Aluminum oxide ceramic product forming die

Abstract

The utility model discloses an aluminum oxide ceramic product forming die which comprises a die body, an elastic lining layer is arranged in the die body, supporting seats are arranged on the two sides of the bottom end of the die body, and a linkage shaft which is vertically distributed is arranged on the top of each supporting seat. A plurality of pull columns which penetrate through the mold body and are connected with the outer wall of the elastic lining layer are evenly arranged on the inner side of the linkage shaft, a supporting plate is arranged on the outer side of the supporting base, and an auxiliary demolding driving mechanism composed of a guide rod, a linkage plate and a control air cylinder is arranged on the supporting plate. A pressure control mechanism composed of a composite elastic telescopic pad and a pressure sensor is arranged between the supporting plate and the linkage plate. According to the aluminum oxide ceramic product forming mold, by optimizing the internal structural design, the demolding efficiency and the finished product quality are remarkably improved, the risks of surface damage and deformation of a green body are reduced, and meanwhile the production cost and the operation difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic manufacturing technical field, concretely is a kind of alumina ceramic product forming mould. BACKGROUND

[0002] In many high-tech fields such as electronics, aerospace, chemical industry, etc., alumina ceramics have a wide range of applications due to their excellent mechanical properties, high temperature resistance and chemical stability. In particular, when manufacturing ceramic products of specific shapes, such as tubular alumina ceramic products (e.g. high-temperature furnace tubes, special-purpose pipes, etc.), these materials become the ideal choice due to their outstanding corrosion resistance and thermal stability.

[0003] Currently, different types of ceramic products pose different challenges to the forming process. For tubular ceramic products, traditional forming methods and mold designs have significant demolding difficulties. The close contact between the tubular ceramic body and the inner wall of the mold can cause surface damage or deformation of the ceramic body during demolding, especially when dealing with long tubes or thin-walled tubes. This phenomenon not only affects the quality of the finished product but also reduces production efficiency and increases production costs. SUMMARY

[0004] The utility model aims to provide a kind of alumina ceramic product forming mould to solve the problem of demolding difficulty of tubular ceramic product in the actual application at present, easy to cause the surface damage or deformation of body.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of alumina ceramic product forming mould, including mould body, the inside of the mould body is provided with elastic inner lining, the both sides of the bottom end of the mould body are equipped with support seat, the top of the support seat is equipped with linkage shaft in vertical distribution, the inner side of the linkage shaft is evenly provided with a plurality of pull columns that are penetrated in the mould body and connected with the outer wall of elastic inner lining, and the outer side of the support seat is provided with support plate, the support plate is provided with the auxiliary demolding drive mechanism consisting of guide rod, linkage plate and control cylinder, and the pressure control mechanism consisting of composite elastic expansion pad and pressure sensor is arranged between the support plate and linkage plate.

[0006] Preferably, the guide rod is transversely penetrated in the bottom end of support plate and fixedly connected with the bottom end of linkage shaft, the control cylinder is fixed in the top end of support plate, the top end of linkage plate is fixedly connected with the output end of control cylinder, and the bottom end of linkage plate is also fixedly connected with the connection of guide rod.

[0007] Preferably, the bottom end of the support plate is embedded with a guide sleeve inside, and the guide rod is movably inserted into the inside of the guide sleeve.

[0008] Preferably, the support base is arc-shaped as a whole, and the curvature of the inner wall of the support base matches the curvature of the outer wall of the mold body.

[0009] Preferably, the outer wall of the bottom end of the mold body is welded with butt plates on both sides, and the butt plates and the support base are both surrounded by a plurality of butt screw holes.

[0010] Preferably, the elastic inner lining layer is a cylindrical structure made of polyurethane elastic material, and the gap between the elastic inner lining layer and the mold body is greater than 20 mm.

[0011] Compared with the prior art, the alumina ceramic product forming mold has the advantages that: the internal structure is optimized, the demolding efficiency and product quality are significantly improved, the risk of surface damage and deformation of the blank is reduced, and the production cost and operation difficulty are reduced. The alumina ceramic product forming mold is designed with an elastic inner lining layer, which can effectively reduce the friction between the blank and the mold during demolding. The coordinated action of the linkage shaft and the pull column ensures that the elastic inner lining layer can deform accurately when needed, realizing lossless demolding. The cooperation of the air cylinder and the pressure sensor not only ensures the stability and controllability during demolding, but also further improves the automation level of the system, greatly reduces the need for manual intervention, and improves the overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a schematic diagram of the alumina ceramic product forming mold structure of the utility model;

[0013] Fig. 2 It is a schematic diagram of the support base top view structure of the alumina ceramic product forming mold of the utility model;

[0014] Fig. 3 It is a schematic diagram of the mold body top view structure of the alumina ceramic product forming mold of the utility model.

