CN109702961B - Forming die of aspheric surface optical lens - Google Patents
Forming die of aspheric surface optical lens Download PDFInfo
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- CN109702961B CN109702961B CN201711019255.2A CN201711019255A CN109702961B CN 109702961 B CN109702961 B CN 109702961B CN 201711019255 A CN201711019255 A CN 201711019255A CN 109702961 B CN109702961 B CN 109702961B
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Abstract
A forming mold for aspheric optical lens comprises a mold plate set having multiple ejector rod sets, multiple male mold blocks and multiple female mold blocks, wherein the male and female mold plates of the mold plate set are provided with multiple male and female mold insert holes, the male and female mold insert holes are processed simultaneously to have better concentric accuracy, the female mold block is provided with a female mold insert, the male mold block is provided with a male mold insert, a hollow male mold bushing and a fine adjustment gasket, one end of the male mold insert is located in the male mold bushing, the male mold insert and the female mold insert are combined into a mold cavity, another end is provided with a male mold ejector rod, a spring is sleeved with a high screw, the male mold ejector rod is combined with the other end of the male mold insert, a fixing screw penetrates through a support plate of the mold plate set and is combined with the other end of the male mold ejector rod, the support plate is connected with an ejector rod of an ejector device, thus lenses with different sizes can be manufactured by only replacing the male mold bushing and the male mold insert, in addition, the male mold insert can not incline when moving and returning.
Description
Technical Field
The present invention relates to a molding mold, and more particularly to a molding mold capable of simply replacing components to form aspheric optical lenses of different sizes.
Background
The existing mold for molding and manufacturing optical lens includes an upper fixing plate, a lower fixing plate, and a female mold plate and a male mold plate fixed on the upper fixing plate and the lower fixing plate, respectively, the upper fixing plate and the lower fixing plate can be driven by power to form a relatively attached mold assembly or a relatively separated mold assembly, at least one mold cavity is provided on the mold assembly surface of the corresponding female mold plate and the male mold plate according to the shape of the optical lens to be molded, usually tens of mold cavities are provided on a group of molds, a runner is provided on one end of the mold and is communicated with each mold cavity, the other end is connected with a shooting machine, so as to extrude the material of the molded lens into each mold cavity through the runner, and after the lens is molded, the molded lens finished product is ejected out from the mold cavities of the male mold plate and the female mold plate.
The mold cavity of the prior art is directly formed in the male mold plate and the female mold plate, and the shape and the size of the mold cavity of the mold are manufactured according to the size of a lens to be manufactured, so that the shape and the size of the mold cavity formed on the mold are fixed, when the lens with different sizes is manufactured by forming, the forming machine is required to stop producing, the female mold plate and the male mold plate are disassembled and taken out from the upper fixing plate and the lower fixing plate of the forming machine, the other group of male mold plate and female mold plate with the mold cavities with different sizes are arranged on the upper fixing plate and the lower fixing plate of the forming machine, and the lens can be manufactured at first, so that when products with different sizes are manufactured, the original mold is required to be disassembled and the other group of molds with different sizes are required to be assembled, thereby not only consuming labor and time and increasing the production cost.
Disclosure of Invention
In order to solve the problems and disadvantages of the prior art, an object of the present invention is to provide a mold for molding aspheric optical lenses, in which a male mold insert hole and a female mold insert hole are processed simultaneously to have a better concentric precision, and a plurality of ejector rod sets, male mold blocks and female mold blocks are disposed in a mold plate set, so that during production, only a combination of bushings and male mold inserts of different sizes needs to be replaced, and then the combination of bushings and male mold inserts and the female mold inserts form a mold cavity to manufacture lenses of different sizes; furthermore, the elastic inertia of the spring is utilized to naturally return the male mold insert, so that the male mold insert is ensured not to be interfered to generate inclination, and abnormal friction damage between the male mold insert and the male mold insert hole can be avoided.
In order to achieve the above object, the present invention provides a mold for molding an aspheric optical lens, which comprises a mold plate set, a plurality of ejector rod sets, a plurality of male mold blocks and a plurality of female mold blocks, wherein each ejector rod set, each male mold block and each female mold block are installed in the mold plate set;
the template group comprises a fixed plate and a movable plate which are combined with each other, and a bearing plate, a male template and a female template which are combined with each other, wherein the male template and the female template can relatively guide displacement, two adjacent plate surfaces are a template dividing surface, the male template is provided with a main runner and a branch runner, one end of the branch runner is communicated with the main runner, and a plurality of cooling pipelines which are communicated in a penetrating way are arranged in each plate body of the fixed plate, the female template and the male template; the male template is provided with a plurality of male mold insert sub-holes, the female template is provided with a plurality of female mold insert sub-holes, and the male template and the female template are mutually superposed and positioned and are simultaneously processed to manufacture hole patterns; the bearing plate is provided with a plurality of ejector rod holes, each ejector rod hole, each male die insert sub-hole and each female die insert sub-hole are positioned at opposite positions, an inner step surface is formed in each ejector rod hole, the bearing plate is provided with a first ejector plate and a second ejector plate which are mutually combined at positions corresponding to each ejector rod hole, and the second ejector plate is mutually connected with an ejector rod;
the ejector rod group is provided with a male die ejector rod, a first-class high screw and a fixing screw, the male die ejector rod is a hollow rod body, an outer step surface is formed on the outer wall surface, a rod hole penetrating through one end part of the male die ejector rod is formed in one end part of the male die ejector rod, a first inner turning surface, a second inner turning surface and a third inner turning surface are formed on the inner wall surface, the inner diameters of the turning surfaces are different, a spring is arranged in the male die ejector rod, one end of the spring abuts against the first inner turning surface, the male die ejector rod penetrates through the ejector rod hole of the bearing plate, and the outer step surface of the male die ejector rod is opposite to the inner step surface formed by the ejector rod hole and forms a space at intervals; one end of the high screw is provided with a thread, the other end of the high screw is provided with a screw head, one end with the thread penetrates through the spring and the rod hole of the male die ejector rod and protrudes outside, the screw head of the high screw is relatively positioned on the second inward turning surface of the male die ejector rod, and two ends of the spring respectively abut against the screw head and the first inward turning surface; one end of the fixing screw is provided with a thread, the other end of the fixing screw is provided with a screw head, and the fixing screw penetrates through the second ejector plate and the first ejector plate to be combined with the male die ejector rod;
the male module comprises a male mold insert, a male mold bushing and a fine adjustment gasket, wherein the male mold insert is a long column, one end part of the male mold insert is a male mold rod with a reduced rod diameter, the end surface of the male mold rod is provided with a first recess, the end surface of the other end part of the male mold rod is provided with a screw hole in a recessed manner, the male mold insert is arranged in the male mold insert hole of the male mold plate in a penetrating manner, and the screw hole of the male mold rod is combined with the threads at one end part of the high screws; the male die bushing is internally provided with a bushing hole, one end surface of the male die bushing is provided with a second concave cavity which is concave, the male die bushing is arranged at a male die insert sub-hole of the male die plate, the male die rod can be slidably arranged in the bushing hole in a penetrating way, so that a male die cavity is formed by the first concave cavity and the second concave cavity, the male die cavity is in a piston shape, the fine adjustment gasket is arranged on the equal-height screws, the equal-height screws are fixedly combined with the screw holes of the male die insert, and a space S is formed between the screw heads of the equal-height screws and the second inward turning surface in the male die ejector rod;
the female mold block comprises a female mold insert, a fine adjustment gasket and a fixing screw, the female mold insert is a long column, one end of the female mold rod is a female mold rod with a reduced rod diameter, a female mold cavity is formed in one end face of the female mold rod, a screw hole is formed in the other end face of the female mold rod in an inwards concave mode, the female mold insert is arranged in the female mold insert, the fine adjustment gasket is arranged at the tail end of the female mold insert, the fixing screw penetrates through the fixing plate and the fine adjustment gasket to be mutually combined and fixed with the screw hole of the female mold insert, a mold cavity is formed by the female mold cavity, the first recess and the second recess, and the mold cavity is communicated with the other end of the branch channel.
In the molding mold for aspheric optical lens, an end of the male mold insert hole is formed with an inwardly concave positioning groove, the male mold insert hole is communicated with the positioning groove, the inner diameter of the positioning groove is larger than the aperture of the male mold insert hole, an end of the male mold bushing is provided with a protrusion, the protrusion is located at the positioning groove, a pressing block is arranged, and a fixing member is combined with the pressing block to press and fix the male mold bushing located on the male mold plate on the parting surface of the male mold plate.
