Roll changing device and battery cell winding equipment

Abstract

The utility model relates to the technical field of battery processing equipment, in particular to a roll changing device and battery cell winding equipment. A roll changing device comprises a mounting part; the unwinding mechanism comprises a plurality of unwinding shafts; and the winding mechanism comprises a first driving part, a first moving part and a winding shaft, the first driving part is arranged on the mounting part, the first moving part is connected to the first driving part, and the winding shaft is arranged on the first moving part. According to the reel changing device, it is not needed to arrange one winding shaft for each unwinding shaft correspondingly, and therefore the purposes that the number of the winding shafts is reduced, the structure of the reel changing device is simplified, and the manufacturing cost of the reel changing device is reduced can be achieved.

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] A winding device is used to continuously supply strip to the winding needles of a battery cell winding machine. Specifically, the unwinding device typically includes multiple unwinding shafts, each with a strip of strip on it. When the strip on one unwinding shaft is unwound, it needs to be taken over by a strip from another unwinding shaft to continue unwinding. Furthermore, due to process limitations, multiple take-up shafts are required for the multiple unwinding shafts, and each take-up shaft needs to take up a section of strip from the strip on its corresponding unwinding shaft. However, since each unwinding shaft requires a corresponding take-up shaft, the winding device becomes structurally complex and has a high manufacturing cost. 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 the manufacturing cost of the winding device.

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

[0005] Installation components;

[0006] An unwinding mechanism, comprising a plurality of unwinding shafts; and,

[0007] A winding mechanism, comprising a first driving member, a first moving member, and a winding shaft, wherein the first driving member is disposed on the mounting member, the first moving member is connected to the first driving member, and the winding shaft is disposed on the first moving member.

[0008] Since the first driving member is mounted on the mounting component, the first moving member is connected to the first driving member, and the take-up shaft is mounted on the first moving member, the first driving member can drive the take-up shaft to move to at least two different positions. This allows for the separate winding of a section of strip from the first unwinding shaft or the second unwinding shaft among multiple unwinding shafts. In simpler terms, by driving the take-up shaft with the first driving member, one take-up shaft can correspond to multiple unwinding shafts, thus enabling the separate winding of a section of strip from multiple unwinding shafts using the same take-up shaft. This eliminates the need for a separate take-up shaft for each unwinding shaft, thereby saving on the number of take-up shafts, simplifying the structure of the winding changer, and reducing the manufacturing cost of the winding changer.

[0009] Optionally, each of the unwinding shafts may be fitted with a material roll, and the first driving member is used to drive the take-up shaft to move to at least two different positions to respectively take up a section of the material roll on the first unwinding shaft or a section of the material roll on the second unwinding shaft among the plurality of unwinding shafts.

[0010] Optionally, the first movable member is slidably disposed on the mounting member.

[0011] By making the first moving part slidably disposed on the mounting part, it is possible to make the movement of the first moving part more stable and smooth when the first driving part drives the first moving part to move.

[0012] Optionally, the sliding direction of the first moving member is perpendicular to the axial direction of the take-up shaft.

[0013] By making the sliding direction of the first moving part perpendicular to the axis of the take-up shaft, on the one hand, the layout of the take-up shaft can be made more regular, which makes it easier to control and verify the installation accuracy when the take-up shaft is installed on the first moving part. On the other hand, it is easy for the first moving part to move the take-up shaft to the position corresponding to different unwinding shafts during the movement, so that the take-up shaft can better wind up the material strips on different unwinding shafts.

[0014] Optionally, the winding mechanism further includes:

[0015] A rotary drive assembly is disposed on the first movable member, and the take-up shaft is rotatably disposed on the first movable member about the axis of the take-up shaft, and the rotary drive assembly is connected to the take-up shaft.

[0016] Since the take-up shaft is rotatably mounted on the first moving member around its axis, and the rotary drive assembly is mounted on the first moving member, the rotary drive assembly can drive the take-up shaft to rotate around its axis. When the take-up shaft rotates around its axis, the purpose of winding the material strip can be achieved.

[0017] In other words, the purpose of winding the material strip can be achieved by driving the take-up shaft to rotate around the axis of the take-up shaft through the rotary drive component. The method and principle of winding the material strip are very simple, thus simplifying the structure of the entire roll changing device.

[0018] Optionally, the rotation drive assembly includes:

[0019] A rotary drive component, the rotary drive component being disposed on the first movable component; and,

[0020] A pulley structure is provided, wherein the pulley structure is connected to the take-up shaft and the rotary drive component respectively.

[0021] Since the rotary drive is located on the first moving part, and the pulley structure is connected to the take-up shaft and the rotary drive respectively, the rotary drive can drive the take-up shaft to rotate through the pulley structure, thereby achieving the purpose of taking up the material strip through the take-up shaft.

[0022] Because of its simple structure, the pulley system can reduce the cost of rotary drive components.

[0023] Optionally, a feed slit is formed on the take-up shaft, and an air bladder is provided on the take-up shaft, with the air bladder located inside the feed slit.

[0024] Because the take-up shaft has a feed slot and an air bladder, when the tape is inserted into the feed slot, the tape can be fixed in the feed slot by inflating the air bladder. Then, when the take-up shaft starts to rotate, the tape can be smoothly wound up on the take-up shaft, thereby achieving the purpose of winding the tape onto the take-up shaft.

[0025] Optionally, the winding mechanism further includes:

[0026] A translation drive assembly is disposed on the first moving member, and the take-up shaft is slidably disposed on the first moving member along the axial direction of the take-up shaft, and the translation drive assembly is connected to the take-up shaft.

