Variable suction type take-up roller

Abstract

To provide a variable suction type take-up roller capable of adjusting a suction range according to a circumferential range with which a strip-shaped body contacts for each feed roller.SOLUTION: In order to solve the problem, there is provided a variable suction type take-up roller including: a rotating cylinder with a plurality of vacuum suction through holes provided around an entire circumference of a central region; a cylindrical shaft with a suction through hole, which is coaxial with the rotating cylinder and inside the rotating cylinder; and a plate-like fixed partition plate and a variable partition plate that divide a space between an inner peripheral surface of the rotating cylinder and an outer peripheral surface of the cylindrical shaft into a space having the suction through holes and a space not having the suction through holes.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a variable suction type take-up roller that can take up a thin strip having a sticky substance applied on one side from the upstream side by contacting only one side and can change the direction. [Background technology]

[0002] Patent Document 1 discloses a feed roller including a cylindrical member having a plurality of holes penetrating from the outer peripheral surface to the inner peripheral surface, a covering member having a large friction coefficient and good conductivity that covers the outer peripheral surface of the cylindrical member other than the holes, a support member that rotatably supports the cylindrical member on the inner peripheral surface side of the cylindrical member, a transmission member for transmitting a rotational driving force to the cylindrical member on the outer peripheral surface side of the cylindrical member, a tubular axial tube member that supports the support member on a rotating shaft and extends to the outside of a side end of the cylindrical member, ventilation openings provided in a part of the axial tube member on the inner peripheral surface side of the cylindrical member, a shielding member provided at the side end of the cylindrical member to prevent gas from entering or exiting, and a partition member that divides the inner peripheral surface side of the cylindrical member into a first space having the ventilation openings and a second space having no ventilation openings. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-113403 Summary of the Invention [Problem to be solved by the invention]

[0004] In the invention described in Patent Document 1, a feed roller to which a partition member is fixed to regulate the space that can be sucked in advance in the circumferential direction of the feed roller is attached to, for example, a paper feeder that feeds a web. The invention in Patent Document 1 has one feed roller that is sucked by vacuum, but in a device that must install multiple feed rollers that are sucked by vacuum, the circumferential range in which the web contacts each feed roller may differ, and the positional relationship between the feed rollers may differ between the drawing and the actual paper feeder. In this case, a feed roller with a fixed mounting angle of the partition member has a problem that the web cannot be sucked because the vacuum device sucks in outside air from the holes in the cylindrical member that are not in contact with the web. In addition, in order to improve this, there is a problem that a feed roller with a re-angled partition member must be re-manufactured and reinstalled.

[0005] The present invention was devised in consideration of these problems, and its objective is to provide a variable suction take-up roller in which the mounting angle of the partition plate can be adjusted to match the circumferential range with which the strip contacts each feed roller, so that suction from the vacuum device at the equipment manufacturing site can be achieved only through the vacuum suction through hole with which the strip contacts. [Means for solving the problem]

[0006] The variable suction pull roller according to claim 1 comprises a rotating cylinder having a plurality of vacuum suction through holes formed around at least the entire circumference of a central region in the longitudinal direction, a side wall having shaft holes at both ends, and connected to a rotation drive means to rotate; a cylindrical shaft body having a suction through hole formed in the longitudinal center portion, coaxial with the rotating cylinder and penetrating the shaft hole inside the rotating cylinder, an opening on one end side communicating with a pipeline of a vacuum device and a sealing lid attached to an opening on the other end side; and a plate-shaped fixed partition plate and a variable partition plate that divide a space between an inner peripheral surface of the rotating cylinder, an outer peripheral surface of the cylindrical shaft body, and the side walls at both ends into a space on a side having the suction through holes and a space on a side not having the suction through holes, and the fixed partition plate is a size sufficient to divide the space and is fixed to the outer peripheral surface of the other end side of the cylindrical shaft, the variable partition plate is a size sufficient to divide the space and is fixed to the outer peripheral surface of a pipe member which is inserted in a radial gap at one end side between the cylindrical shaft and the fixed partition plate and which can be freely rotated relative to the cylindrical shaft, a handle is attached to one end side of the pipe member for varying the circumferential angle of the variable partition plate, the other end side of the cylindrical shaft is provided with a switching means which can switch the cylindrical shaft between a rotatable state and a fixed state relative to the other end side support member, and the one end side of the pipe member is provided with a switching means which can switch the pipe member between a rotatable state and a fixed state relative to the one end side support member.

