JP2015186788A - Cleaning device for chain drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning device for a chain drive device which easily and sufficiently wipes a lubrication oil leaking on an upper surface of a side wall part of a guide rail without needing a worker to enter the chain drive device and inhibits failures caused by the lubrication oil in the chain drive device such as a stretch machine.SOLUTION: A stretch device 100 includes: a guide rail 110; a chain 114 running in the guide rail 110; and multiple clips 126 which are installed on the chain 114 so as to be exposed on the guide rail 110, and a lubrication oil is supplied into the guide rail 110 in the stretch machine 100. A cleaning device 1 for the chain drive device cleans the stretch device 100 and includes: a held part 10 held by the clip 126; and an upper surface wipe part 12 which is connected with the held part 10 and contacts with an upper surface 132a of a side wall part 132 of the guide rail 110 in a state where the held part 10 is held by the clip 126.

Description

  The present invention relates to a cleaning device for a chain drive device.

For example, the following are known as stretching machines that transport a sheet-like material such as a resin film while stretching in the width direction.
A clip installed on a pair of endless chains grips both end portions of the sheet-like material, and the endless chain is driven by a sprocket to convey the sheet-like material in the flow direction, and the distance between the opposing clips is increased. A so-called tenter-type transverse stretching machine (Patent Documents 1 and 2), which continuously stretches the product in the transverse direction (width extraction).

In such a stretching machine, an endless chain is fitted into a guide groove of a guide rail having a bottom portion and a pair of side wall portions that stand up from the bottom portion, and a clip is installed on the endless chain so as to be exposed from the guide rail. Is done. When the endless chain is driven by the sprocket and travels along the guide rail, the clip travels along the guide rail, and the sheet-like object gripped by the clip is conveyed.
Moreover, the sheet-like material to be conveyed is pulled in the width direction by gradually increasing the distance between the guide rails toward the downstream side. Further, hot air is blown onto the conveyed sheet-like material from above and below to heat the sheet-like material. Thereby, the sheet-like material is horizontally stretched while being conveyed.

  In addition, in the chain drive device such as the stretching machine, smooth movement of the endless chain and the clip, which suppresses the generation of metal powder due to wear due to sliding contact between members such as the guide rail, the endless chain, and the clip, For this purpose, lubricating oil is supplied into the guide rail.

JP 59-218820 A JP 59-48123 A

However, in a chain drive device such as the stretching machine, the lubricating oil supplied to the guide rail may adhere to the sheet-like material. When the lubricating oil adheres to the sheet-like material, problems occur in the subsequent process such as printing omission at the portion where the lubricating oil adheres.
When the present inventors examined the adhesion of the lubricating oil, during operation of the apparatus, the lubricating oil supplied into the guide rail gradually leaked to the upper surface of the side wall and reached the outer edge of the upper surface of the side wall. It was found that the lubricating oil was blown up by wind (hot air, etc.) and adhered to the sheet-like material.

  If the lubricating oil leaked to the upper surface of the side wall portion of the guide rail is sufficiently wiped off, it is considered that the lubricating oil can be prevented from adhering to the sheet-like material. However, in a chain drive device such as the stretching machine, the inside of the device is often narrow or the inside of the device is hot due to hot air or the like, and it is difficult for a person to enter the device and clean the guide rail. It is. In addition, when a person enters the apparatus for cleaning, it is necessary to stop the apparatus once so that the cleaner does not get injured.

  The present invention relates to a chain drive device such as a stretching machine, in which a chain and a clip installed on the chain travel along a guide rail supplied with lubricating oil, even if a person does not enter the guide rail. It is an object of the present invention to provide a cleaning device for a chain drive device that can easily and sufficiently wipe off the lubricating oil leaked to the upper surface of the side wall portion and suppress problems caused by the lubricating oil.

