JPH0847896A - Punched-out chip removing device for corrugated cardboard box manufacturing machine - Google Patents

Abstract

PURPOSE:To prevent a sheet from being bent, by vibrating a conveyer belt with the use of a rotary vibrating means so as to vibrate the sheet so as to completely separates cut-out chips from the sheet, and by sucking up the sheet to the conveyer belt with the use of a suction pump. CONSTITUTION:A plurality of conveyer belts 9 (9a to 9d) are arranged in parallel, being wound on a plurality of rollers 6 to 8. Further, underneath thereof, a plurality of second conveyor belts 12 (12a to 12d) are laid in parallel, being wound around a plurality of rollers 10, 11. A rotary vibrating means 24 is crosswisely arranged adjacent either the conveyer belts 9 or the conveyer belts 12. Meanwhile, a plurality of suction boxes 17 which suck up air through several holes formed in the conveyer belts 9, 10 are arranged at the rear surfaces of the conveyer belts 9, 11, opposite to the sheet abutting surface, upstream or downstream of the rotary vibrating means 24 in the sheet conveying direction. Further, a plurality of rotary brushes 20 for raking out cut-out chips are arranged above and below the suction boxes 17, at positions facing the latter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching scrap removing device for removing punching scraps from a corrugated board sheet in a corrugated board box making machine.

[0002]

2. Description of the Related Art FIG. 4 is a side view of a vibration conveyor device 52 which is a conventional punching dust removing device. As shown in FIG. 4, a corrugated cardboard sheet S punched into a predetermined shape by a rotary die cutter is supplied. It is supplied to the vibration conveyor device 52 by the conveyor device 51, and after the scraps are removed, it is discharged to the discharge conveyor device 53. The vibration conveyor device 52 includes a plurality of lower conveyor belts 57 wound between rollers 55 and 56 that are rotatably supported by the machine frame, and rollers 58 and 59 that are also rotatably supported by the machine frame. , 60, a plurality of upper conveyor belts 62 wound between the conveyor belts 5 and 60, and the conveyor belts 5 provided laterally in the conveyor belts 57 and 62.
Rotational oscillation means 64, 64, 64 for vibrating 7, 62
And blowers 65 and 66 provided above the upper conveyor belt 62 for blowing air to remove scraps.

The upper conveyor belts 62, 62, ... Are arranged side by side with a space therebetween, and the lower conveyor belts 57, 5 are arranged side by side.
7, ... Are also arranged side by side with a space provided therebetween, and these upper conveyor belts 62, 62, ... And lower conveyor belts 57 ,.
57, ... Are arranged at different intervals. Further, as shown in FIG. 5, the rotary oscillator 64 periodically conveys the belt striking member 68 at the peripheral portion to the conveyor belts 57, 6 during rotation.
2. A plurality of conveyor belts 5 that are placed in parallel with each other
The whole of 7, 62 is vibrated at the same time so that the separated scraps fall from the space between the conveyor belts. The corrugated cardboard sheet S is sandwiched between the conveyor belts 57 and 62 and conveyed, and the conveyor belts 57 and 62 are vibrated by the rotation oscillating means 64 to separate corrugated cardboard sheet scraps and blower 6
Air is blown by 5, 66 to drop and remove scraps.

[0004]

By the way, in the punching dust removing device using the vibration conveyor device as described above, vibration is transmitted to the corrugated board sheet via the conveyor belt, but the corrugated board sheet is bent during the transportation. Even if the scraps are completely separated from the main body, if the scraps are locked to the main body due to the complicated shape, these scraps cannot be completely removed.

In view of the above, the present invention provides a punching dust removing device for a corrugated board box box machine which is constructed so that the corrugated cardboard sheet is not bent during conveyance and can completely remove the punching dust. It is intended to be provided.

