Winding device with tabletting mechanism

Abstract

The utility model discloses a winding device with a tabletting mechanism, which can be used for laminating pole pieces more closely when a diaphragm is wound in battery preparation. The sheet pressing assembly is used for pressing stacked pole sheets, the track assembly is used for limiting the sheet pressing assembly to move along a track, the winding needle assembly is located in the center of the sheet pressing assembly and provides winding power, the track assembly comprises a cylindrical track column, and four layers of annular-groove-shaped track grooves which are concaved inwards and distributed up and down are formed in the outer surface of the track column; a pressing piece in the pressing piece assembly is driven by a rotating wheel to slide along a rail groove, and the rail groove fluctuates at the position where the pressing piece needs to be pressed down. And the shape of the track groove is accurately designed, so that the pressing sheet is matched for winding and can be pressed to the winding needle timely, and the pressing sheet moves stably and is high in precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of components for making winding battery, in particular the winding device of fixed winding needle, winding diaphragm and simultaneously stacking pole piece. BACKGROUND

[0002] Winding battery as a common battery manufacturing process, its existing technology has been relatively mature, and is widely used in multiple fields. The main advantages of winding battery are: high efficiency, simple process and low cost.

[0003] The technical principle of winding battery is mainly through fixed winding needle to wind positive pole piece, diaphragm and negative pole piece according to certain order, and extrude into cylindrical or square. The size of pole piece and the number of winding are determined by the design capacity of battery. After winding, the battery cell will go through pre-pressing, gluing and other processes, and finally form finished battery.

[0004] Winding equipment is one of the core equipment in winding battery manufacturing. Its performance directly affects the winding quality and production efficiency of battery cell. At present, there are many types of winding equipment on the market, such as automatic winding machine, semi-automatic winding machine, etc.

[0005] The present application mainly designs the winding needle part in winding equipment and the winding assembly part for stacking pole piece. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a winding device with a pressing mechanism, so that the battery preparation device can more closely stack pole pieces when winding diaphragm.

[0007] In order to solve the above technical problems, the winding device with a pressing mechanism of the utility model comprises a pressing assembly for pressing stacked pole pieces, a track assembly for limiting the movement of the pressing assembly along the track, and a winding needle assembly located at the center of the pressing assembly and providing winding power. The pressing assembly comprises four pressing pieces, a rotating wheel connected to the pressing pieces and driving the movement of the pressing pieces. The track assembly comprises a barrel-shaped track column, and the outer surface of the track column is provided with four layers of annular groove-shaped track grooves distributed upward and downward. The lower part of the pressing piece is provided with a groove column, and the bottom end of the groove column is provided with a protrusion, which can be located in the track groove and slide along the track groove. The shape of the track groove is undulating.

[0008] The winding device with a pressing mechanism of the utility model, the rotating wheel is circular, including a fixed ring of outer ring and a gear rotating wheel of inner ring, and the gear rotating wheel can rotate around the shaft. The pressing piece comprises a block-shaped fixed part fixed on the bottom surface of the gear rotating wheel and extending downward, and a long strip-shaped pressing foot penetrating the gear rotating wheel and movable upward and downward. The side wall of the fixed part is provided with a vertical sliding slide rail, the upper end of the groove column is sleeved on the outer side of the slide rail and slides along the slide rail, and the middle part of the groove column and the bottom end of the pressing foot are connected by a lever. The shaft of the lever is fixed on the side of the fixed part bottom end close to the pressing foot.

[0009] The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0010] The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0011] The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0012] The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel. BRIEF DESCRIPTION OF DRAWINGS

[0013] The winding device with the pressing piece mechanism will be further described in detail in combination with the drawings and specific embodiments.

[0014] Figure 1 The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0015] Figure 2 The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0016] Figure 3 The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0017] Figure 4 The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0018] Figure 5 The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel. DETAILED DESCRIPTION

[0019] As Figures 1 to 5 The winding device with the pressing piece mechanism has the advantages that the pressing foot lifting column is columnar at the lower part of the pressing foot, the bottom end of the pressing foot lifting column is connected with one end of the lever, the top end of the pressing foot lifting column is connected with the front and back moving column through a shaft, the top end of the front and back moving column is connected with the elastic pressing part for pressing the pole piece, and the front and back moving column is located on the gear rotating wheel.

