CN85103249A - Supercalender edge chuck discharges - Google Patents

Abstract

Calender and method of operating thereof, calender have vertically to one of folded a plurality of rotations roll, have the bearing arrangement thing otherwise each rolls in each end mutually, the bearing arrangement thing is provided with and one of suspends on the axle stop convex shoulder at one of each end that respectively rolls in midair and one of cooperate the thrust convex shoulder.Be provided with the guide groove of each bearing arrangement thing, and be provided with the reduction pattern of being separated unconnected suspention by each stop convex shoulder at interval be increased as between the mutual cramping modes relationships vertical to moving the device respectively roll.Pawl that becomes the weight of the bearing arrangement thing that respectively rolls of rising cramping modes relationships to borrow to match and rack structure thing and be disengaged.

Description

Supercalender edge chuck discharges

The invention relates to the supercalender that wherein respectively rolls the limited pattern disconnected from each other and that mutual one-tenth calendering cramping engages in another kind of pattern that suits in a kind of pattern, to become.

Supercalender related to the present invention is a well known and comprise one of a great deal of folded calender bwol in the technology, and the separation of wherein respectively rolling can be from folded top or bottom control.When the control of folded bottom, folded end bottom-master roll can one dip and a raised position between mobile.In main dipping of rolling, the rolling of a great deal of of the main side of rolling on is separated from each other and is formed in each gap between respectively rolling, intert by rolling any harmful effect of the folded or elimination Zhe silver that breaks or wrinkle by respectively rolling the cramping mouth with a convenient new material silver, when one-tenth like this gap, the opposite end of respectively rolling is supported along the bearing arrangement thing separately on each convex shoulder that rolls each folded opposite two upright suspention axle.In rolling folded calendering pattern, the main whole cramping relations that are rolled into that act on a time adjacent calender bwol and promote the top of rolling, the bearing arrangement that respectively roll this moment is lifted away from the axle convex shoulder.Be to obtain the cramping mouth load of uniformity, rolling that folded top rolls can be by the fluid pressure type biased downward.The calender of above-mentioned pattern is shown in United States Patent (USP) the 3rd, 364, and 848,3,369,483,4,290,351 and 4,311, No. 091.

Because each calender bwol is all quite heavy in the calender, for example each about 42,000 pounds, so each bearing arrangement thing must be quite big, respectively rolling with box lunch provides suitable support when being bearing on the axle separately.With regard to ordinary circumstance, the weight of each bearing arrangement thing of each end that each rolls can be from about 4,000 to 5,000 pounds.Therefore, when respectively rolling the pinching calendering pattern that is lifted into, and each bearing arrangement thing is when each each end one-tenth dead weight of rolling concerns, the dead weight end that respectively rolls on load trend make respectively roll distortion and thereby make folder mouth between respectively rolling from desirable straight line distortion, this distortion or warpage state, general normal needs fly to roll on the outer hub that (that is guide roll) be supported in the bearing arrangement thing time more shape is serious.

The present invention system is about alleviating because of rolling folder mouthful distortion due to the dead weight of bearing arrangement thing.

For reaching this purpose, the invention provides a kind of method of operating of calender; Calender has vertical folded a plurality of rotations and rolls, each rolls in each opposite end has the bearing arrangement thing, the bearing arrangement thing is provided with a thrust convex shoulder that cooperates with stop convex shoulder one of on a suspention axle of each end that respectively rolls, guide each bearing arrangement thing vertically to the device of motion, and the reduction pattern of separating independent suspension at the interval that each thrust convex shoulder engages each stop convex shoulder and each thrust convex shoulder are lifted away from the mutual of each stop convex shoulder and become vertical to the mobile device that respectively rolls between the rising cramping modes relationships; And method is included in the weight of the bearing arrangement thing that releasing is respectively rolled in the rising cramping modes relationships of respectively rolling.

For implementing method of the present invention, the invention provides a kind of calender: calender has vertical folded a plurality of rotations and rolls, each rolls in each opposite ends has the bearing arrangement thing, the bearing arrangement thing is provided with and suspends the thrust convex shoulder that the stop convex shoulder on the axle cooperates in midair at one of each end that respectively rolls, guide each bearing arrangement thing vertically to the device that moves, and engage between the mutual one-tenth rising cramping modes relationships that each stop convex shoulder is lifted away from each stop convex shoulder vertically to moving the device that respectively rolls, and comprise the device and the device of handling decontrol of the weight of the bearing arrangement thing that respectively rolls of removing into rising cramping modes relationships at each thrust convex shoulder.

