CN215276292U

CN215276292U - Air suction mechanism of printing machine

Info

Publication number: CN215276292U
Application number: CN202121285656.4U
Authority: CN
Inventors: 黎海洋
Original assignee: Nanning Fangda Printing Co ltd
Current assignee: Nanning Fangda Printing Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-24
Anticipated expiration: 2031-06-09

Abstract

The utility model belongs to the technical field of the printing machine, concretely relates to printing machine mechanism of induced drafting, include: the air exhaust pipeline is internally provided with an exhaust fan, and the lower end of the exhaust pipeline is provided with an air suction port; a filter screen is arranged at the air suction opening; a first positioning pin and a second positioning pin are arranged on one side of the air suction pipeline, which is provided with the air suction inlet; the exhaust pipeline is communicated with the air suction pipeline and is arranged above the air suction pipeline; a first supporting plate and a second supporting plate are respectively arranged on two sides below the exhaust pipeline; the dust removal assembly is arranged on the side surface of the air suction pipeline and is used for removing dust impurities adsorbed on the filter screen; the dust removal assembly comprises a driving motor, a transmission rod, a driving gear, a driven gear and a scraping rod. The utility model discloses can solve the excessive need manual work of dust accumulation on the filter screen and dismantle the extravagant manpower of clearance and hinder the problem of printing production time, have better market perspective.

Description

Air suction mechanism of printing machine

Technical Field

The utility model belongs to the technical field of the printing machine, concretely relates to printing machine mechanism of induced drafting.

Background

A printer is a machine that prints characters and images. Modern printing machines generally consist of mechanisms for plate loading, coating and grinding, stamping, paper feeding and the like. The working principle of the printing machine is as follows: the characters and images to be printed are made into printing plates, which are installed on a printing machine, then ink is coated on the printing plates by a person or a printing machine, and then the printing plates are directly or indirectly transferred onto paper or other printing stocks (such as textiles, metal plates, plastics, leather, wood plates, glass and ceramics), thereby duplicating the printed matters identical to the printing plates. The invention and the development of the printing machine play an important role in the propagation of human civilization and culture.

The existing printing machine needs to exhaust waste gas generated in the printing process through an air suction mechanism in the printing process. Application number CN201920221586.2 discloses a printing machine device that induced drafts connects main exhaust column through setting up updraft ventilator, and updraft ventilator's inlet scoop induced drafts towards the printing unit to set up the detachable filter screen in updraft ventilator and filter impurity, avoid impurity to block up the ventilation pipe influence exhaust efficiency that induced drafts in long-term use. However, in the long-term use process, the impurity dust adsorbed on the filter screen is too much, and the air suction and exhaust efficiency can not be influenced by timely removing the impurity dust, and at the moment, the filter screen needs to be manually disassembled to clean the dust and impurities, so that the labor is wasted, the number of the filter screens is large, the time spent in cleaning is long, and the printing production time can be delayed.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a printing machine mechanism of induced drafting to solve the problem that dust accumulation too much needs artifical the dismantlement to clear up extravagant manpower and delay printing production time on the filter screen.

In order to achieve the above object, the present invention provides the following technical solutions:

an air suction mechanism of a printing press, comprising:

the air exhaust pipeline is internally provided with an exhaust fan, and the lower end of the exhaust pipeline is provided with an air suction port; a filter screen is arranged at the air suction opening; a first positioning pin and a second positioning pin are arranged on one side of the air suction pipeline, which is provided with the air suction inlet;

the exhaust pipeline is communicated with the air suction pipeline and is arranged above the air suction pipeline; a first supporting plate and a second supporting plate are respectively arranged on two sides below the exhaust pipeline;

