CN213856925U

CN213856925U - Core box mold

Info

Publication number: CN213856925U
Application number: CN202022594961.3U
Authority: CN
Inventors: 修海涛; 官祥增; 叶瑞华
Original assignee: Longyan Longxiang Machinery Equipment Manufacturing Co ltd
Current assignee: Longyan Longxiang Machinery Equipment Manufacturing Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-08-03
Anticipated expiration: 2030-11-11

Abstract

The utility model provides a core box mould, which comprises an upper mould, a lower mould, an upper thimble plate and a lower thimble plate; a plurality of upper ejector rod through holes are formed in the cavity of the upper die; a plurality of upper reset holes are formed in the frame of the upper die; the cross section of each upper footing is T-shaped, and the two upper footings are fixed on two sides of the upper surface of the upper die; the lower end of the reset rod is a long rod, the upper end of the reset rod is provided with a supporting surface, and the reset rod is downwards inserted into the upper reset hole; the supporting surface is contacted with the upper ejector plate; the upper ejector plate is provided with a plurality of upper ejector rods matched with the through holes of the upper ejector rods, when the bottom end of the long rod at the lower end of the reset rod is flush with the frame of the upper die, the upper surface of the upper ejector plate is contacted with the upper bottom feet, and the top ends of the upper ejector rods are completely attached to the cavity of the upper die; the beneficial effects of the utility model are that simple structure, convenient to use has solved the problem that concave point, bump appear easily in traditional preparation, avoids follow-up maintaining the core, effectively reduces the cost.

Description

Core box mold

Technical Field

The utility model relates to a core box mould.

Background

The core box mold is a process device for manufacturing core sand into a mold core; can be made of wood, plastic, metal or other materials; when designing a core box, determining core box materials and the structural form thereof according to the characteristics of the core, production batch, production conditions and other factors; the ejector plate has a plurality of ejector pins for with core knockout core box, current ejector pin structure is complicated, and generally for processing in the later stage core box mould for ejector pin and die cavity surface laminating, will laminate totally and hardly realize (especially the die cavity surface is the curved surface), the die cavity surface is done out to the ejector pin slightly, can make the core sand concave point appear, otherwise, the bump can appear in the core sand, the later stage is maintained very troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned defect, providing a simple structure's core box mould, and make ejector pin and die cavity surface laminate completely.

The utility model adopts the following technical scheme:

a core box die comprises an upper die, a lower die, an upper ejector plate and a lower ejector plate; a plurality of upper ejector rod through holes are formed in the cavity of the upper die; a plurality of upper reset holes are formed in the frame of the upper die; the cross section of each upper footing is T-shaped, and the two upper footings are fixed on two sides of the upper surface of the upper die; the lower end of the reset rod is a long rod, the upper end of the reset rod is provided with a supporting surface, and the reset rod is downwards inserted into the upper reset hole; the supporting surface is contacted with the upper ejector plate; and the upper ejector plate is provided with a plurality of upper ejector rods matched with the through holes of the upper ejector rods, the bottom end of the long rod at the lower end of the reset rod is flush with the frame of the upper die, the upper surface of the upper ejector plate is in contact with the upper bottom feet, and the top ends of the upper ejector rods are completely attached to the upper die cavity.

A plurality of lower ejector rod through holes are formed in the cavity of the lower die; a plurality of lower reset holes are formed in the frame of the lower die; the cross section of each lower foot is in an inverted T shape, and the two lower feet are fixed on two sides below the lower die; the reset rod is upwards inserted into the lower reset hole; the supporting surface is contacted with the lower ejector plate; the lower ejector plate is provided with a plurality of lower ejector rods matched with the through holes of the lower ejector rods, the bottom end of the long rod at the lower end of the reset rod is flush with the frame of the lower die, the upper surface of the lower ejector plate is in contact with the lower bottom feet, and the top ends of the lower ejector rods are completely attached to the lower die cavity.

Preferably, a plurality of the upper ejector rod through holes are distributed according to actual requirements; and a plurality of lower ejector rod through holes are distributed according to actual requirements.

Preferably, the plurality of upper reset holes are distributed around the upper die frame according to actual requirements; and a plurality of lower reset holes are distributed around the lower die frame according to actual requirements.

The beneficial effects of the utility model are that simple structure, convenient to use has solved the problem that concave point, bump appear easily in traditional preparation, avoids follow-up maintaining the core, has effectively reduced time cost and cost of labor.

Drawings

Fig. 1 is a schematic view of the mold closing of the present invention.

Fig. 2 is a schematic diagram of the mold splitting of the present invention.

Fig. 3 is a schematic view of the present invention.

Detailed Description

In order to make the purpose and technical solution of the present invention clearer, the following description is made with reference to the accompanying drawings and embodiments to further explain the present invention:

a core box die shown in fig. 1-2 comprises an upper die 1, a lower die 2, an upper ejector plate 3 and a lower ejector plate 4; a plurality of upper ejector rod through holes 11 are formed in the cavity of the upper die 1; a plurality of upper reset holes 12 are formed in the frame of the upper die 1; the cross section of each upper footing 13 is T-shaped, and the two upper footings 13 are fixed on two sides of the upper surface of the upper die 1; the lower end of the reset rod 5 is a long rod 51, the upper end of the reset rod 5 is provided with a supporting surface 52, and the reset rod 5 is downwards inserted into the upper reset hole 12; the support surface 52 is in contact with the upper ejector plate 3; go up thimble board 3, be equipped with a plurality of go up the ejector pin through-hole 11 complex a plurality of ejector pins 31 go up the stock 51 bottom of release link 5 lower extreme with go up the frame of mould 1 when level, go up thimble board 3 upper surface with go up footing 13 contact, and a plurality of go up the top of ejector pin 31 all with go up the mould cavity and laminate completely.

