Wet paper slitting and recycling equipment of rotary screen paper machine

Abstract

The utility model discloses wet paper slitting and recycling equipment for a cylinder paper machine, and belongs to the technical field of water purifiers. Comprising a rack, a former, a mesh cage, a mesh cage water receiving tank, two width-adjustable water needle devices, a width adjusting device, coarse cotton cloth, a couch roll, a water suction box, a return roll, two press rolls, a Teflon roll, a broke groove and a drying cylinder. A mesh cage water receiving tank is arranged at the lower end of the rack, a mesh cage is rotationally arranged on the rack, and the forming device is located on one side of the mesh cage; the width-adjustable water needle devices are arranged on the machine frame through the width adjusting device and located on the two sides of the upper end of the mesh cage. The press roll is arranged on the forward rotating side of the return roll, and coarse cotton cloth is arranged between the return roll and the press roll; the couch roll is tangent to the mesh cage, and the water suction box is located between the couch roll and the return roll. A broken paper groove is formed in the lower end of the Teflon roller arranged between the drying cylinder and the pressing roller. According to the utility model, coarse cotton cloth blockage is avoided, and the fabric width can be quickly adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to paper machine technical field especially relates to a round net paper machine wet paper slitting recovery equipment. BACKGROUND

[0002] At present, the paper machine in the industry is divided into round net paper machine, long net paper machine, inclined net paper machine, long round net hybrid paper machine and several major categories.

[0003] The round net paper machine is widely used, has less investment and flexible product species, is widely used especially in the field of special paper, and the principle is as follows: good slurry is sent to the pulp distributor through the pumping system, is sprayed on the round net cage after being leveled, the surface of the net cage has a layer of metal net for dewatering and retaining paper pulp fibers, the net cage continues to rotate into the felt and couch roll area to be extruded to continue dewatering and be transferred from the stainless steel net of the net cage to the felt to continue the reverse vacuum dewatering and drying into paper products in the drying cylinder.

[0004] However, it is very difficult to change the width during the production process, mainly by splicing the whole width of the finished paper roll, and then slitting different small widths to meet the different width requirements of customers, and when the width is unreasonable, a lot of edge materials will be wasted.

[0005] The conventional scheme for changing the width of the wet paper slitting edge of the round net paper machine is to block the dewatering area of the two side edges of the forming round net, such as one is to seal the side edge of the net cage with adhesive tape, and the other is to block the mesh with paint to prevent the pulp from remaining on the net surface to achieve different width modification, but this scheme cannot be applied to products with frequent and frequent width changes, and after changing the width, the paper edge is not neat, and the width change will cause the performance of the paper to change greatly.

[0006] Compared with the traditional long net paper machine and inclined net paper machine, it is relatively difficult to change the width of the wet paper slitting edge of the conventional round net paper machine.

[0007] However, the round net paper machine does not have a long woven forming net, so it cannot achieve this function, and the conventional method is to cut the wet paper with a water needle after transferring it to the felt, which will cause the felt to be blocked and reduce the service life of the felt.

[0008] Therefore, a round net paper machine wet paper slitting recovery equipment is needed to solve the above technical problems. Utility model content

[0009] The utility model aims at providing a round net paper machine wet paper slitting recovery equipment to solve the above technical problems.

[0010] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a wet paper slitting and recycling equipment of a cylinder paper machine, including frame, former, wire cage, wire cage water receiving groove, two door width adjustable water needle devices, door width adjusting device, felt, couch roll, water suction tank, reversing roll, two press rolls, teflon roll, waste paper tank and drying cylinder, the lower end of frame is provided with wire cage water receiving groove, wire cage is rotatably arranged on the frame, and the lower end of wire cage is located in the wire cage water receiving groove, the former is located on one side of the wire cage, the door width adjustable water needle device is arranged on the frame through the door width adjusting device, and the door width adjustable water needle device is located on both sides of the upper end of the wire cage, the reversing roll is rotatably arranged on the side of the frame far from the former, the press roll is arranged on the side of the reversing roll rotation forward, and the felt is arranged between the reversing roll and the press roll, the couch roll is located in the felt, and the couch roll is tangent to the wire cage, the water suction tank is located between the couch roll and the reversing roll, the drying cylinder is located on the side of the press roll far from the reversing roll, and the drying cylinder and the press roll are provided with the lower end of the teflon roll.

