JP4228079B2 - Conveyor rail cleaning device - Google Patents

Description

  The present invention relates to a conveyor rail cleaning device that cleans iron powder accumulated on a conveyor rail, for example, in a trolley conveyor that conveys a work suspended on a hanger.

  Conventionally, a trolley conveyor is configured as shown in FIG. 11, for example. That is, in FIG. 11, the trolley conveyor 1 includes a conveyor rail 2, a trolley 3 having a traveling roller 3 a that rolls on the conveyor rail 2, and a hanger 4 for hanging a work supported by the trolley 3. , Is composed of.

The conveyor rail 2 is made of an iron material, and is laid along a work conveyance path. As shown in FIG. 12, a pair of rail members 2a having a "U" -shaped cross section with their inner sides facing each other open. , 2b.
The traveling rollers 3a of the trolley 3 are placed on the traveling surfaces 2c and 2d as inner lower surfaces of the rail members 2a and 2b, respectively, and roll on the rail members 2a and 2b. 3, and the hanger 4 moves along the conveyor rail 2.

As shown in FIG. 13, the trolley 3 is provided with two pairs of traveling rollers 3a arranged along the conveying direction, and stably moves on the traveling surfaces 2c and 2d of the conveyor rail 2 by these traveling rollers 3a. Can be done.
In the illustrated case, the hanger 4 is supported by two trolleys 3 arranged along the conveying direction, and holds the workpiece in a suspended state.

  Although not shown in the drawings, each trolley 3 is actually provided with a drive roller that rolls on a power rail disposed above the conveyor rail 2, and this drive roller runs on the power rail. By doing so, it moves along the conveyor rail 2.

  According to the trolley conveyor 1 having such a configuration, the hanger 4 is supported with respect to the conveyor rail 2 via the corresponding trolley 3 and the traveling roller 3a, and the traveling roller 3a is supported on each conveyor rail 2. By rolling on the running surfaces 2c and 2d of the rail members 2a and 2b, the rail members 2a and 2b move along the conveyor rail 2 to convey the workpiece.

  By the way, in the trolley conveyor 1 of such a structure, when the traveling roller 3a rolls on the traveling surfaces 2c and 2d of the rail members 2a and 2b of the conveyor rail 2, it is worn by friction. And as shown in FIG. 12, the iron powder 6 which generate | occur | produces by this abrasion will accumulate on the running surfaces 2c and 2d of each rail member 2a, 2b.

For this reason, if the iron powder 6 due to such wear accumulates on the running surfaces 2c and 2d of the rail members 2a and 2b as described above, the running rollers 3a are moved on the running surfaces 2c and 2d when the workpiece is conveyed. May cause the iron powder 6 to fall on the workpiece.
For this reason, the iron powder 6 accumulated on the running surfaces 2c and 2d of the rail members 2a and 2b is regularly cleaned manually by using, for example, brush, waste or the like. Accordingly, the number of man-hours is extremely increased and, for example, when the conveyor rail 2 is laid inside a sealed portion such as a drying furnace, the drying furnace or the like is disassembled for cleaning the conveyor rail 2. Due to the necessity, frequent cleaning work could not be practically performed.
As a result, the iron powder accumulated in the conveyor rail 2 falls on the work suspended from the hanger 4 when the hanger 4 is transported, thereby affecting the quality of the work.

On the other hand, in Patent Document 1, a magnetic roller is provided adjacent to the traveling roller, and iron powder generated by friction between the traveling roller and the conveyor rail is adsorbed by the magnetic roller when the hanger is conveyed, and the conveyor A rail cleaning device is disclosed which is adapted to be removed from the rail.
Japanese Patent Laid-Open No. 2002-220111

  However, in the rail cleaning device according to Patent Document 1, when the magnetic roller travels on the conveyor rail in a state where the iron powder is adsorbed, there is a possibility that the iron powder already adsorbed may be scattered on the conveyor rail. Further, since the magnetic roller always travels on the conveyor rail, friction is generated between the magnetic roller and the conveyor rail, and this friction causes wear.

  SUMMARY OF THE INVENTION In view of the above, the present invention provides a conveyor rail cleaning device that itself eliminates friction with the conveyor rail and removes iron powder only in a necessary section of the conveyor rail. The purpose is to do.

