CN212551075U

CN212551075U - Large-scale aluminium extruder tool and die structure

Info

Publication number: CN212551075U
Application number: CN202021128489.8U
Authority: CN
Inventors: 胡焱
Original assignee: Sapa Chalco Aluminum Products Co ltd
Current assignee: Chinalco Special Aluminum Products (Chongqing) Co.,Ltd.
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-02-19
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a large-scale aluminium extrusion machine worker mould structure, including die sleeve, support ring and support ring cover, the die sleeve is close to the interior die cavity that is formed with the holding extrusion die of the one end terminal surface indent of support ring, the support ring cover is close to the interior support ring holding chamber that is formed with and supports ring looks adaptation of one end terminal surface indent of die sleeve, during support ring embedding support ring holding chamber, the support ring all is close to the one end terminal surface butt of support ring cover with the die sleeve with the support ring cover one end terminal surface that the mold sleeve is close to. The large-scale aluminium extrusion machine tool and die structure adopting the technical scheme has the advantages of novel structure and ingenious design, saves one third of die change time compared with the prior art, and has the advantages that the whole structure is more compact, the assembly gap is reduced, the tool and die has small play in the extrusion direction in the extrusion process, and the dimension stability of the extruded section is higher.

Description

Large-scale aluminium extruder tool and die structure

Technical Field

The utility model relates to an extrusion equipment technical field, concretely relates to large-scale aluminium extruder worker mould structure.

Background

Currently, the tool and die of a large aluminum extrusion press generally comprises a die sleeve, a first support ring and a second support ring which are arranged side by side, wherein the die sleeve is used for installing the extrusion die, the first support ring is used for positioning the extrusion die, and the second support ring is used for positioning the first support ring. After the extrusion of the current section bar is finished and before the next set of extrusion die is replaced, the hydraulic cylinder below the die holder can jack the die sleeve, so that the residual length behind the supporting ring can be cut, the residual part of the section bar is separated from the die sleeve, and the rapid die replacement is realized.

Therefore, the die sleeve, the first support ring and the second support ring need to be hoisted or lifted for three times before and after the section bar is extruded, and the assembling and disassembling time of the tool and the die is longer. Moreover, the more the structure of the tool and die split is, the larger the assembly gap and the error are, the supporting effect on the extrusion die is influenced, and the size stability of the extruded section is further influenced.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem above, the utility model provides a large-scale aluminium extruder worker mould structure.

The technical scheme is as follows:

the large-scale aluminum extrusion machine tool and die structure is characterized by comprising a die sleeve, a support ring and a support ring sleeve, wherein a die cavity for accommodating an extrusion die is formed in the end surface of one end, close to the support ring, of the die sleeve, a support ring accommodating cavity matched with the support ring is formed in the end surface of one end, close to the die sleeve, of the support ring sleeve, the support ring is embedded into the support ring accommodating cavity, and the end surfaces, close to the die sleeve, of the support ring and the support ring sleeve are abutted to the end surface, close to the support ring sleeve, of one end of the die sleeve;

the die sleeve is far away from the one end of die cavity import and has the die sleeve feed inlet, and the cross-sectional size of this die sleeve feed inlet perpendicular to its axis is less than the cross-sectional size of die cavity perpendicular to its axis, the support ring has the support ring section bar via hole that the axial is link up, the support ring cover is kept away from the one end terminal surface of die sleeve and is had the export of ring cover section bar, and the cross-sectional size of this ring cover section bar export perpendicular to its axis is less than the cross-sectional size of support ring holding chamber perpendicular to its axis, die sleeve feed inlet, die cavity, support ring section bar via hole and the export of ring cover section bar.

The structure more than adopting, support ring embedding support ring cover, unite two into one, make the whole two parts that divide into of worker's mould, partly be the die sleeve (extrusion die installs in the die sleeve), another part is support ring and support ring cover to after current section bar extrusion is accomplished, before changing next set of extrusion die, the pneumatic cylinder of die holder below can jack up the die sleeve, can cut the remaining length in support ring rear, thereby make the remaining part of section bar break away from with the die sleeve, realize quick retooling. And, only need to be hoisted or hoisted away from the worker's mould twice (once hang the die sleeve, another time hangs support ring and support ring sleeve) before and after the section bar is extruded, saved one third die change time for prior art, and, because overall structure is compacter, reduced the assembly gap, the little play of worker's mould along extrusion direction (axial) in the extrusion process, make the dimensional stability of extruding the section bar higher.

Preferably, the method comprises the following steps: the die sleeve is characterized in that an axially extending die sleeve dovetail groove is formed in a recessed mode in the outer peripheral surface of the die sleeve and is located at the top of the die sleeve, an axially extending ring sleeve dovetail groove is formed in a recessed mode in the outer peripheral surface of the supporting ring sleeve and is located at the top of the supporting ring sleeve. By adopting the structure, the quick connection with the lifting appliance can be realized, the lifting speed is improved, and the quick die change is realized.

