Automatic roll changing device and winding equipment
By designing an automatic roll-changing device with a rotatable and axially movable take-up roller and pulley structure, the problem of material strip adhesion and misalignment was solved, improving the quality of battery cells and production efficiency, and reducing equipment costs.
Patent Information
- Application Number
- CN202520172931.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing winding equipment is prone to misalignment in the width direction when bonding the working strip and the spare strip, resulting in poor cell quality.
Design an automatic roll changing device, including a rotatable and axially movable take-up roller, which aligns the strip along the width direction by moving the take-up roller, and achieves automated control through a pulley structure and a detection module.
It improved the alignment of the material strip splicing, enhanced the quality of the battery cells, reduced equipment costs and automation, and increased production efficiency.
Smart Images
Figure CN223871486U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery processing equipment technology, and in particular to an automatic roll changing device and a winding device. Background Technology
[0002] A winding machine is a device that uses rotating needles to wind electrode sheets and other materials onto a winding needle to create battery cells. To ensure continuous winding and cell production, winding machines typically include a working roll and a spare roll. First, the working roll supplies material to the winding needle. When the working roll is nearly depleted, the end of the working roll is attached to the beginning of the spare roll using adhesive tape, completing the tape connection. This allows the spare roll to continue supplying material to the winding needle.
[0003] However, when bonding the end of the working material strip to the beginning of the spare material strip, the two often become misaligned or misplacing along the width of the strip, resulting in poor cell quality. Utility Model Content
[0004] This application discloses an automatic roll changing device and a winding equipment, which can align the working strip and the spare strip along the width direction of the strip, resulting in a high degree of alignment and thus better quality of the battery cells.
[0005] To achieve the above objectives, in a first aspect, this application discloses an automatic roll changing device, comprising:
[0006] An unwinding assembly, used to unwind the first and second strips;
[0007] A take-up roller assembly, the take-up roller assembly including a first take-up roller, the first take-up roller being rotatably disposed and movable along the axial direction of the first take-up roller, the first take-up roller being used to wind up the first strip and / or the second strip;
[0008] A tape-attaching mechanism is located on the conveying path of the first tape and the second tape and between the take-up roller assembly and the unwinding assembly, for attaching the first tape to the second tape.
[0009] Since the first take-up roller is rotatably configured, when the first take-up roller rotates, the purpose of winding the first strip and / or the second strip can be achieved.
[0010] Furthermore, since the first take-up roller is movable along its axial direction, when it is necessary to bond the tail end of the first strip to the starting end of the second strip, if there is a misalignment or misalignment between the two strips along their width direction, then simply moving the first take-up roller along its axial direction can drive either the first or second strip to move along its axial direction, thereby aligning the first and second strips along their width direction and improving the alignment of the first and second strips. Based on this, when this automatic winding device is applied to a winding equipment, and the winding equipment is used to process battery cells, the quality of the battery cells can be improved.
[0011] Optionally, the take-up roller assembly further includes:
[0012] The second take-up roller is rotatably configured and is used to wind up the second strip, while the first take-up roller is used to wind up the first strip.
[0013] By having the second take-up roller take up the second strip and the first take-up roller take up the first strip, the second take-up roller and the first take-up roller can take up different strips separately. In simple terms, the second take-up roller can take up the second strip specifically, and the first take-up roller can take up the first strip specifically, thereby avoiding interference between the second strip and the first strip during the winding process.
[0014] Optionally, the take-up roller assembly further includes:
[0015] Take-up roller support;
[0016] A take-up roller moving member, wherein both the first take-up roller and the second take-up roller are rotatably mounted on the take-up roller moving member; and...
[0017] A take-up roller moving drive is disposed on the take-up roller support and is used to drive the take-up roller moving component to move along the axial direction of the first take-up roller.
[0018] Since both the first and second take-up rollers can be rotatably mounted on the take-up roller moving component, when the take-up roller moving drive component drives the take-up roller moving component to move along the axial direction of the first take-up roller, it can simultaneously drive the first and second take-up rollers to move along the axial direction of the first take-up roller. That is, the same take-up roller moving drive component can simultaneously drive the first and second take-up rollers to move along the axial direction of the first take-up roller, eliminating the need to set up separate take-up roller moving drive components for the second and first take-up rollers, thereby achieving the goal of reducing the cost of the take-up roller assembly.
[0019] Optionally, the take-up roller assembly further includes:
[0020] A take-up roller rotation drive module is disposed on the take-up roller moving part and is used to drive the first take-up roller and the second take-up roller to rotate.
[0021] By incorporating a take-up roller rotation drive module, which can drive both the first and second take-up rollers to rotate, the goal of automatically winding the material strip can be achieved, resulting in a higher degree of automation. Furthermore, since the same take-up roller rotation drive module can drive both the first and second take-up rollers, there is no need to set up separate drive modules for each roller. Therefore, the number of take-up roller rotation drive modules can be reduced, thereby lowering the cost of the take-up roller assembly.
