CN216634782U

CN216634782U - Integrated forming die for strip steel shell nozzle brick

Info

Publication number: CN216634782U
Application number: CN202123096330.XU
Authority: CN
Inventors: 孙旺; 孙启豹; 石凯; 王绍岭
Original assignee: Zibo Yuanhe Electrical And Mechanical Engineering Co ltd
Current assignee: Zibo Yuanhe Electrical And Mechanical Engineering Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-31
Anticipated expiration: 2031-12-10

Abstract

A strip steel shell nozzle brick integrated forming die belongs to the technical field of nozzle brick dies. In the through-hole was stretched into on the upper portion of mold core (5), die block (6) cover was established outside mold core (5), and seal the through-hole bottom, form die cavity (402), equal slidable is connected between die block (6) and mold core (5) and between die block (6) and external mold (4), the through-hole inner wall indent forms steel shell installation department (401) around the setting of through-hole inner wall, the top of steel shell installation department (401) and the top parallel and level of die cavity (402), the bottom is higher than the bottom setting of die cavity (402). The integral forming die for the nozzle brick with the steel shell directly presses the nozzle brick and the steel shell into a whole, so that the bonding process of the nozzle brick and the steel shell is omitted, the production process of the nozzle brick is simplified, the production speed of the nozzle brick is improved, and the high bonding strength of the nozzle brick and the steel shell can be ensured.

Description

Integrated forming die for strip steel shell nozzle brick

Technical Field

A strip steel shell nozzle brick integrated forming die belongs to the technical field of nozzle brick dies.

Background

The upper and lower nozzle bricks of the ladle are important refractory functional elements in the ladle, and once steel leakage occurs, the consequences are very serious, so that the nozzle bricks are required by steel factories to be used for a plurality of times and have high safety factors. Nozzle bricks are usually pressed by means of a mould, and after the pressing of the nozzle bricks is completed, the outer wall of the nozzle bricks needs to be covered with a steel shell to ensure the strength of the nozzle bricks.

The production method of the prior nozzle brick is that the nozzle brick is pressed firstly, then the steel shell is sleeved outside the nozzle brick, and materials are poured between the nozzle brick and the steel shell again to realize the connection between the nozzle brick and the steel shell, but the bonding method can cause the poor bonding strength between the steel shell and the nozzle brick, and the production speed of the nozzle brick is slow.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, and the strip steel shell nozzle brick integrated forming die which can directly press the nozzle brick and the steel shell into a whole when the nozzle brick is pressed is provided, is simple in production process, and is firm in combination of the nozzle brick and the steel shell.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the integrated forming die for the strip steel shell nozzle brick comprises an upper die and a lower die, and is characterized in that: the lower mould include external mold, mold core and die block, be provided with the through-hole on the external mold, in the through-hole was stretched into on the upper portion of mold core, the die block cover was established outside the mold core to seal the through-hole bottom, form the die cavity, equal slidable is connected between die block and the mold core and between die block and the external mold, through-hole inner wall indent forms the box hat installation department around the through-hole inner wall setting, the top of box hat installation department and the top parallel and level of die cavity, the bottom setting that the bottom is higher than the die cavity.

Preferably, the depth of the steel shell mounting part is equal to the thickness of the steel shell.

Preferably, the diameter of the upper portion of die cavity be greater than the diameter of lower part, the middle part of die cavity is the transition portion that the diameter reduces from top to bottom gradually, the diameter of die cavity bottom reduces from top to bottom gradually.

Preferably, the mould further comprises a compensation sleeve, the compensation sleeve is detachably mounted at the top of the outer mould, and the upper opening of the mould cavity is arranged in the compensation sleeve. The existence of compensation cover can save some materials more when the cloth, guarantees that the density of the nozzle brick of suppression is moderate, guarantees that the material that cloth adds all sends into the die cavity in, makes nozzle brick quality homogeneous.

Preferably, the inner diameter of the compensation sleeve is equal to the diameter of the top of the die cavity.

Preferably, the die further comprises a lower die holder, the lower die holder is annular, and the outer die is detachably mounted in the lower die holder.

Preferably, the diameter of the outer wall of the outer die is gradually reduced from top to bottom. The outer wall of the outer mold is conical, so that the outer mold is convenient to disassemble and assemble.

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

this belted steel shell nozzle brick integrated into one piece mould's external mold, mold core and die block surround the die cavity, go up the bottom of mould and stretch into in the die cavity by the top of die cavity, in order to realize the suppression to nozzle brick, the upper portion inner wall that encircles the through-hole is provided with the box hat installation department, before cloth in to the die cavity, place the box hat in the box hat installation department earlier, then to the interior cloth of box hat, at the in-process of suppression nozzle brick, directly be as an organic whole with nozzle brick and box hat suppression, the process of the bonding of nozzle brick and box hat has been saved, the production technology of nozzle brick has been simplified, the production speed of nozzle brick has been improved, can also guarantee that the bonding strength of nozzle brick and box hat is high.

Drawings

Fig. 1 is a schematic sectional view of a mold for integrally molding a nozzle brick with a steel shell.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

In the figure: 1. the device comprises an upper die 101, a lower convex part 2, a lower die holder 3, a compensation sleeve 4, an outer die 401, a steel shell installation part 402, a die cavity 5, a core die 6, a bottom die 7, a connecting sleeve 8, a steel shell 9 and a compression ring.

Detailed Description

The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.

FIGS. 1 to 3 illustrate preferred embodiments of the present invention, and the present invention will be further described with reference to FIGS. 1 to 3.

The utility model provides a belted steel shell nozzle brick integrated into one piece mould, including last mould 1 and lower mould, the lower mould includes external mold 4, mold core 5 and die block 6, be provided with the through-hole on the external mold 4, the upper portion of mold core 5 stretches into in the through-hole, 6 covers of die block are established outside mold core 5, and seal the through-hole bottom, form die cavity 402, equal slidable is connected between die block 6 and the mold core 5 and between die block 6 and the external mold 4, the through-hole inner wall indent, form the steel shell installation department 401 around the through-hole inner wall setting, the top of steel shell installation department 401 and the top parallel and level of die cavity 402, the bottom is higher than the bottom setting of die cavity 402. This belted steel shell nozzle brick integrated into one piece mould's external mold 4, mold core 5 and die block 6 surround into die cavity 402, go up the bottom of mould 1 and stretch into in die cavity 402 by the top of die cavity 402, in order to realize the suppression to the nozzle brick, the upper portion inner wall that encircles the through-hole is provided with steel casing installation department 401, before cloth in to die cavity 402, place steel casing 8 in steel casing installation department 401 earlier, then to cloth in the steel casing 8, at the in-process of suppression nozzle brick, directly be as an organic whole with nozzle brick and steel casing 8 suppression, the technology of the bonding of nozzle brick and steel casing 8 has been saved, the production technology of nozzle brick has been simplified, the production speed of nozzle brick has been improved, can also guarantee that the bonding strength of nozzle brick and steel casing 8 is high.

Specifically, the method comprises the following steps: as shown in FIGS. 1 to 3: the strip steel shell nozzle brick integrated forming die further comprises a lower die holder 2 and a compensation sleeve 3, wherein the lower die holder 2 is annular, and the lower part of an outer die 4 extends into the lower die holder 2 and is detachably connected with the lower die holder 2. The inner diameter of the compensation sleeve 3 is equal to that of the top of the outer die 4, and the compensation sleeve 3 is coaxially arranged on the upper side of the outer die 4.

This belted steel shell nozzle brick integrated into one piece mould still includes clamping ring 9, the diameter of 4 outer walls of external mold from top to bottom reduces gradually, the internal diameter at the top of die holder 2 is greater than the internal diameter of lower part, and form the accommodating part at the top of die holder 2, clamping ring 9 sets up in the accommodating part, and be connected with 2 detachable of die holder, the internal diameter of clamping ring 9 is greater than the internal diameter at 4 tops of external mold, be less than the external diameter of external mold 4, and compress tightly external mold 4 on die holder 2, the lower part of compensation cover 3 stretches into in the clamping ring 9.

The mold core 5 is vertically arranged, the upper part of the mold core 5 can slidably extend into the outer mold 4, and the mold core 5 is connected with a mold core oil cylinder. The bottom die 6 is sleeved outside the mold core 5, the bottom die 6 is slidably connected with the mold core 5, the outer wall of the bottom die 6 is slidably connected with the inner wall of the outer die 4, the bottom die 6 and the mold core 5 surround a mold cavity 402, and the mold cavity 402 surrounds the mold core 5. The lower part of the mold core 5 is sleeved with a connecting sleeve 7, and the upper end of the connecting sleeve 7 is fixedly connected with the bottom of the bottom mold 6 and extends into the outer mold 4, so that the bottom mold 6 is pressurized conveniently.

The middle part of die cavity 402 is provided with the through-hole, and the diameter of the lower part of die cavity 402 is less than the diameter on upper portion, and the middle part of die cavity 402 is provided with the transition portion that the diameter reduces gradually from top to bottom, and the diameter of die cavity 402 bottom reduces gradually from top to bottom.

Encircle the through-hole inner wall and be provided with steel-shelled installation department 401, the top of steel-shelled installation department 401 and the top parallel and level of external mold 4, the bottom of steel-shelled installation department 401 is located the upside of die block 6, and the degree of depth of steel-shelled installation department 401 is equivalent with the thickness of steel-shelled 8, makes the steel-shelled install in die cavity 402 after, parallel and level between the bottom inner wall of steel-shelled inner wall and die cavity 402.

The upper die 1 is arranged on the upper side of the outer die 4, the upper die 1 is arranged opposite to the outer die 4, a lower convex part 101 with the diameter smaller than that of the upper part is arranged at the bottom of the upper die 1, and the lower convex part 101 is in a conical shape with the diameter gradually reduced from top to bottom. The bottom of the upper die 1 is provided with a through hole for the top of the die core 5 to extend into.

The working process of the integrated forming die for the nozzle brick with the steel shell comprises the following steps: first place box hat 8 in the box hat installation department 401 of die cavity 402, the laminating of box hat 8 and the 401 outer wall of box hat installation department, the bottom support of box hat 8 is in the bottom of box hat installation department 401, and the inner wall parallel and level of the 8 inner walls of box hat and the bottom of die cavity 402.

The material is distributed into the die cavity 402 through the compensation sleeve 3, the hydraulic press drives the upper die 1 to move downwards after the material distribution is finished, and the material is pressed through the upper die 1.

After the upper die 1 moves downwards to a designated position, the hydraulic machine drives the lower die holder 2 to move downwards, the outer die 4 moves downwards synchronously, meanwhile, the hydraulic cylinder connected with the die core 5 moves, the die core 5 and the lower die holder 2 move downwards synchronously, the upper die 1 also moves downwards synchronously, and the bottom die 6 moves upwards relative to the outer die 4 at the moment, so that the bottom of the nozzle brick is pressed, the bottom of the nozzle brick is reliably pressed, and the density of the nozzle brick is uniform.

After pressing, the upper die 1 moves upwards, the lower die holder 2 continues to move downwards, and the die drawing is completed under the action of the bottom die 6, so that the pressed nozzle brick is conveniently taken out of the die cavity 402.

The bottom die 6 can also be connected with a hydraulic cylinder, thereby facilitating the pressing of the bottom of the nozzle brick and the stripping of the nozzle brick.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a belted steel shell nozzle brick integrated into one piece mould, includes mould (1) and lower mould, its characterized in that: the lower mould include external mold (4), mold core (5) and die block (6), be provided with the through-hole on external mold (4), the upper portion of mold core (5) stretches into in the through-hole, die block (6) cover is established outside mold core (5), and seal the through-hole bottom, form die cavity (402), equal slidable is connected between die block (6) and mold core (5) and between die block (6) and external mold (4), through-hole inner wall indent forms steel shell installation department (401) around the through-hole inner wall setting, the top of steel shell installation department (401) and the top parallel and level of die cavity (402), the bottom setting that the bottom is higher than die cavity (402).

2. The mold for integrally molding the nozzle brick with the steel shell according to claim 1, wherein: the depth of the steel shell mounting part (401) is equal to the thickness of the steel shell (8).

3. The mold for integrally forming the nozzle brick with the steel shell according to claim 1, wherein: the diameter of the upper part of the die cavity (402) is larger than that of the lower part of the die cavity, the middle part of the die cavity (402) is a transition part with the diameter gradually reduced from top to bottom, and the diameter of the bottom of the die cavity (402) is gradually reduced from top to bottom.

4. The mold for integrally molding the nozzle brick with the steel shell according to claim 1, wherein: the mold further comprises a compensation sleeve (3), the compensation sleeve (3) is detachably mounted at the top of the outer mold (4), and the upper opening of the mold cavity (402) is arranged in the compensation sleeve (3).

5. The mold for integrally molding the nozzle brick with the steel shell as claimed in claim 4, wherein: the inner diameter of the compensating sleeve (3) is equal to the diameter of the top of the die cavity (402).

6. The mold for integrally molding the nozzle brick with the steel shell according to claim 1 or 4, wherein: the die is characterized by further comprising a lower die base (2), wherein the lower die base (2) is annular, and the outer die (4) is detachably mounted in the lower die base (2).

7. The mold for integrally molding the nozzle brick with the steel shell according to claim 6, wherein: the diameter of the outer wall of the outer die (4) is gradually reduced from top to bottom.