CN222919581U

CN222919581U - A sand casting mold

Info

Publication number: CN222919581U
Application number: CN202421868566.1U
Authority: CN
Inventors: 俞继光; 俞明耀; 王怀勇; 王鹏辉
Original assignee: Xinchang Shengye Machinery Co ltd
Current assignee: Xinchang Shengye Machinery Co ltd
Priority date: 2024-08-05
Filing date: 2024-08-05
Publication date: 2025-05-30
Anticipated expiration: 2034-08-05

Abstract

The utility model provides a sand casting die which comprises an upper die and a lower die, wherein the upper die is detachably arranged on the lower die, at least two lower connecting pieces are uniformly arranged around the lower die, upper connecting pieces which can be matched with the lower connecting pieces are arranged on the upper die at positions corresponding to the lower connecting pieces, positioning holes are formed in the upper connecting pieces, positioning blocks which are matched with the positioning holes are formed in the lower connecting pieces, limiting sleeves used for positioning the upper connecting pieces are arranged on the lower connecting pieces, and limiting holes used for accommodating the upper connecting pieces and the lower connecting pieces are formed in the limiting sleeves. The sand casting mold has the advantages of simple structure, easy assembly and use, good applicability and high stability, can be suitable for sand casting, can meet the requirements of transferring and overturning, is not easy to loosen in the transferring and overturning process, and is beneficial to improving the casting effect.

Description

Sand casting mould

Technical Field

The utility model belongs to the field of casting, and particularly relates to a sand casting mold.

Background

The sand box is filled with molding sand with a sand mold, the sand box is generally divided into an upper box and a lower box, molten iron flows into the sand mold through a pouring cup and a sand inner channel arranged in the upper box, a casting is formed after cooling in the sand mold, the pouring cup is removed from the upper box, the upper box and the lower box are separated, and the casting is taken out. However, when the upper die and the lower die are in butt joint, the accuracy of butt joint is ensured, the dimensional accuracy of castings can be ensured, and high-temperature molten iron enters a casting cavity to enable a sand box to be heated and expanded, so that the upper die and the lower die are easy to displace, and the quality of castings is further affected, and therefore, the positioning and fixing between the upper die and the lower die are particularly important during casting.

The utility model of China with the prior application number 202320632369.9 discloses a casting sand box which comprises an upper die and a lower die, wherein the upper die can be placed on the lower die, a plurality of vertical positioning rods are arranged on the side wall of the upper die, a plurality of positioning hole seats are arranged on the side wall of the lower die, each positioning rod can be inserted into a corresponding positioning hole seat, a plurality of connecting fasteners are further arranged on the side wall of the upper die, each connecting fastener comprises a rotating shaft, a mounting seat, a screw rod and a nut, the mounting seat is fixedly arranged on the side wall of the upper die, the rotating shaft is hinged with the mounting seat, the middle part of the rotating shaft is vertically connected with the screw rod, the screw rod is in threaded connection with the nut, a plurality of clamping seats are further arranged on the side wall of the lower die, and the screw rod of each connecting fastener can be downwards rotated into the corresponding clamping seat.

The sand box can improve the positioning precision and the fixing reliability between the upper die and the lower die, thereby ensuring the quality of castings. However, the strength of the connecting structure between the upper die and the lower die of the sand box still has problems, and the stability of the structure is poor because the upper die and the lower die are matched with the open clamping seat only by virtue of the nuts, so that looseness can occur between the upper die and the lower die in the process of transferring or overturning the dies, the stability and the reliability of the sand box die during the whole use are affected, and the casting quality is not beneficial to improvement.