[0022] Optionally, the take-up roller rotation drive module includes:
[0023] A take-up roller rotation drive, wherein the take-up roller rotation drive is disposed on the take-up roller moving member; and...
[0024] A pulley structure is provided, wherein the pulley structure is respectively connected to the first take-up roller and the second take-up roller for transmission.
[0025] The take-up roller rotation drive is used to synchronously drive the first take-up roller and the second take-up roller to rotate via the pulley structure.
[0026] Since the pulley structure is connected to the first and second take-up rollers respectively, when the take-up roller rotation drive starts to rotate either the first or the second take-up roller, the pulley structure can synchronously transmit the rotation to the other. That is, under the action of the pulley structure, the same take-up roller rotation drive can synchronously drive the first and second take-up rollers to rotate, without the need to set up independent take-up roller rotation drives for the first and second take-up rollers respectively. This can reduce the number of take-up roller rotation drives and reduce the cost of the take-up roller assembly.
[0027] Optionally, the pulley structure includes:
[0028] A drive wheel is sleeved on the first take-up roller, and the take-up roller rotation drive is used to drive the drive wheel to rotate.
[0029] Driven wheel, the driven wheel being sleeved on the second take-up roller; and
[0030] A belt is fitted onto the drive pulley and the driven pulley. Since the drive pulley is fitted onto the first take-up roller, the driven pulley is fitted onto the second take-up roller, and the belt is fitted onto the drive pulley and the driven pulley, when the take-up roller rotation drive drives the drive pulley to rotate, the rotation of the drive pulley can be transmitted to the driven pulley through the belt, thereby achieving the purpose of synchronously driving the first take-up roller and the second take-up roller to rotate.
[0031] Among them, since the cost of the driving pulley, driven pulley and belt is relatively low, the cost of the pulley structure can be reduced.
[0032] Since the drive wheel is sleeved on the first take-up roller, the driven wheel is sleeved on the second take-up roller, and the belt is sleeved on the drive wheel and the driven wheel, when the take-up roller rotation drive drives the drive wheel to rotate, the rotation of the drive wheel can be transmitted to the driven wheel through the belt, thereby achieving the purpose of synchronously driving the first take-up roller and the second take-up roller to rotate.
[0033] Among them, since the cost of the driving pulley, driven pulley and belt is relatively low, the cost of the pulley structure can be reduced.
[0034] Optionally, the take-up roller assembly further includes:
[0035] A lead screw, which extends axially along the first take-up roller, and the take-up roller moving drive is used to drive the lead screw to rotate;
[0036] The take-up roller moving part is movably disposed on the take-up roller support along the axial direction of the first take-up roller, and the lead screw passes through the take-up roller moving part and is threadedly connected to the take-up roller moving part.
[0037] Since the lead screw passes through and is threadedly connected to the take-up roller moving part, and since the take-up roller moving part is movably disposed on the take-up roller support along the axial direction of the first take-up roller, when the take-up roller moving drive drives the lead screw to rotate, the take-up roller moving part can move along the axial direction of the first take-up roller.
[0038] As can be seen, the take-up roller moving drive can achieve the purpose of moving the take-up roller along the axial direction of the first take-up roller by driving the lead screw to rotate. In this process, the rotational motion of the take-up roller moving drive can be converted into the movement motion of the take-up roller. In this way, when selecting the take-up roller moving drive, a rotary motor with output rotational motion and lower price can be selected, instead of necessarily selecting a linear motor with output linear motion and higher price, thereby achieving the purpose of reducing the cost of the take-up roller assembly.
[0039] Optionally, the automatic roll changing device further includes:
[0040] The detection module includes a first detection component, which is used to detect the offset of the first strip along the axial direction of the first take-up roller.
[0041] And / or,
[0042] The second detection component is used to detect the offset of the second strip along the axial direction of the second take-up roller.
[0043] By setting up a first detection component, the offset of the first strip along the axial direction of the first take-up roller can be automatically detected, making the automatic roll changing device more intelligent and more automated.
[0044] Similarly, by setting a second detection component, the offset of the second strip along the axial direction of the second take-up roller can be automatically detected, making the automatic roll changing device more intelligent and more automated.
[0045] Optionally, the first detection component includes:
[0046] Sensor mounting base;
[0047] The first sensor; and,
[0048] The second sensor is positioned opposite to the first sensor at a distance to form a detection slot through which the first material belt passes.
[0049] The sensor mounting base is provided with an air blowing hole, which is used to blow air toward the detection end of the first sensor and / or the detection end of the second sensor.
