CN217802972U

CN217802972U - High-precision injection mold

Info

Publication number: CN217802972U
Application number: CN202220569556.2U
Authority: CN
Inventors: 江万友
Original assignee: Foshan Aimeixin Molding Technology Co ltd
Current assignee: Foshan Aimeixin Molding Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-11-15
Anticipated expiration: 2032-03-16

Abstract

The utility model belongs to the technical field of injection mold, especially, be a high-precision injection mold, the on-line screen storage device comprises a base, the up end of base is threaded mounting respectively mount and guide rail frame, and guide rail frame's medial surface slidable mounting has the movable mould group, and the mount is close to one side screw thread of movable mould group and installs the cover module group, and movable mould group and cover module group all include the frame, cover frame, nozzle assembly and die holder, and die holder in the movable mould group is close to one side screw thread of cover module group and installs the die block, and nozzle assembly includes insulating layer, outer tube, zone of heating, spray tube, scarf joint piece and flange. The utility model discloses a set up the insulating layer, can prevent that liquid from moulding and returning the infiltration, can also prevent that the cooling water from moulding the cooling with the liquid in the nozzle assembly to life is longer, does not need often to change, and is more practical, and through setting up flexible pipe, the axle tangent plane is the circumstances that the cross flexible pipe can not appear deflecting at flexible in-process, makes the removal route of die block fixed unchangeable, ensures the precision of mould location.

Description

High-precision injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is a high-precision injection mold.

Background

An injection mold is one of the indispensable devices in the injection molding process. Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. The existing injection mold is mainly divided into a vertical type injection mold and a horizontal type injection mold, the vertical type injection mold can be used for forming a plurality of products generally at a time, a plurality of independent nozzles are arranged in a relatively advanced mold, a plurality of cooling water paths are arranged in the mold, hot liquid plastic which is not injected into a forming cavity in the nozzles is easily cooled, the phenomenon is avoided by adopting methods of manually cutting glue, heating the nozzles and moving the nozzles after demolding at present, most of the methods are used for heating the nozzles, but a product area close to the nozzles is heated during heating, so that the products are not uniformly cooled, the quality of the products is influenced, and the products are not practical enough.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a high-precision injection mold, the method of having solved the heating nozzle can let the product region of adjacent nozzle department also receive the heating and set up the guide arm but still have the problem that the condition of deflection appears.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-precision injection mold, includes the base, mount and guide rail frame are installed to the up end of base screw thread respectively, guide rail frame's medial surface slidable mounting has the movable mould group, the mount is close to one side screw thread of movable mould group and installs the cover module group, movable mould group and cover module group all include frame, lid frame, nozzle assembly and die holder, the die holder in the movable mould group is close to one side screw thread of cover module group and installs the die block, the die holder in the cover module group is close to one side screw thread of movable mould group and installs the fixed mould, nozzle assembly includes insulating layer, outer tube, zone of heating, spray tube, scarf joint piece and flange, be in the same place through flexible pipe fixing between die holder and the die holder.

As an optimized technical scheme of the utility model, the axle tangent plane of flexible pipe is the cross, three groups are no less than to flexible pipe's quantity.

As an optimal technical scheme of the utility model, the lid frame includes the fore-set and carves the post that closes, the medial surface of fixed mould and the medial surface of die block all are provided with and carve the post complex recess, the medial surface of die holder is provided with and carves post complex through-hole.

As an optimized technical scheme of the utility model, the material of insulating layer is the ceramic fiber cotton of metal rubber parcel.

As a preferred technical scheme of the utility model, form the installation cavity between lid frame and the frame.

Compared with the prior art, the utility model provides a high-precision injection mold possesses following beneficial effect:

1. this high-precision injection mold through setting up the insulating layer, can prevent that liquid from moulding and returning to ooze, can also prevent that the cooling water from moulding the liquid in the nozzle assembly and cooling to life is longer, does not need often to change, and is more practical.

2. This high-precision injection mold, through setting up flexible pipe, the axle tangent plane is the condition that the deflection can not appear at flexible in-process for criss-cross flexible pipe, makes the removal route of die block fixed unchangeable, can ensure that the precision of mould location is higher.

Drawings

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

FIG. 2 is a schematic view of the present invention;

FIG. 3 is an exploded view of the movable mold assembly of the present invention;

FIG. 4 is a schematic cross-sectional view of the telescopic tube of the present invention;

fig. 5 is a schematic view of the nozzle assembly of the present invention.

In the figure: 1. a base; 2. a fixed mount; 3. a guide rail bracket; 4. a movable module; 5. fixing a module; 6. an outer frame; 7. a cover frame; 8. a nozzle assembly; 9. a die holder; 10. bottom die; 11. a fixed mold; 12. a thermal insulation layer; 13. an outer tube; 14. a heating layer; 15. a nozzle; 16. a scarf block; 17. a flange; 18. a telescopic pipe; 19. a top pillar; 20. a wedged column; 21. a groove; 22. a through hole; 23. and (7) installing a cavity.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a high-precision injection mold, the on-line screen storage device comprises a base 1, mount 2 and guide rail frame 3 are installed to base 1's up end difference screw thread, the medial surface slidable mounting of guide rail frame 3 has movable module 4, mount 2 is close to one side screw thread of moving module 4 and installs fixed module 5, movable module 4 all includes frame 6 with fixed module 5, cover frame 7, nozzle assembly 8 and die holder 9, die holder 9 in the movable module 4 is close to one side screw thread of fixed module 5 and installs die block 10, die holder 9 in the fixed module 5 is close to one side screw thread of moving module 4 and installs fixed mould 11, nozzle assembly 8 includes insulating layer 12, outer tube 13, the zone of heating 14, spray tube 15, scarf joint piece 16 and flange 17, fix together through flexible pipe 18 between die holder 9 and the die holder 9.

