Surface dehydration device for fourdrinier red paperboard production

Abstract

The utility model belongs to the technical field of fourdrinier paper machines, and particularly discloses a surface dewatering device for fourdrinier paper machine red paperboard production, which comprises a collecting frame, side plates are mounted on two sides of the collecting frame through bolts, paperboard is conveyed above the collecting frame, two spreading rollers are symmetrically mounted between the two side plates, and the spreading rollers are connected with the collecting frame through bolts. Scraping plates are installed behind the two stretching rollers, the two scraping plates are symmetrically arranged, and a pushing mechanism is arranged on the surface of the side plate. Under the cooperation of all the mechanisms, the production cost of card paper can be reduced, it can be guaranteed that paper faces are fine and clean, and production efficiency and product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to long net paper machine technical field, specifically relates to a long net paper machine red card paper production surface dehydration device. BACKGROUND

[0002] Long net paper machine is the equipment that is widely used in papermaking industry, and its main feature is to have a conveying belt type forming part formed by endless net, and this kind of paper machine is widely used due to its high production capacity and good product quality control.

[0003] The existing long net paper machine red card paper production surface dehydration, the production cost of card paper is higher, and using flat roller as paper guide roll can increase the probability of paper disease, and the production efficiency and product quality cannot be guaranteed, and the height adjustment of the squeegee is manually adjusted, which is difficult to control in the working process.

[0004] Novel practical content

[0005] The utility model provides a long net paper machine red card paper production surface dehydration device to solve the shortcomings in the prior art.

[0006] To achieve the above purpose, the utility model provides a long net paper machine red card paper production surface dehydration device, which comprises a collecting frame, two side plates are installed on the two sides of the collecting frame through bolts, a card paper is transmitted above the collecting frame, two stretch rollers are symmetrically installed between the two side plates, a scraper is installed behind each of the two stretch rollers, the two scrapers are symmetrically arranged, the card paper first passes between the two stretch rollers, then the card paper passes between the two scrapers, a pushing mechanism is arranged on the surface of the side plate, and the pushing mechanism corresponds to the two scrapers.

[0007] Preferably, the pushing mechanism comprises a first sliding groove, the first sliding groove is arranged on the surface of the side plate, a second sliding groove and a third sliding groove are symmetrically arranged above and below the first sliding groove, the third sliding groove is installed in front of the second sliding groove, a first pushing block is slidably installed in the first sliding groove, a second pushing block is slidably installed in the second sliding groove, a third pushing block is slidably installed in the third sliding groove, a first connecting rod is installed between the first pushing block and the two second pushing blocks through a rotating shaft, a second connecting rod is installed between the second pushing block and the third pushing block through a rotating shaft, and the surfaces of the two third pushing blocks are respectively fixedly connected with the two scrapers.

[0008] Preferably, a protruding block is fixedly installed behind the first pushing block, a cylinder is arranged behind the first sliding groove, and the output end of the cylinder is connected to the protruding block.

[0009] Preferably, the scraper is arranged in an inclined manner, and an end surface of the scraper close to the card paper is provided with a circular arc scraping head.

[0010] Preferably, the inside of the collecting frame is provided with a liquid collecting bin, and a filter screen is mounted at an opening of the liquid collecting bin and is located directly below the stretching roller and the scraper.

[0011] Compared with the prior art, the novel utility model has the following beneficial effects:

[0012] The surface of the card paper is coated with needle pulp, broadleaf pulp, semi-chemical pine needle pulp, etc., so that the paper surface is delicate and clean, and the semi-chemical pine needle pulp is cheap, effectively reducing the production cost; the card paper passes through the stretching roller and the scraper in sequence, which can prevent wrinkles from being generated during the running of the card paper, ensure the flatness and quality of the card paper, and thus improve the production efficiency and product quality; finally, under the action of the pushing mechanism, the two scrapers can be simultaneously pushed towards the card paper, the spacing between the two scrapers is quickly and conveniently adjusted, and the scraper can be quickly matched with the card paper. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A schematic diagram of the overall structure of a surface dehydration device for red card paper production of a long net paper machine is provided for the novel utility model;

