Novel scraper device of coating machine

Abstract

The utility model belongs to the field of coating machines, and particularly relates to a novel scraper device of a coating machine, which comprises a rack, an end face drainage mechanism is arranged at the front part of the rack, a scraper frame mechanism is arranged at the upper part of the front side, side ink scraping mechanisms are arranged at two sides of the upper part, a pressing mechanism is arranged at the upper part of the rear side, and side pushing mechanisms are arranged at two sides. A lifting mechanism is arranged at the bottom, and an ink cavity mechanism is arranged inside. The closed type ink cavity assembly is provided with the lifting mechanism, the center height of the ink cavity and the printing roller can be easily adjusted through the hand wheel, and the adaptability between the ink cavity and the printing roller is ensured. Meanwhile, the left end face and the right end face of the scraper frame are provided with side face scraper blade seats, Teflon scraper blades are installed in the side face scraper blade seats, and sponge pads are arranged in the side face scraper blade seats in an embedded mode and attached to the lower portions of the stainless steel scrapers; therefore, when the plate roller rotates at a high speed, the slurry at the fillet of the plate roller can be effectively prevented from splashing. Due to the fact that the slurry splashing problem is solved, the coating speed can be increased to 200 m / min, and the coating efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of coating machine especially relates to a novel doctor blade device of coating machine. BACKGROUND

[0002] The current technical plate roller of the institution has a series of serious problems in the running process. At the arc of the plate roller, the slurry is difficult to remove, resulting in slurry accumulation. When the plate roller speed exceeds 150m / min, the slurry accumulated at the arc will be thrown off the material disc, not only splashing to the ground to cause pollution, but also splashing to the plate roller and the product. If it splashes to the edge of the product, it will cause the white space to appear the impression; if it splashes to the plate roller rotating main shaft, the slurry will shrink with the main shaft after solidification, affecting the service life of the oil seal, and then causing the lubricating oil to overflow, polluting the material disc slurry, and finally causing the product to be scrapped.

[0003] The reason is that the existing doctor blade is a straight plane as a whole, which cannot effectively seal the arc of the plate roller when it is attached to the plate roller, and the size of the arc of the plate roller is different, which further aggravates the problem. In addition, the plastic doctor blade used in the prior art is easily damaged due to the presence of carbon powder and other foreign particles in the battery slurry solution, not only easy to produce doctor blade line defects in the coating process, but also short service life. Therefore, it is urgent to develop a new device to solve these pain points. SUMMARY

[0004] The utility model provides a novel doctor blade device of coating machine aiming at the above problems.

[0005] In order to achieve the above purpose, the utility model provides a novel doctor blade device of coating machine, including frame, the front of frame is provided with end face drainage mechanism, the front side upper portion is provided with doctor blade frame mechanism, both sides of upper portion are provided with side ink scraping mechanism, the back side upper portion is provided with pressure mechanism, both sides are provided with side pushing mechanism, the bottom is provided with lifting mechanism, the inside is provided with ink cavity mechanism.

[0006] As a preferred, the frame is further provided with doctor blade angle adjusting mechanism.

[0007] As a preferred, the doctor blade frame mechanism includes stainless steel doctor blade, the stainless steel doctor blade is provided with side scraper seat, the side scraper seat is provided with teflon doctor blade piece, the teflon doctor blade piece and side scraper seat are provided with sponge pad.

[0008] As a preferred, the side ink scraping mechanism includes limiting baffle, spring and side doctor blade.

[0009] Compared with the prior art, the utility model has the advantages and positive effects that:

[0010] The closed ink cavity assembly is equipped with a lifting mechanism, the center height of the ink cavity and the plate roller can be easily adjusted through a hand wheel, and the adaptability between the ink cavity and the plate roller is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 A front view of a novel doctor device of a coating machine provided for example 1;

[0013] Figure 2 A side view of a novel doctor device of a coating machine provided for example 1;

[0014] Figure 3 A top view of a novel doctor device of a coating machine provided for example 1;

[0015] Figure 4 A structure diagram of a doctor holder mechanism in a novel doctor device of a coating machine provided for example 1;

[0016] Figure 5 A perspective view of the doctor holder mechanism;

[0017] Figure 6 A perspective view of the side ink scraping mechanism;

