阅读说明：本技术 多复合共挤机头 (Multi-composite co-extrusion machine head ) 是由 苑乐伟 徐永浩 翟美松 王争发 于 2020-05-18 设计创作，主要内容包括：本发明提供了一种多复合共挤机头,包括机头主体,于机头主体内形成有骨架通道,且骨架通道具有位于机头主体两相对侧的骨架进口和骨架出口,于机头主体内还形成有位于骨架通道周侧的至少四个胶体通道,且各胶体通道均具有位于机头主体外壁上的胶体进口,以及与骨架出口位于同一侧的胶体出口。本发明所述的多复合共挤机头,通过对骨架通道和胶体通道的合理布置,可实现至少五种原材料的复合,并且也可应用于二复合产品、三复合产品或更多种类的复合产品,适用范围广泛,并可提升产品性能、降低产品成本、满足产品轻量化设计需求。(The invention provides a multi-composite co-extrusion machine head which comprises a machine head main body, wherein a framework channel is formed in the machine head main body, the framework channel is provided with a framework inlet and a framework outlet which are positioned at two opposite sides of the machine head main body, at least four colloid channels positioned at the peripheral sides of the framework channel are also formed in the machine head main body, and each colloid channel is provided with a colloid inlet positioned on the outer wall of the machine head main body and a colloid outlet positioned at the same side with the framework outlet. The multi-composite co-extrusion machine head can realize the compounding of at least five raw materials by reasonably arranging the skeleton channel and the colloid channel, can also be applied to two-composite products, three-composite products or more kinds of composite products, has wide application range, can improve the product performance, reduce the product cost and meet the light-weight design requirement of the product.)

1. A multi-composite co-extrusion machine head is characterized in that: including the aircraft nose main part, in be formed with skeleton passageway (106) in the aircraft nose main part, just skeleton passageway (106) have and are located skeleton import (1061) and skeleton export (1062) of the double-phase contralateral of aircraft nose main part, in still be formed with in the aircraft nose main part and be located four at least colloid passageways of skeleton passageway (106) week side, and each colloid passageway all has and is located colloid import on the aircraft nose main part outer wall, and with skeleton export (1062) are located the colloid export with one side.

2. The multi-composite co-extruder head according to claim 1, wherein: the axial level of skeleton passageway (106) arranges, the colloid passageway is five at least, four at least the colloid passageway the colloid import with skeleton passageway (106) are located same horizontal plane, and these four the central line of colloid import with be equipped with the contained angle between skeleton import (1061), at least one the colloid import of colloid passageway is seted up in on the upper surface of aircraft nose main part, and each the colloid export of colloid passageway encircles skeleton export (1062) interval distribution.

3. The multi-composite co-extruder head according to claim 2, wherein: an upper cooling channel and a lower cooling channel are formed on the upper portion and the lower portion of the handpiece main body, respectively, and the skeleton channel (106) is arranged between the upper cooling channel and the lower cooling channel.

4. The multi-composite co-extruder head according to claim 3, wherein: the upper cooling channel is communicated with the lower cooling channel, and a machine head cooling liquid inlet (108) and a machine head cooling liquid outlet (110) are respectively formed in the side walls of the upper cooling channel and the lower cooling channel; the upper cooling channel and the lower cooling channel respectively comprise a plurality of branch channels (107) which are arranged in one-to-one correspondence with the colloid channels, and the branch channels (107) of the upper cooling channel and the lower cooling channel are respectively connected in series.

5. The multi-composite co-extruder head according to claim 1, wherein: the handpiece main body comprises a connecting body (1) with an insertion hole and a core body (2) detachably and fixedly connected in the insertion hole, the framework outlet (1062) and the colloid outlets are constructed on the core body (2), and the colloid inlets are constructed on the connecting body (1).

6. The multi-composite co-extruder head according to claim 5, wherein: the plug hole and the core body (2) are both conical, the framework inlet (1061) is arranged at the small-diameter end of the core body (2), an exposed section capable of being exposed out of the plug hole is arranged at the small-diameter end of the core body (2), and the core body (2) is fixed at the plug hole through a fastener (4) connected with the exposed section.

7. The multi-composite co-extruder head according to claim 5, wherein: the end of the core body (2) provided with the skeleton outlet (1062) is provided with a plurality of connecting holes (112) for connecting with an external mold.

8. The multi-composite co-extruder head according to any one of claims 1-7, wherein: a transition pipe fitting for connecting the colloid extruder is arranged at the colloid inlet of each colloid passage, and a transition passage (3011) for communicating the corresponding colloid pipeline is constructed in the transition pipe fitting.

9. The multi-composite co-extruder head according to claim 8, wherein: the transition pipe fitting is detachably connected with the machine head main body.

10. The multi-composite co-extruder head according to claim 8, wherein: and a pipe cooling channel (3012) arranged around the transition channel (3011) is formed in the transition pipe, and a pipe cooling liquid inlet (3013) and a pipe cooling liquid outlet (3014) communicated with the pipe cooling channel (3012) are formed on two sides of the transition pipe respectively.

Technical Field

The invention relates to the technical field of extrusion equipment, in particular to a multi-composite co-extrusion machine head.

Background

With the progress of science and technology and the upgrade of technology, the automobile model is continuously changed and developed in design, and the requirements on parts are higher and higher. For example, in the existing automobile sealing strip, requirements of the product in many aspects such as functionality, light weight, cost and the like need to be considered, and the structure of the product is more and more complex.

In order to enable the produced sealing strip to meet the requirements, multiple materials are required to be co-extruded and molded sometimes, the types of the materials can even be as many as five or six, the existing compound extruder head can realize compound extrusion of at most four rubber materials, the limitation is large, the size is heavy, the cost is high, and the requirements of compound extrusion of multiple materials cannot be met.

Disclosure of Invention

In view of this, the present invention is directed to a multi-composite co-extrusion machine head for realizing the requirement of composite extrusion of multiple materials.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a many compounds are crowded aircraft nose altogether, includes the aircraft nose main part, in be formed with the skeleton passageway in the aircraft nose main part, just the skeleton passageway has and is located the skeleton import and the skeleton export of the double-phase offside of aircraft nose main part, in still be formed with in the aircraft nose main part and be located four at least colloid channels of skeleton passageway week side, and each the colloid channel all has and is located colloid import on the aircraft nose main part outer wall, and with the skeleton export is located the colloid export with one side.

Further, the axial level of skeleton passageway arranges, the colloid passageway is five at least, four at least the colloid passageway the colloid import with the skeleton passageway is located same horizontal plane, and this four the central line of colloid import with be equipped with the contained angle between the skeleton import, at least one the colloid import of colloid passageway is seted up in on the upper surface of aircraft nose main part, and each the colloid export of colloid passageway encircles skeleton export interval distribution.

Further, an upper cooling channel and a lower cooling channel are formed on the upper portion and the lower portion of the handpiece main body, respectively, and the framework channel is arranged between the upper cooling channel and the lower cooling channel.

Further, the upper cooling channel is communicated with the lower cooling channel, and a machine head cooling liquid inlet and a machine head cooling liquid outlet are respectively formed in the side walls of the upper cooling channel and the lower cooling channel; the upper cooling channel and the lower cooling channel respectively comprise a plurality of branch channels which are arranged in one-to-one correspondence with the colloid channels, and the branch channels of the upper cooling channel and the lower cooling channel are respectively connected in series.

Further, the machine head main body comprises a connecting body with a plug hole and a core body detachably and fixedly connected in the plug hole, the framework outlet and each colloid outlet are formed on the core body, and each colloid inlet is formed on the connecting body.

Furthermore, the insertion hole and the core body are both conical, the framework inlet is arranged at the small-diameter end of the core body, an exposed section capable of being exposed out of the insertion hole is arranged at the small-diameter end of the core body, and the core body is fixed at the insertion hole through a fastening piece connected with the exposed section.

Further, a plurality of connection holes for connecting with an external mold are formed at one end of the core body where the skeleton outlet is formed.

Furthermore, a transition pipe fitting for connecting the colloid extruder is arranged at the colloid inlet of each colloid passage, and a transition passage for communicating the corresponding colloid passage is constructed in the transition pipe fitting.

Furthermore, the transition pipe fitting is detachably connected with the machine head main body.

