Arc core-pulling structure

Abstract

The utility model discloses an arc core-pulling structure, and belongs to the technical field of casting. The device mainly comprises a supporting assembly, the supporting assembly comprises a mold and a mold cavity, and the mold cavity is formed in the upper end of the mold; and the core pulling assembly comprises a rotating disc, a supporting rod, a wheel disc, a rotating ring, a connecting rod, a lantern ring, a movable rod and a sliding block, the rotating disc is rotationally connected to the center of the interior of the mold, the supporting rod is fixedly connected to the center of the upper end of the rotating disc, and the wheel disc is fixedly connected to the top end of the supporting rod. According to the arc core pulling structure, by rotating the wheel disc, the wheel disc drives the supporting rod to rotate, the supporting rod is driven by the wheel disc to rotate at the upper end of the mold, the supporting rod rotates to drive the rotating ring to rotate through the threaded structure, the rotating ring rotates to drive the connecting rod to move, and the connecting rod drives the lantern ring to move; therefore, the two groups of sliding blocks simultaneously keep the same rotation frequency in the die cavity, and the precision is high.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of casting, in particular to a circular-arc core-pulling structure. BACKGROUND

[0002] Casting is a manufacturing process in which molten metal or alloy is poured into a pre-made mold to form the desired parts or products after cooling and solidification, which is used to produce various metal parts. The circular-arc core-pulling technology is mainly used to manufacture parts with arc-shaped holes or channels, such as pipes, cranks and elbows, etc.

[0003] A swing rod type circular-arc core-pulling structure is disclosed in Chinese Patent No. CN220880499U. The technical problem of the existing circular-arc core-pulling structure is that the corresponding product circular-arc is too large during the core-pulling process, and in order to improve the product quality, a complex gear structure is provided inside, which is prone to internal gear damage and increases production cost. The technical solution is a swing rod type circular-arc core-pulling structure comprising a machine body and a shell. It also includes a mold assembly, a core-pulling assembly and a circular-arc seat. The shell is sleeved on the outside of the machine body. An embedded groove is formed in the inside of the machine body. The embedded groove is provided with a mold assembly for shaping the casting part, a core-pulling assembly for core-pulling the center of the casting part, and a circular-arc seat for providing a motion track for the core-pulling assembly. The transmission rod and the swing rod are combined to replace the gear structure on the existing device, which makes the circular-arc core-pulling structure more simple and saves production cost.

[0004] However, in the above-mentioned scheme, when the cylinder simultaneously drives the connecting rods to move, the lack of accuracy in the stroke of the cylinder causes the two groups of connecting rods to move different distances, which leads to differences in the core-pulling and filling distances.

[0005] Therefore, it is necessary to provide a circular-arc core-pulling structure to solve the above-mentioned problems.

[0006] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0007] Based on the above-mentioned problems existing in the prior art, the present application aims to provide a circular-arc core-pulling structure that can rotate the wheel disc, drive the support rod to rotate, rotate the support rod on the upper end of the mold under the drive of the rotating disc, drive the rotating ring to rotate through the threaded structure, drive the connecting rod to move under the rotation of the rotating ring, and move the sleeve ring under the drive of the connecting rod, so that the two groups of sliding blocks maintain the same rotation frequency inside the mold cavity, and the precision is high.

[0008] The technical scheme adopted by the present application to solve its technical problems is: an arc core-pulling structure, comprising:

[0009] A support assembly comprises a mold and a mold cavity, and the mold cavity is arranged at the upper end of the mold;

[0010] A core-pulling assembly comprises a rotating disc, a support rod, a wheel disc, a rotating ring, a connecting rod, a sleeve ring, a movable rod and a sliding block, the rotating disc is rotationally connected to the central position inside the mold, the support rod is fixedly connected to the upper end central position of the rotating disc, the wheel disc is fixedly connected to the top end position of the support rod, the rotating ring is threadedly connected to the outer surface of the support rod at both ends, the connecting rod is fixedly connected to the outer side of the rotating ring, the sleeve ring is fixedly connected to the outer end of the connecting rod, the movable rod is sleeved to the inner position of the sleeve ring, and the sliding block is slidingly connected to the inner two side positions of the mold cavity.

[0011] Further, the support assembly further comprises a base, and the mold is fixedly connected to the upper end central position of the base.

[0012] Further, the movable rod extends upwardly through the inner upper end of the sliding block, and opposite threaded structures are arranged at the outer surface of the support rod.

[0013] Further, the rotating ring has a threaded structure arranged opposite to the support rod, and the support rod extends upwardly through the inner upper end of the mold.

[0014] Further, the adjusting assembly comprises a through hole, a movable block, a top plate, a sliding groove and a movable disc, the through hole is arranged at the upper end central position of the sliding block, the movable block is slidingly connected to the inner position of the sliding block, the top plate is fixedly connected to the outer end of the movable block, the sliding groove is arranged at the upper end central position of the movable block, and the movable disc is fixedly connected to the bottom end of the movable rod.

