Web conveying device

Abstract

The present application provides a roll material conveying device capable of making a roll material pressing member retreat by using a simple mechanism to suppress manufacturing cost. There are a chain (7) engaged with a sprocket (6) and driven along a conveying direction A of a roll material (1), and a roll material leading-in member (10) which mounts a leading edge portion (1a) of the roll material (1) and leads the roll material (1) into a gap by driving of the chain (7). Moreover, a cam roller member (32) is provided at both end portions of the roll material leading-in member (10), and the cam roller member (32) is brought into abutment with a cam member (34). Thus, the roll material pressing member (20) is made to retreat in a direction away from an outer peripheral surface (5f), and the roll material leading-in member (10) is made to pass through the gap without interference.

Description

Technical Field

[0001] This invention relates to a roll material conveying device. Background Technology

[0002] Conventionally, as a coil conveying device for manufacturing battery electrodes, a tab forming machine is known that performs laser processing or similar operations while conveying the coil as a workpiece. For example, Patent Document 1 discloses a coil guide member used to allow the coil to pass from upstream to downstream of the conveying device in advance.

[0003] It is desirable to install a roll pressing component on the guide roller so that the roll of foil does not float off the outer periphery due to changes in the conveying direction.

[0004] [Existing Technical Documents]

[0005] [Patent Literature]

[0006] Patent Document 1: Japanese Patent Publication No. 2019-26466. Summary of the Invention

[0007] [The technical problem the invention aims to solve]

[0008] In conventional roll material conveying devices, the gap between the roll material pressing component and the outer circumferential surface of the guide roller is set to a size that allows the roll material to pass through. Therefore, when the roll material guide component, whose thickness dimension is larger than the roll material, passes through the gap, the roll material pressing component needs to be moved to widen the gap in order to avoid interference.

[0009] In conventional roll material conveying devices, when the roll material guide component approaches the gap, for example, the driving force of an actuator such as a cylinder is used to cause the roll material pressing component to retract in a direction away from the outer peripheral surface of the guide roller to widen the gap.

[0010] However, in order to ensure that the roll pressing component moves in a timely manner, sensors and actuators are needed to detect the proximity of the roll guiding component. Therefore, further improvements are required to reduce manufacturing costs by minimizing the increase in the number of parts.

[0011] Therefore, the object of the present invention is to provide a roll conveying device that can reduce manufacturing costs by allowing the roll pressing component to retract with a simple mechanism.

[0012] [Technical solutions used to solve technical problems]

[0013] The roll material conveying device of the present invention is characterized by comprising: a guide roller for supporting and guiding a strip-shaped roll material; a roll material pressing member for allowing the roll material to pass through a gap provided between it and the outer peripheral surface of the guide roller; and a sprocket disposed on the rotation axis of the guide roller. Furthermore, the roll material conveying device includes: a chain that engages with the sprocket and is driven along the conveying direction of the roll material; and a roll material guiding member that mounts the leading edge of the roll material and guides the roll material into the gap by the drive of the chain. Moreover, the roll material conveying device includes: a cam roller member disposed on the roll material guiding member; and a cam member that abuts against the cam roller member and retracts the roll material pressing member in a direction away from the outer peripheral surface.

[0014] [Invention Effects]

[0015] According to the present invention, a roll conveying device is provided that can reduce manufacturing costs by using a simple mechanism to retract the roll pressing component. Attached Figure Description

[0016] Figure 1 This is a schematic side view illustrating the overall structure of the tab forming machine equipped with the roll material conveying device of Embodiment 1.

[0017] Figure 2 This describes the structure of a general roll pressing component that is commonly used in the first and second conveying paths of a roll conveying device, equivalent to... Figure 1 A three-dimensional view of the guide roller in the direction of arrow II.

[0018] Figure 3 This is a perspective view showing the laser processing of tabs on the side edge of a coil in a tab forming machine equipped with a coil conveying device.

[0019] Figure 4 This is a three-dimensional view showing the enlarged main parts of the structure of the roll pressing component and linkage mechanism in the roll conveying device.

[0020] Figure 5 This is a top view showing the situation in a roll material conveying device where a roll material pressing component presses down on the tabs protruding from the side edge of the roll material.

[0021] Figure 6 This describes the structure of the guide rollers in the roll material conveying device as seen from above. Figure 2 Top view in the direction of the middle arrow VI.

[0022] Figure 7 This describes the structure of the guide rollers in the roll material conveying device as seen from the front. Figure 2 Front view in the direction of arrow VII.

[0023] Figure 8This indicates the relationship between the guide rollers, the roll pressing components, and the cam components in the roll material conveying device. Figure 7 A cross-sectional view at the location of line VIII-VIII in the middle.

[0024] Figure 9 This describes the relationship between the roll material feeding component, guide rollers, and linkage mechanism in a roll material conveying device. Figure 7 Side view as seen in the direction of the middle arrow IX.

[0025] Figure 10 illustrates the operation of the linkage mechanism in the roll material conveying device that causes the roll material pressing component to retract in a direction away from the outer peripheral surface of the guide roller. (a) is a side view showing the state before the cam roller comes into contact with the cam component. (b) is a side view showing the state in which the cam roller comes into contact with the cam component. (c) is a side view showing the state in which the cam roller causes the cam component to jump up and swing in a direction away from the guide roller.