[0050] By providing air blowing holes on the sensor mounting base and blowing air towards the detection end of the first sensor and / or the detection end of the second sensor, dust on the detection end of the first sensor and / or the detection end of the second sensor can be blown away in a timely manner, thereby improving the detection accuracy of the first detection component.
[0051] Optionally, the sensor mounting base is provided with a material passage slit for the first material belt to pass through, the first sensor is located on one side of the material passage slit, and the second sensor is located on the other side of the material passage slit.
[0052] By providing a material passage slot on the sensor mounting base for the first material strip to pass through, the sensor mounting base can limit the first material strip within the material passage slot. In other words, the sensor mounting base can limit the first material strip, thereby reducing the possibility of large-scale shaking of the first material strip to a certain extent.
[0053] Optionally, the unwinding assembly includes a first unwinding shaft and a second unwinding shaft, the first take-up roller corresponds to the first unwinding shaft and is used to take up the first strip unwound from the first unwinding shaft, and the second take-up roller corresponds to the second unwinding shaft and is used to take up the second strip unwound from the second unwinding shaft.
[0054] Since the first take-up roller corresponds to the first unwinding shaft and the second take-up roller corresponds to the second unwinding shaft, the first unwinding shaft can be dedicated to unwinding the first strip, the second unwinding shaft can be dedicated to unwinding the second strip, the first take-up roller can be dedicated to winding the first strip unwinding from the first unwinding shaft, and the second take-up roller can be dedicated to winding the second strip unwinding from the second unwinding shaft. This makes the unwinding and winding of the first and second strips independent of each other, thus avoiding interference between the second and first strips during winding and unwinding.
[0055] Secondly, this application discloses a winding device, including the automatic winding device described in any of the first aspects above.
[0056] Since the automatic roll changer can automatically connect the roll, the efficiency of the winding equipment in processing battery cells can be improved when the winding equipment includes an automatic roll changer.
[0057] Furthermore, the automatic winding device allows the first and second strips to be aligned along their width. Therefore, when this device is applied to a winding machine, and the winding machine is used to process battery cells, the quality of the battery cells can be improved.
[0058] Compared with the prior art, the beneficial effects of this application are as follows:
[0059] In this application, since the first take-up roller is rotatably arranged, when the first take-up roller rotates, the purpose of winding the first strip and / or the second strip can be achieved.
[0060] Furthermore, since the first take-up roller is movable along its axial direction, when it is necessary to bond the tail end of the first strip to the starting end of the second strip, if there is a misalignment or misalignment between the two strips along their width direction, then simply moving the first take-up roller along its axial direction can drive either the first or second strip to move along its axial direction, thereby aligning the first and second strips along their width direction and improving the alignment of the first and second strips. Based on this, when this automatic winding device is applied to a winding equipment, and the winding equipment is used to process battery cells, the quality of the battery cells can be improved. Attached Figure Description
[0061] 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.
[0062] Figure 1 This is a schematic diagram of the structure of a receiving roller assembly provided in one embodiment of this application;
[0063] Figure 2 yes Figure 1 A schematic diagram of the intermediate receiving roller assembly from another perspective;
[0064] Figure 3 yes Figure 2 A partial cross-sectional view of the take-up roller assembly from another perspective (partial structure omitted);
[0065] Figure 4 This is a schematic diagram of the structure of the take-up roller assembly provided in one embodiment of this application when applied to an automatic roll changing device;
[0066] Figure 5 This is a schematic diagram of the structure when the first and second material strips are misaligned.
[0067] Figure 6 yes Figure 4 A schematic diagram of the structure of the first detection group in the image from another perspective;
[0068] Figure 7 This is a schematic diagram of the structure of a winding device provided in one embodiment of this application.
[0069] Explanation of main figure symbols
[0070] 1-First take-up roller;
[0071] 2-Second take-up roller;
[0072] 3-Receiving roller support;
[0073] 4-Receiving roller moving parts;
[0074] 5- Receiving roller moving drive component;
[0075] 6-Receiving roller rotation drive module; 61-Receiving roller rotation drive component; 62-Pulley structure; 621-Driving pulley; 622-Driven pulley; 623-Belt;
[0076] 7-Lead screw;
[0077] 100 - Take-up roller assembly;
[0078] 200 - Automatic roll changing device; 201 - First unwinding shaft; 202 - Second unwinding shaft; 203 - Belt splicing mechanism; 204 - Detection module; 2041 - First detection component; 2041a - Sensor mounting base; 2041b - First sensor; 2041c - Second sensor; 2041d - Detection slot; 2041e - Air blowing hole; 2041f - Material passage slot; 2042 - Second detection component;
[0079] 300 - Winding equipment; 301 - Winding needle;
[0080] 400 - Unwind assembly;
[0081] L1 - First material strip; L2 - Second material strip. Detailed Implementation
[0082] 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.
[0083] 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.
[0084] 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.
[0085] 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.
[0086] 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.
[0087] Before explaining the technical solution of this application, the background technology of this application shall be explained first.
[0088] A winding machine is a device that uses rotating needles to wind electrode sheets and other materials onto a winding needle to create battery cells. To ensure continuous winding and cell production, winding machines typically include a working roll and a spare roll. First, the working roll supplies material to the winding needle. When the working roll is nearly depleted, the end of the working roll is attached to the beginning of the spare roll using adhesive tape, completing the tape connection. This allows the spare roll to continue supplying material to the winding needle.
[0089] However, when bonding the tail end of the working strip to the starting end of the spare strip, misalignment and displacement often occur along the width of the strip, resulting in poor cell quality. Therefore, this application provides an automatic winding device and winding equipment to solve the above problems.
[0090] The technical solution of this application will be described below with reference to specific embodiments and accompanying drawings.
[0091] Figure 1 This is a schematic diagram of the structure of a receiving roller assembly 100 according to an embodiment of this application. Figure 2 yes Figure 1 A schematic diagram of the intermediate receiving roller assembly 100 from another perspective. Figure 3 yes Figure 2 A partial cross-sectional view of the take-up roller assembly 100 from another perspective (partial structure omitted).
[0092] See Figure 1 , Figure 2 and Figure 3 The take-up roller assembly 100 includes a first take-up roller 1, wherein the first take-up roller 1 is rotatably disposed, and the first take-up roller 1 can be moved along the axial direction of the first take-up roller 1. Figure 3 (Moves along the X-axis).
[0093] Figure 4 This is a schematic diagram of the structure of the take-up roller assembly 100 provided in one embodiment of this application when applied to the automatic roll changing device 200. See also: Figure 3 and Figure 4The automatic roll changing device 200 includes an unwinding assembly 400, a take-up roller assembly 100, and a tape receiving mechanism 203. The unwinding assembly 400 is used to unwind a first tape L1 and a second tape L2. The tape receiving mechanism 203 is located on the conveying path of the first tape L1 and the second tape L2 and is located between the take-up roller assembly 100 and the unwinding assembly 400. It is used to bond the first tape L1 to the second tape L2.
[0094] Since the first take-up roller 1 is rotatably configured, when the first take-up roller 1 rotates, it can achieve the purpose of winding the first strip L1 and / or the second strip L2.
[0095] Furthermore, because the first take-up roller 1 is along the axial direction of the first take-up roller 1 ( Figure 3 The material is movable (in the Z-axis direction), therefore, when it is necessary to attach the tail end of the first strip L1 to the starting end of the second strip L2, see [reference needed]. Figure 5 , Figure 5 This is a structural diagram showing the misalignment of the first material strip L1 and the second material strip L2. It assumes that they are misaligned and not aligned along the width of the strips. Figure 5 (as shown by the dashed line), then, it is only necessary to make the first take-up roller 1 move along the axial direction of the first take-up roller 1 ( Figure 3 Moving along the Z-axis can cause either the first material strip L1 or the second material strip L2 to move axially along the first take-up roller 1, thereby aligning the first material strip L1 and the second material strip L2 along the width direction of the strip. Figure 5 (as shown by the solid line in the middle), thereby improving the alignment of the first strip L1 and the second strip L2. Based on this, when the automatic roll changing device 200 is applied to the winding equipment 300 and the winding equipment 300 is used to process battery cells, the quality of the battery cells can be improved.
[0096] In this context, the first material strip L1 can be understood as either a working material strip or a spare material strip. Similarly, the second material strip L2 can be understood as either a working material strip or a spare material strip.
[0097] The aforementioned material strip can be an electrode sheet or a diaphragm, etc., and this embodiment does not limit it.
[0098] In some embodiments, see Figure 3 and Figure 4 The take-up roller assembly 100 also includes a second take-up roller 2, which is rotatably arranged and used to take up the second strip L2, while the first take-up roller 1 is used to take up the first strip L1.
[0099] By having the second take-up roller 2 take up the second strip L2 and the first take-up roller 1 take up the first strip L1, the second take-up roller 2 and the first take-up roller 1 can take up different strips respectively. In simple terms, the second take-up roller 2 can take up the second strip L2 specifically, and the first take-up roller 1 can take up the first strip L1 specifically. This avoids interference between the second strip L2 and the first strip L1 during the take-up process.
[0100] In some embodiments, see Figure 4 The unwinding assembly 400 includes a first unwinding shaft 201 and a second unwinding shaft 202. A first take-up roller 1 corresponds to the first unwinding shaft 201 and is used to take up the first strip L1 unwinded from the first unwinding shaft 201. A second take-up roller 2 corresponds to the second unwinding shaft 202 and is used to take up the second strip L2 unwinded from the second unwinding shaft 202.
