Conductance Roll
The conveying roll with ventilation holes and resistance members addresses the issue of scratches by using increased air pressure to keep the sheet material separated from the roll, ensuring defect-free transport.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KABUSHIKIKAISHA MIYAKO ROLLER KOGYO
- Filing Date
- 2025-01-08
- Publication Date
- 2026-07-21
AI Technical Summary
Conventional conveying rolls cause scratches on sheet materials due to contact, particularly at the ends where stronger tension is applied, leading to product defects.
A conveying roll equipped with ventilation holes and a resistance member along its outer and/or inner circumference, which increases air discharge pressure to prevent contact between the sheet material and the roll, including both ends subjected to stronger tension.
Prevents contact between the sheet material and the roll, ensuring no scratches occur, even at ends with strong tension, by maintaining a stable air layer that keeps the sheet material aloft.
Smart Images
Figure 2026119878000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a conveying roll, and more particularly to a conveying roll (hereinafter referred to as a "conductance roll") having ventilation holes through which air passes on its peripheral surface.
Background Art
[0002] <00??009>Resin films represented by optical films and various metal foils (hereinafter collectively referred to as "sheet materials") are conveyed by conveying rolls in a manufacturing apparatus. The sheet material is conveyed while being in contact with the conveying roll, but depending on the characteristics of the sheet material such as thickness and material, scratches may occur on the surface of the sheet material due to contact with the conveying roll. [[ID=1??]]
[0003] Since scratches generated on the sheet material contribute to product defects, it is desired to manufacture a sheet material without scratches. Under such circumstances, the applicant of the present application has developed a conveying roll in which two or more small chambers (partition chambers) communicating with the ventilation holes of the roll body are provided inside the roll body, and the air supplied to the partition chambers is ejected from the ventilation holes communicating with each partition chamber (Patent Document 1).
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] According to the conveying roll of Patent Document 1, the sheet material can be conveyed without contact, and the occurrence of scratches due to contact with the conveying roll can be prevented. However, when the sheet material is floated and conveyed by air, both end sides in the width direction of the sheet material, which are subjected to stronger tension than other parts, may come into contact with the conveying roll, and there remains room for improvement in this regard.
[0006] This invention has been made in view of the above circumstances, and its objective is to provide a novel conveying roll (conductance roll) that can prevent contact of the entire sheet, including both ends in the width direction of the sheet material, which are subjected to stronger tension than other parts. [Means for solving the problem]
[0007] The conductance roll of the present invention is a conveying roll equipped with ventilation holes through which air passes, and having a resistance member provided along the outer circumference and / or inner circumference of the roll body. [Effects of the Invention]
[0008] According to the present invention, the discharge pressure (ejection pressure) of air passing through the ventilation holes is increased by the resistance member, thereby preventing contact between the entire sheet and the conductance roll, including both ends in the width direction where strong tension is applied. [Brief explanation of the drawing]
[0009] [Figure 1] (a) is a perspective view showing an example of a conductance roll, and (b) is a cross-sectional view of the conductance roll in (a). [Figure 2] A diagram illustrating the state of an air supply hose inserted into a compartment. [Figure 3] A diagram illustrating the airflow through the ventilation holes. [Figure 4] A perspective view showing an example of an end-face closure device and an air supply source. [Figure 5] (a) is a perspective view showing another example of an end-face closure device, and (b) is a cross-sectional view showing the end-face closure device of (a) attached to the openings at both ends of the roll body. [Figure 6] (a) and (b) are perspective views showing other examples of conductance rolls. [Figure 7] (a) is a perspective view showing another example of a conductance roll, and (b) is a cross-sectional view of the conductance roll in (a). [Figure 8](a) is an explanatory diagram of the air layer formed inside the large diameter section, and (b) is an explanatory diagram of the movement of the air layer