CN2449826Y

CN2449826Y - Scraper coater

Info

Publication number: CN2449826Y
Application number: CN 00255871
Authority: CN
Inventors: 鞠长华
Original assignee: Wulun Machinery Tech Dev Co Ltd Jingzhou City
Current assignee: Wulun Machinery Tech Dev Co Ltd Jingzhou City
Priority date: 2000-12-04
Filing date: 2000-12-04
Publication date: 2001-09-26
Anticipated expiration: 2010-12-04

Abstract

The utility model relates to a scraper coater which belongs to the field of paper machines. The utility model is composed of a machine frame 16, a back roller 1, a loading slot 4, a loading roller 2 and a scraper 10, wherein the loading roller 2 is arranged near the back roll 1; as a horizontal distance between the axle center of the loading roller 2 and the axle center of the back roll 1 is larger than 260 mm, the length of paper from the loading roller 2 to the scraper 10 is increased; after paint is coated on paper 7, the time of paint in reaching the scraper 10 is increased, and the paint can be tightly attached to the base plane of base paper; at the same time, the paint scraped by the scraper 10 can not fall back to the loading slot 4 under the loading roller 2. The utility model is in favor of raising the production rate and the coating quality of the coater, and is suitable for producing middle-class and low-class coated paper.

Description

A kind of Scraper applicator

The utility model relates to the spreader in the papermaking equipment, particularly the scraper apparatus for coating.

At present, be used for the paper apparatus for coating on the papermaking equipment, airblade coating device, gauge stick spreader, Scraper applicator etc. are arranged.The main weakness of airblade coating is that the coating solid content is low, the coating weight height, and energy consumption is big, is coated with shortcomings such as the banner error is big; And that the main weakness of gauge stick spreader is a coating weight is low, and the coating error in line is big.Scraper applicator is made up of frame, back flow roll, last hopper, last material roller, scraper, can overcome above-mentioned shortcoming, but the last material roller of existing Scraper applicator all be arranged on back flow roll just below, therefore arrive the close together of wing behind the paper material loading, to coating can not fully be absorbed by paper, cause the speed of a motor vehicle low, influence coating quality; In addition, since last material roller all be arranged on back flow roll below, the coating that is scraped by scraper is fallen back to again go up in the hopper of material roller below directly to be used further to coating, and contains a large amount of paper fibers and paint solidification thing particulate in the coating at this moment, they can recoat and be attached to paper, have a strong impact on the coating effect.

The purpose of this utility model is: provide a kind of and can improve the spreader speed of production, and can guarantee the Scraper applicator of coating quality.

For achieving the above object, solution of the present utility model is: it is made up of frame, back flow roll, last hopper, last material roller, scraper; Back flow roll, go up hopper, go up material roller, scraper is arranged on the frame, last hopper is arranged on below the material roller, scraper is arranged on by the back flow roll, last material roller is arranged on by the back flow roll, the material loading roll shaft heart to the horizontal range in back flow roll axle center greater than 260 millimeters.

Since the material loading roll shaft heart to the horizontal range in back flow roll axle center greater than 260 millimeters, increased paper from last material roller to the length scraper, make coating coat that the time to scraper increases behind the paper, make coating more step up to invest the body paper basal plane, help improving spreader speed of production and coating quality; In addition, since the material loading roll shaft heart to the horizontal range in back flow roll axle center greater than 260 millimeters, make material roller not below back flow roll, therefore, the coating that is scraped by scraper can not fall back in the last hopper of going up the material roller below, and having avoided other spreader to be attached to paper because of direct use recovery coating allows paper fiber that scraper scrapes or paint solidification thing particulate recoat influences the coating effect.Adopt the utility model, in fact formed duplex coating, promptly tightly invest the hard coat of body paper basal plane and the wet coating on doctor blade surface, in being adapted to most produce, end shelves coated paper in paper surface.

The utility model Scraper applicator is easy to operate, and is cheap, and energy efficient mainly is adapted to the existing home equipment transformation of China, is widely used in all kinds of coated paper processing.

