阅读说明：本技术 一种可做间隙涂布的锂电池极片底涂机 (Lithium battery pole piece bottom coating machine capable of performing gap coating ) 是由 张幸彬 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种可做间隙涂布的锂电池极片底涂机,包括放卷辊和收卷辊,所述放卷辊的一侧设置有放卷牵引辊,放卷牵引辊的一侧设置有A面凹版涂布辊,A面凹版涂布辊的一侧设置有第一剥离机构,第一剥离机构的一侧设置有A面干燥机构,A面干燥机构的一侧设置有B面凹版涂布辊,B面凹版涂布辊的一侧设置有第二剥离机构,第二剥离机构的一侧设置有B面干燥机构,本发明涉及锂电池生产技术领域。该可做间隙涂布的锂电池极片底涂机能有效地解决目前的涂布机利用改变涂布辊的位置或升高涂布辊的涂布高度来实现间隙涂布必然使之无法进行连续涂布及必然影响其整机运作的运行速度和运行精度,从而降低其的工作效率和降低其的涂布精度的问题。(The invention discloses a lithium battery pole piece bottom coating machine capable of being used for gap coating, which comprises an unwinding traction roller and a winding roller, wherein an unwinding traction roller is arranged on one side of the unwinding traction roller, an A-surface gravure coating roller is arranged on one side of the unwinding traction roller, a first stripping mechanism is arranged on one side of the A-surface gravure coating roller, an A-surface drying mechanism is arranged on one side of the first stripping mechanism, a B-surface gravure coating roller is arranged on one side of the A-surface drying mechanism, a second stripping mechanism is arranged on one side of the B-surface gravure coating roller, and a B-surface drying mechanism is arranged on one side of the second stripping mechanism. The lithium battery pole piece base coating machine capable of performing gap coating can effectively solve the problems that the gap coating cannot be performed continuously and the running speed and running precision of the whole machine operation are influenced necessarily by changing the position of the coating roller or increasing the coating height of the coating roller of the existing coating machine, so that the working efficiency of the coating machine is reduced and the coating precision of the coating machine is reduced.)

1. The utility model provides a can do lithium-ion battery pole piece prime coat machine of clearance coating which characterized in that: including unreeling roller and wind-up roll, one side of unreeling the roller is provided with unreels the carry over pinch rolls, and the one side of unreeling the carry over pinch rolls is provided with A face intaglio coating roll, and one side of A face intaglio coating roll is provided with first peeling means, and one side of first peeling means is provided with A face drying mechanism, and one side of A face drying mechanism is provided with B face intaglio coating roll, and one side of B face intaglio coating roll is provided with second peeling means, and one side of second peeling means is provided with B face drying mechanism, and one side of B face drying mechanism is provided with the rolling carry over pinch rolls, and the rolling carry over pinch rolls sets up the one side at the wind-up roll.

2. The lithium battery pole piece primer coating machine capable of being used for gap coating according to claim 1, is characterized in that: a plurality of first tensioning rollers are arranged between the unreeling traction roller and the A-side gravure coating roller, and a plurality of second tensioning rollers are arranged between the A-side drying mechanism and the B-side gravure coating roller.

3. The lithium battery pole piece primer coating machine capable of being used for gap coating according to claim 1, is characterized in that: and the upper surfaces of the unreeling traction roller, the A-surface gravure coating roller and the B-surface gravure coating roller are provided with press rollers.

4. The lithium battery pole piece primer coating machine capable of being used for gap coating according to claim 1, is characterized in that: the first stripping mechanism comprises a first guide roller, and a first stripping plate is arranged on one side of the first guide roller.

5. The lithium battery pole piece primer coating machine capable of being used for gap coating according to claim 1, is characterized in that: the second stripping mechanism comprises a second guide roller, and a second stripping plate is arranged on one side of the second guide roller.

Technical Field

The invention relates to the technical field of lithium battery production, in particular to a lithium battery pole piece prime coating machine capable of being used for gap coating.

Background

The traditional lithium battery pole piece bottom coating machine adopts an intaglio carved with a blank area to process pole pieces, when the interval of the blank area is larger than three thousand millimeters, the intaglio can not be processed, and a manufacturer develops the clutch action of the intaglio roller to complete the function of the blank area, so that the working speed is too low, the working speed is only 8-10 m/min, and the mass production condition is not met.

