Alumina fiber preform forming mold

Abstract

The utility model discloses an alumina fiber preform forming die which comprises a bottom plate, fixed longitudinal plates are symmetrically and fixedly arranged on the bottom plate, and a plurality of water filtering holes are formed in the fixed longitudinal plates; mounting plates are fixedly arranged on the two sides of the bottom plate, movable transverse plates are symmetrically arranged on the mounting plates, the movable transverse plates are driven by adjusting assemblies to move, and the movable transverse plates and the fixed longitudinal plates define an area used for forming aluminum oxide fibers; according to the utility model, through the arrangement of the water filtering holes in the pressing plate and the fixed longitudinal plate and the water chute in the bottom plate, water in the pasty alumina fiber can be fully extruded out; a supporting block is arranged on one side of the movable transverse plate, it is guaranteed that the stability of the movable transverse plate can be further guaranteed in the pulpy alumina fiber water squeezing process, the alumina fibers entering the water filtering holes can be cleaned through the arrangement of a cleaning plate and cleaning needles on the cleaning plate, and the smoothness of the water filtering holes is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to alumina fiber production technical field, specifically is a kind of alumina fiber preform forming die. BACKGROUND

[0002] Alumina fiber is a polycrystalline inorganic fiber with main component of alumina, and it also contains about 5% of silicon dioxide to stabilize the crystal phase and inhibit the growth of crystal grains at high temperature. Alumina fiber is one of the latest ultra-light high-temperature insulation materials at home and abroad, which uses high-tech "sol-gel" method to make soluble aluminum and silicon salts into colloidal solution with certain viscosity. The solution is spun into fiber embryo by high-speed centrifugation, and then is dehydrated, dried and heat-treated at medium and high temperature to crystallize, etc. The fiber is transformed into Al-Si alumina polycrystalline fiber, with main crystal phase of corundum and a small amount of mullite, and chemical composition of Al2O3 (95%) + SiO2 (5%). The fiber diameter is 3-7 um, the single filament length is 10-150 mm, and the appearance is white, smooth, soft, elastic and like defatted cotton. It combines the properties of crystal materials and fiber materials, with use temperature up to 1450℃-1600℃, melting point up to 1840℃, good heat stability, thermal conductivity 1 / 6 of ordinary refractory bricks, bulk density 1 / 25 of ordinary refractory bricks, and energy saving rate up to 15-45%.

[0003] However, the prior art still has great deficiencies, such as:

[0004] Alumina fiber plates are usually made by putting slurry-like alumina fiber into a preform forming die for extrusion molding. In order to facilitate transportation, the alumina fiber preform in the prior art is usually in the form of a square block. The most important thing in the extrusion molding process is to extrude the water in the alumina fiber, so that the alumina fiber can be shaped. However, how to ensure that the water can be further extruded while ensuring that the alumina fiber is in a specific shape is a problem. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an alumina fiber preform forming die to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An alumina fiber preform forming die, comprising a bottom plate, a plurality of fixed longitudinal plates are symmetrically fixed on the bottom plate, and a plurality of water filtering holes are formed in the fixed longitudinal plates.

[0008] Two sides of the bottom plate are fixedly provided with mounting plates, symmetrically provided with movable cross plates on the mounting plates, the movable cross plates are driven to move by adjusting assemblies, and the movable cross plates and the fixed vertical plates surround a region for forming the aluminum oxide fibers.

[0009] The bottom plate is provided with a track groove outside the fixed vertical plate, the track groove is movably provided with a track block inside, the track block is fixedly provided with a cleaning plate, one side of the cleaning plate close to the fixed vertical plate is fixedly provided with a push plate, and a plurality of cleaning needles are fixedly provided on the cleaning plate and correspond to the water filtering holes.

[0010] Preferably, the adjusting assembly comprises a stress plate fixedly provided on the mounting plate, a threaded hole is formed in the stress plate, a threaded rod is movably arranged in the threaded hole, one end of the threaded rod is fixedly connected with the movable cross plate, and a rotating disc is fixedly arranged at the end of the threaded rod away from the movable cross plate.

[0011] Preferably, one side of the movable cross plate close to the threaded rod is provided with an adjusting groove, a supporting block is movably clamped in the adjusting groove, and the side surface of the supporting block is triangular.

[0012] Preferably, an anti-skid piece is fixedly arranged at the bottom of the supporting block, the supporting block is provided with two supporting blocks and is symmetrically arranged with the threaded rod as the symmetric axis, and the bottom of the supporting block movably contacts with the mounting plate and the bottom plate.

