JPS595694A - Dust removing and cleaning device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides, for example, cleaning and removing dust from a printed circuit board to prevent wire breakage and short circuits prior to wiring printing.
The present invention relates to a device that performs dust removal and cleaning processing on various objects to be processed.

Conventionally, when cleaning articles to remove dust, the surfaces of the articles were manually wiped, or, as shown in the figure, the entrance door η of the dust removal chamber of an air shower set was opened and closed to artificially trap the articles. The air was recovered and purified by the blower (F) through the exhaust port side and the filter (G), and the collected and purified air was blown onto the goods from the nozzle/L/@7) to remove dust, and then the exit door was opened and closed to remove the A dust removal and cleaning device was used that was configured to remove trapped items. However, all of these methods have disadvantages in that they rely on manual labor, resulting in poor processing efficiency, large variations in cleaning effectiveness, and the roughness of the dust removal cleaning process, making it impossible to perform a high level of dust removal cleaning.

An object of the present invention is to provide an apparatus that can perform dust removal and cleaning processing continuously and efficiently, and can reliably perform a high degree of dust removal.

The configuration of the dust removal and cleaning apparatus 'd according to the present invention is that a driven conveyor is provided in the dust removal chamber to transfer the articles to be processed from one end of the dust removal chamber to an outlet on the other end, and the dust removal chamber is connected to the conveyor. A partition wall dividing the dust removal chamber in the direction is provided, and a static elimination bar removes static electricity from the objects to be processed, and a rotating part t! that removes dust from the objects to be processed is provided in a part of the dust removal chamber partition section on the entrance side.
The remaining part is equipped with a static elimination bar similar to the above, and a gas circulation type air supply device for spraying clean gas for dust removal onto the objects to be treated, and the air supply device is connected to the dust removal chamber section. The internal pressure of the conveyor is configured such that it becomes higher toward the downstream side of the conveyor and is higher than atmospheric pressure.

The effects of the present invention are as follows.
In other words, the articles to be processed can be transferred from the inlet to the outlet by the 4/1-type conveyor, and the internal pressure of the dust removal chamber is made higher than atmospheric pressure by the air supply device, so that air can flow into the dust removal chamber. By eliminating the need to open and close the inlet and outlet for blocking, the dust removal and cleaning process can be performed continuously with no or almost no human intervention required, making dust removal and cleaning of large quantities of items extremely efficient and uniform. Now I can do it.

Moreover, the article is first strongly cleaned with a driven rotating brush in a state where static air is removed, then thoroughly cleaned with clean gas spraying in a non-electrical state, and then both of these methods are carried out. In order for the groove purification process to be carried out in a separate section divided by multiple partition walls, the internal pressure of the section section of the dust removal chamber (by means of an air supply device) is raised to a higher level on the lower side of the conveyor, so that the dust once removed is By eliminating the inconvenient phenomenon of the dust flowing into another dust removal chamber section and being reapplied to the article, it is possible to reliably remove all garbage, including dust that adheres strongly to the article and loose garbage. Overall, extremely high-level dust removal cleaning can now be performed reliably and efficiently.

Next, an example of the damage will be explained with reference to FIGS. 1 to 8.

Inside the case (3), which can be moved and fixed using casters (1) and Nutopper (2), there is a pair of left and right partition walls (4m).
, (4b) are provided, and left and right air mm chambers +5+ , +
6+, divided by filter (9), and formed at one end of case (3) 1:I (+01 to case (
3) The exit formed at the other end (path (12a) for transferring the article to be processed (5) to the river is formed by a driven lobe conveyor (12) provided in the case (3), and the dust removal chamber (7 )
A partition wall (18 m long) that divides the air into three rooms in the transfer direction of the lobe conveyor Q2).

(18b), and partition walls (14a), (14b), (14
6) It is installed in line with the dust removal chamber partition partition wall (18b) on the exit 0 side. Additionally, the outer periphery of the lobe conveyor is equipped with special rubber that is resistant to ionized air.

A static elimination bar (5) configured to eject ionized air by direct current discharge from a strip nozzle so as to act on the objects to be processed transported by the roller conveyor (02) to remove *tt air from the objects (5). 151), (15b),
(156) , and a nozzle iv that blows clean air
(16m), (16b), and (lea) are provided in the dust removal chamber section portions (7m), (7b), and (7+), respectively;
Rotation-driven brushes (17m) and (17b) for dust removal are provided only in the dust removal chamber section (71) facing the entrance (101') at the top and bottom of the path (12m) (D). The storage chamber section (8a) is placed on the entrance side, the central dust removal chamber section (7m), (7b), the left and right air circulation chamber section (5m), (6a), and the other storage chamber section. The part (8b) is the dust removal chamber partition part (76) on the exit side.
) as well as left and right air circulation chamber compartments (5b), (6b)
The air circulation chamber compartments (5m) and (5m) are connected to each other.
b), (6m), (6b) The second blower consisting of a high-performance aytvter is installed, and the first blower (19m) is used to divide the dust removal chamber on the entrance side and in the center. After cleaning the air from the sections (7a) and (7b) with the primary and secondary filters +91 and +18), the air is filtered from the nozzles A/ (16m) and (16b) again into the dust removal chamber compartment section (7m). ), (7b) -
After cleaning the air from the dust removal chamber section (7e) on the outlet side with the first and second filters 19) and +18) using the second blower (19b), It is configured so that the nozzle A/(166) sprays the article to be treated in the dust removal chamber section (76) again. In addition, brush (17m), (17b) tri
The vertical position is adjustable and the speed is continuously variable.

