CN114379050A - One-die double-cavity extrusion die for framework-containing automobile sealing strip product - Google Patents

One-die double-cavity extrusion die for framework-containing automobile sealing strip product Download PDF

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Publication number
CN114379050A
CN114379050A CN202210159694.8A CN202210159694A CN114379050A CN 114379050 A CN114379050 A CN 114379050A CN 202210159694 A CN202210159694 A CN 202210159694A CN 114379050 A CN114379050 A CN 114379050A
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CN
China
Prior art keywords
glue
soft
cavity
template
die
Prior art date
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Pending
Application number
CN202210159694.8A
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Chinese (zh)
Inventor
李家旭
周民春
徐亚彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hande Taicang Sealing System Co ltd
Henniges China Sealing Systems Co ltd
Hande Automotive Sealing System Tieling Co ltd
Original Assignee
Hande Taicang Sealing System Co ltd
Henniges China Sealing Systems Co ltd
Hande Automotive Sealing System Tieling Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hande Taicang Sealing System Co ltd, Henniges China Sealing Systems Co ltd, Hande Automotive Sealing System Tieling Co ltd filed Critical Hande Taicang Sealing System Co ltd
Priority to CN202210159694.8A priority Critical patent/CN114379050A/en
Publication of CN114379050A publication Critical patent/CN114379050A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/763—Vent constructions, e.g. venting means avoiding melt escape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to the technical field of extrusion molding, in particular to a framework-containing automobile sealing strip product one-die double-cavity extrusion die, which comprises: the glue feeding template, the soft glue feeding assembly and the hard glue feeding assembly are sequentially stacked; a soft rubber main runner is arranged in the soft rubber inlet assembly, an auxiliary rubber runner in the soft rubber inlet assembly is arranged corresponding to the soft rubber sub-runner, one end of the auxiliary rubber runner is communicated with the soft rubber sub-runner, and the other end of the auxiliary rubber runner penetrates through the soft rubber inlet assembly; the preforming rubber channel is communicated with the auxiliary rubber channel; the ebonite advances to be provided with a plurality of ebonite flow distribution channels in the subassembly, and the ebonite advances to be provided with ebonite one-sided and becomes the die cavity, and the flexible glue becomes the die cavity, advances gluey subassembly by advancing gluey template towards the flexible glue and extends and run through the flexible glue and advance gluey subassembly. Through the multilayer structure of the range upon range of setting of design to design the flow channel of flexible glue and ebonite respectively, two parts enter gluey about dividing into, and cold glue, ebonite advance gluey simultaneously, advance gluey pressure more even, have realized that the two-chamber of taking skeleton class product extrudes simultaneously.

Description

One-die double-cavity extrusion die for framework-containing automobile sealing strip product
Technical Field
The invention relates to the technical field of extrusion molding, in particular to a framework-containing automobile sealing strip product one-die double-cavity extrusion die.
Background
In the production and processing, the extrusion processing is a method with a wider application range, and can be used for processing plastic parts, rubber parts and metal parts, and the extrusion processing is to use an extruder to realize the extrusion molding of various products by matching with various extruder heads; in the increasingly large automobile market, the production and processing requirements of automobile parts are large, such as automobile sealing strips, although the automobile sealing strips are small parts, the quality of the automobile sealing strips is directly related to the sealing of automobile doors, and the use amount of the automobile sealing strips is large.
When the automobile sealing strip with the metal framework is subjected to extrusion molding, the requirement on the flowability of an extruded rubber material is high, the condition that the framework cannot be completely coated and bubbles appear on the surface of a product often occurs during extrusion, and the product is scrapped. When the automobile sealing strip with the metal framework is extruded and molded, the extrusion speed needs to be strictly controlled, so that the extrusion efficiency is low.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of overcoming the defects of poor extrusion molding quality and low efficiency of the automobile sealing strip with the metal framework in the prior art, and provides a framework-containing automobile sealing strip product one-die double-cavity extrusion die.
