Runner core box structure of six-cylinder connected double-runner turbocharger

Abstract

The utility model discloses a runner core box structure of a six-cylinder connected double-runner turbocharger. The runner core box structure comprises a movable mold, a fixed mold is arranged at the lower end of the movable mold, a middle mold is arranged between the movable mold and the fixed mold, a mold cavity is formed in the middle of a whole formed by the movable mold, the middle mold and the fixed mold, sand boxes which are evenly distributed are slidably connected into the mold cavity, a core is arranged in the center of the mold cavity, the sand boxes and the core are installed in a matched mode, and first air cylinders are arranged at the right end and the rear end of the mold cavity. The ends, close to the center of the cavity, of piston rods of the first air cylinder and the second air cylinder are fixedly connected with drawing blocks, the ends, close to the center of the cavity, of the drawing blocks are fixedly connected with the ends, away from the center of the cavity, of the transversely adjacent sand boxes, and air ports of the first air cylinder and the second air cylinder communicate with an air outlet of an external air pump through air pipes. According to the runner core box structure of the six-cylinder connected double-runner turbocharger, the shell runner structure of the six-cylinder double-runner turbocharger is more simplified, and sand core structure parting is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of casting, in particular to a flow channel core box structure of a six-cylinder connected double-flow channel turbocharger. Background Art

[0002] The hot box is a special core box used in hot box core shooting machines. During core making, the core box is heated to a high temperature of 200-250℃ and is subjected to the erosion of core sand. Therefore, the requirements for the core box are high and the core box structure is also complex. The hot box mainly consists of the core box body, positioning mechanism, inserts, sand shooting port, as well as exhaust, heating and core ejection structures. The hot box design mainly includes: selecting the core box material; determining the box surface and designing the core box body structure; determining the form and position of the shooting port; determining the core box positioning method and core ejection method;

[0003] Generally, single-channel or single-body exhaust pipes have smaller product structures, and the core box parting and core box body are easier to design. However, the dual-channel turbocharger housing is more difficult to design than the single-channel due to its thin product structure and complex product parting. In particular, the six-cylinder dual-channel turbocharger housing has a more complex product structure. The exhaust pipe part and the turbocharger part must be considered as one, so the sand core and core box structure design is the most difficult. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a six-cylinder connected dual-flow-channel turbocharger flow channel core box structure. The six-cylinder dual-flow-channel turbocharger shell flow channel structure is more simplified, which is convenient for sand core structure parting and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a six-cylinder conjoined dual-flow-channel turbocharger flow channel core box structure, comprising a movable mold;

[0006] Movable mold: A fixed mold is provided at its lower end, and an intermediate mold is provided between the movable mold and the fixed mold. A cavity is provided in the middle of the whole composed of the movable mold, the intermediate mold and the fixed mold. The interior of the cavity is slidably connected with evenly distributed sand boxes. A core is provided at the center of the cavity. The sand boxes are installed in conjunction with the core. The flow channel structure of the six-cylinder dual-flow turbocharger housing is more simplified, which is convenient for sand core structure parting.

[0007] Furthermore, cylinder 1 is provided at the right and rear ends of the cavity, and cylinder 2 is provided at the left end of the cavity. The ends of the piston rods of cylinder 1 and cylinder 2 close to the center of the cavity are fixedly connected to pumping blocks, and the ends of the pumping blocks close to the center of the cavity are fixedly connected to the ends of the laterally adjacent sand boxes away from the center of the cavity. The air ports of cylinder 1 and cylinder 2 are connected to the air outlet of the external air pump through air pipes, providing driving force for the movement of the sand boxes.

[0008] Furthermore, the lower end of the intermediate mold is provided with three evenly distributed feed ports, the rear ends of the three feed ports are connected to the front end of the feed pipe, and the rear end of the feed pipe is connected to the mold cavity to realize the feeding of molding sand.

[0009] Furthermore, the upper end of the mold cavity is provided with evenly distributed guide rails, the lower ends of the guide rails are slidably connected to sliding seats, and the lower ends of the sliding seats are clamped with the upper ends of the vertically adjacent sand boxes to provide guidance for the movement of the sand boxes.

[0010] Furthermore, reset rods are provided at the four corners of the movable mold, the intermediate mold and the fixed mold to facilitate the reset of the movable mold.

[0011] Furthermore, evenly distributed heating tubes are provided inside the movable mold, the intermediate mold and the fixed mold to provide heat for the core making work.

