CN214645402U - Precise nib vacuum mold cavity injection mold structure - Google Patents

Abstract

The utility model discloses an accurate nib vacuum mold cavity injection mold structure relates to accurate vacuum injection mold technical field that moulds plastics. The utility model discloses a mould shell, die holder, evacuation mechanism, public fastener and female fastener, the inside of mould shell is provided with the die holder, and evacuation mechanism is installed to the anterior one side of mould shell, and evacuation mechanism's suction end is connected with the evacuation pipeline, and the evacuation pipeline is connected with the die holder, and vacuum controller is installed to the anterior opposite side of mould shell. The utility model discloses an increase auxiliary vacuum system and novel mould structure and combine together, improve the precision of accurate nib injection moulding product, reduce the product vacuole phenomenon and produce avoid costly special high-speed injection board of import, shorten injection cycle simultaneously and improve the output of moulding plastics, promote the injection moulding product quality and reach customer acceptance standard, through setting up public fastener and female fastener joint that cooperatees, greatly improved the stability of the in-process mould of moulding plastics, reduce the production of running the mould problem, improved the quality of product.

Description

Precise nib vacuum mold cavity injection mold structure

Technical Field

The utility model belongs to the technical field of accurate vacuum injection mold moulds plastics, especially relate to an accurate nib vacuum mold cavity injection mold structure.

Background

In recent years, with the continuous development of economy in China, pens for office and education are rapidly developed, the quality requirements of people for pens are higher and higher, a pen point is used as an important component of the pen, the quality of the pen is directly related to whether the pen point determines whether the pen can be used smoothly and conveniently or not, at present, in the process of manufacturing pens, the precision pen points are mostly manufactured by injection molding, however, the existing injection mold for precision pen point products, because the products are small in quantity and high in speed, the yield is low due to the serious product cavitation phenomenon, and the quality of the product after injection molding has flaws due to the fact that the existing precision nib vacuum mold cavity injection mold is not firmly connected with the mold base and the mold cover in the injection molding process and is easy to loosen, the leakage problem is caused, and therefore the existing technology needs to be improved to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate nib vacuum cavity injection mold structure, through the novel evacuation mechanism mold structure of design on the basis of same set of die cavity, the online evacuation system work of injection molding machine, take out into vacuum state the die cavity, inject the gluey nib product of moulding plastics again, combine together through increasing supplementary vacuum system and novel mold structure, improve accurate nib injection product's precision, it produces to reduce product vacuole phenomenon, through setting up female fastener and public fastener respectively on die holder and die cover, the mutual joint effect that utilizes public female fastener makes die holder and die cover difficult relative slip at the in-process of moulding plastics, it is effectual to mould plastics, it is serious to have solved current injection mold product vacuole phenomenon, and the mould leakproofness is poor, the poor problem of injection mold product quality.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an accurate nib vacuum cavity injection mold structure, including mould shell, mould base, evacuation mechanism, public fastener and female fastener, the inside of mould shell is provided with the mould base, evacuation mechanism is installed to anterior one side of mould shell, the suction end of evacuation mechanism is connected with the evacuation pipeline, the evacuation pipeline is connected with the mould base, the anterior opposite side of mould shell is installed vacuum controller, vacuum controller and evacuation mechanism electric connection, the inside of mould base is provided with the glue position die cavity, the upper end of glue position die cavity is provided with the nib terrace die, be located the outermost the nib terrace die is provided with the evacuation mouth with adjacent relatively close to inboard nib terrace die, the bottom of mould base is provided with the thimble, be provided with rather than assorted die cover on the mould base, the die cover is seted up the nib terrace die assorted nib hole, two male clamping pieces are installed on two sides of the die cover, two female clamping pieces are installed on two sides of the die base, and the male clamping pieces are in matched clamping connection with the female clamping pieces.

Further, public fastener includes picture peg and bellying, the bellying sets up the outside at the picture peg, female fastener includes socket and spacing mouth, the outside at the socket is seted up to spacing mouth, the size and the bellying of spacing mouth match mutually, set up the bellying and can peg graft in the socket back and socket one side spacing mouth match joint at the picture peg to the realization is to the chucking of die holder and mould lid, improves the leakproofness of the in-process of moulding plastics, reduces the production of leaking the gluey accident.

Further, the thimble hole has been seted up to the centre of nib terrace die, and thimble hole size and thimble phase-match, install the sealed copper sheathing of thimble on the thimble, the thimble sets up with nib terrace die one-to-one, can conveniently be moulding plastics through setting up the thimble hole and accomplish the back, and it is ejecting to mould plastics the nib through the thimble, makes things convenient for personnel to get and puts.

Furthermore, positioning pins are installed on two sides of the inner surface of the die cover, positioning holes are formed in the glue position cavity, the positioning pins are matched with the positioning holes in size, and through the arrangement of the positioning pins and the positioning holes, personnel can conveniently and accurately cover the die cover on the die holder, so that the convenience in operation is improved.

Furthermore, one end of the protruding portion is connected with the free end of the insertion plate, the included angle between the other end of the protruding portion and the insertion plate is 15-30 degrees, and a certain included angle exists between the protruding portion and the insertion plate, so that the protruding portion can have certain elasticity, and the male clamping piece and the female clamping piece can be conveniently clamped and disassembled.

Furthermore, the upper end of the rubber position cavity is provided with a sealing rubber ring, the sealing rubber ring completely surrounds the nib male die and the vacuumizing port, and the sealing rubber ring is arranged to seal the cavity to form a closed cavity, so that air leakage of the cavity is avoided.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up evacuation mechanism, evacuation system opens the space evacuation between accessible evacuation pipeline with die holder and the die cover after, vacuum state injection packing intracavity can not produce vacuole phenomenon defect, combine together through increasing supplementary vacuum system and novel mould structure, improve the precision of accurate nib injection moulding product, reduce product vacuole phenomenon and produce, avoid costly special high-speed injection board of import, shorten injection cycle simultaneously and improve the output of moulding plastics, it reaches customer acceptance standard to promote the injection moulding product quality.

2. The utility model discloses a set up public fastener and female fastener, when closing the die holder with the die cover lid together, public fastener can correspond to peg graft in the female fastener, then the bellying on the public fastener is in the spacing mouth of joint on the female fastener after the pressurized bounce-back, realizes the chucking to can effectively avoid moulding plastics in-process die holder and die cover relative slip, make sealed effect better, reduce the outer hourglass of the liquid of moulding plastics, improve injection moulding product's quality.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the die base and the die cover used in cooperation with the die base in fig. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

fig. 4 is an enlarged view of a structure at B in fig. 2 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a formwork; 2. a die holder; 3. a vacuum pumping mechanism; 4. a vacuum pipeline is pumped; 5. a vacuum controller; 6. a glue position cavity; 7. a nib male die; 8. a vacuum pumping port; 9. sealing the rubber ring; 10. a thimble; 11. the thimble seals the copper bush; 12. a mold cover; 13. a die hole; 14. positioning holes; 15. positioning pins; 16. a male fastener; 1601. inserting plates; 1602. a boss portion; 17. a female fastener; 1701. a socket; 1702. a limiting opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model relates to an injection mold structure with a precision nib vacuum mold cavity, comprising a mold shell 1, a mold base 2, a vacuum-pumping mechanism 3, a male fastener 16 and a female fastener 17, wherein the mold base 2 is arranged inside the mold shell 1, the vacuum-pumping mechanism 3 is arranged on one side of the front part of the mold shell 1, the vacuum-pumping end of the vacuum-pumping mechanism 3 is connected with a vacuum-pumping pipeline 4, the vacuum-pumping pipeline 4 is connected with the mold base 2, the other side of the front part of the mold shell 1 is provided with a vacuum controller 5, the vacuum controller 5 is electrically connected with the vacuum-pumping mechanism 3, a glue position cavity 6 is arranged inside the mold base 2, a nib male mold 7 is arranged at the upper end of the glue position cavity 6, a vacuum-pumping port 8 is arranged between the nib male mold 7 located at the outermost side and the adjacent nib male mold 7 relatively close to the inner side, a thimble 10 is arranged at the bottom of the mold base 2, a thimble hole is arranged in the middle of the nib male mold 7, the size of the thimble hole is matched with that of the thimble 10, the thimble 10 is provided with a thimble sealing copper sleeve 11, the thimble 10 and the pen point male die 7 are arranged in a one-to-one correspondence manner, the die holder 2 is provided with a die cover 12 matched with the thimble, the die cover 12 is provided with a die hole 13 matched with the pen point male die 7, when the injection molding machine works, the injection molding machine starts to work, the die holder 2 and the die cover 12 on the die shell 1 are firstly closed, a die cavity between the die cover 12 and the die holder 2 is sealed through a sealing rubber ring 9, the thimble sealing copper sleeve 11 blocks the gap of the thimble 10 to avoid air leakage of the die cavity, a vacuum controller 5 receives a work instruction of the injection molding machine to start a vacuum pump, a vacuumizing pipeline 4 is connected with a vacuumizing mechanism 3 to work, air in a glue position die cavity 6 is pumped out through the vacuumizing pipeline 4 to generate a vacuum state, the injection molding machine injects glue to mold a pen point product, and the vacuum state does not generate a void phenomenon defect in the injection filling die cavity, and (3) opening the mold, ejecting the qualified product to a designated position, starting a mold closing program by the injection machine, and performing injection molding in the next period.

