CN113478703B - Method for manufacturing mold core with four-side curved three-dimensional optical texture - Google Patents

Method for manufacturing mold core with four-side curved three-dimensional optical texture Download PDF

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Publication number
CN113478703B
CN113478703B CN202110951393.4A CN202110951393A CN113478703B CN 113478703 B CN113478703 B CN 113478703B CN 202110951393 A CN202110951393 A CN 202110951393A CN 113478703 B CN113478703 B CN 113478703B
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texture
groove
optical
mold core
curved
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CN113478703A (en
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谢宽睿
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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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F11/00—Arrangements in shop windows, shop floors or show cases
    • A47F11/06—Means for bringing about special optical effects
    • A47F11/10—Arrangements of light sources
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/02—Rotary display stands
    • A47F5/025—Rotary display stands having mechanical drive, e.g. turntables
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/10—Adjustable or foldable or dismountable display stands
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • B29C2033/426—Stampers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention provides a method for manufacturing a four-side curved three-dimensional optical texture mold core. The method for manufacturing the four-side curved three-dimensional optical texture mold core comprises the following steps: s1, manufacturing a planar optical grade texture female die, designing an optical machine texture image file according to design requirements, and writing optical grade textures by using a UV photoetching machine; s2, UV transfer printing is carried out, and the optical textures are transferred to the composite board in a UV transfer printing mode; and S3, shaping the composite board, namely pressing the composite board with the optical texture into a four-side curved three-dimensional shape according to the size and positioning requirements of the product, and designing the optical texture on the inner surface or the outer surface of the composite board according to the product requirements. The method for manufacturing the four-curved three-dimensional optical texture mold core realizes the manufacture of optical nano-scale texture on the four-curved three-dimensional mold core, and provides diversified, more delicate and more visual-effect appearance and functional texture design and realization methods for products.

Description

Method for manufacturing mold core with four-side curved three-dimensional optical texture
Technical Field
The invention relates to the technical field of a four-side curved three-dimensional optical texture mold core, in particular to a method for manufacturing the four-side curved three-dimensional optical texture mold core.
Background
The core, as the name implies, refers to the precision part used for the critical operation of the central part of the mold. The common structure of the mold core is extremely complex, the processing difficulty is very large, the manufacturing cost is very high, the labor expenditure for manufacturing is greatly higher than that of the material, and the selection of the material of the mold core is directly related to the manufacturing cost of the mold and the service life of the mold.
In the prior art, the texture of the four-side curved texture three-dimensional mold is manufactured by etching, laser engraving, electric spark processing and other modes, the manufacturing precision is difficult to control, the diversified requirements of products cannot be met, the manufacturing is not fine and smooth enough, and the manufacturing of optical nano-scale texture on the four-side curved three-dimensional mold core cannot be realized.
Therefore, it is necessary to provide a method for manufacturing a mold core with a four-sided curved three-dimensional optical texture to solve the above-mentioned technical problems.
Disclosure of Invention
The invention provides a method for manufacturing a four-side curved three-dimensional optical texture mold core, which solves the problems that the texture precision of the four-side curved three-dimensional optical texture mold is inconvenient to control and the diversified requirements of products cannot be met.
In order to solve the technical problem, the method for manufacturing the four-side curved three-dimensional optical texture mold core provided by the invention comprises the following steps:
s1, manufacturing a planar optical grade texture female die, designing an optical machine texture image file according to design requirements, and writing optical grade textures by using a UV photoetching machine;
s2, UV transfer printing is carried out, and the optical textures are transferred to the composite board in a UV transfer printing mode;
s3, shaping the composite board, namely pressing the composite board with the optical texture into a four-side curved three-dimensional shape according to the size and positioning requirements of the product, and designing the optical texture on the inner surface or the outer surface of the composite board according to the product requirements;
and S4, manufacturing a mold core, namely respectively obtaining the product inner surface four-surface curved three-dimensional optical grade texture mold core and the product outer surface four-surface curved three-dimensional optical grade texture mold core in an electroforming mode according to the surface of the optical texture of the composite plate.
Preferably, in the step S1, when designing the texture pattern, a planar optical film having the same optical film structure is prepared in advance in consideration of the bending deformation and the stretching of the mother mold, and a planar texture structure required for the optical film body to be manufactured, and is placed on the surface of the pressed film mother body, and then heated in a vacuum state, and after heating and softening, the planar optical film is taken out and cooled by a cooling device, so that the planar optical texture mother mold is manufactured.
Preferably, in the step S2, the transfer printing is performed by using UV glue, the number of times of painting the UV glue is 5-7, the thickness is 0.04-0.05mm, and the composite board is made of PC material, or PET material or TPU material.
Preferably, in the step S3, when the composite board is shaped, the shrinkage of the composite board and the shrinkage of the product need to be considered, and the optical texture is transferred to the inner surface or the outer surface of the composite board and selected according to actual needs.
Preferably, in step S4, when the three-dimensional optical-grade texture core with four curved inner surfaces of the product is obtained, the optical texture is on the outer surface of the composite board, and when the three-dimensional optical-grade texture core with four curved outer surfaces of the product is obtained, the optical texture is on the inner surface of the composite board.
Preferably, the display device further comprises a display device on the tetrahedral stereo optical texture mold core, the display device comprises: a base; the mounting assembly is arranged at the top of the base and comprises a transparent outer cover, mounting round rods are fixedly connected to two sides of the bottom of the transparent outer cover, and arc-shaped clamping grooves are formed in one side of each mounting round rod; the movable vertical groove is formed in the top of the base; the positioning assembly is arranged at the bottom of the inner wall of the movable vertical groove and comprises a rotating transverse groove, one side of the inner wall of the rotating transverse groove is provided with a groove, one side of the inner wall of the groove is fixedly connected with a T-shaped rod, one end of the T-shaped rod is fixedly connected with a tension spring, a curved surface positioning rod is arranged in the rotating transverse groove, and one side of the curved surface positioning rod is provided with a contracting inner groove; the rotating assembly is arranged at the top of the base and comprises a rotating groove, a rotating disc is arranged inside the rotating groove, an inner bottom groove is formed in the bottom of the rotating disc, and a motor is fixedly connected to the bottom of the inner wall of the rotating groove.
Preferably, the transparent outer cover is arranged at the top of the base, an annular groove is formed in the top of the base, and the annular groove is matched with the transparent outer cover.
Preferably, the movable vertical groove is communicated with the rotary transverse groove, the movable vertical groove is matched with the mounting round rod, and a plurality of light supplement lamp heads are uniformly arranged at the top of the base.
Preferably, the rotary transverse groove is formed in the bottom of the inner wall of the movable vertical groove, one end of the tension spring is fixedly connected with one side of the inner wall of the contraction inner groove, and the curved surface positioning rod is matched with the arc-shaped clamping groove.
Preferably, the rotating groove is formed in the top of the base, and the output end of the motor is fixedly connected with the top of the inner wall of the inner groove in the bottom.
Compared with the prior art, the method for manufacturing the four-side curved three-dimensional optical texture mold core has the following beneficial effects:
the invention provides a method for manufacturing a four-surface curved three-dimensional optical texture mold core, which realizes the manufacture of optical nano-scale texture on the four-surface curved three-dimensional mold core, expands the application mode and range of the optical nano-scale texture, and provides a diversified, more delicate and more abundant visual effect appearance and functional texture design and realization method for products.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of a method for manufacturing a four-sided curved three-dimensional optical texture mold core according to the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of a method for manufacturing a mold core with four-sided curved three-dimensional optical textures according to the present invention;
FIG. 3 is a schematic view of the interior of the base shown in FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic top view of the base shown in FIG. 3;
FIG. 6 is a schematic view of the interior of the base shown in FIG. 5;
fig. 7 is an enlarged view of fig. 6 at B.