In the molding mold for aspheric optical lens, the carrier plate has a body, a chamber is formed in a side of the body adjacent to the movable plate, a plurality of ejector rod holes penetrate through the body and are communicated with the chamber, and the first ejector plate and the second ejector plate are disposed in the chamber.
In an embodiment of the present invention, the female mold plate and the fixing plate are provided with a mounting hole, the mounting hole is provided with a flow channel assembly, the main flow channel penetrates through the flow channel assembly, the fixing plate penetrates through the fixing hole and is provided with a plurality of fixing holes, and each fixing hole and each female mold insert hole surround the outer ring of the flow channel assembly.
In the above molding mold for aspheric optical lens, the outer diameter of the long cylinder of the female mold insert and the outer diameter of the male mold bushing are equal to the outer diameter of the long cylinder of the male mold insert, i.e. the error of the outer diameter dimension is ± 3 μm.
By applying the technical means, the invention at least can achieve the following effects:
the male mold insert sub-hole arranged on the male mold plate and the female mold insert sub-hole arranged on the female mold plate are processed and formed into a hole pattern by a processing machine after the male mold plate and the female mold plate are superposed and positioned, so that the male mold insert sub-hole and the female mold insert sub-hole which are formed and positioned at opposite positions are positioned at the same center, and the concentric precision is better.
When the male die insert is moved reversely and reset, the ejector rod moves and simultaneously moves the fixed male die ejector rod, and drives the equal-height screws to forcibly return to the distance of the space S, at the moment, the elastic inertia of the spring is utilized to naturally return the male die insert, so that the male die insert is ensured not to interfere with the male die insert to cause inclination, and abnormal friction damage between the male die insert and the hole of the male die insert can be avoided.
Furthermore, when the male and female mold plates are closed each time, the high pressure formed in the mold cavity is the same and stable, which can assist in accurately positioning the male mold insert.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a partially exploded perspective view (1) of the present invention.
Fig. 3 is a partially exploded perspective view (2) of the present invention.
Fig. 4 is a partially exploded perspective view (3) of the present invention.
Fig. 5 is an exploded perspective view of the ejector pin set, the male module and the female module of the present invention.
Fig. 6 is an exploded perspective view of the ejector pin assembly of the present invention.
Fig. 7 is an exploded perspective view of the male and female modules of the present invention.
Fig. 8 is an exploded perspective view of the male and female modules of the present invention.
Fig. 9 is a schematic cross-sectional view of the present invention.
Fig. 10 is an enlarged cross-sectional view of the present invention.
FIG. 11 is a schematic diagram of the operation of the present invention.
FIG. 12 is an enlarged view of a portion of the present invention.
Description of reference numerals:
11 the ejector rod of the movable plate 110
12 fixing plate 131 body
132 ejector rod hole 133 first ejector plate
134 second ejector plate 1341 fixing hole
14 male template 141 male mold sub-hole
15 female template 16 runner assembly
21 male mold ejector rod 211 outer step surface
213 equal height screw with first inward turning surface 22
220 spring 23 fixing screw
31 male die insert 32 male die bush
33 pressing block 34 fine-tuning gasket
41 female mold insert 42 fine tuning shim
43 set screws.
Detailed Description
Referring to fig. 1, 2 and 5, the mold for molding an aspheric optical lens according to the present invention includes a mold plate set 10, wherein the mold plate set 10 is assembled with a plurality of ejector pin sets 20, a plurality of male mold blocks 30 and a plurality of female mold blocks 40;
the template set 10 includes a movable plate 11, a fixed plate 12, a supporting plate 13, a male template 14 and a female template 15. The adjacent plate surfaces of the male mold plate 14 and the female mold plate 15 are a parting surface, the male mold plate 14 is provided with a plurality of guide pillars 140, the female mold plate 15 is provided with a plurality of guide holes 150, the guide holes 150 can be sleeved on the guide pillars 140, so that the female mold plate 15 can be separated from or attached to the male mold plate 14; furthermore, a plurality of cooling pipes 101 may be disposed in each of the fixing plate 12, the female mold plate 15 and the male mold plate 14 to cool each of the plates, which is not further described in detail in the prior art;
referring to fig. 2, 3 and 9, the movable plate 11, the carrier plate 13 and the male mold plate 14 are sequentially fixed, wherein the male mold plate 14 has a plurality of male mold insert sub-holes 141, a concave positioning groove 142 is formed at one end of each male mold insert sub-hole 141 and is communicated with the male mold insert sub-hole 141, the inner diameter of the positioning groove 142 is larger than the aperture of the male mold insert sub-hole 141, and the male mold insert sub-holes 141 are annularly arranged as shown in the figure; the movable plate 11 is provided with an opening 111 in a penetrating manner, an ejector rod 110 is provided at the opening 111, and the ejector rod 110 is controlled and driven by an ejector device in the prior art to move back and forth;
