JPS59230949A - Automatic switching device for dual-winder - Google Patents

Abstract

PURPOSE:To perform the automatic rewinding of sheets by transferring liners wound out from two bilaterally placed liner wind-out devices to the position just under an automatic cutter, by means of guide roll. CONSTITUTION:At the same time that the winding by a winder shaft 8 is finished, the piston rod 19 of a cylinder 17 is pulled in, the piston rod 20 of another cylinder 18 is pushed out, and a guide roller 16 is set just under a guide conveyers 7. When a clamp 3 is opened simultaneously with the revolving of pinch rolls 2 and a winder shaft 9, a sheet 1 is brought down following the downward movement of each inner side of guide conveyers 7 which are installed face to face each other. Thereafter, the end of said sheet 1 reaches on a liner 13 which is moving through a guide roller 16 position below no guide conveyers and is being wound by a winder shaft 9, and this end of said sheet 1 hanging downward is transferred to said winder shaft 9 side according to the transferring of said liner 13 and is wound up by said winder shaft 9 getting between said liner 13 and said winder shaft 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic switching device for a dual winder that winds sheet products.

For example, on a calender line that makes a part of a rubber tire, a base cloth is sandwiched between rubber in a calender to continuously form seven sheet-like fabrics, which are then passed through a cooling device, an accumulator, etc. It is rolled up using a winder with a lychee unwinding device.

Since this winder is a fixed dual type winder, a feeding device is installed at the upper part of the intermediate position of the winder, and one winder winds up a predetermined amount of fabric fed in a hanging state from the feeding device, and the winder Once the fabric was finished, it was necessary to stop the pinch roll, clamp it, cut it with a cutter, and then pull the fabric into the other winder and rewind it.

However, conventionally, cutting and rewinding the fabric has been done manually, requiring two workers and requiring a great deal of labor and time. Furthermore,
Since the fabric is continuously fed during cutting and rewinding operations, a large accumulator had to be provided for temporary storage.

In view of such circumstances, the present invention moves the liner unwound from the left and right liner unwinding devices to the lower part of the automatic cutter device using guide rolls, and automatically performs the rewinding work of sheet products that used to be done manually. In particular, the present invention relates to an automatic switching device for a dual winder that makes it possible to reduce the labor involved in rewinding work, shorten the time required for rewinding work, and downsize the accumulator.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which a cutter (5) is provided between upper and lower clamps (3) and (4) below a pinch roll (2) of a device for feeding out a sheet product (1). An automatic cutter device (6) is installed, and a pair of guide conveyors (7) are arranged vertically and parallel to each other below the automatic cutter device (6). A pair of left and right winder shafts (8) (9) are provided diagonally downward, and a lychee unwinding device 0e is installed near each winder shaft (8) (9).
a9 are installed respectively, and the liner (2) α[present] to be unwound from each unwinding device o0αD is guided by the guide roller 0→, and each - guide roller αυα0 is connected to the cylinder αη(
The guide rollers 09θυ are attached to the tip of the piston rod Onm (to), and each guide roller 09θυ is configured to be able to move below the guide conveyor (7), and the liner (2) o3 is moved through the guide conveyor (7) below. Each winder shaft (8)
(9) It is K so that it can be wound up.

Next, the operation of the present invention will be explained.

When the winding amount by one winder shaft (8) reaches a certain amount, the pinch roll (2) and the winder shaft (8) are stopped, and the sheet is cut by the clamps (3) and (4) of the automatic cutter device (6). The product (1) is lightly pressed and fixed, and the sheet product (1) is cut with a cutter (5). Lower clamp (4)
When the winder shaft (8) is released and the winder shaft (8) is driven again, all cut sheet products are wound up. At this time, the piston rod α of the cylinder Q71 is in a protruding state, and the guide roll (c) is located below the guide conveyor (7).

At the same time as the winding by the winder shaft (8) is completed, the piston rod α Samurai of cylinder 0 is retracted, the piston rod (E) of the other cylinder 0 is protruded, and the guide roller (to) is moved to the guide conveyor (7). Position it below. Furthermore, pinch roll (2) and winder shaft (9)
When the clamp (3) is released at the same time, the 7-item product (1) is guided by the guide conveyor (7) whose inner sides facing each other move downward and hangs down. The liner 0'3 is wound onto the winder shaft (9) via the roller QfS, and the end of the hanging sheet product (1) moves toward the winder shaft (9) as the liner 03 moves. It is wound around the winder shaft (9) so as to be sandwiched between the liners.

The above operation can be performed, for example, by providing a winding amount detector and a winding completion/completion detector on the winder shaft (8) (9).
) When the winding amount in (9) reaches a certain amount, the automatic cutter device (6) automatically operates, and when winding on the winder shaft (8) (9) is completed, the guide roll Qυ of the liner υα [with]
Since (to) is automatically moved and replaced, manual work during rewinding is not required and rewinding time is significantly shortened. Therefore, the length of the sheet product fed during the rewinding operation is significantly shortened, and the capacity of the accumulator for storing the sheet product is also small.

Fig. 2 shows another embodiment of the present invention, which has substantially the same configuration as the previous embodiment, but with a sufficiently long distance between the pinch rolls (2) and the parallel guide conveyor (7), This is an example in which the cutter device (6) is arranged so that it can be lowered at the same speed as the drooping speed of the sheet product (1). In FIG. 2, the same reference numerals as in FIG. 1 indicate the same components.

In the case of this embodiment, when the winding amount of one winder shaft (8) reaches a certain amount, the automatic cutter device (6) is located near the pinch roll (2) and is the same as the sheet product (1). It is clamped while descending at a high speed, cut with a cutter (5), and the lower clamp (4) is released. The cut sheet product (1) is thereby completely wound up. Further, the automatic cutter device (6) further descends while the upper clamp (3) remains in the clamped state, and the upper clamp (3) is released just before the parallel guide conveyor (7), so that the sheet product (1) The end of the winder enters the guide conveyor (7) and is wound around another winder shaft (9) so as to be sandwiched by the liner α guided by the switched guide roll Qe.

Therefore, the sheet product (1) can be fed without stopping the pinch roll (2) during the rewinding operation, eliminating the need for an accumulator and reducing equipment costs.

Note that the automatic switching device for a dual winder of the present invention is not limited to the above-mentioned embodiments, and may also include the use of a screw shaft or the like instead of a cylinder as a means for moving the liner guide roll, and the use of not only fabrics but also fabrics. It goes without saying that various modifications may be made without departing from the spirit of the present invention, such as being applicable to a winding device for thin plate-like objects.

As described above, the dual winder automatic switching device of the present invention exhibits various excellent effects as described below.

(C) Since the liner unwound from the left and right liner unwinding devices is moved to the lower part of the automatic cutter device using guide rolls, the work of rewinding sheet products can be performed automatically.

(n) Since the cutting operation has been automated, the work time, which used to be about 40 seconds manually, can be reduced to 2 to 5 seconds.

(2) Since the amount of accumulator can be significantly reduced, the accumulator can be made smaller and equipment costs can be reduced.

(2) The device is simple and there is space around the winding device below the automatic cutter device, making maintenance easy.

(v) If the automatic cutter device is arranged so that it can be raised and lowered, an accumulator is not required, further reducing equipment costs.

[Brief explanation of the drawing]

FIG. 1 is a detailed explanatory diagram of the present invention, and FIG. 2 is an explanatory diagram of another embodiment of the present invention. (1) is a sheet product, (2) is a pinch roll, (6) is an automatic cutter device, (7) is a guide conveyor, (8) (9)
is the winder shaft, a0αD is the liner unwinding device, (a) α
[Yes] is liner, Qf9Qej is guide roller, α'7
1a indicates a cylinder. 12 14 14

Claims (1)

[Claims] 1) Below the automatic cutter device that cuts the sheet product hanging down through the pinch rolls, winder shafts are arranged on the left and right sides to wind up the liner unwound from the left and right liner unwinding devices via guide rolls, respectively. Automatic switching of the dual winder, characterized in that each of the guide rolls is movable by a downward swing of the automatic cutter device, and is configured to alternately guide the sheet products onto liners wound around the two winder shafts. Device.