CN217373254U

CN217373254U - Mold for moving half-frame glasses

Info

Publication number: CN217373254U
Application number: CN202220794030.4U
Authority: CN
Inventors: 叶伟照; 廖芳富; 杨绿萍
Original assignee: Xiamen Hongtianxiang Technology Development Co ltd
Current assignee: Xiamen Hongtianxiang Technology Development Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-09-06
Anticipated expiration: 2032-04-07

Abstract

The application discloses a mold for a pair of sports half-frame glasses, which relates to the technical field of injection molding grinding tools and comprises an upper mold base and a lower mold base; a die cavity is formed between the upper die holder and the lower die holder, the die cavity is integrally of an arc-shaped structure, and the middle part of the die cavity is arched towards the upper die holder; the lower die holder is provided with a first module, a second module and a third module; a first driving piece for driving the second module to be inserted into or moved out of the die cavity is arranged on the lower die base, and the first driving piece is connected with a first linkage piece and a second linkage piece; the first driving piece is used for driving the two second modules to be separated from or inserted into the die cavity; the first linkage piece is used for driving the two first modules to move along with the first driving piece and driving the first barb part to rotate into or separate from the die cavity; the second linkage part is used for driving the two third modules to move along with the first driving part and driving the second barb part to rotate into or separate from the die cavity. This application can be convenient for the drawing of patterns, improves production efficiency.

Description

Mold for moving half-frame glasses

Technical Field

The application relates to the technical field of injection molds, in particular to a mold for moving half-frame glasses.

Background

At present, partial sports glasses adopt a half-frame structure, lenses are directly embedded on an arc-shaped half frame, and the lower parts of the lenses are exposed, so that the glasses can better wrap eyes, and a better windproof effect is achieved. Consequently, can be provided with the caulking groove of barb structure on the picture frame for inlay and establish the installation lens, to traditional mould, the caulking groove of barb structure on its picture frame is after injection moulding, and the drawing of patterns process is comparatively loaded down with trivial details, has reduced production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mould for moving half frame glasses, it is loaded down with trivial details in order to solve drawing of patterns process, reduces production efficiency's problem. The following technical scheme is adopted:

a mould for moving half-frame glasses comprises an upper mould base and a lower mould base; a die cavity is formed between the upper die holder and the lower die holder, the whole die cavity is of an arc-shaped structure, and the middle part of the die cavity is arched towards the upper die holder; the lower die holder is provided with a first module, a second module and a third module;

the first module, the second module and the third module are symmetrically distributed on the central plane of the lower die holder, and the first module, the second module and the third module are sequentially arranged from the middle part of the die cavity to the end part of the die cavity; the same ends of the first module, the second module and the third module extend into the die cavity;

a first barb part facing the center line of the die cavity is arranged at the part of the first die block extending into the die cavity, and a second barb part facing away from the center line of the die cavity is arranged at the part of the third die block extending into the die cavity;

the lower die base is provided with a first driving piece for driving the second module to be inserted into or moved out of the die cavity, and the first driving piece is connected with a first linkage piece and a second linkage piece; the first driving piece is used for driving the two second modules to be separated from or inserted into the die cavity; the first linkage piece is used for driving the two first modules to move along with the first driving piece and driving the first barb part to rotate into or separate from the die cavity; the second linkage part is used for driving the two third modules to move along with the first driving part and driving the second barb part to rotate into or separate from the die cavity.

Optionally, the first driving member includes two first driving blocks symmetrically distributed on the central plane of the lower die holder, the first driving blocks slide on the lower die holder, and the moving direction of the first driving blocks is parallel to the central plane of the lower die holder; the first driving block is correspondingly connected to the second module.

Optionally, the first linkage piece includes a first driven block and a first linkage rod, and one ends of the two first modules, which are far away from the mold cavity, are both rotatably connected to the first driven block; the first linkage rod is fixed on the first driving block;

the lower die holder is provided with first guide convex blocks, first guide surfaces are symmetrically arranged on two sides of each first guide convex block, two first modules are symmetrically distributed on two sides of each first guide convex block, a first matching surface for being attached to the first guide surfaces is arranged on each first module, so that the first modules move away from the die cavity along with the first driven blocks, and rotate around the connecting points of the first modules and the first driven blocks along the first guide surfaces, and the first barb parts are separated from the die cavity;

when the first module and the second module are mutually abutted, the abutted surface between the first module and the second module is inclined from the end part of the die cavity to the middle part of the die cavity; a delay piece is arranged between the first driven block and the first driving block, so that the first driving block moves before the first driven block, the binding surfaces between the first module and the second module are separated in a staggered mode, and the first module smoothly rotates for a certain angle around the connection point of the first module and the first driven block;

