JP7467484B2 - Slitters - Google Patents

Description

The present invention relates to a slitter that winds a narrowly slit web around a winding core attached to a winding shaft and transports the wound product.

Webs such as paper, nonwoven fabric, and plastic film are slit into narrow webs, which are then wound up to make a wound product. A device called a slitter is used to obtain these wound products. A slitter is a device that uses a cutter to slit a wide web being transported into a narrow web, and then winds up the narrow web onto a core attached to a winding shaft to make a wound product.

In conventional slitters like those described above, workers usually manually attached the reel to the winding shaft and removed the wound product, and each time the reel was full, the worker had to remove the wound product and install a new reel. This manual work not only increased the worker's workload when removing the wound product due to the weight of the product, but also required the slitter to be stopped while the reel was being attached or the wound product was being removed, reducing the operating rate.

Against this background, the applicant proposed in Patent Document 1 a slitter wound product discharge device that can extract wound products from a winding shaft without manual labor. With this device, after the wound product is extracted from the winding shaft, the next process of attaching the winding core to the winding shaft can be carried out quickly, reducing the workload of workers and improving the operating rate.

JP 2002-240997 A

However, although the device in Patent Document 1 can reduce the workload of workers, the worker still needs to install the reel core. This means that the slitter needs to be stopped until the worker can install a new reel core and start the next winding, and work cannot be resumed. In this case, if the slitter downtime is to be shortened, the worker needs to work frequently, and the device in Patent Document 1 does not eliminate the need for manual work by the worker.

The present invention has been made in consideration of the above-mentioned problems, and aims to provide a slitter that enables the automation of a series of processes and eliminates manual work by workers, thereby eliminating reduced operating rates and the workload of workers.

In order to achieve the above object, the slitter of the present invention comprises a winding device that winds a web slit into a narrow width around a core attached to a winding shaft to form a wound product, a product unloading device that conveys the wound product, and a working device that receives the core from a supply source and passes it to the winding device, and receives the wound product from the winding device, the working device comprising a core preparation means that receives the core from the core supply source, and a wound product transfer means that transfers the wound product received from the winding device to the product unloading device,
The arrangement of the working device can be switched between an arrangement in which the core preparation means can receive the core from the core supply source, an arrangement in which the wound product transfer means can receive the wound product, an arrangement in which the core preparation means can pass the core received by the winding device to the winding device, and an arrangement in which the wound product received by the wound product transfer means can be transported by the product removal device, and by switching the arrangement of the working device, the supply of the core to the winding device and the removal of the wound product can be performed continuously.

According to the slitter of the present invention, by switching the arrangement of the working device, it is possible to continuously supply the core to the winding device and discharge the wound product. Therefore, by appropriately automating the winding onto the core in the winding device, it is possible to automate the series of slitter processes, such as supplying the core to the winding device, winding onto the core in the winding device, and discharging the wound product. This eliminates the need for manual labor by operators in the series of slitter processes, thereby eliminating the reduction in the slitter's operating rate and the workload of operators due to manual labor.

The slitter of the present invention is preferably configured as follows. The winding device is a turret type having a pair of winding shafts, and while the web is being wound around one of the winding shafts, the wound product attached to the other winding shaft is received by the wound product transfer means, and the core received by the core preparation means is passed to the other winding shaft. With this configuration, preparation for a new winding operation can proceed without interrupting the winding operation, making the operation more efficient.

In a plan view of the slitter from above, it is preferable that the working device is rotatable around a pivot axis, and the position of the working device is changed by the rotation and movement of the working device in a planar direction. This configuration makes it possible to change the position of the working device without complicating the structure.

It is preferable that the core preparation means is a shaft into which the core can be inserted. This configuration allows the core to be handed over with a simple structure.

It is preferable that the rolled product transfer means is a shaft into which the rolled product can be inserted. This configuration allows the rolled product to be transferred with a simple structure.

It is preferable that the core preparation means is provided with an adhesive application device that applies adhesive to the core. With this configuration, the adhesive application device makes it possible to automate the process of applying adhesive (double-sided adhesive tape) to the core to secure the web at the start of winding to the core.

It is preferable to provide an end processing mechanism that attaches a label to the end of a fully wound product. With this configuration, since the end processing mechanism is provided, it is also possible to automate the task of attaching a label to the end of a fully wound product.

The effects of the present invention are as described above, and by switching the arrangement of the working device, the supply of the core to the winding device and the discharge of the wound product can be performed continuously. Therefore, by appropriately automating the winding onto the core in the winding device, it is possible to automate the series of slitter processes, including the supply of the core to the winding device, the winding onto the core in the winding device, and the discharge of the wound product. This makes it possible to eliminate manual work by workers in the series of slitter processes, thereby eliminating the decrease in the slitter's operating rate and the workload of workers due to manual work.

