JPS6016571Y2 - Belt conveyor cleaner - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a belt conveyor cleaner.

As shown in Fig. 1, the conventional belt conveyor cleaner 1 has a hard scraping plate 2 brought into contact with the conveyor belt 4 by a leaf spring 3, but the scraping plate 2 is evenly distributed over its entire width. Since it was difficult to contact the conveyor belt 4, sufficient scraping efficiency could not be obtained.

Further, since the scraping plate 2 is in contact with the conveyor belt 4, it is easily damaged by the impact generated on the conveyor belt 4, and wear is noticeable.

This invention was devised to solve these conventional problems, and the purpose is to provide a belt conveyor cleaner that is free from damage and wear and can ensure sufficient scraping efficiency. .

The belt conveyor cleaner according to this invention cleans the conveyor belt using air jets from air nozzles, and the air nozzles are arranged across the entire width of the conveyor belt and are arranged diagonally opposite to the conveyor belt running direction. , the angle, elevation and inclination of the belt conveyor can be adjusted freely to increase scraping efficiency, and it is placed on the return path of the conveyor belt so that it does not interfere with the conveyance operation, and the peeled-off deposits can be easily removed by falling. and will be removed immediately.

Next, an embodiment of the belt conveyor cleaner according to this invention will be described based on the drawings.

In FIGS. 2 to 4, the belt conveyor cleaner 1 has a circular nozzle header 5, and a plurality of air nozzles 6 are arranged in parallel in the longitudinal direction of the nozzle header 5 on the outer periphery of the nozzle header 5. .

Pressurized air of 5 to 7 kg/c11 is introduced into the nozzle header 5, and an air jet is injected from the air nozzle 6 toward the conveyor belt 4.

The air nozzle 6 faces diagonally to the running direction of the conveyor belt 4 with an inclination of θ=10 to 30° (Fig. 3), and strongly peels off and removes deposits.In this way, the cleaner 1 itself Since cleaning can be performed without contacting the belt 4, there is no risk of damage or abrasion to the conveyor belt 4, and the conveyor belt 4 is not abraded.

Further, since the momentum of the air jet is not greatly affected by the positioning accuracy of the air nozzle 6 with respect to the conveyor belt 4, the stirring rate can be ensured.

The air nozzles 6 are arranged across the entire width of the conveyor belt 4, and each air nozzle 6 is a rectangular cross-section nozzle that is wide in the arrangement direction.

In other words, the air nozzle 6 is connected to the conveyor belt 4 as a whole.
It sprays a band-shaped air jet that spreads across the entire width of the
To clean a conveyor belt 4 with high efficiency.

The air nozzle 6 is given a smooth ridge toward the tip, and the nozzle efficiency is sufficiently increased.

Further, the cleaner 1 is disposed on the return path near the dust collection duct of the belt conveyor 8, and can drop and immediately remove peeled deposits without interfering with the conveyance operation.

The nozzle header 5 is supported at both ends by support/adjustment mechanisms 7 so that the angle, elevation and inclination relative to the belt conveyor can be freely adjusted and moved forward and backward relative to the conveyor belt 4, and the air nozzle 6 is supported on the conveyor belt 4. This allows for optimal and stable positioning.

The support/adjustment mechanism 7 has a pair of bases 9 that protrude from below the belt conveyor 8. At the upper end of each base 9, a plurality of bottle holes 10 are formed on the periphery of the circular support. A plate 11 is fixed.

An arm 1 is attached to the base 9 at the center of the support plate 11.
2 is pivotally attached at its lower end, and the arm 12 is provided with a bottle hole 13 that can communicate with the bottle hole 10.

A chain 14 is installed near the bottle hole 13 in the arm 12.
A pin 15 is attached, and by passing this pin 15 through the pin hole 10.13, the elevation angle α of the arm 12 can be set.

Since this elevation angle α can be set for each arm 12, the angle formed by the axis of the nozzle header 5 and the return road surface of the conveyor belt 4 can also be adjusted.

A nozzle header 5 is pivotally attached to the upper end of the arm 12 via a shaft 16 at both ends, and the nozzle header 5 moves forward and backward with respect to the conveyor belt 4 as the arm 12 swings.

The shaft 16 has a circular support plate 17 concentric with the shaft 16.
is fixed thereto, and a plurality of bottle holes 18 are drilled around one circumference at the peripheral edge of the support plate 17. A bottle hole 19 that can communicate with the bottle holes 18 is bored at the upper end of the arm 12. A pin 21 is attached to the vicinity of the bottle hole 13 at 12 by a chain 20.