the first linkage rod is fixed on the first driving block, the first module is provided with a yielding groove, and when the end part of the first module is positioned in the cavity of the module, the length direction of the yielding groove is the same as the moving direction of the first driven block; the first linkage rod is movably inserted into the abdicating groove, and a rotating groove extends from one side of the abdicating groove, which is far away from the die cavity; the first module rotates the in-process towards the second module, and first gangbar removes to rotating the inslot from the groove of stepping down, first module deviates from the second module and rotates the in-process, and first gangbar removes to the inslot of stepping down from rotating the inslot.

Optionally, the delay element includes a connecting block and a connecting bar, the connecting block is connected between the two first driving blocks, and the connecting bar is disposed on the first driven block; the connecting block has seted up the spread groove towards one side of connecting strip, the connecting strip joint is in the spread groove, the length of spread groove along first driven block moving direction is greater than the length of connecting strip along this direction.

Optionally, a first positioning bump is arranged on the first module, the cross section of the first positioning bump is gradually reduced from the lower die holder to the upper die holder, and the upper die holder is correspondingly provided with a first positioning groove for the first positioning bump to be clamped in.

Optionally, the second linkage member includes a second linkage rod, and the second linkage rod is fixed to the first driving block; the third module is erected on the first driving block and is provided with a driving groove for inserting the second linkage rod; when the end part of the third module is positioned in the die cavity, the length direction of the driving groove is the same as the moving direction of the second module; a second guide lug is arranged on the lower die base and is positioned on one side, far away from the second module, of the third module; the second guide convex block is provided with a second guide surface, and the third module is provided with a second matching surface which is used for being attached to the second guide surface;

inclined surfaces which are mutually attached are arranged between the second module and the third module, so that the third module smoothly rotates towards the second module;

when the second linkage piece drives the third module to move away from the die cavity, the second matching surface moves along the second guide surface so as to drive the second barb part to rotate towards the second module and separate from the die cavity;

when the second linkage piece drives the third module to move towards the die cavity, the second matching surface moves along the second guide surface so as to drive the second barb part to deviate from the second module to rotate and be inserted into the die cavity.

Optionally, a second positioning bump is arranged on the third module, the cross section of the second positioning bump is gradually reduced from the lower die holder to the upper die holder, and a second positioning groove for the second positioning bump to be clamped in is correspondingly formed in the upper die holder.

Optionally, an injection molding channel is formed in one side wall, facing the upper die holder, of the first guide projection, and the injection molding channel is communicated with the die cavity.

Optionally, one end of the injection channel, which is communicated with the mold cavity, is deviated from the center line of the mold cavity.

Optionally, the lower die holder is provided with a protruding matching protrusion, and the upper die holder is correspondingly provided with a matching groove for the matching protrusion to be embedded into.

To sum up, the present application includes the following beneficial effects:

1. in the demolding process, the first module rotates along the first guide surface along with the movement of the first driven block through the matching of the first driving piece, the first linkage piece and the second linkage piece, so that the first barb part rotates towards the second module and is separated from the mold cavity; meanwhile, the second module is driven by the second linkage rod to rotate towards the second module along the second guide surface, so that the second barb part rotates to be separated from the die cavity; the whole demoulding process is simple and convenient, and the working efficiency is effectively improved;

2. the first module is provided with a first positioning lug, and the third module is provided with a second positioning lug, so that the first module and the second module can be accurately positioned when the die is closed;

3. one end of the injection molding channel communicated with the mold cavity deviates from the center line of the mold cavity, so that the condition that the product is easy to break due to the injection stress at the middle position of the product is avoided.

Drawings

FIG. 1 is an exploded view of the mold and product of the present embodiment;

FIG. 2 is a schematic view of the lower die holder of this embodiment;

FIG. 3 is an exploded view of the lower die holder of this embodiment;

FIG. 4 is a schematic structural view of the lower die holder in the present embodiment;

FIG. 5 is a schematic view of another perspective of the lower die holder of this embodiment;

FIG. 6 is an exploded view of the connecting block and the first driving block in the present embodiment;

