JPS5870729A - Rope steel machine having heat treatment apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a P-P steel manufacturing company having a heat treatment device, and more specifically, the present invention relates to a heat treatment device that utilizes steam sealed in a hermetically sealed container. Concerning the characteristic Riip rope making machine.

Conventionally, sheep has been heat-treated by so-called dielectric heating, in which a high-frequency electric field is applied after strands are formed into twisted ropes.

The purpose of heat treatment is to eliminate the repulsive force caused by twisting inside the rope, prevent it from deforming and kinking, increase its flexibility, and suppress deterioration over time. By heating the material to a temperature slightly below the softening point of the material, the direction of molecular arrangement is changed to twist.
The idea is to correct the twisted state so that it is a natural state for the molecular arrangement of p-p, and then cool it and fix it in that state to eliminate the repulsive force. Note that ``kink'' refers to a situation in which the strands that make up the beam are twisted by the repulsive force caused by twisting due to rapid expansion and contraction of the rope.

However, although dielectric heating is highly effective in generating heat for materials such as nylon, which has a relatively large loss coefficient, it generates almost no heat for materials such as polyolein-based materials, which have a very small loss coefficient. For lyolefin-based materials, attempts have been made to add water with a very large loss coefficient, make the water heat up by dielectric heating, and use the heated water to heat the rope, but this method was not successful by applying a high-frequency electric field. It was extremely difficult to raise the pressure between the electrodes above atmospheric pressure. This is because the part that guides the rope between the electrodes and the part that guides the rope outside between the electrodes after heat treatment must be opened. Therefore, the water temperature can be raised above too degrees Celsius, and since this temperature of too degrees Celsius is four degrees below the softening point of polyolein-based materials, such as polypropylene, hardly any effect of heat treatment can be expected. Moreover, uniform heat treatment could not be expected due to uneven adhesion of water.

The present invention has been made in view of the drawbacks of conventional heat treatment, and it provides a heat treatment device that can carry out effective heat treatment by using steam, and the heat treatment device can be used in a rope netting machine. The present invention provides an a-pull netting machine that can continuously produce effectively heat-treated rope from strands.

That is, the present invention includes a closed container (9) containing steam αQ;
An introduction labyrinth or introduction cylindrical pipe connected inside the container (9) to seal the part where the rope (6) is introduced into the container (9), and the rope (6) from inside the container (9). The lead-out labyrinth 110' or lead-out cylindrical pipe connected to the container (9) in order to seal the part where the water is led out, and the rope (6) between both labyrinths or both cylindrical pipes are kept under tension to the extent that they do not loosen. In order to progress while
A sealed 7-nt capstan rule (7) installed near the entrance of υ or introduction cylindrical pipe - and a rear capstan roll (7) installed near the outlet of outlet labyrinth 60' or outlet cylindrical pipe -' This is a rope net making machine characterized in that a heat treatment device equipped with ' is installed between a pitch voice (5) and a sounding device 0, similar to a p-rope rope making machine.

The present invention will be explained below with reference to the drawings.

FIG. 1 shows a heat treatment device, and FIGS. 2 and 3 show a rope netting machine incorporating the heat treatment device.

The rope is made by twisting several strands, but the steel making machines shown in Figures 2 and 3 are used to make rope (6) from three strands (2). It represents.

Immediately, from each of the three strand coils (1) around which the strands (2) are wound, which are set on each of the three strand bobbins (3) of the net making machine, the strip land (2) is drawn from the cylinder (4). After being guided through the inside of the outer periphery, they are gathered in one place at the pitch voice (5),
As the cylinder (4) rotates, each strand (2) is twisted into a single loop (6) at the pitch voice (5) and wound around a seven-piece capstan marl (7). At this time, due to the rotation of the cylinder (4), twisting also occurs in the opposite direction, that is, in the direction of the strand coil (1), but this is because the strand (2) is previously twisted in the opposite direction to the twisting of the rope (6). 0 p wound around the front capstan rule (7)
-Pull (6) then passes through the introduction part (8) consisting of a labyrinth I- or a cylindrical pipe (1) to a closed container (9) containing steam αQ (hereinafter this closed container (9) is referred to as "steam steam"). is guided into the heating tube (9).

