JPS62240210A - Oil supply method for tenter clip travailing rail - Google Patents

Abstract

PURPOSE:To reduce the generation of oil mist during oil supply for a tenter clip in a film lateral drawing machine, by forming oil feed holes in the roller running surface of a rail so that oil is fed through a constant volume distributor. CONSTITUTION:A valve element 40 in a constant volume distributor 39 is raised by pressurized oil fed from a pump unit which is not shown, lubrication oil reserved between the valve element 40 and a nipple 41 is fed onto the upper surfaces of both running rails 12, 13. The feed amount of oil at this time is determined by the stroke of the valve element 40, the supply and reserve of oil is repeated by the amount for every stroke of the valve element in association with the intermittent operation of the pump. With this arrangement, the lubrication oil sticks on vertical rollers 28, 29 while it sticks on horizontal rollers 30, 31 through the side face of running rollers. An excess of oil is recovered from the bottom section of a beam 11. With this arrangement it is possible to prevent oil mist from being generated.

Description

[Detailed Description of the Invention] [Technical Field to which the Invention Pertains] The present invention relates to a tenter clip device for a transverse stretching machine that grips a film or sheet (hereinafter referred to as a film) and stretches it in the width direction while running. A small amount of lubricating oil is forcibly supplied to the rollers from the underside of the running rail to ensure that the rollers are reliably lubricated, and by not supplying excess lubricating oil, the lubricating oil does not scatter and contaminate the film. This invention relates to a method of refueling a tenter clip running rail.

[Prior art] Conventional roller lubrication in a tenter clip device involves applying atomized micro-fog lubricating oil supplied from a micro-fog generating mechanism to a vertical roller mounted above the tenter clip device, directly above the vertical roller. The lubricating oil sprayed from the nozzle and attached to the vertical roller is transferred to the running rail as the vertical roller rolls on the running rail L, forming an oil film, while the lubricating oil attached to the upper surface of the running rail is transferred to the horizontal roller. This is done by flowing down.

The ideal way to lubricate the rollers of a tenter clip device is to continuously lubricate a very small amount so that an oil film is always formed.If a large amount is lubricated, most of the lubricating oil will scatter outside the roller. The micro fog lubrication system is ideal in this respect, but as clip running speeds have increased in recent years, wind pressure has caused oil mist to scatter, contaminating the running film and degrading its quality.

Furthermore, the micro-fog-like lubricating oil becomes difficult to adhere to the rollers due to the wind pressure during high-speed running, and especially at speeds of 250 m/min or more, the oil supply efficiency decreases significantly and there may be a shortage of oil supply. On the other hand, if the amount of oil supplied is increased, the pollution caused by oil mist will become more severe.

[Purpose of the Invention] The present invention has been made from this point of view, and its purpose is to provide a quantitative distributor for dispensing a small amount of lubricating oil so as to obtain substantially the same effect as when continuously supplying a small amount of lubricating oil. A method of supplying oil to tenter clip running rails in which the generation of oil mist is reduced by intermittently supplying oil from below the running rail to the upper surface of the running rail through the oil supply hole and ensuring that it adheres to the surface of the vertical rollers. Our goal is to provide the following.

[Summary of the Invention]' The method of lubricating the tenter clip running rail in the present invention is to provide a lubricating hole in the running surface of the roller of the running rail in order to apply lubricating oil directly to the roller of the tenter clip device, and Determine the lubricating oil supplied
It is characterized by supplying oil to the oil supply hole via a distributor.

[Embodiment of the Invention] Hereinafter, a description will be given of FIGS. 1 to 3 showing an embodiment of the present invention. In FIG. 1, a main running rail 12 and an auxiliary running rail 13 are fixed by bolts to a beam 11 extending in a direction perpendicular to the plane of the paper. The chain 714 has a chain case 15 and a chain link 16 connected together by a chain link connecting pin 17 to form an endless structure.

A clip body 21 is integrally formed on the first side of the chain case 15 or is fixed with bolts or the like.

A clip lever 22 is rotatably attached to the clip body 21 around a pin 23, and when the clip lever 23 is in the position shown in the figure by a leaf spring 24, the film 25 is held between the clip body 21 and the clip lever 22. There is.