In order to solve the technical problem, the invention provides a framework-containing automobile sealing strip product one-die double-cavity extrusion die, which comprises: the glue feeding template, the soft glue feeding assembly and the hard glue feeding assembly are sequentially stacked;
the flexible glue inlet assembly is internally provided with a flexible glue main runner, the inlet end of the flexible glue main runner is arranged on the side surface of the flexible glue inlet assembly, the outlet end of the flexible glue main runner is provided with a plurality of flexible glue sub-runners, a plurality of auxiliary glue runners are axially arranged in the flexible glue inlet assembly, the auxiliary glue runners are arranged corresponding to the flexible glue sub-runners, one end of each auxiliary glue runner is communicated with the corresponding flexible glue sub-runner, and the other end of each auxiliary glue runner is arranged towards the glue inlet template and penetrates through the flexible glue inlet assembly;
one side of the glue inlet template, which faces the soft glue inlet assembly, is provided with a preformed glue channel, and the preformed glue channel is communicated with the auxiliary glue channel;
a plurality of hard glue sub-runners are arranged in the hard glue feeding assembly, the inlet ends of the plurality of hard glue sub-runners are all arranged on the side surface of the hard glue feeding assembly, a hard glue forming cavity is arranged on one surface of the hard glue feeding assembly, a skeleton cavity penetrates through the hard glue feeding assembly along the axial direction, and the skeleton cavity is communicated with the hard glue forming cavity;
further comprising:
the flexible glue molding cavity is formed by a glue feeding template, a glue feeding assembly extends towards the flexible glue and penetrates through the flexible glue and enters the glue molding assembly, the flexible glue molding cavity is aligned with the hard glue molding cavity, and the preformed glue channel is communicated with the flexible glue molding cavity.
Optionally, advance to be provided with the intake duct along the axial on the gluey template, the intake duct runs through into gluey template and partially extends to the flexible glue and advances to glue the subassembly in, the intake duct is located between preformed rubber way and the flexible glue shaping chamber, and installs the air flue abaculus in the intake duct, reserves between air flue abaculus and the intake duct lateral wall and crosses gluey space, is equipped with the intercommunication groove between intake duct and the flexible glue shaping chamber.
Optionally, advance to glue the template and deviate from the flexible glue and advance to be equipped with on the one side of gluing the subassembly and advance gluey groove, flexible glue molding chamber and intake duct all with advance gluey groove intercommunication.
Optionally, the air flue inserted block includes location portion and design portion, and the design portion is located in the intake duct, and location portion embedding is installed in advancing gluey template and/or flexible glue and advance gluey subassembly.
Optionally, a hollow pipe is installed in the framework cavity, and the hollow pipe cavity is used for accommodating the framework body.
Optionally, the hollow tube extends into the soft glue forming cavity.
Optionally, the soft glue feeding assembly comprises a first soft glue template and a second soft glue template which are arranged in a stacked mode, and the soft glue main runner is arranged between the first soft glue template and the second soft glue template.
Optionally, the glue inlet assembly includes a first glue template and a second glue template, and the glue runner is disposed between the first glue template and the second glue template.
Optionally, the glue injection molding machine further comprises a positioning hole, and the positioning hole sequentially penetrates through the glue injection molding plate, the soft glue injection assembly and the hard glue injection assembly along the axial direction.
Optionally, the side edges of the soft glue inlet assembly and the hard glue inlet assembly are provided with die cavities.
The technical scheme of the invention has the following advantages:
1. the invention provides a framework-containing automobile sealing strip product one-die double-cavity extrusion die, which comprises: the glue feeding template, the soft glue feeding assembly and the hard glue feeding assembly are sequentially stacked; the flexible glue inlet assembly is internally provided with a flexible glue main runner, the inlet end of the flexible glue main runner is arranged on the side surface of the flexible glue inlet assembly, the outlet end of the flexible glue main runner is provided with a plurality of flexible glue sub-runners, a plurality of auxiliary glue runners are axially arranged in the flexible glue inlet assembly, the auxiliary glue runners are arranged corresponding to the flexible glue sub-runners, one end of each auxiliary glue runner is communicated with the corresponding flexible glue sub-runner, and the other end of each auxiliary glue runner is arranged towards the glue inlet template and penetrates through the flexible glue inlet assembly; one side of the glue inlet template, which faces the soft glue inlet assembly, is provided with a preformed glue channel, and the preformed glue channel is communicated with the auxiliary glue channel; a plurality of hard glue sub-runners are arranged in the hard glue feeding assembly, the inlet ends of the plurality of hard glue sub-runners are all arranged on the side surface of the hard glue feeding assembly, a hard glue forming cavity is arranged on one surface of the hard glue feeding assembly, a skeleton cavity penetrates through the hard glue feeding assembly along the axial direction, and the skeleton cavity is communicated with the hard glue forming cavity; further comprising: the flexible glue molding cavity is formed by a glue feeding template, a glue feeding assembly extends towards the flexible glue and penetrates through the flexible glue and enters the glue molding assembly, the flexible glue molding cavity is aligned with the hard glue molding cavity, and the preformed glue channel is communicated with the flexible glue molding cavity.
