JPS6223692B2 - - Google Patents

Description

[Detailed description of the invention] A turret-type shaft-driven winding machine having a winding position, a sheet roll take-out position, and a winding shaft supply position, in which a touch roller at the tip approaches the winding shaft at the winding position, and the winding progresses. A turret-type shaft-driven winding machine comprising a tatsuchi roller support arm that rotates as the winding progresses, and a support roller that vertically rises from a retracted position below the winding position to support the winding shaft or the lower surface of the sheet roll being wound at the start of winding. Regarding.

Conventional turret type winders include a turret roller supported by a swinging arm and applied to the outer periphery of the sheet roll being wound with the required pressure, and a turret roller installed coaxially at the swinging fulcrum of the swinging arm. Some devices include a sheet cutter that is attached to the tip of another swinging arm and cuts off the trailing end of the sheet roll that has been moved to a carry-out position or the like and winds the sheet onto a new winding shaft at the winding position.
However, in the case of the above device, the weight of the sheet roll during winding and the pressure from the touch roller are supported only by the winding shaft supported at both ends, so when making heavy sheet rolls, etc. Precise winding cannot be performed due to bending of the winding shaft. Furthermore, in the case of the above-mentioned apparatus, during the turret of the winding machine, the sheet cutter must be evacuated from the winding position so as not to obstruct the turret, and a large-scale mechanism is required for this purpose.

Furthermore, a winding device equipped with a roller that comes into contact with the lower surface of the sheet roll being wound and thereby applies a driving force is proposed in Japanese Patent Publication No. 52-21144 ``Automatic Sheet Winding Device.'' In the case of the above-mentioned conventional apparatus, a dedicated cutting mechanism and winding mechanism are separately provided for cutting the trailing end of the sheet roll and winding it around a new winding shaft, which increases the size of the apparatus and increases the space occupied.

SUMMARY OF THE INVENTION The present invention provides a turret-type shaft-driven winding machine of this type, which includes: a rotating mechanism that is rotatably supported at the end of a support roller that supports a sheet roll and can be raised and lowered together; A guide roller that turns upward at the start and winds the traveling sheet onto a new reel, a push rod that presses the wound sheet against the surface of the reel, and a sheet cutter that cuts the sheet between the guide roller and the push rod. It is characterized by being prepared.

Hereinafter, the configuration and embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention, in which a turret type shaft-driven winding machine 1 has a winding position A and a sheet roll take-out and winding shaft supply position B.
Then, the touch roller 3 at the tip is attached to the winding shaft 2 at the winding position A.
The Tatsuchi roller support arm 4, which rotates as the winding progresses, rises vertically from the retracted position below the winding position A at the start of winding to support the winding shaft 2 or the lower surface of the sheet roll R being wound. A support roller 5 that prevents the winding shaft from deflecting, etc., a guide roller 6 that is supported by the support roller shaft and moves up and down together, and when winding starts, turns upward and winds the running sheet S onto a new winding shaft, and a winding roller 6. It is equipped with a push rod 7 for pressing the sheet onto the winding shaft surface, a turning mechanism 9 having a sheet cutter 8, and the like. The winding machine 1 itself is a known one, and in this example, the sheet roll R take-out position and the winding shaft supply position are the same position B, which serves both. However, the winding machine may have three turret stations, each located at a different location. The Tatsuchi roller support arm 4 includes the Tatsuchi roller 3 that approaches the winding shaft 2 at the winding position A, as well as several sheet guide rollers 1.
0 is attached, and its rotation is caused by the fluid pressure cylinder 11.
controlled by The support arm 4 is enlarged near the support shaft 12, and a slitter 13 for dividing the sheet width is incorporated therein. In the slitter of this embodiment, the upper blade 13b is applied from two directions to a single lower blade 13a passed between the left and right support arms 4, 4, and is prepared and operated alternately. The upper blade 13b
The round bar 13c that serves as a rail for lateral movement is also connected to the lower blade 13a.
Similarly, it is passed between the left and right support arms 4, 4.

The touch roller 3 at the end of the support arm 4 is driven by a gear 20 on the support arm, and feeds the sheet S by sandwiching it between it and the pinching guide roller 10a.
All guide rollers 1 on the support arm 4 in front of this
0 and 10b are driven at constant speed by gears 21 and 22 via a belt or chain. The above gear 21
rotates the coaxial cone pulley of gear 20 via the gear 23 meshing with this, its coaxial cone pulley, and belt 24. Therefore, the gears 20 and 21 can be finely adjusted by the two cone pulleys and the belt 24. By slightly varying the rotations of the guide roller 10b and the touch roller 3 through the above-mentioned fine speed adjustment, the sheet tension can be weakened or eliminated. For example, in the case of a sheet that stretches easily, such as a resin film, it is inevitable that the sheet will stretch due to the tension during running, but just before winding, the sheet should be returned to its standard state, and in this state, the sheet should be wrapped around the touch roller 3. After that, it is wound onto the winding shaft 2 again using optimally controlled winding tension.

