CN114734582A - Cross double-channel lens barrel mold structure and forming method thereof - Google Patents
Cross double-channel lens barrel mold structure and forming method thereof Download PDFInfo
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- CN114734582A CN114734582A CN202210431386.6A CN202210431386A CN114734582A CN 114734582 A CN114734582 A CN 114734582A CN 202210431386 A CN202210431386 A CN 202210431386A CN 114734582 A CN114734582 A CN 114734582A
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- 238000000034 method Methods 0.000 title claims description 12
- 238000001746 injection moulding Methods 0.000 claims abstract description 53
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 239000003292 glue Substances 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 description 13
- 229920003023 plastic Polymers 0.000 description 13
- 230000009471 action Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7337—Heating or cooling of the mould using gas or steam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of lens cone molds, and particularly relates to a cross-shaped double-channel lens cone mold structure which comprises a base, wherein a lower template is arranged at the top of the base, two fixing plates are fixedly connected to two sides of the lower template, a sliding rod is inserted in the fixing plates in a sliding penetrating mode, the sliding rod is fixedly connected with the base, a first spring is sleeved on the part, located at the bottom of the fixing plate, of the sliding rod, and a containing groove is formed in the bottom of the lower template. In the injection molding process, after the injection molding glue enters the rubber inlet pipe, the distance from the main injection molding pipe to the branch pipe is the same, so that the time and the pressure of the injection molding glue entering each first annular pipe are the same, the consistency of products is convenient to improve, the injection molding glue entering the first annular pipes enters the second annular pipes through two symmetrical connecting pipes positioned on the outer sides of the second annular pipes at the same time, and the injection molding efficiency is improved compared with the traditional injection mold which is arranged in a uniform shape.
Description
Technical Field
The invention belongs to the technical field of lens cone molds, and particularly relates to a cross-shaped double-channel lens cone mold structure.
Background
A cell-phone lens section of thick bamboo is one of the constitution part of cell-phone camera lens, it mainly adopts injection moulding's mode to make, and need use injection mold when moulding plastics to a cell-phone lens section of thick bamboo, and current mould structure is mostly eight cave a style of calligraphy and arranges, this structural advantage lies in that the structure is comparatively compact, the material is comparatively saved, but because there is the difference in every cave hole to the distance of advancing gluey mouth, this time and the pressure of advancing gluey of advancing that leads to every cave hole are all inequality, and then the uniformity that leads to the product is not good.
In addition, when the injection molding is carried out, the mold needs to be placed between the upper template and the lower template for heat preservation and fixation, the templates at the top are mostly lifted by adopting a hydraulic structure, when the pressure of the hydraulic structure is insufficient, the upper template and the lower template cannot well fix the mold, so that the mold has deviation when the injection molding is carried out, and the injection molding quality of a product is influenced.
Therefore, it is necessary to provide a cross-shaped dual-channel lens barrel mold structure to solve the above problems.
Disclosure of Invention
In order to solve the problems, the invention provides a cross-shaped double-channel lens barrel mold structure and a forming method thereof, in the injection molding process, the time and the pressure of injection molding glue entering each first annular pipe are the same, so that the product consistency can be improved compared with the existing injection mold, two symmetrical connecting pipes positioned on the outer side of the second annular pipe enter the second annular pipe simultaneously, so that the injection molding efficiency is improved compared with the traditional injection mold in uniform-shaped arrangement, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a cross-shaped double-flow-passage lens barrel mold structure comprises a base, wherein a lower template is arranged at the top of the base, two fixed plates are fixedly connected with both sides of the lower template, a sliding rod is inserted on the fixed plates in a sliding and penetrating way and is fixedly connected with the base, and the part of the sliding rod positioned at the bottom of the fixed plate is sleeved with a first spring, the bottom of the lower template is provided with a containing groove, a heat preservation device is arranged in the accommodating groove, an upper template is arranged at the top of the lower template, mold grooves are arranged at the opposite sides of the upper template and the lower template, a lens cone die is arranged in a die groove of the lower die, the top of the lower die is fixedly connected with a plurality of guide posts which penetrate through the top of the upper die plate in a sliding manner, and the top of the guide pillar is sleeved with a locking device, the top of the upper template is provided with a U-shaped plate, the U-shaped plate is fixedly connected with the base, and a hydraulic rod is connected between the U-shaped plate and the upper template.
