CN217756145U

CN217756145U - Wrinkle removing roller and flexographic printing machine

Info

Publication number: CN217756145U
Application number: CN202221038984.9U
Authority: CN
Inventors: 曹剑锋
Original assignee: Kesida Xiamen Health Co ltd
Current assignee: Kesida Xiamen Health Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-08
Anticipated expiration: 2032-04-29

Abstract

The utility model provides a remove wrinkle roller and flexographic printing machine, includes the roll body, its characterized in that: the surface of the roller body is provided with a first wrinkle removing module, a second wrinkle removing module and a third wrinkle removing module; the first wrinkle removing module is arranged on the periphery of the middle part of the roller body and is axially vertical to the roller body; the second wrinkle removing module is arranged on the periphery of the left side part of the roller body and inclines leftwards, and the third wrinkle removing module is arranged on the periphery of the right side part of the roller body and inclines rightwards. The utility model discloses a remove the wrinkle module and pull open the film to both sides to realize getting rid of the fold on the film, remove the wrinkle effectual, effectively avoid the film to warp, improve product quality.

Description

Wrinkle removing roller and flexographic printing machine

Technical Field

The utility model relates to a roller field, especially a remove wrinkle roller and flexographic printing machine.

Background

In the related production and use processes of soft low-gram-weight low-tension films such as PE (polyethylene), EVA (ethylene vinyl acetate), and the like, wrinkles are easy to appear in the manufactured film due to the reasons of uneven film thickness, uncomfortable tension and the like, and the wrinkles on the film are easy to judge as defects in related defect detection, so that a large amount of error detection is generated to cover real defect data; in addition, after entering the compression roller traction device, the film with the wrinkles is easy to have unrecoverable wrinkles; the measured value of the thickness of the wrinkled film entering the thickness gauge is easy to be inaccurate; wrinkle removal is required because wrinkles are likely to be removed when a film having wrinkles is slit or trimmed, because the width of the slit tends to fluctuate and a cut tends to be formed. The traditional wrinkle removing method comprises the steps of adopting a twill wrinkle removing roller, a banana wrinkle removing roller (an arc wrinkle removing roller), a rotary expansion roller and the like. However, these methods require a relatively large tension to be effective, and are not preferred at low tensions. If the tension is simply increased, the material is elongated and permanently deformed, the quality of a product later is affected by the high tension, and the problems of high middle tension and low tension at two sides in the film surface width direction are easily caused by using the arc-shaped wrinkle removing roller.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes the defect that current wrinkle roller exists, provides a wrinkle roller and flexographic printing machine remove, removes that the wrinkle is effectual, effectively avoid the film to warp, improve product quality.

The utility model adopts the following technical scheme:

the utility model provides a wrinkle removing roller, includes the roll body, its characterized in that: the surface of the roller body is provided with a first wrinkle removing module, a second wrinkle removing module and a third wrinkle removing module; the first wrinkle removing module is arranged on the periphery of the middle part of the roller body and is axially vertical to the roller body; the second wrinkle removing module is arranged on the periphery of the left side part of the roller body and inclines leftwards, and the third wrinkle removing module is arranged on the periphery of the right side part of the roller body and inclines rightwards.

Preferably, the first wrinkle removing module comprises a plurality of clusters of tows, and the plurality of clusters of tows are uniformly distributed on the periphery of the middle part of the roller body.

Preferably, the second wrinkle removing module comprises a plurality of tow groups arranged in parallel at intervals along the circumferential direction of the roller body, each tow group is provided with a plurality of tows arranged at intervals along a first direction, and an included angle between the first direction and a radial extension line of the roller body is 60-85 degrees; one end of the cluster silk bundles is fixed on the roller body, and the other end of the cluster silk bundles inclines to the left.

Preferably, in each tow group of the second wrinkle chasing module, an included angle between the tow and a radial extension line of the roller body gradually increases leftwards along the first direction.

Preferably, the third wrinkle removing module comprises a plurality of tow groups arranged in parallel at intervals along the circumferential direction of the roller body, each tow group is provided with a plurality of tows arranged at intervals along a second direction, and an included angle between the second direction and a radial extension line of the roller body is 60-85 degrees; one end of the cluster silk bundles is fixed on the roller body, and the other end of the cluster silk bundles inclines rightwards.

Preferably, in each group of tows, the included angle between the tows and the radial extension line of the roller body gradually increases rightward along the second direction.

Preferably, the central distance between the circumferentially adjacent tows is 7mm-20mm, and the central distance between the axially adjacent tows is 5mm-20mm in diameter.

Preferably, the diameter of each cluster of the tows is 0.5mm-10mm, and the length of each cluster of the tows is 5mm-20mm.

Preferably, the filament bundle comprises a plurality of filaments, the filaments are fiber filaments or plastic filaments, and the diameter of each filament is 0.5mm-1.2mm.

The utility model provides a flexographic printing machine, includes the printing machine main part, its characterized in that: at least one wrinkle removing roller is further included.

From the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. in the utility model, a first wrinkle removing module, a second wrinkle removing module and a third wrinkle removing module are arranged on the surface of the roller body; the first wrinkle removing module is arranged at the periphery of the middle part of the roller body, the second wrinkle removing module is arranged at the periphery of the left side part of the roller body and inclines leftwards, the third wrinkle removing module is arranged at the periphery of the right side part of the roller body and inclines rightwards, and the second wrinkle removing module and the third wrinkle removing module are utilized to drive the film to be pulled open towards two sides, so that wrinkles on the film are removed, and the product quality is improved.

2. The utility model discloses in, the second removes wrinkle module and the third removes the tow group that the wrinkle module was equipped with a plurality of groups and set up along the parallel interval of roll body circumference, and every tow group is equipped with a plurality of bunches of tows along first direction interval arrangement, utilizes the tow to act on the film, and the effort is moderate, and every bunch of tows is equipped with a plurality of filaments, and thousands of filaments top area film pulls open to both sides, produces innumerable even expansion power, can avoid the film to warp, and it is better to remove the wrinkle effect.

3. The utility model discloses in, increase at least one and remove the wrinkle roller in the flexographic printing machine, remove the wrinkle through removing the wrinkle roller before including the printing, avoid appearing the wrinkle that can't recover to and avoid because the wrinkle makes the horizontal chromatography of film change, influence the printing chromatography precision; the wrinkle is removed through the wrinkle removing roller before the online defect detection is carried out, so that false alarm can be avoided; set up the wrinkle roller and remove the wrinkle before getting into the coiling mechanism and can make follow-up rolling more level and more smooth.

Drawings

FIG. 1 is a sectional view of the wrinkle removing roller of the present invention;

FIG. 2 isbase:Sub>A view taken along line A-A of FIG. 1;

FIG. 3 is a view from the B-B direction of FIG. 1;

fig. 4 is a schematic distribution diagram of a first wrinkle removing module, a second wrinkle removing module and a third wrinkle removing module at part of a roller body;

FIG. 5 is a block diagram of a flexographic printing press with a de-wrinkling roller;

wherein:

10. the device comprises a roller body, 11, a ball bearing, 20a, a first wrinkle removing module, 20b, a second wrinkle removing module, 20c, a third wrinkle removing module, 21, a tow group, 22, tows, 23, filaments, 30, an unwinding device, 40, a printing device, 41, a traction compression roller, 50, a color register detection device, 60, a drying device, 70, an online defect detection device, 80, a winding device, 90 and a film.

Detailed Description

The present invention will be further described with reference to the following detailed description.

The terms "first", "second", and the like in the present invention are used for convenience of description only to distinguish different constituent elements having the same name, and do not indicate a sequential or primary-secondary relationship.

In the description of the present invention, the directions or positional relationships indicated by "up", "down", "left", "right", "front", and "rear" are used as the directions or positional relationships indicated on the drawings, and are only for convenience of description of the present invention, and it is not intended to indicate or suggest that the device indicated must have a specific direction, be constructed and operated in a specific direction, and therefore, the present invention should not be construed as being limited to the scope of the present invention.

Referring to fig. 1 to 4, the wrinkle removing roller comprises a roller body 10, and a first wrinkle removing module 20a, a second wrinkle removing module 20b, a third wrinkle removing module 20c and the like are arranged on the surface of the roller body 10. This first wrinkle module 20a that removes lays in roll body 10 middle part periphery and with roll body 10 axial vertical, this first wrinkle module 20a that removes includes can a plurality of clusters of silk bundles 22, these a plurality of clusters of silk bundles 22 evenly lay in roll body 10 middle part periphery, have the interval between the adjacent silk bundle 22.

The second wrinkle smoothing module 20b is disposed on the periphery of the left side of the roll body 10 and inclines to the left, and the second wrinkle smoothing module 20b inclines to the left, so that when the roll body 10 rotates, the third wrinkle smoothing module 20c bends to generate an acting force which moves to the left along the axial direction of the roll body 10 on the film product.

Specifically, the second wrinkle removing module 20b includes a plurality of tow groups 21 arranged in parallel at intervals along the circumferential direction of the roller body 10, each tow group 21 is provided with a plurality of tows 22 arranged at intervals along a first direction, and an included angle a1 between the first direction and a radial extension line of the roller body 10 is 60-85 degrees; one end of the tows 22 is fixed on the roller body 10, and the other end inclines leftwards.

Furthermore, in each tow group 21 of the second wrinkle chasing module 20b, the included angle a2 between the tow 22 and the radial extension line of the roller body 10 gradually increases leftwards along the first direction. Specifically, in the second wrinkle removing module 20b, referring to fig. 3, the included angle a2 of the tow closest to the first wrinkle removing module 20a is the smallest, and the value range thereof may be 5 to 25 degrees; the angle a2 of the leftmost filament bundle 22 is the largest and can range from 12 deg. -35 deg., see fig. 2. In addition, the axial included angle a3 between each cluster of tows 22 and the surface of the roller body 10 is, in the second wrinkle removing module 20b, the axial included angle a3 between the tows 22 and the surface of the roller body 10 gradually decreases leftwards along the first direction, the minimum value of a3 ranges from 25 degrees to 75 degrees, and the maximum value of a3 is close to 90 degrees.

The third wrinkle chasing block 20c is disposed at the outer periphery of the right side portion of the roll body 10 and inclined rightward. The third wrinkle-removing module 20c is inclined to the right, so that when the roller body 10 rotates, the third wrinkle-removing module 20c bends to generate an acting force to the film product to the right along the axial direction of the roller body 10.

Specifically, the third wrinkle removing module 20c includes a plurality of tow groups 21 arranged in parallel at intervals along the circumferential direction of the roller body 10, each tow group 21 is provided with a plurality of tows 22 arranged at intervals along a second direction, and an included angle b1 between the second direction and a radial extension line of the roller body 10 is 60-85 degrees; one end of the bunches of tows 22 is fixed on the roller body 10, and the other end is inclined to the right.

Further, in each tow group 21 of the third wrinkle chasing module 20c, the included angle between the tow 22 and the radial extension line of the roller body 10 gradually increases rightward along the second direction. Specifically, in the third wrinkle chasing module 20c, the included angle b2 of the tow 22 closest to the first wrinkle chasing module 20a is the smallest, and the value range thereof may be 5 ° to 25 °; the rightmost filament bundle 22 has the largest included angle b2, which may range from 12 ° to 35 °. In addition, an axial included angle b3 between each tow 22 and the surface of the roller body 10 is smaller than the axial included angle b3 between the tow 22 and the surface of the roller body 10 in the third wrinkle removing module 20c, the axial included angle b3 between the tow 22 and the surface of the roller body 10 is gradually reduced rightward along the second direction, the minimum value of b3 ranges from 25 degrees to 75 degrees, and the maximum value of b3 is close to 90 degrees.

The utility model discloses in, first remove during wrinkle module 20a, second remove wrinkle module 20b and third remove wrinkle module 20c, through rationally setting up distance between the adjacent silk bundle 22 to realize better wrinkle effect that removes. Specifically, the center distance s2 between circumferentially adjacent tows 22 is 7-20mm, and the center distance s1 between axially adjacent tows 22 is 5-20 mm.

Furthermore, the diameter of each cluster of the tows 22 of the utility model is 0.5mm-10mm, and the length is 5mm-20mm. Each cluster of filament bundles 22 comprises a plurality of filaments 23, the filaments 23 are fiber filaments or plastic filaments, the diameter of each filament 23 is 0.5mm-1.2mm, and the bending recovery rate of the filament is more than 85%. The plastic wires can be made of chemical synthetic plastic materials, such as polyamide PA, polypropylene PP, polyethylene terephthalate PET, polyvinyl chloride and the like. The fiber can be natural fiber such as plant bristles such as palm and sisal, animal bristles, pig bristles, etc.

In the present invention, the roller body 10 may be cylindrical, and the length may be 450mm to 2800mm, and the roller body 10 is made of a light material, such as aluminum. The roller body 10 is provided with ball bearings 11 at both ends thereof to reduce the rotational resistance thereof. The first wrinkle smoothing module 20a covers an area smaller than that of the second wrinkle smoothing module 20b, and the first wrinkle smoothing module 20a covers an area smaller than that of the third wrinkle smoothing module 20 c. The second and

third de-wrinkling modules

20b, 20c may cover the same area and may be arranged symmetrically.