[0013] Preferably, the longitudinal height of the supporting block is not less than half of the height of the movable cross plate, and the distance between the two supporting blocks is not greater than half of the length of the movable cross plate.

[0014] Preferably, the fixed vertical plate is symmetrically provided with mounting grooves, vertical rods are movably clamped in the mounting grooves, and a filter screen is fixedly arranged between the two vertical rods.

[0015] Preferably, the anti-skid piece is a rubber piece, a plurality of water guide grooves are formed in the two sides of the bottom plate, and the depth of the water guide grooves is not greater than one centimeter.

[0016] Preferably, a water passing groove is formed in one side of the bottom plate close to the cleaning plate of the fixed vertical plate, the length of the cleaning needle is not less than twice the thickness of the fixed vertical plate, and a scale line is arranged on the fixed vertical plate.

[0017] Preferably, a plurality of pressing plates of different sizes are movably arranged above the bottom plate.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1. The water in the slurry-like aluminum oxide fiber can be fully squeezed out by the setting of the water filtering hole on the pressing plate and the fixed longitudinal plate and the water guide groove on the bottom plate, and the water guide groove on the bottom plate is shallow in depth and does not affect the forming of the aluminum oxide fiber plate;

[0020] 2. The support block is arranged on one side of the movable cross plate, so that the stability of the movable cross plate can be further ensured during the water squeezing process of the slurry-like aluminum oxide fiber, and the size of the finally formed sample can be controlled and adjusted through the setting of the movable cross plate;

[0021] 3. The setting of the cleaning plate and the cleaning needle on the cleaning plate can clean the aluminum oxide fiber entering the water filtering hole, so as to ensure the smoothness of the water filtering hole. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0023] Figure 2 It is a bottom plate three-dimensional structure schematic view of the utility model;

[0024] Figure 3 It is an adjusting assembly three-dimensional structure schematic view of the utility model;

[0025] Figure 4 It is a vertical rod and filter screen three-dimensional structure schematic view of the utility model;

[0026] Figure 5 It is a fixed longitudinal plate three-dimensional structure schematic view of the utility model.

[0027] In the drawing: 1, bottom plate; 2, fixed longitudinal plate; 201, scale line; 3, water filtering hole; 4, mounting plate; 5, movable cross plate; 6, track groove; 7, track block; 8, cleaning plate; 9, push plate; 10, cleaning needle; 11, stress plate; 12, threaded hole; 13, threaded rod; 14, rotating disc; 15, adjusting groove; 16, support block; 17, anti-skid piece; 18, mounting groove; 19, vertical rod; 20, filter screen; 21, water guide groove; 22, water through groove; 23, pressing plate. DETAILED DESCRIPTION

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

[0029] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0030] An alumina fiber preform forming die, comprising a bottom plate 1, a fixed longitudinal plate 2 is symmetrically arranged on the bottom plate 1, and a plurality of water filtering holes 3 are arranged on the fixed longitudinal plate 2;

[0031] The fixed longitudinal plate 2 in the embodiment is provided with two, which are arranged on the bottom plate 1, and the water filtering holes 3 on the fixed longitudinal plate 2 are provided with multiple groups, which are used for water to be discharged through the water filtering holes 3 when the water in the alumina fiber between the two fixed longitudinal plates 2 is extruded subsequently;

[0032] The installation plate 4 is fixedly arranged on both sides of the bottom plate 1, the movable transverse plate 5 is symmetrically arranged on the installation plate 4, the movable transverse plate 5 is driven to move by the adjusting assembly, the movable transverse plate 5 and the fixed longitudinal plate 2 enclose an area for forming the alumina fiber, and a plurality of size pressing plates 23 are movably arranged above the bottom plate 1;

[0033] The movable transverse plate 5 in the embodiment is also provided with two and arranged on the installation plate 4, and can move to between the two fixed longitudinal plates 2 under the action of the adjusting assembly, so as to form a square space with the fixed longitudinal plate 2, for pouring the subsequent water slurry alumina fiber which needs to be formed into the inside, and the size of the pressing plate 23 is not infinite, but several sizes commonly used on the market.

[0034] The track groove 6 is arranged on the outer side of the fixed longitudinal plate 2, the track block 7 is movably arranged in the track groove 6, the cleaning plate 8 is fixedly arranged on the track block 7, the push plate 9 is fixedly arranged on the side of the cleaning plate 8 close to the fixed longitudinal plate 2, a plurality of cleaning needles 10 are fixedly arranged on the cleaning plate 8, and the cleaning needles 10 correspond to the water filtering holes 3.