FIG. 1 is a side view of a slitter according to a first embodiment of the present invention. FIG. 2 is a front view of the slitter shown in FIG. 1 . FIG. 2 is a plan view of the slitter shown in FIG. 1 . FIG. 2 is an external perspective view of a winding core according to an embodiment of the present invention. 1 is an external perspective view of a rolled product according to an embodiment of the present invention; FIG. 1A is a side view showing a state at the end of winding, and FIG. 1B is a side view showing a state in which the turret has been rotated, in a first embodiment of the present invention. In the first embodiment of the present invention, FIG. 4C is a side view showing a state when the web is cross-cut, and FIG. 4D is a side view showing a state after the web has been cut. In the first embodiment of the present invention, FIG. 4E is a side view showing a state at the start of winding the web onto a new winding core, and FIG. 4F is a side view showing a state during winding of the web onto a second winding shaft. 4 is a flowchart showing a series of steps performed by the working device according to the first embodiment of the present invention. In the first embodiment of the present invention, (a) is a plan view showing the arrangement of the working device when receiving a winding core from a stocker, and (b) is a plan view showing the arrangement of the working device when the wound product transport shaft receives a wound product transported by a conveying plate. In the first embodiment of the present invention, FIG. 5C is a plan view showing the arrangement of the working device when the core preparation shaft transfers the received core to the winding device, and FIG. 5D is a plan view showing the state in which the first core has been sent out to the first winding shaft side. In the first embodiment of the present invention, FIG. 6(e) is a plan view showing the arrangement of the working device when the wound product is transported by the product removal device, and FIG. 6(f) is a plan view showing the state in which the wound product has been removed from the wound product transport shaft. FIG. 4 is a side view of a slitter according to a second embodiment of the present invention. FIG. 5 is a front view of a slitter according to a second embodiment of the present invention. FIG. 5 is a plan view of a slitter according to a second embodiment of the present invention. In a second embodiment of the present invention, FIG. 1A is a side view showing a state in which a wound product has been completed on a first winding shaft, and FIG. 1B is a side view showing a state in which a web is being wound on a second winding shaft. 5A is a plan view of a slitter showing a state before a core is supplied to a working device, and FIG. 5B is a side view showing a main part of the slitter in the same state, in a second embodiment of the present invention. In a second embodiment of the present invention, FIG. 1A is a plan view of a slitter showing the state in which the four winding cores at the front of the stocker are placed on a winding core receiving stand, and FIG. 1B is a side view showing a main part of the slitter in the same state. In a second embodiment of the present invention, (a) is a plan view of a slitter showing a state in which the winding cores on the winding core receiving base are aligned at a predetermined interval by an alignment device, and (b) is a side view showing a main part of the slitter in the same state. In a second embodiment of the present invention, FIG. 2A is a plan view of a slitter showing a state immediately before a winding core is attached to a first winding shaft, and FIG. 2B is a side view showing a main part of the slitter in the same state. FIG. 11 is a plan view of a slitter showing a state in which a winding core is attached to a first winding shaft in a second embodiment of the present invention. FIG. 11 is a plan view of the slitter in a second embodiment of the present invention, showing the arm and the tray in a retracted state. In a second embodiment of the present invention, (a) is a plan view of the slitter showing the state in which winding onto the winding core attached to the second winding shaft has been completed, and (b) is a side view showing the main parts of the winding device in the same state. In a second embodiment of the present invention, FIG. 2A is a plan view of a slitter showing a state in which a wound product is completed, and FIG. 2B is a side view showing a main part of a winding device in the same state. 13 is a plan view of a slitter showing a state immediately before the wound product is delivered to a product removal table of a product removal device in a second embodiment of the present invention. FIG. FIG. 11 is a plan view of a slitter showing a state in which a wound product has been delivered to a product unloading table in a second embodiment of the present invention. FIG. 11 is a side view showing a main part of a working device according to a second embodiment of the present invention.

Below, a slitter 1 according to one embodiment of the present invention will be described with reference to the drawings. The embodiments are broadly divided into a first embodiment and a second embodiment. First, the first embodiment will be described, followed by the second embodiment. Figure 1 is a side view of the slitter 1 according to the first embodiment, Figure 2 is a front view, and Figure 3 is a plan view. Each figure is a schematic diagram showing the basic configuration, and the details of the mechanism have been omitted as appropriate. Figure 4 shows an external perspective view of the winding core 8, and Figure 5 shows an external perspective view of the wound product 10.

In Figure 1, the main part of the slitter 1 is housed in a case 2. The slitter 1 is a device that slits a wide web 4 unwound from a wide web roll 3 to produce a narrow web 5, which is then wound onto a core 8 attached to a winding device 20 to produce a wound product 10 (see Figure 5).

As shown in Figure 4, the core 8 is a cylinder, and before it is attached to the winding device 20, a double-sided adhesive tape 11 is applied to fix the narrow web 5 at the beginning of winding. As shown in Figure 5, the wound product 10 is the narrow web 5 wound around the core 8, and an adhesive tape 12 is applied to the end to form the final product.

Although details will be explained later, the slitter 1 includes a device for transferring the winding core 8 to the winding device 20 and a device for transporting the wound product 10, and is a device that can automatically carry out a series of processes from producing the wound product 10 from the wide web roll 3 to transporting the wound product 10.

First, referring to Figure 1, an overview of the process from the wide web roll 3 to the completion of a wound product 10 will be described. In Figure 1, the wide web 4 unwound from the wide web roll 3 passes through multiple guide rollers, such as guide roller 6, and reaches the position of the slit blade 7. The wide web 4 is slit into multiple narrow webs 5 by the slit blade 7. The narrow web 5 is guided by roller 13 or roller 14 and supplied to one of the winding devices 20 arranged in two tiers, one above the other.

The winding device 20 is a turret type having a pair of winding shafts. For convenience, in this embodiment, the winding shafts are given different reference numerals, one of which is called the first winding shaft 22 and the other is called the second winding shaft 23. The first winding shaft 22 and the second winding shaft 23 are provided on the turret 21. The winding core 8 is attached to the first winding shaft 22 in advance, and the winding core 8 rotates together with the first winding shaft 22, so that the narrow web 5 is wound around the winding core 8. During winding, the winding core 8 is held by the first winding shaft 22 by a chuck mechanism (not shown) built into the first winding shaft 22. During winding, as shown in FIG. 2, the tip of the first winding shaft 22 is supported by a support plate 26, and the first winding shaft 22 is in a double-supported state. The support plate 26 is a movable body, and the support plate 26 can be retracted to place the first winding shaft 22 in a cantilever state. When the wide web roll 4 is slit into four narrow webs 5 by the slit blade 7, the four narrow webs are wound up alternately by the upper and lower winding devices 20.

Specifically, in FIG. 3, a wide web roll 4 is slit into four narrow webs 5a to 5d, and the webs 5a and 5c are wound onto an upper winding device 20, and the webs 5b and 5d are wound onto a lower winding device 20.

After winding is completed, as will be explained in more detail later, in Fig. 1, the narrow web 5 is cut by the cross-cut mechanism 40, and a label 12 (see Fig. 5) is applied to the end of the web 5 by the end processing mechanism 30 to complete the wound product 10. The completed wound product 10 is transported to the next process by the transport mechanism 35. The transport mechanism 35 is equipped with a transport plate 36, and as the transport plate 36 rotates, the tip of the transport plate 36 can move to the end face of the wound product 10 (see Fig. 8(e)).

2, for convenience, the wound product 10 is illustrated on the first winding shaft 22 of the lower winding device 20. This state corresponds to the state of FIG. 8(e) described later. In FIG. 2, the tip of the transport plate 36 is at the end face of the wound product 10, and the transport plate 36 moves along the guide shaft 25, so that the wound product 10 can be transported to the product removal device 65. During transport, the support plate 26 corresponding to the first winding shaft 22 can be retracted to place the first winding shaft 22 in a cantilevered state. If the first winding shaft 22 is placed in a cantilevered state, there is a risk that the first winding shaft 22 will bend and deform due to the load of the wound product 10. However, if the tip of the first winding shaft 22 and the tip of the wound product transport shaft 57 are connected before the support plate 26 is retracted, the load of the wound product 10 can be distributed, and deformation of the first winding shaft 22 can be suppressed.

Below, the steps after winding is completed will be explained with reference to Figures 6 to 8. Each of Figures 6 to 8 shows a side view of the vicinity of the winding device 20 in each step. Figure 6(a) shows the state at the end of winding. In this state, the web 5 has been fully wound around the winding core 8 attached to the first winding shaft 22, and the touch roll 15 that held down the web 5 during winding has been retracted.

Figure 6 (b) shows the state in which the turret 21 has been rotated. By rotating the turret 21, the positions of the first winding shaft 22 and the second winding shaft 23 in Figure 6 (a) have been swapped.

Figure 7 (c) shows the state when the web 5 is cross-cut. In this state, the retracted touch roll 15 returns, and the cross-cut receiving base 48 rises to a position supporting the web 5 due to the inclination of the cylinder 46 of the web receiving mechanism 45 and the extension of the rod 47. In addition, the cross-cut mechanism 40 rotates about the axis 41, and the shear blade 42 descends to a position facing the cross-cut receiving base 48 and abuts against the web 5. In this state, the shear blade 42 is caused to travel back and forth to cut the web 5.

Figure 7 (d) shows the state after the web 5 has been cut. In this state, winding of the web 5 onto the core 8 attached to the first winding shaft 22 has been completed. In addition, the end processing mechanism 30 rotates about its shaft 31, and the label application roller 32 abuts against the web 5 wound onto the core 8. From this state, the end processing mechanism 30 operates, and a label (adhesive tape) is pressed against the end of the web 5. As a result, a label 12 (see Figure 5) is applied to the end of the web 5, completing the wound product 10. The timing of applying the label 12 is calculated based on the cut position of the web 5 and the web speed.

8(e) shows the state when the web 5 starts to be wound around a new core 8. In this state, the web 5 is wound around the core 8 attached to the second winding shaft 23, and the wound product 10 is discharged from the winding device 20. This discharge is performed by the transport plate 36. In the state of FIG. 8(e), the tip of the transport plate 36 moves to the side of the wound product 10 due to the rotation of the transport plate 36 around the shaft 37. In this state, by moving the transport plate 36 in the axial direction of the first winding shaft 22, the wound product 10 is pushed by the transport plate 36 and moves in the axial direction of the first winding shaft 22, and the wound product 10 is discharged from the winding device 20. At the time of discharge, the grip of the winding core 8 on the first winding shaft 22 by the chuck mechanism is released, and as described above, the support plate 26 shown in FIG. 2 retracts after the wound product transfer shaft 57 is connected. The wound product 10 discharged from the winding device 20 is received by a wound product transport shaft 57, the details of which will be described later with reference to FIG.

