CN221209418U - Extrusion die sinking machine - Google Patents

Abstract

The utility model relates to the technical field of extrusion die opening, and particularly discloses an extrusion die opening machine, which comprises a supporting mechanism, wherein the supporting mechanism is provided with a limiting mechanism for limiting lifting of an extrusion die and a die opening mechanism which is arranged on the supporting mechanism and used for separating an upper die from a lower die of the extrusion die; the supporting mechanism comprises a placing table which is in a sinking table shape, a support is arranged at the lower end of the placing table, and a bottom plate is fixed at the lower end of the support. According to the utility model, through the arrangement of the limiting mechanism and the die opening mechanism, the lifting assembly moves up and down on the die opening assembly to provide a space for placing the die, then the die is placed at the center position of the top plate of the limiting mechanism, the V-shaped riving knife is aligned with the gaps of the upper die and the lower die, and the V-shaped riving knife is pushed to be inserted into the gaps of the upper die and the lower die to move towards the center direction through the third hydraulic cylinder, so that the stress at the gaps of the die opening is uniform, the die is prevented from being damaged by deflection, the die is simple in integral structure and convenient to operate, and the die is suitable for use of dies with different specifications.

Description

Extrusion die sinking machine

Technical Field

The utility model relates to the technical field of extrusion die opening, in particular to an extrusion die opening machine.

Background

The aluminum extrusion molding (or aluminum extrusion molding) is a plastic processing method for obtaining a part or semi-finished product with a required section shape and size and certain mechanical property by applying strong pressure to an aluminum blank placed in a die cavity (or an extrusion cylinder) to force the aluminum blank to generate directional plastic deformation and extruding the aluminum blank from a die hole of an extrusion die. According to the cross-sectional shape of the aluminum extrusion profile, the corresponding dies are classified into three types: solid mold, semi-hollow mold and hollow mold. The hollow mould consists of an upper mould, a lower mould or a mould pad and a lower mould, and has the most complex structure, easy abrasion and fracture and highest cost. In the process of manufacturing the working die, the die needs to be disassembled after extrusion test and use production are completed, so that the die is maintained.

The traditional method with the widest application of the existing mold opening method is to manually beat by using a hammer head and a mold opening chopper, the labor intensity is high in the mode, the residual alkali liquor in the mold and the broken slag and the like generated by the local deformation of a separation joint between the chopper and the mold during mold opening are easy to cause personal injury, most of the mold opening method is realized by manual operation, the mold opening of the upper mold and the lower mold of the hollow mold still needs to be realized by mechanical equipment by virtue of the hollow mold with the diameter of 420 MM. Or using mold opening equipment, generally adopting a vertical or transverse hydraulic rod to connect 1-2 riving knives, enabling the mold to vertically move transversely between two rollers of the base, adjusting the separation gap position of the riving knives and the mold in a rotating way, and adjusting the gap of the rollers corresponding to different specifications to control the symmetrical center position for mold opening operation; however, in the existing mold opening machine, when the mold opening is uneven and the molds corresponding to different specifications are operated, the positions of the central points of the molds corresponding to the cleavers cannot be guaranteed, and the upper mold and the lower mold of the mold are inclined and misplaced to cause damage to the core head and the working belt of the mold.

Disclosure of utility model

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide an extrusion die opening machine.

The utility model realizes the above purpose through the following technical scheme:

The die opening machine for the extrusion die comprises a supporting mechanism, wherein a limiting mechanism for lifting and limiting the extrusion die and a die opening mechanism which is arranged on the supporting mechanism and used for separating an upper die from a lower die of the extrusion die are arranged on the supporting mechanism; the support mechanism comprises a placing table in a sinking table shape, a support is arranged at the lower end of the placing table, and a bottom plate is fixed at the lower end of the support;

The limiting mechanism comprises a top plate arranged in the placing table sinking table, limiting columns are uniformly distributed on the circumference of the lower end of the top plate, a first hydraulic cylinder is connected to the center position of the limiting columns on the lower side of the top plate, and the fixed end of the first hydraulic cylinder is installed at the bottom of the placing table;

The die opening mechanism comprises a lifting assembly connected to the lower side of the placing table, the lifting assembly is provided with die opening assemblies, and the die opening assemblies are uniformly distributed circumferentially and are at least provided with three positions.

Further set up: the lifting assembly comprises a second hydraulic cylinder fixed at the lower end of the placing table, a connecting ring is arranged at the lower end of the second hydraulic cylinder, and upright posts are uniformly distributed on the connecting ring in a circumferential manner.

