CN113927870A

CN113927870A - Extrusion die capable of being used by multiple materials

Info

Publication number: CN113927870A
Application number: CN202111566857.6A
Authority: CN
Inventors: 程朝文; 李阳; 程朝志
Original assignee: Hebei Yongchang Sealing Member Co ltd
Current assignee: Hebei Yongchang Sealing Member Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-01-14
Anticipated expiration: 2041-12-21
Also published as: CN113927870B

Abstract

The invention discloses an extrusion die capable of being used by multiple materials, which comprises a heating table and a cooling table, wherein a shaping sheet is connected at the joint of the heating table and the cooling table, a convex block is arranged on the heating table, a plastic injection hole is formed in the middle of the convex block, a plurality of heating rod insertion holes are uniformly distributed in the convex block, a shaping hole is formed in the middle of the shaping sheet, one end of the plastic injection hole is communicated with a plastic inlet pipe, and the other end of the plastic injection hole is communicated with the shaping hole close to the side of the heating table; the middle of the heating table is provided with an extrusion hole, the middle of the cooling table is provided with a rubber inlet hole, and the rubber inlet hole, the shaping hole of the shaping sheet and the extrusion hole are sequentially communicated. The invention not only can realize the simultaneous extrusion and remolding of rubber and plastic, but also can ensure the extrusion quality, and in addition, the invention can carry out rapid cooling and shaping after extrusion, thereby greatly improving the processing speed of the sealing strip, saving the processing time and labor cost and improving the practicability.

Description

Extrusion die capable of being used by multiple materials

Technical Field

The invention relates to the technical field of sealing strip processing, in particular to an extrusion die capable of being used by various materials.

Background

The sealing strip is a product which seals an object, is not easy to open, plays the roles of shock absorption, water resistance, sound insulation, heat insulation, dust prevention, fixation and the like, and is mainly used for doors, windows, vehicles and the like.

The sealing strip is mainly made of rubber materials and plastic materials, however, the forming temperature of the rubber materials is usually 70 ℃, and the rubber materials are melted and difficult to form at an over-high temperature; the molding temperature of plastics such as TPV, PE, PS and the like is 220 ℃, and the plastics with too low temperature are difficult to shape, so the two materials are difficult to extrude and remold simultaneously, and separate processing is needed during processing, thereby reducing the efficiency and increasing the cost.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an extrusion die which can be used by multiple materials.

In order to achieve the purpose, the invention adopts the following technical scheme:

an extrusion die capable of using multiple materials comprises a heating table and a cooling table, wherein a shaping sheet is connected at the joint of the heating table and the cooling table, a convex block is arranged on the heating table, a plastic injection hole is formed in the middle of the convex block, a plurality of heating rod insertion holes are uniformly distributed in the convex block, a shaping hole is formed in the middle of the shaping sheet, one end of the plastic injection hole is communicated with a plastic inlet pipe, and the other end of the plastic injection hole is communicated with a shaping hole close to the heating table; the middle of the heating table is provided with an extrusion hole, the middle of the cooling table is provided with a rubber inlet hole, and the rubber inlet hole, the shaping hole of the shaping sheet and the extrusion hole are sequentially communicated.

Furthermore, a water cooling device is arranged on the periphery of the cooling table.

Further, the calibrator includes cooling calibrator and heating calibrator, cooling calibrator and heating calibrator constitute fixed connection with the help of a plurality of locating pins.

Further, the interval of the adjacent surface between the cooling shaping sheet and the heating shaping sheet is 8mm, and the periphery of the positioning pin is hollowed to form a heat insulation area.

Further, the number of the cooling stereotype pieces is 3, and the number of the heating stereotype pieces is 1.

Further, the number of the heating rod insertion holes is 5-10.

Furthermore, a thermocouple is inserted into the bump of the heating table.

Furthermore, the periphery of the outer side of the plastic inlet pipe is wrapped with an insulating heat-resistant material.

Furthermore, the plastic inlet pipe is L-shaped and made of brass.

The beneficial effects obtained by the invention are as follows: the cooling table forms a rubber molding area, and the heating table forms a plastic and rubber combining area; the interval of adjacent surface between cooling design piece and the heating design piece is 8mm, and the periphery forms thermal-insulated district for the fretwork, and the purpose shortens the binding face of rubber in thermal-insulated district, prevents to run the material. The heating rod is inserted into the heating rod insertion hole on the heating table, a thermocouple is arranged to facilitate temperature adjustment, the cooling table is clamped in the machine head when in use, circulating water is arranged on the machine head for cooling, and rubber is pre-cooled.

The invention not only can realize the simultaneous extrusion and remolding of rubber and plastic, but also can ensure the extrusion quality, and in addition, the invention can carry out rapid cooling and shaping after extrusion, thereby greatly improving the processing speed of the sealing strip, saving the processing time and labor cost and improving the practicability.

Drawings

FIG. 1 is a schematic view of an extrusion die useful for a variety of materials in accordance with the present invention;

FIG. 2 is a side view of an extrusion die useful with the present invention;

FIG. 3 is a schematic diagram of the distribution structure of the heating rod inserting holes of the extrusion die of the present invention;

FIG. 4 is a schematic view of the structure of a sealing strip extrusion slot of an extrusion die capable of using various materials according to the present invention.

In the figure: 1 plastic inlet pipe, 2 heating rod inserting holes, 3 heating tables, 4 shaping sheets, 5 cooling tables, 6 extrusion holes, 7 heat insulation areas, 8 rubber inlet holes, 9 positioning pins and 10 bumps.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, the extrusion die capable of using multiple materials comprises a heating table 3 and a cooling table 5, wherein a shaping sheet 4 is connected at the joint of the heating table 3 and the cooling table 5, a convex block 10 is arranged on the heating table 3, a plastic injection hole is formed in the middle of the convex block 10, a plurality of heating rod insertion holes 2 are uniformly distributed in the convex block 10, a shaping hole is formed in the middle of the shaping sheet 4, one end of the plastic injection hole is communicated with a plastic inlet pipe 1, and the other end of the plastic injection hole is communicated with a shaping hole close to the heating table 3 side; the heating table 3 is provided with an extrusion hole 6 in the middle, the cooling table 5 is provided with a rubber inlet hole 8 in the middle, and the rubber inlet hole 8, the shaping hole of the shaping sheet 4 and the extrusion hole 6 are communicated in sequence. And a water cooling device is arranged on the periphery of the cooling table 5. Stereotype 4 is including cooling stereotype and heating stereotype, cooling stereotype and heating stereotype constitute fixed connection with the help of a plurality of locating pins 9. The interval of the adjacent surface between the cooling shaping sheet and the heating shaping sheet is 8mm, and the periphery of the positioning pin 9 is hollowed to form a heat insulation area 7. The cooling stereotype quantity is 3, the heating stereotype quantity is 1. The number of the heating rod insertion holes 2 is 5-10. A thermocouple is inserted into the bump 10 of the heating platform 3. And an insulating heat-resistant material is wrapped on the periphery of the outer side of the plastic inlet pipe 1. The plastic inlet pipe 1 is L-shaped and made of brass.

During the concrete implementation, 5 one sides of cooling platform link to each other with the rubber extruder, and cooling platform 5 constitutes the rubber shaping district, and block when cooling platform 5 uses is equipped with the circulating water cooling on the aircraft nose in the aircraft nose, and then carries out the pre-setting to rubber, guarantees that the rubber raw materials can normally extrude. The warm table 3 constitutes plastics and rubber bonding region, and the interval of cooling stereotype and heating stereotype between the adjacent surface is 8mm, and the periphery forms thermal-insulated district for the fretwork, and the purpose reduces the heat transfer, shortens the binding face of rubber at thermal-insulated district 7, guarantees that different region temperature is stable, prevents that rubber from running the material. The sizing holes are located in the center of the sizing sheet 4 for the rubber to pass through. The heating rod is inserted into the heating rod inserting hole 2 on the heating table 3, so that plastic shaping is facilitated, and the thermocouple is convenient to adjust the temperature. The plastic inlet pipe 1 is connected with the soft chain connecting pipe of the extruder in an L shape, and is made of brass, so that heat conduction is fast, and the temperature stability of the connecting part is ensured. Rubber gets into the design hole of cooling design piece through the cooling zone, and rubber is cooled off the design by primary, then passes through thermal-insulated district and gets into in the design hole of heating design piece and join with plastics again, and the extrusion hole 6 from the warm table is extruded after both combine together.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. An extrusion die usable with a plurality of materials, characterized in that: the heating device comprises a heating table (3) and a cooling table (5), wherein a shaping sheet (4) is connected at the joint of the heating table (3) and the cooling table (5), a convex block (10) is arranged on the heating table (3), a plastic injection hole is formed in the middle of the convex block (10), a plurality of heating rod insertion holes (2) are uniformly distributed in the convex block (10), a shaping hole is formed in the middle of the shaping sheet (4), one end of the plastic injection hole is communicated with a plastic inlet pipe (1), and the other end of the plastic injection hole is communicated with a shaping hole close to the side of the heating table (3); be equipped with in the middle of warm table (3) and extrude hole (6), be equipped with rubber manhole (8) in the middle of cooling bench (5), the shaping hole of rubber manhole (8), stereotype (4) is linked together in proper order with extruding hole (6).

2. The multi-material extrusion die of claim 1, wherein: and a water cooling device is arranged on the periphery of the cooling table (5).

3. The multi-material extrusion die of claim 1, wherein: the stereotype (4) are including cooling stereotype and heating stereotype, cooling stereotype and heating stereotype constitute fixed connection with the help of a plurality of locating pins (9).

4. The multi-material extrusion die of claim 3, wherein: the interval of the adjacent surface between the cooling shaping sheet and the heating shaping sheet is 8mm, and the periphery of the positioning pin (9) is hollowed to form a heat insulation area (7).

5. The multi-material extrusion die as set forth in claim 3 or 4, wherein: the cooling stereotype quantity is 3, the heating stereotype quantity is 1.

6. The multi-material extrusion die of claim 1, wherein: the number of the heating rod insertion holes (2) is 5-10.

7. The multi-material extrusion die of claim 1, wherein: a thermocouple is also inserted into the bump (10) of the heating table (3).

8. The multi-material extrusion die of claim 1, wherein: and an insulating heat-resistant material is wrapped on the periphery of the outer side of the plastic inlet pipe (1).

9. The multi-material extrusion die of claim 8, wherein: the plastic inlet pipe (1) is L-shaped and made of brass.