CN105712121A - A lithium battery diaphragm slitting machine - Google Patents

Abstract

The invention discloses a lithium battery diaphragm splitting machine which comprises a side rectifying platform mechanism, wherein an air-expanding shaft unwinding mechanism is arranged at the upper end of the side rectifying platform mechanism, a flaw detection platform is arranged at the upper end of the right side of the air-expanding shaft unwinding mechanism, a transition mechanism is arranged at the lower end of the right side of the flaw detection platform, a winding mechanism is arranged at the right end of the transition mechanism, the winding mechanism comprises a winding frame, a winding main roller is arranged at the upper end of the winding frame, slip ring locking devices are arranged on the left side and the right side of the winding main roller, a diaphragm reverse side cutting mechanism and a diaphragm front side cutting mechanism are arranged on the winding main roller, a roller main transmission mechanism is arranged at the lower ends of the diaphragm reverse side cutting mechanism and the diaphragm front side cutting mechanism, and a circular. The invention can realize zero tension unreeling, stable diaphragm reeling and neat end surface, eliminates wrinkle stripes on the surface of the diaphragm, enables the surface of the diaphragm after slitting and reeling to be smoother, can meet different requirements of customers, and can be widely applied in the lithium battery industry.

Description

A lithium battery diaphragm slitting machine

technical field

The invention relates to the technical field of slitters, in particular to a lithium battery diaphragm slitter.

Background technique

With the rapid development of the new energy industry, the production demand for lithium battery separators and automotive power battery separators is large. More and more manufacturers use domestic separators. The separators required for lithium batteries need to be cut into corresponding widths according to the battery specifications. The cut separators are: Dry film, wet film, and ceramic film require fast cutting speed, neat sides, and low winding tension. Diaphragm slitting machines are indispensable equipment for the production of lithium batteries.

At present, there are two types of diaphragm slitters on the market. One is imported machinery with fast cutting speed. The effect is good and the price is expensive. Few companies are willing to buy it. The other is modified by packaging materials and equipment. The effect is poor, the side of the diaphragm is uneven, and the tension is too large. Although the slit diaphragm can be used roughly before, but the current market has higher and higher requirements for the capacity of lithium batteries, so the production process of lithium batteries must be strictly controlled. Cutting is one of the sources for the production of lithium battery materials.

Contents of the invention

The purpose of the present invention is to provide a lithium battery diaphragm slitting machine for the deficiencies of the prior art. The lithium battery diaphragm slitting machine adopts the synchronous operation of the rewinding and unwinding diameter, which can achieve zero tension unwinding, stable diaphragm rewinding, and neat end faces. During the unwinding process, the diaphragm effectively releases the internal stress in the parent roll and eliminates the wrinkles and stripes on the surface of the film. It makes the surface of the diaphragm more smooth after slitting and winding. Knife, scratch knife reverse side knife, round knife hobbing, can meet the different needs of customers, and can be widely used in the lithium battery industry.

In order to achieve the above object, the present invention is achieved through the following technical solutions.

A lithium battery diaphragm slitting machine, including an edge correcting platform mechanism that can translate left and right, an air-expanding shaft unwinding mechanism is installed on the upper end of the edge-correcting platform mechanism, and a defect detection platform is installed on the upper right side of the air-expanding shaft unwinding mechanism, The lower end of the right side of the defect detection platform is equipped with a horizontally arranged transition mechanism. The right end of the transition mechanism is equipped with a winding mechanism. The winding mechanism includes a winding frame. The upper end of the winding frame is equipped with a horizontally arranged winding The main roller, the left and right sides of the winding main roller are equipped with slip ring locking devices, the left lower end of the winding main roller is equipped with a diaphragm reverse cutting mechanism, and the right lower end is equipped with a diaphragm front cutting mechanism. The lower end of the scribing mechanism and the diaphragm front scribing mechanism is equipped with a roller main transmission mechanism, and the right side of the diaphragm front scribing mechanism is equipped with a circular knife hobbing device.

Wherein, the inflatable shaft unwinding mechanism is equipped with a left inflatable shaft and a right inflatable shaft.

Wherein, the defect detection platform is equipped with a defect detection device.

Wherein, the upper end of the winding mechanism is equipped with a static elimination device arranged horizontally.

Wherein, the slip ring locking device is installed on the upper end of the winding frame through an independent arm.

Wherein, the roller main transmission mechanism is equipped with at least five driving rollers.

Wherein, the material of the winding main roll is EPDM rubber.

The beneficial effects of the present invention are as follows: a lithium battery diaphragm slitting machine according to the present invention includes an edge correcting platform mechanism that can translate left and right, the upper end of the edge correcting platform mechanism is equipped with an air-expanding shaft unwinding mechanism, and the air-expanding shaft unwinds The upper end of the right side of the rolling mechanism is equipped with a defect detection platform, and the lower end of the right side of the defect detection platform is equipped with a transition mechanism arranged horizontally. The right end of the transition mechanism is equipped with a winding mechanism. The winding mechanism includes a winding frame. The upper end of the frame is equipped with a horizontally arranged winding main roller, and the left and right sides of the winding main roller are equipped with slip ring locking devices. The lower end is equipped with a diaphragm front cutting mechanism, the diaphragm reverse side cutting mechanism and the diaphragm front cutting mechanism are equipped with a roller main drive mechanism at the lower end, and the right side of the diaphragm front cutting mechanism is equipped with a circular knife rolling cutting device. The invention adopts the synchronous operation of the rewinding and unwinding roll diameter, which can achieve zero tension unwinding, the diaphragm is stable in rewinding, and the end face is neat. After cutting and rewinding, the surface of the diaphragm is smoother. There are three cutting structures in this machine design, namely, the knife is cut from the front side of the knife, the knife is cut from the reverse side of the knife, and the round knife is rolled, which can meet the different needs of customers and can pass through lithium batteries. industry is widely used.

Description of drawings

The present invention will be further described below using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of another perspective of the present invention.

detailed description

The present invention will be described below in conjunction with specific embodiments.

As shown in Figure 1-2, a lithium battery diaphragm slitting machine includes an edge correction platform mechanism 1 that can translate left and right. The upper end of the edge correction platform mechanism 1 is equipped with an air expansion shaft unwinding mechanism 2. The upper end of the right side of the mechanism 2 is equipped with a defect detection platform 3, and the lower end of the right side of the defect detection platform 3 is equipped with a transition mechanism 4 arranged horizontally. The right end of the transition mechanism 4 is equipped with a winding mechanism 5, and the winding mechanism 5 includes a The winding frame 51, the upper end of the winding frame 51 is equipped with a horizontally arranged winding main roller 52, the left and right sides of the winding main roller 52 are equipped with slip ring locking devices 53, and the left side of the winding main roller 52 The lower end is equipped with a diaphragm reverse cutting mechanism 54, and the right lower end is equipped with a diaphragm front cutting mechanism 55. The right side of the cutting mechanism 55 is equipped with a circular knife hobbing device 57 .

Further, the inflatable shaft unwinding mechanism 2 is equipped with a left inflatable shaft 21 and a right inflatable shaft 22 to tighten the film roll concentrically, and the unwinding servo motor works synchronously with the winding.

Further, the defect detection platform 3 is equipped with a defect detection device 31, which can quickly detect whether there is a defect on the surface of the diaphragm when the diaphragm is running at high speed, and distinguish the result in real time.

Further, the upper end of the winding mechanism 5 is equipped with a static elimination device 58 arranged horizontally, which can eliminate static electricity on the diaphragm.

Further, the slip ring locking device 53 is installed on the upper end of the winding frame 51 through the independent arm 531, and the slip ring can tighten the winding paper tube to ensure that the paper tube does not loosen during high-speed operation. According to the design principle of the independent arm 531, the winding tension can be independently controlled by the weight of the independent arm 531 itself, and the winding tension can be provided without stretching the diaphragm.

Further, the roller main transmission mechanism 56 is equipped with at least five driving rollers 561 to ensure the uniform transmission of the diaphragm.

Further, the material of the winding main roller 52 is EPDM rubber, which has a certain adsorption force on the diaphragm and has the function of positioning the diaphragm. When the independent arm 531 is pressed down, the paper tube is close to the large rubber roller for passive winding.

Further explanation is needed. The present invention adopts the synchronous operation of the rewinding and unwinding roll diameter, which can achieve zero tension unwinding, stable diaphragm rewinding, and neat end faces. The wrinkle stripes make the surface of the diaphragm more smooth after slitting and winding; there are three kinds of slitting structures in the design of the present invention, which are respectively the reverse side of the diaphragm cutting mechanism 54, the front side of the diaphragm cutting mechanism 55 and the circular knife hobbing device 57, in which the diaphragm Reverse cutting mechanism 54 can cut from the reverse side of the diaphragm when the ceramic diaphragm is slitting and rewinding in a direction. Knife roll cutting device 57 has upper and lower circular knives, rolls and cuts, does not strain the diaphragm cutting place, has a good appearance, can meet the different needs of customers, and can be widely used in the lithium battery industry.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.

Claims (7)

1. a lithium electric separator cutting machine, it is characterized in that: include can left and right translation entangle limit platform mechanism (1), entangle limit platform mechanism (1) upper end and be equiped with gas expansion shaft unreeling structure (2), upper end, gas expansion shaft unreeling structure (2) right side is equiped with Defect Detection platform (3), lower end, Defect Detection platform (3) right side is equiped with in horizontally disposed transition mechanism (4), transition mechanism (4) right-hand member is equiped with rolling-up mechanism (5), rolling-up mechanism (5) includes rolling frame (51), rolling frame (51) upper end is equiped with in horizontally disposed rolling home roll (52), rolling home roll (52) left and right sides is equiped with differential slip ring locking device (53), lower end, rolling home roll (52) left side is equiped with barrier film reverse side cutting-up mechanism (54), lower end, right side is equiped with barrier film front cutting-up mechanism (55), barrier film reverse side cutting-up mechanism (54) and barrier film front cutting-up mechanism (55) lower end are equiped with roller main drive gear (56), barrier film front cutting-up mechanism (55) right side is equiped with dise knife rolling cutting device (57).

2. a kind of lithium electric separator cutting machine according to claim 1, it is characterised in that: described gas expansion shaft unreeling structure (2) is equiped with left gas expansion shaft (21) and right gas expansion shaft (22).

3. a kind of lithium electric separator cutting machine according to claim 1, it is characterised in that: described Defect Detection platform (3) is equiped with Defect Detection device (31).

4. a kind of lithium electric separator cutting machine according to claim 1, it is characterised in that: described rolling-up mechanism (5) upper end is equiped with in horizontally disposed Destaticizing device (58).

5. a kind of lithium electric separator cutting machine according to claim 1, it is characterised in that: described differential slip ring locking device (53) is installed in described rolling frame (51) upper end by independent arm (531).

6. a kind of lithium electric separator cutting machine according to claim 1, it is characterised in that: described roller main drive gear (56) is equiped with at least five drive roll (561).

7. a kind of lithium electric separator cutting machine according to claim 1, it is characterised in that: the material of described rolling home roll (52) is the bright glue of ternary second.