[0027] Since the take-up shaft is slidably mounted on the first moving member along its axial direction, and the translation drive assembly is connected to the take-up shaft, the translation drive assembly can drive the take-up shaft to slide relative to the first moving member along its axial direction. When the translation drive assembly drives the take-up shaft to slide relative to the first moving member along its axial direction, on the one hand, the position of the take-up shaft can be adjusted along its axial direction, so that the take-up shaft can better correspond to the unwinding shaft, thereby better winding up the strip in the unwinding shaft. On the other hand, by adjusting the position of the take-up shaft along its axial direction, collisions between the take-up shaft and other surrounding components can be avoided during the position switching process driven by the first drive assembly, making the roll changing device safer to use.

[0028] Optionally, the winding mechanism further includes:

[0029] A support cylinder is slidably inserted into the first movable member along the axial direction of the take-up shaft. The translation drive assembly is connected to the support cylinder. A portion of the structure of the take-up shaft is rotatably disposed within the support cylinder about the axis of the take-up shaft.

[0030] Since part of the winding shaft is rotatably mounted inside the support cylinder around the axis of the winding shaft, and since the support cylinder is slidably inserted into the first moving member along the axial direction of the winding shaft, and the translation drive assembly is connected to the support cylinder, under the action of the support cylinder, in addition to being able to rotate relative to the first moving member around the axis of the winding shaft, the support cylinder can also drive the winding shaft to slide relative to the first moving member along the axial direction of the winding shaft. The support cylinder provides structural protection for the rotation and movement of the winding shaft relative to the first moving member.

[0031] Optionally, the winding mechanism further includes an unloading mechanism, the unloading mechanism comprising:

[0032] An unloading drive unit is disposed on the first moving member;

[0033] A blocking member is connected to the unloading drive member, which drives the blocking member to move radially toward or away from the take-up shaft.

[0034] Since the unloading drive is located on the first moving part and the blocking part is connected to the unloading drive, the unloading drive can drive the blocking part to move radially toward the winding shaft, so that the blocking part can move to one side of the waste roll along the axial direction of the winding shaft. Then, when the translation drive assembly drives the winding shaft to slide relative to the first moving part along the axial direction of the winding shaft, the blocking part can prevent the waste roll from sliding with the winding shaft, thereby allowing the waste roll to be smoothly disassembled from the winding shaft, making the disassembly of the waste roll more automated, thereby reducing the labor intensity of personnel.

[0035] Optionally, the blocking element is a clamp.

[0036] Because the clamp can better match the shape of the take-up shaft, and part of the clamp's structure can surround the circumference of the take-up shaft, the clamp can better prevent the waste roll from sliding along with the take-up shaft, thus ensuring that the waste roll can be better removed from the take-up shaft.

[0037] Optionally, the unloading mechanism further includes:

[0038] A discharge collar is slidably sleeved on the take-up shaft along the axial direction of the take-up shaft. The discharge drive is used to drive the blocking member to move towards or away from the discharge collar along the radial direction of the take-up shaft.

[0039] Since the unloading collar is slidably sleeved on the take-up shaft along the axial direction, when the unloading drive unit drives the blocking member to move radially towards the unloading collar along the take-up shaft, the blocking member can engage with the unloading collar or reach one side of the unloading collar along the axial direction of the take-up shaft. In this way, when the translation drive assembly drives the take-up shaft to slide relative to the first moving member along the axial direction of the take-up shaft, the blocking member can prevent the unloading collar from sliding with the take-up shaft. In this case, if a waste roll is provided on the side of the unloading collar opposite to the unloading collar along the axial direction of the take-up shaft, the unloading collar can also push the waste roll off the take-up shaft during the sliding process relative to the take-up shaft, thereby achieving the purpose of removing the waste roll from the take-up shaft.

[0040] Optionally, the unloading collar is provided with a concave ring that matches the blocking member, and the concave ring surrounds the axis of the winding shaft and is located on the peripheral wall of the unloading collar.

[0041] Because the unloading collar is provided with a concave ring that matches the blocking component, and the concave ring is located around the axis of the take-up shaft on the peripheral wall of the unloading collar, when the unloading drive unit drives the blocking component to move radially toward the unloading collar along the take-up shaft, the blocking component can be engaged in the unloading collar. This makes the engagement between the blocking component and the unloading collar more secure, thereby more stably driving the unloading collar to slide axially along the take-up shaft.

[0042] Optionally, a shoulder is formed on the take-up shaft, and one end of the unloading collar abuts against the shoulder.

[0043] Because one end of the unloading collar abuts against the shaft shoulder, the shaft shoulder can position the unloading collar, resulting in higher installation accuracy. Furthermore, it can also be used to determine if the collar is properly installed. Specifically, during installation, as long as one end of the unloading collar abuts against the shaft shoulder, it can be considered that the collar is in place, which is very convenient and user-friendly.

[0044] Optionally, a magnet is provided at one end of the unloading collar that abuts against the shoulder.

[0045] Because a magnet is installed at one end of the unloading collar that abuts against the shaft shoulder, the magnet can be attracted to the shaft shoulder when the unloading collar is installed in place, thereby fixing the unloading collar and preventing the unloading collar from sliding abnormally off the winding shaft.

[0046] Optionally, a feed slit is formed on the take-up shaft, and a connecting rib is provided on the unloading collar, the connecting rib being located in the feed slit.

[0047] Since the connecting rib is located on the unloading collar, when the unloading collar slides along the axial direction of the winding shaft, it can drive the connecting rib to slide along the axial direction of the winding shaft.

