JPH01266264A - Heating unit for heat fusion of fabric and so on - Google Patents

Abstract

PURPOSE:To obtain the title unit readily attachable to a loom etc., by equipping a board casing of continuous length slightly longer than the weaving width with a heating unit with the front being a heating plate having arc-shaped longitudinal section and a thermal insulating layer housed at the rear side. CONSTITUTION:The objective heating unit detachably incorporated into e.g., a loom through the left and right bracket parts of a board casing 1 of continuous length slightly longer than the weaving width of a fabric 11 to be produced by a loom 10. Said casing 1 is fitted with, in the front, a metallic heating plate 2 having arc-shaped longitudinal section, the inside of said plate 2 being equipped with a heater and a thermosensor, while in the rear provided with a built-in a thermal insulating layer.

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention is applicable to heat-sealing of woven fabrics, non-woven fabrics, etc. using thermoplastic composite fibers for agricultural materials, industrial materials, interior uses, tufted base fabrics, etc. This invention relates to a heating device for heat fusion that can be attached to a YLT machine or the like when necessary.

<Prior Art> As a heating device used in the above-mentioned fields, oven dryers, hot rolls, etc., which have been mainly used in the textile industry, have been used as they are for heat fusing.

<Problem to be solved by the invention> Conventional oven dryers, hot rolls, etc.
When used for the purpose of fusion bonding, there are no problems with fusion performance, etc., but many issues remain regarding equipment costs, space, workability, running costs, etc.

For example, in terms of equipment costs, if an induction heating type hot roll is used to fuse a 4 m wide base fabric, it will be quite expensive. Further, it has the disadvantage that it consumes a large amount of electricity and has a high running cost. Additionally, oven dryers and hot rolls are too large to be assembled onto a loom, so it is necessary to install a winding device.
It was necessary to modify the equipment. Furthermore, even if the device is modified and installed on a loom or the like, the working space becomes narrow, resulting in poor workability. Furthermore, these conventional devices
For example, in the case of hot rolls, they weigh as much as 1 ton, making it difficult to move them once they are installed, and they cannot be deployed unless a production plan is carefully planned.

<Means for Solving the Problems> Therefore, the present inventor has studied various types of thermal F141 wearable heating devices that can be easily attached to looms etc. on which thermoplastic fibers are woven. A heating plate (2) whose front surface has an arc-shaped vertical cross section is attached to a slightly long plate-shaped casing (1).
), the heaters (3) (6) and the temperature sensor (4) are built inside the heater (3), (6) and the temperature sensor (4), and the heat insulating material layer (5) is built into the rear side.

The heaters referred to here include not only electric resistance types such as nichrome wire heaters, but also heating mediums such as B1-pipes (oil-based is used at high temperatures, and water can also be used when used at low temperatures of about 150°C). ) is also included.

A heating device for heat-sealing woven fabrics, etc. having such a structure uses thermoplastic composite fibers with a low-melting point polymer film laminated on one or both sides of a high-melting point polymer film as the warp and weft threads. After that, a low melting point polymer can be melted and fused, or a nonwoven fabric using a similar thermoplastic composite fiber can be thermally fused.

Since this device is in the form of a plate with a smaller volume than hot rolls, etc., it can be incorporated into the fabric passing surface of a loom. Therefore, it is low cost and moreover.

The purpose of heat fusion can be achieved by assembling it into an existing loom at a location that does not affect workability.

Furthermore, since it is a compact plate-shaped device and has a heat dissipation surface only on the front side, there is little heat dissipation loss and the heat efficiency is high.

<Example> Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a heating device for thermal fusion according to a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a second embodiment of the same.

FIG. 3 is a front view of the device attached to a loom, and FIG. 4 is a side view of the same.

As is clear from these numbers, one device is a loom (one
The elongated plate-like casing (1), which is slightly longer than the weaving width of the woven fabric (11) etc. woven by No. The elongated plate-shaped casing (1) is provided with a metal heating plate (2) having an arcuate vertical cross-section contact surface on the front surface, and in the example shown in Fig. 1, an electric resistance type heater (3) and a thermoelectric heater are installed inside the plate. A pair of temperature sensors (4) is provided. Furthermore, a heat insulating material layer (5) made of glass fiber is built into the rear side. In addition, in the second embodiment shown in FIG.
A pipe is provided as a heater (6).