[0020] AsFigure 1 The winding device with the tablet pressing mechanism is installed on a battery preparation device, and mainly comprises a pressing assembly 1 and a track assembly 2, so that the tablet 11 can be ensured to be tightly and aligningly attached to the pole piece and the diaphragm, and the movement of the tablet 11 is stable and high in precision.

[0021] The winding needle assembly 3 comprises a long-strip-shaped main shaft 31, a motor connected to the bottom end of the main shaft 31, and a winding needle 32 connected to the top end of the main shaft 31, wherein the winding needle 32 is in a sheet shape and is used for winding the diaphragm, and the motor provides power for the rotation of the main shaft 31 around the axis.

[0022] As shown in Figure 1 and Figure 2 The track assembly 2 comprises a barrel-shaped track column 21 sleeved outside the main shaft 31 and a track following wheel 22 located at the bottom of the track column 21, the track column 21 is in a barrel shape, the track following wheel 22 is in a disc shape and is sleeved outside the main shaft 31 close to the motor, bearings are arranged between the track column 21 and the track following wheel 22 and between the track following wheel 22 and the main shaft 31, and the outer surface of the track column 21 is provided with an inwardly recessed annular groove, which is distributed in four layers and is matched with four tablets 11, and is a track groove 211.

[0023] The pressing assembly 1 comprises four tablets 11, which are arranged in front of and behind the winding needle 32, and a rotating wheel 12 connected to the tablets 11 and used for driving the tablets 11 to move.

[0024] The rotating wheel 12 is in a circular shape, is sleeved outside the main shaft 31 and is away from the motor, and comprises a fixed ring 121 of an outer ring and a gear rotating wheel 122 of an inner ring. Bearings are arranged between the fixed ring 121 and the gear rotating wheel 122, a ring of gears 1221 is arranged outside the gear rotating wheel 122, the gear rotating wheel 122 can be rotated through the gears 1221, and the gear rotating wheel 122 and the track following wheel 22 are connected through two rods 123, so that the track following wheel 22 rotates together with the gear rotating wheel 122.

[0025] As shown in Figure 3 The tablet 11 comprises a block-shaped fixed part 111 fixed to the bottom surface of the gear rotating wheel 122 and extended downward, and a long-strip-shaped pressing foot 112 penetrating through the gear rotating wheel 122 and being movable up and down, a slide rail 1111 which can slide along the axis direction of the main shaft 31 is arranged on the side wall of the fixed part 111, the slide rail 1111 is connected with a columnar groove column 1112, the middle part of the groove column 1112 and the bottom end of the pressing foot 112 are connected by a lever 113 (as shown in Figure 3 ), and the shaft of the lever 113 is fixed to the side of the fixed part 111 close to the pressing foot 112.

[0026] The groove column 1112 is sleeved on the outer edge of the slide rail 1111 at the upper end and slides along the slide rail 1111, and the lower end is provided with a protrusion located in the track groove 211. With the rotation of the gear wheel 122, the bottom end of the groove column 1112 is driven to move in the track groove 211. When reaching the part of the track groove 211 that is not horizontal, the groove column 1112 moves up and down along the slide rail 1111, and the presser foot 112 is driven to move up and down by the lever 113.

[0027] As shown in Figure 4 , the lower part of the presser foot 112 is a column-shaped presser foot lifting column 1121, the bottom end of which is connected to one end of the lever 113 (as shown in Figure 3 ), and the top end of the presser foot lifting column 1121 is shaft-connected with a front and rear moving column 1122, and the top end of the front and rear moving column 1122 is shaft-connected with an elastic pressing part 1123 for pressing on the pole piece.

[0028] The presser foot lifting column 1121 penetrates the gear wheel 122, and the front and rear moving column 1122 is located above the gear wheel 122 and connected with an L-shaped fixing piece 114 fixed on the upper surface of the gear wheel 122. The L-shaped fixing piece 114 is an inverted L shape, and the horizontal positioning groove 1141 of the horizontal side of the upper L shape is provided with a horizontal direction extension, and the top of the front and rear moving column 1122 is provided with a cam that can move within the range defined by the horizontal positioning groove 1141. The presser foot lifting column 1121 is driven to move up and down by the lever 113, thereby driving the front and rear moving column 1122 to move forward and backward in the horizontal positioning groove 1141, and then making the elastic pressing part 1123 press on or away from the pole piece.

[0029] The design of the four track grooves 21 is to appear zigzag when the four presser feet 112 need to be pressed during the winding process. By one track column 21, the pressing time of the four presser feet 112 is determined. The power is saved, and the cooperation is rigorous. The purpose of stable movement and high precision is achieved.

[0030] In order to facilitate the description of the above and below positioning direction, the patent application can be used horizontally in application.

Claims

1. A winding device with a sheet pressing mechanism, comprising a sheet pressing assembly (1) for pressing the stacked sheet, a track assembly (2) for defining the track movement of the sheet pressing assembly (1), and a winding needle assembly (3) located at the center of the sheet pressing assembly (1) and providing the winding power, the sheet pressing assembly (1) comprising four sheet pressing pieces (11) and a rotating wheel (12) connected with the sheet pressing pieces (11) and driving the movement of the sheet pressing pieces (11); characterized in that: The track assembly (2) comprises a barrel-shaped track column (21), the outer surface of the track column (21) is provided with four layers of annular groove-shaped track grooves (211) distributed upward and downward; the lower part of the pressing piece (11) is provided with a groove column (1112), the bottom end of the groove column (1112) is provided with a protrusion, which can be located in the track groove (211) and slide along the track groove (211); the shape of the track groove (211) has ups and downs.

2. The take-up apparatus with a tabletting mechanism according to claim 1, characterized in that: The rotating wheel (12) is a circular wheel, comprising a fixed ring (121) of an outer ring and a gear rotating wheel (122) of an inner ring, the gear rotating wheel (122) can rotate around the axis; the pressing piece (11) comprises a block-shaped fixed part (111) fixed on the bottom surface of the gear rotating wheel (122) and extending downward, and a long strip-shaped pressing foot (112) penetrating the gear rotating wheel (122) and being movable up and down, the side wall of the fixed part (111) is provided with a vertical sliding slide rail (1111), the upper end of the groove column (1112) is sleeved outside the slide rail (1111) and slides along the slide rail (1111), the middle part of the groove column (1112) and the bottom end of the pressing foot (112) are connected by a lever (113); the shaft of the lever (113) is fixed on the bottom end of the fixed part (111) close to one side of the pressing foot (112).

3. The winding apparatus with a tabletting mechanism according to claim 2, characterized in that: The lower part of the pressing foot (112) is a column-shaped pressing foot lifting column (1121), the bottom end of the pressing foot lifting column (1121) is connected with one end of the lever (113), the top end of the pressing foot lifting column (1121) is connected with a front and rear moving column (1122), the top end of the front and rear moving column (1122) is connected with an elastic pressing part (1123) for pressing the pole piece, and the front and rear moving column (1122) is located above the gear rotating wheel (122).

4. The take-up apparatus with a tabletting mechanism according to claim 3, characterized in that: The upper surface of the gear rotating wheel (122) is fixed with an overturned L-shaped L-shaped fixed part (114), the L-shaped horizontal side of the L-shaped fixed part (114) is provided with a horizontal positioning slot (1141) extending in the horizontal direction, and the top side of the front and rear moving column (1122) is provided with a cam which can move within the range defined by the horizontal positioning slot (1141).

5. The take-up apparatus with a tablet press mechanism according to claim 1, characterized in that: The winding needle assembly (3) comprises a long strip-shaped main shaft (31), a motor connected to the bottom end of the main shaft (31), and a winding needle (32) connected to the top end of the main shaft (31), the winding needle (32) is in the shape of a sheet; the rotating wheel (12) and the track assembly (2) are sleeved outside the main shaft (31), and the pressing piece (11) is pressed on the winding needle (32).

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