CN218985561U - Light guide column injection mold - Google Patents

Abstract

The utility model discloses a light guide column injection mold, which relates to the technical field of injection molds and comprises a first movable mold, a first fixed mold, a second movable mold and a second fixed mold, wherein the first fixed mold is provided with a first injection nozzle, the second fixed mold is provided with a second injection nozzle, the first movable mold and the second movable mold are both fixed on a rotating disk of a double-color machine, so that the rotating disk can drive the first movable mold and the second movable mold to rotate, the first fixed mold can be matched with the first movable mold and the second movable mold, the second fixed mold can also be matched with the first movable mold and the second movable mold, the first movable mold and the second movable mold both comprise a rear mold plate and a rear mold core arranged on the rear mold plate, polygonal bumps are formed on the upper end surfaces of the rear mold core, and forming parts for product injection molding are respectively arranged on corners of the polygonal bumps.

Description

Light guide column injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a light guide column injection mold.

Background

As described in the chinese patent application No. CN202220450397.4, "when a conventional single-color injection mold is used for molding, only one color is emitted, for example, two colors are needed on one product, and then the processes of painting and silk screen printing are needed, or one product is molded first and then is embedded into another mold for secondary molding, which is very high in cost and not environment-friendly.

In view of the above, the present utility model aims to provide a method for manufacturing a double-color filled diffusion diaphragm and a mold thereof, which uses two sets of molds on a double-color machine, wherein two injection nozzles sequentially inject two materials into a double-color product with obvious boundaries for forming the product, wherein the first injection nozzle injects the materials into a small cavity for molding, then the mold is opened but not ejected, the mold is rotated 180 degrees and then is closed, and then the second injection nozzle injects the other material into a large cavity with the first material, so that the two materials are stuck together and then the mold is opened for ejection for the second time, and a complete double-color product is injection molded, thereby manufacturing an integrated product with different colors and different materials, reducing the cost of production and processing, and obtaining good economic benefits.

Currently, many electronic devices use indicator lamps, and a plurality of indicator lamps located on the side surfaces are generally arranged. For the side indicator, a light guide part is generally used for guiding light of an LED lamp on a main board to the surface of a product. For electronic devices having waterproof requirements, sealing between the light guide and the housing is important.

In the prior art, in the production of pilot lamp, light guide part and casing also need adopt double-shot moulding, and transparent material is used for the light guide part, and another material is used for the casing, and both are integrated into one piece in same mould to guarantee that light guide part and casing closely combine together, make the water-proof effects improve.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme for solving the problems of the light guide column injection mold.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the first fixed die is provided with a first injection nozzle, the second fixed die is provided with a second injection nozzle, and the first movable die and the second movable die are both fixed on a rotating disc of a bicolor machine, so that the rotating disc can drive the first movable die and the second movable die to rotate, the first fixed die can be matched with the first movable die and the second movable die, and the second fixed die can also be matched with the first movable die and the second movable die;

the first movable mould and the second movable mould comprise a rear mould plate and a rear mould core arranged on the rear mould plate, polygonal protruding blocks are formed on the upper end surfaces of the rear mould core, forming parts for product injection molding are respectively arranged on corners of the polygonal protruding blocks, and the forming parts comprise first forming blocks which are matched with the corners of the polygonal protruding blocks in an aligned mode;

insert holes are respectively formed in the left side and the right side of the first forming block, and first forming inserts are respectively arranged in the insert holes;

the first fixed die and the second fixed die comprise a front die plate and a front die core arranged on the front die plate, a polygonal groove for accommodating the polygonal protruding block is arranged on the lower end face of the front die core, and a first forming groove for accommodating the first forming block is communicated with the corners of the polygonal groove.

As a further scheme of the utility model: the front mold core is provided with a plurality of through mounting holes which are matched with the first molding grooves in a one-to-one communication way, the mounting holes are internally and detachably provided with second molding inserts, and the end parts of the second molding inserts extend into the first molding grooves to be matched with each other to form an injection molding cavity.

As a further scheme of the utility model: a second forming groove communicated with the first forming groove is formed in the rear die core of the second movable die, and a third forming groove communicated with the first forming groove is formed in the first forming block of the second movable die.

As a further scheme of the utility model: the polygonal protruding block is provided with a plurality of secondary flow channels respectively communicated with the injection molding cavities, the front mold core is provided with a main flow channel communicated with the secondary flow channels, and the secondary flow channels are uniformly distributed in a circumferential array by taking the main flow channel as a center.

