Sand casting mold

Abstract

The utility model provides a sand mould casting mould which comprises an upper mould and a lower mould, the upper mould is detachably installed on the lower mould, at least two lower connecting pieces are evenly arranged on the periphery of the lower mould, upper connecting pieces capable of being matched with the lower connecting pieces are arranged at the positions, corresponding to the lower connecting pieces, of the upper mould, and the lower connecting pieces are matched with the upper connecting pieces. A positioning hole is formed in the upper connecting piece, and a positioning block matched with the positioning hole is arranged on the lower connecting piece; the lower connecting piece is provided with a limiting sleeve used for positioning the upper connecting piece, the limiting sleeve is detachably installed on the lower connecting piece, and the limiting sleeve is provided with limiting holes used for containing the upper connecting piece and the lower connecting piece. The sand mold casting mold has the advantages of being simple in structure, easy to assemble and use, good in applicability and high in stability, can be suitable for sand mold casting, can meet the requirements of transferring and overturning, is not prone to loosening in the transferring and overturning process, and is beneficial to improving the casting effect.

Description

Technical Field

[0001] The utility model belongs to the field of casting, and particularly relates to a sand casting mold. Background Art

[0002] 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 sprue cup installed on the upper box and a channel in the sand. After cooling in the sand mold, a casting is formed. Then, the sprue cup is removed from the upper box, and then the upper and lower boxes are separated to take out the casting. However, when the upper and lower molds are butted, it is necessary to ensure accurate butting to guarantee the dimensional accuracy of the casting. Moreover, the high-temperature molten iron enters the casting cavity, causing the sand box to expand due to heat, and the upper and lower molds are prone to displacement, thereby affecting the quality of the casting. Therefore, the positioning and fixing between the upper and lower molds during casting are particularly important.

[0003] The existing Chinese utility model with the application number 202320632369.9 discloses a casting sand box, which includes an upper mold and a lower mold. The upper mold can be placed on the lower mold. A plurality of vertical positioning rods are arranged on the side wall of the upper mold, and a plurality of positioning hole seats are arranged on the side wall of the lower mold. And each positioning rod can be inserted into the corresponding positioning hole seat; a plurality of connecting fasteners are also arranged on the side wall of the upper mold. The connecting fastener includes 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 mold. The rotating shaft is hinged to the mounting seat. The middle part of the rotating shaft is vertically connected to the screw rod. The screw rod is threadedly connected to the nut. A plurality of clamping seats are also arranged on the side wall of the lower mold. And the screw rod of each connecting fastener can be rotated downward into the corresponding clamping seat.

[0004] Although the above sand box can improve the positioning accuracy and fixing reliability between the upper and lower molds, thereby guaranteeing the quality of the casting. However, there are still problems with the connection structure strength between the upper and lower molds of the above sand box. Since only relying on the cooperation of the nut and the open clamping seat, the structural stability is not good. During the transportation or flipping process of the mold, the upper and lower molds may become loose, affecting the stability and reliability of the overall use of the sand box mold and being not conducive to improving the casting quality. Summary of the Utility Model

[0005] In view of this, the utility model aims to provide a sand casting mold to solve the problem that the connection stability between the upper and lower molds in the existing sand box is not good, and it is easy to become loose during the transportation or flipping process, affecting the casting quality.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A sand casting mold includes an upper mold and a lower mold. The upper mold is detachably installed on the lower mold. At least two lower connectors are evenly arranged around the lower mold. Upper connectors capable of cooperating with the lower connectors are provided at positions corresponding to the lower connectors on the upper mold. Positioning holes are provided on the upper connectors, and positioning blocks cooperating with the positioning holes are provided on the lower connectors. A limiting sleeve for positioning the upper connector is provided on the lower connector. The limiting sleeve is detachably installed on the lower connector. A limiting hole for accommodating the upper connector and the lower connector is provided on the limiting sleeve. A plug-in member capable of cooperating with the positioning hole is provided at a position corresponding to the limiting hole on the limiting sleeve. The plug-in member is detachably installed on the limiting sleeve.

