Multi-station rotary stepping centrifugal machine

Abstract

The utility model discloses a multi-station rotary stepping centrifugal machine which comprises a support, a rotary driver arranged at the top of the support, a round rotary tray arranged at the top of the rotary driver, a plurality of pouring stations arranged in the annular direction on the rotary tray, centrifugal mechanisms arranged on the pouring stations, and a rotary power transmission system arranged in the center of the rotary tray. The rotary power transmission system is electrically connected with the motor, a centrifugal mechanism is arranged on each pouring station, automatic circulating feeding is achieved in the working process, and the production efficiency is improved. A rotary feeding mode is adopted, so that the unit is compact in overall structure and stable in equipment, the production takt is greatly shortened, and the production efficiency is effectively improved; and the circulating feeding rhythm can also be adjusted, so that the technological requirements of centrifugal casting can be completely met, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a multi-station rotary stepping centrifuge. Background Art

[0002] At present, the high-end casting product manufacturing industry is developing towards high-speed automation, and the production processes of parts of high-end products such as automobiles, aviation, and non-ferrous metals are also constantly improving. Due to the complex shape and special material of high-end casting products, their fluidity is poor in the liquid state, so the casting process requirements for casting parts are very high. There are many casting defects in the castings produced by the previous casting process equipment, such as sand inclusion, porosity, looseness and other defects. At the present stage, the automation degree of the pouring machine equipment and the manual pouring production line is relatively low, and most rely on manual operations for molten steel pouring. The low automation degree of the equipment greatly restricts the production efficiency.

[0003] Therefore, we propose a multi-station rotary stepping centrifuge. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-station rotary stepping centrifuge to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multi-station rotary stepping centrifuge, including a support, a rotary driver is arranged on the top of the support, a circular rotary tray is arranged on the top of the rotary driver, a plurality of pouring stations (4) arranged in a circumferential direction are arranged on the rotary tray, a centrifugal mechanism is arranged on the pouring station, the centrifugal mechanism includes a support frame fixedly installed on the rotary tray, a rotary support bearing is fixedly arranged inside the support frame, a rotating body is arranged inside the rotary support bearing, the top end of the rotating body is fixedly connected with a core barrel positioning and holding frame, a core barrel is arranged inside the core barrel positioning and holding frame, a driven wheel is assembled at the bottom end of the rotating body, a motor is also installed on the support frame, a driving wheel is equipped on the output shaft of the motor, and the driving wheel and the driven wheel are connected by belt drive.

[0006] Preferably, locking mechanisms for the core barrel are arranged on both sides of the core barrel positioning and holding frame, the locking mechanisms for the core barrel include a plurality of hydraulic cylinders symmetrically arranged on the core barrel positioning and holding frame, a wedge-shaped pressing block is arranged at the top end of the piston rod of the hydraulic cylinder, and the upper edge of the core barrel positioning and holding frame is turned outwards to form an inclined flanging that cooperates with the wedge-shaped pressing block.

[0007] Preferably, a stopper is further included. The stopper includes a foundation fixedly installed on the ground. A shifting block is provided at the top of the foundation. One end of the shifting block is movably installed on the foundation, and the other end is bent at a certain angle and extends out of the foundation. A spring is connected between one side of the bent end of the shifting block and the foundation. A stopper is provided at the bottom edge of the rotating tray, and the stopper can be in contact with the shifting block.

[0008] Preferably, a fixing block is further provided at the top of the foundation, and the fixing block is used to limit the position of the shifting block.

[0009] Preferably, a rotary power transmission system is provided at the center of the rotating tray, and the rotary power transmission system is electrically connected to the motor.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: Multiple casting stations arranged in a circumferential direction are provided on the rotating tray, and a centrifugal mechanism is provided at each casting station. During the working process, this automatic cyclic feeding method improves production efficiency; this rotary feeding method also makes the overall structure of the unit compact, the equipment stable, greatly shortens the production cycle, and effectively improves production efficiency; the cyclic feeding cycle can also be adjusted, which can fully meet the process requirements of centrifugal casting and effectively improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a structural plan view of the present utility model;

[0012] Figure 2 is Figure 1 a top view of

[0013] Figure 3 is Figure 1 a schematic structural view of the centrifugal mechanism in

