Mud core supporting mechanism used in process of casting cylinder body through resin sand

Abstract

The utility model relates to the technical field of supporting mechanisms, and discloses a supporting mechanism for a loam core in the process of casting a cylinder body by resin sand, which comprises a base, a fixed frame is fixedly arranged on the side wall of the base, a movable frame is arranged above the base, a connecting groove is arranged on the fixed frame, a rotating rod is movably arranged in the connecting groove, and the rotating rod is connected with the movable frame. The right side of the movable frame is in threaded connection with the rotating rod, a movable block is arranged on the movable frame, sliding grooves are formed in the two sides of the movable frame, the two ends of the movable block can be movably clamped into the sliding grooves, and threaded rods are movably installed at the two ends of the movable block. The threaded rod is rotated through the holding block, the threaded rod can drive the clamping block to move to clamp and fix the tail of the loam core, then the rotating rod is controlled to rotate through the crank, the movable frame can be controlled through the rotating rod to drive the loam core to move downwards into the mold groove, and at the moment, the tail of the loam core is fixed; therefore, the situation that impact force and buoyancy force are generated on the loam core during molten metal casting, and consequently the loam core shifts is avoided.

Description

Technical Field

[0001] This utility model relates to the field of support mechanism technology, and in particular to a support mechanism for the core of a resin sand casting cylinder. Background Technology

[0002] In the casting process, cores are the core components used to form internal cavities or complex structures in castings, and they have significant advantages, especially in resin sand casting. Resin sand casting is often used to produce castings with complex shapes, such as engine blocks. Cores are used here to form internal cavities in castings, such as water passages and oil passages in the cylinder block.

[0003] When casting the cylinder body, pouring molten metal into the mold will generate a large impact force and buoyancy on the core, which may cause the core to shift. Therefore, a support mechanism is needed to fix the core and prevent it from shifting during casting, which could lead to casting failure. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a support mechanism for the core during resin sand casting of cylinder bodies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A support mechanism for the core in resin sand casting of a cylinder includes a base, a fixed frame fixedly installed on the side wall of the base, a movable frame arranged above the base, a connecting groove on the fixed frame, a rotating rod movably installed in the connecting groove, a threaded connection between the right side of the movable frame and the rotating rod, a movable block arranged on the movable frame, sliding grooves on both sides of the movable frame, both ends of the movable block being movably engaged in the sliding grooves, threaded rods movably installed at both ends of the movable block, threaded connections between the threaded rods and the movable block, a gripping block fixedly installed at the outer end of the threaded rod, a clamping block arranged at the inner end of the threaded rod, and limit grooves equidistantly opened on the top of the movable frame, with a limit structure fixedly installed on the movable block at the corresponding position of the limit groove.

[0007] As a further embodiment of this utility model, the limiting structure includes a fixed cover, a limiting rod, a stop block, and a spring. The fixed cover is fixedly installed on the top of the movable block, the limiting rod is movably installed in the fixed cover, the bottom end of the limiting rod penetrates the movable block and extends to the top of the movable frame, and the bottom end of the limiting rod can be engaged in the limiting groove. The stop block is movably installed inside the fixed cover and is fixedly installed on the side wall of the limiting rod. A spring is fixedly installed between the top of the stop block and the inner wall of the fixed cover.

[0008] As a further embodiment of this utility model, a connecting block is fixedly installed on the back of the clamping block, and a rotating ring is fixedly installed on the top of the inner end of the threaded rod, with the rotating ring movably installed in the connecting block.

[0009] As a further embodiment of this utility model, the top of the base is provided with a movable groove, in which a bidirectional screw is movably installed. Fixing blocks are provided at both ends of the bidirectional screw, and the fixing blocks are threadedly connected to the bidirectional screw. The patterns at both ends of the bidirectional screw are opposite. A control handle is movably installed on the right outer side of the base corresponding to the position of the bidirectional screw, and the control handle is fixedly connected to the right end of the bidirectional screw.

[0010] As a further embodiment of this utility model, the side wall of the fixed frame is provided with a slot, and a locking block is fixedly installed on the movable frame at the position corresponding to the slot, and the locking block can be movably locked into the slot.

[0011] As a further embodiment of this utility model, a crank handle is provided on the top of the fixing frame, and the top of the rotating rod penetrates the fixing frame and is fixedly connected to the crank handle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, by rotating the threaded rod with the gripping block, the threaded rod can drive the clamping block to move and clamp and fix the tail of the core. Then, by controlling the rotation of the rotating rod with the crank handle, the movable frame can be controlled to move the core down into the mold groove. At this time, the tail of the core is fixed, thereby avoiding the impact force and buoyancy on the core during the pouring of molten metal, which would cause the core to shift. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the core support mechanism for resin sand casting cylinder body proposed in this utility model.

