CN216941752U

CN216941752U - Improved mould for composite opening sealing extrusion

Info

Publication number: CN216941752U
Application number: CN202123145331.9U
Authority: CN
Inventors: 穆子杨; 孙丽娜; 张婷; 潘明川; 尹昭然; 姜志义
Original assignee: Shenyang Ruide Plastics & Rubber Manufacture Co ltd
Current assignee: Shenyang Ruide Plastics & Rubber Manufacture Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-12
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a composite opening sealing extrusion improved die which comprises a front die and a rear die, wherein a rear die cavity which is communicated with the front die and the rear die is arranged on the rear die; the mold core assembly is formed by sequentially connecting a mold core, an air passage and an inflating nozzle, the mold core assembly is integrally in a U-shaped structure, and the inside of the mold core assembly is provided with the U-shaped air passage passing through the inflating nozzle, the air passage and the mold core; the mold core is customized according to the technical requirements and is inserted into the corresponding position in the rear mold cavity; the front die is provided with a rubber die through hole, the front end of the die core penetrates out of the rubber die through hole of the front die, and the inflating nozzle penetrates out of an inflating through hole arranged in the front die; the periphery of the rear die is provided with a plurality of feed inlets, the feed inlets are internally provided with inclined surface channels with gradually rising bottom surfaces, the rear die is provided with a glue containing groove, one side of the glue containing groove is communicated with the glue die through hole of the front die, and the other side of the glue containing groove is communicated with the inclined surface channels. The mould not only can more easily control the continuous stable extrusion of the foaming material, but also can control the flow velocity of the compact material with small demand, thereby ensuring the continuous stable extrusion of the foaming material.

Description

Improved mould for composite opening sealing extrusion

Technical Field

The utility model relates to a composite opening sealing extrusion improved die, and belongs to the technical field of rubber extrusion molding.

Background

Present basic composite extrusion die, the foaming material is crowded into through the cascaded groove of geometry indent with assisting the extruder promptly, and the closely knit material that extrudes into through the back mould with another kind at main extruder is together through the mould that the front mould was extruded, can meet following several problems when meetting the foaming area great relatively:

(1) the foaming material is extruded in by adopting a geometric inwards concave stepped groove, the extrusion flow control of each position is relatively poor only through a boss in the groove, and the problems of fast feeding around the adhesive tape and slow feeding in the central part can occur;

(2) because back mould terminal surface diameter is the restriction of fixed dimension, the size of the cascaded groove of the geometry indent that mills on the back mould can not infinitely enlarge to guaranteeing the supply, meets the foaming and accounts for when big, can appear that the foaming material feeding is not enough supplied.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an improved mould for composite opening sealing extrusion, which is not only easier to control the continuous and stable extrusion of foaming materials, but also can control the flow rate of compact materials with small requirements, thereby ensuring the continuous and stable extrusion of the foaming materials.

In order to solve the above problems, the specific technical scheme of the utility model is as follows: a composite opening sealing extrusion improved mould comprises a front mould and a rear mould, wherein a rear mould cavity which is communicated with the front mould and the rear mould is arranged on the rear mould, and the rear mould cavity is positioned on the rear surface of the rear mould and is a glue inlet runner; the mold core assembly is formed by sequentially connecting a mold core, an air passage and an air charging connector, the mold core assembly is integrally in a U-shaped structure, and the interior of the mold core assembly is provided with the U-shaped air passage passing through the air charging connector, the air passage and the mold core; the mold core is customized according to the technical requirements and is inserted into the corresponding position in the rear mold cavity; the front die is provided with a rubber die through hole, the front end of the die core penetrates out of the rubber die through hole of the front die, and the inflating nozzle penetrates out of an inflating through hole arranged in the front die; the periphery of the rear die is provided with a plurality of feed inlets, the feed inlets are internally provided with inclined surface channels with gradually rising bottom surfaces, the rear die is provided with a glue containing groove, one side of the glue containing groove is communicated with the glue die through hole of the front die, and the other side of the glue containing groove is communicated with the inclined surface channels.

The glue containing groove is provided with material distributing bosses with the same number as the material inlet, and the material distributing bosses are close to the position of the material outlet of the inclined plane channel.

The height of the air passage is smaller than that of the mold core and the inflating nozzle, and the top surface of the air passage is attached to the rear surface of the front mold.

The air passage formed by the mold cores positioned in the middle part is communicated with the inflating nozzle by adopting an external metal hose.

The rear surface of the front die is provided with a positioning pin, a positioning pin hole is formed in the position of the rear die corresponding to the positioning pin, and the positioning pin is inserted into the positioning pin hole.

The utility model provides a compound sealed extrusion improves mould of opening adopts the back mould back to advance to the foaming material and glues, and the structure that the front mould goes out to glue to the inclined plane passageway that rises gradually is set up from the side, thereby the closely knit sizing material feed speed of control, the assurance with the mixing ratio of foaming material.

Drawings

Fig. 1 is an overall assembly view of a composite open seal extrusion modified die.

Fig. 2 is a front view structural view of the rear mold.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a rear view of the rear mold.

Fig. 5 is a front view of the front mold.

Fig. 6 is a front view of one of the mold cores.

Fig. 7 is a side view of the mold core of fig. 6.