8(f) shows the state in which the web 5 is being wound on the second winding shaft 23. In this state, the web 5 is wound onto the second winding shaft 23, and a new winding core 8 is attached to the first winding shaft 22. As will be described in detail later with reference to FIG. 11, when the transport plate 36 that has carried out the wound product 10 returns to the turret 21 side, the transport plate 36 transports the new winding core 8 received by the winding core preparation shaft 56 along the first winding shaft 22 to the turret 21 side, and the new winding core 8 is handed over to the first winding shaft 22.

As described above, in this embodiment, while the web 5 is being wound onto the second winding shaft 23, the wound product 10 attached to the first winding shaft 22 is received by the wound product transfer shaft 57 (wound product transfer means), and the core 8 received by the core preparation shaft 56 (core preparation means) is passed to the first winding shaft 22. With this configuration, preparation for a new winding operation can proceed without interrupting the winding operation, making the operation more efficient.

In addition, the winding device 20 of the present invention may use a winding device that does not have a second winding shaft 23. However, in that case, the winding operation would be interrupted while the wound product 10 is being transported and the winding core 8 is being attached, which would be inefficient. Therefore, it is preferable to adopt a so-called turret-type winding device that has a pair of a first winding shaft 22 and a second winding shaft 23, as in the winding device 20 of this embodiment.

The process from when the core 8 is supplied to the winding device 20 until it is discharged from the slitter 1 as the wound product 10 will be described below. In FIG. 3, the core 8 is placed on the stocker 50 from which it is supplied. As shown in FIG. 2, the core 8 is placed on the inclined surface of the stocker 50, and in FIG. 3, the core 8 is aligned with the lower end 51 of the inclined surface at the front. A working device 55 is disposed adjacent to the stocker 50. Details will be described later, but the working device 55 is a device that receives the core 8 from the stocker 50 and passes it to the winding device 20, and also receives the wound product 10 from the winding device 20.

The slitter 1 according to this embodiment can continuously supply the core 8 to the winding device 20 and transport the wound product 10 from the slitter 1 by switching the arrangement of the working device 55 shown in FIG. 3. In FIG. 3, the working device 55 has a core preparation shaft 56 and a wound product transport shaft 57, which are arranged in an L-shape with both shafts perpendicular to each other. The core preparation shaft 56 is a core preparation means that receives the core 8 from the stocker 50. The wound product transport shaft 57 is a wound product transport means that transports the wound product 10 received from the winding device 20 to the product removal device 65. The working device 55 can rotate around the pivot shaft 58 and can move in the X-axis direction (width direction of the slitter 1) and Y-axis direction (depth direction of the slitter 1), which are planar directions.

The core preparation shaft 56 as the core preparation means and the wound product transport shaft 57 as the wound product transport means are only examples, and any shaft capable of transferring the core 8 and the wound product 10 may be used. If the shaft is used as in this embodiment, the core 8 and the wound product 10 can be transferred with a simple structure.

Figure 9 is a flow chart showing a series of steps performed by the working device 55. Figures 10 to 12 are enlarged views of the vicinity of the working device 55 in Figure 3, and show the arrangement of the working device 55 in the order of steps. Figure 10(a) shows the arrangement of the working device 55 when receiving the core 8 from the stocker 50. In the state shown in this figure, the tip of the core preparation shaft 56 faces the core 8 on the stocker 50. In this state, the core 8 is pushed out towards the core preparation shaft 56 by a pushing means such as an air cylinder (not shown). As a result, the core preparation shaft 56 is inserted into the hollow part of the core 8 (see Figure 10(b)), and the core preparation shaft 56 receives the core 8 (step 100 in Figure 9).

Figure 10(b) shows the arrangement of the working device 55 when the rolled product transport shaft 57 receives the rolled product 10 transported by the transport plate 36. In this figure, the working device 55 has advanced from the state of Figure 10(a) toward the first winding shaft 22 (arrow a in Figure 10(a)), and the rolled product transport shaft 57 is connected to the first winding shaft 22. This allows the rolled product 10 transported along the first winding shaft 22 by the transport plate 36 to be received by the rolled product transport shaft 57 (step 101 in Figure 9).

Figure 11 (c) shows the arrangement of the working device 55 when the core preparation shaft 56 transfers the core 8 received by it to the first winding shaft 22. The working device 55 retreats from the state shown in Figure 10 (b) (arrow b in Figure 10 (b)), and the core preparation shaft 56 rotates around the pivot shaft 58 in the direction toward the first winding shaft 22 (arrow c in Figure 10 (b)), and then moves forward (arrow d in Figure 11 (c)). As a result, the core preparation shaft 56 is connected to the first winding shaft 22 as shown in Figure 11 (c). In addition, due to the above-mentioned rotation, the wound product 10 received by the wound product transfer shaft 57 is transferred to the product removal device 65 side.

The transport plate 36 is in a retracted state (see FIG. 1) from the state in FIG. 10(b), and in the state in FIG. 11(c), it has moved along the guide shaft 25 while remaining in the retracted state to the position of the end face of the first winding core 8. When the transport plate 36 is raised from the state in FIG. 11(c) (see FIG. 8(f)) and moved toward the first winding shaft 22 (arrow d), the winding core 8 can be sent out toward the first winding shaft 22 with the tip of the transport plate 36 abutting the end face of the winding core 8, and the winding core 8 can be handed over to the winding device 20 (step 102 in FIG. 9).

