Rotatable ceramic tube sintering tool

Abstract

The utility model discloses a rotatable ceramic tube sintering tool which comprises a sintering furnace mechanism, two rotary ceramic tube sintering mechanisms penetrating to the top of the sintering furnace mechanism are arranged in the sintering furnace mechanism, and the outer ring of each rotary ceramic tube sintering mechanism is sleeved with a ceramic tube. The sintering furnace mechanism comprises a furnace base and a hearth fixed to the surface of the top of the furnace base. According to the technical scheme, the rotary ceramic tube sintering mechanism is arranged in the sintering furnace, a ceramic tube blank is placed in a suspended mode through the upper supporting disc and the lower supporting disc, and on the basis that the distance between the upper supporting disc and the lower supporting disc can be adjusted to adapt to the ceramic tube blanks of different heights, the ceramic tube blanks can be kept in a stable posture in the sintering process; and the ceramic tube blank between the supporting discs is driven to rotate in the furnace in a gear transmission manner, so that each surface of the ceramic tube blank can uniformly receive high temperature, and the quality of the sintered ceramic tube blank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic tube sintering tools, in particular to a rotatable ceramic tube sintering tool. Background Art

[0002] Ceramic sintering is a general term for the densification process and phenomenon of a green body at high temperature, and the ceramic tube used for insulation inside the transformer is obtained by sintering the green body. The usual practice is to place the ceramic tube green body into the furnace and sinter it at high temperature. The inventors found that during the sintering process, one end of the green body must be placed at the bottom of the furnace, which causes the sintering effect of the side of the green body in contact with the furnace to be slightly worse than other areas, and because the overall weight of the ceramic tube green body is pressed on this side, if this side is not flat enough, it will tip over during the sintering process. In addition, due to slight deviations in the temperature of each area in the furnace, when the green body is in a static state, the sintering effect of each side will be uneven due to slight deviations in the temperature of each area in the furnace. Therefore, those skilled in the art propose a rotatable ceramic tube sintering tool. Utility Model Content

[0003] The purpose of the utility model is to provide a technical solution for a rotatable ceramic tube sintering tooling to solve the shortcomings of the background technology. In order to solve the disadvantages and defects of the background technology, the technical solution has the following contents:

[0004] It comprises a sintering furnace mechanism, wherein two rotary ceramic tube sintering mechanisms penetrating to the top of the sintering furnace mechanism are arranged inside the sintering furnace mechanism, and a ceramic tube is sleeved on the outer ring of each rotary ceramic tube sintering mechanism;

[0005] The sintering furnace mechanism comprises a furnace seat, a furnace chamber fixed on the top surface of the furnace seat, and a furnace door hingedly mounted on the front side wall of the furnace chamber;

[0006] The rotary ceramic tube sintering mechanism comprises two lower support plates rotatably connected to the bottom surface of the furnace inner cavity, two screw rods inserted in the central position of the upper surface of the lower support plates, and two upper support plates movably arranged in the middle section of the outer ring of the screw rods, and the ceramic tube is placed between the lower support plates and the upper support plates close to each other;

[0007] A servo motor is fixedly connected to the top surface of the furnace, the output shaft of the servo motor is connected to a driving gear, and one end of the lead screw that passes through the top of the furnace is fixed with a driven gear that meshes with the driving gear;

[0008] The upper support plate and the lower support plate are both provided with 50-70 air holes, and a nut is screwed on the middle section of the outer ring of the screw rod, and the bottom surface of the nut is in contact with the top surface of the upper support plate.

[0009] As a preferred solution of the utility model, a rotating shaft is fixed to the bottom surface of the lower supporting plate, and two grooves for the rotating shaft to be inserted and rotated are provided on the bottom surface of the inner cavity of the furnace.

[0010] As a preferred solution of the utility model, a slot is provided at the central position of the top surface of the lower support plate, and the cross section of the slot is triangular, wherein a plug rod coupled and plugged with the slot is fixed at the bottom end of the screw rod.

[0011] As a preferred solution of the utility model, the top surface of the furnace is provided with two circular holes for the screw rod to pass through and rotate, and bearings adapted to the screw rod are installed inside the circular holes.

[0012] As a preferred solution of the utility model, two convex strips for rotation are fixed on the outer ring surface of the nut, and the inner ring surface of the nut is provided with screw threads that are mutually compatible with the outer ring threads of the screw rod.

[0013] As a preferred solution of the utility model, a through hole for the screw rod to pass through is opened at the inner central position of the upper support plate, and the diameter of the through hole is 5mm-10mm larger than the outer diameter of the screw rod.

