JPH0443038A - Dust collector for printer - Google Patents

Abstract

PURPOSE:To suck air in a stratiform state, to work the suction force up to a far position, to suck scattered powder efficiently and sufficiently and to pre vent the fouling of a printer by installing a partition wall to the suction port of a suction member. CONSTITUTION:Powder 80 scattered in a region, in which powder for preventing an offset is scattered to the printed surface of printing paper from a nozzle 8, is sucked by a suction member 10, and captured by a filter 13. Partition walls 21 are mounted to the suction ports 19 of the suction member 10 at that time. Accordingly, scattered powder can be sucked efficiently and sufficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dust collector for a printing press, and more particularly to a dust collector for flying powder for preventing set-off.

[Conventional technology]

Conventionally, when powder to prevent set-off is sprinkled on the printed surface of printing paper, it scatters around the powder, staining the printing press and further deteriorating the working environment in the factory. Therefore, the dust that scatters near the powder is sucked up with a suction member and sent to a filter with a hose.The filter captures the powder and discharges the purified air into the factory. Since the suction port of the suction member is necessarily opened wide, the scattered souder cannot be sufficiently suctioned efficiently.

[Problem to be solved by the invention]

The present invention attempts to solve the problems of the conventional dust collectors described above, and aims to provide an apparatus that can efficiently and sufficiently suck up scattered powder.

[Means to solve the problem]

In order to achieve the above object, a partition wall is provided at the suction port of the suction member.

〔Example〕

Embodiments of the present invention will be specifically described below with reference to the drawings.

The dust collecting device of the present invention is suitably used in a printing press that prints sheets of paper. Figure 1 shows the paper ejection section;
A chain (3) is hung between the lower paper discharge cylinder (1) and the diagonally upper chain gear (2). The paper is fed from the paper cylinder (1) to the chain gear (2), and there is a support base (6) below the chain gear.
stacked on top. From the paper delivery cylinder (1) to the chain gear (2)
The area up to this point is covered by the main body (7) of the printing press. A spray nozzle (8) for a 7-sauder is arranged on the diagonally rising part of the chain (3). When the printing paper (5) passes through the nozzle (8), powder for preventing set-off is sprayed by the nozzle. An air outlet (9) is provided below the nozzle (8), which forms an air curtain to prevent powder from scattering downward.

As a dust collector, the suction member QO is a spray nozzle (8)
The dust collector body (b) is installed above the printing press body (7).
The suction member αQ and the dust collection body (B) are connected by a hose (B). Inside the dust collector body (2), there is a filter (to), a fan α◆, and a fan motor (
(to) and dust box (to) are incorporated. When the motor (G) rotates the 77-inch α◆, the suction member (
6) and sent to the filter (to) through the hose (2). ,<The air is captured by the filter (to), and the clean air that has passed through the filter side is discharged from the exhaust port (g) of the ceiling αη of the main body (b) by the fan α4.

The suction member α0 has a rectangular parallelepiped main body having a rectangular suction port α field with a width equal to the width of the printing press main body (7),
A lattice-shaped partition wall e1) is provided within the suction port cI9. A rectangular baffle board () is installed between the partition wall (c) and the rear wall (a) of the main body, and both ends of the board are fixed to the rear wall (b) with legs (c) in a floating state. The length is set to be slightly shorter than the width of the main body. Main body (1
) The rear wall slope has r ventilation holes (c) drilled at equal intervals along its entire length, and a hose (2) insertion port (1) is provided on the rear wall.
) are combined. Air is guided by the partition wall (c) of the suction port α9 of the main body (1), goes around the upper and lower sides and both sides of the baffle plate, and is discharged from each insertion row.

The partition wall 01) sucks air in a layered manner, exerts the suction force over a long distance, and contributes to efficient and sufficient suction of the scattered air. In addition to the vertical and horizontal lattice shapes, the partition walls e have a diagonal lattice shape (Fig.
Appropriate shapes are used, such as horizontal parallel lines (Figure 2C), diagonal parallel lines (Figure d), and vertical wavy parallel lines (Figure e). be done.

The filter is made of non-woven fabric and is formed into a bellows shape, and is incorporated into a rectangular frame. The frame has bearings on both sides.
is fixed, and a shaft that fits into the bearing is fixed to both side walls (1) of the main body (b), and the shaft swings between a horizontal state and an inclined state by fitting the bearing and the shaft.

The filter side filters air in its slanted position, and when it returns to its horizontal position, the captured powder falls into the dust box below.

The dust box (2) is in the shape of a rectangular parallelepiped, and is inserted into and removed from the opening c3B (Fig. 2) of the side wall (1) of the main body (b).

The filter (to) takes a horizontal position when the fan motor (to) is not driven, and is swung to an inclined position by the driving means at the same time as the fan motor (to) is driven. As a driving means, a solenoid (2
) is used, one end of the connecting piece (to) is connected to the operating rod (c) with a pin, the other end of the connecting piece is connected to the end arm (137) with a pin, and the arm is connected to the filter ( (to) is fixed to the frame (Figure 1). Operating rod (c) X6 When reciprocated by the solenoid (to), the filter (to) swings around the shaft. The excitation of the solenoid (b) is linked to the activation of the motor (to), and the filter side assumes an inclined position when air flows.

As another example of the means for driving the filter, wind force of the air passing through the filter can be used. When air is not being fed, the filter (to) assumes a horizontal position due to its gravity, and when air is being fed, the filter side is swung from a horizontal position to an inclined position by the wind force (Figure 1). The torsion coil spring C31 is attached to the filter side bearing (
(e) and the shaft on the side wall (1) of the main body, hook one end (40) of the spring to the protrusion (4) erected on the mounting seat of the shaft, and connect the other end (43). It is hooked onto the protrusion (44) on the filter side (Fig. 11, Fig. 72).

