CN116461053A - Injection mold for self-ejection resin optical lens - Google Patents
Injection mold for self-ejection resin optical lens Download PDFInfo
- Publication number
- CN116461053A CN116461053A CN202310344563.1A CN202310344563A CN116461053A CN 116461053 A CN116461053 A CN 116461053A CN 202310344563 A CN202310344563 A CN 202310344563A CN 116461053 A CN116461053 A CN 116461053A
- Authority
- CN
- China
- Prior art keywords
- plate
- die
- shaped support
- upper die
- injection molding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 239000011347 resin Substances 0.000 title claims abstract description 14
- 229920005989 resin Polymers 0.000 title claims abstract description 14
- 230000003287 optical effect Effects 0.000 title claims abstract description 13
- 238000001746 injection moulding Methods 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C2045/2604—Latching means for successive opening or closing of mould plates
-
- 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
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a self-ejection resin optical lens injection mold, which comprises an upper mold structure and a lower mold structure, wherein the upper mold structure comprises an upper mold push plate, an upper mold base plate, an injection molding coaming, an upper mold core and a pouring gate; the ejection structure comprises a U-shaped support, an ejection rod corresponding to the cavity is arranged at the central position of the U-shaped support, magnets are arranged on the upper surfaces of two opposite sides of the U-shaped support, pull rods are arranged at the two opposite sides of the lower surface of the upper die pushing plate and correspond to the U-shaped support, and electromagnetic rings corresponding to the magnets are arranged at the free ends of the pull rods at the two sides. The automatic ejection function of the product is carried out on the basis of ensuring the close fit of the upper die core and the lower die core, and the stroke is not required to be increased.
Description
Technical Field
The invention relates to the technical field of resin optical lens injection molds, in particular to a self-ejection resin optical lens injection mold.
Background
China authorized bulletin number is CN 208593029U, and authorized bulletin day is 2019, 03 and 12, and particularly relates to a sliding block locking structure in an injection mold, which relates to the field of injection molds. The sliding block locking structure in the injection mold comprises a main mold and an auxiliary mold, wherein an injection molding pipe is inserted into the top of the main mold, an injection molding nozzle is inserted into the bottom of the main mold, and a sliding rod is welded to one side, far away from the injection molding nozzle, of the bottom of the main mold. The sliding block locking structure in the injection mold comprises a sliding rod, a clamping groove, a slot, a first sliding block, a third spring, a push plate, a push block, a first spring and a second spring, wherein the first sliding block pushes the third spring when the sliding rod is inserted into the slot, so that the first sliding block slides into the placing groove, the lower end of the sliding rod can push the push plate, the push plate can push the push block, the main mold and the auxiliary mold can be locked, the injection mold can be tightly attached, and the problem that an injection molded product is deformed due to insufficient attachment in an injection molding process of the existing injection mold is solved. The prior art has the following defects: after complete injection molding, the product cannot be ejected. In view of this, improvements are needed.
Disclosure of Invention
Accordingly, the invention aims to provide a self-ejection resin optical lens injection mold which has an automatic product ejection function on the basis of ensuring that an upper mold core and a lower mold core are tightly attached, and the stroke does not need to be increased.
The invention provides a self-ejection resin optical lens injection mold, which comprises an upper mold structure and a lower mold structure, wherein the upper mold structure comprises an upper mold pushing plate, an upper mold backing plate, an injection molding coaming, an upper mold core and a pouring gate, the upper mold backing plate is correspondingly arranged on the lower surface of the upper mold pushing plate, the injection molding coaming is correspondingly and centrally arranged on the lower surface of the upper mold backing plate, a mold clamping space is formed by surrounding the middle of the injection molding coaming, the upper mold core is arranged in the mold clamping space and is connected with the upper mold backing plate, and the pouring gate sequentially penetrates through the upper mold pushing plate, the upper mold backing plate and the upper mold core;
the lower die structure comprises a lower base plate, a lower die plate and a lower die core, wherein the lower base plate is connected with the lower die plate through a connecting rod to form an ejection structure installation space, the lower die core is correspondingly installed on the upper surface of the lower die plate and corresponds to the lower die core in position, and a cavity corresponding to the shape of a product is formed on the upper surface of the lower die core;
the ejection structure comprises a U-shaped support, an ejection rod corresponding to the cavity is arranged at the central position of the U-shaped support, a cushion rod is arranged at the bottom of the U-shaped support, the cushion rod is in contact with the lower base plate in a pasting mode, magnets are arranged on the upper surfaces of two opposite sides of the U-shaped support, pull rods are arranged on two opposite sides of the lower surface of the upper die pushing plate and correspond to the U-shaped support, and electromagnetic rings corresponding to the magnets are arranged at the free ends of the pull rods on two sides; when the die is in a non-die-closing state, the lower surface of the pull rod and the lower surface of the injection molding coaming are in the same horizontal plane, and the upper surfaces of the two opposite sides of the U-shaped support and the upper surface of the lower die plate are in the same horizontal plane.
Preferably, a positioning hole is formed in a position, corresponding to the cushion rod, on the upper surface of the lower cushion plate.
Preferably, a reset spring sleeved outside the ejector rod is arranged between the U-shaped support and the lower die plate.
Preferably, limiting convex columns are arranged on two opposite sides of the lower surface of the lower die plate.
Preferably, slots are formed in positions, corresponding to the injection molding coaming, of the upper surface of the lower template, limit grooves are formed in two opposite sides of the inner side surface of the injection molding coaming, and locking structures are arranged in the lower template and close to the slots; the locking structure comprises a gear strip, a gear and a driving motor, wherein the power output end of the driving motor is connected with the gear, the outer side face of the gear is meshed with the gear strip, and a through hole for the gear strip to be inserted is formed in one side of the slot, which is close to the locking structure.
The beneficial effects of the invention are as follows: after the die assembly and injection molding of the upper die structure and the lower die structure are completed, the electromagnetic ring is electrified to adsorb the magnet, so that the U-shaped support is synchronously driven to rise to a set height when the upper die structure rises and resets, and the ejection rod is driven to eject a product to the set height along with the rising of the U-shaped support without increasing the stroke; and the upper die core and the lower die core are matched in the matched die space, so that the tight fit can be ensured during injection molding, and the injection molding quality is ensured.
Drawings
Fig. 1 is a front view of the present invention.
The reference numerals are: the upper die pushing plate 10, the upper die cushion plate 11, the injection molding coaming 16, the upper die core 12, the pouring gate 13, the pull rod 14, the electromagnetic ring 15, the limiting groove 17, the cavity 18, the slot 19, the gear bar 20, the gear 21, the positioning hole 22, the connecting rod 23, the lower cushion plate 24, the ejector rod 25, the reset spring 26, the cushion rod 28, the U-shaped bracket 27, the lower die plate 31, the lower die core 29, the magnet 30, the limiting convex column 32, the die clamping space 33, the upper die structure 34, the lower die structure 35 and the driving motor 36.
Detailed Description
The invention will be further described in detail with reference to the following detailed description and the accompanying drawings, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, the invention provides a self-ejecting resin optical lens injection mold, which comprises an upper mold structure 34 and a lower mold structure 35, wherein the upper mold structure 34 comprises an upper mold pushing plate 10, an upper mold cushion plate 11, an injection molding enclosing plate 16, an upper mold core 12 and a gate 13, the upper mold cushion plate 11 is correspondingly arranged on the lower surface of the upper mold pushing plate 10, the injection molding enclosing plate 16 is correspondingly arranged on the lower surface of the upper mold cushion plate 11 in a centering manner, a mold clamping space 33 is formed by enclosing the middle of the injection molding enclosing plate 16, the upper mold core 12 is arranged in the mold clamping space and is connected with the upper mold cushion plate 11, and the gate 13 sequentially penetrates through the upper mold pushing plate 10, the upper mold cushion plate 11 and the upper mold core 12.
The lower die structure 35 comprises a lower base plate 24, a lower die plate 31 and a lower die core 29, wherein the lower base plate 24 and the lower die plate 31 are connected through a connecting rod 23 to form an ejection structure installation space, the lower die core 29 is correspondingly installed on the upper surface of the lower die plate 31 and corresponds to the upper die core 12 in position, and a cavity 18 corresponding to the product shape is formed on the upper surface of the lower die core 29.
The ejection structure comprises a U-shaped support 27, wherein an ejection rod 25 corresponding to a cavity is arranged at the middle position of the U-shaped support 27, a cushion rod 28 is arranged at the bottom of the U-shaped support 27, the cushion rod 28 is in contact with a lower cushion plate 24, magnets 30 are arranged on the upper surfaces of two opposite sides of the U-shaped support 27, pull rods 14 are arranged on two opposite sides of the lower surface of an upper die push plate 10 and at positions corresponding to the U-shaped support 27, and electromagnetic rings 15 corresponding to the magnets 30 are arranged at the free ends of the pull rods 14 on the two sides; in the unclamped state, the lower surface of the tie bar 14 is at the same level as the lower surface of the injection molding coaming 16, and the upper surfaces of the opposite sides of the U-shaped bracket 27 are at the same level as the upper surface of the lower die plate 31.
The upper surface of the lower mat 24 is provided with positioning holes 22 at positions corresponding to the mat bars 28.
A return spring 26 is arranged between the U-shaped bracket 27 and the lower template 31 and sleeved outside the ejector rod 25.
Limiting convex columns 32 are arranged on two opposite sides of the lower surface of the lower template 31.
The upper surface of the lower template 31 is provided with slots 19 at positions corresponding to the injection molding coaming 16, two opposite sides of the inner side surface of the injection molding coaming 16 are provided with limit grooves 17, and locking structures are arranged in the lower template 31 and close to the slots 19; the locking structure comprises a gear strip 20, a gear 21 and a driving motor 36, wherein the power output end of the driving motor is connected with the gear 21, the outer side surface of the gear 21 is meshed with the gear strip 20, and a through hole for inserting the gear strip 20 is formed in one side, close to the locking structure, of the slot 19.
The invention comprises the following operation steps:
1. the upper die structure 34 moves towards the lower die structure 35 until the lower die core 29 enters the die clamping space 33 and is attached to the upper die core 12 to form die clamping;
2. the driving motor 36 drives the gear bar 20 to move towards the direction of the slot 19 through the gear 21 until one side of the gear bar 20 is correspondingly inserted into the limit slot 17, so that the upper die structure 34 and the lower die structure 35 are locked;
3. the injection molding machine injects resin from the gate 13 into the cavity 18;
4. after injection molding is completed, the locking structure is unlocked, the electromagnetic ring 15 is magnetically connected with the magnet 30 after being electrified, and the upper die structure 34 drives the U-shaped bracket 27 to displace upwards by a set distance while resetting, so that the ejector rod 25 ejects a product in the cavity 18;
5. and after the product is ejected, taking the product away, and repeating the operation.
The invention has the automatic product ejection function on the basis of ensuring the close fit of the upper die core and the lower die core, and the stroke is not required to be increased.
The above examples illustrate only one embodiment of the invention, which is described in more detail and is not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. The utility model provides a from ejecting resin optical lens piece injection mold, includes mould structure (34) and lower mould structure (35), its characterized in that: the upper die structure (34) comprises an upper die pushing plate (10), an upper die cushion plate (11), an injection molding coaming (16), an upper die core (12) and a pouring gate (13), wherein the upper die cushion plate (11) is correspondingly arranged on the lower surface of the upper die pushing plate (10), the injection molding coaming (16) is correspondingly arranged on the lower surface of the upper die cushion plate (11) in the middle, a die clamping space (33) is formed by encircling the middle of the injection molding coaming (16), the upper die core (12) is arranged in the die clamping space and is connected with the upper die cushion plate (11), and the pouring gate (13) sequentially penetrates through the upper die pushing plate (10), the upper die cushion plate (11) and the upper die core (12);
the lower die structure (35) comprises a lower base plate (24), a lower die plate (31) and a lower die core (29), wherein the lower base plate (24) and the lower die plate (31) are connected through a connecting rod (23) to form an ejection structure installation space, the lower die core (29) is correspondingly installed on the upper surface of the lower die plate (31) and is positioned corresponding to the upper die core (12), and a die cavity (18) corresponding to the shape of a product is formed on the upper surface of the lower die core (29);
the ejection structure comprises a U-shaped support (27), wherein an ejection rod (25) corresponding to the cavity is arranged at the central position of the U-shaped support (27), a cushion rod (28) is arranged at the bottom of the U-shaped support (27), the cushion rod (28) is in contact with the lower cushion plate (24), magnets (30) are arranged on the upper surfaces of two opposite sides of the U-shaped support (27), pull rods (14) are arranged on two opposite sides of the lower surface of the upper die push plate (10) and at positions corresponding to the U-shaped support (27), and electromagnetic rings (15) corresponding to the magnets (30) are arranged at the free ends of the pull rods (14) on two sides; when the die is in a non-die-closing state, the lower surface of the pull rod (14) and the lower surface of the injection molding coaming (16) are in the same horizontal plane, and the upper surfaces of the two opposite sides of the U-shaped support (27) and the upper surface of the lower die plate (31) are in the same horizontal plane.
2. The self-ejecting resin optical lens injection mold according to claim 1, wherein: and a positioning hole (22) is formed in the upper surface of the lower base plate (24) at a position corresponding to the base rod (28).
3. The self-ejecting resin optical lens injection mold according to claim 2, wherein: a reset spring (26) sleeved outside the ejector rod (25) is arranged between the U-shaped bracket (27) and the lower die plate (31).
4. A self-ejecting resin optical lens injection mold according to claim 3, wherein: limiting convex columns (32) are arranged on two opposite sides of the lower surface of the lower die plate (31).
5. The self-ejecting resin optical lens injection mold according to claim 4, wherein: the upper surface of the lower template (31) is provided with a slot (19) at a position corresponding to the injection molding coaming (16), two opposite sides of the inner side surface of the injection molding coaming (16) are provided with limit slots (17), and locking structures are arranged in the lower template (31) and close to the slot (19); the locking structure comprises a gear strip (20), a gear (21) and a driving motor (36), wherein the power output end of the driving motor is connected with the gear (21), the outer side face of the gear (21) is meshed with the gear strip (20), and a through hole for the gear strip (20) to be inserted is formed in one side, close to the locking structure, of the slot (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310344563.1A CN116461053A (en) | 2023-03-31 | 2023-03-31 | Injection mold for self-ejection resin optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310344563.1A CN116461053A (en) | 2023-03-31 | 2023-03-31 | Injection mold for self-ejection resin optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116461053A true CN116461053A (en) | 2023-07-21 |
Family
ID=87176364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310344563.1A Withdrawn CN116461053A (en) | 2023-03-31 | 2023-03-31 | Injection mold for self-ejection resin optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116461053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117885290A (en) * | 2024-03-15 | 2024-04-16 | 江苏优立光学眼镜有限公司 | Multi-point myopia defocusing spectacle lens mould |
-
2023
- 2023-03-31 CN CN202310344563.1A patent/CN116461053A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117885290A (en) * | 2024-03-15 | 2024-04-16 | 江苏优立光学眼镜有限公司 | Multi-point myopia defocusing spectacle lens mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20230721 |
|
| WW01 | Invention patent application withdrawn after publication |