JPH0432383Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a winding device that can safely and reliably unload winding rolls of strips such as paper webs.

[Prior Art] For example, a wide web of paper is cut in the width direction by a slitter, and wound around cores arranged in a staggered manner on both sides of a winding drum.

In recent years, as printing technology has become faster, the winding diameter of the winding roll has tended to increase, and the weight of the winding roll has also increased.

Therefore, great care must be taken when removing the heavy winding roll from the winding device and placing it on the table.

Conventionally, as shown in FIG. 7, when the winding of the winding roll a is completed, a lifter b below the winding roll a rises to place the winding roll a with the stopper c protruding. Next, it returns to a position at the same height as the table d, the stopper c is retracted, and the take-up roll a rolls on the table d and is discharged.

[Problems to be solved by the invention] However, the winding roll a that winds up thick and thin paper has a winding diameter that is between the winding rolls a or between the winding rolls a.
With the lifter b, which rises to a constant height over the entire width, the thin part of the paper was loose and could not be lifted by the lifter b, making it difficult to remove it from the winder.

Furthermore, since the lifter b is raised and lowered by the fluid pressure cylinder f, it does not necessarily have a stable structure;
When the winding diameter of the winding roll a becomes uneven as described above, an uneven load is applied to the lifter b, which causes problems in terms of safety and mechanical stability.

Furthermore, the lifter b has approximately the same length as the winding drum e, and even when there is only one winding roll a, the entire lifter must be raised and lowered.

[Means for solving the problems] The present invention was made with the aim of solving the problems of the conventional lifter described above and making it possible to unwind each winding roll stably and reliably. At least one pair of support frames are provided on at least one side of the winding drum, each of which is tiltable with the winding drum side as a support point, and a tilting hydraulic actuator is connected to each of the support frames. The support frame is tiltable, and each support frame is provided with a movable roll support running body, and each roll support running body is moved around a roller on the opposite side of the winding drum from each roll support point at a roll unwinding position. This invention relates to a winding device characterized in that it is configured to be able to rotate within a vertical plane.

[Operation] Each support frame that supports the take-up roll is tilted to a required angle by the tilting fluid pressure actuator, so that the same number of support frame pairs as the number of take-up rolls are tilted stably, and the take-up roll is tilted to a desired angle. At the moment the roll lands on the table, the roll support traveling body rotates around the roller on the side opposite to the winding drum from the roll support point at the roll unloading position, so the impact at the time of landing is absorbed and the winding The unloading of the unloading roll is carried out safely and reliably.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

Figures 1 to 6 show an embodiment of the present invention,
This is an example in which unloading devices 2 for the winding roll 1 are arranged in a staggered manner on both sides of the winding drum. That is, a pair of support frames 4,
4' can be rotated parallel to each other in a vertical plane.
5', and the respective support frames 4,
The piston rods 7, 7' of the hydraulic cylinders 6, 6' disposed below the support frames 4,
Pins 8, 8' are connected to the lower side of the piston rods 4', so that the support frames 4, 4' can be rotated by protruding and retracting the piston rods 7, 7'.

Arc-shaped gears 9, 9' are provided at the pivot points of the pins 5, 5' of each of the support frames 4, 4', with the pins 5, 5' as centers, and rotary rotation angle detectors 10,
Pinion 1 fixed to detection shaft 11, 11' of 10'
2 and 12' are meshed with each of the gears 9 and 9'.

A take-up roll support traveling body 13, 13' is disposed on each of the support frames 4, 4' so as to be movable over substantially the entire length in the longitudinal direction. The winding roll supporting traveling body 1
3, 13' are movable on the respective support frames 4, 4' and have a chuck device for holding the winding roll 1.

Each of the winding roll supporting traveling bodies 13, 13' is
A pair of left and right rollers 15, 15 and 16, 16 are provided at both ends of shafts 17, 18, respectively, before and after the roll support point 14, and guide rails 19, 19, 19' of each of the support frames 4, 4' are provided. , 19' so as to be movable by a drive motor or hydraulic cylinder (not shown), and each guide rail 1
9, 19, 19', a pair of left and right rollers 20, 21, 21 in the front and rear so as to be in contact with the lower surface side of 19'.
are rotatably attached to both ends of shafts 22 and 23. The front rollers 20, 20, that is, the rollers 20, 20 located on the winding drum side with respect to each roll support point 14, are the rear rollers 21, 21, that is, the rollers located on the opposite side of the winding drum with respect to each roll support point 14. 21, 21, the rolling surface is made narrower than the rollers 21, 21, and the lower surface side of each of the guide rails 19, 19, 19', 19' at the take-up roll unloading position A comes into contact with each of the front rollers 20, 20. Concave grooves 24, 24 are provided in each portion with approximately the same width, and each concave groove 2 is provided with approximately the same width.
4 and 24 so that the respective rollers 20 and 20 can be fitted into them. the lower rear roller 21;
21 is located on the opposite side of the winding drum from the upper rear rollers 16, 16.

Further, a take-up diameter detector 27 is provided in the longitudinal direction of the side surface of one of the support frames 4 and 4' for detecting the roll diameter of the take-up roll 1 in a non-contact manner using a magnetic or optical sensor. is provided.

In the figure, reference numeral 25 indicates a table installed below the discharge side of the take-up roll 1 of the support frames 4, 4', and reference numeral 26 indicates a stopper.

Next, a control circuit for determining the rotation angle of the support frames 4, 4' from the detection value of the winding roll diameter by the winding diameter detector 27 will be explained with reference to FIG.

The winding diameter detection signal from the winding diameter detector 27 is sent to the support frame inclination angle calculator 28 to calculate the inclination angle of the support frames 4, 4' from the winding diameter of the winding roll 1. The signal P _A is sent to the comparison calculation controller 29.

Sending the detected angle signals P ₁ and P ₂ from the two rotation angle detectors 10 and 10' to the comparison calculation controller 17, respectively, and comparing them with the tilt angle signal P _A ,
When P ₁ <P _A and P ₂ <P _A , the solenoid valves 30 and 30' remain switched to the x and z sides, respectively, so that pressure fluid is supplied to the rod side of each of the fluid pressure cylinders 6 and 6'. shall be. Support frame 4, 4'
During tilting, if the difference between P ₁ and P ₂ is within the predetermined allowable angle difference ΔP, the solenoid valves 30 and 30' are held as they are, and if the difference between P ₁ and P ₂ is larger than ΔP, Set the larger solenoid valve of P ₁ and P ₂ to neutral and hold the other solenoid valve as it is. When the difference between P ₁ and P ₂ is within ΔP, the one solenoid valve changes from neutral to x or z. Allows switching to the side.

When P ₁ or P ₂ becomes equal to P _A , each solenoid valve 30, 30' is respectively switched to a neutral position.

With the above configuration, when the winding is finished, the winding diameter of the winding roll 1 is detected by the winding diameter detector 27.
The winding diameter detection signal is sent to the support frame inclination angle calculator 28, and the support frame is determined from the relationship graph between the winding diameter and the inclination angle, which is input and set in advance to the inclination angle calculator 28. The tilt angles of 4 and 4' are calculated, and the tilt angle signal P _A is sent to the comparison calculation controller 29.

When the winding roll 1 has not reached the unwinding position A, either automatically or manually at the same time as the winding operation is completed, each winding roll supporting traveling body 13, 13' continues to hold the winding roll 1. The solenoid valves 30, 30' are moved to the unloading position A, and each solenoid valve 30, 30'
are switched from the neutral position to the x and z sides, respectively, pressure fluid is supplied to the rod side of each hydraulic cylinder 6, 6', each piston rod 7, 7' is retracted, and each support frame 4, 4' is pinned. 5 and 5' are respectively tilted in the downward direction.

The tilting angle of each of the support frames 4, 4' is determined by the pinions 12, 12' of the rotation angle detectors 10, 10' by arc-shaped gears 9, 9' of the pin pivot parts of each of the support frames 4, 4'. They are rotated and detected, and the detected angle signals P ₁ and P ₂ are sent to the comparison calculation controller 29, respectively.

While P ₁ and P ₂ are smaller than P _A , this indicates that each support frame 4, 4' is not tilted to the target angle, so each solenoid valve 30, 3
0' remains switched to the x or z side.

At this time, it is necessary to synchronize the tilting of each support frame 4 _, 4' to prevent the supported take-up roll ₁ from tilting. If the value becomes larger than the allowable angle difference ΔP, the solenoid valve 30 or 30' on the side of the support frame 4 or 4' with the larger tilt angle is temporarily switched to the neutral position. The other solenoid valves 30 or 30' are held as they are on the x or z side, and when the difference between P ₁ and P ₂ becomes smaller than ΔP, the solenoid valves 30 or 30' that have been temporarily switched to neutral are is x or z
side, and the retraction of the piston rods 7, 7', that is, the tilting of the respective support frames 4, 4', continues.

When P ₁ or P ₂ becomes equal to P _A , each solenoid valve 30, 30' is switched to neutral, and the tilting of each support frame 4, 4' is stopped, and at the same time, the take-up roll 1 is moved to the table 25. It is grounded above. At this time, since the take-up roll 1 is lowered at a predetermined speed, when it lands on the table 25,
The take-up roll 1 receives a reaction force from the table 25,
Loads are applied to the chuck, guide rails 19, 19', each roller 20, 20, 21, 21, etc. on the bottom side, and there is a risk of damage or deformation. 20,2
0 is the concave groove 24, 2 on the lower surface of the rail 19, 19'.
4, the reaction force when the winding roll 1 lands on the table 25 is caused by the rollers 20, 20 fitting into the respective concave grooves 24, 24, and the lower surface of the guide rails 19, 19'. Each winding roll supporting traveling body 1 is centered around each rear roller 21, 21 on the side.
3 and 13' are rotated.

Take-up roll 1 can be removed by removing the chucks at both ends.
It becomes possible to unload.

After the winding roll 1 has been unloaded, the solenoid valves 30, 30' are automatically or manually switched to the w and y sides, and the piston rods 7, 30' are switched to the w and y sides.
7' is made to protrude, and each support frame 4, 4' is returned to the horizontal position.

It should be noted that the winding device of the present invention is not limited to the above-mentioned embodiments, and that other means may be used for the tilting means of the support frame and the means for moving the roll support traveling body, and that other means than the paper web may be used. Of course, various modifications can be made without departing from the gist of the present invention, such as being applicable to winding up and unloading of a strip.

[Effects of the invention] As described above, according to the winding device of the invention,
A support frame pair is disposed on the side of the winding drum so as to be tiltable by a tilting hydraulic cylinder, and a roll support traveling body is disposed on the support frame so as to be rotatable at the roll unloading position. The pair can be tilted stably, and the impact when the take-up roll lands can be alleviated and absorbed, and the take-up roll can be safely and reliably unloaded.Furthermore, the support frame that supports the take-up roll Since only the pair is tilted, various excellent effects can be achieved, such as a significant reduction in power energy compared to the conventional full-width lift.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one embodiment of the device of the present invention, Fig. 2 is a detailed explanatory diagram of the take-up roll supporting traveling body shown in Fig. 1, and Fig. 3 is a view taken in the - direction arrow of Fig. 2. ,
4 is a view taken in the - direction arrow of FIG. 2, FIG. 5 is an explanatory diagram when the lower and rear rollers pass through the concave groove in FIG. 2, and FIG. 6 is a control circuit diagram of the device shown in FIG. 1;
FIG. 7 is a diagram showing an example of a conventional unloading device. 1 is a take-up roll, 2 is an unloading device, 4, 4' is a support frame, 6, 6' is a fluid pressure cylinder, 13,
13' is a winding roll supporting traveling body, 15, 16, 2
0 and 21 are rollers, 19 and 19' are guide rails,
24 is a concave groove, and 25 is a table.

Claims (1)

[Scope of utility model registration request] At least a pair of support frames are provided on at least one side of the winding drum, each of which is tiltable with the winding drum side as a support point, and a tilting hydraulic actuator is connected to each of the support frames. is tiltable, each of the support frames is provided with a movable roll support running body, and each of the roll support running bodies is vertically disposed about the roller on the side opposite to the winding drum from each roll support point at the roll unloading position. A winding device characterized in that it is configured to be able to rotate within a plane.