In the process of producing products by using the extrusion die, the skeleton body is arranged in the skeleton cavity, soft glue is introduced into the die through the inlet of the soft glue main runner, and hard glue is introduced into the die through the inlet of the hard glue sub-runner. After entering the mold, the soft glue sequentially passes through the main soft glue channel, the sub-soft glue channel, the auxiliary glue channel and the pre-forming glue channel, and firstly flows to the glue inlet template and then enters the soft glue forming cavity for shaping; the hard rubber directly enters the hard rubber forming cavity for shaping through the hard rubber sub-runner. Because the soft glue has large fluidity, the cooling and setting time is longer, the hard glue has poor fluidity, and the setting is easier. Through making the flexible glue flow and then letting in the flexible glue molding chamber behind the longer route, the ebonite directly lets in the ebonite molding chamber through ebonite subchannel for flexible glue and ebonite can cool off the design simultaneously and form a body structure. Through the multilayer structure of the range upon range of setting of design to the flow channel of design flexible glue and the flow channel of ebonite respectively, two parts advance gluey about falling into, and cold glue, ebonite advance gluey simultaneously, advance gluey pressure more even, have realized extruding simultaneously with the two-chamber of skeleton class product, have promoted product extrusion moulding's production efficiency greatly.
2. The invention provides a one-die double-cavity extrusion die for an automobile sealing strip product containing a framework, wherein an air inlet channel is axially arranged on a glue inlet template, penetrates through the glue inlet template and partially extends into a soft glue inlet assembly, the air inlet channel is arranged between a preformed glue channel and a soft glue forming cavity, an air channel insert is arranged in the air inlet channel, a glue passing space is reserved between the air channel insert and the side wall of the air inlet channel, and a communicating groove is formed between the air inlet channel and the soft glue forming cavity. Through setting up the intake duct, advance gluey while with the air escape in the mould in to the mould, avoid appearing great bubble in the product after the shaping, promote the quality of product.
3. According to the one-die double-cavity extrusion die for the automobile sealing strip product containing the framework, the glue inlet groove is formed in the side, away from the soft glue inlet assembly, of the glue inlet die plate, and the soft glue forming cavity and the air inlet channel are communicated with the glue inlet groove. Software flows into the soft glue forming cavity after passing through the pre-forming glue channel, and the soft glue is prevented from overflowing from the glue inlet template to flow out of the mold in the filling process by arranging the glue inlet groove.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of the working state of a one-die dual-cavity extrusion die for a framework-containing automotive weatherstrip product according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a one-die dual-cavity extrusion die for a framework-containing automotive weatherstrip product according to an embodiment of the present invention.
FIG. 3 is an exploded view of a one-die dual-cavity extrusion die for a framework-containing automotive weatherstrip product according to an embodiment of the present invention.
FIG. 4 is an exploded view from another angle of a one-die dual-cavity extrusion die for a framework-containing automotive weatherstrip product according to an embodiment of the present invention.
Fig. 5 is a schematic top surface structure view of a glue inlet template according to an embodiment of the present invention.
Fig. 6 is a schematic bottom structure view of a glue inlet template according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of the structure of an airway insert provided in an embodiment of the invention.
Fig. 8 is a schematic top surface structure view of the first soft rubber template according to the embodiment of the present invention.
Fig. 9 is a schematic bottom structure view of the first soft rubber template according to the embodiment of the present invention.
Fig. 10 is a schematic top surface structure view of a second soft rubber template provided in the embodiment of the present invention.
