A type of package sorting suction cup
By designing a sorting suction cup and using a buffer and a multi-pleated soft skirt suction cup, the problem of poor compatibility in grasping products of different sizes and soft packaging in the existing technology has been solved, and the stability and efficiency of automated sorting have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WANTAI AUTOMATION TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies suffer from poor compatibility and are unable to effectively handle express delivery products of varying sizes and with flexible packaging, especially plastic bags, which can easily damage the products and require manual secondary sorting.
A sorting suction cup was designed, including a base plate, a suction component, a buffer, and a suction cup. It is connected to a robotic arm through a negative pressure device. The suction component is elastically slidably installed through the buffer. The suction cup adopts a multi-pleated soft skirt structure, combined with a valve-controlled cylinder and microporous vents, to achieve independent suction and stable gripping.
It improves compatibility with products of different sizes and flexible packaging, reduces product damage, achieves stability and efficiency in automated sorting, and reduces human intervention.
Smart Images

Figure CN224429378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suction cup technology, specifically a sorting suction cup for packages. Background Technology
[0002] In the sorting and handling of express delivery products, the sizes and packaging forms of express products vary, especially plastic bag packaging. The quality of the bags is inconsistent, the surface is easily damaged, and the packaging is easily deformed during transportation. In the past, mechanical gripping and sorting methods could not smoothly grasp many kinds of boxes or soft bags, which could easily damage the products. The gripping methods also had poor compatibility and often required secondary manual sorting. Traditional suction cups could not pick up plastic bags and were prone to dropping items. Therefore, we have made improvements to this and proposed a sorting suction cup. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a sorting suction cup to address the issues raised in the background section.
[0004] The technical problem solved by this utility model is achieved by the following technical solution: a sorting package suction cup, including a base plate and suction components distributed and installed on the base plate. A mounting flange is installed on the base plate to connect with a robotic arm through the mounting flange. The suction components are elastically slidably disposed with the base plate through buffers provided on both sides. The suction components include an air inlet seat and a disc body connected to the air inlet seat. A plurality of suction cups for absorbing items are distributed at the lower end of the disc body.
[0005] The air intake seat has an air intake chamber, and the disc body has an air distribution chamber. The air intake seat is equipped with a valve control for controlling the flow of the air intake chamber and the air distribution chamber. The upper end of the air intake seat is equipped with an air intake pagoda connector for connecting to an external negative pressure device.
[0006] As a further embodiment of this utility model:
[0007] The buffer component includes buffer rods fixedly installed on both sides of the air intake seat. The buffer rods are fixedly installed in the corresponding screw holes of the air intake seat through rod joints. The base plate is provided with guide sleeves corresponding to the buffer rods. The upper end of the buffer rod is slidably disposed in the guide sleeve. A buffer spring is provided on the outer sleeve of the buffer rod. One side of the buffer spring abuts against the rod joint, and the other side abuts against the lower end of the guide sleeve, so that the air intake seat and the base plate are elastically disposed. An anti-detachment cylinder is provided at the outer end of the buffer rod located in the guide sleeve. The anti-detachment cylinder is threadedly fixedly connected to the buffer rod to prevent the buffer rod from detaching from the guide sleeve.
[0008] As a further embodiment of this utility model:
[0009] A threaded sleeve is fixedly installed on the substrate corresponding to the guide sleeve. The outer end of the guide sleeve has an external thread, and the guide sleeve is threadedly installed inside the threaded sleeve. The lower end of the guide sleeve has a rotating part that facilitates rotation. The rotating part has a hexagonal structure. The height of the guide sleeve can be adjusted to adjust the force of the buffer spring.
[0010] As a further embodiment of this utility model:
[0011] The substrate is provided with a detection component for detecting the position of the buffer rod to determine whether the suction component is in contact with the item. The detection component includes a bracket mounted on the substrate and a proximity switch adjustablely mounted on the bracket. The bracket is located on one side of the buffer rod and has a vertically arranged adjustment hole. The proximity switch is clamped in the adjustment hole by bolts to adjust the height of the proximity switch.
[0012] As a further embodiment of this utility model:
[0013] The disc body contains multiple air distribution chambers spaced apart, separated into individual chambers by partitions. Each individual chamber is connected to the air inlet chamber via a valve port. The valve control is used to control the opening and closing of the valve port, and multiple sets of valve control ports can be provided corresponding to the distributed air distribution chambers. Dividing the disc body into several air distribution chambers allows the suction cups in each area to operate independently, avoiding local pressure relief from affecting all suction cups and improving suction stability.
[0014] As a further embodiment of this utility model:
[0015] The valve control system includes a valve-controlled cylinder mounted on the intake seat and a valve block disposed at the outer end of the output rod of the valve-controlled cylinder. The valve block is built into the intake chamber and located at the upper end of the valve hole for sealing the valve hole. A sealing groove is provided on the outer side of the valve hole, and a sealing block inserted into the sealing groove is provided at the lower end of the valve block to improve the sealing performance.
[0016] As a further embodiment of this utility model:
[0017] The suction cup is fixedly installed at the lower end of the plate body by the plate column. The lower end of the air distribution chamber is provided with a vent hole that connects to the suction cup. The vent hole adopts a microporous structure, which can avoid excessive air leakage and unstable grip when suctioning small area products. The suction cup adopts a multi-pleated soft skirt-shaped suction cup, which increases compatibility and can effectively grip film-wrapped products.
[0018] As a further embodiment of this utility model:
[0019] The outer end of the air intake seat is equipped with a negative pressure gauge to detect the air pressure in the air intake chamber, and the disc is equipped with a backflush port that communicates with the air distribution chamber so as to quickly break the vacuum and release the item through backflush.
[0020] Compared with existing technologies, the beneficial effects of this utility model are as follows: Suction components are distributed on the substrate, and these components are elastically lifted and lowered on the substrate via buffer components. The independently set suction components can pick up different positions of items, are compatible with products of different heights and sizes, and increase the degree of adhesion to the items. The suction cup uses a multi-pleated soft skirt suction cup, increasing compatibility and effectively gripping film-wrapped products. The device uses a vacuum pump as a vacuum source, connected to negative pressure through a large-diameter pagoda connector, and a valve-controlled cylinder controls the on / off state, increasing the negative pressure flow. A negative pressure gauge is installed outside the air inlet to determine whether the product has been successfully gripped. A photoelectric switch is installed on the substrate to detect the position of the buffer rod, preventing overpressure of the suction cup and damage to the product. The suction cup is divided into multiple zones, and the vent holes use micropores, which can prevent excessive air leakage and unstable gripping when picking up small-area products. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a partial cross-sectional view of the present invention.
[0023] The diagram identifies the following components: 1. Base plate; 2. Buffer component; 3. Air inlet seat; 4. Disc body; 5. Suction cup; 6. Bracket; 7. Valve-controlled cylinder; 8. Negative pressure gauge; 9. Backflush port; 11. Mounting flange; 21. Buffer rod; 22. Rod connector; 23. Guide sleeve; 24. Buffer spring; 25. Anti-detachment sleeve; 26. Screw sleeve; 27. Rotating part; 31. Air inlet chamber; 32. Air inlet pagoda connector; 41. Air distribution chamber; 42. Partition plate; 43. Vent hole; 61. Proximity switch; 62. Adjustment hole; 71. Valve block. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.
[0025] like Figures 1-2 As shown, this embodiment provides a sorting package suction cup, including a base plate 1 and suction components distributed and installed on the base plate 1. The base plate 1 is equipped with a mounting flange 11 for connection to a robotic arm. The suction components can be adjusted according to the size of the package, and can be provided in several groups. The suction components are elastically slidably set with the base plate 1 through a buffer 2 to reduce the downward pressure. The suction components include an air inlet seat 3 and a disc body 4 connected to the air inlet seat 3. Several suction cups 5 for absorbing items are distributed at the lower end of the disc body 4. The air inlet seat 3 is provided with an air inlet chamber 31, and the disc body 4 is provided with an air distribution chamber 41. The air inlet seat 3 is provided with a valve control for controlling the opening and closing of the air inlet chamber 31 and the air distribution chamber 41. The upper end of the air inlet seat 3 is provided with an air inlet pagoda connector 32 for connection to an external negative pressure device.
[0026] In this embodiment, the buffer component 2 includes buffer rods 21 fixedly installed on both sides of the air intake seat 3. The buffer rods 21 are fixedly installed in the corresponding screw holes of the air intake seat 3 through rod joints 22. The base plate 1 is provided with guide sleeves 23 corresponding to the buffer rods 21. The upper end of the buffer rods 21 is slidably disposed in the guide sleeves 23. The buffer rods 21 are covered with buffer springs 24. One side of the buffer springs 24 abuts against the rod joints 22, and the other side abuts against the lower end of the guide sleeves 23, so that the air intake seat 3 and the base plate 1 are elastically disposed. The buffer rods 21 are provided with anti-detachment sleeves 25 at the outer end of the guide sleeves 23. The anti-detachment sleeves 25 are threadedly fixedly connected to the buffer rods 21 to prevent the buffer rods 21 from detaching from the guide sleeves 23.
[0027] If the spring pressure of buffer 2 is too low, it may cause the item to wobble up and down during movement; if the spring pressure is too high, it may exert too much pressure on the item, causing damage. Therefore, this embodiment proposes a technical solution to solve the above problems:
[0028] A threaded sleeve 26 is fixedly installed on the base plate 1 corresponding to the guide sleeve 23. The outer end of the guide sleeve 23 is provided with an external thread, and the guide sleeve 23 is threadedly installed in the threaded sleeve 26. The lower end of the guide sleeve 23 is provided with a rotating part 27 for easy rotation. The rotating part 27 has a hexagonal structure. The height of the guide sleeve 23 can be adjusted by the operator to adjust the force of the buffer spring 24.
[0029] In this embodiment, a detection component for detecting the position of the buffer rod 21 is provided on the substrate 1 to determine whether the suction component is in contact with the item. The detection component includes a bracket 6 mounted on the substrate 1 and a proximity switch 61 adjustablely mounted on the bracket 6. The bracket 6 is located on one side of the buffer rod 21. The bracket 6 is provided with a vertically arranged adjustment hole 62. The proximity switch 61 is clamped in the adjustment hole 62 by bolts so that the height of the proximity switch 61 can be adjusted.
[0030] In this embodiment, multiple air distribution chambers 41 are spaced apart within the disc body 4. These chambers are separated into individual cavities by partitions 42, and each individual cavity is connected to the air inlet chamber 31 via a valve port. The valve control is used to control the opening and closing of the valve port. Multiple sets of valve control devices can be provided corresponding to the distributed air distribution chambers 41. Dividing the disc body 4 into several air distribution chambers 41 allows the suction cups 5 in each area to be independent, preventing localized pressure relief from affecting all suction cups 5 and improving suction stability.
[0031] The valve control system includes a valve-controlled cylinder 7 mounted on the air intake seat 3 and a valve block 71 disposed at the outer end of the output rod of the valve-controlled cylinder 7. The valve block 71 is built into the air intake chamber 31 and located at the upper end of the valve hole for sealing the valve hole. A sealing groove is provided on the outer side of the valve hole, and a sealing block inserted into the sealing groove is provided at the lower end of the valve block 71 to improve the sealing performance.
[0032] In this embodiment, the suction cup 5 is fixedly installed at the lower end of the plate body 4 by the plate column. The lower end of the air distribution chamber 41 is provided with a vent hole 43 that connects to the suction cup 5. The vent hole 43 adopts a microporous structure, which can avoid excessive air leakage and unstable gripping when sucking up small area products. The suction cup 5 adopts a multi-pleated soft skirt-shaped suction cup 5, which increases compatibility and can effectively grip film-wrapped products.
[0033] In this embodiment, the outer end of the air inlet seat 3 is provided with a negative pressure gauge 8 for detecting the air pressure in the air inlet chamber 31, and the disc body 4 is provided with a backflush port 9 that communicates with the air distribution chamber 41, so as to quickly break the vacuum and release the item by backflush.
[0034] The working principle of this utility model is as follows: During the gripping process, after the camera determines the material to be gripped, the suction cup 5 presses down to contact the material. When the buffer rod 21 rises to the sensing position of the proximity switch 61, the vacuum pump is turned on to generate negative pressure. The negative pressure enters the air intake chamber 31 through the air intake pagoda connector 32, and then the solenoid valve group controls the valve control cylinder 7, which drives the valve block 71 to open the valve hole. The negative pressure enters the air distribution chamber 41 from the air intake chamber 31, and then enters the suction cup 5 through the vent hole. When the negative pressure gauge 8 reaches the gripping value, sorting and handling begin. During the movement, the negative pressure gauge 8 determines whether the material has fallen. When the material reaches the designated position, the solenoid valve controls the positive pressure air to enter the air distribution chamber 41 through the backflush port 9, thereby quickly breaking the vacuum and accelerating the release of the product.
[0035] The substrate 1 is equipped with suction components, which are elastically raised and lowered on the substrate 1 via buffer 2. These independently designed suction components can pick up different positions of items, are compatible with products of varying heights and sizes, and increase the adhesion to the items. The suction cup 5 uses a multi-pleated soft skirt design, increasing compatibility and effectively gripping film-wrapped products. The device uses a vacuum pump as the vacuum source, connected to negative pressure via a large-diameter pagoda connector. A valve-controlled cylinder 7 controls the on / off state, increasing the negative pressure flow. A negative pressure gauge is installed outside the air inlet 3 to determine if the product has been successfully gripped. A photoelectric switch is installed on the substrate 1 to detect the position of the buffer rod 21, preventing overpressure on the suction cup 5 and damage to the product. The suction cup 5 has multiple zones, and the ventilation holes use micropores to prevent excessive air leakage and unstable gripping when picking up small-area products.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A sorting suction cup for packages, characterized in that: The system includes a base plate (1) and suction components distributed on the base plate (1). A mounting flange (11) is installed on the base plate (1) to connect with a robotic arm. The suction components are elastically slidably disposed with the base plate (1) through buffers (2) provided on both sides. The suction components include an air inlet seat (3) and a disc body (4) connected to the air inlet seat (3). Several suction cups (5) for suctioning items are distributed at the lower end of the disc body (4). The air inlet seat (3) is provided with an air inlet chamber (31), and the disc body (4) is provided with an air distribution chamber (41). The air inlet seat (3) is provided with a valve control for controlling the air inlet chamber (31) and the air distribution chamber (41). The upper end of the air inlet seat (3) is provided with an air inlet pagoda connector (32) for connecting to an external negative pressure device through the air inlet pagoda connector.
2. The sorting suction cup according to claim 1, characterized in that: The buffer component (2) includes buffer rods (21) fixedly installed on both sides of the air intake seat (3). The buffer rods (21) are fixedly installed in the corresponding screw holes of the air intake seat (3) through rod joints (22). The base plate (1) is provided with guide sleeves (23) corresponding to the buffer rods (21). The upper end of the buffer rods (21) is slidably disposed in the guide sleeves (23). The buffer rods (21) are covered with buffer springs (24). One side of the buffer springs (24) abuts against the rod joints (22), and the other side abuts against the lower end of the guide sleeves (23) so that the air intake seat (3) and the base plate (1) are elastically disposed. The buffer rods (21) are provided with anti-detachment sleeves (25) at the outer end of the guide sleeves (23). The anti-detachment sleeves (25) are threadedly fixedly connected to the buffer rods (21).
3. A sorting suction cup for packages according to claim 2, characterized in that: The substrate (1) is fixedly installed with a screw sleeve (26) corresponding to the guide sleeve (23). The outer end of the guide sleeve (23) is provided with an external thread. The guide sleeve (23) is threadedly installed in the screw sleeve (26). The lower end of the guide sleeve (23) is provided with a rotating part (27) that facilitates rotation. The rotating part (27) has a hexagonal structure.
4. A sorting suction cup for packages according to claim 2, characterized in that: The substrate (1) is provided with a detection component for detecting the position of the buffer rod (21). The detection component includes a bracket (6) mounted on the substrate (1) and a proximity switch (61) adjustablely mounted on the bracket (6). The bracket (6) is located on one side of the buffer rod (21). The bracket (6) is provided with a vertically arranged adjustment hole (62). The proximity switch (61) is installed in the adjustment hole (62) by bolts.
5. A sorting suction cup for packages according to claim 1, characterized in that: The disc body (4) has multiple air distribution chambers (41) spaced apart. The air distribution chambers (41) are separated into individual chambers by partitions (42), and each individual chamber is connected to the air inlet chamber (31) through a valve hole. The valve control is used to control the opening and closing of the valve hole. Multiple sets of valve control are provided for the air distribution chambers (41) that are distributed accordingly.
6. A sorting package suction cup according to claim 5, characterized in that: The valve control system includes a valve-controlled cylinder (7) mounted on the air intake seat (3) and a valve block (71) located at the outer end of the output rod of the valve-controlled cylinder (7). The valve block (71) is built into the air intake chamber (31) and located at the upper end of the valve hole for sealing the valve hole. A sealing groove is provided on the outer side of the valve hole, and a sealing block inserted into the sealing groove is provided at the lower end of the valve block (71) to improve the sealing performance.
7. A sorting package suction cup according to claim 6, characterized in that: The suction cup (5) is fixedly installed at the lower end of the plate body (4) by the plate column. The lower end of the air distribution chamber (41) is provided with a vent hole (43) that connects to the suction cup (5). The vent hole (43) adopts a microporous structure. The suction cup (5) adopts a multi-pleated soft skirt-shaped suction cup (5).
8. A sorting package suction cup according to claim 7, characterized in that: The outer end of the air intake seat (3) is provided with a negative pressure gauge (8) for detecting the air pressure in the air intake chamber (31), and the disc body (4) is provided with a backflush port (9) that communicates with the air distribution chamber (41).