the carrier plate 13 includes a body 131, a first ejector plate 133 and a second ejector plate 134, a chamber 130 is formed at one side of the body 131 adjacent to the movable plate 11, a plurality of ejector rod holes 132 are formed through the body 131, each ejector rod hole 132 is communicated with the chamber 130, two different rod diameters are formed in the long axis direction of the ejector rod hole 132, and an inner step surface 1321 is formed between the two rod diameters; the containing chamber 130 is opposite to the ejector rod 110 in the opening 111, the containing chamber 130 is internally provided with the first ejector plate 133 and the second ejector plate 134, the first ejector plate 133 is provided with a plurality of through holes 1331 in a penetrating manner, the second ejector plate 134 is provided with a plurality of fixing holes 1341 in a penetrating manner, each through hole 1331 corresponds to each fixing hole 1341, and the first ejector plate 133 and the second ejector plate 134 are mutually overlapped and fixed by a plurality of rods and fixing pieces;
referring to fig. 2, 4 and 9, the mother board 15 and the fixing board 12 are fixed by a plurality of bars and fixing members, the mother board 15 and the fixing board 12 are provided with a mounting hole communicated with each other, the mounting hole is provided with a flow channel assembly 16, and the flow channel assembly 16 is provided with a main flow channel 161 in a penetrating manner; the fixing plate 12 is provided with a plurality of fixing holes 121, each fixing hole 121 surrounds the outer ring of the runner assembly 16, the mother plate 15 is provided with a plurality of mother mold insert sub-holes 151, each mother mold insert sub-hole 151 is provided around the outer ring of the main runner 161, each fixing hole 121 corresponds to each mother mold insert sub-hole 151, one end of each mother mold insert sub-hole 151 is provided with a positioning groove 152 with a hole enlarged, and the positioning groove 152 corresponds to the fixing plate 12; the female mold plate 15 is formed with a plurality of runners 153 between the surfaces of the plates abutting the male mold plate 14, and one end of each runner 153 is interconnected with the main runner 161 to provide plastic into the mold cavity of the mold.
Referring to fig. 9, when the male mold insert sub-holes 141 of the male mold plate 14 and the female mold insert sub-holes 151 of the female mold plate 15 are processed, the male mold plate 14 and the female mold plate 15 are positioned in an overlapping manner, and the processing machine processes the corresponding male mold insert sub-holes 141 and female mold insert sub-holes 151 simultaneously to form the hole patterns of the male mold insert sub-holes 141 and female mold insert sub-holes 151, and simultaneously grinds the hole walls thereof, so that the center lines of the male mold insert sub-holes 141 and female mold insert sub-holes 151 are accurately located at the same center because the two are processed simultaneously.
Referring to fig. 3, 5, 6, 9 and 10, each of the pin sets 20 includes a male mold eject rod 21, an equal height screw 22 and a fixing screw 23, wherein the male mold eject rod 21 is a hollow rod body having two different rod diameters formed in a long axial direction, an outer step surface 211 is formed between the two rod diameters, a rod hole 212 is formed through an end surface of one end of the male mold eject rod 21, a screw hole 216 is formed inside the other end of the male mold eject rod, a diameter of the rod hole 212 is smaller than an inner diameter of the male mold eject rod 21 to form a first inner turning surface 213, and a second inner turning surface 214 and a third inner turning surface 215 having different diameters are formed on an inner wall surface of the male mold eject rod 21 in sequence, wherein a diameter of the third inner turning surface 215 is larger than that of the second inner turning surface 214, and a diameter of the second inner turning surface 214 is larger than that of the first inner turning surface 213, that is, the male mold ejection rod 21 has the first inner turning surface 213, the second inner turning surface 214 and the third inner turning surface 215 from the end having the rod hole 212 toward the other end; a spring 220 is disposed inside the male mold eject rod 21, one end of the spring 220 abuts against the first inward turning surface 213, the male mold eject rod 21 is disposed through the eject rod hole 132 of the body 131 of the carrier plate 13, the outer step surface 211 thereof corresponds to the inner step surface 1321 formed by the eject rod hole 132, a gap P is formed therebetween, and the gap P is an eject stroke, which is a maximum distance that the male mold eject rod 21 can move relative to the eject rod hole 132 of the carrier plate 13;
the equal-height screw 22 has a screw thread at one end and a screw head 221 at the other end, the equal-height screw 22 penetrates through the spring 220 and the rod hole 212 of the male mold ejector rod 21 by the end with the screw thread and protrudes outside, the screw head 221 of the equal-height screw 22 is relatively positioned on the second inward turning surface 214 of the male mold ejector rod 21, and two ends of the spring 220 respectively abut against the screw head 221 and the first inward turning surface 213;
the fixing screw 23 has a screw thread at one end and a screw head at the other end, the fixing screw 23 is combined with the screw hole 216 of the male mold ejector rod 21 by penetrating through the second ejector plate 134 and the first ejector plate 133, so that the end of the male mold ejector rod 21 is abutted against the first ejector plate 133, and when the second ejector plate 134 is pushed by the ejector rod 110, the male mold ejector rod 21 is displaced.