[0026] Figure 11 illustrates the action of the coil pressing member, which jumps up due to the action of the linkage mechanism, resetting towards the outer peripheral surface of the guide roller in the coil conveying device. (a) is a side view showing the rod-shaped member passing through the widened gap as the coil pressing member leaves the outer peripheral surface of the guide roller. (b) is a side view showing the cam roller abutting against the extended surface of the cam member. (c) is a side view showing the cam roller at the end position of the extended surface of the cam member.

[0027] Figure 12 This is a perspective view illustrating the situation where the roll material guide component in the roll material conveying device moves simultaneously with the movement of the chain-directing guide roller in the second conveying path.

[0028] Figure 13 This is a perspective view illustrating the situation in which the roll material in the roll material conveying device passes through the gap between the guide roller and the roll material pressing component.

[0029] Figure 14 This is a perspective view illustrating the structure of the roll pressing member in the roll conveying device of Embodiment 2, showing the situation where the roll inlet member moves simultaneously with the movement of the chain guide roller and the roll pressing member covering approximately the entire width.

[0030] Figure 15 This is a side view illustrating the structure of the guide roller, the roll pressing component, and the cam component in the roll conveying device of Embodiment 2. Detailed Implementation

[0031] Hereinafter, embodiments of the roll material conveying device of the present invention will be described with appropriate reference to the accompanying drawings. Furthermore, in the present invention, when referring to up / down and left / right, unless otherwise specified, the description is basically based on up / down or left / right with the conveying direction of the roll material 1 as the front-to-back direction. Furthermore, "left-to-right direction" of the roll material 1 is synonymous with "width direction," and "left and right pair" is synonymous with left and right pairs along the center line of the length direction sandwiching the roll material 1. Additionally, the same reference numerals are assigned to the same constituent elements, and repeated descriptions thereof are omitted.

[0032] [Implementation Method 1]

[0033] Figure 1 This diagram illustrates the structure of an entire electrode sheet manufacturing apparatus equipped with an embodiment of the roll conveying device 100 of the present invention. The electrode sheet manufacturing apparatus manufactures electrode sheets with tabs for use in lithium secondary batteries, lithium capacitors, capacitors, and the like.

[0034] The electrode sheet manufacturing apparatus with tabs includes: a roll material conveying device 100, a feeding device 2a, a winding device 2b, and a laser processing device 8. The feeding device 2a houses a strip electrode, which is the material used to form the tab-bearing electrode sheet, from the roll material 1 wound into a roller shape. The winding device 2b is configured to rotate and drive a winding shaft to wind the processed roll material 1 into a roller shape.

[0035] Furthermore, the roll conveying device 100 conveys the strip roll 1 delivered from the delivery device 2a along the conveying path to the winding device 2b.

[0036] Therefore, the roll material conveying device 100 includes: a first conveying section 3 located upstream in the conveying direction A of the roll material 1; and a second conveying section 4 located downstream of the first conveying section 3. The first conveying section 3 has a plurality of guide rollers 5a and guide rollers 5c arranged in pairs on the left and right sides to engage the sprocket 6 with the chain 7 of the first conveying section 3.

[0037] Furthermore, guide roller 5a and guide roller 5b of the second conveying section 4 (described later) convey the roll material 1, but guide roller 5c and guide roller 5d of the second conveying section 4 (described later) do not convey the roll material 1.

[0038] Furthermore, the roll pressing component 20 and the linkage mechanism 30 may not be required in the first conveying section 3. Alternatively, it may be as follows... Figure 2 As shown, the roll pressing component 20 and the linkage mechanism 30 described later are provided on any one of the guide rollers, such as guide roller 5a.

[0039] Here, the second conveying section 4 will be mainly described. The second conveying section 4 has multiple guide rollers 5b and guide rollers 5d. The guide rollers 5b have a left and right pair of sprockets 6, which engage with the chain 7 of the second conveying section 4, located at both ends of the rotating shaft. The guide rollers 5b are supported rotatably relative to the rotating shaft by means of bearings. Similarly, the sprockets 6 are supported rotatably relative to the rotating shaft by means of bearings. Thus, the guide rollers 5b and the sprockets 6 can rotate freely relative to each other with respect to the rotating shaft.

[0040] For example, when the roll material 1 is passed from upstream to downstream before processing, the sprocket 6 is rotated by a motor or manually. At this time, the roll material guide component 10 also moves in the conveying direction due to the chain 7.

[0041] When the roll 1 is attached to and abuts against the outer circumferential surface 5f of the guide roller 5b, the guide roller 5b rotates using the friction of the roll 1. When the roll 1 is not attached to the guide roller 5b, the guide roller 5b does not rotate.

[0042] Furthermore, during the processing of the roll 1, when the roll 1 is wound onto the winding device 2b and moves, the guide roller 5b rotates using the friction of the roll 1 hanging on the guide roller 5b.

