Roll changing device and battery cell winding apparatus

Abstract

The application relates to the technical field of battery processing equipment, in particular to a roll changing device and a battery cell winding device. The roll changing device comprises a roll unwinding mechanism, the roll unwinding mechanism comprising a first roll unwinding shaft and a second roll unwinding shaft; and a tape connecting mechanism, the tape connecting mechanism comprising a first driving piece, a mounting piece, a tape connecting roller and a cutter assembly, the mounting piece being arranged on the first driving piece, the tape connecting roller being arranged on the mounting piece, the cutter assembly comprising a second driving piece and a cutter, the second driving piece being arranged on the mounting piece, and the cutter being connected to the second driving piece. The roll changing device provided by the application has a simple structure and can reduce the cost of the roll changing device.

Description

Technical Field

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

[0002] In the process of manufacturing battery cells using winding needles, battery cell winding equipment typically incorporates a roll-changing device to improve production efficiency and prevent downtime. This device holds a spare roll and a working roll. Once the working roll is unwound, the spare roll takes over, allowing for unwinding without interrupting equipment operation and maximizing battery cell manufacturing efficiency. However, the complex structure of these roll-changing devices in related technologies results in high costs. Utility Model Content

[0003] This application discloses a winding device and a cell winding equipment, which can simplify the structure of the winding device and reduce its cost.

[0004] To achieve the above objectives, in a first aspect, this application discloses a roll-changing device, comprising:

[0005] The unwinding mechanism includes a first unwinding shaft and a second unwinding shaft; and,

[0006] A tape-connecting mechanism includes a first driving member, a mounting member, a tape-connecting roller, and a cutter assembly. The mounting member is disposed on the first driving member, the tape-connecting roller is disposed on the mounting member, and the cutter assembly includes a second driving member and a cutter. The second driving member is disposed on the mounting member, and the cutter is connected to the second driving member.

[0007] Optionally, the first unwinding shaft is used to carry one of the working material roll and the spare material roll, and the second unwinding shaft is used to carry the other of the working material roll and the spare material roll. The first driving member is used to drive the mounting member to move and drive the tape receiving roller to move between the first unwinding shaft and the second unwinding shaft. When the tape receiving roller moves toward the spare material roll, it carries the material strip of the working material roll onto the spare material roll for bonding.

[0008] Optionally, the second drive member is used to drive the cutter to cut the strip between the adhesive joint and the work roll after the strip of the work roll is bonded to the spare roll.

[0009] Since the mounting component is located on the first drive component and the tape receiving roller is located on the mounting component, the first drive component can drive the mounting component to move and drive the tape receiving roller to move between the first unwinding shaft and the second unwinding shaft. Therefore, regardless of whether the spare roll is carried on the first unwinding shaft or the second unwinding shaft, by driving the mounting component to move and driving the tape receiving roller to move between the first unwinding shaft and the second unwinding shaft, the purpose of bonding the tape in the working roll and the tape in the spare roll together can be achieved through the adhesive component.

[0010] In layman's terms, the first driving component drives the mounting component to move, which in turn drives the tape-attaching roller to move between the first and second unwinding shafts. The same tape-attaching roller can attach the tape from the working roll to the spare roll on the second unwinding shaft or the spare roll on the first unwinding shaft. This eliminates the need for separate tape-attaching mechanisms for the first and second unwinding shafts, thereby saving the number of tape-attaching mechanisms, simplifying the structure of the roll changing device, and reducing the cost of the roll changing device.

[0011] In addition, since the second drive component is located on the mounting component and the cutter is connected to the second drive component, when the first drive component drives the mounting component to move between the first unwinding shaft and the second unwinding shaft, it can drive the cutter and the second drive component to move synchronously with the mounting component between the first unwinding shaft and the second unwinding shaft. In this way, under the driving action of the mounting component, the cutter can be made closer to the bonding point between the working material roll and the spare material roll, so that the second drive component can easily drive the cutter to cut the material roll between the bonding point and the working material roll after the working material roll is bonded to the spare material roll.

[0012] Furthermore, since the second drive unit can drive the cutter to cut the strip between the adhesive joint and the work roll after the strip of the work roll is bonded to the spare roll, the possibility of the strip of the work roll swaying can be avoided or reduced to a certain extent.

[0013] Optionally, the first driving member is a rotary driving member, and the mounting member is disposed on the rotation axis of the first driving member.

[0014] Optional:

[0015] The first unwinding shaft is parallel to the second unwinding shaft;

[0016] And / or,

[0017] The first unwinding shaft is parallel to the rotation axis;

[0018] And / or,

[0019] The first unwinding shaft is parallel to the receiving roller.

[0020] By making the first unwinding shaft, second unwinding shaft, rotating shaft, and receiving roller parallel to each other, on the one hand, the layout of the first unwinding shaft, second unwinding shaft, rotating shaft, and receiving roller is more regular, facilitating assembly. On the other hand, when the receiving roller drives the strip in the working roll to the bonding component of the spare roll, the contact between the receiving roller and the bonding component is tighter, preventing localized loose connections. This ensures that the strip in the working roll can be more reliably bonded to the strip in the spare roll through the bonding component.

[0021] Optionally, the rotating shaft is located between the first unwinding shaft and the second unwinding shaft, the distance between the first unwinding shaft and the rotating shaft is d1, and the distance between the second unwinding shaft and the rotating shaft (311) is d2, where d1 = d2.

