CN215203403U - Variable cross-section extrusion die - Google Patents
Variable cross-section extrusion die Download PDFInfo
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- CN215203403U CN215203403U CN202121371690.3U CN202121371690U CN215203403U CN 215203403 U CN215203403 U CN 215203403U CN 202121371690 U CN202121371690 U CN 202121371690U CN 215203403 U CN215203403 U CN 215203403U
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Abstract
The utility model relates to a variable cross-section extrusion die, which comprises a bottom die plate, a middle die plate and a die, wherein the bottom die plate is provided with a first extrusion material introducing port and a core material introducing port; a second extrusion material inlet and a core material co-extrusion molding port are formed in the middle template, a third extrusion material inlet and a co-extrusion molding outlet are formed in one surface, facing the middle template, of the neck mold, and a pressure stabilizing assembly and a variable cross-section assembly are mounted on one side, away from the middle template, of the neck mold; the voltage stabilizing assembly comprises a voltage stabilizing cylinder and a voltage stabilizing guide sliding plate; the variable cross-section assembly comprises a variable cross-section electric cylinder and a variable cross-section guide sliding plate, the variable cross-section electric cylinder drives the variable cross-section guide sliding plate to perform reciprocating sliding motion on the finished product outlet, a recess is formed in one side, facing the finished product outlet, of the variable cross-section guide sliding plate, and a variable cross-section stop block is correspondingly arranged in the recess.
Description
Technical Field
The utility model belongs to the technical field of the extrusion die technique and specifically relates to a variable cross section extrusion tooling.
Background
For a variable-section product, the traditional process is usually realized by adopting an extrusion molding and blanking process, and during production, the sectional area of the product is firstly calculated, the maximum section in the variable section of the part is determined, and a die is arranged, so that the extrusion processing is carried out. And after the machining is finished, punching the part to remove redundant materials, thereby obtaining a qualified product.
Above-mentioned this kind of traditional extrusion process, material waste is more during extrusion, and the suitability of mould is not wide, especially in dashing and lacks the process, and different dashing and lacking the shape and need correspond different moulds, and economic cost on the mould drops into highly.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art, provides a variable cross-section extrusion die with a reasonable structure, and compared with the traditional extrusion process, the variable cross-section extrusion die reduces the punching process, thereby reducing the waste of extrusion materials and avoiding the investment of punching the die in the later period.
The utility model discloses the technical scheme who adopts as follows:
a variable cross-section extrusion die comprises a bottom die plate, a middle die plate and a mouth die,
a first extrusion material introducing port and a core material introducing port are formed in the bottom die plate; the core material introducing port is positioned in the center of the bottom die plate, the first extruding material introducing ports are symmetrically arranged by taking the core material introducing port as a reference, and the number of the first extruding material introducing ports is four, so that at least three extruding materials are introduced;
the middle template is provided with a second extrusion material inlet and a core material co-extrusion molding port, the second extrusion material inlet is symmetrically arranged by taking the core material co-extrusion molding port as a reference, two second extrusion material inlets are arranged for introducing two extrusion materials, the two extrusion materials belong to the range of the extrusion materials introduced by the first extrusion material inlet,
a third extruded material inlet and a co-extrusion forming outlet are arranged on one surface of the neck ring die facing the middle die plate, and a finished product outlet is arranged on the other surface of the neck ring die corresponding to the co-extrusion forming outlet; the third extrusion material inlet is used for introducing two extrusion materials which are the same as the materials introduced by the second extrusion material inlet,
one side of the die plate, which is far away from the middle die plate, is provided with a pressure stabilizing assembly and a variable cross-section assembly; the pressure stabilizing assembly comprises a pressure stabilizing cylinder and a pressure stabilizing guide sliding plate, and the pressure stabilizing cylinder drives the pressure stabilizing guide sliding plate to reciprocate on the die pressure stabilizing hole so as to shield and open the die pressure stabilizing hole; the variable cross-section assembly comprises a variable cross-section electric cylinder and a variable cross-section guide sliding plate, and the variable cross-section electric cylinder drives the variable cross-section guide sliding plate to perform reciprocating sliding motion on a finished product outlet.
And a recess is formed in one side of the variable cross-section guide sliding plate facing the finished product outlet, a variable cross-section stop block is correspondingly arranged in the recess, and a gap for discharging waste materials is reserved between the variable cross-section stop block and the inner wall of the recess.
One side of the variable cross-section stop block facing the finished product outlet is set to be in an inward concave arc shape, and the part of the finished product outlet, of which the cross-section size needs to be changed, corresponds to the midpoint of the inward concave arc.
The pressure stabilizing guide sliding plate is arranged in a protruding mode towards one side of a finished product outlet, and a through hole corresponding to a pressure stabilizing hole of the die is formed in the protruding portion.
The first extrusion material inlet is provided with two first extrusion material inlets on two sides of the core material inlet, and the two first extrusion material inlets close to the core material inlet are used for introducing the same extrusion material; two of the inlets facing away from the core material are used for introducing two extrusion materials.
The kind of the extrusion material introduced into the second extrusion material introduction port is the same as the kind of the extrusion material introduced into two of the first extrusion material introduction ports which are apart from the core material introduction port.
The extrusion materials introduced from the two first extrusion material inlets apart from the core material inlet are extruded from the core material co-extrusion molding port together with the core material.
The extrusion material introduced from the second extrusion material inlet port is extruded from the coextrusion outlet together with the core material.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure and convenient operation, and can adjust the area of the finished product outlet by adjusting the relative position between the variable cross-section stop block in the variable cross-section component and the finished product outlet in the extrusion process by adding the variable cross-section component on the traditional extruder head, thereby realizing the change of the sectional area of the extruded finished product on the basis of omitting a later-stage punching die; the size of the cross section is changed, and meanwhile, redundant waste materials can be discharged from a gap between the variable cross section stop block and the variable cross section guide sliding plate in time.
The utility model is characterized in that:
three different materials are gradually added from the leading-in ports of the three templates by using the bottom template, the middle template and the neck mold, and the surface of the core material is sequentially coated with coating layers with gradually increased material types in the process of gradually adding the materials, so that the aim of mixing and coating multiple materials is fulfilled. The final product has three mixed material coating layers and a variable cross-section structure, and the mixing preparation and the subsequent punching process of the materials are omitted.
The utility model discloses in, the size of finished product export is adjusted through the motion of the servo electric jar of second and second direction slide to the variable cross section subassembly to realize the adjustment of finished product cross-section size.
The utility model discloses in through steady voltage subassembly cooperation die cavity pressure sensor, in time monitor pressure reduces the potential safety hazard.
Drawings
Fig. 1 is a schematic cross-sectional view of the extruded product of the present invention.
Fig. 2 is a top view of the extruded product of the present invention.
Fig. 3 is a top view of the extrusion mold of the present invention.
Fig. 4 is an enlarged view of a portion a of fig. 3.
Fig. 5 is a schematic structural diagram of the variable cross-section stopper according to the present invention.
Fig. 6 is a front view of the extrusion die of the present invention.
Fig. 7 is a schematic structural view of the bottom form of the present invention.
Fig. 8 is a schematic diagram of the middle template structure of the present invention.
Fig. 9 is a schematic view of the die of the present invention.
Wherein: 1. a bottom template; 2. a middle template; 3. a neck ring mold; 4. a voltage stabilizing assembly; 5. a variable cross-section assembly; 6. a cavity pressure sensor; 7. an LC2598-1 material molding part; 8. b2142 a material molding part; 9. a CA70DW-1 material molding part; 10. a copper wire; 11. a die positioning pin;
101. a first extrusion material introduction port; 102. a core material introducing port;
201. a second extrusion material introduction port; 202. co-extruding a core material to form a port;
301. a third extrusion material introduction port; 302. a co-extrusion molding outlet; 303. a finished product outlet;
401. a voltage stabilizing cylinder; 402. a pressure stabilizing guide sliding plate; 403. a pressure stabilizing valve;
501. a variable cross-section servo electric cylinder; 502. a variable cross-section guide sliding plate; 503. variable cross-section stop block.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 9, the variable cross-section extrusion die of the present embodiment includes a bottom die plate 1, an intermediate die plate 2 and a die 3,
the bottom die plate 1 is provided with a first extruding material introducing port 101 and a core material introducing port 102; the core material introducing port 102 is positioned at the center of the bottom die plate 1, the first extruding material introducing ports 101 are symmetrically arranged by taking the core material introducing port 102 as a reference, and four first extruding material introducing ports 101 are arranged for introducing at least three extruding materials;
the middle template 2 is provided with a second extruding material inlet 201 and a core material co-extrusion molding port 202, the second extruding material inlet 201 is symmetrically arranged by taking the core material co-extrusion molding port 202 as a reference, two second extruding material inlets 201 are arranged for introducing two extruding materials, the two extruding materials belong to the extruding material range introduced by the first extruding material inlet 101,
a third extrusion material inlet 301 and a co-extrusion forming outlet 302 are arranged on one surface of the neck ring mold 3 facing the middle template 2, and a finished product outlet 303 is arranged on the other surface of the neck ring mold 3 corresponding to the co-extrusion forming outlet 302; the third extrusion material introduction port 301 is used to introduce two extrusion materials, which are the same as the materials introduced by the second extrusion material introduction port 201,
a pressure stabilizing component 4 and a variable cross-section component 5 are arranged on one side of the neck ring mold 3, which is opposite to the middle mold plate 2; the pressure stabilizing assembly 4 comprises a pressure stabilizing cylinder 401 and a pressure stabilizing guide sliding plate 402, wherein the pressure stabilizing cylinder 401 drives the pressure stabilizing guide sliding plate 402 to reciprocate on the pressure stabilizing hole of the die, so that the pressure stabilizing hole of the die is shielded and opened; the variable cross-section assembly 5 comprises a variable cross-section electric cylinder and a variable cross-section guide sliding plate 502, wherein the variable cross-section electric cylinder drives the variable cross-section guide sliding plate 502 to perform reciprocating sliding motion on the finished product outlet 303.
A recess is arranged on one side of the variable cross-section guide sliding plate 502 facing the finished product outlet 303, a variable cross-section stop 503 is correspondingly arranged in the recess, and a gap for discharging waste materials is reserved between the variable cross-section stop 503 and the inner wall of the recess.
The side of the variable cross-section stopper 503 facing the product outlet 303 is configured as an inward concave arc, and the portion of the product outlet 303, which requires a change in cross-sectional dimension, corresponds to the midpoint of the inward concave arc.
The pressure stabilizing guide sliding plate 402 protrudes towards one side of the finished product outlet 303, and a through hole corresponding to a pressure stabilizing hole of the die is formed in the protruding part.
Two first extrusion material inlets 101 are provided on both sides of the core material inlet 102, and two inlets close to the core material inlet 102 are provided for introducing the same extrusion material; two away from the core material introduction port 102 are used to introduce two extrusion materials.
The kind of the extruding material introduced into the second extruding material introducing port 201 is the same as the kind of the extruding material introduced into the two extruding material introducing ports of the first extruding material introducing port 101 which are apart from the core material introducing port 102.
The extrusion material introduced through the two first extrusion material introduction ports 101 apart from the core material introduction port 102 is extruded from the core material co-extrusion molding port 202 together with the core material.
The extrusion material introduced through the second extrusion material introduction port 201 is extruded from the co-extrusion outlet 302 together with the core material.
The specific structure and working process of the embodiment are as follows:
the utility model discloses a concrete structure and working process as follows:
as shown in fig. 1 and 2, the finished product extruded by the extrusion die of the present invention uses the copper wire 10 as the center, and wraps the extruded material around, as shown in fig. 1, the three extruded materials are respectively LC2598-1 material, B2142 material, and CA70DW-1 material, and are respectively used for molding the LC2598-1 material molding part 7, B2142 material molding part 8, and CA70DW-1 material molding part 9. Wherein, the LC2598-1 material forming part 7 is a part which needs to change the cross-sectional dimension, and referring to fig. 2, the LC2598-1 material forming part 7 is wavy, which requires the first guide slide plate in fig. 3 to reciprocate, controls the dimension of the forming outlet, and achieves the purpose of changing the cross-section.
As shown in fig. 3, which is a top view of the extrusion die, when the extrusion die is viewed from the top, only the neck mold 3 can be seen, the neck mold 3 is a rectangular plate with four corners having a chamfered structure, a finished product outlet 303 is located in the middle of the rectangular plate, and the pressure stabilizing assembly 4 and the variable cross-section assembly 5 are located on two sides of the finished product outlet 303.
The pressure stabilizing component 4 comprises a second servo electric cylinder and a second guide sliding plate pushed by the second servo electric cylinder, and the second guide sliding plate has two states in the reciprocating motion process, namely covers the die pressure stabilizing hole on the neck die 3 and is communicated with the die pressure stabilizing hole on the neck die 3, so that the purpose of stabilizing pressure is realized.
Variable cross section subassembly 5 includes first servo electric cylinder, the first direction slide that is driven by first servo electric cylinder, first direction slide is equipped with variable cross section dog 503 towards one side of second direction slide, refer to fig. 4, be equipped with the logical groove of an indent on the lateral wall of first direction slide, set up variable cross section dog 503 in the groove, theoretically, only need to have a baffle that can export reciprocating motion at the shaping and can realize the variable cross section purpose, in this embodiment, as shown in fig. 5, according to the actual shape of finished product export 303, set up a variable cross section dog 503 of laminating mutually with the finished product structure, be equivalent to optimizing on conventional baffle basis, structure after the optimization is in extrusion process, can ensure that the edge profile precision of extruding the finished product is higher, thereby improve the finished product quality.
As shown in fig. 6, which is a front view of the extrusion mold, the bottom mold plate 1, the middle mold plate 2, and the neck mold 3 are stacked and connected by screws or pins, and a cavity pressure sensor 6 is disposed on the neck mold 3 for measuring the cavity pressure, so as to assist the movement of the pressure stabilizing assembly 4 and stabilize the pressure in time.
Referring to fig. 7, 8 and 9, the structures of the bottom die plate 1, the middle die plate 2 and the die 3 in the present embodiment are shown. The mouthpiece 3 of fig. 9 is a structure facing the side of the center die plate 2, and the structure of the mouthpiece 3 on which the pressure stabilizing assembly 4 is mounted is as shown in fig. 3.
In fig. 7, the core material inlet 102 is located at the center, and the copper wire 10 is used as the core material in this embodiment. Two first extrusion material inlets 101 are provided on both upper and lower sides of the core material inlet 102, and according to the orientation in fig. 7, the uppermost first extrusion material inlet 101 is used for introducing the LC2598-1 material, the lower first extrusion material inlet 101 is used for introducing the B2142 material, the first extrusion material inlet 101 below the core material inlet 102 is used for introducing the B2142 material, and the lowermost first extrusion material inlet 101 is used for introducing the CA70DW-1 material.
As shown in FIG. 8, a core material co-extrusion molding opening 202 is arranged in the middle, the copper wire 10 is wrapped by the B2142 material on the bottom template 1 and then extruded out of the core material co-extrusion molding opening 202, and the second extrusion material inlet openings 201 on the upper side and the lower side of the core material co-extrusion molding opening 202 are used for respectively introducing the LC2598-1 material and the CA70DW-1 material.
As shown in fig. 9, the structure of the neck ring mold 3 is shown, the third extruding material introducing port 301 on the neck ring mold 3 is different from the through-hole introducing ports on the bottom mold plate 1 and the middle mold plate 2, the third extruding material introducing port 301 has a flow channel structure, which tends to be triangular, and the top corners of the flow channel structure are both rounded, two third extruding material introducing ports 301 are provided, the upper and lower flow channels are used for introducing the LC2598-1 material and the CA70DW-1 material, respectively, and one sides of the two flow channels, which are close to the co-extrusion forming outlet 302, are arranged in an offset curve with the profile of the co-extrusion forming outlet 302 and are communicated with the co-extrusion forming outlet 302, so that the two materials are extruded from the finished product outlet 303 on the front surface of the neck ring mold 3 plate after flowing into the co-extrusion forming outlet 302.
The utility model discloses in be used for installing die block board 1, well template 2 and bush 3's connecting piece adopt M8 screw, during the die carrier was packed into to the extrusion tooling for the M10 screw that the assembly was accomplished, steady voltage subassembly 4 and variable cross section subassembly 5 adopted M6 screw assembly, obtained the mould finished product.
When the variable cross-section block 503 moves to the LC2598-1 material forming part 7, the left side part of the LC2598-1 material forming part 7 in the drawing 5 is cut off by the variable cross-section block 503, the extruded part is strip-shaped waste, the right side part is connected with a finished product, in the reciprocating motion process of the first guide sliding plate, the LC2598-1 material forming part 7 forms a wavy finished product, and redundant waste is timely discharged from the left side of the variable cross-section block 503.
In the extrusion process, the cavity pressure sensor 6 always keeps a detection state, once the cavity pressure changes, especially, the pressure is increased, the pressure stabilizing component 4 starts working, and the second guide sliding plate moves to the pressure stabilizing hole of the die to be communicated with the outside, so that the pressure stabilization is realized.
The utility model discloses subsequent blanking process can be left out to at the in-process of change cross-section size, the waste material is in time discharged, is difficult for piling up.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (8)
1. A variable cross-section extrusion die is characterized in that: comprises a bottom template (1), a middle template (2) and a mouth mold (3),
the bottom die plate (1) is provided with a first extruding material introducing port (101) and a core material introducing port (102); the core material introducing ports (102) are positioned at the central position of the bottom die plate (1), the first extruding material introducing ports (101) are symmetrically arranged by taking the core material introducing ports (102) as a reference, and four first extruding material introducing ports (101) are arranged for introducing at least three extruding materials;
the middle template (2) is provided with a second extrusion material inlet (201) and a core material co-extrusion molding port (202), the second extrusion material inlet (201) is symmetrically arranged by taking the core material co-extrusion molding port (202) as a reference, two second extrusion material inlets (201) are arranged for introducing two extrusion materials, and the two extrusion materials belong to the range of the extrusion materials introduced by the first extrusion material inlet (101),
a third extrusion material inlet (301) and a co-extrusion forming outlet (302) are arranged on one surface of the neck ring mold (3) facing the middle template (2), and a finished product outlet (303) is arranged on the other surface of the neck ring mold (3) corresponding to the co-extrusion forming outlet (302); the third extrusion material inlet (301) is used for introducing two extrusion materials which are the same as the materials introduced by the second extrusion material inlet (201),
a pressure stabilizing assembly (4) and a variable cross-section assembly (5) are arranged on one side of the mouth mold (3) plate, which is away from the middle template (2); the pressure stabilizing assembly (4) comprises a pressure stabilizing cylinder (401) and a pressure stabilizing guide sliding plate (402), wherein the pressure stabilizing cylinder (401) drives the pressure stabilizing guide sliding plate (402) to reciprocate on the die pressure stabilizing hole, so that the die pressure stabilizing hole is shielded and opened; the variable cross-section assembly (5) comprises a variable cross-section electric cylinder and a variable cross-section guide sliding plate (502), wherein the variable cross-section electric cylinder drives the variable cross-section guide sliding plate (502) to do reciprocating sliding motion on the finished product outlet (303).
2. A variable cross-section extrusion die as in claim 1, wherein: a recess is formed in one side, facing the finished product outlet (303), of the variable cross-section guide sliding plate (502), a variable cross-section stop block (503) is correspondingly arranged in the recess, and a gap for discharging waste materials is reserved between the variable cross-section stop block (503) and the inner wall of the recess.
3. A variable cross-section extrusion die as claimed in claim 2, wherein: one side of the variable cross-section stop block (503) facing the finished product outlet (303) is set to be an inward concave arc, and the part of the finished product outlet (303) needing to change the cross-section size corresponds to the midpoint of the inward concave arc.
4. A variable cross-section extrusion die as in claim 1, wherein: the pressure stabilizing guide sliding plate (402) is arranged towards one side of the finished product outlet (303) in a protruding mode, and a through hole corresponding to a pressure stabilizing hole of the die is formed in the protruding portion.
5. A variable cross-section extrusion die as in claim 1, wherein: the first extruding material inlet (101) is provided with two on both sides of the core material inlet (102), and two adjacent to the core material inlet (102) are used for introducing the same extruding material; two of the two inlets (102) facing away from the core material inlet are used for introducing two extrusion materials.
6. A variable cross-section extrusion die as claimed in claim 5, wherein: the kind of the extrusion material introduced into the second extrusion material introduction port (201) is the same as the kind of the extrusion material introduced into two of the first extrusion material introduction ports (101) that are apart from the core material introduction port (102).
7. A variable cross-section extrusion die as claimed in claim 5, wherein: the extrusion materials introduced from the two first extrusion material introduction ports (101) which are separated from the core material introduction port (102) are extruded from the core material co-extrusion molding port (202) together with the core material.
8. A variable cross-section extrusion die as claimed in claim 6, wherein: the extrusion material introduced from the second extrusion material introduction port (201) is extruded from the coextrusion outlet (302) together with the core material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121371690.3U CN215203403U (en) | 2021-06-18 | 2021-06-18 | Variable cross-section extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121371690.3U CN215203403U (en) | 2021-06-18 | 2021-06-18 | Variable cross-section extrusion die |
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| CN215203403U true CN215203403U (en) | 2021-12-17 |
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| CN202121371690.3U Active CN215203403U (en) | 2021-06-18 | 2021-06-18 | Variable cross-section extrusion die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116653259A (en) * | 2023-07-16 | 2023-08-29 | 扬州华通橡塑有限公司 | Sealing member preforming device |
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2021
- 2021-06-18 CN CN202121371690.3U patent/CN215203403U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116653259A (en) * | 2023-07-16 | 2023-08-29 | 扬州华通橡塑有限公司 | Sealing member preforming device |
| CN116653259B (en) * | 2023-07-16 | 2023-10-20 | 扬州华通橡塑有限公司 | Sealing member preforming device |
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