Pole piece feeding mechanism and lamination stacking machine

Abstract

The embodiment of the utility model provides a pole piece feeding mechanism and a lamination machine, and relates to the field of lithium ion batteries. The pole piece feeding mechanism comprises a plate clamping piece and a rolling piece, wherein the clamping plate piece comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are used for clamping a pole piece and conveying the pole piece towards the rolling piece, protruding parts are formed at the ends, close to the rolling piece, of the first clamping plate and the second clamping plate, the protruding parts extend towards the rolling piece, concave parts are formed in the rolling piece, and the protruding parts are matched with the concave parts. In the operation process of the pole piece feeding mechanism, the supporting effect on the pole pieces can be improved through the protruding parts, the concave parts are arranged to be matched with the protruding parts, the pole pieces can be driven to be close to a rolling piece as much as possible, then the pole pieces are prevented from drooping under the gravity effect, the probability that the pole pieces wrinkle and collide is reduced, and therefore the yield of lamination operation is improved. The lamination machine comprises the pole piece feeding mechanism and has all functions of the pole piece feeding mechanism.

Description

Technical Field

[0001] The utility model relates to the field of lithium-ion batteries, and in particular to a pole piece feeding mechanism and a pole piece stacking machine. Background Art

[0002] During the transmission of the pole pieces of the stacking machine, due to the structural limitations of the existing clamping plates, there is a certain distance between the pole pieces and the rolling parts after they extend out of the clamping plates, which makes the pole pieces prone to drooping under the influence of gravity, and thus easily causes the pole pieces to wrinkle or collide, thereby reducing the yield rate of the stacking operation. Utility Model Content

[0003] The utility model provides a pole piece feeding mechanism and a laminating machine, which can prevent the pole pieces from sagging under the influence of gravity, reduce the probability of pole piece wrinkling and collision, and thus improve the yield rate of laminating operation.

[0004] The embodiment of the present utility model can be implemented as follows:

[0005] The embodiment of the present utility model provides a pole piece feeding mechanism, which includes:

[0006] Clamped and rolled parts;

[0007] In which, the clamping plate includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are used to clamp the pole piece and convey the pole piece toward the rolling piece, the first clamping plate and the second clamping plate are both formed with a protrusion at one end close to the rolling piece, the protrusion extends toward the rolling piece, and a recessed portion is formed on the rolling piece, and the protrusion cooperates with the recessed portion.

[0008] Optionally, the number of the protrusions on the first splint is two, and the two protrusions are arranged at intervals;

[0009] The number of the protrusions on the second clamping plate is two, and the two protrusions are arranged at intervals.

[0010] Optionally, two protrusions are formed on the ends of the first splint near both sides respectively;

[0011] Two protrusions are respectively formed on the ends of the second clamping plate near both sides.

[0012] Optionally, the number of the protrusions on the first splint is at least three, and the at least three protrusions are arranged at equal intervals;

[0013] The number of the protrusions on the second splint is at least three, and the at least three protrusions are arranged at equal intervals.

[0014] Optionally, the pole piece feeding mechanism further includes a clamping drive member, and the clamping drive member is used to drive the first clamping plate and the second clamping plate to approach each other to clamp the pole piece.

[0015] Optionally, the pole piece feeding mechanism further includes a transmission driving member, and the transmission driving member is used to drive the first clamping plate and the second clamping plate to move toward the direction close to the rolling member.

[0016] Optionally, the pole piece feeding mechanism further includes a guide rail, and the guide rail is in sliding engagement with at least one of the first clamping plate and the second clamping plate.

[0017] Optionally, the rolling member includes a feed roller and a pressure roller, the feed roller and the pressure roller are used to clamp and transport the pole piece, and the recessed portion is formed on both the feed roller and the pressure roller.

[0018] Optionally, the pole piece feeding mechanism further includes a rotating driving member, and the feeding roller is transmission-connected to the rotating driving member.

[0019] An embodiment of the present utility model further provides a lamination machine, comprising a pole piece feeding mechanism.