In order to achieve this object, the present invention is a conveyor rail cleaning device for cleaning iron powder generated when a trolley having a traveling roller travels on a conveyor rail, and is attached to the trolley via a connecting member, A housing having an iron powder adsorption surface made of at least a part of a magnetic material, a magnet rotatably disposed in the housing, and rotating the magnet so that the magnetization direction of the magnet is changed to the traveling surface of the conveyor rail. And a switching portion that switches to be vertical or horizontal with respect to the magnet, and a part of the lower region of the housing corresponding to the position of the magnet has a non-adsorbing surface of the non-magnetic material, and the housing is a conveyor rail. and the running surface is disposed at a predetermined distance above, mug switching unit is operated by a switch unit provided at a predetermined position of the conveyor rail Tsu DOO rotates so as to be vertical or horizontal to the running surface of the conveyor rail, when the magnetization direction of the magnet is parallel to the running surface of the conveyor rail, iron powder that has accumulated on the running surface of the conveyor rail It is characterized in that the iron powder is not magnetized and adsorbed on the housing when the magnet is magnetized and adsorbed on the iron powder adsorption surface of the housing and the magnet magnetization direction is perpendicular to the running surface of the conveyor rail.

  In the conveyor rail cleaning device according to the present invention, preferably, the housing is spaced upward by a predetermined distance from the running surface of the conveyor rail by a spacer.

  The trolley conveyor provided with the conveyor rail cleaning device according to the present invention is preferably configured such that when the magnetization direction of the magnet is perpendicular to the running surface, that is, in the section of the conveyor rail where the magnetic field lines of the magnet do not come out. A rail opening device and an iron powder removing device are provided below the rail.

Here, the rail opening device may be configured to open the conveyor rail to the left and right sides in the section, or configured as a comb-shaped rail portion provided on the traveling roller traveling surface of the conveyor rail in the section. May be.
The iron powder removing device preferably includes a rotating wire brush that contacts the lower surface of the housing through the gap between the comb-shaped rail portions from below and a vacuum suction device provided below the conveyor rail.

According to such a structure, the traveling roller of the trolley rolls on the conveyor rail, so that the hanger supported by the trolley is conveyed along the conveyor rail.
At that time, if the magnetizing direction of the magnet is parallel to the running surface of the conveyor rail by the switching unit, the magnetic field line passing through the magnet avoids a part of the lower region of the housing, that is, a non-adsorbing surface made of a non-magnetic material. Passes near the running surface of the conveyor rail. As a result, the iron powder due to wear scattered on the running surface of the conveyor rail is magnetically attracted to the iron powder attracting surface on the lower surface of the housing and removed from the running surface of the conveyor rail.

  Further, when the magnetizing direction of the magnet is perpendicular to the running surface of the conveyor rail by the switching unit, the magnetic lines passing through the magnet pass through the housing and do not pass near the running surface of the conveyor rail. Therefore, iron powder due to wear scattered on the running surface of the conveyor rail is not magnetically attracted to the iron powder adsorption surface on the lower surface of the housing.

  In this way, the conveyor rail cleaning device removes iron powder in a non-contact manner, preferably by being separated from the running surface of the conveyor rail by a spacer when the trolley moves on the conveyor rail. Thus, for example, even a sealed portion such as a drying furnace can be cleaned, and itself does not rub against the conveyor rail to generate iron powder due to wear.

  In addition, the magnet is rotated by the switching unit so that the magnetization direction of the magnet is switched to be perpendicular or horizontal with respect to the running surface of the conveyor rail, so that the magnet is on the conveyor rail only in a predetermined section of the conveyor rail. It is possible to perform a cleaning operation for removing the iron powder adsorbed on the conveyor rail cleaning device in a section of a so-called empty hanger line in which the iron powder is magnetically adsorbed and the hanger does not suspend the workpiece.

  Furthermore, the conveyor rail cleaning device can be easily additionally attached to an existing trolley, and may be attached to several trolleys instead of every trolley.

  When the switching unit is operated by a switch provided at a predetermined position on the conveyor rail and the magnet is rotated, the magnet on the empty hanger line of the conveyor rail is magnetically attracted to the iron powder adsorption surface on the lower surface of the housing by the magnet. The collected iron powder can be recovered.

