CN102756940A

CN102756940A - Apparatus for applying force to component of fibrous web processing machine

Info

Publication number: CN102756940A
Application number: CN2012101293157A
Authority: CN
Inventors: 汤米·万哈拉; 阿马斯·格特
Original assignee: Metso Paper Oy
Current assignee: Valmet Technologies Oy
Priority date: 2011-04-21
Filing date: 2012-04-23
Publication date: 2012-10-31
Anticipated expiration: 2032-04-23
Also published as: DE102011007888A1; CN102756940B

Abstract

The invention relates to an apparatus (1) for applying a force to a component (2) of a fibrous web processing machine. The apparatus (1) comprises a force applying apparatus arranged at the corresponding end regions of the component (2). At least one of the end regions of the component (2) is provided with at least two independently controllable force applications units (7,8). An independent claim is included for method for applying force to component of fibrous web processing machine.

Description

Be used on the roller of fiber web processing machine, executing power-assisted device

Technical field

The present invention relates to a kind of power-assisted device of on the parts of fiber web processing machine, executing.In addition, the invention still further relates to a kind of power-assisted method of on the parts of fiber web processing machine, executing.

Background technology

Can know a kind of such device and corresponding method by patent documentation DE112005002147A1.A kind of similar device has also been described in patent documentation US4332192.

In the fiber web processing machine of for example manufacturing and/or converted paper, cardboard or cotton paper or textiles, fiber web (for example drying or press polish) in different process steps is squeezed between two rollers that constitute the roller gap.Therefore, in most of the cases one of them roller is set to movablely, and another roller is installed regularly.Can on movable roller, apply power by means of such device, to change the squeese pressure in the roller gap, promptly so-called roller clearance pressure or nip pressure.

But,, for example, when adjustment roller gap, may produce vibration particularly at the roller of calender and on the miscellaneous part of this fiber web processing machine, vibrate through regular meeting.Particularly when moving in its resonance range, power-assisted device can vibrate when executing.

Except the noise that usually causes appreciable interference, this vibration also can cause being called as the phenomenon of " band ", and wherein, fiber web can have different thickness on it is vertical, because the size in roller gap can change owing to vibration.In addition, vibration also possibly cause distortion on roller, and the circle of this meeting pair roller has a negative impact and causes equally wearing and tearing faster.When using coating roller, tend to damage the coating of roller owing to vibration.

Utilize known devices and method to be difficult to solve above-described " band " problem.

Another problem is owing to the sealing member that is installed on the piston produces with respect to the friction of the cylinder that holds piston, and this possibly cause when accurately adjustment puts on the power on the roller, going wrong.

Summary of the invention

Therefore, the objective of the invention is to propose to be used on the parts of fiber web processing machine, to execute power-assisted a kind of device and a kind of method, utilize these apparatus and method can solve above-mentioned vibration problem, and can control the power that is applied on the parts well.

Be used on the parts of fiber web processing machine, executing power-assisted device and be achieved through a kind of according to the object of the invention, this device at least one end regions of parts, be provided with at least two can control independently of one another the power bringing device.

Utilization is according to device of the present invention, can control the power on the parts that are applied to the fiber web processing machine better through carrying out distribution power at two between can the power bringing device of separate control.Particularly can power that utilize these two power bringing devices to apply separately be combined into a power that is applied to jointly on the parts.This also is favourable during to fiber web processing.

Can reduce the vibration of the parts of the power of being applied in thus.Particularly when with the contacted roller of fiber web on when applying power, this is very favorable, at random changes the roller clearance pressure because can be close in this way, the defective that can avoid the band problem thus and therefore produce.

A kind of better possibility is, is applied to the power on the parts of fiber web processing machine in order accurately to adjust through this device, and at least two power bringing devices are set on two end regions of these parts.

In another preferred embodiment of the present invention, can the power bringing device that be arranged on the same end regions be configured on parts, to apply different big or small power.Can make the power that is applied on the parts combined through intimate methods arbitrarily thus, also prevent vibration reliably with the control of optimizing being applied to the power on the parts.

Of the present invention a kind of especially preferred embodiment in, the power bringing device is designed to the fluid force-input device, for example hydraulic actuating cylinder and/or air cylinder.Can on parts, apply required higher power through simple especially, failure-free mode thus.

If with at least one power bringing device along machine direction movably being connected with roller on the Connection Element and/or being installed on the treatment facility of fiber web processing machine, can also adjust the power that is applied on the parts more neatly.

A kind of power-assisted method that is used on the parts of fiber web processing machine, executing is proposed according to the present invention; This method applies power by means of the power bringing device in the respective end zone that is arranged on parts on these parts; At least two power bringing devices are set at least one end regions of parts; And during processing fiber width of cloth material, be applied to the power on the parts through these two power bringing device adjustment.

Thus, can prevent the vibration and the consequent problem that in the solution known, occur, particularly about the problem of band according to prior art through the present invention.Through during processing, power being adjusted, can prevent the requisite in other cases shutdown of fiber web processing machine, thereby save cost greatly.

Description of drawings

By accompanying drawing embodiments of the invention are carried out the explanation of principle below.

Fig. 1 shows first kind of embodiment according to device of the present invention, is used on the parts that are configured to the calender roller of fiber web processing machine, applying power;

Fig. 2 shows second kind of embodiment of device as shown in Figure 1;

Fig. 3 shows the third embodiment of device as shown in Figure 1;

Fig. 4 schematically show very much along the arrow IV among Fig. 3, according to the schematic top plan view of apparatus of the present invention.

The specific embodiment

Fig. 1 show the fiber web processing machine that is used for shown in whole, be configured to execute power-assisted device 1 on the parts of roller 2 in this embodiment.This fiber web processing machine for example can be paper machine, lap machine or cotton paper machine, utilizes this production of machinery fiber web W.In this embodiment, roller 2 is parts of the treatment facility that is configured to calender 3 of fiber web processing machine.Except calender 3, treatment facility can also be drying section, coating station, dewatering element or other similar treatment facilities.Except roller 2, calender 3 also has other roller 4, but in calender 3, can also have other roller.Particularly can calender 3 be designed to glazing calender, at this, each roller is provided with unimportant with which type of angle to each other.

Between two

rollers

2 and 4 of calender 3, form roller gap N, fiber web W advances through this roller gap, in this roller gap, fiber web W is processed, at this for fiber web W is carried out press polish.Be applied to the power on the roller 2 through adjustment use device 1, can change the roller clearance pressure or the nip pressure that between these two

rollers

2 and 4, produce.

Except roller 2, these parts can also be the doctor beam of coating station, the coating beam of sizing applicator, the suction box or the dewatering elements of mould.

The device 1 two along having the power bringing device respectively on the end regions of laterally seeing 5 and 6 of roller 2, will be elaborated to it below.Two

end regions

5 and 6 can be seen in scheme drawing as shown in Figure 4, and in Fig. 1 to Fig. 3, can only see the front end region 5 that does not mark with Reference numeral.

Below in each embodiment like Fig. 1, Fig. 2 and device 1 shown in Figure 3; Go up at least two power bringing devices 7 of setting and 8 at least one end regions (front end region 5 in Fig. 1, Fig. 2 and Fig. 3, seeing under the present case), they can separate control.On another end regions 6 of the roller of preferably in Fig. 1, Fig. 2 and Fig. 3, can't see 2 this power bringing device is set also; That is to say; Preferably on two

end regions

5 and 6 of roller 2, at least two power bringing

devices

7 and 8 are set, can control independently of each other them.In addition, the power bringing

device

7 and 8 that preferably will be arranged on

same end regions

5 or 6 is designed to, and can apply different big or small power by pair roller 2.

In this embodiment, power bringing

device

7 and 8 applies power or makes its motion with pair roller 2 corresponding to following roller 2.But also can utilize any roller of power bringing

device

7 and 8 pairs of calenders 3 to apply power, so that can adjust the power in any roller gap.

