JPH0738032U - Dust collector on conveyor line - Google Patents

Abstract

(57) [Summary] [Purpose] Dust can be collected in a direction parallel to the traveling direction of the conveyor line. [Configuration] An auxiliary hood 13a, which is provided subsequent to a dust collection hood 13 provided above an intermediate conveyor 12 that can be temporarily stopped, is movable to a position facing an article on the conveyor and a position not facing the article, and an auxiliary hood is collected. A hose 13b connected to the dust duct 14, a damper 14a provided in the dust duct and capable of passing or blocking air absorbed from the dust hood and the auxiliary hood, and driving the damper to open or close the dust duct. The first actuator 14b, the second actuator 13c for moving the auxiliary hood, and the air nozzle 1 for blowing the dust removing air onto the article on the intermediate conveyor.
6, a switch 17a that switches when the air nozzle is in an unused state or a used state, and a controller 21 that controls the first actuator and the second actuator according to a switch switching signal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust collector on a conveyor line used in manufacturing factories.

[0002]

[Prior art]

 Conventionally, a dust collector as shown in FIG. 5 has been tried. In this device, an intermediate conveyor 2 is provided in the middle of the main conveyor 1, which can temporarily stop articles requiring dust removal, and a dust collecting hood 3 connected to a dust collecting duct 4 is provided above the intermediate conveyor 2. To be The skirt portion 3f of the dust collecting hood 3 is provided with a cut 3g so that an article can pass through the intermediate conveyor 2. The air nozzle 6 taken out from the nozzle holder 7 is directed to the article temporarily stopped by the intermediate conveyor 2, and high-pressure air is blown by the air nozzle 6. Dust is blown from the article and is removed through the dust collecting hood 3 and the dust collecting duct 4.

[0003]

[Problems to be solved by the device]

 However, this dust collector does not cause a problem when dust generated by blowing high-pressure air flows all over the skirt portion 3f on the upper side or the rear side of the intermediate conveyor 2, but it is caused by the shape and structure of the article. When the generated dust flows to the upstream side or the downstream side of the main conveyor 1, the dust collecting hood 3 is provided with the cut 3 g, so that the dust collecting function is not sufficient. For example, when the cylinder block of an engine immediately after casting is conveyed by the main conveyor 1 with its front-rear direction as the traveling direction to remove sand adhering to the inside of the block on the intermediate conveyor 2, the direction of high-pressure air spraying Because of the structure of the holes in the block, the dust collection hood 3 cannot sufficiently collect dust because it is in the transport direction or the opposite direction due to the structure of the block. The dust that could not be collected in this way deteriorates the work environment and, as a result, may impair the health of workers.

An object of the present invention is to provide a dust collector on a conveyor line that can collect dust flowing in a direction parallel to the traveling direction of the conveyor line.

[0005]

[Means for Solving the Problems]

 A configuration of the present invention for achieving the above object will be described with reference to FIG. 1 corresponding to an embodiment.

The dust collector of the present invention comprises an intermediate conveyor 12 which is provided in the middle of a main conveyor 11 for carrying articles A, B and C which require dust removal, and which can temporarily stop the articles A, B and C, A dust collecting hood 13 provided above the intermediate conveyor 12, and a second position which is provided subsequent to the dust collecting hood 13 and which faces the articles A, B, and C on the intermediate conveyor 12 and does not face the first position. , A hose 13b connecting the auxiliary hood 13a to the dust collecting duct 14 and the air sucked from the dust collecting hood 13 and the auxiliary hood 13a provided in the dust collecting duct 14. Alternatively, the damper 14a that can be shut off, the first actuator 14b that drives the damper 14a to open or close the dust collection duct 14, and the auxiliary hood 13a are moved to the first position or the second position. A second actuator 13c, an air nozzle 16 for blowing dust-removing air onto the articles A, B, C on the intermediate conveyor 12, and a switch 17a that switches when the air nozzle 16 is in a non-use state or a use state. The controller 21 controls the first actuator 14b and the second actuator 13c by the switching signal of the switch 17a.