Although chinese patents, publication No. CN105921362A, entitled "a coater front and back coating alignment system" and publication No. CN106626723A, entitled "a double-sided foam printing machine", respectively, propose techniques capable of double-sided coating and double-sided printing in order to achieve the capability of coating or printing on both sides of a substrate, neither technique is capable of coating or printing on a gap region. In order to realize coating of the gap area of the substrate, the applicant has proposed chinese invention patent with publication number CN107984882A and patent name "coating gravure press equipment for lithium ion battery production", which can realize coating of both the front and back sides of the battery and the gap area of the battery, but the invention and the above-disclosed patent technology realize gap coating by modifying the structure of the coating roller, for example, by moving or raising the position of the coating roller so as to temporarily prevent the coating roller from pressing with the substrate, the coater with such a structure can realize gap coating, but the coating roller can not continuously perform coating in the process of changing the position or raising and lowering, and the adjustment of the position of the coating roller affects the coordination of the whole machine operation, thereby affecting the operation speed and operation accuracy, lowering the work efficiency and making the coating accuracy poor, in addition, the transformation of coating roll structure has the structure complicacy and reforms transform the shortcoming that the cost is high, and when the cylinder of control coating roll lift was bad, it just can't realize the clearance coating, and this brings very big inconvenience for manufacturing enterprise.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a lithium battery pole piece bottom coating machine capable of performing gap coating, the whole structural design of the bottom coating machine can automatically complete a series of operations such as unreeling, traction transmission, tensioning transmission, A surface coating, A surface gap gasket stripping, A surface drying, B surface coating, B surface gap gasket stripping, B surface drying, reeling and the like on a base material on one device, the whole coating process can enable the transmission tension of the base material and all rollers to continuously work at a constant speed without adjusting or changing the structure of a gravure coating roller and without adjusting or changing the transmission tension and the transmission speed of the base material, and the bottom coating machine also solves the problems that the existing device cannot process or can process but has low working efficiency when the interval of a blank area is larger.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a can be lithium-ion battery pole piece prime coat machine of clearance coating, is including unreeling roller and wind-up roll, one side of unreeling the roller is provided with unreels the carry over pinch rolls, and the one side of unreeling the carry over pinch rolls is provided with A face gravure roll, and one side of A face gravure roll is provided with first peeling means, and one side of first peeling means is provided with A face drying mechanism, and one side of A face drying mechanism is provided with B face gravure roll, and one side of B face gravure roll is provided with second peeling means, and one side of second peeling means is provided with B face drying means, and one side of B face drying means is provided with the rolling carry over pinch rolls, and the rolling carry over pinch rolls sets up the one side at the wind-up roll. The A-side drying mechanism and the B-side drying mechanism respectively comprise drying boxes, the left side and the right side of each drying box are respectively provided with a window for the base material to enter and exit, and a heating pipe is arranged in each drying box. One side of wind-up roll is provided with the servo motor that can pull the substrate conveying and be used for the rolling.

Preferably, a plurality of first tensioning rollers are arranged between the unreeling traction roller and the A-side gravure coating roller, and a plurality of second tensioning rollers are arranged between the A-side drying mechanism and the B-side gravure coating roller.

Preferably, the upper surfaces of the unwinding traction roll, the A-side gravure coating roll and the B-side gravure coating roll are provided with press rolls.

Preferably, the first peeling mechanism includes a first guide roller, a first peeling plate is provided on one side of the first guide roller, and the first peeling plate is installed in a direction opposite to the conveying direction of the substrate.

Preferably, the second peeling mechanism includes a second guide roller, a second peeling plate is provided on one side of the second guide roller, and the second peeling plate is installed in a direction opposite to the conveying direction of the substrate.

Preferably, a controller is arranged for controlling the operation of each component, the controller is electrically connected with the servo motor, the controller is a PLC programmable logic controller, and the PLC programmable logic controller can adopt but is not limited to a programmable controller sold on apriba under the brand name of video/feng, and the product number of 4586.

Advantageous effects

The invention provides a lithium battery pole piece bottom coating machine capable of being used for gap coating. The method has the following beneficial effects:

(1) the lithium battery pole piece base coating machine capable of performing gap coating can perform continuous coating operation without modifying the structure of a gravure roller and being incapable of adjusting the position of the gravure roller by using a conventional gravure roller, when the gap coating is required, a gasket with the width consistent with that of a blank area is attached to a printing plate substrate in advance for coating, after the substrate passes through a pressing point, each stripping mechanism is arranged on one side of each gravure roller, and each stripping mechanism can strip the gasket from the blank area in the coated substrate, so that the lithium battery pole piece base coating machine has the function of the blank area.

(2) The lithium battery pole piece bottom coating machine capable of performing gap coating is scientifically and reasonably provided with the position relation of each roller or each part, so that the continuous operation of the equipment can be ensured without influencing the transmission tension of a base material and changing the operation position of each roller in the use process of the equipment, the working speed and the coating precision can not be influenced in the whole coating process of the equipment, and the problems that the continuous coating cannot be necessarily performed by the gap coating and the operation speed and the operation precision of the whole machine of the equipment cannot be necessarily influenced by changing the position of the coating roller or increasing the coating height of the coating roller of the existing coating machine, the working efficiency of the existing coating machine is reduced, and the coating precision of the existing coating machine is reduced are solved.

Drawings

FIG. 1 is a schematic view of the working state of a lithium battery pole piece priming machine capable of being used as a gap according to the present invention.