[0007] The variable suction type take-up roller described in claim 2 is characterized in that, in the first embodiment, a sealing member is provided on the side wall of the rotating cylinder to prevent air from flowing through the shaft hole provided on the side wall. Effect of the Invention

[0008] The variable suction type take-up roller described in claim 1 has the effect of bringing only one side (back side) of a thin strip, the opposite side of which is coated with a sticky substance only on one side (front side), into contact with the surface of a rotating cylinder, adsorbing the back side of the strip to the surface of the rotating cylinder by suction from a vacuum suction through hole connected to a vacuum device, and allowing the rotating cylinder to rotate while maintaining the adsorption state, thereby enabling the strip to be taken up from the upstream side.This has the effect of allowing a strip that cannot be sandwiched on both sides by two opposing feed rollers to be adsorbed and fed on only one side.

[0009] Furthermore, by providing a fixed partition plate and a variable partition plate that allow only the vacuum suction through holes that are in contact with the back side of the strip, out of the multiple vacuum suction through holes provided around the entire circumference of the rotating cylinder, the fixed partition plate and the variable partition plate can be easily adjusted to correspond to each range so that even if the circumferential range of contact between the strip and the rotating cylinder is different, suction can only be achieved through the vacuum suction through holes that are in contact with the back side of the strip, and outside air cannot be sucked in through the vacuum suction through holes that are not in contact with the back side of the strip.

[0010] The variable suction type take-up roller according to claim 2 has an effect of preventing air from being sucked in through gaps in bearings, etc., that is, from other than the through holes for vacuum suction of the rotating cylinder. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is an explanatory diagram of a vertical cross section of the variable suction pull roller of the present invention. [Diagram 2] 2A and 2B are explanatory views showing the mounting relationship between the fixed partition plate and the variable partition plate in FIG. 1, where FIG. 2A is an explanatory view of the AA cross section, and FIG. 2B is an explanatory view of the BB cross section. [Diagram 3] 2 is an explanatory diagram of the structure of a portion C on one end side of the cylindrical shaft body in FIG. 1. [Figure 4] 2 is an explanatory diagram of the structure of part D which is the other end side of the cylindrical shaft body in FIG. 1. [Diagram 5] FIG. 2 is an explanatory diagram of a rotating cylindrical body, where (a) is a longitudinal cross-sectional explanatory diagram, and (b) is a schematic explanatory diagram as seen from the front. [Figure 6] These are explanatory diagrams of the fixed partition plate, where (a) is a schematic explanatory diagram when viewed in a plane, in which the fixed partition plate is positioned approximately perpendicular to the suction through hole, and (b) is a schematic explanatory diagram of the FF cross section when the fixed partition plate is positioned immediately adjacent to the suction through hole. [Figure 7] 7(a) is an explanatory diagram of the variable partition plate when viewed from the front, and FIG. 7(b) is a view taken along arrow K in FIG. 7(a), showing an overview of the variable partition plate when viewed from the right side, and FIG. [Figure 8] FIG. 2 is an explanatory diagram of an example of a system using multiple variable suction pull rollers of the present invention. [Figure 9] FIG. 9 is an enlarged explanatory view of a portion E in FIG. 8. [Figure 10] FIG. 13 is an explanatory diagram of an example in which the feed direction is changed by approximately 60 degrees. [Figure 11] FIG. 13 is an explanatory diagram of an example in which the feed direction is changed by approximately 180 degrees. [Figure 12] FIG. 13 is an explanatory diagram of a comparative example in which the angle of the partition plate cannot be adjusted. [Figure 13] FIG. 13 is an explanatory diagram of the mounted state of the fixed partition plate, showing the mounted state in a position where the fixed partition plate is erected directly upward. [Figure 14] FIG. 13 is an explanatory diagram of the mounted state of the variable partition plate, in which the variable partition plate is installed in an upright position directly upward. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The variable suction type take-up roller 1 of the present invention is a rotating roller that takes up from the upstream side a thin strip 60 having a sticky substance applied on one side. The strip 60 may be, for example, a strip of carbon paper or sticky tape.

[0013] As shown in Figs. 1, 2, 5 and 6, the variable suction pull roller 1 of the present invention comprises a rotating cylinder 2 which is connected to a rotation drive means 50 and rotates, the rotating cylinder 2 having a plurality of vacuum suction through holes 10 at least around the entire circumference of the central region in the longitudinal direction and a side wall 8 having shaft holes 12 at both ends, a cylindrical shaft 3 which is coaxial with the rotating cylinder 2 and has a suction through hole 11 at the central portion in the longitudinal direction penetrating the shaft hole 12 inside the rotating cylinder 2, an opening of one end side M communicates with a pipeline 80 of a vacuum device, and a sealing lid 23 is attached to an opening of the other end side N, and a plate-shaped fixed partition plate 4 and a variable partition plate 5 which divide the space between the inner peripheral surface of the rotating cylinder 2, the outer peripheral surface of the cylindrical shaft 3 and the side walls 8 at both ends into a space 30 on the side having the suction through holes 11 and a space 31 on the side not having the suction through holes 11, and the fixed partition plate As shown in Figure 13, variable partition plate 5 has a size sufficient to separate spaces 30, 31 and is fixed to the outer peripheral surface of the other end side N of the cylindrical shaft body 3. As shown in Figure 14, variable partition plate 5 has a size sufficient to separate spaces 30, 31 and is fixed to the outer peripheral surface of a pipe member 6 which is inserted in a radial gap G of one end side M between the cylindrical shaft body 3 and the fixed partition plate 4 and which can rotate freely with respect to the cylindrical shaft body 3. A handle 7 for changing the angle of the variable partition plate 5 in the circumferential direction is attached to one end side of the pipe member 6. A switching means 24 is provided on the other end side N of the cylindrical shaft body 3, which can switch the cylindrical shaft body 3 between a rotatable state and a fixed state with respect to the other end side support member 22. A switching means 19 is provided on the one end side M of the pipe member 6, which can switch the pipe member 6 between a rotatable state and a fixed state with respect to the one end side support member 21.

[0014] As shown in FIGS. 1, 3 and 4, a sealing member 16 is provided on the side wall 8 of the rotating cylinder 2 to prevent air from flowing through the shaft hole 12 provided in the side wall 8.

[0015] First, the rotating cylinder 2 will be described. As shown in Figures 5(a) and (b), the rotating cylinder 2 has a plurality of vacuum suction through holes 10 provided around at least the entire circumference of the central region of the cylinder 2a in the longitudinal direction, a side wall 8 having shaft holes 12 at both ends, and is connected to a rotation drive means 50 and rotates when driven by the rotation drive means 50. The rotating cylinder 2 is preferably made of a lightweight material, such as aluminum or stainless steel.

[0016] The vacuum suction through holes 10 are provided over the entire peripheral surface in the circumferential direction of the cylinder 2a of the rotating cylinder 2, and may be provided in a range in the axial direction of the rotating cylinder 2, at least in the approximate central region, in such a range that a suction force sufficient to pull up the strip 60 from the upstream side can be secured. When the variable suction pull-up roller 1 is rotated while sucking air through the vacuum suction through holes 10 to suction the back surface of the strip 60, the strip 60 can be pulled up from the upstream side.

