An adhesive application apparatus is provided. The apparatus uses a rolled on adhesive applied to a substrate. After roll application, an adhesive activator is sprayed onto the substrate. By spraying an activator onto the substrate after the adhesive is applied, the adhesive may be made tacky for adhesion, but the adhesive used for rolling may be highly stable and slow to dry/cure without said activator, which enhances rolled application effectiveness.

A separator coating apparatus for coating an organic slurry on a separator, the apparatus including a coating bar that rotates in a transferring direction of the separator and coats the organic slurry on the separator; a bar holder spaced apart from the coating bar such that gap is present between the bar holder and the coating bar, the organic slurry being supplyable into the gap and onto the rotating coating bar; a coating block that supplies the organic slurry into the gap through a supply passage at both sides of the bar holder relative to the transferring direction of the separator; and a supporter that is on the bar holder and facing the coating bar.

A method for applying a product by roller on a surface of a substrate (112) transported horizontally with respect to an application head (111, 111′) is discloses. The method includes moving the application head (111, 111′) immediately from a lowered position of the application head (111, 111′), wherein the application roller (122, 122′) applies the product in a predetermined position of the surface of the substrate, to a raised position of the application head (111, 111′), wherein the application roller (122, 122′) does not apply product; or vice versa. An application system using the method for applying a product by roller is also disclosed.

Provided are a gravure coating device for preparing a large-width ultrathin metal lithium strip and the preparation method, relating to the technical field of preparation of metal lithium materials. The device comprises: a lithium-melting tank (17), a micro-gravure roller (5), a unwinding device, a substrate back roller (7), a hot pressing device and a winding device; wherein the lower portion of the micro-gravure roller (5) is immersed into the liquid lithium in the lithium-melting tank (17); one side of the micro-gravure roller (5) is provided with a hot scraper (6), and the end portion of the hot scraper (6) is in contact with the surface of the micro-gravure roller (5); the substrate back roller (7) is arranged diagonally above the micro-gravure roller (5); the unwinding device is arranged on one side of the substrate back roller (7); the winding device is arranged above the substrate back roller (7); the hot pressing device is arranged between the substrate back roller (7) and the winding device; after passing through the substrate back roller (7) and the hot pressing device, the substrate on the unwinding device is winded onto the winding device. The device is simple in structure and reasonable in design, effectively improves the coating uniformity, and realizes automatic production of ultrathin metal lithium strips with a thickness of 1-50 μm, thereby greatly improving work efficiency and product quality.

At the time of forming a paste layer on a substrate sheet by use of three rolls placed at right angles, in order to offset a variation amount of a first gap due to thermal expansion of the rolls, a variation amount in a given detection period is calculated by use of outputs of a first sensor configured to detect a coating film surface of a second-roll coating film of a second roll and a second sensor configured to detect a second-roll surface, and the first roll is moved by use of a first-roll moving mechanism.

At the time of forming a paste layer on a substrate sheet by use of three rolls placed at right angles, in order to offset a variation amount of a first gap due to thermal expansion of the rolls, a variation amount in a given detection period is calculated by use of outputs of a first sensor configured to detect a coating film surface of a second-roll coating film of a second roll and a second sensor configured to detect a second-roll surface, and the first roll is moved by use of a first-roll moving mechanism.

An adhesive application apparatus is provided. The apparatus uses a rolled on adhesive applied to a substrate. After roll application, an adhesive activator is sprayed onto the substrate. By spraying an activator onto the substrate after the adhesive is applied, the adhesive may be made tacky for adhesion, but the adhesive used for rolling may be highly stable and slow to dry/cure without said activator, which enhances rolled application effectiveness.

A system for applying a product (3) by roller is disclosed. The system has an applicator roller (1) for applying a product (3) on a substrate (4) and a first dosing roller (2) for dosing said product (3) on the surface of the applicator roller (1), wherein the system comprises at least one second dosing roller (2) configured to fine-tune the dosing performed by the first dosing roller (2), thereby adjusting the amount of product (3) dosed on the surface of the applicator roller (1).

A method for applying a product by roller on a surface of a substrate (112) transported horizontally with respect to an application head (111, 111) is discloses. The method includes moving the application head (111, 111) immediately from a lowered position of the application head (111, 111), wherein the application roller (122, 122) applies the product in a predetermined position of the surface of the substrate, to a raised position of the application head (111, 111), wherein the application roller (122, 122) does not apply product; or vice versa. An application system using the method for applying a product by roller is also disclosed.

Described is a device (10) for applying an adhesive (C). The device (10) comprises at least one rotary gluing member (21, 31) designed to transfer to a mass of adhesive (C) towards a surface to be glued (S) and a plurality of rotating distributor members (51a-g) susceptible to being interposed, in operation, between the gluing members (21, 31) and the surface to be glued (S). The plurality of distributor members (51a-g) comprises a first portion of distributor members (51b, 51d, 51f) susceptible to make contact with the gluing member (21, 31) and a second portion of distributor members (51a, 51c, 51e, 51g) susceptible to remaining spaced from the gluing member (21, 31).