Further, the heat preservation device comprises a first heat preservation plate, the bottom of the first heat preservation plate is fixedly connected with a supporting plate, a plurality of fixed rods are fixedly connected between the bottom of the supporting plate and the top of the base, a baffle is arranged at the bottom of the supporting plate, and a plurality of fixed rods are all inserted on the baffle in a sliding way, the periphery of the baffle is respectively and fixedly connected with the peripheral groove walls of the containing groove, and a telescopic air bag is fixedly connected between the baffle plate and the supporting plate, a plurality of air ducts are inserted and connected at the top of the supporting plate in a penetrating way, the top of each air duct is in a sealing design, the bottom of the air duct is communicated with the telescopic air bag, the groove wall at the top of the accommodating groove corresponding to the top of the air duct is provided with an inserting hole, the inserting hole is communicated with the mold groove, and the air duct slides and is pegged graft in the jack, the through-hole has all been seted up to the both sides of air duct, and the through-hole corresponds all set up the gas pocket of bar on the jack both sides pore wall.
Further, the lens cone mould includes that two main pipes of moulding plastics, and two main pipes of moulding plastics are cross-shaped cross connection together, two the main rubber tube that advances of the top fixedly connected with infundibulate of the union coupling department of moulding plastics, and advance the rubber tube and all communicate with two main pipes of moulding plastics, the main both ends of moulding plastics the pipe all are connected with the branch pipe, the branch pipe is moulded plastics the pipe intercommunication with the main, and the both ends of branch pipe all are equipped with first ring pipe and second ring pipe, and the second ring pipe is located the inboard of first ring pipe, first ring pipe and branch pipe fixed connection and intercommunication, be connected with two connecting pipes between second ring pipe and the first ring pipe, and the inboard of second ring pipe has seted up a plurality of mouths of moulding plastics.
Furthermore, the locking device comprises a sleeve, the sleeve is sleeved on the top of the guide post, the bottom of the sleeve is fixedly connected with the top of the upper template, a rotating ring is arranged inside the sleeve and is rotatably sleeved on the guide post, two sides of the rotating ring are fixedly connected with first deflector rods, guide grooves are formed in the sleeve corresponding to the first deflector rods, the first deflector rods are inserted in the guide grooves, a first annular plate is fixedly connected to the top of the rotating ring, two second deflector rods are symmetrically and fixedly connected to the inner side of the first annular plate, a second annular plate is arranged on the top of the first annular plate, limiting grooves are formed in the positions, opposite to the two second deflector rods, of the second annular plate, a plurality of straight rods are fixedly connected to the top of the second annular plate, the straight rods penetrate through the top of the sleeve in a sliding manner, and the top of the straight rods is fixedly connected with the same circular plate, and the part of the straight rod outside the sleeve is sleeved with a second spring.
Furthermore, a groove is formed in the top of the upper template, a second heat-insulation plate is fixedly connected in the groove, a heat-insulation cover is fixedly connected to the top of the upper template, the shape of the heat-insulation cover is the same as that of the rubber inlet pipe, and the bottom of the heat-insulation cover is communicated with the center of the die groove in the upper template.
Furthermore, the limiting groove comprises an inclined groove section and a horizontal section from bottom to top, and the projection length of the limiting groove in the vertical direction is smaller than the projection length of the guide groove in the vertical direction.
Further, the guide groove comprises a vertical section and an inclined section from bottom to top, and the inclined direction of the inclined section is the same as that of the inclined groove section.