Detailed Description

As shown in fig. 1 to 5, an improved mold for composite opening, sealing and extrusion comprises a front mold 12 and a rear mold 1, wherein the rear mold 1 is provided with a rear mold cavity 5 which is communicated with the front and the rear, the rear mold cavity 5 is located on the rear surface of the rear mold 1, namely a glue inlet runner 10, and a glue material made of a foaming material is injected into the glue inlet runner 10; the mold core assembly 4 is formed by sequentially connecting a mold core 4-1, an air passage 4-2 and an inflating nozzle 4-3, is integrally in a U-shaped structure, and is internally provided with the U-shaped air passage passing through the inflating nozzle 4-3, the air passage 4-2 and the mold core 4-1; the mold core 4-1 customizes the shape according to the technical requirement and is inserted into the corresponding position in the rear mold cavity 5, the rubber material moves in the gap between the mold core and the mold cavity and is discharged from the front end of the front mold, and the rubber shape required by the design is formed; a rubber mold through hole is formed in the front mold 12, the front end of the mold core 4-1 penetrates out of the rubber mold through hole of the front mold 12, and the inflating nozzle 4-3 penetrates out of an inflating through hole formed in the front mold 12; the periphery of the rear die 1 is provided with a plurality of feed inlets 8, the feed inlets 8 are internally provided with inclined surface channels 6 with gradually rising bottom surfaces, the rear die 1 is provided with a glue containing groove 3, one side of the glue containing groove 3 is communicated with the glue die through hole of the front die 12, and the other side is communicated with the inclined surface channels 6. The less closely knit material of injection demand volume in the feed inlet 8 to glue the inslot and mix with expanded material holding, the inclined plane passageway of design, the feeding velocity of flow of the closely knit material of effective control.

The glue containing groove 3 is provided with material distributing bosses 7 with the same number as the material inlet 8, and the material distributing bosses 7 are close to the material outlet of the inclined plane channel 6. The material distributing boss 7 is used for distributing the sizing material, and the flow velocity of the sizing material is ensured to be uniform.

As shown in fig. 6 and 7, the height of the air duct 4-2 is smaller than the height of the mold core 4-1 and the air nozzle 4-3, and the top surface of the air duct 4-2 is fitted on the rear surface of the front mold 12. The shapes of the mold core 4-1 and the charging connector 4-3 are limited through the front mold, and the air passage 4-2 in the middle is positioned in the rear mold and is jointed with the end face of the front mold to limit the air passage. The position of the mold core 4-1 in the middle is fixed, and the continuity of glue injection liquid needs to be ensured, so that the air passage 4-2 with a fixed structure cannot be adopted, and the mold core 4-1 and the inflating nozzle 4-3 are connected by adopting an external metal hose 11 structure to form an integral mold core assembly 4.

In order to ensure the connection precision of the front die 12 and the rear die 1, a positioning pin is arranged on the rear surface of the front die 12, a positioning pin hole 2 is arranged at the position of the rear die 1 corresponding to the positioning pin, and the positioning pin is inserted into the positioning pin hole 2.

Claims

1. The utility model provides a compound sealed extrusion improves mould of opening, includes front mould (12) and back mould (1), its characterized in that: a rear die cavity (5) which is communicated with the front and the rear is arranged on the rear die (1), and the rear die cavity (5) is positioned on the rear surface of the rear die (1) and is a glue inlet runner (10); the mold core assembly (4) is formed by sequentially connecting a mold core (4-1), an air passage (4-2) and an inflating nozzle (4-3), is integrally in a U-shaped structure, and is internally provided with the U-shaped air passage passing through the inflating nozzle (4-3), the air passage (4-2) and the mold core (4-1); the mold core (4-1) is customized according to the technical requirements and is inserted into the corresponding position in the rear mold cavity (5); a rubber mold through hole is formed in the front mold (12), the front end of the mold core (4-1) penetrates out of the rubber mold through hole of the front mold (12), and the inflating nozzle (4-3) penetrates out of an inflating through hole formed in the front mold (12); the glue filling machine is characterized in that a plurality of feed inlets (8) are arranged on the circumferential surface of the rear die (1), a slope channel (6) with the bottom surface gradually rising is arranged in each feed inlet (8), a glue containing groove (3) is arranged on the rear die (1), one side of each glue containing groove (3) is communicated with a glue die through hole of the front die (12), and the other side of each glue containing groove is communicated with the slope channel (6).

2. The improved die for composite opening sealing extrusion of claim 1, wherein: the glue containing groove (3) is provided with material distributing bosses (7) with the same number as the material inlet (8), and the material distributing bosses (7) are close to the position of the material outlet of the inclined surface channel (6).

3. The improved die for composite open seal extrusion of claim 1, wherein: the height of the air passage (4-2) is less than that of the mold core (4-1) and the air charging nozzle (4-3), and the top surface of the air passage (4-2) is attached to the rear surface of the front mold (12).

4. The improved die for composite open seal extrusion of claim 1, wherein: an air passage (4-2) of the mold core assembly (4) positioned in the middle is communicated with the inflating nozzle (4-3) by an external metal hose (11).

5. The improved die for composite opening sealing extrusion of claim 1, wherein: the rear surface of the front die (12) is provided with a positioning pin, a positioning pin hole (2) is formed in the position, corresponding to the positioning pin, of the rear die (1), and the positioning pin is inserted into the positioning pin hole (2).