  In the section where the magnetization direction of the magnet is perpendicular to the running surface of the conveyor rail, if a rail opening device and iron powder removing device are provided below the conveyor rail, for example, in an empty hanger line of the conveyor rail, The conveyor rail is opened by the rail opening device, and the iron powder magnetically attracted by the magnet is recovered from the lower surface of the housing of the conveyor rail cleaning device exposed by opening the conveyor rail by the iron powder removing device.

  When the rail opening device is configured to open the conveyor rail on both the left and right sides in the section, the lower surface of the conveyor rail cleaning device is exposed by opening the conveyor rail, and the magnet lowers the lower surface of the housing. Magnetically adsorbed iron powder is easily removed.

  When the rail opening device is composed of the comb-shaped rail portion provided on the traveling roller traveling surface of the conveyor rail in the section, the lower surface of the conveyor rail cleaning device is exposed from the gap of the comb-shaped rail portion. The iron powder magnetically attracted to the lower surface of the housing by the magnet can be easily removed.

  When the iron powder removing device is composed of a rotating wire brush that contacts the lower surface of the housing through the gap of the comb-shaped rail portion from below, the brush tip of the rotating wire brush passes through the gap of the comb-shaped rail portion. By contacting the lower surface of the housing, the iron powder magnetically attracted to the lower surface of the housing by the magnet can be forcibly removed by the rotation of the rotating wire brush.

The present invention will be described in detail below based on the embodiments shown in the drawings.
1 to 3 show a configuration of a trolley conveyor incorporating a first embodiment of a conveyor rail cleaning device according to the present invention.
In FIG. 1, a trolley conveyor 10 includes a conveyor rail 11, a trolley 12 having a running roller 12 a that rolls on the conveyor rail 11, and a hanger 13 for hanging a work supported by the trolley 12. It is configured.

The conveyor rail 11 is made of iron, and is laid along a workpiece conveyance path. As shown in FIG. 2, a pair of rail members 11a having a "U" -shaped cross section with their inner sides facing each other open. , 11b.
Then, the traveling rollers 12a of the trolley 12 are placed and rolled on the traveling surfaces 11c and 11d, which are the lower surfaces inside the rail members 11a and 11b, so that the trolley 12 and the hanger 13 are moved to the conveyor rail 11. It is designed to move along.

As shown in FIG. 3, the trolley 12 is provided with two pairs of traveling rollers 12a arranged along the conveying direction, and stably moves on the traveling surfaces 11c and 11d of the conveyor rail 11 by these traveling rollers 12a. Can be done.
In the illustrated case, the hanger 13 is supported by two trolleys 12 arranged along the conveying direction, and holds the workpiece in a suspended state.

  Each trolley 12 is actually provided with a driving roller 16 that rolls on a power rail 15 disposed along the conveyor rail 11 as shown in FIG. Each trolley 12 moves along the conveyor rail 11 by traveling on the power rail 15.

  The above configuration is the same as that of the conventional trolley conveyor 1 shown in FIGS. 11 to 13, but the trolley conveyor 10 according to the present invention supports at least a part of the trolley 12, in the illustrated case, the hanger 13. Among the trolleys 12 to be performed, the front trolley 12 has a different configuration in that it includes a conveyor rail cleaning device 20.

  2 to 4, the conveyor rail cleaning device 20 includes a housing 21, a magnet 22 supported in the housing 21, an on / off switching unit 23 that switches the magnet 22 to an on position or an off position, It is composed of

  As shown in FIG. 3, the housing 21 is attached to the trolley 12 via a connecting member 21 a at least one of the front and rear (rear in the case of illustration) with respect to the trolley 12 described above. As the trolley 12 moves in the arrow A direction, the trolley 12 moves so as to follow the trolley 12.

