CN211437991U - Sand mould is used in tool bit production - Google Patents

Abstract

The utility model discloses a sand mould for producing cutter heads, which comprises a mould body, wherein the top of the mould body is provided with a casting opening and an exhaust hole, the casting opening is internally provided with a material distributing arris, two sides of the material distributing arris are respectively provided with a material supplementing bin, the casting opening and the exhaust hole are communicated through the material supplementing bin, and the lower part of the material supplementing bin is connected with a cavity, the molten steel is prevented from being spilled during pouring, the usage amount of the molten steel is saved, and the production cost is reduced.

Description

Sand mould is used in tool bit production

Technical Field

The utility model relates to a sand mould technical field specifically belongs to a sand mould is used in tool bit production.

Background

The cast iron cutter head is a part produced by a casting mode, has high strength and durability, and is not easy to break. When the cast iron cutter head is produced by adopting a casting mode, casting molding is carried out through a sand mold, after molten steel is poured into the mold, the poured molten steel needs to be excessive due to the effect of expansion with heat and contraction with cold, otherwise, the volume of the molten steel shrinks in the molding process, and insufficient pouring in a cavity can be caused. The excessive molten steel is poured to cause the waste of the molten steel, and the joint between the repair head formed by the excessive molten steel and the casting is thick, so that time and labor are wasted when the repair head is removed from the casting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sand mould is used in tool bit production overcomes prior art's is not enough.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides a sand mould is used in tool bit production, includes the mould body, the top of mould body be equipped with sprue gate and exhaust hole, the sprue gate in be equipped with and divide the material arris, the both sides of dividing the material arris be equipped with the feed supplement storehouse respectively, sprue gate and exhaust hole through feed supplement storehouse intercommunication, the below of feed supplement storehouse be connected with the die cavity.

Furthermore, the junction of the feed supplement bin and the cavity is of an inverted cone structure.

Further, sprue gate's of mould top and below be equipped with chute and blown down tank respectively, chute and blown down tank slope setting, chute on be equipped with the spread groove, the spread groove be located the edge of mould body, chute's bottom be located sprue gate department, the blown down tank on be equipped with the lug, the lug stretch out from the mould body, the lug can with the spread groove cooperation, the top of blown down tank be located the top at the sprue gate edge of one side relative with chute, the bottom of blown down tank be located the lug.

Furthermore, the chute is of a triangular cone structure, and the discharge chute is of an arc concave surface structure.

Compared with the prior art, the utility model discloses an implement the effect as follows: the mould is internally provided with two cavities, two tool bits can be cast at one time, the connecting part of the material supplementing bin and the cavities is of an inverted cone structure, so that the connecting part between the cooled material supplementing head and the tool bits is thinner, the material supplementing head is convenient to remove from the tool bits, in addition, the mould is also provided with a material flowing groove and a material discharging groove, when the mould is used, a plurality of moulds can be spliced together to continuously cast molten steel, and the moulds are connected with the connecting groove through the convex blocks, so that the molten steel is prevented from being spilled during casting, the molten steel usage is saved, and the production cost is reduced.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIGS. 1-3, a sand mould is used in tool bit production, including mould body 1, mould body 1's top is equipped with sprue gate 10 and exhaust hole 11, is equipped with branch material arris 12 in the sprue gate 10, divides the both sides of material arris 12 to be equipped with respectively and mends feed bin 2, sprue gate 10 and exhaust hole 11 are through mending feed bin 2 intercommunication, the below of mending feed bin 2 is connected with die cavity 14. Two cavities 14 are arranged in the die, two tool bits can be cast at one time, the connecting part of the material supplementing bin 2 and the cavities 14 is designed to be of an inverted cone structure, the connecting part between the cooled material supplementing head and the tool bits is thin, and the material supplementing head can be removed from the tool bits conveniently.

In addition, the material distributing edge 12 is designed in the casting opening 10, on one hand, the material distributing edge 12 has a flow distributing effect on the poured molten steel; on the other hand, the tapping edge 12 occupies the space in the pouring gate 10, so that the amount of molten steel for topping in the pouring gate 10 is reduced, and a worker can determine the amount of molten steel pouring with reference to the top of the tapping edge 12 when using the mold.

Runner gate 10's of mould top and below still are equipped with chute 4 and blown down tank 3 respectively, chute 4 and 3 slopes of blown down tank set up, chute 4 is the triangular cone structure, blown down tank 3 is arc concave surface structure, be equipped with spread groove 41 on chute 4, spread groove 41 is located the edge of mould body 1, chute 4's bottom is located runner gate 10 department, be equipped with lug 31 on blown down tank 3, lug 31 stretches out from mould body 1, lug 31 can cooperate with spread groove 41, the top of blown down tank 3 is located the top at the 10 marginal of runner gate on one side relative with chute 4, blown down tank 3's bottom is located lug 31.

When the discharging groove 3 and the material flowing groove 4 are used, a plurality of molds can be spliced together to continuously pour molten steel, and the molds are connected with each other through the convex blocks 31 and the connecting grooves 41, so that the molten steel is prevented from being spilled during pouring, the use amount of the molten steel is saved, and the production cost is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a sand mould is used in tool bit production, includes the mould body, its characterized in that: the top of mould body be equipped with sprue gate and exhaust hole, the sprue gate in be equipped with and divide the material arris, the both sides of dividing the material arris be equipped with the feed supplement storehouse respectively, sprue gate and exhaust hole through feed supplement storehouse intercommunication, the below of feed supplement storehouse be connected with the die cavity.

2. The sand mold die for producing the cutter head according to claim 1, wherein: the junction of the feed supplementing bin and the cavity is of an inverted cone structure.

3. The sand mold die for producing the cutter head according to claim 1, wherein: the top and the below of the sprue gate of mould be equipped with chute and blown down tank respectively, chute and blown down tank slope setting, chute on be equipped with the spread groove, the spread groove be located the edge of mould body, chute's bottom be located sprue gate department, the blown down tank on be equipped with the lug, the lug stretch out from the mould body, the lug can with the spread groove cooperation, the top of blown down tank be located the top at the sprue gate edge of one side relative with chute, the bottom of blown down tank be located the lug.

4. The sand mold die for the production of the cutter head according to claim 3, wherein: the material flowing groove is of a triangular cone structure, and the material discharging groove is of an arc concave surface structure.

Images