JPH0729711B2 - Slitter-winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention divides a wide strip-shaped sheet into a plurality of narrow sheets and alternately distributes them to the left and right, and the distributed narrow sheet is driven mainly. The present invention relates to a slitter winder of a type wound around a shaft or a winding core externally mounted on a winding shaft.

(Prior Art) A bearing portion of a touch roller, which is supported by the tip of an oscillating arm and is in contact with the surface of a sheet roll at a desired pressure, can slide along a guide portion formed on the oscillating arm toward an oscillating fulcrum. And nothing,
According to Japanese Patent Publication No. 57-28658, it is possible to detect the load applied to the oscillating fulcrum on the touch roller during winding with the load detector provided on the oscillating arm to detect the tension immediately before winding. It is known. In addition, the above-mentioned conventional technology enables more accurate detection and control in the point of detecting the tension immediately before winding, as compared with the method of detecting only the tension in the traveling path of the wide belt-like sheet, for example. It has the advantage of being compliant.

(Problems to be Solved by the Invention) However, the following problems also occur in the improved conventional art.

That is, at the time of winding a sheet such as a plastic film having a thin and easily stretchable property, it is necessary to work under low tension in order to avoid a situation in which the sheet is excessively stretched to cause permanent strain. . In this case, in the above-mentioned conventional technique for detecting the tension based on the sliding operation of the touch roller in contact with the exiting sheet roll surface under a high contact pressure in order to tightly wind the sheet layer by reducing the amount of air to be wound between the sheet layers, The sliding resistance between the bearing part of the touch roller and the guide part of the oscillating arm becomes large, resulting in a detection error.
It is very difficult to perform precise control.

(Means for Solving the Problems) In the present invention, therefore, a wide belt-shaped sheet is divided into a plurality of narrow sheets, and the sheets are alternately distributed to the left and right, and the distributed narrow sheet is driven centrally. Alternatively, in a device for winding on a winding core externally mounted on a winding shaft, a touch roller that is individually provided according to the narrow sheet and that contacts the surface of the narrow sheet roll being wound, and the touch roller are individually supported. A support frame which is capable of moving along a guide means provided in the width direction of the belt-like sheet, and which is provided so as to form a pair with the touch roller in the support frame, and which is running during the stage before the touch roller. It is characterized by comprising a detection roller for contacting the narrow width sheet, and a sheet tension detecting means provided on the detection roller for detecting the sheet tension of the traveling narrow width sheet.

(Operation) Therefore, according to the present invention, the sheet tension of the narrow sheet is individually provided almost at the stage immediately before winding, that is, according to the narrow sheet, and contacts the surface of the narrow sheet roll during winding. When the detection roller is provided on a common supporting frame so as to form a pair with the touch roller and contacts the narrow sheet, the sheet tension detection means provided on the detection roller can be used to specifically clarify. it can. Further, since the support frame that supports the touch roller and the detection roller can be moved along the guide means provided in the width direction of the belt-shaped sheet, when the division width (winding position) is changed, By moving the support frame along the guide means, the touch roller and the detection roller can be prepared.

(Embodiment) FIGS. 1 and 2 show a first embodiment of the present invention. FIG. 1 is a side view of a slitter winder, and FIG. 2 is a plan view thereof. Then, the strip-shaped sheet S sent out from the original fabric (not shown) is divided into a plurality of narrow width sheets by the slitter blade K, and thereafter, the sheets are alternately distributed to the left and right, and individually divided according to the narrow width sheet. After passing through the detection roller 1 and the touch roller 2 provided, it is wound up on the winding shaft or the winding core C as a narrow sheet roll R. The winding shaft or core C
Are respectively supported on the tip ends of winding shaft supports A provided according to the narrow sheet, and are centrally driven by a drive mechanism T via a belt 3 as a transmission mechanism. As the drive mechanism T, there are various electric motors, fluid pressure motors, a combination of a drive source provided outside the reel support A and a powder clutch provided on the reel support, and the like. B is a sliding base that is provided in the width direction of the belt-shaped sheet S for each of the distribution right side and the left side and guides and supports the winding shaft support. D is a fluid pressure cylinder that swings the winding support A together with the sliding base B. The sheet rolls R on the right side and the left side of the distribution are the fluid pressure cylinders D.
Thus, the touch roller 2 uniformly approaches and separates from the touch roller 2. Reference numeral 4 denotes a support frame that supports the detection roller 1 and the touch roller 2 in common and detachably. In this case, the touch roller 2 is provided in the support frame 2 and slightly swings about the spindle. It is detachably supported on the tip of the arm 5. Each supporting frame 4 is commonly supported by the sliding base 6 provided in the width direction of the belt-shaped sheet S for each of the right side and the left side of the distribution, and can be slid and moved individually on the base 6. is there.
Reference numeral 7 is a fluid pressure cylinder for adjusting the contact pressure between the touch roller 2 and the sheet roll R by pressing the touch roller 2 at the tip of the minute swing arm 5 against the sheet roll R.
Therefore, the contact pressure between each touch roller 2 and the sheet roll R can be individually controlled by the fluid pressure cylinder 7. Reference numeral 8 denotes a load detector (for example, a load detector provided on the bearing portion of the touch roller 2 where a force corresponding to the contact pressure is applied so as to measure the actual contact pressure between the touch roller 2 and the sheet roll R). Load cell) and 9
Is a load detector (for example, a load cell) provided on the detection roller in order to detect the sheet tension when the narrow sheet passes through the detection roller 1. The load detector 9 is provided on the bearing portion of the detection roller 1 to which a force corresponding to the sheet tension of the narrow sheet is applied.

