Pressing cutter and stacking table capable of preventing material sheets from deviating

Abstract

The utility model relates to the technical field of pole piece battery production, and particularly discloses a pressing knife and a stacking table for preventing material pieces from deviating. The pressing knife comprises a pressing knife main body, the pressing knife main body comprises a connecting end and a pressing end; the thickness of the pressing end is smaller than that of the connecting end; the length of the pressing end is smaller than that of the connecting end. According to the scheme, the connecting end is used for being connected with various driving mechanisms for driving the pressing cutter to press; and the pressing end is used for pressing the material sheet. The thickness and the length of the connecting end are larger than those of the pressing end, so that the connecting end can provide stable support for the pressing end, and the pressing force of the pressing end on the material sheet is ensured. Meanwhile, as the thickness of the pressing end is smaller than that of the connecting end, the friction force between the pressing end and the material piece can be reduced, and then the offset of the material piece when the pressing knife body is pulled away is reduced.

Description

Technical Field

[0001] This application relates to the field of electrode battery manufacturing technology, and in particular to a pressing knife and stacking platform for preventing electrode misalignment. Background Technology

[0002] Stacking is a process in which electrode sheets, separator sheets, and other materials are stacked sequentially in a specific order to form a stack. It is widely used in battery manufacturing and other fields. During the stacking process, a pressure knife is used to press the sheets together to ensure that the multiple layers of sheets are tightly packed and to prevent the sheets from shifting during the stacking process.

[0003] Because multiple layers of sheet material need to be stacked sequentially, the pressing blade needs to undergo a pressing action and a retraction action during the stacking process. The pressing action refers to the pressing blade pressing down to compress the sheet material; the retraction action refers to the pressing blade being removed from the sheet material so that a new sheet material can be placed in the stack.

[0004] When the pressure knife is pulled away from the material sheet, the friction between the pressure knife and the material sheet causes the material sheet to deviate significantly, or lifts the material sheet, causing some of the material sheet to deviate. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a pressure knife and stacking platform to prevent material slip deviation, so as to solve the problem of large material slip deviation when the pressure knife is withdrawn.

[0006] To achieve the above-mentioned technical objectives, the first aspect of this application provides a pressure knife for preventing sheet displacement, comprising: a pressure knife body;

[0007] The pressing knife body includes a connecting end and a pressing end;

[0008] The thickness of the pressing end is less than the thickness of the connecting end;

[0009] The length of the clamping end is less than the length of the connecting end.

[0010] Furthermore, the outer peripheral region of the pressing end is provided with a thickness reduction zone.

[0011] Furthermore, the pressing knife body includes a reinforcing section;

[0012] The reinforcing section is disposed between the connecting end and the clamping end;

[0013] The thickness of the reinforcing section decreases from the connecting end toward the pressing end.

[0014] Furthermore, the thickness of the pressing end is less than or equal to 1 / 3 of the thickness of the connecting end;

[0015] The length of the clamping end is less than or equal to 1 / 2 of the length of the connecting end.

[0016] Furthermore, the clamping end is provided with a detection hole that extends through the thickness direction.

[0017] A second aspect of this application provides a stacking platform, comprising: a stacking platform body and a plurality of pressing mechanisms;

[0018] The pressing mechanism includes any of the pressing mechanisms described above;

[0019] The stacking platform is provided with a placement platform for placing the material sheets;

[0020] The pressing knife body is movably mounted on the stacking platform body;

[0021] The pressure knife body is used to press the material sheet on the placement table.

[0022] Furthermore, it also includes a first drive mechanism and a second drive mechanism;

[0023] The pressing mechanism includes two parts, and the two pressing mechanisms are arranged on both sides of the placement platform along the first direction;

[0024] The output end of the first driving mechanism is connected to the two pressing mechanisms, which is used to drive the two pressing mechanisms to move closer or further apart from each other along the first direction;

[0025] The pressing mechanism includes two sets of pressing blades;

[0026] The two sets of pressure knives are arranged on both sides of the placement platform along the second direction;

[0027] The output end of the second drive mechanism is connected to the two pressure knives, which is used to drive the two pressure knives to move closer to or further away from each other along the second direction;

[0028] The first direction and the second direction are located on a horizontal plane and are perpendicular to each other.

