Top cover type conical sealing valve for particle material container and cover opening mechanism

Abstract

The invention relates to the field of automatic loading and unloading of particle materials, in particular to a top cover type conical sealing valve and an uncovering mechanism for a particle material container, the mechanism comprises a container, a top cover valve, an automatic loading and unloading rack, a top cover device and a cap screwing device, the top cover valve is arranged at the bottom of the container, and the container is used for containing core particles; an automatic feeding and discharging rack is arranged below the top cover valve, a top cover device and a cover screwing device are installed on the automatic feeding and discharging rack, the cover screwing device is used for screwing a top cover of the top cover valve, and the top cover device is used for opening and closing a valve element of the top cover valve. By means of the XY guide rail compensation unit on the cover opening mechanism, opening and closing of a top cover of the top cover valve can be automatically completed when the positioning accuracy error of a container is large; by setting the torsion of the rotating motor, the bottle cap can be screwed without being damaged; by arranging the stroke of the clamping jaw, the device can be suitable for bottle caps of different models and sizes; and the valve is sealed through a rebound mechanism in the top cover valve.

Description

Technical Field

[0001] This invention relates to the field of automatic loading and unloading of granular materials, and in particular to a top-cap type conical sealing valve and opening mechanism for granular material containers. Background Technology

[0002] A top-cap type conical sealing valve (hereinafter referred to as a top-cap valve) is a sealing device for granular materials. Its working process involves a cylinder that automatically opens the valve, allowing the core material to be discharged under its own weight. After discharge, the cylinder retracts, and the valve seals itself via an internal spring. Currently, granular materials are mostly sealed using butterfly valves, slide gate valves, or ball valves. When these valves are automated, the actuators for automatic valve opening and closing are complex and bulky. There is a lack of simple, compact top-cap valve opening and closing mechanisms for sealing granular materials. Summary of the Invention

[0003] This invention provides a top-cap type conical sealing valve and opening mechanism for granular material containers, which solves the problems of complex design and large size of the opening and closing mechanism of sealing valves for granular material containers in the prior art.

[0004] The technical solution of the present invention is as follows:

[0005] This invention proposes a top-cap type conical sealing valve and opening mechanism for a container of granular materials. The mechanism includes a container, a top-cap valve, an automatic loading and unloading frame, a top-cap device, and a capping device. The top-cap valve is provided at the bottom of the container, which is used to contain core particles. An automatic loading and unloading frame is provided below the top-cap valve. The top-cap device and the capping device are installed on the automatic loading and unloading frame. The capping device is used to turn the top cap of the top-cap valve, and the top-cap device is used to open and close the valve core of the top-cap valve.

[0006] In some embodiments, the top cover valve includes a valve core, an elastic sealing ring, a spring, a guide seal, a valve body, and a top cover. The valve core is located inside the valve body, and a guide seal is located outside the valve core. An elastic sealing ring is located between the valve core and the guide seal. The valve core is connected to the top cover by a thread, and a spring is located on the inner wall of the valve body.

[0007] In some embodiments, the top cover device includes a top cover cylinder and a discharge pipe. The top cover cylinder is connected to the discharge pipe. The top cover cylinder opens the top cover valve, and the particles in the container enter the discharge pipe.

[0008] In some embodiments, the capping device includes a lifting cylinder, an XY guide rail compensation unit, and a gripper. The lifting cylinder is connected to the XY guide rail compensation unit, and the gripper is located below the XY guide rail compensation unit. The lifting cylinder is used to control the lifting and lowering of the capping device, and the gripper is used to turn the top cover of the top cover valve.

[0009] In some embodiments, the output end of the lifting cylinder is connected to a cylinder lifting plate, and an XY guide rail compensation unit is installed on the cylinder lifting plate. The XY guide rail compensation unit is used to adjust the centering of the gripper.

[0010] In some embodiments, the capping device is further provided with a servo motor module and a pneumatic slip ring. The servo motor module is mounted on the XY guide rail compensation unit and is connected to the pneumatic slip ring via a coupling. The output shaft of the pneumatic slip ring is connected to the gripper via a pin structure.

[0011] In some embodiments, the pin bore diameter is larger than the thread step size of the top cover valve, and the pin waist hole length must be greater than the thread height.

[0012] In some embodiments, the torque of the servo motor module is adjustable to provide a preset torque when tightening the top cover of the top cover valve.

[0013] The implementation of this invention has the following beneficial effects:

[0014] This invention proposes a top-cap type conical sealing valve and opening mechanism for granular material containers. The invention achieves automatic opening and closing of the top cap valve when the container positioning accuracy error is large by using an XY guide rail compensation unit on the opening mechanism; by setting the torque of the servo motor, it can tighten the cap without damaging it; by setting the stroke of the pneumatic gripper, it can be adapted to caps of different sizes; and the valve is sealed by an internal spring-loaded mechanism. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a top-cap type conical sealing valve and opening mechanism for a granular material container according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of a capping device for a top-cap type conical sealing valve and capping mechanism for a granular material container, as proposed in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of a top cover device for a top cover type conical sealing valve and a top cover opening mechanism for a granular material container, as proposed in an embodiment of the present invention.