Reference numbers in the figures: 1. the device comprises a base, 2, an installation component, 21, a transparent outer cover, 22, an installation round rod, 23, an arc-shaped clamping groove, 3, a movable vertical groove, 4, a positioning component, 41, a rotary transverse groove, 42, a groove, 43, a T-shaped rod, 44, a tension spring, 45, a curved positioning rod, 46, a contraction inner groove, 5, a rotating component, 51, a rotating groove, 52, a rotating disc, 53, a bottom inner groove, 54, a motor, 6, an annular groove, 7 and a light supplementing lamp holder.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Referring to fig. 1, fig. 1 is a schematic flow chart of a manufacturing method of a four-side curved three-dimensional optical texture mold core according to a first embodiment of the present invention. The method for manufacturing the four-side curved three-dimensional optical texture mold core comprises the following steps:
s1, manufacturing a planar optical grade texture female die, designing an optical machine texture image file according to design requirements, and writing optical grade textures by using a UV photoetching machine;
s2, UV transfer printing is carried out, and the optical textures are transferred to the composite board in a UV transfer printing mode;
s3, shaping the composite board, namely pressing the composite board with the optical texture into a four-side curved three-dimensional shape according to the size and positioning requirements of the product, and designing the optical texture on the inner surface or the outer surface of the composite board according to the product requirements;
and S4, manufacturing a mold core, namely respectively obtaining the product inner surface four-surface curved three-dimensional optical grade texture mold core and the product outer surface four-surface curved three-dimensional optical grade texture mold core in an electroforming mode according to the surface of the optical texture of the composite plate.
In the step S1, when designing the texture pattern, the bending deformation and the stretching factor of the master mold need to be considered, and the planar texture structure required by the optical film body to be manufactured needs to be made into the planar optical film with the same optical film structure in advance, and the planar optical film is placed on the surface of the pressed film master body, then heated in a vacuum state, taken out after being heated and softened, and cooled by a cooling device, so as to manufacture the planar optical grade texture master mold.
In the step S2, UV glue is adopted for transfer printing, the painting times of the UV glue is 5-7 times, the thickness is 0.04-0.05mm, and the composite board is made of a PC material or a PET material or a TPU material.
The UV glue has certain stretchability after being cured, and cannot crack in high-pressure forming.
In the step S3, when the composite board is shaped, the shrinkage of the composite board and the shrinkage of the product need to be considered, and the optical texture is transferred to the inner surface or the outer surface of the composite board and selected according to actual needs.
In the step S4, when the product inner surface four-surface curved three-dimensional optical-grade texture mold core is obtained, the optical texture is on the outer surface of the composite board, and when the product outer surface four-surface curved three-dimensional optical-grade texture mold core is obtained, the optical texture is on the inner surface of the composite board.
Compared with the prior art, the method for manufacturing the four-side curved three-dimensional optical texture mold core has the following beneficial effects:
the manufacturing of the optical nano-scale texture is realized on the four-surface curved three-dimensional mold core, the application mode and the range of the optical nano-scale texture are expanded, and the design and the realization method of the appearance and the functionalized texture with diversified, finer and richer visual effect are provided for the product.
Second embodiment
Referring to fig. 2 to 7, a second embodiment of the present application provides another method for manufacturing a mold core with four-sided curved three-dimensional optical texture based on a method for manufacturing a mold core with four-sided curved three-dimensional optical texture provided by a first embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the difference between the manufacturing method of the four-side curved three-dimensional optical texture mold core provided in the second embodiment of the present application is that the manufacturing method of the four-side curved three-dimensional optical texture mold core further includes a display device for the four-side curved three-dimensional optical texture mold core, where the display device includes: a base 1; the mounting component 2 is arranged at the top of the base 1, the mounting component 2 comprises a transparent outer cover 21, mounting round rods 22 are fixedly connected to two sides of the bottom of the transparent outer cover 21, and arc-shaped clamping grooves 23 are formed in one side of each mounting round rod 22; the movable vertical groove 3 is formed in the top of the base 1; the positioning assembly 4 is arranged at the bottom of the inner wall of the movable vertical groove 3, the positioning assembly 4 comprises a rotating transverse groove 41, one side of the inner wall of the rotating transverse groove 41 is provided with a groove 42, one side of the inner wall of the groove 42 is fixedly connected with a T-shaped rod 43, one end of the T-shaped rod 43 is fixedly connected with a tension spring 44, a curved surface positioning rod 45 is arranged in the rotating transverse groove 41, and one side of the curved surface positioning rod 45 is provided with a contracting inner groove 46; the rotating assembly 5 is arranged at the top of the base 1, the rotating assembly 5 comprises a rotating groove 51, a rotating disc 52 is arranged inside the rotating groove 51, an inner bottom groove 53 is formed in the bottom of the rotating disc 52, and a motor 54 is fixedly connected to the bottom of the inner wall of the rotating groove 51.
The motor 54 is externally connected with a power supply, a corresponding control switch is arranged outside, the rotating speed of the motor 54 is designed to be 30 seconds per revolution, the transparent outer cover 21 can be made of toughened glass or transparent plastic, and only the inside of the transparent outer cover 21 can be seen clearly from the outside.
