JPH0657618A - Tenter-driving device - Google Patents

Abstract

PURPOSE:To simplify the movement-driving equipment of a tenter device. CONSTITUTION:The needles 4 of a linear motor are continuously attached to a pair of right and left tenter chains 1, 1 at proper intervals over the whole length of the right and left tenter chains 1, 1 in the tenter device, and the suitable number of stators 5 constituting the linear motor in response to the needles 4 are also attached to the fixing member of a tenter device at proper intervals along the movement route of the right and left tenter chains 1, 1. The needles 4 are linearly moved on the tenter chains 1, 1 by the electric excitation of the stators 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device for a sheet material base tenter device for fabrics, nonwoven fabrics and other webs.

[0002]

2. Description of the Related Art In this type of tenter device, a pair of left and right tenter chains b, b running while holding both edges of a sheet-like base material a are driven by a rear portion of the device as shown in FIG. By providing a DC motor or a variable speed motor M such as an inverter motor, a speed reducer C, a chain, a belt or other interlocking mechanism d, and a bevel gear device e, the control panel f controls the variable speed motor M. Generally, the tenter chains b, b are driven at a predetermined speed.

[0003]

In the case of the driving means for driving the tenter in the related art, there are many mechanical parts in the transmission mechanism including the variable speed motor M, which makes the operation and management troublesome and the working capacity thereof is small. It is limited within the capacity range of the variable speed motor, and therefore, when changing to a speed higher than that range, it is necessary to replace the existing equipment.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to eliminate the disadvantages of the above-mentioned conventional means by a very simple means, and a pair of left and right tenter chains for holding both edge edges of a sheet-like base material. Each of the movable parts of the linear motor is continuously mounted at appropriate intervals, and an appropriate number of the stator parts of the linear motor main body facing the movable parts are provided along the moving direction of the tenter chain so that the fixing members of the tenter device are suitable. It is characterized in that it is arranged at a position.

[0005]

In the apparatus of the present invention, when the stator portions 5 of several linear motor bodies fixedly arranged at the front and rear positions of a pair of left and right tenter chains 1 and 1 as shown in FIG. The mover part 4 attached to each of the tenter chains 1 and 1 facing this moves linearly in a predetermined arrow direction,
The tenter chains 1, 1 to which the mover part 4 is attached continuously move continuously at a predetermined speed, and the tenter chains 1, 1
The sheet-shaped base material a holding both edges is moved to the clip or pin 2 of the connecting piece attached to 1.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the device of the present invention will be described below with reference to FIGS.

The sheet-shaped base material a is made to run continuously in the direction of the arrow by holding clips on both sides by clips or pins 2 provided on the connecting pieces mounted on the pair of left and right endless tenter chains 1, 1. And apply tenter treatment.

The present invention relates to a drive device for the pair of left and right tenter chains 1, 1. The pair of left and right tenter chains 1 and 1 are wound around the front and rear chain wheels 3 and 3 in the same manner as in the prior art so that they can travel freely. However, as shown in FIG. Movable parts 4 such as conductors and back yokes are continuously attached at appropriate intervals, and an appropriate number of stator parts 5 such as electromagnetic windings in a linear motor are attached to the movable parts 4 in the moving direction of the tenter chain 1. Along the line, for example, a rail of the tenter chain 1 or other fixing member is arranged.

In the illustrated example, four stator portions 5 are provided on each of the forward and backward ends of each of the left and right endless chains 1 on the forward path side and the backward path side, but the invention is not limited to this. It may be provided only on one side of the forward path or the return path of the chain, and the position and the number of installations thereof are arbitrary. By distributing the installation positions, the driving positions of the linear motors are distributed and the chains act at each driving position. The load is reduced and the number of the stator portions 5 installed can be increased or decreased according to the driving ability.

Reference numeral 6 in the figure shows a drive control panel of the linear motor.

[0011]

According to the present invention, since the tenter chain in the tenter device is driven by the linear motor, a complicated transmission mechanism is required to convert the rotation of the drive motor into the linear motion as in the conventional means. Therefore, the driving device can be remarkably simplified, and the driving capacity can be easily dealt with by increasing or decreasing the number of stators of the linear motor, and the position of the driving unit can be freely set. The dispersion has the effect of reducing the load acting on the chain at the drive position.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention.

[FIG. 2] (a) An enlarged plan view of a main part, and (b) A side view of the same.

FIG. 3 is a plan view of a conventional device.

[Explanation of symbols]

1 Tenter chain 4 Linear motor mover 5 Linear motor stator

Claims (1)

[Claims] 1. A linear motor is provided in each of a pair of left and right tenter chains holding both edge edges of a sheet-shaped substrate in a tenter that holds both edge edges of the sheet-shaped substrate and continuously moves at a predetermined speed. Of the linear motor main body are continuously attached at appropriate intervals, and an appropriate number of stator parts of the linear motor main body are arranged at appropriate positions of the fixing members in the tenter device along the moving direction of the tenter chain so as to face the mover parts. A tenter drive device characterized by being installed.