Sand casting mold convenient to assemble

Abstract

The sand casting mold convenient to assemble comprises an upper mold body, a lower mold body and a limiting sleeve, the upper mold body is detachably installed on the lower mold body, and at least two lower connecting pieces are evenly arranged on the periphery of the lower mold body. 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 die, and the upper connecting pieces and the lower connecting pieces are matched to form a cylindrical structural piece; the limiting sleeve is provided with a circular limiting hole capable of being matched with the cylindrical structural part, and the upper die and the lower die are each provided with an assembling groove matched with the limiting sleeve. The sand casting mold convenient to assemble has the advantages of being simple in structure, easy to assemble and use and high in stability and reliability, can be suitable for sand 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 sand casting, in particular to a sand casting mould which is easy to assemble. Background Art

[0002] Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Since the molding materials used in sand casting are cheap and easy to obtain, the casting mold is easy to manufacture, and it can adapt to the single-piece production, batch production and mass production of castings, it has long been the basic process in casting production. The existing Chinese utility model patent with application number CN202220878014.3 discloses a sand casting mold that is easy to disassemble, including a casting mechanism, the casting mechanism is provided with a fixing mechanism and a positioning mechanism, the casting mechanism includes a lower mold, an upper mold movably connected to the lower mold, the fixing mechanism includes a accommodating cavity opened inside the lower mold, a fixing cylinder fixed inside the accommodating cavity, a first guide block fixed on the top of the inner wall of the accommodating cavity, a first rack movably connected to the first guide block, and a limit ring fixed to one end of the first rack. By setting up the positioning rod, fixing cylinder and other structures, the fixing effect between the molds can be improved when the molds are closed, and the molds can be prevented from loosening due to external force. When the molds are separated, the second rack is driven to move by pushing the push rod, and the first rack is driven to move by using the set gear, which can drive the limit ring to disengage from the positioning rod, thereby facilitating the rapid disassembly of the upper mold and the lower mold.

[0003] Although the existing molds can be easily disassembled, the above-mentioned structure is realized through gear cooperation, which is relatively complex and inconvenient to operate. The operator needs to operate multiple push rods to achieve disassembly, and the mold is only combined by using a limit ring and a positioning rod. There are still problems with the strength of the connection structure between the upper and lower molds, which is not conducive to the transportation or flipping of the mold, affecting the stability and reliability of the mold during use. Utility Model Content

[0004] In view of this, the utility model aims to propose a sand casting mold that is easy to assemble, so as to solve the problem that the connection structure strength between the upper and lower molds of the existing convenient disassembly sand casting mold is poor, which affects the stability and reliability of the mold during use.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A sand casting mold that is easy to assemble, comprises an upper mold, a lower mold, and a limiting sleeve, wherein the upper mold is detachably mounted on the lower mold, and at least two lower connecting pieces are evenly arranged around the lower mold, and upper connecting pieces that can cooperate with the lower connecting pieces are arranged at positions on the upper mold corresponding to the lower connecting pieces, and a cylindrical structural piece is formed after the upper connecting piece cooperates with the lower connecting piece; the limiting sleeve is provided with a circular limiting hole that can cooperate with the cylindrical structural piece, and the upper mold and the lower mold are both provided with an assembly groove that cooperates with the limiting sleeve, and at least one protrusion is provided at one end of the limiting sleeve that extends into the assembly groove, and a clamping block that can cooperate with the protrusion is arranged at a position corresponding to the assembly groove on the upper mold and / or the lower mold, and a matching gap that cooperates with the protrusion exists between the clamping block and the bottom surface of the assembly groove.

[0007] Furthermore, two of the protrusions are evenly arranged along the circumference of the limiting sleeve, and blocks that can cooperate with the protrusions are provided at positions corresponding to the assembly grooves on the upper mold and the lower mold.

[0008] Furthermore, a latch piece is provided at a position on the limiting sleeve corresponding to the clamping block, and the latch piece is slidably mounted on the limiting sleeve. The sliding direction of the latch piece is the same as the length direction of the limiting sleeve, and the clamping block is provided with a pin hole that cooperates with the latch piece.

[0009] Furthermore, the limiting sleeve is provided with an installation sleeve for installing the latch member, and one end of the latch member passing through the installation sleeve is provided with a tapered end portion for easy insertion into the pin hole, and the other end is provided with a limiting block.

[0010] Furthermore, a detachable positioning ring is provided at a position between the corresponding conical end of the latch piece and the mounting sleeve, and an elastic element is provided at a position between the corresponding positioning ring and the mounting sleeve on the latch piece, one end of the elastic element supports the positioning ring, and the other end supports the mounting sleeve.

[0011] Furthermore, the protrusion is provided with a socket that can cooperate with the latch member.

[0012] Furthermore, a handle is provided at one end of the limiting sleeve extending out of the assembly slot.