The transparent outer cover 21 is arranged on the top of the base 1, the top of the base 1 is provided with an annular groove 6, and the annular groove 6 is matched with the transparent outer cover 21.
The bottom of the transparent cover 21 is located inside the annular groove 6.
The movable vertical groove 3 is communicated with the rotary transverse groove 41, the movable vertical groove 3 is matched with the installation round rod 22, and a plurality of light supplement lamp heads 7 are uniformly arranged at the top of the base 1.
Can carry out the light filling through a plurality of light filling lamp holders 7 when night, conveniently observe, also can use the color lamp of different colours to promote pleasing to the eye degree.
The rotary transverse groove 41 is arranged at the bottom of the inner wall of the movable vertical groove 3, one end of the tension spring 44 is fixedly connected with one side of the inner wall of the contraction inner groove 46, and the curved surface positioning rod 45 is matched with the arc-shaped clamping groove 23.
One end of the curved surface positioning rod 45 is designed into a curved surface, and one end of the curved surface is positioned in the arc clamping groove 23.
The rotating groove 51 is arranged at the top of the base 1, and the output end of the motor 54 is fixedly connected with the top of the inner wall of the bottom inner groove 53.
The working principle of the method for manufacturing the four-side curved three-dimensional optical texture mold core provided by the invention is as follows:
when the processed four-surface curved three-dimensional optical texture mold core is placed on the rotating disc 52, the rotating disc 52 can be driven to rotate through the motor 54, and the rotating disc 52 drives the four-surface curved three-dimensional optical texture mold core above to rotate, so that a viewer can observe the whole four-surface curved three-dimensional optical texture mold core from one direction.
When the transparent outer cover 21 needs to be taken down, the transparent outer cover 21 can be rotated anticlockwise, the transparent outer cover 21 drives the installation round rod 22 to rotate, the installation round rod 22 is abutted with the cambered surface of the curved surface positioning rod 45 through the arc-shaped clamping groove 23, so that the installation round rod 22 and the curved surface positioning rod 45 can be directly separated when the installation round rod 22 is rotated, when the curved surface positioning rod 45 moves to the position below the movable vertical groove 3, the transparent outer cover 21 is pulled upwards, the transparent outer cover 21 drives the installation round rod 22 to ascend, the installation round rod 22 is separated from the base 1 from the movable vertical groove 3, and the transparent outer cover 21 is separated from the base 1;
when transparent dustcoat 21 is installed to needs, erect groove 3 through the activity and insert installation round bar 22 inside rotation groove 51, make the bottom of transparent dustcoat 21 fall into the inside of ring channel 6, clockwise rotation transparent dustcoat 21 drives installation round bar 22 clockwise rotation again, make installation round bar 22 extrusion curved surface locating lever 45, make curved surface locating lever 45 to the inside shrink of recess 42, curved surface locating lever 45 can not obstruct the rotation of installation round bar 22, installation round bar 22 continues to rotate, tension spring 44 promotes curved surface locating lever 45 and pushes the one end of locating lever 45 inside the installation of accomplishing transparent dustcoat 21 of arc draw-in groove 23.
