A suction mechanism and a feeding device
By designing the suction mechanism and the vibration generator in combination, the problem of multiple cells being removed during stacking of current collectors is solved, enabling only one current collector to be picked up at a time, thus improving the feeding efficiency of battery production and protecting the current collectors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LEAD INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-12
AI Technical Summary
During battery production, current collectors can easily stick together due to static electricity or other reasons when stacked, leading to the risk of picking up two or more cells at once. Existing technology cannot ensure that only one current collector is picked up each time.
A suction mechanism is designed, including a connecting seat, first and second suction components, and a vibration generator. The first and second suction parts jointly suction the collector plate, and the vibration generator is used to make the second suction component and the collector plate vibrate during suction to ensure that only one collector plate is suctioned at a time.
It effectively reduces the risk of multiple collector plates being sucked up at the same time, improves the feeding efficiency and accuracy of the collector plates, and avoids hard impact damage to the collector plates.
Smart Images
Figure CN224349878U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery manufacturing equipment technology, specifically to a suction mechanism and a feeding device. Background Technology
[0002] In battery manufacturing, such as for cylindrical batteries, current collectors need to be welded into the battery's steel casing. Current collectors are typically supplied in stacks of several, requiring individual pickup and loading onto a welding device for assembly. However, because stacked current collectors may adhere together due to static electricity or other reasons, it's easy to accidentally pick up two or more current collectors at once when picking up the upper layer. Utility Model Content
[0003] Therefore, it is necessary to provide a suction mechanism and feeding device that can ensure that only one collector plate is picked up at a time to address the above problems.
[0004] An absorption mechanism, comprising:
[0005] Connector;
[0006] A first suction component is disposed on the connecting seat, and one end of the first suction component has a first adsorption portion;
[0007] A second suction component is movably mounted on the connecting seat, and one end of the second suction component has a second adsorption portion; and
[0008] A vibration generator is mounted on the second suction assembly.
[0009] In some embodiments, the suction mechanism further includes a fixed base and a first elastic member, wherein the first suction component is movably connected to the fixed base and fixedly connected to the connecting base, and the first elastic member abuts between the fixed base and the connecting base.
[0010] In some embodiments, the first suction assembly includes a first sleeve, the fixed base has a first guide hole, the first sleeve passes through the first guide hole, the connecting base is fixedly connected to the first sleeve, and the first elastic element is sleeved on the first sleeve.
[0011] The first sleeve is located at the end of the connecting seat away from the fixed seat, which is the first end, and the first adsorption part is installed at the first end.
[0012] In some embodiments, the first sleeve has a first air passage communicating with the first adsorption part, the first air passage being used to communicate with an external negative pressure source.
[0013] In some embodiments, the fixing seat has a second guide hole, and the first guide hole and the second guide hole are axially aligned; the first suction assembly further includes a guide seat and a guide rod, the guide seat is fixedly connected to the first sleeve, and the guide rod is fixedly connected to the guide seat and passes through the second guide hole.
[0014] In some embodiments, the second suction assembly includes a second sleeve, the connecting seat has a third guide hole, the second sleeve passes through the third guide hole, and the vibration generator is mounted on the second sleeve;
[0015] The second sleeve has a third end, which is located on the same side of the connecting seat as the first adsorption part, and the second adsorption part is installed on the third end.
[0016] In some embodiments, the second suction assembly further includes a locking member and a second elastic member, the locking member being connected to the second sleeve and located on the side of the connecting seat opposite to the second suction portion, and the second elastic member abutting between the locking member and the connecting seat.
[0017] In some embodiments, the locking element is sleeved on the outside of the second sleeve and threadedly connected to the second sleeve.
[0018] In some embodiments, the second suction component further includes a second adapter block and a guide block, the second adapter block being connected to the third end of the second sleeve, and the second suction portion being mounted on the second adapter block;
[0019] The guide block is connected to the connecting seat and has a guide groove, and the second adapter block slides in conjunction with the guide groove.
[0020] In some embodiments, the second sleeve has a third air passage for communicating with an external negative pressure source, and the second adapter block has a fourth air passage connecting the third air passage and the second adsorption part.
