JPS61186590A - Apparatus for heat treatment of rope - 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 (Field of Industrial Application) The present invention relates to a rope heat treatment device that heat-treats a rope after twisting a plurality of strands into one rope. It is related to.

(Prior Art) A conventional heat treatment apparatus of this type is, for example, a rope made by twisting a plurality of strands, as shown in Japanese Patent Application Laid-open No. 70728/1983.

There is a structure in which the material is heated by being passed through a steam chamber while being kept under tension to the extent that it does not loosen. and,
In this conventional heat treatment equipment, a leak prevention device such as a labyrinth is provided at the rope inlet and outlet of the steam chamber to reduce leakage of steam in the steam chamber to the outside from the rope inlet and outlet. It is configured as follows.

(Problems to be Solved by the Invention) However, even with the above configuration, leakage of steam from the rope inlet and outlet of the steam chamber cannot be completely prevented, and the ropes entering the steam chamber cannot be completely prevented from leaking. Steam leaks from the inlet and outlet of the rope as the rope is put in and taken out. Therefore, in order to constantly maintain the steam temperature and pressure in the steam chamber suitable for heat treatment of ropes, steam at a temperature and pressure considerably higher than the above-mentioned optimum values must be continued in anticipation of steam leakage to the outside. The problem was that it was extremely uneconomical.

(Means for Solving the Problems) This invention has been made in view of the above problems, and has an inlet and an outlet for the rope, and has a rope at a predetermined temperature and pressure inside. a main steam chamber in which steam is sealed and a rope passing through the main steam chamber is heated in a steam atmosphere;
An auxiliary steam chamber is formed around the main steam chamber, and is filled with steam at a higher temperature and higher pressure than the steam in the main steam chamber to heat and maintain the steam in the main steam chamber at a predetermined temperature. (Function) Therefore, in the rope heat treatment apparatus of the present invention,
There is no need to continuously supply high-temperature, high-pressure steam into the main steam chamber where the rope enters and exits through the lobe inlet and outlet, and only relatively low-temperature, low-pressure steam is supplied. The steam is heated and maintained at a temperature suitable for rope heat treatment using high-temperature, high-pressure steam in a sealed auxiliary steam chamber, making it possible to economically perform rope heat treatment.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Now, FIG. 2.3 shows a net making machine equipped with the rope heat treatment apparatus of this embodiment. A cylinder (2) is supported rotatably around a horizontal axis on the left side of the base (1) of this net making machine, and a pitch voice (3
) are provided. One strand bobbin (4) is supported on the base (1) on the left side of the cylinder (2), and two strand bobbins (4) are supported inside the cylinder (2). A strand coil (8) formed by winding a strand (5) made of synthetic resin such as polyolefin is set on the bobbin (4).

Then, the 3 strands pulled out from each strand bobbin (4)
The wooden strands (5) are guided through the cylinder (2) to the pitch voice (3), and as the cylinder (2) rotates, they are twisted together at the pitch voice (3) to form one rope (7). ).

On the right side of the pitch voice (3), a front capstan roller (8), a heat treatment device (3), and a rear capstan roller (10) are arranged on the base (1). Then, as mentioned above, 3 wooden strands (5
) is wound around the front capstan roller (8) several times and then introduced into the heat treatment device (9) where it is heated to a predetermined tension. It is heated with steam while being maintained in this state. Further, the rope (7) led out from the heat treatment device (9) is wound around the rear capstan roller (10) multiple times to evaporate adhering moisture using the residual heat of the rope (7) itself. After that, it is taken out of the net making machine as a product.

Therefore, the details of the heat treatment device (9) are explained in Section 1.4.5.
This will be explained in detail according to the drawings.

Now, in this device, the main steam chamber (
13) is formed, and a rope (7) is formed on both end plates (12).
) is formed with an inlet (10) and an outlet (15).The inlet (10) has an inlet labyrinth (16).
), and an outlet labyrinth (17) is provided at the outlet (15) to prevent steam in the main steam chamber (13) from leaking to the outside from the inlet (14) or the outlet (15). It is designed to reduce the amount of Main steam room (13)
A pair of steam ejection pipes (18) are installed in the upper part of the main steam chamber (1).
3), and a large number of steam ejection holes (18a) are formed at predetermined intervals in the longitudinal direction on its outer periphery. Each steam jet 'I? (18
) is connected to a steam supply pipe (18) via a branch pipe (20), and from this steam supply pipe (work 8) a steam jet pipe (18) is connected.
) Steam at a predetermined temperature and pressure is supplied into the main steam chamber (I3) through the main steam chamber (I3).

A cylindrical enclosure (21) is provided on the outer periphery of the outer shell (11).
is fixed, and the main steam body (1
3), a sealed auxiliary steam chamber (22) is defined. A steam supply port (23) is formed approximately in the center of the outer periphery and side surface of the enclosure (21), and a steam supply pipe (24) is connected to the auxiliary steam chamber (22) via this steam supply port (23).
Steam at a higher temperature and higher pressure than the steam entering the main steam chamber (13) is supplied into the main steam chamber (13) to heat and maintain the steam within the main steam chamber (13) at a predetermined temperature. Incidentally, in this example, the pressure in the main steam chamber (13) is 0.5
Relatively low-pressure, low-temperature steam with a pressure of 3.5 kg/cm'' and a temperature of 110°C is supplied and sealed, and high-pressure, high-temperature steam with a pressure of 3.5 kg/cm'' and a temperature of 150°C is supplied and sealed in the auxiliary steam chamber (22). The main steam chamber (13)
127-1, the steam inside is suitable for heat treatment of rope (7)
It is designed to be heated and maintained at 28°C.

As shown in Fig. 1.4, safety valve connection ports (25) for the main steam chamber (13) are provided on both sides of the outer periphery of the outer shell (11).
A heat-sensitive port (26), a pressure gauge mounting port (27), a thermometer mounting port (28), and a cold air blowing port (29) are formed to protrude through the enclosure (21), and are formed in the outer shell (11). A drain port (30) for the main steam chamber (13) is formed protruding through the enclosure (21) on the lower surface of the outer periphery. Furthermore, on both sides of the outer periphery of the enclosure (21), there are a safety valve connection port (31) for the auxiliary steam chamber (22), a heat-sensitive port (32), a pressure gauge installation port (33), and a thermometer installation port (30). In addition to being formed protrudingly, an auxiliary steam chamber (2
A drain port (35) for 2) is formed in a protruding manner.

In the main steam chamber (13), support frames [3B] are attached to the inner surfaces of both end plates (12), respectively. A pair of roller support shafts (37) are installed and supported between the side plates (38a) of each support frame (3B) so as to extend in parallel in the front-rear direction. Both front and rear ends of each support shaft (37) are connected to both side plates (38) of the support frame (3B) via a plurality of bearing members (38).
a) rotatably supported and their bearing members (3B)
is arranged in an isolated and sealed state in the main steam room (13).

That is, each bearing member (38) includes a cylindrical body (38) that is fixed through the side plate (38a), as shown in FIG.
An outer lid body (41) is attached to the outer end of the cylindrical body (39) via a seal (40), and a pair of seals (42), (43) are attached to the inner end of the cylindrical body (39). and an inner lid body (45) attached via a spacer (44) to form a hermetically sealed structure. Two (11) needle bearings (4B) are interposed between the inner periphery of the cylindrical body (39) and the outer periphery of both ends of the roller support shaft (37). A thrust bearing (47) is provided between both end surfaces of the support shaft (37).
) is interposed with the ring (48). Therefore,
There is no risk of steam in the main steam chamber (13) entering the needle bearing (4B) or thrust bearing (47) of each bearing member (38), and these bearings (4B) and (47) will not rust. can be reliably prevented.

Each roller support shaft (37) has a plurality of shafts (5 in the embodiment).
2) guide rollers (48) are fitted at their central cylindrical metal (50) and arranged in a stacked manner with spacers (51) interposed therebetween. Moreover, a predetermined distance (
In the embodiment, a clearance (52) of about 0.3 mm) is provided, and each guide roller (49) has a support shaft (
relative rotation around the support shaft (37).
) can move in the left and right directions perpendicular to the axis. Then, from the introduction port (14) to the main steam chamber (13
) is sequentially reciprocated around a plurality of guide rollers (49) between a pair of left and right roller support shafts (37), and is led out from the outlet (15).

