CN201158134Y - Extrusion mould - Google Patents
Extrusion mould Download PDFInfo
- Publication number
- CN201158134Y CN201158134Y CNU2007201944824U CN200720194482U CN201158134Y CN 201158134 Y CN201158134 Y CN 201158134Y CN U2007201944824 U CNU2007201944824 U CN U2007201944824U CN 200720194482 U CN200720194482 U CN 200720194482U CN 201158134 Y CN201158134 Y CN 201158134Y
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- China
- Prior art keywords
- panel
- base plate
- extrusion die
- feeder
- cavity
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- Expired - Lifetime
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
An extrusion mold comprises a bottom plate (1) and a face plate (2) connected with each other and capable of being in a mold-closing state, wherein a frame penetration cavity (3) is formed at the center of the bottom plate (1) to penetrate along the axial direction; a cavity (4) is formed at the center of the face plate (2) to penetrate along the axial direction, and is communicated with the frame penetration cavity (3); a glue inlet (5) is also formed on the extrusion mold and is communicated with the cavity (4); and a shaping adjuster (11) is arranged on the back side of the face plate (2) and positioned at an extrusion port (12) of the cavity. By arranging the shaping adjuster on the back side of the panel and the extrusion port of the cavity, the extrusion mold can compensate for the deformation of the extruded product to ensure the accurate shape size of the extruded product, thus producing product meeting the requirement and greatly reducing the rejection rate.
Description
Technical field
The utility model relates to a kind of extrusion die, more particularly, relates to a kind of extrusion die that moulding has the parts of metallic framework that is used for.
Background technology
Usually utilize extrusion die to come moulding to have the parts of metallic framework in the prior art, for example used sealing strip in the vehicle.This sealing strip is widely used in the positions such as car door, vehicle window, skylight, engine case and boot of vehicle, mainly plays the effect of sound insulation, dustproof, water-impervious and damping.This automobile-used sealing strip is compared with common sealing article, and its quality for product has higher requirement, and is smooth smooth as requiring in appearance, and fit on requires and must closely cooperate reliably with car body.
The existing this parts of moulding that are used for metallic framework, extrusion die as automobile-used sealing strip generally includes base plate and the panel that interconnects and can form the matched moulds state, the center of described base plate is formed with the skeleton permeate chamber that connects vertically, the center of described panel is formed with the die cavity that connects vertically, described die cavity and described skeleton permeate chamber connect, be formed with glue-feeder on the sidewall of described base plate, the front of described base plate is formed with the runner that is communicated with described glue-feeder, the front of described panel is formed with spew groove around the port of described die cavity, and the end of the runner on the described base plate extends in the zone at the spew groove place on the described panel.
Yet, the defective of this extrusion die is, when sealing strip when the die cavity port of back side of panel is extruded, owing to be subjected to gravity and material cooled Effect on Performance, certain deformation will take place in the sealing strip of extruding, cause its geomery not to be inconsistent, can't realize closely assembling reliably, thereby caused the increase of percent defective with the product that require to form.
The utility model content
The purpose of this utility model is the high defective of extruded product percent defective of producing at existing extrusion die, provides a kind of and can guarantee that extruded product has qualified geomery, thereby reduced the extrusion die of percent defective.
The extrusion die that the utility model provides comprises base plate 1 and the panel 2 that interconnects and can form the matched moulds state, the center of described base plate 1 is formed with the skeleton permeate chamber 3 that connects vertically, the center of described panel 2 is formed with the die cavity 4 that connects vertically, described die cavity 4 connects with described skeleton permeate chamber 3, also be formed with glue-feeder 5 on the described extrusion die, described glue-feeder 5 is connected with described die cavity 4, wherein, the back side of described panel 2 is provided with typing regulating part 11, and what described typing regulating part 11 was positioned at described die cavity extrudes port 12 places.
The extrusion die that the utility model provides is by being provided with the typing regulating part in the back side of panel, the port of extruding of die cavity, can the distortion of extruded product be compensated, to guarantee that extruded product has correct geomery, thereby guarantee to produce satisfactory product, therefore greatly reduce percent defective.
Description of drawings
The cross-sectional view of the extrusion die that Fig. 1 provides for the utility model;
The perspective view of the base plate of the extrusion die that Fig. 2 provides for the utility model;
The perspective view of the panel of the extrusion die that Fig. 3 provides for the utility model;
The floor map at the back side of the panel of the extrusion die that Fig. 4 provides for the utility model;
Fig. 5 is the cross sectional shape schematic diagram of the sealing strip that utilizes existing extrusion die and extrude.
