Special tool for special-shaped salt core sintering process

Abstract

The utility model relates to the technical field of special-shaped salt core sintering, and particularly discloses a special tool for a special-shaped salt core sintering process. The salt core grabbing device comprises a groove body and a grabbing handle, an inverted-trapezoid-shaped groove is formed in the groove body, the inclination of the inclined face of the inverted-trapezoid-shaped groove is the same as that of a special-shaped salt core, and a plurality of hollow holes are formed in the inclined face and the bottom face of the inverted-trapezoid-shaped groove; a plurality of positioning holes are formed in the outer sides of the two ends of the groove body; the grabbing handle comprises a handle rod, and a plurality of inserting rods capable of being inserted into the positioning holes are arranged at the lower end of the handle rod. The positioning holes special for the handle are designed in the two side edges of the tool, the grabbing position of the tool can be adjusted according to the actual situation, the sintered special-shaped salt core and the tool can be conveniently and directly taken out together by grabbing the handle in the sand burying state, and the effect of rapidly discharging products is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering of special-shaped salt cores, and particularly relates to a special tooling for a sintering process of special-shaped salt cores. Background Art

[0002] At present, the manufacturing process of special-shaped salt cores is carried out by an injection molding process. The sintering process of special-shaped salt cores is divided into two parts. One is the degreasing process, and the second is the curing and sintering process. In the degreasing link of special-shaped salt cores, it is necessary to bury them in the box body to ensure that the special-shaped salt cores will not be deformed due to too fast degreasing. The special-shaped salt cores with uniform wall thickness can meet the requirements. For special-shaped salt cores with large wall thickness differences as shown in Figure 1 , only relying on degreasing and sintering buried in the box body cannot meet the requirement of no deformation of special-shaped salt cores. Summary of the Utility Model

[0003] In order to make up for the defects of the prior art, the utility model provides a special tooling for a sintering process of special-shaped salt cores, which can ensure that the special-shaped salt cores will not be deformed during the degreasing and sintering process, thereby improving the yield of special-shaped salt cores.

[0004] The utility model is realized by the following technical solutions:

[0005] A special tooling for a sintering process of special-shaped salt cores includes a tank body and a grasping handle. A trapezoidal groove is arranged in the tank body. The slope of the inclined surface of the trapezoidal groove is the same as that of the special-shaped salt core. A plurality of hollow holes are opened on the inclined surface and the bottom surface of the trapezoidal groove; a plurality of positioning holes are opened on the outer sides of both ends of the tank body; the grasping handle includes a handle rod, and a plurality of inserting rods capable of being inserted into the positioning holes are arranged at the lower end of the handle rod.

[0006] The hollow holes include long strip-shaped holes and round holes.

[0007] The handle rod is T-shaped.

[0008] There are four inserting rods, which are arranged in a rectangular shape; there are two upper and lower rows of positioning holes, and at least two in each row.

[0009] The materials of the tank body and the grasping handle are the same as those of the special-shaped salt core.

[0010] The beneficial effects of the utility model are as follows:

[0011] The utility model adopts a bottom hollow design, which can better discharge the waste gas during the degreasing and sintering process, thereby ensuring that the appearance of the special-shaped salt core has no defects such as raised bubbles.

[0012] Positioning holes for special handles are designed on both sides of the utility model, and the grasping position of the tooling can be adjusted according to the actual situation, facilitating the direct removal of the sintered special-shaped salt core and the utility model together through the special handle in the state of sand embedding, achieving the effect of rapid product output.

[0013] The utility model is made of the same material as the special-shaped salt core, ensuring that the utility model and the special-shaped salt core to be sintered have the same expansion rate. At high temperatures, the special-shaped salt core and the utility model can expand and contract synchronously, reducing the deformation of the special-shaped salt core caused by its own structure. Brief Description of the Drawings

[0014] The following further describes the utility model with reference to the drawings:

[0015] Figure 1 is a three-dimensional structural schematic diagram of the special-shaped salt core;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the cassette;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the grasping handle

[0019] Figure 5 is a three-dimensional structural schematic diagram of the assembled groove body and grasping handle placed in the special-shaped salt core;

[0020] Figure 6 is Figure 5 top view structural schematic diagram of;

[0021] Figure 7 is a cross-sectional structural schematic diagram during the sintering process.