As shown in Figures 1 and 4, both roller support shafts (37)
The guide rollers (4) on both front and rear ends of the
9), six inspection holes (53) are formed on the outer circumferential surface of the outer body (11) to protrude through the enclosure (21), and a cover is provided at the outer end of the six inspection holes (53). A body (50) is removably attached via a seal body (55). Then, with the lid (50) removed and the inspection port (53) opened, the inspection port (53) is opened. and guide roller (
49) The upper rope (7) can be untangled, and the roller support shaft (37), bearing member (38), and guide roller (4B) can be inspected and replaced.

Hereinafter, the operation of the rope heat treatment apparatus configured as described above will be explained.

Now, in this device, relatively low temperature and low pressure steam is supplied and sealed in the main steam chamber (3) having a lobe inlet (10) and an outlet (15), and the auxiliary steam chamber (3) is sealed. 22), high-temperature, high-pressure steam is supplied and sealed in the main steam chamber (13), and the steam in the main steam chamber (13) is heated and maintained at a temperature suitable for heat treatment of the rope (7).

The rope (7) introduced into the main steam chamber (13) from the inlet (10) of the main steam chamber (13) is connected to a plurality of guide rollers (49) between the pair of left and right roller support shafts (37). After being sequentially reciprocated, the rope (7) is led out from the outlet (15) and heat-treated by the steam in the main steam chamber (13).

At the initial stage of heating this rope (7), each guide roller (4
9) are rotated freely around the roller support shaft (37) to transfer the rope (7), and if the heat treatment of the rope (7) progresses and shrinkage occurs in the rope (7), , the guide roller (49) is drawn inward by the clearance (52) between the cylindrical metal (50) and the support shaft (37), and the cylindrical metal (50) and the support shaft (37)
are pressed against each other, and in this state, the guide roller (48) and support shaft (37) are rotated as a unit between the pair of bearing members (3 days), and the rope is transferred. Also, even during the heat treatment of this rope (7), the main steam chamber (13)
Since there is no large contraction in the rope (7) between the front guide rollers (49) located near the rope inlet (14), these guide rollers (49) are not drawn inward. , rotating support shaft (37)
It is free to rotate freely on its support shaft (37) independently of the Therefore, the guide roller (49) will not be locked due to contraction of the rope (7), and the rope (7) will not be locked.
) can be transferred smoothly.

In addition to the embodiments described above, the present invention can also be embodied by arbitrarily changing the shapes and configurations of the main steam chamber and the auxiliary steam chamber.

(Effects of the Invention) As detailed above, the present invention continuously supplies high-temperature, high-pressure steam in anticipation of steam leakage into the main steam chamber through which the rope enters and exits through the rope inlet and outlet. It is not necessary to supply steam at a relatively low temperature and low pressure, and the steam in the main steam chamber is brought to a temperature suitable for heat treatment of the rope by the high temperature and high pressure steam in the auxiliary steam chamber, which is in a closed state. The rope is kept heated, allowing economical heat treatment of the rope.

[Brief explanation of the drawing]

Figure 1 is a partial cross-sectional view showing a Ronip heat treatment device that embodies this invention, Figure 2 is a plan view showing the entire net making machine equipped with the heat treatment device, and Figure 3 is a steel making machine as well. 4 is a longitudinal cross-sectional view of the heat treatment apparatus shown in FIG. 1, and FIG.
The figure is a partial cross-sectional view showing an enlarged view of the configuration of the roller support shaft and the support shaft of the guide roller. Explanation of symbols 5... Strand, 7... Rope, 9... Heat treatment device, 13... Main steam chamber,! 4...Introduction port, 15
...Outlet, 22...Auxiliary steam room.

Claims (1)

[Scope of Claims] A main steam chamber having an inlet and an outlet for a rope, sealing steam at a predetermined temperature and pressure inside the main steam chamber, and heating the rope passing through the main steam chamber in a steam atmosphere; An auxiliary steam chamber is formed around the main steam chamber and is filled with steam at a higher temperature and higher pressure than the steam in the main steam chamber to heat and maintain the steam in the main steam chamber at a predetermined temperature. Rope heat treatment equipment featuring: