JPH0335430Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cleaning device that cleans a machined workpiece while conveying it on a conveyor.

(Prior art) Conventionally, this type of device has been designed to clean works by installing a cleaning arch across a conveyor, and attaching a plurality of nozzles to the arch to jet water or air toward the works on the conveyor. In this case, in order to increase the cleaning effect, water or air is intermittently jetted from the nozzle by opening and closing a valve, or the nozzle is rotatably attached to a cleaning arch to spray water or air onto the workpiece at an angle. I try to spray while making changes.

(Problems to be solved by the invention) In the former conventional technology, not only does it impair the durability of circuit equipment such as valves, but also there is a loss in efficiency due to the intermittent stoppage of water and air. In the latter conventional technology, the intensity of water or air sprayed onto each part of the workpiece changes gradually as the nozzle rotates, and the impact force on the workpiece is weaker than when spraying intermittently. There is a problem that the structure becomes complicated and expensive.

The present invention solves these problems and provides a cleaning device with a simple structure that can efficiently clean the workpiece by spraying water or air at different angles without impairing the impact force. Its purpose is to

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a cleaning arch that straddles the conveyor, and a plurality of cleaning arches that spray water and air toward the workpieces on the conveyor. The apparatus to which the nozzle is attached is characterized in that a movable arch formed of a bar with a substantially triangular cross section is provided inside the cleaning arch, and the movable arch can be oscillated in the direction in which the workpiece is fed by the conveyor.

(Example) Embodiments of the present invention will be described based on the drawings.

Referring to FIGS. 1 and 2, 1 indicates a machine base, 2 indicates a conveyor provided on the machine base 1, and the conveyor 2
is composed of a chain conveyor with a net that is circulated and driven by a drive motor 2a between the front end and the rear end of the machine 1, and a workpiece is placed on the conveyor 2 and transported to the machine 1. The conveyor is conveyed from the front to the rear through a hood 3 which is long in the longitudinal direction provided above, and within the hood 3, a first washing arch ₄₁ for water washing is installed in three stages front and back so as to straddle the conveyor 2. At the same time, a second cleaning arch 4 ₂ for air blowing is placed behind it, and a pair of front and rear nozzles 4 facing inward are installed in each cleaning arch 4 ₁ , 4 ₂ .
A, 4a are installed in plural pairs from the top to the left and right sides, and water is spouted from each nozzle 4a of each first cleaning arch ₄₁ toward the work W on the conveyor 2, and the second Air was blown out from each nozzle 4a of the cleaning arch ₄₂ .

Here, the water spouted from each first washing arch ₄₁ is passed through a filter 5 to a water tank 5 provided below the machine base 1.
a, heated to an appropriate temperature in the water tank 5, and supplied to each of the first cleaning arches ₄₁ by the pump 6.

In the drawings, reference numeral 7 indicates an exhaust fan provided at the front end of the hood 3, and reference numeral 8 indicates a curtain provided at the work discharge port at the rear end of the hood 3.

Then, inside each of the cleaning arches 4 ₁ and 4 ₂ ,
Each movable arch 9 formed of a bar with a substantially triangular cross section as shown in FIG. 3 is provided.
are connected to each other at the lower ends of the left and right sides via longitudinal connecting rods 9a, 9a, and each connecting rod 9a is supported on the machine base 1 by an appropriate guide sleeve 10 so as to be slidable in the longitudinal direction. , each connected rod 9a
A tension spring 11 is connected to the front end and a cylinder 12 is connected to the rear end, and both cylinders 12, 12 are operated synchronously to move the two connecting rods 9a, 9a, and therefore each movable arch 9 fixed thereto, in the front-rear direction. oscillation.

(Function) When the movable arter 9 is oscillated, the movable arch 9 crosses between the nozzles 4a attached to the cleaning arches 4 ₁ and 4 ₂ and the workpieces on the conveyor 2.
As shown in FIG. 3a, the water or air from the nozzle 4a goes straight and is sprayed onto the part of the workpiece indicated by A in the figure, and as shown in FIG. 3b, the movable arm 9
The water or air from the nozzle 4a hits the bar with a substantially triangular cross section that constitutes the movable arm 9, and the direction of the flow of water or air is changed by the slope, which is the part shown by B in the figure on the side of part A. The state in which water and air are sprayed is repeated alternately, and intermittent spraying is carried out on part A with a pause period in the state shown in Fig. 3b, and the state shown in Fig. 3a is repeated. Effective cleaning is performed by the impact force caused by the start of spraying on the A part due to the transition to . Also, when the spraying to the A part is stopped, the B part is sprayed, and no efficiency loss occurs as in the case of intermittent jetting from the nozzle.

As the workpiece is transported, the entire surface of the workpiece is cleaned.

(Effects of the invention) As described above, according to the present invention, it is possible to intermittently spray water or air onto each part of the workpiece and perform effective cleaning using the impact force. When the application is not in use, the spray is applied to the side areas, so there is no efficiency loss, and the structure is simple and inexpensive because it is sufficient to provide a movable arch inside the cleaning arch for free oscillation. It has the effect that can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the present device, FIG. 2 is a front view taken along the line -- in FIG. 1, and FIGS. 3a and 3b are diagrams illustrating the operation of the movable arch. 2... Conveyor, 4 ₁ , 4 ₂ ... Washing arch, 4
a... Nozzle, 9... Movable arch.

Claims (1)

[Scope of utility model registration request] A cleaning arch is provided so as to straddle the conveyor, and a plurality of nozzles are attached to the arch for jetting water or air toward the workpieces on the conveyor,
A cleaning device characterized in that a movable arch formed of a bar with a substantially triangular cross section is provided inside the cleaning arch, and the movable arch can be freely oscillated in the direction in which the workpieces are fed by the conveyor.