CN214774779U

CN214774779U - Paper scrap recovery device of printing machine

Info

Publication number: CN214774779U
Application number: CN202120179609.5U
Authority: CN
Inventors: 沈圣伟
Original assignee: Chongqing Chongbao Printing Co ltd
Current assignee: Chongqing Chongbao Printing Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-19
Anticipated expiration: 2031-01-22

Abstract

The utility model belongs to newspaper printing field, concretely relates to printing machine wastepaper recovery unit. Comprises a fan bin, a cyclone bin and a collecting bin; a centrifugal fan is installed in the fan bin, an air inlet of the centrifugal fan is connected with a feeding pipe used for sucking paper scraps, a feeding hole of the feeding pipe is connected with the printing mechanism, an air outlet of the centrifugal fan is connected with a conveying pipe, and the conveying pipe extends into the cyclone bin; the cyclone bin is cylindrical, the top of the cyclone bin is sealed, a circular air outlet pipe is arranged at the center of the top of the cyclone bin, the air outlet pipe vertically and downwardly extends into the cyclone bin, the bottom of the cyclone bin is funnel-shaped, the bottom of the cyclone bin is connected with a discharge pipe, and the lower end of the discharge pipe extends into the collection bin; the conveying pipe is cut into the cyclone bin from the side surface of the cyclone bin. The utility model provides a printing machine wastepaper recovery unit has solved the problem that prior art can't collect the wastepaper.

Description

Paper scrap recovery device of printing machine

Technical Field

The utility model belongs to newspaper printing field, concretely relates to printing machine wastepaper recovery unit.

Background

In newspaper printing shops, there is often a large accumulation of cut pieces of paper that wander around and can cover the mechanical parts and electrical components of the printing press, causing frequent electrical and mechanical failures and also polluting the shop environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a printing machine wastepaper recovery unit has solved the problem that prior art can't collect the wastepaper.

In order to achieve the aim, the utility model provides a paper scrap recovery device of a printing machine, which comprises a fan bin, a cyclone bin and a collection bin;

a centrifugal fan is installed in the fan bin, an air inlet of the centrifugal fan is connected with a feeding pipe used for sucking paper scraps, a feeding hole of the feeding pipe is connected with the printing mechanism, an air outlet of the centrifugal fan is connected with a conveying pipe, and the conveying pipe extends into the cyclone bin;

the cyclone bin is cylindrical, the top of the cyclone bin is sealed, a circular air outlet pipe is arranged at the center of the top of the cyclone bin, the air outlet pipe vertically and downwardly extends into the cyclone bin, the air outlet pipe can communicate the inside of the cyclone bin with the outside, the bottom of the cyclone bin is funnel-shaped, a discharge pipe is connected to the bottom of the cyclone bin, and the lower end of the discharge pipe extends into the collection bin;

the conveying pipe is cut into the cyclone bin from the side surface of the cyclone bin, and the outlet of the conveying pipe is opposite to the inner wall of the cyclone bin.

Furthermore, a flow guide baffle is vertically arranged on the inner wall of the air outlet pipe.

Furthermore, a support frame is installed on the outer wall of the cyclone bin, and the support frame supports and fixes the cyclone bin.

Further, the support frame sets up in whirlwind storehouse both sides.

Furthermore, the tail end of the discharge pipe extends into two thirds of the height of the collecting bin.

Further, the inlet pipe is followed the top in cyclone storehouse stretches into in the cyclone storehouse, and the position that the inlet pipe stretched into is not less than the bottom end of air-out pipe.

The beneficial effects of the utility model reside in that: the wastepaper of the printing machine enters into the cyclone bin through the suction of the centrifugal fan, then the air is discharged from the air outlet pipe through the separation of the cyclone bin, and the wastepaper enters into the collecting bin from the discharging pipe below. The paper scrap is effectively prevented from flying around, so that the damage of electric elements and mechanical parts and the pollution to the workshop environment are avoided.

Drawings

Fig. 1 is a sectional view of a paper dust collecting apparatus of a printing press.

Fig. 2 is a plan view of a paper dust collecting device of a printing press.

The reference numerals include: the device comprises a fan bin 1, a centrifugal fan 11, a feeding pipe 12, a conveying pipe 13, a cyclone bin 2, an air outlet pipe 21, a discharging pipe 22, a collecting bin 3, a flow guide baffle 4 and a supporting frame 5.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The embodiment is basically as shown in the attached figures 1 and 2, and the wastepaper recovery device of the printing machine comprises a fan bin 1, a cyclone bin 2 and a collection bin 3; the fan bin 1 provides power to suck paper scraps on a paper cutting roller, the lower part of a folding machine and the vicinity of a middle knife of the printing machine into the cyclone bin 2, the cyclone bin 2 separates the paper scraps from air, the air is upwards discharged from the air outlet pipe 21, and the paper scraps fall downwards into the collection bin 3.

A centrifugal fan 11 is installed in the fan bin 1, an air inlet of the centrifugal fan 11 is connected with a feeding pipe 12 used for sucking paper scraps, a feeding hole of the feeding pipe 12 is connected with a printing mechanism, an air outlet of the centrifugal fan 11 is connected with a conveying pipe 13, and the conveying pipe 13 extends into the cyclone bin 2; the air inlet of the centrifugal fan 11 is connected to a feed pipe 12, and the feed pipe 12 is connected to the paper cutting cylinder, the lower part of the folding machine and the vicinity of the middle knife of the printing machine, so that the generated paper dust is sucked away. The paper scraps then pass through the driving of the fan, and then directly enter the cyclone bin 2 through the conveying pipe 13. The collecting bin 3 collects the paper scraps falling from the cyclone bin 2 together and then periodically disposes the paper scraps.

The cyclone bin 2 is cylindrical, the top of the cyclone bin is sealed, a circular air outlet pipe 21 is arranged in the center of the top of the cyclone bin 2, the air outlet pipe 21 vertically and downwardly extends into the cyclone bin 2, the air outlet pipe 21 can communicate the inside of the cyclone bin 2 with the outside, the bottom of the cyclone bin 2 is funnel-shaped, a discharge pipe 22 is connected to the bottom of the cyclone bin 2, and the lower end of the discharge pipe 22 extends into the collection bin 3; the upper part of the cyclone bin 2 is in a barrel shape, the lower part of the cyclone bin is in a funnel shape, and a round air outlet pipe 21 is arranged in the center of the top of the cyclone bin 2, so that air can be conveniently discharged from the cyclone bin 2. The lower part of the cyclone bin 2 is connected with a discharge pipe 22, so that the wastepaper can be discharged into the collection bin 3 from the discharge pipe 22.

The conveying pipe 13 is cut into the cyclone bin 2 from the side surface of the cyclone bin 2, and the outlet of the conveying pipe 13 is over against the inner wall of the cyclone bin 2. The conveying pipe 13 is cut into the cyclone bin 2 from the side surface of the cyclone bin 2, and the cutting angle is 60 degrees (the cutting angle is not limited to 60 degrees, in practice, as long as the outlet of the conveying pipe 13 is opposite to the inner wall of the cyclone bin 2, so that the cyclone bin 2 can form cyclone wind inside). The paper scraps and air conveyed into the cyclone bin 2 by the conveying pipe 13 can make a rotary motion on the inner wall of the cyclone bin 2 by taking the center of the cyclone bin 2 as a circle center. When the paper scraps and the air do the rotary motion, the paper scraps gradually fall downwards into the collecting bin 3 due to the larger gravity, and the air is discharged outwards from the air outlet pipe 21 after the air does the rotary motion for a period of time in the cyclone bin 2.

And a flow guide baffle 4 is vertically arranged on the inner wall of the air outlet pipe 21. The inner wall of the air outlet pipe 21 is vertically provided with 1 diversion baffle 4. When the diversion baffle 4 is not arranged, the air discharged from the air outlet pipe 21 is in a cyclone shape, so that a small amount of paper scraps are discharged from the air outlet pipe 21 along the cyclone. Therefore, the diversion baffle 4 is arranged in the air outlet pipe 21 to destroy the rotary motion of the air in the air outlet pipe 21 and avoid a small amount of paper scraps from being discharged outwards.