[0013] Furthermore, the handle member is a T-shaped structural member.

[0014] Furthermore, four lower connecting pieces are evenly arranged around the lower mold, and four upper connecting pieces are arranged corresponding to the lower connecting pieces.

[0015] Compared with the prior art, the sand casting mold that is easy to assemble described in the utility model has the following advantages:

[0016] The utility model discloses a sand casting mold that is easy to assemble, which has the advantages of simple structure, easy assembly and use, high stability and reliability, and can be used in sand casting, and can meet the needs of transportation and flipping. It is not easy to loosen during transportation and flipping, which is beneficial to improving the casting effect. By using the limiting hole on the limiting sleeve to cooperate with the upper connecting piece and the lower connecting piece, a stable connection between the upper mold and the lower mold can be achieved. At the same time, by using the protruding part on the limiting sleeve to cooperate with the block on the upper mold and the lower mold, the limiting sleeve is not easy to loosen or fall off, so that the limiting sleeve can continuously and stably limit the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic structural diagram of a sand casting mold that is easy to assemble according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic structural diagram of an upper mold and a lower mold connected in a sand casting mold that is easy to assemble according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a limit sleeve in a sand casting mold that is easy to assemble according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic structural diagram of a latch member in a sand casting mold that is easy to assemble according to an embodiment of the utility model;

[0022] Figure 5 for Figure 4 Exploded diagram.

[0023] Description of reference numerals:

[0024] 1. Upper mold; 2. Lower mold; 3. Limit sleeve; 4. Handle piece; 5. Latch piece; 6. Elastic element; 7. Upper connecting piece; 8. Lower connecting piece; 9. Mounting sleeve; 10. Assembly groove; 11. Block; 12. Pin hole; 13. Limit hole; 14. Protrusion; 15. Socket; 16. Limit block; 17. Conical end; 18. Positioning ring. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. 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 number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

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

[0029] A sand casting mold that is easy to assemble, such as Figures 1 to 5 As shown, it includes an upper mold 1, a lower mold 2, and a limiting sleeve 3. The upper mold 1 is detachably mounted on the lower mold 2. At least two lower connecting members 8 are evenly arranged around the lower mold 2. The positions of the upper mold corresponding to the lower connecting members 8 are provided with upper connecting members 7 that can cooperate with the lower connecting members 8. The upper connecting members 7 and the lower connecting members 8 form a cylindrical structural member after cooperation. The limiting sleeve 3 is provided with a limiting hole 13 that can cooperate with the cylindrical structural member. The upper mold 1 and the lower mold 2 are both provided with an assembly groove 10 that cooperates with the limiting sleeve 3. At least one protrusion 14 is provided at one end of the limiting sleeve 3 that extends into the assembly groove 10. The positions of the upper mold 1 and / or the lower mold 2 corresponding to the assembly groove 10 are provided with a clamping block 11 that can cooperate with the protrusion 14. There is a matching gap between the clamping block 11 and the bottom surface of the assembly groove 10 that cooperates with the protrusion 14.

[0030] Exemplarily, the upper connecting member 7 is fixed on the upper mold 1, and the lower connecting member 8 is fixed on the lower mold 2. The upper connecting member 7 and the lower connecting member 8 are aligned and matched to form a cylindrical structure, and then the limiting sleeve 3 is used to cooperate with the cylindrical structure, which can not only realize the alignment and matching of the upper mold 1 and the lower mold 2, but also realize the limit of the connection between the upper mold 1 and the lower mold 2 to prevent the upper mold 1 and the lower mold 2 from relative movement.

[0031] In actual application, the operator can also install the limiting sleeve 3 on the lower connecting member 8, and use the limiting hole 16 on the limiting sleeve 3 to cooperate with the upper connecting member 7 and the lower connecting member 8 to achieve the connection between the upper connecting member 7 and the lower connecting member 8, thereby achieving the limiting of the upper mold 1 and the lower mold 2. Then, the operator can rotate the limiting sleeve 3 so that the protrusion 14 on the limiting sleeve 3 is inserted into the matching gap between the clamping block 11 and the bottom surface of the assembly groove 10, thereby achieving the limiting of the limiting sleeve 3 on the mold, ensuring the stability of the connection between the upper mold 1 and the lower mold 2, and the operation is very simple, reducing the difficulty of assembling between the upper mold 1 and the lower mold 2, and facilitating the subsequent transportation, flipping and other operations of such a mold.

[0032] In addition, by arranging the upper connecting member 7 and the lower connecting member 8 at the connection of the mold, it is helpful to improve the uniformity of the force applied to the mold during transportation or flipping, avoid loosening of the connection due to changes in the mass of the upper mold 1 or the lower mold 2, and help further improve the stability of the mold during the casting process.

[0033] Optionally, two protrusions 14 are evenly arranged along the circumference of the limiting sleeve 3, and the positions corresponding to the assembly grooves 10 on the upper mold 1 and the lower mold 2 are provided with blocks 11 that can cooperate with the protrusions 14. Exemplarily, two blocks 11 are also provided correspondingly, and are respectively fixed on the upper mold 1 and the lower mold 2, and the blocks 11 are provided corresponding to the assembly grooves 10. By providing two protrusions 14 on the limiting sleeve 3, by rotating the limiting sleeve 3, the two protrusions 14 on the limiting sleeve 3 can cooperate with the blocks 11 on the upper mold 1 and the lower mold 2 respectively, which is conducive to further improving the stability of the limiting sleeve 3 on the mold, and at the same time improving the structural strength of the connection between the limiting sleeve 3 and the mold.

[0034] Optionally, a latch member 5 is provided at a position corresponding to the clamping block 11 on the limiting sleeve 3, and the latch member 5 is slidably mounted on the limiting sleeve 3, and the sliding direction of the latch member 5 is the same as the length direction of the limiting sleeve 3, and the clamping block 11 is provided with a pin hole 12 that cooperates with the latch member 5. By providing a slidable latch member 5 on the limiting sleeve 3, the operator can slide the latch member 5 and use the latch member 5 to cooperate with the pin hole 12 on the clamping block 11 to prevent the limiting sleeve 3 from rotating accidentally, and ensure that the protrusion 14 on the limiting sleeve 3 can continuously and stably cooperate with the clamping block 11 on the upper mold 1 or the lower mold 2, so as to limit the limiting sleeve 3 on the mold.

[0035] In actual application, the limiting sleeve 3 is provided with an installation sleeve 9 for installing the latch member 5, one end of the latch member 5 passing through the installation sleeve 9 is provided with a tapered end 17 for easy insertion into the pin hole 12, and the other end is provided with a limiting block 16. Exemplarily, the limiting block 16 is fixed on the latch member 5, the installation sleeve 9 is fixed on the limiting sleeve 3, and the installation sleeve 9 is provided with a through hole that matches the latch member 5.

[0036] Optionally, a removable positioning ring 18 is provided at a position between the corresponding conical end 17 of the latch 5 and the mounting sleeve 9, and an elastic element 6 is provided at a position between the corresponding positioning ring 18 and the mounting sleeve 9 on the latch 5, and one end of the elastic element 6 abuts the positioning ring 18, and the other end abuts the mounting sleeve 9. Exemplarily, the positioning ring 18 and the latch 5 can be connected by a thread, for example, the latch 5 is provided with an external thread, and the positioning ring 18 is provided with an internal thread matching the external thread. By adopting a removable positioning ring 18, the assembly of the latch 5 and the elastic element 6 is facilitated.

[0037] In actual application, the elastic element 6 can be a compression spring, one end of the compression spring presses against the positioning ring 18, and the other end presses against the mounting sleeve 9. Under the action of the restoring elastic force of the compression spring, the latch member 5 can be continuously and stably inserted into the pin hole 12 on the block 11, thereby further reducing the possibility of loosening or separation of the mold due to the rotation of the limit sleeve 3, and improving the stability and reliability of the mold during use.

[0038] Specifically, when the operator needs to disassemble the upper mold 1 and the lower mold 2, the operator can manually pull the latch 5 and compress the elastic element 6 until the latch 5 moves out of the pin hole 12 of the clamping block 11. After that, the operator can rotate the limiting sleeve 3 so that the protrusion 14 on the limiting sleeve 3 is misaligned with the clamping block 11, and then move the limiting sleeve 3 out of the assembly groove 10. At this time, it is equivalent to releasing the limiting effect of the limiting sleeve 3 on the upper connecting member 7 and the lower connecting member 8, and the operator can separate the upper mold 1 and the lower mold 2.

[0039] Similarly, if the operator needs to assemble the upper mold 1 and the lower mold 2, he only needs to assemble the limit strip into the assembly groove 10, then manually pull the latch 5, and then screw the limit sleeve 3 so that the protrusion 14 cooperates with the block 11. Finally, the operator only needs to loosen the latch 5, and the latch 5 can be inserted into the pin hole 12 on the block 11 under the action of the resetting elastic force of the elastic element 6, so as to limit the limit sleeve 3, which is very easy to operate.

[0040] Optionally, the protrusion 14 is provided with a socket 15 that can cooperate with the latch member 5. By also providing the socket 15 that cooperates with the latch member 5 on the protrusion 14, one end of the latch member 5 can pass through the block 11 and the protrusion 14 in sequence, which is conducive to further improving the limiting effect of the latch member 5 on the limiting sleeve 3 and preventing the limiting sleeve 3 from rotating accidentally.