[0021] A feeding device includes a turntable and a suction unit mounted on the turntable, the suction unit including the suction mechanism as described in any of the above embodiments.
[0022] In some embodiments, the feeding device further includes a transfer unit, a material carrying mechanism, a positioning mechanism, and a feeding conveyor line;
[0023] The transfer unit is mounted on the turntable, and the material carrying mechanism, the positioning mechanism, and the unloading conveyor line are arranged around the circumference of the turntable. The turntable can drive the suction unit to rotate between the material carrying mechanism and the positioning mechanism, and drive the transfer unit to rotate between the positioning mechanism and the unloading conveyor line.
[0024] When the first and second adsorption sections jointly adsorb the uppermost collecting plate, the vibration generator generates vibration, thereby driving the second adsorption component and the uppermost collecting plate to vibrate, causing the uppermost collecting plate to separate from the collecting plate of the next layer. This ensures that the first and second adsorption sections adsorb only one collecting plate at a time, greatly reducing the risk of taking two (or even more) collecting plates at once. Attached Figure Description
[0025] Figure 1 This is a top view of the feeding device in one embodiment of this application;
[0026] Figure 2 for Figure 1 A schematic diagram of the structure of the feed device's turntable, suction unit, and transfer unit;
[0027] Figure 3 for Figure 2 The diagram shows the structure of the absorption unit.
[0028] Figure 4 for Figure 3 A schematic diagram of the suction mechanism of the suction unit shown;
[0029] Figure 5 for Figure 4 The shown is a cross-sectional view of the suction mechanism. Detailed Implementation
[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0031] In the description of this application, 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", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 this application.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0036] Please see Figures 1 to 3 This application provides a feeding device for providing collector trays to batteries. Of course, in other embodiments, this feeding device can also be used to provide other sheet materials, and is not limited thereto. For ease of understanding, this document describes the feeding device as an example of providing collector trays to batteries. The feeding device includes a turntable 10 and a suction unit 20 and a transfer unit 30 mounted on the turntable 10. The suction unit 20 includes a suction mechanism 20a. The feeding device also includes a material carrying mechanism 40, a positioning mechanism 50, and a feeding conveyor line 60 arranged around the periphery of the turntable 10. During rotation around its own axis, the turntable 10 can drive the suction unit 20 to rotate between the material carrying mechanism 40 and the positioning mechanism 50, and can also drive the transfer unit 30 to transfer between the positioning mechanism 50 and the feeding conveyor line 60. Several collector trays are stacked on the material carrying mechanism 40. The positioning mechanism 50 is used to receive the collector trays and adjust their positions (i.e., position the collector trays). The feeding conveyor line 60 is used to transport cups, each of which contains a battery.
[0037] When the turntable 10 drives the suction unit 20 to above the material carrying mechanism 40, the suction mechanism 20a picks up the uppermost collecting tray on the material carrying mechanism 40. When the turntable 10 drives the suction unit 20 to above the positioning mechanism 50, the suction mechanism 20a releases the picked-up collecting tray onto the positioning mechanism 50, and the positioning mechanism 50 positions the collecting tray. When the turntable 10 drives the transfer unit 30 to above the positioning mechanism 50, the transfer unit 30 picks up the collecting tray on the positioning mechanism 50. When the turntable 10 drives the transfer unit 30 to above the unloading conveyor line 60, the transfer unit 30 releases the picked-up collecting tray onto the battery in the cup being conveyed by the unloading conveyor line 60, thus realizing the loading of the collecting tray onto the battery in the cup.
[0038] Furthermore, there are two suction units 20 and two transfer units 30, both mounted on the turntable 10 and evenly arranged along the circumference of the turntable 10. Two positioning mechanisms 50 are also provided, arranged on opposite sides of the turntable 10 in one radial direction. The material carrying mechanism 40 and the unloading conveyor line 60 are arranged on opposite sides of the turntable 10 in another radial direction. The turntable 10 rotates alternately clockwise and counterclockwise, rotating 90° each time. For example, the turntable 10 rotates in an alternating manner of 90° clockwise, 90° counterclockwise, 90° clockwise, 90° counterclockwise, etc. This causes one of the suction units 20 to switch between the material carrying mechanism 40 and one of the positioning mechanisms 50, and simultaneously causes another suction unit 20 to switch between the material carrying mechanism 40 and another positioning mechanism 50. At the same time, it causes one transfer unit 30 to switch between one positioning mechanism 50 and the unloading conveyor line 60, and simultaneously causes another transfer unit 30 to switch between another positioning mechanism 50 and the unloading conveyor line 60, which greatly improves production efficiency.
