Stacked porous handling chuck

Abstract

The utility model discloses a kind of laminated porous carrying suction cups, including the suction cup main part made of non-metallic material and the vacuum generating device of connecting suction cup main part, the suction cup main part is equipped with airflow passage, the suction cup main part is the plate structure with certain thickness, the upper surface of the suction cup main part is equipped with the interface for being connected with carrying mechanism, the lower surface of the suction cup main part is equipped with adsorption surface, the adsorption surface is evenly provided with multiple adsorption holes, the number of the adsorption hole is 8 to 24, the adsorption hole is extracted by airflow passage by vacuum generating device, and evenly distributed negative pressure adsorption force is generated on the adsorption surface, for adsorbing pole piece. Overall adsorption force uniformity, operation safety, equipment versatility and maintenance convenience are improved, and reliable technical support is provided for the efficient, stable carrying of thin pole piece.

Description

Technical Field

[0001] This utility model relates to the field of suction technology, specifically a stacked multi-hole transport suction cup. Background Technology

[0002] In the field of automated handling of battery cell electrodes (especially thin, flexible electrodes), traditional chucks have many technical limitations. Existing chucks mostly employ a design with 4-6 suction holes, concentrating the suction force at a few points. This easily leads to uneven stress on the thin, flexible electrodes, causing wrinkles, plastic deformation, or even breakage. Some chucks are made of metal, which can easily cause surface scratches or introduce metal ion contamination when in contact with the electrodes, affecting the quality of the battery cell. At the same time, the airflow channel design of traditional chucks is simple, with poor matching between the main and branch channels, large vacuum deviations between suction holes (often exceeding ±10%), and uneven negative pressure distribution, making the electrodes prone to detachment during handling. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides a stacked multi-hole transport suction cup, which can effectively solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A multi-hole suction cup for stacking electrodes includes a suction cup body made of non-metallic material and a vacuum generating device connected to the suction cup body. The suction cup body is provided with an airflow channel and has a plate-like structure with a certain thickness. The upper surface of the suction cup body is provided with an interface for connecting with a conveying mechanism, and the lower surface of the suction cup body is provided with an adsorption surface. The adsorption surface is uniformly provided with a plurality of adsorption holes, the number of which is 8 to 24. The adsorption holes are evacuated through the airflow channel by the vacuum generating device to generate a uniformly distributed negative pressure adsorption force on the adsorption surface for adsorbing electrodes.

[0006] The airflow channel is located inside the suction cup body. The airflow channel includes a main channel for connecting a vacuum generating device, multiple branch channels, and multiple plugs. One end of the main channel leads to an interface on the upper surface of the suction cup body, and the other end is connected to the multiple branch channels. The end of each branch channel is connected to a plug, and the multiple branch channels are respectively connected to each adsorption hole.

[0007] As a further description of the above technical solution, the material of the suction cup body is acetal steel.

[0008] As a further description of the above technical solution, the suction surface of the suction cup body is rectangular or circular.

[0009] As a further description of the above technical solution, the pore size of the adsorption pore is 0.5 mm to 2 mm.

[0010] As a further description of the above technical solution, the airflow channel is formed inside the suction cup body by machining or additive manufacturing.

[0011] As a further description of the above technical solution, the suction cup body is provided with at least one spare air port for connecting a spare vacuum generator, wherein the plug is detachably and sealed at the spare air port.

[0012] As a further description of the above technical solution, the interface on the upper surface of the suction cup body is a screw hole or a quick-change connector slot.

[0013] As a further description of the above technical solution, a positioning hole is provided in the central region of the adsorption surface, and the diameter of the positioning hole is larger than the diameter of the adsorption hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The stacked multi-hole conveying suction cup of this utility model has at least one of the following beneficial effects during use:

[0016] By employing 8-24 evenly distributed adsorption holes, the adsorption force is dispersed into a nearly uniform load. Combined with a tiered airflow channel structure, this reduces vacuum deviation between adsorption holes, significantly improving the uniformity of negative pressure distribution and effectively avoiding the problems of electrode wrinkling, plastic deformation, or detachment caused by concentrated force in traditional suction cups with fewer holes. The suction cup body is made of high-rigidity acetal alloy, ensuring both the geometric accuracy of the adsorption surface and eliminating the risk of scratches, contamination, and short circuits caused by metal contact. Combined with a uniform adsorption force field, this ensures the electrode remains flat during handling and resists external interference. The design of a spare air duct and a removable plug enhances equipment reliability and reduces downtime risks; screw holes or quick-connect couplings enhance versatility, adapting to various handling mechanisms; and a central positioning hole improves adsorption positioning accuracy. In summary, this achieves non-destructive, stable, and efficient handling of thin, soft electrodes, improving production quality and continuity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a stacked porous conveying suction device according to the present invention;

[0018] Figure 2 This is a side view of a stacked porous conveying suction device according to the present invention;

[0019] Figure 3 This is a perspective view of a stacked porous conveying suction device according to the present invention.