[0022] By making d1 = d2, the rotating shaft can be located on the plane of symmetry between the first unwinding shaft and the second unwinding shaft. This makes the layout of the rotating shaft, the first unwinding shaft, and the second unwinding shaft more regular and easier to assemble. On the other hand, when the receiving roller swings, it can reach the same position on the spare rolls on the first unwinding shaft and the second unwinding shaft, respectively. Thus, the strip in the working roll can be bonded to the strip of the spare roll at the same position, making the structure simpler and the motion control simpler.

[0023] Optionally, the tape receiving roller includes a first tape receiving roller and a second tape receiving roller, at least one of the first tape receiving roller and the second tape receiving roller is rotatably disposed on the mounting member, and the first tape receiving roller and the second tape receiving roller are arranged radially spaced apart along the first tape receiving roller.

[0024] Since at least one of the first and second tape-connecting rollers is rotatably mounted on the mounting component, on the one hand, when the first or second tape-connecting roller abuts against the tape of the working material roll, the first or second tape-connecting roller can rotate relative to the tape, thereby reducing the friction between the first and second tape-connecting rollers and the tape, and between the second and second tape-connecting rollers and the tape to a certain extent.

[0025] On the other hand, when the first or second tape-connecting roller rotates, it can also press the cut tape onto the bonding component, so that the tape can be more firmly bonded to the spare roll.

[0026] Optionally, the cutter is disposed between the first receiving roller and the second receiving roller.

[0027] Since the cutter is positioned between the first and second receiving rollers, the second drive unit can drive the cutter's blade to move in and out of the gap between the first and second receiving rollers. Based on this, after the first receiving roller abuts against the strip of the working roll and moves the strip to the adhesive of the spare roll, so that the strip in the working roll and the strip in the spare roll are bonded together by the adhesive, the second drive unit can drive the cutter's blade to move in and out of the gap between the first and second receiving rollers, so that the strip in the working roll is cut off. This ensures that the strip in the spare roll can take over from the strip in the working roll and continue to unwind, while also preventing the remaining strip in the working roll from being abnormally unwound.

[0028] In addition, since the second driving member can drive the blade of the cutter to enter and exit the gap between the first and second receiving rollers, the blade of the cutter can cut the material strip between the first and second receiving rollers. The first and second receiving rollers can tighten the material strip on both sides of the blade, thereby better ensuring that the blade of the cutter cuts the material strip.

[0029] Optionally, the strapping mechanism further includes:

[0030] A first translation component, wherein the first driving member is disposed on the first translation component, the first translation component is used to drive the first driving member to move along an axial direction parallel to the receiving roller.

[0031] Since the first driving member is disposed on the first translation assembly, when it is necessary for the mounting member to drive the receiving roller to rotate from one side of the material strip along the thickness direction to the other side, firstly, the first translation assembly can drive the first driving member to move along the axial direction parallel to the receiving roller, so that the receiving roller avoids the material strip along the axial direction of the receiving roller. Then, the mounting member can drive the receiving roller to swing past the material strip. After the mounting member drives the receiving roller to swing past the material strip, the first translation assembly can drive the first driving member to move along the axial direction parallel to the receiving roller, thereby achieving the purpose of rotating the receiving roller from one side of the material strip along the thickness direction to the other side.

[0032] It can be seen that when the tape receiving mechanism also includes a first translation component, the first driving component is driven by the first translation component to move along the axial direction parallel to the tape receiving roller. This can avoid the tape from being moved from one side of the tape to the other side by the mounting component, thereby avoiding interference between the tape receiving roller and the tape.

[0033] Optionally, the roll changing device further includes:

[0034] An adhesive applicator, comprising a first motion component and an adhesive applicator, wherein the adhesive applicator is disposed on the first motion component.

[0035] Optionally, the first motion component is used to drive the adhesive application component to move between the first unwinding shaft and the second unwinding shaft, and the adhesive application component is used to apply the adhesive to the spare roll.

[0036] Since the adhesive application assembly is located on the first motion assembly, and the first motion assembly can drive the adhesive application assembly to move between the first unwinding shaft and the second unwinding shaft, the purpose of applying the adhesive to the spare material roll can be achieved regardless of whether the spare material roll is carried on the first unwinding shaft or the second unwinding shaft, by driving the adhesive application assembly to move between the first unwinding shaft and the second unwinding shaft through the first motion assembly.

[0037] In layman's terms, the first motion component drives the adhesive application component to move between the first unwinding shaft and the second unwinding shaft. The same adhesive application component can be used to apply the adhesive to the spare roll on the first unwinding shaft or the spare roll on the second unwinding shaft. This eliminates the need to set up separate adhesive application components for the first and second unwinding shafts, thereby saving the number of adhesive application components, simplifying the structure of the adhesive application mechanism, and reducing the cost of the adhesive application mechanism.

[0038] Optionally, the adhesive application assembly includes:

[0039] A second motion component is disposed on the first motion component;

[0040] An adhesive applicator roller is disposed on the second motion assembly, which drives the adhesive applicator roller to move in a direction parallel to the axial direction of the first unwinding shaft.

[0041] When the second motion component drives the adhesive roller to move in a direction parallel to the axial direction of the first unwinding shaft, the adhesive roller can adhere the adhesive to the spare roll when it is in contact with the spare roll, thus preparing for bonding the strip in the working roll to the strip in the spare roll using the adhesive.

[0042] Optionally, the adhesive application assembly further includes:

[0043] A third motion component is disposed on the second motion component, and the adhesive roller is disposed on the third motion component. The third motion component is used to drive the adhesive roller to move in a direction parallel to the radial direction of the first unwinding shaft.

[0044] Since the third motion component can drive the adhesive roller to move in a direction parallel to the radial direction of the first unwinding shaft, when the third motion component drives the adhesive roller to move in a direction parallel to the radial direction of the first unwinding shaft, the distance between the adhesive roller and the spare roll can be adjusted in a direction parallel to the radial direction of the first unwinding shaft. This ensures that the contact between the adhesive roller and the spare roll is relatively tight and there will be no loose connection. As a result, the adhesive can be more firmly bonded to the spare roll.

[0045] Secondly, this application discloses a battery cell winding device, including the winding device described in any of the first aspects above.

[0046] Since there is no need to set up separate adhesive application components for the first unwinding shaft and the second unwinding shaft, nor is it necessary to set up separate tape receiving mechanisms for the first unwinding shaft and the second unwinding shaft, the structure of the winding device can be simplified and the cost of the winding device can be reduced. Based on this, when the battery cell winding equipment includes a winding device, the structure of the battery cell winding equipment can be simplified and the cost can be reduced.

[0047] Compared with the prior art, the beneficial effects of this application are as follows:

[0048] In this application, since the mounting component is disposed on the first driving component and the tape receiving roller is disposed on the mounting component, the first driving component can drive the mounting component to move and drive the tape receiving roller to move between the first unwinding shaft and the second unwinding shaft. Therefore, regardless of whether the spare roll is carried on the first unwinding shaft or the second unwinding shaft, by driving the mounting component to move and driving the tape receiving roller to move between the first unwinding shaft and the second unwinding shaft, the purpose of bonding the tape in the working roll and the tape in the spare roll together by the adhesive component can be achieved.

[0049] In layman's terms, the first driving component drives the mounting component to move, which in turn drives the tape-attaching roller to move between the first and second unwinding shafts. The same tape-attaching roller can attach the tape from the working roll to the spare roll on the second unwinding shaft or the spare roll on the first unwinding shaft. This eliminates the need for separate tape-attaching mechanisms for the first and second unwinding shafts, thereby saving the number of tape-attaching mechanisms, simplifying the structure of the roll changing device, and reducing the cost of the roll changing device.

[0050] In addition, since the second drive component is located on the mounting component and the cutter is connected to the second drive component, when the first drive component drives the mounting component to move between the first unwinding shaft and the second unwinding shaft, it can drive the cutter and the second drive component to move synchronously with the mounting component between the first unwinding shaft and the second unwinding shaft. In this way, under the driving action of the mounting component, the cutter can always be close to the bonding point between the working material roll and the spare material roll. This allows the second drive component to easily drive the cutter to cut the material roll between the bonding point and the working material roll after the working material roll is bonded to the spare material roll.

[0051] Furthermore, since the second drive unit can drive the cutter to cut the strip between the adhesive joint and the work roll after the strip of the work roll is bonded to the spare roll, the possibility of the strip of the work roll swaying can be avoided or reduced to a certain extent. Attached Figure Description

[0052] 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.

[0053] Figure 1 This is a schematic diagram of the structure of a roll changing device provided in one embodiment of this application;

[0054] Figure 2 yes Figure 1 Schematic diagram of the intermediate belt connection mechanism;

[0055] Figure 3 yes Figure 1 A schematic diagram of the rewinding process of a rewinding device;

[0056] Figure 4 yes Figure 1 A schematic diagram of another winding process of the winding device;

[0057] Figure 5 yes Figure 2 A schematic diagram of the conveyor belt mechanism from another perspective;

[0058] Figure 6 yes Figure 1 A schematic diagram of another winding process of the winding device;

[0059] Figure 7 yes Figure 1 A schematic diagram of a middle adhesive applicator mechanism;

[0060] Figure 8This is a schematic diagram of the structure of a battery cell winding device provided in one embodiment of this application.

[0061] Explanation of reference numerals in the attached figures:

[0062] 1-Unwinding mechanism; 11-First unwinding shaft; 12-Second unwinding shaft;

[0063] 2- Adhesive application mechanism; 21- First motion component; 22- Adhesive application component; 221- Second motion component; 222- Adhesive application roller; 223- Third motion component;

[0064] 3-Tape receiving mechanism; 31-First driving component; 311-Rotating shaft; 32-Mounting component; 33-Tape receiving roller; 331-First tape receiving roller; 332-Second tape receiving roller; 34-Cutter assembly; 341-Second driving component; 342-Cutter; 35-First translation assembly;

[0065] 100 - Rewinding device; 200 - Cell winding equipment;

[0066] A1 - Working material roll; A2 - Spare material roll; B - Adhesive component. Detailed Implementation

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] Before explaining the technical solution of this application, the background technology of this application shall be explained first.