formed inside the large diameter section. [Figure 9] (a) and (b) are explanatory diagrams showing the case where the inner end face of the large diameter section is tapered. [Figure 10] (a) and (b) are explanatory diagrams showing other examples of conductance rolls. [Figure 11] (a) is an explanatory diagram showing an example of a conductance roll in which a resistance member is provided along the inner circumference of the roll body, and (b) is an explanatory diagram showing an example of a conductance roll in which a resistance member is provided along both the inner and outer circumferences of the roll body. [Figure 12] (a) is an explanatory diagram showing an example where the conductance of the resistance member provided along the outer circumference of the roll body is made non-uniform, and (b) is an explanatory diagram showing an example where the conductance of the resistance member provided along the inner circumference of the roll body is made non-uniform. [Figure 13] (a) is an explanatory diagram showing an example in which two layers of resistance material are provided on the outer circumference of the roll body, and (b) is an explanatory diagram showing an example in which two layers of resistance material are provided on the inner circumference of the roll body. [Figure 14] A perspective view showing an example of a sheet material manufacturing apparatus equipped with conductance rolls. [Figure 15] A side view showing an example of a sheet material processing apparatus equipped with conductance rolls. [Modes for carrying out the invention]
[0010] (Embodiment of conductance roll) An example of an embodiment of the conductance roll 10 of the present invention will be described with reference to the drawings. The conductance roll 10 of the present invention is used in a non-rotating state and can be mounted and used in various devices that require the transport of sheet material X, including the sheet material manufacturing device 30 and sheet material processing device 40 described later.
[0011] As an example, the conductance roll 10 shown in Figures 1(a) and 1(b) comprises a hollow roll body 11 and partition walls 13 that divide the inside of the roll body 11 into multiple compartments 12.
[0012] The roll body 11 of this embodiment is cylindrical with an opening 11a provided at one end in the longitudinal direction. The roll body 11 is provided with a plurality of ventilation holes 14 through which air inside the roll body 11 passes to the outside of the roll body 11. The roll body 11 may be other than cylindrical, such as a square tube shape. Also, the roll body 11 may have openings 11a at both ends in the longitudinal direction.
[0013] For the roll body 11, for example, a metal roll, a stainless steel roll, a carbon steel roll, a plated roll, a resin roll, a sprayed roll, an aluminum alloy roll, a sintered carbon roll, a sintered metal roll, etc. can be used. Also, a structure combining the above materials can be adopted.
[0014] In the case of a metal roll, a stainless steel roll, a carbon steel roll, a plated roll, a resin roll, or a sprayed roll, it is necessary to form the ventilation holes 14. However, when using sintered carbon or sintered metal alone for the roll body 11, due to the characteristics of the material, a roll with fine holes through which air passes is formed, so there is no need to separately form holes, and the fine holes formed in the roll can be used as the ventilation holes 14.
[0015] As the metal roll, SS400 etc. can be used, as the stainless steel roll, SUS304, SUS440C etc. can be used, as the carbon steel roll, STKM13A, S25C etc. can be used, and as the plated roll, HCr plated roll, Ni plated roll etc. can be used.
[0016] Also, as the resin roll, MC nylon, PEEK etc. can be used, and as the sprayed roll, WC sprayed roll etc. can be used. In addition, those formed with amorphous films such as DLC films and SiOx typified by SiO2, SiC, etc. can also be used. These films may be formed on a coating such as HCr plating.
[0017] The ventilation holes 14 are provided around the entire circumference of the roll body 11, and each ventilation hole 14 communicates with one of the compartments 12 inside the roll body 11. The ventilation holes 14 can be perpendicular to the longitudinal and circumferential directions of the roll, or they can be angled. In some cases, a combination of perpendicular and angled holes can be used. The shape of the ventilation holes 14 can be straight or tapered.
[0018] Furthermore, the diameter of the ventilation holes 14 can be uniform or non-uniform. If non-uniform, the diameter of the ventilation holes 14 at both ends can be made larger or smaller than the diameter of the ventilation holes 14 in the center of the roll body. There are no particular restrictions on the diameter of the ventilation holes 14, but it is preferable that it be in the range of 1 μm to 3 mm.