[0017] A side wall 8 having a shaft hole 12 is fixed to both ends of the cylindrical body 2a by fastening means 8a such as bolts and nuts. A sealing means such as a sealant coating is provided between the cylindrical body 2a and the side wall 8 to prevent air from flowing in and out. As shown in FIG. 3 or FIG. 4, bearings 15a and 15b are provided on the inner peripheral surface of the shaft hole 12 so that the rotating cylindrical body 2 rotates smoothly. A bearing 15b is interposed between the inner peripheral surface of the shaft hole 12 at the other end side N of the rotating cylindrical body 2 and the outer peripheral surface of the cylindrical shaft body 3, and a bearing 15a is interposed between the inner peripheral surface of the shaft hole 12 at the one end side M of the rotating cylindrical body 2 and the outer peripheral surface of the cylindrical portion 21a protruding from the one end side support member 21.

[0018] 1, 3 and 4, a sealing member 16 that covers the bearings 15a, 15b and the shaft hole 12 and blocks the inflow and outflow of air is fixed to the side wall 8 with fastening means 16a such as bolts and nuts. A sealing means (not shown) such as a sealant coating is provided between the side wall 8 and the sealing means 16. The sealing member 16 prevents air from being sucked in from the outside during suction, thereby enhancing the suction effect.

[0019] 1 and 4, the rotation drive means 50 may be, for example, a synchronous motor or a torque motor, and a means for transmitting the rotation of the rotation drive means 50 to the rotating cylindrical body 1 may be, for example, a belt transmission means or a gear transmission means. The case of the belt transmission means will be described below.

[0020] 1 and 4, the rotation of the rotary drive means 50 rotates the pulley 52, which in turn rotates the belt 51, and rotates the pulley 53. Since the pulley 53 is fixed to the sealing member 16 as shown in Fig. 4, when the rotary drive means 50 rotates, the rotational force is transmitted from the pulley 52, the belt 51, the pulley 53, the sealing means 16, and the side wall 8 to the cylindrical body 2a.

[0021] Next, the cylindrical shaft body 3 will be described. As shown in Figures 1, 3, 4 and 6, the cylindrical shaft body 3 is a fixed shaft that is coaxial with the rotating cylinder 2 and penetrates the shaft hole 12 inside the rotating cylinder 2, and serves as an axis for rotating the rotating cylinder 2. The cylindrical shaft body 3 has a suction through hole 11 in the center in the longitudinal direction, an opening on one end side M communicates with a pipe 80 that communicates with a vacuum device (not shown), and a sealing lid body 23 for preventing the intake of outside air is attached to the opening on the other end side N by a fixing means such as screwing.

[0022] A male screw portion 19b is threaded into the end of the one end side M, which is a component of switching means 19 that can switch the pipe member 6, to which the variable partition plate 5 is attached, between a rotatable state and a fixed state relative to the one end side support member 21. The material of the cylindrical shaft body 3 is preferably a strong material since it serves as the fixed shaft of the rotating cylinder 2 that rotates, and examples of such material include metal materials such as stainless steel, steel, and aluminum, non-metallic materials, and strong plastics.

[0023] 6(a) and 6(b), the fixed partition plate 4 is fixed to the cylindrical shaft 3 by a fixing method such as welding, fastening means, or integral molding so as to stand in the radial direction. As shown in FIG. 6(b), the fixed partition plate 4 is preferably erected in the vicinity of the suction through hole 11. This makes it easy to grasp where the suction through hole 11 is located on the circumference when the fixed partition plate 4 is fixed and the mounting angle of the variable partition plate 5 in the circumferential direction is changed to adjust the circumferential range of the space to be sucked, so that the position of the suction through hole 11 can be easily positioned between the fixed partition plate 4 and the variable partition plate 5.

[0024] As shown in Figures 1, 3 and 4, one end side M of the cylindrical shaft body 3 is supported by one end side support member 21 via a pipe member 6, and the other end side N is fixed to the other end side support member 22 by a switching means 24 that can be switched between a freely rotatable state and a fixed state.

[0025] The switching means 24 may be any means capable of putting the cylindrical shaft body 3 into a rotatable state or fixed to the other end support member 22, and as shown in Fig. 4, one example is a switching means 24 in which a fastening nut 24a is screwed into a male threaded portion 24b threaded into the end of the other end N of the cylindrical shaft body 3 to fasten it. The cylindrical shaft body 3 can be put into a rotatable state by loosening the fastening nut 24a, and the cylindrical shaft body 3 can be fixed to the other end support member 22 by screwing the fastening nut 24a and pressing it against the other end support member 22.

[0026] Next, the fixed partition plate 4 and the variable partition plate 5 will be described. As shown in Figures 1, 2(a), (b), 10 and 11, the space between the inner peripheral surface of the rotating cylinder 2, the outer peripheral surface of the cylindrical shaft body 3 and the side walls 8 at both ends is partitioned by the plate-shaped fixed partition plate 4 and the variable partition plate 5 into a space 30 on the side having the suction through hole 11 and a space 31 on the side not having the suction through hole 11.

[0027] 2(a) and 2(b), the space 30 on the side having the suction through hole 11 includes the vacuum suction through holes 10a to 10g, and the air in the space 30 is sucked into a vacuum device through the suction through hole 11, thereby suctioning the band-shaped body 60 to the rotating cylinder 2. The space 31 on the side not having the suction through hole 11 includes the vacuum suction through holes 10h to 10t, and air is not sucked from the space 31 into the vacuum device.

[0028] The circumferential range of the space 30 is adjusted by the fixed partition plate 4 and the variable partition plate 5 so as not to deviate from the circumferential range where the band-like body 60 and the rotating cylinder 2 come into contact with each other. This allows the band-like body 60 to be sucked in the maximum possible range, and the space 30 can be prevented from being included in the range where the band-like body 60 and the rotating cylinder 2 do not come into contact with each other.

[0029] 12, in a comparative example, when the two partition plates separating the space 30 and the space 31 are both fixed partition plates 4, if the strip 60 does not cover the vacuum suction through hole 10a provided in the cylinder 2a of the rotating cylinder 2, the vacuum device will suck in outside air through the vacuum suction through hole 10a, making it difficult to bring the inside of the space 30 close to a vacuum state, and therefore making it difficult to vacuum-suck the strip 60 to the cylinder 2a. This causes a problem in that the strip 60 cannot be drawn in from the upstream side.

[0030] The circumferential range of the rotating cylinder 2 of the space 30 can be changed by changing the circumferential angle of the fixed partition plate 4 by rotating the cylindrical shaft 3, and by changing the circumferential angle of the variable partition plate 5 by rotating a handle 7 integrated with or fixed to the pipe member 6.

[0031] When the variable suction type take-up roller 1 is operated by the rotation drive means 50, the cylindrical shaft 3, the fixed partition plate 4 and the variable partition plate 5 are fixed, and the rotating cylindrical body 2 is rotating, so that air is only sucked in from the vacuum suction through hole 10 which enters the space 30 partitioned by the fixed partition plate 4 and the variable partition plate 5 while rotating, and therefore the strip-shaped body 60 adsorbed to the cylindrical rotating body 2 can be picked up from the upstream side by rotating while still adsorbed.

[0032] Next, the fixed partition plate 4 will be described. As shown in Fig. 1, Fig. 6 and Fig. 13, the fixed partition plate 4 has a size sufficient to separate the space 30 from the space 31, and is fixed to the outer circumferential surface of the cylindrical shaft body 3 from the one end side M of the suction through hole 11 to the inner surface of the side wall 8 of the other end side N in parallel with the axis of the cylindrical shaft body 3. The cylindrical shaft body 3 and the fixed partition plate 4 may be fixed by welding, or the cylindrical shaft body 3 and the fixed partition plate 4 may be integrally molded.

[0033] As shown in Figure 13, the fixed partition plate 4 is integrally connected to the cylindrical shaft 3 by welding, fastening means, integral molding, etc., and the peripheral edge of the fixed partition plate 4 is in contact with the outer peripheral surface of the pipe member 6, the inner peripheral surface of the cylinder 2a, the inner surface of the side wall 8 at one end side M, and the inner surface of the side wall 8 at the other end side N, and when the rotating cylinder 2 rotates, the peripheral edge of the fixed partition plate 4 is in a sliding state with the inner peripheral surface of the cylinder 2a, the inner surface of the side wall 8 at one end side M, and the inner surface of the side wall 8 at the other end side N.

[0034] Since the fixed partition plate 4 is integrally connected to the cylindrical shaft body 3, in order to make the circumferential position of the fixed partition plate 4 relative to the cylindrical shaft body 3 clear from the outside, the circumferential position of the fixed partition plate 4 is marked on the part exposed to the outside of the cylindrical shaft body 3 to clearly indicate it.

[0035] Next, a method of adjusting the orientation (angle adjustment) of the fixed partition plate 4 to the position where the band-like body 60 and the rotating cylinder 2 come into contact will be described. The fastening nut a, which is the switching means 24, is loosened, and as shown in Fig. 11 or 12, the circumferential position X where the band-like body 60 moving from the upstream side starts to come into contact with the rotating cylinder 2, that is, the circumferential angle when the cylindrical shaft body 3 is the central axis, is confirmed, and, for example, the cylindrical shaft body 3 is adjusted while being rotated based on the mark made on the cylindrical shaft body 3 so that the fixed partition plate 4 is located at the position X where the band-like body 60 starts to come into contact with the rotating cylinder 2. After the position adjustment is completed, the fastening nut 24a is screwed into the male thread portion 24b threaded into the cylindrical shaft body 3, and the cylindrical shaft body 3 is fixed to the other end side support member 22, thereby fixing the fixed partition plate 4.

[0036] Next, the variable partition plate 5 will be described. As shown in Figs. 1, 3 and 7, the variable partition plate 5 has a size sufficient to separate the space 30 from the space 31, and is fixed to the outer circumferential surface of a pipe member 6 having one end M fitted through the suction through hole 11 of the cylindrical shaft body 3, and a handle 7 for varying the angle of the variable partition plate 5 is attached to a position of the pipe member 6 that is outside the rotating cylindrical body 2. The variable partition plate 5 and the pipe member 6 may be fixed to each other by welding or a fastening means, or the variable partition plate 5 and the pipe member 6 may be integrally molded. The handle 7 and the pipe member 6 are fixed to each other by a combination of a key groove and a key, welding, a fastening means, or the like.

[0037] The orientation of the handle 7 is set to the same direction as the circumferential direction about the axis of the pipe member 6 to which the variable partition plate 5 is fixed. This makes it possible to easily grasp the circumferential direction (angle) of the variable partition plate 5, which is inside the rotating cylindrical body 2 and difficult to see from the outside, from the circumferential direction (angle) of the handle 7.

[0038] The pipe member 6 is fitted into the notch G of the fixed partition plate 4 shown in Fig. 6(a) so that no gap is generated. In order to fix the depth position and circumferential direction when fitted, as shown in Figs. 1 and 3, a cylindrical collar 18 is interposed between the pipe member 6 and the one-end support member 21, and a fastening nut 19a is screwed into a male threaded portion 19b that is threaded into the cylindrical shaft body 3, thereby fixing the variable partition plate 5 integrated with the pipe member 6 to the one-end support member 21. The length of the cylindrical collar 18 is set to a length at which the end of the other end side N of the pipe member 6 abuts against the other end side N of the notch G when the fastening nut 19a is screwed into the male threaded portion 19b to fix the variable partition plate 5.

[0039] As shown in Figure 14, the variable partition plate 5 is integrally connected to the pipe member 6 by welding, fastening means, integral molding, etc., and the peripheral edge of the variable partition plate 5 is in contact with the outer peripheral surface of the cylindrical shaft 3, the inner peripheral surface of the cylinder 2a, the inner surface of the side wall 8 at one end side M, and the inner surface of the side wall 8 at the other end side N, and when the rotating cylinder 2 rotates, the peripheral edge of the variable partition plate 5 is in a sliding state with the inner peripheral surface of the cylinder 2a, the inner surface of the side wall 8 at one end side M, and the inner surface of the side wall 8 at the other end side N.

[0040] Next, a method of adjusting the circumferential direction (angle adjustment) of the variable partition plate 5 will be described. First, the tightening nut 19a of the switching means 19 is loosened to set the variable partition plate 5 in a freely rotatable state. Then, as shown in FIG. 10 or FIG. 11, the position Y where the band-shaped body 60 starts to move away from the rotating cylindrical body 2, that is, the circumferential position Y, is confirmed, and the handle 7 is rotated so that the orientation of the handle 7 is in the same position as the position Y. When the handle 7 is adjusted while being turned so that the variable partition plate 5 is in the circumferential position Y where the band-shaped body 60 moves away from the rotating cylindrical body 2, in order to fix the state after the adjustment, the tightening nut 19a is screwed into the male thread portion 19b of the cylindrical shaft body 3, and the variable partition plate 5 integrated with the pipe member 6 is pressed against the one-end side support member 21 via the handle 7 and the collar 18 to be fixed.

[0041] As shown in Figures 1 and 3, the one end side M of the cylindrical shaft body 3 is rotatably inserted into the cylindrical portion 21a protruding from the one end side support member 21 of the pipe member 6, into which the cylindrical shaft body 3 is fitted, and a bearing 15a is interposed between the inner surface of the shaft hole 12 of the one end side M of the rotating cylinder 2 and the outer surface of the cylindrical portion 21a protruding from the one end side support member 21.

[0042] The variable suction type take-up roller 1 of the present invention operates as follows: when suction is started from a vacuum device, air in the pipeline 80 is sucked, air inside the cylindrical shaft 3 is sucked, air in the space 30 communicating with the suction through-hole 11 is sucked, and air on the back side of the strip 60 is sucked through the vacuum suction through-hole 10 of the rotating cylinder 2, so that the strip 60 is adsorbed to the surface of the rotating cylinder 2. The rotating cylinder 2 rotates by the transmission of rotational force from the rotation drive means 50, so that the strip 60 having an adhesive portion 62 on one side can be taken up from the upstream side with the base strip 61 on the back side being adsorbed.

[0043] Therefore, since the strip 60 can be forcibly taken up from the upstream side and sent out toward the downstream side, even if there is a process on the downstream side where the strip 60 becomes slack, i.e., even if a means for winding up the strip 60 is not installed on the downstream side, the variable suction type take-up roller 1 of the present invention can forcibly take up the strip 60 from the upstream side and send it out toward the downstream side.

[0044] Next, an example of the use of the variable suction type take-up roller 1 of the present invention will be described. The variable suction type take-up roller 1 includes an adhesive substance application roller 43 that rotates by immersing the lower end in an adhesive liquid 70 stored in a tank 71, a base band feed roller 41 that winds and sends out a band-shaped base band 61 made of cloth, paper, plastic, etc., as shown in Figures 8 and 9, and a variable suction type take-up roller 40a that faces the adhesive substance application roller 43. At the pressure contact point between the adhesive substance application roller 43 and the variable suction type take-up roller 40a, an adhesive part 62 is applied to one side of the base band 61, forming a two-layered band-shaped body 60. The adhesive substance application roller 43 also includes a scraper 72 that removes the adhesive liquid 70 remaining downstream of the pressure contact point.

[0045] The strip 60 having an applied portion made of adhesive 62 on one side can be taken up from the upstream side and sent out toward the downstream side by rotating only the base portion 61 side by suction with the variable suction type take-up rollers 40b, 40c, 40d, and 40e so that the adhesive portion 62 does not come into contact with each other. In a system as shown in Fig. 8, for example, the strip 60 sent from two directions can be bonded together at the adhesive portion 62 side by processing means 73 to produce an integrated strip-shaped product.

[0046] In the system shown in FIG. 8, the variable suction type take-up rollers 40a to 40e are the variable suction type take-up rollers 1. The circumferential range of the variable suction type take-up roller 40a in contact with the strip 60, the circumferential range of the variable suction type take-up roller 40b in contact with the strip 60, the circumferential range of the variable suction type take-up roller 40c in contact with the strip 60, the circumferential range of the variable suction type take-up roller 40d in contact with the strip 60, and the circumferential range of the variable suction type take-up roller 40e in contact with the strip 60 are different from each other. Therefore, in order to ensure suction and effectively perform suction, it is necessary to be able to suction only from the same range as the circumferential range of contact, and the variable suction type take-up roller 1 of the present invention can adjust the circumferential range that can be sucked according to each of the variable suction type take-up rollers 40a to 40e. Therefore, the strip 60 having the adhesive portion 62 on one side can be effectively taken up from the upstream side and sent out to the downstream side. [Explanation of symbols]

[0047] 1 Variable suction take-up roller 2 Rotating Cylinder 2a Cylinder 3 Cylindrical shaft 4 Fixed partition plate 5 Variable partition 6 Pipe members 7 Handle 8 side wall 8a Fastening means 10 Through hole for vacuum suction 11 Suction through hole 12 Hole for shaft 15a bearing 15b Bearing 16 Sealing member 16a Fastening means 18 Color 19 Switching Method 19a Fastening nut 19b Male thread 21 One end support member 21a Cylindrical part 22 Other end support member 23 Sealing lid 24 Switching Method 24a Fastening nut 24b Male thread 30 space 31 Space 40a~40e Variable suction pull roller 41 Base belt feed roller 43 Adhesive substance application roller 50 Rotational drive means 51 Belt 52 Pulley 53 Pulley 60 Band 61 Base Band 62 Adhesive part 70 Adhesive liquid 71 tank 72 Scraper 73 Processing Means 80 conduit M One end side N Other end side

Claims

1. a rotating cylinder having a plurality of vacuum suction through holes formed around at least the entire circumference of a central region in a longitudinal direction, a side wall having shaft holes at both ends, and connected to a rotation drive means for rotation; a cylindrical shaft body which is coaxial with the rotating cylinder body and extends through the shaft hole inside the rotating cylinder body, has a suction through hole at the center in the longitudinal direction, has an opening on one end side connected to a pipeline of a vacuum device, and has a sealing lid attached to an opening on the other end side; a plate-like fixed partition plate and a plate-like variable partition plate which divide a space between an inner peripheral surface of the rotating cylinder, an outer peripheral surface of the cylindrical shaft, and both end side walls into a space having the suction through hole and a space not having the suction through hole, The fixed partition plate has a size sufficient to separate the space, and is fixed to an outer circumferential surface of the other end of the cylindrical shaft body. the variable partition plate has a size sufficient to divide the space, is inserted in a radial gap between the cylindrical shaft body and the fixed partition plate at one end side, and is fixed to an outer peripheral surface of a pipe member rotatable relative to the cylindrical shaft body; A handle for varying the angle of the variable partition plate in the circumferential direction is attached to one end of the pipe member, a switching means for switching the cylindrical shaft body between a rotatable state and a fixed state with respect to the other end side of the cylindrical shaft body with respect to the other end side support member; A variable suction pull-up roller, characterized in that a switching means is provided on the one end side of the pipe member, which can switch the pipe member between a rotatable state and a fixed state relative to the one end side support member.

2. 2. The variable suction pull roller according to claim 1, wherein a sealing member is provided on a side wall of the rotating cylinder to prevent air from flowing through the shaft hole provided on the side wall.

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