  The cleaning device for a chain drive device according to the present invention has a guide rail formed in a groove shape having a bottom portion and a pair of side wall portions rising from the bottom portion, and travels along the guide rail in the guide rail. A cleaning device having a chain and a plurality of clips installed on the chain so as to be exposed on the guide rail, and for cleaning a chain driving device to which lubricating oil is supplied into the guide rail, A gripped portion gripped by the clip; and an upper surface wiping portion connected to the gripped portion and in contact with the top surface of the side wall portion of the guide rail in a state where the gripped portion is gripped by the clip. It is characterized by that.

  In the cleaning device for a chain drive device according to the present invention, it is preferable that the cleaning device further includes an outer surface wiping portion that contacts an outer surface of the side wall portion of the guide rail in a state where the gripped portion is gripped by the clip.

  The cleaning device for a chain driving device of the present invention is a chain driving device such as a stretching machine in which a chain and a clip installed on the chain travel along a guide rail supplied with lubricating oil. Even if it does not enter, the lubricating oil leaked to the upper surface of the side wall portion of the guide rail can be easily and sufficiently wiped off, and problems caused by the lubricating oil can be suppressed.

It is the schematic diagram which showed schematic structure of the film extending machine. It is a fragmentary longitudinal cross-section which shows the principal part of the film extending machine of FIG. It is the perspective view which showed an example of the cleaning apparatus for chain drive devices of this invention. It is the fragmentary longitudinal cross-section which showed a mode that the cleaning apparatus for chain drives of FIG. 3 was attached to the film extending machine of FIG. It is the fragmentary longitudinal cross-section which showed a mode that the cleaning apparatus for chain drives of the other example of this invention was attached to the film extending machine of FIG.

<Film stretcher>
Hereinafter, as an example of a chain driving device to which the cleaning device for a chain driving device of the present invention (hereinafter, simply referred to as a cleaning device) is applied, a film stretching machine 100 illustrated in FIGS. 1 and 2 (hereinafter referred to as a stretching device). 100).
As shown in FIGS. 1 and 2, the stretching machine 100 includes a pair of guide rails 110, 112, a pair of endless chains 114, 116, sprockets 118, 120, 122, 124, and a plurality of clips 126, 126, And nozzles 160 and 162 for blowing hot air.
1, only a part of the plurality of clips 126, 126,... Is shown for convenience.

The endless chain 114 is driven by the sprockets 118 and 120 and travels along the guide rail 110 in the guide rail 110.
The endless chain 116 is driven by the sprockets 122 and 124 and travels along the guide rail 112 in the guide rail 112.

  The guide rail 110 has a bottom portion 128 and a pair of side wall portions 130 and 132 that rises facing the bottom portion 128, and is formed in a groove shape between the sprocket 118 that drives the endless chain 114 and the sprocket 120. Similarly, the guide rail 112 has a bottom portion 128 and a pair of side wall portions 130 and 132 that rises facing the bottom portion 128, and is formed in a groove shape between the sprocket 122 that drives the endless chain 116 and the sprocket 124. Yes.

  The clip 126 has a clip base part 134 attached to the endless chains 114 and 116, and a clip body 136 that is provided on the clip base part 134 and grips the film 200.

The clip base portion 134 penetrates the upper plate 138, the lower plate 140, the vertical plate 142 that connects the opposite ends of the upper plate 138 and the lower plate 140 on the side that holds the film 200, and the upper plate 138. 140 and a connecting pin 144 that is suspended so as to contact 140.
The clip main body 136 includes a pedestal portion 146 provided on the clip base portion 134 and a gripping portion 148 supported by the pedestal portion 146 and gripping the film 200 therebetween.

The clip 126 is fitted into the guide rails 110 and 112 with the endless chains 114 and 116 fitted inside the upper plate 138, the lower plate 140, and the vertical plate 142 of the clip base portion 134, and the clip main body 136 is guided. The rails 110 and 112 are exposed.
The connecting pin 144 suspended from the upper plate 138 to the lower plate 140 is inserted into the outer plates 114a and 116a, the rollers 114b and 116b, and the inner plates 114c and 116c of the endless chains 114 and 116.
Thus, the clip 126 is installed on the endless chains 114 and 116 so that the clip base part 134 is fixed to the endless chains 114 and 116 so as to be exposed on the guide rails 110 and 112.

