Non-equidistant taking and placing device for high-speed film receiving machine

Abstract

The invention relates to the technical field of battery piece production, in particular to an unequal-distance taking and placing device for a high-speed piece collecting machine, which comprises a sucker unequal-distance mechanism, a sucker unequal-distance mechanism, a sucker unequal-distance mechanism and a sucker unequal-distance mechanism, the tray comprises a sampling inspection tray and a product tray, the mechanism comprises a rack, a sliding block set, a suction cup set and a cam shaft, the cam shaft is arranged in the rack, a plurality of cam contour sections are arranged on the cam shaft, a guide rail is arranged at the bottom of a containing cavity of the rack, sliding blocks are connected with the cam shaft through cam followers, and suction cups are fixedly connected to the bottom ends of the sliding blocks; the sliding block group is divided into a first sliding block group and a second sliding block group, and the second sliding block group comprises a plurality of sliding block units; the suction cup sets are in a polymerization state at the initial position, and when the cam shaft rotates, the sliding blocks are driven to move along the guide rails at unequal intervals through the cam contour sections with different lifts, so that the suction cups of the first sliding block set move to the sampling inspection tray, and the suction cups of the sliding block units move to the corresponding product trays respectively. The device is simple in structure and more efficient in variable pitch adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell production, and in particular to an unequal distance pick-and-place device for a high-speed cell stacker. Background Art

[0002] During the cell production process, cut cells are typically arranged closely on a conveyor belt. The subsequent cell collection process requires the cells to be neatly stacked on pallets at a predetermined distance to facilitate subsequent sorting or packaging. Traditional cell collection methods typically rely on manual operation or simple mechanical handling devices, which are labor-intensive, inefficient, and prone to misalignment.

[0003] In order to solve this problem, a variety of automatic film collecting devices have been proposed in the prior art. For example, the Chinese patent application document with publication number CN221607122U discloses a variable pitch transport mechanism for battery cells. The transport mechanism adopts a two-stage variable pitch module (the first stage adjusts the overall suction cup spacing, and the second stage adjusts the unit suction cup spacing). The servo motor drives the bidirectional ball screw and the variable pitch screw to match the suction cup spacing with the tray, thereby realizing automatic transport and variable pitch placement of battery cells. Although this solution improves the degree of automation, it still has the following shortcomings: 1. Complex structure and high maintenance cost: The two-stage variable pitch mechanism involves multiple servo motors, screws and sliders. The mechanical structure is complex and easy to wear after long-term use, which affects the accuracy and has high maintenance costs. 2. Low efficiency of variable pitch adjustment: It is necessary to adjust the overall suction cup spacing first, and then adjust the unit suction cup spacing. The step-by-step operation extends the transport cycle, which is difficult to meet the production requirements of high-speed flow production lines. 3. Lack of random inspection function, unable to provide real-time feedback and adjust battery cell problems: Currently, random inspection still relies on manual intervention or additional configuration of robots; manual random inspection is inefficient and requires suspending the production line or setting up manual random inspection stations, which affects the production rhythm and makes it difficult to meet the needs of high-speed continuous production; robotic random inspection requires separate configuration of inspection robots, which not only increases hardware investment and maintenance complexity, but also takes up production line space. At the same time, inspection and handling are carried out in steps, which extends the production cycle and reduces overall efficiency. Summary of the Invention

[0004] The present invention provides an unequal distance pick-and-place device for a high-speed film collection machine, so as to solve the technical problems of the existing variable distance mechanism having a complex structure, low variable distance adjustment efficiency and lack of a random inspection function.

[0005] To solve the above problems, the present invention provides an unequal distance pick-and-place device for a high-speed film collection machine, which adopts the following technical solutions:

[0006] A non-uniform distance pick-and-place device for a high-speed wafer collection machine comprises a battery cell conveyor belt, a tray conveyor belt and a suction cup non-uniform distance mechanism, wherein the suction cup non-uniform distance mechanism sucks the battery cells on the battery cell conveyor belt and places them on the tray on the tray conveyor belt; the tray comprises a sampling tray and a product tray; the suction cup non-uniform distance mechanism comprises a frame, a slider group, a suction cup group and a cam shaft, the slider group is composed of a plurality of sliders, the suction cup group is composed of a plurality of suction cups, the cam shaft is provided with a plurality of cam profile segments, each cam profile segment corresponds to each tray; the cam shaft is arranged in the frame, and a guide rail is provided at the bottom of the frame accommodating cavity for the slider to slide; the slider is connected to the cam shaft through a cam follower, and the suction cup is fixedly connected to the bottom end of the slider; the slider group is divided into a first slider group and a second slider group, and the second slider group comprises a plurality of slider units independent of each other;