[0019] The air supplied to the compartments 12 is ejected from the ventilation holes 14 that communicate with each compartment 12. The ventilation holes 14 can be arranged at equal or uneven intervals. The inner diameter of the ventilation holes 14 can also be uniform or uneven.
[0020] In this embodiment, three partition walls 13 are provided inside the roll body 11. Each partition wall 13 is a thin sheet material of approximately the same length as the roll body 11, and the three partition walls 13 are spaced at 120° intervals. The number of partition walls 13 can be more or less than three.
[0021] There are no particular restrictions on the installation angle of the partition walls 13, and they can be set appropriately depending on the number of partition walls to be installed. Each partition wall 13 does not necessarily have to be installed at an equal angle; for example, when partitioning with three partition walls 13, the three partition walls 13 can be installed at uneven angles such as 30°, 60°, and 270°.
[0022] When the partition walls 13 are installed at equal or approximately equal angles, the volume of each compartment 12 will be equal or approximately equal; however, when they are installed at any other angle, the volume of each compartment 12 will be uneven.
[0023] In this embodiment, the roll body 11 and the partition wall 13 are integrally formed by aluminum extrusion molding. The roll body 11 and the partition wall 13 can also be made as separate parts, with the partition wall 13 being inserted into the roll body 11 later.
[0024] The roll body 11 and partition wall 13 can be made of materials such as non-ferrous metals (e.g., stainless steel or aluminum), resin, rubber, or fiber-reinforced plastics (e.g., FRP composite with carbon fiber or glass fiber). The roll body 11 and partition wall 13 can also be made of a composite of these materials.
[0025] As shown in Figures 1(a)(b) to 4, the conductance roll 10 of this embodiment is provided with a resistance member 18 along the outer circumference of the roll body 11 that increases the conductance (resistance) of the air passing through the ventilation holes 14. The resistance member 18 is a member that plays a role in increasing the resistance of the air and in diffusing the air throughout the roll body 11.
[0026] In this embodiment, a nonwoven fabric is used as the resistive member 18. When a nonwoven fabric is used as the resistive member 18, the nonwoven fabric can be wrapped around once or multiple times. In addition to a nonwoven fabric, the resistive member 18 can be a member with fine pores, such as a filter (made of cloth or fibers, etc.), a perforated film, a perforated foil, a perforated plate, a porous sheet (for example, a sintered sheet having a sintered structure), or a porous material. One or more of these can be provided as the resistive member 18. The resistive member 18 can be provided in all or part of the area where the ventilation holes 14 of the roll body 11 are provided.
[0027] To prevent contamination from the material, the surface or surface layer of the resistive member 18 can be coated with an amorphous thin film such as DLC, SiOx, SiC, or SiN, or with an aluminum-based metal thin film. Here, "surface" refers to the outer surface of the resistive member 18, and "surface layer" refers to the surface of the resistive member 18 and the region including the injected portion if injected inward from the surface.
[0028] To prevent the resistance member 18 from inadvertently falling off the roll body 11, a fixing device 19 is provided on the outer circumference of the resistance member 18 to hold it in place. In addition to holding the resistance member 18 in place, the fixing device 19 also plays a role in maintaining the state in which the resistance member 18 is uniformly wound around the entire roll body 11. In this embodiment, a cylindrical piece of perforated metal is used as the fixing device 19.
[0029] The fastener 19 can be made of perforated material such as punched metal or metal mesh. Using a perforated material has the advantage that not only does the air that has passed through the resistance member 18 pass through, but the air that has passed through the ventilation holes 14 pushes the resistance member 18 out of the holes in the fastener 19, so that even when the sheet material does not float sufficiently, the sheet material does not come into contact with the fastener 19.
[0030] There are no restrictions on the material of the fastener 19, but it is preferable to use one with excellent corrosion resistance, such as SUS304. In addition, the fastener 19 can be a cylindrical mesh material that covers the outer circumference of the resistance member 18, a band that holds down a part of the outer circumference of the resistance member 18, a metal wire such as SUS, or a resin wire such as fishing line.
[0031] As shown in Figure 4, an end-face seal (lid) 15 is provided along the longitudinal direction of the roll body 11 to close the opening 11a at one end of the roll body 11 in the longitudinal direction. The end-face seal 15 is a lid of a size and shape that can close the end face of the roll body 11, and is detachably attached to the end face of the roll body 11. The shape of the end-face seal 15 can be determined to match the shape of the end face of the roll body 11, and there are no restrictions on its size, shape, or structure as long as it can prevent air from leaking out.
[0032] The end face closure device 15 can also be equipped with a support shaft (core member) 17 that protrudes outward, as shown in Figure 5(a). If openings 11a are provided at both ends of the roll body 11, the end face closure devices 15 with support shafts 17 can be provided at both ends of the roll body 11 in the longitudinal direction, as shown in Figure 5(b).
[0033] The end face closure device 15 is provided with an air inlet 15a for introducing air supplied from the air supply source 20 into the compartment 12. In this embodiment, the air inlet 15a is provided at a position corresponding to each compartment 12.
[0034] Air is introduced into the compartment 12 to which the air supply hose 21 is connected by connecting the air supply hose 21 of the air supply source 20 to one or more arbitrary air inlets 15a. Air inlets 15a that do not supply air can be closed with inlet covers 15b. The end face closure device 15 can also be integrated with the roll body 11.
[0035] Furthermore, if openings 11a are provided at both ends of the roll body 11, a cover without an air inlet 15a can be provided at one opening 11a, and an end-face closure device 15 equipped with an air inlet 15a can be provided at the other opening 11a. In some cases, an end-face closure device 15 equipped with air inlets 15a at both ends can be provided, and the unused air inlets 15a can be covered with an inlet cover 15b.
[0036] The conductance roll 10 described so far is just one example, and the configuration of the conductance roll 10 of this application is not limited to the configuration of this embodiment. The conductance roll 10 of this application includes, for example, the following various modifications.
[0037] -Experimental Variation 1- In the above embodiment of the conductance roll 10, one example is that the inside of the roll body 11 is divided into two or more compartments 12, but the inside does not necessarily have to be divided into compartments 12.
[0038] -Variation 2- In the above embodiment of the conductance roll 10, one example is shown where a resistance member 18 is provided on the outer circumference of the roll body 11. However, as shown in Figure 6(a), the roll body 11 does not necessarily have to be provided. For example, if the resistance member 18 can maintain a certain strength due to its structure, material, etc., the roll body 11 can be omitted and the resistance member 18 can be used in place of the roll body 11.
[0039] -Variation 3- In the conductance tube 10 of the above embodiment, a case in which a cylindrical perforated metal is used as the fastener 19 is given as an example, but a belt-shaped fastener 19 as shown in Figure 6(b) can also be used. The belt-shaped fastener 19 may be perforated or not. The number of belt-shaped fasteners 19 can be one or any number of two or more depending on the length of the roll body 11.
[0040] -Variation 4- In the above embodiment of the conductance roll 10, the case in which the roll body 11 is cylindrical without steps is given as an example, but as shown in Figures 7(a) and 7(b), the roll body 11 can also be provided with a large-diameter section 11e that is higher than the other parts of the roll body 11. Conversely, the roll body 11 can also be provided with a small-diameter section (not shown) that is lower than the other parts of the roll body 11.
[0041] The large-diameter sections 11e can be provided, for example, near both ends in the longitudinal direction of the roll body 11. In this case, ventilation holes 14 can be provided in the area excluding the large-diameter sections 11e (the area inside the large-diameter sections 11e), allowing air to be ejected from there. In this case, the resistance member 18 only needs to be provided in the area excluding the large-diameter sections 11e (the area where the ventilation holes 14 are provided). Note that ventilation holes 14 may or may not be provided in the large-diameter sections 11e and the small-diameter sections.