[0015] Further, corresponding threaded structures are arranged on the inner surface of the through hole and the outer surface of the movable rod, and the top plate is respectively attached to the inner side of the sliding groove at both sides.

[0016] Further, the sliding groove is arranged opposite to the movable disc, and the movable disc is located at the inner upper end of the sliding block.

[0017] The arc core-pulling structure provided by the present application has the following beneficial effects: by rotating the wheel disc, the wheel disc drives the support rod to rotate, the support rod rotates on the upper end of the mold under the driving of the rotating disc, the support rod drives the rotating ring to rotate through the threaded structure, the rotating ring drives the connecting rod to move, the connecting rod drives the sleeve ring to move, so that the two groups of sliding blocks simultaneously maintain the same rotation frequency inside the mold cavity, and the precision is high.

[0018] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of the present application provide further understanding of the present application, the illustrative embodiments thereof, and explanations for the present application, and do not constitute an improper limitation of the present application.

[0020] In the drawings:

[0021] Figure 1 A schematic diagram of the overall structure of an arc core-pulling structure in the present application;

[0022] Figure 2 A schematic diagram of the structure of a support assembly in the present application; Figure 1

[0023] A schematic diagram of the structure of a core-pulling assembly in the present application; Figure 3 Figure 1 A schematic diagram of the structure of a regulating assembly in the present application.

[0024] Figure 4 Figure 1 A schematic diagram of the structure of a regulating assembly in the present application.

[0025] In the drawings, various reference signs represent:

[0026] 11, base; 12, mold; 13, mold cavity; 21, rotating disc; 22, support rod; 23, wheel disc; 24, rotating ring; 25, connecting rod; 26, collar; 27, movable rod; 28, sliding block; 31, through hole; 32, movable block; 33, top plate; 34, sliding groove; 35, movable disc. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0029] As shown in the drawings, the present application provides an arc core-pulling structure, which comprises: Figures 1-3

[0030] ​​​The supporting assembly comprises a mold 12 and a mold cavity 13, and the mold cavity 13 is arranged at the upper end of the mold 12.

[0031] The core-pulling assembly comprises a rotating disc 21, a supporting rod 22, a wheel disc 23, a rotating ring 24, a connecting rod 25, a sleeve ring 26, a movable rod 27 and a sliding block 28, the rotating disc 21 is rotationally connected to the central position inside the mold 12, the supporting rod 22 is fixedly connected to the upper end central position of the rotating disc 21, the wheel disc 23 is fixedly connected to the top end position of the supporting rod 22, the rotating ring 24 is threadedly connected to the outer surface of the supporting rod 22, the connecting rod 25 is fixedly connected to the outer side position of the rotating ring 24, the sleeve ring 26 is fixedly connected to the outer end position of the connecting rod 25, the movable rod 27 is sleeved to the inner position of the sleeve ring 26, and the sliding block 28 is slidingly connected to the inner two side positions of the mold cavity 13.

[0032] The rotating disc 21 is used for supporting the supporting rod 22, the supporting rod 22 is used for supporting the wheel disc 23 and the rotating ring 24, the wheel disc 23 is used for driving the supporting rod 22 to rotate, the rotating ring 24 is used for driving the connecting rod 25 to rotate, the connecting rod 25 is used for driving the sleeve ring 26 to rotate, the sleeve ring 26 is used for driving the movable rod 27 to rotate, the movable rod 27 is used for driving the sliding block 28 to rotate along the mold cavity 13, and the sliding block 28 is used for core-pulling.

[0033] The supporting assembly further comprises a base 11, and the mold 12 is fixedly connected to the upper end central position of the base 11.

[0034] The base 11 is used for supporting the mold 12, and the mold cavity 13 is used for placing a core-pulling part.

[0035] The movable rod 27 extends upwardly through the inner upper end of the sliding block 28, and opposite threaded structures are arranged on the outer surface of the supporting rod 22.

[0036] When the supporting rod 22 rotates, the supporting rod 22 drives the rotating disc 21 to rotate, and the rotating disc 21 and the supporting rod 22 are coaxial with the mold cavity 13.

[0037] The rotating ring 24 has a threaded structure arranged on the inner surface thereof relative to the supporting rod 22, and the supporting rod 22 extends upwardly through the inner upper end of the mold 12.

[0038] When the supporting rod 22 rotates, the supporting rod 22 can drive the rotating ring 24 to rotate and move up and down through the threaded structure.

[0039] Working principle: when the slider 28 needs to move the same distance inside the mold cavity 13, by applying a rotating force to the wheel disc 23, the wheel disc 23 drives the support rod 22 to rotate, the support rod 22 drives the rotating disc 21 to rotate inside the mold 12, and the support rod 22 rotates to drive the rotating ring 24 to rotate along the support rod 22 and move in the opposite direction, the rotating ring 24 rotates to drive the connecting rod 25 to rotate along the center of the mold cavity 13, the connecting rod 25 rotates to drive the movable rod 27 to rotate, and the movable rod 27 drives the slider 28 to rotate inside the mold cavity 13, that is, the two groups of sliders 28 rotate inside the mold cavity 13 at the same frequency, with high precision.

[0040] Please refer to Figure 4 The embodiment shown is based on the above embodiment, further comprising:

[0041] The adjusting assembly comprises a through hole 31, a movable block 32, a top plate 33, a sliding groove 34 and a movable disc 35. The through hole 31 is formed in the central position of the upper end of the slider 28. The movable block 32 is slidingly connected to the inner position of the slider 28. The top plate 33 is fixedly connected to the outer end position of the movable block 32. The sliding groove 34 is formed in the central position of the upper end of the movable block 32. The movable disc 35 is fixedly connected to the bottom end position of the movable rod 27.

[0042] The through hole 31 is used to place the movable rod 27. The movable block 32 is used to support the top plate 33. The top plate 33 is used for core pulling. The sliding groove 34 is used to place the movable disc 35. The movable disc 35 is used to limit the movable block 32.

[0043] The inner surface of the through hole 31 and the outer surface of the movable rod 27 are provided with corresponding thread structures, and the two sides of the top plate 33 are respectively attached to the inner sides of the sliding grooves 34.

[0044] The movable rod 27 can rotate inside the through hole 31 and be fixed inside the through hole 31 through the thread structure.

[0045] The sliding groove 34 is formed relative to the movable disc 35, and the movable disc 35 is located at the upper end position inside the slider 28.

[0046] When the bottom end of the movable disc 35 and the bottom end inside the sliding groove 34 are in contact, the movable disc 35 applies downward pressure to the sliding groove 34, so that the movable block 32 is fixed inside the slider 28.

[0047] Working principle: when the core pulling stroke needs to be adjusted, the movable rod 27 is rotated upward, the movable rod 27 is driven upward by the threaded structure, the upward movement of the movable rod 27 drives the movable disc 35 to move upward, the movable disc 35 and the movable block 32 are separated, the movable disc 35 does not limit the movable block 32, a moving force is applied to the movable block 32 again, the movable block 32 rotates along the inside of the sliding block 28, the movement of the movable block 32 drives the top plate 33 to move, when the top plate 33 moves to the required position, the movable rod 27 is reversely rotated, the movable rod 27 drives the movable disc 35 to move downward, the downward movement of the movable disc 35 exerts downward pressure on the movable block 32, that is, the movable block 32 is fixed in the inside of the sliding block 28, so that the position of the top plate 33 is fixed, at this time, the distance between the top plate 33 and the sliding block 28 is changed, that is, the core pulling stroke is changed.

[0048] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Various modifications and changes can be made by those skilled in the art based on the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A circular arc core-pulling structure characterized by comprising: Include: Supporting assembly, the supporting assembly includes a mold (12) and a mold cavity (13), the mold cavity (13) is opened in the upper end position of mold (12); The core pulling assembly includes a rotating disc (21), a support rod (22), a wheel disc (23), a rotating ring (24), a connecting rod (25), a sleeve ring (26), a movable rod (27) and a slider (28), the rotating disc (21) is rotatably connected to the central position inside the mold (12), the support rod (22) is fixedly connected to the upper end central position of the rotating disc (21), the wheel disc (23) is fixedly connected to the top end position of the support rod (22), the rotating ring (24) is threadedly connected to the outer surface of the support rod (22) both ends position, the connecting rod (25) is fixedly connected to the outer side position of the rotating ring (24), the sleeve ring (26) is fixedly connected to the outer end position of the connecting rod (25), the movable rod (27) is sleeved in the inner position of the sleeve ring (26), and the slider (28) is slidably connected to the inner two side positions of the mold cavity (13).

2. The arc core-pulling structure according to claim 1, wherein The supporting assembly further includes a base (11), and the mold (12) is fixedly connected to the upper end central position of the base (11).

3. The arc core-pulling structure according to claim 1, wherein The movable rod (27) extends upwardly through the inner upper end of the slider (28), and opposite threaded structures are formed in the outer surface of the support rod (22) both sides.

4. The arc core-pulling structure according to claim 1, wherein The rotating ring (24) has a threaded structure formed in the inner surface thereof relative to the support rod (22), and the support rod (22) extends upwardly through the inner upper end of the mold (12).

5. The arc core-pulling structure according to claim 1, wherein Further include adjusting assembly, the adjusting assembly includes a through hole (31), a movable block (32), a top plate (33), a sliding groove (34) and a movable disc (35), the through hole (31) is formed in the upper end central position of the slider (28), the movable block (32) is slidably connected to the inner position of the slider (28), the top plate (33) is fixedly connected to the outer end position of the movable block (32), the sliding groove (34) is formed in the upper end central position of the movable block (32), and the movable disc (35) is fixedly connected to the bottom end position of the movable rod (27).

6. The arc core-pulling structure according to claim 5, wherein The through hole (31) inner surface and movable rod (27) outer surface are formed with corresponding threaded structures, and the top plate (33) two sides are respectively and the sliding groove (34) inner side are fitted.

7. The arc core-pulling structure according to claim 5, wherein The sliding groove (34) is formed relative to the movable disc (35), and the movable disc (35) is located in the inner upper end position of the slider (28).

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