Furthermore, a pipe cooling channel arranged around the transition channel is formed in the transition pipe, and a pipe cooling liquid inlet and a pipe cooling liquid outlet which are communicated with the pipe cooling channel are formed on two sides of the transition pipe respectively.

Compared with the prior art, the invention has the following advantages:

the multi-composite co-extrusion machine head can realize the compounding of at least five raw materials by reasonably arranging the skeleton channel and the colloid channel, can also be applied to two-composite products, three-composite products or more kinds of composite products to enrich the product types, has wide application range, can improve the use efficiency of a production line, can improve the product performance, reduces the product cost and meets the light-weight design requirement of the product.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a multi-composite co-extrusion head according to an embodiment of the invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a top view of the unassembled overcap of FIG. 1;

FIG. 4 is a bottom view of the unassembled lower cover of FIG. 1;

FIG. 5 is a schematic structural diagram of an upper cover according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a lower cover according to an embodiment of the present invention;

FIG. 7 is a front view of a core according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a transition piece according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view B-B of FIG. 8;

FIG. 10 is a schematic structural view of a weather strip according to an embodiment of the present invention;

description of reference numerals:

1-a connecting body, 2-a core, 301-a first transition pipe, 302-a second transition pipe, 303-a third transition pipe, 304-a fourth transition pipe, 305-a fifth transition pipe, 4-a fastener, 5-an upper cover, 6-a lower cover;

101-a first colloid passage, 1011-a first colloid outlet, 102-a second colloid passage, 1021-a second colloid outlet, 103-a third colloid passage, 1031-a third colloid outlet, 104-a fourth colloid passage, 1041-a fourth colloid outlet, 1051-a fifth colloid outlet, 106-a framework passage, 1061-a framework inlet, 1062-a framework outlet, 107-a branch passage, 108-a handpiece cooling liquid inlet, 109-a communication passage, 110-a handpiece cooling liquid outlet, 111-a positioning pin hole and 112-a connecting hole;

3011-a transition channel, 3012-a pipe cooling channel, 3013-a pipe cooling liquid inlet, 3014-a pipe cooling liquid outlet;

701-steel strip, 702-colloid one, 703-colloid two, 704-colloid three, 705-colloid four, 706-colloid five.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment relates to a multi-composite co-extrusion machine head which mainly comprises a machine head, wherein a framework channel and at least four colloid channels are formed in the machine head.

Based on the above overall structure description, the multi-composite co-extrusion handpiece of the present embodiment is described by taking a six-composite co-extrusion handpiece as an example, and the structure thereof is as shown in fig. 1 and fig. 2, and the multi-composite co-extrusion handpiece mainly includes a handpiece main body, a framework channel 106 is formed in the handpiece main body, the framework channel 106 has a framework inlet 1061 and a framework outlet 1062 which are located at two opposite sides of the handpiece main body, five colloid channels located at the peripheral side of the framework channel 106 are further formed in the handpiece main body, and each colloid channel has a colloid inlet located on the outer wall of the handpiece main body and a colloid outlet located at the same side as the framework outlet 1062.

Still referring to fig. 1 and 2, in order to facilitate the description of the present embodiment, the glue channels are respectively numbered and referred to as a first glue channel 101, a second glue channel 102, a third glue channel 103, a fourth glue channel 104 and a fifth glue channel in sequence. And the first glue passageway 101 has a first glue inlet and a first glue outlet 1011, the second glue passageway 102 has a second glue inlet and a second glue outlet 1021, the third glue passageway 103 has a third glue inlet and a third glue outlet 1031, the fourth glue passageway 104 has a fourth glue inlet and a fourth glue outlet 1041, and the fifth glue passageway has a fifth glue inlet and a fifth glue outlet 1051.

In a preferred arrangement, the framework channels 106 are arranged horizontally in the axial direction, colloid inlets of the four colloid channels and the framework channels 106 are located on the same horizontal plane, an included angle is formed between the center line of each colloid inlet and the framework inlet 1061, a colloid inlet of the other colloid channel, namely a fifth colloid inlet described below, is formed in the upper surface of the handpiece main body, and colloid outlets of the colloid channels are distributed around the framework outlet 1062.

