CN212688558U - Wire section forming mechanism of paper machine - Google Patents

Abstract

The utility model relates to a net part forming mechanism of a paper machine, which comprises a frame, a transmission component is arranged on the frame, endless net cloth is laid on the transmission component, the inner side of the mesh cloth is provided with a plurality of vacuum pumps which are pressed against the inner surface of the upper part of the mesh cloth along the feeding direction, a water receiving tank is arranged below the vacuum pump, the water receiving tank is fixed on the frame, a mounting frame is arranged above the mesh along the width direction, the mounting frame is fixed on the frame, the top of the mounting frame is connected with two mounting blocks in a sliding way along the width direction, the mounting frame is connected with a screw rod in a rotating way along the width direction, one end of the screw rod penetrates through the side wall of the mounting frame, both ends of the screw rod are respectively provided with a positive thread and a negative thread, the two mounting blocks are respectively connected with both ends of the screw rod in a threaded way, a high-pressure nozzle is fixed on the mounting block, the water inlet end of the high-pressure nozzle is connected with a flexible water pipe, and the water outlet end of the high-pressure nozzle faces towards the mesh. The utility model discloses have the effect that can keep the stock production width.

Description

Wire section forming mechanism of paper machine

Technical Field

The utility model belongs to the technical field of papermaking equipment's technique and specifically relates to a wire section forming mechanism of paper machine is related to.

Background

Paper machines are currently mainly divided into three types: fourdrinier, cylinder and gap machines, of which fourdrinier is the most widely used, and has the advantages of high production efficiency, high yield, good product quality and easy control.

The existing fourdrinier paper machine structure sequentially comprises a pulp flowing box, a net part, a pressing part, a drying part, a calendaring part, a paper winder and a transmission part, wherein the net part is an important part for draining and forming slurry, for example, fourdrinier paper machine screen cloth disclosed by the application number CN201520775882.9, the fourdrinier paper machine structure comprises a forming net, a breast roll, a forming plate, a table roll, a dewatering plate, a wet vacuum box, a dry vacuum box, a finishing roll and a couch roll are sequentially arranged along the upper surface of the forming net, the net driving roll is arranged at the right lower end of the forming net, a guide roll, a stretching roll and a tension roll are arranged on the lower surface of the forming net, and white water trays are arranged below the dewatering plate, the wet vacuum box and the dry vacuum box. Forming wire is also commonly referred to as screen cloth.

The above prior art solutions have the following drawbacks: the width of the slurry on the mesh cloth can be changed after the slurry is drained, the preset production width cannot be accurately kept, and the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a wire section forming mechanism of paper machine has the effect that can keep the paper stock production width.

The above object of the present invention can be achieved by the following technical solutions:

a net part forming mechanism of a paper machine comprises a rack, a transmission assembly is arranged on the rack, an endless net cloth is laid on the transmission assembly, a vacuum pump is arranged on the inner side of the net cloth and is abutted against the inner surface of the upper part of the net cloth, the vacuum pump is fixed on the rack, a plurality of vacuum pumps are arranged along the feeding direction, a water receiving tank is arranged below the vacuum pump and is fixed on the rack, a mounting frame is arranged above the net cloth along the width direction and is fixed on the rack, two mounting blocks are connected on the top of the mounting frame along the width direction in a sliding manner, a lead screw is rotatably connected on the mounting frame along the width direction, one end of the lead screw penetrates through the side wall of the mounting frame, the two ends of the lead screw are respectively provided with a positive thread and a reverse thread, the two mounting blocks are respectively, the distance between the high-pressure spray nozzle and the two sides of the mounting rack is the same, and the water outlet end of the high-pressure spray nozzle faces towards the mesh cloth.

Through adopting above-mentioned technical scheme, transmission assembly drives the screen cloth at feeding direction upward cyclic motion, and when the screen cloth drove the thick liquid through the vacuum pump, under pumping of vacuum pump, the thick liquid was dehydrated, and the water that deviates from in the thick liquid will flow into the water receiving tank down and collect, and the thick liquid after accomplishing the waterlogging caused by excessive rainfall will become the attached screen cloth surface of paper membrane. The flexible water pipe leads water to the high-pressure nozzle, water flow forms high-speed jet flow through the high-pressure nozzle, when the paper film passes through along with the screen cloth, the high-speed jet flow can carry out hydraulic cutting on the edge of the paper film, the paper film keeps equal width, subsequent processing is facilitated, and the product quality is improved. And through rotating the lead screw, still can make two installation pieces relative or opposite movement to adjust the interval between two high pressure shower nozzles, reach the purpose of control paper membrane cutting width, make its production that can be applicable to the paper membrane of different size width, have more the suitability.

The present invention may be further configured in a preferred embodiment as: a laser range finder is fixed on one of the mounting blocks, a baffle is fixed on the other mounting block, the baffle is parallel to the feeding direction, and the laser range finder is perpendicular to the baffle.

By adopting the technical scheme, when the distance between the mounting blocks is adjusted by the screw rod, the distance between the two mounting blocks can be accurately measured by the laser range finder. The baffle perpendicular to the laser range finder is matched with the laser range finder so that the laser range finder can accurately measure the distance between the two mounting blocks.

The present invention may be further configured in a preferred embodiment as: a hand wheel is fixed at one end of the screw rod penetrating out of the mounting rack.

By adopting the technical scheme, the hand wheel can more conveniently and laborsavingly rotate the screw rod, so that the distance adjustment between the mounting blocks is more convenient and laborsaving.

The present invention may be further configured in a preferred embodiment as: a first scraper blade is fixed on one side of the discharging direction of the rack along the width direction, the first scraper blade is abutted against the outer surface of the lower portion of the mesh cloth, a recovery tank is arranged below the first scraper blade, the recovery tank is fixed on the rack, and a discharge hole is formed in the recovery tank.

By adopting the technical scheme, after the paper film on the mesh cloth is cut, the middle part can be pulled by equipment in the next process to be separated from the mesh cloth, and the cut leftover material part can move along with the mesh cloth continuously and moves from the upper part of the mesh cloth to the lower part of the mesh cloth. And when the leftover bits were through first scraper blade, first scraper blade just can be scraped it from the screen cloth to make it fall into the accumulator tank, prevent that the leftover bits from piling up on the screen cloth, and can carry out recycle to it.

The present invention may be further configured in a preferred embodiment as: wear to be equipped with clean pipe on the lateral wall of accumulator, clean pipe is towards the discharge gate, and clean pipe wears out the accumulator lateral wall, is equipped with the filter screen in clean pipe.

Through adopting above-mentioned technical scheme, wear out one side connection water pipe of accumulator at clean pipe, wash by water in just can toward the accumulator through clean pipe, after leftover bits are scraped off the accumulator by first scraper blade, will become the thick liquids form again under the effect of rivers to along with rivers flow from the discharge gate, the clearance and the recovery of leftover bits in the accumulator of being convenient for.

The present invention may be further configured in a preferred embodiment as: the inner side of the mesh cloth is provided with a flushing pipe along the width direction, the flushing pipe is fixed on the rack, the flushing pipe is arranged in a hollow mode with one open end, the open end of the flushing pipe penetrates through the side wall of the rack, nozzles are evenly arranged on the flushing pipe along the length direction, and the nozzles face the inner surface of the lower portion of the mesh cloth.

Through adopting above-mentioned technical scheme, the screen cloth of each unit length is after the waterlogging caused by excessive rainfall of going on once, and its surface all can remain there is the fibre residue, causes the jam of screen cloth mesh for a long time easily, and the wash pipe can wash the screen cloth after accomplishing the waterlogging caused by excessive rainfall to the waterlogging caused by excessive rainfall next time of circulation. The side of the flushing pipe penetrating out of the rack is connected with the water pipe, when the mesh moves to the lower part from the upper half part, the flushing pipe can flush the mesh from the inside, fibers on the mesh are flushed down by water flow, and the fibers are prevented from blocking meshes.

The present invention may be further configured in a preferred embodiment as: the machine frame is rotatably connected with a brush roller along the width direction, bristles are axially fixed on the brush roller, the brush roller is located below the flushing pipe and abuts against the outer surface of the lower portion of the mesh cloth, and a motor used for driving the brush roller to rotate is arranged on the machine frame.

