Small-diameter sand core mold forming mold

Abstract

The utility model belongs to the technical field of forming dies, and particularly relates to a small-diameter sand core die forming die which comprises a bottom plate and a forming cylinder, the forming cylinder is located on the upper surface of the bottom plate, a supporting column is fixedly connected to the upper surface of the bottom plate, a pressing plate is inserted into the inner surface of the forming cylinder, and two grips are fixedly connected to the upper surface of the pressing plate. A plurality of positioning pins are in threaded connection with the inner walls of the bottom plate and the forming cylinder, a backing ring is fixedly connected to the bottom end of the bottom plate, a gasket is fixedly connected to the bottom end of the bottom plate, a scraping device is arranged on the surface of the forming cylinder and comprises a supporting frame, the supporting frame is located on the upper surface of the forming cylinder, and a scraping ring is fixedly connected to the bottom end of the supporting frame; the inner surface of the scraping ring is fixedly connected with a scraping ring; through the arrangement, the whole device is faster to use, convenient to install on site and easy to maintain and replace; compared with a traditional assembly process method, the method has the advantages of rapidness, simplicity and maintainability; and meanwhile, compared with a traditional mold, the mounting mode is simpler, and the environmental adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, in particular to a small-diameter sand core mold forming mold. Background Art

[0002] Box (barrel) launch technology is a popular and advanced launch device design technology in the world today. Composite materials have the advantages of high specific strength, high specific modulus, and structural designability. Therefore, domestic and foreign experts have carried out comprehensive research on the application of composite material barrels, and have accumulated a lot of technology and achieved remarkable technical results.

[0003] In view of the above and existing related technologies, the inventor believes that there are often the following defects: due to the different sizes of each product, the required mold form is also different. For a launch tube with a large diameter, a metal mold is generally used for manufacturing, but for a launch tube with a small diameter, the use of a traditional metal mold will be unsuitable; therefore, a small-diameter sand core mold forming mold is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a small-diameter sand core mold forming mold, aiming to solve at least one technical problem proposed in the background technology.

[0005] The utility model is implemented as follows: a small-diameter sand core mold forming mold described in the utility model includes a base plate and a forming cylinder, the forming cylinder is located on the upper surface of the base plate, the upper surface of the base plate is fixedly connected to a support column, the inner surface of the forming cylinder is inserted with a pressing plate, and the upper surface of the pressing plate is fixedly connected to two handles, the pressing plate slides on the surface of the support column and the inner surface of the forming cylinder, the pressing plate will extrude the raw material, and then dry and form it, and the sand core can be conveniently produced by arranging the base plate, the forming cylinder and the support column.

[0006] Furthermore, the bottom plate and the inner wall of the forming cylinder are threadedly connected with a plurality of positioning pins. After the forming cylinder is attached to the bottom plate, the positioning pins are rotated to the bottom plate and the inner wall of the forming cylinder, and the positioning pins can fix the bottom plate and the forming cylinder.

[0007] Furthermore, a gasket is fixedly connected to the bottom end of the base plate, and a washer is fixedly connected to the bottom end of the base plate. The gasket and the washer are pressed against the ground. The base plate can be supported to a certain extent by arranging the gasket and the washer.

[0008] Furthermore, a scraping device is provided on the surface of the forming cylinder, and the scraping device includes a support frame, the support frame is located on the upper surface of the forming cylinder, the bottom end of the support frame is fixedly connected with a scraper ring, the inner surface of the scraper ring is fixedly connected with a scraper circle, the scraper circle is located on the surface of the support column, the scraper ring is inserted into the inner surface of the forming cylinder, the scraper ring moves on the inner surface of the forming cylinder, and the scraper circle moves on the surface of the support column. By arranging the scraper ring and the scraper circle, the residues on the surfaces of the forming cylinder and the support column can be cleaned.

[0009] Furthermore, a fixed block is fixedly connected to the surface of the forming cylinder, a rotating block is rotatably connected to the surface of the fixed block, an inner wall of the rotating block is slidably connected to the surface of the support frame, the support frame is pushed to allow the support frame to drive the rotating block to rotate, the rotating block rotates on the surface of the fixed block, and then the support frame is released to allow the support frame to move to a suitable position, and the position of the support frame can be fixed by setting the fixed block and the rotating block.

[0010] Furthermore, a rotating hole is provided on the surface of the rotating block, and the inner wall of the rotating hole of the rotating block is rotatably connected to the surface of the fixed block. Two limit plates are fixedly connected to the upper surface of the support frame. When the rotating block rotates, the rotating block rotates on the surface of the fixed block through the rotating hole. The rotation of the rotating block can be facilitated by providing the rotating hole.

[0011] Furthermore, the upper surface of the fixed block is fixedly connected to the limit block, and the inner wall of the limit block and the inner wall of the rotating block are threadedly connected to the limit pin. After the rotating block is rotated to a suitable angle, the limit pin

[0012] Compared with the prior art, the utility model fixes the bottom plate and the forming cylinder by positioning pins during equipment production. When the bottom plate moves, the bottom plate will drive the gasket and the washer to be squeezed on the ground. Then, after a portion of quartz sand is loaded into the forming cylinder, it is compacted with a tamping hammer, and the quartz sand will fit the support column when it moves. After another portion of sand is loaded, it is compacted again. Finally, after the forming cylinder is filled with quartz sand, the handle is held and then pushed to drive the pressure plate to move, and the quartz sand is slowly pressed downward. A rammer or a copper hammer is used to apply force downward to compact the quartz sand. Put the mold into the oven for drying. When the quartz sand is solidified, separate the core mold bottom plate and the molding cylinder. Because the inner wall of the molding cylinder has a taper, the molding cylinder needs to be turned 180 degrees and then the sand core mold is slowly removed. The entire device is faster to use, easier to install on site, and easier to repair and replace. Compared with traditional assembly methods, it is faster, simpler, and easier to maintain. At the same time, the installation method is simpler than traditional molds and has stronger environmental adaptability.

[0013] 2. When there are residues in the forming cylinder after production is completed, the utility model pulls the support frame to make the support frame slide on the inner wall of the rotating block. After the support frame moves to the appropriate position, the support frame is pushed to make the support frame drive the rotating block to rotate. The rotating block rotates on the surface of the fixed block through the rotating hole. After the rotating block rotates to the appropriate angle, the limit pin is rotated to the limit block and the inner wall of the support frame, and then the support frame is pushed to make the support frame drive the limit plate and the scraper ring to move. The scraper ring drives the scraper circle to move. The scraper ring moves on the inner surface of the forming cylinder, and the scraper circle moves on the surface of the support column. After cleaning is completed, the support frame is moved to its original position again. By setting the scraper ring and the scraper circle, the forming cylinder and the support column can be cleaned, and the position of the support frame can also be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a forming cylinder in a small-diameter sand core mold forming mold;

[0015] Figure 2 It is a schematic diagram of the structure of a molding cylinder in a small-diameter sand core mold molding mold when viewed from above;

[0016] Figure 3 It is a schematic diagram of the side view structure of a forming cylinder in a small-diameter sand core mold forming mold;

[0017] Figure 4 For a small diameter sand core mold forming mold Figure 3 A schematic diagram of the structure at A;

[0018] Figure 5 It is a schematic diagram of the explosion structure of a scraping device in a small-diameter sand core mold forming mold.

[0019] The figure numerals involved in the above drawings are: 1. base plate; 2. forming cylinder; 3. support column; 4. pressure plate; 5. handle; 6. positioning pin; 7. gasket; 8. gasket; 9. scraper device; 91. support frame; 92. scraper ring; 93. scraper ring; 94. limit plate; 95. fixed block; 96. rotating block; 97. rotating hole; 98. limit block; 99. limit pin. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5As shown, a small-diameter sand core mold forming mold includes a base plate 1 and a forming cylinder 2, wherein the forming cylinder 2 is located on the upper surface of the base plate 1, and a support column 3 is fixedly connected to the upper surface of the base plate 1, and a pressing plate 4 is inserted on the inner surface of the forming cylinder 2, and two handles 5 are fixedly connected to the upper surface of the pressing plate 4; when working, the forming cylinder 2 is fixed on the base plate 1, and then the material is stuffed into the inner surface of the forming cylinder 2, and then the handle 5 is pushed to allow the handle 5 to drive the pressing plate 4 to move, and the pressing plate 4 slides on the surface of the support column 3 and the inner surface of the forming cylinder 2, and the pressing plate 4 will squeeze the raw material, and then dry and form it. By setting the base plate 1, the forming cylinder 2 and the support column 3, the sand core can be easily produced.

[0022] The inner walls of the bottom plate 1 and the forming cylinder 2 are threadedly connected with a plurality of positioning pins 6; when working, the positioning pins 6 are rotated to the inner walls of the bottom plate 1 and the forming cylinder 2, and the positioning pins 6 can fix the bottom plate 1 and the forming cylinder 2.

[0023] A gasket 7 is fixedly connected to the bottom end of the base plate 1, and a washer 8 is fixedly connected to the bottom end of the base plate 1; when working, the base plate 1 will drive the gasket 7 and the washer 8 to move, and the gasket 7 and the washer 8 are against the ground. By setting the gasket 7 and the washer 8, the base plate 1 can be supported to a certain extent.

[0024] The surface of the forming tube 2 is provided with a scraping device 9, and the scraping device 9 includes a support frame 91, and the support frame 91 is located on the upper surface of the forming tube 2. The bottom end of the support frame 91 is fixedly connected with a scraper ring 92, and the inner surface of the scraper ring 92 is fixedly connected with a scraper circle 93, and the scraper circle 93 is located on the surface of the support column 3. The scraper ring 92 is inserted into the inner surface of the forming tube 2; when working, the support frame 91 is pushed to allow the support frame 91 to drive the scraper ring 92 and the scraper circle 93 to move, the scraper ring 92 moves on the inner surface of the forming tube 2, and the scraper circle 93 moves on the surface of the support column 3. By arranging the scraper ring 92 and the scraper circle 93, the residues on the surfaces of the forming tube 2 and the support column 3 can be cleaned.

[0025] The surface of the forming tube 2 is fixedly connected to a fixed block 95, and the surface of the fixed block 95 is rotatably connected to a rotating block 96, and the inner wall of the rotating block 96 is slidably connected to the surface of the support frame 91; when working, the support frame 91 is pulled to allow the support frame 91 to drive the scraper ring 92 to move, and the support frame 91 slides on the inner wall of the rotating block 96. After the support frame 91 slides to a suitable height, the support frame 91 is pushed to allow the support frame 91 to drive the rotating block 96 to rotate, and the rotating block 96 rotates on the surface of the fixed block 95, and then the support frame 91 is released to allow the support frame 91 to move to a suitable position. By setting the fixed block 95 and the rotating block 96, the position of the support frame 91 can be fixed.

[0026] A rotating hole 97 is provided on the surface of the rotating block 96, and the inner wall of the rotating hole 97 of the rotating block 96 is rotatably connected to the surface of the fixed block 95. Two limit plates 94 are fixedly connected to the upper surface of the support frame 91. During operation, the rotating block 96 rotates on the surface of the fixed block 95 through the rotating hole 97. When the support frame 91 moves, the support frame 91 will drive the limit plates 94 to move. The rotating hole 97 can facilitate the rotation of the rotating block 96.

[0027] The upper surface of the fixed block 95 is fixedly connected to the limit block 98, and the inner wall of the limit block 98 and the inner wall of the rotating block 96 are threadedly connected to the limit pin 99; when working, the limit pin 99 is rotated to the inner wall of the limit block 98 and the rotating block 96, and the limit block 98 and the limit pin 99 can limit the angle of the rotating block 96.