Further set up: the die opening assembly comprises an installation seat fixed at the upper end of the upright post, a third hydraulic cylinder is horizontally arranged on the installation seat, a V-shaped riving knife is fixed at the movable end of the third hydraulic cylinder, and the V-shaped riving knife faces to the center position.

Further set up: the placement table is provided with a notch groove which is penetrated by the mounting seat at a position corresponding to the mounting seat, and the third hydraulic cylinder is vertically arranged at two positions.

Further set up: the top plate is in sliding connection with the sinking table of the placing table, and a through hole for the limiting column to pass through is formed in the bottom surface of the placing table.

Further set up: and each V-shaped riving knife is positioned at the same horizontal height.

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

Through stop gear, die sinking mechanism's setting, make lifting unit reciprocate die sinking subassembly, provide the space to placing of mould, then place the roof central point of stop gear with the mould, adjust V type riving knife and upper and lower mould gap alignment, promote V type riving knife to insert in the upper and lower mould gap through the third pneumatic cylinder and remove to central direction, make die sinking gap department atress even, prevent the skew damage mould, overall structure is simple, be convenient for operate, adaptable different specification moulds's use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is an isometric view of an extrusion die ejector according to the present utility model;

FIG. 2 is a schematic view of an extrusion die opening machine according to another view of the present utility model;

FIG. 3 is a schematic diagram of a front view of an extrusion die opening machine according to the present utility model;

FIG. 4 is a schematic view showing a structure of an extrusion die opening machine in an exploded state according to the present utility model;

fig. 5 is a schematic view of the structure of another view of fig. 4.

The reference numerals are explained as follows:

1. A support mechanism; 11. a bottom plate; 12. a bracket; 13. a placement table; 2. a limiting mechanism; 21. a first hydraulic cylinder; 22. a top plate; 23. a limit column; 3. a mold opening mechanism; 31. a second hydraulic cylinder; 32. a connecting ring; 33. a column; 34. a mounting base; 35. a third hydraulic cylinder; 36. v-shaped riving knife.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 devices or elements 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. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 in a specific case.

The utility model is further described below with reference to the accompanying drawings:

As shown in fig. 1-5, an extrusion die opening machine comprises a supporting mechanism 1, wherein a limiting mechanism 2 for limiting the lifting of an extrusion die is arranged on the supporting mechanism 1, and a die opening mechanism 3 for separating an upper die from a lower die of the extrusion die is arranged on the supporting mechanism 1;

in this embodiment: the supporting mechanism 1 comprises a placing table 13 in a sinking table shape, a bracket 12 is arranged at the lower end of the placing table 13, a bottom plate 11 is fixed at the lower end of the bracket 12, and the whole is supported, so that the whole stability is ensured;

In this embodiment: the limiting mechanism 2 comprises a top plate 22 arranged in the sinking platform of the placing platform 13, limiting columns 23 are uniformly distributed on the circumference of the lower end of the top plate 22, a first hydraulic cylinder 21 is connected to the center position of the limiting columns 23, which is positioned below the top plate 22, and the fixed end of the first hydraulic cylinder 21 is arranged at the bottom of the placing platform 13; the roof 22 with deposit platform sliding connection of platform 13, be provided with the through-hole that spacing post 23 passed on the bottom surface of placing the platform 13, promote roof 22 through first pneumatic cylinder 21 and reciprocate, be convenient for carry out high position adjustment to the mould that the upside was placed, spacing post 23 assists roof 22 when going up and down simultaneously, prevents roof 22 slope.

In this embodiment: the mold opening mechanism 3 comprises a lifting assembly connected to the lower side of the placing table 13, wherein the lifting assembly is provided with mold opening assemblies which are uniformly distributed circumferentially and are at least provided with three positions; the lifting assembly comprises a second hydraulic cylinder 31 fixed at the lower end of the placing table 13, a connecting ring 32 is arranged at the lower end of the second hydraulic cylinder 31, upright posts 33 are uniformly distributed on the circumference of the connecting ring 32, and the connecting ring 32, the upright posts 33 and the die opening assembly are integrally pushed to move up and down by the expansion and contraction of the second hydraulic cylinder 31, so that a convenient operation space is provided for taking and placing the die;

The die opening assembly comprises a mounting seat 34 fixed at the upper end of the upright post 33, a third hydraulic cylinder 35 is horizontally arranged on the mounting seat 34, a V-shaped riving knife 36 is fixed at the movable end of the third hydraulic cylinder 35, and the V-shaped riving knife 36 faces to the center position; a notch groove through which the mounting seat 34 passes is formed in the position, corresponding to the mounting seat 34, of the placing table 13, and two parts of the third hydraulic cylinder 35 are vertically arranged; every V-shaped riving knife 36 is located at the same horizontal height, the first hydraulic cylinder 21, the second hydraulic cylinder 31 and the third hydraulic cylinder 35 are connected to a hydraulic control system, oil pressure pipelines of the third hydraulic cylinder 35 are connected to the same split-flow rapid valve, so that the action of the third hydraulic cylinder 35 is synchronous, the V-shaped riving knife 36 is pushed to move through the expansion and contraction of the third hydraulic cylinder 35, the V-shaped riving knife 36 is convenient to insert into an upper die and a lower die of a die, the dies are separated, and stress in the die separation process is uniform.

The working principle and the use flow of the utility model are as follows: the die is lifted and placed on a sinking platform area of the placing platform 13 and placed on the top plate 22, then the connecting ring 32 integrally moves upwards through the contraction of the second hydraulic cylinder 31, the die opening assembly stretches out of the upper side of the placing platform 13, the third hydraulic cylinder 35 stretches out, the V-shaped riving knife 36 pushes the outer wall of the die, the die is positioned at the center of the top plate 22, then the first hydraulic cylinder 21 stretches out and pushes the top plate 22 integrally to move upwards, gaps between the upper die and the lower die are aligned with the V-shaped riving knife 36, the V-shaped riving knife 36 synchronously stretches out under the action of the third hydraulic cylinder 35 and is inserted into the gaps of the die, the die is uniformly stressed, the height of the top plate 22 is reduced after the V-shaped riving knife 36 enters the gaps, the contact surface of the die end surface and the top plate 22 is kept a gap, the die is guaranteed to be horizontally dropped on the top plate 22 after the die is separated, the die is protected, then the separated lower die is lifted away, the third hydraulic cylinder 35 is controlled to retract the V-shaped riving knife 36, the second hydraulic cylinder 31 stretches out to push the connecting ring 32 to integrally drop, and the upper die is lifted off, and the die is separated from the die, and the die is completed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. An extrusion die sinking machine which characterized in that: the die opening mechanism (3) is arranged on the supporting mechanism (1) and used for separating an upper die from a lower die of the extrusion die; the supporting mechanism (1) comprises a placing table (13) in a sinking table shape, a bracket (12) is arranged at the lower end of the placing table (13), and a bottom plate (11) is fixed at the lower end of the bracket (12);

The limiting mechanism (2) comprises a top plate (22) arranged in the depositing table of the placing table (13), limiting columns (23) are uniformly distributed on the circumference of the lower end of the top plate (22), a first hydraulic cylinder (21) is connected to the center position of the limiting columns (23) and positioned on the lower side of the top plate (22), and the fixed end of the first hydraulic cylinder (21) is installed at the bottom of the placing table (13);

The die opening mechanism (3) comprises a lifting component connected to the lower side of the placing table (13), the lifting component is provided with die opening components, and the die opening components are uniformly distributed circumferentially and are at least provided with three parts.

2. An extrusion die opening machine as set forth in claim 1, wherein: the lifting assembly comprises a second hydraulic cylinder (31) fixed at the lower end of the placement table (13), a connecting ring (32) is arranged at the lower end of the second hydraulic cylinder (31), and upright posts (33) are uniformly distributed on the circumference of the connecting ring (32).

3. An extrusion die opening machine as set forth in claim 2, wherein: the die opening assembly comprises a mounting seat (34) fixed at the upper end of the upright post (33), a third hydraulic cylinder (35) is horizontally arranged on the mounting seat (34), a V-shaped riving knife (36) is fixed at the movable end of the third hydraulic cylinder (35), and the V-shaped riving knife (36) faces to the center position.

4. An extrusion die opening machine according to claim 3, wherein: the placement table (13) is provided with a notch groove which is penetrated by the mounting seat (34) at a position corresponding to the mounting seat (34), and the third hydraulic cylinder (35) is vertically arranged at two positions.

5. An extrusion die opening machine as set forth in claim 1, wherein: the top plate (22) is in sliding connection with the sinking table of the placing table (13), and a through hole for the limiting column (23) to pass through is formed in the bottom surface of the placing table (13).

6. An extrusion die opening machine according to claim 3, wherein: each V-shaped chopper (36) is positioned at the same horizontal level.