Figure 11 (d) shows the state in which the first winding core 8 has been sent out to the first winding shaft 22. As the winding core 8 is being transported to the first winding shaft 22, it passes under the adhesive application device 60 shown in Figure 2. At this time, the adhesive application device 60 applies double-sided tape 11 to the winding core 8 in accordance with the passing speed of the winding core 8 (see Figure 4). By repeating the same operation, the double-sided tape 11 is also applied to the second winding core 8 and it is sent out to the first winding shaft 22.

Figure 12 (e) shows the state when the rolled product 10 is removed by the product removal device 65. After the two winding cores 8 have been sent to the first winding shaft 22 from the state shown in Figure 11 (d), the working device 55 is retracted (arrow e in Figure 11 (d)) and moved toward the product removal device 65. The product removal device 65 is equipped with a transport plate 66. The transport mechanism including the transport plate 66 is the same as the transport mechanism 35 including the transport plate 36 (see Figure 1). In Figure 2, the transport plate 66 is in a retracted state, and is raised by rotational movement, so that the leading end moves to the position of the end face of the rolled product 10, as shown in Figure 12 (e).

12(e), the transport plate 66 is slid in the direction of pushing the rolled product 10 away from the rolled product transport shaft 57 (arrow f), so that the rolled product 10 is removed from the rolled product transport shaft 57 and transported away (step 103 in FIG. 9). The transported rolled products 10 are arranged in any desired location (such as a cart).

Figure 12(f) shows the state in which the wound product 10 has been removed from the wound product transport shaft 57. From the state in Figure 12(f), the working device 55 is rotated in the direction in which the core preparation shaft 56 faces the stocker 50 (arrow g), thereby returning the position of the working device 55 to the position shown in Figure 10(a) when receiving the core 8 from the stocker 50. Thereafter, steps 100 to 103 in Figure 8 are repeated, so that new wound products 10 are sequentially conveyed out of the slitter 1.

As described above, according to this embodiment, by switching the arrangement of the working device 55, the supply of the core 8 to the winding device 20 and the discharge of the wound product 10 can be performed continuously. In addition, as described above, the winding onto the core 8 in the winding device 20 and the subsequent winding onto a new core 8 can also be performed continuously. Therefore, in this embodiment, it is possible to automate a series of processes such as the supply of the core 8 to the winding device 20, the winding onto the core 8 in the winding device 20, and the discharge of the wound product 10. Therefore, according to this embodiment, the manual work of the operator can be omitted in the series of processes of the slitter 1, and the decrease in the operating rate of the slitter 1 due to the manual work of the operator and the workload of the operator are eliminated.

The first embodiment of the present invention has been described above, but the second embodiment of the present invention will be described below. Figure 13 is a side view of the slitter 70 according to the second embodiment, Figure 14 is a front view, and Figure 15 is a plan view. Each figure is a schematic diagram showing the basic configuration, and the details of the mechanism are omitted as appropriate. The side view of Figure 13 illustrates the Y-axis direction of the slitter 70 (depth direction of the slitter 70), and is a view of the slitter 70 in Figure 15 seen from direction B. The front view of Figure 14 illustrates the X-axis direction of the slitter 70 (width direction of the slitter 70), and is a view of the slitter 70 in Figure 15 seen from direction C. The plan view of Figure 15 illustrates the X-axis and Y-axis directions of the slitter 70, and is a view of the slitter 70 in Figure 13 seen from direction A.

In Figure 13, the slitter 70 is disposed adjacent to the stocker 90. The stocker 90 is a supplier of the winding cores 8, which are placed on the inclined surface of the stocker 90. In Figure 15, the winding cores 8 are aligned in four rows starting from the lower end 91 of the inclined surface of the stocker 90. The winding cores 8 and their description shown in Figure 4, and the wound product 10 and their description shown in Figure 5 are the same as those in the first embodiment.

In Figure 13, the slitter 70 is equipped with a winding device 20 and a working device 80. The configuration of the winding device 20 shown in Figure 13 is the same as that of the winding device 20 shown in Figure 1. For ease of illustration, the terminal processing mechanism 30 of Figure 1 is omitted in Figure 13. The outline of the process from the wide web roll 3 to the completion of the wound product 10 described with reference to Figure 1 in the first embodiment is also the same in the second embodiment, and the description of the process will be omitted.

In Figure 15, the working device 80 is disposed adjacent to the stocker 90. The working device 80 receives the winding core 8 from the stocker 90 and passes it to the winding device 20, and receives the wound product 10 from the winding device 20. In Figure 13, the working device 80 includes a wound product transfer mechanism 71, which is a wound product transfer means, a winding core delivery mechanism 81, and a winding core preparation mechanism 84, which is a winding core preparation means. The wound product transfer mechanism 71 is a mechanism that transfers the wound product 10 received from the winding device 20 to the product removal device 88 (see Figures 15 and 27), but also serves as a transport mechanism that transports the wound product 10 to the working device 80.