[0007] The suction cup group is in a clustered state at the initial position. When the camshaft rotates, the cam profile segments with different lifts drive the sliders to move unequally along the guide rail, so that the suction cups of the first slider group move to the sampling tray station, and the suction cups of each slider unit of the second slider move to the corresponding product tray station.

[0008] As a preferred technical solution of the present invention, the camshaft includes a first camshaft and a second camshaft. The sliders of the first slider group are connected to the first camshaft via a cam follower, and the sliders of the second slider group are connected to the second camshaft via a cam follower. Independent control of the first and second camshafts allows for adjustment of the motion trajectories of the different slider groups, allowing for rapid switching of the suction cup group between the inspection tray station and the product tray station, significantly improving cell handling efficiency to meet the demands of high-speed production lines.

[0009] As a preferred technical solution of the present invention, the first camshaft is positioned above the second camshaft, and a U-shaped clearance seat is provided between the slider of the first slider assembly and the cam follower to clear the second camshaft. Placing the first camshaft above the second camshaft creates a top-to-bottom layered camshaft arrangement, effectively utilizing vertical space and making the overall device structure more compact, reducing the equipment footprint. The U-shaped clearance seat effectively prevents motion interference between the upper and lower camshafts and the slider, improving the stability and safety of the device's operation.

[0010] As a preferred technical solution of the present invention, the guide rail includes a linear guide rail and a limit block, which is used to constrain the movement trajectory of the slider group, so that the slider group can maintain good dynamic performance during high-speed movement and meet the continuous and stable operation requirements of the film collecting machine in a high-beat production environment. By setting a linear guide rail as a guide component, the movement trajectory of the slider group is constrained with high precision, ensuring that the slider runs smoothly along the set path under the drive of the camshaft, thereby improving the positioning accuracy of the suction cup group during the process of taking and placing the battery cells. The setting of the limit block effectively prevents the slider from offsetting or derailing during high-speed operation, improves the stability of the device operation, and thus reduces the equipment failure rate caused by mechanical deviation.

[0011] As a preferred technical solution of the present invention, the first slider group is disposed at the front end of the second slider group, and the first slider group includes a slider. Placing the first slider group at the front end of the second slider group achieves an orderly arrangement of different functional modules and prioritizes the variable distance action for spot-checking battery cells.

[0012] As a preferred technical solution of the present invention, the second slider group includes 2-4 independent slider units. The second slider group is composed of 2-4 independent slider units, each of which can independently control the motion trajectory and action timing. This configuration enables the pick-and-place device to perform multiple operations simultaneously, significantly improving the equipment's operating efficiency. The independent slider units do not interfere with each other. If a slider fails or requires maintenance, the remaining sliders can continue to operate, avoiding production interruptions caused by complete machine shutdown. It also facilitates troubleshooting and repair, improving the reliability and safety of the system.

[0013] As a preferred technical solution of the present invention, the slider is provided with two symmetrical mounting members, located on either side of the frame width, through which the suction cup is fixedly connected to the slider. This symmetrical mounting member structure fully utilizes the space across the frame width while not affecting the layout of other functional components (such as the camshaft and guide rails), achieving a compact design and reducing the risk of interference between moving parts.

[0014] As a preferred technical solution of the present invention, the slider is equipped with two suction cups, which are vacuum or electromagnetic. The dual suction cup structure can complete the simultaneous pick-and-place operations of multiple battery cells within the same operation cycle, effectively shortening the working cycle and improving the overall operating efficiency. It is particularly suitable for the needs of high-capacity automated production lines.

[0015] As a preferred technical solution of the present invention, the spacing between each of the product trays is equal, and the spacing between the battery cells in the product trays is equal.

[0016] As a preferred technical solution of the present invention, the first and second camshafts are driven by separate servo motors, whose rotational speeds are synchronized with the speed of the cell conveyor belt. The two camshafts utilize independent drive systems. If one camshaft malfunctions or requires debugging, the other camshaft remains operational, facilitating rapid problem location and repair, reducing equipment downtime and improving system availability.

[0017] The beneficial effects are:

[0018] 1. Simpler structure: The unequal-pitch pick-and-place device uses a camshaft to drive a multi-slide group to simplify the structure, avoids the complex configuration of multiple servo motors, lead screws and slides in the traditional two-stage variable-pitch mechanism, and reduces the difficulty and cost of equipment maintenance.

[0019] 2. More efficient variable pitch adjustment (the camshaft adjusts the suction cup spacing at one time): The camshaft uses multiple cam profile segments with different lifts to synchronously drive the slider group to move, enabling rapid adjustment of the suction cup group to different spacing requirements, adapting to the different spacing requirements of random inspection pallets and product pallets, significantly improving handling efficiency, and meeting the requirements of high-speed assembly line production.

[0020] 3. Functional integration: Traditional spot checks are performed after the fact. When defects are discovered, they may have already caused batch defects. It is impossible to remove problematic cells or adjust process parameters in real time. To solve this problem, the present invention integrates unequal distance adjustment, pick-and-place, and spot check functions into one. The spot check operation can be completed without the need for additional detection robots or suspension of the production line, reducing manual intervention and meeting the needs of high-speed automated production. It also saves hardware investment and space occupation, while reducing the production cycle and improving overall production efficiency.

[0021] 4. The cooperation between the guide rail and the cam follower ensures that the slider runs smoothly and is positioned accurately, thereby ensuring the stability and placement accuracy of the battery cells during transportation, and helping to reduce the occurrence of problems such as misalignment and breakage.

[0022] 5. The device can be quickly adapted to pallets of different specifications by replacing camshafts with different cam profile segments, and the device has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of this embodiment;

[0024] Figure 2 It is a structural diagram of the suction cup unequal distance mechanism and the three-axis manipulator;

[0025] Figure 3 for Figure 2 The main view;

[0026] Figure 4This is a structural diagram of the suction cup unequal distance mechanism (without suction cup);

[0027] Figure 5 for Figure 4 Bottom view of

[0028] Figure 6 Schematic diagram of the structure of the battery cell conveyor belt and the pallet conveyor belt.

[0029] Description of reference numerals:

[0030] 1. Suction cup unequal distance mechanism; 11. Rack; 12. Slider; 13. Suction cup; 15. Mounting parts; 2. Three-axis manipulator; 3. Battery cell conveyor belt; 4. Pallet conveyor belt; 41. Product pallet; 42. Inspection pallet; 5. Battery cell. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0032] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0033] The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0034] Example 1:

[0035] like Figure 1-3The illustrated device comprises an unequal-distance pick-and-place device for a high-speed wafer collection machine, comprising: an unequal-distance suction cup mechanism 1, a three-axis manipulator 2, a cell conveyor belt 3, and a tray conveyor belt 4; the three-axis manipulator 2 is connected and fixed to the top of the equipment frame via a high-rigidity gantry structure, the unequal-distance suction cup mechanism 1 is arranged below the Z-axis end effector of the three-axis manipulator 2 and suspended above the cell conveyor belt 3; the cell conveyor belt 3 is used to convey cells 5 to be processed, and tray conveyor belts 4 are symmetrically arranged on both sides of the cell conveyor belt 3, with the three being arranged in parallel; the unequal-distance suction cup mechanism 1 is driven by the three-axis manipulator 2 and can achieve precise reciprocating linear motion in the X / Y / Z three-dimensional space, with its motion envelope completely covering the working area of the cell conveyor belt 3 and the tray conveyor belts 4 on both sides; the unequal-distance suction cup mechanism 1 cooperates with the three-axis manipulator 2 to first absorb the cell 5 on the cell conveyor belt 3 through the suction cup group, and then adjust the position of each suction cup of the suction cup group, that is, adjust the spacing between each cell 5, and then place the cell 5 into the tray on the tray conveyor belt 4. The trays include a sampling tray 42 and a product tray 41. In the following description, the forward direction of the battery cell conveyor belt 3 is regarded as the front end.

[0036] like Figure 3-5 As shown, the suction cup unequal spacing mechanism 1 includes a frame 11, a slider assembly, a suction cup assembly, and a camshaft. The slider assembly comprises multiple sliders 12, and the suction cup assembly comprises multiple suction cups 13. The camshaft's outer surface is provided with multiple cam profile segments, each corresponding to a respective tray. The camshaft is housed within the frame 11. A guide rail is provided at the bottom of the housing cavity of the frame 11 for the sliding movement of the slider 12, providing a position-limiting guide for the movement of the slider 12. The slider 12 is connected to the camshaft via a cam follower, and a suction cup is fixedly attached to the bottom end of the slider 12. The camshaft is driven by a servo motor.

[0037] The guide rails consist of linear guides and stoppers, which constrain the movement of the slider assembly. The linear guides are located at the bottom of the housing cavity of the frame 11. Two stoppers are provided, one on each side of the linear guides and arranged parallel to them. The guide rails linearly guide the slider 12, ensuring accurate movement and reducing the effects of lateral forces on the camshaft.

[0038] The slider group is divided into a first slider group and a second slider group. The first slider group is located at the front end of the second slider group. The second slider group includes a plurality of slider units that are independent of each other. In this embodiment, the first slider group is provided with only one slider 12, and the second slider group is divided into four slider units. Figure 6 As shown, the device can transport the battery cells 5 on one sampling tray 42 and four product trays 41 at a time, and the distance between the sampling tray 42 and the product tray 41 is greater than the distance between the product trays 41. Figure 4 and 5As shown, two symmetrical mounting members 15 are provided on the slider 12. The mounting members 15 are located outside the frame 11 and are provided on both sides of the width direction of the frame 11. The mounting members 15 are used to rigidly connect with the suction cups 13, and one mounting member 15 corresponds to one suction cup 13. The number of suction cups 13 in the first slider group matches the number of battery cells 5 that can be accommodated on the sampling tray 42, and the number of suction cups 13 in each slider unit of the second slider group matches the number of battery cells 5 that can be accommodated on the corresponding product tray 41. The suction cup group is in an aggregated state in the initial position. When the servo motor drives the camshaft to rotate, the cam profile segments with different lifts drive each slider 12 to move unequally along the guide rail, so that the suction cups 13 of the first slider group move to the sampling tray 42 station, and the suction cups 13 of each slider unit of the second slider group move to the corresponding product tray 41 station.

[0039] Of course, in other embodiments, the first slider group may also be provided with multiple sliders 12, and the second slider group may be divided into two, three, five, six or even more slider units. The slider 12 may also be provided with one mounting member 15 or three, four or even more mounting members 15.

[0040] Preferably, the suction cup 13 can be a vacuum suction cup or an electromagnetic suction cup. The suction cup 13 is rigidly fixed to the bottom end of the slider 12 via a flange or a quick-change interface and moves synchronously with the slider 12. In this embodiment, the suction cup 13 is a vacuum suction cup, and each suction cup 13 is independently adsorbed and released via an independent air circuit control system. Of course, in other embodiments, the suction cup units corresponding to each slider unit of the second slider group can share a common air circuit control system, and the suction cups 13 of each suction cup unit can be collectively adsorbed and released via a single air circuit control system.

[0041] The camshaft includes a first camshaft and a second camshaft, with the first camshaft being arranged above the second camshaft. The slider 12 of the first slider group is connected to the first camshaft via a cam follower (i.e., a cam bearing follower). To avoid the second camshaft, a U-shaped avoidance seat is provided between the slider 12 of the first slider group and the cam follower. The slider 12 of the second slider group is connected to the second camshaft via a cam follower, and each slider 12 of the second slider group maintains synchronous following. The first camshaft and the second camshaft are respectively connected to the first servo motor and the second servo motor. Of course, in other embodiments, the first camshaft can also be arranged on the side of the second camshaft, and the avoidance seat can also be other shapes, such as L-shaped, arc-shaped, etc.

[0042] Each cam profile segment is composed of multiple unequally spaced curved lines, each corresponding to the motion curve of a different slider 12. A cam follower slides along these curved lines, enabling precise movement within them. The camshaft's rotation drives the curved lines, pushing the cam follower, converting circular motion into linear displacement of the slider 12. To facilitate the addition or removal of sliders 12 according to production line requirements, the camshaft is designed as a modular assembly, connected via keyways or flanges.