Fig. 11 is a schematic bottom structure view of a second soft rubber template according to an embodiment of the present invention.
Fig. 12 is a schematic top surface structure diagram of a first hard glue template according to an embodiment of the invention.
Fig. 13 is a schematic bottom structure view of a first hard glue template according to an embodiment of the invention.
Fig. 14 is a schematic top view of a second hard glue template according to an embodiment of the invention.
Fig. 15 is a schematic structural view of a glue passing space provided in an embodiment of the present invention.
Fig. 16 is a schematic structural view of a communication groove provided in the embodiment of the present invention.
Fig. 17 is a structural view of another angle of the communication groove provided in the embodiment of the present invention.
Fig. 18 is a schematic structural view of the air channel insert and the first soft rubber template in cooperation with each other according to an embodiment of the present invention.
Fig. 19 is a schematic structural view of the air duct insert and the glue inlet form provided in the embodiment of the present invention.
Fig. 20 is a schematic structural view of the hollow tube and the framework cavity in cooperation with each other according to the embodiment of the present invention.
Description of reference numerals: 1. feeding a glue template; 2. a first soft rubber template; 3. a second soft rubber template; 4. a first hard glue template; 5. a second hard glue template; 6. a soft rubber main runner; 7. a soft rubber shunt; 8. an auxiliary glue channel; 9. performing a rubber channel; 10. an air inlet channel; 11. an air passage insert; 12. a positioning part; 13. a shaping part; 14. a communicating groove; 15. a glue inlet groove; 16. a hard glue runner; 17. a hard glue forming cavity; 18. a skeletal cavity; 19. a hollow pipe; 20. a skeleton body; 21. positioning holes; 22. opening a mold cavity; 23. forming a cavity by using soft rubber; 24. and (5) gluing space.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 to fig. 20 show that the one-die dual-cavity extrusion die for the framework-containing automotive weatherstrip product provided by this embodiment includes: the glue feeding template 1, the soft glue feeding assembly and the hard glue feeding assembly are sequentially stacked.
The flexible glue advances gluey subassembly its inside flexible glue sprue 6 that is provided with, the flexible glue advances gluey subassembly side is located to 6 entry ends of flexible glue sprue, and the exit end of flexible glue sprue 6 is provided with two flexible glue subchannels 7, and the flexible glue advances to be provided with two supplementary gluey ways 8 along the axial in the gluey subassembly, and supplementary gluey way 8 corresponds the setting with flexible glue subchannel 7, and supplementary gluey 8 one end of saying and 7 intercommunications of flexible glue subchannel, and the other end advances gluey template 1 setting and runs through the flexible glue and advance gluey subassembly setting towards advancing gluey template. In this embodiment, the soft glue advances to glue the subassembly and includes first soft glue template 2 and the soft glue template 3 of range upon range of setting, and soft glue sprue 6 is located between first soft glue template 2 and the second soft glue template 3, and wherein the soft glue template 3 of second advances to glue the subassembly setting towards the ebonite.
Advance gluey template 1 and advance gluey subassembly towards the flexible glue one side and be provided with preforming glue track 9, preforming glue track 9 corresponds the intercommunication setting with supplementary glue track 8. Advance and be provided with intake duct 10 along the axial on the gluey template 1, intake duct 10 runs through into gluey template 1 and partially extend to the flexible glue and advance gluey subassembly in, specifically, intake duct 10 runs through first gluey template 1 setting of advancing. The air inlet channel 10 is arranged between the preformed rubber channel 9 and the soft rubber molding cavity 23, an air channel insert 11 is installed in the air inlet channel 10, a rubber passing space 24 is reserved between the air channel insert 11 and the side wall of the air inlet channel 10, and a communicating groove 14 is formed between the air inlet channel 10 and the soft rubber molding cavity 23. The air flue insert 11 comprises a positioning part 12 and a shaping part 13, the shaping part 13 is arranged in the air flue 10, and the positioning part 12 is embedded in the glue inlet template 1 and/or the soft glue inlet assembly. The glue inlet groove 15 is formed in the side, deviating from the soft glue inlet assembly, of the glue inlet template 1, and the soft glue forming cavity 23 and the air inlet channel 10 are communicated with the glue inlet groove 15.