The spring (39) always works to rotate the filter in an inclined direction, and the strength of this spring is slightly weaker than the strength that rotates the filter side in the horizontal direction due to its gravity.Therefore, the filter side is affected by a small wind force. Even if the object is exposed to the force, it will be rotated in the direction of inclination.

The fan α~ is of a centrifugal type, and air is guided radially from the center of the impeller (49) (see Figure 1) and is discharged from the outlet (47) of the spiral casing +46 (see Figure 1O). )
.

The seventh pin α4 is provided on two sides, and the motor is placed on the casing throat of each fan.

What is the size of the filter for the dust box? They are the same and are provided below the filter side. When the filter (2) returns from the tilted position to the horizontal position, the filter frame @ is captured by the filter due to the impact received from the receiver (c). <The dust collection body (b) for the dust box is a rectangular parallelepiped with a low ceiling and slopes (4 values are formed) on the mutually parallel corners of the ceiling.The inside of the body (6) is 1115G. erected wall 51
), a wall hanging from the ceiling αη, and a wall extending from the waist wall to the rear wall, and a ventilation hole mark is formed in the center of the wall. figure). Front wall□□□
The space mark surrounded by the wall 151) and the bottom E11m is used as a storage room for the dust box (4), and the space surrounded by the sloping wall (4), the ceiling trunk, and the wall (G) is used for storing the filter side. The space 6I, which is used as a room and surrounded by the rear wall ■, the ceiling αη, the wall 62, and the wall □□□, is used as a storage room for the fan α◆ and the motor (see Figure 1).Bottom- There are r ventilation holes on the edge where it intersects with the front wall.
2) is formed, and the hose outlet 6υ (Fig. 2) is formed on the famous flower.
are connected, and these outlets 1) and suction member ■
The insertion port 01 of is connected with a hose (6). The powder sucked by the suction member αQ is sent together with air through the ventilation hole into the compartment for the dust box, and is captured by the filter above (see Figure 1). The air passes through the filter side and is purified, and the purified air descends between the walls 6υ and 63 and is sent to the chamber of the space fi3 below the wall (b),
It is sucked into the fan α◆ from the center ventilation hole (Fig. 1). Furthermore, the air is discharged from the outlet of 7 an α4 (4 force) and is discharged from the exhaust port (g) of ceiling αη (Fig. 2)
. The inspection window is used to inspect the filter side and is covered with a lid. The opening part on the slope (4gI) is used to take in and take out the filter, and is closed with a lid.The opening part may be formed on the wall (49) on the horizontal extension of the filter side /Diagram). The gunnel is fixed to the side wall ■, and the gunnel is equipped with a switch for power, a switch συ for starting the motor (to), and a switch σ2 for stopping the motor ( Second
figure).

Inside the ventilation passage qJ that connects to the ventilation hole ■ on the bottom 6I of the main body αυ, a wall (1) is attached with a pin (c) so that it can swing freely.
It is pivoted to the holder and can swing from a horizontal position to an inclined position (Figures G and D). This damper σ4 is adjusted and fixed at an appropriate opening angle to adjust the suction force.

When using the drive means of the solenoid (2), the wall 6
υ, the waist wall 6υ, both side walls σe perpendicular to the other walls, the rear wall σ connected to these both walls, and the ceiling wall σ to form a space (79) partitioned by the barrel. , Fig. 1O), a solenoid (b), an operating rod (to), and a terminal C33 are incorporated in this space.

〔Effect of the invention〕

As described above, the present invention relates to the area in which powder for preventing set-off is sprinkled on the printing surface of the printing paper (5).

In the device that sucks the scattered powder ■ with the suction member QO and captures it on the filter side, a partition wall 01) is provided on the suction port side of the suction member, so the air is sucked in layers and the suction power can be extended far. This makes it possible to efficiently and sufficiently suck up the powder that has spread and scattered, which in turn prevents the printing press from becoming dirty and maintains a good working environment in the factory.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, in which Fig. 1 is a schematic diagram of a paper discharge section of a printing press, Fig. 2 is a perspective view of a dust collector, Fig. 3 is a perspective view of a suction member, and Fig. 3 is a perspective view of a suction member. Figure 3 is a horizontal sectional view taken along the line ■-■, and Figure 5 is a horizontal cross-sectional view taken along the line ■-■ in Figure 3.
) is a front view showing a modified example of the suction port, FIG. 7 is a perspective view of the filter, FIG. , Figure 1O is the X-
X-ray cross-sectional view, Figure 1/ is a cross-sectional view similar to Figure g, Figure 12
The figure is a sectional view taken along the line ■--■ in FIG. 11. In the figure, (1) is the paper delivery cylinder, (2) is the chain gear, (3) is the chain, (4) is the gripping claw, (5) is the printing paper, (6) is the support stand, (7) Fiha body, (8) Haspray nozzle,
(9) is the air outlet for the air curtain, <IQ is the suction member, (b) is the dust collector body, (b) is the hose, b is the filter, α is the fan, (to) is the motor, (g) is the dust box, (to) is the exhaust port, (6) is the suction port, ■ is the bearing, the handle is the shaft, (to) is the operating rod, (b) is the solenoid, (
C) is the connecting piece-37) Hahoom, (to) Honeysili coil spring, 9 is the impeller, decoy is the nursing, 0'r) is the outlet,
(G) is the ventilation hole, and @0 is the scattered powder.

Claims (1)

[Claims] A device in which powder scattered in an area where anti-set-off powder is sprinkled on the printing surface of printing paper is sucked by a suction member and captured by a filter, characterized in that a partition wall is provided at the suction port of the suction member. Dust collector for printing presses.