[0018] In the above drawings, 1 is a plate roller, 2 is an end face drainage mechanism, 3 is a doctor holder mechanism, 301 is a side scraping plate seat, 302 is a Teflon doctor blade, 303 is a sponge pad, 304 is a stainless steel doctor blade, 4 is a pressing mechanism, 5 is a side pushing mechanism, 6 is a lifting mechanism, 7 is a side ink scraping mechanism, 701 is a limiting baffle, 702 is a spring, 703 is a side doctor blade, 8 is a doctor angle adjusting mechanism, and 9 is an ink cavity mechanism. DETAILED DESCRIPTION

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, such as Figures 1-6 As shown, this utility model provides a novel scraper device for a coating machine, including a frame. The front of the frame is provided with an end face diversion mechanism, the upper front side is provided with a scraper holder mechanism, the upper two sides are provided with side ink scraping mechanisms, the upper rear side is provided with a pressing mechanism, the two sides are provided with side pushing mechanisms, the bottom is provided with a lifting mechanism, and the interior is provided with an ink cavity mechanism.

[0022] Preferably, the frame is also provided with a scraper angle adjustment mechanism.

[0023] Preferably, the scraper holder mechanism includes a stainless steel scraper, a side scraper seat is provided on the stainless steel scraper, a Teflon scraper blade is provided in the side scraper seat, and a sponge pad is provided between the Teflon scraper blade and the side scraper seat.

[0024] Preferably, the side-scraping mechanism includes a limiting baffle, a spring, and a side scraper.

[0025] The device works in conjunction with the plate roller 1. The end face drainage mechanism 2 is respectively arranged on the two ends of the ink cavity mechanism 9 for connection and fixation, and is used for draining the overflowed slurry from the end face to the tray. The scraper holder mechanism 3 is arranged above the ink cavity mechanism 9, and the side scraper seat 301 is arranged on the left and right end faces of the scraper holder mechanism 3 and is connected and fixed by screws. The side scraper seat 301 is internally provided with a Teflon scraper blade 302, which is connected and fixed by a top screw. The sponge pad 303 is connected by embedding and is arranged inside the side scraper seat 301 below the stainless steel scraper 304. The sponge pad 303 has a certain softness and can follow the self-adaptive adhesion to the plate roller 1 to change the angle of the end part, so as to block the slurry splashing at the round corner of the plate roller. The pressing mechanism 4 is connected with the scraper holder mechanism 3 through threads, drives the scraper mechanism 3 to be pressed on the plate roller 1, and then performs the scraping operation. The side pushing mechanism 5 is connected with the ink cavity mechanism 9 through a shaft rod and is arranged at the two ends to drive the ink cavity mechanism 9 to adhere to the plate roller 1, so as to promote the slurry to be sealed in the ink cavity. The lifting mechanism 6 is fixedly connected with the ink cavity mechanism 9 by screws to adjust the height and be consistent with the axis of the plate roller 1. The side ink scraping mechanism 7 is installed at the two ends of the ink cavity mechanism 9 to scrape the slurry on the end face of the plate roller and drain it into the end face drainage mechanism 2 and then into the tray. The side ink scraping mechanism 7 is composed of a limiting baffle 701, a spring 702 and a side scraper 703. The side scraper 703 is adhered to the side face of the plate roller 1 under the action of the spring 702 to scrape the slurry attached to the plate roller and drain it into the end face drainage mechanism 2 and then into the tray. The scraper angle adjusting mechanism 8 is fixedly connected below the scraper holder mechanism 3 by a shaft rod to adjust the angle of the stainless steel scraper 304 and the coating angle of the plate roller 1.

[0026] The present application focuses on the innovative design of the scraper device of the coating machine, which is composed of a closed ink cavity assembly, an end face drainage assembly and a scraper holder assembly, and exhibits many significant beneficial technical effects compared with the prior art.

[0027] In the prior art, the scraper angle is fixed and cannot be adjusted, and can only be adjusted as a whole, which is difficult to meet the demand for flexible adjustment of the coating scraper angle in actual production of the lithium battery industry. However, the scraper holder assembly of the present application adopts an independent scraper adjusting mechanism design. Therefore, during the production process, the operator can flexibly adjust the scraper angle according to the specific production process requirements. When the production process has special requirements for the scraper angle, the design can make the scraper at the best working angle, effectively reduce the occurrence of phenomena such as scraper lines and color difference lines, and significantly improve the coating quality of the product.

