CN2088118U - Paper-making machine - Google Patents

Abstract

The utility model discloses a paper-making machine, the project of the utility model joins and installs two or more long nets in a staggered way, the joining part has joining net roll groups which are composed of an upper pair of net rolls and a lower pair of net rolls which are pressed and connected together, and joining long nets are respectively wrap an upper roll or a lower roll to realize an upper joining net paper web shift to a lower joining net. Paper-supporting cloth wraps a counter pressure roll and presses tightly with the lower couch roll of the nearest long net machine through the counter pressure roll to realize composite paper web shifting to the cloth. The machine can realize more long nets vertical installation, making the paper-making machine has compact structure, short cloth travel range and small occupation area, and the utility model is fit for producing multi-layer composite paper and paperboards.

Description

Paper-making machine

The utility model belongs to paper machine, particularly makes the paper machine of multilayer composite paper or paperboard.

The shortcoming that " horizontally arranged multiple fourdrinier paper machine " that the inventor once patented (No. 87102984, Chinese patent) exists is that many directors net former one line is arranged, and floor space is big.Rely on a driving belt that drags that holds each board of paper felt double as, it is very long that the relation that the stroke of felt is arranged because of board has to drag, and seems clumsy.

The purpose of this utility model is in keeping " horizontally arranged multiple fourdrinier paper machine ", each board paper web is licked under the prerequisite of the advantage of moving and is rearranged multi-section former relative position, make the compact conformation of whole paper machine, floor space is little, and it is short, reliable, easy to operate to hold paper felt stroke.

Content of the present utility model is by the sheet forming device, hold paper felt, the drying device of one or more pairs of pressure roller and some drying cylinders or other form is according to sheet forming, squeezing, oven dry is installed in the paper machine of forming on the frame in proper order, the shaping of paper machine has at least two director's net formers to install relatively, hold paper felt below the fourdriner forming device, between two director's net formers and felt, there is one group of paper web to dock roller, butt joint roller group is by last, following two couch rolls and an anti-roll are formed, three roller successives press, a forming net holds top couch (roll) and is called net, forming net holds lower couch (roll) and is called down net, hold that paper felt holds anti-roll and from each to passing the pressure roller; The superficial density difference of three rollers of butt joint roller group, its difference is that the top couch (roll) superficial density is lower than lower couch (roll), the lower couch (roll) superficial density is less than or equal to anti-roll, as main drive roller, each rotating device is realized transmission by the friction that the crimping of borrowing between felt and forming net and forming net and the forming net between true roller in joint and the roller produces to complete machine by last group pressure roller.

Essential characteristic of the present utility model is that forming net is installed relatively.Can make board shorten the stroke that holds paper felt like this on arranged, just can shorten under the situation of two director's net formers butt joint approximately and the felt reciprocating stroke that fourdrinier wire is grown up to be a useful person isometric, save floor space, complete machine structure is also compact.

The utility model connects to the net forming paper machine with can not being subjected to former board numerical limitations, under the situation that two above fourdriner forming devices are arranged, third and fourth that set up, five versions that all adopt successive to interlock and connect down to more director's net formers, vertically arrange and be installed on the frame to first and second two directors net former top, wherein single sequence number fourdriner forming devices such as the 3rd, five, seven in first and second two directors net former down to the net former above, two sequence number fourdriner forming devices such as the 4th, six, eight last to the net former above.The 3rd forming net docks net with last, the 4th forming net docks with the 3rd forming net, platform forming nets such as later the 5th, six, seven, eight mode successive butt joint according to this, at each joint pair net roller group is arranged, to net roller group by upper and lower the net roller being formed of pressing mutually, upward net and little sequence number forming net are held down the net roller, big sequence number forming net holds the net roller, down net roller superficial density is higher than the net roller.In some cases for preventing that big sequence number forming net from producing the hanging phenomenon by being turned back in net roller place, third and fourth, five, six and each former of postorder on be equipped with the net roller of turning back, go up the net roller of turning back is installed in down after the net roller, down to the net roller with on the following net inner ring that docks that net is turned back between the roller suction flat box is arranged, dock down that forming net holds one down butt joint roller and thereafter one go up and dock roller or top couch (roll) perpendicular bisector arranged in dislocation mutually, make the following butt joint net between two rollers be in the support state to this online paper web.Paper machine of the present invention can also be set up one or more garden net former below felt, wherein the garden cylinder mould of first garden net former presses mutually with anti-roll in first and second director's net former butt joint roller group, second and third and Duo Tai garden cylinder mould all contrary felt line direction successive below the felt arrange and be positioned at it above hold by felt on pressure roller press mutually.Produce the hanging phenomenon when net being turned back for first director's net former of preventing to occur following, after the lower couch (roll) of aforementioned all kinds, have under one the net roller of turning back the net paper machine, under felt inner ring correspondence to net turn back the roller place have one turn back lower compression roller with down to net the roll-in of turning back lean on, below anti-roll and the felt between the lower compression roller of turning back, suction flat box is arranged.Can serve as down net turn back roller and lower compression roller with the last pressure roller of first pair of pressure roller and lower compression roller in some cases.Pressure roller in the utility model paper machine can adopt another patented technology " press device of paper-making machine " (Chinese patent of inventor ^88100618.1 _88103782.6).

The advantage of the utility model paper machine be successfully to solve the butt joint of many directors net former Structure Designing Problem, make many directors net former can be arranged vertically installation, saved the floor space of paper machine.Than the compact conformation of horizontally arranged multiple fourdrinier paper machine, the felt stroke is short.

Embodiments of the invention are as shown in drawings:

Fig. 1 is the complete machine schematic diagram of two director's net formers butt joint.

Fig. 1 a is the enlarged drawing of butt joint roller group among Fig. 1.

Fig. 2 is the wet end schematic diagram of many directors net former butt joint.

Fig. 2 a respectively docks net loaded paper web combining case schematic diagram among Fig. 2.

Fig. 3 is the wet end schematic diagram that a garden net butt joint is arranged.

To illustrated explanation in the accompanying drawing:

11 head boxs, 12 table rolls dock forming net, 14 suction flat boxs on 13,15 pulp rollers, 16 suction flat boxs, 17 times butt joint forming nets, 18 butt joint top couch (roll)s, 19 wite rolls, 110 tight net rollers, 111 forming table drip trays, 112 drip trays off the net, 113 butt joint lower couch (roll)s, 114 anti-rolls, 115 suction flat boxs, 116 band paper felt, 117 first squeezings, 118 second squeezings, 119 main presses, 120 paper webs, 121 drying cylinders 122 roller of turning back, on 21 to the net roller, 22 times to the net roller, 23 suction flat boxs, and 24 hold gauze, on 25 to the net roller of turning back, 26 suction flat boxs, 27 first pressure roller, 28 felt, No. 29 fourdrinier wires, 210 No. two fourdrinier wires, 211 No. three fourdrinier wires, 212 No. four fourdrinier wires, 31 garden cylinder moulds.

In conjunction with the accompanying drawings the utility model is illustrated:

By the paper machine of two fourdriniers butt joint as shown in Figure 1, omitted rack construction among the figure.This machine is made up of wet end, press section and oven dry portion.Wet end has two director's net formers.The fourdriner forming device is by head box 11, the forming table that some table rolls 12 are formed, last butt joint forming net 3 or following butt joint forming net 17, the suction flat box 14 under the forming table, online pulp roller 15, suction flat box 16 off the net, butt joint top couch (roll) 18 or butt joint lower couch (roll) 113, wite roll 19, tight net roller 110, forming table drip tray 111, drip tray 112 off the net is formed.Press section is by first squeezing, 117, the second squeezings 118, and main press 119 is formed, wherein main press 119 double as active drive rollers.Oven dry portion is made up of some drying cylinders 121.Characteristic of the present utility model is have paper web to dock the roller group between two director's net formers and the felt 116.Butt joint roller group is by butt joint top couch (roll) 18, and butt joint lower couch (roll) 113 and anti-roll 114 successives press composition.The fourdrinier wire that holds lower couch (roll) 113 is No. 1 machine, and what hold top couch (roll) 18 is No. 2 machines.Lower couch (roll) 113 top layer density are higher than top couch (roll) 18, anti-roll 114 top layer density are greater than or equal to the top layer density of lower couch (roll) 113, paper web can be licked by net 13 move to net 17, lick again and move to felt 116, hanging when preventing that net 17 from turning back, after lower couch (roll) 113, can establish the roller 122 of turning back, below roller 113 and the felt 116 between the roller 122 of turning back, can establish suction flat box 115, anti-roll 114 also can be a vacuum furnace, and this measure can guarantee that compound paper web is licked to move on on the felt 116 by felt 1 holder and pass press section.Fig. 1 a will dock the local amplification of roller group, and the mobile alignment of paper web is shape and has held upper and lower couch roll.In three rollers 18,113 in the butt joint roller group and 114 fixed roll is arranged, be fixed on the frame.Two movable roll are lifted roller mechanism with the pressurization of weight arm formula or forms such as air pressure, hydraulic pressure and are connected and keep pressure between movable roll and the fixed roll with frame.All the other are to all being that a fixed roll is contained on the frame in the net roller group, and another is a movable roll, lift roller mechanism by the pressurization of weight arm or other form and connect and keep pressure between movable roll and the fixed roll with frame.

Fig. 2 expresses two above fourdriner forming device wet end versions.Just to set up one group to the net roller since former of the every increase of the 3rd director's net former, to net roller group by last to net roller 21, down net roller 22 is formed: hanging when turning back for the fourdrinier wire that prevents to set up, can establish the roller 25 of turning back, with following the following net inner ring that docks between the net roller 23 be established suction flat box 23 at folding roller 25.Because the butt joint of many formers makes compound paper web thickening, establish suction flat box 26 below the rollers 122 of turning back that can replace among Fig. 1 with first squeezing 27, the felt 116 between lower couch (roll) 113 and roller 27.Because each former is arranged vertically, butt joint net 24 has one section stroke that moves down after single net is accepted compound paper web, for preventing that paper web breaks away from forming net 24, be necessary to make butt joint net 24 on last group following butt joint roller 22 and next group, to dock the angle of an inclination of maintenance between the roller 21, make the paper web support above net 21, one of its measure is to make adjacent upper and lower butt joint roller 22 and 21 perpendicular bisector arranged in dislocation.Can certainly adopt other measure, for example make adjacent following butt joint roller 22 diameters dock roller 21 or the like less than going up of its below.What provide on the figure is the arrangement schematic diagram of four directors net, the single sequence number formers such as order the 3rd, five, seven that increase progressively according to former are at number one fourdriner forming device, the former top that promptly holds lower couch (roll) is arranged vertically, and two sequence number formers such as the 4th, six, eight arranged vertical above No. second fourdriner forming device, the butt joint that interlaces of each forming net successive, promptly the 3rd docks with second, the 4th docks with the 3rd, and the like the fourdriner forming device of arbitrary number can vertically be set on demand.Each can be come a plane to former, or each former misplaces mutually to dress.Rack construction cooperate with it also can become varied.For easy to operate, require distance between the vertically arranged former in the same side is upper and lower, should reserve the operating space, and under each former, drip tray 112 is installed, anti-sealing splashes down and destroys paper web on lower floor's forming net.Fig. 2 a has represented that many directors net former respectively docks the compound situation of moving of licking of online paper web when being arranged vertically.The situation of having represented four formers among the figure, the 4th forming net 212 and the 3rd forming net 211 support paper webs are licked after roller 21 and 22 crimping place and are moved on on the net 211 from the top down, and net 212 is turned back.The net 210 of net 211 and second former is licked double-deck paper web on the individual layer paper web that moves on to net 211 after next group roller 21 and roller 22 crimping then, and net 211 is turned back.After this net 219 is with three layers of compound paper web and net 29 after roller 18 and roller 113 crimping, and three layers of compound paper web are licked and moved on on the net 29 individual layer paper webs, and net 210 is turned back.Net 29 and felt 28 are after roller 113 and roller 114 crimping, and four layers of compound paper web are licked and moved on on the felt, and net 29 is turned back.Four layers of compound paper web of felt carrying enter squeezing.For guarantee each joint lick move finish the following measure of taking smoothly, at first be to make the following butt joint roller lower couch (roll) of accepting net or felt one side and holding, the top layer density of anti-roll be higher than corresponding pressure roller.Secondly before last forming net is turned back, accepting net or felt one side is established suction flat box.

What Fig. 3 represented is the embodiment that connects a garden net former after a pair of fourdriner forming device butt joint again.Garden cylinder mould 31 is licked paper web on the cylinder mould of garden with roller 114 crimping below anti-roll 114 to move on on the felt 116 among the figure, when in the backhaul of felt wraparound, entering lower couch (roll) 113 then once more with anti-roll 114 crimping place, paper web on the felt is licked the latter and is moved on on the felt with compound from the multiple paper web of bilayer that docks down on the net 17.Butt joint roller group presses the form that can adopt three rollers that dock the roller group to be movable roll with the garden cylinder mould among the figure, lifts roller mechanism by the pressurization of weight arm or other form respectively and connects with board, and keep reaching between each roller pressure between anti-roll and the garden cylinder mould.The type that a pair of fourdriner forming device adds a garden net former again can also move cylinder mould position, garden, the crimping with anti-roll 114 of staggering, and for example the garden cylinder mould can be moved right in Fig. 3, adds pressure roller in felt inner ring corresponding position.So just can keep docking in three rollers of roller group has the structure of two movable roll of a fixed roll constant.