Referring to fig. 3, 5, 7, 8 and 9, each male mold block 30 includes a male mold insert 31, a male mold bushing 32, a pressing block 33 and a fine adjustment spacer 34, each male mold insert 31 is a long cylinder, one end of the male mold insert 31 is a male mold rod 310 with a rod diameter reduced, a first recess 311 is formed on an end surface of the male mold rod 310, a screw hole 312 is recessed on an end surface of the other end, and the male mold insert 31 is inserted into the male mold insert hole 141 of the male mold plate 14;
the male mold liner 32 has a liner hole 322 therein, one end of the male mold liner 32 is a protrusion 323 and the end surface thereof is formed with a second concave recess 321, the male mold liner 32 is disposed in the male mold insert sub-hole 141 and is located at the positioning groove 142 by the protrusion 323, as shown in fig. 2; the pressing block 33 is disposed on the male mold plate 14 and opposite to the male mold bush 32, the pressing block 33 is combined with the male mold plate 14 by a fixing member and presses and fixes the male mold bush 32 on the male mold plate 14; the male mold rod 310 of the male mold insert 31 is slidably disposed in the bushing hole 322, such that the first cavity 311 and the second cavity 321 form a male mold cavity, which is in the shape of a piston; the fine adjustment pad 34 is located between the male mold insert 31 and the male mold ejector rod 21, and the high screws 22 penetrate through the fine adjustment pad 34 and are fixed in the screw holes 312 of the male mold insert 31;
referring to fig. 12, after the high screws 22 penetrate through the spring 220, the rod hole 212 of the male mold ejector rod 21, the fine tuning pad 34 and the screw hole 312 of the male mold insert 31, and are fixed, a space S is formed between the screw head 221 of the high screws 22 and the second inward turning surface 214 in the male mold ejector rod 21, and the preferred distance of the space S is 0.1 mm, so that the male mold insert 31 and the male mold ejector rod 21 are not completely fastened.
Referring to fig. 4, 5, 8 and 9, each of the female mold blocks 40 includes a female mold insert 41, a fine adjustment gasket 42 and a fixing screw 43, wherein the female mold insert 41 is a long cylinder, one end of the female mold insert 41 is a female mold rod 410 with a reduced rod diameter, one end of the female mold rod 410 is formed with a female mold cavity 411, the other end of the female mold rod is a protrusion 413 and is provided with a screw hole 412 in an end surface, the female mold insert 41 is inserted into the female mold insert hole 151 of the female mold plate 15 and the protrusion 413 is located in the positioning groove 152, the fine adjustment gasket 42 is located in the female mold insert 41 and is located in the positioning groove 152, and the fixing screw 43 penetrates through the fine adjustment gasket 42 and is fixed to the screw hole 412 of the female mold insert 41.
Referring to fig. 9 and 10, the male mold insert hole 141 and the female mold insert hole 151 are simultaneously machined and the hole walls thereof are simultaneously ground, so that the center lines of the male mold insert hole 141 and the female mold insert hole 151 are precisely located at the same center, the male mold bushing 32 and the male mold insert 31 both move based on the male mold insert hole 141, and the female mold insert 41 moves based on the female mold insert hole 151 and both move based on the same reference, thereby achieving better concentric accuracy.