[0043] Servo motors (i.e., first and second servo motors) serve as power sources, driving the corresponding camshafts through couplings or synchronous belts to achieve precise speed and position control. The servo motors drive the camshafts, and the lift changes of the cam profiles drive the slider 12 to varying displacements. The servo motors use encoder feedback to adjust their speed and stop position in real time, ensuring synchronous pitch changes for each suction cup 13 in the suction cup assembly. The servo motors dynamically adjust the camshaft speed and stop position according to program instructions, enabling adaptive adjustment of the suction cup assembly spacing to accommodate varying operating conditions.

[0044] Working principle:

[0045] The three-axis manipulator 2 drives the suction cup unequal distance mechanism 1 to perform periodic movement between the battery cell conveyor belt 3 and the pallet conveyor belt 4 to move the battery cells 5 from the battery cell conveyor belt 3 to the pallet of the pallet conveyor belt 4 until the battery cells 5 on the pallet are stacked. The pallet conveyor belt 4 drives the pallet with the stacked battery cells 5 to be transported to the next process.

[0046] The three-axis manipulator 2 precisely controls the suction cup unequal distance mechanism 1 through the servo drive system to perform periodic pick-and-place operations. The specific operation cycle is as follows:

[0047] 1. Cell removal stage: Driven by the XYZ three-axis manipulator 2, the suction cup unequal distance mechanism 1 moves along the negative direction of the Z axis to the preset cell removal height; the vacuum adsorption system is activated, and the suction cup group forms a stable negative pressure contact with the cell 5 on the cell conveyor belt 3; after the adsorption is completed, the Z axis performs a lifting action to a safe height;

[0048] 2. Pitch adjustment stage: The servo motor starts, driving the first camshaft (controlling the first slider group suction cups 13) and the second camshaft (controlling the second slider group suction cups 13) to rotate synchronously. At this time, the suction cups 13 are separated from the aggregated state to unequal distances.

[0049] The first slider group suction cup 13 is adjusted: the cam profile segment of the first camshaft pushes the first slider group (front slider 12) to move along the guide rail to the target position;

[0050] Adjustment of the suction cups 13 of the second slider group: The multi-segment cam profile of the second camshaft drives each slider unit of the second slider group through a curved profile line, so that the spacing of the suction cups 13 between the slider units (i.e., the spacing of the product trays 41) and the spacing of the suction cups 13 within each slider unit are adjusted from 0 mm to the target value;

[0051] 3. Sheet placement stage: The three-axis robot 2 moves the suction cup group after the pitch is changed to the top of the target tray, and the Z axis is lowered to the sheet placement height; the vacuum system is closed, and the battery cell 5 falls accurately into the preset position of the tray under the action of gravity (the spacing has been aligned by the pitch change), completing the sheet placement of the battery cell 5; Figure 6 As shown, this embodiment satisfies the requirement of completing the transportation of battery cells 5 on the sampling tray 42 and four product trays 41 at one time (when battery cells 5 need to be sampled, the battery cells 5 on the sampling tray 42 are used for quality inspection); thereafter, the Z axis is lifted, the cam shaft of the suction cup unequal distance mechanism 1 rotates in the opposite direction, and the slider 12 returns to its initial compact state under the action of the cam return stroke, preparing for the next battery cell 5 removal operation.

[0052] The unequal-distance pick-and-place device operates periodically according to the aforementioned process. With each completed cycle, a counter automatically increments. When the preset number of stacked layers of cells 5 is reached, a pallet conveyor signal is triggered. Completed product pallets 41 are transported by the pallet conveyor belt 4 to the next process. Empty pallets are automatically replaced to ensure continuous production. The system automatically updates pallet position information to prepare for the next round of operations.

[0053] The unequal distance pick-and-place device can monitor the changes in the spacing between the trays in real time through a PLC or motion controller, dynamically modify the camshaft stop angle, and adapt to different specifications of battery cells 5.

[0054] Example 2:

[0055] The main difference between it and Example 1 is:

[0056] In this embodiment, only one camshaft is provided, and at least two cam profile segments with different lifts are provided on the camshaft. The first slider group engages with the first cam profile segment of the camshaft via a cam follower, and the second slider group engages with the second cam profile segment of the camshaft via a cam follower. Of course, in other embodiments, the camshaft may also be provided with three cam profile segments with different lifts. The first slider group engages with the first cam profile segment of the camshaft via a cam follower, and the second slider group engages with the second and third cam profile segments of the camshaft via a cam follower.