Many nets of the present utility model can adopt inventor's press device of paper-making machine invention technology (Chinese patent: 88100618.1,88103782.6) improve water rate and further shorten the felt stroke in press section to the net forming paper machine.The paper machine of arbitrary number former can be installed on less floor space as required according to the utility model scheme, the wet end of complete machine drags by a driven roller being located at the main press roller, and the friction that crimping produces between dependence felt and forming net and forming net and the forming net realizes run-in synchronism.Compact integral structure, operation is convenient.

Claims (8)

1, a kind of paper machine, by the sheet forming device, hold paper felt, the drying device of one or more pairs of pressure roller and some drying cylinders or other form is according to sheet forming, squeezing, oven dry is installed on the frame in proper order to be formed, it is characterized in that having at least two director's net formers to install relatively, hold paper felt below the fourdriner forming device, between two director's net formers and felt, there is one group of paper web to dock roller, butt joint roller group is by last, following two couch rolls and an anti-roll are formed, three roller successives press, a forming net holds top couch (roll) and is called net, and forming net holds lower couch (roll) and is called down net, hold that paper felt holds anti-roll and from each to passing the pressure roller; The superficial density difference of three rollers of butt joint roller group, its difference is that the top couch (roll) superficial density is lower than lower couch (roll), the lower couch (roll) superficial density is less than or equal to anti-roll; As main drive roller, each rotating device is realized transmission by the friction of the roller of borrowing the joint between felt and forming net and forming net and the forming net and the generation of the crimping between the roller to complete machine by last group pressure roller.

2, paper machine according to claim 1, it is characterized in that the fourdriner forming device is three or four, five so that more, all adopt the staggered form that connects, vertically to first, two liang of director's net former tops are arranged and are installed on the frame, the 3rd, five, device such as single sequence number fourdriner forming such as seven grades is one, following in two liang of director's net formers to net former top, the 4th, six, two sequence number fourdriner forming devices such as eight grades last to the net former above, the 3rd forming net docks net with last, the 4th forming net docks with the 3rd forming net, the 5th, six, seven, mode successive butt joint according to this such as eight forming nets such as platform such as grade, at each joint pair net roller group is arranged, to net roller group by on pressing mutually, down the net roller is formed, go up net, little sequence number forming net holds down the net roller, big sequence number forming net, is higher than the net roller net roller superficial density down the net roller around down.

3, paper machine according to claim 2, it is characterized in that at third and fourth, five, six and each former of postorder on have on to the net roller of turning back, go up the net roller of turning back is installed in down after the net roller, down to the net roller with on the following net inner ring that docks that net is turned back between the roller suction flat box is arranged, dock down that forming net holds one down butt joint roller and thereafter one go up and dock roller or top couch (roll) perpendicular bisector arranged in dislocation mutually, make the following butt joint net between two rollers be in the support state to this online paper web.

4, according to claim 1,2,3 described paper machines, it is characterized in that one or more garden net former in addition, garden net former is below felt, first garden cylinder mould can press mutually with anti-roll, second and third and Duo Tai garden cylinder mould all contrary felt direct of travel successive below the felt arrange and be positioned at it above hold by felt on pressure roller press mutually.

5, according to claim 1,2,3 described paper machines, it is characterized in that down the net former is had after lower couch (roll) under one the net roller of turning back, there is the lower compression roller of turning back to lean at the felt inner ring correspondence roller place of turning back, below anti-roll and the felt between the lower compression roller of turning back, suction flat box arranged with the roll-in of turning back.

6, paper machine according to claim 4, it is characterized in that down the net former is had after lower couch (roll) under one the net roller of turning back, there is the lower compression roller of turning back to lean at the felt inner ring correspondence roller place of turning back, at anti-roll and turn back suction flat box is arranged below the felt between the lower compression roller with the roll-in of turning back.

7, paper machine according to claim 5, the last pressure roller that it is characterized in that first pair of pressure roller are down to the net roller of turning back.

8, paper machine according to claim 6, the last pressure roller that it is characterized in that first pair of pressure roller are down to the net roller of turning back.

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