JPH0248449B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a conveyor rail dust collector, and more particularly to a conveyor rail dust collector used in a hanging conveyor or the like.

(Prior Art) The main causes of defective products in painting factories and the like include dust, see-through, dripping, etc. Of these, see-through and dripping are problems of coating technology, but these have become extremely rare due to improvements in technology and equipment and facilities. However, the problem of defective products caused by dust still remains a major obstacle in coating production. In particular, plastic coatings, which tend to generate static electricity, tend to attract floating dust, but are often required to have a thin film of around 10μ, which does not hide the attached dust.
The high defective rate is a major impediment to reducing production costs. The causes of this waste can be broadly divided into those inside the factory and those outside the factory. Regarding factors outside the factory,
The factory's production equipment has recently been put in place, and by using intake fans to ensure a supply air volume that exceeds the exhaust air volume by approximately 10%, the pressurization within the factory is maintained, preventing outside air from entering, and at the same time allowing outside air into the factory. During the process of drawing in, the air is purified using filters and cleaning equipment, making it possible to maintain a cleanliness level of around class 100,000, making it possible to create an environment that does not interfere with normal painting. , the cleanliness has improved. Regarding factors within the factory, the cleanliness of the working environment has been significantly improved by having workers wear dust-proof clothing and work shoes, and by thoroughly cleaning the floors.

(Problems to be Solved by the Invention) However, an unresolved problem in terms of dust prevention measures is the dust that falls from inside the transfer conveyor. Transfer conveyors, especially hanging type conveyors, are so-called universal conveyors in which a chain passes within a guide rail, but due to the structure of this type of conveyor, the lubricating oil of the chain may accumulate inside the guide rail, or the accumulated lubricating oil may Fine floating dust, paint mist, and fine metal powder generated by friction between the chain and guide rail adhere and accumulate on the surface. When the conveyor is operating, this dust falls in the form of powder from the groove formed at the bottom of the guide rail, which is a continuous opening through which hooks suspended from the conveyor pass, and adheres to the object to be coated, that is, the workpiece. This caused paint defects. In order to prevent this garbage, a cap-shaped cover is attached to the workpiece at the top of the hanger,
Next, a cover is placed near the hanger to prevent dust from adhering to the workpiece even if it falls. However, attaching a dust shield to a workpiece close to the conveyor requires time and effort to clean the dust guard from dirt caused by overmist. Furthermore, if you prepare and attach a jinka-like object according to the shape of the workpiece or the number of hangers, the effective coating range of the hanger will be narrowed by the size of the jinkasa, resulting in a decrease in the number of workpieces and a drop in productivity. have challenges.

The most effective way to address these issues is to clean the inside of the conveyor. However, the shape of the guide rail is almost U-shaped in cross section with narrow grooves, or openings, and the distance between the openings, or grooves, is extremely narrow. In practice, cleaning the entire length of the guide rail to be moved is difficult in terms of labor and effectiveness.

(Means for Solving the Problems) This invention provides a chain that connects a plurality of pieces and is fixed between the pieces of a chain that moves within a guide rail having an opening through which a hook can pass in conjunction with the movement of the pieces. A dust collecting pipe having a base communicating with the cavity and a tip protruding toward the inner lower surface adjacent to the opening of the guide rail with a gap between the pipes, and a dust collecting pipe having a base connected to the cavity. a dust collection pipe that communicates with the guide rail, passes through the opening of the guide rail, and has the other end communicated with the dust collection section;
A conveyor rail dust collection device characterized by comprising a dust collection section that takes in air from the dust collection pipe side, and a guide rail that connects a plurality of pieces and has an opening through which a hook that moves in conjunction with the movement of the pieces can pass. A space is provided between the hollow part of the chain that moves within the chain, which is fixed between the pieces, and the surface of the chain whose base communicates with the hollow part and whose tip faces toward the inner lower surface near the opening of the guide rail. a protruding dust collection pipe; a dust collection pipe whose base communicates with the cavity, passes through the opening of the guide rail, and whose other end communicates with the dust collection section;
It consists of a dust collection part that takes in air from the dust collection pipe side, and a replacement guide rail that can be opened using a bent part provided in the longitudinal direction of the guide rail on the side where a part of the guide rail has no openings as a fulcrum. We solve the conventional problems by providing a conveyor rail dust collector with the following characteristics.