[0043] Furthermore, in Embodiment 1, a chain 7 is used as a power transmission component and a sprocket 6 is used as a rolling wheel. However, a belt and a pulley may be used instead of the chain 7 and the sprocket 6.

[0044] Furthermore, the roll material conveying device 100 includes a pair of left and right roll material pressing members 20, which press the roll material 1 in... Figure 2 The gap between the guide roller 5 and the outer peripheral surface of the guide roller 5 is shown; and the rod-shaped roll guide member 10, which is positioned between a pair of left and right chains 7, 7, with its length direction orthogonal to the direction of movement and parallel to the axial direction of the guide roller 5.

[0045] The roll material guide component 10 is used only in the pre-processing stage when the roll material 1 is mounted on the feed device 2a and is used to guide the roll material 1 from the feed device 2a to the take-up device 2b.

[0046] Therefore, the left and right ends of the roll material guide component 10 are connected to the left and right chains 7 respectively.

[0047] Furthermore, the roll material guide component 10 attaches the leading edge 1a of the roll material 1 to install it. In the guide process before the processing process, the roll material 1 is guided in advance by the drive of the chain 7 to the gap formed between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f of the guide roller 5b.

[0048] In addition, the roll material conveying device 100 is equipped with a linkage mechanism 30. For example... Figure 4As shown, the linkage mechanism 30 mainly includes: a cam roller component 32, which is rotatably disposed at the end of the roll material guide component 10; and a cam component 34, which is freely oscillating about the swing axis 35 of the plate-shaped bearing component 15 that rotatably supports the guide roller 5b.

[0049] The cam member 34 is provided with: a rolling surface 36, which is abutted by the cam roller member 32 in a rolling manner; and a support beam member 38, which is fixed to the upper surface of the swing side of the cam member 34 and supports the roll pressing member 20. The support beam member 38 is arranged so that its length direction is parallel to the axial direction of the guide roller 5b, and is configured to swing in a direction that approaches or moves away from the outer peripheral surface 5f of the guide roller 5b at the same time as the cam member 34, which fixes the left and right ends of the support beam member 38, swings.

[0050] Furthermore, the linkage mechanism 30 has a force-applying component 40. The force-applying component 40 in Embodiment 1 is mainly composed of a metal spring 41, and one end 41a of the spring 41 is connected via a cam-side fixed shaft to the outer end 38a of the support beam component 38, which is provided on the cam component 34 and swings integrally. In addition, the other end 41b of the spring 41 is connected via a bearing-side fixed shaft to the outer surface 15a of the bearing component 15.

[0051] Therefore, the force-applying member 40 applies force in the direction that brings the rolling surface 36 of the cam member 34 closer to the outer peripheral surface 5f of the guide roller 5b. In Embodiment 1, a spring 41 is used as the force-applying member 40; however, if the force-applying member applies force in the direction that brings the rolling surface 36 closer to the outer peripheral surface 5f, it may also be a member that is elastically deformable and stretchable, such as one made of rubber.

[0052] Furthermore, the cam roller component 32 and the cam component 34 transmit the force that moves the roll material guide component 10 together with the chain 7 in the conveying direction to the roll material pressing component 20, and transform it into a force that causes the roll material pressing component 20 to leave the outer peripheral surface 5f of the guide roller 5 through oscillation.

[0053] Furthermore, when the cam roller component 32 is not in contact with the rolling surface 36 of the cam component 34, there is no force that causes it to swing away from the outer peripheral surface 5f of the guide roller 5. Therefore, by the force applied by the force application component 40, the swing ends of the support beam component 38 and the cam component 34 can swing in a manner close to the outer peripheral surface 5f and return to their initial positions (see Figure 10(a)).

[0054] Furthermore, the roll material conveying device 100 of Embodiment 1 includes a laser processing device 8 between the first conveying section 3 and the second conveying section 4.

[0055] The laser processing apparatus 8 is configured to include an irradiation unit (not shown) equipped with a galvanometer scanner, etc. The irradiation unit is located at at least one of the left or right side edges 1b of the roll 1, which is moving at high speed from the first transport unit 3 to the second transport unit 4. Figure 3 As shown, the material is irradiated with laser L and cut into rectangles, triangles, trapezoids, etc. Thus, one or more tabs 1c, which can become electrodes of a battery, are formed at desired intervals on the side edge 1b of the roll material 1.

[0056] Furthermore, the rolling surface 36 of the cam member 34 in this embodiment has an extended portion 36a. The extended portion 36a is formed by bending along the curved shape of the outer peripheral surface 5f of the guide roller 5b, and extends smoothly and continuously from the straight portion of the rolling surface 36 downstream in the conveying direction A of the roll 1. The extended portion 36a prolongs the contact time between the cam roller member 32 and the rolling surface 36, maintaining the force that swings away from the outer peripheral surface 5f of the guide roller 5, and suppressing the abrupt return of the cam member 34.

[0057] The roll pressing component 20 has a pressing plate 21 formed by bending the pressing surface along the outer peripheral surface 5f side of the guide roller 5b. The pressing plate 21 is fixed to the support beam component 38 by means of an attachment 22 provided on the side of the guide roller 5b of the support beam component 38.