Disclosure of utility model

In view of the above, the utility model aims to provide a sand casting die, which solves the problems that the connection stability of upper and lower dies in the existing sand box is poor, the upper and lower dies are easy to loosen in the transferring or overturning process, and the casting quality is affected.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the sand casting die comprises an upper die and a lower die, wherein the upper die is detachably arranged on the lower die, at least two lower connecting pieces are uniformly arranged around the lower die, an upper connecting piece which can be matched with the lower connecting piece is arranged at the position corresponding to the lower connecting piece on the upper die, a positioning hole is formed in the upper connecting piece, a positioning block matched with the positioning hole is arranged on the lower connecting piece, a limiting sleeve used for positioning the upper connecting piece is arranged on the lower connecting piece, the limiting sleeve is detachably arranged on the lower connecting piece, a limiting hole used for accommodating the upper connecting piece and the lower connecting piece is formed in the limiting sleeve, a plug connector which can be matched with the positioning hole is arranged at the position corresponding to the limiting hole on the limiting sleeve, and the plug connector is detachably arranged on the limiting sleeve.

Furthermore, the limiting sleeve is provided with a mounting hole for mounting the plug connector, the mounting hole is communicated with the limiting hole and is arranged corresponding to the positioning hole, one end of the plug connector extends into the positioning hole, the other end of the plug connector is provided with a bolt hole, and a limiting bolt which can be matched with the bolt hole is arranged at the position, corresponding to the mounting hole, of the limiting sleeve.

Furthermore, one end of the positioning block is fixed on the lower connecting piece, and the other end of the positioning block is provided with a cone end part which is convenient to insert into the positioning hole.

Furthermore, a concave part which is convenient for the positioning block or the plug connector to extend in is arranged on the upper connecting piece corresponding to the positioning hole.

Further, one end of the limiting sleeve is provided with a handle piece.

Further, the handle piece is a T-shaped structural piece.

Further, four lower connecting pieces are uniformly arranged around the lower die, and four upper connecting pieces are arranged corresponding to the lower connecting pieces.

Compared with the prior art, the sand casting die has the following advantages:

The sand casting mold has the advantages of simple structure, easy assembly and use, good applicability and high stability, can be suitable for sand casting, can meet the requirements of transferring and overturning, is not easy to loosen in the transferring and overturning process, and is beneficial to improving the casting effect. Through utilizing locating piece and locating hole cooperation, go up connecting piece and lower connecting piece and stop collar cooperation, can realize the multiple spacing to last mould and bed die junction, ensure the stability of last mould and bed die connection, be convenient for follow-up operation such as transport to last mould and bed die. Simultaneously, through set up the bolt spare on the stop collar to utilize the bolt hole cooperation on limit bolt and the bolt spare, can make the bolt spare stable installation all the time on the stop collar, ensure that the bolt spare can last stable in inserting the locating hole of connecting piece, thereby realize the spacing to the stop collar at the connecting piece, make the stop collar can last stable play the limiting displacement to last connecting piece and lower connecting piece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a sand casting mold according to an embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of a joint between an upper die and a lower die of a sand casting die according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of an upper connector in a sand casting mold according to an embodiment of the present utility model;

Fig. 4 is a schematic structural view of a lower connector in a sand casting mold according to an embodiment of the present utility model;

Fig. 5 is a schematic structural view of a plug connector in a sand casting mold according to an embodiment of the present utility model;

Fig. 6 is a schematic structural view of a stop collar in a sand casting mold according to an embodiment of the present utility model.

Reference numerals illustrate:

