Screening device and material screening system
By driving the screening component to rotate, swing, and vibrate, the problems of low screening efficiency and severe wear of small parts are solved, achieving fast and efficient material sorting and reducing wear.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BGI CHANGZHOU
- Filing Date
- 2024-12-05
- Publication Date
- 2026-06-05
AI Technical Summary
Existing technologies have low efficiency in screening small and medium-sized parts, making it difficult to achieve fast and efficient sorting, and the screening process causes severe wear and tear on the materials.
The drive component drives the screening component to rotate and swing along the first and second directions. Combined with the screening component, the target material is captured. The rapid batch screening of materials is achieved through tilting, swinging and vibration, reducing wear.
It enables rapid batch screening of materials, improves screening efficiency, reduces material wear, and features a simple and convenient structure that is easy to maintain.
Smart Images
Figure CN122141944A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of material screening technology, and in particular to a screening device and a material screening system. Background Technology
[0002] For the screening of small parts, the commonly used screening methods include the following: one method is to identify and locate the parts by uniform feeding and high-speed rotation; another method is to feed the parts to a vibratory feeder and then transport the parts to a fixed position by a synchronous belt for fixed-point identification and positioning; and yet another method is to disperse the parts by a flexible vibratory feeder and then use a camera to identify and locate the parts.
[0003] However, the screening methods mentioned above have low screening efficiency, making it difficult to achieve fast and efficient material sorting, and they also cause significant wear and tear on the materials during the screening process. Summary of the Invention
[0004] In order to address at least one of the above-mentioned deficiencies, this application proposes a screening device capable of achieving efficient material sorting.
[0005] Additionally, this application also provides a material screening system that utilizes this screening device.
[0006] In a first aspect, embodiments of this application provide a screening device, the screening device comprising: a driving component and a screening component, the driving component including a first driving mechanism; the screening component disposed on the first driving mechanism, the screening component including a screening structure and a screening member located within the screening structure, the screening structure having a receiving cavity for containing the material, wherein the first driving mechanism is configured to drive the screening component to rotate and oscillate along a first direction and a second direction opposite to the first direction, so as to move the material within the receiving cavity, and the screening member is configured to capture target material when the material moves within the receiving cavity.
[0007] In some possible embodiments, the screening component includes a plurality of screening slots, the openings of which communicate with the receiving cavity, and the screening slots are configured to capture the target material as the material moves within the receiving cavity.
[0008] In some possible embodiments, the screening component further includes an inclined surface located around the screening groove and connected to the opening of the screening groove, the inclined surface being inclined toward the screening groove from one end near the bottom surface of the receiving cavity.
[0009] In some possible embodiments, the depth of the same screening tank is inconsistent along the direction of material movement.
[0010] In some possible embodiments, the plurality of screening slots are arranged in an array; and / or the apertures and / or shapes of the plurality of screening slots are different.
[0011] In some possible embodiments, the first driving mechanism includes a first driving member, a driving rod connected to the first driving member, a mounting plate connected to the driving rod, a swing shaft seat disposed on one side of the first driving member, and an inclined swing shaft rotatably connected to the swing shaft seat. The mounting plate is disposed on the inclined swing shaft, and the screening assembly is disposed on the mounting plate. The first driving member is configured to drive the driving rod, thereby causing the mounting plate and the inclined swing shaft to rotate along the first direction and the second direction, so as to cause the screening assembly to rotate and swing along the first direction and the second direction.
[0012] In some possible embodiments, the drive assembly further includes a second drive mechanism rotatably connected to the first drive mechanism, the screening assembly being disposed on the second drive mechanism, and the second drive mechanism being configured to drive the screening assembly to vibrate.
[0013] In some possible embodiments, the second driving mechanism includes a second driving member disposed on the first driving mechanism and a screening mounting plate disposed on the second driving member, wherein the screening component is disposed on the screening mounting plate.
[0014] Secondly, embodiments of this application provide a material screening system, which includes a screening device and a pick-and-place device. The screening device is as described above, and the pick-and-place device is configured to transfer the target material captured by the screening device.
[0015] In some possible embodiments, the pick-and-place device includes a fixed plate and a plurality of suction heads located on the fixed plate, the suction heads being configured to pick up the target material captured by the screening component.
[0016] In some possible embodiments, the material screening system further includes an identification device configured to identify the target material captured by the screening component.
[0017] The screening device provided in this application embodiment drives the screening component to rotate along a first direction and a second direction via a drive component. This causes the screening structure to tilt and oscillate, thereby moving the material within the receiving cavity and capturing it through the screening component. This achieves rapid batch screening of the target material, and the screening operation is simple, convenient, and highly efficient. Furthermore, the tilting and oscillation of the screening structure allows the screening component to fully capture the target material. The controllable tilting and rotation action reduces wear between the screening structure and the material. The screening device is also compact and easy to maintain. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a system framework diagram of a material screening system according to an embodiment of this application.
[0020] Figure 2 This is a partial structural diagram of a material screening system according to an embodiment of this application.
[0021] Figure 3 This is a schematic diagram of the structure of a screening device according to an embodiment of this application.
[0022] Figure 4 for Figure 3 The filtering component contains a structural diagram of the material.
[0023] Figure 5 This is a schematic diagram of the structure of a screening device according to an embodiment of this application from another perspective.
[0024] Figure 6 for Figure 3 A schematic diagram of the structure of the first drive mechanism.
[0025] Figure 7 for Figure 3 A schematic diagram of the structure of the filtering component.
[0026] Figure 8 for Figure 7 Cross-sectional view along VIII-VIII.
[0027] Figure 9 for Figure 8 Enlarged view of part A in the middle.
[0028] Figure 10 This is a schematic diagram of the structure of the screening component for screening materials in another embodiment of this application.
[0029] Figure 11 for Figure 10 Enlarged view of section B.
[0030] Figures 12 to 15 This is a state diagram of the screening components during the material screening process of the screening device.
[0031] Explanation of main component symbols The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation
[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0033] It should be noted that when a component is described as "fixed to" or "mounted to" another component, it can be directly on the other component or may be interspersed with an intermediate component. When a component is described as "set to" another component, it can be directly set on the other component or may be interspersed with an intermediate component. The term "and / or" as used herein includes all and any combination of one or more of the associated listed items.
[0034] Please see Figure 1 As shown in the illustration, this application provides a material screening system 1000, which can be used in the biological field, such as screening or sorting materials during biochemical reactions, but is not limited thereto, and can also be used for material screening or sorting in other fields. Specifically, in the biological field, the material screening system 1000 can be used in the nucleic acid synthesis process to screen or sort small consumables required for the synthesis reaction, but is not limited thereto.
[0035] Please refer to both together. Figures 2 to 4 As shown, the material screening system 1000 includes a screening device 100 and a pick-and-place device 300. The screening device 100 is used to screen the material 200, and the pick-and-place device 300 is used to transfer the material 200 screened by the screening device 100. The screening device 100 includes a drive assembly 2 and a screening assembly 3 disposed on the drive assembly 2. The drive assembly 2 includes a first drive mechanism 4. The screening assembly 3 includes a screening structure 6 disposed on the first drive mechanism 4 and a screening component 7 located within the screening structure 6. The screening structure 6 has a receiving cavity 61 for accommodating the material 200. The first drive mechanism 4 is configured to drive the screening assembly 3 to rotate and oscillate along a first direction a and a second direction b opposite to the first direction a. Specifically, under the drive of the first drive mechanism 4, the screening structure 6 can tilt along the first direction a or the second direction b, thereby allowing the material 200 to move within the receiving cavity 61. When the material 200 moves within the receiving cavity 61, the screening component 7 is configured to capture the target material 201, thereby achieving screening or sorting of the material 200. After the screening component 7 captures the target material 201, the pick-and-place device 300 removes the target material 201 from the screening component 7 and transfers it to the desired location.