[0058] In the conveying direction A of the pressing plate 21, the upstream end is inclined at a predetermined angle in the direction that moves upstream away from the outer peripheral surface 5f. Therefore, the gap between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f of the guide roller 5b is smoothly guided, thereby reducing lifting and twisting.

[0059] like Figure 5 As shown, when the roll 1 passes through the gap formed between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f of the guide roller 5b, the pressing plate 21 presses the convex tab 1c formed on the side edge 1b of the roll 1 in the direction of contact with the outer peripheral surface 5f. Therefore, when the tab 1c changes the conveying direction A along the curved shape of the outer peripheral surface 5f, it is possible to prevent the tab 1c from floating in the direction away from the outer peripheral surface 5f.

[0060] Figure 6 It is one of multiple guide rollers Figure 2 The top view of a guide roller 5b as seen in the direction of arrow VI. Furthermore, regarding the other guide rollers 5b, the mounting angles of the roll pressing component 20 and the linkage mechanism 30 differ, but their structures are generally the same, therefore descriptions are omitted.

[0061] The roll material conveying device 100 of Embodiment 1 includes a pair of roll material pressing members 20 on the left and right sides, which bend the side end face shape into an approximately S-shape.

[0062] The roll pressing components 20, 20 are fixed in a left-right symmetrical manner by means of a pair of left and right attachments 22 provided on the side of the guide roller of the long strip-shaped support beam component 38, with a predetermined interval in the length direction.

[0063] In addition, the support beam component 38 is configured such that the left and right outer ends 38a are connected to the upper surfaces of the cam components 34, 34 respectively arranged on the left and right sides of the guide roller 5b, and are parallel to the rotation axis direction of the guide roller 5b.

[0064] Figure 7 This is a view of guide roller 5b from the front. Figure 2 Front view in the direction of arrow VII.

[0065] Cam components 34, 34 oscillate around the swing shaft 35 as the swing center (see Figures 10 and 11). Through the swing of each cam component 34, the left and right roll pressing components 20, 20, supported by the support beam component 38, move simultaneously in a direction away from the outer peripheral surface 5f of the guide roller 5b or in a direction close to the outer peripheral surface 5f of the guide roller 5b.

[0066] This allows for the alteration of the size of the gap formed between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f of the guide roller 5b. Furthermore, the gap spacing can be increased or decreased from a size that allows only the roll 1 to pass through to a size that allows both the roll 1 and the roll guide member 10 to pass through.

[0067] like Figure 8 As shown, the rolling surface 36 of the cam component 34 is formed into an approximately S-shaped form when viewed from the side by means of an extended portion 36a connected to the downstream side in the conveying direction A and a guide inclined portion 36b connected to the upstream side.

[0068] The extended portion 36a extends downstream in the conveying direction A and is formed by bending along the curved shape of the outer peripheral surface 5f. Therefore, after the roll material guide member 10 has just passed through the gap (see Figure 11(c)), even if the conveying direction A of the cam roller member 32 rolling on the rolling surface 36 changes, the cam member 34 gradually swings in the approaching direction. This allows the roll material 1 and the outer peripheral surface 5f to be protected without the pressing plate 21 rapidly approaching and colliding with it.

[0069] Furthermore, the guide inclined surface 36b extends upstream in the conveying direction A and is inclined at a predetermined angle such that it moves away from the outer peripheral surface 5f as it moves upstream. As a result, the roll 1 can be guided and smoothly passed through the gap between itself and the outer peripheral surface 5f along the conveying direction A.

[0070] The linkage mechanism 30, with the aid of the cam roller assembly 32, cam assembly 34, and support beam assembly 38, changes the force that moves the roll material guide assembly 10 and the chain 7 together in the conveying direction A to a direction that is approximately orthogonal to the direction that causes the roll material pressing assembly 20 to leave the outer peripheral surface 5f of the guide roller 5b. The pressing plate 21 oscillates around the swing axis 35 with the changed force, thereby widening the gap formed between the pressing surface and the outer peripheral surface 5f.

[0071] Furthermore, the pressing plate 21 of the roll pressing member 20 moves in an arc about the swing axis 35 towards the outer peripheral surface 5f of the guide roller 5b due to the force of the force application member 40. Moreover, it is configured such that when the cam member 34 is reset to the initial position, the pressing plate 21 moves towards the outer peripheral surface 5f, allowing the roll 1 to pass through the gap between the pressing surface and the outer peripheral surface 5f of the guide roller 5b.

[0072] Next, use Figures 9-13 The effects of the roll material conveying device 100 in Embodiment 1 will be explained.

[0073] [Import Process]

[0074] First, the introduction process of guiding the roll 1 into the conveying path of the roll conveying device 100 before processing the roll 1 will be explained.

[0075] Driven by the rotational force of a power device such as an unshown motor (or manually by a handle, etc.). Figure 9 The sprocket 6 shown is driven by rotation. The chain 7, engaged with the teeth of the sprocket 6 by its rotation, moves along the first conveyor section 3 and the second conveyor section 4 respectively (see reference). Figure 1 ).

