CN220371929U

CN220371929U - Die sleeve for extruding wide aluminum profile and mounting structure thereof

Info

Publication number: CN220371929U
Application number: CN202321976325.4U
Authority: CN
Inventors: 胡焱
Original assignee: Chinalco Special Aluminum Products Chongqing Co ltd
Current assignee: Chinalco Special Aluminum Products Chongqing Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-01-23
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a die sleeve for extruding a wide aluminum profile and an installation structure thereof, wherein the die sleeve comprises a die sleeve body, a die installation groove with a cylindrical structure is concavely formed on one end face of the die sleeve body, the die installation groove is provided with a die sleeve inlet penetrating to the other end face of the die sleeve body, the cross section of the die sleeve inlet is of a rectangular structure, and the cross section area of the die sleeve inlet gradually decreases towards the direction away from the die installation groove. Through reforming transform the structure of die sleeve, with the design of broad structure on the die sleeve to avoided the extrusion broad width section bar to increase the water conservancy diversion mould that is exclusively used in the broad to the mould in the mould, consequently the mould thickness can be made thinner, promoted the machining efficiency of mould, saved the mould cost, simultaneously, because the mould need not be broad, the intensity of mould has also obtained corresponding improvement, has prolonged the life of mould, and, owing to cancelled the water conservancy diversion mould, both do benefit to the standardized design of mould, also do benefit to the standardized management of mould.

Description

Die sleeve for extruding wide aluminum profile and mounting structure thereof

Technical Field

The utility model relates to the technical field of aluminum profile extrusion equipment, in particular to a die sleeve for extruding a wide aluminum profile and an installation structure thereof.

Background

The die is arranged in the die sleeve, and the die sleeve mainly plays a role in positioning and fixing the die.

Wide profile is generally referred to as an extruded profile having a profile circumscribed circle diameter substantially greater than the diameter of the extrusion barrel. For the wide profile mold, whether a flat mold or a split mold is adopted, a wide structure is required, and the profile molding can be ensured. The widening of the mould means that the diverting aperture (or diverting aperture) is designed in the form of an inlet geometrically similar to the profile and takes the form of a flare (i.e. the inlet increases gradually in the direction of the outlet). If the die is a flat die for extruding wide solid sectional materials, the structure of the die is a guide die, a flat die and a pad, and the inlet of the guide die is widened; if the die is a split die for extruding wide hollow profiles, the die structure is usually a 'diversion die + an upper die + a lower die', and the inlet of the diversion die is also widened.

Therefore, the die structures in the two cases are complex, and special diversion dies are required to be configured, so that the standardized design of the die is not facilitated, and the standardized management of the die is not facilitated. And, because the existence of water conservancy diversion mould not only leads to the whole thickness of mould thicker, and the machining efficiency of mould is lower moreover, and the mould cost is high still, simultaneously because the expansion is gone on the water conservancy diversion mould of mould, leads to great to the intensity influence of mould, and the stability of mould is relatively poor.

Solving the above problems is urgent.

Disclosure of Invention

The utility model provides a die sleeve for extruding a wide aluminum profile and an installation structure thereof, aiming at solving the technical problem that a guide die for expanding is required to be arranged when the wide profile is extruded.

The technical scheme is as follows:

the utility model provides a die sleeve for extruding broad width aluminium alloy, includes the die sleeve body, and the one end terminal surface of this die sleeve body is sunken to be formed with the mould mounting groove that is the cylinder structure, and this mould mounting groove has been seted up and has been run through to the die sleeve entry of die sleeve body other end terminal surface, the cross section of die sleeve entry is rectangular structure, and the cross sectional area of die sleeve entry reduces gradually towards the direction of keeping away from the mould mounting groove.

The die sleeve mounting structure for extruding the wide aluminum profile is characterized in that a die is mounted in the die mounting groove.

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

according to the die sleeve for extruding the wide aluminum profile and the mounting structure thereof, the structure of the die sleeve is modified, and the wide structure is designed on the die sleeve, so that the situation that the die is required to be extruded to be additionally provided with the special diversion die for expanding in the die is avoided, the thickness of the die can be made thinner, the processing efficiency of the die is improved, the die cost is saved, meanwhile, the strength of the die is correspondingly improved due to the fact that the die does not need to be expanded, the stability of the die is facilitated, the service life of the die is prolonged, and the diversion die is omitted, so that the die is not only designed in a standardized manner, but also standardized management of the die is facilitated.

Drawings

FIG. 1 is a cross-sectional view of a die sleeve;

FIG. 2 is a schematic view of the structure of the die sleeve;

FIG. 3 is a cross-sectional view of the die sleeve mated with a flat die;

FIG. 4 is a cross-sectional view of the die sleeve mated with the split die;

fig. 5 is a schematic view of the cooperation of the die sleeve and the split die.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1 and 2, a die sleeve for extruding a wide aluminum profile mainly comprises a die sleeve body 1, wherein in the embodiment, the die sleeve body 1 has a cylindrical structure so as to be convenient to be installed on a die holder. The die sleeve body 1 is provided with a die mounting groove 11 with a cylindrical structure in a recessed mode at one end face, the die mounting groove 11 is provided with a die sleeve inlet 12 penetrating to the other end face of the die sleeve body 1, the cross section of the die sleeve inlet 12 is of a rectangular structure, and the cross section area of the die sleeve inlet 12 is gradually reduced towards the direction away from the die mounting groove 11. The structure of the die sleeve inlet 12 enables the round casting rod to be changed into a flat casting rod at the die sleeve inlet 12, deformed metal is similar to wide-width sectional materials in geometry, conditions are created for uniform metal flow, extrusion dead areas are reduced, and wide-width sectional materials are formed by extrusion through a diversion hole of a diversion die or a diversion hole of a flat die. After the die sleeve inlet 12 is designed to be in a wide-spread structure, the die does not need to be subjected to wide-spread, and the die structure is simpler. At the same time, the die sleeve inlet 12 is designed in a broad manner, so that the effect of a flat extrusion cylinder is achieved.

Therefore, through reforming transform the structure of die sleeve, with die sleeve entry 12 as the broad structure, the design is on the die sleeve, thereby avoided the extrusion broad width section bar to need increase the water conservancy diversion mould that is exclusively used in the broad to the mould in the mould, consequently the mould thickness can be made thinner, the machining efficiency of mould has been promoted, the mould cost has been saved, simultaneously, because the mould does not need the broad, the intensity of mould has also obtained corresponding improvement, more do benefit to the stability of mould, prolonged the life of mould, and, because cancelled the water conservancy diversion mould, both do benefit to the standardized design of mould, also do benefit to the standardized management of mould.

Further, the four corners of the die sleeve inlet 12 are all provided with the round corners 121, so that the metal flows in the die sleeve inlet 12 more smoothly, the occurrence of flow dead zones is avoided, the sufficient feeding of the die is ensured, and the forming quality of the wide die is improved.

Further, four mold positioning pin holes 13 uniformly distributed along the circumferential direction are concavely formed on the groove wall of the groove opening of the mold mounting groove 11, wherein the connecting lines of two mold positioning pin holes 13 oppositely arranged extend in the vertical direction, and the connecting lines of the other two mold positioning pin holes 13 oppositely arranged extend in the horizontal direction. Through the design of the four die positioning pin holes 13, the die can rotate 90 degrees, 180 degrees and 270 degrees in the die mounting groove 11 and can be positioned, so that various choices are provided for the discharging mode of the profile, and the flexibility is greatly improved.

Further, referring to fig. 1 and 2, a lifting dovetail groove 16 extending along the axial direction of the die sleeve body 1 is concavely formed at the middle position of the top of the die sleeve body 1, the groove width of the lifting dovetail groove 16 gradually increases from the notch to the groove bottom, and the die sleeve is conveniently and rapidly lifted by using a special tool through cooperation with the lifting dovetail groove 16.

Meanwhile, a die holder positioning groove 14 extending along the axial direction of the die holder is formed in a concave manner at the middle position of the bottom of the die holder body 1, and the groove width of the die holder positioning groove 14 gradually increases from the groove bottom to the groove opening, so that the die holder and the die holder can be accurately and rapidly positioned.

During extrusion, the end face of one end of the die sleeve body 1 provided with the die sleeve inlet 12 possibly emits scraps, and the scraps need to be simply sheared, but the scraps are very easy to collide with the corners of the end face of the die sleeve body 1 in the falling process of the scissors. Therefore, referring to fig. 1 and 2, the upper part of the end surface of the die sleeve body 1 with the die sleeve inlet 12 is provided with a scissor guiding inclined plane 15, the scissor guiding inclined plane 15 extends obliquely upwards to the outer peripheral surface of the die sleeve body 1, and the scissor guiding inclined plane 15 can guide the falling of the scissors, so that the collision problem of the sharp part and the scissors is avoided.

Further, the clamp of the scissors guiding inclined plane 15 and the vertical plane is preferably 5 degrees, so that a good guiding effect on the falling of the scissors can be achieved, and the structural strength of the die sleeve can be ensured.

Referring to fig. 3 to 5, in the above-mentioned installation structure of the die sleeve for extruding wide aluminum profiles, the die is installed in the die installation groove 11.

The conventional die is in contact with the barrel and is under pressure, in this embodiment the die sleeve is in contact with the barrel. The die is arranged in the die sleeve and only bears the forward pressure from the metal and the friction force between the die sleeve and the metal, and does not bear the pressure generated by contact with the extrusion cylinder, so that the stress state of the die is improved, the service life of the die is prolonged, and the die repairing cost is reduced.

Referring to fig. 3, the die is a flat die, and the flat die comprises a flat die 2 and a die pad 3 which are both matched with the die mounting groove 11, the flat die 2 and the die pad 3 are sequentially arranged in the die mounting groove 11 from inside to outside along the axial direction, and the discharge end of the die sleeve inlet 12 completely covers the feed end of the die hole 21 of the flat die 2, so that the forming quality of the wide solid profile is ensured.

A flat die positioning pin 31 of the flat die is fixed on the outer peripheral surface of the die pad 3, and the flat die positioning pin 31 is embedded into one of the die positioning pin holes 13, so that the accurate positioning of the flat die is ensured.

Referring to fig. 4 and 5, the die is a split die, and the split die comprises an upper die 4 and a lower die 5 which are both matched with the die mounting groove 11, the upper die 4 and the lower die 5 are sequentially mounted in the die mounting groove 11 from inside to outside along the axial direction, and the discharge end of the die sleeve inlet 12 completely covers the feed end of each split hole 41 of the upper die 4, so that the forming quality of the wide hollow profile is ensured.

The split-die positioning pins 51 of the split die are fixed on the outer peripheral surface of the lower die 5, and the split-die positioning pins 51 are embedded into one of the die positioning pin holes 13, so that the accurate positioning of the split die is ensured.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a die sleeve for extruding broad width aluminium alloy, includes die sleeve body (1), and the one end terminal surface of this die sleeve body (1) is sunken to be formed with and is mould mounting groove (11) of cylinder structure, and this mould mounting groove (11) are offered and are run through die sleeve entry (12) to die sleeve body (1) other end terminal surface, its characterized in that: the cross sections of the die sleeve inlets (12) are of rectangular structures, and the cross sections of the die sleeve inlets (12) gradually decrease towards the direction away from the die mounting grooves (11).

2. A die sleeve for extruding a wide aluminum profile as in claim 1, wherein: four die positioning pin holes (13) which are uniformly distributed along the circumferential direction are concavely formed on the groove wall of the groove opening of the die mounting groove (11), wherein the connecting lines of the two die positioning pin holes (13) which are oppositely arranged extend in the vertical direction, and the connecting lines of the other two die positioning pin holes (13) which are oppositely arranged extend in the horizontal direction.

3. A die sleeve for extruding a wide aluminum profile as in claim 1, wherein: the middle position of the top of the die sleeve body (1) is concavely provided with a hoisting dovetail groove (16) extending along the axial direction of the die sleeve body, and the groove width of the hoisting dovetail groove (16) is gradually increased from the notch to the groove bottom.

4. A die sleeve for extruding a wide aluminum profile as in claim 1, wherein: the middle position of the bottom of the die sleeve body (1) is concavely provided with a die holder positioning groove (14) extending along the axial direction of the die sleeve body, and the groove width of the die holder positioning groove (14) gradually increases from the bottom of the groove to the groove opening.

5. A die sleeve for extruding a wide aluminum profile as in claim 1, wherein: the upper part of one end face of the die sleeve body (1) provided with the die sleeve inlet (12) is provided with a scissors guiding inclined plane (15), and the scissors guiding inclined plane (15) obliquely extends upwards to the outer peripheral surface of the die sleeve body (1).

6. A die sleeve for extruding a wide aluminum profile as in claim 1, wherein: rounded corners (121) are formed at four corners of the die sleeve inlet (12).

7. A mounting structure of a die sleeve for extruding a wide aluminum profile as claimed in any one of claims 1 to 6, characterized in that: a die is mounted in the die mounting groove (11).

8. The mounting structure of a die sleeve for extruding a wide aluminum profile as recited in claim 7, wherein: the die comprises a flat die (2) and a die pad (3) which are matched with a die mounting groove (11), the flat die (2) and the die pad (3) are sequentially arranged in the die mounting groove (11) from inside to outside along the axial direction, and the discharge end of the die sleeve inlet (12) completely covers the feed end of a die hole (21) of the flat die (2).

9. The mounting structure of a die sleeve for extruding a wide aluminum profile as recited in claim 7, wherein: the die comprises an upper die (4) and a lower die (5) which are matched with the die mounting groove (11), the upper die (4) and the lower die (5) are sequentially arranged in the die mounting groove (11) from inside to outside along the axial direction, and the discharge end of the die sleeve inlet (12) completely covers the feed end of each diversion hole (41) of the upper die (4).