[0015] Figure 2 This is a partial internal structural diagram of the core support mechanism for resin sand casting cylinder body proposed in this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged view of section B in the middle.

[0018] In the diagram: 1. Base; 2. Fixed frame; 3. Movable frame; 4. Movable block; 5. Threaded rod; 6. Clamping block; 7. Movable groove; 8. Double-acting screw; 9. Fixed block; 10. Connecting groove; 11. Rotating rod; 12. Crank handle; 13. Grip block; 14. Control handle; 15. Slide groove; 16. Limiting groove; 17. Slot; 18. Locking block; 19. Fixed cover; 20. Limiting rod; 21. Stop block; 22. Spring; 23. Connecting block; 24. Rotating ring. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figure 1 - Figure 4 A support mechanism for the core of a resin sand casting cylinder includes a base 1, a fixed frame 2 fixedly installed on the side wall of the base 1, a movable frame 3 arranged above the base 1, a connecting groove 10 opened on the fixed frame 2, a rotating rod 11 movably installed in the connecting groove 10, a threaded connection between the right side of the movable frame 3 and the rotating rod 11, a movable block 4 arranged on the movable frame 3, sliding grooves 15 opened on both sides of the movable frame 3, both ends of the movable block 4 can be movably engaged in the sliding grooves 15, threaded rods 5 movably installed at both ends of the movable block 4, threaded connection between the threaded rods 5 and the movable block 4, a gripping block 13 fixedly installed at the outer end of the threaded rod 5, a clamping block 6 arranged at the inner end of the threaded rod 5, a limit groove 16 equidistantly opened on the top of the movable frame 3, and a limit structure fixedly installed on the movable block 4 at the position corresponding to the limit groove 16.

[0023] In this embodiment, the limiting structure includes a fixed cover 19, a limiting rod 20, a stop block 21, and a spring 22. The fixed cover 19 is fixedly installed on the top of the movable block 4. The limiting rod 20 is movably installed in the fixed cover 19. The bottom end of the limiting rod 20 penetrates the movable block 4 and extends to the top of the movable frame 3. The bottom end of the limiting rod 20 can be inserted into the limiting groove 16. The stop block 21 is movably installed inside the fixed cover 19 and is fixedly installed on the side wall of the limiting rod 20. A spring 22 is fixedly installed between the top of the stop block 21 and the inner wall of the fixed cover 19. By pulling the limiting rod 20 out of the limiting groove 16, the movable block 4 can move left and right on the movable frame 3, thereby controlling the core to move left and right in the mold and quickly adjusting its position. After the position is determined, the limiting rod 20 is released, and the spring 22 will drive the limiting rod 20 to reset and lock back into the limiting groove 16 to fix the movable frame 3.

[0024] In this embodiment, a connecting block 23 is fixedly installed on the back of the clamping block 6, and a rotating ring 24 is fixedly installed on the top of the inner end of the threaded rod 5. The rotating ring 24 is movably installed in the connecting block 23. The clamping block 6 is movably connected to the threaded rod 5 through the connecting block 23 and the rotating ring 24. Since the threaded rod 5 is threadedly connected to the movable block 4, the threaded rod 5 can drive the clamping block 6 to move left and right when it rotates. At the same time, the clamping block 6 cannot drive the threaded rod 5 to rotate, which can prevent the clamping block 6 from loosening during clamping.

[0025] In this embodiment, a movable groove 7 is provided on the top of the base 1, and a bidirectional screw 8 is movably installed in the movable groove 7. Fixing blocks 9 are provided at both ends of the bidirectional screw 8, and the fixing blocks 9 are threadedly connected to the bidirectional screw 8. The patterns at both ends of the bidirectional screw 8 are opposite. A control handle 14 is movably installed on the right outer side of the base 1 corresponding to the position of the bidirectional screw 8. The control handle 14 is fixedly connected to the right end of the bidirectional screw 8. By rotating the control handle 14, the bidirectional screw 8 is driven to control the fixing blocks 9 to clamp and fix the two sides of the mold on the base 1.

[0026] In this embodiment, the side wall of the fixed frame 2 is provided with a slot 17, and a block 18 is fixedly installed on the movable frame 3 at the position corresponding to the slot 17. The block 18 can be moved into the slot 17. The stability of the movable frame 3 can be further improved by the cooperation between the block 18 and the slot 17.