FIG. 7 is a side view of the lower die holder, the first die block, the second die block, and the third die block in this embodiment;

description of reference numerals: 1. an upper die holder; 2. a lower die holder; 21. a first guide projection; 211. a first guide surface; 212. injection molding a channel; 22. a second guide projection; 221. a second guide surface; 23. fitting the projection; 3. a first module; 31. a first barb portion; 32. a first mating surface; 33. a yielding groove; 34. a rotating groove; 35. a first positioning bump; 4. a second module; 5. a third module; 51. a second barb portion; 52. a drive slot; 53. a second mating surface; 54. a second positioning bump; 6. a first driving block; 61. connecting blocks; 611. Connecting grooves; 7. a first linkage member; 71. a first follower block; 711. a connecting strip; 712. a driven lever; 72. A first linkage rod; 8. a second linkage rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a mold for moving half-frame glasses. The die comprises an upper die holder 1 and a lower die holder 2, a die cavity is formed between the upper die holder 1 and the lower die holder 2, the die cavity is integrally of an arc-shaped structure, and the middle of the die cavity is arched towards the upper die holder 1. The lower die holder 2 is movably provided with a first die block 3, a second die block 4 and a third die block 5.

The first module 3, the second module 4 and the third module 5 are symmetrically distributed on the central plane of the lower die holder 2, and the first module 3, the second module 4 and the third module 5 are sequentially arranged from the middle part of the die cavity to the end part of the die cavity. The same ends of the first module 3, the second module 4 and the third module 5 extend into the die cavity for forming the mirror frame structure.

The part of the first module 3 extending into the die cavity is provided with a first barb part 31 facing the center line of the die cavity, and the part of the third module 5 extending into the die cavity is provided with a second barb part 51 facing away from the center line of the die cavity.

The lower die holder 2 is provided with a first driving piece for driving the second die block 4 to be inserted into or moved out of the die cavity, and the first driving piece is connected with a first linkage piece 7 and a second linkage piece; the first driving member is used for driving the two second modules 4 to be separated from or inserted into the mold cavity. The first linkage member 7 is used for driving the two first modules 3 to move along with the first driving member and driving the first barb portion 31 to rotate into or separate from the mold cavity. The second linkage member is used for driving the two third modules 5 to move along with the first driving member and driving the second barb part 51 to rotate into or separate from the mold cavity.

The first driving piece comprises two first driving blocks 6 which are symmetrically distributed on the central plane of the lower die holder 2, the first driving blocks 6 slide on the lower die holder 2, and the moving direction of the first driving blocks 6 is parallel to the central plane of the lower die holder 2; the first driving block 6 is correspondingly connected to the second module 4.

The first linkage member 7 comprises a first driven block 71 and a first linkage rod 72, and one ends of the two first modules 3 far away from the mold cavity are rotatably connected to the first driven block 71. The first linkage rod 72 is fixed to the first drive block 6. The lower die holder 2 is provided with a first guiding convex block 21, the first guiding convex block 21 is gradually reduced towards the die cavity, two sides of the first guiding convex block 21 are symmetrically provided with first guiding surfaces 211, and the two first modules 3 are symmetrically distributed on two sides of the first guiding convex block 21. The first module 3 is provided with a first matching surface 32 for matching with the first guide surface 211, so that when the first module 3 moves away from the die cavity along with the first driven block 71, the first module 3 rotates around the connection point of the first module 3 and the first driven block 71 along the first guide surface 211, so that the first barb 31 rotates towards the second module 4 and is separated from the die cavity.

A time delay piece is arranged between the first driven block 71 and the first driving blocks 6, the time delay piece comprises a connecting block 61 and a connecting strip 711, the connecting block 61 is connected between the two first driving blocks 6, and the connecting strip 711 is integrally connected to the first driven block 71. The connecting block 61 is provided with a connecting groove 611 on a side wall facing the connecting bar 711, the connecting bar 711 is clamped in the connecting groove 611, and the length of the connecting groove 611 along the moving direction of the first driven block 71 is greater than the length of the connecting bar 711 along the direction.

When the first module 3 and the second module 4 are abutted against each other, the abutting surface between the two is inclined from the end part of the die cavity to the middle part of the die cavity, so that the first driving block 6 moves a certain distance before the first driven block 71, and the abutting surface between the two is obviously staggered, so that the first module 3 can smoothly rotate a certain angle around the connecting point of the first driving block and the first driven block 71, and does not interfere with the second module 4.

