Cutting mechanism and battery cell winding machine

Abstract

The application relates to the technical field of battery processing equipment, in particular to a cutting mechanism and a battery cell winding machine. The cutting mechanism comprises a support, a first cutting assembly, a first cutting knife seat and a first cutting knife, the first cutting knife being arranged in the first cutting knife seat, a second cutting assembly, a second cutting knife seat and a second cutting knife, the second cutting knife being arranged in the second cutting knife seat, a first guide mechanism and a driving mechanism, the driving mechanism comprising a driving piece, a first crank and a second crank, the first crank being rotatably arranged on the support, the first cutting knife seat being rotatably connected to the first crank, the second crank being rotatably arranged on the support, the second cutting knife seat being rotatably connected to the second crank, and the driving piece being in transmission connection with the first crank and the second crank. The cutting mechanism provided by the application can cut off the material belt without stopping and the cut has no burrs, so that the efficiency of the battery cell winding machine in processing the battery cell can be improved and the quality of the battery cell can be improved.

Description

Technical Field

[0001] This application relates to the field of battery processing equipment technology, and in particular to a cutting mechanism and a cell winding machine. Background Technology

[0002] When processing battery cells using a cell winding machine, there is usually a need to cut the electrode sheets during transport. In related technologies, to ensure a relatively clean cut, the cutting mechanism typically stops the electrode sheets from transport before cutting them. However, stopping the electrode sheets from transport affects the transport efficiency, leading to a slower overall cell processing efficiency for the cell winding machine. Utility Model Content

[0003] This application discloses a cutting mechanism and a battery cell winding machine, which can cut the material strip without stopping the machine and the cut is burr-free. Therefore, it can improve the efficiency of battery cell winding machine in processing battery cells while improving the quality of battery cells.

[0004] To achieve the above objectives, firstly, this application discloses a cutting mechanism, comprising:

[0005] Support;

[0006] A first cutting assembly, comprising a first cutter holder and a first cutter, wherein the first cutter is disposed on the first cutter holder;

[0007] The second cutting assembly includes a second cutter holder and a second cutter, wherein the second cutter is disposed on the second cutter holder;

[0008] A first guide mechanism, wherein at least one of the first cutter holder and the second cutter holder is slidably disposed on the first guide mechanism along a first direction, and the cutting edges of the first cutter and the cutting edges of the second cutter are opposite to each other along the first direction; and,

[0009] The drive mechanism includes a drive member, a first crank, and a second crank. The first crank is rotatably mounted on the support, and the first cutter holder is rotatably connected to the first crank. The second crank is rotatably mounted on the support, and the second cutter holder is rotatably connected to the second crank. The drive member is connected to the first crank and the second crank for transmission.

[0010] Since at least one of the first and second cutter holders is slidably disposed on the first guide mechanism along a first direction, the first cutter is disposed on the first cutter holder, the second cutter is disposed on the second cutter holder, and the cutting edges of the first and second cutters are opposite to each other along the first direction, and since the first crank is rotatably disposed on the support, the first cutter holder is rotatably connected to the first crank, the second crank is rotatably disposed on the support, and the second cutter holder is rotatably connected to the second crank, and the driving component is respectively connected to the first and second cranks, therefore, when it is necessary to cut along the second direction using this cutting mechanism... When conveying a conveyor belt in a certain direction, the drive unit can simultaneously drive the first and second cutters to move along the conveyor belt in a second direction, and also drive the cutting edges of the first and second cutters to move closer together in a first direction to cut the conveyor belt. In other words, the first and second cutters move along the conveyor belt in the second direction while simultaneously moving closer together in the first direction to cut the conveyor belt. This achieves the goal of cutting the conveyor belt while it is being conveyed in the second direction, eliminating the need to stop the conveyor belt before cutting, thus improving conveyor efficiency. Furthermore, the movement trajectory of the cutting edges of the first and second cutters can be circular, achieving the purpose of cutting the conveyor belt while drawing a circle. This results in high cutting efficiency, simple motion control, small space requirements, and a more compact structure.

[0011] Furthermore, since at least one of the first and second cutter holders is slidably disposed on the first guide mechanism along the first direction, the cutting edges of both the first and second cutters can reciprocate along a defined first direction. As a result, the included angles between the cutting edges of the first and second cutters and the surface of the material strip are fixed and do not change due to the conveying of the material strip. This results in a neat cut after the material strip is cut by the cutting edges of the first and second cutters, without burrs or other defects.

[0012] Based on this, when the cutting mechanism is applied to a battery cell winding machine, and the aforementioned strip is understood as an electrode sheet, it can obviously improve the electrode sheet conveying efficiency and cutting efficiency. It can also simplify motion control, make the structure more compact, and make the electrode sheet cut neater. In this way, it can improve the efficiency of battery cell winding machine in processing battery cells, improve the quality of battery cells, reduce the area occupied by battery cell winding machine, and reduce the difficulty of motion control of battery cell winding machine.

[0013] Optionally, the driving member is used to drive the first crank and the second crank to rotate relative to the support, so as to drive the first cutter holder and the second cutter holder to move along the second direction, and to drive the first cutter holder and the second cutter holder to move along the first direction so that the cutting edge of the first cutter and the cutting edge of the second cutter move closer to or further away from each other along the first direction.

[0014] Optionally, the cutting mechanism further includes:

[0015] The second guide mechanism includes a first sliding member, which is slidably disposed on the support along a second direction. The first guide mechanism is disposed on the first sliding member, and the first cutter seat and the second cutter seat are both slidably disposed on the first guide mechanism along the first direction.

[0016] Since the first sliding member is slidably disposed on the support along the second direction, and both the first cutter seat and the second cutter seat are disposed on the first sliding member, on the one hand, under the guiding action of the first sliding member, the first cutter seat and the second cutter seat can slide more smoothly and stably relative to the support along the second direction.

[0017] On the other hand, the first cutter holder and the second cutter holder can share the same first sliding member, which makes the entire cutting mechanism more compact and lower in cost.

[0018] Optionally, the second guiding mechanism further includes:

[0019] The second sliding member is slidably disposed on the support along the second direction. The first ends of the first cutter seat and the second cutter seat are both disposed on the first sliding member, and the second ends of the first cutter seat and the second cutter seat opposite to the first ends are both disposed on the second sliding member.

[0020] When the second guide mechanism also includes a second sliding member, since the first ends of the first cutter seat and the second cutter seat are both disposed on the first sliding member, and the second ends of the first cutter seat and the second cutter seat opposite to the first ends are both disposed on the second sliding member, both ends of the first cutter seat and the second cutter seat can be guided, thereby making the first cutter seat and the second cutter seat slide more smoothly and stably relative to the support along the second direction.

[0021] Optionally, the first guiding mechanism includes a first guide rod, which is disposed on the first sliding member and extends along the first direction, and both the first cutter seat and the second cutter seat are slidably sleeved on the first guide rod.