In FIG. 13, the wound product transfer mechanism 71 includes a tray 72, a tray tilting mechanism 73, a tray support 74, and a tray lifting mechanism 75. Details of the operation of the wound product transfer mechanism 71 will be described later. The core transfer mechanism 81 includes a core receiving stand 82 and a stand lifting mechanism 83, and the core 8 received by the core receiving stand 82 is passed to the core preparation mechanism 84. The core preparation mechanism 84 includes an arm 85 that is a core gripping means, and the arm 85 grips the core 8 received from the core receiving stand 82. There are no particular limitations on the mechanisms of the tray tilting mechanism 73, the tray lifting mechanism 75, and the stand lifting mechanism 83, and in this embodiment, they are mechanisms in which a rod extends and retracts from a cylinder.

In Figure 14, the wound product transfer mechanism 71 and the core preparation mechanism 84 provided in the working device 80 are integrated with a frame 86 consisting of a pair of vertical frames 78 and a pair of horizontal frames 79. The frame 86 can move horizontally along the upper rail 76 and the lower rail 77 (arrows h, i), and in conjunction with this horizontal movement, the wound product transfer mechanism 71 and the core preparation mechanism 84 also move horizontally.

As described above, the configuration of the winding device 20 shown in FIG. 13 is the same as that of the winding device 20 of the first embodiment shown in FIG. 1, so the process from the end of winding described using FIG. 6 and FIG. 7 to the completion of the wound product 10 is also the same in the second embodiment. In the first embodiment, as shown in FIG. 3, the wide web roll 4 is slit into four narrow webs 5a to 5d, but in the second embodiment, as shown in FIG. 15, the wide web roll 4 is slit into eight narrow webs 5a to 5h, but it is sufficient to slit into two or more. In FIG. 15, the webs 5a, 5c, 5e, and 5g are wound on the upper winding device 20, and the webs 5b, 5d, 5f, and 5h are wound on the lower winding device 20.

In the second embodiment, the mechanism corresponding to the conveying mechanism 35 in FIG. 1 is also the wound product transfer mechanism 71 shown in FIG. 13, as described above. With reference to FIG. 16, an overview of the operation of the wound product transfer mechanism 71 will be described. FIG. 16(a) shows a state in which the wound product 10 is completed on the first winding shaft 22 and the winding of the web 5 onto a new core 8 attached to the second winding shaft 23 is started. In this state, the web 5 is wound onto the core 8 attached to the second winding shaft 23, and the wound product 10 is discharged from the winding device 20. This discharge is performed in a state in which the wound product 10 is placed on the receiving tray 72 constituting the wound product transfer mechanism 71 shown in FIG. 13. In the state of FIG. 16(a), the receiving tray 72 is raised together with the receiving tray support 74 (see FIG. 13) by the receiving tray lifting mechanism 75 (see FIG. 13) (arrow j).

In this state, by moving the tray 72 in the axial direction of the first winding shaft 22, the wound product 10 moves in the axial direction of the first winding shaft 22, and the wound product 10 is discharged from the winding device 20. In FIG. 14, the tray 72 moves by the horizontal movement of the frame 86 and the horizontal movement of the wound product transfer mechanism 71. When the wound product 10 is discharged, the grip of the core 8 on the first winding shaft 22 by the chuck mechanism is released. In FIG. 14, the support plate 26 corresponding to the first winding shaft 22 is retracted, and the first winding shaft 22 is in a cantilevered state. The retraction of the support plate 26 is performed after the tray 72 is raised. Since the tray 72 supports the load of the wound product 10 due to the rise of the tray 72, the wound product 10 can be easily removed by the horizontal movement of the frame 86, and bending of the first winding shaft 22 is also suppressed. 16B shows a state in which the web 5 is being wound around the second winding shaft 23. In this state, the web 5 is being wound around the second winding shaft 23, and a new winding core 8 is attached to the first winding shaft 22. The attachment of the new winding core 8 will be described later.

In the second embodiment, as in the first embodiment, while the web 5 is being wound onto the second winding shaft 23, the wound product 10 attached to the first winding shaft 22 is received by the wound product transfer mechanism 71 (wound product transfer means), and the winding core 8 received by the winding core preparation mechanism 84 (winding core preparation means) is passed to the first winding shaft 22.

The following describes the process from when the core 8 of the stocker 90 is supplied to the winding device 20 to when the wound product 10 completed by the winding device 20 is transported from the slitter 70. Figure 17 shows the state before the core 8 is supplied to the working device 80. In Figure 17, (a) is a plan view showing the main parts of the slitter 70, and (b) is a side view showing the main parts of the slitter 70 (the same applies to Figures 18 to 20). In the plan views of the slitter 70 from Figure 17 onwards, the arm 85 is omitted as appropriate for ease of illustration. In the state of Figure 17(a), winding of the web 5 onto the core 8 attached to the second winding shaft 23 has begun.

In Fig. 17(a), the winding cores 8 are placed on the stocker 90. As shown in Fig. 17(b), the movement of the winding cores 8 is restricted by a stopper 92 at the lower end 91 of the inclined surface of the stocker 90. As shown in Fig. 17(a), the winding cores 8 are aligned in four rows, and four winding cores 8 are transported sequentially from the front to the first winding shaft 22. The number of rows of winding cores 8 in the stocker 90 does not need to correspond to the number of cores to be mounted, and may be a short row.

Figure 18(a) shows a plan view of the slitter 70 with the four winding cores 8 at the top of the stocker 90 placed on the winding core receiving stand 82. By tilting the stopper 92 from the state shown in Figure 17(b), the restriction is released (arrow k), and the winding cores 8 are placed on the winding core receiving stand 82 as shown in Figure 18(b). In the state shown in Figure 18(b), the movement of the winding cores 8 on the stocker 90 is again restricted by the stopper 92.