Through adopting above-mentioned technical scheme, under the drive of motor, the brush roller rotates, and the brush hair just can clean the lower surface of screen cloth at its pivoted in-process, cleans the screen cloth more fully under the cooperation of flushing pipe, has further reduced the fibre and has remained on the screen cloth.

The present invention may be further configured in a preferred embodiment as: a second scraper is fixed on the frame along the width direction and is abutted against the bristles.

Through adopting above-mentioned technical scheme, the back is scraped off to the fibre on the brush hair with the screen cloth, has a small amount of fibre to remain on the brush hair, and when the brush hair was through the second scraper blade, the second scraper blade just can clear up remaining fibre on the brush hair, prevents that the fibre from producing on the brush hair and remaining.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the paper film on the mesh cloth can be accurately cut, and the influence of leftover materials on accuracy is reduced;

2. the surface sizing material can be cleaned and recycled;

3. can clear up remaining fibre on the screen cloth, prevent that the screen cloth from blockking up.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic view of the internal structure of the embodiment;

FIG. 3 is a schematic structural view of the mounting bracket;

FIG. 4 is a schematic diagram of the internal details of the embodiment.

In the figure, 10, a frame; 11. a transmission assembly; 12. screen cloth; 13. a vacuum pump; 14. a water receiving tank; 20. a mounting frame; 21. mounting blocks; 22. a screw rod; 23. a high pressure spray head; 24. a flexible water pipe; 25. a laser range finder; 26. a baffle plate; 27. a hand wheel; 30. a first squeegee; 31. a recovery tank; 32. a discharge port; 33. cleaning the tube; 34. a flush tube; 35. a brush roller; 36. A motor; 37. a second squeegee.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a net portion forming mechanism of paper machine, including frame 10, be equipped with drive assembly 11 in frame 10, drive assembly 11 upper berth is equipped with endless screen cloth 12, is equipped with vacuum pump 13 in the inboard of screen cloth 12, and vacuum pump 13 butt is in the internal surface on screen cloth 12 upper portion, and vacuum pump 13 is fixed in frame 10, and vacuum pump 13 is equipped with a plurality of along feed direction, is equipped with water receiving tank 14 in vacuum pump 13's below, and water receiving tank 14 is fixed in frame 10. The transmission assembly 11 drives the mesh cloth 12 to rotate circularly, when slurry is conveyed onto the mesh cloth 12 along the feeding direction of the mesh cloth 12, the slurry moves along with the mesh cloth 12, when the slurry passes through the vacuum pump 13, the slurry is drained under the air suction of the vacuum pump 13, the drained water flows into the water receiving tank 14, and the slurry is changed into a paper film and attached to the mesh cloth 12 after the water drainage is completed.

Referring to fig. 2 and 3, a mounting frame 20 is disposed above the mesh cloth 12 in the width direction, and the mounting frame 20 includes two side plates and a top plate. The two side plates are respectively fixed on two sides of the frame 10, sliding grooves are formed in the top plate along the width direction, and two mounting blocks 21 are connected in the sliding grooves in a sliding mode. A screw rod 22 is rotatably connected to the mounting frame 20 along the width direction, one end of the screw rod 22 penetrates through the side wall of the mounting frame 20, and a hand wheel 27 is fixed to one end of the screw rod 22 penetrating through the mounting frame 20. Two ends of the screw rod 22 are respectively provided with a positive thread and a negative thread, and the two mounting blocks 21 are respectively in threaded connection with two ends of the screw rod 22. A high-pressure nozzle 23 is fixed on the mounting block 21, the water inlet end of the high-pressure nozzle 23 is connected with a flexible water pipe 24, the distance from the high-pressure nozzle 23 to the two sides of the mounting frame 20 is the same, and the water outlet end of the high-pressure nozzle 23 faces towards the mesh cloth 12. Water is injected into the high-pressure nozzle 23 through the flexible water pipe 24, and high-speed jet flow is formed through the high-pressure nozzle 23, so that the paper film on the screen cloth 12 can be cut, and the required width can be accurately cut. And the distance between the two mounting blocks 21 can be adjusted by rotating the screw rod 22 through the hand wheel 27, thereby adjusting the cutting width of the jet flow.