[0008] Further, an installation hole for installing the plug-in member is provided on the limiting sleeve. The installation hole communicates with the limiting hole and is arranged corresponding to the positioning hole. One end of the plug-in member extends into the positioning hole, and a pin hole is provided at the other end. A limiting bolt capable of cooperating with the pin hole is provided at a position corresponding to the installation hole on the limiting sleeve.

[0009] Further, one end of the positioning block is fixed on the lower connector, and a tapered end for facilitating insertion into the positioning hole is provided at the other end.

[0010] Further, a recess for facilitating the positioning block or the plug-in member to extend into is provided at a position corresponding to the positioning hole on the upper connector.

[0011] Further, a handle member is provided at one end of the limiting sleeve.

[0012] Further, the handle member is a T-shaped structural member.

[0013] Further, four lower connectors are evenly arranged around the lower mold, and four upper connectors are provided corresponding to the lower connectors.

[0014] Compared with the prior art, the sand casting mold of the present utility model has the following advantages:

[0015] A sand casting mold according to the present utility model has the advantages of simple structure, easy assembly and use, good applicability, and high stability. It can be applied to sand casting and can meet the needs of transportation and flipping. It is not easy to loosen during the transportation and flipping processes, which is beneficial to improving the casting effect. By using the cooperation of the positioning block and the positioning hole, and the cooperation of the upper connecting piece and the lower connecting piece with the limiting sleeve, multiple limitings of the connection between the upper mold and the lower mold can be achieved, ensuring the stability of the connection between the upper mold and the lower mold, and facilitating subsequent operations such as transporting and flipping the upper mold and the lower mold. At the same time, by arranging a pin member on the limiting sleeve and using the cooperation of the limiting bolt and the pin hole on the pin member, the pin member can be always stably installed on the limiting sleeve, ensuring that the pin member can continuously and stably insert into the positioning hole of the upper connecting piece, thereby realizing the limitation of the limiting sleeve on the upper connecting piece, and enabling the limiting sleeve to continuously and stably play a limiting role on the upper connecting piece and the lower connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0017] Figure 1 is a schematic structural diagram of a sand casting mold according to an embodiment of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the connection between the upper mold and the lower mold of a sand casting mold according to an embodiment of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the upper connecting piece of a sand casting mold according to an embodiment of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the lower connecting piece of a sand casting mold according to an embodiment of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the plug-in piece of a sand casting mold according to an embodiment of the present utility model;

[0022] Figure 6 is a schematic structural diagram of the limiting sleeve of a sand casting mold according to an embodiment of the present utility model.

[0023] Description of the reference numerals:

[0024] 1. Upper die; 2. Lower die; 3. Limiting sleeve; 4. Handle part; 5. Plug-in part; 6. Limiting bolt; 7. Upper connecting part; 8. Lower connecting part; 9. Positioning hole; 10. Positioning block; 11. Tapered end; 12. Concave part; 13. Pin hole; 14. Threaded hole; 15. Mounting hole; 16. Limiting hole. Detailed implementation mode

[0025] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0028] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] A sand casting mold, as Figures 1 to 6As shown in the figure, it includes an upper die 1 and a lower die 2. The upper die 1 is detachably installed on the lower die 2. At least two lower connectors 8 are evenly arranged around the lower die 2. Upper connectors 7 that can cooperate with the lower connectors 8 are provided at the positions corresponding to the lower connectors 8 on the upper die 1. Positioning holes 9 are provided on the upper connectors 7, and positioning blocks 10 that cooperate with the positioning holes 9 are provided on the lower connectors 8. A limiting sleeve 3 for positioning the upper connector 7 is provided on the lower connector 8. The limiting sleeve 3 is detachably installed on the lower connector 8. A limiting hole 16 for accommodating the upper connector 7 and the lower connector 8 is provided on the limiting sleeve 3. A plug-in member 5 that can cooperate with the positioning hole 9 is provided at the position corresponding to the limiting hole 16 on the limiting sleeve 3. The plug-in member 5 is detachably installed on the limiting sleeve 3.

[0030] Exemplarily, the upper connector 7 is fixed on the upper die 1, and the lower connector 8 is fixed on the lower die 2. Among them, the positioning block 10 is fixed on the lower connector 8. By providing the upper connector 7 on the upper die 1 and providing the positioning hole 9 on the upper connector 7, and using the positioning block 10 on the lower connector 8 to cooperate with the positioning hole 9, not only can the alignment and cooperation of the upper die 1 and the lower die 2 be realized, but also the horizontal limit at the connection of the upper die 1 and the lower die 2 can be realized, preventing the upper die 1 and the lower die 2 from moving horizontally relative to each other.

[0031] In the actual application process, the operator can also install the limiting sleeve 3 on the lower connector 8, and use the limiting hole 16 on the limiting sleeve 3 to cooperate with the upper connector 7 and the lower connector 8 to realize the connection between the upper connector 7 and the lower connector 8, so as to realize the vertical limit of the upper die 1 and the lower die 2. By using the cooperation of the positioning block 10 and the positioning hole 9, and the cooperation of the upper connector 7 and the lower connector 8 with the limiting sleeve 3, multiple limits at the connection of the upper die 1 and the lower die 2 can be realized, ensuring the stability of the connection between the upper die 1 and the lower die 2, and facilitating subsequent operations such as transporting and flipping the upper die 1 and the lower die 2.

[0032] In addition, by arranging the upper connector 7 and the lower connector 8 at the connection of the die, it is beneficial to improve the uniformity of the force during the transportation or flipping of the die, avoid loosening at the connection caused by changes in the quality of the upper die 1 or the lower die 2, and is beneficial to further improve the stability of this die during the casting process.

[0033] Optionally, an installation hole 15 for installing the plug-in member 5 is provided on the limiting sleeve 3. The installation hole 15 is communicated with the limiting hole 16 and is arranged corresponding to the positioning hole 9. One end of the plug-in member 5 extends into the positioning hole 9, and a pin hole 13 is provided at the other end. A limiting bolt 6 that can cooperate with the pin hole 13 is provided at the position corresponding to the installation hole 15 on the limiting sleeve 3.

[0034] Exemplarily, the limit sleeve 3 is provided with a threaded hole 14 that cooperates with the limit bolt 6, and the threaded hole 14 communicates with the mounting hole 15. By providing a pin member on the limit sleeve 3 and using the cooperation between the limit bolt 6 and the pin hole 13 on the pin member, the pin member can be stably mounted on the limit sleeve 3 all the time, ensuring that the pin member can be continuously and stably inserted into the positioning hole 9 of the upper connecting member 7, thereby realizing the limitation of the limit sleeve 3 on the upper connecting member 7, so that the limit sleeve 3 can continuously and stably limit the upper connecting member 7 and the lower connecting member 8.

[0035] Optionally, one end of the positioning block 10 is fixed to the lower connecting member 8, and the other end is provided with a tapered end portion 11 that is convenient for inserting into the positioning hole 9. By providing the tapered end portion 11, it is beneficial for the positioning block 10 to be conveniently inserted into the positioning hole 9, facilitating the convenient assembly of the upper die 1 and the lower die 2. In addition, compared with other structures, it is less likely for molding sand to remain at the positioning hole 9 and the positioning block 10, which can avoid the influence of the remaining molding sand on the assembly of the upper die 1 and the lower die 2.

[0036] Optionally, a recessed portion 12 is provided at the position of the upper connecting member 7 corresponding to the positioning hole 9, which is convenient for the positioning block 10 or the plug-in member 5 to extend into. By providing the recessed portion 12, it is also beneficial for the positioning block 10 and the plug-in member 5 to be inserted into the positioning hole 9.

[0037] Optionally, one end of the limit sleeve 3 is provided with a handle member 4. Exemplarily, the handle member 4 can adopt a T-shaped structural member. The longitudinal end of the handle member 4 is fixed to the limit sleeve 3, and there is a receiving gap between the transverse end and the limit sleeve 3 for receiving tools such as hooks. By adopting the T-shaped handle member 4, it is convenient for the operator to move or hoist such a die according to actual needs.

[0038] Optionally, four lower connecting members 8 are evenly arranged around the lower die 2, and four upper connecting members 7 are correspondingly arranged for the lower connecting members 8. By providing four lower connecting members 8 and upper connecting members 7, and using the cooperation of the four upper connecting members 7 and lower connecting members 8, the stable connection between the upper die 1 and the lower die 2 can be realized, which is beneficial to further improve the stability of the connection between the upper die 1 and the lower die 2 and the structural strength.

[0039] A sand casting mold according to the present utility model has the advantages of simple structure, easy assembly and use, good applicability, and high stability. It can be applied to sand casting and can meet the needs of transportation and flipping. It is not easy to loosen during the transportation and flipping processes, which is beneficial to improving the casting effect. By using the cooperation of the positioning block and the positioning hole, and the cooperation of the upper connecting piece and the lower connecting piece with the limiting sleeve, multiple limit positions can be achieved at the connection of the upper mold and the lower mold, ensuring the stability of the connection between the upper mold and the lower mold, and facilitating subsequent operations such as transporting and flipping the upper mold and the lower mold. At the same time, by providing a pin member on the limiting sleeve and using the limiting bolt to cooperate with the pin hole on the pin member, the pin member can be always stably installed on the limiting sleeve, ensuring that the pin member can be continuously and stably inserted into the positioning hole of the upper connecting piece, thereby realizing the limitation of the limiting sleeve on the upper connecting piece, and enabling the limiting sleeve to continuously and stably play a limiting role on the upper connecting piece and the lower connecting piece.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sand casting mold, characterized in that: The invention comprises an upper mold (1) and a lower mold (2), wherein the upper mold (1) is detachably mounted on the lower mold (2), at least two lower connecting pieces (8) are evenly arranged around the lower mold (2), and upper connecting pieces (7) that can cooperate with the lower connecting pieces (8) are arranged at positions on the upper mold (1) corresponding to the lower connecting pieces (8), the upper connecting pieces (7) are provided with positioning holes (9), and the lower connecting pieces (8) are provided with positioning blocks (10) that cooperate with the positioning holes (9); The lower connecting member (8) is provided with a limiting sleeve (3) for positioning the upper connecting member (7); the limiting sleeve (3) is detachably mounted on the lower connecting member (8); the limiting sleeve (3) is provided with a limiting hole (16) for accommodating the upper connecting member (7) and the lower connecting member (8); a plug-in connector (5) capable of cooperating with the positioning hole (9) is provided at a position on the limiting sleeve (3) corresponding to the limiting hole (16); the plug-in connector (5) is detachably mounted on the limiting sleeve (3).

2. A sand casting mold according to claim 1, characterized in that: The limiting sleeve (3) is provided with a mounting hole (15) for mounting the plug-in component (5); the mounting hole (15) is communicated with the limiting hole (16), and the mounting hole (15) is arranged corresponding to the positioning hole (9); one end of the plug-in component (5) extends into the positioning hole (9), and the other end is provided with a latch hole (13); a limiting bolt (6) capable of cooperating with the latch hole (13) is provided at a position corresponding to the mounting hole (15) on the limiting sleeve (3).

3. A sand casting mold 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 (11) for easy insertion into the positioning hole (9).

4. A sand casting mold according to claim 1, characterized in that: A recessed portion (12) is provided at a position on the upper connecting member (7) corresponding to the positioning hole (9) to facilitate the positioning block (10) or the plug-in member (5) to extend therein.

5. A sand casting mold according to claim 1, characterized in that: A handle piece (4) is provided at one end of the limiting sleeve (3).

6. A sand casting mold 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 evenly arranged around the lower mold (2), and four upper connecting pieces (7) are arranged corresponding to the lower connecting pieces (8).

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