[0011] The door width adjustable water needle device is arranged between the wire cage and the couch roll, and the door width adjustable water needle device comprises a nozzle, a flow adjusting switch, a universal joint and a moving nut, the upper end of the universal joint is provided with the moving nut, the lower end of the universal joint is provided with the flow adjusting switch, and the nozzle is arranged at the lower end of the flow adjusting switch.

[0012] The door width adjusting device comprises a door width adjusting hand wheel, a lead screw and a reverse lead screw, one end of the lead screw is provided with the door width adjusting hand wheel, the other end of the lead screw is connected with the reverse lead screw, and the two ends of the lead screw and the reverse lead screw are arranged on the upper end of the frame, and the moving nut is movably arranged on the lead screw and the reverse lead screw.

[0013] The felt is arranged around the couch roll, the water suction tank, the reversing roll and the two press rolls, the felt and the couch roll are pressed on the wire cage, and the density of the felt is greater than that of the paper sheet on the surface of the wire cage.

[0014] The two sides of the wire cage are rotatably arranged on the frame through wire cage bearing seats, and the wire cage is a stainless steel mesh structure.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a net cage double -sided synchronous door width adjustable water needle device, door width adjusting device and press after wet paper transfer matching use, solved the existing cylinder paper machine wet paper cutting edge scheme in the deficiency, such as pasting adhesive tape and paint plugging on the cylinder, and the width change is inconvenient, and the width adjustment causes the paper longitudinal and transverse strength ratio high problem, the width adjustable water needle device can be completed on the net cage cutting, avoided the water needle cutting on the wool cloth, long -term caused wool cloth blockage, produced another paper disease problem, made wool cloth service life reduction and so on problem, the door width adjusting device can quickly adjust the door width, and the whole slurry flow does not need to adjust, convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a front view of a cylinder paper machine wet paper cutting recovery equipment;

[0018] Fig. 2 It is a side view of a cylinder paper machine wet paper cutting recovery equipment;

[0019] Fig. 3 It is a schematic diagram of the width adjustable water needle device;

[0020] In the drawing: 1, former;2, net cage;21, net cage bearing seat;3, width adjustable water needle device;31, nozzle;32, flow regulating switch;33, universal joint;34, moving nut;4, rack;5, net cage water receiving tank;6, door width adjusting device;61, door width adjusting hand wheel;62, positive toothed screw;63, reverse toothed screw;7, drying cylinder;8, broke paper tank;9, Teflon roller;10, wool cloth;11, couch roll;12, water suction tank;13, reversing roll;14, press roll. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figs. 1-3The utility model provides a technical scheme: a wet paper cutting and recycling equipment of cylinder paper machine, including frame 4, former 1, net cage 2, net cage water receiving groove 5, two door width adjustable water needle device 3, door width adjusting device 6, felt 10, couch roll 11, water suction tank 12, back roller 13, two press rolls 14, teflon roll 9, waste paper groove 8 and drying cylinder 7, the lower end of frame 4 is provided with net cage water receiving groove 5, and the frame 4 is provided with net cage 2 rotationally, and the lower end of net cage 2 is located in net cage water receiving groove 5, the former 1 is located at one side of net cage 2, the door width adjustable water needle device 3 is set up on the frame 4 through door width adjusting device 6, and the door width adjustable water needle device 3 is located at the both sides of the upper end of net cage 2, the back roller 13 rotationally is set up on the frame 4 and is away from one side of former 1, and the press roll 14 is set up on the side of back roller 13 rotationally forward, and the felt 10 is set between back roller 13 and press roll 14, the couch roll 11 is located in felt 10, and the couch roll 11 is tangent to net cage 2, the water suction tank 12 is located between couch roll 11 and back roller 13, the drying cylinder 7 is located at the side of press roll 14 and is away from back roller 13, and the drying cylinder 7 and press roll 14 are provided with the lower end of teflon roll 9 and waste paper groove 8.

[0023] The both sides of net cage 2 are rotationally set on frame 4 through net cage bearing seat 21, and net cage 2 is the stainless steel net structure, and the moisture can flow down from the net hole, and the wet paper embryo is left.

[0024] Further, the length and width of the net cage water receiving groove 5 are not less than the length and width of the cross section of the net cage 2, so that the net cage water receiving groove 5 has enough space to make the lower end of the net cage 2 rotate in the net cage water receiving groove 5, and the moisture on the net cage 2 can fall into the net cage water receiving groove 5.

[0025] The former 1 is arranged close to the net cage 2, and the former 1 is used in cooperation with an external pump to send the prepared paper pulp to the former 1 through the external pump, and the former 1 is used for uniforming and flow sending the sprayed pulp to the net cage 2.

[0026] The door width adjustable water needle device 3 is set between the net cage 2 and the couch roll 11, and the door width adjustable water needle device 3 comprises a nozzle 31, a flow adjusting switch 32, a universal joint 33 and a moving nut 34, the upper end of the universal joint 33 is provided with the moving nut 34, the lower end of the universal joint 33 is provided with the flow adjusting switch 32, and the nozzle 31 is arranged at the lower end of the flow adjusting switch 32.

[0027] The universal joint 33 can adjust the water spraying angle of the nozzle 31 at will, so that the wet paper edge can be cut neatly, the wet paper on the net cage 2 can be cut, the problem that the wet paper of the cylinder paper machine is cut by the water needle on the felt is solved, the problems of felt blockage and paper quality caused by the use of the felt are reduced, and the service life of the felt is prolonged.

[0028] The door width adjusting device 6 comprises a door width adjusting hand wheel 61, a positive toothed screw 62 and a negative toothed screw 63; the positive toothed screw 62 is provided with the door width adjusting hand wheel 61 at one end, the other end of the positive toothed screw 62 is connected with the negative toothed screw 63, and the two ends of the positive toothed screw 62 and the negative toothed screw 63 are arranged on the upper end of the frame 4; the moving nut 34 is movably arranged on the positive toothed screw 62 and the negative toothed screw 63.

[0029] In use, the door width adjusting hand wheel 61 is rotated to rotate the positive toothed screw 62 and the negative toothed screw 63, and the moving nut 34 on the screw drives the nozzle 31 to move synchronously left and right, and the door width can be accurately adjusted according to the scale on the door width adjusting hand wheel 61.

[0030] After the paper pulp is sprayed onto the wire mesh 2 through the former 1, the paper pulp is quickly dewatered through the mesh holes of the wire mesh 2 to form a wet paper embryo, and before the wet paper embryo is transferred into the felt 10 and the couch roll 11 for extrusion, the door width and the angle of the wet paper embryo can be adjusted by the door width adjustable water needle device 3 and the door width adjusting device 6, so that the wet paper embryo is cut by the low-pressure water needle, and the excess water enters the wire mesh water collecting groove 5, so that the felt 10 does not need to be cut, and the door width is changed. Especially, the problem that the long-fiber paper cannot be continuously cut on the felt 10 is avoided.

[0031] The door width adjusting device 6 can make the wire mesh 2 no longer use adhesive tape or paint to block the corresponding width of the side of the wire mesh, so that the blocked area of the wire mesh cannot hold the pulp, thereby achieving the method of adjusting the door width, avoiding the problems of slow door width adjustment, the need to reduce the speed or stop the machine to cause waste, and poor performance of the paper in the longitudinal and transverse directions at a small door width.

[0032] The felt 10 is arranged around the couch roll 11, the water suction box 12, the reversing roll 13 and the two press rolls 14, and the felt 10 and the couch roll 11 are pressed on the wire mesh 2. The wet paper embryo is attached to the stainless steel wire mesh 2 and rotates into the position of the felt 10 and the couch roll 11.

[0033] The density of the felt 10 is greater than that of the paper on the surface of the wire mesh 2, and after being extruded by the couch roll 11, the wet paper is transferred to the felt 10.

[0034] The nozzle 31 cuts the wet paper web, and the cut paper web is formed on the wire cage 2, the whole wet paper passes through the felt 10 and the couch roll 11 to be squeezed and dehydrated again, the wet paper is adsorbed by the high-density felt 10 and is transferred from the wire cage 2, continues to run backward, passes through the suction box 12 to be further dehydrated, and then passes through the reversing roll 13 to continue to run backward to the press roll 14, and is squeezed by the upper and lower press rolls 14 to remove most of the free water. The wet paper is separated from the wet paper edge by the Teflon roll 9, and the cut edges of the wet paper on both sides fall into the broke tank 8. The wet paper pulp in the broke tank 8 is mixed and stirred by the agitator and the dilution white water, and then is added to the former sizing system by the pump system to continue to be sized to the former 1, so as to realize the circulation. The large-width wet paper removed from the wet paper edge enters the rear drying cylinder 7 to continue to be dried into paper, and then is wound into a finished product.