A support roller 5 that supports the winding shaft 2 or the lower surface of the sheet roll R being wound is placed on a lifting platform 5a that moves along a guide column 14 standing perpendicularly from the floor surface, and is raised and lowered by a hydraulic cylinder 15 located above. Even if the weight of the support roller 5 increases due to the growth of the sheet roll,
It is arranged to descend along the guide column 14 at a speed calculated according to the winding speed. Its support roller 5
Since the movement is vertical, it is easy to calculate the rate of descent as the sheet roll grows. Since the elevating table 5a is divided into left and right parts, a small gear 18 is attached to each side, and the pinion gears 18 are meshed with respective rack teeth 17 on a common vertical surface of the machine frame 16. Therefore, the support roller 5 moves up and down in a horizontal state.

A turning mechanism 9 is pivotally supported at both ends of the right side of the support roller 5 in FIG. The turning mechanism 9 has a sheet cutter 8 mounted parallel to the winding shaft 2 between rotating plates 19 on both sides supported by both shaft ends 19a, and rotating plates 19 on both sides using fluid pressure. By turning and raising the cylinder 11a, it is moved from the position shown by the chain line in FIG. 3 to the position shown by the solid line. When the turning mechanism 9 starts up as shown in the solid line position, the guide rollers 6 attached to the rotating plates 19 on both sides push up the sheet S that passes under the winding shaft 2 and connects to the sheet roll R at the sheet roll take-out position B. Together with the touch roller 3 and support roller 5, this is attached to the winding shaft 2.
Wrap it around. A push rod 7 is attached to both rotating plates 19 via springs 7a attached to both rotating plates 19.
When the sheet S rises, the push rod 7 moves the entire width of the sheet S onto the winding shaft 2.
Press it against the surface. At this time, the cutting edge of the cutter 8 is directed toward the sheet S which is stretched between the push rod 7 and the guide roller 6. The cutter 8 is attached between supporting plates 8a that are attached to rotating plates 19 on both sides and supported by a shaft, and its cutting edge cuts the tense sheet S by the operation of a fluid pressure cylinder 11b that rotates the supporting plate 8a. do. The cutter 8 may be a saw blade, a straight blade, a heating knife, or a running round blade. The support roller 5 may be rotated as a result of the winding shaft and the sheet roll, but in this embodiment, in order to rotate in conjunction with the rotation of the winding shaft, a transmission mechanism (not shown) that is not affected by the elevation of the support roller is used.

To use this device, the support roller 5 is retracted sufficiently downward, the completed sheet roll R at the winding position A is rotated by the turret device and transferred to the take-out position B, and at the same time, the new winding shaft 2 is moved to the winding position. Move to A. To wrap the sheet S at the rear of the sheet roll R around this new winding shaft and cut the tail,
As mentioned above, the support roller 5 is raised to the position shown in FIG.
The cylinder 11b is operated to cut the sheet S. Then, the cut end is wound onto the winding shaft. As the winding diameter increases, the touch roller support arm 4 rotates little by little, and the support roller 5 descends. Incidentally, the rising turning mechanism 9 returns to the position shown by the chain line in FIG. 3 at the start of winding.

The sheet S to be wound up is divided into required dimensions by a slitter 13 attached to the support arm 4. Then, the tension of the traveling sheet is weakened to a substantially standard state by the aforementioned fine speed adjustment mechanism (cone pulley and belt), and the sheet moves around the touch roller 3.

Although one embodiment has been described above, it is needless to say that the embodiment thereof can be varied and applied in various ways according to well-known techniques of designers, etc., without changing the gist of the present invention.

According to this invention, the support roller that vertically moves up and down supports the shaft-driven winding shaft and sheet roll from below, and further supports the rotating mechanism provided with the sheet winding guide roller at the shaft end of the support roller. At the start of winding, the sheet can be wound reliably by three members: a touch roller that approaches the winding shaft, a support roller that receives the lower side, and a guide roller attached to a rotating mechanism that presses and winds the sheet. Furthermore, since the conventional troublesome dedicated sheet winding mechanism and independent cutting device are no longer necessary, materials and space can be simplified. Moreover, since the sheet roll being wound up is supported by the support roller, even if a heavy sheet roll is made, the winding shaft will not bend due to its weight.

[Brief explanation of the drawing]

1 and 2 are an elevational view and a plan view of one embodiment of the present invention, and FIG. 3 is an enlarged elevational view of the main part thereof. DESCRIPTION OF SYMBOLS 1... Shaft drive winder, 3... Touch roller, 4... Touch roller support arm, 5... Sheet roll support roller, 6... Guide roller, 7... Push rod, 8... Sheet cutter, 9... Turning mechanism.

Claims (1)

[Scope of Claims] 1. A turret-type shaft-driven winding machine having a winding position, a sheet roll take-out position, and a winding shaft supply position, in which a touch roller at the tip approaches the winding shaft at the winding position, and the winding progresses. A turret-type shaft-driven winding machine comprising a tatsuchi roller support arm that rotates as the winding progresses, and a support roller that vertically rises from a retracted position below the winding position to support the winding shaft or the lower surface of the sheet roll being wound at the start of winding. a rotating mechanism that is rotatably supported by the end of the support roller and can be raised and lowered together; a guide roller that is provided on the rotating mechanism and that rotates upward at the start of winding to wind the traveling sheet onto a new winding shaft; A turret-type shaft-driven winding device comprising: a push rod that presses the wound sheet against the surface of the winding shaft; and a sheet cutter that cuts the sheet between the guide roller and the push rod.