As a further scheme of the utility model: a pre-empty groove is reserved between the rear end of the first molding block and the polygonal protruding block, a second molding block in butt fit with the first molding block is arranged on the inner bottom surface of the first molding groove of the first fixed die, the injection molding cavity is divided into a left cavity and a right cavity which are independent relatively through butt fit of the first molding block and the second molding block, the left cavity and the right cavity are communicated with the secondary flow channel, and the inner bottom surface of the first molding groove of the second fixed die is a flat surface so that the left cavity and the right cavity are communicated.

Compared with the prior art, the utility model has the following beneficial effects:

1. through be equipped with the shaping portion that is used for product injection moulding respectively on the angle of polygon lug, shaping portion includes first shaping piece, and first shaping piece is counterpointed with the angle of polygon lug and is cooperated, makes can be equipped with a plurality of shaping cavities between front mould benevolence and the back mould benevolence to realize that many caves are moulded plastics, thereby in the injection process of once moulding plastics raw materials, can carry out the processing of a plurality of products, thereby improved production efficiency by a wide margin.

2. Insert holes are respectively formed in the left side and the right side of the first molding block, first molding inserts are respectively arranged in the insert holes, and the first movable die and the second movable die are respectively matched with the first fixed die and the second fixed die for injection molding, so that the molding of the light guide column is richer by changing different first molding inserts, and the injection molding of the mold is more flexible and changeable, and the application range is wider.

3. Compared with the prior art that the mold is formed by two sets of molds, the mold has better injection molding precision and obviously higher efficiency; compared with the traditional method of adding silk screen printing, paint spraying and the like on a monochromatic product, the utility model can obviously save cost, is energy-saving and environment-friendly, and in addition, when the utility model is used, the thickness of the product can be freely adjusted according to the actual demand of the product, and a thick product can be formed in a sub-mode, thereby reducing the period and saving the cost.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a cross-sectional view taken along the direction C-C in FIG. 2;

FIG. 4 is a partial view at D in FIG. 3;

FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 6 is a partial view at E in FIG. 5;

FIG. 7 is a cross-sectional view taken along the direction B-B in FIG. 2;

fig. 8 is a schematic structural view of a first movable die 1 in the present utility model;

fig. 9 is a schematic structural view of a second movable mold 3 according to the present utility model;

FIG. 10 is a partial view at H in FIG. 8;

FIG. 11 is a partial view at J in FIG. 9;

reference numerals and names in the drawings are as follows:

the injection molding machine comprises a first movable mold-1, a first fixed mold-2, a second movable mold-3, a second fixed mold-4, a first injection nozzle-5, a second injection nozzle-6, a rotary disk-7, a rear mold plate-8, a rear mold core-9, a polygonal projection-10, a molding part-21, a first molding block-22, a first molding insert-24, a front mold plate-25, a front mold core-26, a polygonal groove-27, a first molding groove-28, a mounting hole-29, a second molding insert-40, a second molding groove-41, a third molding groove-42, a second runner-43, a main runner-44, a pre-empty groove-45 and an injection molding cavity-50.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-11, a light guide column injection mold comprises a first movable mold 1, a first fixed mold 2, a second movable mold 3 and a second fixed mold 4, wherein a first nozzle 5 is arranged on the first fixed mold 2, a second nozzle 6 is arranged on the second fixed mold 4, the first movable mold 1 and the second movable mold 3 are both fixed on a rotary disk 7 of a bicolor machine, so that the rotary disk 7 can drive the first movable mold 1 and the second movable mold 3 to rotate, the first fixed mold 2 can be matched with the first movable mold 1 and the second movable mold 3, and the second fixed mold 4 can also be matched with the first movable mold 1 and the second movable mold 3;

the first movable die 1 and the second movable die 3 both comprise a rear die plate 8 and a rear die core 9 arranged on the rear die plate 8, a polygonal protruding block 10 is formed on the upper end surface of the rear die core 9, forming parts 21 for product injection molding are respectively arranged on corners of the polygonal protruding block 10, each forming part 21 comprises a first forming block 22, and the first forming blocks 22 are matched with corners of the polygonal protruding block 10 in an alignment manner;

insert holes are respectively formed in the left side and the right side of the first molding block 22, and first molding inserts 24 are respectively arranged in the insert holes;

the first fixed die 2 and the second fixed die 4 both comprise a front die plate 25 and a front die core 26 arranged on the front die plate 25, a polygonal groove 27 for accommodating the polygonal protruding block 10 is arranged on the lower end surface of the front die core 26, and a first forming groove 28 for accommodating the first forming block 22 is communicated with the corners of the polygonal groove 27;

in the injection molding process, the first molding groove 28 and the molding part 21 are matched to form an injection molding cavity 50, two sets of molds are used on a bicolor machine, the first injection nozzle 5 and the second injection nozzle 6 are used for injecting two materials in sequence, so that the two materials are respectively used for molding the light guide column and the shell, after injection molding raw materials for molding the light guide column are injected into the molding cavity formed by matching the first movable mold 1 and the first fixed mold 2 by the first injection nozzle 5, after the injection molding raw materials injected for the first time are solidified, the front mold core 26 and the rear mold core 9 are opened under the drive of the front mold plate 25 and the rear mold plate 8 but are not ejected, the rotary disk 7 drives the first movable mold 1 and the second movable mold 3 to rotate 180 degrees, the second injection nozzle 6 is used for injecting the injection molding raw materials for molding the shell into the molding cavity formed by matching the second movable mold 3 and the first fixed mold 2, after the injection molding raw materials injected for the second time are solidified, the light guide part and the shell are injection molded together, and then the mold is opened, so that the integral indicator lamp can be ejected, thus the integral injection molding products with different colors can be manufactured, and the economic benefits of different products can be manufactured are realized, and the production cost is reduced.

Meanwhile, by the design of the polygonal protruding block 10, after the front die core 26 and the rear die core 9 are assembled, the polygonal protruding block 10 is embedded into the polygonal groove 27 for alignment matching, so that the front die core 26 and the rear die core 9 are better aligned for matching, the relative positioning between the front die core 26 and the rear die core 9 is more accurate, and the molding precision of the light guide column and the shell is higher;

the forming parts 21 for product injection molding are respectively arranged at the corners of the polygonal protruding block 10, the forming parts 21 comprise the first forming blocks 22, and the first forming blocks 22 are matched with the corners of the polygonal protruding block 10 in an alignment manner, so that a plurality of forming cavities can be arranged between the front die core 26 and the rear die core 9, and multi-cavity injection molding is realized, and a plurality of products can be processed in the injection process of one injection molding raw materials, so that the production efficiency is greatly improved;

insert holes are respectively formed in the left side and the right side of the first molding block 22, first molding inserts 24 are respectively formed in the insert holes, and in the process of matching injection molding on the first fixed die 2 and the second fixed die 4, the first movable die 1 and the second movable die 3 enable the molding of the light guide column to be richer by changing different first molding inserts 24, so that the injection molding of the mold is more flexible and changeable, and the application range is wider;

compared with the prior art that the mold is formed by two sets of molds, the mold has better injection molding precision and obviously higher efficiency; compared with the traditional method of adding silk screen printing, paint spraying and the like on a monochromatic product, the utility model can obviously save cost, and is energy-saving and environment-friendly. In addition, when the utility model is used, the thickness of the product can be freely adjusted according to the actual demand of the product, and a thick product can be divided into 2 times of molding, thereby reducing the period and saving the cost.

In the embodiment of the utility model, a plurality of mounting holes 29 penetrating through the front mold core 26 are arranged on the front mold core 26, the mounting holes 29 are in one-to-one communication fit with the first molding grooves 28, a second molding insert 40 is detachably and fixedly arranged in the mounting holes 29, and the end part of the second molding insert 40 extends into the first molding grooves 28 to be matched with the first molding grooves to form an injection molding cavity 50;

in the process of matching and installing the light guide part and the shell, the second molding insert 40 stretches into the first molding groove 28 to be matched to form the injection molding cavity 50, so that the upper surface of the light guide column can be molded into a specific shape, and the light guide part and the shell are connected more tightly;

meanwhile, the second molding insert 40 can be matched with the first molding block 22 and the first molding insert 24 for molding the light guide column in the first injection molding process of the injection molding raw material, and the second molding insert 40 can be matched with the molded light guide column for molding the shell in the second injection molding process of the injection molding raw material, so that the molding of the light guide column and the shell is more flexible, and the application range of the utility model is wider.

In the embodiment of the utility model, a second molding groove 41 communicated with the first molding groove 28 is formed on the rear mold core 9 of the second movable mold 3, and a third molding groove 42 communicated with the first molding groove 28 is formed on the first molding block 22 of the second movable mold 3;

in the process of the second injection molding of the injection molding raw material, the second molding groove and the third molding groove 42 can be matched with the molded light guide column for molding the shell, so that the molding of the shell is richer.

In the embodiment of the present utility model, a plurality of secondary runners 43 respectively communicating with a plurality of injection molding cavities 50 are provided on the polygonal bump 10, a main runner 44 communicating with the secondary runners 43 is provided on the front mold core 26, and the plurality of secondary runners 43 are uniformly distributed in a circumferential array with the main runner 44 as a center;

the inflow of the injection molding raw materials in each injection molding cavity 50 is facilitated, so that the injection molding in each injection molding cavity 50 can be synchronously performed, the injection molding in each injection molding cavity 50 is more balanced, the integral injection molding of the product is more uniform, and the improvement of production efficiency is facilitated.

In the embodiment of the utility model, a pre-empty groove 45 is reserved between the rear end of the first molding block 22 and the polygonal protruding block 10, a second molding block in abutting fit with the first molding block 22 is arranged on the inner bottom surface of the first molding groove 28 of the first fixed mold 2, the injection molding cavity 50 is divided into a left cavity and a right cavity which are relatively independent through the abutting fit of the first molding block 22 and the second molding block, the left cavity and the right cavity are communicated with the secondary runner 43, and the inner bottom surface of the first molding groove 28 of the second fixed mold 4 is a straight surface so as to be communicated with the left cavity and the right cavity.

The left cavity and the right cavity are communicated with the secondary runner 43 through the pre-empty groove 45, so that the feeding of the injection molding cavity 50 is facilitated, and the molding of the injection molding cavity 50 is richer through the arrangement of the second molding block;

through setting up left chamber and right chamber, make the knot position of leaded light post have 2 at least, the leaded light post is fixed with the casing cooperation, and its assembly method is detained to the hole, makes the installation of leaded light post on the card body more stable, is favorable to improving the product yield.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a leaded light post injection mold which is characterized in that, including first movable mould (1), first fixed mould (2), second movable mould (3) and second cover half (4), be provided with first mouth (5) on first fixed mould (2), be provided with second mouth (6) on second cover half (4), first movable mould (1) and second movable mould (3) are all fixed in on rotary disk (7) of bi-color machine, thereby rotary disk (7) can drive first movable mould (1) with second movable mould (3) rotate, first fixed mould (2) can with first movable mould (1) with second movable mould (3) cooperate, second cover half (4) also can with first movable mould (1) with second movable mould (3) cooperate;

the first movable die (1) and the second movable die (3) comprise a rear die plate (8) and a rear die core (9) arranged on the rear die plate (8), polygonal protruding blocks (10) are formed on the upper end face of the rear die core (9), forming parts (21) for product injection molding are respectively arranged on corners of the polygonal protruding blocks (10), the forming parts (21) comprise first forming blocks (22), and the first forming blocks (22) are matched with the polygonal protruding blocks (10) in an angle-to-angle mode;

insert holes are respectively formed in the left side and the right side of the first forming block (22), and first forming inserts (24) are respectively arranged in the insert holes;

the first fixed die (2) and the second fixed die (4) comprise a front die plate (25) and a front die core (26) arranged on the front die plate (25), a polygonal groove (27) for accommodating the polygonal protruding block (10) is formed in the lower end face of the front die core (26), and a first forming groove (28) for accommodating the first forming block (22) is communicated with the corner of the polygonal groove (27).

2. The light guide column injection mold according to claim 1, wherein a plurality of mounting holes (29) penetrating through the front mold core (26) are formed, the mounting holes (29) are in one-to-one communication fit with the first molding grooves (28), second molding inserts (40) are detachably and fixedly arranged in the mounting holes (29), and the end parts of the second molding inserts (40) extend into the first molding grooves (28) to be matched with each other to form an injection molding cavity (50).

3. The light guide column injection mold according to claim 2, wherein a second molding groove (41) communicated with the first molding groove (28) is formed in the rear mold core (9) of the second movable mold (3), and a third molding groove (42) communicated with the first molding groove (28) is formed in the first molding block (22) of the second movable mold (3).

4. A light guide column injection mold according to claim 3, wherein the polygonal protrusion (10) is provided with a plurality of secondary flow channels (43) respectively communicated with the plurality of injection molding cavities (50), the front mold core (26) is provided with a main flow channel (44) communicated with the secondary flow channels (43), and the plurality of secondary flow channels (43) are uniformly distributed in a circumferential array with the main flow channel (44) as a center.

5. The light guide column injection mold according to claim 4, wherein a pre-empty groove (45) is reserved between the rear end of the first molding block (22) and the polygonal protruding block (10), a second molding block in butt fit with the first molding block (22) is arranged on the inner bottom surface of the first molding groove (28) of the first fixed mold (2), the injection molding cavity (50) is divided into a left cavity and a right cavity which are relatively independent through butt fit of the first molding block (22) and the second molding block, the left cavity and the right cavity are communicated with the secondary runner (43), and the inner bottom surface of the first molding groove (28) of the second fixed mold (4) is a flat surface so that the left cavity and the right cavity are communicated.

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