The first linkage rod 72 is fixed on the first driving block 6, the first module 3 is provided with an abdicating groove 33, when the end part of the first module 3 is inserted into the die cavity, the length direction of the abdicating groove 33 is the same as the moving direction of the first driven block 71, the first linkage rod 72 is movably inserted into the abdicating groove 33, and one side of the abdicating groove 33 away from the die cavity extends to form a rotating groove 34; during demolding, in the process that the first module 3 rotates towards the second module 4, the first linkage rod 72 moves from the abdicating groove 33 to the rotating groove 34; when the mold is closed, the first linkage rod 72 moves from the rotating groove 34 to the receding groove 33 in the process of rotating the first module 3 away from the second module 4. It should be noted that the diameter of the first linkage rod 72 can be selected to be smaller than the widths of the receding groove 33 and the rotating groove 34, so as to ensure that the first linkage rod 72 smoothly moves in the receding groove 33 and the rotating groove 34 during the rotation of the first module 3.

In this embodiment, since the wall of the half frame of the glasses has a certain inclination, the first module 3, the second module 4, and the third module 5 are inserted into the cavity in an inclined manner. Therefore, the side wall of the first driving block 6 away from the upper die holder 1 is inclined downwards from one end close to the die cavity to one end away from the die cavity. During demolding, the first driving block 6 drives the second mold block 4 to move obliquely downwards so as to enable the second mold block to be smoothly separated from the product which is injected in the mold cavity.

A driven rod 712 is fixed on the first driven block 71 corresponding to the first module 3, the end of the first module 3 is rotatably sleeved on the driven rod 712, and the first module 3 can move axially along the driven rod 712. The first follower block 71 slides horizontally. One side of the first module 3, which is far away from the driven rod 712, abuts against the first driving block 6, so that when the first module 3 is demolded, along with the inclined motion of the first driving block 6, the first module 3 is driven to be sleeved on the end portion of the driven rod 712 and move from the upper end of the driven rod 712 to the lower end of the driven rod 712, and the first module 3 moves vertically, which is beneficial for smooth demolding.

The second linkage member comprises a second linkage rod 8. The second linkage rod 8 is fixed on the first driving block 6, the third module 5 is arranged on the first driving block 6 in an overlapping mode, and the third module 5 is provided with a driving groove 52 for the second linkage rod 8 to be inserted into. When the end of the third block 5 is positioned in the cavity, the longitudinal direction of the driving groove 52 is the same as the moving direction of the second block 4. The lower die holder 2 is provided with a second guiding convex block 22, the second guiding convex block 22 is positioned on one side of the third die block 5 far away from the second die block 4, the second guiding convex block 22 is provided with a second guiding surface 221, and the third die block 5 is provided with a second matching surface 53 for being attached to the second guiding surface 221.

Set up to the inclined plane of laminating each other between the lateral wall of laminating each other of second module 4 and third module 5, under the direction cooperation on inclined plane to make third module 5 rotate towards second module 4 smoothly and realize the drawing of patterns, and can improve its position accuracy of inserting the die cavity when making 5 tip of third module insert the die cavity.

When the second linkage member drives the third mold block 5 to move away from the mold cavity, the second mating surface 53 moves along the second guiding surface 221, so as to drive the second barb 51 to rotate towards the second mold block 4 and disengage from the mold cavity. When the second linkage member drives the third mold block 5 to move toward the mold cavity, the second mating surface 53 moves along the second guiding surface 221, so as to drive the second barb 51 to rotate away from the second mold block 4 and insert into the mold cavity.

Further, in order to improve the accuracy of the first mold block 3 when inserted into the mold cavity, a first positioning protrusion 35 is disposed on a side wall of the first mold block 3 facing the upper mold base 1, and a cross section of the first positioning protrusion 35 is gradually reduced from the lower mold base 2 to the upper mold base 1. The upper die holder 1 is correspondingly provided with a first positioning groove for the first positioning bump 35 to be clamped in. The third module 5 is provided with a second positioning bump 54 towards the side wall of the upper die holder 1, the cross section of the second positioning bump 54 is gradually reduced from the lower die holder 2 towards the upper die holder 1, and the upper die holder 1 is correspondingly provided with a second positioning groove for clamping the second positioning bump 54. The lower die holder 2 has a matching lug 23 protruding from both sides of the die cavity in the length direction, and the upper die holder 1 is correspondingly provided with a matching groove for embedding the matching lug 23.

An injection molding channel 212 is formed on a side wall of the first guide protrusion 21 facing the upper die holder 1, and the injection molding channel 212 is communicated with the die cavity. The upper die holder 1 is provided with an injection molding hole which is communicated with the injection molding channel 212. The lower die bed 2 is provided with ejector pins which are located below the injection molding channel 212. One end of the injection molding channel 212 communicated with the mold cavity deviates from the center line of the mold cavity, so that the condition that the product is easy to break due to the injection stress in the middle of the product is avoided. The injection passage 212 communicates with the cavity and is located below a position where the two first mold blocks 3 abut against each other.

