Feeding guide device and battery cell winding equipment

Abstract

The utility model relates to the technical field of battery processing equipment, in particular to a feeding guide device and battery cell winding equipment. A feeding guide device comprises a first feeding assembly, a second feeding assembly and a third feeding assembly, and the first feeding assembly comprises a first guide part and a first feeding roller; the second feeding assembly comprises a second guide part and a second feeding roller, the second guide part and the first guide part are opposite in the first direction to form a guide gap, and the peripheral wall of the second feeding roller and the peripheral wall of the first feeding roller are opposite in the first direction to form a feeding gap; the guiding gap and the feeding gap are arranged in the material guiding direction to jointly form a material guiding channel. According to the feeding guide device provided by the invention, the possibility that the head end of the pole piece collides with the first feeding roller or the second feeding roller can be reduced, so that the problems that the head end of the pole piece is bent or inclined and the like can be avoided or reduced.

Description

Technical Field

[0001] The present application relates to the technical field of battery processing equipment, and in particular to a feed guide device and a battery cell winding device. Background Art

[0002] The battery cell winding equipment is a device used to manufacture battery cells. Specifically, the battery cell winding equipment usually includes a reeling mechanism and a winding needle, wherein the reeling mechanism is used to reel the pole piece and the diaphragm etc. to the winding needle, and the winding needle is used to wind the pole piece and the diaphragm etc. onto itself to form a battery cell.

[0003] In order to ensure that the electrode can be accurately unwound from the unwinding mechanism to the winding needle, the battery cell winding equipment also includes a feed guide device located between the unwinding mechanism and the winding needle. The feed guide device includes a first feed roller and a second feed roller arranged opposite to each other. A feed gap is formed between the first feed roller and the second feed roller. After the electrode passes through the feed gap, it is guided to the winding needle.

[0004] However, in actual usage scenarios, when inserting the pole piece into the feed gap, the head end of the pole piece often collides with the first feed roller or the second feed roller, causing the head end of the pole piece to bend or skew. Utility Model Content

[0005] The present application discloses a feed guide device and a battery cell winding device, which can reduce the possibility of the head end of the pole piece colliding with the first feed roller or the second feed roller, thereby avoiding or reducing problems such as bending or skewing of the head end of the pole piece.

[0006] In order to achieve the above objectives, in a first aspect, the present application discloses a feed guide device, comprising:

[0007] A first feeding assembly, the first feeding assembly comprising a first guide member and a first feeding roller;

[0008] A second material feeding assembly, the second material feeding assembly comprises a second guide member and a second material feeding roller, the second guide member and the first guide member are opposite to each other along a first direction to form a guide gap, the peripheral wall of the second material feeding roller and the peripheral wall of the first material feeding roller are opposite to each other along the first direction to form a material feeding gap, the guide gap and the material feeding gap are arranged along the material guiding direction to jointly form a material guiding channel;

[0009] When the first feeding roller and the second feeding roller move away from each other along the first direction, the first guide member and the second guide member can move toward each other along the first direction, so that the feeding belt passes through the guide channel through the guide gap and the feeding gap in sequence.

[0010] Optionally, when the first feed roller and the second feed roller approach each other along the first direction to clamp the material strip between the first feed roller and the second feed roller, the first guide member and the second guide member can move away from each other along the first direction.

[0011] Optionally, the first feeding assembly further includes a fixing member, and the first feeding roller and the first guide member are both arranged on the fixing member.

[0012] Optionally, the second feeding assembly also includes a movable member, which is movably disposed on the fixed member along the first direction, and the second feeding roller and the second guide member are both disposed on the movable member, wherein the second guide member and the second feeding roller are located on both sides of the guide channel along the first direction.

[0013] Optionally:

[0014] The first feeding roller is rotatably disposed on the fixing member;

[0015] and / or,

[0016] The second feeding roller is rotatably arranged on the moving member.

[0017] Optionally, the first feed roller is rotatably disposed on the fixed member, and the first feed assembly further includes a rotary drive member, which is disposed on the fixed member and a rotary shaft of which is connected to the first feed roller.

[0018] Optionally, the second feeding assembly further comprises:

[0019] A mobile driving member, wherein the mobile driving member is disposed on the fixed member and connected to the mobile member, and the mobile driving member is used for driving the mobile member to move relative to the fixed member along the first direction.

[0020] Optionally, the second feeding assembly further comprises:

[0021] A guide member, wherein the guide member is arranged on the movable member, the guide member has a guide hole, the second guide member is arranged on the guide member and is located in the guide hole, the first guide member is located in the guide hole and the width of the guide hole along the first direction is greater than the sum of the first thickness of the first guide member and the second thickness of the second guide member, wherein the first thickness refers to the thickness of the structure of the first guide member located in the guide hole in the first direction, and the second thickness refers to the thickness of the structure of the second guide member located in the guide hole in the first direction.

[0022] Optionally:

[0023] The first feed assembly further comprises a first feed roller bracket, the first feed roller bracket is arranged on the fixing member, and the first feed roller is arranged on the first feed roller bracket;

[0024] and / or,

[0025] The second feed assembly also includes a second feed roller bracket, the second feed roller bracket is arranged on the moving part, and the second feed roller is arranged on the second feed roller bracket.

[0026] Optionally, the feed guide device further comprises:

[0027] The deflection correction component includes a mounting seat and a deflection correction drive component, the fixing component is movably arranged on the mounting seat along the width direction of the material strip, the deflection correction drive component is arranged on the mounting seat and connected to the fixing component, and the deflection correction drive component is used to drive the fixing component to move along the width direction of the material strip.

[0028] Optionally:

[0029] The first guide member includes a first straight section and a first inclined section, the first inclined section is connected to an end of the first straight section away from the feeding slit, and the distance between the first inclined section and the second guide member in the first direction gradually increases along the direction from the feeding slit to the guiding slit;

[0030] and / or,

[0031] The second guide member includes a second straight section and a second inclined section, the second inclined section is connected to an end of the second straight section away from the feeding gap, and the distance between the second inclined section and the first guide member in the first direction gradually increases along the direction from the feeding gap to the guide gap.

[0032] Optionally, the plane passing through the axis of the first feed roller and the axis of the second feed roller is the first plane, the feed gap is the gap at the position of the first plane, and when the first feed roller and the second feed roller move away from each other along the first direction, the first projection of the narrowest part of the guide gap on the first plane along the guiding direction is located within the feed gap.

[0033] In a second aspect, the present application discloses a battery cell winding device, which includes a feed guide device as described in any one of the first aspects above.

[0034] Compared with the prior art, the beneficial effects of this application are:

[0035] In the present application, since the first feed roller and the second feed roller move away from each other along the first direction, the first guide member and the second guide member can approach each other along the first direction, that is, the width change trends of the guide gap and the feed gap along the first direction are completely opposite. In this way, in order to facilitate the insertion of the head end of the material belt into the feed gap along the guiding direction, when the first feed roller and the second feed roller are moved away from each other along the first direction, so that the width of the feed gap along the first direction gradually widens, the width of the guide gap along the first direction can gradually narrow. With this arrangement, on the one hand, since the guide gap gradually narrows, the guiding effect of the guide gap on the head end of the material belt is better, and it is convenient to guide the head end of the material belt into the feed gap, thereby reducing the possibility of the head end of the material belt colliding with the first feed roller or the second feed roller. At the same time, on the other hand, since the feed gap gradually widens, the possibility of the head end of the material belt colliding with the first feed roller or the second feed roller can be further reduced, thereby further reducing the bending or skewing of the head end of the material belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a structural schematic diagram (simplified version) of a feed guide device provided by the related art;

[0038] Figure 2 yes Figure 1 A schematic diagram of the structure of the feed guide device in another state (simplified version);

[0039] Figure 3 It is a structural schematic diagram (simplified version) of a feed guide device provided in an embodiment of the present application;

[0040] Figure 4 is a structural schematic diagram of another feed guide device provided in an embodiment of the present application;

[0041] Figure 5 yes Figure 4 A schematic diagram of the structure of the feed guide device in another viewing angle;

[0042] Figure 6 yes Figure 4 A schematic diagram of the structure of the feed guide device in the embodiment of the present invention after omitting some structures;

[0043] Figure 7 yes Figure 6A position relationship diagram of the feed gap and the guide gap of the feed guide device in the negative direction of the Z axis;

[0044] Figure 8 yes Figure 6 A schematic diagram of the structure of the feed guide device in another perspective after omitting some structures;

[0045] Fig. 9 It is a structural schematic diagram of a battery cell winding device provided in an embodiment of the present application.

[0046] Description of main reference numerals

[0047] 1-first feeding assembly; 10-feeding gap; 11-fixing member; 12-first guide member; 121-first straight section; 122-first inclined section; 13-first feeding roller; 14-rotating driving member; 15-first feeding roller bracket;

[0048] 2-second feeding assembly; 20-guide gap; 21-moving member; 22-second guide member; 23-second feeding roller; 24-moving driving member; 25-guide member; 251-guide hole; 26-second feeding roller bracket; 27-first linear slide rail; 28-second linear slide rail;

[0049] 3-deviation correction component; 30-material guide channel; 31-mounting seat; 32-deviation correction drive member;

[0050] 100-feeding guide device; 200-cell winding equipment;

[0051] A-pole piece; A1-head end; F1-first direction; F2-material guiding direction; F3-second direction; O1-axis of the first material feeding roller; O2-axis of the second material feeding roller; S-first plane; T-first projection. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0054] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0055] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0057] Before explaining the technical solution of the present application, the background of the inventive concept of the present application is first explained.

[0058] As described in the background art, see Figure 1 When the material strip A is inserted into the feed gap 10 between the first feed roller 13 and the second feed roller 23 of the feed guide device 100, the head end A1 of the material strip A often collides with the first feed roller 13 or the second feed roller 23, causing the head end A1 of the material strip A to bend or skew. In order to avoid this situation, the related technology usually allows the first feed roller 13 and the second feed roller 23 to move in opposite directions before inserting the head end A1 of the material strip A into the feed gap 10, so that the width of the feed gap 10 between the first feed roller 13 and the second feed roller 23 becomes wider, and then the head end A1 of the material strip A is inserted into the feed gap 10.

[0059] After the head end A1 of the material strip A is inserted into the feed gap 10, the first feed roller 13 and the second feed roller 23 can move toward each other, so that the width of the feed gap 10 becomes narrower, see Figure 2 , until the material strip A is clamped between the first feeding roller 13 and the second feeding roller 23, thereby achieving the purpose of inserting the material strip A into the feeding gap 10.

[0060] Since the width of the feed gap 10 between the first feed roller 13 and the second feed roller 23 is widened before the head end A1 of the material strip A is inserted into the feed gap 10, theoretically, the possibility of the head end A1 colliding with the first feed roller 13 or the second feed roller 23 can be reduced to a certain extent.

[0061] However, although the above method can reduce the possibility of the head end A1 colliding with the first feed roller 13 or the second feed roller 23 to a certain extent, the inventors have found through long-term research and observation that the possibility of collision has not been reduced to an ideal state.

[0062] In view of this, see Figure 3 The inventor has also proposed a scheme of arranging a first guide member 12 and a second guide member 22 upstream of the first feed roller 13 and the second feed roller 23. Specifically, the first guide member 12 is arranged on the first feed roller 13, and the second guide member 22 is arranged on the second feed roller 23. The first guide member 12 and the second guide member 22 are arranged relative to each other to form a trumpet-shaped guide gap 20, the small end of the guide gap 20 faces the feed gap 10, and the large end of the guide gap 20 is away from the feed gap 10. The guide gap 20 is connected with the feed gap 10 to form a guide channel 30. The first guide member 12 and the first feed roller 13 are located on one side of the guide channel 30, and the second guide member 22 and the second feed roller 23 are located on the other side of the guide channel 30. In this way, under the guiding action of the trumpet-shaped guide gap 20, the head end A1 of the material strip A can be more easily inserted into the feed gap 10, thereby further reducing the possibility of the head end A1 colliding with the first feed roller 13 or the second feed roller 23.

[0063] Theoretically, when the first guide 12 and the second guide 22 are arranged upstream of the first feed roller 13 and the second feed roller 23, the first feed roller 13 and the second feed roller 23 move in opposite directions, so that the width of the feed gap 10 is wider, and the head end A1 of the material belt A can be more easily inserted into the feed gap 10, thereby better reducing the possibility of the head end A1 colliding with the first feed roller 13 or the second feed roller 23. However, since the first guide member 12 is arranged on the first feed roller 13, and the second guide member 22 is arranged on the second feed roller 23, the first guide member 12 and the first feed roller 13 are located on one side of the guide channel 30, and the second guide member 22 and the second feed roller 23 are located on the other side of the guide channel 30, therefore, when the first feed roller 13 and the second feed roller 23 move in opposite directions, the first guide member 12 and the second guide member 22 will also move in opposite directions, thereby widening the width of the guide gap 20, thereby weakening the guiding effect of the first guide member 12 and the second guide member 22 on the head end A1.

[0064] In this way, when the first feed roller 13 and the second feed roller 23 move in opposite directions, making the width of the feed gap 10 wider, it is easier for the head end A1 of the material strip A to collide with the first feed roller 13 or the second feed roller 23. After long-term research, it is found that, in general, the scheme of arranging the first guide 12 and the second guide 22 upstream of the first feed roller 13 and the second feed roller 23 can reduce the possibility of the head end A1 colliding with the first feed roller 13 or the second feed roller 23 to a certain extent, but the effect is still not ideal. Based on this, the present application provides a feed guide device 100 to further reduce the possibility of the head end A1 of the material strip A colliding with the first feed roller 13 or the second feed roller 23, so as to further reduce the bending or skewing of the head end A1 of the material strip A.

[0065] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0066] See also Figure 4 , Figure 5 and Figure 6 The feed guide device 100 includes: a first feed assembly 1 and a second feed assembly 2, wherein the first feed assembly 1 includes a first guide member 12 and a first feed roller 13, and the second feed assembly 2 includes a second guide member 22 and a second feed roller 23, and the second guide member 22 and the first guide member 12 are connected along a first direction F1 ( Figure 4 The peripheral wall of the second feeding roller 23 and the peripheral wall of the first feeding roller 13 are opposite to each other along the first direction F1 to form a feeding gap 10. The guiding gap 20 and the feeding gap 10 are opposite to each other along the guiding direction F2 ( Figure 6 The plurality of guide channels 30 are arranged in the direction of the center Z axis to form a material guiding channel 30.

[0067] When the first feeding roller 13 and the second feeding roller 23 move away from each other along the first direction F1 , the first guide member 12 and the second guide member 22 can move toward each other along the first direction F1 , so that the feeding belt A passes through the guide channel 30 via the guide gap 20 and the feeding gap in sequence.

[0068] In the present embodiment, since the peripheral wall of the second feed roller 23 and the peripheral wall of the first feed roller 13 are relatively formed along the first direction F1 to form a feed gap 10, and the second guide member 22 and the first guide member 12 are relatively formed along the first direction F1 to form a guide gap 20, and since the guide gap 20 and the feed gap 10 are arranged along the guide direction F2 to jointly form a guide channel 30, when it is necessary to insert the material strip A into the feed gap 10, the head end A1 of the material strip A can be first inserted into the guide gap 20. After the head end A1 of the material strip A is inserted into the guide gap 20, under the guiding action of the second guide member 22 and the first guide member 12, the purpose of guiding the head end A1 of the material strip A to be inserted into the feed gap 10 along the guide direction F2 can be achieved.

[0069] Among them, since the first feed roller 13 and the second feed roller 23 move away from each other along the first direction F1, the first guide member 12 and the second guide member 22 can move closer to each other along the first direction F1, that is, the width change trends of the guide gap 20 and the feed gap 10 along the first direction F1 are completely opposite. In this way, in order to facilitate the insertion of the head end A1 of the material strip A into the feed gap 10 along the guiding direction F2, when the first feed roller 13 and the second feed roller 23 are moved away from each other along the first direction F1, so that the width of the feed gap 10 along the first direction F1 gradually becomes wider, the width of the guide gap 20 along the first direction F1 can gradually become narrower. In this way, on the one hand, since the guide gap 20 gradually becomes narrower, the guide gap 20 has a better guiding effect on the head end A1 of the material strip A, and thus facilitates guiding the head end A1 of the material strip A into the feed gap 10, thereby reducing the possibility of the head end A1 of the material strip A colliding with the first feed roller 13 or the second feed roller 23. At the same time, on the other hand, since the feed gap 10 gradually becomes wider, the possibility of the head end A1 of the material strip A colliding with the first feed roller 13 or the second feed roller 23 can be further reduced, thereby further reducing the bending or skewing of the head end A1 of the material strip A.

[0070] When the feed guide device 100 is applied to the battery cell winding device 200, the above-mentioned material strip A can be understood as a pole piece. Of course, based on different application scenarios, the material strip A can also be understood in other ways, and this embodiment does not limit this.

[0071] It should be noted that the shapes of the fixing member 11 and the moving member 21 can be plate-shaped or other possible shapes, which is not limited in this embodiment.

[0072] It should also be noted that there are multiple ways to implement the first feed roller 13 and the second feed roller 23 that can move away from each other along the first direction F1. In a first possible implementation, a driving member can be provided for the first feed roller 13 to drive the first feed roller 13 to move along the first direction F1 away from the second feed roller 23. Alternatively, in a second possible implementation, a driving member can be provided for the second feed roller 23 to drive the second feed roller 23 to move along the first direction F1 away from the first feed roller 13. Alternatively, in a third possible implementation, a driving member can be provided for the second feed roller 23 to drive the second feed roller 23 to move along the first direction F1 away from the first feed roller 13, and at the same time, a driving member can be provided for the first feed roller 13 to drive the first feed roller 13 to move along the first direction F1 away from the second feed roller 23. This embodiment is not limited to this.

[0073] Similarly, the principle that the first guide member 12 and the second guide member 22 can approach each other along the first direction F1 is similar to the principle that the first feed roller 13 and the second feed roller 23 can move away from each other along the first direction F1, and this embodiment will not be repeated here.

[0074] In addition, there are also many ways to implement that the first guide member 12 and the second guide member 22 can approach each other along the first direction F1 when the first feed roller 13 and the second feed roller 23 move away from each other along the first direction F1. For example, in one possible implementation, the first guide member 12 and the second guide member 22 can be driven to approach each other along the first direction F1 by the same driving member while driving the first feed roller 13 and the second feed roller 23 away from each other along the first direction F1. That is, the driving member that drives the first feed roller 13 and the second feed roller 23 away from each other along the first direction F1 and the driving member that drives the first guide member 12 and the second guide member 22 to approach each other along the first direction F1 can be the same driving member, or, in a second possible implementation, the driving member that drives the first feed roller 13 and the second feed roller 23 away from each other along the first direction F1 and the driving member that drives the first guide member 12 and the second guide member 22 to approach each other along the first direction F1 can be different driving members, and this embodiment is not limited to this.

[0075] In some embodiments, see Figure 4 and Figure 5 When the first feed roller 13 and the second feed roller 23 approach each other along the first direction F1 to clamp the material strip A between the first feed roller 13 and the second feed roller 23, the first guide member 12 and the second guide member 22 can move away from each other along the first direction F1.

[0076] In this embodiment, after the head end A1 of the material belt A is inserted into the feed gap 10, the first feed roller 13 and the second feed roller 23 can be moved closer to each other along the first direction F1 so as to clamp the material belt A between the first feed roller 13 and the second feed roller 23. In this way, in the process of conveying the material belt A downstream, the first feed roller 13 and the second feed roller 23 can limit the material belt A, so that the material belt A can be conveyed downstream more stably.

[0077] Among them, after the head end A1 of the material strip A is inserted into the feed gap 10, when the first feed roller 13 and the second feed roller 23 approach each other along the first direction F1, the width of the feed gap 10 along the first direction F1 becomes narrower, and the material strip A is clamped between the second feed roller 23 and the first feed roller 13, so as to convey the material strip A along the guide direction F2, since the first guide member 12 and the second guide member 22 can move away from each other along the first direction F1, the guide gap 20 can be widened. When the guide gap 20 becomes wider, the possibility of the material strip A being scratched against the second guide member 22 or the first guide member 12 during the conveying process can be avoided or reduced.

[0078] In some embodiments, see Figure 4 and Figure 6 The first feeding assembly 1 also includes a fixing member 11, and the first feeding roller 13 and the first guide member 12 are both arranged on the fixing member 11.

[0079] By arranging the first feed roller 13 and the first guide member 12 on the fixing member 11, the first feed roller 13, the first guide member 12 and the fixing member 11 can form an integral structure. Compared with the method of arranging the first feed roller 13 and the first guide member 12 on different installation structures respectively, on the one hand, the integrity of the first feed component 1 can be made higher, and on the other hand, the number of parts of the first feed component 1 can be reduced, and the structure of the first feed component 1 can be simplified.

[0080] In some embodiments, see Figure 4 , Figure 5 and Figure 6 The second feeding component 2 also includes a moving member 21, which is movably disposed on the fixed member 11 along the first direction F1, and the second feeding roller 23 and the second guide member 22 are both disposed on the moving member 21, wherein the second guide member 22 and the second feeding roller 23 are located on both sides of the guide channel 30 along the first direction F1.

[0081] Since the first feed roller 13 and the first guide member 12 are both arranged on the fixed member 11, the second feed roller 23 and the second guide member 22 are both arranged on the movable member 21, and since the movable member 21 is movably arranged on the fixed member 11 along the first direction F1, when the movable member 21 moves relative to the fixed member 11 along the first direction F1, the second feed roller 23 can be synchronously driven to move relative to the first feed roller 13 along the first direction F1, so that the width of the feed gap 10 along the first direction F1 can be changed, and the purpose of adjusting the width of the feed gap 10 along the first direction F1 can be achieved. Similarly, when the movable member 21 moves relative to the fixed member 11 along the first direction F1, the second guide member 22 can be synchronously driven to move relative to the first guide member 12 along the first direction F1, so that the width of the guide gap 20 along the first direction F1 can be changed, and the purpose of adjusting the width of the guide gap 20 along the first direction F1 can be achieved.

