Discharging door for high-capacity sand sweeping cooler

Abstract

The utility model discloses a discharge door for a high-capacity sand sweeping cooler, which comprises a discharge door, a rotating shaft is mounted at the rear end of the discharge door, the discharge door is mounted on a barrel through the rotating shaft, a limit clamping plate is arranged at the front end of the discharge door and is of an L-shaped structure, a cylinder is arranged at the rear end of the limit clamping plate, and a cylinder is arranged at the rear end of the cylinder. The air cylinder is installed at the position, close to the bottom, of the barrel. The discharging door is reasonable in structural design and convenient to use, the discharging door can be electrically controlled to be opened or closed, the use safety is improved, the discharging door plate can be limited through the limiting clamping plate under the condition that the discharging door does not need to be opened, the discharging door leakage phenomenon caused by position deviation or looseness of the discharging door plate is prevented, and the discharging door is safe and reliable. And meanwhile, the maximum opening angle of the discharging door can be limited through the arrangement of the proximity switch, and the using convenience of the discharging door is improved.

Description

Technical Field

[0001] The utility model relates to the field of sand treatment equipment, in particular to a discharge door for a large-capacity sand return cooler. Background Art

[0002] In the process of sand treatment and processing production, it is usually necessary to cool the high-temperature processed molding sand. Therefore, the high-temperature molding sand is often conveyed into a cooler for stirring and cooling. After stirring and cooling, it is discharged through a discharge port. When not discharging, the discharge port of the cooler is usually blocked by a discharge door. The traditional discharge door is usually fixed by a bolt or a rotary lock. When discharging is required, it is necessary for workers to pull out the bolt or open the rotary lock, so that the molding sand is discharged from the discharge port. This form is relatively inconvenient and has potential safety hazards. Moreover, the traditional discharge door is prone to looseness and leakage when blocking the discharge port. Therefore, improvement is still needed. Content of the Utility Model

[0003] The utility model provides a discharge door for a large-capacity sand return cooler to solve the above-mentioned problems. The discharge door includes a discharge door, a rotating shaft is installed at the rear end of the discharge door and is installed on a cylinder body through the rotating shaft. A limit clamping plate is arranged at the front end of the discharge door. The limit clamping plate is arranged in an L-shaped structure. A cylinder is arranged at the rear end of the limit clamping plate. The cylinder is installed at a position close to the bottom of the cylinder body. An outer protective shell is installed outside the discharge door. The outer protective shell is installed on the cylinder body. A lead screw is fixedly arranged on the outer protective shell. A driving motor is arranged on one side of the lead screw and is connected to the driving motor. A rotating node is arranged between the front end of the lead screw and the discharge door and is connected through the rotating node. A telescopic joint is sleeved on the lead screw.

[0004] Preferably, a buffer spring is sleeved at a position close to the front end of the lead screw.

[0005] Preferably, a proximity switch is arranged on the inner wall surface of the outer protective shell.

[0006] The beneficial effects of the utility model are as follows: The structure of the utility model is reasonably designed and convenient to use. It can electrically control the opening or closing of the discharge door, improve the use safety. The setting of the limit clamping plate can limit the discharge door panel when the discharge door does not need to be opened, prevent the discharge door panel from generating position deviation or looseness and causing the discharge door to leak. At the same time, the setting of the proximity switch can also limit the maximum opening angle of the discharge door, improving the use convenience of the discharge door. Description of the Drawings

[0007] The utility model will be described by way of examples with reference to the accompanying drawings, where:

[0008] Figure 1It is a schematic structural diagram of the discharge door of the present utility model;

[0009] Figure 2 In the present utility model Figure 1 is a schematic diagram of a partial structure;

[0010] In the figure: 1, cylinder body; 2, outer protective shell; 3, lead screw; 4, driving motor; 5, expansion joint; 6, proximity switch; 7, rotation node; 8, rotating shaft; 9, cylinder; 10, limit clamping plate; 11, discharge door plate; 12, buffer spring. Specific embodiments

[0011] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0012] Any feature in this specification, unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example in a series of equivalent or similar features.

[0013] Such as Figure 1 , 2 As shown, a discharge door for a large-capacity sand return cooler includes a discharge door 11. The rear end of the discharge door 11 is installed with a rotating shaft 8 and is installed on the cylinder body 1 through the rotating shaft 8. A limit clamping plate 10 is provided at the front end of the discharge door 11. The limit clamping plate 10 is arranged in an L-shaped structure. A cylinder 9 is provided at the rear end of the limit clamping plate 10. The cylinder 9 is installed at a position near the bottom of the cylinder body 1. An outer protective shell 2 is installed outside the discharge door 11. The outer protective shell 2 is installed on the cylinder body 1. A lead screw 3 is fixedly provided on the outer protective shell 2. A driving motor 4 is provided on one side of the lead screw 3 and is connected to the driving motor 4. A rotation node 7 is provided between the front end of the lead screw 3 and the discharge door 11 and is connected through the rotation node 7. An expansion joint 5 is sleeved on the lead screw 3.

[0014] A buffer spring 12 is sleeved on the lead screw 3 near the front end position.

[0015] A proximity switch 6 is provided on the inner wall surface of the outer protective shell 2.

[0016] During use, the driving motor 4 drives the lead screw 3 to rotate. During the rotation of the lead screw 3, it will retract backward, further pulling the discharge door 11 to flip upward with the rotating shaft 8 as the rotation point. When the rotating node 7 flips to a position close to the proximity switch 6, the proximity switch 6 senses the rotating node 7 and controls the driving motor 4 to stop operating, thereby stopping the discharge door 11 from continuing to flip upward. Before this, the air cylinder 9 will pull the limit card 10 backward, making the limit card 10 away from the discharge door 11, so as to facilitate the normal opening of the discharge door 11.

[0017] Conversely, when the discharge door 11 covers the discharge opening, the air cylinder 9 pushes the limit card 10 forward, making the limit card 10 approach the discharge door 11 and abut against the front end of the discharge door 11, thereby limiting the discharge door 11 and preventing the discharge door 11 from loosening and causing material leakage.

[0018] The limit card 10 is arranged in an L-shaped structure and can press on the discharge door 11 after abutting against the front end of the discharge door 11, so as to facilitate the limit of the upward flip of the discharge door 11.

[0019] The beneficial effects of the present utility model are as follows: The structure of the present utility model is reasonably designed and convenient to use. It can electrically control the opening or closing of the discharge door, improving the use safety. And the setting of the limit card can limit the discharge door panel without the need to open the discharge door, preventing the discharge door panel from shifting or loosening and causing material leakage of the discharge door. At the same time, the setting of the proximity switch can also limit the maximum opening angle of the discharge door, improving the use convenience of the discharge door.

[0020] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. A discharge door for a large-capacity sand return cooler, comprising a discharge door (11), characterized in that: The rear end of the discharge door (11) is provided with a rotating shaft (8) and is installed on the cylinder (1) through the rotating shaft (8); the front end of the discharge door (11) is provided with a limit clamping plate (10), the limit clamping plate (10) is arranged in an L-shaped structure, the rear end of the limit clamping plate (10) is provided with a cylinder (9), the cylinder (9) is installed near the bottom of the cylinder (1); the outside of the discharge door (11) is provided with an outer protective shell (2), the outer protective shell (2) is installed on the cylinder (1), a screw rod (3) is fixedly arranged on the outer protective shell (2), a drive motor (4) is arranged on one side of the screw rod (3) and is connected to the drive motor (4); a rotation node (7) is arranged between the front end of the screw rod (3) and the discharge door (11), and they are connected through the rotation node (7); a telescopic joint (5) is sleeved on the screw rod (3).

2. A discharge door for a large-capacity sand return cooler according to claim 1, characterized in that: A buffer spring (12) is sleeved on the lead screw (3) near the front end.

3. A discharge door for a large-capacity sand return cooler according to claim 1, characterized in that: A proximity switch (6) is provided on the inner wall surface of the outer protective shell (2).

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