[0036] The screening device 100 also includes a base 1, on which the drive assembly 2 is mounted. The base 1 can be an independent support, allowing the screening device 100 to be moved for independent use. It is understood that the screening device 100 may also exclude the base 1. The base 1 can be an operating table in the material screening system 1000, allowing the screening device 100 to be integrated with other components of the material screening system 1000.
[0037] Please refer to both together. Figure 5 and Figure 6 As shown, the first driving mechanism 4 includes a first driving member 41, a driving rod 42 connected to the first driving member 41, a mounting plate 43 connected to the driving rod 42, a swing shaft seat 47 disposed on one side of the first driving member 41, and an inclined swing shaft 44 rotatably disposed on the swing shaft seat 47. The mounting plate 43 is disposed on the inclined swing shaft 44, and the screening assembly 3 is disposed on the mounting plate 43. The two ends of the driving rod 42 are respectively connected to the first driving member 41 and the mounting plate 43. The first driving member 41 is configured to drive the driving rod 42, thereby causing the mounting plate 43 and the inclined swing shaft 44 to rotate along the first direction a (defined as forward) and the second direction b (defined as reverse), so as to drive the screening assembly 3 to rotate and swing along the first direction a and the second direction b. Specifically, the first driving member 41 and the swing shaft seat 47 can be disposed on the base 1.
[0038] Specifically, driven by the first driving member 41, the linear motion of the first driving member 41 is converted into the rotational motion of the driving rod 42, which further drives the mounting plate 43 and the tilting shaft 44 to rotate and swing, so that the screening structure 6 can tilt and swing in both directions, allowing the material 200 located in the receiving cavity 61 to move within the receiving cavity 61 by its own gravity. During the movement, the material 200 passes through the screening component 7, and the target material 201 will be captured by the screening component 7. Other materials 200 that are not captured will move to one end of the receiving cavity 61 during the tilting process of the screening structure 6, thereby separating from the target material 201 and achieving the purpose of screening or sorting. In addition, the rotation angle and rotation speed of the driving rod 42 can be controlled by the first driving member 41 to make the tilting and rotation of the screening structure 6 controllable. The controllability of the action is stronger, and the material 200 can slide down slowly. The relative movement between the material 200 and the screening structure 6 is gentler, effectively reducing the wear between the screening structure 6 and the material 200.
[0039] The first driving component 41 includes a fixed base 411 mounted on the base 1, a drive motor 412 mounted on the fixed base 411, an output shaft 413 located at the output end of the drive motor 412, and a slider 414 slidably mounted on the output shaft 413. One end of the drive rod 42 is rotatably connected to the slider 414 via a first rotating shaft 45, and the other end of the drive rod 42 away from the first rotating shaft 45 is rotatably connected to the mounting plate 43 via a second rotating shaft 46. The plane of rotation of the drive rod 42 is approximately parallel to the plane of rotation of the tilting shaft 44. The mounting plate 43 is located on one side of the second rotating shaft 46 and is arranged side by side with the drive rod 42. When the drive motor 412 is started, the slider 414 can move linearly along the output shaft 413, driving the drive rod 42 to rotate in both directions, and further driving the mounting plate 43 and the tilting shaft 44 to rotate and swing in both directions. The first driving mechanism 4 in this embodiment has a simple and compact structure, requires little movement space, and has a compact layout, which is beneficial for reducing the size of the screening device 100. In addition, the first driving member 41 pushes the driving rod 42 to rotate, thereby driving the mounting plate 43 and the tilting shaft 44 to rotate and swing, thus realizing the rotation and swing of the screening component 3 located on the mounting plate 43. The operation is simple, and the linear motion is converted into rotation and swing, which can better control the rotation angle and rotation speed, and improve the controllability of the reciprocating tilting motion of the screening component 3.
[0040] In some embodiments, the first drive unit 41 may be a linear motor module.
[0041] Understandably, in other embodiments, the first drive unit 41 can also enable other motor modules, such as a rotary motor module, to directly connect the first drive unit 41 to the tilting swing shaft 44, drive the tilting swing shaft 44 to rotate, thereby driving the mounting plate 43 to rotate, and realize the rotation and swing of the screening component 3.
[0042] Please refer to it again. Figure 3 and Figure 5 As shown, the drive assembly 2 also includes a second drive mechanism 5 disposed on the first drive mechanism 4, and the screening assembly 3 is disposed on the second drive mechanism 5. The second drive mechanism 5 is configured to drive the screening assembly 3 to vibrate. The first drive mechanism 4 can drive the second drive mechanism 5 to rotate along the first direction a and the second direction b, thereby driving the screening assembly 3 to rotate and oscillate. At the same time, the second drive mechanism 5 can also drive the screening assembly 3 to vibrate, which can further improve the efficiency of the target material 201 being captured by the screening component 7.
[0043] In some embodiments, the vibration of the second drive mechanism 5 can be a low-frequency reciprocating vibration, which can improve screening efficiency while achieving a relatively gentle relative movement between the material 200 and the screening component 3, effectively reducing damage to the material 200 during the screening process.
[0044] In some embodiments, the second driving mechanism 5 may include a second driving member 51 and a screening mounting plate 52. The second driving member 51 is disposed on the first driving mechanism 4. Specifically, the second driving member 51 is disposed on the mounting plate 43, and the screening component 3 is disposed on the screening mounting plate 52.
[0045] In some embodiments, the second drive element 51 may be a voice coil motor, capable of providing effective low-frequency vibration to achieve small-stroke movement, thereby improving screening efficiency and further mitigating the relative movement between the material 200 and the screening structure 6, reducing damage to the material 200 during the screening process. It is understood that in other embodiments, the second drive element 51 may also use a mechanism capable of low-frequency reciprocating vibration, such as a cam combined with a linear motor module.
[0046] Please refer to both together. Figures 7 to 9 As shown, the volume of the receiving cavity 61 of the screening structure 6 can be set according to actual needs to achieve the screening of batch materials 200. Specifically, the screening structure 6 can be a rectangular tray, and the receiving cavity 61 includes a first end 62 and a second end 63 arranged opposite to each other, and a screening area 66 located between the first end 62 and the second end 63. The screening component 7 is located in the screening area 66. The first end 62, the screening area 66 and the second end 63 are arranged along the rotation direction of the screening structure 6 (e.g., the first direction a or the second direction b), so that the material 200 can move between the first end 62, the screening area 66 and the second end 63 during the tilting and swinging process of the screening structure 6. For example, when the screening structure 6 rotates and swings along the first direction a (i.e., forward), the material 200 can move from the first end 62 to the second end 63 via the screening area 66. During the movement, the screening component 7 located in the screening area 66 will capture the target material 201, and the same applies in the reverse direction. In this way, through the reciprocating tilting and swinging in the forward and reverse directions, the batch screening or sorting of the material 200 can be achieved.
[0047] The screening structure 6 includes a bottom 64 and sidewalls 65 surrounding the bottom 64, the sidewalls 65 and the bottom 64 forming a receiving cavity 61. The size of the screening structure 6 can be adjusted according to actual needs to achieve batch screening of materials 200 and improve screening efficiency. In some embodiments, the screening structure 6 can be made of wear-resistant plastic, which can further reduce collision wear between the screening structure 6 and the materials 200, making the screening process more material-friendly.
[0048] The first end 62 and the second end 63 can be selected as the feeding area and the discharging area according to actual needs. In this embodiment, the first end 62 is the feeding area and the second end 63 is the discharging area. In some embodiments, the two sidewalls 65 connecting the first end 62 and the screening area 66 can be configured as inclined sidewalls 68, so that the opening connecting the first end 62 and the screening area 66 is smaller than the opening of the first end 62 away from the screening area 66, forming a funnel-like shape, so that the material 200 can enter the screening area 66 from the first end 62.
[0049] Please refer to the reference again. Figures 7 to 9 As shown, the screening component 7 includes multiple screening slots 71, the openings of which communicate with the receiving cavity 61. When the material 200 moves within the receiving cavity 61, the screening slots 71 are configured to capture the target material 201. In some embodiments, the multiple screening slots 71 are centrally located in the screening area 66 between the first end 62 and the second end 63. The screening slots 71 communicate with the receiving cavity 61, and when the material 200 moves between the first end 62 and the second end 63, the screening slots 71 are configured to capture the target material 201. Specifically, during the tilting and swinging process of the screening structure 6, the material 200 moves under its own weight. When it passes through the screening slot 71, the target material 201 that matches the size of the screening slot 71 will fall into the screening slot 71, while other materials 200 will move to the first end 62 or the second end 63, thereby achieving the screening of the material 200.
[0050] In some embodiments, the opening of the screening groove 71 is approximately flush with or lower than the bottom surface of the receiving cavity 61, facilitating the entry of the target material 201 into the screening groove 71. It is understood that during the tilting and oscillating combined with vibration of the screening structure 6, the opening of the screening groove 71 may also be slightly higher than the bottom surface of the receiving cavity 61 without affecting the entry of the target material 201 into the screening groove 71.
[0051] In some embodiments, the screening component 7 further includes a ramp 72 located around each screening groove 71 and connected to the opening of the screening groove 71. The ramp 72 is inclined towards the screening groove 71 from one end near the bottom surface of the receiving cavity 61. That is, the surface around the screening groove 71 is inclined relative to the plane containing the bottom surface of the receiving cavity 61. The ramp 72 has a guiding function, facilitating the entry of the target material 201 into the screening groove 71 and further improving the screening efficiency. Specifically, the opening of the screening groove 71 is lower than the bottom surface of the receiving cavity 61, and the ramp 72 forms an approximately acute angle with the plane containing the bottom surface. This allows the target material 201 located on the bottom surface to enter the screening groove 71 more easily under the guiding effect of the ramp 72, thereby further improving the screening efficiency. In some embodiments, the ramp 72 around the screening groove 71 can be a curved surface that is concave towards the side away from the receiving cavity 61.
[0052] In some embodiments, multiple screening slots 71 can be arranged in an array to screen batches of target materials 201, improve screening efficiency, and facilitate the transfer of target materials 201 by the pick-and-place device 300.
[0053] The screening component 7 and the screening structure 6 can be an integral structure. Specifically, the screening groove 71 can be directly formed on the bottom 64 of the screening structure 6. The bottom 64 includes a first surface 641 and a second surface 642 arranged opposite to each other. The first surface 641 forms the bottom surface of the receiving cavity 61. The first surface 641 located between the first end 62 and the second end 63 is recessed towards the second surface 642 to form multiple concave areas 643 arranged side by side. Multiple screening grooves 71 are formed on each concave area 643. The opening of the screening groove 71 is located on the concave area 643, and the concave area 643 forms a inclined surface 72 with a guiding function around the screening groove 71.
[0054] In some embodiments, the aperture and shape of the screening groove 71 can be designed according to actual needs. At least one of the aperture and shape of all screening grooves 71 can be designed to be different, thereby achieving simultaneous screening of different target materials 201. For example, multiple screening grooves 71 can be configured with different apertures to achieve screening of materials with different sizes. As another example, multiple screening grooves 71 can also be configured with different shapes (such as circular grooves, rectangular grooves, etc.), with each shape screening one shape of material.
[0055] In some embodiments, the aperture of the screening channel 71 is slightly larger than that of the target material 201 in order to capture the passing target material 201.
[0056] In other embodiments, such as Figure 10 and Figure 11 As shown, please refer to the following: Figure 3 Along the direction of material 200 movement, the depth of the same screening tank 71 is inconsistent; that is, a single screening tank 71 has a different depth along the direction of material 200 movement. For example, for a single screening tank 71, the tank depth L1 near the first end 62 (feed end) is greater than the thickness L of the material 200, and the tank depth L2 near the second end 63 (discharge side) is smaller than the thickness L of the material 200. In this way, when the screening structure 6 tilts and swings along the first direction a (i.e., forward), it will not obstruct the material 200 from continuing to flow towards the second end 63. When it is necessary to reverse the operation of the screening structure 6 (i.e., drive the screening structure 6 to tilt and swing along the second direction b), the problem of the material 200 being blocked can be avoided by increasing the tilt angle of the rotation of the screening structure 6, so that the material 200 can smoothly return to the feed end.
[0057] Understandably, in other embodiments, the screening component can also be detachably configured with the screening structure, with a locking slot at the bottom of the screening structure to allow the screening component to be inserted into the corresponding slot. The screening component can be a one-piece molded structure, including multiple screening slots arranged in an array. The surface around the screening slots is inclined. The structure of the screening slots and inclined surfaces in this embodiment is basically the same as that of the screening slot 71 and inclined surface 72 in the previous embodiments, and will not be described in detail here. By providing a detachable screening component, screening components of various specifications can be replaced to achieve the screening of materials of various specifications.
[0058] Please refer to it again. Figure 2 As shown, the pick-and-place device 300 includes a fixed plate 301 and a plurality of suction heads 302 on the fixed plate 301. The suction heads 302 are configured to pick up the target material 201 captured by the screening component 7 and transfer the target material 201 to a specific position to achieve the purpose of material screening or sorting. The suction heads 302 on the fixed plate 301 are arranged in the same way as the screening tank 71 to facilitate the picking up of the target material 201 located in the screening tank 71.
[0059] In some embodiments, the suction heads 302 on the fixed plate 301 can be designed according to actual needs. When multiple screening tanks 71 within the screening structure 6 are arranged in an array, a row of suction heads 302 can be provided on the fixed plate 301, which can pick up one row of the array of screening tanks 71 at a time. Multiple rows of suction heads 302 can also be provided on the fixed plate 301, which can pick up multiple rows of the array of screening tanks 71 at a time. Alternatively, the suction heads 302 can be configured in the same array form as the array of screening tanks 71, allowing the target material 201 in the array of screening tanks 71 to be picked up at once, improving transfer efficiency.
[0060] In some embodiments, the suction head 302 can be connected to a vacuum device (not shown) to pick up and transfer the target material 201 using vacuum adsorption. It is understood that in other embodiments, the pick-and-place device 300 can also employ other pick-and-place modes, such as clamping or magnetic attraction.
[0061] Please refer to it again. Figure 1 As shown, the material screening system 1000 also includes an identification device 400, which is configured to identify the target material 201 captured by the screening component 7. When the screening device 100 separates the target material 201 from the material 200 during tilting, swinging, and vibration, the target material 201 is located in the screening groove 71 of the screening component 7. At this time, by identifying the target material 201 in the screening groove 71 through the identification device 400, the batch orderly screening and identification of the material 200 can be realized. After identification, the pick-and-place device 300 is activated to transfer the target material 201 in the screening groove 71 away.
[0062] The material sorting system 1000 also includes a control device 500, which can be signal-connected to the sorting device 100, the pick-and-place device 300, and the identification device 400 to control the coordinated operation of the sorting device 100, the pick-and-place device 300, and the identification device 400. It is understood that the sorting device 100 may also be independently controlled without being signal-connected to the control device 500.
[0063] Please see Figures 1 to 3 Please refer to both together. Figures 12 to 15 The aforementioned screening device 100 will be further described below through specific embodiments. The screening component 7 of the screening device 100 is an array disk with 400 screening slots 71. The material 200 has a size of 2mm*2mm, and the diameter of the screening slots 71 designed for this material size is approximately Φ3.2mm. In actual testing, when screening 600-1000 pieces of material 200, the filling rate of the 400 screening slots 71 in one operation is basically stable at around 95%, with a minimum filling rate exceeding 90%. When there are fewer than 200 pieces of material 200, almost all of the material 200 can enter the screening slots 71 in one screening operation. Therefore, the screening device 100 has very high screening efficiency and high application value.
[0064] Specifically, when screening material 200 using the material screening system 1000 including the aforementioned screening device 100, the following steps are included: Step 1, as follows Figure 3 and Figure 12 As shown, in the initial stage: the screening structure 6 is in a horizontal state, and the first drive mechanism 4 and the second drive mechanism 5 are not started; then, material 200 is poured into the first end 62 (feed end) of the screening structure 6, and the feeding stops after the material 200 reaches a certain amount.
[0065] Step 2, as follows Figure 3 and Figure 13 As shown, during the screening stage: the second drive mechanism 5 is activated to drive the screening structure 6 to vibrate, and the material 200 will also vibrate within the screening structure 6. At the same time, the first drive mechanism 4 is activated to drive the screening structure 6 to slowly tilt and swing along the first direction a (i.e., the forward direction). The material 200 slowly slides down towards the second end 63 (discharge end) in the tilted state. At this time, the target material 201 is captured by the screening trough 71, and the excess material 200 slides down to the second end 63 for temporary storage. When the screening structure 6 reaches the maximum set tilt angle, the screening is completed, and the first drive mechanism 4 and the second drive mechanism 5 are stopped.
[0066] Step 3, as follows Figure 1 , Figure 2 and Figure 14As shown, during the sorting stage: the first drive mechanism 4 is activated to drive the screening structure 6 to rotate in the second direction b (i.e., in the opposite direction), so that the screening structure 6 slowly returns to a horizontal state. This process does not require the activation of the second drive mechanism 5. The identification device 400 identifies the target material 201 in the screening tank 71 and controls the pick-and-place device 300 to remove the target material 201 and sort it by type.
[0067] Step 4, as follows Figure 2 and Figure 15 As shown, after sorting is completed, the first drive mechanism 4 is activated to drive the screening structure 6 to continue rotating in the second direction b (reverse direction). Simultaneously, the second drive mechanism 5 is activated to drive the screening structure 6 to vibrate, causing the unsorted material 200 to return from the second end 63 to the first end 62. When the screening structure 6 reaches the set maximum tilt angle, the first drive mechanism 4 and the second drive mechanism 5 are stopped. During this process, the target material 201 can be captured again by the screening tank 71, achieving material screening in both directions and further improving screening efficiency. It is understandable that screening of the material 200 may not be necessary during this process; the main purpose is to allow the uncaptured material 200 to return to the first end 62.
[0068] Step 5: Restart the first drive mechanism 4 to rotate in the first direction a (i.e., forward) so that the screening structure 6 slowly returns to the horizontal state.
[0069] Repeat steps 1 to 5 or steps 2 to 5 above to achieve the purpose of cyclic screening or sorting. The screening device 100 of this application is provided with a screening trough 71 in the screening structure 6. By tilting, swinging and vibrating the screening structure 6, the target material 201 can be quickly put into the screening trough 71, providing sufficient and reliable conditions for the batch grasping at the back end. Moreover, the efficiency can be further improved by increasing the area of the screening structure 6 and increasing the number of suction heads 302 of the pick-and-place device 300.
[0070] The screening device 100 in the material screening system 1000 provided in this application embodiment drives the screening component 3 to rotate along the first direction a and the second direction b through the first driving mechanism 4 in the driving component 2. The screening structure 6 tilts and swings, thereby causing the material 200 in the screening structure 6 to move within the receiving cavity 61 and be captured by the screening component 7 located within the screening structure 6. This enables rapid batch screening of the target material 201, effectively improving the efficiency of screening or sorting. By increasing the number of screening slots 71 in the screening component 7, the efficiency can be quickly doubled or more. The tilting and swinging of the screening structure 6 allows the screening component 7 to fully capture the target material 201. The screening operation is simple and convenient, with high efficiency. Furthermore, the tilting and rotating motion of the screening structure 6 is controllable, reducing wear between the screening structure 6 and the material 200. By adding a second driving mechanism 5, vibration of the screening structure 6 can be achieved, further improving the screening efficiency of the material 200. At the same time, the vibration of the second driving mechanism 5 can be low-frequency vibration, which can effectively reduce wear and damage to the material 200 during the screening process, making the screening process more material-friendly.
[0071] In addition, the screening device 100 has a compact structure and only requires a few simple actions to achieve the screening process. Through clever design, the screening slots 71 in the screening component 7 can be nearly 100% filled. It is easy to operate and maintain, and can be easily integrated into the material screening system 1000 or used independently, making its application scenarios more flexible.
[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.
Claims
1. A screening device, characterized in that, Used for material screening, including: The drive components include a first drive mechanism; and A screening assembly, disposed on the first driving mechanism, includes a screening structure and screening components located within the screening structure. The screening structure has a receiving cavity for accommodating the material. The first driving mechanism is configured to drive the screening component to rotate and oscillate along a first direction and a second direction opposite to the first direction, so as to move the material within the receiving cavity, and the screening component is configured to capture the target material when the material moves within the receiving cavity.
2. The screening device as described in claim 1, characterized in that, The screening component includes a plurality of screening slots, the openings of which communicate with the receiving cavity. When the material moves within the receiving cavity, the screening slots are configured to capture the target material.
3. The screening device as described in claim 2, characterized in that, The screening component also includes an inclined surface located around the screening groove and connected to the opening of the screening groove, the inclined surface being inclined toward the screening groove from one end near the bottom surface of the receiving cavity.
4. The screening device as described in claim 2, characterized in that, The depth of the same screening tank is inconsistent along the direction of material movement.
5. The screening device as described in claim 2, characterized in that, The plurality of the screening cells are arranged in an array; and / or The aperture and / or shape of the multiple screening slots are different.
6. The screening device as described in claim 1, characterized in that, The first driving mechanism includes a first driving member, a driving rod connected to the first driving member, a mounting plate connected to the driving rod, a swing shaft seat disposed on one side of the first driving member, and an inclined swing shaft rotatably connected to the swing shaft seat. The mounting plate is disposed on the inclined swing shaft, and the screening assembly is disposed on the mounting plate. The first driving member is configured to drive the driving rod, thereby causing the mounting plate and the inclined swing shaft to rotate along the first direction and the second direction, so as to cause the screening assembly to rotate and swing along the first direction and the second direction.
7. The screening device as described in claim 1, characterized in that, The drive assembly further includes a second drive mechanism rotatably connected to the first drive mechanism, the screening component is disposed on the second drive mechanism, and the second drive mechanism is configured to drive the screening component to vibrate.
8. The screening device as described in claim 7, characterized in that, The second driving mechanism includes a second driving member disposed on the first driving mechanism and a screening mounting plate disposed on the second driving member, wherein the screening component is disposed on the screening mounting plate.
9. A material screening system, characterized in that, It includes a screening device and a pick-and-place device, wherein the screening device is the screening device as described in any one of claims 1 to 8, and the pick-and-place device is configured to transfer the target material captured by the screening component.
10. The material screening system as described in claim 9, characterized in that, The pick-and-place device includes a fixed plate and a plurality of suction heads located on the fixed plate, the suction heads being configured to pick up the target material captured by the screening component.
11. The material screening system as described in claim 9, characterized in that, It also includes an identification device configured to identify the target material captured by the screening component.