To understand other purposes of the present invention smoothly from explanation hereinafter, its advantage of characteristics, but various variations and the modification and do not break away from the principle and the scope of novel concept of the present invention in addition of illustrated instantiation with reference to a kind of representative instantiation of accompanying drawing.

Fig. 1 is the summary lateral view according to supercalender of the present invention, is shown as respectively rolling of calendering pattern.

Fig. 2 respectively rolls the figure that belongs to unlatching or interval separation mode for showing.

The amplifier section cross sectional detail of Fig. 3 for being got along Fig. 1 center line II-II haply.

The vertical cross section figure of Fig. 4 for being got along Fig. 3 center line IV-IV haply.

The part section detail drawing of Fig. 5 for being got in identical with Fig. 4 haply plane.But show some characteristic with regard to enlarged detail.

The part sectional drawing of Fig. 6 for getting on the plane of Fig. 5 center line IV-IV haply.

The part cross sectional plane figure that Fig. 7 is got along Fig. 7 center line VII-VII haply.

Consult Fig. 1 and 2, show a side of supercalender among the figure, vertically to a folded calender bwol 10 is supported in the scaffold 11.Only be shown with a side of calender among the figure, the mirror shadow of the side shown in another is essentially, and explanation will be carried out according to the essence homogeny of both sides and all identical in fact situation of works of rolling the other end of each calender bwol in folded 10.

Calender roll folded 10 comprise the below main roll 12 and a series of fill-types above it (that is constitute by a stamen body of supporting one group of concentric cotton, paper or cellulosic dish) roll 13 and each cast iron roll 14, become the crampings relation mutually and make by the two sides of calendering silver W and all be subjected to the smooth interaction that these filled types roll except that roll 13 near a pair of filled type that rolls folded center, it generally is to strike a bargain for disposing in folded rolling that each cast iron rolls 14.Rolling folded top, head rolls 15(Fig. 1) in the calendering pattern, be pressed against downwards roll folded on, to obtain the pinching pressure that rolls whole in folded uniformity in fact between respectively rolling.

Though the top in some calender is rolled not only and is rolled as pressure, and also roll whole liftings that are rolled into folder mouthful apart relation except that below and roll, but the preferred embodiments shown in Fig. 1 and 2 is by the below or mainly rolls 12 and control calendering pattern shown in Figure 1 and the pattern of separately rolling shown in Figure 2 as promoting.Based on this purpose, main each bearing at end device 17 of 12 of rolling links to each other with the hydraulic plunger 19 that upwards pushes of hydraulic cylinder 19, mainly rolls 12 and reach the calendering pattern and fall the master rapidly and roll 12 and reach the pattern of separately rolling shown in Figure 2 with suitable upwards the propelling movement shown in direction arrow among Fig. 1.On the other hand, the bearing arrangement thing 20 that 15 opposite end is rolled on the top is pushed downwards by a relevant hydraulic pressure actuator piston boit bolt 21, and the hydraulic cylinder 22 of post bolt 21 is mounted on the framework 11.After hydraulic pressure actuator 19 rising masters rolled 12 one-tenth calendering patterns, each actuator 22 was by suitable priming and reach the required calendering load of rolling the uniformity in fact on folding.As shown in Figure 2, each actuator 22 is separately rolling in the pattern not by priming.

Whole the rolling along supporting structure framework 11 of rolling in folded 10 for guiding moves both vertically, and is provided with a vertical rail bar 23, and rail bar 23 extends and rolls folded overall length and become slidably tracking joint with the outer hub of counting the bearing that rolls from rolling folded top to bottom.Each rolls 13 and 14 and has a same axis bearing structure thing 24.All bearing arrangement things 24 and the outer hub of whole bearings of bearing arrangement thing 17 and 18 all can with 23 one-tenths slideable joints of rail bar, as Fig. 3 typically show.Rail bar 23 is become suitable each bolt 25 at interval to be fixed in framework 11 along length.Bearing outer 27 has the load-bearing surface 27 that engages with 23 one-tenth trackings of rail bar, and load-bearing surface cooperates with the baffle plate 28 that is fixed in outer 27 by bolt 29.Each roller bearing holds the 30 continuous axle journals 31 with calender bwol and is supported on the outer hub 27 of bearing, and the outer hub of bearing has quality and the durability that is suitable for this purpose.

The outer hub 27 of each bearing arrangement thing 20 and each bearing of 24 has one one-tenth integral yoke 32, the shaft that wherein holds thread helix axle 33, yoke provides towards the thrust convex shoulder that also can engage the locating snap ring 34 that occurs with retainer nut's form, and locating snap ring 34 also can be along the simple and easy adjustment of axle to be threadably engaged in axle 33.Each retainer nut 34 is reached its continuous required interval of rolling between roll adjacent with each by suitable the adjustment.In preferable relation, this minor tick can roll folder mouthful to below from the top and roll folder mouthful and strengthen gradually.For example, interval at the top folder mouth can be about half inch, and can increase with regard to about 0.2 o'clock increment at the interval of rolling downward each the follow-up folder mouthful in folded, so number shown in having roll roll folded in, the below folder mouthful interval when respectively being rolled into separated position can be about 2.1 inch.When silver upwards carried out by calender, this kind configuration is convenient to intert or any other silver state or situation.Each axle 33 is fixed in the top of framework 11 really.

Though each bearing arrangement thing 20 and 24 itself can weigh to causing folder mouthful distortion because of roll dead weight in the pattern in closed cramping effect as shown in Figure 1, the situation that may take installation on each outer hub 27 of above main flow 12 each bearing arrangement thing of rolling respectively to fly to roll assembly 35 makes problem more serious.These are installed flies to roll 36(and also is called guide roll sometimes) be favourable person, all keep in each case aiming at because of respectively flying to roll with the best of associated calender bwol, and and when opening each folder mouthful, even the distortion tension force that the band W of minimum takes place also to belong to is arranged when rolling that in folded each fallen rapidly.

According to the present invention, each bearing arrangement 20 and 24 weight that is in the pattern shown in Figure 1, are eliminated from respectively rolling 13 and 14 in the rising cramping modes relationships of each calender bwol.This point be mat for example the device shown in Fig. 3-7 reach, device comprises rack gear arrangement 37, rack gear arrangement becomes the convenient form of clamp of a microscler rack bar that links to each other with each rail bar element 33 and can be meshed by a pawl 38 selectivity that the outer hub 27 of bearing is carried.As indicated earlier, this configuration places each folded example of calender bwol equally, and in specific words, respectively in each end of each calender bwol.This is configured to roll 12 each calendering that raises its top when being rolled into the cramping calendering and concerning when main, and rack bar 37 is meshed by pawl 38, as shown in phantom in Figure 5.The lotus root cooperation usefulness that mat constituted, the dead weight load of associated bearings works is eliminated by the associated end from calender bwol.When the gap of each folder mouthful is fallen and be provided to each calender bwol, pattern as shown in Figure 2, and the weight mat of each calender bwol separately the bearing arrangement thing and when being supported on each convex shoulder 34, each pawl 38 suitable each rack bar 37 that break away from.

In a kind of favourable configuration, each rack bar 37 is by in the slideable complementary vertical inner width 39 that is installed on the relevant rail bar element 23, and the degree of depth of inner width is enough to hold rack bar and its tooth 40 is flushed with the outer surface of rail bar element 23 approximately, as Fig. 3 and 7 clear demonstrations.Be installed in the groove 42 in inner width 39 outsides and 43 one-tenth overlapping blend stops 41 of relation that stop of the horizontal convex shoulder of longitudinal extension along rack tooth 40 inboards of rack bar 37 are fixed in the position by each screw 44.Plant by this each rack bar 37 of configuration kept somewhere and fit relation fully with 23 one-tenths of relevant rail bar elements also can vertical slip in indwelling inner width 39 separately.The lower end of each rack bar 37 is rolled folded both sides respectively against stop convex shoulder 45(Fig. 1 at calender), the stop convex shoulder is made of the top person in a pair of perpendicular separation sliding convex head 45 that becomes integral body with the main shell that rolls 12 bearing arrangement thing 17.These sliding convex heads 45 are with regard to the same way as of bearing arrangement beyond the region of objective existence hub 27 as shown in Figure 3 and engage with rail bar element 23.Therefore, roll 13 when being raised when main, each rack bar 34 is moved upward at rail bar inner width 39 separately.Roll 12 when being fallen when main, each rack bar 37 is followed relevant convex shoulder real 45 and fall under the guiding of separately rail bar inner width with it because of the gravity biased effect at least.