[0029] Furthermore, it also includes a third drive mechanism;

[0030] The output end of the third driving mechanism is connected to the pressing mechanism, and is used to drive the pressing mechanism to move in the vertical direction.

[0031] Furthermore, it also includes electrode clamping components;

[0032] The electrode clamping component is used to clamp the electrode on the placement platform;

[0033] The electrode clamping component is fixedly connected to the pressure knife body.

[0034] Furthermore, it also includes a vertical drive mechanism;

[0035] The output end of the vertical drive mechanism is connected to the placement platform, and is used to drive the placement platform to move in the vertical direction.

[0036] Furthermore, the placement platform is provided with multiple adsorption zones;

[0037] The adsorption zone is provided with vacuum adsorption holes.

[0038] As can be seen from the above technical solutions, this application provides a pressing knife and stacking platform for preventing sheet displacement; wherein, the pressing knife includes: a pressing knife body; the pressing knife body includes a connecting end and a pressing end; the thickness of the pressing end is less than the thickness of the connecting end; the length of the pressing end is less than the length of the connecting end.

[0039] In this design, the connecting end is used to connect to the drive mechanism that drives the pressing knife to perform various pressing operations; the clamping end is used to clamp the material sheet. Since the connecting end is thicker and longer than the clamping end, it provides stable support for the clamping end, ensuring the clamping force on the material sheet. Simultaneously, because the clamping end is thinner than the connecting end, it reduces the friction between the clamping end and the material sheet, thereby reducing the material sheet's offset when the pressing knife body is withdrawn. Attached Figure Description

[0040] 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.

[0041] Figure 1 A perspective view of a pressure knife for preventing sheet displacement in a horizontal position, provided for an embodiment of this application;

[0042] Figure 2 Another perspective view of a pressure knife for preventing sheet displacement provided in this application embodiment, in a horizontally placed configuration.

[0043] Figure 3 A perspective view of a stacking platform provided in an embodiment of this application;

[0044] Figure 4 Another perspective view of a stacking platform provided in an embodiment of this application;

[0045] Figure 5 A perspective view of some components of a stacking platform provided in an embodiment of this application;

[0046] Figure 6 Another perspective view of a portion of a stacking platform provided in an embodiment of this application;

[0047] Figure 7 A top view of a stacking platform provided in an embodiment of this application;

[0048] In the picture:

[0049] 10. Pressing blade body; 11. Connecting end; 12. Pressing end; 121. Thickness reduction zone; 13. Reinforcing section; 14. Inspection hole; 15. Support plate; 16. Second support plate; 17. Lifting plate;

[0050] 20. Stacking platform; 21. Placement platform; 211. Adsorption area; 212. Placement plate;

[0051] 30. First drive mechanism;

[0052] 40. Second drive mechanism;

[0053] 50. Third drive mechanism;

[0054] 60. Electrode clamping parts;

[0055] 70. Vertical drive mechanism;

[0056] x-axis direction: first direction; y-axis direction: second direction; z-axis direction: vertical direction. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0058] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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 the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0060] Please see Figure 1 The first aspect of this application provides a pressure knife for preventing sheet displacement, comprising: a pressure knife body 10. The pressure knife body 10 can be installed on an existing stacking platform for stacking sheets. The installation and connection methods between the pressure knife body 10 and the stacking platform can follow existing technologies, specifically enabling the pressure knife body 10 to perform pressing and withdrawing actions to clamp or separate the sheet. Generally, a pressure knife driving mechanism is provided on the stacking platform, which drives the pressure knife body 10 to perform pressing and withdrawing actions. Similarly, the pressure knife driving mechanism can follow existing technologies; therefore, the structure of the pressure knife driving mechanism will not be described in detail in this embodiment.