[0057] The suction cup 13 of the first slider group is integrated with a sensor for detecting whether there is a quality problem with the battery cell 5 workpiece.

[0058] In other embodiments, to implement online spot checks, an optical detection sensor (such as an infrared or laser thickness gauge) is integrated on the suction cup 13 to directly measure the thickness and surface defects of the battery cell 5. If a quality problem with the battery cell 5 is detected, the battery cell 5 removal and placement operation is suspended.

[0059] More preferably, an optical detection sensor (such as an infrared or laser thickness gauge) is integrated on the suction cup 13. During the transportation process, the detection data is uploaded to the MES system in real time. If defective products are found, the sorting mechanism is automatically triggered (such as moving the defective products to the waste box through a three-axis robot).

[0060] In this embodiment, the suction cup 13 and the mounting member 15 are magnetically locked and pneumatically locked, allowing for quick replacement of suction cups 13 of different specifications. For example, when switching production lines for cells 5 of different sizes, it is not necessary to replace the entire suction cup unequal spacing mechanism 1; only the suction cup 13 is required. This reduces equipment downtime and improves the flexible production capacity of the production line.

[0061] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "upper", "lower", "front", "backward" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0062] In addition, in the description of this specification, “a plurality of” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A non-uniform pick-and-place device for a high-speed wafer collection machine, comprising a cell conveyor belt, a tray conveyor belt, and a suction cup non-uniform distance mechanism, wherein the suction cup non-uniform distance mechanism absorbs the cell on the cell conveyor belt and places it on a tray on the tray conveyor belt; characterized in that: The trays include sampling trays and product trays; the suction cup unequal distance mechanism includes a frame, a slider group, a suction cup group and a camshaft, the slider group is composed of a plurality of sliders, the suction cup group is composed of a plurality of suction cups, the camshaft is provided with a plurality of cam profile segments, each cam profile segment corresponds to each tray; the camshaft is arranged in the frame, and a guide rail is provided at the bottom of the frame accommodating cavity for the slider to slide; the slider is connected to the camshaft through a cam follower, and the suction cup is fixedly connected to the bottom end of the slider; the slider group is divided into a first slider group and a second slider group, and the second slider group includes a plurality of slider units independent of each other; The suction cup group is in a clustered state at the initial position. When the camshaft rotates, the cam profile segments with different lifts drive the sliders to move unequally along the guide rail, so that the suction cups of the first slider group move to the sampling tray station, and the suction cups of each slider unit of the second slider move to the corresponding product tray station.

2. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 1, characterized in that: The camshaft includes a first camshaft and a second camshaft. The slider of the first slider group is connected to the first camshaft through a cam follower. The slider of the second slider group is connected to the second camshaft through a cam follower.

3. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 2, characterized in that: The first camshaft is arranged above the second camshaft, and an avoidance seat is arranged between the slider of the first slider group and the cam follower to avoid the second camshaft, and the avoidance seat is arranged in a U shape.

4. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 3, characterized in that: The guide rail includes a linear guide rail and a limit block, which is used to constrain the movement trajectory of the slider group.

5. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 4, characterized in that: The first slider group is arranged at the front end of the second slider group, and the first slider group is provided with one slider.

6. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 5, characterized in that: The second slider group includes 2-4 slider units that are independent of each other.

7. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 6, characterized in that: The slider is provided with two symmetrical mounting pieces, the mounting pieces are located on both sides in the width direction of the frame, and the suction cup is fixedly connected to the slider through the mounting pieces.

8. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 7, characterized in that: The slider is provided with two suction cups, which are vacuum suction cups or electromagnetic suction cups.

9. The unequal distance pick-and-place device for a high-speed film collection machine according to claim 1, characterized in that: The spacing between each product tray is equal, and the spacing between battery cells in the product tray is equal.

10. The unequal distance pick-and-place device for a high-speed film collection machine according to any one of claims 2 to 8, characterized in that: The first camshaft and the second camshaft are driven by different servo motors respectively, and the rotation speed of the servo motors is synchronized with the speed of the battery cell conveyor belt.

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