[0012] Furthermore, the left and right ends of the movable mold, the middle mold and the fixed mold are provided with anti-deformation frames, and the upper end of the movable mold and the lower end of the fixed mold are fixedly connected with bent plates to ensure the firmness of the core box structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the six-cylinder conjoined dual-flow-channel turbocharger flow channel core box structure has the following advantages:

[0014] The core box body is composed of a movable mold, an intermediate mold and a fixed mold. The anti-deformation skeleton improves the firmness of the core box and prevents deformation of the intermediate mold. At the same time, it replaces the direct cooperation between the movable mold and the fixed mold, which facilitates the demolding of the sand core. Two cylinders in the X direction and one cylinder in the Y direction, a total of three cylinders, ensure that the sand core does not interfere with each other during mold opening. The flow channel structure of the six-cylinder dual-flow turbocharger housing is more simplified, which facilitates the parting of the sand core structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the cavity of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the interior of the utility model;

[0018] Figure 4 It is a schematic cross-sectional structural diagram of the right side of the present invention.

[0019] In the figure: 1 movable mold, 2 intermediate mold, 3 fixed mold, 4 cavity, 5 anti-deformation frame, 6 cylinder 1, 7 cylinder 2, 8 core, 9 extraction block, 10 sand box, 11 guide rail, 12 sliding seat, 13 reset rod, 14 feeding port, 15 feeding pipe, 16 heating pipe, 17 bending plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 , this embodiment provides a technical solution: a six-cylinder conjoined dual-flow-channel turbocharger flow channel core box structure, comprising a movable mold 1;

[0022] Movable mold 1: A fixed mold 3 is provided at its lower end, an intermediate mold 2 is provided between the movable mold 1 and the fixed mold 3, and reset rods 13 are provided through the four corners of the movable mold 1, the intermediate mold 2 and the fixed mold 3 as a whole. A cavity 4 is provided in the middle of the movable mold 1, the intermediate mold 2 and the fixed mold 3 as a whole. The interior of the cavity 4 is slidably connected with evenly distributed sand boxes 10. A core 8 is provided at the center of the cavity 4. The sand boxes 10 are all installed in conjunction with the core 8. The upper end of the cavity 4 is provided with evenly distributed guide rails 11. The lower ends of the guide rails 11 are slidably connected with sliding seats 12. The lower ends of the sliding seats 12 are clamped with the upper ends of the vertically adjacent sand boxes 10;

[0023] Among them: the right end and the rear end of the cavity 4 are both provided with a cylinder 1 6, the left end of the cavity 4 is provided with a cylinder 2 7, the ends of the piston rods of the cylinder 1 6 and the cylinder 2 7 close to the center of the cavity 4 are fixedly connected to a pumping block 9, and the ends of the pumping block 9 close to the center of the cavity 4 are fixedly connected to the ends of the laterally adjacent sand boxes 10 away from the center of the cavity 4, and the air ports of the cylinder 1 6 and the cylinder 2 7 are connected to the air outlet of the external air pump through the air pipe;

[0024] Among them: the lower end of the middle mold 2 is provided with three evenly distributed feed ports 14, the rear ends of the three feed ports 14 are connected to the front end of the feed pipe 15, the rear end of the feed pipe 15 is connected to the cavity 4, the movable mold, the middle mold and the fixed mold are connected by the reset rod 13, and then the core box structure is installed in the working area through the bent plate 11. After the installation is stable, the core 8 is placed inside the cavity 4, and then the cylinder 1 6 and the cylinder 2 7 are operated by the external air pump. The piston rods of the cylinder 1 6 and the cylinder 2 7 on the right are extended, and the corresponding ones are pushed by the horizontally adjacent pumping blocks 9. The sand box 10 moves toward the center of the mold cavity 4, and at the same time, the piston rod of the cylinder 16 on the rear side extends through the laterally adjacent pumping block 9 to push the corresponding sand box 10 toward the center of the mold cavity 4. At the same time, the sliding seats 12 slide inside the corresponding guide rails 11, providing a guide for the movement of the sand box 10, ensuring the stability of the movement of the sand box 10, and thus ensuring the accuracy of the core making work. At the same time, molding sand is fed into the feeding port 14, and the molding sand enters the interior of the mold cavity 4 through the feeding pipe 15. Then, with the cooperation of the sand box 10, the sand core molding work is realized;

[0025] Among them, the movable mold 1, the intermediate mold 2 and the fixed mold 3 are all provided with uniformly distributed heating tubes 16. Heat is supplied to the interior of the heating tubes 16, and the heat is transferred to the interior of the cavity 4, thereby realizing the hardening of the sand core. When the sand core is hardened, the movable mold 1 is taken out with the assistance of the reset rod 13, and then the piston rods of the cylinder 1 6 and the cylinder 2 7 are contracted by the external air pump, thereby causing the sand box 10 to move away from the center of the cavity 4, and then the sand core is taken out;

[0026] Among them, the left and right ends of the integral body formed by the movable mold 1, the middle mold 2 and the fixed mold 3 are provided with anti-deformation frames 5, the upper end of the movable mold 1 and the lower end of the fixed mold 3 are fixedly connected with bent plates 17, and the anti-deformation frames 5 reinforce the core box to prevent the middle mold 2 from deforming.