[0015] In the figure: 1, mold body; 2, elastic inner lining layer; 3, support base; 4, linkage shaft; 5, pull column; 6, support plate; 7, guide rod; 8, linkage plate; 9, control air cylinder; 10, composite elastic expansion pad; 11, pressure sensor; 12, guide sleeve; 13, butt plate. DETAILED DESCRIPTION

[0016] 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, not 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.

[0017] See Figs. 1-3The utility model provides a technical scheme: an alumina ceramic product forming die, including die 1, die 1 is cylindrical die, the inside of die 1 is equipped with elastic inner lining 2, both sides of die 1 bottom are equipped with support seat 3, the top of support seat 3 is equipped with the linkage shaft 4 of vertical distribution, the inside of linkage shaft 4 evenly is equipped with a plurality of pull column 5 who is in through die 1 and is linked with the outer wall of elastic inner lining 2, and the outside of support seat 3 is welded with support plate 6, and support plate 6 is equipped with the auxiliary stripping drive mechanism that is composed of guide rod 7, linkage plate 8 and control cylinder 9, and control cylinder 9 model is SMC CJ2B10-20, and support plate 6 is equipped with the pressure control mechanism that is composed of composite elastic expansion joint 10 and pressure sensor 11 between linkage plate 8, both sides of composite elastic expansion joint 10 are bonded in the junction of support plate 6 and linkage plate 8, and pressure sensor 11 is directly installed on composite elastic expansion joint 10, and its model is the pressure sensor of Honeywell 26PC Series, when needing to carry out stripping operation, control cylinder 9 starts and pushes linkage plate 8 and drives guide rod 7 horizontal movement, and then linkage shaft 4 and pull column 5 are inwards retraction, so that elastic inner lining 2 can fine adjustment deformation, reduce its friction with tubular ceramic body, simultaneously composite elastic expansion joint 10 can buffer and absorb vibration, ensure that system runs smoothly, avoid to cause additional damage to body, and pressure sensor 11 real-time monitoring pressure that is applied on elastic inner lining 2, feedback signal to control system, to accurately adjust the action of control cylinder 9, to realize the accurate control of the compression degree of elastic inner lining 2, this not only effectively solved the ceramic body surface damage or deformation problem caused by the close contact in the stripping process of traditional mould, especially when processing long pipe or thin-walled pipe is more remarkable, also improved stripping efficiency and finished product quality, reduced production cost and operation difficulty, significantly improved the reliability and stability of the whole production process, guide rod 7 is transversely in through the bottom of support plate 6 and is fixedly connected with the bottom of linkage shaft 4, control cylinder 9 is fixed through bolt in the top of support plate 6, the top of linkage plate 8 is welded with the output end of control cylinder 9, and the junction of the bottom of linkage plate 8 and guide rod 7 is also welded fixedly, when control cylinder 9 starts, its output end pushes linkage plate 8 and drives guide rod 7 to carry out accurate linear motion, guide rod 7 as guide device ensures that the movement track of linkage plate 8 is stable and has no deviation, and then linkage shaft 4 drives pull column 5 to be inwards retraction or outward expansion evenly, to realize the effective control and adjustment of elastic inner lining 2, the inside of the bottom of support plate 6 is fixedly embedded with guide sleeve 12, and guide rod 7 is movably inserted in the inside of guide sleeve 12, when control cylinder 9 pushes linkage plate 8 to carry out linear motion, guide rod 7 slides along the inner wall of guide sleeve 12 stably, ensures that the movement track is accurate and has no deviation, so guide sleeve 12 not only provides stable support, but also reduces the friction and wear of guide rod 7 in the movement process, support seat 3 is arc structure as a whole,And the arc of the inner wall of the support seat 3 is consistent with the arc of the outer wall of the mold body 1, and the outer wall of the bottom end of the mold body 1 is welded and fixed with a butt plate 13 on both sides, the butt plate 13 is also an arc structure, and a plurality of butt screw holes are arranged on the butt plate 13 and the support seat 3, the structure of the support seat 3 is closely combined with the outer wall of the mold body 1 through the arc-shaped inner wall, which ensures that the mold has good stability and rigidity during operation, and the butt plate 13 is aligned with the butt screw holes on the support seat 3, and the connection strength and stability between the mold body 1 and the support seat 3 are further enhanced through bolt connection, which not only ensures the structural integrity of the entire mold during high-pressure forming, but also effectively prevents the deformation of the blank caused by the shaking or displacement of the mold, the elastic lining layer 2 is a cylindrical structure made of polyurethane elastic material, and the gap between the elastic lining layer 2 and the mold body 1 is greater than 20mm, the structure of the elastic lining layer 2 can be slightly deformed under the action of the auxiliary demolding driving mechanism, and the gap between the elastic lining layer 2 and the mold body 1 provides enough space for the deformation of the elastic lining layer 2, which ensures that the friction between the elastic lining layer 2 and the ceramic blank can be uniformly reduced during demolding, and the blank is protected from excessive extrusion.