[0006]

The invention according to claim 1 of the present application has been made in view of the above-mentioned circumstances, and is wound around a plurality of rollers and arranged side by side with an interval therebetween. A plurality of first conveyor belts, and a plurality of second conveyor belts provided below the first conveyor belt, wound around a plurality of rollers, and arranged side by side with an interval therebetween. A conveyor belt, a rotation oscillating means arranged laterally with respect to at least one of the first conveyor belt and the second conveyor belt, and an upstream side of the rotation oscillating means in the sheet conveying direction or On the downstream side and on the back surface of the sheet contacting side of each of the plurality of first or second conveyor belts, through a large number of holes formed in the plurality of first or second conveyor belts. Air A plurality of suction boxes that attract the corrugated cardboard sheet to the first or second conveyor belt by suction, and a transverse direction with respect to the first or second conveyor belt above or below facing the plurality of suction boxes. And a plurality of rotating brushes fixed to a rotating shaft rotatably disposed at a predetermined interval and scraping out punching scraps of the corrugated cardboard sheet.

In the invention according to claim 2, a plurality of first conveyor belts, which are wound around a plurality of rollers and are arranged side by side with an interval therebetween, and the first conveyor belts. A plurality of second conveyor belts provided below and wound around a plurality of rollers and juxtaposed with an interval between each other; and an upper back surface of each of the plurality of second conveyor belts. A plurality of first suction boxes for adsorbing a corrugated cardboard sheet to the second conveyor belt by sucking air through a large number of holes provided in the plurality of second conveyor belts; Above the first suction box, is fixed to a rotary shaft rotatably in the lateral direction with respect to the first conveyor belt with a predetermined interval, and scrapes out punching dust of corrugated cardboard sheets. Of the first rotating brush and downstream of the plurality of first suction boxes in the sheet conveying direction, and transverse to at least one of the first conveyor belt and the second conveyor belt. And a plurality of first conveyor belts, which are provided on the lower back surface of each of the plurality of first conveyor belts on the downstream side in the sheet conveying direction from the rotation oscillating means. A plurality of second suction boxes for adsorbing the corrugated cardboard sheet to the first conveyor belt by sucking air through a large number of perforated holes, and the second suction boxes below the plurality of second suction boxes. Is fixed to the rotary shaft rotatably in the lateral direction with respect to the conveyor belt at a predetermined interval and scrapes the punching waste of the corrugated cardboard sheet. A second rotating brush and is characterized in that it comprises an.
Further, air from a blower is blown onto the corrugated cardboard sheet sandwiched and conveyed by the plurality of first conveyor belts and the plurality of second conveyor belts above the rotation oscillating means to punch out corrugated cardboard sheets. A plurality of nozzles for blowing off may be provided.

[0008]

In the invention according to claim 1 of the present invention having the above-mentioned configuration, the corrugated cardboard sheet punched by the die cutter is sandwiched and conveyed by the plurality of first conveyor belts and the plurality of second conveyor belts. Then, at least one of the first conveyor belt and the second conveyor belt is vibrated by the rotation oscillating means, and the corrugated board sheet is also vibrated accordingly and the punching waste is separated. The corrugated cardboard sheet is adsorbed to the first or second conveyor belt by a plurality of suction boxes provided on the upstream side or the downstream side in the sheet conveying direction with respect to the rotation oscillating means, and punched by a plurality of rotating brushes. The scraps or punching scraps retained on the corrugated cardboard sheet body are scraped out and completely removed. At this time, since the corrugated cardboard sheet is adsorbed upward or downward by the plurality of suction boxes, the corrugated cardboard sheet will not be bent even if the punching scraps are scraped out by the plurality of rotary brushes.

