Auxiliary die changing device for magnesia carbon bricks

Abstract

The utility model discloses an auxiliary die changing device for magnesia carbon bricks, and relates to the technical field of magnesia carbon brick compression molding. The pressing device comprises a base, a mounting box and a pushing electric push rod are mounted on the base, a supporting frame is mounted on the mounting box, a pressing assembly is mounted on the supporting frame, clamping assemblies are mounted on the four edges of the inner wall of the mounting box, and fixing assemblies are mounted on the four edges of the outer surface of the mounting box. According to the utility model, the lower die assemblies with different sizes in the clamping assembly are mounted at the axis positions of the mounting boxes, and the position of the clamping assembly is fixed by the fixing assembly, so that the pressing die can be flexibly and quickly replaced, the device is suitable for the pressing and forming work of magnesia carbon bricks with more sizes, the manpower and time are saved, and the production efficiency is improved. And the pressed and formed magnesia carbon bricks can be pushed out of the mold through the material pushing electric push rod, so that manual taking is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of the pressing forming of magnesia-carbon bricks. Specifically, it particularly relates to an auxiliary die-changing device for magnesia-carbon bricks. Background Art

[0002] Magnesia-carbon bricks are unburned carbon composite refractory materials made from high-melting-point basic oxide magnesia (melting point 2800°C) and high-melting-point carbon materials that are difficult to be infiltrated by slag, adding various non-oxide additives and bonded with a carbonaceous binder. Magnesia-carbon bricks are mainly used for the inner linings of converters, AC arc furnaces, DC arc furnaces, and the slag lines of ladles, etc. As a composite refractory material, magnesia-carbon bricks effectively utilize the strong slag erosion resistance of magnesia sand, the high thermal conductivity and low expansibility of carbon, and compensate for the biggest shortcoming of poor spalling resistance of magnesia sand.

[0003] The manufacturing process of magnesia-carbon bricks mainly includes mixing, pressing forming, baking, graphitization, and heat treatment. When pressing and forming them, a forming device is usually used for pressing and forming. In actual production, magnesia-carbon bricks of different sizes usually need to be pressed. However, in the existing pressing devices, the pressing dies cannot be flexibly replaced, making them inapplicable to more size pressing operations, and it also makes the replacement work time-consuming and laborious, reducing production efficiency.

[0004] In view of the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0005] In view of the problems in the related art, the utility model provides an auxiliary die-changing device for magnesia-carbon bricks to overcome the above technical problems existing in the existing related art.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model provides an auxiliary die-changing device for magnesia-carbon bricks, which includes a base. An installation box and a pushing electric push rod are installed on the base. A support frame is installed on the installation box, and a pressing assembly is installed on the support frame. Clamping assemblies are installed on the four sides of the inner wall of the installation box, and fixing assemblies are installed on the four sides of the outer surface of the installation box;

[0008] The clamping assembly is used to fix the lower die assembly at the central axis position inside the installation box. The fixing assembly is used to fix the clamping assembly. The pressing assembly can drive the upper cover plate to move downward to press the lower die assembly, completing the pressing work of magnesia-carbon bricks. And the pushing electric push rod can push out the pressed magnesia-carbon bricks from the lower die assembly.

[0009] Further, the clamping assembly includes clamping plates which are all installed inside the installation box. Four sides of the bottom surface of the installation box are respectively provided with sliding grooves, and the lower ends of the clamping plates can respectively be in sliding fit with the sliding grooves. Sliding columns are installed on the clamping plates, and one ends of the sliding columns can respectively penetrate through one side of the installation box and extend to the outside. First springs are all installed around the sliding columns.

[0010] Further, the fixing assembly includes fixing plates which are all installed on the outer surface of the installation box. Fixing rods are respectively installed through and slidably on the fixing plates. Fixing teeth are installed at the lower ends of the fixing rods. Second springs are all installed around the fixing rods. A plurality of tooth grooves are respectively formed on the sliding columns, and the fixing teeth are meshed with the tooth grooves.

[0011] Further, the fixing assembly includes connecting rings which are all installed at the upper ends of the fixing rods to connect the four fixing rods. Handles are installed on both sides of each connecting ring.