[0020] Numbering on the map:

[0021] 1. Suction cup body; 2. Airflow channel; 3. Adsorption surface; 4. Interface; 5. Adsorption hole; 6. Main channel; 7. Branch channel; 8. Plug; 9. Positioning hole; 10. Spare airway. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-3 As shown, this utility model provides a multi-hole transfer suction cup for stacked plates, including a suction cup body 1 made of non-metallic material and a vacuum generating device connected to the suction cup body 1. The suction cup body 1 is provided with an airflow channel 2. The suction cup body 1 has a plate-like structure with a certain thickness. The upper surface of the suction cup body 1 is provided with an interface 4 for connecting with a transfer mechanism. The lower surface of the suction cup body 1 is provided with an adsorption surface 3. The adsorption surface 3 is uniformly provided with a plurality of adsorption holes 5. The number of adsorption holes 5 is 8 to 24. The adsorption holes 5 are evacuated through the airflow channel 2 by the vacuum generating device, generating a uniformly distributed negative pressure adsorption force on the adsorption surface 3 for adsorbing electrode sheets.

[0024] This embodiment achieves non-destructive, stable, and efficient handling of battery cell electrodes (especially thin and flexible electrodes) through atmospheric pressure difference and precise structural design. Numerous uniformly distributed adsorption pores 5 disperse the adsorption force into an approximately uniform load. By optimizing the channel design and pore density, the uniformity of pressure distribution within the adsorption surface 3 is significantly improved.

[0025] The airflow channel 2 is located inside the suction cup body 1. The airflow channel 2 includes a main channel 6 for connecting a vacuum generating device, multiple branch channels 7 and multiple plugs 8. One end of the main channel 6 leads to the interface 4 on the upper surface of the suction cup body 1, and the other end is connected to the multiple branch channels 7. The end of each branch channel 7 is connected to a plug 8, and the multiple branch channels 7 are respectively connected to each adsorption hole 5.

[0026] An external vacuum generator (such as a vacuum pump or vacuum generator) is rigidly connected via the upper surface interface 4, providing a stable and controllable negative pressure source. The suction cup is internally designed with a tiered airflow channel system 2.

[0027] Main airflow channel 2: Serving as the "main channel" for negative pressure, it directly connects to the vacuum source interface 4 and has a large cross-sectional area, ensuring rapid air extraction capability under low flow resistance. This solves the problem of uneven local adsorption force caused by flow path differences in traditional single-point / multi-point suction cups.

[0028] Branch airflow channels 2: These precisely branch off from the main channel 6 and extend to each individual adsorption orifice 5. The cross-sectional area, length design, and branch point shape (e.g., gradual transition) of the channels are all optimized for fluid dynamics (e.g., computational fluid dynamics simulation) to minimize the pressure drop difference (ΔP) between branches. The goal is to ensure that the vacuum deviation at the inlet of each adsorption orifice 5 is controlled within ±5%.

[0029] As air is continuously drawn away, a stable low-pressure region is formed inside the suction cup (including all channels and adsorption holes 5). Since the adsorption holes 5 are evenly distributed on the adsorption surface 3 (lower surface) (e.g., using a matrix, honeycomb, or array optimized according to the electrode stress distribution), the low-pressure region is effectively transferred and evenly covers the entire adsorption contact area, forming a highly uniform negative pressure "field".

[0030] When the adsorption surface 3 comes into physical contact with the electrode surface (usually with the contact force and orientation precisely controlled by the handling mechanism), a temporary sealed space is formed between them, significantly increasing the effective adsorption surface area 3. The electrode is firmly adsorbed onto the suction cup by a uniformly distributed and controllable adsorption force. This adsorption mode avoids stress concentration points and matches the overall rigidity of the electrode.

[0031] Furthermore, the suction cup body 1 is made of acetal steel.

[0032] The suction cup body 1 is made of high-rigidity engineering plastic POM (polyoxymethylene), which has a high elastic modulus. Even under negative pressure and handling acceleration, the deformation of the suction cup body is minimal, ensuring the geometric accuracy and flatness of the adsorption surface 3. Its surface is smooth and is made of non-metallic material, completely eliminating the hidden dangers of metal contact that may cause scratches on the electrode surface, metal ion contamination, or micro-short circuits.