[0018] Figure 4 A three-dimensional view of a top-cap type conical sealing valve and a capping device for opening a capping mechanism for a granular material container, as proposed in an embodiment of the present invention.

[0019] Figure 5 This is a three-dimensional view of the top cover device proposed in an embodiment of the present invention;

[0020] Figure 6This is a cross-sectional view of the bottom top cover valve of a container with a top cover type conical sealing valve and a cover opening mechanism for a granular material container, as proposed in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Container; 2. Top cover valve; 3. Top cover device; 4. Capping device; 5. Frame; 6. Lifting cylinder; 7. XY guide rail compensation unit; 8. Servo motor module; 9. Pneumatic slip ring; 10. Gripper; 11. Valve core; 12. Elastic sealing ring; 13. Spring; 14. Guide seal; 15. Valve body; 16. Top cover. Detailed Implementation

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 6 As shown, this invention proposes a top-cap type conical sealing valve and opening mechanism for a granular material container. The mechanism includes a container 1, a top-cap valve 2, an automatic loading / unloading frame 5, a top-cap device 3, and a capping device 4. The container 1 is used to contain core granules. The automatic loading / unloading frame 5 is located below the top-cap valve 2. The top-cap device 3 and the capping device 4 are installed on the automatic loading / unloading frame 5. The capping device 4 is used to turn the top cap of the top-cap valve 2, and the top-cap device 3 is used to open and close the valve core of the top-cap valve 2. The capping device 4 and the top-cap device 3 work together to realize the automatic opening and closing of the top cap of the top-cap valve 2 and the material feeding control.

[0024] The top cover valve 2 includes a valve core 11, an elastic sealing ring 12, a spring 13, a guide seal 14, a valve body 15, and a top cover 16. The valve core 11 is located inside the valve body 15, and the guide seal 14 is located outside the valve core 11. An elastic sealing ring 12 is located between the valve core 11 and the guide seal 14. The valve core 11 is threadedly connected to the top cover 16. A spring 13 is located on the inner wall of the valve body 15. After the top cover 16 is lifted by the top cover device 3, it causes the valve core 11 to rise along the guide seal 14, simultaneously compressing the spring 13, allowing the core particles inside the container 1 to fall. After the top cover device 3 retracts, the internal spring 13 drives the valve core 11 to reset and complete the seal. The bottom of the valve body is designed with a tapered sealing surface, which, in conjunction with the elastic sealing ring 12, achieves the sealing function.

[0025] The top cover device 3 includes a top cover cylinder and a discharge pipe. The top cover cylinder is connected to the discharge pipe. The top cover cylinder opens the top cover valve 2, and the particles in the container 1 enter the discharge pipe.

[0026] The capping device 4 includes a lifting cylinder 6, an XY guide rail compensation unit 7, a servo motor module 8, a pneumatic slip ring 9, and a gripper 10. The output end of the lifting cylinder 6 is connected to a cylinder lifting plate. The XY guide rail compensation unit 7 is mounted on the cylinder lifting plate to compensate for the positioning error of the container 1. The servo motor module 8 is mounted on the XY guide rail compensation unit 7 and is connected to the pneumatic slip ring 9 via a coupling. The output shaft of the pneumatic slip ring 9 is connected to the electric gripper 10 via a pin. The pin bore diameter is larger than the thread step size of the top cover of the top cover valve 2, and the pin waist hole length must be greater than the thread height to accommodate top covers of different specifications of the top cover valve 2. The torque of the servo motor module 8 is adjustable, providing a preset torque when tightening the top cover of the top cover valve 2 to avoid damaging the top cover of the top cover valve 2. A pressure sensor is provided on the gripper 10 to determine whether the gripper 10 is tightened with the top cover.

[0027] like Figures 1 to 5 As shown, this invention proposes a top-cap type conical sealing valve and opening mechanism for a granular material container 1. The specific embodiments of this invention are as follows:

[0028] After container 1 is transported to the capping station via the conveyor line, the material arrival sensor on the conveyor line detects the material signal. At this time, container 1 is directly above the capping device 4, and cylinder 1 starts to rise, causing the gripper 10 to reach the clamping position. After the cylinder reaches the position, the electric gripper 10 clamps the top cover of the top cover valve 2, and the XY guide rail compensation unit 7 aligns the center of the gripper 10 with the center of the top cover of the top cover valve 2. After the gripper 10 clamps, the arrival sensor on the gripper 10 detects the position signal, the servo motor starts, and the servo motor module 83 drives the gripper 10 to reverse and begin capping. During the process of loosening the cap, the top cover of the top cover valve 2 rises due to the thread. At this time, the pin slides on the output shaft waist hole, which counteracts the upward stroke of the top cover of the top cover valve 2 during the loosening process. When the top cover of the top cover valve 2 is completely loosened and detached from container 1, the torque force decreases. When the torque force reaches the set threshold, the system defaults to capping completion. At this time, the lifting cylinder 6 descends, causing the top cover of the top cover valve 2 to detach from the container 1, and the servo motor module 8 stops rotating, completing the cap tightening process.