Figure 19(a) shows a plan view of the slitter 70 with the cores 8 on the core receiving stand 82 aligned at a predetermined interval by the alignment device. The alignment device is a mechanism similar to the transport mechanism 35 (see Figure 1) including the transport plate 36. From this state, as shown in Figure 19(b), the core receiving stand 82 is raised by the receiving stand lifting mechanism 83, and the cores 8 are raised to the position of the arm 85. When the arm 85 is slid from this state (arrow m), the core 8 is gripped by the arm 85. After the arm 85 is gripped, the core receiving stand 82 is lowered to its original position by the receiving stand lifting mechanism 83. The arm 85 gripping the core 8 moves toward the receiving tray 72 (arrow l).

Figure 20 shows a plan view of the slitter 70 just before the winding core 8 is attached to the first winding shaft 22. As shown in Figure 20 (b), the arm 85 holds the winding core 8, and in this state, as shown in Figure 20 (a), the winding core 8 held by the arm 85 moves onto the receiving tray 72. In the state shown in Figure 20 (a), the central axis of the first winding shaft 22 and the central axis of the winding core 8 coincide. From this state, the arm 85 holding the winding core 8 moves toward the first winding shaft 22 (arrow n). This movement is due to the movement of the frame 86 shown in Figure 14, and the receiving tray 72 also moves together with the movement of the arm 85. During this movement, as in the first embodiment, the double-sided tape 11 is attached to the winding core 8 by the adhesive attachment device 60 (not shown in Figure 20) (see Figure 4). For example, if the guide rollers 6 and the like (see FIG. 1) are treated to be non-adhesive (release), the adhesive can be applied to the wide web 4 before slitting. In this case, it is not necessary to directly apply the double-sided tape 11 to the core 8.

Figure 21 shows a plan view of the slitter 70 with the core 8 attached to the first winding shaft 22. From this state, the arm 85 releases the grip on the core 8, and the arm 85 retracts together with the receiving tray 72 to the original position (arrow o). Figure 22 shows a plan view of the slitter 70 with the arm 85 and the receiving tray 72 retracted. In this state, the core 8 is held on the first winding shaft 22, and the first winding shaft 22 is supported by the support plate 26 and is in a double-supported state. Until the core 8 is attached to the first winding shaft 22, the second winding shaft 23, on which the core 8 is already attached, is rotated to wind the web 5 onto the core 8 attached to the second winding shaft 23.

Figure 23(a) shows a plan view of the slitter 70 when winding of the web 5 onto the winding core 8 attached to the second winding shaft 23 is complete. Figure 23(b) shows the main part of the side of the winding device 20 at this time. In the state of Figure 23(b), the web 5 has been fully wound onto the winding core 8 attached to the second winding shaft 23.

Figure 24 shows a plan view of the slitter 70 in a state where the turret 21 has been rotated from the state shown in Figure 23 and the wound product 10 has been completed. The steps during this period are as described using Figures 6 and 7. As shown in Figure 24(a), the receiving tray 72 has moved to the position of the second winding shaft 23. In Figure 24(b), the receiving tray 72 below the winding shaft 23 is raised (arrow r) so that the receiving tray 72 receives the wound product 10 and the weight of the wound product is not applied to the second winding shaft 23. In this state, in Figure 24(a), the support plate 26 that supported the second winding shaft 23 is retracted (arrow p) so that the second winding shaft 23 is in a cantilevered state. Next, the receiving tray 72 receiving the wound product 10 is transferred to the product removal device 88 side (arrow q).

Figure 25 shows a plan view of the slitter 70 immediately before the rolled product 10 is delivered to the product removal table 89 of the product removal device 88. By tilting the receiving tray 72 from the state shown in Figure 25, the rolled product 10 on the receiving tray 72 is delivered to the product removal table 89. In the state shown in Figure 25, winding of the web 5 onto the core 8 attached to the first winding shaft 22 has begun. Figure 26 shows the state in which the rolled product 10 has been delivered to the product removal table 89. When the rolled product 10 is further delivered from the state shown in Figure 26 to the product receiving cart 95 (see Figure 27), the slitter 70 returns to the state shown in Figure 17(a). Thereafter, by repeating the steps described using Figures 17 to 26, new rolled products 10 are sequentially conveyed out of the slitter 70.

The unloading of the rolled product 10 will be described in more detail with reference to Figure 27. Figure 27 is a side view showing the main parts of the working device 80. Figure 26 illustrates only the mechanism related to the unloading of the rolled product 10, and other mechanisms are omitted. Adjacent to the working device 80 is a product receiving cart 95 that receives the rolled product 10 unloaded from the product unloading device 88. The product receiving cart 95 is one example, and other structures may be used as long as it is capable of receiving the product.

By tilting the tray 72 by the tray tilting mechanism 73 (arrow s), the rolled product 10 is delivered onto a product removal table 89 provided in the product removal device 88. Furthermore, by tilting the product removal table 89 by a tilting mechanism (not shown) such as a cylinder mechanism (arrow u), the rolled product 10 is conveyed onto a product receiving table 96 provided in a product receiving cart 95. The upper and lower product removal tables 89 of the product removal device 88 can be raised and lowered by a lift mechanism (not shown), and the rolled product 10 on the lower product removal table 89 can also be conveyed onto the product receiving table 96.

The second embodiment has been described above. According to the second embodiment, as in the first embodiment, the supply of the core 8 to the winding device 20 and the discharge of the wound product 10 can be continuously performed by switching the arrangement of the working device 80. Also, as described above, the winding onto the core 8 in the winding device 20 and the subsequent winding onto a new core 8 can be continuously performed. Therefore, in this embodiment, it is possible to automate a series of processes, such as the supply of the core 8 to the winding device 20, the winding onto the core 8 in the winding device 20, and the discharge of the wound product 10. Therefore, according to the second embodiment, as in the first embodiment, the manual work of the operator can be omitted in the series of processes of the slitter 70, and the reduction in the operating rate of the slitter 70 due to the manual work of the operator and the workload of the operator are eliminated.

Although the above describes the embodiments of the present invention, these are merely examples and may be modified as appropriate. For example, the stockers 50, 90 that are the supply sources of the cores 8 are not limited to the structures exemplified in each embodiment as long as they have a structure that supplies the cores 8 to the core preparation means 56, 84. Furthermore, the product removal devices 65, 88 are not limited to the structures exemplified in each embodiment as long as they can remove the rolled product 10 from the rolled product transfer means 57, 71. Furthermore, the terminal processing mechanism 30, the transport mechanism 35, the cross-cut mechanism 40 shown in FIG. 1, and the adhesive application device 60 shown in FIG. 2 may have other configurations as long as they can achieve the same functions.

Reference Signs List 1, 70 Slitter 2 Wide web roll 4 Wide web 5 Narrow web 8 Winding core 10 Winding product 11 Double-sided adhesive tape 12 Label 20 Winding device 22 First winding shaft 23 Second winding shaft 30 End processing mechanism 35 Transport mechanism 36 Transport plate 50, 90 Stocker (supply source of winding core)
55, 80 Working device 56 Winding core preparation shaft (winding core preparation means)
57 Rolled product transport shaft (rolled product transport means)
58 Rotating shaft 60 Adhesive application device 65, 88 Product removal device 71 Rolled product transfer mechanism (rolled product transfer means)
72 Receiving tray 82 Winding core receiving stand 84 Winding core preparation mechanism (winding core preparation means)
89 Product removal stand

Claims (5)

a winding device that winds the narrowly slit web around a core attached to a winding shaft to produce a wound product;
a product removal device for removing the rolled product;
a working device that receives the winding core from a supplier, delivers the winding core to the winding device, and receives the wound product from the winding device;
a conveying plate that moves along a guide shaft and is rotatably movable between a state in which a leading end portion of the conveying plate has moved to the position of an end face of the winding core and a state in which the leading end portion of the conveying plate is in a retracted position away from the end face of the winding core;
an adhesive material application device that applies an adhesive material to the winding core on a winding core preparation means described later when the winding core is fed to the winding shaft;
In order to insert the multiple winding cores received by a winding core preparation means described later into the winding shaft at intervals and hold them, the transport plate moves along the guide shaft with its tip portion moved to the position of an end face of one of the winding cores received by the winding core preparation means described later, and sends out the one of the winding cores to the winding shaft, moves along the guide shaft with its tip portion rotated and moved away from the end face of the one of the winding cores to a retracted position, and moves along the guide shaft with its tip portion rotated and moved to the position of the end face of a new one of the winding cores, and sends out the new one of the winding cores to the winding shaft, thereby sending out the winding cores one by one to the winding shaft,
the adhesive application device applies adhesive to the winding cores one by one on a winding core preparation means described later when the winding cores are fed one by one to the winding shaft;
the working device includes a core preparation means for receiving the core from a core supply source, and a wound product transfer means for transferring the wound product received from the winding device to the product removal device,
the arrangement of the working device can be switched among an arrangement in which the core preparation means can receive the core from a core supply source, an arrangement in which the wound product transfer means can receive the wound product, an arrangement in which the core preparation means can transfer the received core to the winding device, and an arrangement in which the wound product transferred by the wound product transfer means can be transported by the product removal device,
By switching the position of the working device, the supply of the winding core to the winding device and the removal of the wound product can be performed continuously,
The winding device is a turret type having a pair of winding shafts, and while the web is being wound around one of the winding shafts, the wound product attached to the other winding shaft is received by the wound product transfer means, and the winding core received by the winding core preparation means is transferred to the other winding shaft, so that preparation for a new winding operation proceeds without interrupting the winding operation,
A slitter characterized in that, by the adhesive being attached to the winding core by the adhesive application device, the winding of the web onto the winding core in the other winding shaft is completed, and after the web is cut, the web can be wound up on the one winding shaft as is. The slitter according to claim 1, wherein, in a plan view of the slitter from above, the working device can be rotated around a pivot axis, and the position of the working device is changed by the rotation and movement of the working device in a planar direction. The slitter according to claim 1, wherein the core preparation means is a shaft into which the core can be inserted. The slitter according to claim 1, wherein the rolled product transport means is a shaft into which the rolled product can be inserted. 5. The slitter according to claim 1, further comprising an end processing mechanism for attaching a label to an end of a fully wound product.

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