[0042] When large-diameter sections 11e are provided near both ends in the longitudinal direction of the roll body 11, as shown in Figures 8(a) and 8(b), an air layer Y is formed in the space enclosed by the sheet material X and the inner end faces of both large-diameter sections 11e, where air ejected from the ventilation holes 14 accumulates. This air layer Y ensures a distance between the outer circumference of the roll body 11 and the sheet material X. This prevents the ends of the sheet material X in the width direction, which are subjected to strong tension, from coming into contact with the outer circumference of the roll body 11.
[0043] Even without such a large-diameter portion 11e, the air layer Y formed outside the resistance member 18 and the fixing device 19 can ensure a distance between the outer circumference of the roll body 11 and the sheet material X, preventing contact between the sheet material X at both ends in the width direction where strong tension is applied. However, when the large-diameter portion 11e is provided, as shown in Figure 8(b), the large-diameter portion 11e prevents air from flowing through the air layer Y, making the air layer Y more stable and making it easier to obtain the above-mentioned effects.
[0044] Furthermore, the inner surface of the large-diameter portion 11e is tapered as shown in Figures 9(a) and 9(b), making it easier for the sheet material X to ride up onto the upper side of the large-diameter portion 11e when it moves laterally. This prevents wrinkles from forming due to the sheet material X getting caught on the large-diameter portion 11e when it moves laterally.
[0045] The height of the large-diameter portion 11e can be set to be greater than the sum of the thicknesses of the resistive member 18 and the fixing device 19, as shown in Figure 9(a), or to be approximately the same as the sum of the thicknesses of the resistive member 18 and the fixing device 19, as shown in Figure 9(b). The height of the large-diameter portion 11e can also be set to be less than the sum of the thicknesses of the resistive member 18 and the fixing device 19.
[0046] -Variation 5- In the above embodiment, the case in which the outer circumference of the roll body 11 is a smooth surface without irregularities is given as an example. However, as shown in Figure 10(a), the outer circumference of the roll body 11 can also be provided with a textured surface 11d having recesses 11b and protrusions 11c, and a resistance member 18 and a fixing device 19 can be provided on its outer circumference. The textured surface 11d can be formed, for example, by blasting (for example, sandblasting) the outer circumference of the roll body 11.
[0047] There are no particular restrictions on the roughness or shape of the textured surface 11d, but an example of roughness when processed by blasting is Rq: approximately 0.5 to 4.0 μm. However, this value is just an example, and values outside this range are also acceptable.
[0048] Furthermore, if dents and irregularities are formed by blasting, abnormal protrusions on the surface may cause problems during transport. Therefore, it is desirable that the protrusions 11c have a uniform height and are free of abnormal protrusions. While there are no restrictions on the shape of the protrusions 11c, it is desirable that the area around the dents and irregularities be free of burrs and have a rounded shape.
[0049] -Variation 6- In the above embodiment, one example is shown where a partition wall 13 is provided along the longitudinal direction of the roll body 11. However, as shown in Figure 10(b), multiple partition walls 13 can be provided in directions that intersect the longitudinal direction of the roll body 11 (orthogonal in the illustrated example). In this case, multiple compartments 12 are formed inside the roll body 11, partitioned along the longitudinal direction.
[0050] Each compartment 12 can be individually fitted with an air supply hose 21 from the air supply source 20, allowing air to be introduced into each compartment 12. In this way, the amount of air supplied to each compartment 12 can be varied, for example, by increasing the amount of air supplied to the compartments 12 on both outer sides in the longitudinal direction of the roll body 11.
[0051] -Variation 7- In the above embodiment, one example is that the resistance member 18 is provided only on the outer circumference of the roll body 11, but the resistance member 18 can also be provided on the inner circumference of the roll body 11. In this case, as shown in Figure 11(a), the resistance member 18 can be provided only on the inner circumference of the roll body 11, or as shown in Figure 11(b), it can be provided on both the inner and outer circumferences of the roll body 11.
[0052] When resistance members 18 are provided on both the inner and outer circumferences of the roll body 11, they can be made of materials with the same conductance, or one can be made of materials with a higher conductance and the other of a lower conductance.
[0053] When providing resistors with different conductances, the resistor 18c with lower conductance (see Figures 13(a) and 13(b)) can be placed on the inner circumference side, and the resistor 18d with higher conductance (see Figures 13(a) and 13(b)) can be placed on the outer circumference side. Conversely, the resistor 18d with higher conductance can be placed on the inner circumference side, and the resistor 18c with lower conductance can be placed on the outer circumference side.
[0054] When provided on both sides, the ventilation hole 14 can be sandwiched between the resistance member 18 provided on the inner circumference and the resistance member 18 provided on the outer circumference (covering the portion where the ventilation hole 14 is provided). Furthermore, the resistance member 18 provided on the inner circumference and the resistance member 18 provided on the outer circumference can be provided in the same position or in a offset position.
[0055] The resistance member 18 can be provided on the inner and outer circumference of a portion of the roll body 11, or on the inner and outer circumference of the entire roll body 11 (the entire area where the ventilation holes 14 are provided). In the former case, the resistance member 18 can be provided along either the inner or outer circumference of the other portion. When the resistance member 18 is provided along the inner circumference of the roll body 11, the resistance member 18 can be held in place by a fixing device 19 as needed.
[0056] -Variation 8- Although not specifically mentioned in the above embodiment, the conductance of the resistive member 18 can be made different (non-uniform) depending on where it is installed. In other words, the resistive member 18 can include a portion having a first conductance and a portion having a second conductance different from the first conductance.
[0057] For example, as shown in Figure 12(a), when the resistance members 18 are provided along the outer circumference of the roll body 11, the conductance of the resistance members 18 provided at both ends in the longitudinal direction of the roll body 11 (referred to as "end-side resistance members 18a" for convenience) can be made smaller than the conductance of the resistance member 18 provided near the center (referred to as "center-side resistance member 18b" for convenience).
[0058] This makes it possible to increase the amount of air discharged (discharge pressure) at both ends in the longitudinal direction of the roll body 11 where the end-side resistance member 18a is provided, compared to the area near the center where the central-side resistance member 18b is provided. The same applies when the resistance member 18 is provided along the inner circumference of the roll body 11, as shown in Figure 12(b).
[0059] -Variation 9- Although not specifically mentioned in the above embodiment, the resistance member 18 can also be provided in two or more layers (two or more pieces) along the outer and / or inner circumference of the roll body 11. Specifically, two pieces can be provided along the outer circumference of the roll body 11 as shown in Figure 13(a), or two pieces can be provided along the inner circumference of the roll body 11 as shown in Figure 13(b). Two or more resistance members 18 can also be provided on both the outer and inner circumferences of the roll body 11.
[0060] When two resistive members 18 are stacked on top of each other, the two overlapping resistive members 18 can have the same conductance, or one can have a higher conductance and the other can have a lower conductance.
[0061] In this case, for example, the resistance member 18c with lower conductance can be placed on the roll body 11 side (inside), and the resistance member 18d with higher conductance can be placed on the outside. Conversely, the resistance member 18d with higher conductance can be placed on the inside, and the resistance member 18c with lower conductance can be placed on the outside.
[0062] Even when the resistive member 18 is provided in two or more layers (two or more pieces) on both the outer and inner circumference of the roll body 11, it is also possible to stack two (multiple) layers of the resistive member 18 shown in the modified example 8, specifically, a resistive member 18 that includes a portion having a first conductance and a portion having a second conductance different from the first conductance.