1. The device comprises an upper die, a lower die, a 3, a limiting sleeve, a 4, a handle piece, a 5, an inserting piece, a6, a limiting bolt, a 7, an upper connecting piece, a 8, a lower connecting piece, a 9, a positioning hole, a 10, a positioning block, a 11, a cone end part, a 12, a concave part, a 13, a bolt hole, a 14, a threaded hole, a 15, a mounting hole, a 16 and a limiting hole.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The sand casting die comprises an upper die 1 and a lower die 2, wherein the upper die 1 is detachably arranged on the lower die 2, at least two lower connecting pieces 8 are uniformly arranged around the lower die 2, the positions, corresponding to the lower connecting pieces 8, of the upper die 1 are respectively provided with an upper connecting piece 7 which can be matched with the lower connecting pieces 8, the upper connecting pieces 7 are provided with positioning holes 9, the lower connecting pieces 8 are provided with positioning blocks 10 which are matched with the positioning holes 9, the lower connecting pieces 8 are provided with limiting sleeves 3 for positioning the upper connecting pieces 7, the limiting sleeves 3 are detachably arranged on the lower connecting pieces 8, limiting holes 16 for accommodating the upper connecting pieces 7 and the lower connecting pieces 8 are formed in the limiting sleeves 3, plug connectors 5 which can be matched with the positioning holes 9 are arranged at positions, corresponding to the limiting holes 16, and the plug connectors 5 are detachably arranged on the limiting sleeves 3.

Illustratively, the upper connector 7 is fixed to the upper die 1 and the lower connector 8 is fixed to the lower die 2, wherein the positioning block 10 is fixed to the lower connector 8. Through setting up connecting piece 7 on last mould 1 to set up locating hole 9 on last connecting piece 7, utilize locating piece 10 and locating hole 9 cooperation on the connecting piece 8 down, not only can realize the alignment cooperation of last mould 1 and bed die 2, but also can realize the horizontal spacing to last mould 1 and bed die 2 junction, prevent that last mould 1 and bed die 2 from taking place horizontal relative movement.

In the practical application process, an operator can also install the stop collar 3 on the lower connecting piece 8, and the connection between the upper connecting piece 7 and the lower connecting piece 8 is realized by utilizing the cooperation of the stop hole 16 on the stop collar 3 and the upper connecting piece 7 and the lower connecting piece 8, so that the limit of the vertical direction of the upper die 1 and the lower die 2 is realized. Through utilizing locating piece 10 and locating hole 9 cooperation, go up connecting piece 7 and lower connecting piece 8 and stop collar 3 cooperation, can realize the multiple spacing to last mould 1 and lower mould 2 junction, ensure the stability that last mould 1 and lower mould 2 are connected, be convenient for follow-up to transport, operation such as upset to last mould 1 and lower mould 2.

In addition, through setting up the junction at the mould with last connecting piece 7 and lower connecting piece 8, be favorable to improving the homogeneity of mould atress in transportation or upset in-process, avoid the junction that leads to because of the change of the quality of last mould 1 or lower mould 2 not hard up is favorable to further improving the stability of this kind of mould in the casting process.

Optionally, a mounting hole 15 for mounting the plug connector 5 is arranged on the limit sleeve 3, the mounting hole 15 is communicated with the limit hole 16, the mounting hole 15 is arranged corresponding to the positioning hole 9, one end of the plug connector 5 extends into the positioning hole 9, the other end of the plug connector 5 is provided with a bolt hole 13, and a limit bolt 6 which can be matched with the bolt hole 13 is arranged on the limit sleeve 3 corresponding to the position of the mounting hole 15.

Illustratively, the stop collar 3 is provided with a threaded hole 14 matched with the stop bolt 6, and the threaded hole 14 is communicated with the mounting hole 15. Through set up the bolt spare on stop collar 3 to utilize the bolt hole 13 cooperation on limit bolt 6 and the bolt spare, can make the bolt spare stable installation all the time on stop collar 3, ensure that the bolt spare can last stable insert in the locating hole 9 of connecting piece 7, thereby realize the spacing at last connecting piece 7 to stop collar 3, make stop collar 3 can last stable play spacing effect to last connecting piece 7 and lower connecting piece 8.

Optionally, one end of the positioning block 10 is fixed on the lower connecting piece 8, and the other end is provided with a cone end 11 which is convenient to insert into the positioning hole 9. Through setting up cone end 11, be favorable to the convenient locating hole 9 of inserting of locating piece 10, make things convenient for upper mould 1 and bed die 2 to carry out convenient assembly. In addition, the positioning holes 9 and the positioning blocks 10 are less likely to retain molding sand than other structures, and the influence of the retained molding sand on the assembly of the upper mold 1 and the lower mold 2 can be avoided.

Optionally, a recess 12 is provided on the upper connector 7 corresponding to the positioning hole 9, so as to facilitate the positioning block 10 or the plug 5 to extend into. The positioning block 10 and the plug 5 are also facilitated to be inserted into the positioning hole 9 by providing the concave portion 12.

Optionally, a handle member 4 is arranged at one end of the limit sleeve 3. Illustratively, the handle member 4 may be a T-shaped structure, where the longitudinal end of the handle member 4 is fixed to the stop collar 3, and a receiving gap for receiving a tool such as a hook is formed between the transverse end and the stop collar 3. By adopting the handle piece 4 with the T-shaped structure, an operator can conveniently move or hoist the die according to actual needs.

Optionally, four lower connecting pieces 8 are uniformly arranged around the lower die 2, and four upper connecting pieces 7 are arranged corresponding to the four lower connecting pieces 8. Through setting up four lower connecting pieces 8 and last connecting piece 7, utilize four upper connecting pieces 7 and lower connecting piece 8 cooperation, can realize the stable connection of last mould 1 and bed die 2, be favorable to further improving stability and structural strength of last mould 1 and bed die 2 junction.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The sand casting die is characterized by comprising an upper die (1) and a lower die (2), wherein the upper die (1) is detachably arranged on the lower die (2), at least two lower connecting pieces (8) are uniformly arranged around the lower die (2), the positions, corresponding to the lower connecting pieces (8), on the upper die (1) are respectively provided with an upper connecting piece (7) which can be matched with the lower connecting pieces (8), the upper connecting pieces (7) are provided with positioning holes (9), the lower connecting pieces (8) are provided with positioning blocks (10) which are matched with the positioning holes (9), the lower connecting pieces (8) are provided with limiting sleeves (3) which are used for positioning the upper connecting pieces (7), the limiting sleeves (3) are detachably arranged on the lower connecting pieces (8), the limiting sleeves (3) are provided with limiting holes (16) which are used for accommodating the upper connecting pieces (7) and the lower connecting pieces (8), the positions, corresponding to the limiting holes (16), on the limiting sleeves (3) are provided with limiting pieces (5) which can be matched with the positioning holes (9), and the plugging pieces (5) can be detachably plugged into the plugging pieces (5).

2. The sand casting die is characterized in that a mounting hole (15) for mounting the plug connector (5) is formed in the limiting sleeve (3), the mounting hole (15) is communicated with the limiting hole (16) and corresponds to the positioning hole (9), one end of the plug connector (5) stretches into the positioning hole (9), a bolt hole (13) is formed in the other end of the plug connector, and a limiting bolt (6) capable of being matched with the bolt hole (13) is arranged on the limiting sleeve (3) and corresponds to the mounting hole (15).

3. A sand casting mould according to claim 1, characterized in that one end of the positioning block (10) is fixed on the lower connecting piece (8), and the other end is provided with a cone end part (11) which is convenient to insert into the positioning hole (9).

4. A sand casting mould according to claim 1 is characterized in that a concave part (12) which is convenient for a positioning block (10) or a plug connector (5) to extend into is arranged on the upper connecting piece (7) corresponding to the positioning hole (9).

5. A sand casting mould according to claim 1, characterized in that one end of the limit sleeve (3) is provided with a handle member (4).

6. A sand casting mould according to claim 5, characterized in that the handle member (4) is a T-shaped structural member.

7. A sand casting mold according to any one of claims 1 to 6, characterized in that four lower connecting pieces (8) are uniformly arranged around the lower mold (2), and four upper connecting pieces (7) are arranged corresponding to the lower connecting pieces (8).