[0048] When the connecting bar slides along the axial direction of the take-up shaft, since the connecting bar is located in the feed gap, the connecting bar can push the waste roll to slide, thereby better ensuring that the waste roll is removed from the take-up shaft.

[0049] Optionally, the mounting component is provided with a clearance hole that passes through the mounting component along the axial direction of the take-up shaft. One end of the take-up shaft passes through the clearance hole and is located on the first side of the mounting component, while the other end of the take-up shaft, the first drive member, and the first moving member are all located on the second side of the mounting component.

[0050] Because one end of the take-up shaft passes through the clearance hole and is located on the first side of the mounting component, while the other end of the take-up shaft, the first drive component, and the first moving component are all located on the second side of the mounting component, the space on both sides of the mounting component can be fully utilized, making the entire winding device structure more compact and smaller in size. Furthermore, the first side of the mounting component is kept relatively simple, improving the appearance of the winding device. Additionally, the first side of the mounting component faces the user, allowing the first moving component to be further away from the user, thus improving the safety of the winding device and preventing or reducing the possibility of moving parts injuring the user.

[0051] Secondly, this application discloses a battery cell winding device, including the winding device described in any of the first aspects above.

[0052] Because a winding device can reduce the number of winding shafts, simplify the structure of the winding device, and lower its manufacturing cost, when a battery cell winding equipment includes a winding device, it can simplify the structure of the battery cell winding equipment and reduce its cost.

[0053] Compared with the prior art, the beneficial effects of this application are as follows:

[0054] In this application, since the first driving member is disposed on the mounting member, the first moving member is connected to the first driving member, and the take-up shaft is disposed on the first moving member, the first driving member can drive the take-up shaft to move to at least two different positions, thereby achieving the purpose of separately winding a section of material strip from the first unwinding shaft or a section of material strip from the second unwinding shaft among multiple unwinding shafts. In simpler terms, by driving the take-up shaft to move through the first driving member, one take-up shaft can correspond to multiple unwinding shafts, thus achieving the purpose of separately winding a section of material strip from multiple unwinding shafts through the same take-up shaft. In this way, it is unnecessary to have a take-up shaft corresponding to each unwinding shaft, thereby achieving the purpose of saving the number of take-up shafts, simplifying the structure of the changing device, and reducing the manufacturing cost of the changing device. Attached Figure Description

[0055] 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.

[0056] Figure 1 This is a schematic diagram of the structure of a roll changing device provided in one embodiment of this application;

[0057] Figure 2 yes Figure 1 Partial sectional view of the intermediate roll changing device at position AA (some structures omitted);

[0058] Figure 3 yes Figure 1 A schematic diagram of the winding mechanism;

[0059] Figure 4 yes Figure 1 A schematic diagram of the structure of the winding device when it is applied to the winding equipment;

[0060] Figure 5 yes Figure 3 A schematic diagram of the winding mechanism from another perspective;

[0061] Figure 6 yes Figure 3 Schematic diagram of the structure of the unloading collar;

[0062] Figure 7 yes Figure 2 A magnified view of the area at position B in the middle.

[0063] Explanation of reference numerals in the attached figures:

[0064] 1-Mounting component; 11-Allowance hole;

[0065] 2-Unwinding mechanism; 21-Unwinding shaft; 211-First unwinding shaft; 212-Second unwinding shaft;

[0066] 3-Rewinding mechanism; 31-First driving component; 32-First moving component; 321-Slide rail assembly; 322-Linear bearing; 33-Rewinding shaft; 331-Feed slot; 332-Airbag; 333-Shoulder; 34-Rotary drive assembly; 341-Rotary drive component; 342-Pulley structure; 3421-Driving pulley; 3422-Driven pulley; 3423-Transmission belt; 35-Translation drive assembly; 36-Support cylinder; 37-Unloading mechanism; 371-Unloading drive component; 372-Blocking component; 373-Unloading collar; 3731-Concave ring; 3732-Magnet; 3733-Connecting rib;

[0067] 100 - Rewinding device; 200 - Cell winding equipment; 201 - Rewinding needle;

[0068] F - Scrap roll; L - Material strip; J - Material roll. Detailed Implementation

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] Before explaining the technical solution of this application, the background technology of this application shall be explained first.

[0075] A winding device is used to continuously supply strip to the winding needles of a battery cell winding machine. Specifically, the unwinding device typically includes multiple unwinding shafts, each with a strip of strip on it. When the strip on one unwinding shaft is unwound, it needs to be taken over by a strip from another unwinding shaft to continue unwinding. Furthermore, due to process limitations, multiple take-up shafts are required for the multiple unwinding shafts, and each take-up shaft needs to take up a section of strip from the strip on its corresponding unwinding shaft. However, since each unwinding shaft requires a corresponding take-up shaft, the winding device becomes structurally complex and has high manufacturing costs. Therefore, this application provides a new winding device to solve the above problems.

[0076] The technical solution of this application will be described below with reference to specific embodiments and accompanying drawings.

[0077] 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 partial sectional view of the intermediate roll changing device 100 at position AA (some structures omitted). Figure 3 yes Figure 1 A schematic diagram of the winding mechanism 3.

[0078] See Figure 1 , Figure 2 and Figure 3The winding device 100 includes a mounting component 1, an unwinding mechanism 2, and a winding mechanism 3. The unwinding mechanism 2 includes multiple unwinding shafts 21, all of which are disposed on the mounting component 1. The winding mechanism 3 includes a first driving component 31, a first moving component 32, and a winding shaft 33. The first driving component 31 is disposed on the mounting component 1, the first moving component 32 is connected to the first driving component 31, and the winding shaft 33 is disposed on the first moving component 32.