[0029] Container 1 is transported to the unloading station via a conveyor line for unloading. When the unloading station's position sensor detects material, container 1 is directly above the top cover device 3. The automatic top cover device 3 is activated, and its cylinder rises, opening the top cover valve 2 on container 1 through the unloading pipe. Material falls into the unloading pipe due to gravity through the gap in the top cover valve 2, completing the automatic unloading. When no material is being unloaded, the top cover device 3 cylinder descends, and the internal spring of the top cover valve 2 pushes the valve core 11 back to the sealing position, sealing container 1. When the cylinder's lower limit magnetic opening detects the cylinder's position signal, the system defaults to unloading completion. The conveyor reverses direction to send container 1 to the capping position.

[0030] After the material is unloaded, the conveyor line moves container 1 again. When the material arrival sensor on the conveyor line detects the material signal, container 1 is directly above the capping device 4. Cylinder 1 rises, and the top cover of the top cover valve 2 aligns with container 1. The XY guide rail compensation unit 7 ensures that the top cover of the top cover valve 2 is concentric with container 1. A spring at the connection between the output shaft and the electric gripper 10 applies a preload to the top cover of the top cover valve 2. The servo motor module 8 reverses one revolution, causing the thread of the top cover valve 2 to engage with the thread of the valve body. The servo motor module 8 then begins to rotate forward to tighten the cover. During the tightening process, the thread height slides on the output shaft's waist hole via a pin, and the spring at the connection counteracts the upward stroke of the cover during tightening. When the tightening torque reaches the torque threshold set by the servo module unit, the system assumes that the top cover of the top cover valve 2 is tightened. At this point, the servo motor module 8 stops rotating, and the electric gripper 10 releases the top cover of the top cover valve 2. The lifting cylinder 6 descends, causing the electric gripper 10 to disengage from the top cover of the top cover valve 2, thus completing the cap tightening. When the magnetic sensor on the lifting cylinder 6 detects that the cylinder 1 has reached its highest position, the conveyor line reverses, sending the material out and completing the automatic loading and unloading task.

[0031] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A top-cap type conical sealing valve and opening mechanism for granular material containers, characterized in that, The mechanism includes a container (1), a top cover valve (2), an automatic loading and unloading frame (5), a top cover device (3), and a capping device (4). The container (1) is provided with a top cover valve (2) at the bottom and is used to contain core particles. The automatic loading and unloading frame (5) is provided below the top cover valve (2). The top cover device (3) and the capping device (4) are installed on the automatic loading and unloading frame (5). The capping device (4) is used to turn the top cover of the top cover valve (2), and the top cover device (3) is used to open and close the valve core (11) of the top cover valve (2).

2. The top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 1, characterized in that, The top cover valve (2) includes a valve core (11), an elastic sealing ring (12), a spring (13), a guide seal (14), a valve body (15), and a top cover (16). The valve core (11) is located inside the valve body (15), and the guide seal (14) is located outside the valve core (11). An elastic sealing ring (12) is located between the valve core (11) and the guide seal (14). The valve core (11) is connected to the top cover (16) by a thread. The spring (13) is located on the inner wall of the valve body (15).

3. A top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 2, characterized in that, The top cover device (3) includes a top cover cylinder and a discharge pipe. The top cover cylinder is connected to the discharge pipe. The top cover cylinder opens the top cover valve (2), and the particles in the container (1) enter the discharge pipe.

4. A top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 3, characterized in that, The capping device (4) includes a lifting cylinder (6), an XY guide rail compensation unit (7), and a gripper (10). The lifting cylinder (6) is connected to the XY guide rail compensation unit (7). The gripper (10) is located below the XY guide rail compensation unit (7). The lifting cylinder (6) is used to control the lifting of the capping device (4). The gripper (10) is used to turn the top cover (16) of the top cover valve (2).

5. A top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 4, characterized in that, The output end of the lifting cylinder (6) is connected to the cylinder lifting plate, and the XY guide rail compensation unit (7) is installed on the cylinder lifting plate. The XY guide rail compensation unit (7) is used to adjust the centering of the gripper (10).

6. A top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 5, characterized in that, The capping device (4) is also equipped with a servo motor module (8) and a pneumatic slip ring (9). The servo motor module (8) is installed on the XY guide rail compensation unit (7). The servo motor module (8) is connected to the pneumatic slip ring (9) through a coupling. The output shaft of the pneumatic slip ring (9) is connected to the gripper (10) through a pin structure.

7. A top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 6, characterized in that, The pin hole diameter is larger than the thread step size of the top cover (16) of the top cover valve (2), and the pin waist hole length must be greater than the thread height.

8. A top-cap type conical sealing valve and opening mechanism for a granular material container according to claim 7, characterized in that, The torque of the servo motor module (8) is adjustable, and it is used to provide a preset torque when tightening the top cover (16) of the top cover valve (2).

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