Furthermore, the top of guide pillar slides and pegs graft and has the locating lever, the locating lever and sleeve top inner wall fixed connection.
Further, the outer diameter of the second annular plate is smaller than the inner diameter of the first annular plate, and the inner diameter of the second annular plate is larger than the diameter of the guide pillar.
The invention also provides a molding method for the cross-shaped double-channel lens barrel mold structure by using any one of the above parts, which comprises the following steps
S1: placing the lens barrel mould into a mould groove on the lower template, and connecting the rubber inlet pipe with the injection pump;
s2: the upper template is attached to the lower template under the pushing of the hydraulic rod;
s3: and the injection molding glue enters the main injection molding pipe through the rubber inlet pipe, and finally injection molding of the mold is completed through the injection molding opening on the inner side of the second annular pipe.
Compared with the prior art, the invention has the following technical effects and advantages:
1. in the injection molding process, after the injection molding glue enters the rubber inlet pipe, the distance from the main injection molding pipe to the branch pipe is the same, so that the time and the pressure of the injection molding glue entering each first annular pipe are the same, the consistency of products can be improved compared with the existing injection mold, and the injection molding glue entering the first annular pipes enters the second annular pipes through two symmetrical connecting pipes positioned on the outer sides of the second annular pipes simultaneously, so that the injection molding efficiency is improved compared with the traditional injection mold which is arranged in a uniform shape;
2. when the upper template moves downwards, the first deflector rod on the rotating ring moves upwards along the vertical section of the guide groove firstly, the first deflector rod descends along with the continuous descending of the upper template, when the first deflector rod reaches the inclined section of the guide groove, the second deflector rod just enters the chute section of the limiting groove, when the first deflector rod moves along the inclined section of the guide groove, the first deflector rod drives the rotating ring and the first annular plate to rotate under the action of the inclined section of the guide groove, the first annular plate can drive the second deflector rod to move along the chute section of the limiting groove, at the moment, the acting force of the second deflector rod on the chute section of the limiting groove can pull the second annular plate to move downwards, along with the downward movement of the second annular plate, the circular plate can extrude the second spring under the pulling of the straight rod, at the moment, the reaction force of the second spring can pull the straight rod upwards on the rotating ring and the guide post, so that the upper template and the lower template can be tightly attached together under the action of the pulling force, the lens cone mould can be firmly fixed by the upper template and the lower template during injection molding, and the injection molding quality of a product is ensured;
3. when the upper template contacts with the lower template in the downward movement process of the upper template, the lower template moves downward under the extrusion of the upper template and compresses the first spring, and meanwhile, the baffle begins to stretch the telescopic air bag downward, so that the air inlet of the air guide pipe is expanded, when the lower die is attached to the base, the baffle stops stretching the telescopic air bag, the air guide pipe is completely inserted into the insertion hole, so that the mould groove on the lower template can be filled and leveled by the top of the air duct, meanwhile, the first heat preservation plate can be attached to the groove wall of the top of the containing groove, thereby preserving the heat of the lower template, when the injection molding is finished, the gas in the telescopic air bag can be sprayed out from the telescopic air bag under the extrusion of the baffle along with the gradual recovery of the lower template, thereby cooling the lens cone mould, and then improve the cooling efficiency of lens cone mould after the completion of moulding plastics, the cooling shaping of product is accelerated simultaneously.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of an upper mold plate according to the present invention;
FIG. 3 is a schematic perspective view of the base, the lower mold plate and the barrel mold of the present invention;
FIG. 4 is a schematic perspective view of the base and lower platen of the present invention;
FIG. 5 is a perspective cross-sectional view of FIG. 4 of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5 according to the present invention;
FIG. 7 is a perspective view of a portion of the heat retention means of the present invention;
FIG. 8 is a schematic perspective view of the sleeve and guide post of the present invention;
FIG. 9 is a perspective cross-sectional view of FIG. 8 in accordance with the present invention;
FIG. 10 is an enlarged view of portion B of FIG. 9 according to the present invention;
FIG. 11 is a schematic perspective view of a second annular plate, a straight rod and a second spring according to the present invention;
fig. 12 is a schematic perspective view of a lens barrel mold according to the present invention.
