A nozzle brick mold

Abstract

The present invention relates to the technical field of refractory material forming molds, and in particular to a nozzle brick mold; it comprises a frame, a lower mold support seat fixedly mounted on the frame, a bottom mold fixedly mounted on the top of the lower mold support seat, a mold core slidably mounted in the bottom mold and the lower mold support seat, and a driving member providing power for the mold core to move up and down, a mold cavity that fits with the outer wall of the mold core is provided in the bottom mold, and a material removal assembly for guiding out the blanks is provided on the lower mold support seat, and the material removal assembly comprises an expanding cylinder and a blanking collection member fixedly mounted on the outer wall of the mold core, the blanking collection member is slidably mounted in the expanding cylinder, and the inner diameter of the expanding cylinder is larger than the inner diameter of the lower mold support seat; the outer diameter of the blanking collection member is larger than the inner diameter of the mold cavity of the bottom mold; and a material collecting trough is provided in the blanking collection member. The blanking of the raw materials for pressing the nozzle brick can be guided outward, reducing the blanking from entering the lower gap and the driving member, improving the smoothness of the mold core moving up and down, reducing energy consumption, and reducing the frequency of equipment maintenance and cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of refractory material forming moulds, in particular to a nozzle brick mould. Background Art

[0002] As we all know, nozzle bricks are components that are embedded in the bottom bricks of containers containing molten steel and are pressed and formed using refractory materials. They serve as the outflow outlet for molten steel in the container. During the production process, nozzle bricks are mainly processed and formed using nozzle brick molds.

[0003] Chinese utility model patent CN216634782U discloses an integrated forming mold for a nozzle brick with a steel shell, wherein the upper part of the mold core extends into the through hole, the bottom mold is sleeved outside the mold core and closes the bottom of the through hole to form a mold cavity, the bottom mold and the mold core as well as the bottom mold and the outer mold are slidably connected, the inner wall of the through hole is concave to form a steel shell mounting portion arranged around the inner wall of the through hole, and the integrated forming mold for a nozzle brick with a steel shell directly presses the nozzle brick and the steel shell into one, thereby simplifying the production process of the nozzle brick.

[0004] However, there is a gap between the outer wall of the mold core and the inner wall of the bottom mold. The raw materials in the bottom mold used for pressing and forming the nozzle bricks are easy to fall into the lower driving parts through the gap, causing waste of raw materials and interfering with the up and down movement of the mold core. The resistance during the up and down movement of the mold core is increased, affecting the smoothness of the up and down movement of the mold core and increasing the energy consumption of the driving parts. After a long period of accumulation of falling materials, the equipment often needs to be shut down for inspection and cleaning, which affects the production efficiency of nozzle bricks. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a nozzle brick mold for guiding the raw material for pressing nozzle bricks to fall outward, reducing the amount of falling material entering the lower gap and the driving member, improving the smoothness of the up and down movement of the mold core, reducing energy consumption, and reducing the frequency of equipment maintenance and cleaning.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sprue brick mold, comprising a frame, a lower mold support seat fixedly mounted on the frame, a bottom mold fixedly mounted on the top of the lower mold support seat, a mold core slidably mounted in the bottom mold and the lower mold support seat, and a driving member providing power for the mold core to move up and down, the bottom mold is provided with a mold cavity that fits with the outer wall of the mold core, the lower mold support seat is provided with a blanking removal component for blanking discharge, the blanking removal component comprises an expanding cylinder and a blanking collection piece fixedly mounted on the outer wall of the mold core, the blanking collection piece is slidably mounted in the expanding cylinder, the inner diameter of the expanding cylinder is larger than the inner diameter of the lower mold support seat, one end of the expanding cylinder is fixedly connected to the bottom mold, and the other end of the expanding cylinder is fixedly connected to the lower mold support seat; the outer diameter of the blanking collection piece is larger than the inner diameter of the mold cavity of the bottom mold; the blanking collection piece is provided with a collecting trough.