A main vertical roller 28 rotatably supported by the clip body 21 is in contact with the upper surface of the main running rail 12.
An auxiliary Ik straight roller 29, which is coaxial with the main vertical roller 28 and assists the main vertical roller 28 to maintain running stability, is in contact with the upper surface of the auxiliary running rail 13. A pair of A horizontal rollers 30 that receive the stretching tension of the film 25 are in contact with the side surface relatively above the main rail 12 and on the side opposite to the clip lever 22, and on the lower side surface of the main rail 12 and on the side opposite the clip lever 22. A B horizontal roller 31 is in contact with the chain case 15, and this B horizontal roller 31 is rotatably supported by the chain case 15.

Lubrication for each roller is done by beam 1 as shown in Figure 1.
Attach two contacts 7'- and 36 to 1, and the tips of these are connected to the oil supply holes 37 and 38 provided in the seventh travel rail 12 and the auxiliary travel rail 13, respectively, and the population side of contact f36 is connected to the side. It is connected to quantitative distributors 39 provided at two locations, one on the film feed side and one on the exit side of the stretching machine.

The population side of the quantitative distributor 39 is connected to a pump unit (not shown), and when the pump is driven, the valve body 4 is
0 rises, and the lubricating oil stored between the valve body 40 and the nipple 41 above it is compressed and supplied to the upper surfaces of both traveling rails 12 and 13. The amount of oil supplied is determined by the stroke h1 of the valve body 40, but in this case, the amount of oil supplied for l operation is approximately 0. It is ICC. When the pump stops driving, the valve body 40
is pushed down by the spring 42, and its upper surface is filled with lubricating oil again. The pump is driven intermittently and the cycle is about 10 minutes, and the driving time for one dust is about 15 minutes.
Seconds.

The lubricating oil thus supplied to the upper surfaces of both running rails 12 and 13 adhered to both vertical rollers 28 and 29, while flowing down the side surface of main running rail 12 onto A horizontal roller 30 and B horizontal roller 31. Lubricating oil adheres, and excess lubricating oil collects on the bottom surface of the beam 11 and is collected. For the main vertical rollers 28 and auxiliary rollers 29, where even a small amount of lubricating oil is supplied, the lubricating oil scatters greatly, almost the entire circumference of the main vertical rollers 28 and auxiliary rollers 29 is covered except for the portions where they contact both running rails 12 and 13, as shown in FIG. Hi1 Mokubo 1F cover 46 in the shape of a tire house,
Its negative side is fixed to the clip main body 21 with a bolt,
The other side is supported by two washers 49 and a nut 50 at the end of a shaft 48 to which both vertical rollers 28 and 29 are fixed. Therefore, the lubricating oil that is scattered and turned into oil mist adheres to the inner surface of the scattering prevention cover 46, and then gradually flows down the inner surface and is collected.

The A horizontal roller 30 has both running rails 12 and 1 on both sides.
3, even if the lubricating oil is scattered, it flows down both traveling rails 12 and 13 and is collected. Also, B horizontal roller 3
1 is surrounded by the main running rail 12 on one side and the lower cover 51 fixed to the beam 11 on the other side, so it flows down the main running rail 12 and the lower cover 51 and is collected.

[Effects of the Invention] As explained above, the method of lubricating the tenter clip running rail in the present invention involves supplying a small amount of lubricating oil to the vertical roller from the oil supply hole of the running rail via the quantitative distributor. The generation of oil mist has been reduced, and since lubricating oil is reliably attached to the vertical rollers, smooth running is now possible even at high speeds. Furthermore, since there is no longer a nozzle for straightening the vertical rollers as in the prior art, it is possible to attach a scattering prevention force/<- to the stacked rollers, and from this point as well, there is an advantage that lubricant oil scattering prevention can be ensured.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a partially sectional side view, FIG. 2 is a side view, and FIG. 3 is a view taken in three directions of FIG. 1. 12...Main running rail, 13...Auxiliary running rail. 28... Main vertical roller, 29... Auxiliary traveling rail. 30...A water roller, 31...B horizontal roller. 37, 38...Oil supply hole, 39...Quantitative distributor.

Claims (1)

[Claims] In order to apply lubricating oil directly to the roller of the tenter clip device, a lubricating hole is provided on the running surface of the roller of the running rail, and the lubricating oil supplied from the pump unit is supplied to the lubricating hole via a quantitative distributor. A method of refueling a tenter clip running rail.