CN217257020U

CN217257020U - Corundum crucible preparation mould and forming structure

Info

Publication number: CN217257020U
Application number: CN202123119296.3U
Authority: CN
Inventors: 周成; 周益城; 周成平
Original assignee: Changxing Zhengfa Thermoelectrtric Refractory Material Co ltd
Current assignee: Changxing Zhengfa Thermoelectrtric Refractory Material Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-08-23
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a corundum crucible preparation mould and forming structure, which aims to provide a corundum crucible preparation mould and forming structure with less air holes and high quality. Including fixing base, external mold, crossbeam and centre form, the bottom and the fixing base of external mold are connected, the centre form sets up in the inner chamber of external mold, be equipped with between centre form and the external mold and pour the chamber, the crossbeam sets up top and centre form fixed connection at the external mold, the centre form passes through the crossbeam and is connected with the external mold, install the vibrator in the middle of the top of fixing base, the vibrator sets up in the middle of the bottom of external mold. The utility model has the advantages that: the vibrator is arranged on the base of the outer die, and the vibrator vibrates to facilitate the discharge of bubbles, so that the surface of the die is smoother, the molding quality is optimized, and the purposes of less air holes and high quality are achieved.

Description

Corundum crucible preparation mould and forming structure

Technical Field

The utility model belongs to the technical field of the relevant technique of crucible preparation and specifically relates to indicate a corundum crucible preparation mould and forming structure.

Background

The crucible is an important component of a chemical instrument, is a container for melting and refining metal liquid, heating solid and liquid and reacting, and is the basis for ensuring the smooth progress of chemical reaction. The corundum crucible is a key device for smelting and precision casting of various non-ferrous metals and surface metallization treatment of products.

The corundum crucible solves the problems of perforation of a molten pool and the like caused by the fact that the melting loss of a brick joint of an original corundum brick is increased in the using process, and the existing corundum crucible mold is difficult to solve the problem that a product is difficult to demold due to air suction when the bottom is demolded in the using process.

Chinese patent grant publication no: CN203831550U, grant bulletin date 2014, 09.17.A disclosed mould for preparing high-purity corundum crucible, including die block, external mold and centre form, the bottom of external mold is fixed on the die block, the centre form is located the inner chamber of external mold, centre form and the cavity between die block and the external mold constitute the chamber of pouring of high-purity corundum crucible, its characterized in that centre form include centre form mold cylinder and bottom, be equipped with the through-hole on the diapire of centre form mold cylinder, the lower part embedding of bottom is in the through-hole of centre form mold cylinder diapire and the bottom passes through the connecting piece to be fixed on the diapire of centre form mold wall.

The proposal solves the problem that the bottom of the high-purity corundum crucible is difficult to demold due to air suction during demolding, and has the defects that: the casting slurry is easy to mix into bubbles, which causes the surface of the corundum mold to be uneven, and influences the use effect and the service life of the quartz crucible.

To sum up, the utility model provides a new technical scheme solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a corundum crucible preparation mould and forming structure with few air holes and high quality, which overcomes the defects of many air holes and low quality of corundum crucible preparation moulds and forming structures in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a corundum crucible preparation mould and shaping structure, includes fixing base, external mold, crossbeam and centre form, the bottom and the fixing base of external mold are connected, the centre form sets up in the inner chamber of external mold, be equipped with between centre form and the external mold and pour the chamber, the crossbeam sets up top and centre form fixed connection at the external mold, the centre form passes through the crossbeam and is connected with the external mold, install the vibrator in the middle of the top of fixing base, the vibrator sets up in the middle of the bottom of external mold.

Pouring the prepared casting slurry into a casting cavity slowly at a constant speed, turning on a vibrator switch, starting vibration of the vibrator, installing the vibrator on a fixed seat and placing the vibrator at the bottom of an outer mold, installing the outer mold on the fixed seat, driving the outer mold to vibrate together by vibration of the vibrator, discharging bubbles in the casting slurry, observing that no bubbles are discharged from the top, closing the vibrator, after molding, slowly detaching the outer mold from the fixed seat, then taking out an inner mold by utilizing the guide of a cross beam, thus completing demolding, providing the vibrator to assist in discharging the bubbles, omitting the process of placing the injected mold on an external vibration instrument, saving time, reducing cost, enabling the mold surface to be smoother by the operation of the vibrator, increasing the density and the analytic strength of the mold, and achieving the purposes of few air holes and high quality of the prepared mold.

Preferably, the outer mold comprises an upper mold, a lower mold and a base, the upper mold is connected with the lower mold, the lower mold is connected with the top of the base, the bottom of the base is connected with fixing feet, fixing grooves matched with the fixing feet are formed in the fixing seat, springs are arranged in the fixing grooves, one ends of the springs are connected with the fixing grooves, the fixing feet are arranged in the fixing grooves, and the other ends of the springs are connected with the fixing feet. The outer mold is divided into three parts, the upper mold is connected with the lower mold, the lower mold is connected with the base, the base is installed on the fixing seat, the mold is conveniently released due to the design of the sub-modules, the fixing feet are arranged in the fixing grooves, and the springs in the fixing grooves resonate when the vibrator vibrates, so that the outer mold vibrates, air bubbles are generated, and the quality of the mold is improved.

Preferably, an inner groove matched with the vibrator is formed in the middle of the bottom of the base, and one side, far away from the fixed seat, of the vibrator is arranged in the inner groove and is connected with the base in an inserting mode. The inner groove at the bottom of the base is convenient for the vibrator to be embedded, so that the vibrator is convenient to contact with the bottom surface of the base during vibration, and the discharge of bubbles is further optimized.

Preferably, the upper die comprises a first upper die and a second upper die, a first insert block is connected to one side wall of the first upper die, a first insert slot matched with the first insert block is formed in one side wall of the second upper die, a second insert block is connected to the other side wall of the second upper die, a second insert slot matched with the second insert block is formed in the other side wall of the first upper die, and the first upper die is connected with the second upper die through the matching of the first insert block, the first insert slot, the second insert block and the second insert slot. The first insert of the first upper die is inserted into the first slot of the second upper die, and the second insert of the second upper die is arranged in the second slot of the first upper die, so that the connection is tight, and the die removal efficiency is optimized.

Preferably, the bottom of the first upper die and the bottom of the second upper die are both connected with a first protrusion, the top of the lower die is provided with a first groove matched with the first protrusion, the top of the lower die is connected with a second protrusion, the bottom of the first upper die and the bottom of the second upper die are both provided with a second groove matched with the second protrusion, and the first upper die and the second upper die are connected with the lower die through the matching of the first protrusion, the first groove, the second protrusion and the second groove. After the first upper die and the second upper die are connected, the first protrusion at the bottom of the upper die is inserted into the first groove at the top of the lower die, and the second protrusion at the top of the lower die is inserted into the second groove at the bottom of the upper die, so that the upper die and the lower die are connected, the integral upper die is firstly detached from the lower die during demolding of the outer die, and then the first upper die and the second upper die are detached.

Preferably, the inner mold comprises a mold cylinder and a bottom cover, the top of the mold cylinder is connected with the cross beam, and the bottom wall of the mold cylinder is detachably connected with the bottom cover. The centre form divide into a mould section of thick bamboo and bottom, and a mould section of thick bamboo and crossbeam fixed connection, the dismantlement of centre form when being convenient for the drawing of patterns, and the crossbeam arranges the discharge of the unnecessary slip casting of being convenient for in external mold top in, increases the level and smooth at whole mould structure top, and the bottom can be dismantled with a mould section of thick bamboo and be connected, further optimizes the drawing of patterns.

The beneficial effects of the utility model are that: the vibrator is arranged on the base of the outer die, and the vibrator vibrates to facilitate the discharge of bubbles, so that the surface of the die is smoother, the molding quality is optimized, and the purposes of less air holes and high quality are achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an enlarged view of A;

FIG. 4 is a top view of the anchor block;

FIG. 5 is a schematic view of the upper die;

fig. 6 is an enlarged view of B.

In the figure: 1. the vibration-damping device comprises a fixed seat, 11. a fixed groove, 12. a spring, 2. an outer die, 21. an upper die I, 211. an insertion block I, 212. an insertion groove II, 213. a protrusion I, 214. a groove II, 22. an upper die II, 221. an insertion block II, 222. an insertion groove I, 23. a lower die, 231. a protrusion II, 232. a groove I, 24. a base, 241. an inner groove, 242. a fixed foot, 3. a cross beam, 4. an inner die, 41. a die cylinder, 42. a bottom cover, 5. a pouring cavity and 6. a vibrator.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

As shown in figures 1 and 2, the corundum crucible preparation mold and the forming structure comprise a fixed seat 1, an outer mold 2, a cross beam 3 and an inner mold 4, wherein the bottom of the outer mold 2 is connected with the fixed seat 1, the inner mold 4 is arranged in an inner cavity of the outer mold 2, a pouring cavity 5 is arranged between the inner mold 4 and the outer mold 2, the cross beam 3 is arranged at the top of the outer mold 2 and fixedly connected with the inner mold 4, the inner mold 4 is connected with the outer mold 2 through the cross beam 3, a vibrator 6 is arranged in the middle of the top of the fixed seat 1, and the vibrator 6 is arranged in the middle of the bottom of the outer mold 2.

The outer mold 2 shown in fig. 3 and 4 includes an upper mold, a lower mold 23 and a base 24, the upper mold is connected to the lower mold 23, the lower mold 23 is connected to the top of the base 24, the bottom of the base 24 is connected to a fixing leg 242, a fixing groove 11 matched with the fixing leg 242 is formed in the fixing base 1, a spring 12 is arranged in the fixing groove 11, one end of the spring 12 is connected to the fixing groove 11, the fixing leg 242 is arranged in the fixing groove 11, and the other end of the spring 12 is connected to the fixing leg 242.

As shown in FIG. 1, an inner groove 241 matched with the vibrator 6 is arranged in the middle of the bottom of the base 24, and one side of the vibrator 6 far away from the fixed seat 1 is arranged in the inner groove 241 and is inserted into the base 24.