In the figure: 1. a base; 2. a lower template; 3. a slide bar; 4. a first spring; 5. a heat preservation device; 51. a first heat-insulating plate; 52. a support plate; 53. a baffle plate; 54. a telescopic air bag; 55. an air duct; 56. a through hole; 57. air holes; 6. mounting a template; 7. a lens barrel mold; 8. a guide post; 9. a locking device; 90. a sleeve; 91. rotating the ring; 92. a first shift lever; 93. a guide groove; 94. a first annular plate; 95. a second deflector rod; 96. a second annular plate; 97. a limiting groove; 98. a straight rod; 99. a second spring; 10. a U-shaped plate; 11. a hydraulic lever; 12. a main injection pipe; 13. feeding a rubber tube; 14. a branch pipe; 15. a first annular tube; 16. a second annular tube; 17. a connecting pipe; 18. a second insulation board; 19. a heat-preserving cover; 20. and (5) positioning the rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The invention provides a cross-shaped double-channel lens barrel mold structure as shown in figures 1-12, which comprises a base 1, wherein the top of the base 1 is provided with a lower template 2, two sides of the lower template 2 are fixedly connected with two fixing plates, the fixing plates are slidably inserted with a slide bar 3, the slide bar 3 is fixedly connected with the base 1, the part of the slide bar 3 positioned at the bottom of the fixing plate is sleeved with a first spring 4, the bottom of the lower template 2 is provided with an accommodating groove, the accommodating groove is internally provided with a heat preservation device 5, the top of the lower template 2 is provided with an upper template 6, the opposite sides of the upper template 6 and the lower template 2 are provided with mold grooves, a lens barrel mold 7 is arranged in the mold groove of the lower mold, the top of the lower mold is fixedly connected with a plurality of guide posts 8, the guide posts 8 slidably penetrate through the top of the upper template 6, and the tops of the guide posts 8 are sleeved with a locking device 9, the top of the upper template 6 is provided with a U-shaped plate 10, the U-shaped plate 10 is fixedly connected with the base 1, a hydraulic rod 11 is connected between the U-shaped plate 10 and the upper template 6, the top of the upper template 6 is provided with a groove, a second heat insulation plate 18 is fixedly connected in the groove, the top of the upper template 6 is fixedly connected with a heat insulation cover 19, the shape of the heat insulation cover 19 is the same as that of the rubber inlet pipe 13, and the bottom of the heat insulation cover 19 is communicated with the center position of a mold groove on the upper template 6;
when moulding plastics, put into the mould inslot of lower bolster 2 with lens cone mould 7 earlier, start hydraulic stem 11 afterwards, make cope match-plate pattern 6 be close to lower bolster 2 gradually, in this process, heat preservation device 5 can be in the same place with the laminating of 2 bottoms of lower bolster gradually, thereby make lower bolster 2 can keep the stability of the temperature of moulding plastics, after cope match- plate pattern 6 and 2 laminating of lower bolster are in the same place, locking device 9 can lock the two, thereby guarantee when moulding plastics, cope match-plate pattern 6 and lower bolster 2 can keep stable clamping state to lens cone mould 7, and then cooperate lens cone mould 7 to improve the uniformity and the quality that the product was moulded plastics.
As shown in fig. 5-7, the heat preservation device 5 includes a first heat preservation plate 51, a supporting plate 52 is fixedly connected to the bottom of the first heat preservation plate 51, a plurality of fixing rods are fixedly connected between the bottom of the supporting plate 52 and the top of the base 1, a baffle 53 is arranged at the bottom of the supporting plate 52, the fixing rods are all inserted into the baffle 53 in a sliding manner, the periphery of the baffle 53 is respectively fixedly connected with the peripheral wall of the accommodating groove, a telescopic airbag 54 is fixedly connected between the baffle 53 and the supporting plate 52, a plurality of air ducts 55 are inserted into the top of the supporting plate 52 in a penetrating manner, the top of the air duct 55 is in a sealing design, the bottom of the air duct 55 is communicated with the telescopic airbag 54, insertion holes are formed in the wall of the top of the accommodating groove corresponding to the top of the air duct 55, the insertion holes are communicated with the mold groove, the air duct 55 is inserted into the insertion holes in a sliding manner, through holes 56 are formed in both sides of the air duct 55, strip-shaped air holes 57 are formed in the hole walls of the two sides of the jack corresponding to the through hole 56;
in the process that the upper template 6 moves downwards, when the upper template 6 is in contact with the lower template 2, the lower template 2 moves downwards under the extrusion of the upper template 6 and compresses the first spring 4, meanwhile, the baffle plate 53 begins to stretch the telescopic air bag 54 downwards so as to enable the telescopic air bag to be inflated, when the lower template is attached to the base 1, the baffle plate 53 stops stretching the telescopic air bag 54, at the moment, the air guide pipe 55 is completely inserted into the jack, so that the mold groove on the lower template 2 can be filled and leveled by the top of the air guide pipe 55, meanwhile, the first heat-preserving plate 51 can be attached to the top groove wall of the accommodating groove, so that the lower template 2 is heat-preserved;
after the completion of moulding plastics, along with cope match-plate pattern 6 resumes the normal position gradually, lower bolster 2 upward movement gradually under the effect of first spring 4 this moment, in this process, because layer board 52 is through fixed plate and base 1 fixed connection, consequently along with the upward movement of lower bolster 2, baffle 53 extrudees flexible gasbag 54 from the bottom cooperation layer board 52 of flexible gasbag 54, thereby make the gas in the flexible gasbag 54 can get into the mould inslot through air duct 55, and blow the bottom at lens cone mould 7, thereby cool down to it, and then improve the cooling efficiency of the lens cone mould 7 after the completion of moulding plastics, accelerate the cooling shaping of product simultaneously.
As shown in fig. 12, the lens barrel mold 7 includes two main injection molding pipes 12, the two main injection molding pipes 12 are cross-connected together, funnel-shaped rubber inlet pipes 13 are fixedly connected to tops of joints of the two main injection molding pipes 12, the rubber inlet pipes 13 are communicated with the two main injection molding pipes 12, branch pipes 14 are connected to two ends of the main injection molding pipes 12, the branch pipes 14 are communicated with the main injection molding pipes 12, a first annular pipe 15 and a second annular pipe 16 are arranged at two ends of each branch pipe 14, the second annular pipe 16 is located on an inner side of the first annular pipe 15, the first annular pipe 15 is fixedly connected and communicated with the branch pipes 14, two connecting pipes 17 are connected between the second annular pipe 16 and the first annular pipe 15, and a plurality of injection molding ports are formed on an inner side of the second annular pipe 16;
after the injection molding glue enters the rubber inlet pipe 13, the distance from the main injection molding pipe 12 to the branch pipe 14 is the same, so that the time and the pressure of the injection molding glue entering each first annular pipe 15 are the same, the consistency of products can be improved compared with the existing injection mold, and then the injection molding glue entering the first annular pipe 15 simultaneously enters the second annular pipe 16 through two symmetrical connecting pipes 17 positioned on the outer side of the second annular pipe 16, so that the injection molding efficiency is improved compared with the injection mold which is arranged in a uniform shape.
As shown in fig. 8-11, the locking device 9 includes a sleeve 90, the sleeve 90 is sleeved on the top of the guide post 8, the bottom of the sleeve 90 is fixedly connected to the top of the upper mold plate 6, a rotating ring 91 is disposed inside the sleeve 90, the rotating ring 91 is rotatably sleeved on the guide post 8, first shift levers 92 are fixedly connected to both sides of the rotating ring 91, a guide groove 93 is formed on the sleeve 90 corresponding to the first shift lever 92, the first shift lever 92 is inserted into the guide groove 93, a first annular plate 94 is fixedly connected to the top of the rotating ring 91, two second shift levers 95 are symmetrically and fixedly connected to the inner side of the first annular plate 94, a second annular plate 96 is disposed on the top of the first annular plate 94, limiting grooves 97 are formed in positions of the second annular plate 96 opposite to the two second shift levers 95, a plurality of straight levers 98 are fixedly connected to the top of the second annular plate 96, the straight rods 98 slidably penetrate through the top of the sleeve 90, the tops of the straight rods 98 are fixedly connected with the same circular plate, a second spring 99 is sleeved on the part, located outside the sleeve 90, of each straight rod 98, the limiting groove 97 comprises an inclined groove section and a horizontal section from bottom to top, the projection length of the limiting groove 97 in the vertical direction is smaller than that of the guide groove 93 in the vertical direction, the guide groove 93 comprises a vertical section and an inclined section from bottom to top, the inclined direction of the inclined section is the same as that of the inclined groove section, the top of the guide post 8 is slidably inserted with the positioning rod 20, the positioning rod 20 is fixedly connected with the inner wall of the top of the sleeve 90, the outer diameter of the second annular plate 96 is smaller than the inner diameter of the first annular plate 94, and the inner diameter of the second annular plate 96 is larger than that of the guide post 8;
when the upper die plate 6 moves downwards under the push of the hydraulic rod 11, the first deflector rod 92 on the rotating ring 91 firstly moves upwards along the vertical section of the guide groove 93, along with the continuous descending of the upper die plate 6, when the first deflector rod 92 reaches the inclined section of the guide groove 93, the second deflector rod 95 just enters the inclined groove section of the limiting groove 97, at the moment, the upper die plate 6 continues descending, and the first deflector rod 92 can move along the inclined section of the guide groove 93, in the process, the first deflector rod 92 drives the rotating ring 91 and the first annular plate 94 to rotate under the action of the inclined section of the guide groove 93, and the first annular plate 94 can drive the second deflector rod 95 to move along the inclined groove section of the limiting groove 97, because the second annular plate 96 is fixedly connected with the straight rod 98, when the second deflector rod 95 moves along the inclined groove section of the limiting groove 97, the acting force of the second deflector rod 95 on the inclined groove section of the limiting groove 97 can pull the second annular plate 96 downwards, along with the downward movement of the second annular plate 96, the circular plate can extrude the second spring 99 under the pulling of the straight rod 98, at the moment, the reaction force of the second spring 99 can be upwards pull on the rotating ring 91 and the guide post 8 through the straight rod 98, and the first spring 4 upwards pushes the lower template 2, so that the upper template 6 and the lower template 2 can be tightly attached together under the matching action of the first spring 4 and the second spring 99, and the lens cone mold 7 can be firmly fixed by the upper template 6 and the lower template 2 during the injection molding process, and the injection molding quality of a product is ensured;
after the second driving lever 95 enters the horizontal section along the inclined groove section of the limiting groove 97, the second driving lever 95 can be matched with the horizontal section of the limiting groove 97 to lock the position of the second annular plate 96, so that the reaction force of the second spring 99 can provide stable pulling force for the straight rod 98.
The invention also provides a molding method for a cross-shaped double-channel lens barrel mold structure by using any one of the above parts, which comprises the following steps
S1: placing the lens barrel mould 7 into a mould groove on the lower template 2, and connecting the rubber inlet pipe 13 with an injection pump;
s2: the upper template 6 is attached to the lower template 2 under the pushing of the hydraulic rod 11; at the moment, the second heat preservation plate 18 and the first heat preservation plate 51 can respectively preserve heat of the upper template 6 and the lower template 2, so that the injection temperature of the lens cone mold 7 can be kept relatively stable during injection, in addition, the upper template 6 and the lower template 2 can be tightly attached together under the action of the locking device 9, further, the lens cone mold 7 is prevented from moving during injection, and the injection quality of a product is improved;
s3: the injection glue enters the main injection pipe 12 through the glue inlet pipe 13, and finally injection molding of the mold is completed through an injection molding opening on the inner side of the second annular pipe 16; because the distance from the main injection molding pipe 12 to the branch pipe 14 is the same, the time and the pressure of the injection molding glue entering each first annular pipe 15 are the same, and then the injection molding glue entering the first annular pipe 15 enters the second annular pipe 16 through two symmetrical connecting pipes 17 positioned outside the second annular pipe 16 simultaneously, so that the injection molding efficiency is improved compared with the injection mold arranged in a uniform shape.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a cross double-flow-passage lens barrel mould structure, includes base (1), its characterized in that: the die is characterized in that a lower template (2) is arranged at the top of the base (1), two fixing plates are fixedly connected to two sides of the lower template (2), a sliding rod (3) is inserted on each fixing plate in a sliding mode, the sliding rod (3) is fixedly connected with the base (1), a first spring (4) is sleeved on the part, located at the bottom of each fixing plate, of the corresponding sliding rod (3), a containing groove is formed in the bottom of the lower template (2), a heat preservation device (5) is arranged in each containing groove, an upper template (6) is arranged at the top of the lower template (2), mold grooves are formed in the opposite sides of the upper template (6) and the lower template (2), a lens cone mold (7) is arranged in each mold groove of the lower mold, a plurality of guide pillars (8) are fixedly connected to the top of the lower mold, the guide pillars (8) penetrate through the top of the upper template (6) in a sliding mode, and locking devices (9) are sleeved on the tops of the guide pillars (8), the top of cope match-plate pattern (6) is equipped with U-shaped board (10), U-shaped board (10) and base (1) fixed connection, and be connected with hydraulic stem (11) between U-shaped board (10) and cope match-plate pattern (6).
2. The cross-shaped dual-channel lens barrel mold structure according to claim 1, wherein: the heat preservation device (5) comprises a first heat preservation plate (51), a supporting plate (52) is fixedly connected to the bottom of the first heat preservation plate (51), a plurality of fixing rods are fixedly connected between the bottom of the supporting plate (52) and the top of the base (1), a baffle plate (53) is arranged at the bottom of the supporting plate (52), the fixing rods are all inserted on the baffle plate (53) in a sliding mode, the periphery of the baffle plate (53) is fixedly connected with the peripheral wall of the accommodating groove respectively, a telescopic air bag (54) is fixedly connected between the baffle plate (53) and the supporting plate (52), a plurality of air guide pipes (55) are inserted in the top of the supporting plate (52) in a penetrating mode, the top of each air guide pipe (55) is in a sealing design, the bottom of each air guide pipe (55) is communicated with the telescopic air bag (54), an insertion hole is formed in the top wall of the accommodating groove corresponding to the top of each air guide pipe (55), and is communicated with the mold groove, and the air duct (55) is inserted in the jack in a sliding manner, through holes (56) are formed in the two sides of the air duct (55), and strip-shaped air holes (57) are formed in the hole walls of the two sides of the jack, corresponding to the through holes (56).
3. The cross-shaped dual-channel lens barrel mold structure according to claim 1, characterized in that: the lens cone mould (7) comprises two main injection molding pipes (12), the two main injection molding pipes (12) are crossed and connected together, a funnel-shaped rubber inlet pipe (13) is fixedly connected with the top of the joint of the two main injection molding pipes (12), the rubber inlet pipe (13) is communicated with the two main injection pipes (12), both ends of the main injection pipes (12) are connected with branch pipes (14), the branch pipes (14) are communicated with the main injection pipes (12), and both ends of the branch pipe (14) are provided with a first annular pipe (15) and a second annular pipe (16), and the second annular pipe (16) is positioned at the inner side of the first annular pipe (15), the first annular pipe (15) is fixedly connected and communicated with the branch pipe (14), two connecting pipes (17) are connected between the second annular pipe (16) and the first annular pipe (15), and a plurality of injection molding openings are formed in the inner side of the second annular pipe (16).
4. The cross-shaped dual-channel lens barrel mold structure according to claim 1, wherein: the locking device (9) comprises a sleeve (90), the sleeve (90) is sleeved on the top of the guide post (8), the bottom of the sleeve (90) is fixedly connected with the top of the upper template (6), a rotating ring (91) is arranged inside the sleeve (90), the rotating ring (91) is rotatably sleeved on the guide post (8), two sides of the rotating ring (91) are fixedly connected with first deflector rods (92), guide grooves (93) are formed in the sleeve (90) corresponding to the first deflector rods (92), the first deflector rods (92) are inserted in the guide grooves (93), a first annular plate (94) is fixedly connected to the top of the rotating ring (91), two second deflector rods (95) are symmetrically and fixedly connected to the inner side of the first annular plate (94), a second annular plate (96) is arranged on the top of the first annular plate (94), and limiting grooves (97) are formed in positions, opposite to the two second deflector rods (95), of the second annular plate (96), the top of the second annular plate (96) is fixedly connected with a plurality of straight rods (98), the straight rods (98) penetrate through the top of the sleeve (90) in a sliding mode, the tops of the straight rods (98) are fixedly connected with the same circular plate, and the part, located outside the sleeve (90), of each straight rod (98) is sleeved with a second spring (99).
5. The cross-shaped dual-channel lens barrel mold structure according to claim 4, wherein: the top of the upper template (6) is provided with a groove, a second heat insulation plate (18) is fixedly connected in the groove, a heat insulation cover (19) is fixedly connected to the top of the upper template (6), the shape of the heat insulation cover (19) is the same as that of the rubber inlet pipe (13), and the bottom of the heat insulation cover (19) is communicated with the center of the die groove in the upper template (6).
6. The cross-shaped dual-channel lens barrel mold structure according to claim 4, wherein: the limiting groove (97) comprises an inclined groove section and a horizontal section from bottom to top, and the projection length of the limiting groove (97) in the vertical direction is smaller than that of the guide groove (93) in the vertical direction.
7. The cross-shaped dual-channel lens barrel mold structure according to claim 6, wherein: the guide groove (93) comprises a vertical section and an inclined section from bottom to top, and the inclined direction of the inclined section is the same as that of the inclined groove section.
8. The cross-shaped dual-channel lens barrel mold structure according to claim 4, wherein: the top of guide pillar (8) slides and is pegged graft and has locating lever (20), locating lever (20) and sleeve (90) top inner wall fixed connection.
9. The cross-shaped dual-channel lens barrel mold structure according to claim 8, wherein: the outer diameter of the second annular plate (96) is smaller than the inner diameter of the first annular plate (94), and the inner diameter of the second annular plate (96) is larger than the diameter of the guide post (8).
10. A molding method using the mold structure for a cross-type two-channel lens barrel according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1: placing the lens cone mould (7) into a mould groove on the lower template (2), and connecting the rubber inlet pipe (13) with an injection pump;
s2: the upper template (6) is attached to the lower template (2) under the pushing of the hydraulic rod (11);
s3: and the injection glue enters the main injection molding pipe (12) through the glue inlet pipe (13), and finally injection molding of the mold is completed through an injection molding opening on the inner side of the second annular pipe (16).
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| CN202210431386.6A CN114734582B (en) | 2022-04-22 | 2022-04-22 | Cross-shaped double-flow-passage lens barrel mold structure and forming method thereof |
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| CN114734582B (en) | 2022-12-02 |
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