CN208104886U - Improve roller using the roll-gap width that bending absorbs space - Google Patents

Abstract

The utility model relates to improve roller using the roll-gap width for being bent absorption space, the roller is absorbed the deformation axis or pipe caused by the pressure that the edge of roller applies by the deformation accommodation space inside roller, thus the variation of roll-gap width is prevented, the roller is by including that a double roller of upper roll and lower rollers is constituted, it is characterized in that, the pipe (20) of the axis (S) and the above-mentioned axis of encirclement of above-mentioned upper roll and each free transmitting rotary power of lower rollers is constituted, the deformation accommodation space (100) of the deformation of absorption axiss when the inside at the both ends of the pipe of above-mentioned upper roll is formed in pressurization.

Description

Improve roller using the roll-gap width that bending absorbs space

Technical field

The utility model relates to improve roller using the roll-gap width (nip width) for being bent absorption space, more specifically, relating to And following roller：Has the adjusting unit for the deformation that can absorb roller, to prevent the pressure in pressurization from concentrating on the two sides of roller Edge, and rejected product is produced by the variation of roll-gap width.

Background technique

In general, using multiple high load capacity rollers in paper processed or membrane process.The roll gap that one double roller is occurred when engaging and rotating The variation of width has an impact the disqualification rate and productivity of product.About the variation of roll-gap width, although by roller itself Out of roundness and straightness influence, but as being broken caused by constitutional balance because of nip pressure.

Lead to following problems because of the uneven thickness of film：Because of the pressure pressurizeed in the both sides of the edge of roller to roller Machine and pressure focuses on edge, thus occur film with from center close to edge gradually thinning protuberance (crown) phenomenon, or The edge wave (edge wave) or shape defect (build up) and film cutting that the flatness of the two edges of generation film is suppressed When curling (curl) phenomenon etc. for rolling.

It is disclosed in previous technology and forms the curved technology reinforced wheel and reinforced pipe and prevent roller in the inside of roller, but In the presence of the pressure for concentrating on both ends by the pressurization of presser unit effectively can not be dispersed or can not prevent pressure from concentrating The problem of.

Utility model content

The utility model is as described above, and it is an object of the present invention to provide a kind of following roller in order to solve the problems, such as：By the inside of roller Deformation accommodation space absorb the deformation axis or pipe caused by the pressure that the edge of upper roll applies, thus prevent The variation of roll-gap width.

In order to solve above-mentioned problem, the utility model roll-gap width variation prevent be with roller include upper roll and lower part One double roller of roller, which is characterized in that the axis of above-mentioned upper roll and each free transmitting rotary power of lower rollers and the above-mentioned axis of encirclement Pipe is constituted, and above-mentioned upper roll is formed with deformation accommodation space in the inside at the both ends of pipe, and above-mentioned deformation accommodation space is being pressurizeed When absorption axiss deformation.

Be characterized in that, above-mentioned deformation accommodation space using taper blade and formed, the outer peripheral surface of above-mentioned taper blade it is straight With gradually becoming smaller close to edge side, above-mentioned deformation accommodation space is formed between taper blade and pipe diameter.

It is characterized in that, further includes elastomeric cap, above-mentioned elastomeric cap is formed in the outer peripheral surface of above-mentioned pipe and absorption pressure.

The roll-gap width variation of the utility model prevents from automatically absorbing or change institute by adjusting unit with roller The pressure of application, the thickness that is occurred is bad when so as to solve to pressurize to film.

In addition, form elastomeric cap in the external of roller, it is unbalanced to absorb a certain range pressure below by elastomeric cap, thus Protuberance phenomenon etc. can be prevented, and the breakage of the film of breakage or the rolling of the roller surface as caused by stronger pressure can be prevented.

The utility model can be used in need to carry out thickness film as the paper of accurate control, light polarizing film stretching, It washs, dry, suppressing, coating, printing process.

Detailed description of the invention

Fig. 1 is the sectional view of the upper roll of the utility model.

Fig. 2 is the sectional view for indicating the active state of upper roll and lower rollers of the utility model.

Fig. 3 is the decomposition section of the upper roll of the utility model.

Fig. 4 is the exploded perspective view of the upper roll of the utility model.

Specific embodiment

The utility model in order to solve the pressure in pressurization focus on roller both sides of the edge and film with from center close to side The edge wave or shape defect and film cutting that the flatness of edge gradually two edges of thinning protuberance phenomenon or film is suppressed When the crimp rolled etc. because film uneven thickness caused by problems, include absorbing deformation in the inside of upper roll Adjust unit.Adjusting unit can be the deformation accommodation space formed and taper blade 10 for the inside for being inserted in pipe 20 100 etc..

Fig. 1 is the sectional view of the upper roll of the utility model, and upper roll includes：Cylindric pipe 20；Inner tube comprising pass through The inside of poling 20 and the axis S of transmitting rotary power；And multiple taper blades 10, inner tube is equally spaced welded and fixed in they Outer peripheral surface and in pressurization absorption axiss S deformation.

Fig. 2 is the sectional view for indicating the active state of upper roll and lower rollers, and lower rollers receive power by chain etc. And rotated, upper roll is contacted by the pressurization of press machine with lower rollers, and receive from the power that lower rollers are transmitted come into Row engagement rotation.

Upper roll is formed with the deformation accommodation space 100 of the deformation of absorption axiss S, and diameter is with direction in taper blade 10 Outside and narrow to form taper, which is equally spaced welded and fixed the outer peripheral surface of inner tube, and axis S runs through taper leaf The inside of piece 10 and be fixed.

In addition, taper blade 10 has the shape for separating specified interval and surrounding inner tube, outer peripheral surface is formed with by near side (ns) The taper that edge side and radius reduce, is welded in the mode for keeping the side of narrowly formed taper of inner peripheral surface relative to each other, And makes 20 pyrocondensation of pipe and be fixed.

When being pressurizeed by press machines such as hydraulic cylinders come the two sides of the axis S to upper roll, pass through the reaction force from film, axis S is bent into arch.The edge of bending in this way, roll-gap width becomes smaller, and central portion broadens, and center occurs on manufactured film The thick protuberance phenomenon in part, but have to edge side by taper blade in the present invention and form to obtain wider shaft distortion Accommodation space 100, the thus deformation of absorption axiss S, therefore the bending of roller itself will not occur.

Lower rollers are the rollers for not having the general flat condition of deformation accommodation space.By being provided with for the applicant's research and development In the case where the top and the bottom roller for deforming accommodation space, the axis of up-down rollers be not constant and the problem of lead to destruction of balance, therefore this Utility model only forms deformation accommodation space in upper roll, and lower rollers execute the effect of fixing axle, thus solve the problems, such as.

Fig. 4 is the exploded perspective view of upper roll, and roller includes pipe 20, taper blade 10, reinforces flange 40, in the inner circumferential of pipe 20 With multiple strengthening wings 50 of radial formation, flange 31, compressive resilience pad 32, pipe boss 33 and ending flange between face and axis S 34。

Elasticity and the thickness of compressive resilience pad are adjusted deformation accommodation space is adjusted.

Even if the utility model provide it is a kind of by raising bending strength length will not curved high load capacity roller, Between inner tube and pipe 20, it is radial that multiple strengthening wings 50 are continuously provided in the longitudinal direction.In the present invention, " high load capacity " indicates, is not only resistant to the weight of roller itself, but also is resistant to biggish load (not only including tension, but also including pressure) High intensity.

High load capacity roller is rotated by driving units such as motors, therefore in the case where roller is overweight, not only to being rotated Driving device apply excessive load, and many materials are needed in the manufacture of roller.It is therefore preferable that be light as far as possible, and be Be made to it is relatively light, need using light metal or be fabricated to it is thin and thin, and in the case where carrying out such manufacture, bending strength It dies down, when roller is formed as longer, then the problem of middle section is bent occurs.

The utility model is manufactured into as described above in order to provide light and excellent bending strength high load capacity roller by inner tube and pipe 20 dual pipes constituted, thus manufacture into hollow state, so that lightweight is realized, and in order to reinforce bending strength, at two Strengthening wing 50 is provided between pipe.

In order to mitigate weight, inner tube is constituted by hollow pipe, is equally spaced on length in the multiple strengthening wings 50 of outer surface Degree is continuously set as radial on direction.About the method for the outer surface that above-mentioned strengthening wing 50 is fixed to inner tube, can carry out each Kind deforms and implements, but integration can be realized by welding, and only welds at certain intervals on the face that strengthening wing is contacted with inner tube It connects a part or welds the entire part to be connected.

For pipe 20 as the hollow pipe being arranged in a manner of surrounding the outer surface of the integrated inner tube of strengthening wing, inner face is tight It is attached to the end towards the outside of strengthening wing 50.

In the case where the length of high load capacity roller, need to increase the heating furnace for being used for heating tube 20, when in hot pressing When the other end being pressed into journey is cooled, press-fitting step is possible to failure.In this case, pipe 20 is divided into 2 More than, the pipe 20 of segmentation is inserted into and is assembled into from the both ends of inner tube the outside of inner tube, then will be formed in end relative to each other It welds and is connected to each other in the welding inclined surface of the outer surface in portion.To welding portion grind and by surfacing, thus keep and its The identical surface roughness of pipe 20 of his part.

Elastomeric cap 60 be formed as surround pipe 20 outer peripheral surface form, by pressurization when the reaction force from film be absorbed into Until the pressure limit of elastomeric cap 60.Preferably, reaction force generated when pressurizeing is absorbed into pressure circle of elastomeric cap 60 It is limited to only and then is added by the deformation accommodation space 100 for the deformation for accommodating above-mentioned axis S or pipe 20 absorb.In addition, elastomeric cap 60 are preferably formed by buffering sense and the excellent rubber of impact absorbency (NBR) material, but not limited to this.

Claims (4)

1. It is the double roller for including upper roll and lower rollers 1. a kind of roll-gap width variation prevents from using roller, which is characterized in that

   The axis of above-mentioned upper roll and each free transmitting rotary power of lower rollers and the pipe for surrounding above-mentioned axis are constituted,

   Above-mentioned upper roll is formed with deformation accommodation space in the inside at the both ends of pipe, and above-mentioned deformation accommodation space is inhaled in pressurization Receive the deformation of axis.
2. 2. roll-gap width variation according to claim 1 is prevented with roller, which is characterized in that

   Above-mentioned deformation accommodation space is formed using taper blade, and the diameter of the outer peripheral surface of above-mentioned taper blade is with by proximal edge Side gradually becomes smaller.
3. 3. roll-gap width variation according to claim 2 is prevented with roller, which is characterized in that

   Above-mentioned deformation accommodation space is formed between taper blade and pipe.
4. 4. roll-gap width variation according to claim 1 is prevented with roller, which is characterized in that

   Roll-gap width variation prevents from roller further including elastomeric cap, and above-mentioned elastomeric cap is formed in the outer peripheral surface of above-mentioned pipe and absorbs pressure Power.