CN216941755U

CN216941755U - Multi-cavity foaming compact composite isobaric rubber strip extrusion die

Info

Publication number: CN216941755U
Application number: CN202123180444.2U
Authority: CN
Inventors: 王帅; 杨建国; 张志红; 李明; 刘蕊
Original assignee: Shenyang Ruide Plastics & Rubber Manufacture Co ltd
Current assignee: Shenyang Ruide Plastics & Rubber Manufacture Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-07-12
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to the technical field of door and window sealing rubber strip molds, in particular to a multi-cavity foaming compact composite isobaric rubber strip extrusion mold. The mold core unit is fixed on the rear mold and is vertical to the rear mold; after the front die and the rear die are assembled, the cavity between the core units and the front die form an extrusion cavity, the extrusion cavity penetrates through the front die and the rear die, and the outline of the cavity of the front die is consistent with the appearance of the multi-cavity foaming compact composite isobaric adhesive tape. The utility model relates to a multi-cavity foaming compact composite isobaric adhesive tape extrusion die which is simple in structure and low in manufacturing cost and can continuously produce a sealing adhesive tape with two materials compounded together.

Description

Multi-cavity foaming compact composite isobaric adhesive tape extrusion die

Technical Field

The utility model relates to the technical field of door and window sealing rubber strip dies, in particular to a multi-cavity foaming compact composite isobaric rubber strip extrusion die.

Background

As is known, the doors and windows are used for subdividing enclosure components or partition components according to different positions, different designs respectively have the functions of heat preservation, heat insulation, sound insulation, water resistance, fire prevention and the like, and the new design is energy-saving, because the heat lost due to the gaps of the doors and windows in cold areas occupies about 25% of the total heating heat consumption.

K value-basic parameter for heat insulation and energy conservation, the K value is also called heat transfer coefficient, and is called total heat transfer coefficient in the past. The national current standard specification is not necessarily named as heat transfer coefficient. The heat transfer coefficient K is the temperature difference of air at two sides of the building enclosure under the condition of stable heat transfer, is 1 degree (K, DEG C), and transfers heat through the area of 1 square meter within 1 hour, and the unit is tile/square meter DEG C (W/square meter DEG C, where K can be replaced by DEG C).

The sealing performance requirement of the door and the window is very important in energy-saving design, so that the sealing strip is a very important component in a door and window system, and the conventional isobaric rubber strip design only has some basic functions of water resistance, sound insulation and the like. The heat insulation coefficient is based on the coming of relevant policies such as national energy conservation and emission reduction, the door and window K value coefficient is required to be lower and lower for the energy conservation of doors and windows, and in order to effectively reduce the K value, a multi-cavity type and foaming compact combined isobaric adhesive tape structure is adopted in the design of a door and window sealing system, so that the K value can be effectively reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-cavity foaming compact composite isobaric rubber strip extrusion die which comprises a front die, a rear die and a plurality of core units. Wherein, the front of the front mould is attached to the back of the back mould, and the core unit is fixed on the back mould and extends into the front mould. And the core unit is provided with a vent hole to ensure that the rubber strip cavity is communicated with the outside when the rubber strip is extruded. Through the glue inlet II on the rear die, the other foaming material is extruded in through the glue inlet II by the auxiliary extruder and is extruded together with the material extruded in through the glue inlet I by the main extruder.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the multi-cavity foaming compact composite isobaric adhesive tape extrusion die comprises a front die, a rear die and a plurality of core units, wherein the core units are fixed on the rear die and are vertical to the rear die; after the front mold and the rear mold are closed, the cavity between the core units and the front mold form an extrusion cavity, the extrusion cavity penetrates through the front mold and the rear mold, and the outline of the cavity of the front mold is consistent with the outline of the multi-cavity foaming compact composite isobaric adhesive tape.

According to the multi-cavity foaming compact composite isobaric adhesive tape extrusion die, the core unit comprises an upper die core assembly and a lower die core assembly; the upper die core assembly comprises an upper die core and an upper die core hole penetrating through the upper die core; the lower die core component comprises a lower die core, a lower die core fixing plate and a lower die core hole penetrating through the lower die core.

According to the multi-cavity foaming compact composite isobaric adhesive tape extrusion die, the inner concave stepped grooves are formed in the binding surfaces of the rear die and the front die and connected with the extrusion cavity; and after the rear die and the front die are closed, the concave stepped groove and the front die form a glue inlet II.

The multi-cavity foaming compact composite isobaric adhesive tape extrusion die is characterized in that a stop block is arranged between the adhesive inlet II and the extrusion cavity on the rear die.

The utility model has the advantages of

The utility model relates to a multi-cavity foaming compact composite isobaric adhesive tape extrusion die which is simple in structure and low in manufacturing cost and can continuously produce a sealing adhesive tape with two materials compounded together.

Drawings

FIG. 1 is a schematic diagram of the front mold extrusion end face of a multi-cavity foaming compact composite isobaric rubber strip extrusion mold.

FIG. 2 is a schematic diagram of the joint of a rear mold and a front mold of a multi-cavity foaming compact composite isobaric rubber strip extrusion mold.

