Labeling device and electrode forming equipment

Abstract

This application discloses a labeling device and electrode forming equipment. The labeling device includes a base, a pressing mechanism, and a label dispensing mechanism. The pressing mechanism includes a bracket, an elastic element, an adjusting element, and a pressure roller assembly. The bracket is mounted on the base, and both ends of the elastic element are connected to the bracket and the pressure roller assembly, respectively. The bracket has mounting holes, and one end of the adjusting element movably passes through the mounting holes and connects to the pressure roller assembly. The label dispensing mechanism is mounted on the base and is used to feed labels to the pressure roller assembly. This labeling device has the ability to adjust the pressing force of the pressure roller assembly by moving the adjusting element within the mounting holes, thereby allowing the labels to adhere more tightly to the electrode and reducing the risk of labels falling off due to poor adhesion.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a labeling device and electrode forming equipment. Background Technology

[0002] In the manufacturing of battery devices, specifically during the electrode fabrication process, a labeling device is used to attach labels to the electrodes for easy identification later. However, in actual production, there are instances where electrodes requiring labels are not labeled. Utility Model Content

[0003] The main purpose of this application is to provide a labeling device and electrode forming equipment, which aims to at least improve the technical problem of missing labels in the labeling device.

[0004] To achieve the above objectives, according to some embodiments of this application, this application provides a labeling device, including a base, a pressing mechanism, and a label dispensing mechanism; the pressing mechanism includes a bracket, an elastic element, an adjusting element, and a pressure roller assembly; the bracket is mounted on the base; both ends of the elastic element are connected to the bracket and the pressure roller assembly respectively; the bracket is provided with a mounting hole; one end of the adjusting element movably passes through the mounting hole and is connected to the pressure roller assembly; the label dispensing mechanism is mounted on the base and is used to feed labels to the pressure roller assembly.

[0005] By setting mounting holes on the bracket, and movably mounting an adjusting component on the mounting holes, with one end of the adjusting component connected to the pressure roller assembly, the adjusting component can move within the mounting holes to drive the pressure roller assembly to move, thereby adjusting the pressure force of the pressure roller assembly to attach the label to the electrode sheet, so that the label can be attached to the electrode sheet more tightly, reducing the risk of the electrode sheet falling off due to poor adhesion.

[0006] In some embodiments, the adjusting member includes an adjusting rod threadedly connected to the mounting hole, such that the adjusting rod can move along its own central axis when rotating within the mounting hole, thereby driving the pressure roller assembly to move.

[0007] By setting the adjusting rod to be threadedly connected to the mounting hole, the adjusting rod can be rotated to move along its own central axis, thereby driving the pressure roller assembly to move. The threaded connection makes the connection more secure and improves the stability of the pressing mechanism.

[0008] In some embodiments, the mounting hole is provided with an internal thread section, and the outer wall surface of the adjusting rod is provided with an external thread section. The length of the external thread section along the central axis of the adjusting rod is greater than the length of the internal thread section along the central axis of the adjusting rod.

[0009] By setting an internal thread section in the mounting hole and an external thread section on the adjusting rod, and setting the length of the external thread section to be greater than the length of the internal thread section, the adjusting rod can always maintain a threaded connection with the mounting hole during movement, ensuring that the adjusting rod is stably installed on the bracket.

[0010] In some embodiments, the elastic element includes a guide rod and a spring sleeved on the outer periphery of the guide rod. The bracket is provided with a guide hole. One end of the guide rod is connected to the pressure roller assembly, and the other end of the guide rod passes through the guide hole to be slidably connected to the bracket. The central axis of the guide rod is arranged parallel to the central axis of the adjusting rod.

[0011] By incorporating elastic elements, including a guide rod and a spring sleeved around the outer periphery of the guide rod, the guide rod is slidably installed in the guide hole of the bracket, thus providing support and guidance.

[0012] In some embodiments, the number of elastic elements is two, and the two elastic elements are symmetrically arranged on both sides of the adjusting rod.

[0013] By setting two elastic elements symmetrically, the pressure roller assembly is subjected to more uniform force, and the label adheres more evenly to the electrode sheet when applying the label.

[0014] In some embodiments, the adjusting member further includes a limiting ring sleeved on the outer periphery of the adjusting rod, the limiting ring being disposed at the end of the adjusting rod away from the pressure roller assembly, and the limiting ring being used to abut against and limit the support.

[0015] By setting a limit ring for contact with the bracket to limit movement, the risk of the pressure roller assembly damaging the electrode sheet can be reduced.

[0016] In some embodiments, the bracket includes a fixed plate and a mounting plate connected to each other, the fixed plate being connected to the base, and the mounting plate being provided with the mounting hole; the pressure roller assembly includes a connecting plate and a pressure roller mounted on the connecting plate, both ends of the elastic member being connected to the mounting plate and the connecting plate respectively, and one end of the adjusting member being movably inserted through the mounting hole and connected to the connecting plate.

[0017] By setting up a bracket including a fixed plate and a mounting plate, and a pressure roller assembly including a connecting plate and a pressure roller, the two ends of the elastic element are connected to the mounting plate and the connecting plate respectively. Both the mounting plate and the connecting plate are plate-shaped, which makes it easier to install the elastic element. Furthermore, by driving the connecting plate to move and then driving the pressure roller to move, the movement position of the pressure roller can be calculated more accurately.

[0018] In some embodiments, the elastic element includes a guide rod and a spring sleeved on the outer periphery of the guide rod, the bracket includes an abutment ring disposed on the side of the mounting plate facing the elastic element, the abutment ring is sleeved on the outer periphery of the guide rod, the two ends of the spring are respectively connected to the abutment ring and the connecting plate, and a pressure sensor is disposed on the abutment ring.

[0019] By installing a pressure sensor, the pressure of the pressure roller can be monitored in real time, allowing for timely adjustments and preventing defects that may be caused by excessive or insufficient pressure.

[0020] In some embodiments, the connecting plate includes a first sub-plate and a second sub-plate connected to each other. The first sub-plate is arranged parallel to the mounting plate. The pressure roller is rotatably mounted on the second sub-plate. Both ends of the elastic member are respectively connected to the mounting plate and the first sub-plate. One end of the adjusting member is movably inserted through the mounting hole and connected to the first sub-plate.

[0021] By setting the first sub-plate parallel to the mounting plate, and connecting the two ends of the elastic element to the mounting plate and the first sub-plate respectively, the pressure roller is less likely to tilt during movement.

[0022] In some embodiments, the dispensing mechanism includes a rotatably mounted reel on the base, and the reel is provided with a positioning pin.

[0023] By setting positioning pins on the roll, a foolproof mechanism can be established, reducing the risk of labels being rolled up backwards.

[0024] In some embodiments, the dispensing mechanism further includes a dispensing nozzle, which includes a body and a slot disposed on the body, the slots being disposed on opposite sides of the body along the conveying direction of the label.

[0025] By setting slots on both sides of the label nozzle, the risk of label slippage can be reduced, thereby reducing the risk of label misalignment on the electrode.

[0026] In some embodiments, the labeling device further includes a through-beam photoelectric sensor disposed on the transport path of the label, the through-beam photoelectric sensor being used to detect the distance the label has moved.

[0027] By setting up a photoelectric sensor, the distance the label has moved can be confirmed, reducing the risk of labeling errors or inaccurate labeling due to insufficient label movement.

[0028] According to some embodiments of this application, this application provides an electrode forming apparatus, the electrode forming apparatus including a conveying roller and the labeling device described above, the conveying roller being used to convey the electrode sheet, and the pressure roller assembly being used to attach the label to the electrode sheet.

[0029] By setting up conveyor rollers to transport the electrode sheets, it is easy to attach labels to the electrode sheets through the pressure roller assembly, thus realizing automatic label attachment on the electrode sheets.

[0030] In some embodiments, the labeling device further includes a first label detection sensor, which is mounted on the base and positioned near the pressure roller assembly; the electrode forming equipment further includes a second label detection sensor, which is spaced apart from the first label detection sensor along the conveying direction of the electrode.

[0031] By setting up a first label detection sensor and a second label detection sensor, the risk of electrodes with dropped labels being transported to the next process during electrode transport can be reduced.

[0032] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural schematic diagram of a labeling device according to some embodiments of this application;

[0035] Figure 2 This is a schematic diagram of the labeling device according to some embodiments of this application from one perspective;

[0036] Figure 3 This is a three-dimensional structural schematic diagram of the pressing mechanism of the labeling device in some embodiments of this application;

[0037] Figure 4 This is a three-dimensional structural schematic diagram of the pressing mechanism of the labeling device in some embodiments of this application from another perspective;

[0038] Figure 5 This is another perspective structural schematic diagram of the labeling device according to some embodiments of this application;

[0039] Figure 6 This is a partial structural schematic diagram of the labeling device according to some embodiments of this application;

[0040] Figure 7 This is a schematic diagram of the structure of an electrode forming apparatus according to some embodiments of this application.

[0041] Explanation of icon numbers:

[0042] 1000. Electrode forming equipment;

[0043] 100. Labeling device; 200. Conveyor roller; 300. Second label detection sensor; 400. Electrode;

[0044] 500. Label tape; 510. Label; 520. Membrane;

[0045] 10. Clamping mechanism; 20. Driving component; 30. Base; 40. Reel; 50. Through-beam photoelectric sensor; 60. First tag detection sensor; 70. Recycling shaft; 80. Guide wheel;

[0046] 11. Bracket; 111. Fixing plate; 112. Mounting plate; 113. Abutment ring; 12. Elastic element; 121. Guide rod; 122. Spring; 13. Adjusting element; 131. Adjusting rod; 132. Limiting ring; 14. Pressure roller assembly; 141. Pressure roller; 142. Connecting plate; 1421. First sub-plate; 1422. Second sub-plate; 21. Nozzle; 211. Slot; 41. Positioning pin.

[0047] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0049] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0050] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are feasible to those skilled in the art. If a combination of technical solutions contradicts each other or cannot be implemented, it should be considered that such a combination does not exist and is not within the scope of protection claimed in this application. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0053] The descriptions of directions such as "up", "down", "front", "back", "left", and "right" in this application are based on the directions shown in the figure and are only used to explain the relative positional relationship between the components in the posture shown in the figure. If the specific posture changes, the directional indication will also change accordingly.

[0054] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0055] In the manufacturing of battery devices, specifically in the production of battery electrodes, the electrodes undergo multiple processes including coating, cold pressing, die-cutting, slitting, and offline adhesive bonding. Furthermore, in today's digitalized and intelligent lithium-ion battery manufacturing industry, electrode production efficiency is increasingly high. During electrode production, manufacturing defects are unavoidable, such as wrinkles, damage, dark marks, gaps, and coating defects. If defective electrodes are not effectively removed, they may be wound into cells and ultimately used to make individual battery cells for battery devices, causing performance problems in the battery devices.