[0035] In the embodiment, it is considered that in the process of extruding the water slurry alumina fiber, not only water will be discharged through the water filtering holes 3, but also part of the alumina fiber will enter the inside of the water filtering holes 3 and block the water filtering holes 3, so that the filtering property of the water filtering holes 3 is affected, therefore, the track groove 6 is arranged on the outer side of the fixed longitudinal plate 2 in the bottom plate 1, the cleaning plate 8 is positioned by the track block 7, when the water filtering holes 3 are blocked, the cleaning plate 8 can be pushed by the operator, and the cleaning needles 10 can correspondingly extend into the inside of the water filtering holes 3 to dredge the water filtering holes 3 and ensure the smoothness, and this process will occur many times in the whole extrusion process, and it needs to be explained that the upper side of the fixed longitudinal plate 2 has a certain stroke without the water filtering holes 3, so that the cleaning needles 10 will not contact the pressing plate 23 even in the later stage of the water extrusion;

[0036] The adjusting assembly comprises a force receiving plate 11 fixedly arranged on the mounting plate 4, a threaded hole 12 is formed in the force receiving plate 11, a threaded rod 13 is movably arranged in the threaded hole 12, one end of the threaded rod 13 is fixedly connected with the movable horizontal plate 5, and a rotating disc 14 is fixedly arranged at the end of the threaded rod 13 away from the movable horizontal plate 5.

[0037] The force receiving plate 11 in the embodiment is arranged on the mounting plate 4 as a fixed plate, a threaded hole 12 is formed in the force receiving plate 11, the threaded rod 13 passes through the threaded hole 12, and the threaded rod 13 is fixedly connected with the movable horizontal plate 5. An operator rotates the rotating disc 14 to adjust the position of the movable horizontal plate 5. This operation is performed before water squeezing, and the size of the alumina fiber prefabricated plate to be manufactured is determined in advance. The size is determined by adjusting the movable horizontal plate 5.

[0038] An adjusting groove 15 is formed in the side of the movable horizontal plate 5 close to the threaded rod. A supporting block 16 is movably arranged in the adjusting groove 15. The supporting block 16 is triangular in shape. Anti-skid pieces 17 are fixedly arranged on the bottom of the supporting block 16. Two supporting blocks 16 are symmetrically arranged with the threaded rod 13 as the axis of symmetry. The bottom of the supporting block 16 movably contacts the mounting plate 4 and the bottom plate 1. The anti-skid pieces 17 are rubber pieces.

[0039] The supporting block 16 in the embodiment is clamped in the adjusting groove 15. When the position of the movable horizontal plate 5 is determined, an operator presses the supporting block 16. At this time, the bottom of the supporting block 16 contacts the bottom plate 1. In this way, the stability of the movable horizontal plate 5 can be further ensured during water squeezing. The stability of the supporting block 16 is further ensured by the arrangement of the anti-skid pieces 17, and the stability of the movable horizontal plate 5 is further maintained.

[0040] The longitudinal height of the supporting block 16 is not less than half the height of the movable horizontal plate 5, and the distance between the two supporting blocks 16 is not greater than half the length of the movable horizontal plate 5.

[0041] The height of the supporting block 16 and the distance between the two supporting blocks 16 are limited, so that the two supporting blocks 16 can achieve better stability.

[0042] Symmetrical mounting grooves 18 are formed in the fixed vertical plate 2. Vertical rods 19 are movably arranged in the mounting grooves 18. A filter screen 20 is fixedly arranged between the two vertical rods 19.

[0043] The filter screen 20 arranged on the inner side of the fixed vertical plate 2 in the embodiment can be disassembled. The filter screen 20 can further ensure that the alumina fiber does not flow during water squeezing. The disassembled arrangement also enables the filter screen 20 to be replaced and cleaned in time.

[0044] A plurality of water guide grooves 21 are formed in the two sides of the mounting plate 4. The depth of the water guide grooves 21 is not greater than one centimeter.

[0045] In order to better drainage, a plurality of water guide grooves 21 are formed in the bottom of the bottom plate 1, and the water guide grooves 21 are distributed on both sides of the mounting plate 4, so that the water guide property of the water guide grooves 21 can be ensured.

[0046] The water passing groove 22 is formed in the bottom plate 1 on the side of the fixed vertical plate 2 close to the cleaning plate 8, the length of the cleaning needle 10 is not less than twice the thickness of the fixed vertical plate 2, and the fixed vertical plate 2 is provided with a scale line 201.

