Adsorption assembly and transfer device

Abstract

The application relates to the technical field of automation equipment, aims to solve the technical problem of yield reduction in product transfer, and provides an adsorption assembly and a transfer device. The adsorption assembly comprises a main body, a sealing element and an elastic element. The main body is provided with an airflow channel and a through hole. One end of the through hole is connected with the airflow channel through a communication port, and the other end penetrates through to the outer surface of the main body. The sealing element is movably arranged in the through hole, the projection of the sealing element along the axial direction of the through hole covers the communication port, and the sealing element has a sealing position and an open position. The elastic element abuts between the sealing element and the main body, and the elastic element is used for applying an elastic force to the sealing element in the direction away from the communication port. The force applied to the sealing element by the air pressure difference between the airflow channel and the through hole is F1; when the sealing element is in the sealing position, the elastic force applied to the sealing element by the elastic element is F2, and F1 >= F2; and when the sealing element is in the open position, F1 < F2. The application has the beneficial effect of improving the transfer yield of products.

Description

Technical Field

[0001] This application relates to the field of automated equipment technology, and more specifically, to adsorption components and transfer devices. Background Technology

[0002] Some known products use nozzles to achieve vacuum adsorption for transfer actions such as picking up and placing. When placing a product down the nozzle, the vacuum environment inside the nozzle needs to be broken to detach the product. Some known nozzles use external airflow to create a positive pressure environment within the air path to forcibly separate the product from the nozzle. This results in the product being subjected to high pressure, leading to a decrease in product yield. Utility Model Content

[0003] This application provides an adsorption component and a transfer device to solve the technical problem of decreased yield during product transfer.

[0004] The embodiments of this application are implemented as follows: In a first aspect, this application provides an adsorption assembly, including a main body, a sealing element, and an elastic element. The main body has an airflow channel and a through-hole. The airflow channel has a first opening and a second opening disposed opposite to each other along its length. The first opening is used to connect to an air source, and the second opening is used to adsorb a product. One end of the through-hole connects to the airflow channel through a connecting port, and the other end of the through-hole extends to the outer surface of the main body. The connecting port is located between the first opening and the second opening. The sealing element is movably disposed in the through-hole. The projection of the sealing element along the axial direction of the through-hole covers the connecting port. The sealing element has a sealing position for closing the connecting port and an open position for opening the connecting port. The elastic element is disposed in the through-hole. One end of the elastic element abuts against the sealing element, and the other end of the elastic element abuts against the main body. The elastic element is used to apply an elastic force to the sealing element in a direction opposite to the connecting port. The pressure difference between the airflow channel and the through hole exerts a force F1 on the seal; when the seal is in the sealed position, the elastic force exerted by the elastic element on the seal is F2, where F1 ≥ F2; when the seal is in the open position, F1 < F2.

[0005] When product adsorption is needed, the second opening is aligned with the product, and the air source is activated, creating a negative pressure environment within the airflow channel. This lowers the air pressure in the airflow channel compared to the through-hole. The pressure difference between the airflow channel and the through-hole exerts a force on the seal along the direction close to the connection, causing the elastic element to deform. During this process, the negative pressure environment gradually decreases until the seal overcomes the elastic force of the elastic element and moves to close the connection, thus entering a sealed position. In this case, the elastic force of the elastic element is F2. Thus, the airflow channel no longer connects to the external environment through the through-hole, ensuring reliable adsorption of the product by the adsorption assembly. When product release is needed, the air pressure in the airflow channel is increased, reducing the force exerted on the seal by the pressure difference between the airflow channel and the through-hole. The seal then moves to the open position under the action of the elastic element, allowing the airflow channel to connect with the through-hole through the connection. Subsequently, ambient air enters the airflow channel through the through-hole, causing the air pressure within the airflow channel to drop rapidly, thereby separating the product from the second opening. During this process, there is no need to introduce a large amount of positive pressure airflow into the airflow channel, thereby avoiding the positive pressure airflow from putting pressure on the product, greatly reducing the possibility of product damage, and improving the product transfer yield.

[0006] In one possible implementation: A protruding limiting portion is formed on the hole surface near one end of the airflow channel. The limiting portion has a through hole, one end of which is connected to the through hole, and the other end of which forms the communication port. The projection of the sealing member on the limiting portion along the axial direction of the through hole covers the through hole.

[0007] In one possible implementation: The adsorption assembly further includes a valve seat, which is located at one end of the through hole away from the airflow channel. The valve seat is connected to the main body and has a connecting hole that connects to the through hole. The other end of the elastic member elastically abuts against the valve seat.