In this embodiment, the movable mold assembly 4 slides on the guide rail frame 3 to realize the demolding and mold closing processes of the bottom mold 10 and the fixed mold 11, the nozzle assembly 8 is used for spraying hot liquid plastic to a molding cavity between the bottom mold 10 and the fixed mold 11, the bottom mold 10 and the fixed mold 11 can be molds with built-in cooling water paths mature in the prior art, and can be mold assemblies capable of producing a plurality of products at one time, the heat-insulating layer 12 can prevent liquid plastic from seeping back, and can also prevent cooling water from cooling the liquid plastic in the nozzle assembly 8, the service life is long, and the replacement is not needed frequently, and more practical, the outer tube 13 isolates the heat-insulating layer 12 from the heating layer 14, the heating layer 14 heats the hot liquid plastic in the spray tube 15 through a ceramic heating sheet, so that the liquid plastic keeps liquid plastic in a liquid state, the cooling process of the product in the molding cavity is prevented from being affected, the embedding block 16 enables the assembly of the nozzle assembly 8 and the cover frame 7 to be more compact, and screws can be screwed so that the nozzle assembly 8 is fixed after being installed, and the flange 17 is prevented from moving, the flange 17 is used for butting the pipeline of the extrusion mechanism on the injection molding machine and enabling the nozzle assembly to enter the nozzle assembly 8.

Specifically, the axial section of the telescopic tubes 18 is cross-shaped, and the number of the telescopic tubes 18 is not less than three.

In this embodiment, the telescopic tube 18 having a cross-shaped axial section does not deflect during the telescopic process, so that the moving path of the bottom mold 10 is fixed, and the high accuracy of mold positioning can be ensured.

Specifically, the cover frame 7 includes a top column 19 and a wedging column 20, the inner side of the fixed mold 11 and the inner side of the bottom mold 10 are both provided with a groove 21 matched with the wedging column 20, and the inner side of the mold base 9 is provided with a through hole 22 matched with the wedging column 20.

In this embodiment, the top pillar 19 is matched with the groove at the corresponding position on the mold base 9, so that when the cover frame 7 is assembled with the mold base 9, the positioning is more accurate and the assembly is more compact, and the wedge pillar 20 is matched with the groove 21 and the through hole 22, so that the butt joint of the nozzle assembly 8 is more compact when the assembly is carried out.

Specifically, the heat insulation layer 12 is made of ceramic fiber cotton wrapped by metal rubber.

In the embodiment, the metal rubber has good sealing performance and extremely strong high temperature resistance, and the ceramic fiber cotton has good heat insulation performance.

Specifically, a mounting cavity 23 is formed between the cover frame 7 and the outer frame 6.

In this embodiment, the installation cavity 23 is used for installing the ejection mechanism.

The utility model discloses a theory of operation and use flow: when the injection molding machine is used, the movable mold group 4 slides on the guide rail frame 3, the bottom mold 10 and the fixed mold 11 are combined, meanwhile, the telescopic pipe 18 is shortened, the heating layer 14 is started, the spraying pipe 15 is preheated, hot liquid plastic in the injection molding machine enters the preheated spraying pipe 15 through the flange 17 on the nozzle assembly 8 and then enters the molding cavity, the injection is stopped after the injection is full, cooling water flows into a cooling water channel in the bottom mold 10 and the fixed mold 11 to cool and mold the hot liquid plastic in the molding cavity into a product, meanwhile, due to the arrangement of the heat insulation layer 12, the liquid plastic infiltration can be prevented, the cooling water can be prevented from cooling the liquid plastic in the nozzle assembly 8, the service life is long, frequent replacement is not needed, the injection molding machine is more practical, after the product is molded, the movable mold group 4 moves on the guide rail frame 3, the bottom mold 10 is separated from the fixed mold 11, meanwhile, the product is ejected by the ejection mechanism to realize demolding and the 18 is extended, and the telescopic pipe 18 cannot deflect in the telescopic process due to the cross-shaped shaft section, the moving path of the telescopic pipe is fixed mold is fixed, and the positioning accuracy of the mold can be ensured to be higher.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-precision injection mold, includes the base, its characterized in that: the utility model discloses a die holder, including base, guide rail frame, die holder, fixed mould, outer tube, zone of heating, spray pipe, scarf joint piece and flange, the up end of base is threaded respectively and installs mount and guide rail frame, the medial surface slidable mounting of guide rail frame has the movable mould group, the mount is close to one side screw thread of movable mould group and installs the cover half, the movable mould group all includes frame, lid frame, nozzle assembly and die holder with the cover half, one side screw thread that the die holder in the movable mould group is close to the cover half is installed the die holder, the die holder in the cover half is close to one side screw thread of movable mould group and is installed the fixed mould, nozzle assembly includes insulating layer, outer tube, zone of heating, spray pipe, scarf joint piece and flange, be in the same place through flexible pipe fixing between die holder and the die holder.

2. A high precision injection mold according to claim 1, characterized in that: the axial section of the telescopic pipes is cross-shaped, and the number of the telescopic pipes is not less than three.

3. A high precision injection mold according to claim 1, characterized in that: the cover frame comprises a top column and a wedge column, grooves matched with the wedge column are formed in the inner side surface of the fixed die and the inner side surface of the bottom die, and a through hole matched with the wedge column is formed in the inner side surface of the die holder.

4. A high precision injection mold according to claim 1, characterized in that: the heat insulation layer is made of ceramic fiber cotton wrapped by metal rubber.

5. A high precision injection mold according to claim 1, characterized in that: and an installation cavity is formed between the cover frame and the outer frame.