Compared with the prior art, the method for manufacturing the four-side curved three-dimensional optical texture mold core has the following beneficial effects:
through installing a transparent dustcoat 21 on base 1, can be when placing the crooked three-dimensional optical texture mold core in four sides that accomplishes the preparation and carry out the show on rotating disc 52, provide the protective capacities to crooked three-dimensional optical texture mold core in four sides, drive rotating disc 52 through motor 54 simultaneously and rotate, drive crooked three-dimensional optical texture mold core in four sides and rotate in step, conveniently carry out all-round show for crooked three-dimensional optical texture mold core in four sides, can compare with the crooked three-dimensional optical texture mold core in four sides that makes at any time when crooked three-dimensional optical texture mold core in four sides makes, the flaw that produces in the convenient in-time discovery manufacturing process is handled, can accomplish transparent dustcoat 21's installation and dismantlement simultaneously through rotating transparent dustcoat 21, conveniently put into the inside of transparent dustcoat 21 with crooked three-dimensional optical texture in four sides and protect.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A method for manufacturing a four-side curved three-dimensional optical texture mold core is characterized by comprising the following steps:
s1, manufacturing a planar optical grade texture female die, designing an optical machine texture image file according to design requirements, and writing optical grade textures by using a UV photoetching machine;
s2, UV transfer printing is carried out, and the optical textures are transferred to the composite board in a UV transfer printing mode;
s3, shaping the composite board, namely pressing the composite board with the optical texture into a four-side curved three-dimensional shape according to the size and positioning requirements of the product, and designing the optical texture on the inner surface or the outer surface of the composite board according to the product requirements;
s4, manufacturing a mold core, namely respectively obtaining a product inner surface four-surface curved three-dimensional optical grade texture mold core and a product outer surface four-surface curved three-dimensional optical grade texture mold core in an electroforming mode according to the surface of the optical texture of the composite plate;
still include in the display device of three-dimensional optical texture mold core of four sides curved, the display device includes:
a base;
the mounting assembly is arranged at the top of the base and comprises a transparent outer cover, mounting round rods are fixedly connected to two sides of the bottom of the transparent outer cover, and arc-shaped clamping grooves are formed in one side of each mounting round rod;
the movable vertical groove is formed in the top of the base;
the positioning assembly is arranged at the bottom of the inner wall of the movable vertical groove and comprises a rotating transverse groove, one side of the inner wall of the rotating transverse groove is provided with a groove, one side of the inner wall of the groove is fixedly connected with a T-shaped rod, one end of the T-shaped rod is fixedly connected with a tension spring, a curved surface positioning rod is arranged in the rotating transverse groove, and one side of the curved surface positioning rod is provided with a contracting inner groove;
the rotating assembly is arranged at the top of the base and comprises a rotating groove, a rotating disc is arranged inside the rotating groove, an inner bottom groove is formed in the bottom of the rotating disc, and a motor is fixedly connected to the bottom of the inner wall of the rotating groove.
2. The method of claim 1, wherein in step S1, when designing the texture pattern, the method considers the bending deformation and stretching of the mother mold, and the planar texture structure required for the optical film body to be manufactured, and pre-forms a planar optical film having the same optical film structure, and places the planar optical film on the surface of the mold pressing mother body, and then heats the planar optical film in a vacuum state, and after heating and softening, the planar optical film is taken out and cooled by a cooling device to form the planar optical texture mother mold.
3. The method for manufacturing the mold core according to claim 1, wherein in step S2, UV glue is used for transfer printing, the number of times of coating the UV glue is 5-7, the thickness is 0.04-0.05mm, and the composite plate is made of PC material, PET material or TPU material.
4. The method for manufacturing the tetrahedral three-dimensional optical texture mold core according to the claim 1, wherein in the step S3, when the composite plate is shaped, the shrinkage of the product and the shrinkage of the composite plate need to be considered, and the optical texture is transferred to the inner surface or the outer surface of the composite plate according to the actual requirement.
5. The method of claim 1, wherein in step S4, when the mold core with the three-dimensional optical texture on the inner surface of the product is obtained, the optical texture is on the outer surface of the composite board, and when the mold core with the three-dimensional optical texture on the outer surface of the product is obtained, the optical texture is on the inner surface of the composite board.
6. The method as claimed in claim 1, wherein the transparent cover is disposed on top of the base, and an annular groove is formed on top of the base and is adapted to the transparent cover.
7. The method for manufacturing the four-side curved three-dimensional optical texture mold core according to claim 1, wherein the movable vertical groove is communicated with the rotary transverse groove and is matched with the installation round rod, and a plurality of light supplement lamp caps are uniformly arranged at the top of the base.
8. The method of claim 1, wherein the horizontal rotating groove is formed at the bottom of the inner wall of the vertical moving groove, one end of the tension spring is fixedly connected to one side of the inner wall of the internal contracting groove, and the curved positioning rod is fitted to the curved slot.
9. The method as claimed in claim 1, wherein the rotary slot is formed in the top of the base, and the output of the motor is fixedly connected to the top of the inner wall of the bottom inner slot.
CN202110951393.4A 2021-01-03 2021-08-18 Method for manufacturing mold core with four-side curved three-dimensional optical texture Active CN113478703B (en)

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CN2021200009571 2021-01-03

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CN113478703B true CN113478703B (en) 2022-11-01

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CN111516213A (en) * 2020-04-15 2020-08-11 李泽辉 Manufacturing method of high-precision texture injection mold

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