[0079] Figure 4 yes Figure 1 A schematic diagram of the structure of the winding device 100 when it is applied to the winding equipment 200 is shown in the figure. Figure 4 When the winding device 100 continuously supplies the material strip L to the winding needle 201 of the battery cell winding equipment 200, firstly, each of the multiple unwinding shafts 21 can be fitted with a material roll J. Then, the material strip L can be supplied to the winding needle 201 through the material roll J on the first unwinding shaft 211 of the multiple unwinding shafts 21. At this time, the starting end of the material strip L of the material roll J on the second unwinding shaft 212 of the multiple unwinding shafts 21 can be clamped to the take-up shaft 33.

[0080] When the material strip L in the first unwinding shaft 211 is almost unwound, the material strip L in the second unwinding shaft 212 can be bonded to the material strip L in the first unwinding shaft 211, so that the material strip J on the second unwinding shaft 212 can take over from the material strip J on the first unwinding shaft 211 to continue to provide material strip L to the winding needle 201.

[0081] In this process, after the material strip L in the feed roll J on the second unwinding shaft 212 is bonded to the material strip L in the feed roll J on the first unwinding shaft 211, the starting end of the material strip L in the feed roll J on the second unwinding shaft 212 is clamped to the take-up shaft 33. Furthermore, during the bonding process, the section of material strip L containing the starting end of the material strip L will be cut off. Therefore, the take-up shaft 33 can rewind the section of material strip L containing the starting end, thereby achieving the purpose of rewinding a section of material strip L in the feed roll J on the second unwinding shaft 212 through the take-up shaft 33.

[0082] Next, a new roll J can be fitted onto the first unwinding shaft 211. At the same time, since the first driving member 31 is disposed on the mounting member 1, the first moving member 32 is connected to the first driving member 31, and the take-up shaft 33 is disposed on the first moving member 32, the first driving member 31 can drive the first moving member 32 to move, thereby driving the take-up shaft 33 to move to a position different from the position when the take-up shaft 33 winds up a section of the strip L of the roll J on the second unwinding shaft 212. When the take-up shaft 33 reaches this position, the starting end of the strip L of the roll J on the first unwinding shaft 211 can be clamped to the take-up shaft 33. After the roll J on the first unwinding shaft 211 takes over from the roll J on the second unwinding shaft 212 to provide strip L for the winding needle 201, a section of the strip L of the roll J on the first unwinding shaft 211 can be wound up by the take-up shaft 33.

[0083] Therefore, since the first driving member 31 is disposed on the mounting member 1, the first moving member 32 is connected to the first driving member 31, and the take-up shaft 33 is disposed on the first moving member 32, the first driving member 31 can drive the take-up shaft 33 to move to at least two different positions, thereby achieving the purpose of separately winding up a section L of the material roll J on the first unwinding shaft 211 or the second unwinding shaft 212 among multiple unwinding shafts 21. In simple terms, by driving the take-up shaft 33 to move by the first driving member 31, one take-up shaft 33 can correspond to multiple unwinding shafts 21, thereby achieving the purpose of separately winding up a section L of the material roll J on multiple unwinding shafts 21 through the same take-up shaft 33. In this way, it is not necessary to set up a take-up shaft 33 for each unwinding shaft 21, thereby achieving the purpose of saving the number of take-up shafts 33, simplifying the structure of the changing device 100, and reducing the manufacturing cost of the changing device 100.

[0084] It should be noted that the aforementioned mounting component 1 and the first moving component 32 can both be plate-shaped structures or other possible structures, and this embodiment does not limit them. The aforementioned first driving component 31 can be a cylinder or other possible structures, as long as it can drive the first moving component 32 to move, and this embodiment does not limit the first driving component 31.

[0085] In some embodiments, see Figure 2 and Figure 3 The first movable component 32 is slidably disposed on the mounting component 1.

[0086] By making the first movable member 32 slidably disposed on the mounting member 1, it is possible to make the movement of the first movable member 32 more stable and smooth when the first driving member 31 drives the first movable member 32 to move.

[0087] The first movable member 32 can be slidably disposed on the mounting member 1 in various ways. In one possible implementation, see [link to relevant documentation]. Figure 2and Figure 3 The first moving part 32 can be slidably disposed on the mounting part 1 via the slide rail assembly 321. Of course, the first moving part 32 can also be slidably disposed on the mounting part 1 in other ways, and this embodiment does not limit this.

[0088] In some embodiments, see Figure 2 The sliding direction of the first moving part 32 ( Figure 2 (in the X-axis direction) and the axial direction of the take-up shaft 33 ( Figure 2 (Perpendicular to the Y-axis direction).

[0089] By making the sliding direction of the first moving part 32 perpendicular to the axis of the take-up shaft 33, on the one hand, the layout of the take-up shaft 33 can be made more regular, which makes it easier to control and verify the installation accuracy when the take-up shaft 33 is installed on the first moving part 32. On the other hand, it is easier for the first moving part 32 to move the take-up shaft 33 to the position corresponding to different unwinding shafts 21 during the movement, so that the take-up shaft 33 can better wind up the material strip L of the material roll J on different unwinding shafts 21.

[0090] The sliding direction of the first moving member 32 being perpendicular to the axial direction of the take-up shaft 33 can be interpreted broadly. That is, it is sufficient to make the sliding direction of the first moving member 32 approximately perpendicular to the axial direction of the take-up shaft 33. This embodiment does not impose a narrow limitation on this.

[0091] Furthermore, in some embodiments, see Figure 2 and Figure 4 The axial direction of the take-up shaft 33 is parallel to the axial direction of the unwind shaft 21.

[0092] By aligning the axial direction of the take-up shaft 33 parallel to the axial direction of the unwind shaft 21, the layout of the take-up shaft 33 and the unwind shaft 21 becomes more regular, facilitating their installation. Furthermore, it also allows the take-up shaft 33 to better wind up the feed strip L of the feed roll J from the unwind shaft 21.

[0093] In some embodiments, see Figure 3 and Figure 5 , Figure 5 yes Figure 3 The diagram shows the structure of the winding mechanism 3 from another perspective. The winding mechanism 3 also includes a rotary drive assembly 34, which is disposed on the first moving member 32. The winding shaft 33 is rotatably disposed on the first moving member 32 around the axis of the winding shaft 33. The rotary drive assembly 34 is connected to the winding shaft 33.

[0094] Since the take-up shaft 33 is rotatably mounted on the first moving member 32 around its axis, and the rotary drive assembly 34 is mounted on the first moving member 32, the rotary drive assembly 34 can drive the take-up shaft 33 to rotate around its axis. When the take-up shaft 33 rotates around its axis, the purpose of taking up the material strip L can be achieved.

[0095] That is, by driving the take-up shaft 33 to rotate around the axis of the take-up shaft 33 through the rotary drive component 34, the purpose of taking up the material strip L can be achieved. The method and principle of taking up the material strip L are very simple, thus simplifying the structure of the entire roll changing device 100.

[0096] It should be noted that there are multiple ways in which the take-up shaft 33 can be rotatably disposed on the first moving member 32 around its axis. In one possible implementation, the take-up shaft 33 can be rotatably disposed on the first moving member 32 by means of a bearing. Of course, the take-up shaft 33 can also be rotatably disposed on the first moving member 32 by other means. This embodiment does not limit this.

[0097] The aforementioned rotary drive component 34 can be implemented in various ways. In one possible implementation, see [link to relevant documentation]. Figure 5 The rotary drive assembly 34 includes a rotary drive component 341 and a pulley structure 342. The rotary drive component 341 is disposed on the first moving component 32, and the pulley structure 342 is connected to the take-up shaft 33 and the rotary drive component 341 respectively.

[0098] Since the rotary drive 341 is located on the first moving part 32, and the pulley structure 342 is connected to the take-up shaft 33 and the rotary drive 341 respectively, the rotary drive 341 can drive the take-up shaft 33 to rotate through the pulley structure 342, thereby achieving the purpose of taking up the material strip L through the take-up shaft 33.

[0099] Because the pulley structure 342 has a simple structure, the cost of the rotary drive assembly 34 can be reduced.

[0100] Specifically, see Figure 5 The aforementioned pulley structure 342 may include a driving pulley 3421, a driven pulley 3422, and a transmission belt 3423. The rotary drive 341 is connected to the driving pulley 3421, and the driven pulley 3422 is connected to the take-up shaft 33. The transmission belt 3423 is fitted over the driving pulley 3421 and the driven pulley 3422. Thus, when the rotary drive 341 drives the driving pulley 3421 to rotate, the movement of the driving pulley 3421 is transmitted to the driven pulley 3422 via the transmission belt 3423, causing the driven pulley 3422 to also begin to rotate. When the driven pulley 3422 begins to rotate, it can drive the take-up shaft 33 to begin rotating, thereby achieving the purpose of winding the material belt L via the take-up shaft 33.

[0101] The rotary drive component 341 can be any component capable of driving the drive wheel 3421 to rotate, such as a stepper motor or a servo motor. This embodiment does not limit the rotary drive component 341.

[0102] In some embodiments, the driving pulley 3421 and the driven pulley 3422 can both be synchronous pulleys, and the transmission belt 3423 can be a synchronous belt. This arrangement can prevent the transmission belt 3423 from slipping on the driving pulley 3421 or the driven pulley 3422, thereby better ensuring that the movement of the driving pulley 3421 can be transmitted to the take-up shaft 33.

[0103] To prevent the material strip L from failing to be wound onto the take-up shaft 33 during take-up, thus preventing the material strip L from being wound onto the take-up shaft 33, in some embodiments, see [reference needed]. Figure 2 and Figure 3 A feed slit 331 is formed on the winding shaft 33, and an airbag 332 is provided on the winding shaft 33, with the airbag 332 located inside the feed slit 331.

[0104] Since the take-up shaft 33 has an inlet slot 331 and an air bladder 332, when the material strip L is inserted into the inlet slot 331, by inflating the air bladder 332, the material strip L can be fixed in the inlet slot 331. Then, when the take-up shaft 33 starts to rotate, the material strip L can be smoothly wound on the take-up shaft 33, thereby achieving the purpose of winding the material strip L on the take-up shaft 33.

[0105] In some embodiments, see Figure 5 The winding mechanism 3 also includes a translation drive assembly 35, which is disposed on the first moving member 32. The winding shaft 33 is slidably disposed on the first moving member 32 along the axial direction of the winding shaft 33. The translation drive assembly 35 is connected to the winding shaft 33.