[0076] The roll material guide member 10, orthogonally arranged between a pair of chains 7, 7, attaches and holds the leading edge 1a of the roll material 1 (see reference). Figure 2 Therefore, simultaneously with the movement of chains 7, 7, the roll 1 is stretched by the roll guide member 10 and moves along the first conveyor section 3 and the second conveyor section 4.

[0077] Figure 10(a) shows the state of the cam roller component 32 moving along the second conveyor section 4 before it comes into contact with the cam component 34 (see reference). Figure 12 ).

[0078] In the second conveying section 4 of the roll material conveying device 100 of Embodiment 1, the roll material guide member 10 moves along the chain 7 (see reference 1). Figure 12 The roll material moves in the conveying direction A due to the movement of the roll material 1. The roll material guide member 10 stretches the leading edge 1a of the roll material 1 and approaches the guide roller 5b, and guides the roll material 1 between the outer peripheral surface 5f of the upper side of the guide roller 5b and the roll material pressing member 20.

[0079] Figure 10(b) shows the situation where the cam roller component 32 of the linkage mechanism 30 abuts against the cam component 34 as the roll material guide component 10 moves in the conveying direction A.

[0080] When the outer periphery of the cam roller component 32 comes into contact with the guide inclined surface 36b formed at a predetermined inclination angle on the rolling surface 36 of the cam component 34, the cam component 34 swings and jumps about the swing axis 35 as the swing center. As a result, the gap between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f of the guide roller 5b begins to widen.

[0081] In Figure 10(c), as the cam roller component 32 moves further in the conveying direction A, the cam roller component 32 rolls along the rolling surface 36 of the cam component 34, further increasing the oscillation of the cam component 34.

[0082] As a result, the gap between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f is expanded to a size that the roll material guide member 10 can pass through.

[0083] Figure 11(a) shows the situation where the roll material guide member 10 passes through the gap after the gap between the outer peripheral surface 5f and the roll material pressing member 20 has widened. As the cam member 34 swings, the roll material guide member 10 can stretch the roll material 1 and pass through the widened gap in a way that does not interfere with the guide roller 5b and the raised roll material pressing member 20.

[0084] Figure 11(b) shows the cam roller member 32 moving in the conveying direction A within the gap and abutting the extension portion 36a extending from the rolling surface 36 of the cam member 34. In this state, even if the roll guide member 10 and the chain 7 (not shown) move simultaneously and change the conveying direction A by approximately 90 degrees downward in the figure, the cam roller member 32 continues to roll along the extension portion 36a.

[0085] Therefore, the swing angle of the already raised cam component 34 is suppressed as the reset decreases, and the sharp reduction of the gap between the outer peripheral surface 5f and the roll pressing component 20 is suppressed.

[0086] Figure 11(c) shows the state in which the cam roller component 32 is located at the end position in the extension setting portion 36a of the cam component 34. At this time, the roll material 1 passes through the gap and is wound around while abutting against the outer peripheral surface 5f of the guide roller 5b, thus being located between the pressing plate 21 and the outer peripheral surface 5f.

[0087] The extension section 36a bends downstream in the conveying direction A of the roll material while extending the terminal. Therefore, compared to, for example, a cam member that maintains a straight line to the terminal while the horizontal rolling surface 36 remains unchanged, the cam member 34 of Embodiment 1 can gradually bring the pressing plate 21 closer to the outer peripheral surface 5f.

[0088] Therefore, even when the cam member 34 in the jumping state is forced by the force applied by the force member 40 to bring the pressing plate 21 closer to the outer peripheral surface 5f, the gap of the roll material conveying device 100 in Embodiment 1 does not decrease drastically. Thus, the roll material 1 and the outer peripheral surface 5f or the pressing plate 21 can be protected from damage.

[0089] like Figure 13 As shown, the roll material inlet component 10 is guided by the guide roller 5b to change the conveying direction A and move downwards. Figure 1 The guide rollers 5c and 5d shown are moved to a location that will not affect the processing steps.

[0090] After the roll material inlet component 10 passes through, the gap between the guide roller 5b and the roll material pressing components 20, 20 becomes smaller. Therefore, in subsequent processing steps, the pressing plates 21 of each roll material pressing component 20 can press the roll material 1 in the direction of the outer peripheral surface 5f while allowing it to pass through.

[0091] like Figure 5 As shown, the tab 1c, which protrudes from the side edge 1b, is rectangular and convex, and is located in the unformed layer portion where the active material layer 1e is not formed. Compared to the other portions of the roll 1 where the active material layer 1e is laminated, the tab 1c is thinner and more fragile.

[0092] In the processing step of the roll material conveying device 100 of Embodiment 1, each roll material pressing component 20 is reset to its initial position by the force of the spring 41. In the reset state, the pressing plate 21 moves towards the outer peripheral surface 5f and forms a gap that allows the roll material 1 to pass through the gap between itself and the outer peripheral surface 5f of the guide roller 5b. Therefore, when the conveying direction A is changed, even if the side edge portion 1b including each tab 1c bends along the shape of the outer peripheral surface 5f, it is prevented from floating and is not easy to roll up.

[0093] In addition, such as Figure 13 As shown, the roll material conveying device 100 can press the left and right side edges 1b of the roll material 1 along its length direction using the pressing surfaces of the pressing plates 21 of the roll material pressing member 20.

[0094] The left and right roll pressing components 20 are supported by a support beam component 38. On the other hand, the rotation centers of the left and right pair of sprockets 6, 6 are located coaxially with the rotation axis of the guide roller 5b, making it easier to move the pair of chains 7, 7 at the same speed synchronously and at the same rotation speed. As a result, the cam roller components 32 provided on the left and right of the roll guiding component 10 simultaneously abut against the left and right cam components 34, 34 and oscillate at the same angle.

[0095] Thus, the support beam component 38 can swing the cam components 34 fixed at its two outer ends 38a, causing the left and right pairs of roll pressing components 20 to simultaneously move away from or towards the outer peripheral surface 5f of the guide roller 5b.

[0096] Therefore, the gap between the pressing surfaces of the independently formed left and right pressing plates 21 and the outer peripheral surface 5f of the guide roller 5b can be set to a size that allows the roll material 1 to pass through, thus preventing the roll material 1 from floating and twisting.

[0097] [Processing Steps]

[0098] Next, the processing steps for processing the roll 1 using the tab forming machine of the roll conveying device 100 with the embodiment will be described.

[0099] The roll 1 is fed into the roll conveyor 100, the leading edge 1a is mounted on the winding device 2b, and the roll 1 is processed while being wound and moved along the conveying direction A.

[0100] Furthermore, during the processing steps, the roll material guide component 10 is in Figure 1 The guide rollers 5c and 5d shown are moved to a location that will not affect the processing steps. Furthermore, during the processing steps, the chain 7, sprocket 6, and roll material guide component 10 remain stationary and are not used.

[0101] The first conveying unit 3 performs laser processing on the roll 1 fed from the delivery device 2a, adjusts the tension, and positions the roll 1 in a way that prevents it from snaking.

[0102] Furthermore, as the roll 1 moves from the first conveying section 3 to the second conveying section 4, a convex tab 1c is appropriately formed on the side edge 1b of the roll 1 at the position between the first conveying section 3 and the second conveying section 4 by irradiation from the laser L from the laser processing device 8.

[0103] In Embodiment 1, an unformed layer portion (without an active material layer 1e) is provided on the side edge 1b along the length direction of the roll 1 (see reference). Figure 3Furthermore, the tab 1c formed in the side edge portion 1b does not have an active material layer 1e. As a result, the side edge portion 1b and the tab 1c are thinner and more fragile than other portions with the active material layer 1e, and are easily deformed. They are prone to curling or twisting when the conveying direction A is changed by the guide roller 5b.

[0104] When the tab 1c formed on the roll 1 approaches the guide roller 5b, the gap between the side edge 1b of the tab 1c and the outer peripheral surface 5f of the guide roller 5b and the roll pressing member 20 passes through. The cam member 34 is reset to its initial position by the force of the force application member 40, so the size of the gap becomes narrow enough for the roll 1 to pass through.

[0105] Therefore, during the processing, the pressing plate 21 can press the roll 1 towards the outer peripheral surface 5f while allowing the roll 1 to pass through the gap between itself and the outer peripheral surface 5f of the guide roller 5b. The tabs 1c formed on the side edge 1b of the roll 1 are not prone to curling or twisting even if the guide roller 5b changes the conveying direction A.

[0106] As mentioned above, such as Figure 1 As shown, the roll material conveying device 100 of Embodiment 1 includes: a guide roller 5b that supports and guides the strip-shaped roll material 1; a roll material pressing member 20 that allows the roll material 1 to pass through a gap provided between it and the outer peripheral surface 5f of the guide roller 5b; and a sprocket 6 that is disposed on the rotation axis of the guide roller 5b. Furthermore, the roll material conveying device 100 includes: a chain 7 that engages with the sprocket 6 and is driven along the conveying direction A of the roll material 1; and a roll material guiding member 10 that mounts the leading edge 1a of the roll material 1 and guides the roll material 1 into the gap by driving the chain 7. Moreover, the roll material conveying device 100 includes: a cam roller member 32 disposed on the roll material guiding member 10; and a cam member 34 that abuts the cam roller member 32 and causes the roll material pressing member 20 to retract in a direction away from the outer peripheral surface 5f.

[0107] Furthermore, the roll material conveying device 100 includes a linkage mechanism 30, which transmits the force that moves the roll material guiding component 10 together with the chain 7 in the conveying direction A to the roll material pressing component 20, and transforms it into a force that causes the roll material pressing component 20 to move away from the outer peripheral surface 5f of the guide roller 5b.

[0108] According to the present invention, a roll material conveying device is provided that can suppress manufacturing costs by timely driving the roll material pressing member 20 using a simple mechanism.

[0109] Specifically, the force of the roll material guide member 10, which moves in the conveying direction together with the chain 7, is used to cause the roll material pressing member 20 to leave the outer peripheral surface 5f of the guide roller 5.

[0110] Thus, since the material guide member 10 moves away from the outer peripheral surface 5f of the guide roller 5 when it approaches the roll pressing member 20 via the movement of the chain 7, it can pass through the already widened gap without interfering with the roll pressing member 20.