The housing 21 has a flat bottom surface and, as shown in FIG. 3, includes a pair of spacers 21b protruding downward from the bottom surface, and the rail members 11a and 11b of the conveyor rail 11 are formed by the spacers 21b. Are arranged at predetermined intervals on the running surfaces 11c and 11d.
As shown in FIG. 5A, each spacer 21b is formed in a long and narrow rectangular parallelepiped shape with resin. Further, as shown in FIG. 5B, a recess 21b1 is formed on the bottom surface of each spacer 21b that is in sliding contact with the running surfaces 11c, 11d of the rail members 11a, 11b. In addition, a through hole 21b2 is formed in the spacer 21b from the bottom of the recess 21b1 toward the upper surface of the spacer. A bolt 21b3 is inserted into the through hole 21b2 from the recess side, and the bolt 21b3 is inserted into a hole of the housing (not shown). The spacer 21b is attached to the housing by screwing. Here, each spacer 21b is attached to the housing 21 so that the longitudinal direction of the spacer 21b is along the longitudinal direction of the rail members 11a and 11b.
The housing 21 may be configured integrally with the spacer 21b.

  Further, as shown in FIG. 4, the housing 21 includes a laterally substantially cylindrical through-hole 21 c for receiving the magnet 22. In addition, the housing 21 includes only a part 21d of the lower region and a part 21e of the upper region corresponding to the position where the magnet 22 is disposed, and the other region is made of a magnetic material. Consists of materials. That is, the lower portion 21d is defined between the bottom surface 21f1 of the recess 21f and the inner surface of the through hole 21c when the recess 21f is formed on the bottom surface of the housing 21, for example, as shown in the figure. Area. Here, in the bottom surface of the housing 21, the portion other than the recess 21f is the iron powder adsorption surface 21g, and the bottom surface 21f1 of the recess 21f is the non-adsorption surface of the nonmagnetic material. Note that a part 21e of the upper region may be made of a magnetic material.

  The magnet 22 is formed in a flat plate shape, and is formed as a curved surface such that each end surface in the longitudinal direction can slide on the inner surface of the housing 21. Thus, the magnet 22 is disposed so as to be rotatable around its central axis in a state of being inserted into the through hole 21 c of the housing 21.

  Furthermore, as shown in FIG. 4, the magnet 22 is magnetized from one end face toward the other end face. In FIG. 4A, one end of the magnet 22 is magnetized to the N pole, and the other end is magnetized to the S pole. Thereby, the magnet 22 is rotated in the through hole 21c of the housing 21, so that the magnetized direction is in the horizontal on position (see FIG. 4A) and the vertical off position (see FIG. 4B). ) Can be switched to.

Here, in the ON position, as shown in FIG. 4A, the magnetic lines of force (shown by dotted lines) that pass through the magnet 22 go out from the lower surface so as to avoid a part 21d of the lower region of the housing 21, and the conveyor By passing near the running surfaces 11c and 11d of the rail 11, the iron powder 17 accumulated on the running surfaces 11c and 11d of the conveyor rail 11 is magnetically attracted to the lower surface of the housing 21, that is, the magnetic attracting surface 21g and removed. It is like that.
In the off position, as shown in FIG. 4B, the magnetic lines of force (shown by dotted lines) passing through the magnet 22 pass only inside the housing 21 and do not go outside. In this case, the iron powder 17 accumulated on the running surfaces 11c and 11d of the conveyor rail 11 is not magnetically attracted.

  As shown in FIG. 3, the on / off switching unit 23 includes a pair of levers 23 a and 23 b attached to the sides of the magnet 22, and these levers 23 a and 23 b are provided at predetermined positions on the conveyor rail 11. The pair of switch portions 11e and 11f are operated. Specifically, in FIG. 3, the trolley 12 moves on the conveyor rail 11 in the direction of arrow A, and the off lever 23 a of the on / off switching unit 23 contacts the off switch unit 11 e provided on the conveyor rail 11. Then, the off lever 23a is relatively swung by the off switch portion 11e. Thus, the magnet 22 rotates in the through hole 21a of the housing 21 and is switched to the off position.

  Further, in FIG. 3, when the trolley 12 moves on the conveyor rail 11 in the direction of arrow A and the on lever 23 b of the on / off switching unit 23 comes into contact with the on switch unit 11 f provided on the conveyor rail 11, the on lever 23b is relatively swung by the on switch 11f. Thus, the magnet 22 rotates in the through hole 21a of the housing 21 and is switched to the on position.