[0082] It can be seen that by moving the movable member 21 along the first direction F1 relative to the fixed member 11, the width of the guide gap 20 along the first direction F1 and the width of the feed gap 10 along the first direction F1 can be flexibly adjusted. Therefore, the feed guide device 100 can be made more flexible and can adapt to material strips A of different thicknesses.

[0083] It is worth noting that since the second guide member 22 and the second feed roller 23 are located on both sides of the guide channel 30 along the first direction F1, the first guide member 12 and the first feed roller 13 can also be located on both sides of the guide channel 30 along the first direction F1, that is, the first guide member 12 and the first feed roller 13 are located on different sides of the guide channel 30 along the first direction F1, and the second guide member 22 and the second feed roller 23 are located on different sides of the guide channel 30 along the first direction F1. In this way, when the movable member 21 moves relative to the fixed member 11 along the first direction F1, so that the second feed roller 23 moves along the first direction F1 in a direction away from the first feed roller 13, thereby causing the feed gap 10 to gradually widen in width along the first direction F1, the second guide member 22 will move along the first direction F1 in a direction close to the first guide member 12, so that the guide gap 20 gradually narrows. Similarly, when the second feed roller 23 moves along the first direction F1 toward the first feed roller 13, causing the feed gap 10 to gradually narrow in width along the first direction F1, the second guide member 22 will move along the first direction F1 toward away from the first guide member 12, causing the guide gap 20 to gradually widen.

[0084] It can be seen that, under the premise that the second feed roller 23 and the second guide member 22 are both arranged on the movable member 21, and the first guide member 12 and the first feed roller 13 are both provided with the fixed member 11, by making the movable member 21 move relative to the fixed member 11 along the first direction F1, the guide gap 20 can be narrowed while the feed gap 10 is widened, that is, the process of widening the feed gap 10 and the process of narrowing the guide gap 20 are carried out simultaneously, and therefore, the working efficiency of the feed guide device can be improved.

[0085] In order to further reduce the possibility of the head end A1 of the pole piece A colliding with the first feeding roller 13 or the second feeding roller 23, in some embodiments, see Figure 6 and Figure 7 , the plane passing through the axis O1 of the first feeding roller 13 and the axis O2 of the second feeding roller 23 is the first plane S, the feeding gap 10 is the gap at the position of the first plane S, when the first feeding roller 13 and the second feeding roller 23 move away from each other along the first direction F1, the narrowest part of the guide gap 20 is along the guide direction F2 ( Figure 6 The first projection T of the first plane (S) (in the Z-axis direction) is located in the feeding gap 10.

[0086] Since the narrowest part of the guide gap 20 is along the material guiding direction F2 ( Figure 6 The first projection T of the first plane (S) in the Z-axis direction) is located in the feed gap 10. Therefore, the extension surface of the guide surface of the first guide member 12 (the narrowest part of the guide gap 20) along the guide direction F2 can be located in the feed gap 10, and the extension surface of the guide surface of the second guide member 22 (the narrowest part of the guide gap 20) along the guide direction F2 is also located in the feed gap 10. In this way, under the guidance of the guide surface of the first guide member 12 and the guide surface of the second guide member 22, the head end A1 of the pole piece A can be better guided into the feed gap 10, and then the possibility of the head end A1 of the pole piece A colliding with the first feed roller 13 or the second feed roller 23 can be better reduced, so that the bending or skewing of the head end A1 of the pole piece A can be better reduced.

[0087] The guide surface of the first guide member 12 refers to a surface close to the guide gap 20 and used to enclose with the second guide member 22 to form the guide gap 20 , and the guide surface of the second guide member 22 refers to a surface close to the guide gap 20 and used to enclose with the first guide member 12 to form the guide gap 20 .

[0088] In order to make the pole piece A more smoothly transferred along the material guiding direction F2 after the head end A1 of the pole piece A is inserted into the feeding gap 10 and the pole piece A is clamped by the first feeding roller 13 and the second feeding roller 23, in some embodiments, see Figure 5The first feed roller 13 is rotatably disposed on the fixed member 11 , and / or the second feed roller 23 is rotatably disposed on the movable member 21 .

[0089] By rotatably setting the first feed roller 13 on the fixed part 11, and / or rotatably setting the second feed roller 23 on the movable part 21, the friction between the first feed roller 13 and the pole piece A, and between the second feed roller 23 and the pole piece A can be rolling friction. Since rolling friction has a smaller friction force than static friction, the pole piece A can be transported more smoothly along the material guiding direction F2.

[0090] Among them, the above-mentioned first feed roller 13 can be rotatably set on the fixed part 11 through a bearing, and can also be rotatably set on the fixed part 11 through other methods. This embodiment does not limit this. Similarly, the second feed roller 23 can also be rotatably set on the fixed part 11 through bearings or other components. This embodiment does not limit this.

[0091] In some embodiments, see Figure 5 The first feed roller 13 is rotatably disposed on the fixing member 11 . The first feed assembly 1 further includes a rotary drive member 14 . The rotary drive member 14 is disposed on the fixing member 11 and a rotary shaft of the rotary drive member 14 is connected to the first feed roller 13 .

[0092] Since the first feed roller 13 is rotatably disposed on the fixed member 11, the rotary drive member 14 is disposed on the fixed member 11 and the rotary shaft of the rotary drive member 14 is connected to the first feed roller 13, when the rotary shaft of the rotary drive member 14 starts to rotate, it can synchronously drive the first feed roller 13 to rotate relative to the fixed member 11. When the first feed roller 13 rotates relative to the fixed member 11, it can drive the pole piece A to be transmitted downstream.

[0093] The above-mentioned rotating driving member 14 can be a motor or any possible driving member, which is not limited in this embodiment.

[0094] In some embodiments, see Figure 4 The second feeding assembly 2 further includes: a moving driving member 24, which is disposed on the fixing member 11 and connected to the moving member 21, and is used to drive the moving member 21 to move relative to the fixing member 11 along the first direction F1.

[0095] Since the movable driving member 24 can drive the movable member 21 to move along the first direction F1 relative to the fixed member 11, when the movable member 21 moves along the first direction F1 relative to the fixed member 11, it can automatically adjust the width of the feed gap 10 along the first direction F1 and the width of the guide gap 20 along the first direction F1, so that the feed guide device 100 has a higher degree of automation.

[0096] The movable driving member 24 may be a pneumatic cylinder or an electric cylinder, etc., and it only needs to drive the movable member 21 to move along the first direction F1 relative to the fixed member 11 . The movable driving member 24 is not limited in this embodiment.

[0097] In order to make the moving member 21 move more smoothly and with higher running accuracy relative to the fixing member 11 along the first direction F1, in some embodiments, see Figure 6 The movable member 21 is slidably disposed on the fixed member 11 through the first linear slide rail 27, and the guiding direction of the first linear slide rail 27 is the same as the first direction F1. In this way, under the guiding action of the first linear slide rail 27, the movable member 21 can move along the first direction F1 relative to the fixed member 11 more smoothly and with higher operating accuracy.

[0098] In some embodiments, see Figure 6 The above-mentioned first linear slide rail 27 may include a guide rail and a slider. The guide rail is arranged on the fixed member 11 and extends along the first direction F1. The slider is slidably arranged on the guide rail along the extension direction of the guide rail. The movable member 21 is arranged on the slider. In this way, the purpose of slidably arranging the movable member 21 on the fixed member 11 along the first direction F1 can be achieved. The implementation method is very simple and the cost of the first linear slide rail 27 can be reduced.

[0099] It should be noted that the number of the first linear guide rails 27 may be one, two, three, etc., and the present embodiment does not limit the number of the first linear guide rails 27 .

[0100] In some embodiments, see Figure 6 and Figure 7 The first guide member 12 includes a first straight section 121 and a first inclined section 122. The first inclined section 122 is connected to an end of the first straight section 121 away from the feeding gap 10 ( Figure 6 6 ), and along the direction from the feeding slit 10 to the guide slit 20 (the positive direction of the Z axis in 6 ), the spacing between the first inclined section 122 and the second guide member 22 along the first direction F1 gradually increases.

[0101] By gradually increasing the distance between the first inclined section 122 and the second guide member 22 along the first direction F1 in the direction from the feed gap 10 to the guide gap 20, the end of the guide gap 20 away from the feed gap 10 ( Figure 6 That is, the opening of the guide gap 20 at one end for the head end A1 of the electrode piece A to start inserting can be made larger. This is more conducive to inserting the head end A1 of the electrode piece A into the guide gap 20, and can avoid the situation where the head end A1 of the electrode piece A is difficult to insert into the guide gap 20.

[0102] The shapes of the first straight section 121 and the first inclined section 122 may be plate-shaped or other possible shapes, which are not limited in this embodiment.

[0103] Further, see Figure 6 and Figure 7 In order to make it more convenient to insert the head end A1 of the pole piece A into the guide gap 20, in some embodiments, the second guide member 22 includes a second straight section and a second inclined section, the second inclined section is connected to the end of the second straight section away from the feeding gap 10, and the distance between the second inclined section and the first guide member 12 along the first direction F1 gradually increases along the direction of the feeding gap 10 pointing to the guide gap 20.

[0104] The structure of the second guide member 22 may be similar to that of the first guide member 12 . For details, reference may be made to the description of the first guide member 12 in the above embodiment, which will not be described in detail in this embodiment.

[0105] By gradually increasing the distance between the second inclined section and the first guide member 12 along the first direction F1 and in the direction of the feed gap 10 pointing to the guide gap 20, the opening of the guide gap 20 at one end for the head end A1 of the pole piece A to be inserted can be further enlarged. This is more conducive to inserting the head end A1 of the pole piece A into the guide gap 20, thereby better avoiding the situation where the head end A1 of the pole piece A is difficult to insert into the guide gap 20.

[0106] In some embodiments, see Figure 6 The second feeding assembly 2 further includes: a guide member 25, the guide member 25 is arranged on the moving member 21, the guide member 25 has a guide hole 251, the second guide member 22 is arranged on the guide member 25 and is located in the guide hole 251, the first guide member 12 is located in the guide hole 251 and the guide hole 251 is along the first direction F1 ( Figure 6 The width in the Z-axis direction) is greater than the sum of the first thickness of the first guide member 12 and the second thickness of the second guide member 22, wherein the first thickness refers to the thickness of the structure of the first guide member 12 located in the guide hole 251 in the first direction F1, and the second thickness refers to the thickness of the structure of the second guide member 22 located in the guide hole 251 in the first direction F1.

[0107] Since the width of the guide hole 251 along the first direction F1 is greater than the sum of the first thickness of the first guide member 12 and the second thickness of the second guide member 22, on the one hand, the width of the guide hole 251 along the first direction F1 can allow the first guide member 12 and the second guide member 22 to move relative to each other in the guide hole 251 along the first direction F1 to adjust the width of the guide gap 20. On the other hand, the hole wall of the guide hole 251 can also limit the movement of the first guide member 12 and the second guide member 22 along the first direction F1, thereby avoiding the occurrence of excessive travel when the first guide member 12 and the second guide member 22 move in opposite directions along the first direction F1. On the other hand, the guide hole 251 can also play a certain guiding role for the head end A1 of the pole piece A during the insertion into the feed gap 10. On the third aspect, the guide member 25 can also serve as a second guide member 22 for installation thereon.