[0007]

[Action]

 The article B is sent from the main conveyor 11 to the intermediate conveyor 12 and set. In this state, when the worker puts the air nozzle 16 into use, the switch 17a is switched, the controller 21 operates the first and second actuators 13c and 14b, and the auxiliary hood 13a of the dust collecting hood 13 is transferred to the article B. Move to the first facing position. Further, the damper 14a is opened so that the air sucked from the dust collecting hood 13 and the auxiliary hood 13a can pass through. An operator blows air from the downstream side of the conveyor line toward the upstream side by the air nozzle 16 to blow dust to the upstream side of the conveyor line. The blown dust is collected by the auxiliary hood 13a, is carried to the dust collecting duct 14 by the hose 13b, and passes through the damper 14a. When the air nozzle 16 is not used, the switch 17a is switched and the controller 21 moves the auxiliary hood 13a to the second position where it does not face the article B and shuts off the damper 14a.

[0008]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 4, the dust collector on the conveyor line of the present invention is an intermediate conveyor which is provided in the middle of a main conveyor 11 for carrying articles A, B and C requiring dust removal and which can temporarily stop articles. 12, a dust collecting hood 13 provided above the intermediate conveyor 12, a dust collector (not shown), a dust collecting duct 14 that connects the dust collector and the dust collecting hood 13, and removes dust adhering to the article. It is composed of an air nozzle 16 which blows out the air for the purpose and a nozzle holder 17 which is held when the nozzle 16 is not used. In this example, the articles A, B, and C requiring dust removal are cylinder blocks of a vehicle engine in which sand adheres to the inside of the block immediately after casting.

The intermediate conveyor 12 is provided with a pair of conveyors 12a and 12b having a clearance such that the articles A, B and C can be inserted vertically, and fixing means such as screws at both ends of the conveyors 12a and 12b so as to surround the conveyors 12a and 12b. It is composed of a pair of fixed rings 12c. A pedestal 18 is provided below the intermediate conveyor 12, and a plurality of pairs of rollers 18a and 18b rotated by a motor 20 are attached to the pedestal 18 (FIG. 3). The intermediate conveyor 12 is rotatably installed by mounting a pair of rings 12c on rollers 18a and 18b.

The dust collecting hood 13 is provided with a skirt portion 13f extending to the rear of the conveyor line, and a second position which is provided following the dust collecting hood 13 and faces the article B on the intermediate conveyor 12 and does not face the first position. The auxiliary hood 13a that is movable to the position and the hose 13b that connects the auxiliary hood 13a to the dust collecting duct 14 are provided. In this example, the auxiliary hood 13a is provided on the side surface of the dust collecting hood main body on the upstream side of the conveyor line via a means such as slide bearing, and the movement thereof is performed by the actuator 13c. The hose 13b is formed of a flexible material such as silicone rubber, and has one end connected to the auxiliary hood 13a and the other end connected to the vicinity of the dust collecting hood 13 of the dust collecting duct 14.

The dust collecting duct 14 is provided with a damper 14a capable of passing or blocking the air sucked from the main body of the dust collecting hood 13 and the auxiliary hood 13a. The opening and closing of the damper 14a is performed from the outside of the dust collecting duct 14 by the actuator 14b. In this example, the actuators 13c and 14b are air cylinders. The nozzle holder 17 is provided with a switch 17a for detecting the presence or absence of the air nozzle 16. The switching signal line of the switch 17a is connected to the controller 21. The control output of the controller 21 is connected to the electromagnetic switching valve 13d of the actuator 13c and the electromagnetic switching valve 14c of the actuator 14b. These actuators 13c and 14b are connected to the air tank 22 via electromagnetic switching valves 13d and 14c.

The operation of the dust collecting apparatus on the conveyor line thus configured will be described. Articles A, B, and C requiring dust removal are conveyed by the main conveyor 11, and when the article B is sent to the intermediate conveyor 12, it is set on the conveyor 12a below the intermediate conveyor 12. In this state, when the air nozzle 16 is pulled out from the nozzle holder 17 in order to remove the sand adhering to the inside of the block, the switch 17a of the nozzle holder 17 is switched. By this switching signal, the controller 21 switches the electromagnetic switching valves 13d and 14c to control the actuators 13c and 14b. That is, the actuator 13c descends the auxiliary hood 13a so as to close the upstream entrance of the intermediate conveyor 12, and moves to the state shown in FIG. 1, that is, the first position. The actuator 14b opens the damper 14a so that the air sucked from the main body of the dust collecting hood 13 and the auxiliary hood 13a can pass through.

In this state, the operator blows air from the downstream side of the conveyor line toward the upstream side by the air nozzle 16 to blow dust, which is sand inside the block, to the upstream side of the conveyor line. At this time, depending on the working state, the roller 18a provided on the pedestal 18 may be rotated by the motor 20 to tilt the intermediate conveyor 12. Moreover, the dust-removed article B of the cylinder block may be inverted to be sent to the next step. The blown dust is collected by the auxiliary hood 13a that blocks the upstream side of the conveyor line, is carried to the dust collecting duct 14 by the hose 13b, passes through the damper 14a, and reaches a dust collector (not shown). In addition, dust flowing in other directions, for example, above or behind the conveyor line, is collected by the main body of the dust collecting hood 13 provided above the intermediate conveyor 12 and the skirt portion 13f extending rearward of the conveyor line and collected by the dust collecting duct 14. It is carried to the dust collector.

In order to complete the dust removal of the article B to remove the dust of the article C of the next cylinder block, once the air nozzle 16 is housed in the nozzle holder 17, the switch 17a is switched, and the controller 21 causes the electromagnetic switching valves 13d and 14c. , And the auxiliary hood 13a is raised to move to the state shown in FIG. 2, that is, to the second position, and the inlet on the upstream side of the conveyor line is opened. At the same time, the damper 14a shuts off the dust collecting duct 14 as shown in FIG. As a result, the dust-removed cylinder block article B is carried to the next step, and the next dust-removed cylinder block article C can be carried in from the upstream side of the conveyor line. In this embodiment, the auxiliary hood is provided on the upstream side of the conveyor line, but it may be provided on the downstream side of the conveyor line and the dust removing air may be blown from the upstream side.

Further, the article is not limited to the cylinder block of the engine as long as it requires dust removal.

[0016]

[Effect of device]

 As described above, according to the present invention, since the auxiliary hood is provided on the upstream side in the traveling direction of the conveyor line, it is possible to collect the dust flowing in parallel with the traveling direction of the conveyor line, and as a result, the working environment. Can be improved. Also, since the auxiliary hood is movable, it does not hinder the transfer of articles from the main conveyor to the intermediate conveyor. In addition, since a damper that can pass or block the air taken in from the dust collecting hood main body and the auxiliary hood is provided in the dust collecting duct, the dust that has sucked in does not return and does not get on the article, so another dust collecting A single dust collector can cover the dust collector of the present invention together with the dust collector. Furthermore, since the movement of the auxiliary hood and the movement of the damper are performed by the switch provided on the nozzle holder via the controller, workability is further enhanced.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an operating state of a dust collector according to an embodiment of the present invention.

FIG. 2 is a view corresponding to FIG. 1 showing a moving state of articles of the dust collecting apparatus according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along the line DD of FIG.

FIG. 4 is a perspective view of a dust collector according to an embodiment of the present invention.

FIG. 5 is a diagram corresponding to FIG. 4 showing a conventional example.

[Explanation of symbols]

 11 Main Conveyor 12 Intermediate Conveyor 13 Dust Collection Hood 13a Auxiliary Hood 13b Hose 13c Second Actuator 14 Dust Collection Duct 14a Damper 14b First Actuator 16 Air Nozzle 17a Switch 21 Controller

Claims (1)

[Scope of utility model registration request] 1. An intermediate conveyor (12) which is provided in the middle of a main conveyor (11) for carrying articles (A, B, C) requiring dust removal and which can temporarily stop the articles (A, B, C). And a dust collecting duct (14) provided above the intermediate conveyor (12)
A dust collecting hood (13) connected to the dust collecting hood (13) and the intermediate conveyor provided after the dust collecting hood (13).
(12) An auxiliary hood (13a) movable to a first position facing the upper article (A, B, C) and a second position not facing the upper item, and the auxiliary hood (13a) to the dust collecting duct ( Hose (13b) connected to 14), and a damper (14a) that is provided in the dust collection duct (14) and that can pass or block the air sucked from the dust collection hood (13) and the auxiliary hood (13a). A first actuator (14b) for driving the damper (14a) to open or close the dust collecting duct (14) and the auxiliary hood (13a) to the first position or the second position. A second actuator (13c), an air nozzle (16) for blowing dust removal air to the articles (A, B, C) on the intermediate conveyor (12), and the air nozzle (16) in a non-use state or A switch (17a) that switches when in use, and a switch signal of the switch (17a) controls the first actuator (14b) and the second actuator (13c). A dust collector on a conveyor line equipped with a controller (21) to control.