As shown in fig. 5, the upper die includes a first upper die 21 and a second upper die 22, a first insert block 211 is connected to one side wall of the first upper die 21, a first insert slot 222 matched with the first insert block 211 is formed in one side wall of the second upper die 22, a second insert block 221 is connected to the other side wall of the second upper die 22, a second insert slot 212 matched with the second insert block 221 is formed in the other side wall of the first upper die 21, and the first upper die 21 is connected to the second upper die 22 through the matching of the first insert block 211, the first insert slot 222, the second insert block 221 and the second insert slot 212.

As shown in fig. 5 and 6, the bottoms of the first upper die 21 and the second upper die 22 are both connected with a first protrusion 213, the top of the lower die 23 is provided with a first groove 232 matched with the first protrusion 213, the top of the lower die 23 is connected with a second protrusion 231, the bottoms of the first upper die 21 and the second upper die 22 are both provided with a second groove 214 matched with the second protrusion 231, and the first upper die 21 and the second upper die 22 are both connected with the lower die 23 through the matching of the first protrusion 213, the first groove 232, the second protrusion 231 and the second groove 214.

As shown in fig. 1, the inner mold 4 includes a mold cylinder 41 and a bottom cover 42, the top of the mold cylinder 41 is connected to the cross member 3, and the bottom of the mold cylinder 41 is detachably connected to the bottom cover 42.

When the corundum crucible preparation mold and the forming structure are integrally cast and formed, the outer mold 1 is demolded, the integral upper mold is firstly dismounted from the lower mold 23, then the upper mold 21 and the upper mold 22 are dismounted, the outer mold 2 is dismounted, the inner mold 4 is taken out by using the cross beam 3 after the outer mold 2 is dismounted, the mold cylinder 41 is taken out, the bottom cover 42 is taken out, and the demolding is finished.

Claims

1. The utility model provides a corundum crucible preparation mould and forming structure, characterized by, includes fixing base (1), external mold (2), crossbeam (3) and centre form (4), the bottom and fixing base (1) of external mold (2) are connected, centre form (4) set up in the inner chamber of external mold (2), be equipped with between centre form (4) and external mold (2) and pour chamber (5), crossbeam (3) set up at the top and centre form (4) fixed connection of external mold (2), centre form (4) are connected with external mold (2) through crossbeam (3), install vibrator (6) in the middle of the top of fixing base (1), vibrator (6) set up in the middle of the bottom of external mold (2).

2. A corundum crucible preparation mold and molding structure as claimed in claim 1, characterized in that the outer mold (2) comprises an upper mold, a lower mold (23) and a base (24), the upper mold is connected with the lower mold (23), the lower mold (23) is connected with the top of the base (24), the bottom of the base (24) is connected with a fixing foot (242), a fixing groove (11) matched with the fixing foot (242) is formed in the fixing seat (1), a spring (12) is arranged in the fixing groove (11), one end of the spring (12) is connected with the fixing groove (11), the fixing foot (242) is arranged in the fixing groove (11), and the other end of the spring (12) is connected with the fixing foot (242).

3. A corundum crucible preparation mold and molding structure as claimed in claim 2, characterized in that an inner groove (241) matched with the vibrator (6) is arranged in the middle of the bottom of the base (24), and one side of the vibrator (6) far away from the fixed seat (1) is arranged in the inner groove (241) and is inserted into the base (24).

4. A corundum crucible preparation mold and molding structure as claimed in claim 2, characterized in that the upper mold comprises a first upper mold (21) and a second upper mold (22), a first insert block (211) is connected to one side wall of the first upper mold (21), a first insert groove (222) matched with the first insert block (211) is formed in one side wall of the second upper mold (22), a second insert block (221) is connected to the other side wall of the second upper mold (22), a second insert groove (212) matched with the second insert block (221) is formed in the other side wall of the first upper mold (21), and the first upper mold (21) is connected with the second upper mold (22) through the matching of the first insert block (211), the first insert groove (222), the second insert block (221) and the second insert groove (212).

5. A corundum crucible preparation mold and molding structure as defined in claim 4 wherein, the bottom of the upper mold I (21) and the bottom of the upper mold II (22) are both connected with a first protrusion (213), the top of the lower mold (23) is provided with a first groove (232) matched with the first protrusion (213), the top of the lower mold (23) is connected with a second protrusion (231), the bottom of the upper mold I (21) and the bottom of the upper mold II (22) are both provided with a second groove (214) matched with the second protrusion (231), and the upper mold I (21) and the upper mold II (22) are both connected with the lower mold (23) through the matching of the first protrusion (213), the first groove (232), the second protrusion (231) and the second groove (214).

6. A corundum crucible preparation mold and molding structure according to claim 1, characterized in that the inner mold (4) comprises a mold cylinder (41) and a bottom cover (42), the top of the mold cylinder (41) is connected with the cross beam (3), and the bottom wall of the mold cylinder (41) is detachably connected with the bottom cover (42).