[0022] Since both the first cutter holder and the second cutter holder can be slidably sleeved on the first guide rod, and the first guide rod is disposed on the first sliding member and extends along the first direction, the first guide rod can guide the first cutter holder and the second cutter holder to slide along the first direction, making the first cutter holder and the second cutter holder slide more smoothly and stably along the first direction.

[0023] Optionally, the first guiding mechanism further includes a second guide rod.

[0024] The second guide rod is disposed on the second sliding member and extends along the first direction, and both the first cutter seat and the second cutter seat can be slidably sleeved on the second guide rod.

[0025] Since both the first cutter holder and the second cutter holder can be slidably mounted on the second guide rod, in addition to being guided to slide along the first direction by the first guide rod, they can also be guided to slide along the first direction by the second guide rod. Therefore, the sliding of the first cutter holder and the second cutter holder along the first direction can be made smoother and more stable.

[0026] Optional:

[0027] The first cutter holder is rotatably connected to the first crank about a first axis. The plane passing through the first axis and parallel to the first direction is the first plane, and the first plane passes through the cutting edge of the first cutter.

[0028] And / or,

[0029] The second cutter holder is rotatably connected to the second crank about the second axis. The plane passing through the second axis and parallel to the first direction is the second plane, which passes through the cutting edge of the second cutter.

[0030] Since the first plane passes through the cutting edge of the first cutter, when the driving member drives the first cutter holder to move along the second direction and the first direction via the first crank, the movement trajectory of the cutting edge of the first cutter can be a first circular trajectory, which can make the structure of the cutting mechanism more compact and occupy less space.

[0031] Since the second plane passes through the cutting edge of the second cutter, when the driving member drives the second cutter holder to move along the second direction and the first direction via the second crank, the movement trajectory of the cutting edge of the second cutter can be a second circular trajectory, which can make the structure of the cutting mechanism more compact and occupy less space.

[0032] Optionally, the drive mechanism further includes:

[0033] The transmission mechanism includes a first gear and a second gear. The first gear is connected to the first crank, and the second gear is connected to the second crank. The first gear meshes with the second gear, and the driving member is connected to the first gear in a transmission connection.

[0034] Since the first gear is connected to the first crank and the second gear is connected to the second crank, the first gear meshes with the second gear, and the driving component is connected to the first gear in a transmission connection. Therefore, when the driving component drives the first gear to rotate, the first gear can drive the first crank to rotate at the same time as the first crank, and can also drive the second crank to rotate through the second gear. The same driving component can drive the second crank and the first crank to rotate synchronously, which can achieve the purpose of saving the number of driving components.

[0035] Optionally, the drive mechanism further includes:

[0036] A third crank, rotatably mounted on the support, a first end of the first cutter holder rotatably connected to the first crank, a second end of the first cutter holder rotatably connected to the third crank, the first end of the first cutter holder and the second end of the first cutter holder being opposite to each other; and

[0037] A fourth crank is rotatably mounted on the support. The first end of the second cutter holder is rotatably connected to the second crank, and the second end of the second cutter holder is rotatably connected to the fourth crank. The first end of the second cutter holder is opposite to the second end of the second cutter holder.

[0038] Since, in addition to the first end of the first cutter holder being rotatably connected to the first crank and the first end of the second cutter holder being rotatably connected to the second crank, the second end of the first cutter holder is rotatably connected to the third crank and the second end of the second cutter holder is rotatably connected to the fourth crank, it is possible to connect cranks to both ends of the first cutter holder and both ends of the second cutter holder. In this way, both ends of the first cutter holder and both ends of the second cutter holder can be guided by the cranks. On the one hand, this makes the movement of the first cutter holder and the second cutter holder more stable, and on the other hand, it makes the entire cutting mechanism more robust and durable.

[0039] Optionally, the transmission mechanism further includes a third gear and a fourth gear, the third gear being connected to the third crank and the fourth gear being connected to the fourth crank, the third gear meshing with the fourth gear.

[0040] Since the third gear meshes with the fourth gear, and the third gear is connected to the third crank and the fourth gear is connected to the fourth crank, the third gear and the fourth gear play a supporting and guiding role in the rotation of the third crank and the fourth crank. On the one hand, this makes the movement of the first cutter holder and the second cutter holder more stable, and on the other hand, it makes the entire cutting mechanism more robust and durable.

[0041] Optionally, along the third direction, the distance between the cutting edge of the first cutter and the cutting edge of the second cutter gradually increases along the first direction.

[0042] In this way, when the cutting edges of the first cutter and the second cutter approach each other along the first direction, the cutting edges of the first cutter and the second cutter will gradually contact and cut the material strip, instead of both cutting edges contacting and cutting the material strip at the same time. It has been discovered that this method can make the cut of the material strip smoother and less prone to burrs.

[0043] Optional:

[0044] The first cutter is provided with a first suction hole; and / or, the second cutter is provided with a second suction hole.

[0045] By setting a first adsorption hole on the first cutter and a second adsorption hole on the second cutter, the dust generated during the cutting of the material strip can be adsorbed in time, making the working environment of the cutting mechanism cleaner and thus avoiding dust contamination of the cutting mechanism or the material strip.

[0046] Optionally, the cutting mechanism further includes:

[0047] A guide component is disposed on the first slider;

[0048] The guide component has a guide slot that extends through the guide component along the second direction.

[0049] Optionally, the guide assembly further includes a clearance slot extending through the guide assembly along the first direction, the clearance slot being used to allow the cutting edges of the first cutter and the second cutter to enter from opposite ends of the clearance slot along the first direction.

[0050] Because the guide assembly has a guide slot that runs through it in the second direction, the guide assembly can guide the material belt to move smoothly in the second direction through the guide slot, making the movement of the material belt more stable and less prone to shaking.

[0051] Since the clearance seam extends through the guide assembly in the first direction, the clearance seam can avoid the cutting edges of the first cutter and the second cutter from hitting the guide assembly and being damaged.

[0052] Optionally, the guiding component includes:

[0053] A first guide plate and a second guide plate are both disposed on the first sliding member, and the first guide plate and the second guide plate are spaced apart from each other along the second direction.

[0054] The third guide plate and the fourth guide plate are both disposed on the first sliding member. The third guide plate and the fourth guide plate are spaced apart from each other along the second direction. The third guide plate and the first guide plate are spaced apart from each other along the first direction to form a third gap. The fourth guide plate and the second guide plate are spaced apart from each other along the first direction to form a fourth gap.

[0055] The third gap and the fourth gap together form the guide gap.

[0056] As can be seen, when the guide assembly includes a first guide plate, a second guide plate, a third guide plate, and a fourth guide plate, the above-mentioned guide seam can be formed by the cooperation of multiple guide plates in position. The implementation method is very simple and can reduce the cost of the guide assembly.

[0057] Optionally, at least one of the first guide plate, the second guide plate, the third guide plate, and the fourth guide plate is provided with adsorption holes.

[0058] By providing adsorption holes in at least one of the first, second, third, and fourth guide plates, dust generated during the cutting of the material strip can be adsorbed in a timely manner, making the working environment of the cutting mechanism cleaner and thus preventing dust from contaminating the cutting mechanism or the material strip.