(Operation) In the first invention, when the chain is driven, the pieces move in succession. The foot moves in conjunction with the movement of the pieces. The hollow portion fixed between the pieces also moves within the guide rail as the pieces move. As it moves, when air is taken in from the dust collection pipe side in the dust collection section, outside air is introduced through the dust collection pipe, the cavity, and the dust collection pipe. At this time, since the tip of the dust collecting pipe is directed toward the inner lower surface close to the opening of the guide rail, the dust and dirt that accumulates inside the guide rail together with the outside air are sucked out and collected in the dust collecting section. In addition, since the tip of the dust collecting pipe protrudes with a space between it and the inner lower surface, the dust collecting pipe does not come into contact with the guide rail and stir up dust. Since the chain revolves around the inside of the guide rail, the chain
By going around the guide rail, the inside of the guide rail is cleaned.

In the second invention, since a replacement guide rail that can be opened using a bent part provided in the longitudinal direction of the guide rail as a fulcrum is provided on a part of the non-opening part forming surface of the guide rail, the hollow part and the dust collecting part installation, inspection, repair, cleaning, etc.

In this way, these inventions utilize the characteristics that the chain circulates inside the guide rail and the chain moves inside the guide rail, and the normal operation of the conveyor can be directly used for dust collection work. Make use of it.

(Example) Fig. 1 showing a front sectional view of an embodiment of the invention of the first invention, Fig. 2 showing a sectional view of the same plane, and Fig. 1 A-
Fig. 3 showing cross-section A, Figs. 4 to 7 showing the same parts diagram, Fig. 8 showing a partial front cross-section of the dust collecting part in the installed state, Fig. 9 showing a front cross-section of the dust collecting part. , FIG. 10 showing the same plane, FIG. 11 showing a front cross section of the embodiment of the second invention, and FIG. 12 showing a partial cross section of the same plane.
The explanation will be made with reference to FIG. 13, which shows the cross section taken along line B--B in FIG. 11, and FIG. 14, which shows the opening state.

11 is a guide rail. Guide rail 1
1 is approximately U-shaped as shown in Figure 3,
The opening side is narrowed at the tip to form a groove-shaped opening 12. 11a and 11b are inner lower surfaces of the guide rail 11. 13 is a chain, and the vertical wheels 14 and horizontal wheels 15, which are pieces that make up the chain 13, are
It is constructed by alternately connecting via link plates 16. 17 is a hook connected to the longitudinal wheel 14, and 18 is a hanger supported between adjacent hooks 17, 17. A workpiece, which is an object to be painted, is secured to the hanger 18 . These guide rails 11, chains 13, etc. constitute a conveyor such as a universal conveyor, which has a required line length of several hundred meters or several tens of meters.

21 is a cavity. The cavity 21 is the third
As shown in Figure 4, which is a diagram and a parts diagram,
Although it has a flat cylindrical shape with an outer shape substantially similar to that of 4, it is of a size that does not contact the inner surface of the guide rail 11 even at the minimum polarity radius of the conveyor. The cavity 21 is made of metal, strong plastics, or the like, and has a hollow interior. The cavity 21 is shown in FIGS.
As shown in FIG. 5, which is a plan view of FIG.
An upper plate 22 and a lower plate 23 each having a circular shape.
are connected to the cylindrical side plate 24 by fitting a tool into a screw groove provided on the surface and screwing the plate into the cylindrical side plate 24. The top plate 22 is provided with two screw holes 25a and 25b as shown in FIG. The bottom plate 23 has three through holes 2 as shown in FIG.
6, a, 26b, and 26c are provided. The middle through-hole 26b is connected to the other through-holes 26a and 26c.
The area will be approximately twice as large. 27a, 27
b is a dust collecting pipe made of plastic or metal. The dust collecting pipes 27a and 27b have a tubular shape with an obliquely cut end, and as shown in FIG.
26c, and the tips are inserted into the inner lower surface 11 on the inner side of the lower surface of the guide rail 11 across the opening 12.
a, 11b and fix it with a space between it and the surface. 28 is a link plate. In this embodiment, the link plate 28 is made of cast material, and has an oval front face as shown in FIG.
As shown in FIG. 2, the plane has a circular shape having the same outer shape as the cavity in the center, and screw holes 29a, 29b.
will be established. As shown in FIG. 1, the link plate 28 supports the cavity 21 so as to sandwich it vertically, and is fixed to the cavity 21 with screws 30, 30. Both ends of the link plate 28 are connected to a link plate 31 for a longitudinal sheave that is fixed to the longitudinal sheave 14 of the chain 13 of an adjacent normal or existing conveyor.

