CN112068329A - Glasses leg, mold for injection molding of glasses leg and molding method of glasses leg - Google Patents
Glasses leg, mold for injection molding of glasses leg and molding method of glasses leg Download PDFInfo
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- CN112068329A CN112068329A CN202010860184.4A CN202010860184A CN112068329A CN 112068329 A CN112068329 A CN 112068329A CN 202010860184 A CN202010860184 A CN 202010860184A CN 112068329 A CN112068329 A CN 112068329A
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- 238000000465 moulding Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000011521 glass Substances 0.000 title claims description 42
- 238000001746 injection moulding Methods 0.000 title claims description 38
- 238000007493 shaping process Methods 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 abstract description 12
- 229920003023 plastic Polymers 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 description 4
- 210000001161 mammalian embryo Anatomy 0.000 description 3
- 239000002991 molded plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
- G02C5/14—Side-members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/10—Injection moulding apparatus using moulds or injection units usable in different arrangements or combinations to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1756—Handling of moulds or mould parts, e.g. mould exchanging means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2012/00—Frames
- B29L2012/005—Spectacle frames
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a mirror leg, a mould and forming method for moulding plastics this mirror leg, it includes stereoplasm portion and soft portion, soft portion parcel is on the outer wall of stereoplasm portion, soft portion only inboard is provided with a plurality of and embraces the pinhole, still include the lower mould, first last mould, mould and the conversion machine of moulding plastics on the second, be provided with down the shaping chamber on the lower mould, be provided with the spacing groove on the first mould, the upside and the laminating of spacing groove bottom of stereoplasm portion, the lower half side of stereoplasm portion encloses with lower shaping chamber and closes and form first shaping die cavity, be used for the shaping to be close to the inboard half soft portion of stereoplasm portion, be provided with the shaping chamber on the second, it forms the shaping die cavity with the last side of stereoplasm portion to go up the shaping chamber, be used for the shaping to be close to the outside half. This application has the in-process of moulding plastics, can only be equipped with on the inboard soft portion of mirror leg and embrace the pinhole, and the more even effect of soft portion of parcel.
Description
Technical Field
The application relates to the field of molds, in particular to a glasses leg, a mold for injection molding of the glasses leg and a molding method of the glasses leg.
Background
Eyeglasses typically include a frame and lenses, with the frame generally consisting of a cushion over the bridge of the nose and temples placed over the ears. Currently, most glasses legs of glasses are produced by injection molding through an injection mold.
In view of the above-mentioned related art, in order to improve comfort when wearing glasses, some temples are composed of a hard portion inside and a soft portion injection-molded and wrapped on an outer wall of the hard portion. However, when the soft portion is injection-molded on the outer wall of the hard portion, some pin holes are formed on both the inner side and the outer side of the soft portion for positioning and fixing the hard portion in the molding cavity.
Disclosure of Invention
In order to form the pin holding holes only on the inner side of the soft part, the application provides a glasses leg, a mold for injection molding the glasses leg and a molding method of the glasses leg.
In a first aspect, the present application provides a glasses leg, adopt the following technical scheme:
the utility model provides a glasses leg, includes stereoplasm portion and soft portion, soft portion parcel is on the outer wall of stereoplasm portion, soft portion only inboard is provided with a plurality of and embraces the pinhole.
Through adopting above-mentioned technical scheme, soft portion has better elasticity and deformability, travelling comfort when can improve and wear, and is equipped with only in the inboard of soft portion and embraces the pinhole.
Preferably, the inner side of the soft part is a side of the temple facing the head of the wearer.
Through adopting above-mentioned technical scheme, when the mirror leg was worn, one side that is equipped with and embraces the pinhole can be towards the head for difficult observation is embraced the pinhole when wearing eyes, improves the aesthetic property of mirror leg.