[0035] In use, the speed of the Teflon roll 9 can be slightly faster than the running speed of the paper to normally separate the wet paper edge, and the speed of the Teflon roll 9 can be slower than the running speed of the paper or synchronous to cause the paper edge to collapse.

[0036] The equipment of the utility model is suitable for single-cylinder paper machines, double-cylinder paper machines or multi-cylinder paper machines, and the width can be quickly adjusted, especially in small-batch multi-variety order production. The obvious energy consumption, material saving and labor reduction are realized. The product quality problems caused by the felt water needle cutting or the blocking of the wire cage mesh in the past are avoided.

[0037] The utility model is more suitable for long-fiber special paper, and the width adjusting effect is better. Only the water outlet width of the nozzle 31, the water quantity and the angle need to be changed, and the formed paper is opened to form a paper seam.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wet paper slitting and recycling device for a rotary papermaking machine, characterized in that: The invention comprises a frame (4), a former (1), a mesh cage (2), a mesh cage water receiving trough (5), two width-adjustable water needle devices (3), a width adjusting device (6), a felt cloth (10), a couch roll (11), a water suction box (12), a return roll (13), two pressing rolls (14), a Teflon roll (9), a damaged paper trough (8) and a drying cylinder (7); a mesh cage water receiving trough (5) is provided at the lower end of the frame (4); a mesh cage (2) is rotatably provided on the frame (4), and the lower end of the mesh cage (2) is located in the mesh cage water receiving trough (5); the former (1) is located on one side of the mesh cage (2); the width-adjustable water needle device (3) is provided on the frame (4) via the width adjusting device (6); the width-adjustable water needle device (3) is provided on the frame (4) via the width adjusting device (6); The device (3) is located on both sides of the upper end of the mesh cage (2); the return roller (13) is rotatably arranged on the side of the frame (4) away from the former (1); the pressing roller (14) is arranged on the side of the return roller (13) rotating forward, and a felt cloth (10) is arranged between the return roller (13) and the pressing roller (14); the couch roller (11) is located in the felt cloth (10), and the couch roller (11) and the mesh cage (2) are tangent; the water suction box (12) is located between the couch roller (11) and the return roller (13); the drying cylinder (7) is located on the side of the pressing roller (14) away from the return roller (13), and a Teflon roller (9) is arranged between the drying cylinder (7) and the pressing roller (14), and a damaged paper groove (8) is arranged at the lower end.

2. The wet paper slitting and recycling equipment for a cylinder papermaking machine according to claim 1, characterized in that: The width-adjustable water needle device (3) is arranged between the mesh cage (2) and the couch roller (11), and comprises a nozzle (31), a flow regulating switch (32), a universal joint (33), and a movable nut (34); the movable nut (34) is arranged at the upper end of the universal joint (33), the flow regulating switch (32) is arranged at the lower end of the universal joint (33), and the nozzle (31) is arranged at the lower end of the flow regulating switch (32).

3. The wet paper slitting and recycling equipment for a cylinder papermaking machine according to claim 2, characterized in that: The door width adjustment device (6) comprises a door width adjustment hand wheel (61), a positive thread screw (62) and a negative thread screw (63); one end of the positive thread screw (62) is provided with a door width adjustment hand wheel (61), the other end of the positive thread screw (62) is connected to the negative thread screw (63), and both ends of the positive thread screw (62) and the negative thread screw (63) are provided on the upper end of the frame (4); the movable nut (34) is movably provided on the positive thread screw (62) and the negative thread screw (63).

4. The wet paper slitting and recycling equipment for a cylinder papermaking machine according to claim 1, characterized in that: The felt (10) is arranged around a couch roller (11), a water suction box (12), a return roller (13) and two pressing rollers (14); the felt (10) and the couch roller (11) are pressed onto the mesh cage (2); the density of the felt (10) is greater than that of the paper sheet on the surface of the mesh cage (2).

5. The wet paper slitting and recycling equipment for a cylinder papermaking machine according to claim 1, characterized in that: Both sides of the mesh cage (2) are rotatably arranged on the frame (4) via mesh cage bearing seats (21), and the mesh cage (2) is a stainless steel mesh structure.

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