CN201389615Y

CN201389615Y - Packed iron ball

Info

Publication number: CN201389615Y
Application number: CN200920302565U
Authority: CN
Inventors: 陈戊己
Original assignee: Jiangsu Gangrui Precision Machinery Co Ltd
Current assignee: Ningbo Yongxiang Casting Co., Ltd.
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-01-27
Anticipated expiration: 2019-04-24

Abstract

The utility model discloses a packed iron ball which is characterized in that a packed ball (1) has a hollow iron ball body structure with a hollow cavity body (2), and 3-8 opening holes (31) are formed on a ball wall (3) of the packed ball (1). The consumption of casting sand can be reduced, the sand layer thickness around a casting can be evener, the sand layer have ideal effect, the defects such as shrinkage porosity and the like are avoided, and the work efficiency of sand shakeout and sand conditioning can be efficiently increased during the unpacking; and the hollow iron ball can be recycled for reuse after the unpacking, so that the use cost of sand consumption is reduced.

Description

Fill iron ball

Technical field

The utility model relates to a kind of hollow ball, and especially a kind of the filling when being used for the moulding of foundry goods sand mo(u)ld economized sand and be convenient to the foundry goods Metal Ball that knockout and sand handles of unpacking.

Background technology

In foundry goods moulding production process, regular meeting uses the sand mo(u)ld moulding, and the foundry goods kind in the cast article is a lot, most of foundry goods are not special shape mo(u)lding box, sometimes the local location mold thickness is very big, placer iron causes raw and auxiliary materials wastes such as sand, resin, curing agent than high, also makes sand time lengthening under the moulding; Simultaneously because mold thickness is thick, and influence the sand mo(u)ld exhaust, and the thick position of mold thickness is easily because of being subjected to afterheat of casting few, cause the collapsibility of sand poor, the sand at these positions still has very high intensity when unpacking, and causes the time-consuming consumption power of knockout work of unpacking, and influences production efficiency and product quality.

The utility model content

The utility model is very big for solving existing foundry goods sandbox local location mold thickness, placer iron causes cost of idleness and present situation such as the time-consuming consumption power of knockout work of unpacking and a kind of mold thickness that makes of providing is even than high, sand mold is defeated and dispersed easily, and iron ball is filled in the work such as knockout and sand processing of unpacking easily.

The utility model is to solve the problems of the technologies described above the concrete technical scheme that is adopted to be: a kind of filling iron ball, filling ball are the cored iron spherical structure that is provided with hollow cavity, and the ball wall of filling ball is provided with several perforates.Perforate is that hand is taken and provided convenience, and utilizes hollow iron ball to come the big space of filling sand mo(u)ld mold thickness, uniform mold thickness is arranged around can making foundry goods, reduces the use amount of sand, reduces cost, and it is unimpeded also to be beneficial in the sand mold exhaust; Cast out a considerable amount of hollow iron balls in advance and be placed on the moulding working region, during moulding as running into the big position of mold thickness, earlier down behind a certain amount of facing sand, just fill with hollow filling iron ball, sand under while filling utilizes the filling iron ball to play support reinforcing to sand mo(u)ld, reaches the arbor effect; Be convenient to improve knockout when unpacking and improve the operating efficiency that sand is handled, this iron ball of back of unpacking reclaims to be reused.

As preferably, the structure of the aperture of described perforate for expanding to inwall from external wall.Taking of convenient finger, perforate can increase the caking property of molding sand and iron ball.

As preferably, described perforate quantity is 8 of 3 ∽.The convenient finger of perforate take carry out iron ball put and take out operation into.

As preferably, the opening diameter of described perforate is 15～30mm.

As preferably, the thickness of described ball wall is 3～10mm.

As preferably, the sphere diameter of described filling ball is 150～300mm.

The beneficial effects of the utility model are: the use amount that can reduce molding sand, can allow around the foundry goods mold thickness more even, it is even more ideal to eat the sand effect, reduce defective generations such as pore shrinkage porosite, and can when unpacking, effectively improve the operating efficiency that knockout and sand are handled, this the hollow iron ball of back of unpacking simultaneously can also reclaim repeated use, reduces sand amount use cost.

Description of drawings:

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the structural representation that the utility model is filled iron ball.

Fig. 2 is the working region use structural representation that the utility model is filled iron ball.

The specific embodiment

Among Fig. 1, the embodiment shown in Figure 2, a kind of filling iron ball, filling ball 1 is for being provided with the cored iron ball structure of hollow cavity 2, and the ball wall 3 of filling ball 1 is provided with several perforates 31.The structure of the aperture of described perforate 31 for expanding to inwall from external wall.The perforate quantity of described perforate 31 is 6, and the convenient finger of perforate is vied for the ball and placed or take out, and the caking property that strengthens molding sand and iron ball; The outer bore dia of the perforate of perforate 31 is 20mm, and the thickness of ball wall 3 is 6mm, and the sphere diameter of filling ball 1 is 200mm.

In the use, cast out a considerable amount of filling iron balls 1 earlier, when moulding, mould 20 surfaces have after the suitable mold thickness, in big zone 30 (see figure 2)s of remaining mold thickness, to fill iron ball 1 and place, and utilize the alternate filling of hollow iron ball and molding sand to save the molding sand raw material, it is even also to reach mold thickness.Each position sand is subjected to the effect of afterheat of casting equably behind the casting pouring, resin, curing agent lose cementation, sand mold loses intensity and is defeated and dispersed, handle and conveniently to produce effect at unpack back knockout and sand, and this filling iron ball of back of unpacking can reclaim repeated use, also can use the hollow iron ball of filling of different size specifications simultaneously according to the back-up sand demand of reality.

Claims

1. fill iron ball for one kind, it is characterized in that: filling ball (1) is for being provided with the cored iron ball structure of hollow cavity (2), and the ball wall (3) of filling ball (1) is provided with several perforates (31).

2. according to the described filling iron ball of claim 1, it is characterized in that: the structure of the aperture of described perforate (31) for expanding to inwall from the spheroid outer wall.

3. according to claim 1 or 2 described filling iron balls, it is characterized in that: the perforate quantity of described perforate (31) is 8 of 3 ∽.

4. according to the described filling iron ball of claim 3, it is characterized in that: the outer bore dia of the perforate of described perforate (31) is 15～30mm.

5. according to claim 1 or 2 described filling iron balls, it is characterized in that: the thickness of described ball wall (3) is 3～10mm.

6. according to claim 1 or 2 described filling iron balls, it is characterized in that: the sphere diameter of described filling ball (1) is 150～300mm.