Pouring nozzle of vacuum static pouring equipment

Abstract

The utility model relates to a pouring nozzle of vacuum static pouring equipment, which is structurally characterized in that an air cylinder is fixedly connected onto an air cylinder fixing seat, a piston rod at the bottom of the air cylinder is connected with a blanking moving shaft, a through hole is formed in the center of the blanking moving shaft, and the upper end of the through hole is communicated with a radial feeding joint; a vertical discharging port is formed in the lower end of the through hole, a material stopping block which elastically acts upwards is arranged at the discharging port, and the bottom face of the material stopping block makes contact with the discharging port. When the material stopping block is in a sealed state, the center of the bottom face of the material stopping block is lower than the bottom face of the discharging port, and when the discharging moving shaft moves downwards to the limiting position, the material stopping block makes contact with a limiting block of external pouring equipment. The pouring nozzle is sealed through a spring pressure structure, the sealing performance is good, discharging is smooth, and the problem of material liquid leakage caused by pressure change in the lifting process is solved.

Description

Technical Field

[0001] The utility model relates to a pouring nozzle of vacuum static pouring equipment and belongs to the technical field of vacuum static pouring equipment. Background Art

[0002] As is known to all, movable multi-station pouring nozzles are often used in static pouring systems. Such movable multi-station pouring nozzles usually include a pouring valve needle moving cylinder and an integral device moving cylinder, and discharge materials through the cavity between the pouring valve needle and the outer sealing seat.

[0003] The disadvantages of this type of structure are that it requires more pneumatic components and actuators, the structure is complex, the cavity becomes smaller during the upward movement, and pressure is generated during the movement, resulting in poor sealing of the pouring nozzle and material leakage. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a pouring nozzle of a vacuum static pouring device, which adopts a spring pressure structure for sealing, not only has good sealing performance, but also has smooth material discharge, and will not cause the problem of liquid leakage due to pressure changes during the lifting process.

[0005] In order to solve the above problems, the specific technical scheme of the utility model is as follows: a pouring nozzle of a vacuum static pouring equipment, a cylinder is fixedly connected to a cylinder fixing seat, a piston rod at the bottom of the cylinder is connected to a material discharge moving shaft, a through hole is provided in the center of the material discharge moving shaft, and the upper end of the through hole is connected to a radial feed joint; a vertical discharge port is provided at the lower end of the through hole, and a stop block which elastically moves upward is provided at the discharge port, and the bottom surface of the stop block is in contact with the discharge port; when the stop block is in a sealed state, the center of its bottom surface is lower than the bottom surface of the discharge port, and when the material discharge moving shaft moves down to the limit position, the stop block contacts with the limit block of the external pouring equipment.

[0006] The stopper block has a conical structure at the lower end; the lower end of the movable shaft is sealed and connected to the sealing seat, and a conical hole is provided at the bottom of the sealing seat as a discharge port. The conical surface at the lower end of the stopper block contacts and seals with the conical hole at the bottom of the sealing seat.

[0007] A trigger rod is arranged at the bottom center of the blocking block, and the trigger rod extends out from the discharge port of the sealing seat.

[0008] A step limit platform is provided at the lower end of the through hole of the unloading movable shaft, a horizontal plate is provided on the step limit platform, a through hole is provided at the center of the horizontal plate, a sliding rod is slidably connected in the through hole, the bottom of the sliding rod is connected to the material stop block, a spring is provided on the outer circumference of the sliding rod, one end of the spring is supported on the bottom surface of the horizontal plate, and the other end is supported on the material stop block.

[0009] The cylinder fixing seat is a hollow rectangular frame structure, with a flange on the top connected to the cylinder and a flange on the bottom connected to an external mobile casting device; the material unloading moving axis is located in the frame of the cylinder fixing seat.

[0010] The pouring nozzle of the vacuum static pouring equipment of the present application adopts the above structure and has the following advantages:

[0011] 1. The spring structure is used to apply pressure to the stopper block. During the movement, there is no external force at the bottom of the stopper block, so there will be no leakage caused by the pressure change in the inner cavity during the lifting process.

[0012] 2. A vertical discharge pipe and discharge port are set inside the material discharge moving shaft to allow the material to automatically flow down under the action of gravity, avoiding blockage during the discharge process.

[0013] 3. A trigger rod is set at the bottom of the blocking block, which can be opened after contacting the limit block of the external pouring equipment to realize the pouring of the liquid material.

[0014] 4. An end cover is set at the bottom of the material unloading moving shaft to facilitate the maintenance and replacement of the overall material blocking block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the pouring nozzle of the vacuum static pouring equipment.

[0016] Figure 2 for Figure 1 AA section view.

[0017] Figure 3 for Figure 2 A partial enlarged view of . DETAILED DESCRIPTION

[0018] like Figures 1 to 3 As shown, a pouring nozzle of a vacuum static pouring equipment is fixedly connected to a cylinder 2 on a cylinder fixing seat 1, a piston rod at the bottom of the cylinder 2 is connected to a material discharge moving shaft 3, a through hole is provided in the center of the material discharge moving shaft 3, the upper end of the through hole is connected to a radial feed joint 8; a vertical discharge port is provided at the lower end of the through hole, a stop block 5 which elastically moves upward is provided at the discharge port, and the bottom surface of the stop block 5 is in contact with the discharge port; when the stop block 5 is in a sealed state, the center of its bottom surface is lower than the bottom surface of the discharge port, and when the material discharge moving shaft 3 moves down to the limit position, the stop block 5 is in contact with the limit block 6 of the external pouring equipment.

[0019] The stop block 5 has a conical structure at the lower end; the lower end of the movable shaft 3 is sealed and connected to the sealing seat 7, and a conical hole is provided at the bottom of the sealing seat 7 as a discharge port. The conical surface at the lower end of the stop block 5 contacts and seals with the conical hole at the bottom of the sealing seat 7.

[0020] A trigger rod 10 is provided at the bottom center of the blocking block 5 , and the trigger rod 10 extends from the discharge port of the sealing seat 7 .

[0021] A step limit platform is provided at the lower end of the through hole of the unloading movable shaft 3, and a horizontal plate 11 is provided on the step limit platform. A through hole is provided in the center of the horizontal plate, and a slide rod 12 is slidably connected in the through hole. The bottom of the slide rod 12 is connected to the material stop block 5, and a spring 4 is provided on the outer circumference of the slide rod 12. One end of the spring 4 is supported on the bottom surface of the horizontal plate 11, and the other end is supported on the material stop block 5.

[0022] The cylinder fixing seat 1 is a hollow rectangular frame structure, with a flange on the top connected to the cylinder 2 and a flange on the bottom connected to an external mobile casting device; the unloading moving shaft 3 is located in the frame of the cylinder fixing seat 1.

[0023] When the pouring nozzle is not in operation, the cylinder 2 is in a contracted state. At this time, due to the action of the spring 4, the stop block 5 is tightly fitted with the discharge port of the sealing seat 7, and no material flows out of the discharge port.

[0024] When the pouring nozzle of the vacuum static pouring equipment is in working state, the piston rod of the cylinder 2 extends to align the lower end discharge port with the pouring port. At this time, the blocking block 5 contacts the limit block 6, compressing the spring 4, so that the blocking block 5 moves up and a gap is formed between the sealing seat 7. At this time, the material is injected into the pouring port through the gap.

Claims

1. A pouring nozzle of a vacuum static pouring equipment, characterized in that: A cylinder (2) is fixedly connected to a cylinder fixing seat (1), a piston rod at the bottom of the cylinder (2) is connected to a material discharge moving shaft (3), a through hole is provided at the center of the material discharge moving shaft (3), the upper end of the through hole is connected to a radial material feed joint (8); a vertical material discharge port is provided at the lower end of the through hole, a material stopper (5) which elastically moves upward is provided at the material discharge port, and the bottom surface of the material stopper (5) contacts the material discharge port; when the material stopper (5) is in a sealed state, the center of its bottom surface is lower than the bottom surface of the material discharge port, and when the material discharge moving shaft (3) moves downward to the limit position, the material stopper (5) contacts the limit block (6) of the external casting equipment.

2. The pouring nozzle of the vacuum static pouring equipment according to claim 1, characterized in that: The stopper block (5) has a conical structure at the lower end; the lower end of the material discharge moving shaft (3) is sealingly connected to the sealing seat (7); a conical hole is provided at the bottom of the sealing seat (7) as a material discharge port; and the conical surface at the lower end of the stopper block (5) contacts and seals with the conical hole at the bottom of the sealing seat (7).

3. The pouring nozzle of the vacuum static pouring equipment according to claim 2, characterized in that: A trigger rod (10) is provided at the bottom center of the blocking block (5), and the trigger rod (10) extends from the discharge port of the sealing seat (7).

4. The pouring nozzle of the vacuum static pouring equipment according to claim 1, characterized in that: A stepped stop platform is provided at the lower end of the through hole of the material removal moving shaft (3), a horizontal plate (11) is provided on the stepped stop platform, a through hole is provided at the center of the horizontal plate, a slide rod (12) is slidably connected in the through hole, the bottom of the slide rod (12) is connected to the material stop block (5), a spring (4) is provided on the outer circumference of the slide rod (12), one end of the spring (4) is supported on the bottom surface of the horizontal plate (11), and the other end is supported on the material stop block (5).

5. The pouring nozzle of the vacuum static pouring equipment according to claim 1, characterized in that: The cylinder fixing seat (1) is a hollow rectangular frame structure, with a flange at the top connected to the cylinder (2) and a flange at the bottom connected to an external mobile casting device; the material unloading movable shaft (3) is located within the frame of the cylinder fixing seat (1).

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