Screening unit, rejection device and sorting system

Abstract

This invention discloses a screening unit, a rejection device, and a sorting system. The screening unit includes a fixed base, an electromagnetic brake, a working piece, and a reset component. The electromagnetic brake includes a first rotating body and a second rotating body. The first rotating body is rotatably mounted on the fixed base, and the second rotating body is rotatably mounted on the first rotating body. When energized, the electromagnetic brake constrains the first and second rotating bodies to rotate synchronously; when de-energized, it releases the first rotating body. The second rotating body is connected to a power source and rotates forward. The working piece is connected to the first rotating body. When the first rotating body rotates forward, it drives the working piece to move from a first position to a second position. The reset component is connected to the working piece or the first rotating body and drives the first rotating body to rotate in reverse towards the first position. When the working piece is in the first position, it guides the material in the first direction; when it is in the second position, it guides the material in the second direction. Alternatively, when the working piece rotates in reverse, it pushes the material in the first direction; when it rotates forward, it pushes the material in the second direction.

Description

Technical Field

[0001] This invention relates to the field of automatic sorting equipment technology, and in particular to a screening unit, rejection device and sorting system. Background Technology

[0002] Currently, many devices in the automation industry use flip-plate mechanisms for rejection. Flip-plate mechanisms on the market generally use linkage mechanisms, and each flip-plate requires a cylinder or electric cylinder to drive it. This results in high equipment costs. Furthermore, when multiple flip-plate mechanisms are set up at the same time, the multiple driving components make the entire device complex and cumbersome to control, increasing production and manufacturing costs and the equipment failure rate. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a screening unit that has a simple structure, stable operation, and one driving component can drive multiple screening units, saving driving costs while reducing the failure rate of the equipment.

[0004] Another object of the present invention is to provide a rejection device.

[0005] Another object of the present invention is to provide a sorting system.

[0006] A screening unit according to an embodiment of the present invention includes: a fixed base; an electromagnetic brake, the electromagnetic brake including a first rotating body and a second rotating body, the first rotating body being rotatably disposed on the fixed base, the second rotating body being rotatably disposed on the first rotating body, the electromagnetic brake being configured to constrain the first rotating body and the second rotating body to rotate synchronously when energized, and to release the first rotating body when de-energized, the second rotating body being used to connect to a power source to achieve forward rotation; a working piece, the working piece being connected to the first rotating body, the first rotating body driving the working piece to move from a first position to a second position when rotating forward; a reset member, the reset member being connected to the working piece or the first rotating body to drive the first rotating body to rotate in reverse toward the first position; wherein, when the working piece is in the first position, it guides the material in a first direction, and when the working piece is in the second position, it guides the material in a second direction; or, when the working piece rotates in reverse, it pushes the material in the first direction, and when the working piece rotates forward, it pushes the material in the second direction.

[0007] The screening unit according to the embodiments of the present invention has a simple structure, strong working stability, and is easy to operate. By setting an electromagnetic brake, the power of the power source is transmitted to the working part through the electromagnetic brake. One power source can drive multiple screening units, reducing the number of power sources. This not only saves driving costs but also reduces the failure rate of the equipment and improves the working stability of the screening unit.

[0008] In some embodiments, the fixed base has a fixed cavity, the electromagnetic brake is located in the fixed cavity, and the fixed base is provided with a through groove on the end or outer peripheral surface corresponding to the first rotating body. The working part is connected to the end or outer peripheral surface of the first rotating body through the through groove.

[0009] Optionally, the fixed cavity is a cylindrical cavity, and the first rotating body is coaxially disposed within the cylindrical cavity.

[0010] Specifically, the first rotating body has a first central hole, and the second rotating body is coaxially disposed in the first central hole, with the first central hole being coaxially disposed with the cylindrical cavity.

[0011] In some embodiments, when the through groove is provided on the outer peripheral surface of the fixed base corresponding to the first rotating body, the through groove is an arc shape coaxially arranged with the first rotating body, and the central angle of the arc shape is greater than the central angle from the first position to the second position.

[0012] In some embodiments, the work area includes: a first flap; a second flap connected to the first flap, with an included angle between the second flap and the first flap; and a connecting rod, one end of which is connected to the first flap or the second flap, and the other end of which is connected to the first rotating body.

[0013] According to an embodiment of the present invention, a rejection device includes: a drive shaft; at least one screening unit, wherein the screening unit is any of the screening units described above, and the second rotating body of the screening unit is connected to the drive shaft. When there are multiple screening units, the multiple screening units are arranged in the same row, and the second rotating bodies of the multiple screening units are all connected to the drive shaft.

[0014] According to the rejection device of the present invention, by setting a single drive shaft to drive multiple working parts simultaneously, the drive cost can be saved, the equipment failure rate can be reduced, and the working stability of the screening unit can be improved.

[0015] In some embodiments, the rejection device further includes: a mounting plate; two support seats connected to both ends of the mounting plate, each support seat having a support bearing, the drive shaft cooperating with the two support bearings, and the screening unit mounted on the mounting plate and located between the two support seats.

[0016] Specifically, the rejection device further includes a baffle plate connected to the mounting plate, the baffle plate being located in a first direction of the workpiece to receive material.

[0017] A sorting system according to an embodiment of the present invention includes: a conveying device for conveying materials along a conveying direction; an identification device having an identifier, the detection end of the identifier being disposed facing the conveying device; and a rejection device disposed on the conveying device, the rejection device being any of the rejection devices described above, the rejection device being located at the output end of the conveying device.

[0018] According to the sorting system of the present invention, by setting the above-mentioned rejection device, materials can be sorted quickly and accurately, and the sorting system has high working efficiency.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a three-dimensional outline view of the screening unit according to an embodiment of the present invention;

[0022] Figure 2 This is a front view of the filtering unit according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the screening unit according to an embodiment of the present invention;

[0024] Figure 4 This is a perspective view of the rejection device according to an embodiment of the present invention;

[0025] Figure 5 This is a front view of the rejection device according to an embodiment of the present invention;

[0026] Figure 6 This is a top view of the rejection device according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure when the workpiece is in the first position according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure when the workpiece is in the second position according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of a sorting system according to an embodiment of the present invention;

[0030] Figure 10 This is a cross-sectional view of a sorting system according to an embodiment of the present invention.

[0031] Figure label:

[0032] Sorting system 10000

[0033] Filtering unit 100

[0034] Fixing base 1, through groove 11, fixing boss 12, fixing base end cover 13, spring boss 14.

[0035] Electromagnetic brake 2, first rotating body 21, second rotating body 22, second central hole 221

[0036] Working component 3, first flap 31, second flap 32, connecting rod 33

[0037] Reset component 4, spring 41, spring retaining pin 42

[0038] 5. Cushion pad

[0039] Rejection device 1000

[0040] Drive shaft 6, timing pulley 61

[0041] Mounting plate 7

[0042] Support 8

[0043] baffle plate 9

[0044] Conveying device 2000

[0045] Identification device 3000, sight glass device 3001, material light device 3002,

[0046] Drive motor unit 4000,

[0047] Material distribution component 5000, first material collection component 5001, second material collection component 5002, material distribution channel component 5003. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] The following is for reference. Figures 1-10 The filtering unit 100 according to an embodiment of the present invention is described.

[0052] According to an embodiment of the present invention, the screening unit 100 includes: a fixed base 1, an electromagnetic brake 2, a working part 3, and a reset part 4. The electromagnetic brake 2 includes a first rotating body 21 and a second rotating body 22. The first rotating body 21 is rotatably disposed on the fixed base 1, and the second rotating body 22 is rotatably disposed on the first rotating body 21. The electromagnetic brake 2 is configured to constrain the first rotating body 21 and the second rotating body 22 to rotate synchronously when energized, and to release the first rotating body 21 when de-energized. The second rotating body 22 is used to connect to a power source to achieve forward rotation. The working part 3 is connected to the first rotating body 21. When the first rotating body 21 rotates forward, it drives the working part 3 to move from a first position to a second position. The reset part 4 is connected to the working part 3 or the first rotating body 21 to drive the first rotating body 21 to reverse towards the first position.

[0053] The fixed base 1 is the main body of the screening unit 100. The electromagnetic brake 2, the working part 3 and the reset part 4 are all directly or indirectly set on the fixed base 1. The fixed base 1 provides support and limit for the electromagnetic brake 2, the working part 3 and the reset part 4.

[0054] The electromagnetic brake 2 includes a first rotating body 21 and a second rotating body 22. When the electromagnetic brake 2 is in an inactive state, i.e., when the electromagnetic brake 2 is de-energized, the first rotating body 21 can rotate relative to the fixed base 1, and the second rotating body 22 can rotate relative to the first rotating body 21. Simultaneously, the second rotating body 22 can also rotate relative to the fixed base 1. When the electromagnetic brake 2 is energized, the first rotating body 21 and the second rotating body 22 are locked together. At this time, the second rotating body 22 cannot rotate relative to the first rotating body 21. The first and second rotating bodies 21 and 22 can only rotate synchronously, but they can still rotate relative to the fixed base 1. The second rotating body 22 is connected to a power source, which can drive the second rotating body 22 to rotate. When the electromagnetic brake 2 is de-energized, the power source can only drive the second rotating body 22 to rotate; when the electromagnetic brake 2 is energized, the power source can drive the first rotating body 21 and the second rotating body 22 to rotate synchronously.

[0055] When the power source normally drives the second rotating body 22, the second rotating body 22 rotates clockwise. Figure 2 and Figure 3 Taking the coordinate orientation shown as an example, the second rotating body 22 rotating in a clockwise direction is the second rotating body 22 rotating in the forward direction, and the second rotating body 22 rotating in a counterclockwise direction is the second rotating body 22 rotating in the reverse direction. The above-mentioned clockwise and counterclockwise directions are only based on the orientation system shown in the figure, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the electromagnetic brake 2 must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0056] The working piece 3 is the main component of the screening unit 100 for sorting materials. The working piece 3 is connected to the first rotating body 21. Therefore, when the second rotating body 22 rotates synchronously with the first rotating body 21, the first rotating body 21 can drive the working piece 3 to rotate forward. When the working piece 3 rotates forward, it can move from the first position to the second position.