  Therefore, in FIG. 3, when the trolley 12 moves on the conveyor rail 11 in the direction of arrow A, the magnet 22 is automatically switched to the OFF position only during the section X. 22 can be switched to the ON position. Such a section X is preferably provided in a so-called empty hanger line in which the hanger 13 does not suspend and convey the workpiece.

  Furthermore, as shown in FIG. 6, the trolley conveyor 10 of the present invention includes a rail opening device 24 and an iron powder removing device 25. The rail opening device 24 shown in FIG. 6 includes drive means 24a and 24b that are separated from each other in the section X of the rail members 11a and 11b of the conveyor rail 11, and operates both of the drive means 24a and 24b. The rail members 11a and 11b of the conveyor rail 11 are moved away from each other so as to be separated from each other and opened.

  The iron powder removing device 25 includes: an introduction member 25a that is inclined downward from the lower side of the above-described rail opening device 24; and an iron powder receiver 25b that is disposed below the tip of the introduction member 25a. It is configured. As a result, the rail opening device 24 operates to open the rail members 11a and 11b of the conveyor rail 11, and when the magnet 22 is switched to the off position, the magnet 22 magnetically attracts the lower surface of the housing 21. The iron powder 17 is magnetically released and falls downward, slides down on the introduction member 25a, falls into the iron powder receiver 25b, and is collected.

  The trolley conveyor 10 according to the embodiment of the present invention is configured as described above, and the traveling roller 12a of each trolley 12 rolls on the conveyor rail 11, and each trolley 12 is supported and guided on the conveyor rail 11. At the same time, when the drive roller 16 travels on the power rail 15, the drive roller 16 moves along the conveyor rail 11 and conveys the workpiece along the conveyor rail 11.

  Here, when the magnet 22 of the conveyor rail cleaning device 20 is switched to the ON position, the lines of magnetic force passing through the magnet 22 avoid a part 21d of the lower region of the housing 21 as shown in FIG. Thus, it goes outside from the lower surface and passes near the running surfaces 11c and 11d of the conveyor rail 11. Thereby, the iron powder 17 collected on the running surfaces 11c and 11d of the rail members 11a and 11b of the conveyor rail 11 is magnetically attracted to the lower surface of the housing 21 by the magnet and is removed from the conveyor rail 11.

  Therefore, while the magnet 22 is in the ON position, the iron powder 17 accumulated on the running surfaces 11c and 11d of the rail members 11a and 11b of the conveyor rail 11 is attracted by magnetic adsorption as the trolley 12 moves. Removed. Thereby, for example, even if the conveyor rail 11 is laid in a sealed portion such as a drying furnace, the conveyor rail 11 can be automatically cleaned, and the conveyor rail 11 can always be kept clean.

On the other hand, when the trolley 12 enters the section X, the off lever 23a of the on / off switching unit 23 comes into contact with the off switch unit 11e provided on the conveyor rail 11 and swings, so that the magnet 22 is set to the off position. Can be switched. As a result, the magnetic lines of force (shown by dotted lines) passing through the magnet 22 do not come out of the housing 21, so that the iron powder 17 accumulated on the running surfaces 11 c and 11 d of the conveyor rail 11 is not magnetically attracted and is magnetically applied to the lower surface of the housing 21. The adsorbed iron powder 17 falls freely downward.
And the iron powder 17 which fell below passes through between each rail member 11a, 11b of the conveyor rail 11 open | released by the rail open | release apparatus 24, slides on the introduction member 25a of the iron powder removal apparatus 25, It falls into the iron powder receiver 25b and is collected.

  Therefore, for example, every time the trolley 12 makes a round along the conveyor rail 11, the iron powder 17 is collected in the section X, so that the iron powder 17 magnetically adsorbed on the lower surface of the housing 21 of the conveyor rail cleaning device 20 is collected. It is possible to prevent the iron powder 17 from being scattered on the conveyor rail 11.

  7 and 8 show a configuration example of a trolley conveyor 10 'according to another embodiment of the present invention. This trolley conveyor 10 'has a different configuration only in that a rail opening device 31 and an iron powder removing device 32 are provided instead of the rail opening device 24 and the iron powder removing device 25 in FIG.