[0073] In the process of manufacturing battery cells using winding needles, battery cell winding equipment typically incorporates a roll-changing device to improve production efficiency and prevent equipment downtime. This device houses both spare and working rolls. Once the working roll is unwound, the spare roll takes over, allowing for unwinding without interrupting equipment operation and maximizing battery cell manufacturing efficiency. However, the complex structure of existing roll-changing devices in related technologies leads to high costs. Therefore, this application provides a novel roll-changing device to address these issues.

[0074] The technical solution of this application will be described below with reference to specific embodiments and accompanying drawings.

[0075] Figure 1 This is a schematic diagram of the structure of a roll changing device 100 provided in one embodiment of this application. Figure 2 yes Figure 1 A schematic diagram of the intermediate belt connection mechanism 3. Figure 3 yes Figure 1 A schematic diagram of the rewinding process of the rewinding device 100.

[0076] See Figure 1 and Figure 2The roll changing device 100 includes an unwinding mechanism 1, an adhesive application mechanism 2, and a tape receiving mechanism 3. The unwinding mechanism 1 includes a first unwinding shaft 11 and a second unwinding shaft 12. The first unwinding shaft 11 carries the working roll A1, and the second unwinding shaft 12 carries the spare roll A2. The adhesive application mechanism 2 includes a first motion component 21 and an adhesive application component 22. The adhesive application component 22 is disposed on the first motion component 21, and the first motion component 21 drives the adhesive application component 22 to move between the first unwinding shaft 11 and the second unwinding shaft 12. Figure 1 (In the X-axis direction), the adhesive assembly 22 is used to attach the adhesive component B to the spare material roll A2.

[0077] The tape receiving mechanism 3 is disposed between the first unwinding shaft 11 and the second unwinding shaft 12. The tape receiving mechanism 3 includes a first driving member 31, a mounting member 32 and a tape receiving roller 33. The mounting member 32 is disposed on the first driving member 31 and the tape receiving roller 33 is disposed on the mounting member 32. The first driving member 31 is used to drive the mounting member 32 to move and drive the tape receiving roller 33 to move between the first unwinding shaft 11 and the second unwinding shaft 12. When the tape receiving roller 33 moves toward the second unwinding shaft 12 (the spare roll A2), it drives the tape L of the working roll A1 to the adhesive member B of the spare roll A2.

[0078] Figure 5 yes Figure 2 A schematic diagram of the connecting mechanism 3 from another perspective. Figure 6 yes Figure 1 See the structural schematic diagram of another winding process of the winding changer 100. Figure 2 , Figure 5 and Figure 6 The tape-connecting mechanism 3 also includes a cutter assembly 34, which includes a second drive member 341 and a cutter 342. The second drive member 341 is disposed on the mounting member 32, and the cutter 342 is connected to the second drive member 341. The second drive member 341 is used to drive the cutter 342 to cut the tape L between the bonding point and the working tape A1 after the tape L of the working material roll A1 is bonded to the spare material roll A2.

[0079] In this embodiment, when the first unwinding shaft 11 carries the working material roll A1 and the second unwinding shaft 12 carries the spare material roll A2, the material strip L in the working material roll A1 can be unwound by the first unwinding shaft 11. When the material strip L in the working material roll A1 is almost unwound, in order to continuously unwind the material strip L, the first motion component 21 can drive the adhesive application component 22 to move toward the second unwinding shaft 12. The adhesive application component 22 can apply the adhesive piece B to the spare material roll A2.

[0080] Next, see Figure 3 Since the mounting component 32 is disposed on the first drive component 31 and the receiving roller 33 is disposed on the mounting component 32, the receiving roller 33 is located on the side of the material belt L away from the second unwinding shaft 12. Figure 3 In the case of the right side of the medium material strip L, when the first driving member 31 drives the mounting member 32 to move and drives the receiving roller 33 to move towards the second unwinding shaft 12, the receiving roller 33 can abut against the material strip L and drive the material strip L to move to the adhesive member B of the spare material roll A2, so that the material strip L in the working material roll A1 and the material strip L in the spare material roll A2 are bonded together by the adhesive member B. In this way, the material strip L in the spare material roll A2 can take over the material strip L in the working material roll A1 to continue unwinding, thereby achieving the purpose of continuously unwinding the material strip L.

[0081] Similarly, see Figure 4 , Figure 4 yes Figure 1 A schematic diagram of another rewinding process of the rewinding device 100. With the first unwinding shaft 11 carrying the spare roll A2 and the second unwinding shaft 12 carrying the working roll A1, firstly, the material strip L in the working roll A1 can be unwound through the second unwinding shaft 12. When the material strip L in the working roll A1 is almost unwound, in order to continuously unwind the material strip L, the first motion component 21 can drive the adhesive application component 22 to move toward the first unwinding shaft 11. The adhesive application component 22 can apply the adhesive piece B to the spare roll A2.

[0082] Next, see Figure 4 The receiving roller 33 is located on the side of the material strip L opposite to the first unwinding shaft 11. Figure 4 When the left side of the middle material belt L is in the case, the first driving member 31 drives the mounting member 32 to move, driving the receiving roller 33 to move towards the first unwinding shaft 11. Figure 4 When the intermediate roller 33 swings counterclockwise along the dotted line in the figure, the roller 33 can abut against the material strip L and drive the material strip L to move to the adhesive part B of the spare material roll A2, so that the material strip L in the working material roll A1 and the material strip L in the spare material roll A2 are bonded together by the adhesive part B. In this way, the material strip L in the spare material roll A2 can take over the material strip L in the working material roll A1 to continue unwinding, thereby achieving the purpose of continuously unwinding the material strip L.

[0083] As can be seen, since the adhesive application component 22 is located on the first motion component 21, the first motion component 21 can drive the adhesive application component 22 to move between the first unwinding shaft 11 and the second unwinding shaft 12. Since the mounting component 32 is located on the first driving component 31 and the tape receiving roller 33 is located on the mounting component 32, the first driving component 31 can drive the mounting component 32 to move and drive the tape receiving roller 33 to move between the first unwinding shaft 11 and the second unwinding shaft 12. Therefore, regardless of whether the spare roll A2 is carried on the first unwinding shaft 11 or the second unwinding shaft 12, the adhesive application component 22 can be driven by the first motion component 21 to move between the first unwinding shaft 11 and the second unwinding shaft 12, so as to achieve the purpose of applying the adhesive component B to the spare roll A2. By driving the mounting component 32 to move and driving the tape receiving roller 33 to move between the first unwinding shaft 11 and the second unwinding shaft 12, the tape L in the working roll A1 and the tape L in the spare roll A2 can be bonded together by the adhesive component B.

[0084] In layman's terms, the first motion component 21 drives the adhesive application component 22 to move between the first unwinding shaft 11 and the second unwinding shaft 12. The same adhesive application component 22 can be used to apply the adhesive B to the spare material roll A2 on the first unwinding shaft 11 or the spare material roll A2 on the second unwinding shaft 12. There is no need to set up separate adhesive application components 22 for the first unwinding shaft 11 and the second unwinding shaft 12. This can save the number of adhesive application components 22, simplify the structure of the adhesive application mechanism 2, and reduce the cost of the adhesive application mechanism 2.

[0085] Similarly, the first driving member 31 drives the mounting member 32 to move, which in turn drives the tape receiving roller 33 to move between the first unwinding shaft 11 and the second unwinding shaft 12. The same tape receiving roller 33 can be used to attach the tape L in the working material roll A1 to the spare material roll A2 on the second unwinding shaft 12, or to the spare material roll A2 on the first unwinding shaft 11. This eliminates the need to set separate tape receiving mechanisms 3 for the first unwinding shaft 11 and the second unwinding shaft 12, thereby saving the number of tape receiving mechanisms 3, simplifying the structure of the roll changing device 100, and reducing the cost of the roll changing device 100.

[0086] Furthermore, since the second driving member 341 is disposed on the mounting member 32 and the cutter 342 is connected to the second driving member 341, when the first driving member 31 drives the mounting member 32 to move between the first unwinding shaft 11 and the second unwinding shaft 12, it can drive the cutter 342 and the second driving member 341 to move synchronously with the mounting member 32 between the first unwinding shaft 11 and the second unwinding shaft 12. In this way, under the driving action of the mounting member 32, the cutter 342 can always be close to the bonding point between the material strip L of the working material roll A1 and the spare material roll A2. This allows the second driving member 341 to easily drive the cutter 342 to cut the material strip L between the bonding point and the working material roll A1 after the material strip L of the working material roll A1 is bonded to the spare material roll A2.

[0087] Furthermore, since the second drive unit 341 can drive the cutter 342 to cut the strip L between the bonding point and the working material roll A1 after the strip L of the working material roll A1 is bonded to the spare material roll A2, the possibility of the strip L of the working material roll A1 swinging off can be avoided or reduced to a certain extent.

[0088] It should be noted that the first motion component 21 mentioned above can be a cylinder, an electric cylinder, or a lead screw and nut mechanism, etc., and this embodiment is not limited to this. The adhesive component B mentioned above can be double-sided tape or glue, etc., and this embodiment is not limited to this. The first driving component 31 mentioned above can be a motor or any other structure capable of driving the mounting component 32 to swing, and this embodiment is not limited to this.

[0089] It should also be noted that the second driving component 341 mentioned above can be a cylinder or an electric cylinder, etc., and this embodiment does not limit it.

[0090] In some embodiments, see Figure 1 and Figure 2 The first driving component 31 is a rotary driving component, and the mounting component 32 is disposed on the rotation shaft 311 of the first driving component 31.

[0091] When the mounting component 32 is set on the rotating shaft 311 of the first drive component 31, the rotating shaft 311 can drive the mounting component 32 to swing when it rotates, and then drive the tape receiving roller 33 to swing between the first unwinding shaft 11 and the second unwinding shaft 12. This can achieve the purpose of driving the tape receiving roller 33 to abut against the material strip L and drive the material strip L to move to the adhesive component B of the spare material roll A2. Thus, the purpose of bonding the material strip L in the working material roll A1 with the material strip L in the spare material roll A2 through the adhesive component B can be achieved.

[0092] That is, when the mounting component 32 is set on the rotating shaft 311 of the first driving component 31, the purpose of driving the tape receiving roller 33 to move between the first unwinding shaft 11 and the second unwinding shaft 12 can be achieved by swinging. The structure is very simple and can reduce the cost of the tape receiving mechanism 3.

[0093] In some embodiments, see Figure 1 and Figure 2 The first unwinding shaft 11, the second unwinding shaft 12, the rotating shaft 311, and the receiving roller 33 are parallel to each other.

[0094] By making the first unwinding shaft 11, the second unwinding shaft 12, the rotating shaft 311, and the receiving roller 33 parallel to each other, on the one hand, the layout of the first unwinding shaft 11, the second unwinding shaft 12, the rotating shaft 311, and the receiving roller 33 can be made more regular, which is convenient for assembly. On the other hand, when the receiving roller 33 drives the strip L in the working roll A1 to the adhesive component B of the spare roll A2, the contact between the receiving roller 33 and the adhesive component B is tighter, and there will be no partial loose connection. This ensures that the strip L in the working roll A1 can be more reliably bonded to the strip L in the spare roll A2 through the function of the adhesive component B.

[0095] In some embodiments, see Figure 1 The rotating shaft 311 is located between the first unwinding shaft 11 and the second unwinding shaft 12. Specifically, the rotating shaft 311 is located radially along the first unwinding shaft 11. Figure 1 The unwinding axis (in the X-axis direction) is located between the first unwinding axis 11 and the second unwinding axis 12. The distance between the first unwinding axis 11 and the rotation axis 311 is d1, and the distance between the second unwinding axis 12 and the rotation axis 311 is d2, where d1 = d2.

[0096] By making d1 = d2, the rotating shaft 311 can be located on the symmetrical plane of the first unwinding shaft 11 and the second unwinding shaft 12. In this way, on the one hand, the layout of the rotating shaft 311, the first unwinding shaft 11 and the second unwinding shaft 12 can be more regular and easier to assemble. On the other hand, when the receiving roller 33 swings, the receiving roller 33 can reach the same position on the spare roll A2 on the first unwinding shaft 11 and the spare roll A2 on the second unwinding shaft 12 respectively. Then, the strip L in the working roll A1 can be bonded to the strip L of the spare roll A2 at the same position. The structure is simpler and the motion control is also simpler.

[0097] Further, see Figure 1 In some embodiments, the first unwinding shaft 11, the second unwinding shaft 12, and the rotating shaft 311 are coplanar.

[0098] By making the first unwinding shaft 11, the second unwinding shaft 12, and the rotating shaft 311 coplanar, the winding device 100 can be made more compact in the direction perpendicular to the coplanar direction, thereby reducing the overall volume of the winding device 100 to a certain extent.

[0099] In some embodiments, see Figure 2The tape receiving roller 33 includes a first tape receiving roller 331 and a second tape receiving roller 332. The first tape receiving roller 331 and the second tape receiving roller 332 are both disposed on the mounting member 32 and are radially spaced along the first tape receiving roller 331.

[0100] When the receiving roller 33 includes a first receiving roller 331 and a second receiving roller 332, and both the first receiving roller 331 and the second receiving roller 332 are disposed on the mounting member 32 and are radially spaced relative to each other along the first receiving roller 331, the mounting member 32 can drive the material strip L of the working material roll A1 to the adhesive part B of the spare material roll A2 through the first receiving roller 331 or the second receiving roller 332, regardless of whether the mounting member 32 drives the first receiving roller 331 and the second receiving roller 332 to rotate clockwise or counterclockwise, which is more flexible.

[0101] In some embodiments, see Figure 2 At least one of the first receiving roller 331 and the second receiving roller 332 is rotatably disposed on the mounting member 32.

[0102] Since at least one of the first receiving roller 331 and the second receiving roller 332 is rotatably disposed on the mounting member 32, on the one hand, when the first receiving roller 331 or the second receiving roller 332 abuts against the material strip L of the working material roll A1, the first receiving roller 331 or the second receiving roller 332 can rotate relative to the material strip L, thereby reducing the friction between the first receiving roller 331 and the material strip L, and between the second receiving roller 332 and the material strip L to a certain extent.

[0103] On the other hand, when the first receiving roller 331 or the second receiving roller 332 rotates, the cut strip L can be pressed onto the adhesive component B, so that the strip L can be more firmly bonded to the spare roll A2.

[0104] In some embodiments, see Figure 2 The first receiving roller 331 and the second receiving roller 332 are arranged at a radial distance from the first receiving roller 331. The cutter 342 is arranged between the first receiving roller 331 and the second receiving roller 332. The second driving member 341 is used to drive the blade of the cutter 342 to enter and exit the gap between the first receiving roller 331 and the second receiving roller 332.

[0105] Since the second driving member 341 can drive the blade of the cutter 342 to enter and exit the gap between the first receiving roller 331 and the second receiving roller 332, after the first receiving roller 331 abuts against the strip L of the working roll A1 and drives the strip L to move to the adhesive member B of the spare roll A2, so that the strip L in the working roll A1 and the strip L in the spare roll A2 are bonded together by the adhesive member B, the second driving member 341 can drive the blade of the cutter 342 to enter and exit the gap between the first receiving roller 331 and the second receiving roller 332, so that the strip L in the working roll A1 is cut off. This ensures that the strip L in the spare roll A2 can take over the strip L in the working roll A1 and continue to unwind. At the same time, it can also prevent the remaining strip L in the working roll A1 from being abnormally unwinded.