The utility model discloses a when removing the wrinkle roller and rotating, the film is pressed at every bunch of tow 22 top surfaces, every filament 23 pressurized back, the second removes wrinkle module 20 b's crooked left, its tow 22 top drives the film left side and removes left, and on the same hand, the third removes wrinkle module 20c crooked right, its tow 22 drives the film right side and removes right, thousands of filaments 23 tops take the film to pull open to both sides like this, produce innumerable even expansion power, thereby get rid of the fold on the film.

The utility model also provides a flexographic printing machine, including printing machine main part and an at least foretell wrinkle roller that removes, this printing machine main part can include unwinding device 30, printing device 40, chromatography detection device 50, drying device 60 that set gradually according to the printing process, this unwinding device 30 is used for the feed, this printing device 40 is used for carrying out the flexographic printing, chromatography detection device 50 is used for detecting the chromatography, this drying device 60 is used for drying, this online defect detection 70 is used for detecting the defect, this coiling device 80 is used for the rolling.

Wherein, printing device 40 input is equipped with pulls compression roller 41, sets up the wrinkle smoothing roller before getting into and pulls compression roller 41 and remove the wrinkle, avoids appearing unable recovered wrinkle to and avoid making the horizontal chromatography change of film 90 because of the wrinkle, influence printing chromatography precision.

After the film 90 comes out of the drying device 60, if the film enters the online defect detection device 70 for defect detection, a wrinkle removing roller is also arranged before the film enters the online defect detection device 70 for wrinkle removal, so that false alarm of the online defect detection device 70 is avoided.

Further, a wrinkle removing roller is arranged between the online defect detecting device 70 and the winding device 80, namely, before the film 90 is wound, wrinkles are removed to enable subsequent winding to be smoother.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides a wrinkle removing roller, includes the roll body, its characterized in that: the surface of the roller body is provided with a first wrinkle removing module, a second wrinkle removing module and a third wrinkle removing module; the first wrinkle removing module is arranged on the periphery of the middle part of the roller body and is axially vertical to the roller body; the second wrinkle removing module is arranged on the periphery of the left side part of the roller body and inclines leftwards, and the third wrinkle removing module is arranged on the periphery of the right side part of the roller body and inclines rightwards.

2. A wrinkle removing roller as defined in claim 1, wherein: the first wrinkle removing module comprises a plurality of bunches of tows, and the bunches of tows are uniformly distributed on the periphery of the middle part of the roller body.

3. A wrinkle removing roller as defined in claim 1, wherein: the second wrinkle removing module comprises a plurality of tow groups which are arranged in parallel at intervals along the circumferential direction of the roller body, each tow group is provided with a plurality of tows which are arranged at intervals along a first direction, and the included angle between the first direction and the radial extension line of the roller body is 60-85 degrees; one end of each cluster of silk bundles is fixed on the roller body, and the other end of each cluster of silk bundles inclines leftwards.

4. A wrinkle removing roller as defined in claim 3, characterized in that: in the second wrinkle removing module, in each tow group, the included angle between the tow and the radial extension line of the roller body gradually increases leftwards along the first direction.

5. A wrinkle removing roller as defined in claim 1, wherein: the third wrinkle removing module comprises a plurality of tow groups which are arranged in parallel at intervals along the circumferential direction of the roller body, each tow group is provided with a plurality of tows which are arranged at intervals along a second direction, and the included angle between the second direction and the radial extension line of the roller body is 60-85 degrees; one end of the cluster silk bundles is fixed on the roller body, and the other end of the cluster silk bundles inclines rightwards.

6. A wrinkle removing roller as defined in claim 5, wherein: in each group of tow groups, the included angle between the tow and the radial extension line of the roller body gradually increases rightward along the second direction.

7. A wrinkle removing roller as claimed in claim 2, 3, 4 or 5, characterized in that: the center distance between the circumferentially adjacent tows is 7mm-20mm, and the center distance between the axially adjacent tows in diameter is 5mm-20mm.

8. A wrinkle-removing roll as claimed in claim 2, 3, 4 or 5, characterized in that: the diameter of each cluster of the tows is 0.5mm-10mm, and the length of each cluster of the tows is 5mm-20mm.

9. A wrinkle-removing roll as claimed in claim 2, 3, 4 or 5, characterized in that: the filament bundle comprises a plurality of filaments, the filaments are fiber filaments or plastic filaments, and the diameter of each filament is 0.5mm-1.2mm.

10. A flexographic printing press comprising a press body, characterized in that: also included is at least one wrinkle-removing roll as claimed in any one of claims 1 to 9.