Since such a heating device for heat fusion is plate-shaped as shown in FIG. 4, it can be assembled into a narrow space such as the woven fabric (11) passage surface of a loom (10). Its mounting structure is such that the upper part of the casing is supported by a mounting arm (13) provided horizontally from a mounting link (12) connected to the loom, and the lower part of the casing is supported by a mounting link (12) connected to the loom.
) of the suppression cylinder (14) attached to the telescopic arm (
19), it is in contact with the fabric when in operation and separates from it when stopped. When it is in contact with the fabric, it supports it while controlling the suppressing force.

<Effect of the invention> Actually weaving 4! A comparison of the use of a hot roll (induction heating type) and the apparatus of the present invention using TOVOD^-5ut, zttE weaving machine 153 inches shows the following results.

■Equipment cost Although hot rolls are expensive, the equipment of the present invention is extremely cheap at about 1,710 yen.

■Installation location and workability These will be explained with reference to the side view wB of the front part of the loom shown in 5th pages (a) to (d).

FIG. 5(Q) shows the state when no heating bag ml for normal heat fusion is provided. It can be seen that it is impossible to install a conventional hot roll between the fabric delivery press roller (15) and the lower roller (16) of the ya machine. Therefore, for example, if the lower roller (16) is installed with the first roll (17), the "1 working path (18) as shown in Fig. 5(b) will be larger than that in Fig. 5(Q). It becomes narrower by about half and is not practical.
When a winding device (17) is installed, the equipment is generally modified and installed in front of the winding device (19), as shown in FIG. 5(C). Still, it has a short point where the working passage (18) becomes narrow. and.

When a hot roll is provided in this manner, it takes a long time for the woven material to be fused, which poses a problem in that defects such as misalignment are likely to occur. However, as shown in FIG.
) and the lower roller (16), it can be installed on the woven fabric passage surface with the current equipment.

And one working passage (1B) remains sufficiently secured as in FIG. 5(a). Therefore, workability is also maintained well.

■Running cost When installing a conventional hot roll, electricity consumption is reduced by 1 in 5.
The running cost was about 7/llr, but when equipped with the device of the present invention, the running cost is 1.5 W/llr, which is about 173.

■Weight and Difficulty in Equipping Conventional Hora 1-Rolls weigh about 100 yen, and once installed, it is difficult to move them, and they can only be installed after considering the production plan, but the device of the present invention can be installed.

It weighs about 100 kg, so it can be easily moved. Furthermore, since it can be installed as needed, production planning becomes easier.

■Fusing properties of thermoplastic composite fibers and product quality In the case of conventional induction heating hot rolls, the temperature distribution within the effective width is ±1
．． Since the temperature is controlled within 5°C, products with good physical properties can be obtained when this is used.

According to the device shown in FIG. 1, which is the first embodiment of the present invention, the temperature distribution is ±5°C, which is inferior to a hot roll, but the device of the second embodiment shown in FIG. 2, which incorporates a heat pipe, has a temperature distribution of ±5°C. The temperature distribution was improved to ±2℃, and as shown in Table 1, the temperature distribution was almost the same as that of hot rolls.
A product with good physical properties can be obtained.

The following is a blank table. However, the woven fabric for which this physical property was measured was woven using 300 dr thermoplastic composite fibers for the warp and weft, with a weaving density of 6 yarns/inch in the warp and 6 yarns/inch in the weft. It is something.

As described above, thermal FA deposition using the present invention has greater advantages than using a hot roll. Even if there are some shortcomings in temperature control, the structure of the heater allows it to exhibit a surface temperature distribution similar to that of a hot roll, so there is no problem in terms of the physical properties of the product. When installing the device of the present invention, many problems such as productivity will arise if a new dedicated heat fusion stand is purchased or heat fusion is performed offline. A major advantage is that installation can be easily performed using equipment.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a heating device for thermal fusion according to a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a second embodiment of the same. Figure 3 is a front view of the device of the present invention installed on a loom;
FIG. 4 is a side view of the same. FIGS. 5(a) to 5(d) are schematic side views showing the front part of the loom. (1) Long plate-shaped casing (2) Metal heating plate (3)
(6) Heater (4) Temperature sensor (5) Heat insulation layer (10) Loom (11) Woven fabric
(17) More than hot rolls

Claims (1)

[Claims] 1 Long plate-shaped casing (1
) is equipped with a heating plate (2) whose front surface is an arc-shaped contact surface in longitudinal section, heaters (3) (6) and a temperature sensor (4) inside the heating plate (2), and a heat insulating material layer (5) on the rear side. A heating device for heat-sealing woven fabrics, etc., which is characterized by: