JPS5935832A - Method for forming and winding tape-like base material - Google Patents

Abstract

PURPOSE:To form and wind efficiently a tape-like base material in a state that there is no pitch variation, by forming the tape-like base material wound around plural pins planted like a ring, which rotate intermittently, to a waveform by two or more force pistons, and winding it to a core material. CONSTITUTION:A wind-released tape-like base material 1 is wound round on N-pieces of pins 26 of a die rotating body 12, its tip is fitted to a core material P, a cylinder 19a is moved downward, and the base material 1 is bent by pushing toward the axial core of the core material P by the tip of a force piston 20a. Subsequently, in the same way, a force piston 20b is moved downward and the base material is bent by pushing. Thereafter, a forming device and the core material P are rotated by 30 deg. in the same direction in a state that the force pistons 20a, 20b maintain the tape-like base material push-bent state. Subsequently, the force pistons 20a, 20b are drawn out to the outside of the pin 26 simultaneously, the cylinders 19a, 19b are returned to the original position by tensile force of the spring, in which the force pistons 20a, 20b are operated in the same way as above, and thereafter, it is repeated. On the other hand, a moving truck 27 moves in the core material axial direction by 1/N of tape width at the same time when the forming device and the core material P execute an intermittent rotation by 360 deg./N, and a tape is wound spirally.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming and wrapping a tape-like material in one wrap.The conventional method for forming and wrapping a tape-like material in one wrapper is as shown in FIG. After molding in the device 2, a method is adopted in which the guide 4 is pushed through the entrance of the guide 4, which is equipped with a brake 3 at the exit, to reduce the pitch, and is sequentially pulled out from the guide exit and wound around the outer periphery of the core material 5.

This method involves pulling out the compressed molded material from the guide outlet and wrapping it around the outer periphery of the core material.

During winding, the tension that the molding material receives between the guide outlet and the core material must be such that the molding pitch does not recover; in other words, it is necessary to wrap the molding material around the core material 5E under extremely low tension. Because of the constraint of being under low tension, it was not possible to improve the winding speed F5. Furthermore, since the speed of the forming phase drawn out from the guide outlet is slow, the speed of forming and pushing the tape-shaped material by the spur gear device 2 is inevitably limited and becomes slow, resulting in extremely poor productivity.

The present invention was made to address these conventional problems.
The purpose is to provide a method for efficiently forming a tape-like material and winding it into nine core materials without any fluctuation in thickness.

In order to achieve the above object, the gist of the invention is to include a mold rotating body having a plurality of bottles embedded in a ring shape on the side end surface, and a press mold having at least two press molds on the outer periphery thereof. A wave-forming device consisting of a rotating body is placed around the core material, and the shape is formed by pressing a tape-shaped push die wrapped around the bottle, followed by intermittent contact between the wave-forming device and the core material. This is a one-turn method for forming a tape-shaped material, which is characterized in that the forming material is wound around a core material by rotation and relative intermittent movement of a wave-forming device in the axial direction of the core material.

The embodiment shown in the drawings will be explained below.

1 and 2, ] 1 is a push-type rotating body;
12 is a mold rotating body, and 13 is a housing.

The push die rotating body 11 is rotatably fitted into the housing 13 via a bearing 14, and the die rotating body 12 is rotatably fitted into the housing 13 via the bearing 14.
A hollow shaft mounted on one end of [6]
It rotates together with the hollow shaft 16 due to the driving force t transmitted through the transmission wheel 17 attached to the other end of the hollow shaft 16.

On the side end surface of the push-type rotating body 11, a support stand 18a,
Clamps 19a, 19b held at 18b.

Guide grooves 21 for guiding the pushing dies 20a, 20b mounted on the tips of the clamps 19a, 19b are provided at a predetermined angle (30° in the embodiment), respectively.

ξ 22 is a support stand 181) and a hardware fixed to the housing. This is a tension spring that connects with the stand 23.

24 is a positioning rod for the push-type rotating body 11 fixed to the housing 5. It's Pa.