[0056] After careful consideration, the applicant discovered that to reject substandard electrode sheets, defective sheets could be labeled first. During the bare cell forming process, labeled electrode sheets would be rejected based on whether they were labeled. The identification of defective electrode sheets could be done using a CCD camera (CCD Charge Coupled Cevice, a digital camera with a charge-coupled device image sensor).

[0057] However, there are currently instances of missing labels. Those involved believe this is due to the CCD camera's inability to properly identify defective electrodes during the electrode identification process. Therefore, researchers have been dedicated to improving the accuracy of CCD camera identification. Other researchers believe the issue stems from the label's travel distance; specifically, the label may not have moved to the intended position when the defective electrode has reached its destination, preventing it from being attached. These researchers are therefore focusing on understanding the relationship between the label's travel distance and the electrode's transport speed and direction.

[0058] However, after careful investigation, the applicant discovered that the cause of the missing labels was not, as those skilled in the art have consistently believed, inaccurate CCD camera recognition or label travel issues. In fact, the vast majority of cases where defective electrodes lack labels in subsequent processes are not due to labels not being attached to the defective electrodes, but rather because, after being attached, the labels fell off during electrode movement due to loose adhesion. In subsequent processes, the absence of labels on defective electrodes is then interpreted as a sign of missing labels.

[0059] Therefore, the applicant has a deeper understanding of the issue of missing labels than those skilled in the art. Missing labels are only a superficial problem. To solve this technical problem, the essence is to solve the problem of labels not adhering tightly to the electrode sheets.

[0060] To address this, the applicant provides a novel structural design for a labeling device. The device includes a base, a clamping mechanism, and a label dispensing mechanism. The clamping mechanism comprises a support, an elastic element, an adjusting element, and a pressure roller assembly. The support is mounted on the base. Both ends of the elastic element are connected to the support and the pressure roller assembly, respectively. The support has mounting holes. One end of the adjusting element movably passes through the mounting holes and connects to the pressure roller assembly. The label dispensing mechanism is mounted on the base and is used to feed labels to the pressure roller assembly. This labeling device allows the adjusting element to move within the mounting holes, thereby moving the pressure roller assembly and adjusting the clamping force of the pressure roller assembly to adhere the label to the electrode sheet. This results in a more secure adhesion of the label to the electrode sheet, reducing the risk of the label falling off due to poor adhesion.

[0061] A battery device may include multiple battery cells, which can be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells are connected in both series and parallel configurations. Multiple battery cells can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of the battery cells is housed within a casing. Alternatively, the battery device can consist of multiple battery cells first connected in series, parallel, or a combination thereof to form battery modules, and then these modules are connected in series, parallel, or a combination thereof to form a whole, which is also housed within a casing. The battery device may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells.

[0062] Each battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell can be cylindrical, flat, cuboid, or other shapes.

[0063] A single battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of electrode plates and a separator. The electrode plates include positive electrode plates and negative electrode plates.

[0064] A single battery cell mainly relies on the movement of metal ions between the positive and negative electrode plates to function.

[0065] The positive electrode sheet includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. The current collector without the positive active material layer protrudes from the current collector with the positive active material layer. The current collectors without the positive active material layer are stacked together to form the positive electrode tab.

[0066] Taking lithium-ion batteries as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc.

[0067] The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The current collector without the negative electrode active material layer protrudes from the current collector with the negative electrode active material layer. The current collectors without the negative electrode active material layer are stacked together to form the negative electrode tab.

[0068] The negative electrode current collector can be made of copper, and the negative electrode active material can be carbon or silicon, etc.

[0069] The material of the separator can be PP (polypropylene) or PE (polyethylene), etc.

[0070] Reference Figures 1-3 According to some embodiments of this application, this application provides a labeling device 100, including a base 30, a pressing mechanism 10, and a label dispensing mechanism; the pressing mechanism 10 includes a bracket 11, an elastic element 12, an adjusting element 13, and a pressure roller assembly 14. The bracket 11 is mounted on the base 30, and both ends of the elastic element 12 are respectively connected to the bracket 11 and the pressure roller assembly 14. The bracket 11 is provided with a mounting hole, and one end of the adjusting element 13 is movably inserted through the mounting hole and connected to the pressure roller assembly 14; the label dispensing mechanism is mounted on the base 30 and is used to feed labels 510 to the pressure roller assembly 14.

[0071] It should be noted that the labeling device 100 is used to affix labels 510 to the electrode sheet 400. Specifically, in this application, the labeling device 100 includes a controller and a drive unit 20, a reel 40, a collection shaft 70, and a guide wheel 80 mounted on the base 30. The reel 40 is used to hold the label tape 500, which has a film 520 and the label 510 to be affixed. The collection shaft 70 is used to collect the remaining film 520 after the label 510 has been affixed. The guide wheel 80 serves to guide and tension the film. The drive unit 20 can be connected to the reel 40 to drive the reel 40 to rotate and supply the label 510. The drive unit 20 can also be connected to the collection shaft 70 to drive the collection shaft 70 to rotate and collect the film 520. Of course, there can also be two drive units 20, which are respectively connected to the collection shaft 70 and the reel 40 to provide power for the rotation of the collection shaft 70 and the reel 40. In addition, a CCD camera can be set. The CCD camera can be set at the front end of the labeling device 100 or in the previous process. The CCD camera is used to detect the electrode 400 and identify the defective electrode 400 and send it to the controller of the labeling device 100. The controller controls the pressing mechanism 10 and the label dispensing mechanism to attach the label 510 to the defective electrode 400, so that the defective electrode 400 can be identified and removed later according to whether the label 510 is attached.

[0072] The embodiments of this application are particularly applicable to the labeling 510 action on the electrode 400. The pressing mechanism 10 includes a bracket 11, an elastic element 12, an adjusting element 13, and a pressure roller assembly 14. The bracket 11 is mounted on the base 30 and serves to fix and provide mounting support for other components. The pressure roller assembly 14 is used to attach the label 510 conveyed by the label dispensing mechanism onto the electrode 400. The two ends of the elastic element 12 are respectively connected to the bracket 11 and the pressure roller assembly 14. This connection can be abutment. The elastic element 12 can be a spring 122, an elastic rubber component, or a silicone component, etc. Taking the elastic element 12 as a spring 122 as an example, the spring 122 is in a compressed state. The compressed state of the spring 122 will give the pressure roller assembly 14 a pressing force towards the label 510, so that the pressure roller assembly 14 attaches the label 510 onto the electrode 400. Generally, by selecting a spring 122 with a suitable elastic modulus or setting a suitable compression amount for the spring 122, the force provided by the spring 122 can be sufficient to ensure that the label 510 adheres tightly to the electrode 400. However, during use, installation errors, electrode 400 thickness errors, or movement of various components during use are unavoidable, which may cause the label 510 to not adhere tightly to the electrode 400, resulting in the label 510 falling off during subsequent electrode 400 conveying.

[0073] To address this, the applicant provides mounting holes on the bracket 11, with one end of an adjusting member 13 movably passing through the mounting hole and connected to the pressure roller assembly 14. This movable passing means that the adjusting member 13 can be mounted on the mounting hole, but can also move along the central axis of the mounting hole. When the adjusting member 13 is on the adjusting rod 131, the adjusting rod 131 can move along its own central axis. When the adjusting member 13 moves, it drives the pressure roller assembly 14 connected to it to move together. When the pressure roller assembly 14 moves relatively far from the label dispensing mechanism or the electrode 400, the clamping force is relatively small, which may result in the label 510 not adhering tightly to the electrode 400, causing the label 510 to fall off later. When the pressure roller assembly 14 moves relatively close to the label dispensing mechanism or the electrode 400, the clamping force is relatively large, allowing the label 510 to adhere more tightly to the electrode 400, reducing the risk of the label 510 falling off during the subsequent electrode 400 conveying process. In other words, the adjusting member 13 in this application can adjust the position of the pressure roller assembly 14 according to actual needs, thereby making the label 510 more tightly attached to the electrode 400. At the same time, when the adjusting member 13 moves to drive the pressure roller assembly 14 to move, it will cause the elastic member 12 to compress or extend, thereby adjusting the clamping force of the elastic member 12 on the pressure roller assembly 14.

[0074] By setting an installation hole on the bracket 11, and movably setting an adjusting member 13 on the installation hole, with one end of the adjusting member 13 connected to the pressure roller assembly 14, the adjusting member 13 can move within the installation hole to drive the pressure roller assembly 14 to move, thereby adjusting the pressing force of the pressure roller assembly 14 to attach the label 510 to the electrode 400, so that the label 510 can be attached more tightly to the electrode 400, reducing the risk of the label 510 falling off due to poor adhesion.

[0075] Reference Figure 3 and Figure 4 In some embodiments, the adjusting member 13 includes an adjusting rod 131, which is threadedly connected to the mounting hole so that the adjusting rod 131 can move along its own central axis when rotating in the mounting hole, thereby driving the pressure roller assembly 14 to move.

[0076] Regarding specific embodiments of the adjusting component 13, it may include an adjusting rod 131. The adjusting rod 131 is rod-shaped, specifically cylindrical. It could be configured so that the adjusting rod 131 can directly drive the pressure roller assembly 14 to move through stretching; however, this would require an additional fixing structure for securing the adjusting rod 131. In the embodiments of this application, a screw-like form is used, with the adjusting rod 131 threadedly connected to the mounting hole. Since the bracket 11 is fixed, when the adjusting rod 131 rotates, it simultaneously moves along its own central axis, thus driving the pressure roller assembly 14 connected to it to move together. The threaded connection between the adjusting rod 131 and the mounting hole ensures a secure connection when the position of the pressure roller assembly 14 does not need to be adjusted, preventing relative movement.

[0077] By setting the adjusting rod 131 to be threadedly connected to the mounting hole, the adjusting rod 131 can be rotated to move along its own central axis, thereby driving the pressure roller assembly 14 to move. The threaded connection makes the connection more secure and improves the stability of the pressing mechanism 10.

[0078] In some embodiments, the mounting hole is provided with an internal thread section, and the outer wall surface of the adjusting rod 131 is provided with an external thread section. The length of the external thread section along the central axis of the adjusting rod 131 is greater than the length of the internal thread section along the central axis of the adjusting rod 131.

[0079] Both the external thread section and the internal thread section are threaded and can be screwed together. The adjusting rod 131 does not need to be entirely externally threaded; only the part that may be threaded to the internal thread section needs to be threaded. Specifically, the internal thread section is set in the mounting hole, and the length of the external thread section needs to be greater than that of the internal thread section. For this reason, the adjusting rod 131 will move along its central axis. It is necessary to ensure that the adjusting rod 131 can always be connected to the thread section in the mounting hole during the movement.

[0080] By setting an internal thread section in the mounting hole and an external thread section on the adjusting rod 131, and setting the length of the external thread section to be greater than the length of the internal thread section, the adjusting rod 131 can always maintain a threaded connection with the mounting hole during its movement, ensuring that the adjusting rod 131 is securely installed on the bracket 11.

[0081] Reference Figure 3 and Figure 4 In some embodiments, the elastic element 12 includes a guide rod 121 and a spring 122 sleeved on the outer periphery of the guide rod 121. The bracket 11 is provided with a guide hole. One end of the guide rod 121 is connected to the pressure roller assembly 14, and the other end of the guide rod 121 passes through the guide hole to be slidably connected with the bracket 11. The central axis of the guide rod 121 is arranged parallel to the central axis of the adjusting rod 131.

[0082] The guide rod 121 serves two purposes: firstly, it provides support for the spring 122, reducing the risk of the spring 122 bending during compression due to forces not parallel to its central axis. Secondly, it provides guidance. The guide rod 121 passes through the guide hole and is slidably connected to the bracket 11. When the adjusting rod 131 drives the pressure roller assembly 14 to move, the pressure roller assembly 14 will move the guide rod 121 and the spring 122 together. At this time, the spring 122, sleeved on the guide rod 121, will move along the central axis of the guide rod 121, which is also its own central axis, achieving precise control of the pressure on the spring 122. Furthermore, setting the central axis of the guide rod 121 parallel to the center line of the adjusting rod 131 is also to ensure that the pressure roller assembly 14 remains stable during movement, reducing the risk of skewing.

[0083] The elastic element 12 includes a guide rod 121 and a spring 122 sleeved on the outer periphery of the guide rod 121. The guide rod 121 is slidably installed in the guide hole of the bracket 11, and the guide rod 121 can play a supporting and guiding role.

[0084] Reference Figure 3 In some embodiments, there are two elastic elements 12, which are symmetrically arranged on both sides of the adjusting rod 131.

[0085] In one specific embodiment, the elastic element 12 may include a spring 122, with its two ends respectively disposed on both sides of the adjusting rod 131. In another specific embodiment, the elastic element 12 may also include a guide rod 121 and a spring 122 sleeved on the guide rod 121. If only one elastic element 12 is used, there is a risk that the pressure roller assembly 14 may tilt due to uneven force distribution. This would result in uneven force distribution when the label 510 is attached to the electrode 400, causing some parts of the label 510 to adhere tightly while others are not, resulting in uneven adhesion and potentially causing the label 510 to lift or fall off. In this embodiment, two elastic elements 12 are provided, and the elastic elements 12 are symmetrically disposed on both sides of the adjusting rod 131, applying a uniform pressing force to the pressure roller assembly 14 from both positions, ensuring uniform force distribution on the pressure roller assembly 14. The double springs 122 also reduce the risk of insufficient pressure from the weight of the pressure roller 141, leading to uneven contact between the pressure roller 141 and the electrode 400. Specifically, the elastic restoring force of spring 122 is generally controlled between 1N and 1.5N. If the elastic restoring force is too small, the force acting on the labeling process will be small, resulting in insufficient adhesion of label 510 and causing label detachment. If the elastic restoring force is too large, it will cause excessive pressure during the labeling process, resulting in damage such as cracking of electrode 400.

[0086] By setting two elastic elements 12 and symmetrically arranging the two elastic elements 12, the pressure roller assembly 14 is subjected to more uniform force, and the label 510 is more evenly attached to the electrode 400 when the label 510 is attached.

[0087] Reference Figure 3 and Figure 4 In some embodiments, the adjusting member 13 further includes a limiting ring 132 sleeved on the outer periphery of the adjusting rod 131. The limiting ring 132 is disposed at the end of the adjusting rod 131 away from the pressure roller assembly 14, and the limiting ring 132 is used to abut against the bracket 11 for limiting.

[0088] The limiting ring 132 can be a circular ring fitted around the outer circumference of the adjusting rod 131. It serves two purposes: firstly, it facilitates the rotation of the adjusting rod 131 by rotating the limiting ring 132, thus adjusting the position of the pressure roller assembly 14; secondly, it prevents the adjusting rod 131 from moving beyond its limit. Specifically, the bracket 11 includes a fixing plate 111 and a mounting plate 112, with the limiting ring 132 positioned on the side of the mounting plate 112 away from the pressure roller assembly 14. When the adjusting rod 131 drives the pressure roller assembly 14 towards the electrode 400 or the dispensing position of the dispensing mechanism, the label 510 can be applied more tightly. However, if the movement exceeds the limit, the clamping force acting on the electrode 400 will be excessive, potentially damaging the electrode 400 or causing it to crack. Therefore, a limiting ring 132 is provided on the outer periphery of the adjusting rod 131. When the limiting ring 132 abuts against the mounting plate 112, the adjusting rod 131 will no longer be able to move, thus limiting the position of the pressure roller assembly 14.

[0089] By setting a limiting ring 132 to abut against the bracket 11 for limiting, the risk of the pressure roller assembly 14 damaging the electrode 400 can be reduced.

[0090] Reference Figure 3 and Figure 4 In some embodiments, the bracket 11 includes a fixed plate 111 and a mounting plate 112 connected to each other. The fixed plate 111 is connected to the base 30, and the mounting plate 112 is provided with mounting holes. The pressure roller assembly 14 includes a connecting plate 142 and a pressure roller 141 mounted on the connecting plate 142. The two ends of the elastic member 12 are respectively connected to the mounting plate 112 and the connecting plate 142. One end of the adjusting member 13 is movably inserted through the mounting hole and connected to the connecting plate 142.

