CN209438922U - Lithium ion battery pole piece tension adjusting device - Google Patents

Abstract

The utility model discloses a lithium-ion battery pole piece tension adjustment device, which comprises a frame and a driving roller arranged in the frame, a rubber roller is arranged under the driving roller, and the rubber roller is connected with the frame through an adjustment part , the middle part of the adjusting arm is rotatably connected with the frame, and an adjusting mechanism is provided on the end of the adjusting arm away from the rubber roller, and the adjusting mechanism includes a reset mechanism arranged above the adjusting arm and a reset mechanism arranged below the adjusting arm. The fine-tuning mechanism of this utility model is provided with an adjusting arm with a lever structure, and a reset mechanism and a fine-tuning mechanism are set at the end of the power arm of the adjusting arm, and the rotation adjustment is converted into a horizontal adjustment through a wedge, so that the adjustment amount is easier to control and the adjustment is more accurate. , and the structure is simple, the operation is convenient, and the rubber roller can be quickly adjusted to the optimal tension range, thereby improving the production quality and production efficiency, and greatly avoiding the phenomenon of a large number of defective products caused by inaccurate tension control.

Description

A device for adjusting the tension of lithium-ion battery pole piece

technical field

The utility model relates to the technical field of lithium-ion battery production equipment, in particular to a tension-adjusting device for pole pieces of a lithium-ion battery.

Background technique

The manufacture of lithium-ion batteries mainly includes processes such as slurry mixing, coating, rolling, slitting, sheeting, winding, assembling, baking, liquid injection, chemical formation, and volume separation. The realization of equipment functions in each process and the The stability of functional operation requires researchers and engineers to go through a long period of exploration and practice.

The coating process of lithium-ion batteries is an important part of the production of battery pole pieces. Generally, the uniformly stirred active material and a mixture of various additives are coated on the surface of the foil, and the coated pole pieces are baked in an oven. Finally, it is finally wound up at the tail of the coating machine. In order to make battery pole pieces with high surface density and ensure that the moisture content and surface density of the coated pole pieces meet the process requirements after baking, the oven needs to be made longer. However, in the process of pole piece tension control, if the tension is too high, the pole piece wrinkle problem will easily occur; Both the baking section and the winding section of the oven need to be controlled in sections. Therefore, there is a great need for a simple, convenient and adjustable pole piece tension isolating device.

Utility model content

The purpose of this utility model is to provide a lithium-ion battery pole piece tension adjustment device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A lithium-ion battery pole piece tension adjustment device, including a frame and a driving roller arranged in the frame, a rubber roller is arranged under the driving roller, and the rubber roller is connected with the frame through an adjustment part, and the adjustment part It includes an adjustment arm whose end is connected to the rubber roller. The middle part of the adjustment arm is connected to the frame in rotation. An adjustment mechanism is provided on the end of the adjustment arm away from the rubber roller. The adjustment mechanism includes an adjustment mechanism arranged above the adjustment arm. A reset mechanism and a fine-tuning mechanism arranged under the adjusting arm, the fine-tuning mechanism includes a wedge arranged at the lower end of the adjusting arm, the thickness of the wedge gradually increases from one end to the other end, and the wedge is horizontal to the frame Sliding connection, one end of the wedge is provided with an adjusting bolt.

As a further solution of the present invention: the adjustment parts are provided with two groups and arranged symmetrically at both ends of the rubber roller in the axial direction.

As a further solution of the utility model: a motor is connected to one end of the driving roller, and the motor is fixed on one side of the frame.

As a further solution of the utility model: a fulcrum is provided inside the frame, and the middle part of the adjusting arm is connected to the fulcrum in rotation.

As a further solution of the utility model: the reset mechanism includes a power storage device connected to the frame, the front end of the power storage device is provided with a connecting rod, and the other end of the connecting rod is rotatably connected to the adjustment arm through a hinged seat.

As a further solution of the utility model: the power storage device is a spring or a hydraulic cylinder or an air cylinder.

As a further solution of the utility model: the end of the adjustment arm is provided with a roller, and the roller is connected to the end of the adjustment arm through a connecting shaft.

As a further solution of the utility model: the roller is rollingly arranged on the upper end of the wedge.

As a further solution of the present utility model: a support is provided inside the frame, the wedge is slidably disposed on the upper end of the support, and the adjusting bolt is disposed between the wedge and the support.

Compared with the prior art, the beneficial effect of the utility model is: the utility model sets the adjustment arm with a lever structure, and sets a reset mechanism and a fine-tuning mechanism at the end of the power arm of the adjustment arm, and converts the rotation adjustment into a horizontal adjustment through a wedge. Adjustment makes the adjustment amount easier to control and more accurate, and the structure is simple and the operation is convenient. It can quickly adjust the rubber roller to the optimal tension range, thereby improving the production quality and production efficiency, and greatly avoiding tension control. The phenomenon of a large number of defective products caused by inaccuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1-driving roller, 2-motor, 3-rubber roller, 4-adjusting arm, 5-fulcrum, 6-connecting rod, 7-hinge seat, 8-resetting mechanism, 9-connecting shaft, 10-roller, 11-wedge, 12-support, 13-adjusting bolt.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, in the embodiment of the present utility model, a kind of lithium-ion battery pole piece tension adjustment device comprises frame, is provided with drive roller 1 in the frame, and drive roller 1 end is provided with motor 2, and motor 2 is fixedly arranged on On one side of the frame, the drive roller 1 is provided with rotational power. The lower end of the drive roller 1 is provided with a rubber roller 3, and both ends of the rubber roller 3 are provided with adjustment parts. The adjustment part includes an adjustment arm 4 and an adjustment mechanism. The middle part of the adjustment arm 4 The fulcrum 5 is rotatably connected with the frame to form a lever mechanism. One end of the adjustment arm 4 is connected with the rubber roller 3, and the other end of the adjustment arm 4 is connected with the adjustment mechanism. The adjustment mechanism includes a reset mechanism 8 and a fine-tuning mechanism. The power storage mechanism connected to the frame, the storage mechanism is a kind of spring, cylinder, hydraulic cylinder, the present embodiment selects the cylinder, the piston end of the cylinder is connected with the connecting rod 6, and the connecting rod is hinged with the adjusting arm 4 through the hinge seat 7 connected, and then the reset power can be provided for the adjusting arm 4 through the cylinder, the fine-tuning mechanism includes a support 12 fixedly connected with the frame, the upper end of the support 12 is provided with a wedge 11, and the thickness of the wedge 11 gradually increases from one end to the other end, An adjustment bolt 13 is provided between one end of the wedge 11 and the support 12, and then the adjustment bolt 13 can drive the wedge 11 to slide horizontally on the support 12. The end of the adjustment arm 4 is connected with a roller 10 through a connecting shaft 9, and the roller 10 is rolled and crimped on the upper end surface of the wedge 11, and then the angle of the adjusting arm 4 can be adjusted by adjusting the relative position of the wedge 11 and the roller 10, so the actual position of the rubber roller 3 can be adjusted by changing the angle of the adjusting arm 4 .

When the utility model is in use, the lithium-ion battery pole piece is first bypassed by the driving roller 1 and the rubber roller 3, and then the motor 2 is started, and the driving roller 1 is driven to rotate by the motor 2, and then the cylinder in the reset mechanism 8 is started to pass through the cylinder. Push one end of the power arm of the adjusting arm 4 to move downward until the roller 10 at the end of the adjusting arm 4 is in close contact with the upper surface of the wedge 11, and then under the action of the lever, the other end of the adjusting arm 4 will drive the rubber roller 3 to move upward , make the rubber roller 3 close to the driving roller 1, increase the tension, then turn the adjusting bolt 13, and drive the wedge 11 to move horizontally on the support 12 through the adjusting bolt 13. Since the wedge 11 is a structure with a gradual change in thickness, the wedge 11 During the horizontal movement, when the roller 10 on the upper surface of the wedge 11 moves to the thicker end of the wedge 11, one end of the power arm of the adjustment arm 4 rotates upward, and then the adjustment arm 4 drives the rubber roller 3 downward Rotate, thereby reducing the tension of the battery pole piece. When the roller on the upper end surface of the wedge 11 moves to the thinner end of the wedge, the power arm of the adjustment arm 4 moves downward under the action of the reset mechanism 8, and then passes through the adjustment arm. 4 drives the rubber roller 3 to move upwards, thereby increasing the tension of the battery pole piece. During the tension adjustment process, the rotation of the rubber roller 3 is converted into the horizontal movement of the wedge 11, making the tension adjustment more accurate and faster.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. A lithium-ion battery pole piece tension regulator, comprising a frame and a drive roller (1) arranged in the frame, characterized in that, the drive roller (1) below is provided with rubber rollers (3), so The rubber roller (3) is connected to the frame through an adjustment part, the adjustment part includes an adjustment arm (4) whose end is connected to the rubber roller (3), and the middle part of the adjustment arm (4) is connected to the frame in rotation, so An adjustment mechanism is provided on the end of the adjustment arm (4) away from the rubber roller (3), and the adjustment mechanism includes a reset mechanism (8) arranged above the adjustment arm (4) and a reset mechanism arranged on the adjustment arm (4). ) below the fine-tuning mechanism, the fine-tuning mechanism includes a wedge (11) arranged at the lower end of the adjustment arm (4), the thickness of the wedge (11) gradually increases from one end to the other end, and the wedge (11) It is horizontally slidably connected with the frame, and one end of the wedge (11) is provided with an adjusting bolt (13). 2. A lithium-ion battery pole piece tension adjustment device according to claim 1, characterized in that, the adjustment parts are provided in two groups and arranged symmetrically at both ends of the rubber roller (3) in the axial direction. 3. A lithium-ion battery pole piece tension adjustment device according to claim 1, characterized in that, one end of the driving roller (1) is connected to a motor (2), and the motor (2) is fixed on the frame side. 4. A lithium ion battery pole piece tension adjustment device according to claim 1, characterized in that a fulcrum (5) is provided inside the frame, and the middle part of the adjustment arm (4) rotates with the fulcrum (5) connect. 5. A lithium-ion battery pole piece tension adjustment device according to claim 1, characterized in that, the reset mechanism (8) includes a power storage device connected to the frame, and the front end of the power storage device is provided with a connection Rod (6), the other end of the connecting rod (6) is rotatably connected with the regulating arm (4) through the hinge seat (7). 6 . A lithium-ion battery pole piece tension adjustment device according to claim 5 , wherein the power storage device is a spring or a hydraulic cylinder or an air cylinder. 7 . 7. A kind of lithium-ion battery pole piece tension regulating device according to claim 1, characterized in that, the end of the regulating arm (4) is provided with a roller (10), and the roller (10) passes through the connecting shaft ( 9) Connect with the end of the adjusting arm (4). 8. A lithium-ion battery electrode piece tension adjustment device according to claim 7, characterized in that the roller (10) is rollingly arranged on the upper end of the wedge (11). 9. A kind of lithium-ion battery pole piece tension adjustment device according to claim 1, characterized in that, the inside of the frame is provided with a support (12), and the wedge (11) is slidably arranged on the support ( 12) On the upper end, an adjusting bolt (13) is arranged between the wedge (11) and the support (12).