[0106] In addition, since the second driving member 341 can drive the blade of the cutter 342 to enter and exit the gap between the first receiving roller 331 and the second receiving roller 332, the blade of the cutter 342 can cut the material strip L between the first receiving roller 331 and the second receiving roller 332. The first receiving roller 331 and the second receiving roller 332 can tighten the material strip L on both sides of the blade, thereby better ensuring that the blade of the cutter 342 cuts the material strip L.

[0107] It should be noted that the second driving component 341 mentioned above can be a cylinder or an electric cylinder, etc., and this embodiment does not limit it.

[0108] To prevent interference between the receiving roller 33 and the strip L during the process of the mounting component 32 driving the receiving roller 33 to rotate from one side of the strip L along the thickness direction to the other, thus preventing the receiving roller 33 from being unable to rotate from one side of the strip L along the thickness direction, in some embodiments, see... Figure 1 , Figure 2 and Figure 5 The tape receiving mechanism 3 also includes a first translation component 35, and a first driving member 31 is disposed on the first translation component 35. The first translation component 35 is used to drive the first driving member 31 along an axial direction parallel to the tape receiving roller 33. Figure 1 (Movement in the Y-axis direction).

[0109] Since the first driving member 31 is disposed on the first translation assembly 35, when it is necessary for the mounting member 32 to drive the receiving roller 33 to rotate from one side of the strip L along the thickness direction to the other side, firstly, the first translation assembly 35 can drive the first driving member 31 along an axial direction parallel to the receiving roller 33. Figure 1The receiving roller 33 moves along the axial direction of the Y-axis, causing it to avoid the material strip L. Then, the mounting component 32 can drive the receiving roller 33 to swing across the material strip L. After the mounting component 32 drives the receiving roller 33 to swing across the material strip L, the first translation component 35 can drive the first driving component 31 along the axial direction parallel to the receiving roller 33. Figure 1 The Y-axis direction of the material can be moved to achieve the purpose of rotating the receiving roller 33 from one side of the material strip L to the other side along the thickness direction.

[0110] It can be seen that when the tape receiving mechanism 3 also includes the first translation component 35, the first driving component 31 is driven by the first translation component 35 to move along the axial direction parallel to the tape receiving roller 33. This can avoid the material belt L when the mounting component 32 drives the tape receiving roller 33 to swing from one side of the material belt L to the other side, thereby avoiding interference between the tape receiving roller 33 and the material belt L.

[0111] The first translation component 35 mentioned above can be a cylinder, an electric cylinder, or a lead screw and nut mechanism, etc., and this embodiment does not limit it.

[0112] In some embodiments, see Figure 1 and Figure 7 , Figure 7 yes Figure 1 A schematic diagram of a middle adhesive applicator 2 is shown. The adhesive applicator assembly 22 includes a second motion assembly 221 and an adhesive applicator roller 222. The second motion assembly 221 is disposed on the first motion assembly 21, and the adhesive applicator roller 222 is disposed on the second motion assembly 221. The second motion assembly 221 is used to drive the adhesive applicator roller 222 in a direction parallel to the axial direction of the first unwinding shaft 11. Figure 1 (Movement in the Y-axis direction).

[0113] When the second motion component 221 drives the adhesive roller 222 in a direction parallel to the axial direction of the first unwinding shaft 11 ( Figure 1 When moving in the Y-axis direction, with the adhesive roller 222 abutting against the spare material roll A2, the adhesive roller 222 can stick the adhesive component B to the spare material roll A2, thus preparing for bonding the material strip L in the working material roll A1 with the material strip L in the spare material roll A2 through the adhesive component B.

[0114] The second motion component 221 mentioned above can be a cylinder, an electric cylinder, or a lead screw and nut structure, etc., and this embodiment does not limit it.

[0115] In some embodiments, see Figure 1 and Figure 7 The axial direction of the adhesive roller 222 is perpendicular to the axial direction of the first unwinding shaft 11.

[0116] By making the axial direction of the adhesive roller 222 perpendicular to the axial direction of the first unwinding shaft 11, the adhesive roller 222 can rotate more smoothly relative to the spare roll A2.

[0117] In some embodiments, see Figure 1 and Figure 7 The adhesive application assembly 22 also includes a third motion assembly 223, which is disposed on the second motion assembly 221. The adhesive application roller 222 is disposed on the third motion assembly 223. The third motion assembly 223 is used to drive the adhesive application roller 222 in a direction parallel to the radial direction of the first unwinding shaft 11. Figure 1 (Movement in the X-axis direction).

[0118] Because the third motion component 223 can drive the adhesive roller 222 in a direction parallel to the radial direction of the first unwinding shaft 11 ( Figure 1 The third motion component 223 drives the adhesive roller 222 to move in a direction parallel to the radial direction of the first unwinding shaft 11. Therefore, when the third motion component 223 drives the adhesive roller 222 to move in a direction parallel to the radial direction of the first unwinding shaft 11, the distance between the adhesive roller 222 and the spare material roll A2 can be adjusted in a direction parallel to the radial direction of the first unwinding shaft 11. This ensures that the contact between the adhesive roller 222 and the spare material roll A2 is relatively tight and there will be no loose connection. As a result, the adhesive component B can be more firmly attached to the spare material roll A2.

[0119] The aforementioned third motion component 223 can be a cylinder, an electric cylinder, or a lead screw and nut structure, etc., and this embodiment does not limit it.