[0018] Working principle: when the alumina ceramic product forming mold is used, first, the mold body 1 is installed in place, and it is ensured that the support seat 3 is closely combined with the outer wall of the mold body 1 through the arc-shaped inner wall, and the butt plate 13 is aligned with the butt screw holes on the support seat 3 and is fixed by bolts, then the tubular ceramic blank is placed in the mold body 1, and the elastic lining layer 2 is contacted, when the demolding operation is needed, the control cylinder 9 is started, the output end of the control cylinder 9 pushes the linkage plate 8, the linkage plate 8 drives the guide rod 7 to move in a straight line in the horizontal direction, the guide rod 7 moves stably in the guide sleeve 12 inside the bottom end of the branch plate 6, and then pushes the linkage shaft 4 and the pull column 5 to shrink, so that the elastic lining layer 2 is slightly deformed, in this process, the pressure sensor 11 monitors the pressure applied to the elastic lining layer 2 in real time, and feeds back the signal to the control system, so as to accurately adjust the action of the control cylinder 9, and ensure that the compression degree of the elastic lining layer 2 is accurately controllable, and finally after completing the demolding operation, the control cylinder 9 reverses the action, so that the linkage plate 8, the guide rod 7, the linkage shaft 4 and the pull column 5 return to the original position, and prepare for the next forming operation, so as to complete a series of work.

[0019] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A molding die for alumina ceramic products, comprising a die body (1), characterized in that: The mold body (1) is provided with an elastic inner lining layer (2) inside. Support seats (3) are provided on both sides of the bottom end of the mold body (1). The top of the support seat (3) is provided with a vertically distributed linkage shaft (4). Several tie columns (5) are evenly provided on the inner side of the linkage shaft (4) and pass through the mold body (1) and are connected to the outer wall of the elastic inner lining layer (2). The support seat (3) is provided with a support plate (6) on the outer side. The support plate (6) is provided with an auxiliary demolding drive mechanism composed of a guide rod (7), a linkage plate (8) and a control cylinder (9). A pressure control mechanism composed of a composite elastic telescopic pad (10) and a pressure sensor (11) is provided between the support plate (6) and the linkage plate (8).

2. The alumina ceramic product molding die according to claim 1, characterized in that: The guide rod (7) extends horizontally through the bottom end of the support plate (6) and is fixedly connected to the bottom end of the linkage shaft (4). The control cylinder (9) is fixed to the top end of the support plate (6). The top end of the linkage plate (8) is fixedly connected to the output end of the control cylinder (9), and the bottom end of the linkage plate (8) is also fixedly connected to the connection point of the guide rod (7).

3. The alumina ceramic product molding die according to claim 2, characterized in that: The bottom end of the support plate (6) is fitted with a guide sleeve (12), and the guide rod (7) is movably inserted inside the guide sleeve (12).

4. The alumina ceramic product molding die according to claim 1, characterized in that: The support base (3) has an overall arc-shaped structure, and the curvature of the inner wall of the support base (3) matches the curvature of the outer wall of the mold body (1).

5. The alumina ceramic product molding die according to claim 1, characterized in that: Both sides of the bottom outer wall of the mold body (1) are welded and fixed with docking plates (13), and both the docking plates (13) and the support base (3) are provided with a number of docking screw holes.

6. The alumina ceramic product molding die according to claim 1, characterized in that: The elastic inner liner (2) is a cylindrical structure made of polyurethane elastic material, and the gap between the elastic inner liner (2) and the mold body (1) is greater than 20 mm.

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