In this embodiment, power bringing

device

7 and 8 is designed to the fluid force-input device as hydraulic actuating cylinder respectively, wherein, because hydraulic actuating cylinder has different spring constants, therefore can realize the power of different sizes.Alternatively can also power bringing

device

7 and 8 be designed to air cylinder, electrical motor or design with other suitable types and mode.Therefore, on same end regions 5 and/or 6, can also use hydraulic actuating cylinder, and use air cylinder or also can use electrical motor where necessary as another power bringing

device

7 or 8 as one of them power bringing device 7 or 8.On the

same end regions

5 or 6 of roller 2, use hydraulic actuating cylinder can realize the above-described power that on roller 2, applies different sizes in advantageous particularly ground simultaneously, because the power that applies through air cylinder in principle is littler than the power that applies through hydraulic actuating cylinder usually with air cylinder.Generally speaking, in the power bringing

device

7 and 8 that fluid loads, use working fluid, for example hydraulic oil, water, aqueous emulsion, gas or gas emulsion usually.

In addition, in all embodiments shown in Fig. 1, Fig. 2 and Fig. 3, two power bringing devices 7 are that roller 2 be connected through Connection Element 9 and parts with 8 on each end regions 5 and 6.At this Connection Element 9 is configured to center on the supporting arm that turning cylinder 10 is installed with respect to the framework of calender 3 rotationally, in order to anvil roll 2.Because connecting Connection Element 9 itself is known with roller 2 needed parts, therefore in Fig. 1, Fig. 2 and Fig. 3, it is not illustrated.In a side relative with Connection Element 9 and roller 2, power bringing

device

7 and 8 is installed in treatment facility at least indirectly, just on the calender 3.Power bringing device 7 with 8 with being connected of calender 3 also be known, therefore in Fig. 1, Fig. 2 and Fig. 3, be not shown specifically.

In addition; If the embodiment of the device shown in all 1 is connected each other; Also can obtain the following fact:, the power on the roller 2 that be applied to can distributed between

power bringing device

7 and 8 through being positioned at least two the power bringing

devices

7 and 8 at least one end regions 5 or 6.Can during processing fiber width of cloth material W, utilize power bringing

device

7 and 8 adjustment to be applied to the power on the roller 2 thus, be applied to the power on the parts 2 in other words.When in practice, this quality that is applied to the fiber web W that the change of the power on the roller 2 is specially adapted to produce when determining by means of power bringing

device

7 and 8 pairs changes.

At this, hydraulic actuating cylinder perhaps is generally the power bringing

device

7 or 8 with taller springs constant, can on the N of roller gap, apply needed linear load, and another hydraulic actuating cylinder can carry out the correction that possibly need with regard to this linear load.That (the power bringing device that promptly is provided with near the frame 3a of calender 3 is power bringing device 7 in this embodiment) of being positioned at the inside in preferred two power bringing

devices

7 and 8 applies power still less, just when for hydraulic actuating cylinder, has littler spring constant.

In embodiment as shown in Figure 1, two power bringing

devices

7 and 8 are installed on the Connection Element 9 on same point of connection 11, and are being installed on the calender 3 on different point of connection 12 and 13.

In contrast, in embodiment as shown in Figure 2, two power bringing

devices

7 and 8 are being installed on the calender 3 on the same point of connection 14, and are being installed on different point of

connection

15 and 16 on the Connection Element 9.

And according to embodiment as shown in Figure 3, two power bringing devices 7 not only are being installed on different point of

connection

17 and 18 on the Connection Element 9 with 8, and also are being installed on different point of

connection

19 and 20 on the calender 3.Two power bringing

devices

7 and 8 also are provided with at this in parallel to each other, and therefore, though on the service direction with the fiber web W of " x " expression, produce bigger space requirement, the space requirement on transverse machine y is littler.

In the embodiment shown in all; Can be with at least one, also can two power bringing devices 7 and/or the 8 service direction x along fiber web W be installed on Connection Element 9 and/or the calender 3 movably in case of necessity; Thus can be under the situation that does not change the power that corresponding power bringing device 7 and/or 8 applies, the moment of influence on Connection Element 9.In this case for one in power bringing

device

7 or 8 along width of cloth material service direction x mobility, preferably will be positioned at the inside, install movably near the power bringing device 7 of the frame 3a of calender 3.

In birds-eye view as shown in Figure 4, only schematically show very much roller 2 and in the embodiment of calender as shown in Figure 33, be positioned at the power bringing

device

7 and 8 on the

end regions

5 and 6 of roller 2.Can also on 6 power bringing device 7 and the different arrangement mode of 8 designs at two end regions 5 in theory.Particularly a power bringing

device

7 or 8 can also only be set on

certain end regions

5 or 6.

Claims

1. one kind is used on the parts of fiber web processing machine, executing power-assisted device; This device has the power bringing device on the respective end zone that is arranged on these parts; It is characterized in that; At least one end regions (5) of said parts (2) go up be provided with at least two can control independently of one another power bringing device (7,8).

2. device as claimed in claim 1 is characterized in that, goes up at two end regions (5,6) of said parts (2) at least two power bringing devices (7,8) are set.

3. according to claim 1 or claim 2 device is characterized in that, is arranged on power bringing device (7,8) on the same end regions (5,6) can apply different sizes on said parts (2) power.

4. like each described device in the claim 1 to 3; It is characterized in that said power bringing device (7,8) is at each end regions (5; 6) be connected with said parts (2) through Connection Element (9); And be connected with the treatment facility (3) of fiber web processing machine at least indirectly in a side relative with said parts (2), and at least two said power bringing devices (7,8) are being installed on the same point of connection (11) on the said Connection Element (9); On the treatment facility (3) that is installed in said fiber web processing machine on the different point of connection (12,13).

5. like each described device in the claim 1 to 3; It is characterized in that said power bringing device (7,8) is at each end regions (5; 6) be connected with said parts (2) through Connection Element (9); And be connected with the treatment facility (3) of fiber web processing machine at least indirectly in a side relative with said parts (2), and at least two said power bringing devices (7,8) are on the treatment facility (3) that is installed in said fiber web processing machine on the same point of connection (14); Be installed on the said Connection Element (9) on the different point of connection (15,16).

6. like each described device in the claim 1 to 3, it is characterized in that said power bringing device (7; 8) at each end regions (5; 6) be connected with said parts (2) through Connection Element (9), and be connected with the treatment facility (3) of fiber web processing machine at least indirectly in a side relative with said parts (2), and at least two said power bringing devices (7; 8) at different point of connection (17; 18,19,20) be installed on the treatment facility (3) of said Connection Element (9) and said fiber web processing machine.

7. like each described device in the claim 1 to 6, it is characterized in that said power bringing device (7,8) is designed to the fluid force-input device, for example hydraulic actuating cylinder and/or air cylinder.

8. like each described device in the claim 1 to 7; It is characterized in that; At least one said power bringing device (7,8) is being installed on the said parts (2) movably and/or is being installed on the treatment facility (3) of fiber web processing machine on the said Connection Element (9) on the service direction of fiber web (W).

9. like each described device in the claim 1 to 8, it is characterized in that said parts (2) are rollers, another roller (4) of itself and fiber web processing machine constitutes roller gap (N); The doctor beam of coating station; The coating beam of sizing applicator; The suction box of mould or dewatering elements.

10. one kind is used on the parts of fiber web processing machine, executing power-assisted method, wherein, on these parts, applies power by means of the power bringing device in the respective end zone that is arranged on these parts; It is characterized in that, go up at least one end regions (5,6) of these parts (2) at least two power bringing devices (7 are set; 8); And during fiber web (W) is processed, be applied to the power on the said parts (2) through said two power bringing devices (7,8) adjustment.