[0063] It should be noted that the modifications described herein are merely examples, and the conductance roll 10 of this application is not limited to the configurations of the embodiments or modifications described above. For example, when a textured portion 11d is provided on the outer circumference of the roll body 11, or when a partition wall 13 is provided in a direction that intersects the longitudinal direction of the roll body 11, it is also possible to go beyond the scope of the embodiments and modifications described in this application and rearrange the configuration, such as by providing a large-diameter portion 11e or a small-diameter portion on the roll body 11, as in other embodiments.
[0064] (Embodiment of a sheet material manufacturing apparatus) Next, an example of an embodiment of the sheet material manufacturing apparatus 30 of the present application will be described with reference to the drawings. The sheet material manufacturing apparatus 30 of the present application is an apparatus for manufacturing sheet materials X such as resin films and metal foils. Here, we will consider the case where the sheet material manufacturing apparatus 30 is an apparatus for manufacturing functional films as an example.
[0065] In Figure 14, 31 is an extruder, 32 is a T-die, 33 is a cooling roll, 34 is a casting roll, 35 is a conveying roll, and 36 is a winding roll. In this sheet material manufacturing apparatus 30, the supplied resin pellets are heated and melted in the extruder 31 and supplied to the T-die 32, where they are formed into a sheet and discharged. The thickness of the film can be adjusted to the desired thickness by adjusting the discharge amount of molten resin, the take-up speed, and the opening of the lip (not shown) of the T-die 32.
[0066] The film discharged from the T-die 32 is cooled and solidified by the cooling roll 33, then its temperature is controlled by the casting roll 34, and it is stretched in the longitudinal and transverse directions while being conveyed forward by the conveying roll 35 and wound onto the winding roll 36. In this embodiment, the conductance roll 10 shown in Figures 1(a) and 1(b) is used as the conveying roll 35.
[0067] The configuration shown in this embodiment is an example, and the sheet material manufacturing apparatus 30 of this application is not limited to the configuration of this embodiment. The sheet material manufacturing apparatus 30 of this application can be modified, replaced, or omitted in any way that does not change its essence.
[0068] (Embodiment of a sheet material processing apparatus) Next, an example of an embodiment of the sheet material processing apparatus 40 of the present application will be described with reference to the drawings. The sheet material processing apparatus 40 of the present application is an apparatus for processing sheet materials X such as resin films and metal foils. Processing here includes, for example, cutting a part of the sheet material X or applying a coating liquid such as a functional material to both sides or one side of the sheet material X.
[0069] As an example, the sheet material processing apparatus 40 shown in Figure 15 is a coating apparatus that applies a functional material to a sheet material X. In Figure 15, 41 is a feed roll, 42 is a winding roll, 43 is a conveying roll, 44 is an impression roll, 45 is a container for the coating liquid, 46 is a gravure roll, 47 is a touch roll, 48 is a blade, and 49 is a drying oven.
[0070] In this embodiment, the conductance roll 10 shown in Figures 1(a) and 1(b) is used as the conveying roll 43. Specifically, the conductance roll 10 shown in Figures 1(a) and 1(b) is used as the conveying roll 43 positioned between the feed roll 41 and the gravure roll 46, and as the conveying roll 43 positioned between the gravure roll 46 and the winding roll 42.
[0071] In this embodiment, the sheet material processing apparatus 40 is given as an example when it is a coating apparatus. However, the sheet material processing apparatus 40 of this application includes various apparatuses that process the sheet material X while it is being transported, such as a cutting apparatus that cuts the sheet material X in the flow direction (MD direction) or width direction (TD direction) while it is being transported, a laminating apparatus that adheres another sheet material X to the sheet material X being transported and then winds it up, and a slitting apparatus that winds up the sheet material X while cutting it to a desired width.
