CN110713053A - Knife roller assembly for film preparation device and film preparation device - Google Patents
Knife roller assembly for film preparation device and film preparation device Download PDFInfo
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- CN110713053A CN110713053A CN201910967872.8A CN201910967872A CN110713053A CN 110713053 A CN110713053 A CN 110713053A CN 201910967872 A CN201910967872 A CN 201910967872A CN 110713053 A CN110713053 A CN 110713053A
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- cutter
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- knife roll
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
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Abstract
The invention discloses a knife roller component for a film preparation device and the film preparation device, the knife roller component for the film preparation device comprises: the cutter roller is provided with a plurality of driving sections and a plurality of cutting sections, and the driving sections and the cutting sections are alternately arranged along the axial direction of the cutter roller; the friction increasing pieces are sleeved on the driving section; the bottom cutters are sleeved on the cutting sections, and the outer peripheral surfaces of the friction increasing pieces are located on the outer sides of the outer peripheral surfaces of the bottom cutters in the radial direction of the cutter roller. According to the knife roller assembly for the film preparation device, the appearance quality and the optical performance of the film can be improved, the use requirements of users are met, the yield is improved, and the cost is lower.
Description
Technical Field
The invention relates to the technical field of optical films, in particular to a knife roller assembly for a film preparation device and the film preparation device with the knife roller assembly for the film preparation device.
Background
With the rapid development of the flat panel display field, the optical thin film is used as a key raw material of the flat panel display, and the market of the optical thin film is in rapid expansion. In order to meet the requirements of flat panel displays of different sizes, optical films are provided with a plurality of specifications, namely, the films are cut in the width direction of the films according to the requirements of users, and the films with effective widths are rolled into final products.
The film is cut by two annular cutters consisting of a bed knife and a cutter in a rolling way, the cutter is driven by a motor to rotate, and the bed knife is tangent to the cutter under the action of the traction force of the film. Because the roller surface of the bottom knife roller is a metal smooth surface, the friction force between the film and the smooth surface of the bottom knife roller is small, when the film is subjected to the occlusion resistance of the cutting tool, the film and the bottom knife can be relatively displaced, so that the surface of the film is elongated and shiny, and the product is scrapped. In addition, in order to conveniently switch products with different width specifications on line, the bottom knife roller can be provided with a plurality of bottom knives, and the corresponding cutters are matched with the bottom knives to be occluded and cut. In the cutting process, part of the bed knives may be in an idle state, when the film passes through the idle bed knives, the film is dragged and tensioned, the film may be sunk into the knife grooves of the bed knives, the knife edges of the bed knives or the knife groove edges of the bed knives damage the film, and even the film is wrinkled and scrapped. The disadvantages of appearance and optical properties of optical films caused by cutting have been a technical problem that those skilled in the art have attempted to overcome.
In the related art, aiming at the problems of scratching and punch marks of the bottom knife roll, if the bottom knife roll made of other materials, such as an alumina roll, is tried to be adopted, in order to ensure that the bottom knife roll is not scratched, the surface roughness of the alumina roll is lower, the friction force between the surface of the alumina roll and the surface of a film is smaller, and the film cannot effectively drive the alumina roll to rotate; if the rubber coating roller is selected, when the rubber coating texture on the surface of the rubber coating roller is soft, the film can deform under stress, and when the rubber coating texture on the surface of the rubber coating roller is hard, the rubber coating roller can easily become smooth, crack and age along with the drying of the environment, and the rubber coating roller can easily adsorb dust and has larger static electricity.
Patent CN201920345215.5 discloses a film splitter, wherein cut blade roller and the knife rest roller that sets up including the upper and lower correspondence in the mechanism, the blade roller includes roller blade holder and annular blade, is provided with the recess with the annular blade one-to-one on the knife rest roller. The device can not solve the problem that the film is scratched because the film moves to one side close to the bottom knife in the cutting process under the action of tension dragging, and the problems of damage to the film and wrinkling caused by the knife edge and the knife groove of an idle bottom knife.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the knife roller assembly for the film preparation device can improve the appearance quality and the optical performance of the film, meet the use requirements of users, improve the yield and is low in cost.
The invention also provides a film preparation device with the knife roller assembly for the film preparation device.
According to an embodiment of the first aspect of the present invention, a knife roller assembly for a thin film preparation apparatus includes: the cutter roller is provided with a plurality of driving sections and a plurality of cutting sections, and the driving sections and the cutting sections are alternately arranged along the axial direction of the cutter roller; the friction increasing pieces are sleeved on the driving section; the bottom cutters are sleeved on the cutting sections, and the outer peripheral surfaces of the friction increasing pieces are located on the outer sides of the outer peripheral surfaces of the bottom cutters in the radial direction of the cutter roller.
According to the knife roll assembly for the film preparation device, the friction increasing piece is used for wrapping the knife roll, the film is in direct contact with the outer surface of the friction increasing piece, and the friction force between the film and the friction increasing piece is large, so that the film can be prevented from sliding, the relative displacement between the film and the bottom knife is avoided, the scratch of the film is prevented, the appearance quality and the optical performance of the film can be improved, and the use requirements of users are met; in addition, in the cutting process, due to the existence of the friction increasing piece, a certain gap exists between the film and the outer peripheral surface of the bottom cutter, and the suspension cutting effect is met, so that the film can be prevented from entering a cutter groove of the bottom cutter when passing through the idle bottom cutter, damage to the film and scrapping of wrinkles are prevented, and the yield is improved; in addition, the friction increasing piece is easy to replace, the problem of high replacement cost caused by scratching of the metal roller surface is solved, and the cost is low.
In addition, the knife roller assembly for the film preparation device according to the embodiment of the invention has the following additional technical characteristics:
according to some embodiments of the invention, a distance between the outer circumferential surface of the friction increasing member and the outer circumferential surface of the bed knife in a radial direction of the knife roll is 0.2mm to 0.5 mm.
According to some embodiments of the invention, the friction increasing member is a cylindrical elastic member, and an inner diameter of the friction increasing member in an initial state is 40% -50% of a diameter of the driving section.
According to some embodiments of the invention, the friction increasing member is a knitted member.
According to some embodiments of the invention, the friction increasing member has a thickness of 0.4mm to 0.6mm in a radial direction of the knife roll.
According to some embodiments of the present invention, the knife roll assembly for a thin film preparation apparatus further comprises: the clamping ring is sleeved on the cutting section, two end faces of the clamping ring respectively abut against the end face of the driving section and the end face of the bed knife, and the outer peripheral face of the clamping ring is located on the inner side of the outer peripheral face of the bed knife in the radial direction of the knife roll.
In some embodiments of the present invention, an end surface of the snap ring facing the bed knife is provided with a positioning protrusion protruding toward the bed knife, the end surface of the positioning protrusion abuts against the end surface of the bed knife, and an outer circumferential surface of the positioning protrusion is located inside an outer circumferential surface of the bed knife in a radial direction of the knife roll.
In some embodiments of the present invention, the height of the positioning projection in the axial direction of the knife roll is 2mm to 4 mm.
In some embodiments of the present invention, an end of the friction increasing member adjacent to the snap ring has an end surface, and the end surfaces of the friction increasing member respectively abut against an end surface of the driving section and an end surface of the snap ring.
According to a second aspect of the present invention, a thin film formation apparatus includes: a knife roller assembly for a thin film preparation device according to an embodiment of the first aspect of the invention; the knife roller is rotatably arranged on the mounting bracket; the cutter assembly comprises a driving piece and a cutter, the cutter is in transmission connection with the driving piece so as to be driven to rotate by the driving piece, the plane where the cutter is located is parallel to the plane where the bottom cutter is located, the end face of the cutter is partially attached to the end face of the bottom cutter, and the projection of the cutter and the projection of the bottom cutter are in the radial maximum overlapping width of the cutter roller and are 1.5-2.5 mm.
According to the film preparation device provided by the embodiment of the invention, the knife roller assembly for the film preparation device is utilized, so that the relative displacement between the film and the bottom knife can be avoided, the scratch of the film is prevented, the appearance quality and the optical performance of the film can be improved, and the use requirements of users are met; the film can be prevented from sinking into the cutter groove of the bottom cutter when passing through the idle bottom cutter, damage to the film and scrapping of wrinkles are prevented, and the yield is improved; the problem of the change cost is higher because fish tail metal roll surface causes is solved, and the piece that increases rubs is easily changed, and the cost is lower.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a perspective view of a thin film formation apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of a thin film formation apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a partial structure of a thin film formation apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial structure of a thin film formation apparatus according to an embodiment of the present invention.
Reference numerals:
a film preparation apparatus 1,
A knife roller 10, a friction increasing piece 13,
A bed knife 20, a knife groove 21, a dent-proof clearance 22,
A snap ring 30, a positioning bulge 31, a mounting bracket 40,
A driving member 50, a cutter 60, a slide rail 70 and a film 2.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A knife roller assembly for a thin film formation apparatus according to an embodiment of the first aspect of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, a knife roll assembly for a thin film formation apparatus according to an embodiment of the present invention includes: knife roll 10, friction increasing piece 13 and bed knife 20.
Specifically, the knife roll 10 is rotatable, and the knife roll 10 is adapted to be rotated by the film 2. Wherein, the knife roll 10 can be a stainless steel chrome plating roll or an alumina roll. When the knife roll 10 is an alumina roll, the material is lighter, and the driving force can be reduced. The cutter roller 10 has a plurality of driving segments and a plurality of cutting segments which are alternately arranged in the axial direction of the cutter roller 10, that is, one cutting segment is provided between two driving segments and one driving segment is provided between two cutting segments. For example, the plurality of driving segments and the plurality of cutting segments are alternately arranged in the left-right direction.
The friction increasing pieces 13 are multiple, and the friction increasing pieces 13 are respectively sleeved on the corresponding driving sections. The number of the bed knives 20 can be multiple, and the plurality of bed knives 20 are respectively sleeved on the corresponding cutting sections; the bed knife 20 can also be one, and one bed knife is sleeved on the knife roller 10. The outer peripheral surface of the friction increasing piece 13 is located outside the outer peripheral surface of the bed knife 20 in the radial direction of the knife roll 10, wherein the inner side is a direction close to the central axis of the knife roll 10, and the outer side is a direction far away from the central axis of the knife roll 10. That is, the friction increasing piece 13 is sleeved on the knife roll 10 except the bed knife 20, and a certain distance is formed between the outer circumferential surface of the friction increasing piece 13 and the outer circumferential surface of the bed knife 20 in the radial direction of the knife roll 10, so that a certain gap is formed between the film 2 and the outer circumferential surface of the bed knife 20.
According to the knife roll assembly for the film preparation device, the friction increasing piece 13 is used for wrapping the driving section of the knife roll 10, the film 2 is in direct contact with the outer surface of the friction increasing piece 13, and the friction force between the film 2 and the friction increasing piece 13 is large, so that the film 2 can be prevented from sliding, the relative displacement between the film 2 and the bed knife 20 is avoided, the scratch of the film 2 is prevented, the appearance quality and the optical performance of the film 2 can be improved, and the use requirements of users are met; in addition, in the cutting process, due to the existence of the friction increasing piece 13, a certain gap exists between the film 2 and the outer peripheral surface of the bottom cutter 20, so that the suspension cutting effect is met, the film 2 can be prevented from sinking into the cutter groove 21 of the bottom cutter 20 when passing through the idle bottom cutter 20, the damage to the film 2 and the scrapping of wrinkles are prevented, and the yield is improved; in addition, the friction increasing piece 13 is easy to replace, the problem that replacement cost is high due to the fact that the metal roller surface is scratched is solved, and cost is low.
It should be understood that the anti-dent gap 22 exists between the film 2 and the outer circumferential surface of the bed knife 20 in the radial direction of the knife roller 10, when the anti-dent gap 22 is too large, punch marks and wrinkles of the film 2 can be avoided, but incomplete cutting can be caused when the film is cut by the cutting knife 60, burrs and damages occur on the edge of the film 2, the winding quality of the film 2 is affected, and even scraps can be generated to pollute the environment; when the anti-sag gap 22 is too small, the film 2 located outside the anti-sag gap 22 may be stretched to deform in the suspended position under the action of the operating tension, affecting the apparent mass of the film 2, and the smaller the thickness of the film 2, the greater the effect.
To this end, according to some embodiments of the present invention, as shown in fig. 2, the distance between the outer circumferential surface of the friction increasing member 13 and the outer circumferential surface of the bed knife 20 in the radial direction of the knife roll 10 is 0.2mm to 0.5mm, that is, the size of the anti-dent gap 22 during cutting is 0.2mm to 0.5 mm. When producing film 2 of different thickness, need prevent that concave clearance 22's size is adjusted, like this, prevent concave clearance 22's size through control, can adapt to the production of film 2 of different thickness, can effectively cut film 2, realize that film 2 does not have and damage to and cut.
According to some embodiments of the present invention, as shown in fig. 2, the friction increasing member 13 is a cylindrical elastic member, and the inner diameter of the friction increasing member 13 in the initial state is 40% to 50% of the diameter of the driving section, wherein the initial state is a state in which the friction increasing member 13 is not stretched, and the inner diameter of the friction increasing member 13 is the inner cylinder diameter formed by the inner surface of the friction increasing member 13. Because the friction increasing piece 13 has certain elasticity, the friction increasing piece 13 can be conveniently and smoothly sleeved on the driving section, and the friction increasing piece 13 is wrapped on the driving section in a tightening state after the friction increasing piece 13 is sleeved.
It can be understood that if the elasticity of the friction increasing piece 13 is too large or the inner diameter of the friction increasing piece 13 is too large, the friction increasing piece 13 is loosened to distort the film 2, resulting in apparent deformation of the film 2, and thus cutting cannot be smoothly completed; if the elasticity of the friction increasing piece 13 is too small or the inner diameter of the friction increasing piece 13 is too small, the friction increasing piece 13 is not easily sleeved on the driving section, or the friction increasing piece 13 is wrapped on the driving section too tightly, so that the hardness of the friction increasing piece 13 is increased, the friction increasing piece 13 is easy to age and easily scratched by the thin film 2, and the service life of the friction increasing piece 13 is shortened. Like this, increase the elasticity size of piece 13, increase the internal diameter size of piece 13 that rubs through reasonable setting, can conveniently increase piece 13 that rubs and overlap smoothly on the drive section to cut more smoothly, can prolong the life who increases piece 13 simultaneously.
According to some embodiments of the present invention, as shown in fig. 2, the friction increasing member 13 is a knitted member. For example, the friction increasing member 13 is a seamless cotton tubular knitted member. In this way, the knitted piece is less costly and easier to replace.
For example, as shown in fig. 3, when cutting, the film 2 is driven by 140N-150N tension, and 80N-100N friction force is formed between the film 2 and the knitting members wrapped in the driving section, so as to drive the knife roller 10 to rotate synchronously. Thus, the film 2 can effectively drive the knife roller 10 to synchronously rotate, and relative sliding is avoided.
According to some embodiments of the present invention, as shown in fig. 2, the thickness of the friction increasing member 13 in the radial direction of the knife roll 10 is 0.4mm to 0.6 mm. Thus, after the friction increasing piece 13 is sleeved on the driving section and elastically deformed, a proper distance is ensured between the outer peripheral surface of the friction increasing piece 13 and the outer peripheral surface of the bed knife 20 in the radial direction of the knife roller 10.
Alternatively, as shown in fig. 4, during the cutting process, the wrap angle of the film 2 with the driving section in which the friction increasing member 13 is housed is α, which ranges from 50 ° to 90 °. Further, α ranges from 60 ° to 70 °. When the alpha is too large, the contact area between the film 2 and the friction increasing piece 13 is reduced, so that the friction force is reduced, and the film 2 cannot effectively drive the knife roller 10 to rotate; when the alpha is smaller, the contact area between the film 2 and the friction increasing piece 13 is larger, the friction force is larger, and the film 2 can effectively drive the knife roller 10 to rotate, so that the scratch of the film 2 caused by sliding displacement can be avoided. For example, when α is 180 °, the film 2 is parallel to the horizontal plane, i.e., the film 2 is tangent to the outer surface of the friction-increasing member 13; when α is 0 °, the contact area of the film 2 with the outer surface of the friction increasing member 13 accounts for 50% or more of the total area of the outer surface of the friction increasing member 13.
According to some embodiments of the present invention, as shown in fig. 2, the knife roll assembly for a thin film formation apparatus further includes: a snap ring 30. The clamping ring 30 is sleeved on the cutting section, and the clamping ring 30 is concentric with the knife roll 10, namely, the central axis of the clamping ring 30 is coincident with the central axis of the knife roll 10. Two end surfaces of the clamping ring 30 respectively abut against the end surface of the driving section and the end surface of the bed knife 20, that is, one end surface of the clamping ring 30 abuts against the end surface of the driving section, and the other end surface of the clamping ring 30 abuts against the end surface of the bed knife 20. For example, the left end surface of the snap ring 30 abuts against the right end surface of the driving section, and the right end surface of the snap ring 30 abuts against the left end surface of the bed knife 20 to press the bed knife 20 tightly. Thus, the structure is relatively stable.
In some embodiments of the present invention, as shown in fig. 2, an end surface of the snap ring 30 facing the bed knife 20 is provided with a positioning protrusion 31 protruding toward the bed knife 20, the end surface of the positioning protrusion 31 abuts against the end surface of the bed knife 20, and an outer circumferential surface of the positioning protrusion 31 is located inside the outer circumferential surface of the bed knife 20 in the radial direction of the knife roll 10. For example, the right end surface of the snap ring 30 is provided with a positioning protrusion 31 in a cylindrical shape protruding rightward, the outer peripheral surface of the positioning protrusion 31 is closer to the central axis of the knife roll 10 than the outer peripheral surface of the bed knife 20, and the left end surface of the bed knife 20, the right end surface of the snap ring 30 and the outer peripheral surface of the positioning protrusion 31 together define the knife groove 21 of the bed knife 20. In this way, the positioning projection 31 can be used to abut against the bed knife 20, and the knife groove 21 can be formed to be suitable for the penetration of the cutting knife 60.
In some embodiments of the present invention, as shown in fig. 2, the height of the positioning projection 31 in the axial direction of the knife roll 10 is 2mm to 4 mm. Wherein, if the width of the cutter groove 21 is too large, the film 2 is easy to shake, and the film 2 generates wrinkles; if the width of the slit 21 is too small, the cutting of the film 2 may be affected. For example, the positioning protrusion 31 protrudes rightward by a height of 2mm to 4mm, and at this time, the sipe 21 has a width of 2mm to 4mm in the left-right direction, so that it is possible to secure a proper width of the sipe 21 in the axial direction of the cutter roller 10.
In some embodiments of the present invention, as shown in fig. 2, the outer circumferential surface of the snap ring 30 is located inside the outer circumferential surface of the bed knife 20 in the radial direction of the knife roll 10, that is, the outer circumferential surface of the snap ring 30 is closer to the central axis of the knife roll 10 than the outer circumferential surface of the bed knife 20. Thus, when cutting, the film 2 is spaced from the snap ring 30 by a distance to prevent the film 2 from contacting the snap ring 30.
In some embodiments of the present invention, as shown in fig. 2, one end of the friction increasing member 13 adjacent to the snap ring 30 has an end surface, and the end surfaces of the friction increasing member 13 are respectively abutted against the end surface of the driving section and the end surface of the snap ring 30. For example, the right end of the friction increasing piece 13 has an end face, and the left end face of the snap ring 30 presses the end face of the friction increasing piece 13 against the right end face of the driving section, so that the friction increasing piece 13 is fixedly tightened on the driving section. Thus, the friction increasing piece 13 can be prevented from loosening, and the structure is more stable.
Other constructions and operations of the knife roll assembly for a thin film forming apparatus according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
As shown in fig. 1 to 4, a thin film formation apparatus 1 according to an embodiment of the second aspect of the present invention includes: a knife roll assembly, mounting bracket 40 and cutter assembly for a film making apparatus according to an embodiment of the first aspect of the invention.
Specifically, the cutter roller 10 is rotatably provided on the mounting bracket 40. The cutter assembly comprises a drive 50, which may be a motor, and a cutter 60, which cutter 60 is adapted to cut the film 2. The number of the driving members 50 may be multiple, the number of the cutting knives 60 may be multiple, the multiple cutting knives 60 are in one-to-one transmission connection with the multiple driving members 50, and the cutting knives 60 are driven by the driving members 50 to rotate. Wherein, the thickness of the cut film 2 can be 40 μm-160 μm, and further, the thickness of the cut film 2 is 60 μm-100 um. The plane of the cutter 60 is parallel to the plane of the bed knife 20, and the end face of the cutter 60 is partially attached to the end face of the bed knife 20, that is, the bed knife 20 is tangent to the cutter 60. Wherein, the bottom knife 20 and the cutter 60 are jointed without clearance, and the jointing is not required to be over-tight, thereby preventing the cutter 60 from fatigue damage and prolonging the service life of the cutter 60.
According to the film preparation device 1 provided by the embodiment of the invention, the knife roller assembly for the film preparation device is utilized, so that the relative displacement between the film 2 and the bed knife 20 is avoided, the scratch of the film 2 is prevented, the appearance quality and the optical performance of the film 2 can be improved, and the use requirements of users are met; the film 2 can be prevented from sinking into the cutter groove 21 of the bottom cutter 20 when passing through the idle bottom cutter 20, damage and wrinkle scrapping of the film 2 are prevented, and the yield is improved; the problem of the higher cost of replacement that causes because fish tail metal roll surface is solved, increase and rub piece 13 and be easily changed, the cost is lower.
According to some embodiments of the present invention, as shown in fig. 3, in a projection plane perpendicular to the central axis of the knife roll 10, the maximum overlapping width of the projection of the cutting knife 60 and the projection of the bed knife 20 in the radial direction of the knife roll 10 is 1.5mm to 2.5mm, that is, the intersecting depth of the cutting knife 60 and the bed knife 20 is controlled to be 1.5mm to 2.5 mm. Wherein, the size of the intersecting depth of the cutter 60 and the bed knife 20 is accurately adjusted, the film 2 with the thickness of 80um-100um is controlled, and the intersecting depth is controlled between 2mm-2.5 mm; the thickness of the film 2 is less than 80um, and the intersecting depth is controlled between 1mm and 2 mm. Thus, the appearance quality and optical properties of the film 2 can be further improved.
Alternatively, as shown in fig. 3, the tangent point T of the bed knife 20 to the cutter 60 is located at the center point of the portion of the film 2 wrapping the knife roll 10, that is, the tangent point T of cutting the film 2 is located at the center point of the entire length of the portion of the film 2 contacting the outer surface of the friction increasing member 13. For example, tangent point T is located directly below knife roll 10. Like this, can effectively reduce the shake of 2 operation processes of film, it is more stable to cut, avoids film 2 deckle edge burr to appear, cuts the effect best.
Alternatively, as shown in fig. 3, the drive member 50 may be operated at a linear speed 1.15 times the speed of the film 2 in a co-rotating active cutting mode, i.e., the cutter 60 is operated in the same direction as the film 2. Like this, cut more stably, further avoid film 2 deckle edge burr to appear.
Alternatively, as shown in fig. 2, the position of the cutter 60 is adjustable. For example, two slide rails 70 are respectively installed at the left end and the right end of the installation support 40, a motor is installed on each slide rail 70, the cutter 60 is installed on the motor, and the cutting position of the cutter 60 can be movably adjusted through the slide rails 70. In this way, the cutting of products of one or more specifications can be met simultaneously.
A thin film formation apparatus 1 according to some embodiments of the present invention is described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, in the present embodiment, to produce a film 2 having a thickness of 80um, the knife roll 10 has a diameter of 100mm, the length of the knife roll 10 in the left-right direction is 1m, and the bed knife 20 has a diameter of 100 mm. The diameter of the clamping ring 30 is 100mm, the thickness of the clamping ring 30 in the left-right direction is 10mm, the right end of the clamping ring 30 is provided with a cylindrical positioning bulge 31, the diameter of the positioning bulge 31 is 80mm, the height of the positioning bulge 31 in the left-right direction is 3mm, the clamping ring is used for tightly pushing the bottom knife 20, and a knife groove 21 with the width of 3mm is formed. The bed knife 20 is arranged on the knife roller 10 at intervals according to the required specification, and the knife roller 10 has no exposed metal roller surface.
Example 2
As shown in fig. 2 to 4, in the present embodiment, to produce the thin film 2 having a thickness of 80um, 8 bed knives 20 are mounted on the knife roll 10, and the knife roll 10 is an alumina roll. The friction increasing piece 13 is made of elastic cotton knitted pieces, the thickness of the friction increasing piece 13 is 0.5mm, the inner diameter of the friction increasing piece 13 before stretching is 45% of the diameter of the knife roller 10, and the friction force between the film 2 and the friction increasing piece 13 is 80N-90N. The anti-dent gap 22 between the film 2 and the bed knife 20 is 0.3mm, the tangent point is at the center point of the part of the film 2 wrapping the knife roller 10, and the wrap angle alpha is 70 degrees. The height of the positioning projection 31 in the left-right direction is 3mm, and the positioning projection 31 is concentric with the knife roller 10. The intersecting depth of the bed knife 20 and the cutting knife 60 is 2 mm.
Example 3
As shown in fig. 2 to 4, in the present embodiment, 6 bed knives 20 are installed on the knife roll 10, and the knife roll 10 is a stainless steel chrome-plated roll, in order to produce the thin film 2 having a thickness of 40 um. The friction increasing piece 13 is made of elastic cotton knitted pieces, the thickness of the friction increasing piece 13 is 0.4mm, the inner diameter of the friction increasing piece 13 before stretching is 40% of the diameter of the knife roller 10, and the friction force between the film 2 and the friction increasing piece 13 is 80N. The anti-dent gap 22 between the film 2 and the bed knife 20 is 0.2mm, the tangent point is at the center point of the part of the film 2 wrapping the knife roller 10, and the wrap angle alpha is 90 degrees. The height of the positioning projection 31 in the left-right direction is 3mm, and the positioning projection 31 is concentric with the knife roller 10. The intersecting depth of the bed knife 20 and the cutting knife 60 is 1.5 mm.
Example 4
As shown in fig. 2 to 4, in the present embodiment, to produce the thin film 2 having a thickness of 160um, 4 bed knives 20 are mounted on the knife roll 10, and the knife roll 10 is an alumina roll. The friction increasing piece 13 is made of elastic cotton knitted pieces, the thickness of the friction increasing piece 13 is 0.6mm, the inner diameter of the friction increasing piece 13 before stretching is 50% of the diameter of the knife roller 10, and the friction force between the film 2 and the friction increasing piece 13 is 100N. The anti-dent gap 22 between the film 2 and the bed knife 20 is 0.5mm, the tangent point is at the center point of the part of the film 2 wrapping the knife roller 10, and the wrap angle alpha is 90 degrees. The height of the positioning projection 31 in the left-right direction is 4mm, and the positioning projection 31 is concentric with the knife roll 10. The depth of intersection of the bed knife 20 and the cutter knife 60 is 2.5 mm.
Some embodiments of the related art are described below.
Example 1'
The knife roll is provided with 2 bed knives and is a stainless steel bed knife roll.
Example 2'
The knife roll is provided with 6 bed knives and is a rubber-coated bed knife roll.
Table 1 shows the results of comparison between the thin film 2 produced by the thin film producing apparatus 1 according to the present invention and the thin film produced in the related art, which were experimentally obtained by the inventors. The test standard used in the experiment was "cellulose Triacetate (TAC) film for polarizer" HG/T4150-2010.
The test method adopted in the experiment is as follows:
thickness according to the method specified in GB/T25276 2010 method for measuring the thickness of cellulose Triacetate (TAC) film for Liquid Crystal Displays (LCDs).
Scratching: the film surface was irradiated with light from a light source, and the presence or absence of a linear, intermittent or continuous bright line was judged by the reflected light, and the result was expressed in terms of square/square meter.
And (3) hurting: the surface of the single-layer film is irradiated by a direct light source, and the positions of the bottom cutter can be judged to have no linear, discontinuous or continuous imprints and indentations through reflected light and transmitted light, and the result is expressed by the position/the full width of the film.
Light transmittance: measuring with ultraviolet-visible spectrophotometer (wavelength range of 200nm-700nm) or similar instrument, placing 20-50 mm sample in the sample, placing in a colorimetric frame of detection channel, measuring parallel light transmittance of single sample with blank sample as air, and expressing the result in%.
TABLE 1
As shown in table 1, according to the thin film formation apparatus 1 of the embodiment of the present invention, the film 2 formed was better in appearance quality and optical properties, and higher in yield.
Other configurations and operations of the thin film formation apparatus 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. The first feature being "on," "over" and "above" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A knife roll assembly for a film making apparatus, comprising:
the cutter roller is provided with a plurality of driving sections and a plurality of cutting sections, and the driving sections and the cutting sections are alternately arranged along the axial direction of the cutter roller;
the friction increasing pieces are sleeved on the driving section;
the bottom cutters are sleeved on the cutting sections, and the outer peripheral surfaces of the friction increasing pieces are located on the outer sides of the outer peripheral surfaces of the bottom cutters in the radial direction of the cutter roller.
2. The knife roll assembly for a thin film preparation apparatus according to claim 1, wherein a distance between the outer circumferential surface of the friction increasing member and the outer circumferential surface of the bed knife in a radial direction of the knife roll is 0.2mm to 0.5 mm.
3. The knife roll assembly for a thin film preparation apparatus as claimed in claim 1, wherein the friction increasing member is a cylindrical elastic member, and an inner diameter of the friction increasing member in an initial state is 40% to 50% of a diameter of the driving section.
4. The knife roll assembly for a thin film preparation device of claim 1, wherein the friction increasing member is a knitted member.
5. The knife roll assembly for a thin film preparation apparatus as claimed in claim 1, wherein the friction increasing member has a thickness of 0.4mm to 0.6mm in a radial direction of the knife roll.
6. The knife roll assembly for a thin film preparation apparatus as claimed in any one of claims 1 to 5, further comprising:
the clamping ring is sleeved on the cutting section, two end faces of the clamping ring respectively abut against the end face of the driving section and the end face of the bed knife, and the outer peripheral face of the clamping ring is located on the inner side of the outer peripheral face of the bed knife in the radial direction of the knife roll.
7. The knife roll assembly for a thin film preparation apparatus according to claim 6, wherein an end surface of the snap ring facing the bed knife is provided with a positioning protrusion protruding toward the bed knife, the end surface of the positioning protrusion abuts against the end surface of the bed knife, and an outer circumferential surface of the positioning protrusion is located inside an outer circumferential surface of the bed knife in a radial direction of the knife roll.
8. The knife roll assembly for a thin film preparation apparatus according to claim 7, wherein the height of the positioning projection in the axial direction of the knife roll is 2mm to 4 mm.
9. The knife roll assembly for a thin film preparation device according to claim 6, wherein one end of the friction increasing member adjacent to the snap ring has an end surface, and the end surface of the friction increasing member is respectively abutted against the end surface of the driving section and the end surface of the snap ring.
10. A thin film formation apparatus, comprising:
a knife roll assembly for a thin film production apparatus according to any one of claims 1 to 9;
the knife roller is rotatably arranged on the mounting bracket;
the cutter assembly comprises a driving piece and a cutter, the cutter is in transmission connection with the driving piece so as to be driven to rotate by the driving piece, the plane where the cutter is located is parallel to the plane where the bottom cutter is located, the end face of the cutter is partially attached to the end face of the bottom cutter, in the projection plane perpendicular to the central axis of the knife roller, the projection of the cutter and the projection of the bottom cutter are in the maximum overlapping width of the radial direction of the knife roller and is 1.5mm-2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910967872.8A CN110713053B (en) | 2019-10-12 | 2019-10-12 | Knife roller assembly for film preparation device and film preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910967872.8A CN110713053B (en) | 2019-10-12 | 2019-10-12 | Knife roller assembly for film preparation device and film preparation device |
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| CN110713053A true CN110713053A (en) | 2020-01-21 |
| CN110713053B CN110713053B (en) | 2021-11-02 |
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| CN201910967872.8A Active CN110713053B (en) | 2019-10-12 | 2019-10-12 | Knife roller assembly for film preparation device and film preparation device |
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| CN (1) | CN110713053B (en) |
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| CN110713053B (en) | 2021-11-02 |
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Effective date of registration: 20220224 Address after: 223800 100 meters south of the intersection of Yongjin road and Kexing Road, development zone, Sucheng District, Suqian City, Jiangsu Province Patentee after: Photoelectric materials Co.,Ltd. Address before: 071054, 6 Kennan Avenue, Baoding, Hebei Patentee before: CHINA LUCKY Group Corp. |