According to the second aspect of the invention, the corrugated cardboard sheet punched by the die cutter is
The plurality of first conveyor belts and the plurality of second conveyor belts are sandwiched and conveyed, and the plurality of first suction boxes adsorb the plurality of second conveyor belts and the plurality of first conveyor belts. The rotary brush scrapes out the punching dust and removes it. At this time, since the corrugated cardboard sheet is sucked downward by the plurality of first suction boxes, the corrugated cardboard sheet will not be bent even if the punching scraps are scraped out by the plurality of first rotating brushes. Next, at least one of the first conveyor belt and the second conveyor belt is vibrated by the rotation oscillating means, and the corrugated board sheet is also vibrated accordingly to separate the punching waste, and the plurality of nozzles are used for punching. Debris is blown away. When the corrugated cardboard sheet reaches the positions of the plurality of second suction boxes, the corrugated cardboard sheets are adsorbed by the plurality of first conveyor belts by the plurality of second suction boxes and drooped by the plurality of second rotating brushes. The punched scraps and the punched scraps retained on the corrugated cardboard sheet body are scraped downward to be completely removed. At this time, since the corrugated board sheet is sucked upward by the plurality of second suction boxes, the corrugated board sheet will not be bent even if the punching scraps are scraped out by the plurality of second rotating brushes.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the punching waste removing device of a corrugated board box making machine according to the present invention will be described below with reference to the drawings. FIG. 1 is an overall side view showing a punching waste removing device of a corrugated board box making machine according to the present invention, and FIG. 2 is a side view of a main part thereof. As shown in FIGS. The corrugated cardboard sheet punched into the above shape is conveyed to the punching dust removing device 1 via the feed rolls 2 and 3.

The punching dust removing device 1 has a frame 5, and rollers 6, 7, 8 are rotatably supported at the front end of the frame 5, and a large number of rollers are provided between the rollers 6, 7, 8. The upper conveyor belts 9a, 9a, ... Further, rollers 10 and 11 are rotatably supported below the rollers 6 and 8 of the frame 5, respectively.
A number of first lower conveyor belts 12a between 0 and 11;
12a, ... Are hung over. The first upper conveyor belts 9a are spaced apart from each other, and the first lower conveyor belts 12a are also spaced apart from each other, and the first upper conveyor belts 9a and 12b are spaced apart from each other.
The letters a are arranged at different intervals. A large number of second upper conveyor belts 9b, 9b, ... Are hung around rollers 13, 14 rotatably supported downstream of the first upper conveyor belt 9a of the frame 5 in the sheet conveying direction. . Further, rollers 15 and 16 are rotatably supported below the rollers 13 and 14 of the frame 5, and a large number of second lower conveyor belts 12b, 12b, ... Are hung between the rollers 15 and 16. ing.

Also, each second lower conveyor belt 12
b, 12b, ... Are each provided with a suction box 17, and each suction box 17 has a suction blower 1
8 is connected to the second lower conveyor belt 12b,
The corrugated cardboard sheet is sucked downward through a large number of holes 12b, ... At the upper position facing the suction boxes 17, 17, ..., The rotating brush shaft 19 extends in a direction orthogonal to the sheet conveying direction.
Are rotatably provided, and a large number of rotary brushes 20, 20, ... Are fixedly installed on the rotary brush shaft 19 at predetermined intervals (see FIG. 3). By rotating the rotary brush shaft 19 in the direction opposite to the corrugated board sheet conveying direction,
Punching scraps of the corrugated cardboard sheet conveyed are scraped upward by the rotating brushes 20, 20, ... And dropped.

A large number of third upper conveyor belts 9c, 9c, ... Are provided on the roller 21 and the roller 14 which are rotatably supported downstream of the second upper conveyor belt 9b of the frame 5 in the sheet conveying direction. It has been passed over.
Further, the roller 2 is provided below the roller 21 of the frame 5.
2 is rotatably supported, and a large number of third lower conveyor belts 12c, 12c, ... Are hung between rollers 16 and 22. In addition, the third lower conveyor belt 12c,
A rotating oscillator 24 is provided on the upper back surface of each of the rotating oscillators 12c, ..., And nozzles 25, 25 connected to the blower are provided above the third upper conveyor belts 9c, 9c ,. Third lower conveyor belt 1 by 24
By vibrating 2c, 12c, ..., The corrugated cardboard sheet being conveyed is vibrated to separate punching waste from the corrugated cardboard sheet main body and the nozzles 25, 25 ,.
The air from ... blows out the punching dust.

A large number of fourth upper conveyor belts 9d, 9d, ... Are provided on the roller 26 and the roller 21 which are rotatably supported downstream of the third upper conveyor belt 9c of the frame 5 in the sheet conveying direction. It has been passed over.
Further, the roller 2 is provided below the roller 26 of the frame 5.
7 is rotatably supported, and a large number of fourth lower conveyor belts 12d, 12d, ... Also, each fourth upper conveyor belt 9d,
9d, ... Suction boxes 29 are provided respectively, suction suction blowers 30 are connected to the respective suction boxes 29, and the fourth upper conveyor belts 9d, 9d ,.
The corrugated cardboard sheet is sucked upward through a large number of holes punched in. A rotary brush shaft 31 is rotatably provided at a lower position facing the suction boxes 29, 29, ... In a direction orthogonal to the sheet conveying direction, and the rotary brush shaft 31 has a large number of rotary brushes 3.
2, 32, ... Are fixedly installed at a predetermined interval (see FIG. 3).
reference). By rotating the rotary brush shaft 31 in the direction opposite to the corrugated board sheet conveying direction, punching scraps of the corrugated cardboard sheet conveyed are rotated by the rotary brushes 32, 3.
It is designed so that it can be scraped downward by 2, and dropped.

A large number of conveyor belts 35, 35, ... Are hung between the rollers 33, 34 rotatably supported on the downstream side of the fourth lower conveyor belt 12d of the frame 5 in the sheet conveying direction. ing. Further, a large number of conveyor belts 39, 39, ... Are hung around the roller 34 and a roller 38 rotatably supported by a frame 37 of a stacker 36, which will be described later, and the conveyor belts 39, 39 ,. The corrugated board sheet is conveyed to the stacker 36 by. As shown in FIGS. 1 and 3, the stacker 36 has a frame 41, and the frame 41 has a frame 37 and a lifter 42.
Are supported so as to be able to move up and down via a hydraulic cylinder or the like.
A sheet stopper 43 is mounted on the frame 37 so as to be movable in the front-rear direction with respect to the sheet conveying direction, the roller 38 is rotatably supported, and a lifter 42 is provided with a carry-out conveyor 45 laterally. .

Since this embodiment has the above-mentioned structure, the corrugated cardboard sheet punched by the die cutter is fed through the feed rolls 2 and 3 to the first upper conveyor belts 9a and 9a of the punching dust removing device 1. , And the first lower conveyor belts 12a, 12a, ...
b, 9b, ... And second lower conveyor belts 12b, 1
2b, ... are nipped and conveyed.

Then, the suction boxes 17, 17,
At the position of ..., the second lower conveyor belts 12b, 12b,
The corrugated cardboard sheet is conveyed while being sucked downward through a large number of holes formed in the ...
The punching scraps of the corrugated cardboard sheet that have jumped up by 0, 20, ... Are kicked up and dropped. At this time, since the corrugated cardboard sheet is sucked downward by the suction boxes 17, 17, the corrugated cardboard sheet will not be displaced and bent even if the rotary brushes 20, 20, ...

Next, when the corrugated board sheet is sandwiched and conveyed by the third upper conveyor belts 9c, 9c, ... And the third lower conveyor belts 12c, 12c ,. Conveyor belts 12c, 12
Since the c, ... Are vibrated, the third upper conveyor belts 9c, 9c ,.
Corrugated cardboard sheets sandwiched between c, 12c, ... Are completely separated from the punching dust by vibration, and the nozzle 2
Punching dust is blown downward by the air from 5, 25, ....

Then, the corrugated board sheet is nipped and conveyed by the fourth upper conveyor belts 9d, 9d, ... And the fourth lower conveyor belts 12d, 12d ,. The corrugated cardboard sheet is conveyed while being sucked upward through a large number of holes formed in the upper conveyor belts 9d, 9d ,. The punched out scraps that are locked are scraped downward and dropped. At this time, since the corrugated cardboard sheet is sucked upward by the suction boxes 29, 29, ..., Even when the rotary brushes 32, 32 ,. Then, the corrugated cardboard sheet includes the fourth upper conveyor belts 9d, 9d, ... And the fourth lower conveyor belt 12
d, 12d, ... From the rear end of the conveyor 35, 35 ,.
And the transfer conveyors 39, 39, and the stacker 3
6 is transported.

The corrugated cardboard sheets conveyed from the conveyors 39, 39, ... Are regulated at a predetermined position by the sheet stopper 43, and are stacked on the carry-out conveyor 45 of the lifter 42, and new corrugated cardboard sheets are stacked. The frame 37, the sheet stopper 43, and the rear end of the roller 38 are gradually raised by the newly added stack. Then, when a predetermined number of cardboard sheets are stacked on the carry-out conveyor 45, the lifter 42 and the carry-out conveyor 4
5 descends to a predetermined position, and the corrugated cardboard sheets stacked on the carry-out conveyor 45 are transferred onto the carry-out conveyor (not shown).

Therefore, the suction boxes 17, 17,
Since the cardboard sheet is adsorbed by ..., 29, 29, ..., even if the punching scraps are scraped out by the rotary brushes 20, 20, ..., 32, 32, ..., the corrugated cardboard sheet is not displaced and bent. , 32, it is possible to reliably scrape out the punching dust. Further, since the rotating brushes are provided on the upper and lower sides, it is possible to reliably scrape out and drop the punching scraps that have bounced upward and the punching scraps that have drooped downward. Further, the third lower conveyor belts 12c, 12c, ...
The corrugated cardboard sheet nipped and conveyed by the third upper conveyor belts 9c, 9c, ... And the third lower conveyor belts 12c, 12c ,. Further, the air from the nozzles 25, 25, ... Can blow the punching dust downward.

In the above embodiment, the suction box 17 and the rotary brush 20 are provided on the upstream side of the rotational oscillation means in the sheet conveying direction, and the suction box 29 and the rotary brush 32 are provided on the downstream side of the rotational oscillation means in the sheet conveying direction. However, the suction box and the rotary brush may be provided on either the upstream side or the downstream side. Furthermore, although the nozzle 25 is used in the above-described embodiment, the nozzle 25 can be omitted.

[0023]

As described above, according to the invention described in claim 1 of the present application, at least one of the plurality of first conveyor belts or the plurality of second conveyor belts is rotated by the rotation oscillating means. The conveyor belt is vibrated, and the corrugated board sheet is also vibrated accordingly, so that the punching waste can be completely separated. Further, since the corrugated cardboard sheet is adsorbed by the plural suction boxes onto the plural first or second conveyor belts, the corrugated cardboard sheet is not displaced and bent, and the punched scraps or corrugated cardboard sheets hung down by the plural rotary brushes. The punching debris retained on the body can be scraped out and removed almost completely.

Further, according to the second aspect of the present invention, since the corrugated cardboard sheet is adsorbed by the first suction box and the second suction box, the first rotary brush and the second rotary brush punch out scraps. Even if you scrape out, the corrugated cardboard sheet will not shift and bend,
Moreover, the first rotary brush provided above and the second rotary brush provided below ensure that the punching scraps that bounce upward, the punching scraps that hang downward, and the punching scraps that are locked to the corrugated cardboard sheet main body It can be scraped out and dropped to more completely remove punching debris. In addition, a plurality of first conveyor belts or a plurality of second conveyor belts are provided by the rotary oscillation means.
By vibrating at least one of the conveyor belts, the corrugated cardboard sheet also vibrates, and the punching waste can be completely separated. Further, since a plurality of nozzles are arranged above the rotation oscillating means, the air blown from the nozzles can blow off the punched chips of the corrugated board sheet.

[Brief description of drawings]

FIG. 1 is an overall side view showing a punching dust removing device of a corrugated board box making machine according to the present invention.

FIG. 2 is a side view of essential parts showing a punching waste removing device of the cardboard box making machine according to the present invention.

FIG. 3 is a plan view showing a punching dust removing device of a corrugated board box making machine according to the present invention.

FIG. 4 is a side view showing a conventional punching dust removing device.

FIG. 5 is a perspective view showing a rotation oscillating means of a conventional punching dust removing device.

[Explanation of symbols]

1 Punching Waste Removal Device 2, 3 Feed Roll 5 Frame 6, 7, 8 Roller 9a First Upper Conveyor Belt 9b Second Upper Conveyor Belt 9c Third Upper Conveyor Belt 9d Fourth Upper Conveyor Belt 10, 11 Roller 12a 1st lower conveyor belt 12b 2nd lower conveyor belt 12c 3rd lower conveyor belt 12d 4th lower conveyor belt 13,14,15,16,21,22,26,27
Roller 17 Suction Box 20 Rotating Brush 24 Rotating Oscillator 25 Nozzle 29 Suction Box 32 Rotating Brush 35 Transport Conveyor 36 Stacker 39 Transport Conveyor

Claims (3)

[Claims] 1. A plurality of first conveyor belts, which are wound around a plurality of rollers and are arranged in parallel with each other with a gap therebetween, and a plurality of first conveyor belts provided below the first conveyor belts. A plurality of second conveyor belts wound around rollers and arranged side by side with an interval between each other; and for at least one of the first conveyor belt and the second conveyor belt, And a rotation oscillating means laterally arranged, and provided on the upstream side or the downstream side of the rotation oscillating means in the sheet conveying direction and on the back surface of each of the plurality of first or second conveyor belts on the sheet contact side. First of multiple
Alternatively, a plurality of suction boxes for adsorbing a corrugated cardboard sheet to the first or second conveyor belt by sucking air through a large number of holes formed in the second conveyor belt, and facing the plurality of suction boxes. A plurality of rotary brushes fixed above and below the rotary shaft rotatably in the lateral direction with respect to the first or second conveyor belt with a predetermined interval, and scraping out punching dust of corrugated cardboard sheets. A punching dust removing device for a corrugated board box making machine, comprising: 2. A plurality of first conveyor belts, which are wound around a plurality of rollers and are arranged in parallel with each other with a space therebetween, and a plurality of first conveyor belts provided below the first conveyor belts. A plurality of second conveyor belts which are wound around the rollers and are arranged side by side with an interval between each other, and a plurality of second conveyor belts which are provided on the upper back surfaces of the respective second conveyor belts. A plurality of first suction boxes for adsorbing a corrugated board sheet to a second conveyor belt by sucking air through a large number of holes formed in the conveyor belt, and above the plurality of first suction boxes. A plurality of first rotary brushes fixed to a rotary shaft rotatably laterally with respect to the first conveyor belt at a predetermined interval, and scraping out punching dust of a corrugated cardboard sheet; Rotation oscillating means arranged downstream of the plurality of first suction boxes in the sheet conveying direction and laterally with respect to at least one of the first conveyor belt and the second conveyor belt. A plurality of holes provided on the lower back surface of each of the plurality of first conveyor belts on the downstream side of the rotation oscillating means in the sheet conveying direction and on the plurality of first conveyor belts. A plurality of second suction boxes for adsorbing a corrugated board sheet to the first conveyor belt by sucking air through the second suction boxes, and a lateral direction with respect to the second conveyor belt below the plurality of second suction boxes. A plurality of second rotating brushes fixed to a rotating shaft rotatably disposed at a predetermined interval and scraping out punching scraps of the corrugated board sheet; A punching scrap removing device for a corrugated board box making machine, comprising: 3. A corrugated cardboard sheet is blown with air from a blower onto the corrugated cardboard sheet that is sandwiched and conveyed by the plurality of first conveyor belts and the plurality of second conveyor belts above the rotational oscillation means. 3. A punching scrap removing device for a corrugated board box making machine according to claim 2, further comprising a plurality of nozzles for blowing off the punching scraps.