Spliced quick-change casting sand mold

Abstract

The utility model relates to foundry production field discloses a kind of spliced quick change type casting sand mould moulds, including female die, the top of female die is provided with male die, the upper surface of male die is penetrated and is fixedly connected with feed pipe, the inner surface of male die is provided with change mechanism, the top of male die is provided with feed assembly;The change mechanism includes positioning assembly, the positioning assembly includes moving plate, the outer wall of male die is penetrated and is slidably connected in moving plate, the left surface of moving plate is fixedly connected with pressure block, the inner wall of male die right side is elastically connected with clamping block by compression spring.The utility model in, through positioning assembly and mounting assembly cooperation in change mechanism, using the effect of clamping block, compression spring and moving plate and other structures, the quick plug-in locking and disassembly of top die and bottom die can be realized, without integral replacement mould and frequent disassembly feed pipe, shorten change time, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of casting production, and in particular to a splicing type quick-change casting sand mold. Background Technology

[0002] In the casting production field, sand casting is a commonly used forming process that is widely used in the manufacturing of parts in various industrial sectors. With the increasing market demand for diversified casting products and small-batch production, the rapid changeover of casting molds has become a key link in improving production efficiency.

[0003] However, traditional molds have some problems when changing shapes.

[0004] Traditional molds often adopt an integral structure. When dealing with multi-variety production, the entire mold needs to be disassembled during the mold change process. In addition, the feed pipe needs to be frequently disassembled and reassembled during the change process, which is troublesome and cumbersome, resulting in long mold change time and low efficiency.

[0005] To address these issues, a modular, quick-change casting sand mold is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a splicing type quick-change casting sand mold, which aims to improve the problem of cumbersome mold changeover in the traditional integral structure of existing molds, resulting in long changeover time and low efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a splicing type quick-change casting sand mold, including a concave mold, a convex mold provided at the top of the concave mold, a feed pipe connected through and fixedly connected to the upper surface of the convex mold, a mold changing mechanism provided on the inner surface of the convex mold, and a feed assembly provided at the top of the convex mold.

[0008] The changing mechanism includes a positioning component, which includes a movable plate that is slidably connected to the outer wall of the punch. A pressure block is fixedly connected to the left surface of the movable plate, and a locking block is elastically connected to the inner wall of the right side of the punch via a compression spring. A positioning groove is provided on the lower surface of the locking block.

[0009] As a further description of the above technical solution:

[0010] The changing mechanism also includes an installation component, which includes a top mold inserted into the lower surface of the punch, and a bottom mold inserted into the upper surface of the die. The top mold and the bottom mold are provided with slots on their left and right sides.

[0011] As a further description of the above technical solution:

[0012] The feeding assembly includes an air collecting pipe, which is connected to the upper surface of the feeding pipe. A filter plate is fixedly connected to the inner surface of the feeding pipe, and a through groove is formed on the upper surface of the top mold.

[0013] As a further description of the above technical solution:

[0014] The left end of the card block is set as an inclined surface, the card block passes through and is slidably connected to the inner surface of the punch, the positioning groove is triangular, the top end of the pressure block is set as an inclined surface, and the pressure block is inserted into the inner wall of the positioning groove.

[0015] As a further description of the above technical solution:

[0016] The positioning components are provided in two sets, and the two sets of positioning components are symmetrically distributed on the punch and the die.

[0017] As a further description of the above technical solution:

[0018] The middle sections of the inner surfaces on both sides of the punch and die are both set as square protrusions, and the middle sections of the left and right sides of the top and bottom dies are both set as square recesses.

[0019] As a further description of the above technical solution:

[0020] The card block is inserted into the inner wall of the card slot.

[0021] As a further description of the above technical solution:

[0022] The filter plate is located below the gas collecting pipe, and the bottom ends of the through groove and the feed pipe are aligned.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by cooperating with the positioning component and the installation component in the mold changing mechanism, and utilizing the functions of the locking block, compression spring and moving plate, the top mold and bottom mold can be quickly inserted, locked and disassembled. There is no need to replace the mold as a whole and frequently disassemble and assemble the feed pipe, which shortens the mold changing time and improves production efficiency.

[0025] 2. In this utility model, the filter plate and the gas collecting pipe in the feeding assembly can effectively block air bubbles in the molten metal raw material during casting, avoiding defects such as porosity caused by residual air bubbles in the pipe, thus ensuring the quality of casting. Attached Figure Description

[0026] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0027] Figure 2This is a three-dimensional cross-sectional diagram of the punch and top die in this utility model.

[0028] Figure 3 This is a front view of the three-dimensional structure of the card block and the movable plate in this utility model;

[0029] Figure 4 This is a three-dimensional structural breakdown diagram of the top mold, bottom mold, and concave mold in this utility model;

[0030] Figure 5 This is a three-dimensional cross-sectional view of the punch, feed pipe, and air collecting pipe in this utility model.

[0031] Legend:

[0032] 1. Punch; 2. Die; 3. Feed pipe; 41. Top die; 42. Bottom die; 51. Clamping block; 52. Compression spring; 53. Pressure block; 54. Moving plate; 55. Positioning groove; 56. Slot; 61. Air collecting pipe; 62. Filter plate; 63. Through groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-2 One embodiment of this utility model is a splicing type quick-change casting sand mold, including a concave mold 2, a punch 1 is provided at the top of the concave mold 2, the concave mold 2 and the punch 1 are inserted together, a feed pipe 3 for adding molten metal raw material is connected through and fixedly connected to the upper surface of the punch 1, a changing mechanism for quick changing of the casting sand mold is provided on the inner surface of the punch 1, and a feeding component for eliminating gas in the added raw material is provided at the top of the punch 1.

[0035] Reference Figures 2-4The changing mechanism includes a positioning component, which includes a moving plate 54. The moving plate 54 is U-shaped, and the rear end of its inner surface is protruding. The moving plate 54 is slidably connected to the outer wall of the punch 1. The moving plate 54 moves up and down. A pressure block 53 is fixedly connected to the left surface of the moving plate 54. The moving plate 54 and the pressure block 53 move synchronously. A locking block 51 is elastically connected to the inner wall of the right side of the punch 1 through a compression spring 52. A positioning groove 55 for positioning the locking block 51 is opened on the lower surface of the locking block 51. The changing mechanism also includes an installation component, which includes a top mold 41. The top mold 41 is inserted into the lower surface of the punch 1. The lower surface of the top mold 41 is flush with the lower surface of the punch 1. A bottom mold 42 is inserted into the upper surface of the die 2. The upper surface of the bottom mold 42 is flush with the upper surface of the die 2. A slot 56 is opened on both the left and right sides of the top mold 41 and the bottom mold 42. The slot 56 and the locking block 51 fit together.

[0036] Reference Figures 2-4 The left end of the locking block 51 is set as an inclined surface. When the inclined surface is pressed, the locking block 51 will retract into the punch 1, releasing the obstruction. When the top die 41 and the bottom die 42 are inserted, the inclined surface of the locking block 51 will be pressed. The locking block 51 passes through and slides on the inner surface of the punch 1. The locking block 51 moves laterally. The positioning groove 55 is triangular. The top of the pressure block 53 is set as an inclined surface. The pressure block 53 is inserted into the inner wall of the positioning groove 55. When the pressure block 53 presses the inner wall of the positioning groove 55, it will drive the locking block 51 to move. Block 51 retracts to release the limit. There are two sets of positioning components, which are symmetrically distributed on the punch 1 and the die 2. The middle section of the inner surface on both sides of the punch 1 and the die 2 is set as a square protrusion, and the middle section of the left and right sides of the top die 41 and the bottom die 42 is set as a square recess. This can facilitate the quick alignment of the top die 41 and the bottom die 42. The locking block 51 is inserted into the inner wall of the slot 56 to limit the top die 41 and the bottom die 42 and ensure the stability of their installation.

[0037] Reference Figure 1 , Figure 2 , Figure 5 The feeding assembly includes a gas collecting pipe 61 for collecting blocked air bubbles. The gas collecting pipe 61 is connected to the upper surface of the feeding pipe 3. A filter plate 62 is fixedly connected to the inner surface of the feeding pipe 3. The filter plate 62 has mesh holes to block air bubbles in the molten metal raw material. A through groove 63 is opened through the upper surface of the top mold 41. The filter plate 62 is located below the gas collecting pipe 61. The through groove 63 is aligned with the bottom end of the feeding pipe 3.