[0047] The water passing groove 22 further ensures that the water from the water filtering hole 3 can be technically discharged and will not remain on the bottom plate 1, and the scale line 201 on the fixed vertical plate 2 also enables the operator to more certainly adjust the position of the movable horizontal plate 5;

[0048] Working principle: in the process of using the device, the operator first determines the size of the alumina fiber plate to be made, after determining the size, the position of the movable horizontal plate 5 is adjusted by rotating the rotating disc 14 under the action of the threaded rod 13 and the threaded hole 12, and the scale line 201 on the fixed vertical plate 2 can play a positioning role in the adjusting process.

[0049] When the position of the movable horizontal plate 5 is adjusted and fixed, the operator presses the supporting block 16 at this time, so that the anti-skid piece 17 at the bottom of the supporting block 16 is in contact with the bottom plate 1, and the stability of the movable horizontal plate 5 is ensured.

[0050] At this time, the operator pours the water slurry-like alumina fiber into the area surrounded by the movable horizontal plate 5 and the fixed vertical plate 2, and then presses the cover plate of the appropriate size on the top, so that under the action of the weight of the cover plate, the water in the water slurry-like alumina fiber flows out through the water filtering hole 3 and the water guide groove 21.

[0051] If the water filtering hole 3 is blocked by the alumina fiber in the process, the operator pushes the cleaning plate 8 to drive the cleaning needle 10 to dredge the water filtering hole 3.

[0052] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A forming mold for an alumina fiber preform comprising a base plate (1), characterized in that: A fixed longitudinal plate (2) is symmetrically fixed on the base plate (1), and a plurality of filter holes (3) are opened on the fixed longitudinal plate (2). Mounting plates (4) are fixedly installed on both sides of the base plate (1). Movable horizontal plates (5) are symmetrically arranged on the mounting plates (4). The movable horizontal plates (5) are driven to move by the adjustment component. The movable horizontal plates (5) and the fixed vertical plates (2) form an area for forming alumina fibers. The base plate (1) is provided with a track groove (6) on the outside of the fixed longitudinal plate (2). A track block (7) is movably arranged inside the track groove (6). A cleaning plate (8) is fixedly arranged on the track block (7). A push plate (9) is fixedly arranged on the side of the cleaning plate (8) close to the fixed longitudinal plate (2). A number of cleaning needles (10) are fixedly arranged on the cleaning plate (8). The cleaning needles (10) correspond to the water filter holes (3).

2. The forming die for alumina fiber preforms according to claim 1, characterized in that: The adjustment assembly includes a force plate (11) fixedly mounted on the mounting plate (4). The force plate (11) has a threaded hole (12). A threaded rod (13) moves through the threaded hole (12). One end of the threaded rod (13) is fixedly connected to the movable horizontal plate (5). A rotating disk (14) is fixedly mounted on the end of the threaded rod (13) away from the movable horizontal plate (5).

3. An alumina fiber preform forming die according to claim 2, characterized by: The movable horizontal plate (5) has an adjustment groove (15) on the side near the threaded rod. A support block (16) is movably locked inside the adjustment groove (15). The side of the support block (16) is triangular.

4. An alumina fiber preform forming die according to claim 3, characterized by: The bottom of the support block (16) is fixedly provided with an anti-slip plate (17). There are two support blocks (16) and they are symmetrically arranged with the threaded rod (13) as the axis of symmetry. The bottom of the support block (16) is in contact with the mounting plate (4) and the base plate (1).

5. An alumina fiber preform forming die according to claim 3, wherein: The longitudinal height of the support block (16) is not less than half the height of the movable horizontal plate (5), and the distance between the two support blocks (16) is not greater than half the length of the movable horizontal plate (5).

6. The forming die for alumina fiber preforms according to claim 1, wherein: The fixed longitudinal plate (2) is symmetrically provided with mounting grooves (18), and vertical rods (19) are movably mounted inside the mounting grooves (18). A filter screen (20) is fixedly installed between the two vertical rods (19).

7. An alumina fiber preform forming die according to claim 5, wherein: The anti-slip sheet (17) is a rubber sheet. The base plate (1) is provided with several water guide grooves (21) on both sides of the mounting plate (4). The depth of the water guide grooves (21) is no more than one centimeter.

8. An alumina fiber preform forming mold according to claim 7, characterized by: The bottom plate (1) is located on the side of the fixed longitudinal plate (2) near the cleaning plate (8) with a water passage groove (22). The length of the cleaning needle (10) is not less than twice the thickness of the fixed longitudinal plate (2). The fixed longitudinal plate (2) is provided with a scale line (201).

9. The forming die for alumina fiber preforms according to claim 1, wherein: Several pressure plates (23) of various sizes are movably arranged above the base plate (1).

Images