  In the stretching machine 100, the endless chain 114 is driven by the sprockets 118, 120 and travels along the guide rail 110, so that a plurality of clips 126, 126,. Drive along. Similarly, when the endless chain 116 is driven by the sprockets 122 and 124 and travels along the guide rail 112, a plurality of clips 126, 126,... Installed on the endless chain 116 extend along the guide rail 112. And run.

The nozzle 160 is installed so as to be positioned above the film 200 held by the clip 126. The hot air is blown onto the film 200 from above the nozzle 160 so that the film 200 is heated.
The nozzle 162 is installed so as to be positioned below the film 200 held by the clip 126. The hot air is blown onto the film 200 from below the nozzle 162 so that the film 200 is heated.

  Lubricating oil is supplied into the guide rails 110 and 112. Thereby, during operation, metal powder is generated from a portion where the clip base portion 134 and the endless chains 114 and 116 are in sliding contact with the guide rails 110 and 112 and a portion where the members constituting the endless chains 114 and 116 are in sliding contact. Can be suppressed. Further, since the friction between the members is reduced, the endless chains 114 and 116 and the clip 126 can smoothly travel along the guide rails 110 and 112.

  Specifically, in this example, the guide rails 110 and 112 are continuously or intermittently provided in the guide rails 110 and 112 from the lubricating oil supply passage 150 formed at the upper part of the side wall 132 on the side where the film 200 is gripped. Is supplied with lubricating oil. In addition, a lubricating oil discharge path 152 for discharging lubricating oil is formed below the side wall 132 of the guide rails 110 and 112. The lubricating oil in the guide rails 110 and 112 is updated as needed by supplying the lubricating oil from the lubricating oil supply path 150 and discharging the lubricating oil from the lubricating oil discharge path 152.

The film 200 is stretched by the stretching machine 100 as follows.
As shown in FIGS. 1 and 2, the endless chains 114 and 116 are held by the sprockets 118, 120, 122, and 124 with the end portions on both sides in the width direction of the belt-like film 200 held by the grip portions 148 of the clip 126. Drive to run. Thereby, the film 200 is conveyed in the flow direction (α direction in the figure).
In addition, the pair of guide rails 110 and 112 are formed such that the distance between the pair of guide rails 110 and 112 gradually increases toward the downstream side, and the distance on the downstream side becomes wider than the distance on the upstream side. Therefore, the film 200 in which the end portions on both sides in the width direction are held by the clip 126 is pulled in the width direction (β direction in the drawing) while being conveyed in the flow direction. Furthermore, the film 200 to be conveyed is heated by blowing hot air from above and below from the nozzles 160 and 162. Thereby, in the stretching machine 100, the film 200 is continuously laterally stretched while being conveyed.

<Cleaning device>
Hereinafter, as an example of the cleaning device of the present invention, a chain drive device cleaning device 1 (hereinafter referred to as a cleaning device 1) that cleans the stretching machine 100 described above will be described.
The cleaning device 1 is a device that wipes off the lubricating oil leaked to the upper surface 132a of the side wall 132 on the side of the guide rails 110 and 112 of the stretching machine 100 where the film 200 is gripped.

  As shown in FIGS. 3 and 4, the cleaning device 1 includes the gripped portion 10 gripped by the clip 126 of the stretching machine 100, and the guide rails 110 and 112 in a state where the gripped portion 10 is gripped by the clip 126. It has the upper surface wiping part 12 which contact | connects the upper surface 132a of the side wall part 132, and the connection part 14 which connects the to-be-gripped part 10 and the upper surface wiping part 12. FIG.

The shape of the gripped portion 10 in this example is a flat plate shape.
The shape of the gripped portion 10 is maintained such that the gripped portion 10 is held by the clip 126 so that the upper surface wiping portion 12 is in contact with the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112. If it is. For example, the shape of the gripped portion 10 may be a columnar shape, a prismatic shape, or the like.
The shape of the gripped portion 10 is preferably a flat plate shape because the cleaning device 1 can be fixed more stably.

The number of gripped parts 10 is one in this example.
Note that the number of gripped portions 10 is 2 as long as the top surface wiping portion 12 is maintained in contact with the top surface 132a of the side wall portion 132 of the guide rails 110 and 112 by gripping with the clip 126. There may be more than one.

The material of the gripped portion 10 is maintained by gripping the gripped portion 10 with the clip 126 so that the upper surface wiping portion 12 is in contact with the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112. That's fine.
Examples of the gripped portion 10 include metals, resin molded bodies, natural resin or synthetic resin sponges, and the like. Among these, from the viewpoint of protection of the stretching machine, a resin molded body is preferable, and a heat resistant resin molded body is more preferable.

The shape of the upper surface wiping portion 12 in this example is a flat plate shape.
Note that the shape of the upper surface wiping portion 12 is maintained in a state where the upper surface wiping portion 12 is in contact with the upper surface 132 a of the side wall portion 132 of the guide rails 110 and 112 by gripping the gripped portion 10 with the clip 126. Any shape is acceptable. For example, the shape of the upper surface wiping portion 12 may be a columnar shape, a prismatic shape, or the like.
The shape of the upper surface wiping portion 12 is preferably a flat plate shape from the viewpoint that the contact area of the side wall portion 132 with the upper surface 132a can be easily increased and the lubricating oil leaked to the upper surface 132a of the side wall portion 132 can be easily wiped off.

  As in this example, when the pedestal portion 146 of the clip 126 extends to the side wall portion 132, the thickness of the upper surface wiping portion 12 is equal to the gap between the pedestal portion 146 of the clip 126 and the upper surface 132a of the side wall portion 132. It is preferable that they are equivalent. Thus, the upper surface wiping portion 12 inserted in the gap between the base portion 146 of the clip 126 and the upper surface 132a of the side wall portion 132 is more stably in contact with the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112. Maintained. Therefore, the lubricating oil leaked to the upper surface 132a of the side wall portion 132 can be easily wiped off.

  The number of the upper surface wiping portions 12 is one in this example, but may be two or more as long as the lubricating oil leaked to the upper surface 132a of the side wall portion 132 can be sufficiently wiped off.

The upper surface wiping portion 12 may be made of any material that can sufficiently remove the lubricating oil leaked to the upper surface 132 a of the side wall portion 132.
Examples of the upper surface wiping portion 12 include a natural resin or synthetic resin sponge, a core material (metal, resin molded body, etc.) wound with a cloth, and the like. Among these, a material obtained by winding a cloth around a core material is preferable from the viewpoint that the lubricating oil can be sufficiently wiped off.

The shape and material of the connecting portion 14 is such that the upper surface wiping portion 12 is maintained in contact with the upper surface 132 a of the side wall portion 132 of the guide rails 110 and 112 by gripping the gripped portion 10 with the clip 126. I just need it.
Examples of the material of the connecting portion 14 include the same materials as those described for the gripped portion 10, and the preferred embodiments are also the same.

  The manufacturing method of the cleaning device 1 is not particularly limited. For example, when the gripped portion 10, the upper surface wiping portion 12, and the connection portion 14 are made of a resin sponge, a known foam molding method or the like can be employed.

[Cleaning method]
During the operation of the stretching machine 100, the endless chains 114, 116 and the plurality of clips 126, 126,... Are running with the lubricating oil supplied into the guide rails 110, 112. The lubricating oil gradually leaks to the upper surface 132a of the side wall portion 132 of 110, 112. During operation of the stretching machine 100, hot air is blown from below the nozzle 162 to the film 200 to be stretched. Therefore, the lubricating oil leaking to the upper surface 132a of the side wall 132 of the guide rails 110 and 112 and reaching the outer edge of the upper surface 132a may be blown off by hot air and adhere to the film 200. If the lubricating oil adheres to the film 200, problems such as missing prints occur in the subsequent process.
Therefore, the stretching machine 100 is periodically cleaned using the cleaning device 1.