[0059] Optionally, the second guide plate is provided with a third adsorption hole, and the third guide plate is provided with a fourth adsorption hole.

[0060] By setting a third adsorption hole on the second guide plate and a fourth adsorption hole on the third guide plate, the dust generated during the cutting of the material strip can be adsorbed in time, making the working environment of the cutting mechanism cleaner and thus avoiding dust contamination of the cutting mechanism or the material strip.

[0061] In addition, since the second guide plate and the third guide plate are located on both sides of the material belt along the first direction, that is, the second guide plate and the third guide plate are located on both sides of the thickness direction of the material belt, the third adsorption hole and the fourth adsorption hole are located on both sides of the thickness direction of the material belt, so that the dust on both sides of the thickness direction of the material belt can be adsorbed cleanly.

[0062] Optionally, along the direction from the second guide plate to the first guide plate, the distance between the second guide plate and the fourth guide plate gradually increases along the first direction.

[0063] In this way, the width of the fourth gap between the second guide plate and the fourth guide plate gradually increases along the first direction to form a trumpet shape, which is conducive to the material strip entering the fourth gap between the second guide plate and the fourth guide plate. This can avoid the material strip colliding with the end of the second guide plate near the first guide plate, and also avoid the material strip colliding with the end of the fourth guide plate near the third guide plate.

[0064] Secondly, this application discloses a battery cell winding machine, including the cutting mechanism described in any of the first aspects above.

[0065] On the one hand, the cutting mechanism can cut the material strip during the conveying process, which can improve the conveying efficiency of the material strip. On the other hand, it can make the cut of the material strip smoother and prevent burrs. Furthermore, the motion control is simple and the structure is more compact. Based on this, when the battery cell winding machine includes a cutting mechanism, the battery cell winding machine can process battery cells with higher efficiency and better quality, with less burrs. In addition, it can also reduce the footprint of the battery cell winding machine and reduce the difficulty of motion control.

[0066] Compared with the prior art, the beneficial effects of this application are as follows:

[0067] In this application, since at least one of the first cutter holder and the second cutter holder is slidably disposed on the first guide mechanism along a first direction, the first cutter is disposed on the first cutter holder, the second cutter is disposed on the second cutter holder, and the cutting edges of the first cutter and the second cutter are opposite to each other along the first direction, and since the first crank is rotatably disposed on the support, the first cutter holder is rotatably connected to the first crank, the second crank is rotatably disposed on the support, and the second cutter holder is rotatably connected to the second crank, and the driving component is respectively connected to the first crank and the second crank for transmission, therefore, when it is necessary to cut along the first guide mechanism, the first cutter holder is slidably disposed on the first guide mechanism, the second cutter holder is rotatably connected to the second crank, and the second cutter holder is rotatably connected to the second crank, the second cutter holder is rotatably connected to the second crank, and the driving component is respectively connected to the first crank and the second crank for transmission, therefore, when it is necessary to cut along the first guide mechanism, the second cutter holder is slidably disposed on the first guide mechanism, the second cutter holder is rotatably disposed on the first cutter holder, the second cutter holder is rotatably connected to the second crank, and the second cutter holder is rotatably connected to the second crank, the second cutter holder is rotatably connected to the second crank, the second cutter holder is rotatably disposed on the support, the second cutter holder is rotatably connected to the second crank, and the second cutter holder is rotatably connected to the second crank, the second cutter holder is rotatably disposed on the support, the second cutter holder is rotatably disposed on the support, the second cutter holder is rotatably disposed on the support, the second cutter holder is rotatably connected to the second crank, and the second cutter holder is rotatably connected to the second crank, the second cutter holder is rotatably disposed on the support, the second cutter holder is When the material belt is conveyed in the second direction, the drive unit can simultaneously drive the first and second cutters to move along the second direction with the material belt, and also drive the cutting edges of the first and second cutters to approach each other along the first direction to cut the material belt. In other words, the first and second cutters move along the second direction with the material belt while simultaneously approaching each other along the first direction to cut the material belt. This achieves the purpose of cutting the material belt during its conveying along the second direction, eliminating the need to stop the conveyor before cutting, thus improving the conveying efficiency. Furthermore, the movement trajectory of the cutting edges of the first and second cutters can be circular, achieving the purpose of cutting the material belt while drawing a circle. This results in high cutting efficiency, simple motion control, small space requirements, and a more compact structure.

[0068] Furthermore, since at least one of the first and second cutter holders is slidably disposed on the first guide mechanism along the first direction, the cutting edges of both the first and second cutters can reciprocate along a defined first direction. As a result, the included angles between the cutting edges of the first and second cutters and the surface of the material strip are fixed and do not change due to the conveying of the material strip. This results in a neat cut after the material strip is cut by the cutting edges of the first and second cutters, without burrs or other defects.

[0069] Based on this, when the cutting mechanism is applied to a battery cell winding machine, and the aforementioned strip is understood as an electrode sheet, it can obviously improve the electrode sheet conveying efficiency and cutting efficiency. It can also simplify motion control, make the structure more compact, and make the electrode sheet cut neater. In this way, it can improve the efficiency of battery cell winding machine in processing battery cells, improve the quality of battery cells, reduce the area occupied by battery cell winding machine, and reduce the difficulty of motion control of battery cell winding machine. Attached Figure Description

[0070] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments 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.

[0071] Figure 1 This is a schematic diagram of the structure of a cutting mechanism provided in one embodiment of this application;

[0072] Figure 2 yes Figure 1 A cross-sectional view of the cutting mechanism at position AA;

[0073] Figure 3 yes Figure 1 A cross-sectional view of the cutting mechanism at position CC;

[0074] Figure 4 yes Figure 1 A schematic diagram of the cutting mechanism in the middle when the cutting edge of the first cutter and the cutting edge of the second cutter approach each other along the first direction;

[0075] Figure 5 yes Figure 4 A cross-sectional view of the cutting mechanism at position BB;

[0076] Figure 6 yes Figure 1 A partial structural diagram of the cutting mechanism from another perspective;

[0077] Figure 7 yes Figure 2 A schematic diagram of the structure of the second guide plate;

[0078] Figure 8 This is a schematic diagram of the structure of a battery cell winding machine provided in one embodiment of this application.

[0079] Explanation of reference numerals in the attached figures:

[0080] 1-Support;

[0081] 2-First cutting assembly; 21-First cutter holder; 22-First cutter; 221-First suction hole; 321-Second suction hole; 23-First adjusting component;

[0082] 3-Second cutting assembly; 31-Second cutter holder; 32-Second cutter;

[0083] 4-Drive mechanism; 41-Drive component; 42-First crank; 43-Second crank; 44-Transmission mechanism; 441-First gear; 442-Second gear; 443-Third gear; 444-Fourth gear; 45-Third crank; 46-Fourth crank;

[0084] 5-Second guide mechanism; 51-First sliding member; 52-Second sliding member;

[0085] 6-First guide mechanism; 61-First guide rod; 62-Second guide rod;

[0086] 7-Guide assembly; 71-Guide slot; 711-Third slot; 712-Fourth slot; 72-Avoidance slot; 721-First slot; 722-Second slot; 73-First guide plate; 74-Second guide plate; 741-Third suction hole; 75-Third guide plate; 751-Fourth suction hole; 76-Fourth guide plate;

[0087] 100 - Cutting mechanism; 200 - Battery cell winding machine;

[0088] C1 - First circular trajectory; C2 - Second circular trajectory; O1 - First axis; O2 - Second axis. Detailed Implementation

[0089] 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 embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0090] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0091] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0092] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0093] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0094] Before explaining the technical solution of this application, the background technology of this application shall be explained first.

[0095] When processing battery cells using a cell winding machine, there is often a need to cut the electrode sheets during transport. In related technologies, the cutting mechanism typically stops the electrode sheet transport to ensure a clean cut before cutting it. However, stopping the electrode sheet transport affects the transport efficiency, leading to slower overall cell processing efficiency. Therefore, this application provides a novel cutting mechanism to address these issues.

[0096] The technical solution of this application will be described below with reference to specific embodiments and accompanying drawings.

[0097] Figure 1 This is a schematic diagram of the structure of a cutting mechanism 100 provided in one embodiment of this application. Figure 2 yes Figure 1 A cross-sectional view of the cutting mechanism 100 at position AA. Figure 3 yes Figure 1 A cross-sectional view of the cutting mechanism 100 at position CC.

[0098] See Figure 1 , Figure 2 and Figure 3The cutting mechanism 100 includes a support 1, a first cutting assembly 2, a second cutting assembly 3, a driving mechanism 4, and a first guiding mechanism 6. The first cutting assembly 2 includes a first cutter holder 21 and a first cutter 22, with the first cutter 22 disposed on the first cutter holder 21. The second cutting assembly 3 includes a second cutter holder 31 and a second cutter 32, with the second cutter 32 disposed on the second cutter holder 31. At least one of the first cutter holder 21 and the second cutter holder 31 is slidably disposed on the first guiding mechanism 6 along a first direction. The cutting edges of the first cutter 22 and the second cutter 32 are along the first direction (…). Figure 2 In the Z-axis direction, the drive mechanism 4 is mounted on the support 1 and connected to the first cutter holder 21 and the second cutter holder 31 respectively. Specifically, the drive mechanism 4 includes a drive member 41, a first crank 42 and a second crank 43. The first crank 42 is rotatably mounted on the support 1, the first cutter holder 21 is rotatably connected to the first crank 42, the second crank 43 is rotatably mounted on the support 1, and the second cutter holder 31 is rotatably connected to the second crank 43. The drive member 41 is connected to the first crank 42 and the second crank 43 respectively.

[0099] Figure 4 yes Figure 1 A schematic diagram of the cutting mechanism 100 when the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 approach each other along a first direction. Figure 5 yes Figure 4 A cross-sectional view of the cutting mechanism 100 at position BB.

[0100] The drive mechanism 4 is used to drive the first cutter holder 21 and the second cutter holder 31 to move in the second direction, so as to drive the first cutter 22 and the second cutter 32 to move in the second direction. The drive mechanism 4 is also used to drive the first cutter holder 21 and the second cutter holder 31 to move in the first direction, so as to drive the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 to move closer to each other in the first direction. Figure 5 (in a neutral state) or far away ( Figure 2 (Mid-state).

[0101] Specifically, the drive member 41 is used to drive the first crank 42 and the second crank 43 to rotate relative to the support 1, so as to drive the first cutter holder 21 and the second cutter holder 31 to move along the second direction, and to drive the first cutter holder 21 and the second cutter holder 31 to move along the first direction so that the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 move closer or further away from each other along the first direction.

[0102] In this embodiment, when the cutting mechanism 100 cuts the strip L, firstly, the strip L can be made to move along the second direction ( Figure 3 (in the X-axis direction) and passes through the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 along the first direction ( Figure 2The gap (in the Z-axis direction) then, due to at least one of the first cutter holder 21 and the second cutter holder 31 along the first direction ( Figure 2 The first crank 42 is rotatably mounted on the support 1 (in the Z-axis direction), the first cutter holder 21 is rotatably connected to the first crank 42, the second crank 43 is rotatably mounted on the support 1, and the second cutter holder 31 is rotatably connected to the second crank 43. The driving member 41 is connected to the first crank 42 and the second crank 43 respectively. The cutting edges of the first cutter 22 and the second cutter 32 are along the first direction. Figure 2 The Z-axis direction is opposite.

[0103] Therefore, the driving component 41 can drive the first cutter holder 21 and the second cutter holder 31 to move synchronously along the second direction, thereby driving the first cutter 22 and the second cutter 32 to move along the second direction, so that the first cutter 22 and the second cutter 32 can follow the material belt L along the second direction. At the same time, the driving component 41 can also drive the first cutter holder 21 and the second cutter holder 31 along the first direction ( Figure 3 The blade moves along the Z-axis to drive the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 to approach each other along the first direction. When the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 approach each other along the first direction, the purpose of cutting the material strip L can be achieved.

[0104] After cutting the strip L, the drive unit 41 can drive the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 to move away from each other along a first direction, so as to prepare for the next time the drive unit 41 drives the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 to move closer to each other along the first direction to cut the strip L.

[0105] Among them, since at least one of the first cutter holder 21 and the second cutter holder 31 is along the first direction ( Figure 2 The first cutter 22 is slidably mounted on the first guide mechanism 6 (in the Z-axis direction), and the second cutter 32 is mounted on the first cutter holder 21. The cutting edges of the first cutter 22 and the second cutter 32 are aligned along the first direction (in the Z-axis direction). Figure 2In the Z-axis direction, the first crank 42 is rotatably mounted on the support 1, the first cutter holder 21 is rotatably connected to the first crank 42, the second crank 43 is rotatably mounted on the support 1, and the second cutter holder 31 is rotatably connected to the second crank 43. The driving member 41 is connected to the first crank 42 and the second crank 43 respectively. Therefore, when the cutting mechanism 100 needs to cut the material strip L conveyed along the second direction, the driving member 41 can drive the first cutter 22 and the second cutter 32 along the second direction. Moving along with the conveyor belt L, the first cutter 22 and the second cutter 32 can also be driven to approach each other along the first direction to cut the conveyor belt L. That is, the first cutter 22 and the second cutter 32 move along the second direction with the conveyor belt L while simultaneously approaching each other along the first direction to cut the conveyor belt L. This allows for cutting the conveyor belt L while it is being conveyed along the second direction, eliminating the need to stop conveying the conveyor belt L before cutting it, thus improving the conveying efficiency of the conveyor belt L. Furthermore, the movement trajectory of the cutting ends of the first cutter 22 and the second cutter 32 can be an arc. The cutting ends of the first cutter 22 and the second cutter 32 achieve the purpose of cutting the conveyor belt L while drawing a circle, resulting in high cutting efficiency, simple motion control, small space requirements, and a more compact structure.