A plurality of lower ejector rod through holes 21 are formed in the cavity of the lower die 2; a plurality of lower reset holes 22 are formed in the frame of the lower die; the cross section of each lower footing 23 is inverted T-shaped, and the two lower footings 23 are fixed on two sides of the lower surface of the lower die 2; the reset rod 5 is inserted into the lower reset hole 22 upwards; the support surface 52 is in contact with the lower ejector plate 4; lower thimble board 4 is equipped with a plurality of lower ejector pins 41 of lower ejector pin through-hole 21 complex the stock 51 bottom of 5 lower extremes of release link with when the frame of lower mould 2 is leveled, lower ejector pin board 3 upper surface with footing 23 contact down, and a plurality of the top of lower ejector pin 41 all with the die cavity of lower mould 2 is laminated completely.

Preferably, the plurality of upper ejector rod through holes are uniformly distributed according to actual requirements; a plurality of lower ejector pin through-holes are according to the comparatively even distribution of actual demand.

Preferably, the plurality of upper reset holes are uniformly distributed around the upper die frame according to actual requirements; a plurality of lower reset holes are distributed on the periphery of the lower die frame uniformly according to actual requirements.

This novel so can make the top of going up ejector pin 31 all with go up the mould cavity and laminate completely, the top of lower ejector pin 41 all with 2 die cavities of lower mould laminate completely, because adopt following preparation method: as shown in fig. 3, before the lower die 2 is opened, a plurality of lower mandril through holes 21 are punched in advance; the lower ejector plate 4 is correspondingly provided with a plurality of lower ejector rods 41 matched with the plurality of lower ejector rod through holes 21, a plurality of ejector blocks 6 are arranged between the lower ejector plate and the lower ejector plate, the whole body is put into a processing center (not shown in the figure) to be subjected to die sinking, after the die sinking is carried out, the top surfaces of the plurality of lower ejector rods 41 are completely attached to a cavity surface (whether curved surfaces exist or not), the plurality of ejector blocks 6 are taken down at the moment, a plurality of lower reset holes are processed, a plurality of reset rods are processed, the reset rods are inserted into the lower reset holes one by one, upper and lower bottom feet are welded, so that the upper surface of the lower ejector plate 3 is contacted with the lower bottom feet when the bottom ends of the long rods at the lower ends of the reset rods are flush with the frame of the lower die, and the upper surface of the lower ejector plate is just consistent with the position when the processing center opens the die; the processing of the upper die and the upper ejector plate is the same as the above and is not described in detail.

The utility model discloses the use does: when the upper die and the lower die are assembled, the top ends of the plurality of upper ejector rods 31 are completely attached to the cavity of the upper die 1, and the top ends of the plurality of lower ejector rods 41 are completely attached to the cavity of the lower die 2; the core shooter injects into the cavity formed by the upper die and the lower die through the core shooting hole, and the core is ejected by pressing the upper ejector plate and the lower ejector plate during die parting; above-mentioned compound die divides mould to adopt equipment such as hydraulic means for this trade conventional operation, this is novel do not do the repeated description.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", 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 to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The components adopted by the utility model are all universal standard components or components known by the technicians in the field, and the structure and the principle of the components are known by the technicians through technical manuals or conventional experimental methods.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still belong to the protection scope of the present invention.

Claims

1. The core box mold comprises an upper mold, a lower mold, an upper ejector plate and a lower ejector plate, and is characterized in that:

a plurality of upper ejector rod through holes are formed in the cavity of the upper die; a plurality of upper reset holes are formed in the frame of the upper die;

the cross section of each upper footing is T-shaped, and the two upper footings are fixed on two sides of the upper surface of the upper die;

the lower end of the reset rod is a long rod, the upper end of the reset rod is provided with a supporting surface, and the reset rod is downwards inserted into the upper reset hole; the supporting surface is contacted with the upper ejector plate;

the upper ejector plate is provided with a plurality of upper ejector rods matched with the through holes of the upper ejector rods, when the bottom end of the long rod at the lower end of the reset rod is flush with the frame of the upper die, the upper surface of the upper ejector plate is contacted with the upper bottom feet, and the top ends of the upper ejector rods are completely attached to the cavity of the upper die;

a plurality of lower ejector rod through holes are formed in the cavity of the lower die; a plurality of lower reset holes are formed in the frame of the lower die;

the cross section of each lower foot is in an inverted T shape, and the two lower feet are fixed on two sides below the lower die;

the reset rod is upwards inserted into the lower reset hole; the supporting surface is contacted with the lower ejector plate;

the lower ejector plate is provided with a plurality of lower ejector rods matched with the through holes of the lower ejector rods, the bottom end of the long rod at the lower end of the reset rod is flush with the frame of the lower die, the upper surface of the lower ejector plate is in contact with the lower bottom feet, and the top ends of the lower ejector rods are completely attached to the lower die cavity.

2. A core box mold as claimed in claim 1, characterized in that:

the plurality of upper ejector rod through holes are distributed according to actual requirements;

and a plurality of lower ejector rod through holes are distributed according to actual requirements.

3. A core box mould according to claim 1 or 2, characterized in that:

a plurality of upper reset holes are distributed around the upper die frame according to actual requirements;

and a plurality of lower reset holes are distributed around the lower die frame according to actual requirements.