[0061] The pressure cutter body 10 includes a connecting end 11 and a clamping end 12. The connecting end 11 is used to connect to the output end of the pressure cutter drive mechanism, and the connection method can be, for example, a fixed connection using bolts or other connecting parts. The clamping end 12 is used to contact the material sheet. It should be noted that, taking the pressure cutter body 10 as an example with its horizontal placement, the end face of the clamping end 12 that contacts the material sheet is the bottom face of the clamping end 12; however, in addition to the bottom face of the clamping end 12, the bottom face of the connecting end 11 can also be configured to partially contact the material sheet. That is, both the connecting end 11 and the clamping end 12 can be used to contact and clamp the material sheet, wherein the clamping end 12 is closer to the middle region of the material sheet than the connecting end 11.

[0062] In this embodiment, the thickness of the pressing end 12 is less than the thickness of the connecting end 11, and the length of the pressing end 12 is less than the length of the connecting end 11.

[0063] Specifically, taking the horizontal placement of the pressure knife body 10 as an example, the thickness of the pressure knife body 10 is the dimension along the vertical direction, that is, along... Figure 1 The dimension along the z-axis; the length of the pressure knife body 10 is its own length, specifically from the connecting end 11 to the clamping end 12, that is... Figure 1 The x-axis direction in the diagram.

[0064] In practical applications, the clamping end 12 can be configured to have a thickness less than that of existing clamping knives. Generally, the thickness of existing clamping knives is mostly 1-2 mm. Therefore, in the clamping knife provided in this embodiment, the thickness of the clamping end 12 can be configured to be less than 1 mm. Optionally, the thickness of the clamping end 12 can be configured to be less than 0.5 mm.

[0065] The thickness of the pressure cutter affects its overall clamping force. For example, when the overall thickness of the pressure cutter is less than 1mm, the risk of material shifting during the stacking process increases due to a decrease in clamping force. Conversely, when the pressure cutter is thicker, the excessive clamping force increases the risk of material shifting when the pressure cutter is withdrawn.

[0066] In this embodiment, since the thickness and length of the connecting end 11 are both greater than those of the pressing end 12, the connecting end 11 can provide stable back support for the pressing end 12. At the same time, the pressing end 12 is thinner, which can reduce the friction between it and the material sheet, thereby ensuring the pressing effect while reducing the risk of the material sheet shifting during extraction.

[0067] In one embodiment, a thickness reduction region 121 is provided on the outer periphery of the pressing end 12. The thickness reduction region 121 can be formed by removing part of the material at the top of the pressing end 12 through cutting or other methods, so as to further reduce the thickness of the outer periphery of the pressing end 12, thereby further reducing the risk of the material sheet shifting when the pressing knife is withdrawn.

[0068] The pressing knife provided in this embodiment can quickly and unobstructedly remove the pressing knife from the stack, thereby improving the alignment of the stack and increasing the stacking efficiency.

[0069] In one embodiment, the thickness of the clamping end 12 can be configured to be less than or equal to one-third of the thickness of the connecting end 11; the length of the clamping end 12 can be configured to be less than or equal to one-half of the length of the connecting end 11. For example, the thickness of the middle region of the clamping end 12 is 0.5 mm, the thickness of the outermost region is 0.3 mm, and the length of the clamping end 12 is 30 mm; the length of the connecting end 11 is 120 mm, and the thickness of the connecting end 11 is 4 mm.

[0070] In one embodiment, the pressure knife body 10 includes a reinforcing section 13; the reinforcing section 13 is disposed between the connecting end 11 and the pressing end 12; the thickness of the reinforcing section 13 decreases along the direction from the connecting end 11 to the pressing end 12.