The mode that the tooth of pinion rack when guaranteeing that each pawl only prepares to carry out the dead weight elimination function of pawl and rack structure thing in the calender bwol system is housed is controlled the device of each pawl 38 separately.For reaching this purpose, the end of each pawl 38 is partly supported by the lower end of the piston rod 47 of the orthoscopic roll extrusion actuator 48 that is installed on the outer hub 27 of each bearing with regard to the upright position.The upper end part mat of pawl 38 upwards stretches into the ear 50 in the U-shaped hook 51 that piston rod 47 carries and reaches the firm pivot pin 52 that pivot is dynamically connected and be connected in piston rod or post bolt 47 pivotally, so pawl 38 is entered by suitable swing and the ratchet-type of the tooth 40 of disengaging and tooth bar 37 meshes.Shape and the finger 53 of recessed crack 54 complementations of the tooth of tooth bar 40 and facility reach of this kind ratchet-type engagement mat on pawl, each tooth 40 one of provide as shown in FIG. towards the top convex shoulder.In the inoperation pattern of pawl 38, actuator 48 is upwards drawn in a raised position with pawl, in this position, the pawl upper end near the convex shoulder on the end of tooth bar 37 55 conflict can be convenient by the neck of actuator 48 following aspect carried towards below stopping element 57.Therefore, pawl 38 quilts are swung to the face of adjacent outer hub 27 really and are held in finger 53 and break away from the position of rack tooths 40, in the no active position of this withdrawal of pawl 38, on the side opposite of the upper end of pawl and pivot 52 with convex shoulder 55 towards above convex shoulder 58 engage the biasing device that comprises spring 59, spring 59 is compressed by convex shoulder 58.The hydraulic fluid of handling actuator 48 is through top inlet 61 and below inlet 62(Fig. 5) deliver to the two opposite sides of piston 60, two inlets are connected to alternately fluid pressure/releasing conduit 63 and 64.

The operation of each hydraulic pressure actuator 48 is rolled the operational coordination that 12 hydraulic pressure actuator 19 and top or neck roll 50 actuator 22 with main.Roll-off down and separately during each calender bwol when main, each pawl actuator 48 is regained each pawl.Roll each calendering that raises and be rolled into pinching calendering relation when main, and top pressure rolls 15 and applied calendering load when the roll extrusion by priming, each pawl actuator 48 is handled and is driven each pawl 38 downwards.When each pawl convex shoulder 55 broke away from each retainer 57, each biasing spring 59 made each pawl 36 swing to associated rack 37, so each pawl finger 53 is with one of the tooth 40 of pinion rack.Each actuator 48 of mat is added on the continuous thrust of each relevant pawl 38 then, and a corresponding upwards lifting power is added on the associated bearings works and the static load of auto-correlation calender bwol elimination bearing arrangement thing.This measure eliminate bearing arrangement thing and the relevant dead weight that flies to roll to calender bwol change the shape effect, will keep each calendering folder mouth of uniformity in fact so respectively roll.

When avoiding that calender bwol is folded to be fallen, the fault of any pawl 38 inappropriate withdrawals, each pawl 38 be provided with monitor that it regains performance comprise proximity switch 65(Fig. 5) safety device.If during the inappropriate withdrawal of arbitrary pawl 38, this switch promptly sends signal at a control station, so can trace this obstacle.This safety feature avoids any pawl separately rolling in the pattern possibility that keeps with tooth bar 37 engagements, in order to avoid roll when building up calendering cramping pattern in lifting, the relevant total weight that rolls may be added on the associated rack 37 through the fault pawl.Thereby, avoided applying excessive and the destructive weight of possibility to tooth bar 37.

Should understand, can carry out various variations and modification and do not break away from the principle and the scope of novel concept of the present invention.

Claims (20)

1, handles the method for calender, it is characterized in that, calender have vertically to folded a plurality of rotations roll, each rolls in each opposite end has a bearing arrangement thing, the bearing arrangement thing is provided with and suspends the thrust convex shoulder that the stop convex shoulder on the axle cooperates in midair at one of each end that respectively rolls, guide each device that the bearing arrangement thing moves both vertically, and separate at the interval that each thrust convex shoulder and each stop convex shoulder engage that the reduction pattern of suspending in midair separately and each thrust convex shoulder be lifted away from each stop convex shoulder become the vertical mobile device that respectively rolls between the rising cramping modes relationships mutually; And comprise: the weight of in the rising cramping modes relationships of respectively rolling, eliminating the bearing arrangement thing that respectively rolls.