The specific embodiment
Before being described in detail, at first need to prove, " front " mentioned in this specification and claims book, i.e. " front of base plate " and " front of panel ", under the situation of not doing specified otherwise, be meant the face that base plate and panel contact each other when matched moulds, promptly " front of base plate " be meant base plate when matched moulds and contacted of panel, and " front of panel " be meant panel when matched moulds and contacted of base plate; " back side " mentioned in this specification and claims book, i.e. " back side of base plate " and " back side of panel ", under the situation of not doing specified otherwise, be meant the face that base plate and panel are not in contact with one another each other when matched moulds, promptly " back side of base plate " is meant the face that does not contact with panel of base plate when matched moulds, and " back side of panel " is meant the face that does not contact with base plate of panel when matched moulds.
Below, in conjunction with the accompanying drawings, the extrusion die that the utility model is provided describes in detail.
As shown in Figure 1, the extrusion die that provides of the utility model comprises base plate 1 and panel 2.Described base plate 1 and panel 2 can be realized interconnecting by variety of way well known in the art, and for example screw connection, pin connection, riveted joint etc. are so that base plate 1 and panel 2 form the matched moulds state.
The center of described base plate 1 is formed with the skeleton permeate chamber 3 that connects vertically, is used to allow metallic framework therefrom to pass, and therefore the geomery of described skeleton permeate chamber 3 can be decided according to the concrete geomery of metallic framework.
The center of described panel 2 is formed with vertically the die cavity 4 that connects, and described die cavity 4 connects with described skeleton permeate chamber 3, and therefore the metallic framework that passes from described skeleton permeate chamber 3 penetrates extension in the described die cavity 4.Described die cavity 4 has the chamber of the parts of metallic framework as moulding, it is fixed that its geomery can come according to the appearance and size of the parts of wanting moulding, both needed to hold metallic framework, also needed the sizing material that holds extrusion molding and wrap metallic framework as core.
Also have glue-feeder 5 on the described extrusion die, described glue-feeder 5 is connected with the gum outlet of extruder, to inject sizing material in extrusion die.Described glue-feeder 5 both can be formed on the sidewall of base plate 1, also can be formed on the sidewall of panel 2, mainly be that described glue-feeder 5 is connected with described die cavity 4, to guarantee to flow into described die cavity 4 smoothly, to carry out extrusion molding from the sizing material that described glue-feeder 5 injects.
Under the preferable case, described extrusion die also comprises adapter sleeve, in order to the gum outlet of connection extruder and the glue-feeder 5 of described extrusion die.Described adapter sleeve can be installed in described glue-feeder 5 places by variety of way well known in the art, for example by welding, screwing etc., preferably with described adapter sleeve weldering extremely at described glue-feeder 5 places.
Under the preferable case, as shown in Figure 2, described glue-feeder 5 is formed on the sidewall of described base plate 1, and the front of described base plate 1 is formed with runner 6, and preferred described runner 6 radially is formed with two symmetrically, to carry sizing materials from two relative directions.Can be connected by the passage that is formed at base plate 1 inside between described glue-feeder 5 and the runner 6, thereby the sizing material that injects from glue-feeder 5 can be transported to the runner 6 that is formed at base plate 1 front.
Simultaneously, as shown in Figure 3, the front of described panel 2 is formed with spew groove 7 around the port one 3 of clamp-oning of described die cavity 4, and the end of the runner 6 on the described base plate 1 extends in the zone at spew groove 7 places on the described panel 2.Like this, the sizing material that the glue-feeder 5 from the described base plate 1 injects will be through the conveying of the base plate 1 positive runner 6 that forms, and is injected in the panel 2 positive spew grooves 7 that form, and then in the inflow die cavity 4 with the extrusion molding of metallic framework one.
In addition, as shown in Figure 4, the back side of the described panel 2 of the extrusion die that the utility model provides also is provided with typing regulating part 11, and what described typing regulating part 11 was positioned at described die cavity extrudes port 12 places.Described typing regulating part 11 can form various suitable shapes as required, as sheet, strip, bar-shaped or the like.
Because as shown in Figure 5, when the parts that utilize existing extrusion die to extrude to have metallic framework, during as automobile-used sealing strip, the shape of the finished product sealing strip of extruding 14 should be among Fig. 5 shown in the solid line on request, but because the influence of gravity and material cooled contraction, the press strip part 15 of the actual finished product sealing strip of extruding 14 will produce sagging distortion, so true form as shown in phantom in Figure 5, thereby the product and the designing requirement that cause actual production to go out are not inconsistent, and form waste product.
In order to address the above problem, the utility model is provided with typing regulating part 11 at port 12 places that extrude of die cavity, so that this typing regulating part 11 can play the press strip part 15 of the finished product sealing strip 14 that will extrude supports certain altitude along the direction opposite with its sagging deformation direction effect.Therefore, when sealing strip during from the extruding port 12 and extrude of die cavity, 11 press strip parts 15 with sealing strip 14 of typing regulating part hold up certain altitudes, and promptly holder is to position shown in dotted lines in Figure 4.Like this, after the sealing strip of extruding is through typing regulating part 11, because under the influence of gravity and material cooled contraction, sagging distortion can take place in described press strip part 15, certain altitude promptly descends, so press strip part 15 just can be returned to the position shown in the solid line among Fig. 4, promptly be returned to the product that makes that meets the initial design requirement and have the position of correct geomery.This shows, utilize described typing regulating part 11 can the sagging distortion of extruded product be compensated, have correct geomery to guarantee extruded product, thereby can guarantee that the product of producing adheres to specification, therefore greatly reduce percent defective.
Described certain altitude, promptly utilize typing regulating part 11 that height and the press strip part 15 that press strip part 15 holds up can be issued the height of giving birth to the distortion of hanging down in the influence of gravity and material cooled contraction, can determine according to the performance of material and the concrete geomery of product, by the typing regulating part height that height that the part of sagging distortion holds up equals will take place after this part is extruded sagging distortion be taken place for the meeting of extruded product as long as guarantee.
Under the preferable case, for to described typing regulating part the height that can hold up regulate, described typing regulating part 11 is designed to can rotate around the axis, an end that is about to described typing regulating part 11 is rotatably mounted on the described panel 2, for example can realize by various connectors such as pin, screws.Like this, just can be according to the different distortion trend and the degree of extruded product, described typing regulating part 11 is suitably rotated, and be fixed in suitable orientation, the part that sagging distortion thereby the meeting of extruded product can be taken place holds up predetermined height along the direction opposite with its deformation direction, promptly its distortion is compensated, have the correct geomery that adheres to specification with the extruded product that guarantees final molding, thereby greatly reduce percent defective.
Claims (5)
1. extrusion die, described extrusion die comprises base plate (1) and the panel (2) that interconnects and can form the matched moulds state, the center of described base plate (1) is formed with the skeleton permeate chamber (3) that connects vertically, the center of described panel (2) is formed with the die cavity (4) that connects vertically, described die cavity (4) connects with described skeleton permeate chamber (3), also be formed with glue-feeder (5) on the described extrusion die, described glue-feeder (5) is connected with described die cavity (4), it is characterized in that, the back side of described panel (2) is provided with typing regulating part (11), and described typing regulating part (11) is positioned at the port (12) of extruding of described die cavity and locates.
2. extrusion die according to claim 1 is characterized in that, described typing regulating part (11) is sheet, strip or bar-shaped.
3. extrusion die according to claim 1 and 2 is characterized in that, an end of described typing regulating part (11) is rotatably mounted on the described panel (2).
4. extrusion die according to claim 1, it is characterized in that, described glue-feeder (5) is formed on the sidewall of described base plate (1), and the front of described base plate (1) is formed with runner (6), described glue-feeder (5) is connected with described runner (6), the front of described panel (2) is formed with spew groove (7) around the port (13) of clamp-oning of described die cavity (4), and the end of the runner (6) on the described base plate (1) extends in the zone at spew groove (7) place on the described panel (2).
5. extrusion die according to claim 1 is characterized in that described extrusion die also comprises adapter sleeve, and described adapter sleeve is installed in described glue-feeder (5) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201944824U CN201158134Y (en) | 2007-12-12 | 2007-12-12 | Extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201944824U CN201158134Y (en) | 2007-12-12 | 2007-12-12 | Extrusion mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201158134Y true CN201158134Y (en) | 2008-12-03 |
Family
ID=40108725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201944824U Expired - Lifetime CN201158134Y (en) | 2007-12-12 | 2007-12-12 | Extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201158134Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173361A (en) * | 2011-03-29 | 2011-09-07 | 广州花都通用集团有限公司 | Elevator door sealing rubber strip and manufacturing process thereof |
| CN102672937A (en) * | 2012-05-30 | 2012-09-19 | 长城汽车股份有限公司 | Extrusion die |
-
2007
- 2007-12-12 CN CNU2007201944824U patent/CN201158134Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173361A (en) * | 2011-03-29 | 2011-09-07 | 广州花都通用集团有限公司 | Elevator door sealing rubber strip and manufacturing process thereof |
| CN102672937A (en) * | 2012-05-30 | 2012-09-19 | 长城汽车股份有限公司 | Extrusion die |
| CN102672937B (en) * | 2012-05-30 | 2015-06-03 | 长城汽车股份有限公司 | Extrusion die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081203 |