Pneumatic sorting device and sorting method thereof

Abstract

The invention provides a pneumatic sorting device and a sorting method thereof, and belongs to the field of object sorting. Comprising a shell; the angle adjusting assembly is rotatably arranged in the shell; the valve plate is arranged at the upper end of the angle adjusting assembly. The angle adjusting assembly is used for adjusting the angle of the valve plate. And the multiple nozzles are all arranged on the valve plate. The pneumatic sorting device aims to solve the problem of poor pneumatic sorting effect in the prior art. The technical effect that efficient and accurate sorting of the objects is achieved is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of article sorting, in particular to a pneumatic sorting device, and also to a sorting method of the pneumatic sorting device. Background Art

[0002] Pneumatic sorting technology, which uses high-speed gas injection to achieve material separation, precise screening, and classification, has been widely used in various fields. In the field of agricultural product sorting, it can efficiently separate agricultural products of different qualities and specifications; in industrial product inspection and rejection, it can quickly screen out substandard products; and it also plays a vital role in waste sorting, resource recovery, and mineral sorting, greatly improving the efficiency and quality of material processing. However, existing pneumatic sorting devices often use a static design, requiring manual adjustment of the nozzle angle based on the type of object being sorted and its initial velocity. This manual adjustment is not only cumbersome but also difficult to precisely control, making it difficult to effectively control the object sorting trajectory. Debugging often consumes considerable time and effort, significantly impacting sorting efficiency. Furthermore, existing sorting methods fail to fully consider the trajectory of the objects being sorted, leading to a series of problems. When the objects fly too far, pre-sorted objects are difficult to detect, reducing sorting accuracy. When the distance they fly is too great, the pre-sorted objects impact the walls of the sorting isolation chamber at high speed, potentially damaging the equipment and resulting in poor sorting results. This makes it impossible to meet the growing demand for efficient and accurate sorting. Summary of the Invention

[0003] The present invention provides a pneumatic sorting device and a sorting method thereof, which are used to solve the defect of poor pneumatic sorting effect in the prior art and realize efficient and accurate sorting of items.

[0004] A first aspect of the present invention provides a pneumatic sorting device, comprising: case; The angle adjustment component is rotatably arranged in the housing; The valve plate is arranged at the upper end of the angle adjustment assembly, and the angle adjustment assembly is used to adjust the angle of the valve plate; Multiple nozzles are arranged on the valve plate.

[0005] In addition, the pneumatic sorting device according to the present invention may also have the following additional technical features: In some embodiments of the present invention, the valve plate comprises: The fixed base plate is connected to the upper end of the angle adjustment assembly, and the nozzle seats of the multiple nozzles are all connected to the fixed base plate; The connecting cover plate and the fixed bottom plate are connected to each other, and the nozzle heads of the plurality of nozzles are inserted into the connecting cover plate.

[0006] In some embodiments of the present invention, the valve plate further comprises: The baffle is connected to the fixed bottom plate, and the connecting cover is located between the baffle and the fixed bottom plate.

[0007] In some embodiments of the present invention, a plurality of transition holes are formed on the connecting cover plate, and the nozzle heads of the plurality of nozzles are inserted into the plurality of transition holes in a one-to-one correspondence.

[0008] In some embodiments of the present invention, each transition hole comprises: The nozzle head of each nozzle of the tapered hole is inserted into a tapered hole; The straight hole, the tapered hole and the straight hole are connected to each other.

[0009] In some embodiments of the present invention, the angle adjustment assembly includes: There are two crank-connecting rod groups, which are rotatably connected to the two opposite inner side walls of the housing in a one-to-one correspondence. The upper ends of the two crank-connecting rod groups are connected to the valve plate. Both ends of the connecting rod are connected to a crank-connecting rod set respectively; The motor is installed on one side of the housing, and the output shaft of the motor is connected to one of the crank-connecting rod sets.

[0010] In some embodiments of the present invention, each crankshaft connecting rod assembly comprises: The rotating shaft is rotatably connected to the side wall of the housing, and the output shaft of the motor is connected to the rotating shaft; One end of the crank is connected to the rotating shaft; One end of the first connecting rod is rotatably connected to the other end of the crank; One end of the rocker is rotatably connected to the other end of the first connecting rod; A connecting part is provided at the other end of the rocker, and the connecting part is connected to the fixed base plate.

[0011] A second aspect of the present invention provides a sorting method for a pneumatic sorting device, comprising all the technical features of the pneumatic sorting device of the first aspect of the present invention, and in addition, further comprising: Identify the initial velocity V of the object, the mass distribution of the object, the size of the object, and the spatial relationship between the object and the nozzle's air hole, set a predetermined trajectory Γ, and continue to transport the object; Set the valve plate angle according to the predetermined trajectory Γ , according to the valve plate angle Set the motor rotation angle; The items are transported to the corresponding position of the nozzle for air jet sorting, and the item sorting is completed.

[0012] In some embodiments of the present invention, the valve plate angle is set according to the predetermined trajectory Γ. include: According to the predetermined trajectory Γ, the impact force generated by a single nozzle on the object is: ; The impact force generated by a single nozzle on the object is Get the pressure on the object Angle with valve plate .

[0013] In some embodiments of the present invention, the impact force generated by a single nozzle on an object is obtained according to the predetermined trajectory Γ: include: Determine the predetermined trajectory Γ based on the positional relationship between the coordinate vector of the object's centroid and the sorting bin to be entered; The impact force of a single nozzle on the object is calculated based on the predetermined trajectory Γ .

[0014] In summary, the present application includes the following beneficial technical effects: First, the sorting device realizes that the angle of the valve plate can be adjusted according to demand through the setting of the angle adjustment component, and thus the angle of the air outlet of multiple nozzles can be adjusted according to the trajectory of the position to be sorted, and thus when the items are sorted, the items can be sorted according to the set motion trajectory, and the effective dynamic adjustment of the sorting trajectory of the items is realized, thereby realizing the precise sorting of the items, increasing the sorting efficiency, and reducing the consumption of time and energy.

[0015] Second, the sorting method can formulate precise sorting strategies based on the characteristics of different items by identifying the initial speed, mass distribution, size and spatial position relationship of the items and the nozzle holes; set a predetermined trajectory The system continuously conveys the items, providing a benchmark for subsequent precise control. The valve plate angle and motor rotation angle are set according to the predetermined trajectory, enabling precise control of the jet direction and force, ensuring that items move along the intended trajectory and improving sorting accuracy and stability. Jet sorting is initiated when the items reach the nozzle's corresponding position. This seamless process reduces sorting errors caused by differences in item characteristics and environmental factors, significantly improving sorting efficiency and quality. It is suitable for sorting a wide range of items and offers significant advantages over traditional sorting methods in terms of automation and precision, enabling efficient and accurate sorting of items. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings: Figure 1A perspective view of a pneumatic sorting device according to some embodiments of the present invention is schematically shown.

[0017] Figure 2 Schematically showing a cross-sectional view of a pneumatic sorting device according to some embodiments of the present invention.

[0018] Figure 3 Schematically shows an exploded view of a valve plate combined with a nozzle of a pneumatic sorting device according to some embodiments of the present invention.

[0019] Figure 4 A perspective view schematically illustrates an angle adjustment assembly of a pneumatic sorting device according to some embodiments of the present invention installed on a housing.

[0020] Figure 5 A perspective view of a crank-connecting rod assembly of a pneumatic sorting device according to some embodiments of the present invention is schematically shown.

[0021] Figure 6 A perspective view schematically illustrates the connection between a fixed base plate and a nozzle of a pneumatic sorting device according to some embodiments of the present invention.

[0022] Figure 7 A partially enlarged perspective view schematically illustrates a connection between a fixed base plate and a nozzle of a pneumatic sorting device according to some embodiments of the present invention.

[0023] Figure 8 A three-dimensional diagram schematically illustrates the connection between a connecting cover plate and a nozzle of a pneumatic sorting device according to some embodiments of the present invention.

[0024] Figure 9 A partially enlarged perspective view schematically illustrates a connection between a connecting cover plate and a nozzle of a pneumatic sorting device according to some embodiments of the present invention.