In a second aspect, the present application provides a temple mould, adopt following technical scheme:
the utility model provides a mirror leg mould, includes lower mould and first last mould, be provided with down the shaping chamber on the lower mould, be provided with the spacing groove on the first last mould, the upside and the laminating of spacing groove bottom of stereoplasm portion, the lower half side of stereoplasm portion encloses with lower shaping chamber and closes and form first shaping chamber for the inboard half soft portion of shaping stereoplasm portion.
Through adopting above-mentioned technical scheme, put into lower shaping intracavity with stereoplasm portion to make the upside and the laminating of spacing groove bottom of stereoplasm portion, inject soft glue material into first shaping die cavity in succession, alright mould plastics out half soft portion in the inboard of stereoplasm portion, form the mirror leg embryo.
Preferably, still including the second go up the mould and be used for converting the first mould of going up, the conversion machine that moulds plastics of going up the mould on the second, it forms into the die cavity to go up to be provided with on the second, it forms into the second die cavity with the first half side of stereoplasm portion's side combination for the second half soft portion in the shaping stereoplasm portion outside.
Through adopting above-mentioned technical scheme, after moulding plastics out the mirror leg embryo through lower mould and first mould cooperation, can switch first last mould into the second through the conversion machine of moulding plastics to make the second go up the mould and form the second die cavity with the lower mould cooperation, alright continue to mould out half other soft portion in the first side of mirror leg embryo, and then mould plastics through twice and mould plastics and form out soft portion on the outside of stereoplasm portion, and soft portion parcel is even.
Preferably, the lower mould is located and is provided with down and embraces the needle in the shaping intracavity, the downside butt of the upper end of embracing the needle and stereoplasm portion, the downside of stereoplasm portion has the interval with the bottom surface in lower shaping intracavity, it is the same with the quantity of embracing the pinhole to embrace the quantity of needle, just it is downthehole to embrace the upper end of needle to be located to embrace the pinhole.
Through adopting above-mentioned technical scheme, embrace the needle through the setting, can upwards hold in the palm the downside of stereoplasm portion for the upside and the spacing groove of stereoplasm portion support and tightly laminate, and make the lower half side of stereoplasm portion and lower shaping chamber cooperation form first shaping die cavity.
Preferably, the first upper die and the second upper die are both provided with injection molding holes, the lower die is provided with a first pouring gate communicated with the injection molding holes, the first pouring gate is communicated with the first molding cavity, the second upper die is provided with a second pouring gate communicated with the injection molding holes, and the second pouring gate is communicated with the second molding cavity.
Through adopting above-mentioned technical scheme, the injection molding material can get into first runner and second runner from the injection hole, when first mould and lower mould cooperation were moulded plastics, can be because first runner can be stopped up to some remaining sizing materials, consequently when the second mould cooperates with the lower mould, the sizing material can get into the second shaping intracavity from the second runner.
Preferably, the lower die is provided with two lower molding cavities for installing the hard part, the second upper die is also provided with two upper molding cavities, one end of the first runner, which is far away from the injection molding hole, is provided with a first branch communicated to the first molding cavity, and the second runner is also provided with a second branch communicated to the second molding cavity.
By adopting the technical scheme, during injection molding, the rubber material can enter the two first branches from the first pouring channel and then enter the first forming cavity; and the two second runners are fed into the two second molding cavities from the second runner, so that the injection molding of the soft parts of the two glasses legs is simultaneously carried out, and the production efficiency is improved.
Preferably, a thimble assembly is vertically arranged on the first pouring gate.
Through adopting above-mentioned technical scheme, mould the cooperation when lower mould and second to after having moulded plastics soft portion on the outer wall of stereoplasm portion, can open the second and go up the mould after, will solidify at first runner sizing material ejecting by thimble assembly, and then drive the mirror leg and leave first die cavity together, realize the drawing of patterns, and can not push up soft portion, reduce the wearing and tearing that cause the mirror leg surface during the drawing of patterns.