[0106] In addition, since at least one of the first cutter holder 21 and the second cutter holder 31 is along the first direction ( Figure 2 The blade (in the Z-axis direction) is slidably disposed on the first guide mechanism 6, so that the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 can reciprocate along a determined first direction. In this way, the included angle between the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 and the surface of the material strip L is fixed (for example, 90°). This included angle will not change due to the conveying of the material strip L, so that the cut after the material strip L is cut by the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 is relatively neat and there will be no burrs.

[0107] Based on this, when the cutting mechanism 100 is applied to the battery cell winding machine 200, and the aforementioned strip L is understood as an electrode sheet, it can obviously improve the electrode sheet conveying efficiency and cutting efficiency. It can also simplify motion control, make the structure more compact, and make the electrode sheet cut neater. In this way, it can improve the battery cell processing efficiency of the battery cell winding machine 200, improve the battery cell quality, reduce the area occupied by the battery cell winding machine 200, and reduce the motion control difficulty of the battery cell winding machine 200.

[0108] Of course, in other embodiments, the strip L can also be other possible strip materials, and this embodiment does not limit this.

[0109] It should be noted that at least one of the first cutter holder 21 and the second cutter holder 31 is along the first direction ( Figure 2 The phrase "slidably disposed in the first guide mechanism 6 in the Z-axis direction" means that both the first cutter holder 21 and the second cutter holder 31 can be slidably disposed in the first guide mechanism 6, or one of the first cutter holder 21 and the second cutter holder 31 can be slidably disposed in the first guide mechanism 6.

[0110] In some embodiments, see Figure 1 and Figure 2 The cutting mechanism 100 also includes a second guiding mechanism 5, which includes a first sliding member 51. The first sliding member 51 is along a second direction ( Figure 3 The first cutter seat 21 and the second cutter seat 31 are both mounted on the first sliding member 51. The first cutting member 51 is slidably mounted on the support 1 in the X-axis direction.

[0111] Because the first slider 51 is along the second direction ( Figure 3 The first cutter seat 21 and the second cutter seat 31 are slidably disposed on the support 1 in the X-axis direction. Both the first cutter seat 21 and the second cutter seat 31 are disposed on the first sliding member 51. Therefore, under the guidance of the first sliding member 51, the first cutter seat 21 and the second cutter seat 31 can slide more smoothly and stably relative to the support 1 in the second direction.

[0112] On the other hand, the first cutter holder 21 and the second cutter holder 31 can share the same first sliding member 51, thereby making the entire cutting mechanism 100 more compact and lower in cost.

[0113] The first sliding member 51 can be slidably disposed on the support 1 in the second direction by means of a slide rail assembly. Of course, it can also be slidably disposed on the support 1 in the second direction by other means. This embodiment does not limit this.

[0114] To make the sliding of the first cutter holder 21 and the second cutter holder 31 relative to the support 1 more smooth and stable along the second direction, in some embodiments, see Figure 1 and Figure 4 The second guide mechanism 5 also includes a second sliding member 52, which is slidably disposed on the support 1 along the second direction. The first ends of the first cutter seat 21 and the second cutter seat 31 are both disposed on the first sliding member 51, and the second ends of the first cutter seat 21 and the second cutter seat 31 opposite to the first ends are both disposed on the second sliding member 52.

[0115] When the second guide mechanism 5 also includes a second sliding member 52, since the first ends of the first cutter seat 21 and the second cutter seat 31 are both disposed on the first sliding member 51, and the second ends of the first cutter seat 21 and the second cutter seat 31 opposite to the first ends are both disposed on the second sliding member 52, both ends of the first cutter seat 21 and the second cutter seat 31 can be guided, thereby making the first cutter seat 21 and the second cutter seat 31 slide more smoothly and stably relative to the support 1 in the second direction.

[0116] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The cutting mechanism 100 also includes a first guide mechanism 6, which includes a first guide rod 61. The first guide rod 61 is disposed on the first sliding member 51 and along a first direction ( Figure 2 Extending along the Z-axis, both the first cutter holder 21 and the second cutter holder 31 can be slidably sleeved on the first guide rod 61.

[0117] Since both the first cutter holder 21 and the second cutter holder 31 can be slidably sleeved on the first guide rod 61, and the first guide rod 61 is disposed on the first sliding member 51 and along the first direction ( Figure 2 Extending along the Z-axis, the first guide rod 61 can guide the first cutter holder 21 and the second cutter holder 31 to slide along the first direction, making the first cutter holder 21 and the second cutter holder 31 slide more smoothly and stably along the first direction.

[0118] The number of the first guide rods 61 can be one or more, for example, two or three, etc. This embodiment does not limit this.

[0119] When there are multiple first guide rods 61, see Figure 3 The first guide rod 61 can be arranged in an array along the second direction.

[0120] In some embodiments, see Figure 1 The first guide mechanism 6 also includes a second guide rod 62, which is disposed on the second sliding member 52 and extends along the first direction. The first cutter seat 21 and the second cutter seat 31 can be slidably sleeved on the second guide rod 62.

[0121] Since both the first cutter holder 21 and the second cutter holder 31 can be slidably sleeved on the second guide rod 62, in addition to guiding the first cutter holder 21 and the second cutter holder 31 to slide along the first direction through the first guide rod 61, the second guide rod 62 can also guide the first cutter holder 21 and the second cutter holder 31 to slide along the first direction. Therefore, the first cutter holder 21 and the second cutter holder 31 can slide more smoothly and stably along the first direction.

[0122] The structure of the second guide rod 62 can be similar to that of the first guide rod 61. When there are multiple second guide rods 62, the arrangement of the multiple second guide rods 62 can be similar to the arrangement of the multiple first guide rods 61. This embodiment will not be described in detail here.

[0123] In some embodiments, see Figure 1 and Figure 6 , Figure 6 yes Figure 1 A partial structural schematic diagram of the cutting mechanism 100 from another perspective shows that the driving mechanism 4 includes a driving member 41, a first crank 42, and a second crank 43. The driving member 41 is mounted on a support 1. The first crank 42 is rotatably mounted on the support 1. A first cutter holder 21 is rotatably connected to the first crank 42. The second crank 43 is rotatably mounted on the support 1. A second cutter holder 31 is rotatably connected to the second crank 43. The driving member 41 is connected to both the first crank 42 and the second crank 43 in a transmission connection. The driving member 41 drives the first crank 42 and the second crank 43 to rotate relative to the support 1, thereby moving the first cutter holder 21 and the second cutter holder 31 along a second direction and along a first direction.

[0124] Since the driving component 41 is connected to the first crank 42 and the second crank 43 respectively, the first crank 42 is rotatably mounted on the support 1, the first cutter holder 21 is rotatably connected to the first crank 42, the second crank 43 is rotatably mounted on the support 1, and the second cutter holder 31 is rotatably connected to the second crank 43, therefore, when the driving component 41 drives the first crank 42 and the second crank 43 to rotate, the rotational motion of the driving component 41 can be converted through the first crank 42 and the second crank 43 into the first cutter holder 21 and the second cutter holder 31 moving along the second direction respectively. Figure 6 (in the Y-axis direction) and the first direction ( Figure 6 The movement can be in two directions (Z-axis direction). That is, a single drive unit can drive the first cutter holder 21 and the second cutter holder 31 to move in two directions. The structural design is very ingenious, thereby saving the number of drive units 41.

[0125] In some embodiments, see Figure 3 and Figure 6 The first cutter holder 21 is rotatably connected to the first crank 42 around the first axis O1. The plane passing through the first axis O1 and parallel to the first direction is the first plane, and the first plane passes through the cutting edge of the first cutter 22.

[0126] Since the first plane passes through the blade tip of the first cutter 22, when the drive member 41 drives the first cutter holder 21 to move along the second direction and the first direction through the first crank 42, the movement trajectory of the blade tip of the first cutter 22 can be the first circular trajectory C1, which can make the structure of the cutting mechanism 100 more compact and occupy less space.

[0127] In some embodiments, see Figure 3 and Figure 6 The second cutter holder 31 is rotatably connected to the second crank 43 around the second axis O2. The plane passing through the second axis O2 and parallel to the first direction is the second plane, which passes through the cutting edge of the second cutter 32.

[0128] Since the second plane passes through the blade tip of the second cutter 32, when the drive member 41 drives the second cutter holder 31 to move along the second direction and the first direction through the second crank 43, the movement trajectory of the blade tip of the second cutter 32 can be a second circular trajectory C2, which can make the structure of the cutting mechanism 100 more compact and occupy less space.

[0129] In some embodiments, see Figure 1 The drive mechanism 4 also includes a transmission mechanism 44, which includes a first gear 441 and a second gear 442. The first gear 441 is connected to the first crank 42, and the second gear 442 is connected to the second crank 43. The first gear 441 and the second gear 442 mesh, and the drive member 41 is connected to the first gear 441 in a transmission connection. The drive member 41 is used to drive the first gear 441 to rotate, so as to drive the first crank 42 and the second crank 43 to rotate relative to the support 1.

[0130] Since the first gear 441 is connected to the first crank 42 and the second gear 442 is connected to the second crank 43, the first gear 441 and the second gear 442 mesh, and the driving member 41 is connected to the first gear 441 in a transmission connection, when the driving member 41 drives the first gear 441 to rotate, the first gear 441 can drive the first crank 42 to rotate at the same time, and can also drive the second crank 43 to rotate through the second gear 442. The same driving member 41 can drive the second crank 43 and the first crank 42 to rotate simultaneously, which can achieve the purpose of saving the number of driving members 41.

[0131] In some embodiments, see Figure 1The drive mechanism 4 also includes a third crank 45 and a fourth crank 46, wherein the third crank 45 is rotatably mounted on the support 1, at the first end of the first cutter holder 21. Figure 1 The right end of the first cutter holder 21 is rotatably connected to the first crank 42, and the second end of the first cutter holder 21 ( Figure 1 The left end of the first cutter holder 21 is rotatably connected to the third crank 45, with the first end of the first cutter holder 21 opposite to the second end of the second cutter holder 21. The fourth crank 46 is rotatably mounted on the support 1, and the first end of the second cutter holder 31 (… Figure 1 The right end of the second cutter holder 31 is rotatably connected to the second crank 43, and the second end of the second cutter holder 31 ( Figure 1 The left end of the second cutter holder 31 is rotatably connected to the fourth crank 46, and the first end of the second cutter holder 31 is opposite to the second end of the second cutter holder 31.

[0132] Because, apart from the first end of the first cutter holder 21 ( Figure 1 The right end of the first cutter holder 21 is rotatably connected to the first crank 42 and the first end of the second cutter holder 31. Figure 1 The right end of the second cutter holder 31 is rotatably connected to the outside of the second crank 43, and the second end of the first cutter holder 21 ( Figure 1 The left end of the first cutter holder 21 is rotatably connected to the third crank 45 and the second end of the second cutter holder 31. Figure 1 The left end of the second cutter seat 31 is rotatably connected to the fourth crank 46. Therefore, both ends of the first cutter seat 21 and both ends of the second cutter seat 31 are connected to cranks. In this way, both ends of the first cutter seat 21 and both ends of the second cutter seat 31 can be guided by the cranks. On the one hand, the movement of the first cutter seat 21 and the second cutter seat 31 is more stable. On the other hand, the entire cutting mechanism 100 is more robust and durable.

[0133] In some embodiments, see Figure 1 The transmission mechanism 44 also includes a third gear 443 and a fourth gear 444. The third gear 443 is connected to the third crank 45, and the fourth gear 444 is connected to the fourth crank 46. The third gear 443 and the fourth gear 444 mesh.

[0134] Since the third gear 443 meshes with the fourth gear 444, and the third gear 443 is connected to the third crank 45 and the fourth gear 444 is connected to the fourth crank 46, the third gear 443 and the fourth gear 444 play a supporting and guiding role in the rotation of the third crank 45 and the fourth crank 46. On the one hand, this makes the movement of the first cutter holder 21 and the second cutter holder 31 more stable, and on the other hand, it makes the entire cutting mechanism 100 more robust and durable.

[0135] In some embodiments, see Figure 2 and Figure 3 Along the third direction ( Figure 2 (in the Y-axis direction), the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 are along the first direction ( Figure 2 The spacing between the three directions (in the Z-axis direction) gradually increases, and the third direction is perpendicular to the second and first directions, respectively.

[0136] In this way, when the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 approach each other along the first direction, the cutting edges of the first cutter 22 and the second cutter 32 will gradually come into contact (similar to scissors) to cut the material strip L, instead of both cutting edges coming into contact and cutting the material strip L at the same time. It has been discovered that this method can make the cut of the material strip L smoother and less prone to burrs.

[0137] In some embodiments, see Figure 2 and Figure 3 The first cutting assembly 2 also includes a first adjusting member 23, the first adjusting member 23 being along a first direction ( Figure 2 The first cutter 22 is reciprocally adjustable in the central axis direction and is located on the first cutter holder 21. The first cutter 22 is located on the first adjusting member 23.

[0138] Because the first adjusting member 23 is along the first direction ( Figure 2 The first cutter 22 is reciprocally adjustable in the central axis direction and is located on the first adjusting member 23. Therefore, by adjusting the first adjusting member 23 in the first direction, the position of the cutting edge of the first cutter 22 can be flexibly adjusted in the first direction, thereby ensuring that the cutting edge of the first cutter 22 is on the preset trajectory (such as the first circular trajectory C1), and thus ensuring that the cutting edge of the first cutter 22 can cut the material strip L.

[0139] In some embodiments, the second cutting assembly 3 further includes a second adjusting member, and the second cutter 32 may be disposed on the second adjusting member.

[0140] The structure and installation method of the second adjusting member can be similar to those of the first adjusting member 23, and will not be described in detail here.

[0141] In some embodiments, see Figure 1 and Figure 2 The first cutter 22 is provided with a first adsorption hole 221; and / or the second cutter 32 is provided with a second adsorption hole 321.

[0142] By setting a first adsorption hole 221 on the first cutter 22 and a second adsorption hole 321 on the second cutter 32, the dust generated during the cutting of the material strip L can be adsorbed in a timely manner through the first adsorption hole 221 and the second adsorption hole 321, making the working environment of the cutting mechanism 100 cleaner and thus avoiding dust contamination of the cutting mechanism 100 or the material strip L.

[0143] In some embodiments, see Figure 3 The cutting mechanism 100 also includes a guide component 7, which is positioned along a second direction ( Figure 3 The support 1 is slidably disposed in the X-axis direction and along the first direction ( Figure 3 The drive mechanism 4 is connected to the guide assembly 7 (located between the first cutting assembly 2 and the second cutting assembly 3 in the Z-axis direction). The guide assembly 7 has a guide slot 71 that extends through the guide assembly 7 in the second direction and an avoidance slot 72 that extends through the guide assembly 7 in the first direction.

[0144] The drive mechanism 4 is also used to drive the guide assembly 7 to move along the second direction, so as to move the clearance slot 72 along the second direction. The guide slot 71 is used for the feed belt L to pass through the guide assembly 7 along the second direction, and the clearance slot 72 is used for the cutting edge of the first cutter 22 and the cutting edge of the second cutter 32 to enter from both ends of the clearance slot 72 along the first direction.

[0145] Since the guide assembly 7 has a guide slot 71 that runs through the guide assembly 7 in the second direction, the guide assembly 7 can guide the material belt L to move smoothly in the second direction through the guide slot 71, making the movement of the material belt L more stable and less prone to shaking.

[0146] Since the clearance seam 72 passes through the guide component 7 in the first direction, the clearance seam 72 can avoid the blade tip of the first cutter 22 and the blade tip of the second cutter 32 from hitting the guide component 7, thus preventing the blade tips of the first cutter 22 and the second cutter 32 from being damaged.

[0147] In some embodiments, see Figure 1 The guide component 7 can be connected between the second slider 52 and the first slider 51. In this way, the second slider 52 and the first slider 51 can guide the sliding of the guide component 7 in the second direction, making the sliding of the guide component 7 in the second direction more stable.

[0148] There are multiple ways to implement the aforementioned guide component 7. In one possible implementation, see [link to relevant documentation]. Figure 3The guide assembly 7 includes a first guide plate 73, a second guide plate 74, a third guide plate 75 and a fourth guide plate 76. The second guide plate 74, the first guide plate 73, the third guide plate 75 and the fourth guide plate 76 are all slidably disposed on the support 1 along the second direction. The first guide plate 73 and the second guide plate 74 are spaced apart and opposite each other along the second direction to form a first gap 721.

[0149] The third guide plate 75 and the fourth guide plate 76 are spaced apart and opposite each other along the second direction to form a second gap 722. The third guide plate 75 and the first guide plate 73 are spaced apart and opposite each other along the first direction to form a third gap 711. The fourth guide plate 76 and the second guide plate 74 are spaced apart and opposite each other along the first direction to form a fourth gap 712.

[0150] Among them, the first gap 721 and the second gap 722 form an avoidance gap 72, and the third gap 711 and the fourth gap 712 form a guide gap 71.

[0151] As can be seen, when the guide assembly 7 includes the first guide plate 73, the second guide plate 74, the third guide plate 75 and the fourth guide plate 76, the above-mentioned avoidance gap 72 and guide gap 71 can be formed by the cooperation of multiple guide plates in position. The implementation method is very simple and can reduce the cost of the guide assembly 7.

[0152] In some embodiments, see Figure 2 and Figure 7 , Figure 7 yes Figure 2 A schematic diagram of the structure of the second guide plate 74 is shown. At least one of the first guide plate 73, the second guide plate 74, the third guide plate 75 and the fourth guide plate 76 is provided with adsorption holes.

[0153] By providing an adsorption hole in at least one of the first guide plate 73, the second guide plate 74, the third guide plate 75 and the fourth guide plate 76, the dust generated during the cutting of the material strip L can be adsorbed in a timely manner, making the working environment of the cutting mechanism 100 cleaner and thus avoiding dust contamination of the cutting mechanism 100 or the material strip L.

[0154] Furthermore, in some embodiments, see Figure 2 and Figure 7 The second guide plate 74 is provided with a third adsorption hole 741, and the third guide plate 75 is provided with a fourth adsorption hole 751.

[0155] By setting a third adsorption hole 741 on the second guide plate 74 and a fourth adsorption hole 751 on the third guide plate 75, the dust generated during the cutting of the material strip L can be adsorbed in a timely manner, making the working environment of the cutting mechanism 100 cleaner and thus avoiding dust contamination of the cutting mechanism 100 or the material strip L.

[0156] In addition, since the second guide plate 74 and the third guide plate 75 are located on both sides of the material strip L along the first direction, that is, the second guide plate 74 and the third guide plate 75 are located on both sides of the thickness direction of the material strip L, the third adsorption hole 741 and the fourth adsorption hole 751 are located on both sides of the thickness direction of the material strip L, so that the dust on both sides of the thickness direction of the material strip L can be adsorbed cleanly.

[0157] In some embodiments, see Figure 3 The direction along the second guide plate 74 pointing towards the first guide plate 73 ( Figure 3 (in the negative direction of the X-axis), the distance between the second guide plate 74 and the fourth guide plate 76 gradually increases along the first direction.

[0158] In this way, the width of the fourth gap 712 between the second guide plate 74 and the fourth guide plate 76 gradually increases along the first direction to form a trumpet shape, which is conducive to the material strip L entering the fourth gap 712 between the second guide plate 74 and the fourth guide plate 76. This can prevent the material strip L from colliding with the end of the second guide plate 74 near the first guide plate 73, and also prevent the material strip L from colliding with the end of the fourth guide plate 76 near the third guide plate 75.

[0159] Figure 8 This is a schematic diagram of the structure of a battery cell winding machine 200 provided in one embodiment of this application. See also: Figure 8 The battery cell winding machine 200 includes a cutting mechanism 100.

[0160] The structure of the cutting mechanism 100 can be the same as that of any of the cutting mechanisms 100 described in the above embodiments, and can bring the same or similar beneficial effects. For details, please refer to the description of the cutting mechanism 100 in the above embodiments. This embodiment will not repeat the description here.

[0161] In this embodiment, on the one hand, since the cutting mechanism 100 can cut the material strip A during the conveying process, the conveying efficiency of the material strip A can be improved. On the other hand, the cut of the material strip A can be made relatively smooth and burr-free. Furthermore, the motion control is simple and the structure is more compact. Based on this, when the battery cell winding machine 200 includes the cutting mechanism 100, the battery cell winding machine 200 can process battery cells with higher efficiency and better quality, with less burr formation. In addition, it can also reduce the area occupied by the battery cell winding machine 200 and reduce the difficulty of motion control.

[0162] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cutting mechanism (100), characterized in that, include: Support (1); The first cutting component (2) includes a first cutter holder (21) and a first cutter (22), wherein the first cutter (22) is disposed on the first cutter holder (21); The second cutting assembly (3) includes a second cutter holder (31) and a second cutter (32), wherein the second cutter (32) is disposed on the second cutter holder (31); A first guide mechanism (6), wherein at least one of the first cutter holder (21) and the second cutter holder (31) is slidably disposed on the first guide mechanism (6) along a first direction, and the cutting edge of the first cutter (22) and the cutting edge of the second cutter (32) are opposite to each other along the first direction; and, The drive mechanism (4) includes a drive member (41), a first crank (42) and a second crank (43). The first crank (42) is rotatably disposed on the support (1). The first cutter seat (21) is rotatably connected to the first crank (42). The second crank (43) is rotatably disposed on the support (1). The second cutter seat (31) is rotatably connected to the second crank (43). The drive member (41) is connected to the first crank (42) and the second crank (43) respectively.

2. The cutting mechanism (100) according to claim 1, characterized in that, The drive member (41) is used to drive the first crank (42) and the second crank (43) to rotate relative to the support (1) respectively, so as to drive the first cutter seat (21) and the second cutter seat (31) to move along the second direction, and to drive the first cutter seat (21) and the second cutter seat (31) to move along the first direction so that the cutting edge of the first cutter (22) and the cutting edge of the second cutter (32) move closer or further away from each other along the first direction.

3. The cutting mechanism (100) according to claim 1, characterized in that, The cutting mechanism (100) further includes: The second guide mechanism (5) includes a first sliding member (51), which is slidably disposed on the support (1) along the second direction. The first guide mechanism (6) is disposed on the first sliding member (51), and the first cutter seat (21) and the second cutter seat (31) are both slidably disposed on the first guide mechanism (6) along the first direction.

4. The cutting mechanism (100) according to claim 3, characterized in that, The second guiding mechanism (5) also includes: The second sliding member (52) is slidably disposed on the support (1) along the second direction. The first ends of the first cutter seat (21) and the second cutter seat (31) are both disposed on the first sliding member (51), and the second ends of the first cutter seat (21) and the second cutter seat (31) opposite to the first ends are both disposed on the second sliding member (52).

5. The cutting mechanism (100) according to claim 4, characterized in that, The first guide mechanism (6) includes a first guide rod (61), which is disposed on the first sliding member (51) and extends along the first direction. The first cutter seat (21) and the second cutter seat (31) can be slidably sleeved on the first guide rod (61).

6. The cutting mechanism (100) according to claim 5, characterized in that, The first guiding mechanism (6) also includes a second guide rod (62). The second guide rod (62) is disposed on the second sliding member (52) and extends along the first direction. The first cutter seat (21) and the second cutter seat (31) can be slidably sleeved on the second guide rod (62).

7. The cutting mechanism (100) according to any one of claims 1-6, characterized in that: The first cutter holder (21) is rotatably connected to the first crank (42) around the first axis (O1). The plane passing through the first axis (O1) and parallel to the first direction is the first plane, and the first plane passes through the cutting edge of the first cutter (22). And / or, The second cutter holder (31) is rotatably connected to the second crank (43) about the second axis (O2). The plane passing through the second axis (O2) and parallel to the first direction is the second plane, which passes through the cutting edge of the second cutter (32).

8. The cutting mechanism (100) according to any one of claims 1-6, characterized in that, The drive mechanism (4) also includes: The transmission mechanism (44) includes a first gear (441) and a second gear (442). The first gear (441) is connected to the first crank (42), and the second gear (442) is connected to the second crank (43). The first gear (441) meshes with the second gear (442), and the driving member (41) is connected to the first gear (441) in a transmission connection.

9. The cutting mechanism (100) according to claim 8, characterized in that, The drive mechanism (4) also includes: A third crank (45), rotatably mounted on the support (1), a first end of the first cutter holder (21) rotatably connected to the first crank (42), a second end of the first cutter holder (21) rotatably connected to the third crank (45), the first end of the first cutter holder (21) being opposite to the second end of the first cutter holder (21); and, A fourth crank (46) is rotatably disposed on the support (1). The first end of the second cutter seat (31) is rotatably connected to the second crank (43), and the second end of the second cutter seat (31) is rotatably connected to the fourth crank (46). The first end of the second cutter seat (31) is opposite to the second end of the second cutter seat (31).

10. The cutting mechanism (100) according to claim 9, characterized in that, The transmission mechanism (44) further includes a third gear (443) and a fourth gear (444). The third gear (443) is connected to the third crank (45), and the fourth gear (444) is connected to the fourth crank (46). The third gear (443) meshes with the fourth gear (444).

11. The cutting mechanism (100) according to any one of claims 1-6, characterized in that, Along the third direction, the distance between the cutting edge of the first cutter (22) and the cutting edge of the second cutter (32) gradually increases along the first direction.

12. The cutting mechanism (100) according to any one of claims 1-6, characterized in that: The first cutter (22) is provided with a first adsorption hole (221); and / or the second cutter (32) is provided with a second adsorption hole (321).

13. The cutting mechanism (100) according to claim 3, characterized in that, The cutting mechanism (100) further includes: A guide component (7) is disposed on the first slider (51); The guide assembly (7) is formed with a guide slot (71) that extends through the guide assembly (7) along the second direction.

14. The cutting mechanism (100) according to claim 13, characterized in that, The guide assembly (7) also has a clearance slot (72) extending through the guide assembly (7) along the first direction. The clearance slot (72) is used to allow the cutting edge of the first cutter (22) and the cutting edge of the second cutter (32) to enter from both ends of the clearance slot (72) along the first direction.

15. The cutting mechanism (100) according to claim 13, characterized in that, The guiding component (7) includes: The first guide plate (73) and the second guide plate (74) are both disposed on the first sliding member (51), and the first guide plate (73) and the second guide plate (74) are spaced apart from each other along the second direction; The third guide plate (75) and the fourth guide plate (76) are both disposed on the first sliding member (51). The third guide plate (75) and the fourth guide plate (76) are spaced apart from each other along the second direction. The third guide plate (75) and the first guide plate (73) are spaced apart from each other along the first direction to form a third gap (711). The fourth guide plate (76) and the second guide plate (74) are spaced apart from each other along the first direction to form a fourth gap (712). The third gap (711) and the fourth gap (712) together form the guide gap (71).

16. The cutting mechanism (100) according to claim 15, characterized in that, At least one of the first guide plate (73), the second guide plate (74), the third guide plate (75), and the fourth guide plate (76) is provided with adsorption holes.

17. The cutting mechanism (100) according to claim 15, characterized in that, Along the direction from the second guide plate (74) to the first guide plate (73), the distance between the second guide plate (74) and the fourth guide plate (76) gradually increases along the first direction.

18. A battery cell winding machine (200), characterized in that, Includes the cutting mechanism (100) according to any one of claims 1-17.

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