[0091] The fixing plate 111 is used to fix it on the base 30. The fixing plate 111 and the mounting plate 112 can be connected at an angle, such as perpendicularly. The mounting plate 112 is used to provide installation positions for the adjusting rod 131 and the guide rod 121. Specifically, the mounting plate 112 is provided with mounting holes for the adjusting rod 131 to pass through and guide holes for the guide rod 121 to pass through. The pressure roller assembly 14 may include a connecting plate 142 and a pressure roller 141. The pressure roller 141 is mounted on the connecting plate 142 and can rotate on the connecting plate 142. In this way, the clamping force of the elastic element 12 is applied to the connecting plate 142, and the pressure roller 141 is indirectly driven to move through the connecting plate 142. The label 510 is attached to the electrode 400 through the pressure roller 141. Compared with the elastic element 12 directly contacting the pressure roller 141, this embodiment applies the force to the plate-shaped object, resulting in more uniform force distribution and more precise control over the movement distance of the pressure roller assembly 14. Furthermore, in some specific embodiments, the pressure roller 141 can be rotated and mounted on the connecting plate 142, so that the elastic element 12 is not directly connected to the pressure roller 141, and the rotation of the pressure roller 141 will not be affected. In addition, an elastic layer can be wrapped around the outer periphery of the pressure roller 141 to reduce potential damage to the electrode 400.

[0092] By setting the bracket 11, which includes a fixing plate 111 and a mounting plate 112, and the pressure roller assembly 14, which includes a connecting plate 142 and a pressure roller 141, the two ends of the elastic member 12 are respectively connected to the mounting plate 112 and the connecting plate 142. Both the mounting plate 112 and the connecting plate 142 are plate-shaped, which makes it easier to install the elastic member 12. Furthermore, by driving the connecting plate 142 to move and then driving the pressure roller 141 to move, the movement position of the pressure roller 141 can be controlled more precisely.

[0093] Reference Figure 3 In some embodiments, the elastic element 12 includes a guide rod 121 and a spring 122 sleeved on the outer periphery of the guide rod 121. The bracket 11 also includes an abutment ring 113, which is disposed on the side of the mounting plate 112 facing the elastic element 12. The abutment ring 113 is sleeved on the outer periphery of the guide rod 121. The two ends of the spring 122 are respectively connected to the abutment ring 113 and the connecting plate 142. A pressure sensor is provided on the abutment ring 113.

[0094] The bracket 11 also includes an abutment ring 113, which is a ring-shaped body sleeved on the guide rod 121. The abutment ring 113 is located on the side of the mounting plate 112 facing the connecting plate 142, or the side facing the elastic element 12. The two ends of the spring 122 abut against the connecting plate 142 and the abutment ring 113 respectively. A pressure sensor is provided on the abutment ring 113 to detect the pressure of the spring 122, thereby indirectly obtaining the pressing force of the pressure roller 141 on the label 510 and the electrode 400, realizing real-time detection and adjustment of pressure, and reducing the risk of insufficient pressure causing poor adhesion or excessive pressure damaging the electrode 400.

[0095] By setting a pressure sensor, the pressure of the pressure roller 141 can be monitored in real time and timely adjustments can be made to avoid defects that may be caused by excessive or insufficient pressure.

[0096] Reference Figure 3 In some embodiments, the connecting plate 142 includes a first sub-plate 1421 and a second sub-plate 1422 connected to each other. The first sub-plate 1421 is arranged parallel to the mounting plate 112. The pressure roller 141 is rotatably mounted on the second sub-plate 1422. The two ends of the elastic member 12 are respectively connected to the mounting plate 112 and the first sub-plate 1421. One end of the adjusting member 13 is movably inserted through the mounting hole and connected to the first sub-plate 1421.

[0097] The first sub-plate 1421 and the second sub-plate 1422 can be set at any angle and can both be planar plates. In a specific embodiment, the first sub-plate 1421 and the second sub-plate 1422 are set perpendicularly. In this way, both ends of the spring 122 act on the planar plate, and the first sub-plate 1421 and the mounting plate 112 are set parallel to each other. During the movement of the adjusting rod 131, the first sub-plate 1421 and the mounting plate 112 are also kept parallel. At the same time, the first sub-plate 1421 and the second sub-plate 1422 are set perpendicularly, and the central axis of the pressure roller 141 is perpendicular to the second sub-plate 1422. This arrangement makes the movement direction of the pressure roller 141 consistent with the movement direction of the adjusting rod 131, and the pressure roller 141 is not easy to tilt during the movement.

[0098] By setting the first sub-plate 1421 parallel to the mounting plate 112, and connecting the two ends of the elastic member 12 to the mounting plate 112 and the first sub-plate 1421 respectively, the pressure roller 141 is less likely to tilt during movement.

[0099] Reference Figure 5 In some embodiments, the bidding mechanism includes a reel 40 rotatably mounted on the base 30, and a positioning pin 41 is provided on the reel 40.

[0100] The label tape 500 is cylindrical and has a hollow inner cavity that is inserted into the reel 40. The label tape 500 includes a film body 520 and a label 510 disposed on the film body 520. The label 510 is used to attach to the electrode 400. The film body 520 can be retrieved and wound together by the recovery shaft 70. To prevent the label 510 from being installed backwards, a positioning pin 41 is provided on the reel 40, and a corresponding slot is also provided in the inner cavity of the label tape 500. When the label tape 500 is installed backwards, the positioning pin 41 cannot be installed into the slot, thus preventing the label tape 500 from being installed. Only when installed correctly can the label tape 500 be installed on the reel 40.

[0101] By setting a positioning pin 41 on the reel 40, a foolproof function is provided, which can reduce the risk of the label tape 500 being installed backwards.