In a third aspect, the present application provides a method for forming a temple, which adopts the following technical scheme:
putting the hard part into a lower forming cavity, and matching a lower die with a first upper die to carry out die assembly;
then controlling the holding needle to vertically move upwards, pushing the hard part upwards to enable the upper side of the hard part to be attached and tightly abutted to the bottom of the limiting groove, enabling a gap to be formed between the lower half side of the hard part and the bottom surface of the lower forming cavity, and then injecting a soft rubber material into the first forming cavity to form a soft part on the inner side of the glasses leg;
then, the first upper die is changed into a second upper die through an injection conversion machine to be matched with the lower die, the spectacle leg blank with a half of soft part formed is not required to be taken out of the lower forming cavity, meanwhile, the upper half side of the hard part is matched with the upper forming cavity of the second upper die to form a second forming cavity, then soft rubber materials are injected into the second forming cavity, and the soft part on the outer side of the spectacle leg is formed;
and finally, taking the glasses legs out of the lower molding cavity together by soft glue solidified in the first pouring channel from the first pouring channel through the ejector pin assembly.
By adopting the technical scheme, the hard part can be placed into the lower forming cavity, then the lower die and the first upper die are assembled, and then the holding needle pushes the hard part upwards, so that the upper side of the hard part is tightly propped in the limiting groove to limit and fix the hard part;
then, soft rubber can be injected into the first molding die to perform first injection molding, so that the soft part of the lower half part is injected on the lower half side of the hard part, namely the inner side of the glasses legs;
then, the first upper die can be changed into a second upper die through an injection conversion machine, the second upper die is matched with the lower die, the glasses legs are not demolded, injection molding is carried out for the second time in a second molding cavity, so that soft parts of the upper half parts of the glasses legs are formed, and the soft parts of the injection molding for the two times can be attached together to wrap the outer walls of the hard parts;
finally, demoulding is carried out by the thimble assembly, and a pin holding hole is only arranged on the inner side of the soft part, namely one side of the lower forming cavity.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) the soft part can improve the wearing comfort of the glasses legs, and the inner side of the soft part can be only provided with the pin holding holes;
(2) can go up the switching between the mould through the conversion machine of moulding plastics realization first and go up the mould with the second to cooperate with the lower mould respectively, earlier through first mould and lower mould cooperation, mould plastics out half soft portion in the lower half side of stereoplasm portion, mould and lower mould cooperation in the rethread second, mould plastics out half other soft portion in the first half side of stereoplasm portion.
Drawings
FIG. 1 is a schematic view showing the structure of a temple according to the present embodiment;
fig. 2 is an exploded structure view of the temple according to the present embodiment;
FIG. 3 is a schematic structural view of a die set according to the present embodiment;
FIG. 4 is a schematic structural view of the lower mold of the present embodiment;
FIG. 5 is a schematic structural view of a first upper mold of the present embodiment;
FIG. 6 is a schematic structural view of a second upper die of the present embodiment;
FIG. 7 is an enlarged schematic view of portion A of FIG. 4;
FIG. 8 is a schematic view of a half soft portion structure of a first injection molding;
fig. 9 is a schematic structural view of the other half of the soft part of the second injection molding.
Reference numerals: 1. a hard portion; 2. a soft portion; 3. a pin hole is embraced; 4. a lower die; 5. a first upper die; 6. a second upper die; 7. a lower molding cavity; 8. a limiting groove; 9. holding the needle; 10. an upper molding cavity; 11. injection molding holes; 12. a first runner; 13. a second runner; 14. first lane division; 15. second lane division; 16. and (4) a thimble.
Detailed Description
The present application is described in further detail below with reference to figures 1-9.
The embodiment of the application discloses a glasses leg. Referring to fig. 1 and 2, the glasses legs comprise a hard part 1 and a soft part 2, and the soft part 2 is uniformly wrapped on the outer wall of the hard part 1; the soft part 2 is only provided with a plurality of pin holding holes 3 on the inner side, and the pin holding holes 3 are arranged at intervals along the length direction of the soft part 2.
