JPS6222895B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a web winding device, and by using a unique mechanism for adjusting the installation of a tape pasting device and a core injector, it is possible to create a cradle device that also serves as a safety fence, thereby improving safety. It is an object of the present invention to provide an improved and more efficient web winding device.

Now, an embodiment of the present invention relating to a web winding machine (hereinafter referred to as a winder) used for paper winding roll production in paper manufacturing companies will be explained with reference to FIGS. 1 to 9. The winding drum is made of metal rolls and is driven by an electric motor. Note that 1 is a first winding drum, and 2 is a second winding drum. 3 is a web which is wound around the core 4 on winding drums 1 and 2, and when the winder is stopped after winding a predetermined length, it is taken out from the winder as a winding roll and sent to the next process. It will be done. Further, 5 is a winding roll.

A rider roll 6 is used for the purpose of pressurizing the take-up roll 5 in order to generate the necessary contact pressure between the take-up roll 5 and the take-up drums 1 and 2. Further, 7 is a core chuck, which can be moved up and down along a guide rail attached to the winder frame 8 in response to changes in the diameter of the winding roll, and the core is held between the core chucks on both the operating side and the driving side. The winding roll 5 is restricted from moving in the width direction on the winding drums 1 and 2.

Reference numeral 9 denotes a roll ejector, which is provided for the purpose of pushing out the winding roll 5 from above the winding drums 1 and 2. The take-up roll 5 is pushed out by the roll ejector 9 swinging around the bearings at both ends of the first take-up drum 1 under the force generated by the hydraulic cylinder 10 or the like. The roll ejector 9 in FIG. 1 has the function of instantaneously cutting the entire width of the web 3 during extrusion of the take-up roll, and has a built-in suction function that removes the tip of the web 3 from the unwinder to the take-up drums 1 and 2. It has the function of being adsorbed and held in a box.

Reference numeral 11 denotes a cradle, which is kept in the position shown in Fig. 1 by a hydraulic cylinder 12 during web winding. By controlling the pressure oil supplied to the hydraulic cylinder 12 as required, the second winding drum 2 can be swung around the bearings at both ends and lowered. Also Cradle 1
1 also functions as a safety fence to protect the operator from the dangers of the winding drum, winding roll, rider roll, etc. which are rotating at high speed.

13 is a tape pasting device, and a guide rail 14 is fixed to the winder frame 8 on both the operating side and the driving side.
, and is suspended by an electric hoist 15 so that it can be moved up and down. Also, during the winding operation by the tape applying device 13, over the entire length of the core 16 used for the next winding roll,
Double-sided adhesive tape can be applied to form an adhesive surface. Note that detailed movements will be described later.

17 is a core injector, both ends of which are connected to a wire rope 18 using rotatable joints. The other end of the wire rope 18 is a rope drum 19
As the rope drum 19 rotates, the core injector 17 is guided by a guide rail 20 supported from the inner surface of the winder frame 8, and can be raised and lowered diagonally up and down. .

This completes the general description of the embodiment devices constituting the main part of the present invention, and then how each device performs related operations will be described. First, FIG. 1 shows a state in which a web is wound around a core in a winder and the winding diameter is increased. and winding drum 1,
2. The take-up roll 5 and the rider roll 6 are rotating at high speed. Further, the roll ejector 9 is stationary at the most retracted position.

On the other hand, the cradle 11 is at the upper limit position as shown, and the tape applying device 13 is at the lower limit position. Further, the core injector 17 is in the illustrated state at the upper limit position. When the winder operator is in the above state, the winder operator places the core needed to produce the next take-up roll onto the core receiver (21 in FIG. 2) that is swingably provided at the top of the tape applicator 13. Arrange.

