Airflow circulating system for picking and conveying spherical fruits

Abstract

An airflow circulation system for picking and conveying spherical fruits is characterized in that the airflow circulation system comprises a fruit inlet end, a fruit falling cavity, a fruit falling cabin door, a negative pressure fan and a collecting frame, an inlet in one side of the upper portion of the fruit falling cavity is the fruit inlet end, and the fruit inlet end is used for sucking fruits from a field into an air channel; an air vent in the other side of the upper part of the fruit dropping cavity is connected with an air suction end of a negative pressure fan through an air passage; the air suction end of the negative pressure fan is connected with a pressure release valve; a fruit dropping cabin door is arranged at the lower part of the fruit dropping cavity, and the collecting frame is arranged below the fruit dropping cabin door. The conveying efficiency and quality of fruits are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of conveying, and particularly relates to a pneumatic conveying device structure and a conveying method. BACKGROUND

[0002] At present, the traditional transmission scheme after fruit picking usually relies on the splicing of multiple rigid transmission modules to realize the fruit transmission in the vehicle body. This splicing mode of rigid modules has significant limitations. Each rigid module needs to be independently equipped with an actuator, which greatly increases the number of actuators of the overall system and leads to high equipment cost. Moreover, the splicing mode of rigid modules complicates the structure, and the connection and coordination between modules require additional design and debugging, which increases the difficulty and cost of system maintenance. In addition, the fixed path of rigid modules limits the flexibility of space arrangement, affecting the transmission efficiency and quality of fruits. Therefore, when designing and applying a picking system based on a negative pressure fan, how to effectively improve the defects of the traditional transmission scheme has become a key problem to be solved. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the present application provides an air flow circulation system for spherical fruit picking and conveying, which effectively improves the transmission efficiency and quality of fruits.

[0004] The technical scheme adopted by the present application to solve the above technical problems is:

[0005] An air flow circulation system for spherical fruit picking and conveying, characterized in that it comprises a fruit entering end, a fruit falling cavity, a fruit falling hatch, a negative pressure fan and a collection frame, the upper part of one side of the fruit falling cavity is the fruit entering end, the fruit entering end is used for sucking fruits from the field into an air duct; the air inlet of the upper part of the other side of the fruit falling cavity is connected with the air suction end of the negative pressure fan through the air duct, the air suction end of the negative pressure fan is connected with a pressure relief valve; the lower part of the fruit falling cavity is provided with the fruit falling hatch, and the lower part of the fruit falling hatch is provided with the collection frame.

[0006] Further, the fruit falling hatch is arranged on the fruit falling track at the outlet directly below, one end of the fruit falling track is in communication with the air exhaust end of the negative pressure fan, and the other end of the fruit falling track is located directly above the fruit falling frame. When the negative pressure fan is started, the fruits can be quickly pushed into the collection frame.

[0007] Preferably, the air exhaust end of the negative pressure fan is connected with an air path pipeline, and the air exhaust port of the air path pipeline is connected with one end of the fruit falling track.

[0008] Preferably, the surfaces of the fruit falling cavity and the fruit falling track are made of soft material or wrapped with a soft material buffer protection layer, so as to further optimize the protection effect in the fruit transmission and collection process and reduce any form of physical damage.

[0009] Furthermore, the fruit entry end is connected to the fruit drop cavity through a hose. The design of the hose increases the flexibility and adaptability of the system, so that the picking end and the fruit drop cavity have the ability to adjust the length while ensuring the pipeline connection.

[0010] Furthermore, the suction end of the negative pressure blower is connected to the first end of a three-way valve, the second end of the three-way valve is connected to the air duct, and the third end of the three-way valve is connected to the air duct. A pressure relief valve is provided on the air duct. The negative pressure blower generates negative pressure to draw the fruit into the fruit drop cavity and ensure the movement of the fruit within the cavity. When the fruit enters the fruit drop cavity, the pressure relief valve opens to reduce the negative pressure in the fruit drop cavity, facilitating the fruit's drop.

[0011] The technical concept of the present invention is as follows: the fruit enters the airway through the picking end, and the airway adopts a hose design to connect the end with the fruit drop cavity. This design not only ensures that the fruit can be smoothly and safely delivered from the picking end to the transportation system, but also reduces damage caused by direct contact with hard materials. The use of the hose increases the flexibility and adaptability of the system, so that the picking end and the fruit drop cavity have the ability to adjust the length while ensuring the connection of the pipeline, thereby realizing the position tracking of the target fruit by the picking end. The upper part of the fruit drop cavity is directly connected to the negative pressure airway, and the suction force generated by the negative pressure is used to suck the fruit from a specific target position on the fruit tree, and ensure that it is pushed by the negative pressure in the airway and transported to the fruit drop cavity.

[0012] The fruit drop chamber's door needs to be opened to transfer the fruit to the drop track. The door is subject to significant suction due to the negative pressure within the chamber. To facilitate this, a relay-driven pressure relief valve is configured to control pressure release and restoration, facilitating the opening and closing of the door. When the fruit enters the drop chamber, the pressure relief valve releases the negative pressure, allowing the cylinder to push the door open with minimal force. Once the fruit leaves the chamber, the pressure relief valve closes, restoring the negative pressure and starting the next fruit picking and transport cycle.

[0013] Compared with the prior art, the beneficial effects of the present invention are: effectively improving the transmission efficiency and quality of the fruits. Furthermore, the picking and transmission of the fruits share a fan power source, cleverly utilizing the negative pressure at the air inlet end and the positive pressure at the exhaust end of the fan, respectively realizing the fruit picking and transmission tasks before the fruits enter the fruit falling cavity, and the fruit transmission and collection tasks after leaving the fruit falling cavity. Compared with the transmission form of the traditional conveyor belt, it has the advantages of simplicity and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a structural diagram of an air circulation system for picking and transporting spherical fruits. DETAILED DESCRIPTION

[0015] The application will be further described below with reference to the drawings.

[0016] Referring to Figure 1 A kind of air flow circulation system for spherical fruit picking and conveying, using negative pressure guide type pneumatic transport, including fruit entry end 1, fruit falling cavity 3, fruit falling hatch 4, negative pressure fan 9 and collection frame 8, the upper portion of fruit falling cavity 3 one side import is fruit entry end 1, the fruit entry end 1 is used to suck fruit from field into airway;The upper portion of fruit falling cavity 3 other side vent is connected with the suction end of negative pressure fan 9 by airway 5, the suction end of negative pressure fan 9 is connected with pressure relief valve 13;The lower portion of fruit falling cavity 3 is equipped with fruit falling hatch 44, the lower portion of fruit falling hatch is equipped with the collection frame 8.

[0017] In the embodiment, fruit entry end 1 is located at the most front end of airway structure work, is used to suck fruit from field into airway and plays a guiding role, fruit entry end 1 is connected with fruit falling cavity 3 by hose 2, the design of hose 2 increases the flexibility and adaptability of system, so that picking end and fruit falling cavity have length telescopic adjustment ability under the condition of ensuring pipeline connection, the upper end of fruit falling cavity 3 is connected with the suction end of negative pressure fan 9 by airway 5, so as to generate negative pressure and make fruit be sucked into fruit falling cavity 3 and ensure the movement of fruit in the cavity, when fruit enters fruit falling cavity 3, open pressure relief valve 13 to reduce the negative pressure in fruit falling cavity 3, facilitate fruit falling, open pneumatic valve 14 to open fruit falling hatch 4, so as to make fruit fall on fruit falling track 10;When fruit leaves the cavity, control pressure relief valve 13 to close, to restore the pressure relief in the cavity and open the next fruit picking and conveying cycle.

[0018] The air flow circulation system further includes tee 11 and air duct 12, the first end of tee 11 is connected with the suction port of negative pressure fan 9, the second end and the third end are connected with air duct 12 and airway 5 respectively by steel hoop, air duct 12 is also connected with pressure relief valve 13 in the form of steel hoop.

[0019] The fruit falling track 10 is located directly below the fruit falling hatch, one end of the fruit falling track 10 is connected with the exhaust end of negative pressure fan 9 through airway pipeline 7 and exhaust port 6, the exhaust port 6 makes fruit move quickly in the fruit falling track to the other end by discharging gas, the other end of the fruit falling track 10 is located directly above the fruit collection frame 8, so as to push fruit into the collection frame 8.

[0020] The content described in the embodiments of the present specification is only a list of implementation forms of the inventive concept, and is only for illustrative purposes. The protection scope of the present application should not be regarded as being limited to the specific forms described in the embodiments, and the protection scope of the present application also extends to equivalent technical means that can be thought of by those skilled in the art according to the inventive concept.

Claims

1. An air circulation system for picking and transporting spherical fruits, characterized in that: It includes a fruit entry end, a fruit falling cavity, a fruit falling door, a negative pressure fan and a collection frame. The inlet on one side of the upper part of the fruit falling cavity is the fruit entry end, and the fruit entry end is used to suck fruits from the field into the air duct; the air vent on the other side of the upper part of the fruit falling cavity is connected to the suction end of the negative pressure fan through the air duct, and the suction end of the negative pressure fan is connected to the pressure relief valve; the lower part of the fruit falling cavity is provided with a fruit falling door, and the collection frame is provided below the fruit falling door.

2. The air circulation system for picking and transporting spherical fruits according to claim 1, characterized in that: A fruit-dropping track is provided at the exit just below the fruit-dropping door, one end of the fruit-dropping track is communicated with the exhaust end of the negative pressure fan, and the other end of the fruit-dropping track is located just above the fruit-dropping frame.

3. The air circulation system for picking and transporting spherical fruits according to claim 2, characterized in that: The exhaust end of the negative pressure fan is connected to the air pipeline, and the exhaust port of the air pipeline is connected to one end of the fruit falling track.

4. The air circulation system for picking and transporting spherical fruits according to claim 2, characterized in that: The surfaces of the fruit-dropping cavity and the fruit-dropping track are made of soft material or a buffering protective layer wrapped with soft material.

5. The air circulation system for picking and transporting spherical fruits according to any one of claims 1 to 4, characterized in that: The fruit entry end is connected to the fruit falling cavity through a hose.

6. The air circulation system for picking and transporting spherical fruits according to any one of claims 1 to 4, characterized in that: The suction end of the negative pressure blower is connected to the first end of the three-way valve, the second end of the three-way valve is connected to the air duct, and the third end of the three-way valve is connected to the air duct. A pressure relief valve is provided on the air duct.

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