the dust removal assembly is arranged on the side surface of the air suction pipeline and is used for removing dust impurities adsorbed on the filter screen; the dust removal assembly comprises a driving motor, a transmission rod, a driving gear, a driven gear and a scraping rod; the driving motor is fixed on the first supporting plate; one end of the transmission rod is connected with an output shaft of the driving motor, and the other end of the transmission rod is rotatably connected with the second supporting plate; the driving gear is arranged on the transmission rod and can rotate along with the transmission rod; the driven gear is arranged on the second positioning pin and is in rotary connection with the second positioning pin; the driven gear is meshed with the driving gear, and one side of the driven gear, which is back to the air suction pipeline, is provided with a bolt; the upper end of the scraping rod is hinged with the first positioning pin, and the lower end of the scraping rod is provided with a scraping blade; the position of the scraping blade corresponds to the position of the air suction opening; the middle part of the scraping rod is provided with a sliding groove, and the sliding groove is in sliding fit with the bolt.

Preferably, a plurality of limiting plates are arranged below the exhaust duct, and the lower ends of the limiting plates are penetrated by the transmission rod and are rotatably connected with the transmission rod.

Preferably, the exhaust fan is communicated with the exhaust pipeline through a connecting pipeline, and a venturi tube is arranged in the connecting pipeline.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses an air suction mechanism of a printing machine, an exhaust fan is arranged in an air suction pipeline, and the air suction mechanism can be matched with an exhaust pipeline to collect and concentrate printing waste gas; venturi tubes are arranged in the connecting pipelines of the exhaust fan and the exhaust pipeline, so that the gas flow in the connecting pipelines can be accelerated, and the collecting speed of printing waste gas is accelerated.

(2) The utility model discloses a printing machine suction mechanism, suction opening department of suction duct lower extreme is equipped with the filter screen, can filter the dust impurity in the printing waste gas, avoids blockking up the intercommunication pipeline and influences the efficiency of induced drafting; the dust removal subassembly passes through driving motor drive driving gear and drives driven gear and rotate, and when driven gear rotated, it uses locating pin one to strike off as the reciprocal swing of axle to scrape the pole, scrapes the doctor-bar of pole lower extreme and can strike off the absorptive dust impurity of filter screen, is favorable to improving the efficiency of induced drafting, can avoid the manual work to dismantle the filter screen simultaneously and clear up extravagant manpower and delay the condition emergence of printing production time.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a dust extraction assembly of the present invention;

fig. 3 is a schematic view of the engagement of the driving gear and the driven gear of the present invention;

description of the main reference numerals:

1. an air extraction duct; 2. a filter screen; 3. an exhaust duct; 4. a dust removal assembly; 5. a first support plate; 6. A second support plate; 7. a first positioning pin; 8. a second positioning pin; 9. a drive motor; 10. a transmission rod; 11. A driving gear; 12. a driven gear; 13. a scraping rod; 14. a bolt; 15. scraping a blade; 16. a chute; 17. A limiting plate; 18. connecting a pipeline; 19. a printing press.

Detailed Description

The technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the technical personnel in the field without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected internally to two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the drawings, an air suction mechanism of a printing machine comprises:

an exhaust fan is arranged in the exhaust pipeline 1, and an exhaust inlet is formed in the lower end of the exhaust pipeline 1; a filter screen 2 is arranged at the air suction opening; a first positioning pin 7 and a second positioning pin 8 are arranged on one side of the air suction pipeline 1, which is provided with an air suction opening;

the exhaust pipeline 3 is communicated with the exhaust pipeline 1 and is arranged above the exhaust pipeline 1; a first supporting plate 5 and a second supporting plate 6 are respectively arranged on two sides below the exhaust pipeline 3;