[0108] The shape of the guide hole 251 may be rectangular, track-shaped, elliptical, etc. The shape of the guide hole 251 is not limited in this embodiment.

[0109] It should be noted that the thickness of the first guide member 12 refers to the thickness of the first guide member 12 located in the guide hole 251, and does not indicate the thickness of the entire first guide member 12. The thickness of the second guide member 22 can be understood in the same way as the thickness of the first guide member 12, and this embodiment will not be repeated here.

[0110] In some embodiments, see Figure 5 and Figure 8 The first feed assembly 1 also includes a first feed roller bracket 15 , the first feed roller bracket 15 is disposed on the fixing member 11 , and the first feed roller 13 is disposed on the first feed roller bracket 15 .

[0111] By setting the first feed roller bracket 15, the first feed roller 13 can be set on the fixing part 11 through the first feed roller bracket 15. Compared with the method of directly setting the first feed roller 13 on the fixing part 11, such a setting can, on the one hand, simplify the structure of the fixing part 11, and on the other hand, when the first feed roller 13 needs to be removed from the fixing part 11, it can be achieved by simply removing the first feed roller bracket 15 from the fixing part 11, which is convenient for the later maintenance of the first feed roller 13.

[0112] The shape of the first feed roller bracket 15 may be a plate or other possible shapes. The present embodiment does not limit the shape of the first feed roller bracket 15 .

[0113] When the first feeding assembly 1 further includes a first feeding roller bracket 15, see Figure 8The first straight section 121 can be set on the fixing part 11 through the first feed roller bracket 15. Specifically, the first straight section 121 can be set on the first feed roller bracket 15, and the first feed roller bracket 15 can be set on the fixing part 11. In this way, the purpose of setting the first feed roller bracket 15 on the fixing part 11 can be achieved.

[0114] In some embodiments, see Figure 6 and Figure 8 The second feed assembly 2 also includes a second feed roller bracket 26 , the second feed roller bracket 26 is arranged on the moving member 21 , and the second feed roller 23 is arranged on the second feed roller bracket 26 .

[0115] By setting up the second feed roller bracket 26, the second feed roller 23 can be set on the movable part 21 through the second feed roller bracket 26. Compared with the method of directly setting the second feed roller 23 on the movable part 21, such a setting can, on the one hand, simplify the structure of the movable part 21. On the other hand, when the second feed roller 23 needs to be removed from the movable part 21, it can be achieved by simply removing the second feed roller bracket 26 from the movable part 21, which is convenient for the later maintenance of the second feed roller 23.

[0116] Considering that after the head end A1 of the pole piece A is inserted into the feed gap 10, Figure 4 and Figure 6 In the process of the electrode piece A being transferred downstream along the guide channel 30, there may be a second direction F3 ( Figure 4 In order to avoid the situation of deviation (in the Y-axis direction), in some embodiments, the feed guide device 100 also includes: a correction component 3, the correction component 3 includes a mounting seat 31 and a correction drive member 32, the fixed member 11 is movably arranged on the mounting seat 31 along the second direction F3, the correction drive member 32 is arranged on the mounting seat 31 and connected to the fixed member 11, the correction drive member 32 is used to drive the fixed member 11 to move along the second direction F3, and the second direction F3 is respectively perpendicular to the first direction F1 and the material guiding direction F2.

[0117] Since the fixing member 11 is movably arranged on the mounting seat 31 along the second direction F3, and the correcting drive member 32 is arranged on the mounting seat 31 and connected to the fixing member 11, when the pole piece A is deflected along the second direction F3, the correcting drive member 32 can drive the fixing member 11 to move relative to the mounting seat 31 along the second direction F3, and then the pole piece A can be moved relative to the material guide channel 30 along the second direction F3, so as to change the position of the pole piece A relative to the material guide channel 30 along the second direction F3, and then achieve the purpose of correcting the pole piece A along the second direction F3.

[0118] The fixing member 11 can be movably disposed on the mounting seat 31 along the second direction F3 by means of the second linear guide rail 28 or by other methods, which is not limited in this embodiment.

[0119] The structure of the second linear guide rail 28 may be the same as or similar to that of the first linear guide rail 27 . For details, reference may be made to the description of the first linear guide rail 27 in the above embodiment. The second linear guide rail 28 will not be described in detail in this embodiment.

[0120] It should be noted that the above-mentioned correcting driving component 32 can be any device such as a motor, a cylinder or an electric cylinder that can drive the fixing component 11 to move relative to the mounting seat 31 along the second direction F3. This embodiment does not limit the correcting driving component 32.

[0121] The present application also provides a battery cell winding device 200, see Fig. 9 The battery cell winding device 200 includes a feed guide device 100 .

[0122] Among them, the structure of the feed guide device 100 can be the same as the structure of any feed guide device 100 in the above embodiments, and can bring the same or similar beneficial effects. For details, please refer to the description of the feed guide device 100 in the above embodiments, and this embodiment will not be repeated here.

[0123] In this embodiment, since the feed guide device 100 can reduce the possibility of the head end A1 of the pole piece A colliding with the first feed roller 13 or the second feed roller 23, it can further reduce the bending or skewing of the head end A1 of the pole piece A. Based on this, when the feed guide device 100 is applied to the battery cell winding equipment 200, the quality of the battery cell prepared by the battery cell winding equipment 200 can be better.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A feed guide device (100), characterized in that: include: A first feeding assembly (1), the first feeding assembly (1) comprising a first guide member (12) and a first feeding roller (13); A second material feeding component (2), the second material feeding component (2) comprising a second guide member (22) and a second material feeding roller (23), the second guide member (22) and the first guide member (12) being relative to each other along a first direction (F1) to form a guide gap (20), the peripheral wall of the second material feeding roller (23) and the peripheral wall of the first material feeding roller (13) being relative to each other along the first direction (F1) to form a material feeding gap (10), the guide gap (20) and the material feeding gap (10) being arranged along a material guiding direction (F2) to jointly form a material guiding channel (30); When the first feeding roller (13) and the second feeding roller (23) move away from each other along the first direction (F1), the first guide member (12) and the second guide member (22) can move closer to each other along the first direction (F1), so that the feeding belt (A) passes through the guide channel (30) in sequence through the guide gap (20) and the feeding gap.

2. The feed guide device (100) according to claim 1, characterized in that: When the first feed roller (13) and the second feed roller (23) approach each other along the first direction (F1) to clamp the material strip between the first feed roller (13) and the second feed roller (23), the first guide member (12) and the second guide member (22) can move away from each other along the first direction (F1).

3. The feed guide device (100) according to claim 1, characterized in that: The first feeding assembly (1) further comprises a fixing member (11), and the first feeding roller (13) and the first guide member (12) are both arranged on the fixing member (11).

4. The feed guide device (100) according to claim 3, characterized in that: The second feed assembly (2) further comprises a movable member (21), the movable member (21) being movably arranged on the fixed member (11) along the first direction (F1), the second feed roller (23) and the second guide member (22) being both arranged on the movable member (21), wherein the second guide member (22) and the second feed roller (23) are located on both sides of the guide channel (30) along the first direction (F1).

5. The feed guide device (100) according to claim 4, characterized in that: The first feeding roller (13) is rotatably arranged on the fixing member (11); and / or, The second feeding roller (23) is rotatably arranged on the moving member (21).

6. The feed guide device (100) according to claim 5, characterized in that: The first feed roller (13) is rotatably arranged on the fixing member (11), and the first feed assembly (1) further comprises a rotary drive member (14), wherein the rotary drive member (14) is arranged on the fixing member (11) and the rotary shaft of the rotary drive member (14) is connected to the first feed roller (13).

7. The feed guide device (100) according to claim 4, characterized in that: The second feeding assembly (2) further comprises: A mobile driving member (24), wherein the mobile driving member (24) is arranged on the fixed member (11) and connected to the mobile member (21), and the mobile driving member (24) is used to drive the mobile member (21) to move relative to the fixed member (11) along the first direction (F1).

8. The feed guide device (100) according to claim 4, characterized in that: The second feeding assembly (2) further comprises: A guide member (25), wherein the guide member (25) is arranged on the movable member (21), the guide member (25) has a guide hole (251), the second guide member (22) is arranged on the guide member (25) and is located in the guide hole (251), the first guide member (12) is located in the guide hole (251) and the width of the guide hole (251) along the first direction (F1) is greater than the sum of the first thickness of the first guide member (12) and the second thickness of the second guide member (22), wherein the first thickness refers to the thickness of the structure of the first guide member (12) located in the guide hole (251) in the first direction (F1), and the second thickness refers to the thickness of the structure of the second guide member (22) located in the guide hole (251) in the first direction (F1).

9. The feed guide device (100) according to claim 4, characterized in that: The first feed assembly (1) further comprises a first feed roller bracket (15), wherein the first feed roller bracket (15) is arranged on the fixing member (11), and the first feed roller (13) is arranged on the first feed roller bracket (15); and / or, The second feed assembly (2) further comprises a second feed roller bracket (26), wherein the second feed roller bracket (26) is arranged on the moving member (21), and the second feed roller (23) is arranged on the second feed roller bracket (26).

10. The feed guide device (100) according to claim 4, characterized in that: The feed guide device (100) further comprises: A deflection correction component (3), the deflection correction component (3) comprising a mounting seat (31) and a deflection correction driving member (32), the fixing member (11) being movably arranged on the mounting seat (31) along the width direction (F3) of the material strip (A), the deflection correction driving member (32) being arranged on the mounting seat (31) and connected to the fixing member (11), the deflection correction driving member (32) being used to drive the fixing member (11) to move along the width direction (F3) of the material strip (A).

11. The feed guide device (100) according to claim 1, characterized in that: The first guide member (12) comprises a first straight section (121) and a first inclined section (122); the first inclined section (122) is connected to an end of the first straight section (121) away from the feeding slit (10), and the distance between the first inclined section (122) and the second guide member (22) in the first direction (F1) gradually increases along a direction from the feeding slit (10) to the guiding slit (20); and / or, The second guide member (22) comprises a second straight section and a second inclined section, the second inclined section being connected to an end of the second straight section away from the feed slit (10), and the distance between the second inclined section and the first guide member (12) in the first direction (F1) gradually increases along a direction from the feed slit (10) to the guide slit (20).

12. The feed guide device (100) according to any one of claims 1 to 11, characterized in that: The plane passing through the axis (O1) of the first feed roller (13) and the axis (O2) of the second feed roller (23) is a first plane (S), the feed gap (10) is a gap at the position of the first plane (S), and when the first feed roller (13) and the second feed roller (23) move away from each other along the first direction (F1), the first projection (T) of the narrowest part of the guide gap (20) along the guide direction (F2) on the first plane (S) is located within the feed gap (10).

13. A battery cell winding device (200), characterized in that: The battery cell winding device (200) comprises a feed guide device (100) according to any one of claims 1 to 12.

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