[0007] Furthermore, the portion of the top of the mold core extending into the mold cavity is in a conical shape; the driving member is preferably a hydraulic cylinder.

[0008] Preferably, it also includes a material guide pipe, which extends from the central axis of the mold core to the side away from the center of the mold core, and the material guide pipe is divided into an inclined tube and a vertical tube that are interconnected. A conical protrusion is provided in the falling material collection piece, and the inclined tube extends into the collecting trough. A material guide groove that coincides with the central axis of the inclined tube is provided on the inclined slope of the conical protrusion; the material guide groove is communicated with the inside of the inclined tube; and a slide groove that allows the material guide tube to slide up and down is provided on the expansion cylinder.

[0009] Preferably, a first collecting tray is installed at the bottom of the lower mold support seat, and the vertical tube is located above the first collecting tray.

[0010] Preferably, the first collecting tray can be detachably mounted on the lower mold support seat, the inclined tube is divided into a first tube portion and a second tube portion, a pipe joint is installed between the first tube portion and the second tube portion, and the first tube portion and the second tube portion are detachably connected via the pipe joint; further, the first collecting tray can be screwed onto the lower mold support seat, and the first collecting tray can also be detachably mounted on the lower mold support seat by bolts or the like.

[0011] Preferably, a second collecting tray is sleeved on the outer wall of the bottom mold, and an inclined annular slope portion is provided on the upper portion of the bottom mold; the second collecting tray is detachably mounted on the bottom mold.

[0012] Preferably, there are at least two groups of material guiding pipes.

[0013] Preferably, a cleaning brush is rotatably mounted on the bottom of the bottom mold, and the cleaning brush comprises an annular tube and bristles. A conical cavity matching the conical protrusion is provided in the annular tube, and the bristles are arranged in the conical cavity.

[0014] Preferably, a rotating driver for driving the cleaning brush to rotate is installed on the outer wall of the expansion cylinder; the rotating driver includes a driving motor fixedly installed on the expansion cylinder and a driving wheel fixedly installed on the output end of the driving motor, and the expansion cylinder is provided with a through opening extending inside and outside, and the driving wheel extends from the through opening into the expansion cylinder and is transmission-connected to the outer wall of the annular cylinder.

[0015] The rotation driver may also be a drive motor and a transmission gear or a transmission belt. The output end of the drive motor drives the ring cylinder to rotate through the transmission gear or the transmission belt to realize the rotation drive of the cleaning brush.

[0016] Preferably, a driving cylinder is installed on the upper part of the frame, and an upper mold is installed on the output end of the driving cylinder.

[0017] Preferably, the top of the mold core is in a cone shape, and the mold core can extend from the top of the bottom mold.

[0018] Compared with the prior art, the present invention provides a nozzle brick mold, which has the following beneficial effects:

[0019] The sprue brick mould is pressed by placing raw materials for pressing sprue bricks into a bottom film, and part of the falling materials generated in the process fall through the gap between the inner wall of the bottom mould and the mould core, and the falling materials collecting part receives the part of the falling materials, so as to avoid the falling materials from clogging the gap between the outer wall of the mould core and the inner wall of the lower mould support seat or falling into the driving part after the falling materials continue to fall, thereby avoiding interference with the up and down movement of the mould core or damage to the driving part, and guiding the falling materials for pressing sprue bricks outwards, reducing the falling materials from entering the lower gap and the driving part, thereby improving the smoothness of the up and down movement of the mould core, reducing the resistance during the lifting and lowering process of the driving part, and reducing energy consumption, and at the same time effectively reducing the frequency of equipment maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0021] Figure 2 It is a front structural schematic diagram of the present invention.

[0022] Figure 3 The present invention Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0023] Figure 4 The present invention Figure 3 Schematic diagram of the cross-sectional structure at BB in the middle.

[0024] Figure 5 It is a schematic diagram of the partial internal cross-sectional structure of the relevant parts of the blank collecting piece of the present invention.

[0025] Figure 6 The present invention Figure 1 Schematic diagram of the partial enlarged structure at point C in the middle.

[0026] Figure 7 The present invention Figure 3 Schematic diagram of the local enlarged structure at point D in the middle.

[0027] Figure 8 The present invention Figure 4 Schematic diagram of the local enlarged structure at point E in the middle.

[0028] Fig. 9 The present invention Figure 5 Schematic diagram of the partially enlarged structure at point F in the middle.

[0029] Fig.10 It is a schematic diagram of the internal three-dimensional structure of the press-formed nozzle brick of the present invention.

[0030] Markings in the attached drawings: 1. frame; 2. lower die support seat; 3. bottom die; 4. die core; 5. driving member; 6. expansion cylinder; 7. falling material collection member; 8. collecting trough; 9. inclined tube; 10. vertical tube; 11. conical protrusion; 12. material guide trough; 13. slide trough; 14. first collecting plate; 15. ring cylinder; 16. bristles; 17. driving motor; 18. driving wheel; 19. pipe joint; 20. second collecting plate; 21. inclined ring slope; 22. driving cylinder; 23. upper die. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-10 A nozzle brick mold of the present invention comprises a frame 1, a material guide pipe, a lower mold support seat 2 fixedly installed on the frame 1, a bottom mold 3 fixedly installed on the top of the lower mold support seat 2, a mold core 4 slidably installed in the bottom mold 3 and the lower mold support seat 2, and a driving member 5 providing power for the up and down movement of the mold core 4, and the driving member 5 is preferably a hydraulic cylinder. The material guide tube extends from the central axis of the mold core 4 to the side away from the center of the mold core 4. A mold cavity is provided in the bottom mold 3 and matches the outer wall of the mold core 4. A material removal component for guiding out the blanking material is provided on the lower mold support seat 2. The material removal component includes an expanding cylinder 6 and a blanking collection piece 7 fixedly installed on the outer wall of the mold core 4. The blanking collection piece 7 can be slidably installed in the expanding cylinder 6. The inner diameter of the expanding cylinder 6 is larger than the inner diameter of the lower mold support seat 2. One end of the expanding cylinder 6 is fixedly connected to the bottom mold 3, and the other end of the expanding cylinder 6 is fixedly connected to the lower mold support seat 2; the outer diameter of the blanking collection piece 7 is larger than the inner diameter of the mold cavity of the bottom mold 3; a material collecting trough 8 is provided in the blanking collection piece 7.

[0033] The top of the mold core 4 is in a cone shape, and the mold core 4 can extend from the top of the bottom mold 3; through the cone-shaped setting of the top of the mold core 4, a cone-shaped nozzle can be formed in the middle of the molded nozzle brick. When the nozzle brick is pressed and formed, the output end of the driving member 5 continues to extend, and the mold core 4 pushes the molded nozzle brick in the bottom mold 3 to be ejected from the bottom mold 3, and the molded nozzle brick sleeved on the top of the mold core 4 can be unloaded.

[0034] A first collecting tray 14 is installed at the bottom of the lower mold support seat 2, and the vertical tube 10 is located above the first collecting tray 14; the first collecting tray 14 can collect the falling materials discharged from the material guide pipe to avoid the falling materials from scattering everywhere, ensuring that the equipment is clean and tidy; and it is convenient to clean up the falling materials collected in the first collecting tray 14.

[0035] A second collecting tray 20 is sleeved on the outer wall of the bottom mold 3, and an inclined annular slope portion 21 is provided on the upper part of the bottom mold 3; the second collecting tray 20 is detachably installed on the bottom mold 3; the second collecting tray 20 can collect the falling materials at the top of the bottom mold 3, and the inclined annular slope portion 21 improves the smoothness of the falling materials at the top of the bottom mold 3, and under the action of inertia, the falling materials fall along the inclined annular slope portion 21 away from the center of the bottom mold 3, effectively reducing the falling materials from entering the gap between the second collecting tray 20 and the bottom mold 3, thereby improving the collection rate of the falling materials at the top of the bottom mold 3, collecting the falling materials for secondary use, and reducing the waste of falling materials.

[0036] In this embodiment, the material collection piece 7 is integrally formed with the mold core 4, and there is no gap between the material collection piece 7 and the mold core 4; in another embodiment, the material collection piece 7 is detachably connected to the mold core 4, and the inner diameter of the material collection piece 7 is smaller than the inner diameter of the mold core 4, that is, the gap between the material collection piece 7 and the mold core 4 is hidden in the interior of the mold core 4, so as to prevent the material from continuing to fall through the gap between the mold core 4 and the material collection piece 7, so as to achieve thorough collection of the material.

[0037] The top of the mold core 4 extends into the mold cavity and is in the shape of a cone. The guide tube in this embodiment is divided into an inclined tube 9 and a vertical tube 10 which are interconnected. A conical protrusion 11 is provided in the material collection piece 7. The inclined tube 9 extends into the material collection trough 8. A material guide groove 12 which coincides with the central axis of the inclined tube 9 is provided on the inclined slope of the conical protrusion 11. The material guide groove 12 is communicated with the inside of the inclined tube 9. The expansion cylinder 6 is provided with a slide groove 13 which allows the guide tube to slide up and down. When a certain amount of material is collected in the material collection trough 8, the material is swept into the inclined tube 9 by an external brush, etc. Under the action of gravity, this part of the material falls along the inclined tube 9 and the vertical tube 10, and the operator can collect the material at the bottom of the vertical tube 10.

[0038] The setting of the conical protrusion 11 can make the blanks that fall into the blank collecting piece 7 enter the material guide pipe more smoothly under the action of gravity, so that the blanks in the trough 8 can completely enter the material guide pipe, reducing the residual blanks in the blank collecting piece 7; the slide groove 13 can allow the material guide pipe to slide vertically up and down, while allowing external cold air to enter the expansion tube 6, and the core 4 is in full contact with the external cold air during the up and down movement, which can effectively improve the heat dissipation effect of the core 4, reduce the stability of the core 4, avoid deformation or excessive wear of the core 4 due to excessive temperature during the up and down movement, and ensure the pressing accuracy of the nozzle brick.

[0039] A cleaning brush is rotatably installed at the bottom of the bottom mold 3, and the cleaning brush includes a ring cylinder 15 and bristles 16. A conical cavity that fits with the conical protrusion 11 is provided in the ring cylinder 15, and the bristles 16 are arranged in the conical cavity; when the blanks are gathered to a certain amount at the conical protrusion 11 of the blank collecting piece 7, the driving piece 5 drives the mold core 4 to move upward, so that the conical protrusion 11 completely enters the conical cavity in the ring cylinder 15, and the bristles 16 contact with the conical protrusion 11. By rotating the ring cylinder 15, the bristles 16 sweep the blanks attached to the conical protrusion 11 into the guide groove 12. The blanks concentrated in the guide groove 12 are discharged through the guide pipe under the action of gravity, thereby improving the convenience of cleaning the blanks in the blank collecting piece 7 and further reducing the residual blanks in the blank collecting piece 7.

[0040] A rotary driver for driving the cleaning brush to rotate is installed on the outer wall of the expansion cylinder 6; the rotary driver includes a driving motor 17 fixedly installed on the expansion cylinder 6 and a driving wheel 18 fixedly installed on the output end of the driving motor 17. The expansion cylinder 6 is provided with a through hole that penetrates inside and outside, and the driving wheel 18 extends into the expansion cylinder 6 from the through hole and is connected to the outer wall of the ring cylinder 15. The driving motor 17 drives the driving wheel 18 to rotate, and the driving wheel 18 drives the ring cylinder 15 to rotate, so as to realize the rotation drive of the cleaning brush, and the automatic cleaning of the falling materials in the falling material collecting part 7 can be realized without manual work, further improving the convenience of cleaning the falling materials.

[0041] In other embodiments, the rotation driver may also adopt a drive motor 17 and a transmission gear or a transmission belt. The output end of the drive motor 17 drives the ring cylinder 15 to rotate through the transmission gear or the transmission belt to realize the rotation drive of the cleaning brush.

[0042] The first collecting tray 14 is detachably mounted on the lower die support seat 2, the inclined tube 9 is divided into a first tube portion and a second tube portion, a pipe joint 19 is installed between the first tube portion and the second tube portion, and the first tube portion and the second tube portion are detachably connected through the pipe joint 19; further, the first collecting tray 14 can be screwed on the lower die support seat 2, and the first collecting tray 14 can also be detachably mounted on the lower die support seat 2 by bolts or the like; when it is necessary to clean the dropped material in the first collecting tray 14, the first tube portion and the second tube portion on the inclined tube 9 are detached from each other, and the first collecting tray 14 is lifted up from top to bottom, so that the first collecting tray 14 can be completely detached from the lower die support seat 2, so that the dropped material can be directly poured out from the first collecting tray 14; by detaching the second tube portion and the vertical tube 10, interference of the material guide tube with the disassembly of the first collecting tray 14 can be avoided.

[0043] A driving cylinder 22 is installed on the upper part of the frame 1, and an upper mold 23 is installed at the output end of the driving cylinder 22; the driving cylinder 22 can be a hydraulic cylinder or a pneumatic cylinder. After the raw material is placed into the bottom mold 3, the driving member 5 and the output end of the driving cylinder 22 extend synchronously, the upper mold 23 moves down and covers the top of the bottom mold 3, and the mold core 4 squeezes the raw material between the upper mold 23 and the lower mold, so that the nozzle brick is pressed into shape.

[0044] In this embodiment, there are at least two groups of guide pipes, which can improve the smoothness of the discharge of the blanks in the blank collecting part 7 and shorten the discharge time of the blanks in the blank collecting part 7. The guide pipe is preferably an anti-corrosion metal pipe or plastic pipe with a certain elasticity. By bouncing the guide pipe, the guide pipe can be in a vibrating rotation to improve the discharge smoothness of the blanks in the guide pipe and reduce the residual blanks in the guide pipe; at the same time, it is prevented that the blanks that fall to the upper part of the guide pipe during the pressing process of the nozzle brick are accumulated in the guide pipe.

[0045] When in use, the raw material is placed in the bottom mold 3, the driving member 5 drives the mold core 4 to move upward, and the driving cylinder 22 drives the upper mold 23 to move downward, so that the raw material is extruded and formed in the closed mold cavity formed between the bottom mold 3 and the upper mold 23. During the pressing process of the nozzle brick, the material on the top of the bottom mold 3 falls into the second collecting plate 20 for collection, and the material falling through the gap between the bottom mold 3 and the mold core 4 falls to the conical protrusion 11 in the material collection member 7. After the material is collected to a certain amount in the conical protrusion 11 and the collecting groove 8, the driving cylinder 22 drives the upper mold 23 to move downward, so that the raw material is extruded and formed in the closed mold cavity formed between the bottom mold 3 and the upper mold 23. Part 5 drives the mold core 4 to move upward, so that the conical protrusion 11 completely enters the conical cavity in the ring tube 15, and the bristles 16 contact the conical protrusion 11. The ring tube 15 is driven to rotate by the rotating driver, and the bristles 16 sweep the blanks attached to the conical protrusion 11 and the blanks in the collecting trough 8 into the guide trough 12. The blanks concentrated in the guide trough 12 are discharged to the first collecting tray 14 through the guide pipe under the action of gravity. The blanks collected in the first collecting tray 14 and the second collecting tray 20 can be cleaned and reused.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A nozzle brick mold, characterized in that: The invention comprises a frame (1), a lower die support seat (2) fixedly mounted on the frame (1), a bottom die (3) fixedly mounted on the top of the lower die support seat (2), a mold core (4) slidably mounted in the bottom die (3) and the lower die support seat (2), and a driving member (5) providing power for the mold core (4) to move up and down, wherein a mold cavity is provided in the bottom die (3) and matches with the outer wall of the mold core (4), and a blanking removal component for blanking out is provided on the lower die support seat (2); The blanking assembly comprises an expanding cylinder (6) and a blanking collection piece (7) fixedly mounted on the outer wall of the mold core (4); the blanking collection piece (7) is slidably mounted in the expanding cylinder (6); the inner diameter of the expanding cylinder (6) is larger than the inner diameter of the lower mold support seat (2); one end of the expanding cylinder (6) is fixedly connected to the bottom mold (3); the other end of the expanding cylinder (6) is fixedly connected to the lower mold support seat (2); the outer diameter of the blanking collection piece (7) is larger than the inner diameter of the mold cavity of the bottom mold (3); and a collection groove (8) is provided in the blanking collection piece (7); It also includes a material guide pipe, the material guide pipe extends from the central axis of the mold core (4) to a side away from the center of the mold core (4), the material guide pipe is divided into an inclined pipe (9) and a vertical pipe (10) that are interconnected, the falling material collection piece (7) is provided with a conical protrusion (11), the inclined pipe (9) extends into the collection trough (8), and a material guide groove (12) that coincides with the central axis of the inclined pipe (9) is provided on the inclined slope of the conical protrusion (11); the material guide groove (12) is communicated with the inside of the inclined pipe (9); the expansion cylinder (6) is provided with a slide groove (13) that allows the material guide pipe to slide up and down; A cleaning brush is rotatably mounted on the bottom of the bottom mold (3), the cleaning brush comprising a ring cylinder (15) and bristles (16), a conical cavity matching the conical protrusion (11) is provided in the ring cylinder (15), and the bristles (16) are arranged in the conical cavity; A rotary driver for driving the cleaning brush to rotate is mounted on the outer wall of the expansion cylinder (6); the rotary driver comprises a drive motor (17) fixedly mounted on the expansion cylinder (6) and a drive wheel (18) fixedly mounted on the output end of the drive motor (17); a through opening extending through the inside and outside of the expansion cylinder (6); the drive wheel (18) extends from the through opening into the expansion cylinder (6) and is drivingly connected to the outer wall of the annular cylinder (15).

2. The nozzle brick mold according to claim 1, characterized in that: A first material collecting tray (14) is installed at the bottom of the lower die support seat (2), and the vertical pipe (10) is located above the first material collecting tray (14).

3. The nozzle brick mold according to claim 2, characterized in that: The first collecting plate (14) is detachably mounted on the lower die support seat (2); the inclined tube (9) is divided into a first tube portion and a second tube portion; a pipe joint (19) is installed between the first tube portion and the second tube portion; the first tube portion and the second tube portion are detachably connected via the pipe joint (19).

4. The nozzle brick mold according to claim 2 or 3, characterized in that: A second material collecting tray (20) is sleeved on the outer wall of the bottom mold (3), and an inclined annular slope portion (21) is provided on the upper portion of the bottom mold (3); the second material collecting tray (20) is detachably mounted on the bottom mold (3).

5. The nozzle brick mold according to claim 1, characterized in that: The material guiding pipes are at least two groups.

6. The nozzle brick mold according to claim 1, characterized in that: A driving cylinder (22) is installed on the upper part of the frame (1), and an upper die (23) is installed on the output end of the driving cylinder (22).

7. The nozzle brick mold according to claim 1, characterized in that: The top of the mold core (4) is in a conical shape, and the mold core (4) can extend from the top of the bottom mold (3).

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