Next, a double-sided adhesive tape is applied onto the core, and the details of the tape application process will be explained with reference to FIG. Figure 6 shows a part of the drive side of the tape applicator, and 8
is the drive side winder frame. Reference numeral 14 denotes a drive-side guide rail, which serves as a guide when the entire tape application device is moved up and down. The winder frame 8 and guide rail 14 are located symmetrically with respect to the center in the width direction of the winder.

A beam 22 has a box-shaped cross section, and is slidably engaged with the guide rail 14 via a guide 23 containing a linear motion ball bearing at two locations, one on the operation side and the other on the drive side. beam 22
A geared motor 24 is installed at the drive side end of the motor. A roller chain sprocket 25 is attached to the output shaft of the geared motor 24. Further, an idle sprocket having the same dimensions as the roller chain sprocket 25 is rotatably installed at the operation side end of the beam 22 and has a function of reversing the roller chain 26, but is not shown.

Reference numeral 27 denotes a tape applicator, and the tape applicator 27 swings and swings onto a guide rail 30 having a circular cross section supported by a number of screw shafts 29 along the beam 22 via a guide 28 with a built-in slide bearing. Slidably supported. Both ends of the loop-shaped roller chain 26 are connected to the tape applicator 2.
It is connected to the bottom of 7. Therefore, when the roller chain 26 is driven by the geared motor 24, the tape applicator 27 moves forward and backward along the guide rail 30.

FIG. 6 shows a state in which the tape applicator 27 is progressing from the operation side to the drive side. This will be referred to as forward movement, and moving in the opposite direction will be distinguished from backward movement in the following explanation. While the tape applicator 27 is moving forward, a roller 31 built into the tape applicator 27 comes into contact with the core 16, and the roller 31 presses the double-sided adhesive tape onto the core. As a result, the double-sided adhesive layer is adhered onto the core, and at the same time, the separator, which is a separating paper of the double-sided adhesive tape, is peeled off from the adhesive layer, and this separator is automatically wound onto the separator take-up reel 32.

While the tape applicator 27 continues to advance, the double-sided adhesive tape is drawn out from the rewind reel 33. In this tape applicator 27, the pulling out of a new double-sided adhesive tape, the winding up of a separator, and the rotational power of a plurality of tape guide rollers are all obtained by the rotation of the roller 31 in contact with the core 16, and the power is transmitted to gears, etc. The tape applicator has a mechanism for distributing power to the necessary points via parts, but since tape applicators with this mechanism are currently operating without problems, detailed explanation will be omitted.

A cam follower 34 is attached to the lower part of the tape applicator 27, and a rail 35 is attached to the side of the beam 22 as a part related to this cam follower.
The drive end thereof is connected to and attached to the air cylinder 36 via a rotatable joint. The rail 35 is made of one piece for the movable range of the tape applicator 27, is slidably supported on the side surface of the beam 22 by a plurality of rail guides 37, and is further connected to a plurality of links 38. There is.

Now, from the state shown in FIG. 6, if the rod of the air cylinder 36 is retracted, the link 38 and the rail 35
The connecting pin portion moves in an arc shape, and the rail can be moved upward from the position shown in the figure. As shown in the cross-sectional view of FIG. 6, by moving the rail in a direction that creates a gap between the rail 35 and the cam follower 34, the tape applicator 27 swings around the guide rail 30 due to its own weight, and the core 16 and The rollers 31 are brought into contact.

When the tape applicator 27 advances from the standby position at the operation side end (not shown) and the roller 31 passes the operation side end of the core 16, the rail 35
When the roller 31 is lowered as shown in FIG. 6, the roller 31 comes into contact with the core 16, and an adhesive layer is formed on the core. Furthermore, when the roller 31 of the tape applicator approaches the driving side end of the core 16, if the rail 35 is raised as shown in FIG. only broken.

FIG. 7 shows a state in which the adhesive layer has been formed on the core 16 and the tape applicator 27 has reached its forward limit. Also, the core 16 and tape applicator 2
If the tape applicator 27 is moved back to the standby position on the operating side while maintaining the relative positions of the tapes 7 and 7 as shown in FIG. The taping process is completed.

After completing the formation of the adhesive layer on the core 16 through the steps described above, the tape applicator 13 is raised to the upper limit position as shown in FIG. Wait for the processing to stop.

Next, when the winder stops after winding a predetermined winding length, the operator presses an operation switch to start wholesale replacement. By this operation, the rider roll 6 first rises to the upper limit position, and at the same time, the core chuck 7 is released from the core end face and further rises to the upper limit position.
Meanwhile, the core on the tape applicator 13 is
As shown in the figure, by swinging the core receiver 21 using an air cylinder 39 and a roller chain 40, it is transferred onto the core injector 17. During the transfer process, the adhesive surface on the core 16 comes into contact with the core receiver 21 and the core injector 17, but the occurrence of adhesive action is prevented by lining with Teflon resin or the like.

A limit switch detects that the rider roll 6 and the core chuck 7 have reached their upper limit positions, and in response to that signal, the roll ejector 9 automatically starts moving forward to push the take-up roll 5 onto the cradle 11. During extrusion of the take-up roll, just before the center of the take-up roll 5 passes over the center of the second take-up drum 2,
A web cutting knife built into the roll ejector 9 is automatically projected to instantly cut the entire width of the web. After cutting the web, the leading end of the web is suctioned and held over the entire width by suction holes provided in the width direction at the bottom of the roll ejector 9.

When the take-up roll 5 is transferred onto the cradle 11, the hydraulic cylinder 12 is automatically controlled and the cradle 11 starts to descend. Simultaneously with this lowering of the cradle 11, the roll ejector 9 begins a backward movement and automatically interrupts the backward movement at the position shown in FIG. Further, as shown in FIG. 3, when the cradle is lowered to a position where the take-up roll 5 does not interfere with the lowering of the core injector 17, it is detected by means such as a photoelectric switch, and the core injector 17 is lowered automatically. let

FIG. 8 shows the elevating drive system of the core injector 17. In the figure, 41 is a geared motor with a brake, and 42 is a coupling. The coupling 42 connects the geared motor with a brake 41 and the cross shaft 43. A rolling bearing 48 rotatably supports the cross shaft 43 on the upper part of the winder frame 8.

Although Fig. 8 shows the drive side part, it is omitted because it is symmetrical with respect to the center line in the width direction of the winder, except that the geared motor 41 with brake is not installed on the operating side. . Further, by rotating the geared motor 41 with a brake in forward and reverse directions, the length of the wire rope 18 paid out from the rope drum 19 changes, and the core injector 17 is guided by the guide rail 20 and can move up and down.

FIG. 9 shows a position where the core injector 17 has descended and approached the second winding drum 2, and the guide rail 20 is
The figure shows a state in which the guide 44 rotates about a shaft built into the guide 44 that is slidably engaged with the guide 44 .
A cam 45 is fixed to the drive side end of the core injector, and a cam follower 47 that contacts the cam 45 is provided on a bracket 46 attached to the inner surface of the drive side winder frame 8.

When the cam 45 hits the cam follower 47 and the core injector 17 is further lowered, the core injector 1
7 will rotate. As the rotation of the core injector 17 progresses, the core 16 rolls out from the core injector 17 and falls into the pocket between the winding drums so that the adhesive layer a on the core 16 is positioned downward as shown in FIG. Press down on web 3. The position of the adhesive layer on the core when it falls between the drums can be determined by adjusting the distance when the core rolls from the taping device to the core injector and the position relative to the drum pocket when the core injector is at the lower limit position. 9 can be placed in the position shown in Figure 9.

The position of the roll ejector 9 immediately after the core falls is the position shown in FIG. 3, but immediately after the core presses the web 3 onto the winding drum 1, the roll ejector 9 automatically moves as shown in FIG. Start the backward movement again,
Automatically stops at the reverse limit position.

Further, in parallel with the start of the roll ejector 9 retreating again, the core chuck 7 and the rider roll 6 automatically start lowering, and the core injector 17 automatically starts moving up. Further, after the take-up roll is completely transferred from the cradle 11, the cradle automatically starts to rise. FIG. 5 shows a state in which winding has started again. After this, the taping device 13 is lowered and the operator prepares a new core.

The present invention is configured as described in detail above, and it is normal to detect the movement of each device having the structure of the present invention using a limit switch, a pressure switch, a photoelectric switch, etc., and to start and stop each device in sequence. The explanation is omitted because it can be easily achieved by applying the control technology of start,
The greatest effect of the present invention is that once a command is given by an operating switch, all movements of each device are automatically carried out, and a new core is brought onto the winding drum, making it possible to restart winding.

In addition, according to the present invention, since the complicated movements of each operation proceed automatically without interruption, the operator directly arranges the cores on the take-up drum, cuts the web, and cores the web using adhesive tape. Compared to the method of gluing the web on top, the winder stop time is greatly reduced, and as a result, the winder's take-up roll production capacity is increased. Finished width 8000mm as an example
Although the conventional winder requires 100 seconds to stop for wholesale replacement, the winder of the present invention takes about 40 seconds.

In addition, in the winder of the present invention, the cradle for unloading the winding roll completely protects the operator from dangers caused by the rotating body during winder operation, improving safety, and during each operation of the wholesale change process. Since the operator only needs to carry out monitoring work at the control desk, there is almost no need for in-machine work like that done with conventional winders, greatly improving overall safety. In addition, with conventional winders, for example, a winder with a finished width of 8000 mm required 4 to 5 operators to perform wholesale replacement work that is repeated once every few minutes, but with the winder of the present invention, one operator is sufficient. .

Further, in the present invention, all the devices constituting the automatic wholesale replacement system are supported by the winder frame. The conventional ordinary winder and the automatic replaceable winder that have been used in the past are both more complex and require a larger installation space than the winder of the present invention because their devices are installed on the floor of the winder section. Although this is widely known in the industry, the winder of the present invention improves on this point.

[Brief explanation of the drawing]

1, 2, 3, 4, and 5 are side views of a web winding device showing an embodiment of the present invention in different operating states, and FIG. 6A and FIG. A is a detailed view of the tape applying device in FIG. 1 in different operating states, FIGS. 6B and 7B are front views of FIGS. 6A and 7A, respectively, and FIG. 8A is a core injector. 8B is a front view of the same, and FIGS. 9A, 9B, and 9C are detailed views of the main parts in FIG. 1 in different operating states. Explanation of the main parts of the figure, 1, 2... Winding drum,
3...web, 4...core, 5...take-up roll,
6... Rider roll, 7... Core check, 8...
...winder frame, 9...roll ejector, 1
1... Cradle, 13... Taping device, 1
5... Hoist, 16... Core, 17... Core injector, 21... Core receiver, 27... Tape applicator, 32... Winding reel, 33... Rewinding reel.

Claims (1)

[Claims] 1. In a shaftless winder that has a cradle device that serves both for unloading the take-up roll and as a safety fence to protect the operator from the rotating body during operation, double-sided adhesive tape is used on the core at a position close to the floor to attach the adhesive surface to the core. a device for hoisting the tape applying device to an upper position where it will not be a hindrance when removing the take-up roll from the winder;
A core injector that receives the core with an adhesive surface formed thereon from the tape pasting device at an upper position, a core injector lifting device that lowers the core injector that has received the core upward to a winding drum, and a core injector that rotates the core injector near the lower limit position to remove the core. It has a built-in device that feeds the web between the drums, a web cutting knife, a roll ejector that also has a web suction function, a core chuck, a rider roll, etc., and it is a device that automatically and sequentially controls the movement of each of these devices. A web winding device characterized by: