CN210939803U

CN210939803U - Carbon anode production mould for aluminum capable of reducing flash

Info

Publication number: CN210939803U
Application number: CN201921666597.8U
Authority: CN
Inventors: 时永鑫; 李念周; 付金玉; 李荣艳
Original assignee: Henan Chinalco Equipment Co ltd
Current assignee: Henan Chinalco Equipment Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-07
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a carbon anode production mould for aluminium of reducible overlap, including last mould, well mould and lower mould, go up mould, well mould and lower mould compound die formation mould chamber, its characterized in that: the middle die comprises a middle die upper part, a middle die middle part and a middle die lower part which are sequentially arranged from top to bottom, the inner walls of the middle die upper part and the middle die lower part are vertical, and four inner walls of the middle die middle part surround to form a frustum-shaped cavity with the size of the top end surface smaller than that of the bottom end surface; the peripheral wall of the upper die is vertically arranged, and the shape and the size of the upper die are matched with the shape and the size of the top end face of the frustum-shaped cavity; the utility model discloses a set up the vertical well mould upper portion of inner wall for go up the laminating that the periphery wall of mould can be all the time when getting into well mould and pushing down on the inner wall on well mould upper portion, reduced the gap between the periphery wall of last mould and the well mould upper portion inner wall, thereby reduced the production of overlap.

Description

Carbon anode production mould for aluminum capable of reducing flash

Technical Field

The utility model belongs to the technical field of carbon electrode production, concretely relates to carbon anode production mould for aluminium of reducible overlap.

Background

The flash is also called as flash, burr, etc., and mostly occurs at the parting and joining position of the mold, such as the parting surface of the movable mold and the static mold, the sliding part of the slide block, the clearance of the insert, the hole of the ejector rod, etc.

The carbon anode for aluminum electrolysis, which is called carbon anode for aluminum for short, refers to a carbon electrode connected with a power supply anode in an aluminum electrolysis cell, and is an important component of the aluminum electrolysis cell. The carbon anode for aluminum is a soup block type carbon block, generally, referring to fig. 1, a mold for producing the carbon anode for aluminum is divided into an upper mold, a middle mold and a lower mold, a heating bin is arranged at the periphery of the middle mold, 150 ℃ of heat conducting oil is introduced into the heating bin, the middle mold is placed on the lower mold when the carbon anode for aluminum is produced, a carbon raw material is injected into the middle mold, the mold vibrates when the material is injected, the upper mold is covered after the carbon raw material is uniform, and the upper mold moves downwards under the pushing of an oil press with downward pressure to extrude and form a carbon electrode joint.

In order to produce the inclined side surface of the carbon anode for aluminum, it is required that the inner wall of the middle mold is inclined, that is, the size of the upper half part of the middle mold is gradually reduced from top to bottom, but the upper mold is inserted into the middle mold, so that the outer diameter of the upper mold is smaller than the inner diameter of the uppermost end of the middle mold, and as a result, during the downward movement of the upper mold, the gap between the outer peripheral wall of the upper mold and the inner wall of the inlet of the middle mold is gradually increased as the upper mold moves downward, so that a lot of burrs are produced on the upper surface of the carbon anode for aluminum, a production position of the burrs is indicated at a in fig. 1, and after the burrs are produced, other processes are required to treat the burrs to enter the next process, so that the production efficiency of the carbon anode for aluminum is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a carbon anode production mould for aluminum, which reduces the flash by reducing the clearance between the periphery of the upper mould and the inner wall of the middle mould.

The technical scheme of the utility model as follows:

the utility model provides a carbon anode production mould for aluminium of reducible overlap, includes mould, well mould and lower mould, go up mould, well mould and lower mould compound die and form the mould chamber, its characterized in that: the middle die comprises a middle die upper part, a middle die middle part and a middle die lower part which are sequentially arranged from top to bottom, the inner walls of the middle die upper part and the middle die lower part are vertical, and four inner walls of the middle die middle part surround to form a frustum-shaped cavity with the size of the top end surface smaller than that of the bottom end surface; the periphery wall of the upper die is vertically arranged, and the shape and the size of the upper die are matched with those of the top end surface of the frustum-shaped cavity.

Furthermore, the edge of the lower end face of the upper die is provided with a circle of upper die convex ring which is concentrically arranged with the upper die, and the overlooking shape of the upper die convex ring is the same as the overlooking shape of the upper die 1 and is a rectangle.

Furthermore, the cross section of the upper die convex ring is in a right trapezoid or rectangle shape.

Further, the height of the upper die convex ring is 70-75 mm.

Furthermore, a positioning concave ring is arranged on the bottom end face of the middle die, and a positioning convex ring matched with the positioning concave ring is arranged on the lower die.

Further, a lower die boss is arranged on the upper surface of the lower die, the lower die boss extends into the middle die in a die closing state, and the lower part of the middle die abuts against the periphery of the lower die boss to form a die cavity.

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

the utility model discloses a final position that the upper die pushed down is in the handing-over department in well mould upper portion and well mould middle part, the utility model discloses a set up the well mould upper portion that the inner wall is vertical for the periphery wall of upper die can be the laminating all the time when the middle mould pushed down when getting into on the inner wall on well mould upper portion, reduced the gap between the periphery wall of upper die and the well mould upper portion inner wall, thereby reduced the production of overlap;

make through setting up the mould bulge loop the utility model discloses an go up the mould and applyed a partial component of mode axis in being partial to carbon electrode raw materials at the in-process that pushes down, can control effectively and go up the radial motion of mould edge material granule to reduce the granule volume of piling up the carbon electrode raw materials in gap between last mould and the well mould, also be favorable to weakening the extrusion force to the gap department carbon electrode raw materials granule between last mould and the well mould, consequently though the utility model discloses a carbon anode production mould for aluminium still inevitable can have certain clearance between last mould and well mould, but the effect through this structure also can reach the purpose of controlling carbon anode overlap for aluminium effectively.

Drawings

Fig. 1 is a schematic sectional structure diagram of a carbon anode production mold for aluminum in the background art of the present invention.

Fig. 2 is a schematic position diagram of an upper portion and an upper die of a middle die during die assembly according to an embodiment of the present invention.

Fig. 3 is a schematic view of positions of the lower portion of the middle mold and the lower mold during mold closing according to an embodiment of the present invention.

In the figure, an upper die 1, an upper die convex ring 11, a middle die upper part 21, a middle die middle part 22, a middle die lower part 23, a positioning concave ring 24, a lower die 3, a lower die boss 31, a positioning convex ring 33 and an aluminum carbon anode 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The structure of the carbon anode production mold for aluminum in the prior art is shown in fig. 1, and the present invention is made on the basis of the carbon anode production mold for aluminum shown in fig. 1, so that the improved structure of the present invention is shown only in fig. 1, fig. 2 and fig. 3.

As shown in fig. 2 to 3, a carbon anode production mould for aluminum capable of reducing flash, comprising an upper mould 1, a middle mould and a lower mould 3, wherein the upper mould 1, the middle mould and the lower mould 3 are assembled to form a mould cavity, characterized in that: the middle die comprises a middle die upper part 21, a middle die middle part 22 and a middle die lower part 23 which are sequentially arranged from top to bottom, the inner walls of the middle die upper part 21 and the middle die lower part 23 are vertical, and four inner walls of the middle die middle part 22 surround to form a frustum-shaped cavity with the size of the top end surface smaller than that of the bottom end surface; the peripheral wall of the upper die 1 is vertically arranged, and the shape and the size of the upper die 1 are matched with those of the top end surface of the frustum-shaped cavity; because the inner wall diameter of well mould upper portion 21 is the same downwards, simultaneously, the shape size of going up mould 1 and the shape adaptation of die cavity on the middle part, like this when going up mould 1 compound die, the periphery wall of going up mould 1 can laminate with the inner wall of well mould upper portion 21 all the time, reduces the production of having avoided the gap even to the production of overlap has been reduced.

Preferably, as shown in fig. 2, a circle of upper mold convex rings 11 concentrically arranged with the upper mold 1 is provided at the edge of the lower end surface of the upper mold 1, the top view shape of the upper mold convex rings 11 is the same as the top view shape of the upper mold 1, and is rectangular, and the cross section shape of the upper mold convex rings 11 is a right trapezoid or a rectangle; preferably, the cross section of the upper die convex ring 11 is in the shape of a right trapezoid, the right-angle side of the right trapezoid is flush with the outer peripheral wall of the upper die 1, and the inclined side of the right trapezoid inclines towards the direction far away from the axis of the middle die along the up-down direction; through setting up mould bulge loop 11, the utility model discloses an go up mould 1 and exerted the component force of a deviation to well mould axis to the carbon electrode raw materials at the in-process that pushes down, can control effectively and go up the motion of mould 1 edge material granule along radial to the reduction is piled up the particle volume of the carbon electrode raw materials in the gap between last mould 1 and well mould, also is favorable to weakening the extrusion force to gap department carbon electrode raw materials granule between last mould 1 and the well mould, thereby has reduced the production of overlap and has reduced the thickness of the overlap of production.

Preferably, as shown in fig. 2, the inclined side of the upper male ring 11 having the right-angled trapezoidal section forms an angle of 25 to 75 degrees with the horizontal plane, and preferably, the inclined side of the upper male ring 11 having the right-angled trapezoidal section forms an angle of 45 to 60 degrees with the horizontal plane.

The carbon anode for aluminum produced by the carbon production mold has the height of about 1 meter, and the corresponding upper mold convex ring 11 has the height of 70 to 75 mm.

Preferably, as shown in fig. 3, in order to quickly realize the positioning fit between the middle mold and the lower mold 3 and simultaneously cut off and reduce the generation of bottom flash, a positioning concave ring 24 is arranged on the bottom end surface of the middle mold, a positioning convex ring 33 matched with the positioning concave ring 24 is arranged on the lower mold 3, and the carbon electrode raw material overflowing from the gap between the middle mold and the lower mold 3 is difficult to climb over the positioning convex ring 33, so that the generation of flash is reduced.

Preferably, as shown in fig. 3, a lower mold boss 31 is provided on the upper surface of the lower mold 3, in the mold closing state, the lower mold boss 31 extends into the middle mold, the middle mold lower portion 23 abuts against the periphery of the lower mold boss 31 to form a mold cavity, and when the middle mold lower portion 23 and the lower mold boss 31 are closed, the peripheral wall of the middle mold lower portion 23 is always attached to the periphery of the lower mold boss 31, so that a gap between the peripheral wall of the middle mold lower portion 23 and the inner wall of the lower mold boss 31 is reduced, and thereby, the generation of flash is reduced.

It should be noted that one of the improvements of the present application is in the inlet portion of the middle mold, and the improved technical means of the present application can also be applied to other molds of middle molds with inclined side walls.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a carbon anode production mould for aluminium of reducible overlap, includes mould (1), well mould and lower mould (3), go up mould (1), well mould and lower mould (3) compound die and form the mould chamber, its characterized in that: the middle die comprises a middle die upper part (21), a middle die middle part (22) and a middle die lower part (23) which are sequentially arranged from top to bottom, the inner walls of the middle die upper part (21) and the middle die lower part (23) are vertical, and four inner walls of the middle die middle part (22) surround to form a frustum-shaped cavity with the size of the top end surface smaller than that of the bottom end surface; the outer peripheral wall of the upper die (1) is vertically arranged, and the shape and the size of the upper die (1) are matched with the shape and the size of the top end face of the frustum-shaped cavity.

2. The carbon anode production mold for aluminum capable of reducing flash as claimed in claim 1, wherein: the edge of the lower end face of the upper die (1) is provided with a circle of upper die convex ring (11) which is concentric with the upper die (1).

3. The carbon anode production mold for aluminum capable of reducing flash according to claim 2, wherein: the cross section of the upper die convex ring (11) is in a right trapezoid shape or a rectangular shape.

4. The carbon anode production mold for aluminum capable of reducing flash according to claim 2, wherein: the height of the upper die convex ring (11) is 70-75 mm.

5. The carbon anode production mold for aluminum capable of reducing flash as claimed in claim 1, wherein: a positioning concave ring (24) is arranged on the bottom end face of the middle die, and a positioning convex ring (33) matched with the positioning concave ring (24) is arranged on the lower die (3).

6. The carbon anode production mold for aluminum capable of reducing flash as claimed in claim 1, wherein: the upper surface of the lower die (3) is provided with a lower die boss (31), the lower die boss (31) extends into the middle die in a die closing state, and the lower part (23) of the middle die abuts against the periphery of the lower die boss (31) to form a die cavity.