Buffer mechanism for active feeding

Abstract

The utility model discloses an active feeding buffer mechanism which comprises a floating roller structure and a fixed roller structure, the fixed roller structure is provided with a rotating power piece, all fixed rollers of the fixed roller structure are in transmission connection, and one fixed roller serves as a driving roller and is in transmission connection with the rotating power piece. The fixed roller of the buffering mechanism is arranged to be of a structure with rotating power, synchronous belt conveying can be achieved along with the rear clamping roller process, synchronism of feeding and the buffering mechanism is guaranteed, it is guaranteed that the belt conveying position of a pole piece is correct, the tension of the buffering mechanism is not affected, the traction resistance of the clamping roller can be reduced, and belt conveying slipping is prevented; abnormities caused by surface friction of the pole pieces can be reduced, and the safety performance of the battery is improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium electrode sheet winding technology, specifically relating to an active feeding buffer mechanism. Background Technology

[0002] Each functional mechanism of the lithium battery electrode winding machine has a clamping roller traction and buffer mechanism. The winding electrode is pulled by the clamping roller, and the length of the electrode between functional mechanisms is compensated by the buffer mechanism. All the rollers of the buffer mechanism are driven rollers and have no active rotation function. When the clamping roller is pulled, the buffer mechanism has many rollers and a large wrap angle, which causes the belt to have great resistance and slippage. This causes the electrode to be in the wrong position, resulting in the cutting length error. This poses a great safety hazard to the performance of the battery cell and may even cause the electrode to be damaged and break. Utility Model Content

[0003] This invention provides an active feeding buffer mechanism to address the shortcomings described in the prior art.

[0004] The technical solution adopted in this utility model is as follows: an active feeding buffer mechanism, including a floating roller structure and a fixed roller structure. The fixed roller structure is equipped with a rotating power component, and the fixed rollers of the fixed roller structure are connected by transmission. One fixed roller is connected to the rotating power component as the active roller. By setting the fixed roller structure to be able to actively feed materials, and ensuring that the length of the fixed roller is the same as the length of the rear clamping roller, the synchronization of the belt feeding is guaranteed and the belt feeding position is correct. The active feeding of the fixed roller can reduce the resistance of the clamping roller traction and prevent the clamping roller from slipping and causing the electrode sheet to be in the wrong position.

[0005] As a preferred embodiment of this utility model, the fixed roller structure includes several fixed rollers, which are spaced apart in the vertical direction and located on the same vertical line. Each fixed roller includes a fixed roller mounting shaft, a bearing, a roller, and an auxiliary transmission sleeve. The roller is sleeved on the fixed roller mounting shaft, and a bearing is provided between the roller and the fixed roller mounting shaft. The roller rotates relative to the fixed roller mounting shaft under the action of the bearing. The auxiliary transmission sleeve is sleeved and fixed on the roller. The auxiliary transmission sleeve is connected to the rotating power component or the auxiliary transmission sleeve of the adjacent fixed roller. A sealing ring is embedded in the bearing to prevent dust from entering and avoid contamination that could cause the roller to jam.

[0006] In a preferred embodiment of this invention, the auxiliary transmission sleeve is provided with two transmission slots. One transmission slot serves as a power receiving slot, and the other serves as a power transmitting slot.

[0007] In a preferred embodiment of this invention, one transmission slot of the auxiliary transmission sleeve of the drive roller is connected to the drive wheel on the output shaft of the rotating power component via a belt, and the other transmission slot is connected to the auxiliary transmission sleeve of the adjacent fixed roller via a belt; adjacent auxiliary transmission sleeves are connected by belt drive. The rotating power component is a servo motor, and the drive wheel is a pulley, although gears can also be used. Gears can be installed on the corresponding auxiliary transmission sleeves, and the gears are connected by chains.

[0008] In a preferred embodiment of this invention, the floating roller structure includes a floating mounting base, floating sleeves, bearings, and a floating roller. Several floating sleeves are fixed on the floating mounting base, and each floating roller corresponds to one of the floating sleeves. The floating rollers are mounted inside the floating sleeves via bearings, and horizontally, the floating rollers are positioned between the gaps of two adjacent fixed rollers. The installation position of the floating mounting base can be adjusted to change the distance between it and the fixed roller structure, thereby altering the electrode buffering amount. A sealing ring is embedded in the bearing to prevent dust contamination from causing the floating rollers to jam.

[0009] As a preferred embodiment of this utility model, the floating roller structure and the fixed roller structure are mounted on the equipment panel, the floating mounting base plate is adjustablely mounted on the equipment panel, and each fixed roller mounting shaft is fixed on the equipment panel.

[0010] In a preferred embodiment of this invention, a plurality of floating mounting holes are provided on the device panel along the horizontal direction, and the floating mounting substrate is mounted on the device panel through the floating mounting holes. An insert block is provided on the back of the floating mounting substrate, which is inserted into the floating mounting holes. The position of the floating mounting substrate can be changed when the buffer quantity needs to be altered.

[0011] This invention sets the fixed roller of the buffer mechanism to a structure with rotational power, which can move the belt synchronously with the subsequent clamping roller process, ensuring the synchronization of feeding and buffer mechanism, ensuring the correct position of the electrode belt, not affecting the tension of the buffer mechanism, reducing the traction resistance of the clamping roller, preventing belt slippage, and reducing abnormalities caused by electrode surface friction, thereby improving battery safety performance. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0014] Figure 2This is a schematic diagram of the structure of the present invention. Figure 2 . Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example:

[0017] An active feeding buffer mechanism, such as Figure 1 and 2 As shown, it includes a floating roller structure and a fixed roller structure, which are mounted on the equipment panel 4.

[0018] The fixed roller structure 1 includes several fixed rollers 11, which are spaced apart in the vertical direction and located on the same vertical line of the equipment panel. Each fixed roller 11 includes a fixed roller mounting shaft, a bearing, a roller 113, and an auxiliary transmission sleeve 114. The roller 113 is sleeved on the fixed roller mounting shaft, which is fixed to the equipment panel 4. A bearing is provided between the roller 113 and the fixed roller mounting shaft, and the roller 113 rotates relative to the fixed roller mounting shaft under the action of the bearing. The bearing has an embedded sealing ring to prevent dust from entering and causing contamination that could lead to roller jamming. The auxiliary transmission sleeve 114 is sleeved and fixed on the roller 113 and has two transmission slots 1141. One of the two transmission slots serves as a power receiving position, and the other serves as a power transmitting position. The last auxiliary transmission sleeve may have only one transmission slot.

[0019] The auxiliary transmission sleeve 114 of the drive roller has a transmission slot 1141 that is connected to the drive wheel on the output shaft of the rotating power component 2 via a belt. The rotating power component is a servo motor, and the drive wheel is a pulley. Figure 1 Not shown in the diagram, another transmission slot is connected to the auxiliary transmission sleeve 114 of the adjacent fixed roller via a belt; adjacent auxiliary transmission sleeves 114 are connected by belt drive. The driving wheel can also be a gear; gears can be installed on the corresponding auxiliary transmission sleeves, and the gears are connected by a chain.

[0020] The rotating power component 2 is installed on the equipment panel, and the output shaft passes through the equipment panel before the drive wheel is installed, which is then connected to the auxiliary transmission belt.

[0021] The floating roller structure 3 includes a floating mounting base plate 31, a floating sleeve 32, a bearing, and a floating roller 33. The floating mounting base plate 31 is adjustablely mounted on the equipment panel 4. Specifically, the equipment panel 4 can be provided with a plurality of floating mounting holes 41 in the horizontal direction. In this embodiment, two sets of floating mounting hole groups are provided, and each set of floating mounting hole groups has a plurality of horizontally spaced floating mounting holes. The back of the floating mounting base plate is provided with an insert block, which is inserted into the floating mounting hole. When it is necessary to change the buffer amount, the position of the floating mounting base plate can be changed.