[0014] As a preferred solution of the utility model, the top port surface of the ceramic tube contacts the bottom surface of the upper support plate, and the bottom port surface of the ceramic tube contacts the top surface of the lower support plate.

[0015] As a preferred solution of the utility model, a fixing plate is fixed to the rear surface of the housing of the servo motor by screws, and the bottom surface of the fixing plate is fixedly connected to the rear area of ​​the top surface of the furnace.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] In this technical solution, a rotary ceramic tube sintering mechanism is arranged inside the sintering furnace, and the ceramic tube embryo is suspended in the air using upper and lower support plates. The upper and lower support plates can adjust the spacing to accommodate ceramic tube embryos of different heights, thereby allowing the ceramic tube embryo to maintain a stable posture during the sintering process; and the ceramic tube embryo between the support plates is driven to rotate in the furnace by gear transmission, so that each surface of the ceramic tube embryo can evenly receive the high temperature, thereby improving the quality of the ceramic tube embryo after sintering. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is an overall schematic diagram of a ceramic sintering furnace and a ceramic tube sintering mechanism;

[0020] Figure 2 It is a schematic diagram of the rotary ceramic tube sintering mechanism;

[0021] Figure 3 It is a partial cutaway schematic diagram of a rotary ceramic tube sintering mechanism;

[0022] Figure 4 Schematic diagram of a ceramic sintering furnace.

[0023] Description of reference numerals:

[0024] 1. Sintering furnace mechanism; 11. Furnace base; 12. Furnace chamber; 13. Through hole; 14. Groove; 15. Furnace door; 2. Rotary ceramic tube sintering mechanism; 21. Servo motor; 22. Fixed plate; 23. Driving gear; 24. Driven gear; 25. Screw; 26. Upper support plate; 27. Lower support plate; 28. Nut; 29. ​​Air vent; 210. Rotating shaft; 211. Slot; 212. Insert rod; 3. Ceramic tube. DETAILED DESCRIPTION

[0025] In order to more clearly explain and illustrate the technical solution and implementation of the present utility model, several preferred specific embodiments for implementing the technical solution of the present utility model are introduced below.

[0026] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application and use. It should be understood that in all these figures, the same or similar figure numbers indicate the same or similar parts and features. The various figures only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may use exaggerated methods to illustrate the relevant details or structures of the embodiments of the present disclosure. The various publications, patents and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model.

[0027] Embodiment, a better technical solution for a rotatable ceramic tube sintering tool.

[0028] The sintering furnace mechanism 1 includes two rotating ceramic tube sintering mechanisms 2 penetrating the top of the sintering furnace mechanism 1, and a ceramic tube 3 is sleeved on the outer ring of each rotating ceramic tube sintering mechanism 2;

[0029] The sintering furnace mechanism 1 includes a furnace base 11, a furnace chamber 12 fixed to the top surface of the furnace base 11, and a furnace door 15 installed on the front side wall of the furnace chamber 12 by hinges;

[0030] The rotary ceramic tube sintering mechanism 2 includes two lower support plates 27 rotatably connected to the bottom surface of the inner cavity of the furnace 12, two screw rods 25 inserted in the center of the upper surface of the lower support plates 27, and two upper support plates 26 movably arranged in the middle section of the outer ring of the screw rods 25, and the ceramic tube 3 is placed between the lower support plates 27 and the upper support plates 26 close to each other;

[0031] A servo motor 21 is fixedly connected to the top surface of the furnace 12, and the output shaft of the servo motor 21 is connected to a driving gear 23, and a driven gear 24 meshing with the driving gear 23 is fixed to one end of a lead screw 25 that passes through the top of the furnace 12; 50-70 air holes 29 are provided inside the upper support plate 26 and the lower support plate 27, and a nut 28 is screwed on the middle section of the outer ring of the lead screw 25, and the bottom surface of the nut 28 is in contact with the top surface of the upper support plate 26.

[0032] A rotating shaft 210 is fixed to the bottom surface of the lower support plate 27, and two grooves 14 are provided on the bottom surface of the inner cavity of the furnace 12 for the rotating shaft 210 to be inserted and rotated. A slot 211 is provided at the center of the top surface of the lower support plate 27, and the cross section of the slot 211 is triangular, wherein an insertion rod 212 coupled and plugged with the slot 211 is fixed to the bottom end of the screw rod 25.

[0033] The top surface of the furnace 12 is provided with two round holes for the screw rod 25 to pass through and rotate, and the inside of the round holes are installed with bearings that match the screw rod 25. The outer surface of the nut 28 is fixed with two convex strips for rotation, and the inner surface of the nut 28 is provided with screw teeth that match the outer thread of the screw rod 25; the central position of the upper support plate 26 is provided with a through hole for the screw rod 25 to pass through, and the diameter of the through hole is 5mm-10mm larger than the outer diameter of the screw rod 25.