[0057] The reset element 4 can be connected to the working piece 3 or to the first rotating body 21, depending on actual needs. The reset element 4 can drive the working piece 3 to move towards the first position. It can be understood that the reset element 4 can cause the first rotating body 21 to reverse, but the reset element 4 only causes the first rotating body 21 to reverse, thereby returning the working piece 3 to the first position. For example, the reset element 4 can cause the first rotating body 21 to reverse, moving the working piece 3 from the second position to the first position. However, when the working piece 3 is already in the first position, the reset element 4 can no longer cause the first rotating body 21 to reverse. The reset element 4 is suitable for bringing the working piece 3 back to the first position so that the power source can again drive the working piece 3 to move from the first position to the second position.

[0058] It is understood that the working part 3 is connected to the first rotating body 21. The working part 3 can be directly connected to the first rotating body 21 or connected through other transmission elements. Therefore, when the rotation of the first rotating body 21 drives the working part 3 to move, the working part 3 can rotate or move linearly. The specific movement mode can be selected according to the device structure and actual needs, all of which fall within the protection scope of the present invention.

[0059] The movement process of the working piece 3 is briefly described below. First, the electromagnetic brake 2 is de-energized, the power source is started, and the power source drives the second rotating body 22 to rotate forward, while the first rotating body 21 and the working piece 3 remain stationary. Then, the electromagnetic brake 2 is energized, the first rotating body 21 and the second rotating body 22 are locked together, and the driving force is transmitted from the second rotating body 22 to the first rotating body 21. The first rotating body 21 and the second rotating body 22 rotate forward synchronously. At this time, the working piece 3 moves from the first position to the second position.

[0060] When the working piece 3 reaches the second position, the electromagnetic brake 2 is de-energized, allowing the first rotating body 21 and the second rotating body 22 to rotate relative to each other. The second rotating body 22 continues to rotate forward under the drive of the power source, while the reset member 4 begins to work, causing the first rotating body 21 to rotate in reverse under the drive of the reset member 4. At this time, the working piece 3 moves from the second position to the first position and returns to the first position under the drive of the reset member 4. Alternatively, when the working piece 3 reaches the second position, the power source can be stopped, while the electromagnetic brake 2 remains energized. In this case, the first rotating body 21 and the second rotating body 22 remain locked, but there is no driving force to drive them to continue rotating in reverse. At this time, the reset member 4 begins to work, causing the first rotating body 21 and the second rotating body 22 to rotate in reverse under the drive of the reset member 4. The working piece 3 then moves from the second position to the first position and returns to the first position under the drive of the reset member 4. This can be selected according to actual needs, and all of these options fall within the scope of protection of this invention.

[0061] When the workpiece 3 is in the first position, it guides the material in the first direction; when it is in the second position, it guides the material in the second direction, thus achieving material sorting. For example, when material is transported to the workpiece 3, if the material meets preset conditions, the workpiece 3 moves to the first position, and the material is guided in the first direction by the workpiece 3 in the first position. If the material does not meet the preset conditions, the workpiece 3 moves to the second position, and the material is guided in the second direction by the workpiece 3 in the second position. The material is thus sorted and separated into two different positions. The workpiece 3 only guides the movement of the material and does not actively drive the material handling direction. This method places less burden on the workpiece 3, resulting in a longer service life.

[0062] Alternatively, when the movement of the working piece 3 is such that it rotates in the same direction as the first rotating body 21, the working piece 3 pushes the material in the first direction when it reverses, and pushes the material in the second direction when it rotates forward. For example, when the material is transported to the working piece 3 and moves onto it, if the material meets the preset conditions, the working piece 3 reverses and pushes the material in the first direction; if the material does not meet the preset conditions, the working piece 3 rotates forward and pushes the material in the second direction. The material is then sorted and separated into two different positions. The working piece 3 not only guides the movement of the material but also drives it to move in a specific direction. This method can sort materials more quickly and improve the working efficiency of the screening unit 100. Both sorting methods fall within the protection scope of this invention and can be selected according to the actual situation.

[0063] The screening unit 100 of this embodiment has a simple structure, strong working stability, and is easy to operate.

[0064] The working piece 3 of this invention is suitable for sorting materials. Therefore, the working piece 3 needs to move frequently between the first position and the second position. When the working piece 3 moves from the first position to the second position, it needs to be driven by a power source. When the working piece 3 moves from the second position to the first position, it needs to avoid resistance from the power source. Therefore, the working piece 3 requires frequent switching of the power source during operation. However, the power of the working piece 3 of this invention does not come directly from the power source. Instead, it is transmitted to the working piece 3 through the transmission of the electromagnetic brake 2. The electromagnetic brake 2 includes a clever design of a first rotating body 21 and a second rotating body 22. The transmission of driving force can be controlled by simply controlling the switching of the electromagnetic brake 2. When the electromagnetic brake 2 is energized, the power source can drive the working piece 3 to move. When the electromagnetic brake 2 is de-energized, the power source cannot drive the working piece 3 to move. Therefore, the power source does not need to be frequently switched on and off. The movement requirements of the working piece 3 can be met simply by controlling the electromagnetic brake 2.

[0065] Therefore, multiple screening units 100 of the present invention can be connected to a single power source, instead of requiring a separate power source for each screening unit 100. One power source simultaneously provides power to multiple working parts 3. When the working parts 3 do not require driving force from the power source, the power transmission can be disconnected using the corresponding electromagnetic brake 2. Each screening unit 100 operates independently and does not interfere with each other. By using a single power source to drive multiple screening units 100, the number of power sources is reduced, which not only saves on driving costs but also lowers the equipment failure rate and improves the operational stability of the screening units 100.

[0066] The screening unit 100 according to the embodiment of the present invention has a simple structure, strong working stability, and is easy to operate. By setting an electromagnetic brake 2, the power of the power source is transmitted to the working part 3 through the electromagnetic brake 2. One power source can drive multiple screening units 100, reducing the number of power sources. This not only saves driving costs but also reduces the failure rate of the equipment and improves the working stability of the screening unit 100.

[0067] In some specific embodiments of the present invention, the second rotating body 22 is constructed as a gear sleeve. When the electromagnetic brake 2 is energized, the gear sleeve is locked with the first rotating body 21, so that the gear sleeve can rotate synchronously with the first rotating body 21.

[0068] In some specific embodiments of the present invention, the reset element 4 is a spring 41, with its two ends connected to the fixed base 1 and the working piece 3, respectively. The spring 41 can accumulate elastic potential energy when the working piece 3 moves. After being stretched or compressed, the spring 41 has a tendency to return to its original state. When the working piece 3 is no longer driven by a power source, the elastic potential energy of the spring 41 is the main driving force, and the spring 41 can drive the working piece 3 back to its initial first position. By setting the spring 41 as the reset element 4, the properties of the spring 41 itself can be used to drive the working piece 3 back to its original position without the need for additional driving elements, further reducing the driving cost of the screening unit 100. In some specific embodiments of the present invention, when the working piece 3 is in the first position, the spring 41 is in its normal state; when the working piece 3 is in the second position, the spring 41 is stretched and has a tendency to contract.

[0069] In some specific embodiments of the present invention, such as Figure 1 and Figure 2 As shown, two spring bosses 14 are provided on the fixed base 1. The spring bosses 14 extend outward toward the fixed base 1 and are arranged opposite each other. A spring fixing pin 42 is connected between the two spring bosses 14. One end of the spring 41 is connected to the spring fixing pin 42, and the other end of the spring 41 is connected to the working part 3.

[0070] In some embodiments of the present invention, the fixed base 1 has a fixed cavity, the electromagnetic brake 2 is located in the fixed cavity, and the fixed base 1 is provided with a through groove 11 corresponding to the end or outer peripheral surface of the first rotating body 21. The working piece 3 is connected to the end or outer peripheral surface of the first rotating body 21 through the through groove 11.

[0071] The first rotating body 21 and the second rotating body 22 are both set in the fixed cavity. The fixed seat 1 plays a role in protecting and limiting the electromagnetic brake 2. A through groove 11 is provided on the fixed seat 1 so that the first rotating body 21 and the working piece 3 can be connected through the through groove 11.

[0072] The through groove 11 can be set on the surface corresponding to the end of the fixed base 1 and the first rotating body 21, and the working part 3 is connected to the end of the first rotating body 21 through the through groove 11; the through groove 11 can also be set on the surface corresponding to the outer peripheral surface of the fixed base 1 and the first rotating body 21, and the working part 3 is connected to the outer peripheral surface of the first rotating body 21 through the through groove 11. The opening position of the through groove 11 can be selected according to actual needs.

[0073] In some embodiments of the present invention, the fixed cavity is a cylindrical cavity, and the first rotating body 21 is coaxially disposed within the cylindrical cavity. The cylindrical cavity has an axis, and the first rotating body 21 is constructed as a rotating body and also has an axis. The axis of the cylindrical cavity and the axis of the first rotating body 21 are located on the same straight line, which can prevent the first rotating body 21 from eccentrically rotating, improve the rotational stability of the first rotating body 21, and prevent the first rotating body 21 from interfering with the motion of the fixed seat 1.

[0074] Specifically, the first rotating body 21 has a first central hole, and the second rotating body 22 is coaxially disposed within the first central hole, which is coaxial with the cylindrical cavity. The second rotating body 22 is also constructed as a rotating body, and its axis is on the same straight line as the axis of the cylindrical cavity. Therefore, the axis of the second rotating body 22 is also on the same straight line as the axis of the first rotating body 21. The second rotating body 22 has high rotational stability, avoiding eccentric rotation and preventing motion interference between the second rotating body 22 and the first rotating body 21.

[0075] Furthermore, the second rotating body 22 has a second central hole 221, which is used to connect the drive shaft 6 of the power source. Therefore, the axis of the second central hole 221 is on the same straight line as the axis of the drive shaft 6. The second central hole 221 is coaxially arranged with the first central hole. Therefore, the axis of the drive shaft 6, the axis of the second rotating body 22, the axis of the first rotating body 21 and the axis of the cylindrical cavity are all on the same straight line, which can avoid motion interference between the drive shaft 6 and the second rotating body 22. The drive shaft 6 can drive the second rotating body 22 to rotate stably.

[0076] In some embodiments of the present invention, the outer peripheral surface of the first rotating body 21 is in contact with the inner peripheral surface of the cylindrical cavity. The outer peripheral surface of the first rotating body 21 and / or the inner peripheral surface of the cylindrical cavity can be specially treated to reduce the friction between the outer peripheral surface of the first rotating body 21 and the inner peripheral surface of the cylindrical cavity, so that the first rotating body 21 can rotate smoothly relative to the fixed seat 1.

[0077] In some other embodiments of the present invention, an inner bearing is installed in the cylindrical cavity, and a first rotating body 21 is installed in the inner bearing. The first rotating body 21 can rotate relative to the inner bearing, thereby allowing the first rotating body 21 to rotate smoothly relative to the fixed seat 1.

[0078] In some embodiments of the present invention, the outer peripheral surface of the second rotating body 22 is in contact with the inner peripheral surface of the first central hole. When the electromagnetic brake 2 is energized, the outer peripheral surface of the second rotating body 22 and the inner peripheral surface of the first rotating body 21 are locked together.

[0079] In some embodiments of the present invention, a snap-fit ​​groove is provided on the inner circumferential surface of the second central hole 221, and a snap-fit ​​post is provided on the outer circumferential surface of the drive shaft 6, which can snap-fit ​​with the snap-fit ​​groove. After the drive shaft 6 extends into the second central hole 221, the snap-fit ​​groove and the snap-fit ​​post snap-fit ​​with each other, locking the drive shaft 6 and the second rotating body 22 in the circumferential direction, so that the drive shaft 6 can drive the second rotating body 22 to rotate. Through the snap-fit ​​engagement, the drive shaft 6 and the second rotating body 22 are easy to assemble and disassemble.

[0080] The snap-fit ​​connection between the drive shaft 6 and the second rotating body 22 is a specific embodiment of the present invention and is only used for illustrative purposes. However, after reading the above technical solution, those skilled in the art can obviously apply other connection methods of the drive shaft and the second rotating body 22 to the technical solution of the present invention, which also falls within the protection scope of the present invention.

[0081] In some specific embodiments of the present invention, such as Figure 1 and Figure 3 As shown, a through groove 11 is provided on the outer peripheral surface of the fixed base 1 corresponding to the first rotating body 21. The working piece 3 is connected to the outer peripheral surface of the first rotating body 21 through the through groove 11. When the first rotating body 21 rotates, it drives the working piece 3 to rotate around the axis of the cylindrical cavity as the center of rotation. Therefore, the movement trajectory of the working piece 3 is arc-shaped. The through groove 11 on the fixed base 1 is also an arc-shaped groove coaxial with the first rotating body 21 to meet the movement requirements of the working piece 3 and avoid interference with the movement of the working piece 3.

[0082] In some embodiments of the present invention, the central angle of the arc is greater than the central angle from the first position to the second position, and the inner walls of the two ends of the through groove 11 are the first inner wall and the second inner wall, respectively, and the included angle between the first inner wall and the second inner wall is greater than the central angle from the first position to the second position.

[0083] The workpiece 3 is connected to the first rotating body 21 through the through groove 11. Therefore, the groove 11 defines the range of motion of the workpiece 3. The central angle of the arc of the through groove 11 is larger than the central angle from the first position to the second position. Therefore, the movable distance of the workpiece 3 is greater than that from the first position to the second position. This design provides a buffer for the movement of the workpiece 3, preventing it from being obstructed or impacted when moving to the first or second position, thus reducing its service life.

[0084] Furthermore, by designing the arc-shaped central angle of the through groove 11 to be greater than the central angle from the first position to the second position, the working piece 3 can continue to move towards the first position or the second position for a period of time. The working piece 3 can maintain the guidance or pushing of the material, thus avoiding the situation where the working piece 3 is driven by the spring 41 as soon as it reaches the first position or the second position, resulting in reverse movement. This allows the material to be stably guided or pushed to the predetermined position, improving the working stability of the working piece 3.

[0085] When a power source drives multiple screening units 100, the multiple screening units 100 are independent of each other. Therefore, the movement stroke of the workpiece 3 in the multiple screening units 100 is not consistent. By designing the arc-shaped central angle of the through groove 11 to be greater than the central angle from the first position to the second position, a margin can be provided for the movement of the workpiece 3, avoiding motion interference between the multiple screening units 100.