The side end surface of the mold rotating body 12 is provided with uniform holes 1. Push-type guide grooves 25 are cut in each of the grooves (in the embodiment, divided into 12 equal parts), and a bottle 26 is implanted in an annular shape on the inner diameter side between the guide grooves 25.

The molding device configured in this manner is disposed around the core material P which rotates intermittently, and the hollow shaft 16 of the molding device is
is linked via a known interlocking mechanism with a drive device (not shown), e.g.
The molding device is rotated intermittently by a predetermined angle (30° in the embodiment) by the operation of a drive device, and the molding device is installed on a moving cart 27 that moves intermittently in the axial direction of the core material.

When carrying out the method according to the invention using the apparatus described above, first, the tape-shaped material 1 unwound from the reel is wound around the bottle 26'' of the mold rotating body 12, and its tip end is The tape-shaped material 1i on the bottle 26 is clamped to the core material P, and in this state, by the downward movement of the clamp 19a, the tape-like material 1i on the bottle 26 is pressed and bent toward the axis of the core material P with the tip of the pressing mold 20a, and then pressed by the clamp 191). The mold 201) i is moved downward to extract oil from the tape-shaped material in the same manner as described above (see Fig. 3 (71, (a), (t)).

When this operation is finished, the double pressing molds 20a and 20b are
6--While holding the tube-shaped pressed and bent state, the forming device and the core material P are rotated in the same direction by the same angle, that is, 30', by the drive device (not shown) (see Figure 3). ). ], 9a, ]9b at the same time (this-
[- move the double press molds 20a, 20b outward from the f-bin 26, (at this time, the double press molds 20a, 20b
The guide piece 20', which is used for some purpose, is removed from the guide groove 25. ) Syringes 19a, 19 due to the tensile force of the tension spring.
b Return to its original position (see Figure 3).

(see force)). At this return position, when the sill 19a is operated by the same operation e as described above, the press die 20a pushes into the molded part 9 formed by the press die 2Obf in the previous step and holds the molded material. 1.9 shillings with string
When b is activated, the tape material in the unformed part is pressed into the press die 20.
Press b to press down the molding spoon, and then the above operation is repeated.

On the other hand, the movable cart 27 intermittently rotates 360 degrees between the molding device and the core material P by □ (rq is the number of bins), and at the same time, the center of the non-illustrated drive unit tape [1] W is rotated by -; t IIL1
By moving in the +1 M direction, the forming phase is wound around the core material P in a spiral shape. Then, when the movable cart reaches a predetermined stop position, the required wrapping operation is completed by cutting the molded material.

As described in detail below, the intended purpose of the invention can be reliably achieved by carrying out the zero-wrap forming method of the present invention using the above-described apparatus.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of the molding device, and FIG. 2 is a front view. FIG. 3 is a process explanatory diagram of the inventive molding 8-wrap method. Figure 4 shows a schematic side cross section of the conventional device. ]]...Push mold rotating body 12...Mold rotating body ]3...
・/%Using 14.15...Bearing 16...Hollow shaft 17...Transmission wheel 18a, 18b...Support stand'
19a, 19b--Cylinder 20a, 20b--Press die 21.25...Guide groove 22...Tension spring 23
...Stand 24...Positioning stopper < 26
1. H”27...Moving trolley P...Core material Applicant: Sumitomo Heavy Industries, Ltd. Sub-agent Patent attorney Isamu Ohashi 9-

Claims (1)

[Claims] A wave forming device consisting of a mold rotating body having a plurality of bottles planted in an annular shape at the side end and a pressing mold rotating body having at least two wooden pressing molds on its outer periphery is arranged around the core material. Then, the tape-like material wound around the bottle is shaped by a pressing operation of a press mold, and then by intermittent rotation of the waveform shaping device and the core material and relative intermittent movement of the waveform shaping device in the axial direction of the core material. A method for forming and wrapping a tape-like material, characterized by wrapping a forming material around a core material.