[0041] Optionally, a handle 4 is provided at one end of the limiting sleeve 3 extending out of the assembly groove 10. Exemplarily, the handle 4 may be a T-shaped structural member, the longitudinal end of the handle 4 is fixed on the limiting sleeve 3, and there is an accommodation gap between the transverse end and the limiting sleeve 3 for accommodating tools such as hooks. By adopting the T-shaped handle 4, it is convenient for operators to move or hoist the mold according to actual needs.

[0042] Optionally, four lower connecting members 8 are evenly arranged around the lower mold 2, and four upper connecting members 7 are arranged corresponding to the lower connecting members 8. By arranging four lower connecting members 8 and the upper connecting members 7, and utilizing the cooperation of four upper connecting members 7 and the lower connecting members 8, a stable connection between the upper mold 1 and the lower mold 2 can be achieved, which is beneficial to further improve the stability and structural strength of the connection between the upper mold 1 and the lower mold 2.

[0043] The utility model discloses a sand casting mold that is easy to assemble, which has the advantages of simple structure, easy assembly and use, high stability and reliability, and can be used in sand casting, and can meet the needs of transportation and flipping. It is not easy to loosen during transportation and flipping, which is beneficial to improving the casting effect. By using the limiting hole on the limiting sleeve to cooperate with the upper connecting piece and the lower connecting piece, a stable connection between the upper mold and the lower mold can be achieved. At the same time, by using the protruding part on the limiting sleeve to cooperate with the block on the upper mold and the lower mold, the limiting sleeve is not easy to loosen or fall off, so that the limiting sleeve can continuously and stably limit the upper mold and the lower mold.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand casting mold that is easy to assemble, characterized in that: The invention comprises an upper mold (1), a lower mold (2), and a limiting sleeve (3), wherein the upper mold (1) is detachably mounted on the lower mold (2), at least two lower connecting members (8) are evenly arranged around the lower mold (2), and upper connecting members (7) that can cooperate with the lower connecting members (8) are arranged at positions on the upper mold corresponding to the lower connecting members (8), and the upper connecting members (7) and the lower connecting members (8) form a cylindrical structural member after cooperation; the limiting sleeve (3) is provided with a limiting member that can cooperate with the cylindrical structural member The upper mold (1) and the lower mold (2) are both provided with an assembly groove (10) that cooperates with the limiting sleeve (3), and one end of the limiting sleeve (3) that extends into the assembly groove (10) is provided with at least one protrusion (14), and a clamping block (11) that can cooperate with the protrusion (14) is provided at a position corresponding to the assembly groove (10) on the upper mold (1) and / or the lower mold (2), and a matching clearance that cooperates with the protrusion (14) exists between the clamping block (11) and the bottom surface of the assembly groove (10).

2. A sand casting mold that is easy to assemble according to claim 1, characterized in that: Two of the protrusions (14) are evenly arranged along the circumference of the limiting sleeve (3), and blocks (11) capable of cooperating with the protrusions (14) are provided at positions corresponding to the assembly grooves (10) on the upper mold (1) and the lower mold (2).

3. A sand casting mold that is easy to assemble according to claim 1 or 2, characterized in that: A latch member (5) is provided on the limiting sleeve (3) at a position corresponding to the clamping block (11); the latch member (5) is slidably mounted on the limiting sleeve (3); the sliding direction of the latch member (5) is the same as the length direction of the limiting sleeve (3); and a pin hole (12) matching with the latch member (5) is provided on the clamping block (11).

4. A sand casting mold that is easy to assemble according to claim 3, characterized in that: The limiting sleeve (3) is provided with a mounting sleeve (9) for mounting the latch member (5); one end of the latch member (5) passing through the mounting sleeve (9) is provided with a tapered end portion (17) for easy insertion into the pin hole (12), and the other end is provided with a limiting block (16).

5. The sand casting mold that is easy to assemble according to claim 4 is characterized in that: A detachable positioning ring (18) is provided at a position between the corresponding conical end portion (17) of the latch member (5) and the mounting sleeve (9); an elastic element (6) is provided at a position between the corresponding positioning ring (18) and the mounting sleeve (9) on the latch member (5); one end of the elastic element (6) presses against the positioning ring (18) and the other end presses against the mounting sleeve (9).

6. A sand casting mold that is easy to assemble according to claim 4 or 5, characterized in that: The protruding portion (14) is provided with a plug hole (15) which can cooperate with the latch member (5).

7. The sand casting mold that is easy to assemble according to claim 1, characterized in that: A handle piece (4) is provided at one end of the limiting sleeve (3) extending out of the assembly groove (10).

8. The sand casting mold that is easy to assemble according to claim 7, characterized in that: The handle member (4) is a T-shaped structural member.

9. The sand casting mold that is easy to assemble according to claim 1, 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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