[0022] In the figure, 1 is the special-shaped salt core, 2 is the cassette, 3 is the groove body, 4 is the inverted trapezoidal groove, 5 is the hollow hole, 6 is the positioning hole, 7 is the grasping handle, 8 is the handle rod, 9 is the cross bar, 10 is the insertion rod, and 11 is the sand embedding. Detailed Embodiment

[0023] In order to more clearly understand the above-mentioned objects, features, and advantages of the utility model, the following further describes the utility model in detail with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0024] In the following description, many specific details are set forth to fully understand the utility model. However, the utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0025] The accompanying drawings are specific embodiments of the present utility model. As Figures 1 to 7 shown, the special tooling for the sintering process of this special-shaped salt core includes a tank body 3. An inverted trapezoidal groove 4 is opened in the tank body 3. The slope of the inclined surface of the inverted trapezoidal groove 4 is the same as that of the special-shaped salt core 1, so as to ensure that when the special-shaped salt core 1 is degreased and sintered, it can effectively support both sides of the special-shaped salt core 1 and prevent it from sagging and deforming.

[0026] A number of hollow holes 5 are opened on the inclined surface and the bottom surface of the inverted trapezoidal groove 4, which is convenient for the exhaust of waste gas during the degreasing process. These hollow holes 5 include Figure 3 the long strip holes and round holes as

[0027] shown. A number of positioning holes 6 are opened on the outer sides of both ends of the tank body 3. These positioning holes 6 are divided into two rows, upper and lower, and there are at least two in each row.

[0028] There is also a grasping handle 7. This grasping handle 7 includes: a handle rod 8. The upper end of the handle rod 8 is preferably T-shaped. There are two horizontal bars 9 arranged up and down at the lower end of the handle rod 8. There are two insertion rods 10 on each of the two horizontal bars 9, arranged in a rectangular shape, and the four insertion rods 10 can be freely inserted into the positioning holes 6.

[0029] The materials used for the tank body 3 and the grasping handle 7 are the same as those of the special-shaped salt core 1, and all are made of salt + ceramic powder materials.

[0030] As Figure 7 shown, a number of special-shaped salt cores 1 as Figure 1 shown are placed side by side on the present utility model. The gap between adjacent special-shaped salt cores 1 needs to be > 5 mm to prevent interference phenomena caused by the expansion of the special-shaped salt core 1 during high-temperature sintering. Insert the insertion rods 10 on the grasping handle 7 into the positioning holes 6 to make the tank body 3 and the grasping handle 7 an integral body. Then put the special-shaped salt core 1 to be sintered and the present utility model together into the sintering box body 2 with sand laid at the bottom. Then bury the special-shaped salt core 1 and the present utility model with sand 11, and the thickness of the buried sand 11 is not less than 20 mm. Transfer the entire box body 2 after burying the sand into the degreasing and sintering furnace for sintering. After the sintering is completed, use the grasping handle 7 to take out the sintered special-shaped salt core 1 and the present utility model together to complete the sintering operation of the special-shaped salt core 1.

[0031] In the present utility model, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plural" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "joined", "fixed" should all be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "joined" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0033] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0035] Except for the technical features described in the specification, the remaining technical features are all known to those skilled in the art.

Claims

1. A special tool for the sintering process of special-shaped salt cores, characterized in that: The invention comprises a groove body (3) and a grab handle (7), wherein an inverted trapezoidal groove (4) is provided in the groove body (3), the inclination of the inclined surface of the inverted trapezoidal groove (4) is the same as the inclination of the special-shaped salt core (1), and a plurality of hollow holes (5) are provided on the inclined surface and the bottom surface of the inverted trapezoidal groove (4); a plurality of positioning holes (6) are provided on the outer sides of both ends of the groove body (3); and the grab handle (7) comprises a handle bar (8), wherein a plurality of insertion rods (10) capable of being inserted into the positioning holes (6) are provided at the lower end of the handle bar (8).

2. The special tooling for the special-shaped salt core sintering process according to claim 1 is characterized in that: The hollow holes (5) include elongated holes and circular holes.

3. The special tooling for the special-shaped salt core sintering process according to claim 1 is characterized in that: The handle (8) is T-shaped.

4. The special tooling for the special-shaped salt core sintering process according to claim 1 is characterized in that: There are four insertion rods (10) arranged in a rectangular shape; there are two upper and lower rows of positioning holes (6), with at least two holes in each row.

5. The special tooling for the special-shaped salt core sintering process according to claim 1 is characterized in that: The material used for the trough body (3) and the grab handle (7) is the same as that of the special-shaped salt core (1).

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