[0086] The following is an example of a specific embodiment. A power source drives multiple screening units 100, where two adjacent screening units 100 are a first screening unit and a second screening unit, respectively. The first screening unit has a first working piece, and the second screening unit has a second working piece. At a certain moment, both the first and second working pieces need to move to their corresponding second positions to guide the material in a second direction. When the first working piece has moved to the second position, the second working piece is still moving towards the second position. Since the second working piece needs to continue moving towards the second position, the power source cannot be directly stopped. However, if the electromagnetic brake 2 of the first screening unit is de-energized at this time, the first working piece will move towards the first position under the action of the spring 41. That is, the first working piece will return to the first position as soon as it reaches the second position, which may not achieve the function of being in the second position to guide the material in the second direction. Therefore, the electromagnetic brake 2 of the first screening unit cannot be de-energized either, and the first working piece will continue to move for a certain distance. The arc-shaped central angle of the through groove 11 is designed to be larger than the central angle between the first and second positions, which satisfies the movement requirements of the first working piece and prevents damage to the working piece 3. After the first working piece guides the material to the second direction, the electromagnetic brake 2 of the first screening unit can be immediately de-energized, and the first working piece can move to the first position under the drive of the spring 41. During this process, the second screening units are not affected by the movement of the first screening unit and continue to move to the corresponding second position. The design of the through groove 11 in this embodiment of the invention enables the multiple screening units 100 to move stably without motion interference between them.

[0087] In some embodiments of the present invention, buffer pads 5 are provided on the inner walls of the arc-shaped ends of the through groove 11. By providing buffer pads 5, the impact force received by the workpiece 3 when it comes into contact with the through groove 11 can be reduced, thereby extending the service life of the workpiece 3.

[0088] In some specific embodiments of the present invention, the buffer pad 5 is a rubber component, which can not only reduce the impact force on the working part 3, but also generate rebound, which is beneficial for the working part 3 to move in the opposite direction under the drive of the spring component 14.

[0089] In some specific embodiments of the present invention, the working component 3 includes: a first flap 31, a second flap 32 and a connecting rod 33. The second flap 32 is connected to the first flap 31, and there is an included angle between the second flap 32 and the first flap 31. One end of the connecting rod 33 is connected to the first flap 31 or the second flap 32, and the other end of the connecting rod 33 is connected to the first rotating body 21.

[0090] The connecting rod 33 passes through the through groove 11 to connect the first flap 31 or the second flap 32 to the outer peripheral surface of the first rotating body 21. One end of the connecting rod 33 can be connected to the first flap 31, and the other end can be connected to the second flap 32. The other end of the connecting rod 33 can also be connected to the connection between the first flap 31 and the second flap 32. This can be selected according to actual needs.

[0091] The angled design between the first flap 31 and the second flap 32 can improve the structural strength of the workpiece 3 and extend its service life.

[0092] In addition, the angled design between the first flap 31 and the second flap 32 enhances their functionality. The first flap 31 and the second flap 32 play different roles when the workpiece 3 is in the first position and the second position, respectively. Figure 7 As shown, when the workpiece 3 is in the first position, the first flap 31 guides the material in the first direction, and the second flap 32 acts as a limit and block, intercepting excessively fast material onto the first flap 31 to prevent it from rushing out directly; Figure 8 As shown, when the workpiece 3 is in the second position, the first flap 31 and the second flap 32 together guide the material in the second direction.

[0093] In some specific embodiments of the present invention, one end of the spring 41 is connected to the spring fixing pin 42, and the other end of the spring 41 is connected to the connecting rod 33.

[0094] In some embodiments of the present invention, a connecting tube is provided on the outer periphery of the first rotating body 21, and the end of the connecting rod 33 is inserted into the connecting tube to connect the connecting rod 33 to the first rotating body 21. Connecting the first rotating body 21 and the connecting rod 33 through the connecting tube facilitates the assembly and disassembly of the working part 3 and the electromagnetic brake 2, making the screening unit 100 easy to assemble, disassemble, and use, and easy to store when not in use.

[0095] In some specific embodiments of the present invention, a fixing boss 12 is provided on the fixing base 1. The fixing boss 12 extends in a direction away from the fixing cavity and is provided with a threaded hole. The fixing member can fix the fixing boss 12 to the mounting surface through the threaded hole, thereby mounting the fixing boss 12 on the mounting surface.

[0096] In some specific embodiments of the present invention, the fixing seat 1 further includes a fixing seat end cover 13. There are two fixing seat end covers 13, which are respectively disposed on two end faces in the axial direction of the fixing seat 1. The fixing seat end cover 13 covers the fixing cavity, that is, the fixing seat end cover 13 restricts the electromagnetic brake 2 in the fixing cavity. The fixing seat 1 can reduce the entry of dust, water droplets and other contaminants into the fixing cavity, protect the electromagnetic brake 2, improve the working stability of the electromagnetic brake 2, and extend the service life of the electromagnetic brake 2.

[0097] According to an embodiment of the present invention, the rejection device 1000 includes: a drive shaft 6 and at least one screening unit 100. The screening unit 100 is any of the screening units 100 described above. The second rotating body 22 of the screening unit 100 is connected to the drive shaft 6. When there are multiple screening units 100, the multiple screening units 100 are arranged in the same row, and the second rotating body 22 of the multiple screening units 100 is connected to the drive shaft 6.

[0098] The rejection device 1000 includes multiple screening units 100, which can simultaneously sort multiple materials. The drive shaft 6 passes through the second center holes 221 of multiple second rotating bodies 22, so that the drive shaft 6 can be connected to the second rotating bodies 22 of multiple screening units 100, realizing that one drive shaft 6 can drive multiple working parts 3 at the same time.

[0099] According to the present invention, the rejection device 1000 can simultaneously drive multiple working parts 3 by setting a drive shaft 6, which can save drive costs, reduce equipment failure rate, and improve the working stability of the screening unit 100.

[0100] In some embodiments, the rejection device 1000 further includes: a mounting plate 7 and two support seats 8, the two support seats 8 being connected to both ends of the mounting plate 7, each support seat 8 being provided with a support bearing, and a drive shaft 6 cooperating with the two support bearings, allowing the drive shaft 6 to rotate relative to the support seat 8, the support seats 8 being able to limit the movement of the drive shaft 6, and the drive shaft 6 having high movement stability. The screening unit 100 is mounted on the mounting plate 7 via a fixing boss 12 and is located between the two support seats 8.

[0101] In some embodiments, such as Figure 4 and Figure 7 As shown, the rejection device 1000 also includes a baffle plate 9 connected to the mounting plate 7, the baffle plate 9 being located in the first direction of the working piece 3 to receive materials.

[0102] like Figure 7 As shown, when the workpiece 3 is in the first position, the first flap 31 guides the material in the first direction, the second flap 32 acts as a limit and block, and the baffle 9 is located in the first direction of the first flap 31. After the material is guided by the first flap 31, it is transferred to the baffle 9 and continues to be transported to the predetermined position under the action of the baffle 9. Figure 8 As shown, when the workpiece 3 is in the second position, the material is guided in the second direction. At this time, the baffle plate 9 does not serve to receive the material. The first flap 31 and the second flap 32 together guide the material in the second direction.

[0103] According to an embodiment of the present invention, a sorting system 10000 includes: a conveying device 2000, an identification device 3000, and a rejection device 1000. The conveying device 2000 is used to convey materials along the conveying direction. The identification device 3000 has an identifier, the detection end of which is disposed facing the conveying device. The rejection device 1000 is disposed on the conveying device 2000. The rejection device 1000 is any of the rejection devices described above and is located at the output end of the conveying device.

[0104] In this invention, the structural form of the conveying device 2000 is not limited. The conveying device 2000 includes a carrying member for carrying materials and moving the materials along the conveying direction. The carrying member can be horizontally arranged, inclined, or its carrying surface can be a curved surface that gradually extends downward along the conveying direction, etc.

[0105] In some embodiments of the present invention, the conveying device 2000 may be a non-powered device, for example, the carrying surface of the object is a straight or curved surface that gradually extends downward along the conveying direction. In this case, the material on the object can gradually slide downward under the action of gravity to complete the material conveying.

[0106] In other embodiments of the present invention, the conveying device 2000 may be a power device, and the load may move along the conveying direction. When the load moves, it drives the material to move to complete the material conveying. The load may be a net, a plate, or a conveyor belt. When the load is a net or a plate, the load may be driven by a sprocket transmission mechanism, or the load may be mounted on a chassis with wheels.

[0107] In some specific embodiments of the present invention, such as Figure 9 and Figure 10 The carrier is a conveyor belt, which is arranged in the front-to-back direction. The material is placed on the conveyor belt, and the conveyor belt drives the material to move from the identification device 3000 to the rejection device 1000 in the front-to-back direction.

[0108] The identification device 3000 is configured to correspond to the conveying device 2000, and its specific installation position relative to the conveying device 2000 is not limited. For example, the identification device 3000 can be positioned above the load, or it can be directly mounted on the load. In some designs, the identification device 3000 can even be positioned on the horizontal side of the load, or below it. For example, when the load is a mesh, the identifier located below can identify the material. Similarly, when the load is transparent, the identifier located below can also identify the material.

[0109] In the present invention, the identification device 3000 and the rejection device 1000 can be arranged sequentially along the conveying direction of the conveying device 2000, and the identification device 3000 can also be directly installed on the rejection device 1000.

[0110] In addition, the installation position of the identifier is more flexible compared to the carrier. The identifier can be located only on the top side of the carrier, or only on the bottom side of the carrier. Alternatively, there can be multiple identifiers, with some located on the top side of the carrier and some on the bottom side.

[0111] In some embodiments, the recognizer is a visual recognizer, which can use visible light, infrared light, or X-rays for visual recognition. Specifically, the recognizer includes a viewing mirror device 3001, which can be various types of cameras, etc.

[0112] In some embodiments, the identifier further includes an objective lens lamp device 3002, which can be a supplementary light or the like, so that the viewing mirror device 3001 can obtain an image of the material in a better lighting environment, thereby improving the image clarity and thus improving the recognition accuracy of the identification device 3000.

[0113] Furthermore, the identification device 3000 also includes a data processing device for processing the identification results of the identifier. The data processing device is electrically connected to the rejection device 1000 and controls the corresponding actions of the rejection device 1000, causing the rejection device 1000 to reject materials based on the identification results of the identification device 3000.

[0114] In some specific embodiments of the present invention, such as Figure 9 and Figure 10 As shown, the rejection device 1000 extends in the left-right direction and covers the conveying device 2000. The multiple screening units 100 in the rejection device 1000 are spaced apart in the left-right direction. The detection range of the multiple screening units 100 covers the entire left-right area of ​​the conveying device 200, thereby improving the sorting accuracy of materials.

[0115] In some embodiments, the sorting system 10000 further includes a drive motor device 4000, which is connected to the conveying device 2000 and can drive the drive shaft 6 to rotate.

[0116] Specifically, a synchronous pulley 61 is provided at one axial end of the drive shaft 6. The drive motor and the drive shaft 6 are connected by a synchronous belt. The synchronous belt is connected to the drive motor device 4000 and the synchronous pulley 61, so that the drive motor device 4000 can drive the drive shaft 6 to rotate.

[0117] In some embodiments, such as Figure 9 As shown, the sorting system 10000 also includes a material sorting component, which includes a first material collecting component and a second material collecting component. The first material collecting component is located below the rejection device 1000 and in a first direction of the multiple screening units 100. The second material collecting component is located below the rejection device 1000 and in a second direction of the multiple screening units 100. The material is transported to the rejection device 1000 by the conveying device 2000. The material has been identified and marked by the identification device 3000. The material that meets the preset conditions is driven to move in the first direction and finally falls into the first material collecting component. The material that does not meet the preset conditions is driven to move in the second direction and finally falls into the second material collecting component. The material is thus sorted and collected in two different locations.

[0118] Specifically, the material sorting component also includes a material sorting channel component, which internally defines a first channel and a second channel. The first channel connects the rejection device 1000 to the first collection component, and the second channel connects the rejection device 1000 to the second collection component. By setting the material sorting channel component, the material can be stably transported to the first collection component or the second collection component, thereby improving the working stability of the sorting system 10000 in sorting materials.

[0119] Other configurations of the screening unit 100 according to embodiments of the present invention, such as the electromagnetic brake 2, and its operation are known to those skilled in the art and will not be described in detail here.

[0120] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0121] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A screening unit, characterized in that, include: Fixed base; An electromagnetic brake, comprising a first rotating body and a second rotating body, wherein the first rotating body is rotatably mounted on the fixed base, and the second rotating body is rotatably mounted on the first rotating body, the electromagnetic brake being configured to constrain the first rotating body and the second rotating body to rotate synchronously when energized, and to release the first rotating body when de-energized, wherein the second rotating body is used to connect to a power source to achieve forward rotation; The workpiece is connected to the first rotating body, and when the first rotating body rotates clockwise, it drives the workpiece to move from a first position to a second position. A reset component is connected to the working piece or the first rotating body to drive the first rotating body to reverse toward the first position; Wherein, when the workpiece is in the first position, the material is guided in the first direction; when the workpiece is in the second position, the material is guided in the second direction. Alternatively, when the workpiece reverses, the material is pushed in the first direction, and when the workpiece rotates forward, the material is pushed in the second direction. The second rotating body has a second central hole, which is used to connect the drive shaft of the power source; The first rotating body has a first central hole, and the second rotating body is coaxially disposed within the first central hole.

2. The screening unit according to claim 1, characterized in that, The fixed base has a fixed cavity, the electromagnetic brake is located in the fixed cavity, and the fixed base is provided with a through groove on the end or outer peripheral surface of the first rotating body, and the working part is connected to the end or outer peripheral surface of the first rotating body through the through groove.

3. The screening unit according to claim 2, characterized in that, The fixed cavity is a cylindrical cavity, and the first rotating body is coaxially disposed inside the cylindrical cavity.

4. The screening unit according to claim 3, characterized in that, The first central hole is coaxially arranged with the cylindrical cavity.

5. The screening unit according to claim 2, characterized in that, When the fixed base is provided with the through groove corresponding to the outer peripheral surface of the first rotating body, the through groove is an arc shape coaxial with the first rotating body, and the central angle of the arc shape is greater than the central angle from the first position to the second position.

6. The screening unit according to any one of claims 1-5, characterized in that, The workpiece includes: First flip board; A second flap is connected to the first flap, and there is an angle between the second flap and the first flap; A connecting rod, one end of which is connected to the first flap or the second flap, and the other end of which is connected to the first rotating body.

7. A rejection device, characterized in that, include: Drive shaft; At least one screening unit, wherein the screening unit is a screening unit according to any one of claims 1-6, the second rotating body of the screening unit is connected to the drive shaft, and when there are multiple screening units, the multiple screening units are arranged in the same row, and the second rotating body of the multiple screening units is connected to the drive shaft.

8. The rejection device according to claim 7, characterized in that, Also includes: Mounting plate; Two support seats are connected to both ends of the mounting plate. Each support seat is provided with a support bearing. The drive shaft is fitted on the two support bearings. The screening unit is mounted on the mounting plate and located between the two support seats.

9. The rejection device according to claim 8, characterized in that, It also includes a baffle plate connected to the mounting plate, the baffle plate being positioned in a first direction of the workpiece to receive material.

10. A sorting system, characterized in that, include: A conveying device for conveying materials along a conveying direction; An identification device, the identification device having an identifier, the detection end of the identifier being disposed toward the conveying device; A rejection device is provided on the conveying device, and the rejection device is the rejection device according to any one of claims 7-9, and the rejection device is located at the output end of the conveying device.

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