[0028] Working principle: when the equipment is produced, the bottom plate 1 and the forming cylinder 2 are fixed by the positioning pin 6. When the bottom plate 1 moves, the bottom plate 1 will drive the gasket 7 and the gasket 8 to be squeezed on the ground, and then a part of quartz sand is added to the forming cylinder 2, and it is compacted with a tamping hammer. When the quartz sand moves, it will fit the support column 3; after another part of sand is added, it is compacted again; finally, after the forming cylinder 2 is filled with quartz sand, hold the handle 5 and then push the handle 5, so that the handle 5 drives the pressure plate 4 to move, and slowly press the quartz sand downward, and use a rammer or a copper hammer to apply force downward to compact the quartz sand. Put the mold into the oven for drying. When the quartz sand is solidified, separate the core mold bottom plate 1 and the forming tube 2. Because the inner wall of the forming tube 2 is tapered, the forming tube 2 needs to be turned 180 degrees and placed, and then the sand core mold is slowly removed. By setting the entire device, it is faster to use, easier to install on site, and easier to repair and replace. Compared with the traditional assembly process, it is faster, simpler, and more maintainable. At the same time, the installation method is simpler and more environmentally adaptable than traditional molds. When there is residue in the forming tube 2 after production, pull the support frame 91 to let the support frame 91 slide on the inner wall of the rotating block 96. After the support frame 91 moves to the appropriate position, push the support frame 91 Let the support frame 91 drive the rotating block 96 to rotate, and the rotating block 96 rotates on the surface of the fixed block 95 through the rotating hole 97. After the rotating block 96 rotates to a suitable angle, the limit pin 99 is rotated to the limit block 98 and the inner wall of the support frame 91, and then the support frame 91 is pushed to allow the support frame 91 to drive the limit plate 94 and the scraper ring 92 to move, and the scraper ring 92 drives the scraper circle 93 to move. The scraper ring 92 moves on the inner surface of the forming tube 2, and the scraper circle 93 moves on the surface of the support column 3. After cleaning is completed, the support frame 91 is moved to its original position again. By setting the scraper ring 92 and the scraper circle 93, the forming tube 2 and the support column 3 can be cleaned, and the position of the support frame 91 can also be fixed.

[0029] 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.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A small-diameter sand core mold forming mold, comprising a base plate (1) and a forming cylinder (2), characterized in that: The forming cylinder (2) is located on the upper surface of the base plate (1), the upper surface of the base plate (1) is fixedly connected to a support column (3), the inner surface of the forming cylinder (2) is provided with a pressing plate (4), and the upper surface of the pressing plate (4) is fixedly connected to two handles (5).

2. A small-diameter sand core mold forming mold according to claim 1, characterized in that: The bottom plate (1) and the inner wall of the forming cylinder (2) are threadedly connected with a plurality of positioning pins (6).

3. The small-diameter sand core mold forming mold according to claim 1, characterized in that: A gasket (7) is fixedly connected to the bottom end of the base plate (1), and a washer (8) is fixedly connected to the bottom end of the base plate (1).

4. The small-diameter sand core mold forming mold according to claim 1, characterized in that: The surface of the forming tube (2) is provided with a scraping device (9), and the scraping device (9) comprises a support frame (91), and the support frame (91) is located on the upper surface of the forming tube (2), and the bottom end of the support frame (91) is fixedly connected to a scraping ring (92), and the inner surface of the scraping ring (92) is fixedly connected to a scraping circle (93), and the scraping circle (93) is located on the surface of the support column (3), and the scraping ring (92) is inserted into the inner surface of the forming tube (2).

5. The small-diameter sand core mold forming mold according to claim 4, characterized in that: A fixed block (95) is fixedly connected to the surface of the forming cylinder (2), a rotating block (96) is rotatably connected to the surface of the fixed block (95), and an inner wall of the rotating block (96) is slidably connected to the surface of the support frame (91).

6. A small-diameter sand core mold forming mold according to claim 5, characterized in that: A rotating hole (97) is provided on the surface of the rotating block (96); the inner wall of the rotating hole (97) of the rotating block (96) is rotatably connected to the surface of the fixed block (95); and two limiting plates (94) are fixedly connected to the upper surface of the support frame (91).

7. A small-diameter sand core mold forming mold according to claim 6, characterized in that: The upper surface of the fixed block (95) is fixedly connected to a limit block (98), and the inner wall of the limit block (98) and the inner wall of the rotating block (96) are threadedly connected to a limit pin (99).

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