Specifically, the cross section of the hard part 1 is flat, and three needle holding holes 3 are arranged; the hard part 1 can be formed by hard glue injection molding, the soft part 2 can be formed by soft glue injection molding, the hard glue injection molding is hard, and the soft glue injection molding is flexible.
When the glasses are worn, the soft part 2 can improve the flexibility of the glasses legs, and improve the comfort when the glasses are worn. And the inner side of the soft part 2 is the side of the glasses leg facing the head of the wearer, and the holding needle 9 faces the head when the glasses are worn, so that the glasses leg is not easy to observe, and the aesthetic property of the glasses leg is improved.
The embodiment of the application also discloses a glasses leg mold. Referring to fig. 3, the mold for injection molding the soft portion 2 includes a lower mold 4, a first upper mold 5, and a second upper mold 6, wherein the lower mold 4 is capable of cooperating with the first upper mold 5 and the second upper mold 6, respectively, for injection molding the soft portion 2 in two steps.
Referring to fig. 4 and 5, a lower molding cavity 7 for fixing and accommodating the hard portion 1 is formed in the lower mold 4, a limiting groove 8 is formed in the lower surface of the first upper mold 5, and the upper side surface of the hard portion 1 is attached to the bottom of the limiting groove 8 and used for limiting the movement of the hard portion 1 in the horizontal direction; the lower half side of the hard part 1 and the lower forming cavity 7 enclose to form a first forming cavity for injection molding of the half soft part 2 at the inner side of the hard part 1; and when the hard part 1 is horizontally positioned in the lower molding cavity 7, the lower side of the hard part 1 is the inner side of the hard part 1.
Be provided with on lower mould 4 and embrace needle 9 along what vertical direction slided from top to bottom, in embracing the upper end of needle 9 and extending to lower molding cavity 7, it is three to embrace the quantity of needle 9, and sets up along the length direction interval of lower molding cavity 7. When the hard part 1 is installed, the hard part 1 is firstly placed into the lower forming cavity 7, then the lower die 4 and the first upper die 5 are closed, then the holding needle 9 is controlled to move upwards, the hard part 1 is jacked upwards, and the upper side of the hard part 1 is attached to and abutted against the bottom of the limiting groove 8; at this time, a space is formed between the lower side of the hard part 1 and the bottom surface of the lower molding cavity 7, and a first molding cavity is formed; and after demoulding, the holding needle 9 is positioned in the first forming cavity to form a holding needle hole 3 at the inner side of the soft part 2.
Referring to fig. 4 and 6, an upper molding cavity 10 is provided on the lower surface of the second upper mold 6, the upper molding cavity 10 and the upper side of the hard portion 1 are enclosed to form a second molding cavity for injection molding of the other half of the soft portion 2 outside the hard portion 1, and when injection molding is performed for the second time, the lower surface of the other half of the soft portion 2 can be fixed with the upper surface of the soft portion 2 which is injected for the first time, so as to wrap the hard portion 1. When the other half of the soft portion 2 needs to be injection-molded, the first upper mold 5 and the second upper mold 6 can be injection-molded by switching between injection molding by an injection conversion machine (not shown in the figure), so that the temple having the other half of the soft portion 2 injection-molded need not be taken out from the lower molding cavity 7.
Referring to fig. 5 and 6, injection holes 11 extending downward are formed in both the first upper mold 5 and the second upper mold 6.
Referring to fig. 4 and 6, a first gate 12 communicated with the injection hole 11 is formed on the lower mold 4, and the first gate 12 is communicated with the first molding cavity. And a second pouring gate 13 communicated with the injection molding hole 11 is arranged on the lower surface of the second upper die 6, and the second pouring gate 13 is communicated with the second molding cavity.