  When cleaning the stretching machine 100 with the cleaning device 1, first, the supply of the film 200 to the stretching machine 100 is stopped. Thereafter, the clip 126 is caused to grip the gripped portion 10 of the cleaning device 1 instead of the film 200 so that the upper surface wiping portion 12 of the cleaning device 1 contacts the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112. .

At least one cleaning device 1 is installed for each of the guide rail 110 and the guide rail 112.
The number of cleaning devices installed for one guide rail is preferably 1 to 5 and more preferably 2 to 3 per 10 m of the guide rail. If the number of the cleaning devices is equal to or greater than the lower limit value, the lubricating oil leaking to the upper surface of the side wall portion of the guide rail can be sufficiently wiped off. If the number of the cleaning devices is equal to or less than the upper limit value, the cleaning device can be easily installed and cleaning can be performed more easily.

  Thus, the cleaning device 1 fixed by the clip 126 so that the upper surface wiping portion 12 is in contact with the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112 is an endless chain driven by the sprockets 118, 120, 122, and 124. The vehicle travels with the clip 126 by traveling 114 and 116. At this time, the upper surface wiping portion 12 of the cleaning device 1 slides on the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112, and the lubricating oil leaked to the upper surface 132a of the side wall portion 132 is wiped off.

  Cleaning by the cleaning device 1 is performed until all of the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112 is wiped by the upper surface wiping portion 12 of the cleaning device 1. For example, when only one cleaning device 1 is installed for each of the guide rails 110 and 112, the cleaning device 1 is returned to at least the place where the cleaning device 1 is installed.

  As described above, the upper surface 132a of the side wall portion 132 of the guide rails 110 and 112 can be cleaned over the entire circumference, regardless of where the cleaning device 1 is installed in the guide rails 110 and 112. Therefore, the place where the cleaning device 1 is installed may be any place on the guide rails 110 and 112. Therefore, the installation location of the cleaning device 1 is set in the vicinity of the upstream sprockets 118 and 122 in the guide rails 110 and 112, etc., so that the cleaning device 1 can be easily installed without entering the stretching machine 100. . In addition, since there is no possibility that a person enters the inside of the stretching machine 100 and is injured, the driving of the endless chains 114 and 116 is not necessarily stopped once when the stretching machine 100 is cleaned.

  The timing for performing the cleaning is not particularly limited. For example, the cleaning can be performed when the supply of the film to the stretching machine 100 is stopped, such as when cleaning a mold disposed in front of the stretching machine 100.

If the cleaning device of the present invention described above is used, the inside of the guide rail supplied with lubricating oil leaks to the upper surface of the side wall portion of the guide rail in the chain drive device in which the chain on which a plurality of clips are installed runs. Lubricating oil can be sufficiently wiped off. As a result, defects in the post-process due to the lubricating oil are suppressed.
In addition, when the cleaning device of the present invention is used, even if the chain drive device cannot be easily entered by a person, such as when the inside of the device is narrow or when the inside of the device is hot, the side wall of the guide rail Lubricating oil leaking to the upper surface can be easily wiped off. Further, since it is not necessary for a person to enter the apparatus, cleaning can be easily performed even if the chain drive of the chain drive apparatus is once stopped or not stopped.

The cleaning device of the present invention is not limited to the cleaning device 1 described above.
For example, the cleaning device of the present invention may be the chain drive device cleaning device 2 illustrated in FIG. 5 (hereinafter referred to as the cleaning device 2). Parts in FIG. 5 that are the same as those in FIG.
The cleaning device 2 is the same as the cleaning device 1 except that it has an outer surface wiping portion 16 extending downward from the upper surface wiping portion 12.

  The outer side surface wiping portion 16 is in contact with the outer side surface 132 b of the side wall portion 132 in the guide rails 110 and 112 in a state where the gripped portion 10 is gripped by the clip 126.

The shape of the outer surface wiping portion 16 is maintained by gripping the gripped portion 10 with the clip 126 so that the outer surface wiping portion 16 is in contact with the outer surface 132 b of the side wall portion 132 of the guide rails 110 and 112. Any shape can be used. Specific examples of the shape of the outer surface wiping portion 16 include, for example, a flat plate shape, a cylindrical shape, and a prismatic shape.
As the shape of the outer side surface wiping portion 16, a flat plate shape is used because it is easy to increase the contact area of the side wall portion 132 to the outer side surface 132 b and the lubricating oil dripping on the outer side surface 132 b of the side wall portion 132 is easily wiped off. preferable.

  The number of outer side surface wiping portions 16 may be one or two or more as long as the lubricating oil dripping on the outer surface 132b of the side wall portion 132 can be sufficiently wiped off.

  The material of the outer surface wiping portion 16 may be any material that can be sufficiently removed by wiping off the lubricant dripping on the outer surface 132b of the side wall portion 132. For example, the same materials as those described for the upper surface wiping portion 12 may be mentioned. The preferred embodiments are also the same.

  In the cleaning device 2, the lubricant that has leaked to the upper surface 132 a of the side wall 132 of the guide rails 110 and 112 is wiped by the upper surface wiping unit 12, and the lubricant dripped on the outer surface 132 b of the side wall 132 is wiped from the outer surface. The part 16 can be wiped off simultaneously. Therefore, the malfunction resulting from the lubricating oil can be more stably suppressed.

  Moreover, the form of the cleaning apparatus of the present invention is not limited to the form of the cleaning apparatuses 1 and 2. For example, depending on the chain drive device to be cleaned, the form of the cleaning apparatus of the present invention may be a form in which the upper surface wiping portion and the outer surface wiping portion are directly connected to the gripped portion.

  Moreover, the chain drive device which the cleaning apparatus of this invention makes the cleaning object is not limited to the stretching machine 100 described above. For example, it may be a cleaning device used for cleaning a stretching machine having a pantograph-like unit as an endless chain, or may be used for cleaning a stretching machine capable of simultaneous vertical and horizontal biaxial stretching.

Moreover, the cleaning apparatus of this invention is good also as what cleans chain drive apparatuses other than a film stretcher. For example, the cleaning device of the present invention may be used for cleaning a chain driving device that does not include a stretching mechanism and that transports a sheet-like material.
Moreover, the cleaning apparatus of this invention is good also as what is used for cleaning of a chain drive device provided with an end chain.
Moreover, the cleaning apparatus of this invention is good also as what is used for the cleaning of the chain drive device which handles sheet-like objects (metal sheet, paper, nonwoven fabric, etc.) other than films, such as a resin film.

DESCRIPTION OF SYMBOLS 1, 2 Chain drive cleaning device 10 Grasping part 12 Upper surface wiping part 14 Connection part 16 Outer side surface wiping part 100 Stretcher 110, 112 Guide rail 114, 116 Endless chain 118, 120, 122, 124 Sprocket 126 Clip

Claims (2)

A guide rail formed in a groove shape having a bottom portion and a pair of side wall portions rising from the bottom portion, a chain running along the guide rail in the guide rail, and exposed on the guide rail And a plurality of clips installed on the chain, and a cleaning device for cleaning a chain driving device to which lubricating oil is supplied into the guide rail,
A gripped portion gripped by the clip;
A cleaning device for a chain drive device, comprising: an upper surface wiping portion that is connected to the gripped portion and is in contact with an upper surface of a side wall portion of the guide rail in a state where the gripped portion is gripped by the clip.   The chain drive device cleaning device according to claim 1, further comprising an outer surface wiping portion that contacts an outer surface of a side wall portion of the guide rail in a state where the gripped portion is gripped by the clip.

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