[0101] Since the first take-up roller 1 corresponds to the first unwinding shaft 201 and the second take-up roller 2 corresponds to the second unwinding shaft 202, the first unwinding shaft 201 can specifically unwind the first strip L1, the second unwinding shaft 202 can specifically unwind the second strip L2, the first take-up roller 1 can specifically wind the first strip L1 unwinding from the first unwinding shaft 201, and the second take-up roller 2 can specifically wind the second strip L2 unwinding from the second unwinding shaft 202. This makes the unwinding and winding of the first strip L1 and the second strip L2 independent of each other. This avoids interference between the second strip L2 and the first strip L1 during winding, and also avoids interference between the second strip L2 and the first strip L1 during unwinding.
[0102] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The take-up roller assembly 100 also includes a take-up roller support 3, a take-up roller moving part 4, and a take-up roller moving drive part 5. The first take-up roller 1 and the second take-up roller 2 are rotatably mounted on the take-up roller moving part 4. The take-up roller moving drive part 5 is disposed on the take-up roller support 3 and is used to drive the take-up roller moving part 4 to move along the axial direction of the first take-up roller 1.
[0103] Since both the first take-up roller 1 and the second take-up roller 2 can be rotatably mounted on the take-up roller moving member 4, when the take-up roller moving drive member 5 drives the take-up roller moving member 4 to move along the axial direction of the first take-up roller 1, it can simultaneously drive the first take-up roller 1 and the second take-up roller 2 to move along the axial direction of the first take-up roller 1. That is, the same take-up roller moving drive member 5 can simultaneously drive the first take-up roller 1 and the second take-up roller 2 to move along the axial direction of the first take-up roller 1, without the need to set up separate take-up roller moving drive members 5 for the second take-up roller 2 and the first take-up roller 1, thereby achieving the goal of reducing the cost of the take-up roller assembly 100.
[0104] The aforementioned take-up roller moving drive component 5 can be a motor, a cylinder, or any other possible structure, and this embodiment does not limit this. The aforementioned take-up roller moving component 4 can be a flat plate structure or any other possible structure, and this embodiment does not limit this.
[0105] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The take-up roller assembly 100 also includes a take-up roller rotation drive module 6, which is disposed on the take-up roller moving part 4 and is used to drive the first take-up roller 1 and the second take-up roller 2 to rotate.
[0106] By setting up a take-up roller rotation drive module 6, which can drive both the first take-up roller 1 and the second take-up roller 2 to rotate, the automatic winding of the material strip can be achieved, resulting in a higher degree of automation. Furthermore, since both the first take-up roller 1 and the second take-up roller 2 can be driven by the same take-up roller rotation drive module 6, there is no need to set up separate take-up roller rotation drive modules 6 for each roller. Therefore, the number of take-up roller rotation drive modules 6 can be reduced, thereby lowering the cost of the take-up roller assembly 100.
[0107] There are multiple ways to implement the aforementioned take-up roller rotation drive module 6. In one possible implementation, see [link to relevant documentation]. Figure 2 The take-up roller rotation drive module 6 includes a take-up roller rotation drive component 61 and a pulley structure 62. The take-up roller rotation drive component 61 is disposed on the take-up roller moving component 4, and the pulley structure 62 is connected to the first take-up roller 1 and the second take-up roller 2 respectively. The take-up roller rotation drive component 61 is used to synchronously drive the first take-up roller 1 and the second take-up roller 2 to rotate through the pulley structure 62.
[0108] Since the pulley structure 62 is connected to the first take-up roller 1 and the second take-up roller 2 respectively, when the take-up roller rotation drive 61 drives either the first take-up roller 1 or the second take-up roller 2 to start rotating, the pulley structure 62 can synchronously transmit the rotation action to the other. That is, under the action of the pulley structure 62, the same take-up roller rotation drive 61 can synchronously drive the first take-up roller 1 and the second take-up roller 2 to rotate, without the need to set up independent take-up roller rotation drive components for the first take-up roller 1 and the second take-up roller 2 respectively. This can reduce the number of take-up roller rotation drive components and reduce the cost of the take-up roller assembly 100.
[0109] The aforementioned take-up roller rotation drive 61 can be a motor or any other component capable of driving the first take-up roller 1 and the second take-up roller 2 to rotate; this embodiment does not limit this.
[0110] In some embodiments, see Figure 2 The pulley structure 62 includes a drive pulley 621, a driven pulley 622, and a belt 623. The drive pulley 621 is sleeved on the first take-up roller 1, and the take-up roller rotation drive 61 is used to drive the drive pulley 621 to rotate. The driven pulley 622 is sleeved on the second take-up roller 2, and the belt 623 is sleeved on the drive pulley 621 and the driven pulley 622.