During the demolding process, the first module 3 rotates along the first guide surface 211 along with the movement of the first driven piece 71 through the cooperation of the first driving piece, the first linkage piece 7 and the second linkage piece, so that the first barb portion 31 rotates towards the second module 4 and is separated from the mold cavity. Meanwhile, the second module 4 is driven by the second linkage rod 8 and rotates towards the second module 4 along the second guide surface 221, so that the second barb part 51 rotates to be separated from the mold cavity; the whole demolding process is simple and convenient, and the working efficiency is effectively improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A mold for a pair of sports half-frame eyeglasses, comprising: comprises an upper die holder and a lower die holder; a die cavity is formed between the upper die holder and the lower die holder, the whole die cavity is of an arc-shaped structure, and the middle part of the die cavity is arched towards the upper die holder; the lower die holder is provided with a first module, a second module and a third module;

the lower die base is provided with a first driving piece for driving the second module to be inserted into or moved out of the die cavity, and the first driving piece is connected with a first linkage piece and a second linkage piece; the first driving piece is used for driving the two second modules to be separated from or inserted into the die cavity; the first linkage piece is used for driving the two first modules to move along with the first driving piece and driving the first barb part to rotate to enter or separate from the die cavity; the second linkage part is used for driving the two third modules to move along with the first driving part and driving the second barb part to rotate into or separate from the die cavity.

2. A mold for a sports half-rimmed spectacle, as claimed in claim 1, wherein: the first driving piece comprises two first driving blocks which are symmetrically distributed on the central plane of the lower die holder, the first driving blocks slide on the lower die holder, and the moving direction of the first driving blocks is parallel to the central plane of the lower die holder; the first driving block is correspondingly connected to the second module.

3. A mold for a sports half-rimmed spectacle, as claimed in claim 2, wherein: the first linkage piece comprises a first driven block and a first linkage rod, and one ends of the two first modules, which are far away from the die cavity, are rotatably connected to the first driven block; the first linkage rod is fixed on the first driving block;

4. A mold for a sports half-rimmed spectacle, as claimed in claim 3, wherein: the time delay piece comprises a connecting block and a connecting strip, the connecting block is connected between the two first driving blocks, and the connecting strip is arranged on the first driven block; the connecting block has seted up the spread groove towards one side of connecting strip, the connecting strip joint is in the spread groove, the length of spread groove along first driven block moving direction is greater than the length of connecting strip along this direction.

5. A mold for a sports half-rimmed spectacle, as claimed in claim 1, wherein: the first module is provided with a first positioning lug, the cross section of the first positioning lug is gradually reduced from the lower die holder to the upper die holder, and the upper die holder is correspondingly provided with a first positioning groove for the first positioning lug to be clamped in.

6. A mold for a sports half-rimmed spectacle, as claimed in claim 2, wherein: the second linkage piece comprises a second linkage rod, and the second linkage rod is fixed on the first driving block; the third module is erected on the first driving block and is provided with a driving groove for inserting the second linkage rod; when the end part of the third module is positioned in the die cavity, the length direction of the driving groove is the same as the moving direction of the second module; a second guide lug is arranged on the lower die base and is positioned on one side of the third module, which is far away from the second module; the second guide convex block is provided with a second guide surface, and the third module is provided with a second matching surface which is used for being attached to the second guide surface;

when the second linkage member drives the third module to move towards the die cavity, the second matching surface moves along the second guide surface so as to drive the second barb part to deviate from the second module to rotate and be inserted into the die cavity.

7. A mold for a sports half-rimmed eyeglass, as claimed in claim 1, wherein: the third module is provided with a second positioning lug, the cross section of the second positioning lug is gradually reduced from the lower die holder to the upper die holder, and the upper die holder is correspondingly provided with a second positioning groove for the second positioning lug to be clamped in.

8. A mold for a sports half-rimmed spectacle, as claimed in claim 3, wherein: an injection molding channel is formed in one side wall, facing the upper die base, of the first guide protruding block, and the injection molding channel is communicated with the die cavity.

9. A mold for a sports half-rimmed spectacle, as claimed in claim 8, wherein: and one end of the injection molding channel, which is communicated with the mold cavity, deviates from the center line of the mold cavity.

10. A mold for a sports half-rimmed spectacle, as claimed in claim 9, wherein: the upper die base is provided with a protruding matching lug, and the upper die base is correspondingly provided with a matching groove for the matching lug to be embedded into.