[0014] Figure 2 Another schematic diagram of the overall structure of a surface dehydration device for red card paper production of a long net paper machine is provided for the novel utility model;

[0015] Figure 3 A schematic diagram of the upper part of a collecting frame of a surface dehydration device for red card paper production of a long net paper machine is provided for the novel utility model;

[0016] Figure 4 A surface dehydration device for red card paper production of a long net paper machine is provided for the novel utility model Figure 2 An enlarged view of position A in the middle;

[0017] Figure 5 A surface dehydration device for red card paper production of a long net paper machine is provided for the novel utility model Figure 3 An enlarged view of position B in the middle.

[0018] In the drawings: 1, collecting frame; 2, side plate; 3, card paper; 4, stretching roller; 5, filter screen; 6, scraper; 7, circular arc scraping head; 8, pushing mechanism; 9, first sliding groove; 10, second sliding groove; 11, third sliding groove; 12, first pushing block; 13, second pushing block; 14, third pushing block; 15, first connecting rod; 16, second connecting rod; 17, protruding block; 18, air cylinder. DETAILED DESCRIPTION

[0019] To better understand the above-mentioned objectives, features, and advantages of this invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 - Figure 5 The device shown is a surface dewatering device for producing red cardboard on a long wire paper machine. It includes a collection frame 1, with side plates 2 bolted to both sides of the collection frame 1. Cardboard 3 is conveyed above the collection frame 1. Two spreading rollers 4 are symmetrically installed between the two side plates 2. Scrapers 6 are installed behind each of the two spreading rollers 4. The cardboard 3 passes through the space between the two spreading rollers 4 first, and then through the space between the two scrapers 6. A pushing mechanism 8 is provided on the surface of the side plates 2. The pushing mechanism 8 corresponds to the two scrapers 6. First, the surface of the cardboard 3 is coated with softwood pulp, hardwood pulp, semi-chemical pine softwood pulp, etc. Then, the cardboard 3 passes through the spreading rollers 4 and the scrapers 6 in sequence. Under the action of the pushing mechanism 8, the two scrapers 6 can be pushed towards the cardboard 3 at the same time. The distance between the two scrapers 6 can be adjusted quickly and conveniently, and the scrapers 6 and the cardboard 3 can be quickly matched.

[0021] The pushing mechanism 8 includes a first slide groove 9, which is formed on the surface of the side plate 2. A second slide groove 10 and a third slide groove 11 are symmetrically formed above and below the first slide groove 9. The third slide groove 11 is installed in front of the second slide groove 10. A first pushing block 12 is slidably installed inside the first slide groove 9, a second pushing block 13 is slidably installed inside the second slide groove 10, and a third pushing block 14 is slidably installed inside the third slide groove 11. A first connecting rod 15 is connected between the first pushing block 12 and the two second pushing blocks 13 via a pivot. A second connecting rod 16 is mounted between the blocks 14 via a pivot. The surfaces of the two third push blocks 14 are fixedly connected to the two scrapers 6 respectively. When the first push block 12 moves forward in the first slide groove 9, the first connecting rod 15 will drive the second push block 13 to move forward in the second slide groove 10. At the same time, the second connecting rod 16 will drive the third push block 14 to move forward in the third slide groove 11. Since the second slide groove 10 and the third slide groove 11 are set in an inclined shape, the two third push blocks 14 will move towards the first slide groove 9 simultaneously during the pushing process.

[0022] A protruding block 17 is fixedly installed behind the first push block 12, and a cylinder 18 is provided behind the first slide groove 9. The output end of the cylinder 18 is connected to the protruding block 17. The cylinder 18 can drive the first push block 12 to move inside the first slide groove 9, and has a control function.

[0023] The scraper 6 is arranged in an inclined manner, the inclined scraper 6 can better fit the card paper 3, reduce the gap between the scraper 6 and the card paper 3, and the end face of the scraper 6 close to the card paper 3 is provided with a circular arc scraper head 7, which can reduce the damage of the scraper 6 to the surface of the card paper 3.