Wherein, in this scheme, be equipped with two lower shaping chambeies 7 that are used for installing stereoplasm portion 1 on the lower mould 4, also be provided with two on the second mould 6 and go up shaping chamber 10, lower shaping chamber 7 is the same with the quantity that goes up shaping chamber 10, and the quantity that just goes up shaping chamber 7 and last shaping chamber 10 can be selected according to the size of mould and mirror leg down, does not specifically do the injecing. One end of the first pouring channel 12, which is far away from the injection molding hole 11, is provided with a first branch channel 14 communicated to the first molding cavity, and the second pouring channel 13 is also provided with a second branch channel 15 communicated to the second molding cavity, so that the soft parts 2 of the two glasses legs are simultaneously injected, and the injection molding efficiency is improved. Since the first runner 12 and the first branch 14 are clogged by remaining of the sizing material after the injection, the second cavity can be injected from the second runner 13 and the second branch 15.
Referring to fig. 4 and 7, a thimble assembly for demolding the temples is arranged on the lower die 4, the thimble assembly is two thimbles 16 vertically and slidably arranged on the lower die 4, and the upper ends of the thimbles 16 are positioned on the first lane 14; when in injection molding, the upper end surface of the thimble 16 is flush with the bottom of the first branch 14; when demoulding, the thimble 16 will solidify the flexible glue upwards on the first lane 14 and push out the mirror leg that has wrapped up soft portion 2 from the lower molding cavity 7 together, reduce the wearing and tearing that cause the mirror leg surface when demoulding.
The embodiment of the application also discloses a forming method of the glasses legs.
Referring to fig. 8 and 9, the hard portion 1 is first placed in the lower molding cavity 7, and then the lower mold 4 and the first upper mold 5 are matched to be closed;
then controlling the holding needle 9 to vertically move upwards, pushing the hard part 1 upwards to enable the upper side of the hard part 1 to be attached and tightly abutted to the bottom of the limiting groove 8, enabling the lower half side of the hard part 1 to have a gap with the bottom surface of the lower forming cavity 7, then injecting a soft rubber material into the first forming cavity, and forming the soft part 2 on the inner side of the glasses leg;
then, the first upper die 5 is changed into a second upper die 6 through an injection conversion machine to be matched with the lower die 4, the blank of the glasses leg with half of the soft part 2 formed is not required to be taken out from the lower forming cavity 7, meanwhile, the upper half side of the hard part 1 is matched with the upper forming cavity 10 of the second upper die 6 to form a second forming cavity, then, soft rubber materials are injected into the second forming cavity, and the soft part 2 on the outer side of the glasses leg is formed;
finally, the soft glue solidified in the first pouring channel 12 is taken out of the lower molding cavity 7 together from the first pouring channel 12 through the ejector pin assembly.
The implementation principle of the forming method of the glasses leg in the embodiment of the application is as follows:
the soft part 2 wrapped outside the hard part 1 is matched through two sets of dies and is formed by injection molding twice; the holding needle 9 fixes the hard part 1 between the lower forming cavity 7 and the limiting groove 8, so that the injection-molded soft part 2 is more uniform; at the same time, only the soft part 2 at the inner side of the temple will have a hole 3.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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 (9)
1. A temple, its characterized in that: including stereoplasm portion (1) and soft portion (2), soft portion (2) parcel is on the outer wall of stereoplasm portion (1), soft portion (2) only inboard is provided with a plurality of and embraces pinhole (3).
2. The temple of claim 1, wherein: the inner side of the soft part (2) is the side of the glasses legs facing the head of the wearer.
3. A mirror leg mould which characterized in that: including lower mould (4) and first mould (5) of going up, be provided with down molding cavity (7) on lower mould (4), be provided with spacing groove (8) on first mould (5), the upside and the laminating of spacing groove (8) bottom of stereoplasm portion (1), the lower half side of stereoplasm portion (1) encloses with lower molding cavity (7) and closes and form first molding cavity for half inboard soft portion (2) of shaping stereoplasm portion (1).
4. The temple mould according to claim 3, further comprising a second upper mould (6) and an injection conversion machine for converting the first upper mould (5) and the second upper mould (6), wherein an upper molding cavity (10) is arranged on the second upper mould (6), and the upper molding cavity (10) is combined with the upper half side of the hard part (1) to form a second molding cavity for molding the other half soft part (2) outside the hard part (1).
5. A temple piece according to claim 3, wherein: lower mould (4) are located and are provided with in lower shaping chamber (7) and embrace needle (9), the downside butt of embracing the upper end of needle (9) and stereoplasm portion (1), the downside of stereoplasm portion (1) has the interval with the bottom surface of lower shaping chamber (7), it is the same with the quantity of embracing pinhole (3) to embrace the quantity of needle (9), just it is located to embrace pinhole (3) to embrace the upper end of needle (9).
6. The temple mold of claim 4, wherein: the injection molding device is characterized in that injection molding holes (11) are formed in the first upper die (5) and the second upper die (6), a first pouring gate (12) communicated with the injection molding holes (11) is arranged on the lower die (4), the first pouring gate (12) is communicated with the first molding cavity, a second pouring gate (13) communicated with the injection molding holes (11) is arranged on the second upper die (6), and the second pouring gate (13) is communicated with the second molding cavity.
7. The temple arm mold of claim 6, wherein: the lower die (4) is provided with two lower molding cavities (7) for mounting the hard portion (1), the second upper die (6) is also provided with two upper molding cavities (10), one end, far away from the injection molding hole (11), of the first runner (12) is provided with a first sub-channel (14) communicated to the first molding cavity, and the second runner (13) is also provided with a second sub-channel (15) communicated to the second molding cavity.
8. The temple mold of claim 7, wherein: and a thimble assembly is vertically arranged on the first pouring gate (12).
9. A method for forming a temple is characterized in that:
the hard part (1) is placed into a lower molding cavity (7), and then a lower die (4) and a first upper die (5) are matched for die assembly;
then controlling the holding needle (9) to vertically move upwards, pushing the hard part (1) upwards, enabling the upper side of the hard part (1) to be attached and tightly abutted to the bottom of the limiting groove (8), enabling the lower half side of the hard part (1) to have a gap with the bottom surface of the lower forming cavity (7), then injecting a soft rubber material into the first forming cavity, and forming the soft part (2) on the inner side of the glasses leg;
then, the first upper die (5) is changed into a second upper die (6) to be matched with the lower die (4) through an injection conversion machine, a temple blank which is formed into a half of the soft part (2) does not need to be taken out from a lower forming cavity (7), meanwhile, the upper half side of the hard part (1) is matched with an upper forming cavity (10) of the second upper die (6) to form a second forming cavity, then, soft rubber materials are injected into the second forming cavity, and the soft part (2) on the outer side of the temple is formed;
finally, soft glue solidified in the first pouring channel (12) is taken out of the lower molding cavity (7) from the first pouring channel (12) through the ejector pin assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860184.4A CN112068329A (en) | 2020-08-25 | 2020-08-25 | Glasses leg, mold for injection molding of glasses leg and molding method of glasses leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860184.4A CN112068329A (en) | 2020-08-25 | 2020-08-25 | Glasses leg, mold for injection molding of glasses leg and molding method of glasses leg |
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| Publication Number | Publication Date |
|---|---|
| CN112068329A true CN112068329A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010860184.4A Pending CN112068329A (en) | 2020-08-25 | 2020-08-25 | Glasses leg, mold for injection molding of glasses leg and molding method of glasses leg |
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| Country | Link |
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| CN (1) | CN112068329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873704A (en) * | 2020-12-22 | 2021-06-01 | 温州柏康眼镜制造有限公司 | Injection molding method of propionic acid fiber glasses legs |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828366A (en) * | 2005-03-03 | 2006-09-06 | 九如股份有限公司 | Manufacturing method and structure of spectacle frame |
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Application publication date: 20201211 |