2, according to the method for claim 1, be characterized in, therein, eliminate each lifting pawl that the weight effect comprises that manipulation cooperates with associated rack.

3, according to the method for claim 2, be characterized in, therein, just comprise respectively being rolled into the engagement that the reduction pattern becomes rapport and move each tooth bar disengaging and each pawl with vertical moving.

4, according to the method for claim 3, be characterized in, therein, comprise just becoming rapport and moving each pawl and become renunciation with each tooth bar with the migration of each tooth bar.

5, according to the method for claim 4, be characterized in, therein, comprise being reduced into the cramping modes relationships, the engagement that recovers each pawl and each tooth bar then respectively rolling.

According to the method for claim 5, be characterized in that 6, therein, be included in after each pawl recovers each tooth bar of engagement, a component that applies bearing arrangement thing lifting power is in each pawl.

According to the method for claim 1, be characterized in that 7, therein, the hydraulic operation weight that comprises mat and the reduction of respectively rolling and raise into rapport is eliminated mechanism and carried out weight elimination effect.

8, according to the method for claim 1, be characterized in, therein, comprise operated pawl and rack gear arrangement and reach weight elimination effect.

9, method according to Claim 8 is characterized in, therein, comprises and one mainly is rolled into rapport and vertical mobile rack what roll folded lower end.

10, a kind of calender, be characterized in, have vertically to folded a plurality of rotations roll, each rolls the thrust convex shoulder that the stop convex shoulder on the suspention axle of each opposite end cooperates and guides each device that the bearing arrangement thing moves both vertically, and separate at the interval that each thrust convex shoulder and each stop convex shoulder engage that the reduction pattern of suspending in midair separately and each thrust convex shoulder be lifted away from each stop convex shoulder become the vertical mobile device that respectively rolls between the rising cramping modes relationships mutually; And comprise:

In rising cramping modes relationships, respectively roll the device of the weight of eliminating the bearing arrangement thing certainly; And

Handle the device of weight cancellation element.

According to the calender of claim 10, be characterized in that 11, therein, each bearing arrangement thing has respectively flying of being mounted thereon and rolls, and the weight cancellation element is not only eliminated the weight of bearing arrangement thing and is also eliminated the weight that flies to roll.

According to the calender of claim 10, be characterized in that 12, therein, the weight cancellation element comprises each the lifting pawl that cooperates with associated rack.

13, according to the calender of claim 12, be characterized in, therein, comprise with vertical move being rolled into respectively that the reduction pattern becomes rapport and moving each tooth bar and break away from device with each pawl engagement.

14, according to the calender of claim 13, be characterized in, therein, comprise that moving each pawl with mobile the acting as rapport of each tooth bar becomes renunciative device with each tooth bar.

According to the calender of claim 14, be characterized in that 15, therein, suitable each the pawl composition that keeps of device that moves each pawl is reduced to the cramping modes relationships from relation until respectively rolling, the pawl mobile device is by the engagement that suits to touch and recover each pawl and each tooth bar then.

According to the calender of claim 14, be characterized in that 16, therein, the pawl mobile device is applied a component of bearing arrangement thing lifting power in each pawl by suitable actuating.

According to the calender of claim 10, be characterized in that 17, therein, the weight cancellation element comprises that mechanism 1 and manipulation device comprise and can and rise into rapport and each hydraulic pressure actuator of working with the decline of respectively rolling.

According to the calender of claim 10, be characterized in that 18, therein, the weight cancellation element comprises pawl and rack gear arrangement.

19, according to the calender of claim 18, be characterized in, therein, roll folded main rolling that is included in its lower end, and by main roll control and with move the main device that acts as the vertical mobile rack of rapport that rolls.

20, according to the calender of claim 10, be characterized in, therein, comprise each the rail bar element that constitutes guiding device, but each up-and-down movement rack bar that in each vertical track of each rail bar element, becomes to be slidably engaged, make each rack bar reciprocating device in each track, and the selectivity that constitutes by each bearing arrangement thing mesh each rack bar each can move back and forth pawl.

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