[0020] The beneficial effects of the electrode feeding mechanism and the laminating machine of the embodiment of the present invention include, for example:

[0021] The electrode feeding mechanism includes a clamping plate and a roller. The clamping plate includes a first clamping plate and a second clamping plate, which are used to clamp the electrode and convey the electrode toward the roller. The first clamping plate and the second clamping plate each have a raised portion formed on one end near the roller, the raised portion extending toward the roller, and a recessed portion formed on the roller, with the raised portion cooperating with the recessed portion. During operation, the electrode feeding mechanism can improve the support effect on the electrode through the raised portion, and the recessed portion cooperates with the raised portion to drive the electrode as close to the roller as possible, thereby preventing the electrode from sagging under the influence of gravity, reducing the chance of electrode wrinkling and collision, and thus improving the yield rate of the lamination operation.

[0022] The laminating machine includes a pole piece feeding mechanism, which has all the functions of a pole piece feeding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1This is a schematic diagram of the working of the electrode feeding mechanism provided in an embodiment of the present utility model from a first viewing angle;

[0025] Figure 2 This is a schematic diagram of the working of the electrode feeding mechanism provided in an embodiment of the present utility model at a second viewing angle.

[0026] Icons: 100-pole feeding mechanism; 110-clamping member; 111-first clamping plate; 112-second clamping plate; 113-raised portion; 120-rolling member; 121-feeding roller; 122-pressing roller; 123-recessed portion; 130-clamping drive member; 140-transmission drive member; 150-guide rail; 160-rotational drive member; 190-pole piece. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0032] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0033] Unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0034] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0035] Please refer to Figure 1 and Figure 2 The electrode feeding mechanism 100 and the laminating machine provided in the embodiment of the present invention can solve the above problems, which will be described in detail below.

[0036] The electrode feeding mechanism 100 includes a clamping plate 110 and a rolling plate 120; wherein the clamping plate 110 includes a first clamping plate 111 and a second clamping plate 112, the first clamping plate 111 and the second clamping plate 112 are used to clamp the electrode 190 and convey the electrode 190 toward the rolling plate 120, and the first clamping plate 111 and the second clamping plate 112 are both formed with a protrusion 113 at one end close to the rolling plate 120, and the protrusion 113 extends toward the rolling plate 120, and a recessed portion 123 is formed on the rolling plate 120, and the protrusion 113 cooperates with the recessed portion 123.

[0037] During operation, the electrode feeding mechanism 100 can improve the support effect on the electrode 190 through the protrusion 113, and set the recessed portion 123 to cooperate with the protrusion 113, which can drive the electrode 190 as close to the rolling part 120 as possible, thereby preventing the electrode 190 from sagging under the influence of gravity, reducing the probability of wrinkling and collision of the electrode 190, and thus improving the yield rate of the stacking operation.

[0038] In this embodiment, the raised portion 113 is rectangular, and the projection shape of the recessed portion 123 is also rectangular; of course, in other embodiments of the present invention, the raised portion 113 can also be other shapes such as triangle, fan, semicircle, etc., and the projection shape of the recessed portion 123 is adapted to the shape of the raised portion 113, and there is no limitation on the specific setting shape of the raised portion 113.

[0039] Furthermore, there are two protrusions 113 on the first clamping plate 111, which are spaced apart. There are also two protrusions 113 on the second clamping plate 112, which are spaced apart. Furthermore, two protrusions 113 are formed near the ends of the first clamping plate 111, and two protrusions 113 are formed near the ends of the first clamping plate 111, respectively.

[0040] In the above solution, the two protrusions 113 on both sides of the end are used to support both sides of the pole piece 190 respectively, and the middle position of the pole piece 190 will not easily wrinkle or sag under the premise of being supported on both sides.

[0041] Of course, the number of protrusions 113 on the first clamping plate 111 and the second clamping plate 112 can also be at least three, and the at least three protrusions 113 located on the same clamping plate are arranged at equal intervals. By equidistantly arranging the protrusions 113, the support force for the pole piece 190 can be distributed relatively evenly in the width direction of the pole piece 190, thereby avoiding wrinkles or sagging in local positions of the pole piece 190.

[0042] It should be noted that in other embodiments of the present invention, the number of pole pieces 190 located on the same clamping plate may be three, four, six, etc., and the specific number of the protrusions 113 is not limited.

[0043] refer to Figure 2 In order to facilitate the clamping of pole pieces 190 of different thicknesses, or to clamp and press the pole pieces 190 into different thicknesses, the pole piece feeding mechanism 100 may further include a clamping drive 130, which is used to drive the first clamping plate 111 and the second clamping plate 112 to approach each other to clamp the pole piece 190.

[0044] When the pole piece 190 is not clamped, the clamping drive 130 can drive the first clamping plate 111 and the second clamping plate 112 away from each other; when the pole piece 190 enters between the two clamps, the clamping drive 130 can drive the first clamping plate 111 and the second clamping plate 112 closer to each other to clamp the pole piece 190.

[0045] It is worth noting that in the specific process, the clamping drive 130 can simultaneously drive the first clamp 111 and the second clamp 112 to move, or the clamping drive 130 can only drive one of the clamps to move closer to or away from the other clamp. There is no limitation on the specific driving method.

[0046] Furthermore, the clamping drive member 130 may specifically be a clamping cylinder, a clamping electric cylinder or a clamping hydraulic cylinder, and its specific power form is not limited.

[0047] refer to Figure 2 The electrode feeding mechanism 100 further includes a transmission driving member 140 , which is used to drive the first clamping plate 111 and the second clamping plate 112 to move toward the direction close to the rolling member 120 .

[0048] When the transmission drive member 140 is not working, the first clamping plate 111 and the second clamping plate 112 and the pole piece 190 clamped by the two can be spaced a certain distance away from the rolling member 120; when the transmission drive member 140 is working, it can drive the first clamping plate 111 and the second clamping plate 112 and the pole piece 190 clamped by the two to move toward the rolling member 120, so as to minimize the length of the pole piece 190 protruding from the first clamping plate 111 and the second clamping plate 112, thereby reducing the chance of the pole piece 190 sagging and wrinkling.

[0049] Furthermore, the transmission driving member 140 may specifically be a transmission cylinder, a transmission electric cylinder or a transmission hydraulic cylinder, and its specific power form is not limited.

[0050] refer to Figure 2 In order to ensure the width position accuracy of the first clamping plate 111 and the second clamping plate 112 during the movement close to the rolling member 120, the pole piece feeding mechanism 100 may also include a guide rail 150, which is slidably matched with at least one of the first clamping plate 111 and the second clamping plate 112.

[0051] That is, the guide rail 150 can cooperate only with the first clamping plate 111, only with the second clamping plate 112, or with both the first clamping plate 111 and the second clamping plate 112 at the same time, so as to maximize the width position accuracy of the two clamping plates during the movement toward the rolling member 120, thereby avoiding relative misalignment between the protrusion 113 and the recessed portion 123.

[0052] refer to Figure 1 and Figure 2The roller pressing member 120 includes a feed roller 121 and a pressure roller 122. The feed roller 121 and the pressure roller 122 are used to clamp and transport the electrode 190. A recessed portion 123 is formed on each of the feed roller 121 and the pressure roller 122. During operation, when the electrode 190 approaches the feed roller 121 and contacts the feed roller 121, it can continue to move. The pressure roller 122 is used to squeeze the electrode 190 during the continuous movement of the electrode 190.

[0053] Similarly, the number and projection shape of the recessed portions 123 are adapted to those of the raised portions 113 .

[0054] In this embodiment, there are two recessed portions 123, and the two recessed portions 123 are respectively located on both sides of the pole piece 190, and the projection shape of the recessed portions 123 is a rectangle; of course, in other embodiments of the present invention, the number of recessed portions 123 can also be other numbers, their setting positions can also be other positions, and their projection shapes can also be other shapes such as triangles, sectors, semicircles, etc. There is no limitation on the specific number, setting positions and projection shapes of the recessed portions 123.

[0055] It should be noted that the feed roller 121 can be an active roller, and the pressure roller 122 can be a driven roller. The feed roller 121 drives the pole piece 190 to move, and the pole piece 190 can also drive the pressure roller 122 to move while moving.

[0056] Furthermore, the electrode feeding mechanism 100 may further include a rotary drive member 160, to which the feed roller 121 is connected in a transmission manner. The rotary drive member 160 is used to provide a power source to drive the feed roller 121 to rotate. The transmission drive member 140 may be a transmission cylinder, a transmission electric cylinder, or a transmission hydraulic cylinder, and its specific power form is not limited.

[0057] An embodiment of the present invention also provides a laminating machine, including the above-mentioned electrode feeding mechanism 100, and also including an electrode supply mechanism, which is used to transfer the electrode 190 between the first clamping plate 111 and the second clamping plate 112, so that the electrode 190 is clamped by the first clamping plate 111 and the second clamping plate 112 and transferred to between the pressure roller 122 and the feeding roller 121 for rolling and transmission.

[0058] In summary, the electrode feeding mechanism 100 and the laminating machine provided by the embodiments of the present invention have at least the following advantages:

[0059] (1) The protrusion 113 can improve the supporting effect on the electrode 190, and can drive the electrode 190 as close to the rolling member 120 as possible, thereby preventing the electrode 190 from sagging under the influence of gravity, reducing the probability of wrinkling and collision of the electrode 190, and thus improving the yield rate of the stacking operation.

[0060] (2) It can make the first clamping plate 111 and the second clamping plate 112 move toward the direction close to the rolling member 120, and make the recessed portion 123 cooperate with the raised portion 113, so that the transmission of the pole piece 190 between the clamping plate 110 and the rolling member 120 is more stable, and the transmission accuracy in the width direction of the pole piece 190 can be improved.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A pole piece feeding mechanism, characterized in that: include: A clamping member (110) and a rolling member (120); The clamping plate (110) includes a first clamping plate (111) and a second clamping plate (112), the first clamping plate (111) and the second clamping plate (112) are used to clamp the pole piece (190) and convey the pole piece (190) toward the rolling member (120), and a protrusion (113) is formed at one end of the first clamping plate (111) and the second clamping plate (112) close to the rolling member (120), and the protrusion (113) extends toward the rolling member (120), and a recessed portion (123) is formed on the rolling member (120), and the protrusion (113) cooperates with the recessed portion (123).

2. The electrode feeding mechanism according to claim 1, characterized in that: The number of the protrusions (113) on the first clamping plate (111) is two, and the two protrusions (113) are arranged at intervals; The number of the protrusions (113) on the second clamping plate (112) is two, and the two protrusions (113) are arranged at intervals.

3. The electrode feeding mechanism according to claim 2, characterized in that: Two protrusions (113) are respectively formed at positions near both sides of the end of the first clamping plate (111); Two protrusions (113) are respectively formed at positions near both sides of the end of the second clamping plate (112).

4. The electrode feeding mechanism according to claim 1, characterized in that: The number of the protrusions (113) on the first clamping plate (111) is at least three, and the at least three protrusions (113) are arranged at equal intervals; The number of the protrusions (113) on the second clamping plate (112) is at least three, and the at least three protrusions (113) are arranged at equal intervals.

5. The electrode feeding mechanism according to any one of claims 1 to 4, characterized in that: The pole piece feeding mechanism further comprises a clamping drive member (130), and the clamping drive member (130) is used to drive the first clamping plate (111) and the second clamping plate (112) to approach each other to clamp the pole piece (190).

6. The electrode feeding mechanism according to any one of claims 1 to 4, characterized in that: The electrode feeding mechanism further includes a transmission drive member (140), and the transmission drive member (140) is used to drive the first clamping plate (111) and the second clamping plate (112) to move in a direction close to the rolling member (120).

7. The electrode feeding mechanism according to any one of claims 1 to 4, characterized in that: The electrode feeding mechanism further comprises a guide rail (150), wherein the guide rail (150) is in sliding engagement with at least one of the first clamping plate (111) and the second clamping plate (112).

8. The electrode feeding mechanism according to any one of claims 1 to 4, characterized in that: The rolling member (120) includes a feed roller (121) and a pressure roller (122), wherein the feed roller (121) and the pressure roller (122) are used to clamp and transport the pole piece (190), and the recessed portion (123) is formed on both the feed roller (121) and the pressure roller (122).

9. The electrode feeding mechanism according to claim 8, characterized in that: The pole piece feeding mechanism further comprises a rotary driving member (160), and the feeding roller (121) is transmission-connected to the rotary driving member (160).

10. A laminating machine, characterized in that: It includes the electrode feeding mechanism described in any one of claims 1 to 9.

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