the dust removal component 4 is arranged on the side surface of the air draft pipeline 1 and used for removing dust impurities adsorbed on the filter screen 2; the dust removal assembly 4 comprises a driving motor 9, a transmission rod 10, a driving gear 11, a driven gear 12 and a scraping rod 13; the driving motor 9 is fixed on the first supporting plate 5; one end of the transmission rod 10 is connected with an output shaft of the driving motor 9, and the other end is rotatably connected with the second supporting plate 6; the driving gear 11 is arranged on the transmission rod 10 and can rotate along with the transmission rod 10; the driven gear 12 is arranged on the second positioning pin 8 and is in rotary connection with the second positioning pin 8; the driven gear 12 is meshed with the driving gear 11, and one side of the driven gear, which is back to the air draft pipeline 1, is provided with a bolt 14; the upper end of the scraping rod is hinged with the first positioning pin 7, and the lower end of the scraping rod is provided with a scraping blade 15; the position of the scraping blade 15 corresponds to the position of the air suction opening; the middle part of the scraping rod is provided with a sliding groove 16, and the sliding groove 16 is in sliding fit with the bolt 14.

In the embodiment, a plurality of limit plates 17 are arranged below the exhaust duct 3, and the lower ends of the limit plates 17 are penetrated by the transmission rod 10 and are rotatably connected with the transmission rod 10. The exhaust fan is communicated with the exhaust pipeline 3 through a connecting pipeline 18, and a Venturi tube is arranged in the connecting pipeline 18.

The working principle is as follows: the utility model discloses a 19 mechanisms that induced drafts of printing machine, before carrying out printing waste gas and collecting, whether need confirm earlier that scrape doctor-bar 15 of pole 13 below shelters from the filter screen 2 of suction opening department. The air suction opening faces the printer 19, when the scraping blade 15 below the scraping rod 13 shields the filter screen 2 at the air suction opening, the driving motor 9 is started to move the scraping blade 15 away from the filter screen 2, and the air suction speed is prevented from being reduced; when the scraping blade 15 below the scraping rod 13 does not shield the filter screen 2 at the air suction port, the printer 19 starts printing work, and at the moment, an exhaust fan in the exhaust pipeline 1 is started to collect printing waste gas; printing waste gas is sucked into the connecting pipeline 18 through the air suction opening and then enters the exhaust pipeline 3 through the connecting pipeline 18, and finally the printing waste gas enters external waste gas collecting and processing equipment for processing through the exhaust pipeline 3; a venturi tube is provided in the connecting pipe 18, and the flow of gas in the connecting pipe 18 is accelerated by the specific structure of the venturi tube, thereby accelerating the collecting rate of the printing off-gas.

When the printing work is finished or a large amount of dust and impurities are adhered to the filter screen 2, the printing is stopped, the exhaust fan stops working, then the driving motor 9 is started, the driving motor 9 drives the transmission rod 10 to rotate, and further the driving gear 11 on the transmission rod 10 is driven to rotate; the driven gear 12 is meshed with the driving gear 11, and when the driving gear 11 rotates, the driven gear 12 also rotates together; the driven gear 12 is provided with a bolt 14, and the bolt 14 is positioned in a chute 16 of the scraping rod 13; because the upper end of the scraping rod 13 is hinged on the positioning pin I7 above the driven gear 12, when the driven gear 12 rotates, the bolt 14 can slide in the chute 16 and drive the scraping rod 13 to swing back and forth; when the scraping rod 13 swings back and forth, the scraping blade 15 at the lower end of the scraping rod 13 can scrape off dust and impurities on the filter screen 2. The utility model discloses a printing machine mechanism of induced drafting can solve filter screen 2 and go up the too much manual dismantlement of dust accumulation need and clear up extravagant manpower and hinder the problem of printing production time, has better market perspective.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A printing machine mechanism that induced drafts, its characterized in that includes:

2. The printing press air suction mechanism according to claim 1, wherein a plurality of limiting plates are arranged below the air exhaust pipeline, and the lower ends of the limiting plates are penetrated by the transmission rod and are rotatably connected with the transmission rod.

3. The printer mechanism that induced drafts of claim 1, wherein, the air exhauster communicates with exhaust duct through a connecting pipe, be equipped with venturi in the connecting pipe.