CN217166399U

CN217166399U - Disc casting inner core manufacturing device

Info

Publication number: CN217166399U
Application number: CN202220751329.1U
Authority: CN
Inventors: 许占良; 王忠福; 罗永扬; 刘鹏飞; 袁宗星; 申波
Original assignee: Xinxiang Changcheng Cast Steel Co ltd
Current assignee: Xinxiang Changcheng Cast Steel Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-12
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a disc casting inner core manufacturing device, which comprises a shaft lever base, a shaft lever, a first swing arm, a second swing arm, an upper scraper and a lower scraper; the shaft lever is vertically arranged on the shaft lever base, the first swing arm and the second swing arm are the same in shape, and the first swing arm and the second swing arm are detachably and vertically rotatably arranged on the shaft lever; the first swing arm is fixedly provided with a lower scraper, and the second swing arm is fixedly provided with an upper scraper; the lower scraper is used for scraping the profile of the lower half part of the inner core of the disc casting, and the upper scraper is used for scraping the profile of the upper half part of the inner core of the disc casting. The utility model discloses a disk body foundry goods inner core making devices, the process of preparation disk body foundry goods inner core need not carry out the core assembly, and the disk body foundry goods inner core of making is the whole of a completion, and the regular no piece of shape, the surface is bright and clean, does not need whole full sample core box model, convenient operation.

Description

Disc casting inner core manufacturing device

Technical Field

The utility model belongs to the technical field of the casting, especially, relate to a dish foundry goods inner core making devices.

Background

The vertical mill is a large-scale grinding device and is widely applied to industries such as cement, electric power, metallurgy, chemical industry, non-metal ore and the like. It integrates crushing, drying, grinding and grading conveying into a whole, has high production efficiency, and can grind blocky, granular and powdery raw materials into required powdery materials. The disc body is a key part of the vertical mill equipment, the structure of the disc body is shown in figure 1, the quality of the disc body plays a crucial role in the use of the whole machine, and the casting quality of the disc body is directly influenced by the quality of an inner core of a casting of the disc body. Because the volume and the weight of the tray body are both large, the weight of the tray body reaches hundreds of tons, fig. 2 is a sectional view along the direction A-A in fig. 1, and it can be seen from fig. 2 that the internal size of the tray body is large, the volume of the inner core of the tray body casting is also large, and fig. 3 is a structural schematic diagram of the inner core of the tray body casting. If the tray body is cast by a traditional mode, namely two modes of core assembly or solid core box integral bumping, the following defects exist: the core assembly has the advantages that due to the fact that the shape and the cross section are not rectangular due to splicing and forming, the wall thickness of the disc body is different, the stress is not uniform, the service life is influenced, meanwhile, the operation efficiency is low, the appearance of a fash between the cores is influenced, and meanwhile, the quality hidden trouble is also brought; the full sample core box is integrally impacted, because the size of the inner core of the tray body is large, the cost of the model is greatly increased due to the integral impact of the full sample core box, the overlarge model is inconvenient to move, the model is deformed due to long-term storage, the precision is influenced, and the company site is occupied. Therefore, the inner core of the tray casting needs to be simply and efficiently manufactured to meet the requirement of tray casting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: provides a disk casting inner core manufacturing device which can conveniently manufacture a disk casting inner core for casting.

The technical scheme of the utility model is that:

a manufacturing device for an inner core of a disc casting comprises a shaft lever base, a shaft lever, a first swing arm, a second swing arm, an upper scraper and a lower scraper; the shaft lever is vertically arranged on the shaft lever base, the first swing arm and the second swing arm are same in shape, and the first swing arm and the second swing arm are detachably and vertically rotatably arranged on the shaft lever; the first swing arm is fixedly provided with the lower scraper, and the second swing arm is fixedly provided with the upper scraper; the lower scraper is used for scraping the profile of the lower half part of the inner core of the disc casting, and the upper scraper is used for scraping the profile of the upper half part of the inner core of the disc casting.

Preferably, the first swing arm comprises a shaft sleeve and a swing rod, the shaft sleeve is a cylinder sleeved on the shaft lever, the swing rod is perpendicular to the shaft lever and fixed on the shaft sleeve, a bolt through hole is formed in the shaft sleeve, and a fastening bolt is screwed in the bolt through hole; the lower scraper is fixed on the swing rod.

Preferably, an elliptical hole is formed in the swing rod, and the lower scraper is fixed with the swing rod through a fixing bolt in the elliptical hole.

Preferably, the upper scraper and the lower scraper are pinewood plates.

Preferably, the shaft is a steel bar.

The utility model has the advantages that:

the utility model discloses a disk body foundry goods inner core making devices uses the child mould appearance of scraper blade scraping lower half down, after filling the molding sand in foundry goods inner core child mould cavity, uses the appearance of scraper blade scraping first half of disk body foundry goods inner core, and the process of preparation disk body foundry goods inner core need not organize the core, and the disk body foundry goods inner core of making is the whole of a completion, and the regular no piece of shape, the surface is bright and clean, does not need whole full-mold core box model, convenient operation.

Drawings

Fig. 1 is a schematic structural diagram of a tray body.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic structural diagram of the inner core of the disk casting.

Fig. 4 is the schematic structural diagram of the disk body casting inner core manufacturing device of the present invention.

Fig. 5 is a schematic diagram of the tray body casting inner core manufacturing device of the present invention scraping the outer shape of the lower molding bed.

Fig. 6 is the schematic diagram of the tray body casting inner core making device of the present invention scraping the tray body casting inner core.

In the figure:

1. a shaft lever base; 2. a shaft lever; 3. a first swing arm; 31. a shaft sleeve; 32. a bolt through hole; 33. fastening a bolt; 34. a swing rod; 35. an elliptical hole; 4. a lower scraper; 5. an upper scraper plate; 6. a second swing arm; 7. fixing the bolt; 8. the shape of the moulding bed; 9. the inner core of the disc body casting; 10. the inner core of the casting is a cavity of the forming die.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Fig. 4 is the schematic structural diagram of the disk body casting inner core manufacturing device of the present invention. As shown in fig. 4, the device for manufacturing the inner core of the disc casting of the present invention comprises a shaft lever base 1, a shaft lever 2, a first swing arm 3, a second swing arm 6, an upper scraper 5 and a lower scraper 4; the shaft lever 2 is vertically arranged on the shaft lever base 1, the first swing arm 3 and the second swing arm 6 are identical in shape, and the first swing arm 3 and the second swing arm 6 are detachably and vertically rotatably arranged on the shaft lever 2; the first swing arm 3 is fixedly provided with the lower scraper 4, and the second swing arm 6 is fixedly provided with the upper scraper 5; the lower scraper 4 is used for scraping the profile 8 of the lower half part of the inner core of the disc casting, and the upper scraper 5 is used for scraping the profile of the upper half part of the inner core of the disc casting. Because the inner core of the disc casting is an irregular rotating body, when the upper scraper 5 and the lower scraper 4 are manufactured, the lower scraper 4 is manufactured into a half-section shape with the lower half part of the inner core of the disc casting, so that the lower scraper 4 can scrape the moulding bed shape of the lower half part of the inner core of the disc casting in molding sand; the upper scraper 5 is manufactured into a notch shape which is matched with the half section of the outline of the upper half part of the inner core of the disc casting, so that the upper scraper 5 can scrape the outline of the upper half part of the inner core of the disc casting in a rotating way.

The working principle is as follows:

fig. 5 is a schematic diagram of the tray body casting inner core manufacturing device of the present invention scraping the outer shape of the lower molding bed. The utility model discloses a disk body foundry goods inner core making devices is when making disk body foundry goods inner core, as shown in figure 5 earlier, will install the axle thick stick base 1 of axle thick stick 2 and bury in the molding sand, make axle thick stick base 1 level, axle thick stick 2 vertical with the horizontal ruler check-up. The first swing arm 3 is mounted on the shaft 2, and the molding sand below the lower scraper 4 is compacted while keeping a certain distance between the lower scraper 4 fixed to the first swing arm 3 and the shaft base 1. And then, taking the shaft lever 2 as a shaft, radially stacking and compacting molding sand mixed by water glass around the shaft lever 2 and from about 5-10mm inside the outer edge of the lower scraper 4 to the outside of the outer edge of the scraper 4, so that the compacted molding sand is slightly higher than the upper surface of the lower scraper 4, the inner diameter of the compacted molding sand is smaller than the diameter of the inner core of the disc casting, and the outer diameter of the compacted molding sand is larger than the diameter of the inner core of the disc casting.

Rotating the lower scraper 4 around the shaft lever 2, timely cleaning and removing the molding sand in the space through which the lower scraper 4 rotates until the molding sand scrapes the moulding sand form 8 of the lower half part of the inner core of the disc casting (namely obtaining the inner core moulding cavity 10 of the casting), leveling the upper surface of the molding sand, and introducing CO ₂ And hardening the molding sand, and taking down the first swing arm 3 and the lower scraper 4. Then, a release agent is coated on the inner wall of the casting inner core matrix cavity 10, molding sand mixed by water glass is filled in the disc casting inner core matrix cavity 10 surrounded by the matrix shape 8, and the molding sand is continuously accumulated by taking the shaft lever 2 as the circumferential direction of the axial shaft lever 2, so that the accumulation height is larger than the total height of the casting inner core to be manufactured, and the diameter is larger than the diameter of the disc casting inner core. Then, the second swing arm 6 fixed with the upper scraper 5 is rotatably mounted on the shaft lever 2, so that the bottom edge of the upper scraper 5 contacts with the upper surface of the moulding bed of the lower half part of the disc casting inner core, so that the notch position of the upper scraper 5 is smoothly butted with the moulding bed outer shape 8 (even if the point a on the upper scraper is positioned on the upper edge b of the moulding bed outer shape 8 in fig. 6), and then the upper scraper 5 is rotated around the shaft lever 2, and the molding sand scraped off in the rotation process of the upper scraper 5 is cleaned in time until the shape of the upper half part of the disc casting inner core is scraped, as shown in fig. 6. If the tire membranes scraped by the lower scraper 4 and the upper scraper 5 and the inner cores of the disc castings have gaps or uneven surfaces in the scraping process, a plurality of the tire membranes can be stuck on the inner cores of the disc castingsMolding sand, and rotating the scraper 5 again until the scraped disc casting core surface is smooth.

Introducing CO into the inner core of the scraped disc body casting ₂ Hardening the casting, and taking the prepared tray casting inner core 9 out after taking the second swing arm 6 and the upper scraper 5 down.

By adopting the device for manufacturing the inner core of the tray body casting, the lower scraper 4 scrapes the outer shape of the lower half part of the moulding bed, after the moulding sand is filled in the moulding bed cavity 10 of the inner core of the casting, the upper part of the upper half part of the inner core of the tray body casting is scraped by the upper scraper 5, the whole process for manufacturing the inner core of the tray body casting does not need to be assembled, the manufactured inner core of the tray body casting is a finished whole, the shape is regular and has no splicing seam, the surface is smooth and clean, and the size is accurate; and the whole full-sample core box model is not needed, and the operation is convenient.

Preferably, the first swing arm 3 includes a shaft sleeve 31 and a swing rod 34, the shaft sleeve 31 is a cylinder sleeved on the shaft lever 2, the swing rod 34 is fixed on the shaft sleeve 31 perpendicular to the shaft lever 2, the shaft sleeve 31 is provided with a bolt through hole 32, and a fastening bolt 33 is screwed in the bolt through hole 32; the lower scraper 4 is fixed on the swing link 34.

The swing rod 34 is rotatably sleeved on the shaft lever 2 through the shaft sleeve 31, and the shaft sleeve 31 only needs to be moved downwards or upwards along the shaft lever 2 during installation and disassembly; when the shaft sleeve 31 needs to be fixed or loosened at a required position, the fastening bolt 33 screwed in the bolt through hole 32 only needs to be screwed or loosened, and the operation is convenient. When the inner cores of the disk body castings with different shapes or sizes are manufactured, only the upper scraper 5 and the lower scraper 4 with different sizes and shapes need to be replaced.

More preferably, an oval hole 35 is formed in the swing link 34, and the lower scraper 4 is fixed to the swing link 34 through a fixing bolt 7 in the oval hole 35.

The swing rod 34 and the lower scraper 4 are fixed through the fixing bolt 7, so that the operation is convenient during fixing, and the lower scraper 4 is convenient to replace when being damaged. The second swing arm 6 has the same shape as the first swing arm 3, and the upper blade 5 may be fixed to the second swing arm 6 in the same manner.

Preferably, the upper blade 5 and the lower blade 4 are pinewood plates. The pine board has small density, light weight, high strength, low cost and other advantages.

Preferably, the shaft 2 is a steel bar. The steel bar is more stable and durable.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the respective technical features described above may be combined with each other as long as they do not conflict with each other. In addition, the above embodiments are only some embodiments, not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention based on the embodiments of the present invention.

Claims

1. A manufacturing device for an inner core of a disc casting is characterized by comprising a shaft lever base, a shaft lever, a first swing arm, a second swing arm, an upper scraper and a lower scraper; the shaft lever is vertically arranged on the shaft lever base, the first swing arm and the second swing arm are same in shape, and the first swing arm and the second swing arm are detachably and vertically rotatably arranged on the shaft lever; the first swing arm is fixedly provided with the lower scraper, and the second swing arm is fixedly provided with the upper scraper; the lower scraper is used for scraping the profile of the lower half part of the inner core of the disc casting, and the upper scraper is used for scraping the profile of the upper half part of the inner core of the disc casting.

2. The manufacturing device for an inner core of a disc casting according to claim 1, wherein the first swing arm comprises a shaft sleeve and a swing rod, the shaft sleeve is a cylinder sleeved on the shaft lever, the swing rod is fixed on the shaft sleeve perpendicular to the shaft lever, a bolt through hole is formed in the shaft sleeve, and a fastening bolt is screwed in the bolt through hole; the lower scraper is fixed on the swing rod.

3. The device for manufacturing the disc casting inner core according to claim 2, wherein an oval hole is formed in the swing rod, and the lower scraper is fixed with the swing rod through a fixing bolt in the oval hole.

4. The apparatus of claim 1 for making a tray casting core, wherein the upper and lower scrapers are pinewood plates.

5. The apparatus of claim 1 wherein the shaft is a steel rod.