[0071] In application, the bottom surfaces of the connecting end 11, the reinforcing section 13, and the clamping end 12 are flush. The top surface of the reinforcing section 13 is sloped to connect the clamping end 12 and the connecting end 11, thereby enhancing the stability of the clamping end 12.

[0072] In one embodiment, the clamping end 12 is provided with a detection hole 14 that extends through the thickness direction. The detection hole 14 has a notch-free design to avoid hooking or shifting the material sheet.

[0073] The detection hole 14 can be used by optical inspection equipment to identify the pressing state of the sheet. Specifically, the optical inspection equipment is existing equipment, which can capture an overall image of the entire area after the pressing blade body 10 presses the sheet, as well as a partial image of the sheet captured through the detection hole 14. Then, by analyzing the overall image and the partial image, it can determine whether the sheet is pressed. The analysis method is existing technology. For example, when the sheet is not fully pressed, the sheet will show signs of compression and wrinkles, which can be captured by the optical inspection equipment.

[0074] As one implementation method, please refer to Figure 1 and Figure 2 On the main body 10 of the pressure knife, the shape of the pressing end 12 can be a regular symmetrical structure or an asymmetrical irregular structure.

[0075] A second aspect of this application provides a stacking platform; please refer to [link / reference]. Figures 1 to 4 The stacking platform includes: a stacking platform body 20 and a plurality of pressing knife mechanisms; the pressing knife mechanism includes the pressing knife in any of the above embodiments; the stacking platform body 20 is provided with a placement platform 21 for placing material sheets; the pressing knife body 10 of the pressing knife is movably disposed on the stacking platform body 20; the pressing knife body 10 is used to press the material sheets on the placement platform 21.

[0076] In this embodiment, multiple sets of pressing mechanisms can be provided to press different areas of the material sheet respectively. Specifically, the material sheets can be stacked on the placement table 21. At the same time, an existing pressing drive mechanism can be provided on the stacking table body 20. The pressing drive mechanism is connected to each pressing mechanism to drive the pressing mechanism to perform pressing and pulling actions on the material sheet.

[0077] In one embodiment provided in this application, the stacking platform further includes a first driving mechanism 30 and a second driving mechanism 40; two pressure knife mechanisms are included, and the two pressure knife mechanisms are arranged on both sides of the placement platform 21 along a first direction; the output end of the first driving mechanism 30 is connected to the two pressure knife mechanisms, which is used to drive the two pressure knife mechanisms to move closer or further away from each other along the first direction; the pressure knife mechanism includes two sets of pressure knives, that is, one pressure knife mechanism includes two pressure knife bodies 10; the two sets of pressure knives are arranged on both sides of the placement platform 21 along a second direction; the output end of the second driving mechanism 40 is connected to the two pressure knives, which is used to drive the two pressure knives to move closer or further away from each other along the second direction; the first direction and the second direction are located on a horizontal plane and are perpendicular to each other.

[0078] Specifically, both the first driving mechanism 30 and the second driving mechanism 40 are disposed on the stacking platform body 20. In this embodiment, the first direction is... Figure 3The x-axis direction is the same as the length direction of the pressure cutter body 10. The second direction is... Figure 3 The y-axis direction is the same as the width direction of the pressure knife body 10.

[0079] In one embodiment, the first drive mechanism 30 may include a rotary motor, a lead screw, and a guide rod. The guide rod is arranged along a first direction, and two pressing mechanisms are slidably mounted on the guide rod. The threads on both sides of the lead screw are opposite, and the two pressing mechanisms are respectively threaded to both sides of the lead screw. The output end of the rotary motor is connected to the lead screw. When the rotary motor starts and drives the lead screw to rotate, it can drive the two pressing mechanisms to move in opposite directions along the first direction.

[0080] In another implementation, the number of first drive mechanisms 30 is the same as the number of pressing mechanisms, that is, there are two first drive mechanisms 30. Each first drive mechanism 30 can be a cylinder or a motor. The pressing mechanism is mounted on a support plate 15, which is slidably mounted on the stack body along a first direction. The output end of each first drive mechanism 30 is connected to the support plate 15; when the first drive mechanism 30 is activated, it can drive the support plate 15 to move along the first direction, thereby enabling the two first drive mechanisms 30 to drive the two pressing mechanisms to move in opposite directions along the first direction, thus adjusting the distance between the two pressing mechanisms in the first direction.

[0081] As one implementation method, such as Figure 5 and Figure 6 As shown, the second drive mechanism 40 can be a cylinder or a motor. The pressing mechanism includes a second support plate 16. The second support plate 16 is movably mounted on the support plate 15 along a second direction. The pressing body 10 is mounted on the second support plate 16. When the second drive mechanism 40 is activated, it can drive the second support plate 16 to move along the second direction. In this embodiment, the number of second drive mechanisms 40 corresponds to the number of pressing bodies 10, that is, in one pressing mechanism, there are two second drive mechanisms 40 respectively connected to two pressing bodies 10. When the two second drive mechanisms 40 are activated, they can drive the two pressing bodies 10 in one pressing structure to move closer or further apart along the second direction, thereby adjusting the distance between them in the second direction.

[0082] In one embodiment, see Figures 3 to 6 The stack also includes a third drive mechanism 50; the output end of the third drive mechanism 50 is connected to the pressing mechanism, which is used to drive the pressing mechanism to move in the vertical direction.

[0083] In one embodiment, the second support plate 16 described above is provided with a lifting plate 17 that can move vertically. The pressing body 10 is disposed on the lifting plate 17, that is, the pressing body 10 is disposed on the second support plate 16 via the lifting plate 17. The third drive mechanism 50 can be a cylinder. The output end of the third drive mechanism 50 is connected to the lifting plate 17, so that when it is started, it can drive the pressing body 10 to rise and fall.

[0084] In the embodiments provided in this application, when the first drive mechanism 30 is started, it can drive the support plate 15, the second support plate 16, the second drive mechanism 40, the third drive mechanism 50, the lifting plate 17, and the pressure knife body 10 to move synchronously along the first direction.

[0085] When the second drive mechanism 40 is activated, it can drive the second support plate 16, the lifting plate 17, the third drive mechanism 50, and the pressure knife body 10 to move synchronously along the second direction.

[0086] When the third drive mechanism 50 is started, it can drive the lifting plate 17 and the pressure knife body 10 to move synchronously in the vertical direction, that is, along the z-axis direction.

[0087] In one implementation, the first drive mechanism 30 and the third drive mechanism 50 can form a pressure knife drive mechanism. Specifically, after adjusting the distance between the two pressure knife bodies 10 along the second direction by the second drive mechanism 40, the first drive mechanism 30 and the third drive mechanism 50 cooperate to drive the pressure knife bodies 10 to perform actions such as retraction, lifting, forward movement, and pressing down, and through the above actions, they form a pressing action and a pulling action.

[0088] In one embodiment, the stacking platform further includes an electrode clamping member 60; the electrode clamping member 60 is used to clamp the electrode on the placement platform 21; the electrode clamping member 60 is fixedly connected to the pressing knife body 10 so as to operate synchronously with the pressing knife mechanism.

[0089] Specifically, when the pressing mechanism includes two pressing bodies 10, the electrode clamping member 60 can be set on any set of pressing blades in the same pressing mechanism. Specifically, it can be set between the two pressing bodies 10 and fixedly connected to one of the pressing bodies 10, so that when pressing the material sheet, the electrode and the material sheet can be pressed simultaneously, thereby improving the stacking speed.

[0090] In one embodiment, the stacking platform further includes a vertical drive mechanism 70; the output end of the vertical drive mechanism 70 is connected to the placement platform 21 and is used to drive the placement platform 21 to move in the vertical direction.