[0111] Therefore, unlike conventional roll material conveying devices, there is no need for an actuator that uses a different driving force than the power used in roll material conveying to retract the roll material pressing member 20. In addition, even without the use of sensors or other detection devices, the timing of the retraction of the roll material pressing member 20 can be easily synchronized with the timing of the roll material guiding member 10 passing through the gap.

[0112] Therefore, the roll material conveying device 100 can reduce the number of detection parts such as actuators and sensors and simplify the structure, thus playing a practically beneficial role such as suppressing manufacturing costs.

[0113] In addition, such as Figure 1 As shown, the roll material conveying device 100 includes a laser processing device 8, which is disposed between the first conveying section 3 and the second conveying section 4, at the side edge 1b of the roll material 1 (see reference). Figure 3 Laser-processed tab 1c.

[0114] Therefore, even when using a laser processing device 8 to process the tabs 1c at high speed on the side edge 1b of the roll 1, lifting and twisting are prevented. This further improves production efficiency and reduces manufacturing costs.

[0115] Furthermore, the rolling wheel is a sprocket 6, and the belt is a chain 7 that meshes with the sprocket 6. Therefore, the rotational driving force of the sprocket 6 is converted into a force that moves the chain 7, which reliably engages with the teeth of the sprocket 6. Moreover, the movement of the roll material guide member 10 and the movement of the roll material pressing member 20 away from or towards the outer peripheral surface 5f of the guide roller 5b by means of the linkage mechanism 30 can be easily synchronized.

[0116] Furthermore, the linkage mechanism 30 includes: a cam roller member 32, which is rotatably disposed at the end of the roll material guide member 10; and a cam member 34, which is oscillatingly supported by the bearing member 15 of the guide roller 5b. The cam member 34 includes: a rolling surface 36 for the cam roller member 32 to roll against; and a support beam member 38 for supporting the roll material pressing member 20.

[0117] Therefore, by moving the roll guide member 10, the cam roller member 32 abuts against the cam member 34 and rolls along the rolling surface 36, causing the cam member 34 to oscillate.

[0118] In this way, the cam component 34 can use the support beam component 38 to make the roll pressing component 20 move away from or approach the outer peripheral surface 5f of the guide roller 5b.

[0119] Furthermore, the linkage mechanism 30 has a force-applying component 40, one end 41b of which is connected to the bearing component 15, and the other end 41a of which is connected to the cam component 34, applying force in a direction that brings the rolling surface 36 closer to the outer peripheral surface 5f of the guide roller 5b. Additionally, the linkage mechanism 30 has an extension portion 36a, which is formed by extending the rolling surface 36 and bending it downstream in the conveying direction A along the shape of the outer peripheral surface 5f of the guide roller 5b.

[0120] Therefore, the force applied by the force-applying member 40 via the cam member 34 causes the roll pressing member 20 to move toward the outer peripheral surface 5f of the guide roller 5b. This ensures that the gap between the pressing surface of the roll pressing member 20 and the outer peripheral surface 5f of the guide roller 5b is constant.

[0121] Therefore, the roll 1, which passes through the gap between the pressing surface of the pressing plate 21 and the outer peripheral surface 5f of the guide roller 5b, can be conveyed along the outer peripheral surface 5f of the guide roller 5b, and floating and twisting can be reliably prevented.

[0122] Furthermore, the extended portion 36a, which extends the rolling face 36, is formed by bending along the shape of the outer peripheral surface 5f of the guide roller 5b towards the downstream side of the conveying direction A. Therefore, the roll material 1 can be reliably installed with the gap in between, and the pressing plate 21 can be gradually moved closer to the outer peripheral surface 5f until the conveying direction A is changed.

[0123] Therefore, even if the force of the force-applying component 40 is used to reset the roll pressing component 20 towards the outer peripheral surface 5f, the gap will not decrease drastically. This protects the roll 1 and the outer peripheral surface 5f or the pressing plate 21 from damage.

[0124] [Implementation Method 2]

[0125] Figure 14 and Figure 15 This is a diagram showing the structure of the main parts of the roll material conveying device 200 according to Embodiment 2.

[0126] Furthermore, in Embodiment 2, the same reference numerals are used for parts that are structurally the same or even equivalent to those of the roll conveying device 100 in Embodiment 1, and descriptions are omitted, with the focus on the different parts.

[0127] like Figure 14As shown, in the roll material conveying device 200, the roll material pressing member 120 is elongated and has a transverse width that is substantially the same as the transverse width of the outer peripheral surface 5f of the guide roller 5b in the axial direction. It is arranged parallel to the extension direction in the length direction of the guide roller 5b and the support beam member 38.

[0128] In Embodiment 2, the roll pressing component 120 is fixed to the support beam component 38 in three places using a pair of left and right attachments 122, 122 provided on the side of the guide roller of the support beam component 38, and a central attachment 123 located in the middle of the two attachments 122, 122.

[0129] like Figure 15 As shown, the side end face shape of the pressing plate 121 constituting the roll pressing member 120 is similar to that of the pressing plate 21 in Embodiment 1 (see reference). Figure 8 The press plate 121 is formed such that the longitudinal section shape at any point along its length is bent into the same approximately S-shape.

