the threaded rod 44 and the transmission shaft 43, and further facilitate the adjustment of the height of the lower die holder 2.

It should be noted that, in this embodiment, an injection hole is formed in the center of the upper mold cavity 311, and the injection hole penetrates through the upper mold base 3 and the upper mold 31 and is communicated with the outside, and the injection hole is convenient for injecting injection liquid into the upper mold cavity 311 and the lower mold cavity 221, so as to facilitate molding of the optical lens.

It should be noted that the motor 47 in the present embodiment is conventional in the art, and is not described herein again.

When the die is used specifically, a user firstly inserts the positioning hole 32 in the upper die holder 3 in alignment with the positioning rod 25, the positioning rod 25 slides along the positioning hole 323, meanwhile, the positioning blocks 33 on the two sides are inserted into the corresponding positioning grooves 23, when the upper male die 31 abuts against the lower male die 22, the user rotates the fixing bolts 24 on the two sides, the tail ends of the fixing bolts 24 are inserted into the insertion holes 331, and at the moment, the upper die holder 3 and the lower die holder 2 complete die assembly;

when the thickness of the optical lens needs to be adjusted, a user firstly switches on a power supply of the motor 47, an output shaft of the motor 47 rotates to drive the transmission shaft 43 and one of the belt pulleys 41 to rotate, the other belt pulley 41 and the threaded rod 44 synchronously rotate under the drive of the belt 42, the lower die base 2 moves upwards or downwards due to the threaded connection of the threaded rod 44 and the threaded groove 211, the sliding block 45 moves upwards or downwards in the sliding cavity 21 at the moment, the cushion block 46 moves upwards or downwards in the lower die cavity 221, the depth of the lower die cavity 221 changes along with the movement of the cushion block 46 in the lower die cavity 221, and finally, the user injects injection liquid into the lower die cavity 221 and the upper die cavity 311 through the injection holes, and the molded die can be taken out after the injection liquid is cooled.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an optical mold for optical lens processing with locate function, is including base (1) that is cavity formula structure, its characterized in that: a thickness adjusting mechanism (4) is arranged in the base (1), a lower die holder (2) is arranged above the base (1), and an upper die holder (3) is arranged above the lower die holder (2); thickness adjustment mechanism (4) are including two symmetrical belt pulley (41), two be equipped with belt (42) between belt pulley (41), one of them coaxial inseparable welding has transmission shaft (43), another one coaxial inseparable welding has threaded rod (44) on belt pulley (41), the top of threaded rod (44) is passed base (1) and is rotated and be connected with slider (45), the top surface inseparable welding of slider (45) has cushion (46), bolt fixed connection has motor (47) is passed through to the top surface of base (1), the output shaft and the coaxial inseparable welding of transmission shaft (43) of motor (47).

2. The optical mold for processing an optical lens having a positioning function according to claim 1, wherein: the die is characterized in that a sliding cavity (21) is formed in the center of the lower die holder (2), a thread groove (211) is formed in the position, below the sliding cavity (21), of the bottom surface of the lower die holder (2), the threaded rod (44) is in threaded connection with the thread groove (211), the sliding block (45) is in sliding connection with the sliding cavity (21), a lower male die (22) is tightly welded in the center of the top surface of the lower die holder (2), a lower die cavity (221) communicated with the sliding cavity (21) is formed in the lower male die (22), and the cushion block (46) extends into the lower die cavity (221).

3. The optical mold for processing an optical lens having a positioning function according to claim 2, wherein: the die comprises an upper punch (31) tightly welded at the center of the bottom surface of an upper die base (3), an upper die cavity (311) is formed in the upper punch (31), positioning holes (32) are formed in four corners of the upper die base (3), positioning blocks (33) are tightly welded at positions, located on two sides, of the bottom surface of the upper die base (3), and jacks (331) are formed in the outer wall of the positioning blocks (33).

4. The optical mold for processing an optical lens having a positioning function according to claim 3, wherein: locating levers (25) are welded at four corners of the top surface of the lower die holder (2) tightly, the locating levers (25) penetrate through corresponding locating holes (32) and are in sliding connection with the locating holes (32), locating grooves (23) are formed in positions, located on two sides, of the top surface of the lower die holder (2), locating blocks (33) are in plug-in fit with the locating grooves (23), fixing bolts (24) are connected to two side walls of the lower die holder (2) in a threaded mode, and the tail ends of the fixing bolts (24) are in plug-in fit with corresponding inserting holes (331).

5. The optical mold for processing an optical lens having a positioning function according to claim 2, wherein: the size of the cushion block (46) is matched with that of the lower die cavity (221).

6. The optical mold for processing an optical lens having a positioning function according to claim 1, wherein: guide rods (11) are tightly welded at four corners of the top surface of the base (1), guide holes (26) are formed at four corners of the bottom surface of the lower die base (2), and the guide rods (11) are connected with the corresponding guide holes (26) in a sliding mode.

7. The optical mold for processing an optical lens having a positioning function according to claim 2, wherein: the lower die cavity (221) and the upper die cavity (311) are located on the same vertical plane.