[0033] During handling, the uniform adsorption force field combined with the rigid suction cup ensures that the electrode maintains an ideal planar state, effectively resisting the influence of external forces such as gravity, handling acceleration, and air disturbance, and significantly reducing the risk of micro-wrinkles, plastic deformation, or detachment caused by bending stress.

[0034] Furthermore, the suction surface 3 of the suction cup body 1 is rectangular or circular in shape.

[0035] The adsorption surface 3 can be designed as rectangular or circular to accommodate electrode sheets of different shapes. The suction cup body 1 is a plate-shaped non-metallic structure with a preset thickness and internally connected airflow channels 2. An external vacuum generator is connected to the main channel 6 through the interface 4 on the upper surface of the suction cup body 1. When the vacuum generator is activated, the airflow passes through the interface 4, the main channel 6, and the branch channel 7 in sequence, and finally acts on the multiple adsorption holes 5 on the adsorption surface 3 on the lower surface of the suction cup body 1.

[0036] Furthermore, the pore diameter of the adsorption pore 5 is 0.5 mm to 2 mm.

[0037] Furthermore, the airflow channel 2 is formed inside the suction cup body 1 by machining or additive manufacturing.

[0038] Furthermore, the suction cup body 1 is provided with at least one backup air port 10 for connecting a backup vacuum generator, wherein the plug 8 is detachably and sealed at the backup air port 10.

[0039] The vacuum generator extracts air from the adsorption holes 5 and the space between the electrode and the adsorption surface 3 through the airflow channel 2, creating a uniformly distributed negative pressure within the adsorption holes 5. Because there are a large number of adsorption holes 5 (8-24) and they are evenly distributed on the adsorption surface 3, the negative pressure creates a multi-point uniform adsorption force on the electrode surface, overcoming the electrode's own gravity and achieving stable adsorption. Once the target position is reached, the vacuum generator stops working or the control valve switches, introducing balanced air (atmospheric pressure) into the suction cup, and the internal pressure of the suction cup quickly returns to atmospheric pressure.

[0040] Furthermore, the interface 4 on the upper surface of the suction cup body 1 is a screw hole or a quick-connect coupling slot. The upper surface interface 4 being a screw hole or a quick-connect coupling slot facilitates quick connection with different types of handling mechanisms, improving the equipment's versatility.

[0041] Furthermore, the central region of the adsorption surface 3 is provided with a positioning hole 9, the diameter of which is larger than that of the adsorption hole 5. The positioning hole 9 at the center of the adsorption surface 3 can be used in conjunction with an external positioning mechanism to ensure the positional accuracy of the electrode during adsorption.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stacked porous conveying suction cup, comprising a suction cup body made of non-metallic material and a vacuum generating device connected to the suction cup body, characterized in that, The suction cup body is provided with an airflow channel. The suction cup body is a plate-shaped structure with a certain thickness. The upper surface of the suction cup body is provided with an interface for connecting with a conveying mechanism. The lower surface of the suction cup body is provided with an adsorption surface. The adsorption surface is evenly provided with a plurality of adsorption holes. The number of adsorption holes is 8 to 24. The adsorption holes are evacuated through the airflow channel by a vacuum generator to generate a uniformly distributed negative pressure adsorption force on the adsorption surface for adsorbing the electrode sheet. The airflow channel is located inside the suction cup body. The airflow channel includes a main channel for connecting a vacuum generating device, multiple branch channels, and multiple plugs. One end of the main channel leads to an interface on the upper surface of the suction cup body, and the other end is connected to the multiple branch channels. The end of each branch channel is connected to a plug, and the multiple branch channels are respectively connected to each adsorption hole.

2. The stacked multi-hole conveying suction cup according to claim 1, characterized in that: The suction cup body is made of acetal steel.

3. A stacked porous conveying suction cup according to claim 1 or 2, characterized in that: The suction surface of the suction cup body is rectangular or circular.

4. The stacked multi-hole conveying suction cup according to claim 1, characterized in that: The pore size of the adsorption pore is 0.5 mm to 2 mm.

5. A stacked multi-hole conveying suction cup according to claim 1, characterized in that: The airflow channel is formed inside the suction cup body through machining or additive manufacturing.

6. The stacked multi-hole conveying suction cup according to claim 1, characterized in that: The suction cup body is provided with at least one spare air port for connecting a spare vacuum generator, wherein the plug is detachably and sealed at the spare air port.

7. A stacked multi-hole conveying suction cup according to claim 1, characterized in that: The interface on the upper surface of the suction cup body is a screw hole or a quick-change connector slot.

8. A stacked multi-hole conveying suction cup according to claim 1, characterized in that: The central region of the adsorption surface is provided with a positioning hole, the diameter of which is larger than that of the adsorption hole.

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