Referring to fig. 2-3, two male card members 16 are mounted on two sides of the mold cover 12, two female card members 17 are mounted on two sides of the mold base 2, the male card members 16 are in fit and snap-fit engagement with the female card members 17, the male card members 16 include an insert plate 1601 and a boss 1602, the boss 1602 is disposed on the outer side of the insert plate 1601, the female card member 17 includes a socket 1701 and a limiting port 1702, the limiting port 1702 is disposed on the outer side of the socket 1701, the size of the limiting port 1702 is matched with that of the boss 1602, positioning pins 15 are mounted on two sides of the inner surface of the mold cover 12, a positioning hole 14 is disposed on the glue cavity 6, the positioning pins 15 are matched with the size of the positioning holes 14, one end of the boss 1602 is connected with the free end of the insert plate 1601, an included angle between the other end of the boss 1602 and the insert plate 1601 is 15-30 °, a sealing rubber ring 9 is disposed at the upper end of the glue cavity 6, the sealing rubber ring 9 completely surrounds the male mold tip 7 and the vacuum extraction port 8, when covering the die cover 12 on the die holder 2, plug the locating pin of the bottom surface of the die cover 12 into the locating hole 14 correspondingly arranged in the glue position cavity 6, then the male fastener 16 can be slowly inserted into the female fastener 17, when inserting, the bulge 1602 on the insert plate 1601 is restricted by the opening size of the socket 1701 and tightened up, after the male fastener 16 is completely inserted into the female fastener 17, the bulge 1602 can rebound to be clamped into the limiting opening 1702, thereby realizing the clamping of the die holder 2 and the die cover 12, when opening, the bulge 1602 is pressed inwards, and the die cover 12 can be lifted upwards.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solution recorded in the foregoing embodiments is modified, and some technical features are replaced by equivalent, all belonging to the protection scope of the present invention.

Claims (6)

1. The utility model provides a precision nib vacuum mold cavity injection mold structure, includes mould shell (1), die holder (2), evacuation mechanism (3), public fastener (16) and female fastener (17), its characterized in that: the mold comprises a mold shell (1), a mold base (2) is arranged inside the mold shell (1), a vacuumizing mechanism (3) is installed on one side of the front portion of the mold shell (1), a vacuumizing pipeline (4) is connected to a suction end of the vacuumizing mechanism (3), the vacuumizing pipeline (4) is connected with the mold base (2), a vacuum controller (5) is installed on the other side of the front portion of the mold shell (1), the vacuum controller (5) is electrically connected with the vacuumizing mechanism (3), a glue position cavity (6) is arranged inside the mold base (2), a pen point male mold (7) is arranged at the upper end of the glue position cavity (6), a vacuumizing opening (8) is formed between the pen point male mold (7) located on the outermost side and an adjacent pen point male mold (7) relatively close to the inner side, a thimble (10) is arranged at the bottom of the mold base (2), and a mold cover (12) matched with the pen point male mold is arranged on the mold base (2), set up on the mould lid (12) with nib terrace die (7) assorted nib (13), two public fastener (16) are installed to the both sides of mould lid (12), two female fastener (17) are installed to the both sides of die holder (2), public fastener (16) and female fastener (17) cooperation joint.

2. A precision nib vacuum cavity injection mould structure according to claim 1, wherein the male clip (16) comprises an insert plate (1601) and a boss (1602), the boss (1602) is arranged on the outer side of the insert plate (1601), the female clip (17) comprises a socket (1701) and a limiting opening (1702), the limiting opening (1702) is arranged on the outer side of the socket (1701), and the size of the limiting opening (1702) is matched with that of the boss (1602).

3. The injection mold structure with the precise pen point vacuum mold cavity as claimed in claim 1, wherein a thimble hole is formed in the middle of the pen point male mold (7), the size of the thimble hole is matched with that of the thimble (10), a thimble sealing copper sleeve (11) is mounted on the thimble (10), and the thimble (10) and the pen point male mold (7) are arranged in a one-to-one correspondence manner.

4. The structure of the precise-nib vacuum-cavity injection mold according to claim 1, wherein positioning pins (15) are installed on two sides of the inner surface of the mold cover (12), positioning holes (14) are formed in the glue position cavity (6), and the positioning pins (15) are matched with the positioning holes (14) in size.

5. A precision nib vacuum cavity injection mould structure according to claim 2, wherein one end of the protruding part (1602) is connected to the free end of the insert plate (1601), and the angle between the other end of the protruding part (1602) and the insert plate (1601) is between 15 ° and 30 °.

6. The precision nib vacuum cavity injection mold structure according to claim 1, wherein the upper end of the glue site cavity (6) is provided with a sealing rubber ring (9), and the sealing rubber ring (9) completely surrounds the nib male mold (7) and the vacuum pumping port (8).

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