Two ebonite subchannel 16 are provided with in the ebonite advances gluey subassembly, and the ebonite advances gluey subassembly side all is located to the entry end of two ebonite subchannel 16, and just two ebonite subchannel 16 entry of sharing, and the ebonite advances gluey subassembly and is provided with ebonite shaping chamber 17 in one side, and the ebonite advances to run through in the gluey subassembly along the axial and is provided with skeleton chamber 18, skeleton chamber 18 and ebonite shaping chamber 17 intercommunication. The flexible glue molding cavity 23 is formed by extending the flexible glue molding assembly towards the flexible glue molding assembly by the glue feeding template 1 and penetrating the flexible glue molding assembly, the flexible glue molding cavity 23 is aligned with the hard glue molding cavity 17, and the preformed glue channel 9 is communicated with the flexible glue molding cavity 23. The hollow pipe 19 is arranged in the framework cavity 18, and the inner cavity of the hollow pipe 19 is used for accommodating the framework body 20. The hollow tube 19 extends into the soft glue forming cavity 23. In this embodiment, the glue inlet assembly includes a first glue template 4 and a second glue template 5, and the glue runner 16 is disposed between the first glue template 4 and the second glue template 5, wherein the first glue template 4 is disposed adjacent to the second glue template 3, and the glue forming cavity 17 is disposed on one side of the first glue template 4 facing the second glue template 3.
In order to facilitate the positioning of the glue feeding module 1, the soft glue feeding assembly and the hard glue feeding assembly, two groups of positioning holes 21 are axially arranged, and the glue feeding module 1, the first soft glue module 2, the second soft glue module 3, the first hard glue module 4 and the second hard glue module 5 sequentially penetrate through the positioning blocks. In order to facilitate the mold opening, the side edges of the first soft rubber mold plate 2, the second soft rubber mold plate 3 and the first hard rubber mold plate 4 are provided with mold opening grooves 22.
In the process of producing products by using the extrusion die, the skeleton body 20 is arranged in the skeleton cavity 18, soft glue is introduced into the die through the inlet of the soft glue main runner 6, and hard glue is introduced into the die through the inlet of the hard glue sub-runner 16. After entering the mold, the soft gum sequentially passes through a soft gum main runner 6, a soft gum sub-runner 7, an auxiliary rubber runner 8 and a preformed rubber runner 9, and firstly flows to the glue inlet template 1 and then enters a soft gum molding cavity 23 for molding; the hard glue directly enters into a hard glue molding cavity 17 for molding through a hard glue runner 16. Because the soft glue has large fluidity, the cooling and setting time is longer, the hard glue has poor fluidity, and the setting is easier. Through making the flexible glue flow and then leading into flexible glue molding cavity 23 behind the longer route, the ebonite directly leads into ebonite molding cavity 17 through ebonite subchannel 16 for flexible glue and ebonite can cool off the design simultaneously and form a body structure. Through the multilayer structure of the range upon range of setting of design to the flow channel of design flexible glue and the flow channel of ebonite respectively, two parts advance gluey about falling into, and cold glue, ebonite advance gluey simultaneously, advance gluey pressure more even, have realized extruding simultaneously with the two-chamber of skeleton class product, have promoted product extrusion moulding's production efficiency greatly.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. The utility model provides a contain skeleton class car sealing strip product one mould two-chamber extrusion tooling which characterized in that includes: the glue feeding template (1), the soft glue feeding assembly and the hard glue feeding assembly are sequentially stacked;
a soft rubber main runner (6) is arranged in the soft rubber glue inlet assembly, the inlet end of the soft rubber main runner (6) is arranged on the side surface of the soft rubber glue inlet assembly, the outlet end of the soft rubber main runner (6) is provided with a plurality of soft rubber sub-runners (7), a plurality of auxiliary rubber runners (8) are axially arranged in the soft rubber glue inlet assembly, the auxiliary rubber runners (8) are arranged corresponding to the soft rubber sub-runners (7), one end of each auxiliary rubber runner (8) is communicated with the corresponding soft rubber sub-runner (7), and the other end of each auxiliary rubber runner is arranged towards the corresponding rubber glue inlet template (1) and penetrates through the soft rubber glue inlet assembly;
one side, facing the soft glue inlet assembly, of the glue inlet template (1) is provided with a preformed glue channel (9), and the preformed glue channel (9) is communicated with the auxiliary glue channel (8);
a plurality of hard glue runners (16) are arranged in the hard glue feeding assembly, the inlet ends of the hard glue runners (16) are all arranged on the side surface of the hard glue feeding assembly, a hard glue forming cavity (17) is arranged on one surface of the hard glue feeding assembly, a framework cavity (18) penetrates through the hard glue feeding assembly along the axial direction, and the framework cavity (18) is communicated with the hard glue forming cavity (17);
further comprising:
flexible glue becomes die cavity (23), by advance gluey template (1) orientation the flexible glue advances gluey subassembly and extends and runs through the flexible glue advances gluey subassembly, flexible glue becomes die cavity (23) with ebonite becomes die cavity (17) and aligns the setting, preforming glue way (9) with communicate between flexible glue becomes die cavity (23).