[0025] Figure 10 A perspective view schematically illustrates a connection cover plate of a pneumatic sorting device according to some embodiments of the present invention.

[0026] Figure 11 Schematically showing a cross-sectional view of a connecting cover plate of a pneumatic sorting device according to some embodiments of the present invention.

[0027] Figure 12 A perspective view schematically shows a tooling state of a pneumatic sorting device according to some embodiments of the present invention.

[0028] Figure 13 A side view schematically illustrates a tooling state of a pneumatic sorting device according to some embodiments of the present invention.

[0029] Figure 14A first schematic diagram schematically illustrates a simplified working diagram of a crank-connecting rod assembly of a pneumatic sorting device according to some embodiments of the present invention.

[0030] Figure 15 A second schematic diagram schematically illustrates a simplified working diagram of a crank-connecting rod assembly of a pneumatic sorting device according to some embodiments of the present invention.

[0031] Figure 16 The flowchart of the sorting method of the pneumatic sorting device according to some embodiments of the present invention is schematically shown.

[0032] Reference numerals: 1. Shell, 11. First slide, 12. Second slide, 2. Nozzle, 3. Angle adjustment assembly, 31. Crank-connecting rod group, 311. Rotating shaft, 312. Crank, 313. First connecting rod, 314. Rocker, 315. Connecting part, 316. First connecting shaft, 317. Second connecting shaft, 32. Connecting rod, 4. Valve plate, 41. Fixed bottom plate, 411. Bottom plate body, 412. Connecting flange, 413. Long strip hole, 414. Fixed hole, 43. Connecting cover plate, 431. Cover plate body, 432. Positioning rod, 433. Connecting block, 434. Transition hole, 4341. Tapered hole, 4342. Straight hole, 44. Baffle, 5. Motor, 6. Conveying device, 7. Material bin, 8. Valve island. DETAILED DESCRIPTION

[0033] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0035] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0036] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" may include both above and below orientations. The device may be otherwise oriented rotated 90 degrees or in other orientations and the spatially relative descriptors used herein are interpreted accordingly.

[0037] like Figures 1 to 15 As shown, according to an embodiment of the first aspect of the present invention, a pneumatic sorting device is proposed, including a shell 1, an angle adjustment component 3, a valve plate 4 and a plurality of nozzles 2. The angle adjustment component 3 is rotatably arranged in the shell 1, and a valve plate 4 is provided at the upper end of the angle adjustment component 3. A plurality of nozzles 2 are provided on the valve plate 4. The angle adjustment component 3 is used to adjust the angle of the valve plate 4.

[0038] In the above embodiment, it should be noted that the angle adjustment component 3 can use a motor 5 on the shell 1, and the output shaft of the motor 5 passes through the shell 1 and is connected to the valve plate 4, and the valve plate 4 is driven to rotate by the output shaft of the motor 5; it also includes an air pump, and multiple nozzles 2 are connected to the air pump through an air pipe; the multiple nozzles 2 on the valve plate 4 are arranged in an "I" shape or in the form of a rectangular array.

[0039] The technical effect achieved by the above embodiment is: through the setting of the angle adjustment component 3, the angle of the valve plate 4 can be adjusted according to needs, and then the angle of the air outlet of multiple nozzles 2 can be adjusted according to the trajectory of the position to be sorted, and then when the items are sorted, the items can be sorted according to the set motion trajectory, and the effective dynamic adjustment of the sorting trajectory of the items is realized, thereby realizing the accurate sorting of the items, increasing the sorting efficiency, and reducing the consumption of time and energy.

[0040] Optional, such as Figures 1 to 3 and Figures 6 to 11 As shown, the valve plate 4 includes a connecting cover plate 43 and a fixed bottom plate 41. The fixed bottom plate 41 is connected to the upper end of the angle adjustment assembly 3. The connecting cover plate 43 and the fixed bottom plate 41 are connected to each other. The nozzle 2 seats of multiple nozzles 2 are all connected to the fixed bottom plate 41, and the nozzle 2 heads of multiple nozzles 2 are all inserted on the connecting cover plate 43.

