JPH0443037A - Dust collector for printer - Google Patents

Abstract

PURPOSE:To remove powder positively by forming a filter in a rocking-free- shape between an inclined state and a horizontal state, capturing powder under the inclined state and dropping powder into a dust box in return to the horizontal state. CONSTITUTION:A filter 13 is formed in a bellow shape by a nonwoven fabric, and incorporated into a rectangular frame body 27. Bearings 28 are fixed on both sides of the frame body 27, shafts 29 fitted to the bearings are fastened to both sidewalls 30 of a main body 11, and the filter is rocked between a horizontal state and an inclined state by the engagement of the bearings 2 and the shafts 29. Air is filtered at the tilt position of the filter 13, and powder captured when the filter is returned to the horizontal position is dropped into the dust box 16 of a lower section.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a dust collection device for a printing press, and in particular to a dust collection device for a printing press.
(This is related to a dust collection device that captures the powder that is scattered in the air when powder is sprayed.)

[Conventional technology]

Conventionally, when spraying powder to prevent set-off on the printed surface of printing paper, it scatters around the powder, staining the printing press and worsening the working environment in the factory.

Ru. Therefore, a suction member is used to collect the scattered powder near where the powder is being dispersed, and a hose is used to send the powder to a filter, which captures the powder and discharges the purified air into the factory. The filter was formed into a bellows shape and was trapped in this filter. <In order to remove the powder, a motor-driven spatula is installed on the back side of the filter, and the spatula is moved back and forth so as to hit the top of the bellows, giving vibration to the filter.

[Problem to be solved by the invention]

In the conventional dust collectors mentioned above, powder is caused to fall from the filter by reciprocating the spatula using a motor to cause the powder to fall from the filter. There are problems such as being reliable.

The present invention aims to provide a filter that has a simple structure for removing powder from a filter, is less likely to malfunction, and is capable of reliably removing powder.

[Means to solve the problem]

In order to achieve the above object, the filter is swingable between a tilted state and a horizontal state, and is configured to capture the souder in the tilted state and drop it when returning to the horizontal state.

〔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 machine that prints paper sheets one by one.
A chain (3) is hung between the lower paper delivery cylinder (1) and the diagonally upper chain gear (2), and the claws (4) pulled by this chain pull the printing paper (5) onto the paper delivery cylinder. (1) to the chain gear (2) and stacked on the support base (6) below the chain gear. The portion from the paper delivery cylinder (1) to the chain gear (2) is covered by the main body (7) of the printing press. A spray nozzle (8) for mauder is placed on the diagonally rising part of the chain (3). The printing paper (5) is inserted into the nozzle (
When passing through step 8), powder to prevent set-off is sprayed with a nozzle. Below the nozzle (8) is an air outlet (
9) is provided, and an air curtain is formed at this outlet to prevent powder from scattering downward.

As a dust collector, the suction member α11 has a spray nozzle (8
), and the dust collecting body αυ is located above the printing press body (7).
The suction member Q□ and the dust collection body α〃 are connected by a hose (B). Inside the dust collector body α, there is a filter □□□, a fan α, and a fan motor (to).
And Dust Box Q! built-in. motor(
When fan α4 is rotated with
) Scattered powder @I is sucked up by the suction member qQ and sent to the filter by the hose □□□.

The powder is captured by the filter, and the clean air that has passed through the filter is sent to the ceiling αη of the main unit (6) by the fan Q.
is discharged from the exhaust port (goods) of the

What is the width of the printing press body (7) for the suction member QQ? It has a rectangular parallelepiped main body (1) having rectangular suction ports α9 of equal width, and a lattice-shaped partition wall 01) is provided within the suction ports σ9. A rectangular barrier is provided between the partition wall 01) and the rear wall of the main body (A), and both ends of the barrier are fixed to the rear wall (2) with legs (C) in a floating state, and the length of the barrier is The width is set to be slightly shorter than the width of the main body. Main body-
The rear wall (A) has r ventilation garlands drilled at equal intervals along its entire length, and a hose (2) insertion port (E) is connected to the hole. Air is supplied to the main body through the partition wall e of the suction port a9]
), it goes around the top and bottom sides and both sides of the baffle plate (G) and is discharged from each outlet (E).

The partition wall (c) sucks air in a layered manner, extends the suction power over a long distance, and contributes to efficient and sufficient suction of scattered powder. In addition to the vertical and horizontal lattice shapes, the partition walls eη have a diagonal lattice shape (Fig. a), and a vertical parallel line shape (the sixth
Appropriate shapes are used, such as horizontal parallel lines (Figure C), diagonal parallel lines (Figure 6 d), and vertical wavy parallel lines (Figure 6 e). be done.

When used as a filter, it is made of non-woven fabric and is shaped like a bellows, and is incorporated into a rectangular frame. Bearings @ are fixed to both sides of the frame body, and shafts that fit into the bearings are attached to both side walls (2) of the main body (2).
1), and swings between a horizontal state and a tilted state by fitting the bearing rod and the shaft rod.

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

The dust box (to) is in the shape of a rectangular parallelepiped, and is inserted into and taken out from the opening Gυ (FIG. 2) in the side wall (2) of the main body (2).

The filter (to) assumes a horizontal position when the fan motor α9 is not driven, and is swung to an inclined position by the driving means at the same time as the fan motor α9 is driven. As a driving means, a solenoid (to) that reciprocates the operating rod (to) up and down using an electromagnetic coil (not shown)
is used, one end of the connecting piece @ is connected to the operating rod with a pin (to), and the other end of the connecting piece is the arm C37)K Hin□□□
The arm is fixed to the filter frame (Fig. g). When the operating rod (2) is reciprocated by the solenoid (2), the filter CI3 is swung around the shaft. The excitation of the solenoid (2) is linked to the activation of the motor (to), and the filter (to) takes 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 takes 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).

So that even a small wind force can sway the filter CI3.
Wrap the torsion coil spring C31 around the bearing on the filter side and the shaft on the side wall (G) side of the main body, and connect one end of the spring (4 (1) to the mounting seat of the shaft (4υ) and the other end (43) is hooked on the protrusion ■ on the filter (to) side (Fig. 11, Fig. 72).This spring C19
The spring always works to rotate the filter side in an inclined direction, and the strength of this spring is slightly weaker than the strength that rotates the filter horizontally due to its gravity. Therefore, the filter □□□ is rotated in the inclined direction even if it receives a small wind force.

The fan is a centrifugal type in which air is guided radially from the center of the impeller (C) (Figure 1) and is discharged from the exit α of the spiral casing frame (Figure 1). .

Fan α4 is provided on the λ side, in the casing of each fan)
The motor (A) is placed on top of the motor.

The dust box (to) is a rectangular parallelepiped with an open top, the size on the filter side is the same as y, and it is provided below the filter (to). When the filter side S returns to the horizontal position from the tilted position, the powder captured by the filter is shaken off into the dust box (G) by the impact received by the filter frame @ from the receiver (C).

The dust collector body (2) is a flat rectangular parallelepiped with a low ceiling, and slopes (43) are formed at mutually parallel corners of the ceiling. Gυ, a wall 6z suspended from the ceiling αη, and a wall extending from the wall to the rear wall, and a ventilation hole is formed in the center of the wall. Figure).The space mark surrounded by the front wall can, wall 6υ and bottom ■ is used as a storage room for the dust box (G), and the space □□□ surrounded by the inclined wall (41, ceiling αη and wall 62) is a filter.・The space 51 surrounded by the rear wall, ceiling αη, walls 53 and walls 64) is used as a storage room for 7-ring α4 and motor 0■. (Fig.).The bottom ■ has r ventilation holes l0) (Fig. These outlets Sυ and the outlet for the suction member are connected by a hose □□□.The powder sucked by the suction member αq is discharged from the ventilation hole [F]0) along with the air. The dust is sent into the dust box chamber 67) and captured by the filter above it (see Figure 3). The air passes through the filter ■ and is purified, and the purified air is sent down through the wall 61) and the pavilion to the space (62) below the wall G4), and is sent to the central ventilation hole 55 through the fan α. Isamu attracts attention (Figure 7). Furthermore, air is discharged from the outlet 07 of the 7 amp α4 and is exhausted from the exhaust port (to) on the ceiling side (Fig. 2) 6 inspection window (
) is used to inspect the filter (to) and is covered with a lid. The opening (67) on the slope (c) is used to take in and take out the filter (to), and is closed with a lid. The opening bell η may be formed on the wall (c) on a horizontal extension line on the filter side (FIG. 11). - The inel f+9 is fixed to the side wall (1), and the panel is provided with a switch σC for power supply, a switch συ for starting operation of the motor (g), and a switch σ2 for stopping the motor (Fig. 2).

In the ventilation passage aj connected to the ventilation hole at the bottom tS of the main body αη, there is a wall (1
), and can swing from a horizontal position to an inclined position (
Figures 2 and 2). This dan zer σ leak is adjusted and fixed at a desired opening angle to adjust the suction force.

When using the solenoid (b) drive means, the wall 5
1), both side walls σe perpendicular to the other wall 52, and a space σ partitioned by the rear wall σ connected to these both walls and the ceiling wall σ.
9 (Figs. R and 10), and a solenoid (B), an operating rod (TO), and an arm G are built into this space.

〔Effect of the invention〕

As described above, the present invention is configured such that the filter a3 can swing between the tilted state and the horizontal state, and is configured to capture powder in the tilted state and drop it when returning to the horizontal state. , Its structure is simple, there are few failures, and powder removal is performed reliably.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and 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. Horizontal cross-sectional view along the line ■-■ in Figure 3,
Fig. 5 is a sectional view of the v-V line type in Fig. 3, and Fig. 6 (a) to (
e) is a front view showing a modified example of the suction port, FIG. 7 is a perspective view of the filter, FIG. , Figure 10 shows the X in Figure r.
-X-ray cross-sectional view, Figure 11 is! FIG. 12 is a sectional view taken along the tang-'Mfs line of FIG. 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, and (7) is Main body, (8) Haspray nozzle, (9)
H air outlet for air curtain, αQ is suction member, (
B) is the dust collector body, (B) is the hose, □□□ is the filter, α4 is the fan, (To) is the motor, (4) is the dust box, (G) is the exhaust port, α9 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, C3? ) is the arm, G value is the torsion coil spring,
(C) is the impeller, ■ is the casing, (4'7) is the outlet, (
) is the ventilation hole, and □□□ is the scattered powder. Cause (b)

Claims (1)

[Claims] When spraying anti-set-off powder on the printed surface of printing paper, the powder scattered in the air is sucked together with the air and sent to a filter, and the filter captures the powder. What is claimed is: 1. A dust collection device for a printing press, which is capable of swinging between the two directions, captures powder in an inclined state, and causes it to fall into a dust box upon returning to a horizontal state.