[0028] In the prior art, the sealing of the arc of the plate roller is not good, which leads to serious splashing of the slurry. The closed ink cavity assembly of the present application is equipped with a lifting mechanism, which can easily adjust the center height of the ink cavity and the plate roller through a hand wheel, ensuring the adaptability between the ink cavity and the plate roller. At the same time, the side scraper seat is installed on the left and right end faces of the scraper holder, the Teflon scraper blade is installed in the seat, and the sponge pad is embedded in the side scraper seat and attached to the lower side of the stainless steel scraper. Because the sponge pad is soft, it can adapt to the different angle changes of the end of the plate roller. In this way, when the plate roller rotates at high speed, it can effectively block the splashing of the slurry at the round corner of the plate roller. Because the splashing of the slurry is solved, the coating speed can be increased to 200 m / min, greatly improving the coating efficiency.

[0029] In the prior art, the plastic scraper is easily damaged by carbon powder and other foreign particles in the battery slurry solution, and has a short service life. The scraper of the scraper holder mechanism of the present application is designed with stainless steel material. The stainless steel material has higher wear resistance, and can effectively reduce wear when facing battery slurry solution containing carbon powder and other foreign particles. Due to the reduction of wear, the service life of the scraper is greatly prolonged. Moreover, the selection of this material also reduces the probability of the occurrence of color difference lines and scraper line abnormalities during the coating process, ensuring the stability and continuity of production, further improving product quality, and reducing production cost.

[0030] The design and advantages of the present application are as follows:

[0031] (1) The novel scraper device of the coating machine is composed of a closed ink cavity assembly, an end face drainage assembly, and a scraper holder assembly. The closed ink cavity assembly is connected to the end face drainage assembly at both ends, and the scraper holder assembly is placed on the closed ink cavity assembly and connected and fixed.

[0032] (2) The scraper angle adjusting mechanism is connected and fixed below the scraper holder mechanism by a shaft rod, adjusts the coating angle of the stainless steel scraper and the plate roller, and realizes flexible adjustment of the scraper angle.

[0033] (3) The side scraper seat is installed on the left and right end faces of the scraper holder mechanism, the Teflon scraper blade is installed inside the side scraper seat, and the sponge pad is embedded in the inside of the side scraper seat and attached to the lower side of the stainless steel scraper. The sponge pad has a certain softness and can adapt to the different angle changes of the end of the plate roller, thereby blocking the splashing of the slurry at the round corner of the plate roller.

[0034] (4) The end face drainage assembly is designed with a side ink scraping mechanism, which is installed at both ends of the ink cavity mechanism. The slurry on the end face of the plate roller is scraped and drained into the end face drainage mechanism, and then enters the tray, preventing the accumulation of slurry on the side of the plate roller and preventing splashing of the slurry.

[0035] (5) The coating speed using this device can be increased to 200 m / min, greatly improving the coating efficiency.

[0036] (6) The scraper holder mechanism scraper adopts stainless steel material design, which can reduce wear, prolong service life, and reduce coating color difference line and scraper line abnormality.

[0037] In addition, the existing technology is prone to accumulate and splash on the side of the plate roller. The end face drainage assembly of the present application is designed with a side ink scraping mechanism, which is installed at both ends of the ink cavity mechanism. Its working principle is to scrape off the paste on the end face of the plate roller and drain it into the end face drainage mechanism, and then the paste enters the tray. In this way, the paste accumulation on the side of the plate roller is fundamentally prevented, and the paste splashing is effectively prevented, ensuring the cleanliness of the production environment and avoiding the adverse effects of paste splashing on product quality and production equipment.

[0038] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments within the technical content of the present application, according to the technical essence of the present application, still belongs to the protection scope of the present application.

Claims

1. A novel doctor blade device for a coater comprising a frame, characterized in that, The front part of the frame is provided with an end face drainage mechanism, the upper front side is provided with a scraper holder mechanism, the upper two sides are provided with side ink scraping mechanisms, the upper rear side is provided with a pressing mechanism, the two sides are provided with side pushing mechanisms, the bottom is provided with a lifting mechanism, and the inside is provided with an ink cavity mechanism.

2. A novel doctor blade device for a coater according to claim 1, characterized in that, The frame is also provided with a scraper angle adjusting mechanism.

3. A novel doctor blade device for a coater according to claim 2, characterized in that, The scraper holder mechanism comprises a stainless steel scraper, a side scraper seat is arranged on the stainless steel scraper, a Teflon scraper blade is arranged in the side scraper seat, and a sponge pad is arranged between the Teflon scraper blade and the side scraper seat.

4. A novel doctor blade device for a coater according to claim 3, characterized in that, The side ink scraping mechanism comprises a limiting baffle, a spring and a side scraper.

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