Is an operation command signal from the winding contact pressure control device 10 to be described later to each fluid pressure cylinder 7, and based on this signal, for example, air pressure is sent to each fluid pressure cylinder 7 to move the touch roller 2 to the sheet roll R. The contact pressure between the two is controlled to be appropriate by applying pressure to the. Is an input signal from the load detector 8 provided on each touch roller 2 to the contact pressure control device 10, and is a contact pressure detection signal between the touch roller 2 and the sheet roll R. Is a winding tension control device described later.
This is an output signal from 11 to the drive mechanism T of each winding shaft support A. Based on this signal, each drive mechanism T rotationally drives the winding shaft or the winding core C with a required torque. Is an output signal from the load detector 9 provided on the detection roller 1 to the winding tension control device 11, and is a sheet tension detection signal for a narrow sheet. Further, the winding contact pressure control device 10 and the winding tension control device 11 send a sheet winding growth signal in accordance with a change in the winding diameter or the winding length of each narrow sheet roll being wound. It is input one after another as it is wound up.

FIG. 3 shows an embodiment of the winding contact pressure control device 10. In this case, the control device 10 includes a setting unit 10a that sets constants that determine the characteristics of the winding contact pressure pattern in consideration of the material of the strip-shaped sheet S, the sheet winding amount, and the like. A variable in the growth signal and a constant set in the setting unit 10a are compared and arithmetically operated to output a predetermined winding contact pressure, and the output signal from the arithmetical unit 10b is amplified and the like. Interface unit 10 which outputs a signal for operating a predetermined fluid pressure cylinder 7 as required.
c, a display unit 10d for inputting and displaying a contact pressure detection signal between the touch roller 2 detected by the load detector 8 of the touch roller 2 and the sheet roll R, and its display 10e. Then, the winding contact pressure is usually output so as to have a constant or increasing tendency with respect to the winding growth. It should be noted that the contact pressure detection signal may be displayed on the display device 10e to improve manageability and operability, but in this embodiment, the control unit is configured to feed back the signal to the calculation unit 10b. We are trying to improve That is, the control device 10 compares and calculates the constant set by the setting unit 10a, the winding growth signal, and the contact pressure detection signal by the calculation unit 10b, and provides the required operation command signal to the predetermined touch roller 2. Output to the fluid pressure cylinder.

FIG. 4 shows an embodiment of the winding tension control device 11. Then, the control device 11 in this case, the setting unit 11a that sets the constants that determine the characteristics of the winding tension pattern in consideration of the material of the strip-shaped sheet S, the sheet winding amount, etc. A variable in the growth signal and a constant set in the setting unit 11a are compared and calculated so as to obtain a predetermined winding tension, and a calculation unit 11b outputs the signal output from the calculation unit 11b. The interface section 11c for outputting a signal for driving the drive mechanism T of the winding shaft support A with the required torque, and the sheet tension detection signal for each narrow sheet detected by the load detector 9 of the detection roller 1 are input. And a display unit 11e for displaying the same. The winding tension is usually output so as to have a so-called taper tension, which is a characteristic that the tension is gradually reduced with respect to the winding growth. The sheet tension detection signal is displayed on the display 11
By displaying with e, it may be possible to improve the manageability and operability, but in this embodiment, the calculation unit 11b
The above signal is fed back to improve the control accuracy. That is, in the control device 11, the constant set by the setting unit 11a in the calculation unit 11b. The winding growth signal and the sheet tension detection signal are compared and calculated, and a required operation command signal is output to the drive mechanism T of the predetermined winding shaft support A.

FIG. 5 is a side view of the slitter winding machine according to the second embodiment of the present invention. And firstly, in the slitter winding machine of this embodiment, the touch roller 2 is supported by the tip of the fixed arm 12 of the support frame 4, and the contact pressure between the touch roller 2 and the sheet roll is adjusted by each winding shaft support. Is equipped with one end of the winding arm 1
3 and that the other end is controlled by a fluid pressure cylinder 15 connected to the base portion 14, which is different from the first embodiment. That is, by the fluid pressure cylinder 15, the winding arm portion 13 of the winding shaft support A is
Rocks. Therefore, the touch roller 2 and the sheet roll R are output from the winding contact pressure control device 10.
A signal for controlling the contact pressure therebetween is output to each fluid pressure cylinder 15. Secondly, in this embodiment, the load detector 8 for detecting the contact pressure between the touch roller 2 and the sheet roll R is provided on the fixed arm 12 to which the load of the sheet roll R is applied via the touch roller 2. Different from the first embodiment. Thirdly, in this embodiment, each support frame 4
A single drive screw shaft 16 that passes through all the support frames 4 in common is provided along a sliding base 6 that guides and supports each of the support frames 4, and each support frame 4 is externally screwed onto each of the screw shafts 16. It differs from the first embodiment in that an engagement / disengagement mechanism 18 for engaging / disengaging the female screw 17 of each support frame 4 is provided. That is, in this embodiment, each support frame 4 rotates forward and backward of the screw shaft 16 and engages and disengages.
Since it is possible to move individually according to the combination of 18,
It is possible to reduce the labor of the operator and the working time when the position of the support frame is changed.

Although the present invention has been described with reference to a few examples, it goes without saying that the modes in the embodiments can be variously changed and applied by well-known techniques of designers and the like.

For example, usually, a pair of winding shaft supports supports both ends of the winding shaft or the winding core, but one winding shaft support may support the winding shaft and the like in a cantilever manner. The approach / separation of the winding shaft support from / to the touch roller may be linear instead of the turning motion type as shown. Further, the load detector provided on the detection roller and the touch roller does not need to be an intervention site as long as it can detect the load, and the load detector itself is
Anything such as a strain gauge that can directly detect the load may be used. Further, the detection roller may be directly supported by the support frame of the touch roller as in the illustrated embodiment, or may be provided on the support frame of the touch roller via a micro-oscillation arm that supports the touch roller. May be indirectly supported. Further, the positional relationship between the touch roller and the detection roller may change depending on design conditions such as whether the traveling path of the belt-shaped sheet is provided above the device or below the device as in the illustrated embodiment. Needless to say.

In the second embodiment, an example of the mechanical movement mechanism of the support frame is shown, but a rack laid outside along the sliding base and a pinion provided on each support frame are engaged with each other to manually or manually operate the pinion. There is a type in which the support frame is moved by rotating it electrically, and the like, and the present invention is not limited to the illustrated one.

When the strip-shaped sheet is a thin plastic film or the like, it is preferable to provide each touch roller with a positive drive mechanism.

(Effects of the Invention) As described above, according to the present invention, the actual sheet tension immediately before the winding of each narrow sheet is directly and individually detected, and the detected value and the winding shaft drive mechanism are detected. By adjusting the control pattern in the winding tension control device that controls the winding tension by adjusting the Therefore, instead of detecting the tension based on the touch roller as in the prior art described above, a dedicated detection roller is provided in the support frame of the touch roller, so the tension is detected independently of the contact pressure. it can. Therefore, it is possible to minimize the detection error even when winding a sheet such as a plastic film with low tension and high contact pressure. Moreover, it is easy to feed back the detected value to the winding control device, and in that case, more accurate sheet winding can be performed.

Further, in the present invention, since the detection roller that contacts the narrow sheet is supported by the same support frame as the touch roller, it is not necessary to separately provide a means for supporting the detection roller in the traveling path of the narrow sheet. . Furthermore, since the support frame is movable along the guide means provided in the width direction of the strip-shaped sheet, even if the division specification of the wide strip-shaped sheet is changed,
Only by moving the support frame, it becomes possible to change the support positions of the touch roller and the detection roller.

That is, according to the present invention, without increasing the size of the device or complicating it, and without spending a lot of labor and working time when changing the split specifications, on the other hand, in detecting the seat tension. It is possible to provide a slitter winding machine that can perform accurate and accurate winding.

[Brief description of drawings]

FIG. 1 is a side view of a slitter winding machine according to a first embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is an explanatory view of an embodiment of a winding contact pressure control device, and FIG. FIG. 5 is a side view of the slitter winding machine according to the second embodiment of the present invention. 1 ... Detection roller, 2 ... Touch roller, 4 ... Support frame, 6 ... Guide means (sliding base), 9 ... Sheet tension detection means (load cell).

Claims (1)

[Claims] 1. A wide strip-shaped sheet is divided into a plurality of narrow strips, which are alternately distributed to the left and right, and the distributed narrow sheets are wound around a winding shaft that is driven centrally or a winding core that is externally attached to the winding shaft. In the device, a touch roller that is individually provided according to the narrow sheet and that contacts the surface of the narrow sheet roll being wound, and the touch roller can be individually supported, and are provided in the width direction of the strip-shaped sheet. A support frame movable along the guide means, a detection roller provided in the support frame so as to form a pair with the touch roller, and a contact roller for contacting a narrow sheet that is running before the touch roller; A slitter winding machine, comprising: a sheet tension detecting unit provided on a roller and configured to detect a sheet tension of a traveling narrow sheet.