[0012] Further, the pressing assembly includes a pressing electric push rod which is installed on the support frame. A convex block is fixedly installed at the telescopic end of the pressing electric push rod. A concave block is installed on the upper surface of the upper cover plate. The pressing assembly further includes a bolt which can penetrate through the convex block and the concave block at the same time to connect them. A nut is threadedly installed at one end of the bolt.

[0013] Further, the lower mold assembly includes a mold shell. A bottom plate is slidably installed inside the mold shell. The outer surface of the bottom plate is in close contact with the inner wall of the mold shell. The upper cover plate has the same size as the bottom plate.

[0014] Further, a touch plate is installed at the axis of the telescopic end of the material pushing electric push rod. A circular hole is penetrated through the axis position of the bottom surface of the installation box, and the touch plate can pass through the circular hole and contact the lower surface of the bottom plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, lower mold assemblies with different sizes are installed at the axis position of the installation box through the clamping assembly, and then the position of the clamping assembly is fixed by using the fixing assembly, so that the pressing molds can be replaced flexibly and quickly, which is applicable to the pressing and forming work of magnesia-carbon bricks with more sizes, saves manpower and time, and the pressed magnesia-carbon bricks can also be pushed out of the mold by the material pushing electric push rod, so as to facilitate manual taking and improve production efficiency.

[0017] 2. The utility model drives its four fixing rods to move upward by pulling the handle, so that its fixing teeth no longer fix its sliding column through the tooth groove, and the sliding column becomes active, so that it can slide in the slide groove, so that when the lower mold assembly is placed in its installation box, it will resist its clamping plate, so that its sliding column will slide, and drive its clamping plate to slide in the slide groove toward the four sides of the installation box, so that each clamping plate is against the surface of the lower mold assembly, and then the lower mold assembly is installed in the axial position of the installation box, and then the handle is no longer pulled, and the fixing rod is moved downward again under the elastic force of the second spring, and the fixing teeth enter the corresponding tooth groove again to fix the position of the clamping plate, so that the device can fix pressing molds of different sizes, which is convenient for replacement and installation, and is no longer limited to pressing magnesia-carbon bricks of the same size, thereby improving the usage scenario.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the installation box structure of the utility model;

[0022] Figure 3 This is the second schematic diagram of the installation box structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the pressing component of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the lower mold assembly of the utility model;

[0025] Figure 6 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Base; 2. Installation box; 3. Pushing electric push rod; 4. Support frame; 5. Pressing component; 6. Clamping component; 7. Fixing component; 8. Lower die component; 9. Upper cover plate; 10. Clamping plate; 11. Chute; 12. Sliding column; 13. First spring; 14. Fixed plate; 15. Fixed rod; 16. Fixed tooth; 17. Second spring; 18. Tooth groove; 19. Connecting ring; 20. Handle; 21. Pressing electric push rod; 22. Convex block; 23. Concave block; 24. Bolt; 25. Nut; 26. Die shell; 27. Bottom plate; 28. Touch plate; 29. Circular hole. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating orientations or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] Please refer to Figures 1-6 As shown in the figure, the present utility model is a magnesia-carbon brick auxiliary die-changing device, including a base, on which an installation box and a pushing electric push rod are installed. On the installation box, a support frame is installed, and on the support frame, a pressing component is installed. On the inner sides of the four sides of the installation box, clamping components are installed, and on the outer surfaces of the four sides of the installation box, fixing components are installed;

[0031] The clamping component is used to fix the lower die component at the central axis position inside the installation box. The fixing component is used to fix the clamping component. The pressing component can drive the upper cover plate to move downward to press the lower die component to complete the pressing work of magnesia-carbon bricks, and the pushing electric push rod can push the pressed magnesia-carbon bricks out of the lower die component.

[0032] In actual use, the lower mold assemblies of different sizes can be fixed at the axial position of their installation box through the clamping assembly, opposite to the position of their lower pressure plate, so that the clamping assembly is fixed in a fixed state through the fixing assembly, and the lower mold is firmly fixed in its installation box. The magnesium carbon brick raw material is poured into it, and the upper cover plate is driven by the pressing assembly to perform pressing operations in the lower mold assembly, thereby compacting the raw materials to form magnesium carbon bricks, and the pressed magnesium carbon bricks can be pushed out of the lower mold assembly by driving the electric push rod to complete the pressing and forming of the magnesium carbon bricks.