[0039] Furthermore, each suction unit 20 includes multiple suction mechanisms 20a, and the material carrying mechanism 40 has multiple carrying positions, each carrying position having several collection trays stacked on it. When the suction unit 20 reaches above the material carrying mechanism 40 along with the turntable 10, each suction mechanism 20a of the suction unit 20 corresponds one-to-one with each carrying position on the material carrying mechanism 40, and each suction mechanism 20a is used to suction one of the uppermost collection trays on the corresponding carrying position. In this way, each time multiple suction mechanisms 20a can be used to suction one collection tray, greatly improving the feeding efficiency of the collection trays.
[0040] Understandably, the positioning mechanism 50 can also simultaneously position multiple collector trays transferred by the suction unit 20, and the transfer unit 30 can also simultaneously pick up multiple collector trays on the positioning mechanism 50 and transfer them one by one to the batteries in the multiple cups conveyed by the unloading conveyor line 60.
[0041] It should also be noted that when the collection tray needs to be picked up, firstly, the turntable 10 rotates until the suction unit 20 reaches above the material carrying mechanism 40. Then, the turntable 10 descends, thereby causing the suction mechanism 20a to descend until it contacts the uppermost collection tray and holds it in place. Next, the turntable 10 raises the suction mechanism 20a back to its original position, causing the uppermost collection tray to rise with the suction mechanism 20a and separate from the next collection tray, thus completing the collection of the collection tray. Of course, this is not limited to using the turntable 10 to raise and lower the suction mechanism 20a; the suction mechanism 20a can also have its own lifting function, as long as it can pick up the uppermost collection tray. For ease of explanation, this article uses the turntable 10 to raise and lower the suction mechanism 20a as an example.
[0042] Please see Figure 4 and Figure 5 In the embodiments of this application, the suction mechanism 20a includes a connecting base 21, a first suction component 22, a second suction component 23, and a vibration generator 24. The first suction component 22 is disposed on the connecting base 21, and one end of the first suction component 22 has a first adsorption portion 221 for suctioning the collector tray. The second suction component 23 is movably disposed on the connecting base 21, and one end of the second suction component 23 has a second adsorption portion 231 for suctioning the collector tray. The first adsorption portion 221 and the second adsorption portion 231 are located on the same side of the connecting base 21 to jointly suction the same collector tray. The vibration generator 24 is mounted on the second suction component 23. Thus, when the first adsorption part 221 and the second adsorption part 231 jointly pick up the uppermost collector plate, the vibration generator 24 generates vibration, thereby driving the second adsorption component 23 and the uppermost collector plate being picked up to vibrate, causing the uppermost collector plate to separate from the collector plate of the next layer, ensuring that the first adsorption part 221 and the second adsorption part 231 pick up only one collector plate at a time, greatly reducing the risk of picking up two (or even more) collector plates at once.
[0043] Optionally, the first adsorption part 221 can be a suction cup, and the second adsorption part 231 can also be a suction cup. Of course, in other embodiments, the first adsorption part 221 and the second adsorption part 231 can also be other vacuum adsorption components, as long as they can achieve the adsorption of the collector plate by vacuum adsorption, and there is no limitation here.
[0044] In some embodiments, the suction mechanism 20a further includes a fixed base 25 and a first elastic member 26. The first suction assembly 22 is movably connected to the fixed base 25 and fixedly connected to the connecting base 21. The fixed base 25 is located on the side of the connecting base 21 opposite to the first suction part 221. The first elastic member 26 abuts between the fixed base 25 and the connecting base 21, providing a spring force that causes the connecting base 21 to have a tendency to move away from the fixed base 25. Thus, when the turntable 10 drives the suction mechanism 20a to descend, causing the first suction part 221 and the second suction part 231 to abut against the uppermost collecting tray, the connecting base 21 overcomes the spring force of the first elastic member 26 and floats upward under the pressure, thereby buffering the impact between the first suction part 221 and the second suction part 231 and the collecting tray, and preventing the first suction part 221 and the second suction part 231 from having a hard impact with the collecting tray and damaging it.
[0045] In a specific embodiment, the first suction assembly 22 includes a first sleeve 222, and a first guide hole 251 is provided on the fixing base 25. The first sleeve 222 passes through the first guide hole 251 and is movable along the axial direction of the first guide hole 251. A connecting base 21 is fixedly connected to the first sleeve 222, and a first elastic member 26 is sleeved on the first sleeve 222, with both ends of the first elastic member 26 abutting against the connecting base 21 and the fixing base 25, respectively. The first sleeve 222 is located at the end of the connecting base 21 away from the fixing base 25 (i.e., Figure 5 The bottom end of the first sleeve 222 shown is designated as end a1, and the first suction part 221 is installed at end a1 of the first sleeve 222. Thus, due to the provision of the first elastic element 26, the connecting seat 21 can cause the first suction part 221 of the first suction assembly 22 and the second suction part 231 of the second suction assembly 23 to float, avoiding hard impact on the collector plate during suction and preventing damage to the collector plate. Optionally, the first elastic element 26 can be a compression spring.
[0046] Furthermore, the suction mechanism 20a also includes a first guide sleeve 27, which is fitted inside the first guide hole 251 and is fixed relative to the fixed base 25. A first sleeve 222 is fitted inside the first guide sleeve 27 and is slidable along the axial direction of the first guide sleeve 27, thereby guiding the floating of the first sleeve 222 by the first guide sleeve 27.
[0047] Furthermore, the first sleeve 222 is located at the end of the fixed base 25 away from the connecting base 21 (i.e. Figure 5The top end of the first sleeve 222 shown is the second end a2. The first sleeve 222 has a first air passage b1, which is connected to the first adsorption part 221. The first air passage b1 passes through the opening formed by the second end a2 and is connected to an external negative pressure source through a pipeline. When it is necessary to adsorb the collector plate, the external negative pressure source evacuates the first adsorption part 221 through the first air passage b1, so that a negative pressure is generated at the first adsorption part 221 to adsorb the collector plate; when it is necessary to release the collector plate, the external negative pressure stops evacuating, so that the negative pressure at the first adsorption part 221 disappears and the adsorption of the collector plate is released.
[0048] Specifically, a first connector 227 is installed in the opening formed by the first airway b1 and the second end a2. The first connector 227 is connected to one end of the pipeline, and the other end of the pipeline is connected to an external negative pressure source.
[0049] Furthermore, the first suction assembly 22 also includes a first adapter block 226. This first adapter block 226 is connected to the second end a2 of the first sleeve 222, and the first adsorption part 221 is connected to this first adapter block 226. The first adapter block 226 has a second air passage b2 connecting the first air passage b1 and the first adsorption part 221. Thus, the arrangement of the first adapter block 226 facilitates the assembly and disassembly of the first adsorption part 221.
[0050] Furthermore, a second guide hole 252 is provided on the fixed base 25, which is axially aligned with the first guide hole 251. The first suction assembly 22 also includes a guide seat 224 and a guide rod 225. The guide seat 224 is fixedly connected to the first sleeve 222. The guide rod 225 is fixedly connected to the guide seat 224 and passes through the second guide hole 252, so that when the first sleeve 222 floats up and down, it can drive the guide rod 225 to move along the second guide hole 252, that is, the guide rod 225 is used to guide the up and down floating of the first sleeve 222. It should be noted that the guide seat 224 serves two purposes: firstly, it serves to install the guide rod 225; secondly, when the first sleeve 222 descends to its lowest point, the guide seat 224 abuts against the first guide sleeve 27, that is, the guide seat 224 also serves as a limiting function to prevent the first sleeve 222 from falling out of the first guide sleeve 27.
[0051] In an embodiment of this application, the second suction assembly 23 includes a second sleeve 232. A third guide hole 211 is provided on the connecting seat 21, and the third guide hole 211 is axially aligned with the first guide hole 251 and the second guide hole 252. The second sleeve 232 passes through the third guide hole 211 on the connecting seat 21, and the second sleeve 232 is movable along the axial direction of the third guide hole 211. A vibration generator 24 is mounted on the second sleeve 232. One end of the second sleeve 232 is a third end a3, which is located on the same side of the connecting seat 21 as the first suction part 221. Specifically... Figure 5 In the illustrated embodiment, the bottom end of the second sleeve 232 is the third end a3. The second adsorption part 231 is installed on the third end a3 of the second sleeve 232, such that the second adsorption part 231 and the first adsorption part 221 are located on the same side of the connecting seat 21, so that the first adsorption part 221 and the second adsorption part 231 can jointly adsorb the same collector plate.
[0052] Thus, after the first adsorption part 221 and the second adsorption part 231 adsorb the uppermost collector plate, the vibration generator 24 is activated to generate vibration, thereby causing the second sleeve 232 and the second adsorption part 231 on the second sleeve 232 to vibrate up and down relative to the connecting seat 21, ensuring that the uppermost collector plate, which is jointly adsorbed and fixed by the first adsorption part 221 and the second adsorption part 231, is separated from the next layer of collector plate.
[0053] In a specific embodiment, the second suction assembly 23 further includes a locking member 233 and a second elastic member 234. The locking member 233 is connected to the second sleeve 232 and is located on the side of the connecting seat 21 opposite to the second suction part 231. The second elastic member 234 abuts against the locking member 233 and the connecting seat 21, so that the second sleeve 232 and the connecting seat 21 are elastically connected, which plays a vibration isolation role, that is, prevents the vibration of the second sleeve 232 from being transmitted to the first suction assembly 22 through the connecting seat 21.
[0054] Furthermore, the locking member 233 is threadedly connected to the second sleeve 232. By turning the locking member 233, the second sleeve 232 can be raised or lowered, that is, the position of the second sleeve 232 can be adjusted, thereby adjusting the position of the second adsorption part 231, ensuring that the first adsorption part 221 and the second adsorption part 231 are at the same height, thereby ensuring that the first adsorption part 221 and the second adsorption part 231 can more stably and reliably adsorb and fix the same collector plate.
[0055] Optionally, the locking element 233 can be an annular threaded sleeve, fitted onto the outside of the second sleeve 232 and threadedly connected to the second sleeve 232. The second elastic element 234 can be an annular elastic pad, fitted onto the outside of the second sleeve 232. The material of the second elastic element 234 can be rubber or other elastic materials, which is not limited here.
[0056] In a specific embodiment, the second suction assembly 23 further includes a second adapter block 235 and a guide block 236. The second adapter block 235 is connected to the third end a3 of the second sleeve 232, and the second suction part 231 is mounted on the second adapter block 235. The guide block 236 is connected to the connecting seat 21 and has a guide groove 2361. The second adapter block 235 and the guide groove 2361 on the guide block 236 slide in cooperation, thereby using the guide groove 2361 to guide the second adapter block 235 to follow the up-and-down vibration movement of the second sleeve 232, and to prevent the second suction part 231 from vibrating in the horizontal direction.
[0057] Furthermore, the other end of the second sleeve 232 that is opposite to the third end a3 (i.e., as shown) Figure 5 The top end of the second sleeve 232 shown is the fourth end a4. The second sleeve 232 has a third air passage b3. The second adapter block 235 has a fourth air passage b4 that connects the third air passage b3 and the second adsorption part 231. The opening formed by the third air passage b3 and the fourth end a4 is connected to an external negative pressure source through a pipeline, so that when the adsorption of the collector plate is required, the external negative pressure source evacuates the second adsorption part 231 through the third air passage b3 and the fourth air passage b4, so that a negative pressure is generated at the second adsorption part 231 to adsorb the collector plate; when the collector plate needs to be released, the external negative pressure stops evacuating, so that the negative pressure at the second adsorption part 231 disappears and the adsorption of the collector plate is released.
[0058] Optionally, a second connector 237 is installed in the opening formed by the third airway b3 and the fourth end a4. One end of the pipeline is connected to the second connector 237, and the other end of the pipeline is connected to an external negative pressure source.
[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A suction mechanism, characterized in that, include: Connector (21); A first suction component (22) is disposed on the connecting seat (21), and one end of the first suction component (22) has a first adsorption part (221); A second suction component (23) is movably disposed on the connecting seat (21), and one end of the second suction component (23) has a second suction portion (231); and A vibration generator (24) is mounted on the second suction assembly (23).
2. The suction mechanism according to claim 1, characterized in that, The suction mechanism (20a) further includes a fixed base (25) and a first elastic element (26). The first suction component (22) is movably connected to the fixed base (25) and fixedly connected to the connecting base (21). The first elastic element (26) abuts between the fixed base (25) and the connecting base (21).
3. The suction mechanism according to claim 2, characterized in that, The first suction assembly (22) includes a first sleeve (222), a first guide hole (251) is provided on the fixed base (25), the first sleeve (222) passes through the first guide hole (251), the connecting base (21) is fixedly connected to the first sleeve (222), and the first elastic element (26) is sleeved on the first sleeve (222); The first sleeve (222) is located at the end of the connecting seat (21) away from the fixed seat (25) as the first end (a1), and the first adsorption part (221) is installed at the first end (a1).
4. The suction mechanism according to claim 3, characterized in that, The first sleeve (222) has a first air passage (b1) communicating with the first adsorption part (221), and the first air passage (b1) is used to communicate with an external negative pressure source.
5. The suction mechanism according to claim 3, characterized in that, The fixed base (25) has a second guide hole (252), and the first guide hole (251) and the second guide hole (252) are aligned axially; the first suction assembly (22) also includes a guide seat (224) and a guide rod (225), the guide seat (224) is fixedly connected to the first sleeve (222), and the guide rod (225) is fixedly connected to the guide seat (224) and passes through the second guide hole (252).
6. The suction mechanism according to claim 1, characterized in that, The second suction assembly (23) includes a second sleeve (232), a third guide hole (211) is provided on the connecting seat (21), the second sleeve (232) passes through the third guide hole (211), and the vibration generator (24) is mounted on the second sleeve (232); The second sleeve (232) has a third end (a3), which is located on the same side of the connecting seat (21) as the first adsorption part (221), and the second adsorption part (231) is installed on the third end (a3).
7. The suction mechanism according to claim 6, characterized in that, The second suction assembly (23) further includes a locking member (233) and a second elastic member (234). The locking member (233) is connected to the second sleeve (232) and is located on the side of the connecting seat (21) away from the second suction part (231). The second elastic member (234) abuts between the locking member (233) and the connecting seat (21).
8. The suction mechanism according to claim 7, characterized in that, The locking member (233) is sleeved on the outside of the second sleeve (232) and threadedly connected to the second sleeve (232).
9. The suction mechanism according to claim 6, characterized in that, The second suction assembly (23) further includes a second adapter block (235) and a guide block (236). The second adapter block (235) is connected to the third end (a3) of the second sleeve (232), and the second suction part (231) is mounted on the second adapter block (235). The guide block (236) is connected to the connecting seat (21) and has a guide groove (2361), and the second adapter block (235) slides in cooperation with the guide groove (2361).
10. The suction mechanism according to claim 9, characterized in that, The second sleeve (232) has a third air passage (b3) for communicating with an external negative pressure source, and the second adapter block (235) has a fourth air passage (b4) for communicating with the third air passage (b3) and the second adsorption part (231).
11. A feeding device, characterized in that, It includes a turntable (10) and a suction unit (20) mounted on the turntable (10), the suction unit (20) including the suction mechanism (20a) as described in any one of claims 1 to 10.
12. The feeding device according to claim 11, characterized in that, The feeding device also includes a transfer unit (30), a material carrying mechanism (40), a positioning mechanism (50), and a feeding conveyor line (60); The transfer unit (30) is mounted on the turntable (10). The material carrying mechanism (40), the positioning mechanism (50), and the unloading conveyor line (60) are arranged around the circumference of the turntable (10). The turntable (10) can drive the suction unit (20) to rotate between the material carrying mechanism (40) and the positioning mechanism (50), and drive the transfer unit (30) to rotate between the positioning mechanism (50) and the unloading conveyor line (60).