[0041] In the above optional embodiments, it should be noted that the connecting cover plate 43 includes a cover plate body 431, a positioning rod 432 and a connecting block 433. The surface of the cover plate body 431 is connected to multiple positioning rods 432 by welding, screwing or bonding, and the surface of at least one of the four corners of the surface of the cover plate body 431 is connected to at least one connecting block 433 by welding, screwing or bonding.

[0042] The fixed base plate 41 includes a base plate body 411 and a connecting flange 412. Both sides of the base plate body 411 are connected to a connecting flange 412 by bending, welding or bonding. A plurality of elongated holes 413 and a plurality of fixing holes 414 are provided on the base plate body 411. A plurality of bolts pass through the plurality of elongated holes 413 and are connected to the plurality of positioning rods 432 in a one-to-one manner. The elongated holes 413 are in the shape of elongated strips. Optionally, a plurality of bolts can also pass through the fixing holes 414 and are connected to the plurality of positioning rods 432 in a one-to-one manner according to actual needs, and then one to three bolts pass through the fixing holes 414 and / or the elongated holes 413 and are connected to the connecting block 433.

[0043] The nozzle heads of the plurality of nozzles 2 are all inserted into the cover plate 431 , and the nozzle seats of the plurality of nozzles 2 are all in contact with the bottom plate 411 .

[0044] The angle adjustment assembly 3 can be installed on the housing 1 using a motor 5. The output shaft of the motor 5 passes through the housing 1 and is connected to the side wall of the baffle 44 of the valve plate 4. The rotation of the output shaft of the motor 5 drives the side wall of the baffle 44 to rotate.

[0045] The beneficial effects of the above optional embodiments are as follows: By cooperatively arranging the connecting cover plate 43 and the fixed bottom plate 41, multiple nozzles 2 are reliably connected between the connecting cover plate 43 and the fixed bottom plate 41, enabling the nozzles 2 to be quickly and conveniently connected and fixed, increasing the connection convenience of the multiple nozzles 2 while ensuring the reliability and stability of the connection of the nozzles 2.

[0046] In addition, the fixed bottom plate 41 of the valve plate 4 is connected to the upper end of the angle adjustment component 3, providing a stable installation foundation for the valve plate 4, enabling it to reliably adjust the angle through the angle adjustment component 3; the connecting cover plate 43 and the fixed bottom plate 41 are interconnected, and the two cooperate to form a stable frame structure, ensuring the installation stability of the nozzles 2. At the same time, the setting of the baffle 44 restricts the connecting cover plate 43 between the baffle 44 and the fixed bottom plate 41, further enhancing the structural strength of the entire valve plate 4, preventing the nozzles 2 from shifting or loosening during use, and improving the durability and reliability of the valve plate 4.

[0047] Finally, the setting of multiple long strip holes 413 enables the quick and convenient connection between the connecting cover plate 43 and the fixed bottom plate 41 while ensuring the reliable, stable and firm installation of the nozzles 2, guaranteeing the convenience of installation.

[0048] Optionally, as Figures 1 to 3 and Figures 6 to 11 shown, the valve plate 4 further includes a baffle 44, the baffle 44 is connected to the fixed bottom plate 41, and the connecting cover plate 43 is located between the baffle 44 and the fixed bottom plate 41.

[0049] In the above optional embodiments, it should be noted that both connecting flanges 412 of the fixed bottom plate 41 are connected to the baffle 44 by means of bolt connection, snap connection, riveting or the like; the shape of the baffle 44 is "C" - shaped.

[0050] The beneficial effects of the above optional embodiments are as follows: Through the setting of the baffle 44, the reliable connection of the fixed bottom plate 41 is achieved and the sealing performance of the device is guaranteed. Through the setting of the connecting flanges 412, the connection convenience and reliability between the fixed bottom plate 41 and the baffle 44 are increased.

[0051] Optionally, as Figure 10 and Figure 11 shown, multiple transition holes 434 are formed on the connecting cover plate 43, and the nozzle heads of the multiple nozzles 2 are respectively inserted into the multiple transition holes 434.

[0052] In the above optional embodiments, it should be noted that the shape of the transition holes 434 is frustum - shaped.

[0053] Optionally, as Figure 2 and Figure 3As shown, each transition hole 434 includes a tapered hole 4341 and a straight hole 4342 , the tapered hole 4341 and the straight hole 4342 are connected to each other, and the nozzle head of each nozzle 2 is inserted into one tapered hole 4341 .

[0054] In the above optional embodiment, it should be noted that the shape of the tapered hole 4341 is a truncated cone, and the minimum diameter of the tapered hole 4341 is equal to the diameter of the straight hole 4342 .

[0055] The beneficial effects of the above optional embodiments are: the setting of the tapered hole 4341 conforms to the tapered setting of the nozzle 2 head of the nozzle 2, so that the nozzle 2 head of the nozzle 2 can be inserted into the tapered hole 4341, and the setting of the straight hole 4342 is combined with the front end of the nozzle 2 to be firmly located on the upper surface of the connecting cover 43, so that the airflow can be smoothly ejected from the nozzle 2 to the sorted items.

[0056] Optional, such as Figure 10 and Figure 11 As shown, the angle adjustment assembly 3 includes a crank-connecting rod group 31, a connecting rod 32 and a motor 5. A crank-connecting rod group 31 is connected to each end of the connecting rod 32. The two crank-connecting rod groups 31 are rotatably connected to the two opposite inner side walls of the shell 1 in a one-to-one correspondence. The motor 5 is installed on one side of the shell 1, and the output shaft of the motor 5 is connected to one of the crank-connecting rod groups 31; the upper ends of the two crank-connecting rod groups 31 are connected to the valve plate 4.

[0057] In the above optional embodiment, it should be noted that two connecting rods 32 are connected between the two crank-connecting rod sets 31 .

[0058] The beneficial effects of the above-mentioned optional embodiment are as follows: the motor 5 drives the output shaft to rotate, driving the crank-connecting rod group 31 connected thereto to operate, and transmits power to the crank-connecting rod group 31 on the other side through the connecting rod 32, thereby achieving two sets of synchronous movements. Based on the principle of the crank 312 connecting rod mechanism, the circular motion of the output shaft of the motor 5 can be converted into reciprocating swing or angle change, thereby driving the valve plate 4 to drive the nozzle 2 to achieve angle adjustment. Not only is the transmission stable and reliable, effectively reducing shaking and errors during movement, but the double-sided linkage method also makes the angle adjustment more balanced and precise, making it suitable for scenarios with high requirements for angle control accuracy. At the same time, the modular crank-connecting rod group 31 and connecting rod 32 are easy to install and maintain, improving the practicality and durability of the overall system.

[0059] Optional, such as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figures 12 to 15As shown, each crank-connecting rod group 31 includes a rotating shaft 311, a crank 312, a first connecting rod 313, a rocker 314 and a connecting portion 315. The rotating shaft 311 is rotatably connected to the side wall of the shell 1, one end of the crank 312 is connected to the rotating shaft 311, one end of the first connecting rod 313 is rotatably connected to the other end of the crank 312, one end of the rocker 314 is rotatably connected to the other end of the first connecting rod 313, and the other end of the rocker 314 is provided with a connecting portion 315, which is connected to the fixed base plate 41; the output shaft of the motor 5 is connected to the rotating shaft 311.

[0060] In the above optional embodiment, it should be noted that a first slide groove 11 and a second slide groove 12 are provided on both sides of the shell 1, and the shapes of the first slide groove 11 and the second slide groove 12 are both arc-shaped. The rotating shaft 311 of one crank-connecting rod group 31 passes through one side wall of the shell 1 and is connected to the output shaft of the motor 5 through a coupling, and the rotating shaft 311 of the other crank-connecting rod group 31 is rotatably connected to the other side wall of the shell 1. The crank 312 and the first connecting rod 313 are rotatably connected through the shaft matching bearing, and the first connecting rod 313 and the rocker 314 are rotatably connected through the first connecting shaft 316. The rocker arm 314 is dynamically connected, and one side wall of the rocker arm 314 is also connected to a second connecting shaft 317 by screwing or bonding. The end of the rocker arm 314 away from the first connecting rod 313 is connected to the bottom plate body 411 of the fixed bottom plate 41 of the valve plate 4 by bolt connection or clamping. The first connecting shaft 316 can be slidably inserted in the first slide groove 11, and the second connecting shaft 317 can be slidably inserted in the second slide groove 12; the two ends of one connecting rod 32 are respectively connected to a first connecting shaft 316, and the two ends of the other connecting rod 32 are respectively connected to a second connecting shaft 317.

[0061] It also includes a valve island 8, which is connected to the housing 1 by bolt connection or clamping, and multiple nozzles 2 are connected to the valve island 8 through air pipes, and the valve island 8 is connected to the air pump through the air pipe.

[0062] In addition, it also includes a conveying device 6 and a material bin 7. The conveying device 6 is used to convey items. The conveying device 6 and the material bin 7 are respectively located on two opposite sides of the pneumatic sorting device.

[0063] The motion diagram of the crank connecting rod group 31 is as follows Figure 14 and Figure 15As shown, the specific motion principle is as follows: the crank 312 is the AB rod in the figure, with a length of L1, and can make a full rotation. Point A is usually the driving end. Under the drive of the motor 5, the crank 312AB makes a circular motion around point A. The first connecting rod 313 is the BC rod, with a length of L2, connecting the crank 312 and the rocker 314, and making a planar motion driven by the crank 312. The rocker 314 is a CD rod, with a length of L3, and makes a reciprocating swinging motion; thereby, the rotation of the output shaft of the motor 5 drives the rotation of the crank 312, which drives the first connecting rod 313 to make a planar motion, drives the rocker 314 to make a reciprocating swing, drives the valve plate 4 to rotate, and realizes the adjustment of the angle of the nozzle 2.

[0064] The beneficial effects of the above optional embodiments are: the rotating shaft 311 is rotatably connected to the side wall of the shell 1, providing a reliable support and rotation basis for the crank-connecting rod group 31, thereby ensuring the stability of operation; the output shaft of the motor 5 is connected to the rotating shaft 311, and the rotational power of the motor 5 is efficiently transmitted to the crank 312, and the crank 312 drives the first connecting rod 313 to move with the rocker 314, forming a stable motion chain, realizing the precise conversion from rotational motion to linear or swinging motion, and thus realizing that the angle of the nozzle 2 can be adjusted according to needs.

[0065] The connecting portion 315 at the end of the rocker 314 is connected to the fixed base plate 41, which can transmit motion to the valve plate 4, so that the valve plate 4 moves along a predetermined trajectory, which not only simplifies the transmission process and reduces energy loss, but also improves transmission efficiency and accuracy.

[0066] like Figure 16 As shown, according to an embodiment of the second aspect of the present invention, a sorting method of a pneumatic sorting device is proposed, comprising: Identify the initial velocity V of the object, the mass distribution of the object, the size of the object, and the spatial positional relationship between the object and the air hole of the nozzle 2, set a predetermined trajectory Γ, and continue to transport the object; Set the valve plate 4 angle according to the predetermined trajectory Γ , according to the valve plate 4 angles Set the rotation angle of motor 5; The items are transported to the position corresponding to nozzle 2 for air jet sorting, and the item sorting is completed.

[0067] In the above optional embodiments, it should be noted that the method for identifying the initial conveying speed V of the object, the mass distribution of the object, the size of the object, and the spatial position relationship between the object and the air hole of the nozzle 2 includes setting a speed sensor on the conveying device 6 to identify the initial conveying speed V of the object, and the mass distribution of the object, the size of the object, and the spatial position relationship between the object and the air hole of the nozzle 2 are all identified using the visual detection equipment of the prior art, and no further details are given.

[0068] The beneficial effects of the above optional embodiment are: the sorting method can formulate accurate sorting strategies for different item characteristics by identifying the initial speed, mass distribution, size and spatial position relationship of the item conveying with the nozzle 2; set a predetermined trajectory The system continuously conveys the items, providing a benchmark for subsequent precise control. The angle of valve plate 4 and the rotation angle of motor 5 are set according to the predetermined trajectory, enabling precise control of the jet direction and force, allowing items to move along the intended trajectory and improving sorting accuracy and stability. Jet sorting is performed when the items reach the corresponding position of nozzle 2. This seamless process reduces sorting errors caused by differences in item characteristics and environmental factors, significantly improving sorting efficiency and quality. It is suitable for sorting a wide range of items and offers significant advantages over traditional sorting methods in terms of automation and precision, enabling efficient and accurate sorting of items.

[0069] Optional, such as Figure 16 As shown, the valve plate 4 angle is set according to the predetermined trajectory Γ include: According to the predetermined trajectory Γ, the impact force generated by a single nozzle 2 on the object is: , according to the impact force generated by a single nozzle 2 on the object Get the pressure on the object Angle with valve plate 4 .

[0070] In the above optional embodiment, it should be noted that the specific calculation formula is as follows: ; Where, Indicates that the item has arrived at the corresponding The impact force of the high-speed airflow generated by the nozzle 2 on the bottle , Represents the pressure on the object. represents the rotation angle of the valve plate 4, and n represents the unit vector representing the surface source of the object.

[0071] The beneficial effects of the above optional embodiment are: through the predetermined trajectory Precisely set the 4 angles of the valve plate to achieve precise control of impact force and pressure. The impact force of a single nozzle 2 on an object can be accurately calculated, and then, combined with the characteristics of the object, the relationship between the pressure on the object and the angle of the valve plate 4 can be accurately obtained, thereby achieving precise adjustment of the angle of the valve plate 4.

[0072] Optional, such as Figure 16 As shown, according to the predetermined trajectory Γ, the impact force generated by a single nozzle 2 on the object is Including, determining the predetermined trajectory Γ according to the positional relationship between the coordinate vector of the centroid of the object and the sorting bin to be entered, and calculating the impact force of the single nozzle 2 on the object according to the predetermined trajectory Γ .

[0073] In the above optional embodiment, it should be noted that the specific calculation formula is as follows: The calculation formula for determining the predetermined trajectory Γ based on the positional relationship between the coordinate vector of the object's centroid and the sorting bin to be entered is: ; Where, Coordinate vector of the centroid of the object , Represents the position vector of any fixed point on the object relative to the object's centroid , represents the angular velocity of the object, The position vector representing the object's centroid to any fixed point on the object relative to the object's centroid.

[0074] The formula for calculating the angular velocity of an object is: ; Where, Represents the angular velocity of the object; The position vector representing the object's centroid to any fixed point on the object relative to the object's centroid; Represents the initial speed of item transport.

[0075] The impact force of a single nozzle 2 on the object is calculated based on the predetermined trajectory Γ The calculation formula is: ; ; in, The impact force of the high-speed airflow generated by the kth nozzle 2 on the bottle body is , Represents the moment of inertia of the object; Represents the position vector between the nozzle 2 action point and the object's centroid.

[0076] In addition, the control method of the pneumatic sorting device includes the following steps: the conveying device 6 feeds back the initial speed V of the object conveying to the controller; the visual inspection device feeds back the mass distribution of the identified object, the size of the object, and the spatial position of the object and the air hole of the nozzle 2 to the controller; the controller calculates the expected motion trajectory of the object sorting based on the initial speed V, mass distribution, and size of the identified object. , then calculate the rotation angle of valve plate 4 , according to the rotation angle of the valve plate 4 The motion formula of the crank-connecting rod group 31 is designed to calculate the number of revolutions of the output shaft of the motor 5, and the motor 5 is controlled to rotate to adjust the nozzle 2 to a specified angle. Then, the controller obtains the timing when the item reaches the position facing the air outlet of the nozzle 2 based on the spatial position relationship between the item and the air hole of the nozzle 2. When the item reaches the position facing the air outlet of the nozzle 2, the controller controls the air pump to perform jet sorting and sort the item into the corresponding bin 7. The sorting is completed.

[0077] The beneficial effects of the above optional embodiment are: determining the predetermined trajectory Γ according to the positional relationship between the coordinate vector of the centroid of the object and the sorting bin to be entered, and calculating the impact force of the single nozzle 2 on the object according to the predetermined trajectory Γ The setting realizes the impact force of nozzle 2 Accurate calculation ensures the accuracy of item sorting.