Nozzles iv (16m), (16b), and (16o) are attached so that they can be freely changed in direction, and the nozzle (16a)
, (16b).

(1ee) Attach a flow rate control valve to each of the dust removal chamber sections (7m), (7b), and (76) to blow air in a state suitable for removing dust from articles, and to make sure that the blown air flows smoothly. In addition, it is configured to flow downwardly toward the primary filter (9) with less unevenness, and the dust removal chamber section (
7m), (7b), and (76) are configured to be higher as they move further down the roller conveyor 02 in the transport direction, and higher than atmospheric pressure.

The parts of the bulkheads (4b) and (4b) to which the lobe conveyor (+2 and brush (1γ@), (17b) are attached) are connected to it, and the electric motors for driving nine rollers and pushers, as well as the transmission cover. - is removably attached to the case (3) integrally with the case (3), and an inspection opening with a grounded transparent lid (21) is formed on the upper surface of the case (3), so that the object to be processed - is clogged. It is structured so that it can be easily processed when

The electric motors for driving the lobes, brushes, blowers, etc. are each equipped with a thermal relay or an earth leakage preventer to automatically stop the entire device in the event of clogging of objects to be processed. It is configured to blink the abnormality warning light to notify the occurrence of trouble and the location where the trouble has occurred using a color display or the like.

A photocell type or other article presence/absence detection sensor is installed near the entrance (lO), and when the sensor detects the presence of an article, it immediately moves to the lobe conveyor 0'4, Buch V (17m), (17m).
b), blower (19a), (19b), static eliminator (-(
15m), (15b), and (15e), etc., and when the sensor (glue) detects the absence of the article (5) for a set period of time, the rollers are activated at appropriate timing to prevent the article from remaining inside the device. Conveyor H, brush (11),
(17b), blower (19m), (19b), static eliminator (-(15a), (15b), (156), etc.) are configured to be automatically stopped.

Various operating tools and the above-mentioned self-help controllers for safety and security are centrally arranged in a detachable operation box 124),
Easy to operate, repair, and inspect. - 8 parts.

Next, another example will be shown.

Instead of the lobe conveyor, various types of conveyors θ may be used, and conveyor guides may be provided as appropriate depending on the size and shape of the article.

The number of compartments in the dust removal chamber (7) may be two or more;
Brush (X7m) if partitioned into more than one room.

The relationship between the number of elements with and without (17b) may be appropriately determined as necessary.

The type of clean gas to be sprayed onto the article to be treated can be selected as needed, and the specific type of air supply device (9, 19, 18, 16) that circulates the gas to the dust removal chamber (7) can be selected as needed. The configuration can be changed freely.

It is also possible to freely add configurations such as making the case (3) covered with sound absorbing material to make it vinegar-proof, or omit some configurations.

The type, shape, size, etc. of the article to be processed are not concerned.
For example, it can also be applied to biological cleaning of film sheets in pharmaceutical packaging lines.

[Brief explanation of the drawing]

1 to 8 show embodiments of the present invention, and FIG.
i Schematic vertical cross-sectional view, Figure 2 is a 1-1 line 1@ side view of Figure 1,
FIG. 3 is a sectional view taken along the line T in FIG. 1. FIG. 4 is a schematic vertical sectional view of a conventional example. (7)...Dust removal room, (7m), (7b), (7
a)... Dust removal chamber section, (9, 19, 18,
16), (9, 19b, 18b, 16b
')--Air supply device, 1lo)...Inlet, (u)...Outlet, θno...--0: I y
Bear, (18m, 18b) --- Bulkhead, (15m)
.

Claims (1)

[Scope of Claims] ■ A driven conveyor 02) is provided in the dust removal chamber (7) for transporting the objects to be processed from the entrance [10] at one end to the exit (11) at the other end, and the dust removal chamber (7) ) to the conveyor O
Partition walls (18a) and (18b) are provided to partition the dust removal chamber in the transfer direction of A removing bar (15a) that removes static electricity from the objects, and a rotationally driven brush (17K) that removes dust from the objects to be processed. (17b), and the remaining parts (7b) and (7e) are equipped with the above-mentioned peep removal parlors (15b) and (156), and a gas circulation type air supply device that sprays clean gas for dust removal onto the objects to be treated. ff (9, 19, 18, 16) are provided respectively, and the air supply device fi (9, 19, 18, 16) is installed so that the internal pressure of the dust removal chamber compartment portions (7m), (7b), (7Il+) is A dust removal and cleaning device characterized in that the pressure is higher on the downstream side of the conveyor (12) and higher than atmospheric pressure. (2) A plurality of the air supply devices (9, 19, 18, 16) are provided, and the outlet (11) is provided in the dust removal chamber section.
) The air supply device (9, 19) dedicated to the one (1e) facing the
18b, 166)). The dust removal and cleaning device according to claim 0.