Referring to fig. 3, a laser rangefinder 25 is fixed to one of the mounting blocks 21, and a baffle 26 is fixed to the other mounting block 21, the baffle 26 being disposed parallel to the feeding direction, the laser rangefinder 25 being perpendicular to the baffle 26. The distance between the two mounting blocks 21 can be accurately measured by the laser distance measuring instrument 25, so that the adjustment of the distance between the mounting blocks 21 is more accurate.

Referring to fig. 2 and 4, a first scraper 30 is fixed on one side of the discharging direction of the frame 10 along the width direction, the first scraper 30 abuts against the outer surface of the lower part of the mesh cloth 12, and the first scraper 30 is made of a flexible material. A recovery tank 31 is arranged below the first scraper 30, the recovery tank 31 is fixed on the frame 10, and a discharge hole 32 is opened on the recovery tank 31. A cleaning pipe 33 is provided on the side wall of the recovery tank 31, the cleaning pipe 33 faces the discharge port 32, the cleaning pipe 33 penetrates the side wall of the recovery tank 31, and a strainer is provided in the cleaning pipe 33. After the paper film is cut, the cut leftover materials can continue to move along with the mesh cloth 12, when the cut leftover materials pass through the first scraping plate 30, the first scraping plate 30 can scrape the cut leftover materials from the mesh cloth 12 and enable the cut leftover materials to fall into the recovery groove 31, the leftover materials are prevented from being left on the mesh cloth 12, and the leftover materials can be recovered. The leftover material recovered in the recovery tank 31 is converted into slurry again by passing water through the cleaning pipe 33, and flows out from the discharge port 32.

Referring to fig. 2 and 4, the washing pipe 34 is provided inside the mesh cloth 12 in the width direction, and the washing pipe 34 is positioned above the recovery groove 31. The flushing pipe 34 is fixed on the frame 10, the flushing pipe 34 is a hollow device with one open end, the open end of the flushing pipe 34 penetrates through the side wall of the frame 10, and the flushing pipe 34 is uniformly provided with nozzles along the length direction, and the nozzles face the inner surface of the lower part of the mesh cloth 12. The flushing pipe 34 flushes the web 12 from the inside, and flushes the fibers remaining on the web 12 down into the recovery tank 31.

Referring to fig. 2 and 4, a brush roller 35 is rotatably connected to the frame 10 along the width direction, bristles are axially fixed to the brush roller 35, the brush roller 35 is located below the flushing pipe 34 and abuts against the outer surface of the lower portion of the mesh fabric 12, and a motor 36 for driving the brush roller 35 to rotate is provided on the frame 10. A second squeegee 37 is fixed to the frame 10 in the width direction, and the second squeegee 37 abuts on the brush. The brush roller 35 may cooperate with the flushing pipe 34 to clean the web 12 for more complete cleaning.

The implementation principle of the embodiment is as follows:

1. the transmission assembly 11 drives the mesh cloth 12 to move circularly in the feeding direction, when the mesh cloth 12 drives the slurry to pass through the vacuum pump 13, the slurry is dehydrated under the air exhaust of the vacuum pump 13, the water removed from the slurry flows downwards into the water receiving tank 14 to be collected, and the slurry after the dehydration is changed into a paper film attached to the surface of the mesh cloth 12.

2. Water flows into the high-pressure nozzle 23 through the flexible water pipe 24, water flow forms high-speed jet flow through the high-pressure nozzle 23, when the paper film passes through along with the screen cloth 12, the high-speed jet flow can carry out hydraulic cutting on the edge of the paper film, the paper film keeps equal width, subsequent processing is facilitated, and the product quality is improved. And through rotating the lead screw 22, can also make two installation pieces 21 move relatively or in opposite directions to adjust the interval between two high pressure shower nozzles 23, reach the purpose of controlling the paper membrane cutting width, make it can be suitable for the production of the paper membrane of different size width, have more suitability.