[0033] The utility model installs lower mold assemblies of different sizes in the axial center position of the installation box in the clamping assembly, and uses the fixing assembly to fix the position of the clamping assembly, so that the pressing mold can be flexibly and quickly replaced. It is suitable for the pressing and forming of magnesia carbon bricks of various sizes, saving manpower and time. The pressed magnesia carbon bricks can also be pushed out of the mold by the electric push rod for manual picking, thereby improving production efficiency.

[0034] In one embodiment, for the above-mentioned clamping assembly, the clamping assembly includes a clamping plate, and the clamping plates are all installed in the installation box. Slide grooves are opened on the four sides of the bottom surface of the installation box. The lower ends of the clamping plates can slide with the slide grooves respectively. Sliding columns are installed on the clamping plates, and one end of the sliding columns can pass through one side of the installation box and extend to the outside. The sliding columns are all surrounded by a first spring.

[0035] By installing clamping plates on the four sides of the installation box, it can slide in the corresponding slide grooves, so that when the lower mold assembly is placed in its installation box, it will resist its clamping plates, causing its sliding column to slide, and the first spring will contract, driving its clamping plates to slide in the slide grooves toward the four sides of the installation box, so that each clamping plate is against the surface of the lower mold assembly, and then the lower mold assembly is installed at the axial position of the installation box. When the lower mold assembly is removed, the first spring will release its elastic force and drive its clamping plates back to their original positions, so that the device can fix pressing molds of different sizes, which is convenient for replacement and installation, and is no longer limited to pressing magnesia-carbon bricks of the same size, thereby improving usage scenarios.

[0036] In one embodiment, for the above-mentioned fixing assembly, the fixing assembly includes a fixing plate, the fixing plates are installed on the outer surface of the installation box, the fixing plates are penetrated and slidably installed with fixing rods, the lower ends of the fixing rods are installed with fixing teeth, the fixing rods are surrounded by a second spring, the sliding columns are provided with a plurality of tooth grooves, and the fixing teeth are meshed with the tooth grooves.

[0037] By providing a toothed groove on the sliding column, installing a slidable fixing rod on its fixing plate, installing a second spring on the fixing rod, and installing a fixing tooth that fits the toothed groove at the lower end of the fixing rod, the fixing tooth can extend into the corresponding toothed groove through the second spring to fix the sliding column, preventing the clamping plate from moving and fixing its position. This further enables different-sized lower die components to be fixed in the installation box, expanding the range of applications.

[0038] In one embodiment, for the above-mentioned fixing component, the fixing component includes a connecting ring, which is installed at the upper end of the fixing rod to connect the four fixing rods, and handles are installed on both sides of the connecting ring.

[0039] When it is necessary to disassemble the lower die component, the handles can be pulled. Under the action of the connecting ring, the four fixing rods are simultaneously driven to move upward, so that the fixing teeth no longer fix the sliding column through the toothed groove, and the sliding column becomes movable again. As a result, the lower die component can be disassembled, and other die components can be replaced. Moreover, the connecting ring facilitates the worker to pull the four fixing rods simultaneously, saving time and effort and improving the installation and replacement speed.

[0040] In the present utility model, by pulling the handle to drive the four fixing rods to move upward, the fixing teeth no longer fix the sliding column through the toothed groove, and the sliding column becomes movable and can slide in the chute. When the lower die component is placed in the installation box, it will contact the clamping plate, causing the sliding column to slide and drive the clamping plate to slide along the chute towards the four sides of the installation box. As a result, each clamping plate abuts against the surface of the lower die component, and then the lower die component is installed at the central position of the installation box. Then, by no longer pulling the handle, the fixing rods move downward again under the elastic force of the second spring, and the fixing teeth enter the corresponding toothed grooves to fix the position of the clamping plate, enabling the device to fix pressing dies of different sizes, facilitating replacement and installation, and no longer being limited to pressing magnesia-carbon bricks of a single size only, thus expanding the range of applications.

[0041] In one embodiment, for the above-mentioned pressing component, the pressing component includes a pressing electric push rod, which is installed on the support frame. A convex block is fixedly installed at the telescopic end of the pressing electric push rod. A concave block is installed on the upper surface of the upper cover plate. The pressing component further includes a bolt that can penetrate through the convex block and the concave block simultaneously to connect them, and a nut is threadedly installed at one end of the bolt.

[0042] The upper cover plate can be fixed on the pressing electric push rod through the convex block, so that the pressing electric push rod can drive it to press down the raw materials in the lower die assembly that fits with it to form magnesia-carbon bricks. When the lower die assembly is replaced, the upper cover plate that fits with it also needs to be replaced. At this time, by rotating the nut, it is no longer thread-fitted on the bolt, and the bolt can be removed, so that the convex block and the concave block are no longer in a fixed connection state, and the upper cover plate can be replaced. After the replacement is successful, the upper cover plate can also be fixed on the pressing electric push rod through the bolt and the nut to perform the operation of pressing magnesia-carbon bricks.

[0043] In one embodiment, for the above-mentioned lower die assembly, the lower die assembly includes a die shell, a bottom plate is slidably installed in the die shell, the outer surface of the bottom plate is in close contact with the inner wall of the die shell, and the upper cover plate has the same size as the bottom plate.

[0044] By dividing the lower template into a die shell and a bottom plate, the pushing electric push rod can push the bottom plate and drive it to slide upward in the die shell, so as to push the formed magnesia-carbon bricks to the upper part, which is convenient for workers to take. And because the outer surface of the bottom plate is in close contact with the inner wall of the die shell, the pressing effect of the magnesia-carbon bricks can also be guaranteed.

[0045] In one embodiment, for the above-mentioned pushing electric push rod, a touch plate is installed at the center of the telescopic rod end of the pushing electric push rod, and a circular hole is penetrated through the center position of the bottom surface of the installation box, and the touch plate can pass through the circular hole and contact the lower surface of the bottom plate.

[0046] Drive the pushing electric push rod to drive the touch plate to move upward, pass through the circular hole and contact the bottom plate, so as to drive the bottom plate and make it slide upward in the die shell, and push the formed magnesia-carbon bricks to the upper part, which is convenient for workers to take.

[0047] In summary, with the help of the above-mentioned technical scheme of the utility model, by pulling the handle, the four fixing rods are driven to move upward at the same time under the action of the connecting ring, so that its fixing teeth no longer fix its sliding column through the tooth groove, and the sliding column becomes active again, so that it can slide in the slide groove, so that when the lower mold assembly is placed in its installation box, it will resist its clamping plate, so that its sliding column will slide, driving its clamping plate to slide in the slide groove to the four sides of the installation box, so that each clamping plate is against the surface of the lower mold assembly, and then the lower mold assembly is installed in the axial position of the installation box, and then the handle is no longer pulled, and the fixing rod is moved downward again under the elastic force of the second spring, and the fixing teeth enter the corresponding tooth groove again to fix the position of the clamping plate, and the handle can also be pulled so that its fixing teeth no longer fix its sliding column through the tooth groove, and the sliding column becomes active again, so that it no longer fixes its lower mold assembly, and it can be When the lower mold assembly is disassembled, the first spring will release its elastic force and drive the clamping plate back to its original position, so that the device can fix pressing molds of different sizes, which is convenient for replacement and installation. After replacing the lower mold assembly, the upper cover plate that matches it must also be replaced. At this time, the nut can be turned so that it is no longer threaded on the bolt, and the bolt can be removed, so that the convex block and the concave block are no longer in a fixed connection state, and the upper cover plate can be replaced. When the replacement is successful, the upper cover plate can also be fixed to the pressing electric push rod by bolts and nuts to press the magnesium-carbon brick. By dividing the lower template into a mold shell and a bottom plate, the pushing electric push rod can drive its touch plate to push the bottom plate through the circular hole, driving it to slide upward in the mold shell, thereby pushing the pressed magnesium-carbon brick to the upper part, which is convenient for workers to take. Moreover, because the outer surface of the bottom plate is in close contact with the inner wall of the mold shell, the pressing effect of the magnesium-carbon brick can also be guaranteed.

[0048] Through the above technical scheme, 1. The lower mold assemblies of different sizes are installed in the axial position of the installation box by the clamping assembly, and the position of the clamping assembly is fixed by the fixing assembly, so that the pressing mold can be flexibly and quickly replaced, which is suitable for the pressing and forming of magnesia carbon bricks of various sizes, saving manpower and time, and the pressed magnesia carbon bricks can also be pushed out of the mold by the electric push rod, so as to facilitate manual picking and improve production efficiency; 2. The four fixing rods are driven to move upward by pulling the handle, so that the fixing teeth no longer fix the sliding column through the tooth groove, and the sliding column becomes active, so that it can slide in the slide groove. The lower mold assembly moves, so that when the lower mold assembly is placed in its installation box, it will resist its clamping plate, causing its sliding column to slide, driving its clamping plate to slide in the slide groove to the four sides of the installation box, so that each clamping plate is against the surface of the lower mold assembly, and then the lower mold assembly is installed at the axial position of the installation box, and then the handle is no longer pulled, and the fixing rod is moved downward again under the elastic force of the second spring, and the fixing tooth enters the corresponding tooth groove again to fix the position of the clamping plate, so that the device can fix pressing molds of different sizes, which is convenient for replacement and installation, and is no longer limited to pressing magnesia-carbon bricks of the same size, thereby improving the usage scenario.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A magnesia carbon brick auxiliary mold changing device, comprising a base (1), characterized in that: The base (1) is provided with a mounting box (2) and a material pushing electric push rod (3); the mounting box (2) is provided with a support frame (4); the support frame (4) is provided with a pressing component (5); the four sides of the inner wall of the mounting box (2) are provided with clamping components (6); the four sides of the outer surface of the mounting box (2) are provided with fixing components (7); The clamping assembly (6) is used to fix the lower mold assembly (8) at the internal axial position of the installation box (2), and the fixing assembly (7) is used to fix the clamping assembly (6). The pressing assembly (5) can drive the upper cover plate (9) to move downward to press the lower mold assembly (8) to complete the pressing of the magnesium carbon brick, and the pusher electric push rod (3) can push the pressed magnesium carbon brick out of the lower mold assembly (8).

2. A magnesia carbon brick auxiliary mold changing device according to claim 1, characterized in that: The clamping assembly (6) comprises a clamping plate (10), and the clamping plate (10) is installed in the installation box (2). The bottom surface of the installation box (2) is provided with a slide groove (11) on four sides. The lower end of the clamping plate (10) can slide with the slide groove (11). The clamping plate (10) is installed with a sliding column (12). One end of the sliding column (12) can pass through one side of the installation box (2) and extend to the outside. The sliding column (12) is surrounded by a first spring (13).

3. A magnesia carbon brick auxiliary mold changing device according to claim 2, characterized in that: The fixing assembly (7) comprises a fixing plate (14), the fixing plates (14) are all mounted on the outer surface of the mounting box (2), a fixing rod (15) is penetrated and slidably mounted on the fixing plate (14), a fixing tooth (16) is mounted on the lower end of the fixing rod (15), a second spring (17) is mounted around the fixing rod (15), a plurality of tooth grooves (18) are formed on the sliding column (12), and the fixing teeth (16) are meshed with the tooth grooves (18).

4. A magnesia carbon brick auxiliary mold changing device according to claim 3, characterized in that: The fixing assembly (7) comprises a connecting ring (19), and the connecting ring (19) is installed on the upper end of the fixing rod (15) to connect the fixing rods (15) on four sides, and handles (20) are installed on both sides of the connecting ring (19).

5. A magnesia carbon brick auxiliary mold changing device according to claim 4, characterized in that: The pressing assembly (5) comprises a pressing electric push rod (21), the pressing electric push rod (21) is mounted on the support frame (4), a convex block (22) is fixedly mounted on the telescopic rod end of the pressing electric push rod (21), a concave block (23) is mounted on the upper surface of the upper cover plate (9), the pressing assembly (5) further comprises a bolt (24), the bolt (24) can simultaneously penetrate the convex block (22) and the concave block (23) to connect them, and a nut (25) is threadedly mounted on one end of the bolt (24).

6. A magnesia carbon brick auxiliary mold changing device according to claim 5, characterized in that: The lower mold assembly (8) comprises a mold shell (26), a bottom plate (27) is slidably mounted inside the mold shell (26), the outer surface of the bottom plate (27) is in close contact with the inner wall of the mold shell (26), and the upper cover plate (9) and the bottom plate (27) have the same size.

7. A magnesia carbon brick auxiliary mold changing device according to claim 6, characterized in that: A touch plate (28) is installed at the axis of the telescopic rod end of the push material electric push rod (3), and a circular hole (29) is opened through the axis position of the bottom surface of the installation box (2), and the touch plate (28) can pass through the circular hole (29) and contact the lower surface of the bottom plate (27).

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