That is, if the pin 21 is passed through the pin holes 18 and 19,
The nozzle header 5 can be fixed in an appropriate rotational state, thereby reducing the angle θ of the air nozzle 6 relative to the conveyor belt 4.
can be set appropriately.

The base 9 projects from the upper surface of a rotor 23 whose center is supported by a vertical shaft 22, and the rotation of the rotor 23 causes the nozzle header 5 to form an angle β with respect to the width direction of the conveyor belt 4.
(see Figure 6).

The rotor 23 includes a disk-shaped base 24 and an arc-shaped fixing part 25 formed around the base 24 and concentrically with the base 24, and the fixing part 25 and the base 24 are integrally connected.

An arcuate long hole 26 centered around the shaft 22 is bored in the fixing portion 25, and a stud bolt 27 is inserted into the long hole 26 from below.

The stud 27 is fixed below the rotor 23, and a butterfly nut 28 is screwed onto the stud 27 from above.

That is, the rotor 23 is fixed by tightening the butterfly nut 28, and the rotor 23 becomes rotatable by loosening the butterfly nut 28.

As shown in FIG. 5, the nozzle header 5 has air piping 29.
is connected to this air pipe 29, and a valve 30, a solenoid valve 31, an oiler 32, and a pressure reducing valve 33 are connected to the nozzle in this order from the ladder 5 side.
, an air filter 34, a valve 35, and an air source 36 are provided.

That is, air introduced into the air pipe 29 from the air source 36 is purified by the air filter 34 and the oiler 32, and then reduced to an appropriate pressure by the pressure reducing valve 33.

Further, a controller 37 is connected to the solenoid valve 31, and the nozzle header 5 is
This allows the air to be supplied to the area, thereby minimizing the amount of air used.

Further, the valves 30 and 35 are manual on-off valves, and are used to close the air pipe 29 when the cleaner 1 is to be stopped for a long time.

Note that even if the extending direction of the nozzle header 5, that is, the direction in which the air nozzles are arranged, is along the width direction of the conveyor belt 4 as shown in FIG. 3, a sufficient cleaning effect can be achieved.
As shown in FIG. 6, by tilting the nozzle header 5 by an angle β with respect to the width direction of the conveyor belt 4, the density of the air jet per unit width of the conveyor belt 4 and thus the cleaning effect can be increased.

As described above, the belt conveyor cleaner according to the present invention cleans the conveyor belt with the air jet from the air nozzle, so there is no risk of damage or wear, and the scraping efficiency can be easily increased.

In addition, the air nozzles are arranged across the entire width of the conveyor belt, and by facing diagonally to the conveyor belt running direction, the angle, elevation, and inclination relative to the belt conveyor can be freely adjusted, resulting in high scraping efficiency. .

Furthermore, since the cleaner is disposed on the return path of the conveyor belt, it does not interfere with the conveyance operation, and peeled off deposits fall and are immediately removed.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional belt conveyor cleaner, Fig. 2 is a perspective view showing an embodiment of the belt conveyor cleaner according to this invention, Fig. 3 is a front view of the same embodiment, and Fig. 4. 5 is an enlarged perspective view showing an air nozzle in the same embodiment, FIG. 5 is a circuit diagram showing air piping in the same embodiment, and FIG. 6 is a plan view showing a modification of the same embodiment. 1... Cleaner for belt conveyor, 2...
...Scraping board, 3...Plate spring, 4...
Conveyor belt, 5...Nozzle header, 6...
... Air nozzle, 7 ... Support and adjustment mechanism, 8 ... Belt conveyor, 9 ... Base, 10 ... Pin hole, 11. ... Support plate, 12 ... Arm, 13 ... Pin hole, 14 ... Chain, 15 ... Zen, 16 ...・Shaft, 17...Support plate, 18, 19...Pin hole, 20...Chain, 21...Zen, 22...Shaft, 23
...Rotor, 24...Base, 25...
... Fixed part, 26 ... Long hole, 27 ...
・・Shut bolt, 28 ・・Bow nut, 29
...Air piping, 30...Valve, 31.
... Solenoid valve, 32 ... Oiler, 33 ...
...Reducing valve, 34...Air filter, 3
5... Valve, 36... Air source, 37.
...Controller, α...Elevation angle, β...
・Inclination, θ...Inclination, D...Dust collection duct.

Claims (1)

[Scope of utility model registration request] The nozzle header is arranged on the return path of the belt conveyor and has a plurality of air nozzles arranged across the entire width of the conveyor belt and facing diagonally to the running direction of the conveyor belt. A cleaner for a belt conveyor, characterized in that it is equipped with a support/adjustment mechanism capable of rotatably adjusting the angle with respect to the return road surface, the elevation angle, and the inclination of the air nozzle with respect to the belt conveyor return road surface.