[0106] Since the take-up shaft 33 is slidably disposed on the first moving member 32 along the axial direction of the take-up shaft 33, and the translation drive assembly 35 is connected to the take-up shaft 33, the translation drive assembly 35 can drive the take-up shaft 33 to slide relative to the first moving member 32 along the axial direction of the take-up shaft 33. When the translation drive assembly 35 drives the take-up shaft 33 to slide relative to the first moving member 32 along the axial direction of the take-up shaft 33, on the one hand, the position of the take-up shaft 33 can be adjusted along the axial direction of the take-up shaft 33, so that the take-up shaft 33 can better correspond to the unwinding shaft 21, thereby better winding up the material strip L in the unwinding shaft 21. On the other hand, by adjusting the position of the take-up shaft 33 along the axial direction of the take-up shaft 33, it is also possible to avoid the take-up shaft 33 colliding with other surrounding components during the position switching process driven by the first drive member 31, making the roll changing device 100 safer to use.

[0107] The translation drive component 35 can be a lead screw module or any other possible structure, as long as it can drive the take-up shaft 33 to slide relative to the first moving member 32 along the axial direction of the take-up shaft 33. This embodiment does not limit this.

[0108] It should be noted that there are multiple ways in which the aforementioned take-up shaft 33 can be slidably disposed on the first moving member 32 along the axial direction of the take-up shaft 33. In one possible implementation, see [link to relevant documentation]. Figure 5 The first movable member 32 may be provided with a linear bearing 322 extending axially along the take-up shaft 33. The take-up shaft 33 is slidably inserted into the linear bearing 322 along the axial direction of the take-up shaft 33. In this way, the purpose of making the take-up shaft 33 slidably disposed on the first movable member 32 along the axial direction of the take-up shaft 33 can be achieved. Of course, the take-up shaft 33 can also be slidably disposed on the first movable member 32 along the axial direction of the take-up shaft 33 in other ways, which will not be listed in this embodiment.

[0109] In some embodiments, see Figure 5 The winding mechanism 3 also includes a support cylinder 36, which is slidably inserted into the first moving member 32 along the axial direction of the winding shaft 33. The translation drive assembly 35 is connected to the support cylinder 36, and a portion of the structure of the winding shaft 33 is rotatably disposed inside the support cylinder 36 around the axis of the winding shaft 33.

[0110] Since a portion of the structure of the take-up shaft 33 is rotatably disposed within the support cylinder 36 around the axis of the take-up shaft 33, and since the support cylinder 36 is slidably inserted into the first moving member 32 along the axial direction of the take-up shaft 33, and the translation drive assembly 35 is connected to the support cylinder 36, under the action of the support cylinder 36, in addition to being able to rotate relative to the first moving member 32 around the axis of the take-up shaft 33, the support cylinder 36 can also drive the take-up shaft 33 to slide relative to the first moving member 32 along the axial direction of the take-up shaft 33. The support cylinder 36 provides structural protection for the rotation and movement of the take-up shaft 33 relative to the first moving member 32.

[0111] As described above, when the take-up shaft 33 is rotatable relative to the first moving member 32 about its axis, the take-up shaft 33 can wind a section of strip L around itself to form a waste roll F. To facilitate the removal of the waste roll F from the take-up shaft 33, in some embodiments, see... Figure 3 and Figure 5 The winding mechanism 3 also includes an unloading mechanism 37, which includes an unloading drive 371 and a blocking member 372. The unloading drive 371 is disposed on the first moving member 32, and the blocking member 372 is connected to the unloading drive 371. The unloading drive 371 is used to drive the blocking member 372 to move closer to or away from the winding shaft 33 along the radial direction of the winding shaft 33.

[0112] Since the unloading drive 371 is disposed on the first moving member 32 and the blocking member 372 is connected to the unloading drive 371, the unloading drive 371 can drive the blocking member 372 to move radially toward the winding shaft 33, so that the blocking member 372 can move to one side of the waste roll F along the axial direction of the winding shaft 33. Figure 3 (Left side of the waste roll F), then, when the translation drive assembly 35 drives the take-up shaft 33 to slide relative to the first moving member 32 along the axial direction of the take-up shaft 33 ( Figure 3 When the take-up shaft 33 slides to the left, the blocking member 372 can prevent the waste roll F from sliding with the take-up shaft 33, thereby allowing the waste roll F to be smoothly disassembled from the take-up shaft 33, making the disassembly of the waste roll F more automated, thus reducing the labor intensity of personnel.

[0113] The unloading drive component 371 can be an electric cylinder or a pneumatic cylinder, etc. This embodiment does not limit the unloading drive component 371.

[0114] In some embodiments, the blocking member 372 is a clamp. Since the clamp can better match the shape of the take-up shaft 33, and part of the clamp's structure can surround the peripheral wall of the take-up shaft 33, the clamp can better prevent the waste roll F from sliding along the take-up shaft 33, thereby better ensuring that the waste roll F can be removed from the take-up shaft 33.

[0115] Of course, in other embodiments, the blocking member 372 may also have other possible structures, which are not limited in this embodiment.

[0116] In some embodiments, see Figure 3 and Figure 6 , Figure 6 yes Figure 3 The unloading mechanism 37 also includes an unloading collar 373, which is slidably sleeved on the winding shaft 33 along the axial direction of the winding shaft 33. The unloading drive member 371 is used to drive the blocking member 372 to move closer to or away from the unloading collar 373 along the radial direction of the winding shaft 33.

[0117] Since the unloading collar 373 is slidably sleeved on the take-up shaft 33 along the axial direction of the take-up shaft 33, when the unloading drive 371 drives the blocking member 372 to move radially towards the unloading collar 373 along the take-up shaft 33, the blocking member 372 can engage with the unloading collar 373 or reach one side of the unloading collar 373 along the axial direction of the take-up shaft 33. Figure 3 (Left side of the waste roll F), in this way, when the translation drive assembly 35 drives the take-up shaft 33 to slide relative to the first moving member 32 along the axial direction of the take-up shaft 33 ( Figure 3 When the take-up shaft 33 slides to the left, the blocking member 372 can prevent the unloading sleeve 373 from sliding with the take-up shaft 33. In this case, if the unloading sleeve 373 is provided with a waste roll F on the side opposite to the unloading sleeve 373 along the axial direction of the take-up shaft 33, the unloading sleeve 373 can also push the waste roll F off the take-up shaft 33 during the sliding process relative to the take-up shaft 33, thereby achieving the purpose of removing the waste roll F from the take-up shaft 33.

[0118] In order to ensure that the blocking member 372 can be more stably engaged with the unloading collar 373 when the unloading drive member 371 drives the blocking member 372 to move radially toward the unloading collar 373 along the take-up shaft 33, in some embodiments, see Figure 6 The unloading collar 373 is provided with a concave ring 3731 that matches the blocking member 372. The concave ring 3731 is located on the peripheral wall of the unloading collar 373 around the axis of the winding shaft 33.

[0119] Since the unloading collar 373 is provided with a concave ring 3731 that matches the blocking member 372, and the concave ring 3731 is located on the peripheral wall of the unloading collar 373 around the axis of the take-up shaft 33, when the unloading drive member 371 drives the blocking member 372 to move radially toward the unloading collar 373 along the take-up shaft 33, the blocking member 372 can be engaged in the unloading collar 373. In this way, the engagement between the blocking member 372 and the unloading collar 373 can be made more secure, thereby driving the unloading collar 373 to slide axially along the take-up shaft 33 more stably.

[0120] In some embodiments, see Figure 3 A shoulder 333 is formed on the winding shaft 33, and one end of the unloading collar 373 abuts against the shoulder 333.

[0121] Since one end of the unloading collar 373 abuts against the shoulder 333, the shoulder 333 can position the unloading collar 373, resulting in higher installation accuracy. Furthermore, it can also be used to determine if the unloading collar 373 is properly installed. Specifically, during installation, as long as one end of the unloading collar 373 abuts against the shoulder 333, it can be considered that the unloading collar 373 is in place, which is very convenient and user-friendly.

[0122] To ensure a more stable installation of the unloading collar 373 on the take-up shaft 33, in some embodiments, see [reference needed]. Figure 7 , Figure 7 yes Figure 2 A magnified view of the middle B position shows that the shoulder 333 is a ferromagnetic component, and a magnet 3732 is provided at one end of the unloading collar 373 that abuts against the shoulder 333.

[0123] Since the shoulder 333 is a ferromagnetic component, a magnet 3732 is provided at one end of the unloading collar 373 that abuts against the shoulder 333. Therefore, when the unloading collar 373 is installed in place, the magnet 3732 can just be attracted to the shoulder 333, thereby achieving the function of fixing the unloading collar 373 and preventing the unloading collar 373 from sliding abnormally from the winding shaft 33.

[0124] In addition, by making the shoulder 333 a ferromagnetic component, and providing a magnet 3732 at one end of the unloading collar 373 that abuts against the shoulder 333, the unloading collar 373 can be attracted to the shoulder 333. In addition to positioning the unloading collar 373, the shoulder 333 can also fix the unloading collar 373. The shoulder 333 serves multiple purposes, thereby simplifying the structure of the winding shaft 33 and reducing the cost of the winding shaft 33.

[0125] The aforementioned shoulder 333 can be an iron shoulder or a shoulder of any other ferromagnetic component; this embodiment does not limit this.

[0126] In some embodiments, see Figure 3 and Figure 6 A feed slit 331 is formed on the winding shaft 33, and a connecting rib 3733 is provided on the unloading collar 373. The connecting rib 3733 is located in the feed slit 331.

[0127] Since the connecting rib 3733 is provided on the unloading collar 373, when the unloading collar 373 slides along the axial direction of the winding shaft 33, it can drive the connecting rib 3733 to slide along the axial direction of the winding shaft 33.

[0128] When the connecting rib 3733 slides along the axial direction of the take-up shaft 33, since the connecting rib 3733 is located in the feed slot 331, the connecting rib 3733 can push the waste roll F to slide, thereby better ensuring that the waste roll F is removed from the take-up shaft 33.

[0129] There are multiple ways in which the aforementioned connecting rib 3733 can be disposed on the unloading collar 373. In one possible implementation, see [link to relevant documentation]. Figure 6 The connecting rib 3733 can be located inside the unloading collar 373, and both ends of the connecting rib 3733 are respectively connected to the inner wall of the unloading collar 373. This arrangement allows the unloading collar 373 to partially enclose the connecting rib 3733, thereby improving the overall integrity of the unloading collar 373 and the connecting rib 3733 and making the appearance more regular.

[0130] In some embodiments, see Figure 1 and Figure 2 The mounting component 1 is provided with a clearance hole 11 that passes through the mounting component 1 along the axial direction of the winding shaft 33. One end of the winding shaft 33 passes through the clearance hole 11 and is located on the first side of the mounting component 1. The other end of the winding shaft 33, the first driving component 31 and the first moving component 32 are all located on the second side of the mounting component 1.

[0131] Since one end of the take-up shaft 33 passes through the clearance hole 11 and is located on the first side of the mounting member 1, while the other end of the take-up shaft 33, the first drive member 31, and the first moving member 32 are all located on the second side of the mounting member 1, the space on both sides of the mounting member 1 can be fully utilized, making the entire winding device 100 more compact and smaller in size. Furthermore, the first side of the mounting member 1 is kept relatively simple, improving the appearance of the winding device 100. Additionally, the first side of the mounting member 1 faces the user, allowing the first moving member 32 to be further away from the user, thus improving the safety of the winding device 100 and preventing or reducing the possibility of moving parts injuring the user.

[0132] See Figure 4 One embodiment of this application provides a battery cell winding device 200, which includes a winding device 100.

[0133] 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 in the above embodiments. This embodiment will not repeat the description here.

[0134] In this embodiment, the winding device 100 can achieve the goals of saving the number of take-up shafts 33, simplifying the structure of the winding device 100, and reducing the manufacturing cost of the winding device 100. Based on this, when the battery cell winding equipment 200 includes the winding device 100, it can achieve the goals of simplifying the structure of the battery cell winding equipment 200 and reducing the cost of the battery cell winding equipment 200.

[0135] 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: Mounting component (1); An unwinding mechanism (2), the unwinding mechanism (2) comprising a plurality of unwinding shafts (21); and, The winding mechanism (3) includes a first driving member (31), a first moving member (32) and a winding shaft (33). The first driving member (31) is disposed on the mounting member (1), the first moving member (32) is connected to the first driving member (31), and the winding shaft (33) is disposed on the first moving member (32).

2. The roll changing device (100) according to claim 1, characterized in that, Each of the unwinding shafts (21) can be fitted with a roll of material (J), and the first drive member (31) is used to drive the take-up shaft (33) to move to at least two different positions to respectively take up a section of material strip (L) of the roll of material (J) on the first unwinding shaft (211) or a section of material strip (L) of the roll of material (J) on the second unwinding shaft (212) among the plurality of unwinding shafts (21).

3. The roll changing device (100) according to claim 1, characterized in that, The first movable member (32) is slidably disposed on the mounting member (1).

4. The roll changing device (100) according to claim 3, characterized in that, The sliding direction of the first moving member (32) is perpendicular to the axial direction of the winding shaft (33).

5. The roll changing device (100) according to claim 1, characterized in that, The winding mechanism (3) also includes: A rotary drive assembly (34) is disposed on the first movable member (32), and a take-up shaft (33) is rotatably disposed on the first movable member (32) about the axis of the take-up shaft (33). The rotary drive assembly (34) is connected to the take-up shaft (33).

6. The roll changing device (100) according to claim 5, characterized in that, The rotary drive assembly (34) includes: A rotary drive member (341) is disposed on the first moving member (32); and, A pulley structure (342) is connected to the take-up shaft (33) and the rotary drive (341) respectively.

7. The roll changing device (100) according to claim 1, characterized in that, A feed slit (331) is formed on the take-up shaft (33), and an airbag (332) is provided on the take-up shaft (33), the airbag (332) being located inside the feed slit (331).

8. The rewinding device (100) according to any one of claims 1-7, characterized in that, The winding mechanism (3) also includes: A translation drive assembly (35) is disposed on the first moving member (32), and a take-up shaft (33) is slidably disposed on the first moving member (32) along the axial direction of the take-up shaft (33). The translation drive assembly (35) is connected to the take-up shaft (33).

9. The roll changing device (100) according to claim 8, characterized in that, The winding mechanism (3) also includes: A support cylinder (36) is slidably inserted into the first moving member (32) along the axial direction of the take-up shaft (33). The translation drive assembly (35) is connected to the support cylinder (36). A portion of the structure of the take-up shaft (33) is rotatably disposed inside the support cylinder (36) about the axis of the take-up shaft (33).

10. The rewinding device (100) according to claim 8, characterized in that, The winding mechanism (3) further includes an unloading mechanism (37), which includes: An unloading drive unit (371) is disposed on the first moving member (32); A blocking member (372) is connected to the unloading drive member (371), which is used to drive the blocking member (372) to move closer to or away from the winding shaft (33) in the radial direction of the winding shaft (33).

11. The rewinding device (100) according to claim 10, characterized in that, The blocking component (372) is a clamp.

12. The rewinding device (100) according to claim 10, characterized in that, The unloading mechanism (37) also includes: The unloading collar (373) is slidably sleeved on the winding shaft (33) along the axial direction of the winding shaft (33). The unloading drive (371) is used to drive the blocking member (372) to move closer to or away from the unloading collar (373) along the radial direction of the winding shaft (33).

13. The rewinding device (100) according to claim 12, characterized in that, The unloading collar (373) is provided with a concave ring (3731) that matches the blocking member (372), and the concave ring (3731) is disposed on the peripheral wall of the unloading collar (373) around the axis of the winding shaft (33).

14. The rewinding device (100) according to claim 12, characterized in that, A shoulder (333) is formed on the winding shaft (33), and one end of the unloading collar (373) abuts against the shoulder (333).

15. The rewinding device (100) according to claim 14, characterized in that, A magnet (3732) is provided at one end of the unloading collar (373) that abuts against the shoulder (333).

16. The rewinding device (100) according to claim 12, characterized in that, The take-up shaft (33) has an inlet slit (331) and the unloading collar (373) is provided with a connecting rib (3733), which is located in the inlet slit (331).

17. The rewinding device (100) according to any one of claims 1-7 or 9-16, characterized in that, The mounting component (1) is provided with a clearance hole (11) that passes through the mounting component (1) along the axial direction of the take-up shaft (33). One end of the take-up shaft (33) passes through the clearance hole (11) and is located on the first side of the mounting component (1). The other end of the take-up shaft (33), the first drive member (31), and the first moving member (32) are all located on the second side of the mounting component (1).

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

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