Dispensing mechanism

Abstract

The invention relates to a dispensing mechanism which comprises a dispensing assembly and a flattening assembly which are arranged in parallel. The dispensing assembly comprises a dispensing valve and a dispensing head, and the flattening assembly comprises a lifting structure and a pressing and holding piece. When the pole piece needs to be dispensed, the pressing and holding piece is firstly driven by the lifting structure to descend relative to the dispensing head until the pressing and holding piece downwards protrudes out of the tail end of the dispensing head and abuts against the pole piece to be dispensed. Then, the adhesive dispensing mechanism moves in the plane, so that the pressing and holding piece can be driven to move on the surface of the pole piece, and the pole piece is flattened. After the pole piece is flattened, the lifting structure drives the pressing piece to ascend relative to the dispensing head until the dispensing head protrudes out of the abutting piece downwards. And at the moment, the dispensing valve is opened, so that the dispensing head can dispense glue on the pole piece. Because the pole piece is effectively flattened before dispensing, the surface flatness of the pole piece can be ensured to be higher, so that the positioning accuracy in the dispensing process can be ensured, and the dispensing precision is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical automation technology, and in particular to a dispensing mechanism. Background Technology

[0002] Dispensing mechanisms are widely used in battery processing, semiconductor manufacturing, and other fields, and their dispensing accuracy directly affects the reliability and performance stability of products. However, during the dispensing process of sheet materials (such as electrodes), the materials are prone to warping and uneven surfaces, which can easily lead to misalignment of the dispensing position, thus affecting the accuracy and consistency of the dispensing position and ultimately impacting the dispensing precision. Summary of the Invention

[0003] Therefore, it is necessary to provide a dispensing mechanism that can improve the accuracy of dispensing adhesive to electrodes to address the above problems.

[0004] A dispensing mechanism includes a dispensing component and a flattening component, the dispensing component and the flattening component being arranged side by side. The dispensing component includes a dispensing valve and a dispensing head connected to the dispensing valve. The flattening component includes a lifting structure and a holding member. The holding member is installed on the moving end of the lifting structure and can be lifted and lowered in a direction parallel to the extension direction of the dispensing head under the drive of the lifting structure.

[0005] In one embodiment, the dispensing assembly further includes a dispensing bucket detachably connected to the dispensing valve.

[0006] In one embodiment, the holding member is capable of moving up and down in a direction parallel to the extension direction of the dispensing head, driven by the lifting structure.

[0007] In one embodiment, the lifting structure includes a lifting drive, a guide rod, and a guide block. The guide rod is slidably inserted through the guide block and is connected to the lifting drive. The holding member is connected to one end of the guide rod.

[0008] In one embodiment, the pressing member is configured as a pressure roller, which is rotatable about its own axis.

[0009] In one embodiment, the axis of the pressure roller is capable of being reversibly deflected relative to the lifting structure.

[0010] In one embodiment, the flattening assembly further includes a support, the pressure roller is rotatably mounted on the support, and the support is connected to the lifting structure via an elastic element.

[0011] In one embodiment, the surface of the pressure roller is covered with an elastic layer.

[0012] In one embodiment, a dispensing lifting assembly is further included. The dispensing assembly is mounted on the movable end of the dispensing lifting assembly and can be raised and lowered in a direction parallel to the extension direction of the dispensing head under the drive of the dispensing lifting assembly.

[0013] In one embodiment, a back plate is also included, on which both the dispensing lifting assembly and the flattening assembly are mounted.

[0014] In one embodiment, a height measuring component is also included, which is mounted on the back plate.

[0015] In the aforementioned dispensing mechanism, when dispensing adhesive to the electrode sheet is required, the holding member first descends relative to the dispensing head under the action of the lifting structure until it protrudes downwards beyond the end of the dispensing head and abuts against the electrode sheet to be dispensed. Next, by moving the dispensing mechanism in a plane, the holding member moves across the electrode sheet surface, flattening it. After the electrode sheet is flattened, the lifting structure raises the holding member relative to the dispensing head until the dispensing head protrudes downwards beyond the holding member. At this point, opening the dispensing valve allows the dispensing head to dispense adhesive onto the electrode sheet. Because the electrode sheet is effectively flattened before dispensing, its surface flatness is ensured, thus guaranteeing positioning accuracy during the dispensing process and significantly improving dispensing precision. Attached Figure Description

[0016] 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 these drawings without creative effort.

[0017] Figure 1 This is a top view of the dispensing mechanism in one embodiment of the present invention;

[0018] Figure 2 for Figure 1 The front view of the dispensing mechanism is shown. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] The present invention provides a dispensing mechanism for dispensing adhesive onto sheet materials, such as electrodes, to form an adhesive print on a predetermined area on the surface of the electrode.

[0026] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the dispensing mechanism 300 includes a dispensing component 310 and a flattening component 320.

[0027] The dispensing assembly 310 includes a dispensing valve 311 and a dispensing head 312, with the dispensing head 312 connected to the dispensing valve 311. The dispensing head 312 is generally elongated and hollow inside. When the dispensing valve 311 is opened, adhesive can enter the dispensing head 312 to achieve dispensing.

[0028] Specifically, in this embodiment, the dispensing assembly 310 further includes a dispensing cylinder 313, which is detachably connected to the dispensing valve 311. The dispensing cylinder 313 is used to store adhesive. After the dispensing valve 311 is opened, the adhesive in the dispensing cylinder 313 can flow into the dispensing head 312 to achieve dispensing. Moreover, since the dispensing cylinder 313 is detachable, the corresponding dispensing cylinder 313 can be replaced according to different production processes, thereby switching the type of adhesive used for dispensing, so that the dispensing mechanism 300 can be adapted to various working conditions.

[0029] The flattening assembly 320 and the dispensing assembly 310 are arranged side by side. The flattening assembly 320 includes a lifting structure 321 and a holding member 322. The holding member 322 is installed on the moving end of the lifting structure 321 and can rise and fall under the drive of the lifting structure 321. Specifically, the holding member 322 can rise and fall parallel to the extension direction of the dispensing head 312 under the drive of the lifting structure 321. Of course, the holding member 322 can also rise and fall relative to the dispensing head 312 by swinging under the drive of the lifting structure 321. The extension direction of the dispensing head 312 is generally the up and down direction in actual operation. The lifting structure 321 can be driven by a cylinder, motor and lead screw pair, etc. The holding member 322 can be columnar or plate-shaped, as long as it can apply pressure to the electrode sheet.

[0030] During dispensing of adhesive to the electrode sheet, the holding member 322 first descends relative to the dispensing head 312 under the action of the lifting structure 321 until it protrudes downwards beyond the end of the dispensing head 312 and abuts against the electrode sheet to be dispensed. Next, by driving the dispensing mechanism 300 to translate, the holding member 322 moves across the electrode sheet surface, flattening the electrode sheet. After the electrode sheet is flattened, the lifting structure 321 raises the holding member 322 relative to the dispensing head 312 until the dispensing head 312 protrudes downwards beyond the holding member 322. At this point, opening the dispensing valve 311 allows the dispensing head 312 to dispense adhesive onto the electrode sheet. Because the electrode sheet is effectively flattened before dispensing, its surface flatness is ensured, thus guaranteeing positioning accuracy during the dispensing process and significantly improving dispensing precision.

[0031] Specifically, in this embodiment, the lifting structure 321 includes a lifting drive component 3211, a guide rod 3212, and a guide block 3213. The guide rod 3212 is slidably inserted through the guide block 3213 and is connected to the lifting drive component 3211. The holding component 322 is connected to one end of the guide rod 3212. The lifting drive component 3211 and the guide block 3213 are fixedly installed. The guide rod 3212 and the guide block 3213 cooperate to limit and guide, thereby ensuring that the holding component 322 maintains high stability during the lifting process.

[0032] Specifically, in this embodiment, the pressing member 322 is configured as a pressure roller, which can rotate around its own axis. When the dispensing mechanism 300 translates, the pressure roller can roll along the surface of the electrode to flatten the electrode. Flattening the electrode by roller pressing is more effective, and since there is rolling friction between the pressure roller and the electrode, the electrode is less likely to be damaged.

[0033] More specifically, in this embodiment, the surface of the pressure roller is covered with an elastic layer (not shown). The elastic layer can be a rubber layer or a silicone layer, and it can undergo elastic deformation under compression. On the one hand, the elastic layer can better fill the gap between the pressure roller and the electrode, thereby improving the flattening effect of the roller. On the other hand, the elastic layer can act as a buffer, further reducing the probability of damaging the electrode.

[0034] Furthermore, in this embodiment, the axis of the pressure roller can be reversibly deflected relative to the lifting structure 321. That is, the pressure roller can elastically float relative to the lifting structure 321, so that the pressure roller can better fit with the electrode surface during the rolling process along the electrode surface, thereby further improving the effect of roller pressing and flattening.

[0035] Furthermore, in this embodiment, the flattening assembly 320 also includes a bracket 323, on which the pressure roller is rotatably mounted, and the bracket 323 is connected to the lifting structure 321 via an elastic element (not shown). The elastic element can be a spring, sheet metal, or other elastic component, allowing the bracket 323 to deflect relative to the lifting structure 321, thereby enabling the pressure roller to float.

[0036] In this embodiment, the dispensing mechanism 300 further includes a dispensing lifting assembly 330. The dispensing assembly 310 is installed on the moving end of the dispensing lifting assembly 330 and can be lifted and lowered in a direction parallel to the extension direction of the dispensing head 312 under the drive of the dispensing lifting assembly 330.

[0037] The dispensing lifting assembly 330 can also employ a linear motor or a structure combining a motor and a screw thread pair, which can drive the entire dispensing assembly 310 to rise and fall. During the dispensing operation, the dispensing lifting assembly 330 can raise and lower the dispensing assembly 310, thereby raising and lowering the dispensing head 311 relative to the electrode to be dispensed, thus ensuring that the distance between the dispensing head 311 and the electrode to be dispensed is within an optimal range.

[0038] Of course, in other embodiments, the dispensing lifting assembly 330 may be omitted. In this case, a lifting assembly is required for the electrode-carrying mechanism. The lifting assembly can move the electrode it carries up and down, thereby ensuring that the distance between the dispensing head 311 and the electrode to be dispensed is within an optimal range.

[0039] Furthermore, in this embodiment, the dispensing mechanism 300 also includes a height measuring component 340. The height measuring component 340 can precisely measure the height of the electrode surface, specifically the adhesive coating area at the edge of the solid electrolyte. Based on the height information measured by the height measuring component 340, the height of the dispensing head 311 relative to the electrode can be precisely adjusted.

[0040] Specifically, the dispensing lifting assembly 330 includes a back plate 331 and a motion plate 332. The back plate 331 facilitates the dispensing lifting assembly 330, and the flattening assembly 320 and the height measuring assembly 340 are both mounted on the back plate 331. The motion plate 332 can be raised and lowered, and the dispensing assembly 300 is mounted on the lifting plate 332.

[0041] In the aforementioned dispensing mechanism 300, when dispensing adhesive to the electrode sheet is required, the holding member 322 first descends relative to the dispensing head 311 under the action of the lifting structure 321 until the holding member 322 protrudes downwards beyond the end of the dispensing head 311 and abuts against the electrode sheet to be dispensed. Next, by moving the dispensing mechanism 300 in a plane, the holding member 322 moves across the electrode sheet surface, flattening the electrode sheet. After the electrode sheet is flattened, the lifting structure 321 raises the holding member 322 relative to the dispensing head 311 until the dispensing head 311 protrudes downwards beyond the holding member 322. At this point, opening the dispensing valve 312 allows the dispensing head 311 to dispense adhesive to the electrode sheet. Because the electrode sheet is effectively flattened before dispensing, its surface flatness is ensured, thus guaranteeing positioning accuracy during the dispensing process and significantly improving dispensing precision.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A dispensing mechanism, characterized in that, The device includes a dispensing assembly and a flattening assembly, which are arranged side by side. The dispensing assembly includes a dispensing valve and a dispensing head connected to the dispensing valve. The flattening assembly includes a lifting structure and a pressing member, which is installed on the moving end of the lifting structure.

2. The dispensing mechanism according to claim 1, characterized in that, The dispensing assembly also includes a dispensing bucket, which is detachably connected to the dispensing valve.

3. The dispensing mechanism according to claim 1, characterized in that, The holding member can move up and down in a direction parallel to the extension direction of the dispensing head under the action of the lifting structure.

4. The dispensing mechanism according to claim 2, characterized in that, The lifting structure includes a lifting drive component, a guide rod, and a guide block. The guide rod is slidably inserted through the guide block and is connected to the lifting drive component. The holding component is connected to one end of the guide rod.

5. The dispensing mechanism according to claim 1, characterized in that, The pressing element is configured as a pressure roller, which is capable of rotating about its own axis.

6. The dispensing mechanism according to claim 5, characterized in that, The axis of the pressure roller can be reversibly deflected relative to the lifting structure.

7. The dispensing mechanism according to claim 6, characterized in that, The flattening assembly also includes a support frame, the pressure roller is rotatably mounted on the support frame, and the support frame is connected to the lifting structure via an elastic element.

8. The dispensing mechanism according to claim 5, characterized in that, The surface of the pressure roller is covered with an elastic layer.

9. The dispensing mechanism according to claim 1, characterized in that, It also includes a dispensing lifting assembly, which is installed on the moving end of the dispensing lifting assembly and can be raised and lowered in a direction parallel to the extension direction of the dispensing head under the drive of the dispensing lifting assembly.

10. The dispensing mechanism according to claim 9, characterized in that, It also includes a back plate, on which both the dispensing lifting assembly and the flattening assembly are mounted.

11. The dispensing mechanism according to claim 10, characterized in that, It also includes a height measuring component, which is mounted on the back plate.

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