[0027] In this embodiment, a crank handle 12 is provided on the top of the fixed frame 2, and the top of the rotating rod 11 penetrates the fixed frame 2 and is fixedly connected to the crank handle 12. The crank handle 12 controls the rotation of the rotating rod 11, and the rotating rod 11 can control the downward movement of the movable frame 3.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, the mold is placed on the base 1, and then the control handle 14 is rotated to drive the bidirectional screw 8 to control the fixing block 9 to clamp and fix the two sides of the mold on the base 1. Then, the tail of the core is moved between the two clamping blocks 6, and then the threaded rod 5 is rotated by the gripping block 13. Since the clamping block 6 is movably connected to the threaded rod 5 through the connecting block 23 and the rotating ring 24, the threaded rod 5 can drive the clamping block 6 to move and clamp and fix the tail of the core. Then, the crank handle 12 is used to control the rotation of the core. Rotating rod 11 can control the movable frame 3 to move the core down into the mold groove. At this time, the tail of the core is fixed, thereby avoiding the impact and buoyancy of the core during the casting of molten metal, which would cause the core to shift. By pulling the limiting rod 20 out of the limiting groove 16, the movable block 4 can move left and right on the movable frame 3, thereby controlling the core to move left and right in the mold and quickly adjusting its position. After the position is determined, the limiting rod 20 is released, and the spring 22 will drive the limiting rod 20 to reset and lock it back into the limiting groove 16 to fix the movable frame 3.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A resin sand casting cylinder core supporting mechanism at the time of molding, comprising a base (1), characterized in that, A fixed frame (2) is fixedly installed on the side wall of the base (1). A movable frame (3) is provided above the base (1). A connecting groove (10) is provided on the fixed frame (2). A rotating rod (11) is movably installed in the connecting groove (10). The right side of the movable frame (3) is threadedly connected to the rotating rod (11). A movable block (4) is provided on the movable frame (3). Slide grooves (15) are provided on both sides of the movable frame (3). The two ends of the movable block (4) can be movably inserted into the slide grooves (15). Threaded rods (5) are movably installed on both ends of the movable block (4). Threaded rods (5) are threadedly connected to the movable block (4). A gripping block (13) is fixedly installed on the outer end of the threaded rod (5). A clamping block (6) is provided on the inner end of the threaded rod (5). Limiting grooves (16) are provided at equal intervals on the top of the movable frame (3). A limiting structure is fixedly installed on the movable block (4) at the position corresponding to the limiting grooves (16).

2. The support mechanism for the core in resin sand casting of a cylinder body according to claim 1, characterized in that, The limiting structure includes a fixed cover (19), a limiting rod (20), a stop block (21), and a spring (22). The fixed cover (19) is fixedly installed on the top of the movable block (4). The limiting rod (20) is movably installed in the fixed cover (19). The bottom end of the limiting rod (20) penetrates the movable block (4) and extends to the top of the movable frame (3). The bottom end of the limiting rod (20) can be inserted into the limiting groove (16). The stop block (21) is movably installed in the fixed cover (19). The stop block (21) is fixedly installed on the side wall of the limiting rod (20). A spring (22) is fixedly installed between the top of the stop block (21) and the inner wall of the fixed cover (19).

3. The support mechanism for the core in resin sand casting of a cylinder body according to claim 1, characterized in that, A connecting block (23) is fixedly installed on the back of the clamping block (6), and a rotating ring (24) is fixedly installed on the top of the inner end of the threaded rod (5). The rotating ring (24) is movably installed in the connecting block (23).

4. The support mechanism for the core during resin sand casting of a cylinder body according to claim 1, characterized in that, The top of the base (1) is provided with a movable groove (7), in which a bidirectional screw (8) is movably installed. The two ends of the bidirectional screw (8) are provided with fixing blocks (9), and the fixing blocks (9) are threadedly connected to the bidirectional screw (8). The two ends of the bidirectional screw (8) have opposite textures. A control handle (14) is movably installed on the right outer side of the base (1) corresponding to the position of the bidirectional screw (8). The control handle (14) is fixedly connected to the right end of the bidirectional screw (8).

5. The core support mechanism for resin sand casting cylinder bodies according to claim 1, characterized in that, The side wall of the fixed frame (2) is provided with a slot (17), and a card block (18) is fixedly installed on the movable frame (3) at the position corresponding to the slot (17). The card block (18) can be moved into the slot (17).

6. The support mechanism for the core during resin sand casting of a cylinder body according to claim 1, characterized in that, The top of the fixed frame (2) is provided with a crank handle (12), and the top of the rotating rod (11) passes through the fixed frame (2) and is fixedly connected to the crank handle (12).

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