In order to facilitate maintenance, the machine head main body comprises a connecting body 1 with a plug hole and a core body 2 detachably and fixedly connected in the plug hole, the framework outlet 1062 and each colloid outlet are formed in the core body 2, and each colloid inlet is formed in the connecting body 1.

In a preferred embodiment, the insertion hole and the core body 2 are tapered, the frame inlet 1061 is disposed at the small-diameter end of the core body 2, the small-diameter end of the core body 2 is provided with an exposed section that can be exposed outside the insertion hole, an external thread is disposed on the outer surface of the exposed section, and the core body 2 is screwed to the insertion hole via a fastening member 4, such as a nut, connected to the exposed section. So make 2 easy dismounting of core to connect the reliability height, can effectively guarantee sealing strip product quality. In the structure, the core body 2 can be fixed in a mode of screwing the nut and the exposed end, and other structures can be adopted, such as a pin or a clamping structure, only the application effect is possibly poor.

The arrangement position of each colloid outlet can be seen in fig. 7, which is located in the middle of one end of the core 2 provided with the skeleton outlet 1062, the skeleton outlet 1062 is located in the center of the core 2, the first colloid outlet 1011 is located at the right side of the skeleton outlet 1062, the second colloid outlet 1021 is located at the left side of the skeleton outlet 1062, the third colloid outlet 1031 is located at the upper side of the skeleton outlet 1062, the fourth colloid outlet 1041 is located at the lower side of the skeleton outlet 1062, and the fifth colloid outlet 1062 is located between the first colloid outlet 1011 and the third colloid outlet 1031.

The arrangement of the above structure makes it possible to set the first colloid channel 101 and the second colloid channel 102 adjacent to the framework channel 106 and separately arranged at both sides of the framework channel, the third colloid channel 103 is located at the left side of the second colloid channel 102 and horizontally extends from the third colloid inlet to the third colloid outlet 1031, and then bends upward, the fourth colloid channel 104 is located at the right side of the first colloid channel and horizontally extends from the fourth colloid inlet to the fourth colloid outlet 1041, and then bends downward, and the fifth colloid channel extends downward and forward from the fifth colloid inlet to the fifth colloid outlet 1051.

In addition, a plurality of connection holes 112 and positioning holes for connection with an external mold are formed at the end of the core body 2 where the skeleton outlet 1062 is formed. Referring still to fig. 7, the positioning holes and the connecting holes 112 are provided at the edge of the core body 2 at the end provided with the skeleton outlet 1062, and in a preferred embodiment, the positioning holes are four uniformly arranged around the skeleton outlet 1062, and the connecting holes 112 are 12 threaded holes arranged around the skeleton outlet 1062 at intervals. So make at aircraft nose main part and the not sealing strip forming die complex in-process in drawing, fix a position through four locating pin holes 111 to adopt 12 bolt-up, thereby each colloid export and the skeleton export 1062 of the 2 terminal surfaces of effective assurance core correspond with each material import on the mould better, thereby improve sealing strip product quality.

In order to prevent the rubber from being coked, as shown in fig. 3 to 6, an upper cooling channel and a lower cooling channel are respectively formed at the upper part and the lower part of the machine head main body, and the framework channel 106 is arranged between the upper cooling channel and the lower cooling channel, so that the four colloid channels of which the colloid inlets and the framework channel 106 are positioned on the same horizontal plane are also clamped between the upper cooling channel and the lower cooling channel, the upper cooling channel and the lower cooling channel can cool the four colloid channels, and the quality of the produced sealing strip is effectively ensured.

For the convenience of arrangement, in the present embodiment, the upper cooling channel and the lower cooling channel are communicated with each other via a communication channel 109 provided in the connecting body, and a head cooling liquid inlet 108 and a head cooling liquid outlet 110 are respectively provided on the side walls of the upper cooling channel and the lower cooling channel. In the concrete structure, both the upper cooling passage and the lower cooling passage are formed on the connecting body 1. The connecting body 1 comprises a connecting main body, and an upper cover 5 and a lower cover 6 which are fixedly connected with the connecting main body in a welding manner. An upper cooling channel is formed between the connecting body and the upper cover 5, and a handpiece cooling liquid inlet 108 is particularly formed on the upper cover 5, and only the position corresponding to the handpiece cooling liquid inlet 108 is shown in fig. 3; while a lower cooling channel is formed between the connecting body and the lower cover 6, a head cooling liquid outlet 110 is specifically opened on the lower cover 6, and only the position corresponding to the head cooling liquid outlet 110 is shown in fig. 4.

More specifically, as shown in fig. 3 and 4, each of the upper cooling channel and the lower cooling channel includes a plurality of branch channels disposed in one-to-one correspondence with the respective colloid channels, and the branch channels of the upper cooling channel and the lower cooling channel are connected in series, respectively, so as to achieve a better cooling effect.

In order to facilitate the connection with the outlet of the colloid extruder, a transition pipe fitting for connecting the colloid extruder is further arranged at the colloid inlet of each colloid passage, and a transition passage 3011 for communicating the corresponding colloid pipeline is constructed in the transition pipe fitting. Still referring to fig. 2, a first transition pipe 301 is connected to the first glue inlet, a second transition pipe 302 is connected to the second glue inlet, a third transition pipe 303 is connected to the third glue inlet, a fourth transition pipe 304 is connected to the fourth glue inlet, and a fifth transition pipe 305 is connected to the fifth glue inlet, and the diameter and bending degree of each transition pipe can be set as required.

Since the structures of the transition pipes are similar, the following description will be made in detail with reference to the structure of the first transition pipe 301 shown in fig. 8 and 9, and the rest of the transition pipes are the same as the first transition pipe 301, and the detailed description thereof will be omitted. A transition channel 3011 is formed in the middle of the first transition pipe 301, the transition channel 3011 is communicated with the corresponding colloid channel, a pipe cooling channel 3012 surrounding the transition channel 3011 is further configured in the first transition pipe 301, and a pipe cooling inlet 3013 and a pipe cooling outlet 3014 communicating with the pipe cooling channel 3012 are formed on two sides of the first transition pipe 301, respectively, so that the cooling liquid flows in from the pipe cooling inlet 3013, can simultaneously flow through the upper and lower sides of the pipe cooling channel 3012 shown in fig. 9, and finally flows out from the pipe cooling outlet 3014.

Still referring to fig. 1 and 2, in order to facilitate the arrangement of the gel extruder, the angle α 1 between the axial centerline of the fifth transition pipe 305 and the axial centerline of the carcass channel 106 is 90 °, the angle α 2 between the axial centerline of the first transition pipe 301 and the axial centerline of the carcass channel 106 is 135 °, the angle α 3 between the axial centerline of the second transition pipe 302 and the axial centerline of the carcass channel 106 is 135 °, the angle α 4 between the axial centerline of the third transition pipe 303 and the axial centerline of the carcass channel 106 is 80 °, and the angle α 5 between the axial centerline of the fourth transition pipe 304 and the axial centerline of the carcass channel 106 is 80 °.

In addition, for convenient maintenance, be detachable connection between transition pipe fitting and the aircraft nose main part. In this embodiment, the colloid inlet is provided with a threaded hole at a position close to the colloid inlet, and each transition pipe is screwed and fixed in the corresponding threaded hole. Of course, in addition, the transition pipe and the handpiece body may be connected by other means, such as flange connection, or may be welded or other existing connection means.

The schematic structural diagram of the sealing strip produced by using the multi-composite co-extrusion handpiece of the embodiment can be shown in fig. 10, which needs 6 materials for co-extrusion molding, wherein a first colloid 702 is also a micro-hair hole dense glue extruded from a first colloid outlet 1011, a second colloid 703 is also a dense glue extruded from a second colloid outlet 1021, a third colloid 704 is also a dense glue extruded from a fourth colloid outlet 1041, a fourth colloid 705 is also a dense glue extruded from a third colloid outlet 1031, a fifth colloid 706 is also a sponge extruded from a fifth colloid outlet 1051, and the steel strip 701 is output from the framework passage 106. It should be noted here that the skeleton channel can transport fiber, copper or other materials in addition to the steel belt.

The multi-composite co-extrusion machine head can realize the compounding of at least five raw materials by reasonably arranging the skeleton channel 106 and the colloid channel, can also be applied to two-composite products, three-composite products or more composite products to enrich the product types, has wide application range, can improve the use efficiency of a production line, can improve the product performance, reduces the product cost and meets the light-weight design requirements of the product.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.