[0008] In one possible implementation: The valve seat has a first limiting groove at one end facing the sealing element, and one end of the elastic element extends into the first limiting groove; the sealing element has a second limiting groove at one end facing the valve seat, and the other end of the elastic element extends into the second limiting groove.

[0009] In one possible implementation: The valve seat includes a bottom and an extension. The bottom is disposed in the through hole. One end of the extension is connected to the bottom, and the other end of the extension extends toward the seal. One end of the elastic member is sleeved on the extension.

[0010] In one possible implementation: The main body includes a first end face, a second end face, and an outer peripheral face. The first end face and the second end face are arranged opposite to each other along the length direction of the main body. The outer peripheral face connects the first end face and the second end face. The first opening is provided on the first end face, the second opening is provided on the second end face, and the through hole extends through to the outer peripheral face.

[0011] In one possible implementation: The airflow channel includes a first section, a second section, and a third section. The first section connects to the first opening, the second section connects to the second opening, and the third section connects to the first section and the second section. The third section connects to the through hole through the connecting port. The distance between the centerline of the first section and the centerline of the main body is less than the distance between the centerline of the third section and the centerline of the main body, and the distance between the centerline of the second section and the centerline of the main body is less than the distance between the centerline of the third section and the centerline of the main body.

[0012] In one possible implementation: The sealing element includes a rigid part and a sealing lip. One end of the rigid part elastically abuts against the elastic element, and the other end of the rigid part is connected to the sealing lip. The sealing lip has a sealing contact surface at the end opposite to the rigid part, and the sealing contact surface covers the communication port.

[0013] In one possible implementation: The adsorption assembly further includes a suction cup component, which is connected to one end of the main body that has the second opening. The end of the suction cup component facing away from the second opening is provided with a suction cup opening, which is used to adsorb the product.

[0014] Secondly, this application provides a gas source and the aforementioned adsorption assembly. The first opening of the main body of the adsorption assembly is connected to the gas source. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an adsorption component according to an embodiment of this application.

[0017] Figure 2 for Figure 1 The diagram shows the exploded structure of the adsorption component.

[0018] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the adsorption assembly, with the elastic element in the open position.

[0019] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the adsorption assembly, in which the elastic element is located in the sealed position.

[0020] Figure 5 This is an exploded structural diagram of a sealing element according to an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the structure of a transfer device according to an embodiment of this application.

[0022] Explanation of key component symbols: Adsorption component 100 Main body 10 Limiting part 11 Seal 20 Rigid part 21 Sealing lip 22 Fastener 23 Elastic element 30 Valve seat 40 Bottom 41 Extension 42 Suction cup part 50 Connecting part 51 Adsorption Lip 52 Dust cover 60 Connector 70 airflow channel K1 First opening K11 Second opening K12 First paragraph K13 Second section K14 Third section K15 Fourth paragraph K16 Through hole K2 Connector K3 Via K4 Connecting hole K5 Vent hole K6 First limiting groove C1 Second limiting groove C2 Fixed slot C3 Sealing groove C4 Step surface P1 First end face P2 Second end face P3 outer peripheral surface P4 Transfer device 200 Gas source 201 Solenoid valve 202 Pressure detector 203 Trachea 204 The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0023] 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.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] See Figures 1 to 3This embodiment provides an adsorption component 100, including a main body 10, a sealing element 20, and an elastic element 30. The main body 10 has an airflow channel K1 and a through hole K2. The airflow channel K1 has a first opening K11 and a second opening K12 arranged opposite to each other along its length. The first opening K11 is used to connect to an air source 201, and the second opening K12 is used to adsorb products (such as products, materials, etc.). One end of the through hole K2 connects to the airflow channel K1 through a connecting port K3, and the other end of the through hole K2 extends to the outer surface of the main body 10 and connects to the external environment. The connecting port K3 is located between the first opening K11 and the second opening K12. The sealing element 20 is movably disposed in the through hole K2. The projection of the sealing element 20 along the axial direction of the through hole K2 covers the connecting port K3. The sealing element 20 has a sealing position for closing the connecting port K3 and an open position for opening the connecting port K3. An elastic element 30 is disposed in the through hole K2. One end of the elastic element 30 abuts against the sealing element 20, and the other end abuts against the main body 10. The elastic element 30 is used to apply an elastic force to the sealing element 20 in a direction away from the connecting opening K3. The pressure difference between the airflow channel K1 and the through hole K2 exerts a force F1 on the sealing element 20; see [link / reference] Figure 3 When the seal 20 is in the sealed position, the elastic force applied by the elastic element 30 to the seal 20 is F2, where F1 ≥ F2; see also Figure 2 When the seal 20 is in the open position, F1 < F2.

[0028] When product adsorption is required, the second opening K12 is aligned with the product, and the air source 201 is activated, creating a negative pressure environment within the airflow channel K1. This lowers the air pressure in the airflow channel K1 compared to the through-hole K2. The pressure difference between the airflow channel K1 and the through-hole K2 applies a force to the sealing element 20 along the direction close to the connection port K3, causing the elastic element 30 to deform. During this process, the air pressure in the negative pressure environment gradually decreases until the sealing element 20 overcomes the elastic force of the elastic element 30 and moves to close the connection port K3, thus entering a sealed position. In this case, the elastic force of the elastic element 30 is F2. Thus, the airflow channel K1 is no longer connected to the external environment through the through-hole K2, ensuring reliable adsorption of the product by the adsorption assembly 100. When product release is required, the air pressure in the airflow channel K1 is increased, reducing the pressure difference between the airflow channel K1 and the through hole K2, which exerts a lower force on the seal 20. The seal 20 then enters the open position under the action of the elastic element 30, allowing the airflow channel K1 to connect with the through hole K2 through the connecting port K3. Subsequently, ambient air enters the airflow channel K1 through the through hole K2, causing a rapid drop in air pressure within the airflow channel K1, thereby separating the product from the second opening K12. During this process, it is unnecessary to introduce a large amount of positive pressure airflow into the airflow channel K1, thus avoiding the pressure exerted on the product by the positive pressure airflow, significantly reducing the possibility of product damage, and improving product transfer yield. For example, it can significantly reduce the possibility of product deformation or displacement.

[0029] Furthermore, since the adsorption component 100 of this embodiment can significantly reduce the use of positive pressure airflow during product release, it can reduce gas costs. The noise level during positive pressure airflow application is also significantly reduced, enabling silent elimination of the negative pressure environment. This allows the adsorption component 100 to be used in environments with high noise requirements, thereby expanding its applicability. Moreover, since positive pressure airflow does not need to pass through the airflow channel K1 to reach the product, the time from the elimination of the negative pressure environment to the separation of the product from the main body 10 is shorter (can be shortened to within the range of 0.01 seconds to 0.2 seconds).

[0030] It is understood that there are multiple ways to reduce the air pressure in the airflow channel K1 in this embodiment, and this embodiment does not specifically limit them. For example, a small amount of positive pressure airflow can be introduced into the airflow channel K1, such as by closing the air source 201 and allowing outside air to enter the airflow channel K1 through the air source 201.

[0031] It should be noted that in the actual application of the adsorption component 100 in this embodiment, the through hole K2 is connected to the external environment, and the air pressure inside the through hole K2 is approximately close to the standard atmospheric pressure. The adsorption force required by the product is usually greater than the elastic force of the elastic element 30 that the sealing element 20 needs to overcome. The air pressure in the airflow channel K1 that enables the adsorption component 100 to reliably adsorb the product is usually less than the air pressure in the airflow channel K1 that enables the sealing element 20 to enter the sealing position. Therefore, when the product adsorption is completed, the sealing element 20 can be switched to the sealing position. If the adsorption force required by the product is less than the elastic force of the elastic element 30 that the sealing element 20 needs to overcome, then it is only necessary to pre-calculate the air pressure value of the airflow channel K1 when the elastic element 30 switches to the sealing position, and then control the air pressure of the airflow channel K1 to reach that air pressure value through the air source 201 during actual operation.

[0032] Optionally, the number of airflow channels K1 can be single or multiple. When there are two or more airflow channels K1, each airflow channel K1 can be connected to a through hole K2, and the second openings K12 of multiple airflow channels K1 can cooperate with each other to simultaneously adsorb a product.

[0033] In some embodiments, see Figure 2A protruding limiting part 11 is formed on the surface of the through hole K2 near the airflow channel K1. A through hole K4 is formed in the limiting part 11, with one end of the through hole K4 connecting to the through hole K2 and the other end forming a connecting opening K3. The projection of the sealing element 20 along the axial direction of the through hole K2 onto the limiting part 11 covers the through hole K4. When the sealing element 20 switches to the sealing position under the action of a pressure difference, the sealing element 20 abuts against the limiting part 11, sealing the connecting opening K3 by blocking the through hole K4. As the pressure difference continues to increase, the limiting part 11 can limit the sealing element 20, keeping it in the sealing position. This improves the reliability of the sealing element 20.

[0034] It is understandable that the projection of the seal 20 along the axial direction of the through hole K2 onto the limiting portion 11 covering the through hole K4 can take two forms. First, the projection formed by the seal 20 extends radially outward from the through hole K4, with the surface of the seal 20 abutting against the limiting portion 11. Second, the shape of the projection formed by the seal 20 is the same as the cross-sectional shape of the through hole K4. In the second case, the seal 20 can be kept within the through hole K2 by controlling the pressure difference between the airflow channel K1 and the through hole K2, ensuring the sealing effect of the seal 20.

[0035] In some embodiments, see Figure 4 The seal 20 includes a rigid portion 21 and a sealing lip 22. One end of the rigid portion 21 elastically abuts against the elastic member 30, and the other end of the rigid portion 21 is connected to the sealing lip 22. The end of the sealing lip 22 facing away from the rigid portion 21 forms a sealing contact surface, which covers the communication port K3. The rigid portion 21 ensures that the elastic member 30 stably transmits power to the seal 20, thereby improving the movement stability of the seal 20.

[0036] In some embodiments, see Figure 4 The seal 20 also includes a fastening part 23. The fastening part 23 secures the sealing lip 22 to the rigid part 21. One end of the fastening part 23 is fixedly connected to the rigid part 21. The other end of the fastening part remains against the sealing lip 22.

[0037] In some embodiments, the rigid part 21 has a fixing groove C3 on the side opposite to the elastic member 30, and the sealing lip 22 is disposed in the fixing groove C3. The sealing lip 22 has a sealing groove C4 on the side opposite to the rigid part 21. The surface of the sealing lip 22 opposite to the rigid part 21 is used to abut against the limiting part 11. After the sealing lip 22 abuts against the rigid part 21, the sealing groove C4 deforms to ensure that the sealing lip 22 reliably abuts against the limiting part 11, thus ensuring sealing reliability. The fastening part 23 passes through the sealing groove C4 and connects to the rigid part 21.

[0038] In some embodiments, see Figure 2 and Figure 3The adsorption assembly 100 also includes a valve seat 40. The valve seat 40 is located at the end of the through hole K2 away from the airflow channel K1. The valve seat 40 is connected to the main body 10. The valve seat 40 has a connecting hole K5 that connects to the through hole K2. The other end of the elastic member 30 elastically abuts against the valve seat 40. The connecting hole K5 serves to connect the through hole K2 with the external environment. The valve seat 40 ensures a reliable connection between the elastic member 30 and the main body 10.

[0039] In this embodiment, the elastic element 30 can be constructed as a spring. The spring elastically abuts against the valve seat 40 and the elastic element 30. In other embodiments, the elastic element 30 can be constructed as a tension spring and abuts against the seal 20 and the limiting portion 11. Therefore, the specific structure of the elastic element 30 can be adjusted according to actual needs, and this application embodiment does not specifically limit it.

[0040] In some embodiments, see Figure 2 A first limiting groove C1 is formed at the end of the valve seat 40 facing the seal 20. One end of the elastic element 30 extends into the first limiting groove C1. A second limiting groove C2 is formed at the end of the seal 20 facing the valve seat 40, and the other end of the elastic element 30 extends into the second limiting groove C2. Both the first limiting groove C1 and the second limiting groove C2 can serve to connect and limit the elastic element 30.

[0041] Specifically, the first limiting groove C1 can be constructed as an annular groove. The second limiting groove C2 can be constructed as an annular groove.

[0042] Optionally, the second limiting groove C2 is provided on the side of the rigid part 21 opposite to the sealing lip 22.

[0043] In some embodiments, see Figure 2 The valve seat 40 includes a bottom 41 and an extension 42. The bottom 41 is located in the through hole K2, one end of the extension 42 is connected to the bottom 41, and the other end of the extension 42 extends toward the seal 20. One end of the elastic member 30 is sleeved on the extension 42.

[0044] Thus, the extension 42 can guide the elastic member 30. In this embodiment, the elastic member 30 is sleeved on the outside of the extension 42; in other embodiments, the elastic member 30 may also extend into the connecting hole K5.

[0045] Optionally, see Figure 2 The end of the through hole K2 away from the connecting opening K3 has a stepped surface P1. The bottom 41 abuts against the stepped surface P1 on the side closest to the connecting opening K3.

[0046] In some embodiments, see Figure 2 and Figure 5The adsorption assembly 100 also includes a dust cover 60. The dust cover 60 is located in the through hole K2 and on the side of the valve seat 40 opposite to the connecting port K3. The dust cover 60 has multiple vent holes K6, at least some of which connect to the connecting hole K5, ensuring that the valve seat 40 can connect to the external environment and the through hole K2. The dust cover 60 also serves a dustproof function, reducing the possibility of dust from the external environment entering the through hole K2 or the airflow channel K1 and causing blockage.

[0047] In some embodiments, see Figure 2 The main body 10 includes a first end face P2, a second end face P3, and an outer peripheral face P4. The first end face P2 and the second end face P3 are arranged opposite to each other along the length direction of the main body 10, and the outer peripheral face P4 connects the first end face P2 and the second end face P3. A first opening K11 is provided on the first end face P2, a second opening K12 is provided on the second end face P3, and a through hole K2 extends through to the outer peripheral face P4.

[0048] Optionally, the cross-section of the outer peripheral surface P4 can be circular, polygonal, or irregular.

[0049] In some embodiments, see Figure 2 The airflow channel K1 includes a first segment K13, a second segment K14, and a third segment K15. The first segment K13 connects to the first opening K11, the second segment K14 connects to the second opening K12, and the third segment K15 connects to both the first segment K13 and the second segment K14. The third segment K15 connects to the through hole K2 via a connecting port K3. The distance between the centerline of the first segment K13 and the centerline of the main body 10 is less than the distance between the centerline of the third segment K15 and the centerline of the main body 10, and the distance between the centerline of the second segment K14 and the centerline of the main body 10 is less than the distance between the centerline of the third segment K15 and the centerline of the main body 10. This makes the distance between the third segment K15 and one side of the main body 10 greater than the distance between the third segment K15 and the other side of the main body 10, thereby increasing the length of the through hole K2. This facilitates the installation of the elastic element 30 and the sealing element 20, improving the overall integration of the main body 10 and ensuring a smaller cross-sectional area of ​​the main body 10.

[0050] In some embodiments, see Figure 2 The airflow channel K1 also includes two fourth segments K16. The first segment K13 connects to one end of the third segment K15 through one fourth segment K16. The second segment K14 connects to the other end of the third segment K15 through the other fourth segment K16. The fourth segments K16 can extend along the width direction of the main body 10 to reduce the overall length of the airflow channel K1.

[0051] In some embodiments, see Figure 2 and Figure 5The adsorption assembly 100 also includes a suction cup component 50. The suction cup component 50 is connected to one end of the main body 10 that has a second opening K12, and the end of the suction cup component 50 that is away from the second opening K12 has a suction cup opening, which is used to adsorb products.

[0052] Optionally, see Figure 5 The suction cup component 50 includes a connecting portion 51 and an adsorption lip 52. The connecting portion 51 can be constructed as a rigid structure to improve the connection reliability between the suction cup component 50 and the main body 10. The connecting portion 51 can be connected to the main body 10 by inserting into the airflow channel K1, or it can be located on the outside of the main body 10 and communicate with the airflow channel K1. One end of the adsorption lip 52 is connected to the connecting portion 51, and the other end of the adsorption lip 52 forms a suction cup opening.

[0053] The connecting part 51 can be connected to the main body 10 through various connection methods such as screw connection, pin connection, and welding.

[0054] In some embodiments, see Figure 5 The adsorption assembly 100 also includes a connector 70. The connector 70 connects to one end of the main body 10 that has a first opening K11. The connector 70 is used to connect to the gas source 201.

[0055] Optionally, the connector 70 can be inserted into the first opening K11 and connected to the body 10 by various means such as screwing, pinning, or welding.

[0056] See Figure 6 This application also provides a transfer device 200. The transfer device 200 includes a gas source 201 and an adsorption component 100 as described in the previous embodiment. The first opening K11 of the main body 10 of the adsorption component 100 is connected to the gas source 201.

[0057] Since the transfer device 200 includes the adsorption component 100 of any of the above embodiments, it has the beneficial effects of the adsorption component 100 of any of the above embodiments, which will not be described again here.

[0058] Alternatively, the adsorption component 100 can be a plurality or a single component.

[0059] In some embodiments, see Figure 6The transfer device 200 also includes an air tube 204, a solenoid valve 202, and a pressure detector 203. The air tube 204 is connected to the connector 70 of the adsorption assembly 100 and is connected to the airflow channel K1. The other end of the air tube 204 is connected to the air source 201 via the solenoid valve 202. The middle of the air tube 204 is connected to the pressure detector 203. The transfer device 200 may also include a controller. The solenoid valve 202, the pressure detector 203, and the air source 201 can all be connected to the controller. The controller controls the air source 201 to provide either a positive pressure environment for inflation or a negative pressure environment for suction, based on the control signal from the solenoid valve 202 and the signal from the pressure detector 203.

[0060] In some embodiments, see Figure 5 The outer peripheral surface P4 of one end of the main body 10 with the first opening K11 is provided with a thread to facilitate the connection of the air pipe 204.

[0061] 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 the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. An adsorption component, characterized in that, include: The main body has an airflow channel and a through hole. The airflow channel has a first opening and a second opening that are arranged opposite to each other along its length. The first opening is used to connect to an air source, and the second opening is used to adsorb products. One end of the through hole is connected to the airflow channel through a connecting port, and the other end of the through hole extends to the outer surface of the main body. The connecting port is located between the first opening and the second opening. A sealing element is movably disposed in the through hole, the projection of the sealing element along the axial direction of the through hole covers the communication opening, and the sealing element has a sealing position for closing the communication opening and an opening position for opening the communication opening; An elastic element is provided in the through hole, one end of the elastic element abuts against the sealing element, and the other end of the elastic element abuts against the body. The elastic element is used to apply an elastic force to the sealing element in a direction away from the through hole. Wherein, the pressure difference between the airflow channel and the through hole exerts a force F1 on the sealing element; when the sealing element is in the sealed position, the elastic force exerted by the elastic element on the sealing element is F2, and F1≥F2; When the seal is in the open position, F1 < F2.

2. The adsorption component according to claim 1, characterized in that: A protruding limiting portion is formed on the hole surface near one end of the airflow channel. The limiting portion has a through hole, one end of which is connected to the through hole, and the other end of which forms the communication port. The projection of the sealing member on the limiting portion along the axial direction of the through hole covers the through hole.

3. The adsorption component according to claim 1, characterized in that: The adsorption assembly further includes a valve seat, which is located at one end of the through hole away from the airflow channel. The valve seat is connected to the main body and has a connecting hole that connects to the through hole. The other end of the elastic member elastically abuts against the valve seat.

4. The adsorption component according to claim 3, characterized in that: The valve seat has a first limiting groove at one end facing the sealing element, and one end of the elastic element extends into the first limiting groove; The sealing element has a second limiting groove at one end facing the valve seat, and the other end of the elastic element extends into the second limiting groove.

5. The adsorption component according to claim 3, characterized in that: The valve seat includes a bottom and an extension. The bottom is disposed in the through hole. One end of the extension is connected to the bottom, and the other end of the extension extends toward the seal. One end of the elastic member is sleeved on the extension.

6. The adsorption component according to claim 1, characterized in that: The main body includes a first end face, a second end face, and an outer peripheral face. The first end face and the second end face are arranged opposite to each other along the length direction of the main body, and the outer peripheral face is connected to the first end face and the second end face. The first opening is located on the first end face, the second opening is located on the second end face, and the through hole extends through to the outer peripheral surface.

7. The adsorption component according to claim 6, characterized in that: The airflow channel includes a first section, a second section, and a third section. The first section connects to the first opening, the second section connects to the second opening, and the third section connects to the first section and the second section. The third section connects to the through hole through the connecting port. The distance between the centerline of the first section and the centerline of the main body is less than the distance between the centerline of the third section and the centerline of the main body, and the distance between the centerline of the second section and the centerline of the main body is less than the distance between the centerline of the third section and the centerline of the main body.

8. The adsorption component according to claim 1, characterized in that: The sealing element includes a rigid part and a sealing lip. One end of the rigid part elastically abuts against the elastic element, and the other end of the rigid part is connected to the sealing lip. The sealing lip has a sealing contact surface at the end opposite to the rigid part, and the sealing contact surface covers the communication port.

9. The adsorption component according to claim 1, characterized in that: The adsorption assembly further includes a suction cup component, which is connected to one end of the main body that has the second opening. The end of the suction cup component facing away from the second opening is provided with a suction cup opening, which is used to adsorb the product.

10. A transfer device, characterized in that, include: Gas source; The adsorption assembly as described in any one of claims 1 to 9, wherein the first opening of the main body of the adsorption assembly is connected to the gas source.

Images