JPS6246454B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding device for pulling out a required length of wallpaper, etc. from a large roll and winding it up. The present invention relates to a winding device adapted to unwind in the axial direction, and provides a winding device with a simple structure that can prevent winding up into a bamboo shoot shape and efficiently perform the work of unwinding the wound material. .

In conventional winding devices, for example,
As described in Japanese Patent No. 51700, it is known that a winding shaft is reciprocated in the axial direction with a constant amplitude to wind a strip into a constant shape.
In order to reciprocate the winding shaft, which must be rotated, a reciprocating drive means is required, which has the drawback of significantly increasing the equipment cost.

The present invention proposes a winding device capable of solving the above-mentioned conventional problems, and its features include a cantilever-shaped winding rotation center shaft and a mechanism that moves in the axial direction of the winding shaft. a pulley for removing the strip to be wound; a pair of positioning tools for the strip to be wound; a pair of positioning tools for the strip to be wound; supported by the cart; and loosely fitted to the core shaft so as to be freely fitable and detachable; On the other hand, there is provided means for reciprocating the mandrel at a constant amplitude in the axial direction of the mandrel.

One embodiment will be described below based on the attached illustrative drawings. In FIGS. 1 and 2, reference numeral 1 denotes a winding rotation center shaft supported horizontally by a bearing 2 at one end, and an end protruding from the bearing 2. A passive pulley 3 is attached to the drive motor 4, and a belt 6 is stretched between it and the transmission pulley 5 of the drive motor 4.
Reference numeral 7 denotes a cart that is located below the mandrel 1 and is movable in the axial direction of the mandrel 1, and has a pair of left and right guide rails 8.
rollers 9 that sandwich the from above and below, and the guide rail 8
It is provided with steady rest rollers 10 that come into contact with the inner surface of the cylinder at both ends in the direction of movement and at an intermediate position, and is caused to reciprocate by a cylinder unit 11. FIG. 1 shows a state in which the truck 7 is at the backward limit position. 1
Reference numerals 2 and 13 denote positioning devices for the strip to be wound which are slidably fitted loosely onto the core shaft 1, and a pair of left and right guide rods 14 and 15 are provided on both front and rear ends of the truck 7, respectively.
It is mounted via vertical plates 18 and 19 on movable stands 16 and 17 which are supported so as to be slidable in the axial direction of the mandrel 1 via vertical plates 18 and 19.

As shown in FIG. 3, the movable base 16 that supports the positioning tool 12 on the base side of the mandrel 1 is provided with a pair of front and rear sliders 20 and 21 at its lower part, which are slidably and loosely fitted into the guide rod 14.
A piston rod of a cylinder unit 23 attached to a support member 22 supporting one end of the cylinder unit 23 is connected to the one slider 21 via a floating joint 24.

A movable base 17 that supports the other positioning tool 12
As shown in FIG. 4, a pair of front and rear sliders 2 are slidably fitted into the guide rod 15.
5 and 26 at the bottom, and a piston rod is connected to one slider 26 via a floating joint 27.
It is attached to another slider 29 which is slidably fitted into the guide rod 15. This slider 29 can be fixed at any position with a fixing screw 31 provided with a handle 30.

In FIG. 2, reference numeral 32 denotes support means for rotatably supporting the roll 33 of the strip to be wound;
It is composed of a plurality of rollers 34 arranged and supported in a letter or V shape. 35 is a guide rail for guiding the cutter, 36 is a belt running length measuring device, 3
7 is a strip guide roller. Further, in FIG. 1, reference numeral 38 denotes a positioning device for the roll 33, which is attached to the inner end of a screw shaft 39 with a handle.

Next, to explain how to use it, the positioning tool 38 shown in FIG.
is moved by rotating the screw shaft 39, and the roll 33 is set so that it does not move in the axial direction. Next, the strip 40 is pulled out from the roll 33 and guided by the strip guide roller 37 as shown by the imaginary line in FIG.
Wrap it around the mandrel 1 a little between 2 and 13. Note that the roller of the length measuring device 36 is brought into elastic contact with the strip 40. Also, loosen the fixing screw 31 of the slider 29 and move the movable base 17 to the guide rod 1.
5 to move the positioning tool 13 to a position corresponding to the width of the strip 40, and then lock the slider 29 with the fixing screw 31. In this way, the pair of positioning tools 12, 13 are brought close to both widthwise edges of the strip 40, but in this state, the piston rods of both cylinder units 23, 28 are at their retraction limit positions.

By operating the motor 4 and rotating the mandrel 1 in a predetermined direction, the strip 40 is pulled out from the roll 33 and wound around the mandrel 1. On the other hand, by both cylinder units 23 and 28, both movable bases 1
By repeatedly reciprocating the pair of positioning tools 12 and 13 at a constant amplitude on the rotating mandrel 1 via the positioning tools 6 and 17, the strip 40 wound around the mandrel 1 is moved in the axial direction and the bamboo shoots are moved. When I tried to become
Since both axial ends of the strip roll 41 on the core shaft are intermittently struck with the positioning tools 12 and 13,
The strip roll 41 on the core shaft does not deform into a bamboo shoot shape.

Since the length of the strip 40 wound around the mandrel 1 is measured by the length measuring device 36, when the winding length set in advance on the setting device and the measured value from the length measuring device 36 match The motor 4 is automatically stopped and the cutter (not shown) is automatically moved along the guide rail 35 to cut the strip 40. Also, when starting winding, the mandrel 1 is driven at low speed for a certain period of time, after which it is switched to high speed drive, and after the difference between the set value (winding length) and the measured value reaches a certain value, the mandrel 1 is driven at low speed for a certain period of time when winding starts. It can be controlled to switch back to low speed drive.

Once the strip 40 is cut, the strip roll 41 on the mandrel 1 is manually rotated to completely wind up the free end of the strip. The belt-shaped body roll 41 between the positioning tools 12 and 13 moves integrally with the trolley 7 by moving forward by the roller 8.
is pressed in the axial direction by the positioning tool 12,
It is extracted from the mandrel 1. Note that a receiver may be provided to receive the strip roll 41 that is pulled out from the core shaft 1 and falls from between the positioning tools 12 and 13. This receiver may be provided with a slit through which the vertical plate 19 supporting the positioning tool 13 can pass.
Furthermore, the cylinder units 23 and 28 that repeatedly reciprocate the positioning tools 12 and 13 are combined with a fluid flow path switching control means that automatically repeatedly reciprocates the piston rod. It is desirable to configure the system so that it stops only when it returns to its original state.

The winding device of the present invention can be implemented and used as described above, and by repeatedly moving the pair of positioning tools back and forth at a constant amplitude, the strip-shaped body to be wound around the mandrel is shaped like a bamboo shoot. However, since the pair of positioning tools are provided on a cart for removing the strip to be wound which is movable in the axial direction of the core shaft, it is possible to reliably prevent the winding from occurring as in the conventional method. Compared to the case where the guard shaft itself is reciprocated, a small and simple device can be used as the means for reciprocating the guard shaft, and moreover, it is possible to use a small and simple device as the means for reciprocating the guard shaft itself. By moving in the direction of the shaft center, the positioning tool can push the strip roll on the mandrel out of the mandrel, making it possible to efficiently extract the strip roll from the mandrel. Since there is no need to provide a separate pusher,
The structure of the entire device is also simple.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall front view, Fig. 2 is a partially cutaway side view, and Figs. FIG. DESCRIPTION OF SYMBOLS 1... Strip winding shaft, 7... Cart, 8... Guide rail, 9, 10... Roller, 11... Cart driving cylinder unit, 12, 13... Positioning tool, 14, 15... Guide rod, 16, 17... Movable Base, 20, 21, 25, 26, 29... Slider, 23, 28... Cylinder unit for repeated reciprocating of positioning tool, 24, 27... Floating joint, 31... Screw for fixing slider 29,
40... Band-shaped body.

Claims (1)

[Scope of Claims] 1. A cantilevered rotational shaft for winding, a cart for removing the wound strip that is movable in the axial direction of the shaft, and a carriage supported by the cart and relative to the shaft. A winding device comprising: a pair of positioning tools for a band-shaped object to be wound, which are loosely fitted to each other so that they can be freely fitted and removed; and means for reciprocating the positioning tools with respect to the cart at a constant amplitude in the direction of the core axis. 2. The winding according to claim 1, wherein one of the pair of positioning tools is configured such that its reciprocating position can be changed in the direction of the center axis with respect to the trolley. Removal device.