The mold cavity for forming the lens is composed of the female mold cavity 411, the first cavity 311 and the second cavity 321, if the sizes of the lenses to be formed are different, the male mold bushing 32 with another size can be replaced, namely the second cavity 321 with another size is provided, the male mold bushing 32 with another size can be assembled in the bushing hole 322 penetrating the male mold bushing 32 with the original male mold insert 31, the female mold 411 is matched to form a mold cavity with another size, the lens with another size can be formed, when the outer diameter of the manufactured lens is changed, only the male mold bushing 32 needs to be replaced, the whole mold plate does not need to be replaced, and the manufacturing cost can be saved.
Furthermore, when the male mold plate 14 and the female mold plate 15 are attached to each other to complete the mold closing, a mold cavity is provided between the male mold cavity and the female mold cavity 411 formed by the first cavity 311 and the second cavity, and the mold cavity is connected to the other end of the branch channel 153, so that the plastic for manufacturing the optical lens enters the male mold cavity and the female mold cavity 411 through the branch channel 153 from the main channel 161 of the channel assembly 16, as shown in fig. 11, after the lens is molded in the mold cavity, the female mold plate 15 and the female mold insert 41 thereof are separated from the male mold plate 14 and the male mold insert 31 and the male mold liner 32, when the ejector rod 110 is pushed to the second ejector plate 134 and the first ejector plate 133 of the carrier plate 13, the fine tuning gasket 34 and the male mold insert 31 are pushed in sequence by the male mold ejector rod 21, the end of the male mold insert 310 of the male mold insert 31 having the first cavity 311 can push the molded lens out of the male mold cavity, since the male mold insert 31 is comprehensive and parallel to the male mold insert hole 141 in the ejecting direction, the lens is ejected in an evenly stressed manner, thereby ensuring the surface shape accuracy of the lens.
Referring to fig. 12, the male mold insert 31 moves in the opposite direction to return, the ejector drives the ejector rod 110 to move and simultaneously fix the male mold ejector rod 21 to move, and drives the high screws 22 to forcibly return to the distance of the space S, at this time, the male mold insert 31 naturally returns by using the elastic inertia of the spring 220, so that the male mold insert 31 is ensured not to interfere with and incline the male mold insert 31, and further, abnormal friction damage between the male mold insert 31 and the male mold insert hole 141 can be avoided.
If the inertia of the spring 220 returns to the original position and the male mold insert 31 cannot be precisely positioned within the distance S, the high pressure formed in the mold cavity is the same and stable during each mold closing process, thereby assisting in precisely positioning the male mold insert 31.
Claims (6)
1. A forming die for aspheric optical lens is characterized in that the forming die comprises a die plate group, a plurality of ejector rod groups, a plurality of male modules and a plurality of female modules, wherein each ejector rod group, each male module and each female module are arranged in the die plate group;
the template group comprises a fixed plate and a movable plate which are combined with each other, and a bearing plate, a male template and a female template which are combined with each other, wherein the male template and the female template can relatively guide displacement, two adjacent plate surfaces are a template dividing surface, the male template is provided with a main runner and a branch runner, one end of the branch runner is communicated with the main runner, and a plurality of cooling pipelines which are communicated in a penetrating way are arranged in each plate body of the fixed plate, the female template and the male template; the male template is provided with a plurality of male mold insert sub-holes, the female template is provided with a plurality of female mold insert sub-holes, and the male template and the female template are mutually superposed and positioned and are simultaneously processed to manufacture hole patterns; the bearing plate is provided with a plurality of ejector rod holes, each ejector rod hole, each male die insert sub-hole and each female die insert sub-hole are positioned at opposite positions, an inner step surface is formed in each ejector rod hole, the bearing plate is provided with a first ejector plate and a second ejector plate which are mutually combined at positions corresponding to each ejector rod hole, and the second ejector plate is mutually connected with an ejector rod;