[0027] The working principle of the six-cylinder connected dual-flow turbocharger flow channel core box structure provided by the present invention is as follows: when working, the personnel first connect the movable mold, the middle mold and the fixed mold through the reset rod 13, and then install the core box structure in the working area through the bent plate 11. After the installation is stable, the personnel place the core 8 inside the cavity 4, and then the personnel use the external air pump to realize the operation of cylinder 1 6 and cylinder 2 7. The piston rods of cylinder 1 6 and cylinder 2 7 on the right side are extended, and both push the corresponding sand box 10 to move toward the center of the cavity 4 through the laterally adjacent pumping blocks 9. At the same time, the piston rod of cylinder 1 6 on the rear side is extended through the laterally adjacent pumping blocks 9 to push the corresponding sand box 10 to move toward the center of the cavity 4. At the same time, the sliding seat 12 all slide inside the corresponding guide rails 11, providing guidance for the movement of the sand box 10, ensuring the stability of the movement of the sand box 10, and thus ensuring the accuracy of the core making work. At the same time, molding sand is supplied to the inside of the feeding port 14, and the molding sand enters the inside of the mold cavity 4 through the feeding pipe 15, and then with the cooperation of the sand box 10, the sand core is molded. At the same time, heat is supplied to the inside of the heating tube 16, and the heat is conducted to the inside of the mold cavity 4, thereby realizing the hardening of the sand core. When the sand core is hardened, the personnel takes out the movable mold 1 with the assistance of the reset rod 13, and then realizes the contraction of the piston rods of cylinder 1 6 and cylinder 2 7 through an external air pump, thereby making the sand box 10 move away from the center of the mold cavity 4, and then takes out the sand core.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A six-cylinder twin-flow turbocharger flow channel core box structure, characterized by: including a movable mold (1); The movable mold (1) is provided with a fixed mold (3) at its lower end, an intermediate mold (2) is provided between the movable mold (1) and the fixed mold (3), a mold cavity (4) is provided in the middle of the integral body formed by the movable mold (1), the intermediate mold (2) and the fixed mold (3), the interior of the mold cavity (4) is slidably connected with uniformly distributed sand boxes (10), a core (8) is provided at the center of the mold cavity (4), and the sand boxes (10) are all installed in conjunction with the core (8).

2. The six-cylinder twin-flow turbocharger runner core box structure according to claim 1, characterized in that: The right and rear ends of the mold cavity (4) are both provided with a cylinder 1 (6), and the left end of the mold cavity (4) is provided with a cylinder 2 (7). The ends of the piston rods of the cylinder 1 (6) and the cylinder 2 (7) close to the center of the mold cavity (4) are fixedly connected to a pumping block (9), and the ends of the pumping block (9) close to the center of the mold cavity (4) are fixedly connected to the ends of the sand box (10) adjacent to the mold cavity (4) away from the center of the mold cavity (4). The air ports of the cylinder 1 (6) and the cylinder 2 (7) are both connected to the air outlet of the external air pump through the air pipe.

3. The six-cylinder twin-flow turbocharger runner core box structure according to claim 1, characterized in that: The lower end of the middle mold (2) is provided with three evenly distributed feed ports (14), the rear ends of the three feed ports (14) are connected to the front end of the feed pipe (15), and the rear end of the feed pipe (15) is connected to the mold cavity (4).

4. The six-cylinder twin-flow turbocharger runner core box structure according to claim 1, characterized in that: The upper end of the mold cavity (4) is provided with evenly distributed guide rails (11), the lower ends of the guide rails (11) are slidably connected to sliding seats (12), and the lower ends of the sliding seats (12) are clamped with the upper ends of the vertically adjacent sand boxes (10).

5. The six-cylinder twin-flow turbocharger runner core box structure according to claim 1, characterized in that: The movable mold (1), the middle mold (2) and the fixed mold (3) form a whole with four corners penetrated by reset rods (13).

6. The six-cylinder twin-flow turbocharger runner core box structure according to claim 1, characterized in that: Evenly distributed heating tubes (16) are provided inside the movable mold (1), the intermediate mold (2) and the fixed mold (3).

7. The six-cylinder twin-flow turbocharger runner core box structure according to claim 1, characterized in that: The movable mold (1), the intermediate mold (2) and the fixed mold (3) form a whole. Both left and right ends are provided with anti-deformation frames (5). The upper end of the movable mold (1) and the lower end of the fixed mold (3) are fixedly connected with bent plates (17).

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