3. After the paper film on the mesh cloth 12 is cut, the leftover materials pass through the first scraping plate 30, the first scraping plate 30 can scrape the leftover materials from the mesh cloth 12 and enable the leftover materials to fall into the recycling groove 31, the leftover materials are prevented from being stacked on the mesh cloth 12, and the leftover materials can be recycled.

4. As the web 12 passes through the rinse tube 34 and the brush roller 35, the fibers remaining on the web 12 are cleaned and fall into the recovery tank 31.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a web portion forming mechanism of paper machine, which comprises a frame (10), be equipped with drive assembly (11) in frame (10), drive assembly (11) upper berth is equipped with endless screen cloth (12), be equipped with vacuum pump (13) in the inboard of screen cloth (12), vacuum pump (13) butt is in the internal surface on screen cloth (12) upper portion, vacuum pump (13) are fixed in frame (10), vacuum pump (13) are equipped with a plurality of along the direction of feed, be equipped with water receiving tank (14) in the below of vacuum pump (13), water receiving tank (14) are fixed in frame (10), its characterized in that: be equipped with mounting bracket (20) in screen cloth (12) top along width direction, mounting bracket (20) are fixed in frame (10), there are two installation pieces (21) at mounting bracket (20) top along width direction sliding connection, it is connected with lead screw (22) to rotate along width direction on mounting bracket (20), mounting bracket (20) lateral wall is worn out to lead screw (22) one of them end, lead screw (22) both ends are equipped with positive screw thread and back thread respectively, threaded connection is in the both ends of lead screw (22) respectively in two installation pieces (21), be fixed with high pressure nozzle (23) on installation piece (21), the end of intaking of high pressure nozzle (23) is connected with flexible water pipe (24), high pressure nozzle (23) are the same apart from the distance of mounting bracket (20) both sides, the water outlet end of high pressure nozzle (23) is towards screen cloth (.

2. A wire forming mechanism for a paper machine according to claim 1, characterized by: a laser range finder (25) is fixed on one of the mounting blocks (21), a baffle plate (26) is fixed on the other mounting block (21), the baffle plate (26) is arranged in parallel to the feeding direction, and the laser range finder (25) is perpendicular to the baffle plate (26).

3. A wire forming mechanism for a paper machine according to claim 1, characterized by: a hand wheel (27) is fixed at one end of the screw rod (22) penetrating through the mounting rack (20).

4. A wire forming mechanism for a paper machine according to claim 1, characterized by: a first scraper blade (30) is fixed on one side of the discharging direction of the rack (10) along the width direction, the first scraper blade (30) abuts against the outer surface of the lower portion of the screen cloth (12), a recovery groove (31) is arranged below the first scraper blade (30), the recovery groove (31) is fixed on the rack (10), and a discharging port (32) is formed in the recovery groove (31).

5. A wire forming mechanism for a paper machine according to claim 4, characterized in that: a cleaning pipe (33) penetrates through the side wall of the recovery tank (31), the cleaning pipe (33) faces the discharge port (32), the cleaning pipe (33) penetrates through the side wall of the recovery tank (31), and a filter screen is arranged in the cleaning pipe (33).

6. A wire forming mechanism for a paper machine according to claim 1, characterized by: the inner side of the mesh cloth (12) is provided with a flushing pipe (34) along the width direction, the flushing pipe (34) is fixed on the rack (10), the flushing pipe (34) is arranged in a hollow mode with one open end, the open end of the flushing pipe (34) penetrates through the side wall of the rack (10), nozzles are uniformly arranged on the flushing pipe (34) along the length direction, and the nozzles face the inner surface of the lower portion of the mesh cloth (12).

7. A wire forming mechanism for a paper machine according to claim 6, characterized by: the machine frame (10) is rotatably connected with a brush roller (35) along the width direction, bristles are axially fixed on the brush roller (35), the brush roller (35) is located below the flushing pipe (34) and abuts against the outer surface of the lower portion of the mesh cloth (12), and a motor (36) used for driving the brush roller (35) to rotate is arranged on the machine frame (10).

8. A wire forming mechanism for a paper machine according to claim 7, characterized by: a second scraper (37) is fixed to the frame (10) in the width direction, and the second scraper (37) abuts against the bristles.

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