CN210655580U

CN210655580U - Stretching roller

Info

Publication number: CN210655580U
Application number: CN201920906569.2U
Authority: CN
Inventors: 刘华文; 吕晓军; 董文渊; 邱义超; 梁正军; 饶海林
Original assignee: Lamican Packaging Kunshan Co ltd
Current assignee: Lamican Packaging Kunshan Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-06-02
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a spreader roller, which relates to paper material production equipment, comprising a roller, a roller shaft and a spreader sleeve, wherein the roller shaft is tightly sleeved in a central hole of the roller, the roller shaft is a passive rolling shaft, the surface of the spreader sleeve is respectively provided with a thread-shaped groove and a spreader belt with opposite rotation directions by extending from the middle to two ends, the grooves and the spreader belts of the spreader sleeves on two sides contract inwards along the rotation direction of the roller, the spreader roller utilizes the roller to primarily spread an aluminum foil, under the driving of the spreader sleeve by the passive rotation of the roller shaft, the spreader belt and static friction force and deformation thrust generated by the aluminum foil act on the surface of the aluminum foil together, the aluminum foil is spread towards two sides, and because of the arc structure of the spreader sleeve towards the outer side, in the process of spreading by contacting with the aluminum foil, the flexibility of the aluminum foil is ensured, the spreading and tearing is prevented, thereby the operation of spreading the aluminum foil with high-speed rotation is extremely convenient, and meanwhile, the phenomena of wrinkles and embossing are solved.

Description

Stretching roller

Technical Field

The utility model relates to a paper material production facility, concretely relates to stretch out roller of aseptic package material aluminium foil composite paper.

Background

On the automatic coil feeder bed of aseptic package material paper, with the integrative bonded last complex process of multilayer paper and aluminium foil very crucial, before aluminium foil and paper material are compound, all need fully open the paper-back with both, neither expand to tear, do not shrink again and crumple, roll the flat in-process of exhibition on high-speed roller axle, it is inconvenient to the exhibition flat operation of aluminium foil.

Traditional roller is the smooth face of cylinder mostly, perhaps has to increase design zigzag shape dermatoglyph structure, carries out the limit to the aluminium foil and rolls the material limit and stretch out, but is not good to the flat effect of exhibition of aluminium foil on high-speed moving roller, and the clearance between the dermatoglyph is too big can lead to the aluminium foil serious sunken to appear, and the phenomenon of no exhibition flat effect also can appear in the clearance undersize, equally still can appear fold, impressed watermark on the aluminium foil surface.

Disclosure of Invention

The utility model discloses the purpose is: in order to solve the problems mentioned in the background art, the stretching roller for the aluminum foil material can fully stretch the aluminum foil material while rotating at a high speed, does not expand or tear, does not contract or wrinkle, and effectively solves the problems of wrinkling and embossing when the sterile packaging material aluminum foil composite paper is produced.

The technical scheme adopted for solving the problems is as follows:

a stretching roller comprises a roller cylinder, a roller shaft and a stretching sleeve, wherein the roller shaft is tightly sleeved in a central hole of the roller cylinder, the roller shaft is a driven rolling shaft, grooves and stretching belts which are threaded and have opposite rotation directions are respectively arranged on the surface of the stretching sleeve by extending from the middle part to two ends,

both sides the telescopic slot of stretching is followed with the stretching area the inside shrink of roller rotation direction, promptly the left side axle head of roller rotation direction is anticlockwise, the slot is the dextrorotation direction with the stretching area, the right side axle head of roller rotation direction is clockwise, the slot is the levogyration direction with the stretching area.

Furthermore, an outer cylindrical curved surface formed by the stretching belt of the stretching sleeve is arranged at the extending positions of the two ends of the roll shaft in a certain radian.

Furthermore, the axial sections of the extending belts and the grooves are approximately in the shape of a parallelogram, and the upper surfaces of the extending belts are coplanar curved surfaces.

Furthermore, in the axial section of the stretching belt, the upper curved surfaces of the stretching belt incline and deflect towards the rollers, the inclined angles of the left and right parallel sides of the parallelogram are the same, and the range of the inclined angles is 5-15 degrees.

Further, the width of the groove is the width of the gap between the extending belts, and the width range is 2% -15% of the width of the extending belts.

Further, the material of the stretching belt is hard rubber or silica gel.

The utility model has the advantages that: this roll of unfolding utilizes the roller to tentatively flatten the aluminium foil, under the aluminium foil of both sides is driven with the help of the roller passive pivoted by the extension sleeve, the static friction and the deformation thrust combined action that extension area and aluminium foil produced are when the aluminium foil surface, unfold the aluminium foil to both sides, and because the arc structure of extension sleeve to the outside, at the in-process of unfolding with the aluminium foil contact, guarantee the pliability of aluminium foil, prevent the expansion tear, and then it is extremely convenient at high-speed pivoted aluminium foil exhibition operation, solve the fold simultaneously, the impressed watermark phenomenon.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings provided in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic structural view of a spreader roll of the present embodiment;

fig. 2 is a front view of the spreader roll of the present embodiment;

fig. 3 is an axial cross-sectional view of the spreader roll of the present embodiment;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is a schematic view of the static friction force and the deformation reverse thrust force generated by the spreader belt and the aluminum foil according to the embodiment;

wherein 1-roll, 2-roll, 3-spreader, 31-spreader, 32-groove, 33-cylindrical curved surface, 4-aluminum foil, in particular, F_QuietStatic friction force of the spreader strip against the aluminium foil, F_{Push away}-a deformation counterthrust of the spreader strip against the aluminium foil.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, the present embodiment provides a stretching roller, which includes a roller barrel 1, a roller shaft 2 and a stretching sleeve 3, wherein the roller shaft 2 is tightly sleeved in a central hole of the roller barrel 1, the roller shaft 2 is a passive rolling shaft, and a groove 32 and a stretching belt 31, which are threaded and have opposite rotation directions, are respectively extended from the middle to two ends of the surface of the stretching sleeve 3.

Both sides the slot 32 and the extension of extension sleeve 3 take 31 to follow roller 1 direction of rotation is the internal contraction of direction, promptly roller 1 direction of rotation's left side axle head is anticlockwise, slot 32 and extension take 31 to be the dextrorotation direction, roller 1 direction of rotation's right side axle head is clockwise, slot 32 and extension take 31 to be the levogyration direction.

In a further embodiment, the outer cylindrical curved surface 33 formed by the stretching belt 31 of the stretching sleeve 3 is arranged in a certain radian towards the extending positions of the two ends of the roll shaft 2.

In a further embodiment, the axial cross-sections of the stretching strips 31 and the grooves 32 are approximately parallelogram, and the upper surfaces of the stretching strips 31 are all coplanar curved surfaces.

In a further embodiment, the upper curved surface of the stretching belt 31, which is approximately in the shape of a parallelogram, is inclined toward the roller 1 in the axial section, and the inclination angles of the left and right parallel sides of the parallelogram are the same, and the inclination angle ranges from 5 ° to 15 °.

In a further embodiment, the width of the grooves 32 is the width of the gaps between the spreader strips 31, and the width is in the range of 5% of the width of the spreader strips 31.

In a further embodiment, the material of the stretch band 31 is hard rubber.

The working principle is as follows: the stretching roller utilizes the roller 1 to primarily stretch the aluminum foil 4, the aluminum foil 4 at two sides is driven by the stretching sleeve 3 through the roller shaft 2 to rotate, referring to fig. 5, the static friction force F generated by the stretching belt 31 and the aluminum foil 4_QuietAnd deformation counterthrust F_{Push away}When the combined action is on 4 surfaces of aluminum foil, the aluminum foil 4 is unfolded towards two sides, and because the unfolding sleeve 3 is in an arc structure towards the outer side, the flexibility of the aluminum foil is ensured in the process of contacting with the aluminum foil 4 to unfold, the aluminum foil is prevented from being torn by expansion, the aluminum foil flattening operation rotating at high speed is extremely convenient, and the phenomena of folding and embossing are solved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a roll of stretching, includes roller, roller axle and sleeve of stretching, its characterized in that:

the roller shaft is tightly sleeved in the central hole of the roller, the roller shaft is a driven rolling shaft, the surface of the stretching sleeve barrel extends from the middle to the two ends and is respectively provided with a thread-shaped groove and a stretching belt with opposite rotation directions,

the grooves and the extension belts of the extension sleeves on the two sides are inwards contracted along the rotation direction of the roller, namely, the left shaft end of the rotation direction of the roller is anticlockwise, the grooves and the extension belts are rightwards rotated, the right shaft end of the rotation direction of the roller is clockwise, the grooves and the extension belts are leftwards rotated,

the outer cylindrical curved surface formed by the stretching belt of the stretching sleeve is arranged to extend towards the two ends of the roll shaft to form a certain radian,

the axial sections of the stretching belts and the grooves are approximately in a parallelogram shape, and the upper surfaces of the stretching belts are coplanar curved surfaces.

2. A spreader roll according to claim 1, characterised in that: the stretching belt is characterized in that on the axial section, the upper curved surface is inclined and deviated to the roller, the inclined angles of the left and right parallel sides of the parallelogram are the same, and the inclined angle range is 5-15 degrees.

3. A spreader roll according to claim 1, characterised in that: the width of the groove is the width of the gap between the stretching belts, and the width range is 2% -15% of the width of the stretching belts.

4. A spreader roll according to claim 1, characterised in that: the stretching belt is made of hard rubber or silica gel.