2. The one-die two-cavity extrusion die for the automobile sealing strip product containing the framework is characterized in that an air inlet channel (10) is axially arranged on the glue inlet template (1), the air inlet channel (10) penetrates through the glue inlet template (1) and partially extends into the soft glue inlet assembly, the air inlet channel (10) is arranged between the preformed glue channel (9) and the soft glue forming cavity (23), an air passage embedded block (11) is installed in the air inlet channel (10), an adhesive passing space is reserved between the air passage embedded block (11) and the side wall of the air inlet channel (10), and a communicating groove (14) is formed between the air inlet channel (10) and the soft glue forming cavity (23).
3. The one-die double-cavity extrusion die for the automobile sealing strip product containing the framework is characterized in that a glue inlet groove (15) is formed in one surface, deviating from the glue inlet assembly, of the glue inlet die plate (1), and the soft glue forming cavity (23) and the air inlet channel (10) are communicated with the glue inlet groove (15).
4. The one-die double-cavity extrusion die for the automobile sealing strip product containing the framework is characterized in that the air channel insert (11) comprises a positioning part (12) and a shaping part (13), the shaping part (13) is arranged in the air inlet channel (10), and the positioning part (12) is embedded and installed in the glue inlet template (1) and/or the soft glue inlet assembly.
5. The one-die double-cavity extrusion die for the automobile sealing strip product containing the skeleton as claimed in any one of claims 1 to 3, wherein a hollow pipe (19) is installed in the skeleton cavity (18), and the inner cavity of the hollow pipe (19) is used for accommodating the skeleton body (20).
6. The one-die double-cavity extrusion die for the skeleton-containing automobile sealing strip product as claimed in claim 5, wherein the hollow tube (19) extends into the soft rubber molding cavity (23).
7. The one-die double-cavity extrusion die for the automobile sealing strip product containing the framework is characterized in that the soft glue inlet assembly comprises a first soft glue template (2) and a second soft glue template (3) which are arranged in a stacked mode, and the soft glue main runner (6) is arranged between the first soft glue template (2) and the second soft glue template (3).
8. The one-die double-cavity extrusion die for the automobile sealing strip product containing the framework as claimed in any one of claims 1 to 3, wherein the hard glue feeding assembly comprises a first hard glue template (4) and a second hard glue template (5), and the hard glue runner (16) is arranged between the first hard glue template (4) and the second hard glue template (5).
9. The one-die double-cavity extrusion die for the automobile sealing strip product containing the framework as claimed in any one of claims 1 to 3, further comprising a positioning hole (21), wherein the positioning hole (21) sequentially penetrates through the glue feeding template (1), the soft glue feeding assembly and the hard glue feeding assembly along the axial direction.
10. The one-die double-cavity extrusion die for the automobile sealing strip product containing the framework as claimed in any one of claims 1 to 3, wherein the side edges of the soft glue inlet component and the hard glue inlet component are provided with die slots (22).
CN202210159694.8A 2022-02-21 2022-02-21 One-die double-cavity extrusion die for framework-containing automobile sealing strip product Pending CN114379050A (en)

Priority Applications (1)

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CN202210159694.8A CN114379050A (en) 2022-02-21 2022-02-21 One-die double-cavity extrusion die for framework-containing automobile sealing strip product

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