32 is a dust collection pipe. The dust collection pipe 32 has a tubular shape, and its upper base is fixed to the through hole 26b provided in the cavity 21. A lower part of the dust collection pipe 32 is connected to a dust collection section 41 . The dust collection pipe 32 is made of a vinyl hose, and has joints 33a and 33 in the middle.
b, and by attaching and detaching both joints 33a and 33b, it is possible to easily attach and detach with both joints as boundaries. The dust collecting pipe 41 has a substantially cylindrical shape, and is fixed to and suspended from a hanger 18 supported by a hook 17. A turbo fan 4 is installed inside the dust collection pipe 41.
2. Motor 43 that drives the fan 42, Motor 4
A rechargeable battery 44 for driving the battery 3 is provided.
In this embodiment, the battery 44 is 1 to 4 mm/
It is possible to drive the fan 42 during one revolution of an endless conveyor of about 100 to 400 m, which moves at a speed of about min. A dust collection cylinder 44 is installed on the intake side of the fan 42.
is provided, and a dust collection bag 46 is held down from above by a dust collection bag pressing band 47 on the suction side to be easily replaced and fixed. The dust collection bag 46 is made of a mesh that absorbs all particles of 1 μm or more, and the amount of air exhausted does not interfere with the painting work. Reference numeral 48 denotes an air intake inlet into which the lower end of the dust collecting pipe 32 is fitted. Reference numeral 49 denotes a top lid, which is fastened to the top of the cylindrical dust collection box 51 by a fastening fitting 50. A battery 44, a motor 43, a fan 42, and a dust collection cylinder 45 are installed in the lower part of the upper lid 49 in this order.
0. Fix the dust collection bag 46. The dust collection box 51 is suspended by hangers 18, 18. The weight of the dust collecting section 41 is about 4 to 6 kg. 52 is
It is an exhaust port.

The hollow portion 21 is fixed with the link plate 28 in accordance with the second embodiment shown in FIGS. 11 to 14. That is, a part of the guide rail 11 is cut to a length of 200 to 400 mm, for example, and replaced with a replacement guide rail 61. Replacement guide rail 6
1 has almost the same structure as the guide rail 11 except for the length, but the replacement guide rail 61 has the same structure as the guide rail 11 on the side where the opening 12 is not formed,
In this embodiment, the upper part includes FIGS. 11 and 1.
As shown in Fig. 2 and Fig. 14, the bent portion 6 is formed in the longitudinal direction.
2 will be provided. The bending part 62 is formed of a hinge, and if necessary, the opening 12 can be opened wider using the bending part 62 as a fulcrum, as shown in FIG. 14. Then, in the open state, the hollow portion 21 is replaced with one of the transverse wheels 16 of an existing chain 13 or a conventional type of chain even if newly installed.

Reference numeral 63 denotes an insertion cover, which is placed over the replacement guide rail 61.

Next, the operation of this embodiment will be explained. In the embodiment shown in FIGS. 1 to 10, when the chain 13 is driven, a plurality of pieces consisting of the vertical wheel 14 and the horizontal wheel 15 move in succession. Hook 17 also moves as the pieces move. The hollow part 21 fixed between the pieces also moves as the pieces move.
It moves within the guide rail 11 in the same way as the horizontal wheel 14. At the same time as the movement, the turbo fan 42
is rotated by a motor 43. Then, start breathing,
When the dust collection section 41 takes in air from the dust collection pipe 32 side, outside air is introduced from the dust collection pipes 27a and 27b through the cavity 21, the dust collection pipe 32, the air intake inlet 48, the dust collection bag 46, and the dust collection tube 45. , and is again exhausted to the outside from the exhaust port 52. At this time, the dust collecting pipes 27a, 27
Since the tip of b is directed toward the inner lower part of the guide rail 11, the dust and dirt that accumulates inside the guide rail 11 along with the outside air are sucked away, and the dust collecting part 4
No. 1, the dust is collected outside the dust collection bag 46. Dust collection pipe 27
Since the tips of a and 27b are not in contact with the inner lower surface portions 11a and 11b of the guide rail 11, they do not stir up dust that accumulates there. Since the chain 13 goes around inside the guide rail 11, the inside of the guide rail 11 is cleaned by the chain 13 going around once while performing such work. When dust, dirt, etc. accumulate, use the dust collection box 5.
Remove and clean 1. Additionally, the battery 44 is charged.

In the embodiment shown in FIGS. 11 to 14,
Furthermore, since a replacement guide rail 61 that can be opened using a bent portion 62 provided in the longitudinal direction of the guide rail 11 as a fulcrum is provided on the part of the non-opening surface of the guide rail 11, the hollow portion 21 and dust collection It becomes possible to attach, inspect, repair, clean, etc. the part 41 and the like.

In this way, in these embodiments, the normal operation of the conveyor is controlled by utilizing the characteristics that the chain 13 circulates inside the guide rail 11 and that the chain 13 moves inside the guide rail 11. Use it as is for dust collection work.

(Effects of the Invention) These inventions utilize the characteristics that the cavity is incorporated into the chain of the conveyor, that the chain circulates inside the guide rail, and that the chain moves inside the guide rail. , the normal operation of the conveyor is used as is for dust collection work. In other words, paint obstacles such as metal powder generated inside the guide rail, metal powder mixed with oil, lumps of overmist during painting, and dust can be easily collected in the dust collection section by simply circulating the conveyor at the same time. Yes, and can be easily cleaned. Moreover, it does not stir up unnecessary dust.

In the second invention, a replacement guide rail that can be opened using a bent portion provided in the longitudinal direction of the guide rail as a fulcrum is further provided on a part of the non-opening surface of the guide rail to an extent that does not interfere with chain migration. This makes it possible to install, inspect, repair, and clean cavities, dust collection parts, etc.
That is, it can be easily attached to existing conveyors.

The chain consists of a plurality of pieces of vertical wheels and horizontal wheels arranged in succession alternately, and if a hollow part with an outer diameter smaller than that of the horizontal wheels is fixed between the vertical wheels, it will come into contact with the inside of the guide rail and cause knotting or , accidents such as rotation and the pipe getting caught in the chain will not occur.

Furthermore, if the dust collecting section is easily detachable, it can be set only during cleaning work and used only when necessary as the chain moves. If a rechargeable battery is used as the power source for the suction operation of the dust collecting section, there will be no problem with the power supply and cord handling during work.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of an embodiment of the invention of the first invention, Fig. 2 is a sectional view of the same plane, and Fig. 3 is the same Fig. 1 A
-A sectional view, Fig. 4, Fig. 5, Fig. 6, and Fig. 7 are the same parts diagrams, Fig. 8 is a partial front sectional view of the dust collecting section in the installed state, and Fig. 9 is the dust collecting section. FIG. 10 is a front sectional view of the same, FIG. 11 is a front sectional view of the embodiment of the second invention, FIG. 12 is a partial sectional view of the same plane, and FIG. The sectional view and FIG. 14 are diagrams showing the same opening state. 11...Guide rail, 11a, 11b...Guide rail inner lower surface, 12...Opening, 13...
...Chain, 17...Hook, 21...Hollow part,
27a, 27b...dust collection pipe, 32...dust collection pipe,
41...Dust collection section, 61...Replacement guide rail,
62...Bending part.

Claims (1)

[Scope of Claims] 1 A chain that connects a plurality of pieces and moves within a guide rail having an opening through which a hook can pass in conjunction with the movement of the pieces, has a hollow portion fixed between the pieces, and a base portion. A dust collection pipe is connected to the cavity and has a tip that protrudes toward the inner lower surface near the opening of the guide rail with a gap between the pipe and the base, and a dust collection pipe that communicates with the cavity and protrudes toward the inner lower surface near the opening of the guide rail. A conveyor rail dust collector comprising a dust collection pipe that passes through an opening and communicates with a dust collection section at the other end, and a dust collection section that takes in air from the dust collection pipe side. 2. The chain is made up of a plurality of pieces of longitudinal wheels and horizontal wheels arranged in succession alternately, and a hollow part having an outer diameter smaller than the outer diameter of the horizontal wheels is fixed between one longitudinal wheel. Conveyor rail dust collector. 3. A chain that connects a plurality of pieces and moves within a guide rail that has an opening through which a hook that moves in conjunction with the movement of the pieces is fixed between the pieces, and a base that communicates with the hollow and a tip. is a dust collecting pipe that protrudes toward the inner lower surface near the opening of the guide rail with a space between the pipe and the base, and the base communicates with the cavity and passes through the opening of the guide rail. The other end has a dust collection pipe that communicates with the dust collection part, a dust collection part that takes in air from the dust collection pipe side, and a bent part provided in the longitudinal direction of the guide rail on the side where a part of the guide rail has no openings. A conveyor rail dust collection device comprising a replacement guide rail that can be opened as a fulcrum.