[0038] Working principle: First, align the top mold 41 with the punch 1 and insert it vertically so that the square recesses on the left and right sides of the top mold 41 are connected with the square protrusions on the inner wall of the punch 1 to complete the initial alignment. Similarly, insert the bottom mold 42 into the concave mold 2 and position it through the square concave-convex structure.

[0039] When the top mold 41 and bottom mold 42 are inserted, they will press the inclined surface of the locking block 51, causing the locking block 51 to retract and release the obstruction, and press the compression spring 52 to generate a reaction force. When the locking block 51 and the slot 56 are aligned, the compression spring 52 will reset and push the locking block 51 into the slot 56, thereby locking the punch 1 and the top mold 41, and the die 2 and the bottom mold 42, ensuring stable mold installation.

[0040] When it is necessary to remove the limit and disassemble the top mold 41 or bottom mold 42, move the moving plate 54 to move the pressure block 53. The pressure block 53 will squeeze the positioning groove 55, thereby causing the locking block 51 to retract and remove the limit. Then the top mold 41 or bottom mold 42 can be removed from the punch 1 or the die 2.

[0041] During casting, molten metal raw material is poured into the mold through the feed pipe 3. When the raw material passes through the filter plate 62, the mesh structure of the filter plate 62 blocks and breaks the air bubbles in the raw material. The blocked air bubbles will rise to the surface and be collected through the air collection pipe 61 to avoid air bubble residue causing casting defects. The bottom end of the feed pipe 3 is aligned with the through groove 63 to ensure that the molten metal flows evenly into the mold cavity through the through groove 63 to complete the filling.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split quick-change casting sand mould tool comprising a female mould (2), characterised in that: The top of the die (2) is provided with a punch (1), the upper surface of the punch (1) is connected to a feed pipe (3) through and fixedly connected, the inner surface of the punch (1) is provided with a forming mechanism, and the top of the punch (1) is provided with a feeding assembly. The changing mechanism includes a positioning component, which includes a moving plate (54). The moving plate (54) is slidably connected to the outer wall of the punch (1). A pressure block (53) is fixedly connected to the left surface of the moving plate (54). A locking block (51) is elastically connected to the inner wall of the right side of the punch (1) through a compression spring (52). A positioning groove (55) is provided on the lower surface of the locking block (51).

2. The modular quick-change casting sand mold mold of claim 1, wherein: The changing mechanism also includes an installation component, which includes a top mold (41) inserted into the lower surface of the punch (1) and a bottom mold (42) inserted into the upper surface of the die (2). The top mold (41) and the bottom mold (42) are provided with slots (56) on their left and right sides.

3. The modular quick-change casting sand mold mold of claim 2, wherein: The feeding assembly includes an air collecting pipe (61), which is connected to the upper surface of the feeding pipe (3). A filter plate (62) is fixedly connected to the inner surface of the feeding pipe (3). A through groove (63) is provided on the upper surface of the top mold (41).

4. The modular quick-change casting sand mold mold of claim 1, wherein: The left end of the card block (51) is set as an inclined surface. The card block (51) is slidably connected to the inner surface of the punch (1). The positioning groove (55) is triangular. The top end of the pressure block (53) is set as an inclined surface. The pressure block (53) is inserted into the inner wall of the positioning groove (55).

5. The modular quick-change casting sand mold mold of claim 1, wherein: The positioning components are provided in two sets, and the two sets of positioning components are symmetrically distributed on the punch (1) and the die (2).

6. The modular quick-change casting sand mold mold of claim 2, wherein: The middle sections of the inner surfaces on both sides of the punch (1) and die (2) are both set as square protrusions, and the middle sections of the left and right sides of the top die (41) and bottom die (42) are both set as square recesses.

7. The modular quick-change casting sand mold mold of claim 2, wherein: The card block (51) is inserted into the inner wall of the card slot (56).

8. The modular quick-change casting sand mold mold of claim 3, wherein: The filter plate (62) is located below the gas collecting pipe (61), and the bottom ends of the through groove (63) and the feed pipe (3) are aligned.

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