the ejector rod group is provided with a male die ejector rod, a first-class high screw and a fixing screw, the male die ejector rod is a hollow rod body, an outer step surface is formed on the outer wall surface, a rod hole penetrating through one end part of the male die ejector rod is formed in one end part of the male die ejector rod, a first inner turning surface, a second inner turning surface and a third inner turning surface are formed on the inner wall surface, the inner diameters of the turning surfaces are different, a spring is arranged in the male die ejector rod, one end of the spring abuts against the first inner turning surface, the male die ejector rod penetrates through the ejector rod hole of the bearing plate, and the outer step surface of the male die ejector rod is opposite to the inner step surface formed by the ejector rod hole and forms a space at intervals; one end of the high screw is provided with a thread, the other end of the high screw is provided with a screw head, one end with the thread penetrates through the spring and the rod hole of the male die ejector rod and protrudes outside, the screw head of the high screw is relatively positioned on the second inward turning surface of the male die ejector rod, and two ends of the spring respectively abut against the screw head and the first inward turning surface; one end of the fixing screw is provided with a thread, the other end of the fixing screw is provided with a screw head, and the fixing screw penetrates through the second ejector plate and the first ejector plate to be combined with the male die ejector rod;
the male module comprises a male mold insert, a male mold bushing and a fine adjustment gasket, wherein the male mold insert is a long column, one end part of the male mold insert is a male mold rod with a reduced rod diameter, the end surface of the male mold rod is provided with a first recess, the end surface of the other end part of the male mold rod is provided with a screw hole in a recessed manner, the male mold insert is arranged in the male mold insert hole in a penetrating manner, and the screw hole of the male mold rod is combined with the threads at one end part of the high screws; the male die bushing is internally provided with a bushing hole, one end surface of the male die bushing is provided with a second concave cavity which is concave, the male die bushing is arranged at a male die insert hole of the male die plate, the male die rod can be slidably arranged in the bushing hole in a penetrating way, so that the first concave cavity and the second concave cavity form a male die cavity, the fine adjustment gasket is arranged on the equal-height screws, the equal-height screws are combined and fixed in the screw holes of the male die insert, and a space S is formed between the screw heads of the equal-height screws and the second inward turning surface in the male die ejector rod;
the female mold block comprises a female mold insert, a fine adjustment gasket and a fixing screw, the female mold insert is a long column, one end of the female mold rod is a female mold rod with a reduced rod diameter, a female mold cavity is formed in one end face of the female mold rod, a screw hole is formed in the other end face of the female mold rod in an inwards concave mode, the female mold insert is arranged in the female mold insert, the fine adjustment gasket is arranged at the tail end of the female mold insert, the fixing screw penetrates through the fixing plate and the fine adjustment gasket to be mutually combined and fixed with the screw hole of the female mold insert, a mold cavity is formed by the female mold cavity, the first recess and the second recess, and the mold cavity is communicated with the other end of the branch channel.
2. The mold for molding aspheric optical lens as defined in claim 1, wherein the male mold insert hole has an end formed with a concave positioning groove, the male mold insert hole is connected to the positioning groove, the inner diameter of the positioning groove is larger than the diameter of the male mold insert hole, one end of the male mold bushing has a protrusion located at the positioning groove, a pressing block is disposed at the positioning groove, a fixing member is used to combine with the pressing block, and the male mold bushing is pressed and fixed on the parting surface of the male mold plate.
3. The mold for molding aspheric optical lens as claimed in claim 1 or 2, wherein the carrier plate has a body, a chamber is formed in a side of the body adjacent to the movable plate, a plurality of pin holes are formed through the body and communicated with the chamber, and the first and second ejector plates are disposed in the chamber.
4. The mold for molding aspheric optical lens as claimed in claim 3, wherein the female mold plate and the fixing plate are provided with a mounting hole communicating with each other, the mounting hole is provided with a flow channel assembly, the main flow channel is located through the flow channel assembly, the fixing plate is provided with a plurality of fixing holes therethrough, and each fixing hole and each female mold insert hole are surrounded at the outer ring of the flow channel assembly.
5. The aspheric optical lens forming mold as claimed in claim 4, wherein the male mold cavity is piston-shaped.
6. The mold for molding aspherical optical lens as defined in claim 1, wherein the outer diameter of the long cylinder of the female mold insert, the outer diameter of the male mold insert and the outer diameter of the long cylinder of the male mold insert are equal, i.e., the outer diameter dimension has a tolerance of ± 3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019255.2A CN109702961B (en) | 2017-10-26 | 2017-10-26 | Forming die of aspheric surface optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019255.2A CN109702961B (en) | 2017-10-26 | 2017-10-26 | Forming die of aspheric surface optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109702961A CN109702961A (en) | 2019-05-03 |
| CN109702961B true CN109702961B (en) | 2021-07-09 |
Family
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| CN207432668U (en) * | 2017-10-26 | 2018-06-01 | 均英精密工业股份有限公司 | The molding die of aspheric optical lens |
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