Preferably, the method comprises the following steps: the cross section shapes and sizes of the die sleeve dovetail groove and the ring sleeve dovetail groove are the same and are communicated with each other. By adopting the structure, the universality of the lifting appliance is ensured.

Preferably, the method comprises the following steps: and a plurality of abdicating key grooves are distributed on the cavity wall of the die cavity at the inlet along the circumferential direction. By adopting the structure, the positioning pin of the extrusion die is abducted; when the extrusion die is installed in the die cavity, each positioning pin is respectively positioned in the corresponding yielding key groove.

Preferably, the method comprises the following steps: the outer peripheral surface of one end of the die sleeve, which is far away from the supporting ring sleeve, is reduced in diameter to form a limiting step. The structure is adopted, so that the position can be limited by matching with the horseshoe ring of the die holder.

Preferably, the method comprises the following steps: the size of the section of the ring sleeve section bar outlet perpendicular to the axis is larger than that of the section of the support ring section bar through hole perpendicular to the axis. By adopting the structure, the smooth passing of the section bar is ensured.

Compared with the prior art, the beneficial effects of the utility model are that:

the large-scale aluminium extrusion machine tool and die structure adopting the technical scheme has the advantages of novel structure and ingenious design, saves one third of die change time compared with the prior art, and has the advantages that the whole structure is more compact, the assembly clearance is reduced, the tool and die has small play in the extrusion direction (axial direction) in the extrusion process, and the dimension stability of the extruded section is higher.

Drawings

FIG. 1 is a schematic view of the present invention disposed on a mold base;

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

fig. 3 is a schematic view of fig. 2 with the extrusion die and support ring removed.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1-3, a die structure of a large aluminum extrusion press mainly includes a die sleeve 1, a support ring 2 and a support ring sleeve 3. The die sleeve 1 is used for accommodating an extrusion die 4, and the support ring 2 is embedded in the support ring sleeve 3 and can be abutted on the die sleeve 1 through the support ring sleeve 3 so as to reliably limit the extrusion die 4 in the die sleeve 1.

Referring to fig. 2 and fig. 3, a cavity 1a for accommodating the extrusion die 4 is formed in the end surface of the die sleeve 1 close to the end surface of the support ring 2, that is, the cavity 1a is adapted to the extrusion die 4. And, a plurality of abdicating keyways 1a1 are distributed along the circumference at the inlet of the die cavity 1a, and when the extrusion die 4 is embedded into the die cavity 1a, the positioning pins 4b of the extrusion die 4 are respectively positioned in the corresponding abdicating keyways 1a 1. The end of the die case 1 remote from the entrance of the die cavity 1a has a die case feed opening 1b for feeding (aluminum ingot or aluminum bar) the extrusion die 4 to the extrusion die 4, and the size of the cross section of the die case feed opening 1b perpendicular to the axis thereof is smaller than the size of the cross section of the die cavity 1a perpendicular to the axis thereof to avoid reliably positioning the extrusion die 4.

Support ring cover 3 is close to the one end terminal surface indent of die sleeve 1 and is formed with the support ring holding chamber 3a that suits with support ring 2, support ring 2 imbeds in the support ring holding chamber 3a, support ring 2 and support ring cover 3 are close to the one end terminal surface butt that the one end terminal surface of die sleeve 1 all is close to support ring cover 3 with die sleeve 1, thereby make support ring 2 can inject extrusion tooling 4 reliably in die cavity 1a, the assembly gap has been reduced, the play of extrusion in-process worker's mould along extrusion direction (axial) is little, the dimensional stability who makes extruded section bar is higher.

Referring to fig. 1-3, the support ring 2 has a support ring profile through hole 2a passing through axially, an end surface of the support ring sleeve 3 away from the die sleeve 1 has a ring sleeve profile outlet 3b, a cross-sectional dimension of the ring sleeve profile outlet 3b perpendicular to an axis thereof is smaller than a cross-sectional dimension of the support ring receiving cavity 3a perpendicular to the axis thereof, and a cross-sectional dimension of the ring sleeve profile outlet 3b perpendicular to the axis thereof is larger than a cross-sectional dimension of the support ring profile through hole 2a perpendicular to the axis thereof. The die sleeve feed inlet 1b, the die cavity 1a, the support ring section bar through hole 2a and the ring sleeve section bar outlet 3b are sequentially communicated and coaxially arranged, so that the die sleeve feed inlet 1b, the support ring section bar through hole 2a and the ring sleeve section bar outlet 3b are all coaxial with the flow channel 4a of the extrusion die 4. Moreover, the ring sleeve section outlet 3b of the support ring sleeve 3 is similar to the outlet of the front beam of the press in geometry, so that the support effect is better.

Referring to fig. 1 and 2, an axially extending mold sleeve dovetail groove 1c is recessed in the outer circumferential surface of the mold sleeve 1, the mold sleeve dovetail groove 1c is located at the top of the mold sleeve 1, and an axially extending ring sleeve dovetail groove 3c is recessed in the outer circumferential surface of the support ring sleeve 3, and the ring sleeve dovetail groove 3c is located at the top of the support ring sleeve 3. The cross-sectional shapes and sizes of the die sleeve dovetail groove 1c and the ring sleeve dovetail groove 3c are the same and are communicated with each other. Thereby can realize high-speed joint with the hoist, improve hoist and mount speed, realize quick retooling.

Referring to fig. 1-3, the outer peripheral surface of one end of the die sleeve 1 away from the supporting ring sleeve 3 is reduced in diameter to form a limiting step 1 d. The limiting step 1d is matched with a horseshoe ring 5a of the die holder 5, and when the die sleeve 1, the support ring 2 and the support ring sleeve 3 are arranged on the die holder 5, the limiting step 1d of the die sleeve 1 is positioned on the horseshoe ring 5a, so that the die sleeve 1 and the whole tool and die can be well positioned.

Referring to fig. 2 and 3, the support ring 2 is embedded in the support ring sleeve 3 and is integrated into a whole, so that the whole tool and die is divided into two parts, one part is the die sleeve 1 (the extrusion die 4 is installed in the die sleeve 1), and the other part is the support ring 2 and the support ring sleeve 3, so that after the current section bar is extruded and before the next extrusion die is replaced, the hydraulic cylinder 6 below the die holder 5 can jack up the die sleeve 1, the residual length behind the support ring can be cut, the residual section bar is separated from the die sleeve, and the rapid die replacement is realized. And, just need to hoist or hang away from the worker's mould twice (once hang die sleeve 1, another time hang support ring 2 and support ring sleeve 3) before and after the section bar extrusion, saved one third die change time for prior art.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a large-scale aluminium extrusion machine worker mould structure which characterized in that: the die comprises a die sleeve (1), a support ring (2) and a support ring sleeve (3), wherein a die cavity (1a) for accommodating an extrusion die (4) is formed in the end face of one end, close to the support ring (2), of the die sleeve (1), a support ring accommodating cavity (3a) matched with the support ring (2) is formed in the end face of one end, close to the die sleeve (1), of the support ring sleeve (3), the support ring (2) is embedded into the support ring accommodating cavity (3a), and the end faces of one ends, close to the die sleeve (1), of the support ring (2) and the support ring sleeve (3) are abutted to the end face of one end, close to the support ring sleeve (3), of the die sleeve (1);

the die sleeve is characterized in that one end, far away from an inlet of the die cavity (1a), of the die sleeve (1) is provided with a die sleeve feed inlet (1b), the cross section size of the die sleeve feed inlet (1b) perpendicular to the axis of the die cavity (1a) is smaller than that of the axis of the die cavity (1a), the support ring (2) is provided with a support ring profile through hole (2a) which is axially communicated, one end face, far away from the die sleeve (1), of the support ring sleeve (3) is provided with a ring sleeve profile outlet (3b), the cross section size of the ring sleeve profile outlet (3b) perpendicular to the axis of the support ring accommodating cavity (3a) is smaller than that of the support ring accommodating cavity (3a) perpendicular to the axis of the support ring profile outlet, and the die sleeve feed inlet (1b), the die cavity (1a), the.

2. The large aluminum extrusion press tooling die structure of claim 1, wherein: the die sleeve is characterized in that a die sleeve dovetail groove (1c) extending axially is formed in a concave mode on the outer peripheral surface of the die sleeve (1), the die sleeve dovetail groove (1c) is located at the top of the die sleeve (1), a ring sleeve dovetail groove (3c) extending axially is formed in a concave mode on the outer peripheral surface of the supporting ring sleeve (3), and the ring sleeve dovetail groove (3c) is located at the top of the supporting ring sleeve (3).

3. The large aluminum extrusion press tooling die structure of claim 2, wherein: the cross section shapes and sizes of the die sleeve dovetail groove (1c) and the ring sleeve dovetail groove (3c) are the same and are communicated with each other.

4. The large aluminum extrusion press tooling die structure of claim 1, wherein: a plurality of abdicating key grooves (1a1) are distributed on the cavity wall of the die cavity (1a) at the inlet along the circumferential direction.

5. The large aluminum extrusion press tooling die structure of claim 1, wherein: the outer peripheral surface of one end of the die sleeve (1) far away from the supporting ring sleeve (3) is reduced in diameter to form a limiting step (1 d).

6. The large aluminum extrusion press tooling die structure of claim 1, wherein: the section size of the ring sleeve section outlet (3b) vertical to the axis is larger than the section size of the support ring section through hole (2a) vertical to the axis.