JPH0212868B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to an improvement of a continuous automatic winder for winding a tube made of resin onto a drum.

B. Prior art As shown in Fig. 5, the conventional method for switching drums when continuously winding a resin tube is as follows.
The tube from the full drum is cut and the tube 2 is cut into the next drum. The end of the tube 2 on the side where winding is to be started, that is, the A end, is between the side wall of the drum 1 where new winding is to be started and the drive plate 4 for driving the drum. The method used is to fix it on the surface and wind it up. In this case, the tube climbs over the flange of the drum and falls onto the drum to be wound up, so that the tube at the slanted portion may be crushed by the winding tension, and the tube may be scratched by rubbing against the side wall of the drum.

On the other hand, as shown in Fig. 6, several tube ejection holes 5 are provided in the side wall of the drum near the body, and as shown in Fig. 7, the tubes are inserted into the ejection holes 5 up to the position indicated by the dotted line in the figure. Stick out the chuck 8, put the A end of the tube in the chuck 8, operate the chuck cylinder (hereinafter referred to as B-cylinder) 7 to grasp the A end, and then insert the chuck drawing cylinder 6 (hereinafter referred to as A-cylinder) into the chuck 8. )
A method is used in which the chuck 8 is pulled out to the position shown by the solid line in the drawing, the A end of the tube is pulled out through the hole, and the tube is fixed to the drum side wall 1 or the drum driving plate 4 and then wound up.

C. Problems to be Solved by the Invention In the case of resin tubes, it may be necessary to supply air from the A end of the tube to the inside in the next process. For this purpose, it is necessary to prevent the tube from bending in order to prevent tube blockage. However, in the conventional method shown in Fig. 5 in which the A end is fixed to the outside of the side wall, the tube part along the side wall is crushed and closed by the winding tension, and the A end of the tube cannot be chucked from the side wall of the drum. The method of pulling out the tube shown in FIG. 7 has the problem that the tube is bent at the edge of the tube removal hole 5 and is pressed against the tube by the tube being wound up in that state, causing the tube to become blocked at the bent portion. There are problems that cause blockages.

An object of the present invention is to provide a continuous automatic winder which eliminates the drawbacks of the conventional winders by winding the tube without bending it.

D. Means to solve the problem The present invention will be explained below using drawings of embodiments.

In the present invention, a drum having tube removal holes 5 shown in FIG. 6 is used. As shown in FIG. 1, the tube is wound up at the location shown in FIG. Next, the angle of the empty drum 1 for starting winding is fixed at the location a so that the tube take-out hole 5 is at a predetermined position. For this purpose, it is advisable to determine the position of the hole using a phototube. While holding this position, move the empty drum 1 to the location b. The tube 2 from the tube processing device moves as shown by the dashed line in FIG.
Grab and cut. The lever 9 rotates to the position indicated by the dotted line in the drawing, and guides the A end of the tube 2 to the position of the tube takeout hole 5 of the empty drum 1.

In the present invention, as shown in FIG. 2, a chuck 8 is provided at the tip, and an air cylinder for moving the chuck 8 from side to side A-cylinder 6 and a B-cylinder for gripping and opening the chuck 8. A tube A end take-out device is provided having a tube A end extraction device 7, which device is attached to a plate swingable at a fulcrum 13, the plate having an air cylinder 12 (hereinafter referred to as C-cylinder) swingable at a fulcrum 14 and an air cylinder 12 (hereinafter referred to as C-cylinder) swingable at a fulcrum 15. connected. As mentioned above, the A end of the tube 2 is guided to the inside of the tube takeout hole 5 of the empty drum 1, but as shown in FIG.
The chuck 8 which is opened by the cylinder 7 is moved rightward by the A cylinder 6 and is projected to the inside of the drum 1 through the tube removal hole 5. When the A end of the guided tube 2 is passed through the open chuck 8 and the B cylinder 7 is actuated, the A end is chucked by the chuck 8. Open the chuck part 10 and return the lever 9 to its original position. Next, the A cylinder 6 is activated to pull the chuck 8 out of the side wall of the drum 1, and the C cylinder 12 is then activated to move the swingable plate downward, so that the chuck 8 of the tube 2 is pulled out as shown in FIG. The end is straightly pulled out of the drum 1 without being bent and guided to the outer periphery of the drive plate 4.

The winding drum 1 is driven by a drive plate 4,
As shown in FIG. 4, the drive plate 4 has a lever 16 that can swing around a fulcrum 19 connected to a spring 18.
A chuck portion A20 is formed between one end of the lever 16 and the drive plate 4, and the chuck is normally closed by a spring 18. A pressing air cylinder 17 (hereinafter referred to as a D-cylinder) is provided for opening the chuck portion 20 to a position where the other end of the lever 16 can be pressed.

Activate the D-cylinder 17 to press the end of the lever 16 to open the chuck part A20, and insert the A end of the tube 2 guided outside the side wall of the drum 1 between the tube parts A20, and then press the end of the lever 16. 17, the chuck portion A20 is closed, and the A end of the tube 2 is fixed to the drive plate 4. B - Release the A end from the chuck 8 by means of the cylinder 7.

After completing the above procedure, winding of the tube onto a new drum 1 is started.

By repeating this procedure, the plastic tube can be completely automatically and continuously wound so that the tube does not bend and air can be supplied from the A end.

In the above description, each operation is performed by an air cylinder, but it goes without saying that this operation may also be performed by hydraulic or electrical methods.

E. Effects of the Invention As explained above in detail, the continuous automatic winding machine of the present invention can handle plastic tubes from the tube manufacturing or processing equipment without bending the tubes, so that air can be removed from the A end of the tubes in the subsequent process. It is possible to completely automate the switching of the drum while allowing the insertion of drums, making it extremely effective as a continuous automatic winder for tubes.

[Brief explanation of drawings]

Figure 1 is a front view of the automatic winding machine of the present invention, Figure 2 is a front view of the automatic winding machine of the present invention;
3 are front views showing the mechanism for guiding the A end of the tube out of the drum and its operation, and FIG. 4 is a front view showing the structure of the drum driving plate. Figure 5,
FIG. 6 is a front view showing the operating state of a conventional winding machine;
FIG. 7 is a front view of a drum used also in the present invention. 1...Drum, 2...Tube, 3...Fixing part, 4...Drum drive plate, 5...Tube removal hole, 6...Cylinder for chuck extraction (A),
7...Chuck (B) cylinder, 8...Chuck,
9... Lever, 10... Cutting and chuck part, 1
1... Guide roller, 12... Air (C) cylinder, 13, 14, 15, 19... Fulcrum, 16...
Lever, 17... Pressing air (D) cylinder, 18
...Spring, 20...Chuck part A.

Claims (1)

[Claims] 1. A chuck made of resin by sequentially replacing the drum.
In a winding machine that continuously automatically winds up a drum, a drum 1 has a plurality of tube take-out holes 5 for pulling out the tips of tubes 2 in a part of the side wall of the drum near the drum.
Cut the mechanical rotor tube 2 that holds the empty drum at a certain angular position, moves it to a predetermined position, and connects it to the drive plate 4, and grasp the winding start end (A end) of the tube. Mechanisms 9 and 10 for guiding the drum to the tube take-out hole 5 of the drum.
Mechanisms 6 and 7 for gripping the A end of the tube and pulling out the gripping part 8 from the tube removal hole 5 of the drum; A rotating mechanism that moves the tube so as to pull it straight out without bending it from the tube take-out hole 5 of the drum.It has a mechanism that fixes the A end of the moved tube to the tube fixing chuck part A20 provided on the drum drive plate 4. A continuous automatic resin tube winding machine characterized in that, after operating in the above order, the drive plate is driven to start winding the tube on a new empty drum, thereby preventing bending of the tube at the beginning of winding. 2. The continuous automatic resin tube winding machine according to claim 1, wherein the positioning, that is, the angle detection of the tube take-out hole 5 of the empty drum 1 is performed using a phototube. 3. A continuous automatic resin tube winding machine according to claim 1 or 2, characterized in that the gripping and opening operations of the gripping portion (chuck) 8 and the movement thereof are performed by an air cylinder.