The outer wall of the cyclone bin 2 is provided with a support frame 5, and the support frame 5 supports and fixes the cyclone bin 2. The outer wall of the cyclone bin 2 is provided with a support frame 5, so that the cyclone bin 2 is fixed, and the cyclone bin 2 is prevented from being toppled.

The support frames 5 are arranged on two sides of the cyclone bin 2.

The end of the discharge pipe 22 extends into two thirds of the height of the collecting chamber 3. A large amount of paper dust is discharged from the end of the discharge pipe 22, and therefore, the end of the discharge pipe 22 must be inserted into the collection chamber 3 to prevent paper dust from drifting out of the collection chamber 3. Meanwhile, because the collecting bin 3 needs to collect paper scraps, a storage space needs to be reserved in the collecting bin 3. In conclusion, the end of the feeding pipe 12 is arranged at the two-thirds height of the collecting bin 3, so that the paper scraps can be effectively prevented from floating out of the collecting bin 3, and meanwhile, a large amount of space is reserved in the collecting bin 3 for storing the paper scraps.

The inlet pipe 12 is followed the top in cyclone 2 stretches into in the cyclone 2, and the position that the inlet pipe 12 stretched into is not less than the bottom end of air-out pipe 21. The wastepaper and the air discharged from the discharge pipe 22 move in the gap between the inner wall of the cyclone bin 2 and the outer wall of the air outlet pipe 21, so that a better convolution effect can be realized, and the separation effect is better.

The following is further detailed by the specific embodiments: the centrifugal fan 11 conveys paper scraps on the paper cutting cylinder, the lower part of the folding machine and the vicinity of the middle knife of the printing machine to the inside of the cyclone bin 2 through a feed pipe 12 and a delivery pipe 13. The air and paper scraps delivered by the delivery pipe 13 start to make a rotary motion in the cyclone bin 2, and because the paper scraps have a certain weight, the paper scraps fall downwards through the discharge pipe 22 into the collection bin 3, and the air is gradually discharged from the air outlet pipe 21 to the outside.

When two thirds of the paper scraps in the collecting bin 3 are collected, the paper scraps in the collecting bin 3 are cleaned.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a printing machine wastepaper recovery unit which characterized in that: comprises a fan bin (1), a cyclone bin (2) and a collection bin (3);

a centrifugal fan (11) is installed in the fan bin (1), an air inlet of the centrifugal fan (11) is connected with a feeding pipe (12) used for sucking paper scraps, a feeding hole of the feeding pipe (12) is connected with a printing mechanism, an air outlet of the centrifugal fan (11) is connected with a conveying pipe (13), and the conveying pipe (13) extends into the cyclone bin (2);

the cyclone bin (2) is in a barrel shape, the top of the cyclone bin is sealed, a round air outlet pipe (21) is arranged in the center of the top of the cyclone bin (2), the air outlet pipe (21) vertically and downwardly extends into the cyclone bin (2), the air outlet pipe (21) can communicate the inside of the cyclone bin (2) with the outside, the bottom of the cyclone bin (2) is funnel-shaped, a discharge pipe (22) is connected to the bottom of the cyclone bin (2), and the lower end of the discharge pipe (22) extends into the collection bin (3);

the conveying pipe (13) is cut into the cyclone bin (2) from the side face of the cyclone bin (2), and the outlet of the conveying pipe (13) is opposite to the inner wall of the cyclone bin (2).

2. A press wastepaper recovery apparatus according to claim 1, wherein: and a flow guide baffle (4) is vertically arranged on the inner wall of the air outlet pipe (21).

3. A press wastepaper recovery apparatus according to claim 1, wherein: the outer wall of the cyclone bin (2) is provided with a support frame (5), and the support frame (5) supports and fixes the cyclone bin (2).

4. A press wastepaper recovery apparatus according to claim 3, wherein: the support frames (5) are arranged on two sides of the cyclone bin (2).

5. A press wastepaper recovery apparatus according to claim 1, wherein: the end of the discharge pipe (22) extends into the two thirds of the height of the collecting bin (3).

6. A press wastepaper recovery apparatus according to claim 1, wherein: the inlet pipe (12) is followed the top in cyclone storehouse (2) stretches into in cyclone storehouse (2), and the position that inlet pipe (12) stretched into is not less than the bottom of air-out pipe (21) is terminal.