[0014] Figure 4 is Figure 1 an enlarged schematic structural view of the casing locking mechanism at A in

[0015] Figure 5 is Figure 1 a three-dimensional schematic structural view of the stopper in

[0016] In the figure: 1, support; 2, rotary drive; 3, rotating tray; 4, casting station; 5, centrifugal mechanism; 5-1, support frame; 5-2, rotary support bearing; 5-3, rotating body; 5-4, casing positioning holder; 5-5, core casing; 5-6, driven wheel; 5-7, motor; 5-8, driving wheel; 5-9, belt; 6, stopper; 6-1, foundation; 6-2, shifting block; 6-3, spring; 6-4, fixing block; 7, stopper; 8, rotary power transmission system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation of the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Please refer to Figure 1-4 , the present utility model includes a support 1. A rotary driver 2 is provided on the top of the support 1. A circular rotary tray 3 is provided on the top of the rotary driver 2. A plurality of pouring stations 4 arranged in a circumferential direction are provided on the rotary tray 3. A centrifugal mechanism 5 is provided on the pouring station 4. The centrifugal mechanism 5 includes a support frame 5-1 fixedly installed on the rotary tray 3. A rotary support bearing 5-2 is fixedly provided inside the support frame 5-1. A rotating body 5-3 is provided inside the rotary support bearing 5-2. A core barrel positioning and holding frame 5-4 is fixedly connected to the top end of the rotating body 5-3. A core barrel 5-5 is provided inside the core barrel positioning and holding frame 5-4. A driven wheel 5-6 is assembled at the bottom end of the rotating body 5-3. A motor 5-7 is further installed on the support frame 5-1. A driving wheel 5-8 is equipped on the output shaft of the motor 5-7. The driving wheel 5-8 and the driven wheel 5-6 are connected by a belt 5-9 for transmission.

[0020] Specifically, in this embodiment, there are generally 3 to 10 pouring stations 4, and in this embodiment, 6 are taken as an example. The support 1 is fixed on the foundation, the rotary drive 2 is fixedly installed on the support 1 through bolts, the rotary tray 3 is fixedly installed on the rotary drive 2 through bolts, and the centrifugal mechanism 5 is fixedly installed on the pouring station 4 of the rotary tray 3 through bolts.

[0021] Both sides of the core barrel positioning holder 5-4 are provided with core barrel locking mechanisms 5-10. The core barrel locking mechanisms 5-10 include a plurality of hydraulic cylinders 5-10-1 symmetrically arranged on the core barrel positioning holder 5-4. The top end of the piston rod 5-10-2 of the hydraulic cylinder 5-10-1 is provided with a wedge-shaped pressing block 5-10-3. The upper edge of the core barrel positioning holder 5-4 is turned outwards to form an inclined flange 5-10-4 that cooperates with the wedge-shaped pressing block 5-10-3.

[0022] Specifically, in this embodiment, during the process of the hydraulic cylinder 5-10-1 driving the wedge-shaped pressing block 5-10-3 to press down, the inclined surface of the wedge-shaped pressing block 5-10-3 and the inclined surface of the inclined flange 5-10-4 are gradually pressed together, completing the process of fastening the core barrel 5-5 of the sand core to the core barrel positioning holder 5-4.

[0023] Please refer to Figure 5 , the present utility model further includes a stopper 6. The stopper 6 includes a foundation 6-1 fixedly installed on the ground. The top of the foundation 6-1 is provided with a shifting block 6-2. One end of the shifting block 6-2 is movably installed on the foundation 6-1, and the other end is bent at a certain angle and extends out of the foundation 6-1. A spring 6-3 is connected between one side of the bent end of the shifting block 6-2 and the foundation 6-1. A stop block 7 is provided at the bottom edge of the rotary tray 3, and the stop block 7 can come into contact with the shifting block 6-2.

[0024] The top of the foundation 6-1 is further provided with a fixing block 6-4, and the fixing block 6-4 is used to limit the position of the shifting block 6-2.

[0025] Specifically, in this embodiment, both ends of the shifting block 6-2 form a certain angle. One end is movably installed on the top of the foundation 6-1 through a rotating shaft. The shifting block 6-2 can rotate along the rotating shaft. The back of the other end of the shifting block 6-2 is connected to the foundation 6-1 through a spring 6-3. In this way, a ratchet mechanism is formed, which cooperates with the stop block 7 under the rotary tray 3. During the rotation process, the stopper 6 enables the rotary tray 3 to only rotate in one direction and can also accurately stop the centrifugal mechanism 5 at the pouring position. The fixing block 6-4 is installed on one side of the connecting end of the shifting block 6-2 to prevent the shifting block 6-2 from falling off during the braking process.