FIG. 2 is a schematic structural diagram of one first peeling mechanism of the gap-making lithium battery pole piece primer coating machine of the present invention.

FIG. 3 is a schematic structural diagram of one second peeling mechanism of the gap-making lithium battery pole piece primer coating machine of the present invention.

In the figure: the device comprises an unwinding roller 1, an unwinding traction roller 2, an A-side gravure coating roller 3, a first peeling mechanism 41, a second peeling mechanism 42, an A-side drying mechanism 5, a B-side gravure coating roller 6, a B-side drying mechanism 7, a winding traction roller 8, a winding roller 9, a first tensioning roller 10, a second tensioning roller 11, a pressure roller 12, a first guide roller 410, a first peeling plate 411, a second guide roller 420 and a second peeling plate 421.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a can be lithium-ion battery pole piece prime coat machine of clearance coating, includes unreeling roller 1 and wind-up roll 9, unreeling roller 1's one side is provided with unreels carry over pinch rolls 2, unreels carry over pinch rolls 2's one side and is provided with A face gravure roll 3, and one side of A face gravure roll 3 is provided with first peeling means 41, and one side of first peeling means 41 is provided with A face drying mechanism 5, and one side of A face drying mechanism 5 is provided with B face gravure roll 6, and one side of B face gravure roll 6 is provided with second peeling means 42, and one side of second peeling means 42 is provided with B face drying mechanism 7, and one side of B face drying mechanism 7 is provided with rolling carry over pinch rolls 8, and rolling carry over pinch rolls 8 sets up the one side at wind-up roll 9.

In one embodiment, a plurality of first tensioning rollers 10 are arranged between the unreeling traction roller 2 and the A-side gravure coating roller 3, and a plurality of second tensioning rollers 11 are arranged between the A-side drying mechanism 5 and the B-side gravure coating roller 6.

In one embodiment, the unwinding traction roller, the A-side gravure coating roller 3 and the B-side gravure coating roller 6 are all provided with press rollers 12.

In one embodiment, the first peeling mechanism 41 includes a first guide roller 410, a first peeling plate 411 is disposed on one side of the first guide roller 410, and a peeling direction of the first peeling plate 411 is opposite to a conveying direction of the substrate.

In one embodiment, the second peeling mechanism 42 includes a second guide roller 420, a second peeling plate 421 is disposed on one side of the second guide roller 420, and the peeling direction of the second peeling plate 421 is opposite to the conveying direction of the substrate.

In one embodiment, the first peeling mechanism 41 and the second peeling mechanism 42 can be provided with one, two or more according to production needs.

In one embodiment, the operation process of the lithium battery pole piece primer coating machine capable of performing gap coating comprises the following steps: when in use, the device can carry out continuous coating operation by only using a conventional gravure coating roll, when clearance coating is needed, a gasket with the width consistent with that of a blank area is attached to the position of the blank area in a substrate in advance, then the substrate with the gasket attached to the position of the blank area is wound on an unwinding roll 1, then the beginning end of the unwound substrate is sequentially transmitted to a winding roll 9 through an unwinding traction roll 2, a first tensioning roll 10, an A-surface gravure coating roll 3, a first stripping mechanism 41, an A-surface drying mechanism 5, a second tensioning roll 11, a B-surface gravure coating roll 6, a second stripping mechanism 42, a B-surface drying mechanism 7 and a winding traction roll 8, a plurality of first tensioning rolls 10 are arranged between the unwinding traction roll 2 and the A-surface gravure coating roll 3, and a plurality of second tensioning rolls 11 are arranged between the A-surface drying mechanism 5 and the B-surface gravure coating roll 6, the base material can be tensioned and conveyed to avoid the phenomena of loosening and deviation conveying of the base material in the conveying process, so that the high coating precision and good coating effect of the whole coating process are ensured; the first stripping mechanism 41 can strip the gasket in the gap between two adjacent patterns for finishing the A-surface coating, and the second stripping mechanism 42 can strip the gasket in the gap between two adjacent patterns for finishing the B-surface coating by arranging the first stripping mechanism 41 on one side of the A-surface gravure coating roll 3 and arranging the second stripping mechanism 42 on one side of the B-surface gravure coating roll 6, so that the A surface and the B surface of the base material can automatically leave white areas, the whole structural design realizes a series of operations of unwinding, traction transmission, tensioning transmission, A-surface coating, A-surface gap gasket stripping, A-surface drying, B-surface coating, B-surface gap gasket stripping, B-surface drying, winding and the like of the base material on one device, and the whole coating process can ensure that the transmission tension of the base material and each roll can be kept constant without adjusting or changing the structure of the gravure coating roll and adjusting or changing the transmission tension and transmission speed of the base material The constant speed is continuously operated without stopping to avoid influencing the coating efficiency or the coating speed, and the working speed and the coating precision are ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.