[0130] Furthermore, the roll pressing member 120 can change the size of the gap formed between the pressing surface of the pressing plate 121 and the outer peripheral surface 5f of the guide roller 5b in response to the swing of the cam member 34 while being supported on the side of the guide roller 5b of the support beam member 38.

[0131] At this point, the pressing plate 121 of Embodiment 2 is supported by the support beam member 38 by means of attachments 122, 122 at three locations along the length direction and the central attachment 123. Therefore, the gap spacing can be maintained at the same size at any point along the length direction of the pressing plate 121.

[0132] Therefore, there is no need to worry about the roll material guide member 10 coming into contact with a portion of the outer peripheral surface 5f due to the tilt of the pressing plate 121 or a reduction in installation accuracy. Moreover, during the guide process, the gap can be widened or narrowed from a size that only the roll material 1 can pass through to a size that allows the roll material guide member 10 to pass through.

[0133] Furthermore, during the processing, when the roll 1 passes through the gap formed between the outer peripheral surface 5f of the guide roller 5b and the pressing plate 121, the roll 1 is pressed evenly towards the outer peripheral surface 5f at any point by the pressing surface of the elongated pressing plate 121 in the left and right width directions. Therefore, in addition to preventing the tabs 1c of the side edge 1b from floating up, it is also possible to prevent the entire roll 1 from floating up and twisting evenly at any point in the left and right width directions.

[0134] Other structures and effects are the same as those of the roll material conveying device 100 in Embodiment 1, so descriptions are omitted.

[0135] The present invention has been described above based on embodiments 1 and 2; however, the present invention is not limited to the structures described in embodiments 1 and 2. The present invention includes appropriate combinations and even selections of the structures described in embodiments 1 and 2, and its structure can be appropriately modified without departing from its spirit. Furthermore, regarding a part of the structure of embodiments 1 and 2, additions, deletions, or additions and substitutions of other structures can be made. Possible modifications to embodiments 1 and 2 described above include, for example, the following modifications.

[0136] That is, in the roll material conveying devices 100 and 200 of embodiments 1 and 2, a linkage mechanism 30 is provided between the two ends of the guide roller 5b of the second conveying section 4 and the roll material pressing members 20 and 120, but it is not particularly limited to this. For example, the linkage mechanism 30 may be provided on the guide rollers 5a and 5c of the first conveying section 3 and the guide roller 5b of the second conveying section 4 in accordance with the shape of the roll material 1, or the linkage mechanism 30 may be provided only on one end of the guide rollers 5a to 5d.

[0137] Furthermore, as long as the linkage mechanism 30 transmits the force that moves the roll material guide member 10 and the chain 7 together in the conveying direction to the roll material pressing member 20, and transforms it into a force that causes the roll material pressing member 20 to move away from the outer peripheral surface 5f of the guide roller 5, the number, shape, or combination of components of the linkage mechanism 30 is not particularly limited.

[0138] [Explanation of reference numerals in the attached figures]

[0139] 1. Roll material

[0140] 5b Guide Roller

[0141] 6 sprockets

[0142] 7 chains

[0143] 10. Roll material inlet component

[0144] 20 Roll pressing components

[0145] 32 Cam Roller Components

[0146] 34 Cam components

[0147] 100 and 200 roll material conveying devices

Claims

1. A web conveying device, characterized in that have: Guide rollers support and guide the strip-shaped roll material; A roll pressing component that allows the roll to pass through a gap provided between it and the outer peripheral surface of the guide roller; A sprocket, which is disposed on the rotating shaft of the guide roller; The chain, which is engaged with the sprocket, is driven along the conveying direction of the roll material; A roll material inlet component that mounts the leading edge of the roll material and guides the roll material into the gap by driving the chain; A cam roller assembly disposed on the roll material inlet assembly; and A cam component that abuts against the cam roller component and causes the roll pressing component to retract in a direction away from the outer peripheral surface. The cam roller component, which moves along with the conveying of the roll material, abuts against the cam component, which oscillates around the swing axis, causing the roll material pressing component to oscillate.

2. The roll material conveying device according to claim 1, characterized in that, The cam roller component is rotatably mounted at the end of the roll material inlet component. The cam component has: The swing shaft is supported by a bearing component that provides axial support for the guide roller; as well as The rolling face allows the cam roller assembly to roll and the roll pressing assembly to swing around the swing axis as the swing center.

3. The roll material conveying device according to claim 2, characterized in that, The roll material conveying device includes a force-applying component that applies force in a direction that brings the cam component closer to the guide roller. The rolling surface has an extension portion that bends along the shape of the outer peripheral surface in the conveying direction of the roll material.

4. The roll material conveying device according to claim 1, characterized in that, The roll material conveying device has a support beam component that supports the roll material pressing component. The support beam component is arranged such that its length direction is parallel to the axial direction of the guide roller. By fixing the left and right ends of the support beam component to the upper surface of the swing side of the cam component, the pressing surface of the roll material pressing component swings in a direction relative to the outer peripheral surface of the guide roller while the cam component swings.

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