Dust removal device of printing machine

Abstract

The utility model relates to a dust removal device of a printing machine in the field of dust removal devices, which comprises a rack and a conveying belt arranged on the rack, the conveying belt is composed of a driving roller, a driven roller and two supports, one tail end of the driving roller is connected with a driving piece, annular flannelette is sleeved on the driving roller and the driven roller, and the two supports are arranged on the rack. A dust removal notch is formed in the surface of the annular flannelette, a roller is connected to the two supports, a dust suction cover is connected between the two supports, a dust suction cavity is formed in the dust suction cover, a dust removal roller is connected into the dust suction cavity, and a dust suction channel is formed in the side face of the dust suction cover; dust generated when printed matter makes contact with annular flannelette can be further brushed off through the roller, meanwhile, the lower surface of the printed matter can make contact with the dust removal roller connected into the dust collection cover, dust removal can be conducted on the lower surface of the printed matter, and the fallen dust penetrates through the dust removal groove opening, falls into the dust collection cavity to be collected and is discharged through the dust collection channel. And the dedusting quality and dedusting efficiency of printed matters are improved.

Description

Technical Field

[0001] The utility model relates to the field of dust removal devices, in particular to a dust removal device for a printing press. Background Art

[0002] With the continuous development of printing technology, the quality and efficiency of printed products have become the focus of the industry. During the printing process, especially in the printing process of self-adhesive paper, dust, particles and other impurities generated on the paper surface or inside the equipment not only affect the printing quality, but also may cause failure and wear of the printing machine equipment, thereby increasing production costs and maintenance difficulties. Before printing begins, pre-dust removal operations are usually performed, which includes using a vacuum cleaner or cleaning tools to remove dust and debris from the surface of the printed piece and the surrounding environment to reduce their impact on the printed product.

[0003] Dust removal devices, as a kind of equipment specially used to remove dust, particles and other impurities, are widely used in many fields such as industrial production, construction, and agricultural breeding. In the printing industry, dust removal devices are mainly used to remove dust and impurities generated during the printing process of printed materials to ensure the clarity and quality of printed materials. At the same time, dust removal devices can also effectively reduce equipment wear and failure rate and increase the service life of equipment. The basic structure of the existing printing press dust removal device usually includes a dust removal box, a fan, a filter, and a dust exhaust port. The fan generates negative pressure and sucks the dust-containing air into the dust removal box. After the filtering action of the filter, the dust and impurities are trapped on the filter, and the clean air is discharged through the dust exhaust port.

[0004] However, the existing dust removal devices still have the following defects during actual use: they are not effective in capturing and removing fine particles from printed products, making it difficult to meet the requirements of high-precision printing; and after the existing printing presses generally use a dust removal structure to remove dust from the surface of their printed products, the dust on the surface is not easy to recover, resulting in the phenomenon of floating in the air, and then adhering to the surface of the printed products, resulting in poor dust removal effect, affecting the dust removal quality and efficiency, and causing adverse effects on operators and the surrounding environment. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide a dust removal device for a printing press to solve the technical problems that the dust removal device in the above background technology has poor dust removal effect on the surface of printed matter and is difficult to recycle after dust removal, thus affecting the dust removal quality and dust removal efficiency.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] A dust removal device for a printing press comprises a frame and a conveyor belt arranged on the frame, the conveyor belt consists of an active roller, a driven roller and two brackets, the two brackets are installed on the frame, the active roller and the driven roller are both installed between the two brackets, one end of the active roller is connected to a driving member, an annular flannel is sleeved on the active roller and the driven roller, one end of the annular flannel passes through the active roller and the driven roller in sequence, and is closed-loop connected to the other end of the annular flannel, a plurality of dust removal grooves are formed on the surface of the annular flannel, the two brackets are connected to relatively distributed mounting seats, the mounting seats are connected to a roller, and a dust hood is connected between the two brackets, a dust suction cavity is formed inside the dust hood, a dust removal roller is connected in the dust suction cavity, and a dust suction channel connected to the dust suction cavity is provided on the side of the dust hood.

[0008] Further in the above description, the driving member is composed of a driving wheel, a driven wheel, a belt and a driving motor. The driving wheel is coaxially connected to one end of the driving roller, the driving motor is installed on the frame through a motor seat, and the motor shaft of the driving motor is coaxially connected to the driven wheel. One end of the belt passes through the driving wheel and the driven wheel in sequence, and is closed-loop connected to the other end of the belt. The driving motor can drive the driving roller to drive the annular flannel cloth to rotate, so that the surface of the printed product can be contact-cleaned by the annular flannel cloth to prevent dust from adhering to the surface of the printed product, thereby improving subsequent printing quality and efficiency.

[0009] Further in the above description, the mounting seat is installed on the bracket, the roller is installed on the mounting seat, and the outer surface of the roller is in contact with the outer surface of the annular velvet cloth. The printed matter is driven by the conveyor belt so that the printed matter is located between the roller and the annular velvet cloth, thereby brushing the printed matter to remove dust and particles on the surface.

[0010] Further in the above description, the dust collection cavity of the dust collection hood extends toward the drum to form an opening, the dust collection roller is installed in the dust collection cavity, and the outer surface of the dust collection roller contacts the inner surface of the annular flannel cloth, and when the printed matter is transmitted on the conveyor belt and passes through the dust collection roller, the outer surface of the dust collection roller passes through the dust collection groove and contacts the lower surface of the printed matter, thereby removing dust from the lower surface of the printed matter during the transmission process, so that the dust on the surface passes through the dust collection groove and falls into the dust collection hood for collection, and is discharged through the dust collection channel, thereby preventing the dust from floating and improving the quality and effect of dust removal.

[0011] Further in the above description, one end of the dust suction channel extends outward through the bracket and is connected to a blower, and the blower is used to suction the dust particles in the dust hood.

[0012] Further in the above description, the frame is provided with a first electrostatic precipitator and a second electrostatic precipitator, and the first electrostatic precipitator and the second electrostatic precipitator are distributed at both ends of the frame, the first electrostatic precipitator is installed on the frame through a support rod, and the second electrostatic precipitator is installed at an end of the frame away from the first electrostatic precipitator. The first electrostatic precipitator is arranged to destaticize the upper surface of the printed matter, and the second electrostatic precipitator is arranged to destaticize the lower surface of the printed matter, thereby preventing dust from adhering to the surface of the printed matter.

[0013] The beneficial effects of the utility model are as follows: by sleeved an annular flannel cloth on the active roller and the driven roller, and opening a plurality of dust removal grooves on the surface of the flannel cloth, the annular flannel cloth can increase the contact area with the surface of the printed matter, thereby improving the dust removal efficiency on the surface of the printed matter, and through the rolling action of the roller, the dust on the printed matter in contact with the annular flannel cloth can be further brushed off, thereby effectively removing dust from the surface of the printed matter, and at the same time, the dust removal roller connected to the inside of the dust collection hood can contact and remove dust from the lower surface of the printed matter, so that the fallen dust passes through the dust removal grooves of the annular flannel cloth and falls into the dust collection cavity for collection, and is discharged through the dust collection channel, thereby avoiding secondary pollution to the surrounding environment, and reducing the dust from floating and adhering to the cleaned printed matter, thereby improving the dust removal quality and dust removal efficiency of the printed matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the first direction of this embodiment;

[0015] Figure 2 is a three-dimensional diagram of the embodiment in the second direction;

[0016] Figure 3 This is a schematic diagram of the structure of the present embodiment in use;

[0017] Figure 4 This is a cross-sectional view of the structure of the present embodiment in use;

[0018] The reference numerals in the figure are: 1-frame, 2-driving roller, 3-driven roller, 4-bracket, 5-annular flannel, 6-dust removal slot, 7-mounting seat, 8-roller, 9-dust hood, 10-dust removal cavity, 11-dust removal roller, 12-dust removal channel, 13-driving wheel, 14-driven wheel, 15-belt, 16-driving motor, 17-first electrostatic precipitator, 18-second electrostatic precipitator, 19-support rod. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] In this embodiment, refer to Figure 1-Figure 4The dust removal device of a printing press specifically implemented includes a frame 1 and a conveyor belt arranged on the frame 1, the conveyor belt is composed of an active roller 2, a driven roller 3 and two brackets 4, the two brackets 4 are installed on the frame 1, the active roller 2 and the driven roller 3 are both installed between the two brackets 4, one end of the active roller 2 is connected with a driving member, an annular flannel 5 is sleeved on the active roller 2 and the driven roller 3, one end of the annular flannel 5 passes through the active roller 2 and the driven roller 3 in turn, and is closed-loop connected to the other end of the annular flannel 5, a plurality of dust removal grooves 6 are opened on the surface of the annular flannel 5, the two brackets 4 are connected with relatively distributed mounting seats 7, the mounting seats 7 are connected with rollers 8, and a dust hood 9 is connected between the two brackets 4, a dust suction cavity 10 is formed inside the dust hood 9, a dust removal roller 11 is connected in the dust suction cavity 10, and a dust suction channel 12 connected to the dust suction cavity 10 is provided on the side of the dust hood 9.

[0021] The driving member is composed of a driving wheel 13, a driven wheel 14, a belt 15 and a driving motor 16. The driving wheel 13 is coaxially connected to one end of the driving roller 2. The driving motor 16 is installed on the frame 1 through a motor seat, and the motor shaft of the driving motor 16 is coaxially connected to the driven wheel 14. One end of the belt 15 passes through the driving wheel 13 and the driven wheel 14 in sequence, and is closed-loop connected to the other end of the belt 15. The driving motor 16 can drive the driving roller 2 to drive the annular flannel 5 to rotate, so that the surface of the printed matter can be contact-cleaned through the annular flannel 5 to prevent dust from adhering to the surface of the printed matter, thereby improving the subsequent printing quality and efficiency.

[0022] The mounting seat 7 is mounted on the bracket 4, the roller 8 is mounted on the mounting seat 7, and the outer surface of the roller 8 contacts the outer surface of the annular flannel 5. Driven by the conveyor belt, the printed product is located between the roller 8 and the annular flannel 5, so that the printed product is brushed to remove dust and particles on the surface.

[0023] The dust collecting cavity 10 of the dust collecting hood 9 extends toward the drum 8 to form an opening, and the dust collecting roller 11 is installed in the dust collecting cavity 10, and the outer surface of the dust collecting roller 11 contacts the inner surface of the annular flannel 5. When the printed matter is transmitted on the conveyor belt, when passing through the dust collecting roller 11, the outer surface of the dust collecting roller 11 passes through the dust collecting slot 6 and contacts the lower surface of the printed matter, thereby removing dust from the lower surface of the printed matter during the transmission process, so that the dust on the surface passes through the dust collecting slot 6 and falls into the dust collecting hood 9 for collection, and is discharged through the dust collecting channel 12, thereby preventing the dust from floating and improving the dust removal quality and effect. One end of the dust collecting channel 12 extends outward through the bracket 4 and is connected to a blower (not shown), and the blower (not shown) is used to collect dust particles in the dust collecting hood 9.

[0024] A first electrostatic precipitator 17 and a second electrostatic precipitator 18 are provided on the frame 1, and the first electrostatic precipitator 17 and the second electrostatic precipitator 18 are distributed at both ends of the frame 1. The first electrostatic precipitator 17 is installed on the frame 1 through a support rod 19, and the second electrostatic precipitator 18 is installed at one end of the frame 1 away from the first electrostatic precipitator 17. The first electrostatic precipitator 17 is set to destaticize the upper surface of the printed matter, and the second electrostatic precipitator 18 is set to destaticize the lower surface of the printed matter, so as to prevent dust from adhering to the surface of the printed matter.

[0025] In this embodiment, the principle of use of the static eliminator is based on charge neutralization. When the surface of printed materials (paper) carries static electricity, they will be in a state of charge imbalance, that is, they carry too much positive charge or negative charge. The goal of the static eliminator is to neutralize this static electricity by releasing ions with opposite charges to the surface charge of the object, thereby restoring the object to an electrically neutral state.

[0026] During the working process of the static eliminator, the high-voltage power generator inside the static eliminator generates a high-voltage electric field. The discharge electrode ionizes the surrounding air into a large number of positive and negative ions through corona discharge. When the ions come into contact with the surface charge of the printed matter, they will neutralize each other, thereby restoring the printed matter to an electrically neutral state. This can be done while the printed matter is being transported by a conveyor belt.

[0027] The specific operating principle of this embodiment is as follows: the paper enters the conveyor belt from one end of the frame 1, and the upper surface of the paper is subjected to electrostatic dust removal by the first static eliminator, so that the annular flannel 5 drives the paper to move under the drive of the driving motor 16, so that the annular flannel 5 can increase the contact area with the surface of the printed matter, thereby improving the dust removal efficiency on the surface of the printed matter, and through the rolling action of the roller 8, the dust on the printed matter that contacts the annular flannel 5 can be further brushed off, thereby effectively removing dust from the upper surface of the printed matter, and at the same time, the dust removal device 9 is connected to the dust collecting cover 9. The roller 11 can contact and remove dust from the lower surface of the printed matter, so that the fallen dust passes through the dust removal groove 6 of the annular flannel 5 and falls into the dust suction cavity 10 for collection, and is connected to the blower (not shown) through the dust suction channel 12 for extraction and discharge, thereby avoiding secondary pollution to the surrounding environment. When the annular flannel 5 transports the paper to the end of the frame 1 close to the second static eliminator, the second static eliminator eliminates static electricity on the lower surface of the paper, thereby reducing the external dust from floating and adhering to the cleaned printed matter, thereby improving the dust removal quality and efficiency of the printed matter.

[0028] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A dust removal device for a printing press, comprising a frame and a conveyor belt arranged on the frame, the conveyor belt is composed of a driving roller, a driven roller and two brackets, the two brackets are installed on the frame, the driving roller and the driven roller are both installed between the two brackets, one end of the driving roller is connected to a driving member, and the characteristics are: An annular flannel cloth is sleeved on the active roller and the driven roller, one end of the annular flannel cloth passes through the active roller and the driven roller in sequence, and is closed-loop connected to the other end of the annular flannel cloth, a plurality of dust removal grooves are provided on the surface of the annular flannel cloth, two brackets are connected with relatively distributed mounting seats, the mounting seats are connected with rollers, and a dust hood is connected between the two brackets, a dust collection cavity is formed inside the dust collection hood, a dust removal roller is connected in the dust collection cavity, and a dust collection channel connected to the dust collection cavity is provided on the side of the dust collection hood.

2. The dust removal device of a printing press according to claim 1, characterized in that: The driving member is composed of a driving wheel, a driven wheel, a belt and a driving motor. The driving wheel is coaxially connected to one end of the driving roller. The driving motor is installed on the frame through a motor seat, and the motor shaft of the driving motor is coaxially connected to the driven wheel. One end of the belt passes through the driving wheel and the driven wheel in sequence and is closed-loop connected to the other end of the belt.

3. The dust removal device of a printing press according to claim 1, characterized in that: The mounting seat is mounted on the bracket, the roller is mounted on the mounting seat, and the outer surface of the roller contacts the outer surface of the annular flannel cloth.

4. The dust removal device of a printing press according to claim 1, characterized in that: The dust collecting cavity of the dust collecting hood extends toward the drum to form an opening, the dust removing roller is installed in the dust collecting cavity, and the outer surface of the dust removing roller contacts the inner surface of the annular flannel cloth.

5. The dust removal device of a printing press according to claim 4, characterized in that: One end of the dust suction channel extends outwards through the bracket and is connected to a blower.

6. A dust removal device for a printing press according to any one of claims 1 to 5, characterized in that: The frame is provided with a first electrostatic precipitator and a second electrostatic precipitator, which are distributed at both ends of the frame. The first electrostatic precipitator is installed on the frame through a support rod, and the second electrostatic precipitator is installed at one end of the frame away from the first electrostatic precipitator.

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