[0024] The inside of the collecting frame 1 is provided with a liquid collecting bin, and a filter screen 5 is installed at the opening of the liquid collecting bin. The filter screen 5 is located directly below the stretching roller 4 and the scraper 6. The liquid scraped off by the scraper 6 can flow into the liquid collecting bin through the filter screen 5.

[0025] Working principle: first, the card paper 3 passes through the stretching roller 4 and the scraper 6 in turn, under the action of the pushing mechanism 8, the cylinder 18 can drive the first pushing block 12 to move forward in the first sliding groove 9, the first connecting rod 15 will drive the second pushing block 13 to move forward to the second sliding groove 10, at the same time, the second connecting rod 16 will drive the third pushing block 14 to move forward to the third sliding groove 11, and because the second sliding groove 10 and the third sliding groove 11 are arranged in an inclined manner, during the pushing process, the two third pushing blocks 14 will move to the direction of the first sliding groove 9 at the same time, so that the two scrapers 6 push the card paper 3 at the same time, the spacing between the two scrapers 6 is adjusted quickly and conveniently, and the scraper 6 can be quickly matched with the card paper 3, and finally in the process of transmitting the card paper 3, the scraper 6 can scrape off the excess liquid on the surface of the card paper 3, which has a preliminary dehydration effect on the card paper 3.

[0026] The above shows and describes the basic principles, main features and advantages of the present practical new type. It should be understood by those skilled in the art that the present practical new type is not limited to the above examples, and the above examples and descriptions in the specification are only the principles of the present practical new type. Without departing from the spirit and scope of the present practical new type, various changes and improvements can be made to the present practical new type, and these changes and improvements all fall within the scope of the present practical new type. The scope of protection required by the present practical new type is defined by the appended claims and their equivalents.

Claims

1. A surface dewatering device for long line paper machine red top production, comprising a collecting frame (1), characterized in that, The collecting frame (1) is provided with side plates (2) on both sides through bolt mounting, the upper part of the collecting frame (1) is transmitted with a jammed paper (3), two stretch rollers (4) are symmetrically mounted between the two side plates (2), a scraper (6) is mounted behind each of the two stretch rollers (4), the two scrapers (6) are symmetrically arranged, the jammed paper (3) first passes between the two stretch rollers (4), then the jammed paper (3) passes between the two scrapers (6), the surface of the side plate (2) is provided with a pushing mechanism (8), and the pushing mechanism (8) corresponds to the two scrapers (6).

2. A surface dewatering device for long line paper machine red top production according to claim 1, characterized in that, The pushing mechanism (8) comprises a first sliding groove (9) which is formed in the surface of the side plate (2), a second sliding groove (10) and a third sliding groove (11) are symmetrically formed above and below the first sliding groove (9), the third sliding groove (11) is installed in front of the second sliding groove (10), a first pushing block (12) is slidably installed in the first sliding groove (9), a second pushing block (13) is slidably installed in the second sliding groove (10), a third pushing block (14) is slidably installed in the third sliding groove (11), a first connecting rod (15) is installed between the first pushing block (12) and the two second pushing blocks (13) through a rotating shaft, a second connecting rod (16) is installed between the second pushing block (13) and the third pushing block (14) through a rotating shaft, and the surfaces of the two third pushing blocks (14) are respectively fixedly connected with the two scrapers (6).

3. A surface dewatering device for long line paper machine red top production according to claim 2, characterized in that, A protruding block (17) is fixedly installed behind the first pushing block (12), a cylinder (18) is arranged behind the first sliding groove (9), and the output end of the cylinder (18) is connected to the protruding block (17).

4. A surface dewatering device for long line paper machine red top paper production according to claim 1, characterized in that, The scraper (6) is arranged in an inclined manner, and the end face of the scraper (6) close to the jammed paper (3) is provided with a circular arc scraping head (7).

5. A surface dewatering device for long line paper machine red top paper production according to claim 1, characterized in that, A liquid collecting bin is arranged in the collecting frame (1), a filter screen (5) is mounted at the opening of the liquid collecting bin, and the filter screen (5) is located directly below the stretch roller (4) and the scraper (6).

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