Below in conjunction with accompanying drawing, embodiment is described in further detail to the utility model:

Fig. 1 is the utility model example structure schematic diagram

Fig. 2 is a fundamental diagram of the present utility model

The utility model embodiment as shown in Figure 1, it is made up of frame 16, back flow roll 1,

deflector roll

13,14, pressure roller 3, last hopper 4, last material roller 2, scraper 10, feed chute 5; Back flow roll 1,

deflector roll

13,14, pressure roller 3, last material roller 2 are arranged on the frame 16 by bearing block, and last hopper 4 is arranged on material roller 2 belows, and it is other that scraper 10 is arranged on back flow roll 1, and feed chute 5 is arranged on the below of scraper 10; Be provided with the spacing dividing plate 8 of a liquid level in the last hopper 4, the spacing dividing plate 8 of liquid level will be gone up hopper 4 and be divided into material stock groove and flash groove, material stock groove and flash groove respectively with feed pipe 12 and discharge nozzle 9 UNICOMs, feed chute 5 and feed back pipe 11 UNICOMs; It is other that last material roller 2 is arranged on back flow roll 1, and horizontal range is 260 millimeters between last material roller 2 axle center to back flow roll 1 axle center.The paper feed direction of last material roller 2 is provided with a height-adjustable pressure roller 3, and pressure roller 3 is to regulate its height by a cylinder 6 and caging bolt 17; The spacing dividing plate 8 constant liquid levels of going up coating in the hopper 4 of liquid level, pressure roller 3 is used for controlling the material loading amount of coating, and the height of pressure roller 3 is low more, and the material loading amount is big more, otherwise more little; Height change with pressure roller 3 is accurately regulated the material loading amount, can reduce the capacity of returns of coating, reduces the coating cost, control coating effect; In addition, pressure roller 3 makes paper 7 S-shaped operation in process, makes the tension force of paper 7 be adjusted more evenly before coating.Last hopper 4 is provided with interlayer, and interlayer and hot-water line 15 UNICOMs pass through hot water, in order to serviceability temperature constant and maintenance coating.

Fundamental diagram of the present utility model as shown in Figure 2, the direction of arrow among the figure on the paper 7 are the direction of travel of paper 7, and the direction of arrow under feed pipe 12, discharge nozzle 9, the feed back pipe 11 is the flow direction of coating.After paper 7 enters the utility model spreader,, depressed by pressure roller 3 through

deflector roll

13,14 guiding, contact with last material roller 2, the coating that last material roller 2 will be gone up in the hopper 4 is coated on the paper 7, and paper 7 leaves the utility model spreader through back flow roll 1 other scraper 10, back flow roll 1, finishes coating; Scraper 10 scrapes paper 7 unnecessary coating, and the coating after scraping falls into feed chute 5, discharges through feed back pipe 11, carries out utilizing after the filtration treatment again; Coating enters hopper 4 from feed pipe 12, and the coating that exceeds the spacing dividing plate 8 of liquid level flows out from discharge nozzle 9.

Consider the space that spreader is shared, horizontal range is best at the 260-500 millimeter between last material roller 2 axle center to back flow roll 1 axle center.

Claims

1, a kind of Scraper applicator, it is made up of frame (16), back flow roll (1), last hopper (4), last material roller (2), scraper (10); Back flow roll (1), last hopper (4), last material roller (2), scraper (10) are arranged on the frame (16), last hopper (4) is arranged on material roller (2) below, it is other that scraper (10) is arranged on back flow roll (1), it is characterized in that: go up material roller (2) and be arranged on back flow roll (1) side, horizontal range is greater than 260 millimeters between last material roller (2) axle center to back flow roll (1) axle center.

2, Scraper applicator as claimed in claim 1 is characterized in that: upward horizontal range is the 260-500 millimeter between material roller (2) axle center to back flow roll (1) axle center.

3, Scraper applicator as claimed in claim 1 or 2 is characterized in that: the paper feed direction that goes up material roller (2) is provided with a height-adjustable pressure roller (3).

4, Scraper applicator as claimed in claim 1 or 2 is characterized in that: the below of scraper (10) is provided with feed chute (5), feed chute (5) and feed back pipe (11) UNICOM.

5, Scraper applicator as claimed in claim 1 or 2, it is characterized in that: go up in the hopper (4) and be provided with the spacing dividing plate of a liquid level (8), the spacing dividing plate of liquid level (8) will be gone up hopper (4) and be divided into material stock groove and flash groove, material stock groove and flash groove respectively with feed pipe (12) and discharge nozzle (9) UNICOM.