[0091] The height of the placement platform 21 can be adjusted by the vertical drive mechanism 70 to adjust the stacking position.

[0092] In one implementation, the vertical drive mechanism 70 can also be configured to drive the sheet upward during the stacking process, so as to interact with the third drive mechanism 50 to press the sheet together.

[0093] In one embodiment, see Figure 3 and Figure 7 The placement platform 21 is provided with multiple adsorption zones 211; the adsorption zones 211 are provided with vacuum adsorption holes.

[0094] Specifically, an E-shaped placement plate 212 can be installed on the placement platform 21; the E-shaped structure of the adsorption zone 211 and the placement plate 212 is staggered. The adsorption zone 211 can enhance the connection stability between the material sheet and the placement platform.

[0095] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A press knife for preventing material sheet deviation, characterized by, include: Pressing knife body (10); The pressure knife body (10) includes a connecting end (11) and a pressing end (12). The thickness of the pressing end (12) is less than the thickness of the connecting end (11); The length of the clamping end (12) is less than the length of the connecting end (11).

2. The anti-sheet walk press knife according to claim 1, wherein The outer periphery of the pressing end (12) is provided with a thickness reduction zone (121).

3. The anti-sheet-creep press knife of claim 1, wherein, The pressing knife body (10) includes a reinforcing section (13); The reinforcing section (13) is disposed between the connecting end (11) and the pressing end (12); The thickness of the reinforcing section (13) decreases from the connecting end (11) toward the pressing end (12).

4. The anti-sheet walk press knife of claim 1, wherein, The thickness of the pressing end (12) is less than or equal to 1 / 3 of the thickness of the connecting end (11); The length of the clamping end (12) is less than or equal to 1 / 2 of the length of the connecting end (11).

5. The anti-sheet-creep press knife of claim 1 wherein, The pressing end (12) is provided with a detection hole (14) that runs through the thickness direction.

6. A stack, characterized in that include: Stacking platform (20) and several pressing mechanisms; The pressing mechanism includes the pressing knife as described in any one of claims 1 to 5; The stacking platform (20) is provided with a placement platform (21) for placing the material pieces. The pressing knife body (10) in the pressing knife is movably disposed on the stacking platform body (20); The pressing body (10) is used to press the material sheet on the placement table (21).

7. The stack of claim 6, wherein, It also includes a first drive mechanism (30) and a second drive mechanism (40); The pressing mechanism includes two, and the two pressing mechanisms are arranged on both sides of the placement platform (21) along the first direction; The output end of the first driving mechanism (30) is connected to the two pressing mechanisms, which are used to drive the two pressing mechanisms to move closer or further away from each other along the first direction; The pressing mechanism includes two sets of pressing blades; The two sets of pressure knives are arranged on both sides of the placement platform (21) along the second direction; The output end of the second drive mechanism (40) is connected to the two pressure knives, which are used to drive the two pressure knives to move closer to or further away from each other along the second direction; The first direction and the second direction are located on a horizontal plane and are perpendicular to each other.

8. The stack of claim 7, wherein, It also includes a third drive mechanism (50) and a tab clamping element (60); The electrode clamping member (60) is used to clamp the electrode on the placement platform (21); The output end of the third driving mechanism (50) is connected to the pressing mechanism and is used to drive the pressing mechanism to move in the vertical direction; The electrode clamping member (60) is fixedly connected to the pressure knife body (10).

9. The stack of claim 6, wherein, It also includes a vertical drive mechanism (70); The output end of the vertical drive mechanism (70) is connected to the placement platform (21) and is used to drive the placement platform (21) to move in the vertical direction.

10. The stacking platform according to claim 6, characterized in that, The placement platform (21) is provided with multiple adsorption zones (211); The adsorption zone (211) is provided with vacuum adsorption holes.

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