[0102] Reference Figure 5 and Figure 6 In some embodiments, the dispensing mechanism further includes a dispensing nozzle 21, which includes a body and a slot 211 disposed on the body. The slot 211 is disposed on opposite sides of the body along the conveying direction of the label 510.

[0103] The label dispensing end of the label nozzle 21 is used to convey the label 510 to the pressure roller assembly 14. The label dispensing nozzle 21 is generally inclined at an angle of 20° to 30° with the horizontal plane, specifically, 24° to 25°, to facilitate the separation of the label 510 from the film 520 and reduce the problem of the label 510 lifting up during the labeling process. Then, when the label tape 500 of the label 510 moves on the label dispensing nozzle 21, it is prone to lateral movement, causing the label 510 to shift its position on the electrode 400. Therefore, slots 211 can be provided on both sides of the label dispensing nozzle 21 along the label 510 conveying direction, that is, two slots 211 can be provided. The two sides of the label tape 500 along the conveying direction extend into the two slots 211 respectively. When the label tape 500 moves, it will be blocked by the slots 211, thereby reducing the movement of the label tape 500.

[0104] By setting slots 211 on both sides of the label nozzle 21, the risk of the label tape 500 moving around can be reduced, thereby reducing the risk of the label 510 shifting position on the electrode 400.

[0105] Reference Figure 2 or Figure 6 In some embodiments, the labeling device 100 further includes a through-beam photoelectric sensor 50, which is disposed on the transport path of the label 510 and is used to detect the distance the label 510 moves.

[0106] When the CCD camera identifies a defective electrode 400 and triggers the labeling action, the label 510 on the labeling device 100 passes through a photoelectric sensor (including a transmitter and a receiver) and calculates the fixed-length position of the label 510 by sensing the infrared beam. This ensures that one defective electrode 400 corresponds to one label 510, reducing the risk of labeling errors or inaccurate label movement distance.

[0107] By setting up a photoelectric sensor 50, the distance the label 510 moves can be confirmed, reducing the risk of labeling errors or inaccurate labeling due to inaccurate label movement distance.

[0108] According to some embodiments of this application, this application provides a labeling device 100, including a base 30, a pressing mechanism 10 and a label dispensing mechanism. The label dispensing mechanism includes a label dispensing nozzle 21 and a roller 40 rotatably mounted on the base 30 for conveying labels 510 to a pressure roller assembly 14. A positioning pin 41 is provided on the roller 40. The label dispensing nozzle 21 includes a body and a slot 211 provided on the body. The slot 211 is provided on opposite sides of the body along the conveying direction of the labels 510. The clamping mechanism 10 includes a bracket 11, an elastic element 12, an adjusting element 13, and a pressure roller assembly 14. The bracket 11 includes an abutment ring 113, and a fixed plate 111 and a mounting plate 112 connected to each other. The fixed plate 111 is connected to the base 30, and the mounting plate 112 is provided with a mounting hole. The pressure roller assembly 14 includes a connecting plate 142 and a pressure roller 141. The connecting plate 142 includes a first sub-plate 1421 and a second sub-plate 1422 connected to each other. The first sub-plate 1421 is arranged parallel to the mounting plate 112, and the pressure roller 141 is rotatably mounted on the second sub-plate 1422. The two ends of the elastic element 12 are respectively connected to the mounting plate 112 and the first sub-plate 1421. The adjusting element 13 includes an adjusting rod 131 and a limiting ring 132. The adjusting rod 131 is threadedly connected to the mounting hole, and one end of the adjusting rod 131 is movably inserted through the mounting hole and connected to the first sub-plate 1421. A limiting ring 132 is disposed at the end of the adjusting rod 131 away from the pressure roller assembly 14, and the limiting ring 132 is used to abut against the mounting plate 112 for limiting. In one specific embodiment, the elastic element 12 includes a guide rod 121 and a spring 122 sleeved on the outer periphery of the guide rod 121. The bracket 11 is provided with a guide hole. One end of the guide rod 121 is connected to the pressure roller assembly 14, and the other end of the guide rod 121 passes through the guide hole to be slidably connected with the bracket 11. The central axis of the guide rod 121 is parallel to the central axis of the adjusting rod 131. There are two elastic elements 12, which are symmetrically arranged on both sides of the adjusting rod 131. In another specific embodiment, an abutment ring 113 is disposed on the side of the mounting plate 112 facing the elastic element 12. The abutment ring 113 is sleeved on the outer periphery of the guide rod 121. The two ends of the spring 122 are respectively connected to the abutment ring 113 and the connecting plate 142. A pressure sensor is disposed on the abutment ring 113. The embodiments of this application can tightly attach the label 510 to the electrode 400, reducing the risk of missing labels on the electrode 400.

[0109] Reference Figure 7 According to some embodiments of this application, this application provides an electrode forming device 1000, which includes a conveying roller 200 and the labeling device 100 described above. The conveying roller 200 is used to convey the electrode 400, and the pressure roller assembly 14 is used to attach the label 510 to the electrode 400.

[0110] The number of conveying rollers 200 can be multiple. When the electrode 400 moves, it can drive the conveying rollers 200 to rotate. The conveying rollers 200 play a tensioning and guiding role. The pressure roller 141 and the label dispensing mechanism are set on the same side of the electrode 400, which makes it easy to attach the label 510 to the electrode 400. The conveying rollers 200 are set on the other side of the electrode 400.

[0111] By setting the conveyor roller 200 to convey the electrode sheet 400, the label 510 can be attached to the electrode sheet 400 by the pressure roller assembly 14, so as to realize the automatic attachment of the label 510 on the electrode sheet 400.

[0112] Reference Figure 7 In some embodiments, the labeling device 100 further includes a first label detection sensor 60, which is mounted on the base 30 and positioned near the pressure roller assembly 14; the electrode forming equipment 1000 further includes a second label detection sensor 300, which is spaced apart from the first label detection sensor 60 along the conveying direction of the electrode 400.

[0113] Both the first label detection sensor 60 and the second label detection sensor 300 are used to detect whether a label 510 exists on the electrode sheet 400, specifically to detect whether a label 510 exists on a defective electrode sheet 400. After the pressure roller assembly 14 applies the label 510, the first label detection sensor 60 checks whether the electrode sheet 400 still has the label 510 attached. Since the first label detection sensor 60 is positioned close to the pressure roller assembly 14, there is still a risk that the label 510 may fall off during the electrode sheet 400's transport to the next process. Therefore, a second label detection sensor 300 can be installed above the last conveyor roller 200 before the electrode sheet 400 enters the next process to detect whether the label 510 is still on the electrode sheet 400. If the label 510 falls off or the labeling machine fails to dispense a label, the second label detection sensor 300 can detect this in time, triggering an alarm and stopping the machine, prompting the operator to relabel.

[0114] By setting up a first label detection sensor 60 and a second label detection sensor 300, the risk of an electrode 400 with a dropped label 510 being transported to the next process can be reduced.

[0115] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of the specification and drawings of this application under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A labelling apparatus characterised in that, include: Base; A clamping mechanism, comprising a bracket, an elastic element, an adjusting element, and a pressure roller assembly, wherein the bracket is mounted on the base, both ends of the elastic element are respectively connected to the bracket and the pressure roller assembly, the bracket is provided with a mounting hole, and one end of the adjusting element is movably inserted through the mounting hole and connected to the pressure roller assembly; The adjusting component includes an adjusting rod, which is threadedly connected to the mounting hole so that the adjusting rod can move along its own central axis when it rotates in the mounting hole, thereby driving the pressure roller assembly to move. A label dispensing mechanism, mounted on the base, is used to feed labels to the pressure roller assembly.

2. The labeling device according to claim 1, characterized in that, The mounting hole is provided with an internal thread section, and the outer wall surface of the adjusting rod is provided with an external thread section. The length of the external thread section along the central axis of the adjusting rod is greater than the length of the internal thread section along the central axis of the adjusting rod.

3. The labeling device according to claim 1, characterized in that, The elastic element includes a guide rod and a spring sleeved on the outer periphery of the guide rod. The bracket is provided with a guide hole. One end of the guide rod is connected to the pressure roller assembly, and the other end of the guide rod passes through the guide hole to be slidably connected with the bracket. The central axis of the guide rod is arranged parallel to the central axis of the adjusting rod.

4. The labeling device according to claim 1, characterized in that, The number of elastic elements is two, and the two elastic elements are symmetrically arranged on both sides of the adjusting rod.

5. The labeling device according to claim 1, characterized in that, The adjusting component also includes a limiting ring sleeved on the outer periphery of the adjusting rod. The limiting ring is located at the end of the adjusting rod away from the pressure roller assembly and is used to abut against and limit the movement of the bracket.

6. The labeling device according to claim 1, characterized in that, The bracket includes a fixed plate and a mounting plate connected to each other. The fixed plate is connected to the base, and the mounting plate is provided with the mounting hole. The pressure roller assembly includes a connecting plate and a pressure roller mounted on the connecting plate. The two ends of the elastic member are respectively connected to the mounting plate and the connecting plate. One end of the adjusting member is movably inserted through the mounting hole and connected to the connecting plate.

7. The labeling device according to claim 6, characterized in that, The elastic element includes a guide rod and a spring sleeved on the outer periphery of the guide rod. The bracket includes an abutment ring, which is disposed on the side of the mounting plate facing the elastic element. The abutment ring is sleeved on the outer periphery of the guide rod. The two ends of the spring are respectively connected to the abutment ring and the connecting plate. A pressure sensor is disposed on the abutment ring.

8. The labeling device according to claim 7, characterized in that, The connecting plate includes a first sub-plate and a second sub-plate connected to each other. The first sub-plate is arranged parallel to the mounting plate. The pressure roller is rotatably mounted on the second sub-plate. The two ends of the elastic member are respectively connected to the mounting plate and the first sub-plate. One end of the adjusting member is movably inserted through the mounting hole and connected to the first sub-plate.

9. The labeling device according to any one of claims 1 to 8, characterized in that, The bidding mechanism includes a scroll rotatably mounted on the base, and a positioning pin is provided on the scroll.

10. The labeling device according to any one of claims 1 to 8, characterized in that, The label dispensing mechanism further includes a label dispensing nozzle, which includes a body and a slot disposed on the body. The slots are disposed on opposite sides of the body along the label conveying direction.

11. The labeling device according to any one of claims 1 to 8, characterized in that, The labeling device also includes a through-beam photoelectric sensor, which is disposed on the transport path of the label and is used to detect the distance the label moves.

12. An electrode forming device, characterized in that, The electrode forming equipment includes a conveying roller and a labeling device according to any one of claims 1 to 11, wherein the conveying roller is used to convey the electrode sheet and the pressure roller assembly is used to attach the label to the electrode sheet.

13. The electrode forming equipment according to claim 12, characterized in that, The labeling device further includes a first label detection sensor, which is mounted on the base and positioned near the pressure roller assembly; the electrode forming equipment further includes a second label detection sensor, which is spaced apart from the first label detection sensor along the conveying direction of the electrode.

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