[0022] A plurality of floating sleeves 32 are fixed on the floating mounting base plate 31. A floating roller 33 corresponds one-to-one with the floating sleeve 32. The floating roller 33 is mounted inside the floating sleeve 32 via bearings, and in the horizontal direction, the floating roller is positioned between two adjacent fixed rollers. The mounting position of the floating mounting base plate can be adjusted to change the distance between it and the fixed roller structure, thereby changing the electrode buffering amount. A sealing ring is embedded in the bearing to prevent dust contamination from causing the floating roller to jam.

[0023] In this embodiment, four fixed rollers and three floating rollers are used as an example. The active roller is in the highest position, the floating roller is in the material feeding direction and is set between the gaps of the fixed rollers. The electrode sheet 5 starts to be wound on the active roller, and then wound in the order of floating roller and fixed roller. Finally, it is conveyed to the clamping roller 6 after passing through the lower end face of the fixed roller.

[0024] The fixed roller structure is designed to be able to actively feed the material, and the length of the fixed roller is the same as the length of the rear clamping roller, which ensures the synchronization of the belt and the correct belt position. The active belt feeding of the fixed roller can reduce the resistance of the clamping roller traction and prevent the clamping roller from slipping and causing the electrode sheet to be in the wrong position.

[0025] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A buffer mechanism for active feeding, comprising a floating roller structure and a fixed roller structure, characterized in that: The fixed roller structure (1) is provided with a rotating power component (2), and each fixed roller (11) of the fixed roller structure is connected to the rotating power component through transmission. One fixed roller is connected to the rotating power component as the driving roller.

2. The buffer mechanism for active feeding according to claim 1, characterized in that: The fixed roller structure (1) includes several fixed rollers (11), which are distributed at intervals in the vertical direction and are located on the same vertical line. Each fixed roller (11) includes a fixed roller mounting shaft, a bearing, a roller (113) and an auxiliary transmission sleeve (114). The roller (113) is sleeved on the fixed roller mounting shaft. A bearing is provided between the roller (113) and the fixed roller mounting shaft. The roller (113) rotates relative to the fixed roller mounting shaft under the action of the bearing. The auxiliary transmission sleeve (114) is sleeved and fixed on the roller (113). The auxiliary transmission sleeve (114) is connected to the rotating power component or the auxiliary transmission sleeve of the adjacent fixed roller.

3. The buffer mechanism for active feeding according to claim 2, characterized in that: The auxiliary transmission sleeve (114) is provided with two transmission slots (1141).

4. The buffer mechanism for active feeding according to claim 3, characterized in that: One drive slot (1141) of the auxiliary drive sleeve (114) of the drive roller is connected to the drive wheel on the output shaft of the rotating power component (2) via a belt, and the other drive slot is connected to the auxiliary drive sleeve (114) of the adjacent fixed roller via a belt; the adjacent auxiliary drive sleeves (114) are connected to each other via belt drive.

5. The buffer mechanism for active feeding according to claim 3 or 4, characterized in that: The floating roller structure (3) includes a floating mounting base plate (31), a floating sleeve (32), a bearing, and a floating roller (33). Several floating sleeves (32) are fixed on the floating mounting base plate (31). The floating roller (33) corresponds one-to-one with the floating sleeve (32). The floating roller (33) is installed in the floating sleeve (32) through the bearing. In the horizontal direction, the floating roller is located between the gaps of two adjacent fixed rollers.

6. The buffer mechanism for active feeding according to claim 5, characterized in that: The floating roller structure and the fixed roller structure are mounted on the equipment panel (4). The floating mounting base plate (31) is adjustablely mounted on the equipment panel (4). Each fixed roller mounting shaft is fixed on the equipment panel (4).

7. The buffer mechanism for active feeding according to claim 6, characterized in that: Several floating mounting holes (41) are provided in the horizontal direction on the device panel (4), and the floating mounting substrate (31) is mounted on the device panel through the floating mounting holes.

8. The buffer mechanism for active feeding according to claim 5, characterized in that: The bearing is equipped with an embedded sealing ring.

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