The labyrinth branch 6η' is a device that performs sealing by utilizing a narrow curved gap, and a cross-sectional view of an example thereof is shown in FIG. That is, the steam (2) in the steam heating tube (9) is sealed by a large number of constrictions (2) provided in the cylinder. Therefore, the greater the length of the labyrinth entry p', the better the sealing effect of the steam head. However, increasing the length of the labyrinth SOW means that the labyrinth
This means that the length of the part of the rope (6) that is inside ' will also increase, which means that the extent to which the rope (6) will sag due to its own weight will also increase. As is clear from the 4th vl, the diameter of the constricted part (2) of the labyrinth @1 is approximately equal to the diameter of the rope (6) in order to increase the sealing effect, so the degree of sagging of the rope (6) is large. In this case, the rope (6) and the constricted portion (2) of the telescope (V) come into contact with each other, and there is a risk that the rope (6) may be damaged.

Therefore, the length of the labyrinth must be determined taking into consideration two points: improving the sealing effect of the steam αQ and not damaging the four-piece (6).

In the case of Fig. 4, the labyrinth 〇w of 3II is connected by felt harakin (2).

Another way to improve the sealing effect of the labyrinth Oυmomi is to insert a nozzle (2) in the middle of the labyrinth ■t11)' as shown in Figure 4, and steam high-pressure air from the nozzle A/(to). There is also a method of suppressing the leakage of steam (2) by press-fitting it in the direction opposite to the leaking direction of steam (2), and another method is to suppress the leakage of steam (2) by press-fitting it in the direction opposite to the leaking direction of steam (2).
2) There is also a method in which the labyrinth 60 is sloped toward the steam heating tube (9) as it approaches the central axis of the nail.

As shown in FIG. 6, the cylindrical tube ``■'' is a hollow cylindrical tube whose inner diameter approximately matches the diameter of the beam (6). Like the labyrinth mu ev, this also aims to suppress the leakage of steam 4 from the part where the rope (6) is introduced into the steam heating pipe (9) or taken out, but the labyrinth mu ev is 11)' and has no constriction inside, the sealing effect of the steam αQ is inferior to that of the labyrinth (2)-'. Therefore, if the diameter of the rope is larger than a certain amount, it will not be left behind. However, the structure is simpler than the old nail, and it is easy to manufacture, so it can be obtained at a low price. (
6) If the diameter is small, it is more economical than using a labyrinth anw.

In the case of cylindrical tube 1', a nozzle is inserted in the middle in the same way as in the case of labyrinth@1, and high pressure air is steamed (1
By press-fitting in the direction opposite to the outflow direction of 0, the sealing effect can be improved.

In addition, the length of the cylindrical pipe 1' is determined by the sealing effect of the steam α0 and the hanging of the rope (6), as in the case of determining the length of the labyrinth *a ring' described above.
- The decision must be made taking into account two points: prevention of contact with the inner wall.

Incidentally, the steam aO leaking from the labyrinth entry 〇' or the cylindrical pipe @-' is exhausted through the first exhaust pipe α4.

Now, as described above, the tube (6) is guided into the steam heating tube (9) through the introduction labyrinth (see above) or the introduction cylindrical tube, and advances inside the steam heating tube (9). It is then subjected to heat treatment by steam αQ.

The time required for heat treatment is the time required for sufficient heat to be transmitted to the center of the p-p (6), and this is the time required for the heat to be sufficiently transmitted to the center of the p-p (6).
6) and the temperature of the steam αQ. For example, a rope (6) with a diameter of about 23
/d of saturated steam, at least 60
A time of about seconds is required. In the case of saturated steam, the temperature is uniquely determined by the pressure, for example 1 to 9/c.
The temperature of the saturated steam in d is 119.61'C. Note that the pressure is gauge pressure. Further, as the steam (l), heating steam that can obtain a high temperature at a relatively low pressure may be used.

The steam a1 is supplied by an air supply pipe connected to the steam heating pipe (9), and the pressure and temperature of the steam Q1 inside the steam heating pipe (9) are kept constant, thereby making it uniform. Enables uniform heat treatment. As mentioned above, since the heat treatment requires a relatively long time, it is necessary to lengthen the stay time of the rope (6) inside the steam heating tube (9). To do so, you need a rope (6
) and the steam heating tube (9).
It is preferable to move the p-pull (6) back and forth several times using guide rolls (b) inside the pipe.

The running speed is determined by the rotation speed of the front capstan roll (7) and the rear capstan roll (7f, which will be described later).The rotation speed of the rear capstan rule (7)' is determined by the rotation speed of the front capstan roll (7) and the rear capstan roll (7f, which will be described later). In consideration of shrinkage in step 6), the rotation speed must be slightly slower than the rotation speed of the fumanto capstan roll (7).

The rope (6) that has been heat-treated in this way has a lead-out section <s
y to the outside of the steam heating tube (9), and the rear
The moisture that adheres to the capsuta is removed by p-
After being evaporated by its own residual heat, it is wound up by the winding device α.

As described above, by the rope netting machine according to the present invention,
The rope (6) that has been heat-treated is made into rope.The advantage of the four-pronged net structure according to the present invention is that it incorporates a heat treatment device that utilizes heating by steam exhalation.

In other words, heat treatment equipment that uses steam (l) is similar to equipment that uses dielectric heating, and can heat even materials with a small loss coefficient, and steam heating allows arbitrary temperature settings by changing the pressure. Therefore, high temperatures can be easily obtained, and the heat exchange efficiency is also high, making it possible to perform uniform heat treatment without unevenness.

In addition, by incorporating such a heat treatment device into a net making machine, the heat treated rope (6) can be transformed into a strand (2).
Since the rope is manufactured continuously from the start, work efficiency can be achieved.

In addition, it is easy to change the diameter of the labyrinth or cylindrical tube used for the introduction part (8) and outlet part (8)' to match the diameter of the sheep (6), so any thickness can be used. Another advantage is that the rope (6) can be made with a diameter of .

[Brief explanation of drawings]

Fig. 1 is a front view of the heat treatment device, Fig. 2 is a plan view of the net making machine incorporating the heat treatment device, No. 311 is a front view of the net making machine incorporating the heat treatment device, and symbols in Fig. 4 Description 1...Strand coil 2...Strand 3...
・Strand bobbin 4...Cylinder 5...Pitch voice 6...Rope 7@...Flint-capstan roll 7'...Rear capstan roll 8...Introduction part゛81...Introduction labyrinth feather ...Introduction cylindrical tube 8'...Outlet part 81'...Output labyrinth Rib'...Output cylindrical tube 9...Steam heating tube 10...Steam ■...Guide roll Ru...
・Aperture part holder...Nozzle 14...Exhaust tube easy...Fel F packing 16・φ・Rewinding device 1
7...Air supply pipe

Claims (1)

[Claims] A sealed container filled with vapor, an introduction labyrinth connected to the sealed container for sealing the part where the o-p is introduced into the container, and a pipe for leading out the inside of the container. A lead-out labyrinth is connected to the container to seal the area where the labyrinth is to be moved, and a front capstan whirl is installed near the entrance of the lead-in labyrinth in order to keep the rope between both labyrinths under tension to the extent that it does not loosen. A rope net making machine characterized in that a heat treatment device equipped with a rear capstan roll installed near the exit of a lead-out labyrinth is installed between a pitch voice and a winding device of the rope net making machine. 2. A sealed container filled with steam, an introduction cylindrical pipe connected to the container to seal the part from which the rope is introduced into the container, and a part connected to the container to seal the part from which the rope is led out from inside the container. In order to proceed while maintaining the lead-out cylindrical pipe and the bond between both cylindrical pipes in a state of tension to the extent that it does not loosen, a capstan rule was installed near the entrance of the lead-in cylindrical pipe, and a A rope net making machine characterized in that a heat treatment device equipped with a rear capstan roll installed near an exit is installed between a pitch voice and a winding device of the rope net making machine.