[0111] Since the drive wheel 621 is sleeved on the first take-up roller 1, the driven wheel 622 is sleeved on the second take-up roller 2, and the belt 623 is sleeved on the drive wheel 621 and the driven wheel 622, when the take-up roller rotation drive 61 drives the drive wheel 621 to rotate, the rotation action of the drive wheel 621 can be transmitted to the driven wheel 622 through the belt 623, thereby achieving the purpose of synchronously driving the first take-up roller 1 and the second take-up roller 2 to rotate.
[0112] Since the driving pulley 621, driven pulley 622 and belt 623 are all relatively inexpensive, the cost of pulley structure 62 can be reduced.
[0113] In some embodiments, the driving pulley 621 and the driven pulley 622 can both be synchronous pulleys, and the belt 623 can be a synchronous belt. In this way, the possibility of the belt 623 slipping on the driving pulley 621 and the driven pulley 622 can be avoided or reduced, thereby enabling the pulley structure 62 to transmit the power of the driving pulley 621 to the driven pulley 622 more stably.
[0114] In some embodiments, see Figure 1 and Figure 3 The take-up roller assembly 100 also includes a lead screw 7, which runs along the axial direction of the first take-up roller 1. Figure 3Extending along the X-axis, the take-up roller moving drive 5 is used to drive the lead screw 7 to rotate. The take-up roller moving drive 4 is movably disposed on the take-up roller support 3 along the axial direction of the first take-up roller 1, and the lead screw 7 passes through the take-up roller moving drive 4 and is threadedly connected to the take-up roller moving drive 4.
[0115] Since the lead screw 7 passes through the take-up roller moving part 4 and is threadedly connected to the take-up roller moving part 4, and since the take-up roller moving part 4 is movably disposed on the take-up roller support 3 along the axial direction of the first take-up roller 1, when the take-up roller moving drive part 5 drives the lead screw 7 to rotate, the take-up roller moving part 4 can move along the axial direction of the first take-up roller 1.
[0116] As can be seen, the take-up roller moving drive 5 can drive the take-up roller moving component 4 to move along the axial direction of the first take-up roller 1 by rotating the lead screw 7. In this process, the rotation of the take-up roller moving drive 5 can be converted into the movement of the take-up roller moving component 4. In this way, when selecting the take-up roller moving drive 5, a rotary motor with output rotation and lower price can be selected, instead of a linear motor with output linear motion and higher price. This can reduce the cost of the take-up roller assembly 100.
[0117] See Figure 4 An embodiment of this application also provides an automatic roll changing device 200, including a first unwinding shaft 201, a second unwinding shaft 202, a take-up roller assembly 100, and a tape-connecting mechanism 203. The first unwinding shaft 201 is used to load a first roll of material, and the first roll of material is used to unwind a first tape L1. The second unwinding shaft 202 is used to load a second roll of material, and the second unwinding shaft 202 is used to unwind a second tape L2. The first take-up roller 1 is used to take up the first tape L1, and the second take-up roller 2 is used to take up the second tape L2. The tape-connecting mechanism 203 is located on the conveying path of the first tape L1 and the second tape L2 and is located upstream of the take-up roller assembly 100. It is used to attach the tail end of the first tape L1 to the starting end of the second tape L2.
[0118] Since the take-up roller assembly 100 can drive the first material strip L1 or the second material strip L2 to move along the axial direction of the first take-up roller 1, the first material strip L1 and the second material strip L2 can be aligned along the width direction of the material strip. Therefore, when the automatic winding device 200 is applied to the winding equipment 300 and the winding equipment 300 is used to process battery cells, the quality of the battery cells can be better.
[0119] In addition, by setting a first unwinding shaft 201 and a second unwinding shaft 202, when the first strip L1 on the first unwinding shaft 201 is unwound, the tail end of the first strip L1 and the starting end of the second strip L2 can be automatically attached together to achieve automatic strip splicing. The whole process does not require stopping the machine. Therefore, when the automatic roll changing device 200 is applied in the winding equipment 300, the winding equipment 300 can process continuously without stopping the machine, which can improve the efficiency of the winding equipment 300 in processing battery cells.
[0120] In some embodiments, see Figure 4 The automatic roll changing device 200 also includes a detection module 204, which includes a first detection component 2041 and a second detection component 2042. The first detection component 2041 is used to detect the offset of the first strip L1 along the axial direction of the first take-up roller 1, and the second detection component 2042 is used to detect the offset of the second strip L2 along the axial direction of the second take-up roller 2.
[0121] By setting the first detection component 2041, the offset of the first material strip L1 along the axial direction of the first take-up roller 1 can be automatically detected, making the automatic roll changing device 200 more intelligent and more automated.
[0122] Similarly, by setting the second detection component 2042, the offset of the second strip L2 along the axis of the second take-up roller 2 can be automatically detected, making the automatic roll changing device 200 more intelligent and more automated.
[0123] Figure 6 yes Figure 4 A schematic diagram of the structure of the first detection component 2041 from another perspective. In some embodiments, see [reference needed]. Figure 4 and Figure 6 The first detection component 2041 includes a sensor mounting base 2041a, a first sensor 2041b, and a second sensor 2041c. The second sensor 2041c and the first sensor 2041b are spaced apart and opposite to each other, forming a detection slot 2041d through which the first material belt L1 passes. The sensor mounting base 2041a is provided with an air blowing hole 2041e, which is used to blow air towards the detection end of the first sensor 2041b and / or the detection end of the second sensor 2041c.
[0124] By providing an air blowing hole 2041e on the sensor mounting base 2041a, and blowing air through the air blowing hole 2041e toward the detection end of the first sensor 2041b and / or the detection end of the second sensor 2041c, dust on the detection end of the first sensor 2041b and / or the detection end of the second sensor 2041c can be blown away in a timely manner, thereby improving the detection accuracy of the first detection component 2041.
[0125] The structure of the second detection component 2042 can be the same as or similar to that of the first detection component 2041. For details, please refer to the description of the first detection component 2041 in the above embodiments. This embodiment will not repeat the description here.
[0126] Furthermore, in some embodiments, the sensor mounting base 2041a is provided with a material passage 2041f for the first material belt L1 to pass through, the first sensor 2041b is located on one side of the material passage 2041f, and the second sensor 2041c is located on the other side of the material passage 2041f.
[0127] By providing a material passage slit 2041f on the sensor mounting base 2041a for the first material strip L1 to pass through, the sensor mounting base 2041a can limit the first material strip L1 within the material passage slit 2041f. In other words, the sensor mounting base 2041a can limit the first material strip L1, thereby reducing the possibility of the first material strip L1 swaying significantly to a certain extent.
[0128] Figure 7 This is a schematic diagram of the structure of a winding device 300 according to an embodiment of this application. See also... Figure 7 The winding equipment 300 includes an automatic winding device 200 and a winding needle 301.
[0129] The structure of the automatic roll changing device 200 can be the same as that of any of the automatic roll changing devices 200 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.
[0130] In this embodiment, since the automatic winding device 200 can automatically connect the tape, the efficiency of the winding device 300 in processing battery cells can be improved when the winding device 300 includes the automatic winding device 200.
[0131] Furthermore, the automatic winding device 200 allows the first strip L1 and the second strip L2 to be aligned along the width direction of the strips. Therefore, when this automatic winding device 200 is applied to the winding equipment 300, and the winding equipment 300 is used to process battery cells, the quality of the battery cells can be improved.
[0132] The above-mentioned winding equipment 300 for processing battery cells is only one possible application scenario given in this embodiment. Of course, the winding equipment 300 can also process other possible products, and this embodiment does not limit this.
[0133] By setting up the winding needle 301, when the winding needle 301 rotates, it can wind the material strip around itself, thereby achieving the purpose of processing products, such as battery cells.
[0134] See Figure 7The working principle of the winding device 300 is roughly as follows: First, the winding needle 301 can wind the first material strip L1 unwound from the first unwinding shaft 201. At the same time, the second unwinding shaft 202 can unwind the second material strip L2 and wind it onto the second take-up roller 2.
[0135] When the first strip L1 is almost finished winding, in order to ensure that the winding needle 301 can continue winding, the second strip L2 needs to be bonded to the first strip L1 through the strip receiving mechanism 203, so that the second unwinding shaft 202 can take over from the first unwinding shaft 201 to unwind the second strip L2 to the winding needle 301, thereby ensuring that the winding needle 301 can continue winding.
[0136] To ensure a high degree of alignment between the second strip L2 and the first strip L1 along the axial direction of the first take-up roller 1 after the second strip L2 is bonded to the first strip L1, the offset of the second strip L2 along the axial direction of the second take-up roller 2 can be detected by the second detection component 2042 before the second strip L2 is bonded to the first strip L1.
[0137] When the second detection component 2042 detects that the alignment between the second strip L2 and the first strip L1 along the axial direction of the first take-up roller 1 is low, and misalignment may occur after bonding, the second unwinding shaft 202 and the second take-up roller 2 can move along the axial direction of the first take-up roller 1, thereby moving the second strip L2 along the axial direction of the first take-up roller 1 to adjust the alignment between the second strip L2 and the first strip L1 along the axial direction of the first take-up roller 1. When the alignment between the second strip L2 and the first strip L1 along the axial direction of the first take-up roller 1 is adjusted to a reasonable range, the second strip L2 can be bonded to the first strip L1 by the strip splicing mechanism 203. In this case, the alignment between the second strip L2 and the first strip L1 can be higher, thereby improving the quality of the battery cells processed by the winding equipment 300.
[0138] 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. An automatic roll changing device (200), characterized in that, include: An unwinding assembly (400) is used to unwind the first strip (L1) and the second strip (L2); A take-up roller assembly (100) includes a first take-up roller (1), which is rotatably disposed and movable along the axial direction of the first take-up roller (1), and is used to take up the first strip (L1) and / or the second strip (L2). A tape-attaching mechanism (203) is located on the conveying path of the first tape (L1) and the second tape (L2) and between the take-up roller assembly (100) and the unwinding assembly (400), for attaching the first tape (L1) to the second tape (L2).
2. The automatic roll changing device (200) according to claim 1, characterized in that, The receiving roller assembly (100) further includes: The second take-up roller (2) is rotatably arranged and is used to wind up the second strip (L2). The first take-up roller (1) is used to wind up the first strip (L1).
3. The automatic roll changing device (200) according to claim 2, characterized in that, The receiving roller assembly (100) further includes: Take-up roller support (3); A take-up roller moving part (4), wherein both the first take-up roller (1) and the second take-up roller (2) are rotatably mounted on the take-up roller moving part (4); and, A take-up roller moving drive (5) is provided on the take-up roller support (3) and is used to drive the take-up roller moving part (4) to move along the axial direction of the first take-up roller (1).
4. The automatic roll changing device (200) according to claim 3, characterized in that, The receiving roller assembly (100) further includes: The receiving roller rotation drive module (6) is disposed on the receiving roller moving part (4) and is used to drive the first receiving roller (1) and the second receiving roller (2) to rotate.
5. The automatic roll changing device (200) according to claim 4, characterized in that, The receiving roller rotation drive module (6) includes: A take-up roller rotation drive (61), the take-up roller rotation drive (61) being disposed on the take-up roller moving member (4); and, A pulley structure (62) is connected to the first take-up roller (1) and the second take-up roller (2) respectively. The take-up roller rotation drive (61) is used to drive the first take-up roller (1) and the second take-up roller (2) to rotate via the pulley structure (62).
6. The automatic roll changing device (200) according to claim 5, characterized in that, The pulley structure (62) includes: A drive wheel (621) is sleeved on the first take-up roller (1), and the take-up roller rotation drive (61) is used to drive the drive wheel (621) to rotate. Driven wheel (622), said driven wheel (622) being sleeved on the second take-up roller (2); and, A belt (623) is fitted onto the drive pulley (621) and the driven pulley (622).
7. The automatic roll changing device (200) according to any one of claims 3-6, characterized in that, The receiving roller assembly (100) further includes: A lead screw (7) extends along the axial direction of the first take-up roller (1), and the take-up roller moving drive (5) is used to drive the lead screw (7) to rotate; The receiving roller moving part (4) is movably disposed on the receiving roller support (3) along the axial direction of the first receiving roller (1), and the lead screw (7) passes through the receiving roller moving part (4) and is threadedly connected to the receiving roller moving part (4).
8. The automatic roll changing device (200) according to any one of claims 2-6, characterized in that, The automatic roll changing device (200) also includes: The detection module (204) includes a first detection component (2041), which is used to detect the offset of the first material strip (L1) along the axial direction of the first take-up roller (1). And / or, The detection module (204) further includes a second detection component (2042), which is used to detect the offset of the second strip (L2) along the axial direction of the second take-up roller (2).
9. The automatic roll changing device (200) according to claim 8, characterized in that, The first detection component (2041) includes: Sensor mounting bracket (2041a); First sensor (2041b); and, The second sensor (2041c) is arranged at an interval opposite to the first sensor (2041b) to form a detection slit (2041d) through which the first material belt (L1) passes; The sensor mounting base (2041a) is provided with an air blowing hole (2041e), which is used to blow air toward the detection end of the first sensor (2041b) and / or the detection end of the second sensor (2041c).
10. The automatic roll changing device (200) according to claim 9, characterized in that, The sensor mounting base (2041a) is provided with a material passage slit (2041f) through which the first material belt (L1) passes. The first sensor (2041b) is located on one side of the material passage slit (2041f), and the second sensor (2041c) is located on the other side of the material passage slit (2041f).
11. The automatic roll changing device (200) according to any one of claims 3-6, characterized in that, The unwinding assembly (400) includes a first unwinding shaft (201) and a second unwinding shaft (202). The first take-up roller (1) corresponds to the first unwinding shaft (201) and is used to take up the first strip (L1) unwinded by the first unwinding shaft (201). The second take-up roller (2) corresponds to the second unwinding shaft (202) and is used to take up the second strip (L2) unwinded by the second unwinding shaft (202).
12. A winding device (300), characterized in that, Includes the automatic roll changing device (200) according to any one of claims 1-11.