[0120] Figure 8 This is a schematic diagram of the structure of a battery cell winding device 200 provided in one embodiment of this application. See also: Figure 8 The battery cell winding equipment 200 includes a winding device 100.

[0121] The structure of the roll changing device 100 can be the same as that of any of the roll changing devices 100 described in the above embodiments, and can bring the same or similar beneficial effects. For details, please refer to the description of the roll changing device 100 in the above embodiments. This embodiment will not repeat the description here.

[0122] In this embodiment, since it is not necessary to provide separate adhesive application components 22 for the first unwinding shaft 11 and the second unwinding shaft 12, nor is it necessary to provide separate tape receiving mechanisms 3 for the first unwinding shaft 11 and the second unwinding shaft 12, the structure of the changing device 100 can be simplified and the cost of the changing device 100 can be reduced. Based on this, when the battery cell winding equipment 200 includes the changing device 100, the structure of the battery cell winding equipment 200 can be made simple and the cost can be lower.

[0123] 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 roll changing device (100), characterized in that, include: An unwinding mechanism (1) comprising a first unwinding shaft (11) and a second unwinding shaft (12); and, The tape receiving mechanism (3) includes a first driving member (31), a mounting member (32), a tape receiving roller (33), and a cutter assembly (34). The mounting member (32) is disposed on the first driving member (31), and the tape receiving roller (33) is disposed on the mounting member (32). The cutter assembly (34) includes a second driving member (341) and a cutter (342). The second driving member (341) is disposed on the mounting member (32), and the cutter (342) is connected to the second driving member (341).

2. The roll changing device (100) according to claim 1, characterized in that, The first unwinding shaft (11) is used to carry one of the working roll (A1) and the spare roll (A2), and the second unwinding shaft (12) is used to carry the other of the working roll (A1) and the spare roll (A2). The first driving member (31) is used to drive the mounting member (32) to move and drive the tape receiving roller (33) to move between the first unwinding shaft (11) and the second unwinding shaft (12). When the tape receiving roller (33) moves toward the spare roll (A2), it carries the material strip (L) of the working roll (A1) onto the spare roll (A2) for bonding.

3. The roll changing device (100) according to claim 2, characterized in that, The second drive member (341) is used to drive the cutter (342) to cut the strip (L) between the adhesive joint and the work roll (A1) after the strip (L) of the work roll (A1) is bonded to the spare roll (A2).

4. The rewinding device (100) according to claim 1, characterized in that, The first driving member (31) is a rotary driving member, and the mounting member (32) is disposed on the rotation axis (311) of the first driving member (31).

5. The rewinding device (100) according to claim 4, characterized in that: The first unwinding shaft (11) is parallel to the second unwinding shaft (12); And / or, The first unwinding shaft (11) is parallel to the rotating shaft (311); And / or, The first unwinding shaft (11) is parallel to the receiving roller (33).

6. The roll changing device (100) according to claim 5, characterized in that, The rotating shaft (311) is located between the first unwinding shaft (11) and the second unwinding shaft (12). The distance between the first unwinding shaft (11) and the rotating shaft (311) is d1, and the distance between the second unwinding shaft (12) and the rotating shaft (311) is d2, where d1 = d2.

7. The roll changing device (100) according to claim 1, characterized in that, The tape receiving roller (33) includes a first tape receiving roller (331) and a second tape receiving roller (332). At least one of the first tape receiving roller (331) and the second tape receiving roller (332) is rotatably disposed on the mounting member (32), and the first tape receiving roller (331) and the second tape receiving roller (332) are arranged radially spaced along the first tape receiving roller (331).

8. The roll changing device (100) according to claim 7, characterized in that, The cutter (342) is disposed between the first receiving roller (331) and the second receiving roller (332).

9. The roll changing device (100) according to claim 1, characterized in that, The receiving mechanism (3) further includes: A first translation component (35) is provided on the first translation component (35), and the first driving member (31) is provided on the first translation component (35). The first translation component (35) is used to drive the first driving member (31) to move along an axial direction parallel to the receiving roller (33).

10. The rewinding device (100) according to any one of claims 1-9, characterized in that, The roll changing device (100) further includes: The adhesive applicator (2) includes a first motion component (21) and an adhesive applicator (22), wherein the adhesive applicator (22) is disposed on the first motion component (21).

11. The rewinding device (100) according to claim 10, characterized in that, The first motion component (21) is used to drive the adhesive application component (22) to move between the first unwinding shaft (11) and the second unwinding shaft (12), and the adhesive application component (22) is used to apply the adhesive (B) to the spare roll (A2).

12. The rewinding device (100) according to claim 10, characterized in that, The adhesive assembly (22) includes: The second motion component (221) is disposed on the first motion component (21); An adhesive roller (222) is disposed on the second motion assembly (221), and the second motion assembly (221) is used to drive the adhesive roller (222) to move in a direction parallel to the axial direction of the first unwinding shaft (11).

13. The rewinding device (100) according to claim 12, characterized in that, The adhesive assembly (22) also includes: The third motion component (223) is disposed on the second motion component (221), and the adhesive roller (222) is disposed on the third motion component (223). The third motion component (223) is used to drive the adhesive roller (222) to move in a direction parallel to the radial direction of the first unwinding shaft (11).

14. A battery cell winding device (200), characterized in that, Includes the rewinding device (100) according to any one of claims 1-13.

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