[0034] The top port surface of the ceramic tube 3 contacts the bottom surface of the upper support plate 26, and the bottom port surface of the ceramic tube 3 contacts the top surface of the lower support plate 27. A fixing plate 22 is fixed to the rear surface of the housing of the servo motor 21 by screws, and the bottom surface of the fixing plate 22 is fixedly connected to the rear area of ​​the top surface of the furnace 12.

[0035] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0036] The ceramic tube 3 to be sintered is placed on the upper surface of the lower support plate 27, and the upper support plate 26 is placed on the top surface of the ceramic tube 3. The screw rod 25 passes through the upper support plate 26 and the ceramic tube 3 from top to bottom. After the insertion rod 212 is inserted into the slot 211, the upper support plate 26 is slowly tightened to press down the ceramic tube 3 by rotating the nut 28. After the upper support plate 26 is completely in contact with the top surface of the ceramic tube 3, the furnace door 15 is closed to allow the furnace 12 to sinter the ceramic tube 3. The servo motor 21 slowly drives the driving gear 23 to drive the two driven gears 24 to rotate, so that the screw rod 25 drives the lower support plate 27 to rotate, and the lower support plate 27 rotates while lifting the ceramic tube 3. At the same time, the air holes 29 inside the upper support plate 26 and the lower support plate 27 are used to allow the temperature inside the ceramic tube 3 to be better transferred during the sintering process.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotatable ceramic tube sintering tool, comprising a sintering furnace mechanism (1), characterized in that: The sintering furnace mechanism (1) is provided with two rotating ceramic tube sintering mechanisms (2) penetrating the top of the sintering furnace mechanism (1), and each of the rotating ceramic tube sintering mechanisms (2) is sleeved with a ceramic tube (3) on its outer ring; The sintering furnace mechanism (1) comprises a furnace seat (11), a furnace chamber (12) fixed to the top surface of the furnace seat (11), and a furnace door (15) mounted on the front side wall of the furnace chamber (12) via a hinge; The rotary ceramic tube sintering mechanism (2) comprises two lower support plates (27) rotatably connected to the bottom surface of the inner cavity of the furnace (12), two screw rods (25) inserted in the central position of the upper surface of the lower support plates (27), and two upper support plates (26) movably arranged in the middle section of the outer ring of the screw rod (25), and the ceramic tube (3) is placed between the lower support plates (27) and the upper support plates (26) close to each other; A servo motor (21) is fixedly connected to the top surface of the furnace (12), an output shaft of the servo motor (21) is connected to a driving gear (23), and a driven gear (24) meshing with the driving gear (23) is fixed to one end of a lead screw (25) that passes through the top of the furnace (12); The upper support plate (26) and the lower support plate (27) are each provided with 50-70 air holes (29), and a nut (28) is screwed on the middle section of the outer ring of the screw rod (25), and the bottom surface of the nut (28) is in contact with the top surface of the upper support plate (26).

2. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: A rotating shaft (210) is fixed on the bottom surface of the lower support plate (27), and two grooves (14) for the rotating shaft (210) to be inserted and rotated are provided on the bottom surface of the inner cavity of the furnace (12).

3. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: A slot (211) is provided at the center of the top surface of the lower support plate (27), and the cross section of the slot (211) is triangular, wherein an insertion rod (212) coupled and plugged with the slot (211) is fixed at the bottom end of each screw rod (25).

4. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: The top surface of the furnace (12) is provided with two circular holes for the screw rod (25) to pass through and rotate, and bearings matching the screw rod (25) are installed inside the circular holes.

5. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: The outer ring surface of the nut (28) is fixed with two convex strips for rotation, and the inner ring surface of the nut (28) is provided with screw threads that are mutually compatible with the outer ring threads of the screw rod (25).

6. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: A through hole for the screw rod (25) to pass through is provided at the inner central position of the upper support plate (26), and the diameter of the through hole is 5 mm to 10 mm larger than the outer diameter of the screw rod (25).

7. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: The top port surface of the ceramic tube (3) contacts the bottom surface of the upper support plate (26), and the bottom port surface of the ceramic tube (3) contacts the top surface of the lower support plate (27).

8. The rotatable ceramic tube sintering tool according to claim 1, characterized in that: A fixing plate (22) is fixed to the rear surface of the housing of the servo motor (21) by means of screws, and the bottom surface of the fixing plate (22) is fixedly connected to the rear area of ​​the top surface of the furnace (12).

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