FIG. 3 is a schematic diagram of a multi-cavity foaming compact composite isobaric rubber strip extrusion mold core unit structure.

FIG. 4 is a schematic diagram of a rear mold glue inlet surface of a multi-cavity foaming compact composite isobaric glue strip extrusion mold.

FIG. 5 is a sectional view of a product extruded by a multi-cavity foaming compact composite isobaric rubber strip extrusion die.

In the figure, 1, a glue inlet II, 2, an extruding end face, 3, a rear die, 4, a rear die cavity, 5, an upper die core assembly, 5-1, an upper die core, 5-2, an upper die core hole, 5-3, an upper die core fixing plate, 6-a glue inlet I, 7, a lower die core assembly, 7-1, a lower die core, 7-2, a lower die core fixing plate, 7-3, a lower die core hole, 8, a stop block, 9, an extruding end face, 10, a front die, 11 and a die core unit.

Detailed Description

Example 1

The multi-cavity foaming compact composite isobaric rubber strip extrusion die comprises a front die 10, a rear die 3 and a plurality of core units 11, wherein the rear ends of the core units 11 are fixed on the rear die 3 and are perpendicular to the rear die 3; after the front die 10 and the rear die 3 are assembled, the cavity between the core units 11 and the front die 10 form an extrusion cavity, the extrusion cavity penetrates through the front die 10 and the rear die 3, and the outline of the cavity of the front die 10 is consistent with the outline of the multi-cavity foaming compact composite isobaric adhesive tape. The mouth formed by the extrusion cavity and the rear die 3 is a glue inlet I6.

The core unit 11 comprises an upper die core assembly 5 and a lower die core assembly 7; the upper die core assembly 5 comprises an upper die core 5-1, an upper die core hole 5-2 penetrating through the upper die core 5-1 and an upper die core fixing plate 5-3; the lower mold core assembly 7 comprises a lower mold core 7-1, a lower mold core fixing plate 7-2 and a lower mold core hole 7-3 penetrating through the lower mold core 7-1. The lower mold core 7-1 is fixed with the rear mold 3 through a lower mold core fixing plate 7-2. The height of the lower mold core 7-1 is consistent with the sum of the heights of the front mold 10 and the rear mold 3, and the height of the lower mold core fixing plate 7-2 is consistent with the height of the rear mold 3. The upper mold core 5-1 is fixed with the rear mold 3 through an upper mold core fixing plate 5-3.

The binding surface of the rear die 3 and the front die 10 is provided with an inward concave stepped groove which is connected with the extrusion cavity; and after the rear die 3 and the front die 10 are assembled, the concave stepped groove and the front die 10 form a glue inlet II 1.

And a stop block 8 is arranged between the glue inlet II 1 and the extrusion cavity on the rear die 3. The stop block 8 is used for preventing the flow rate of the sizing material entering from the sizing inlet II 1 from being too high.

The upper die core hole 5-2 and the lower die core hole 7-3 have ventilation effects so as to ensure that the adhesive tape cavity is communicated with the outside when the adhesive tape is extruded.

The use method of the multi-cavity foaming compact composite isobaric adhesive tape extrusion die comprises the following steps: a foaming material is extruded into an extrusion cavity through a glue inlet II 1 by an auxiliary extruder, another material enters into the extrusion cavity through a glue inlet I6 by a main extruder, the main extruder and the auxiliary extruder work simultaneously, and a multi-cavity foaming compact composite isobaric rubber strip is extruded from an extrusion end face 9 to obtain a finished product, as shown in figure 5.

Claims

1. The multi-cavity foaming compact composite isobaric rubber strip extrusion die is characterized by comprising a front die (10), a rear die (3) and a plurality of core units (11), wherein the core units (11) are fixed on the rear die (3) and are vertical to the rear die (3); after the front die (10) and the rear die (3) are closed, the cavity between the core units (11) and the front die (10) form an extrusion cavity, the extrusion cavity penetrates through the front die (10) and the rear die (3), and the outline of the cavity of the front die (10) is consistent with the appearance of the multi-cavity foaming compact composite isobaric adhesive tape.

2. The multi-cavity foamed compact composite isobaric strip extrusion die according to claim 1, characterized in that the core unit (11) comprises an upper core assembly (5), a lower core assembly (7); the upper die core assembly (5) comprises an upper die core (5-1) and an upper die core hole (5-2) penetrating through the upper die core (5-1); the lower die core assembly (7) comprises a lower die core (7-1), a lower die core fixing plate (7-2) and a lower die core hole (7-3) penetrating through the lower die core (7-1).

3. The multi-cavity foaming compact composite isobaric glue strip extrusion die according to claim 1, characterized in that the jointing surface of the rear die (3) and the front die (10) is provided with an inward-concave stepped groove which is connected with the extrusion cavity; after the rear die (3) and the front die (10) are assembled, the concave stepped groove and the front die (10) form a glue inlet II (1).

4. The multi-cavity foaming compact composite isostatic pressing rubber strip extrusion die according to claim 1, wherein a stopper (8) is arranged on the rear die (3) between the rubber inlet II (1) and the extrusion cavity.