JPS62113733A - Winding of strand in forming winder - Google Patents

Abstract

PURPOSE:To keep the diameter of filaments at a constant value, rapidly change over a collect and efficiently wind up the titled strand, by reducing the number of revolutions of the collet according to the roll diameter buildup of a cake of the strand winding collet. CONSTITUTION:A disklike turret head 4 is rotatably mounted on a face plate 3 vertically provided on a machine frame 2 through a sprocket 5, motor 6 with a speed reduction device, sprocket 7 and chain (7a) fixed on the back side thereof. On the other hand, two strand winding collets 8 are protrusively provided at the opposite positions in the diameter direction on the front side so that the collets 8 may be drivable by motors 10 respectively fixed on each collet 8. Molten glass or a synthetic resin in a raw material container 13 is drawn out from orifices 14 into filaments 15, which are then passed through a binder applicator 16 and collected by a collecting device 17. The resultant collected strand 18 is then wound into the collet 8 while traversed with a yarn guide 11 of a traversing device. The number of revolutions of the motor 10 is reduced stepless according to the roll diameter buildup of the cake. When the collet 8 becomes a full package, the turret head 4 is rotated clockwise 180 deg. through the motor 6 to wind the strand 18 onto a new collet 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (Instructional Field of Application) The present invention relates to a method for winding strands in a forming winder J3, and more specifically to a method for winding strands in a forming winder. The present invention relates to a winding method for keeping the diameter of the wound strand constant during the process of thickening the winding.

(Prior art) Glass, synthetic resin, etc. in a molten state is pulled through an orifice provided at the bottom of an original volume containing the glass, synthetic resin, etc.
When taking Ug as a strand before glass fiber or synthetic fiber by the collet of a forming winder, the winding length per rotation of the collet, in other words, increases as the winding thickness of the 71-ret cake (fiber bundle) increases over time. For example, since the pulling speed of the molten raw material increases, if no measures are taken, the strand to be wound becomes gradually thinner.

Conventionally, in response to the thickening of the cake in the collet, the temperature of the heating bush, that is, the orifice for drawing out the molten raw material, was gradually raised to increase the fluidity of the molten raw material. The amount through the orifice was gradually increased so that the diameter of the strand remained constant.

(Problems to be Solved by the Invention) However, since the above-mentioned conventional method is an indirect control method based on temperature adjustment, there are related problems as listed below. There is a problem in that there are many vectors and it becomes extremely difficult to control them.

■ It is necessary to understand the relationship between the orifice temperature, the fluidity of the molten raw material, and the suspension of the raw material through the orifice for each type of raw material.

(2) Based on the above-mentioned correspondence, it is necessary to calculate the temperature of the orifice at each point in the rolling and thickening process of the cake.

(2) It is necessary to accurately control the temperature of the orifice based on the calculated value.

Therefore, the technical problem to be solved by the present invention is to provide a simple and accurate control method for keeping the diameters of the lands 1 to 1 constant.

(Means for Solving the Problem) A technical means for solving the above problem is to adjust the winding rotation speed of the collet steplessly in response to the thickness of the cake rolled on the J5 collet for strand winding. The aim is to gradually reduce the

(Function) As the winding length per revolution of the collet increases as the cake becomes thicker, the number of rotations of the collet decreases, so the pulling speed of the molten raw material is kept constant.

(Example) Next, an example of the present invention will be described based on FIGS. 1 and 2.

First, in the forming winder winding device 1 used in this embodiment, a disc-shaped turret head 4 is rotatably attached to a face plate 3 installed upright on a machine stand 2, and fixed to the collecting surface side of the turret head 4. The sprocket 5 is linked via a chain 7a to a sprocket 7 fixed to the rotating shaft of a motor 6 with a speed reducer fixed to the machine stand 2.

Next, two collets 8 for winding the strand are arranged at opposing positions in the diametrical direction on the surface side of the turret head 4.
is provided so as to protrude from the surface of the turret head 4. The l1ill 19 of each collet 8 passes through the back side of the turret head 4 and is connected to the drive shaft of a pair of motors 10 fixedly attached to corresponding parts on the back side of the turret head 4, and @9 is a bearing (not shown). It is rotatably supported by the turret head 4 via.

The motor 10 is under the control of a known variable speed control device (not shown) using, for example, an inverter, and under the control thereof, a predetermined timing C, which will be described later, is controlled.
1. The rotation speed is started at a predetermined rotation speed, and then the rotation speed is steplessly reduced in proportion to the rotation duration time, and then stopped at a predetermined timing.

Next, a thread guide 11 of a twilling device (not shown) is provided at a predetermined portion of the face plate 3, and the thread guide 11 of the twilling device (not shown) rotates in synchronization with the rotation of the collet 8. It's starting to get pregnant.

This embodiment is carried out as follows using the winding device 1 having the above configuration.

That is, the glass or synthetic resin stored in the molten state C'' inside the raw material container 13 is pulled out through the orifice 14 kept at a constant temperature by appropriate means, and the filaments 1 to 1 are drawn out.
5, and the filament 15 is connected to the strand 1 by a known converging device 17 via a known bonding agent applying device 16.
After being focused as 8, the yarn is uniformly crossed by the thread guide 11 in the traversing device chamber, and wound by the corellas 1 to 8 at the first take-up position, which rotate in the winding direction as shown in the figure.

In this winding operation, the cake of the wound strand 18 gradually becomes thicker as the winding continues, but on the other hand, the cake of the wound strand 18 gradually becomes thicker as the winding continues. Since the winding rotation speed of the collet 8 is steplessly reduced due to the mechanical deceleration, the pulling speed of the molten raw material in the orifice 14 becomes constant, and therefore the diameter of the filament 15 and, by extension, the strand 18 is kept constant. .

When the collet 8 being wound reaches full volume, the turret head 4 is rotated 180° clockwise by the drive of the motor 6 with a reducer, and the empty collet 8 that was waiting and the fully wound collet l- At the same time, the motor 10 linked to the empty collet 8 is activated to start winding the strand 18 anew. Also, at this time, the fully wound collet 8 reaches a special position and stops the winding rotation, so a new empty collet 8 is replaced. Therefore, switching to an empty collet 8 due to full winding can be performed quickly, without reducing work efficiency.

In addition, as another embodiment of the present invention, the rotational speed of the motor that rotates the collet φλ may be steplessly reduced based on a signal from a sensor of an appropriate mechanism that detects the thickness of the cake roll. .

(Effects of the Invention) The present invention is capable of keeping the diameter of the filament 1 constant during winding of the strand in a forming winder, and also prevents switching to an empty collet due to full winding.
This has the effect of allowing the work to be carried out quickly without stopping the work.

[Brief explanation of drawings]

FIG. 1 is a front view of a forming winder used in an embodiment of the present invention, and FIG. 2 is a side view of the main parts thereof. 1... Winding device 8... Corerato 10... Motor 18... Strand

Claims (1)

[Claims] A method for winding a strand in a forming winder, characterized in that the winding rotation speed of the collet for strand winding is gradually and steplessly reduced in accordance with the thickness of the cake in the collet for winding the strand.