[0026] A rotary power transmission system 8 is provided at the center of the rotary tray 3, and the rotary power transmission system 8 is electrically connected to the motor 5-7.

[0027] The rotary power transmission system 8 is divided into a rotary part and a fixed part. The rotary part is installed on the rotary tray 9, and the fixed part is installed in the support 1.

[0028] The working principle of the present utility model is as follows:

[0029] The rotary driver 2 drives the rotary tray 3 to rotate, rotates the centrifugal mechanism 5 to be cast to the casting position, and the stopper 6 starts to work. At the same time, the rotary driver 2 stops working, so that the centrifugal mechanism 5 to be cast accurately stops at the casting position. After receiving the signal, the casting machine starts to pour molten steel. After the pouring of molten steel is completed, the casting machine transmits a signal to open the stopper 6, and the rotary driver 2 starts to work. After rotating to the next centrifugal mechanism 5 to be cast in place, the next pouring is carried out, and the cycle is repeated. Specifically, during the pouring, the equipment at the cyclic loading and unloading position cyclically loads and unloads the casting mold to complete the cyclic pouring of molten steel.

[0030] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station rotary stepping centrifuge, characterized in that: The invention comprises a support (1), a rotating drive (2) is arranged on the top of the support (1), a circular rotating tray (3) is arranged on the top of the rotating drive (2), a plurality of casting stations (4) arranged in a circular direction are arranged on the rotating tray (3), a centrifugal mechanism (5) is arranged on the casting station (4), and the centrifugal mechanism (5) comprises a support frame (5-1) fixedly mounted on the rotating tray (3), a rotating support bearing (5-2) is fixedly arranged in the support frame (5-1), and the rotating support bearing (5-2) A rotating body (5-3) is arranged inside, the top of the rotating body (5-3) is fixedly connected with a casing positioning holder (5-4), a sand core casing (5-5) is arranged inside the casing positioning holder (5-4), a driven wheel (5-6) is arranged at the bottom of the rotating body (5-3), a motor (5-7) is also installed on the support frame (5-1), a driving wheel (5-8) is arranged on the output shaft of the motor (5-7), and a belt (5-9) is connected between the driving wheel (5-8) and the driven wheel (5-6).

2. The multi-station rotary stepping centrifuge according to claim 1, characterized in that: A casing locking mechanism (5-10) is provided on both sides of the casing positioning retaining frame (5-4), and the casing locking mechanism (5-10) comprises a plurality of hydraulic cylinders (5-10-1) symmetrically arranged on the casing positioning retaining frame (5-4), a wedge-shaped pressing block (5-10-3) is provided at the top end of the piston rod (5-10-2) of the hydraulic cylinder (5-10-1), and the upper edge of the casing positioning retaining frame (5-4) is folded outward to form an inclined flange (5-10-4) matched with the wedge-shaped pressing block (5-10-3).

3. The multi-station rotary stepping centrifuge according to claim 1, characterized in that: The invention also comprises a stopper (6), wherein the stopper (6) comprises a foundation (6-1) fixedly mounted on the ground, a shifting block (6-2) is arranged on the top of the foundation (6-1), one end of the shifting block (6-2) is movably mounted on the foundation (6-1), and the other end is bent at a certain angle and extends out of the foundation (6-1), a spring (6-3) is connected between one side of the bent end of the shifting block (6-2) and the foundation (6-1), and a stopper (7) is arranged on the bottom edge of the rotating tray (3), and the stopper (7) can contact the shifting block (6-2).

4. The multi-station rotary stepping centrifuge according to claim 3, characterized in that: A fixing block (6-4) is also provided on the top of the foundation (6-1), and the fixing block (6-4) is used to limit the position of the shifting block (6-2).

5. The multi-station rotary stepping centrifuge according to claim 1, characterized in that: A rotary power transmission system (8) is provided at the center of the rotating tray (3), and the rotary power transmission system (8) is electrically connected to the motor (5-7).

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