[0078] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A pneumatic sorting device, characterized in that: include: housing (1); An angle adjustment component (3) rotatably disposed in the housing (1); A valve plate (4) is arranged at the upper end of the angle adjustment component (3), and the angle adjustment component (3) is used to adjust the angle of the valve plate (4); A plurality of nozzles (2), wherein the plurality of nozzles (2) are all arranged on the valve plate (4).

2. The pneumatic sorting device according to claim 1, characterized in that: The valve plate (4) comprises: A fixed base plate (41) is connected to the upper end of the angle adjustment assembly (3), and the nozzle (2) seats of the plurality of nozzles (2) are all connected to the fixed base plate (41); The connecting cover plate (43) is connected to the fixed base plate (41), and the nozzle (2) heads of the plurality of nozzles (2) are inserted into the connecting cover plate (43).

3. The pneumatic sorting device according to claim 2, characterized in that: The valve plate (4) further comprises: The baffle (44) is connected to the fixed base plate (41), and the connecting cover plate (43) is located between the baffle (44) and the fixed base plate (41).

4. The pneumatic sorting device according to claim 2, characterized in that: A plurality of transition holes (434) are provided on the connecting cover plate (43), and the nozzle (2) heads of the plurality of nozzles (2) are inserted into the plurality of transition holes (434) in a one-to-one correspondence.

5. The pneumatic sorting device according to claim 4, characterized in that: Each of the transition holes (434) comprises: A conical hole (4341), wherein the nozzle (2) head of each nozzle (2) is inserted into one of the conical holes (4341); A straight hole (4342), wherein the tapered hole (4341) and the straight hole (4342) are connected to each other.

6. The pneumatic sorting device according to any one of claims 2 to 5, characterized in that: The angle adjustment component (3) comprises: A crank-connecting rod assembly (31), wherein there are two crank-connecting rod assemblies (31), and the two crank-connecting rod assemblies (31) are rotatably connected to two opposite inner side walls of the housing (1) in a one-to-one correspondence, and the upper ends of the two crank-connecting rod assemblies (31) are connected to the valve plate (4); A connecting rod (32), both ends of which are connected to one of the crank-connecting rod assemblies (31); A motor (5) is mounted on one side of the housing (1), and an output shaft of the motor (5) is connected to one of the crank-connecting rod assemblies (31).

7. The pneumatic sorting device according to claim 6, characterized in that: Each of the crank-connecting rod groups (31) comprises: A rotating shaft (311) is rotatably connected to the side wall of the housing (1), and an output shaft of the motor (5) is connected to the rotating shaft (311); a crank (312), one end of which is connected to the rotating shaft (311); A first connecting rod (313), one end of which is rotatably connected to the other end of the crank (312); A rocker (314), one end of which is rotatably connected to the other end of the first connecting rod (313); A connecting portion (315) is provided at the other end of the rocker (314), and the connecting portion (315) is connected to the fixed base plate (41).

8. A sorting method for a pneumatic sorting device, characterized in that: The pneumatic sorting device according to any one of claims 1 to 7, further comprising: Identifying the initial velocity V of the object conveying, the mass distribution of the object, the size of the object, and the spatial positional relationship between the object and the air hole of the nozzle (2), setting a predetermined trajectory Γ and continuously conveying the object; Set the angle of the valve plate (4) according to the predetermined trajectory Γ , according to the angle of the valve plate (4) Setting the rotation angle of the motor (5); The items are transported to the position corresponding to the nozzle (2) for air jet sorting, and the item sorting is completed.

9. The sorting method of the pneumatic sorting device according to claim 8, characterized in that: The angle of the valve plate (4) is set according to the predetermined trajectory Γ include: According to the predetermined trajectory Γ, the impact force generated by a single nozzle (2) on the object is: ; The impact force generated by a single nozzle (2) on the object is: Get the pressure on the object Angle with valve plate (4) .

10. The sorting method of the pneumatic sorting device according to claim 9, characterized in that: According to the predetermined trajectory Γ, the impact force generated by a single nozzle (2) on the object is: include: Determine the predetermined trajectory Γ based on the positional relationship between the coordinate vector of the object's centroid and the sorting bin to be entered; The impact force of a single nozzle (2) on the object is calculated based on the predetermined trajectory Γ .

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