[0072] Various devices that process sheet material X while transporting it, such as the cutting device, laminating device, and slitting device, are provided with transport rolls for transporting the sheet material X, and the conductance roll of the present invention can be used as such transport rolls. The sheet material processing device 40 of this application also includes devices that can perform multiple processing operations, such as coating, laminating, and slitting, in a single unit.
[0073] The configuration of this embodiment is an example, and the sheet material processing apparatus 40 of this application is not limited to the configuration of the embodiment described above. The sheet material processing apparatus 40 of this application can be modified as appropriate, such as by adding, replacing, or omitting components, to the extent that the intended purpose can be achieved.
[0074] The embodiments disclosed herein are illustrative and not intended to restrict the technical scope of the present invention. The technical scope of the present invention is defined by the claims. The technical scope of the present invention also includes equivalents to the claims. [Industrial applicability]
[0075] The conductance roll 10 of this application can be used as a transport roll mounted in various devices, and is particularly suitable for use as a transport roll in a sheet material manufacturing device 30 or a sheet material processing device 40 that manufactures sheet materials X such as optical films and various metal foils. [Explanation of Symbols]
[0076] 10 Conductance Rolls 11 Roll body 11a opening 11b recess 11c protrusion 11d Pear-textured area 11e Large diameter section 12 compartments 13 Bulkhead 14 Ventilation holes 15 End face obturator (lid material) 15a Air Inlet 15b Inlet lid 17. Support shaft (core member) 18 Resistive member 18a End-side resistance member 18b Central side resistance member 18c Resistor with lower conductance 18d Resistor with higher conductance 19 Fixtures 20 Air supply source 21 Air supply hose 30 Sheet material manufacturing equipment 31 Extruder 32 T-die 33 Cooling Roll 34 Casting Roll 35 Conveyor Rolls 36 reel rolls 40 Sheet material processing equipment 41 Feed Roll 42 Reel roll 43 Conveyor Rolls 44 Impression Cylinder Roll 45 Container for coating liquid 46 Gravure Roll 47 Touch Roll 48 blades 49 Drying oven X Sheet Material Y Air layer
Claims
1. In a conveying roll equipped with ventilation holes through which air passes, A resistance member is provided along the outer circumference and / or inner circumference of the roll body. A conductance roll characterized by the following features.
2. In the conductance roll according to claim 1, The resistive member is provided with one or more of the following: nonwoven fabric, filter, perforated film, perforated foil, perforated plate, porous sheet, and porous material. A conductance roll characterized by the following features.
3. In the conductance roll according to claim 1, The resistive member comprises a portion having a first conductance and a portion having a second conductance different from the first conductance. A conductance roll characterized by the following features.
4. In the conductance roll according to claim 1, Resistance members are provided in two or more layers on the outer and / or inner circumference of the roll body, A conductance roll characterized by the following features.
5. In the conductance roll according to claim 4, The conductances of two or more resistive elements are different. A conductance roll characterized by the following features.
6. In the conductance roll according to claim 1, A thin film is provided on the surface or surface layer of the resistive member. A conductance roll characterized by the following features.
7. In the conductance roll according to claim 1, The thin film provided on the surface or surface layer of the resistive member is an amorphous thin film or a metallic thin film. A conductance roll characterized by the following features.
8. In the conductance roll according to claim 7, The amorphous thin film is made of DLC, SiOx, SiC, or SiN. A conductance roll characterized by the following features.
9. In the conductance roll according to claim 7, The metal thin film is an aluminum-based thin film. A conductance roll characterized by the following features.
10. In the conductance roll according to claim 1, The resistive member is fixed with a fastener. A conductance roll characterized by the following features.
11. In the conductance roll according to claim 1, The inside of the roll body is divided into two or more compartments by partition walls. A conductance roll characterized by the following features.
12. In the conductance roll according to claim 1, The roll body has either a large-diameter section that is higher than the rest of the roll body or a small-diameter section that is lower than the rest of the roll body at both ends in the longitudinal direction. A conductance roll characterized by the following features.