In the above-described section X, the rail opening device 31 has a part of the running surfaces 11c and 11d of the rail members 11a and 11b of the conveyor rail 11 arranged in the front-rear direction as shown in FIG. It is configured as comb-shaped rails 31a and 31b.
Each of the comb-shaped rails 31a and 31b has a predetermined pitch in the lateral direction, and the comb-tip portion 31a1 of the front-side comb-shaped rail 31a and the comb-tip portion 31b1 of the rear-side comb-shaped rail 31b are aligned in the front-rear direction. They are laterally offset from each other so as not to align. In addition, instead of the comb-shaped rails 31a and 31b in which part of the running surfaces 11c and 11d of the rail members 11a and 11b are formed in a comb shape, as shown in FIG. 10, the running surfaces 11c and 11d of the rail members 11a and 11b are used. A plurality of elongated through holes 31c, 31d may be provided on the running surfaces 11c, 11d of the rail members 11a, 11b so that a part of the rails 11a, 11b has a lattice shape. Here, the two through holes 31d on the rear side are provided at a rear position of the gap between the three through holes 31c arranged in parallel on the front side, and the front through hole 31c and the rear through hole 31d are front and rear. They are laterally offset from each other so that they are not aligned in a row.

  The iron powder removing device 32 includes rotary wire brushes 32a and 32b disposed below the comb rails 31a and 31b, and a vacuum cleaner 33. The upper ends of the rotary wire brushes 32 a and 32 b protrude upward through the gaps between the corresponding comb rails 31 a and 31 b so that they can contact the lower surface of the housing 21. Then, the rotary wire brushes 32a and 32b are rotationally driven in the same direction as the rotation direction of the traveling roller 12a of the trolley 12 on the upper side by driving means (not shown).

  The vacuum cleaner 33 has its suction nozzle 33a opened upward so as to surround the lower region of the rotary wire brushes 32a and 32b, and the suction nozzle 33a is connected to a vacuum pump (not shown). Yes.

According to the trolley conveyor 10 ′ having such a configuration, when the magnet 22 is in the ON position, the magnet 22 is moved along the running surface 11 c of each rail member 11 a, 11 b of the conveyor rail 11, as in the conveyor rail cleaning device 20 described above. , 11d, the iron powder 17 collected on the surface 11d is removed by magnetic adsorption.
Further, when the magnet 22 is switched to the OFF position in the section X, the iron powder 17 magnetically attracted to the lower surface of the housing 21 is removed through the gaps between the comb-shaped rails 31a and 31b of the rail opening device 31. It is forcibly scraped off by the rotary wire brushes 32 a and 32 b of the device 32, falls downward, is vacuumed by the suction nozzle 33 a of the vacuum cleaner 33, and is collected.

In the above-described embodiment, the trolley 12 is moved along the conveyor rail 11 when the driving roller 16 is driven on the power rail 15. However, the trolley 12 is not limited to this, but by other driving means. Obviously, it may move.
Moreover, in embodiment mentioned above, although only the front trolley 12 which supports the hanger 13 is equipped with the conveyor rail cleaning apparatus 20 in the embodiment mentioned above, not only this but all the trolleys 12 have the conveyor rail cleaning apparatus 20 equipped. You may make it prepare.
In addition, the magnet 22 and the on / off switching unit 23 in the conveyor rail cleaning device 20 of the above-described embodiment are turned on / off by a rod-like connecting portion 22a protruding from the side surface of the magnet 22, as shown in FIGS. A rotating member 23c of the switching unit 23 is attached. The connecting portion 22 a is disposed along the axis of the rotation shaft of the magnet 22.
Furthermore, the rail member 11b is a slit 11b1 for passing the tip of the connecting portion 22a out of the rail along the moving direction of the conveyor rail cleaning device 20 so that the rail member 11b does not hinder the movement of the conveyor rail cleaning device 20. It has. In addition, when the rail member 11b is divided into two parts in this way, the divided members of the rail member 11b are arranged at predetermined positions, and therefore may be supported by a bracket or the like not shown.
Thus, when the on / off switching unit 23 is disposed outside the conveyor rail 11, the switch units 11e and 11f are fixed to, for example, the outer peripheral surface of the conveyor rail 11, that is, the outer surface of the rail member 11b. Attached.
Furthermore, in the above-described embodiment, as shown in FIGS. 2 and 7, the on / off switching unit 23 is disposed outside the rail member 11b, and the switch unit 11e is associated with the pair of levers 23a and 23b of the on / off switching unit. 11f is also illustrated as being fixedly attached to the outside of the conveyor rail, but the on / off switching portion 23 is accommodated inside the rail member 11b by reducing the dimensions of the pair of levers 23a, 23b and the rotating member 23c. At the same time, the switch portions 11e and 11f may be fixedly attached to the inside of the rail member 11b.

It is a schematic side view which shows the structure of the trolley conveyor provided with 1st embodiment of the conveyor rail cleaning apparatus by this invention. It is a partial enlarged front view which shows the principal part of the trolley conveyor and conveyor rail cleaning apparatus of FIG. It is a partial expanded side view which shows the principal part of the trolley conveyor and conveyor rail cleaning apparatus of FIG. It is a schematic sectional drawing which shows the (A) ON position and (B) OFF position of the magnet in the conveyor rail cleaning apparatus of FIG. (A) is a perspective view which shows the spacer which concerns on embodiment of this invention, (B) is the sectional view on the AA line of (A). It is a schematic front view which shows the structure of the rail opening | release apparatus and iron powder removal apparatus in the conveyor rail cleaning apparatus of FIG. It is a partial enlarged front view which shows the structure of the rail opening | release apparatus and iron powder removal apparatus in the trolley conveyor which concerns on other embodiment of this invention. It is a partial expanded side view which shows the rail opening apparatus and iron powder removal apparatus of FIG. It is a top view which shows the rail opening apparatus which concerns on embodiment of this invention. It is a top view which shows the other structural example of the rail opening apparatus which concerns on embodiment of this invention. It is a schematic side view which shows the structure of an example of the conventional trolley conveyor. It is a partial enlarged front view which shows the principal part structure of the trolley conveyor of FIG. It is a partial expanded side view which shows the principal part structure of the trolley conveyor of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,10 'Trolley conveyor 11 Conveyor rail 11a, 11b Rail member 11c, 11d Running surface 11e, 11f Switch part 12 Trolley 12a Running roller 13 Hanger 15 Power rail 16 Driving roller 17 Iron powder 20 Conveyor rail cleaning apparatus 21 Housing 21a Connecting member 21b Spacer 21b1 Recessed part 21b2 Through hole 21b3 Bolt 21c Through hole 22 Magnet 23 On / off switching part 23a Off lever 23b On lever 24 Rail release device 24a, 24b Drive means 25 Iron powder removal device 25a Introducing member 25b Iron powder receiver 31 Rail release device 31a31b Comb rails 31a1, 31b1 Comb tips 31c, 31d Through holes 32 Iron powder removal devices 32a, 32b Rotating wire brush 33 Vacuum cleaner 33a Suction nozzle

Claims (2)

A conveyor rail cleaning device for cleaning iron powder generated when a trolley having a traveling roller travels on a conveyor rail,
A housing which is attached to the trolley via a connecting member and has an iron powder adsorption surface made of at least a part of a magnetic material;
A magnet rotatably disposed in the housing;
A switching unit that rotates the magnet to switch the magnetizing direction of the magnet to be perpendicular or horizontal with respect to the running surface of the conveyor rail, and
A part of the lower region of the housing corresponding to the position where the magnet is disposed has a non-adsorbing surface of the non-magnetic material,
The housing is arranged at a predetermined interval upward from the running surface of the conveyor rail,
The switching unit is operated by a switch unit provided at a predetermined position of the conveyor rail, and the magnet is rotated so as to be vertical or horizontal with respect to the traveling surface of the conveyor rail.
When the magnetization direction of the magnet is parallel to the traveling surface of the conveyor rail, the iron powder accumulated on the traveling surface of the conveyor rail is magnetized and adsorbed on the iron powder adsorption surface of the housing,
The conveyor rail cleaning device, wherein the iron powder is not magnetized and adsorbed to the housing when the magnetization direction of the magnet is perpendicular to the running surface of the conveyor rail.   The conveyor rail cleaning device according to claim 1, wherein the housing is spaced apart from the running surface of the conveyor rail by a spacer by a predetermined distance.

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