An automatic dust removal device for printing presses

Abstract

This utility model relates to the field of printing equipment technology, specifically disclosing an automatic dust removal device for a printing press, comprising: a machine housing, a paper conveyor belt, a dust spraying mechanism, a dust cleaning mechanism, and a control mechanism; the paper conveyor belt, dust spraying mechanism, dust cleaning mechanism, and control mechanism are all installed inside the machine housing, with a paper inlet and a paper outlet on each side of the machine housing, and the paper conveyor belt extending from the paper inlet to the paper outlet; the dust spraying mechanism is installed in the paper conveyor belt near the paper inlet, and the dust cleaning mechanism is installed in the paper conveyor belt near the paper outlet; the control mechanism is electrically connected to the paper conveyor belt, the dust spraying mechanism, and the dust cleaning mechanism. This utility model achieves the coordinated operation of each mechanism through the control mechanism, realizing the automation of paper dust spraying and dust removal. It eliminates the need for frequent manual intervention, reducing manual operation time and errors, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to an automatic dust removal device for printing presses. Background Technology

[0002] During the printing process, anti-sticking powder is typically sprayed onto the paper surface to prevent paper from sticking together. However, this powder gradually accumulates during paper transport and on related components of the printing equipment, forming dust accumulation. Dust accumulation not only affects print quality but can also lead to equipment malfunctions and reduce equipment lifespan. Currently, most existing dust removal methods require manual intervention, resulting in low efficiency and a lack of precise integration with the printing process, leading to energy waste. Therefore, developing a device that can automatically remove dust accumulation and intelligently integrate with the printing process is of significant practical importance. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide an automatic dust removal device for printing presses.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an automatic dust removal device for printing presses, comprising:

[0005] The machine casing, paper conveyor belt, powder spraying mechanism, powder cleaning mechanism, and control mechanism;

[0006] The paper conveyor belt, the powder spraying mechanism, the powder cleaning mechanism, and the control mechanism are all installed inside the machine housing, and the machine housing has a paper inlet and a paper outlet on both sides. The paper conveyor belt extends from the paper inlet to the paper outlet. The powder spraying mechanism is installed in the paper conveyor belt on the side near the paper inlet, and the powder cleaning mechanism is installed in the paper conveyor belt on the side near the paper outlet. The control mechanism is electrically connected to the paper conveyor belt, the powder spraying mechanism, and the powder cleaning mechanism.

[0007] Main working principle: The automatic dust removal device of this printing press works in concert with the various mechanisms inside the machine. During the paper transport process, the powder spraying mechanism first sprays anti-sticking powder on the paper surface. Then the paper continues to be transported. When it reaches the position of the dust removal mechanism, the dust removal mechanism cleans the paper surface and related parts of the equipment that may have accumulated dust. The whole process is precisely controlled by the control mechanism to ensure that each mechanism operates in an orderly manner.

[0008] First, the chassis, as the load-bearing structure of the entire device, provides installation space for the paper conveyor belt, powder spraying mechanism, powder cleaning mechanism and control mechanism. At the same time, the paper inlet and paper outlet on both sides clearly define the direction of paper entry and exit, so that the paper can be transported in the device according to the predetermined path.

[0009] Secondly, the paper conveyor belt extends from the paper inlet to the paper outlet, and it operates continuously under external power (such as a motor drive) during the machine's operation. After entering the machine chamber through the paper inlet, the paper is placed on the paper conveyor belt, and as the belt moves, the paper is smoothly transported to various working areas within the machine. The paper conveyor belt plays a crucial role in transporting the paper, ensuring that it passes sequentially through the powder spraying mechanism and the powder cleaning mechanism.

[0010] The powder spraying mechanism is installed on the paper conveyor belt, near the paper inlet. When the paper conveyor belt transports the paper to the powder spraying mechanism, it begins operation. It evenly sprays anti-sticking powder onto the paper surface using internal spraying devices (such as nozzles). The anti-sticking powder prevents the paper from sticking during subsequent printing or transport, ensuring smooth printing. The operation of the powder spraying mechanism is controlled by a control unit, which precisely performs the powder spraying operation according to preset parameters (such as powder quantity and spraying time). The cleaning mechanism is installed on the paper conveyor belt, near the paper outlet. When the paper has undergone powder spraying and continues to be transported to the cleaning mechanism, it activates. The cleaning mechanism typically uses airflow to blow air towards the side where the paper is moving. The high-speed airflow effectively removes dust accumulated on the paper surface and surrounding equipment components. The operation of the cleaning mechanism is also controlled by a control unit, which adjusts the airflow size and blowing time based on factors such as the paper transport speed and dust accumulation to achieve optimal cleaning results.

[0011] The control mechanism, electrically connected to the paper conveyor belt, powder spraying mechanism, and powder cleaning mechanism, is the core control component of the entire device. It receives feedback signals from each mechanism, such as the paper conveyor belt position signal, the powder spraying status signal, and the airflow pressure signal from the powder cleaning mechanism, and precisely controls the operation of each mechanism according to preset programs and parameters. For example, the control mechanism can coordinate the working rhythm of the powder spraying and cleaning mechanisms based on the paper's conveying speed, ensuring that they complete their respective tasks promptly and accurately when the paper reaches the appropriate position. Simultaneously, the control mechanism can monitor and diagnose the device's operating status, issuing alarms and taking appropriate measures when abnormalities occur to ensure the safe and stable operation of the device.

[0012] During paper transport, the paper conveyor belt sequentially delivers the paper from the paper inlet to the powder spraying and cleaning mechanisms. Upon arrival, the powder spraying mechanism performs powder spraying according to the control mechanism's instructions, providing anti-stick protection to the paper surface. Subsequently, the paper continues to the cleaning mechanism, which, under the control of the control mechanism, uses airflow to clean the paper surface and equipment components. The control mechanism monitors and adjusts the operating status of each mechanism in real time to ensure the entire device operates efficiently and stably, achieving automatic powder spraying and dust removal functions.

[0013] Preferably, the cleaning mechanism includes an air pipe and a blower pipe. The two ends of the blower pipe are respectively connected to both sides of the paper conveyor belt. The air outlet of the blower pipe faces the side where the paper is moving. The blower pipe is connected to an external air pump through the air pipe.

[0014] Preferably, the direction of the air outlet of the blower tube is at an angle of 45° to the direction of paper movement.

[0015] Preferably, there are at least two air blowers arranged along the extension direction of the paper conveyor belt.

[0016] Preferably, the paper conveyor belt has insertion holes on both sides, and the two ends of the blower tube are respectively connected to the insertion holes on both sides by pins.

[0017] Preferably, the control mechanism includes a PLC, a solenoid valve, and a regulating valve; the PLC is installed on the inner wall of the chassis, and the solenoid valve and the regulating valve are connected to the powder cleaning mechanism, and the PLC is electrically connected to the solenoid valve and the regulating valve.

[0018] Preferably, the control mechanism further includes a sampler disposed on one side of the paper conveyor belt for detecting the thickness of dust on the paper surface.

[0019] As a preferred option, a powder collection mechanism is also included;

[0020] The dust collection mechanism includes a fan and a dust collection tank. The dust collection tank is installed above the chassis, and the fan is installed on the connecting pipe between the chassis and the dust collection tank to draw air from the chassis into the dust collection tank.

[0021] Preferably, the paper inlet is located near the bottom of the chassis, the paper outlet is located near the top of the chassis, and the paper conveyor belt enters from the paper inlet, bends twice, and exits from the paper outlet.

[0022] Preferably, the paper conveyor belt includes a frame, a drive chain shaft, and a passive chain shaft. The two ends of the drive chain shaft and the two ends of the passive chain shaft are respectively connected to the two sides of the frame, and the drive chain shaft is connected to an external motor.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This invention utilizes a powder spraying mechanism installed on the paper conveyor belt near the paper inlet to promptly and evenly spray anti-sticking powder onto the paper surface, preventing paper from sticking during subsequent printing and transport, thus ensuring a smooth printing process. Meanwhile, a powder cleaning mechanism located near the paper outlet promptly cleans the dust accumulated on the paper surface and equipment after the printing process is complete. This precise powder spraying combined with effective cleaning avoids printing defects caused by dust accumulation, such as uneven ink distribution and blurred patterns, significantly improving the overall quality of printed materials.

[0025] Meanwhile, the entire device achieves coordinated operation of its various mechanisms through a control system, automating paper powder spraying and dust accumulation cleaning. This eliminates the need for frequent manual intervention, reducing manual operation time and errors, and improving production efficiency. Paper can pass through the device quickly and stably, completing the powder spraying and cleaning processes, providing a good foundation for subsequent printing and processing stages. The timely removal of accumulated dust by the cleaning mechanism avoids equipment downtime due to excessive dust buildup. The equipment can operate continuously and stably, reducing downtime during production, improving the overall operating efficiency of the production line, and increasing the company's production output. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the automatic powder cleaning device for the printing press;

[0028] Figure 2 This is a side view of the automatic dust removal device for the printing press.

[0029] Figure 3 This is a piping diagram of the automatic dust removal device for the printing press.

[0030] 1. Chassis; 10. Paper Inlet; 11. Paper Outlet; 2. Paper Conveyor Belt Frame; 20. Driven Chain Shaft; 21. Driven Chain Shaft; 22. Insertion Hole; 3. Powder Spraying Mechanism; 4. Powder Cleaning Mechanism; 40. Air Pipe; 41. Air Blowing Pipe; 5. Control Mechanism; 50. PLC; 51. Solenoid Valve; 52. Regulating Valve; 53. Sampler; 6. Powder Collection Mechanism; 60. Fan; 61. Powder Collection Tank. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] Example 1

[0034] This embodiment discloses an automatic dust removal device for a printing press, such as... Figures 1-3 As shown, the system includes a chassis 1, a paper conveyor belt, a powder spraying mechanism 3, a powder cleaning mechanism 4, and a control mechanism 5. Through the coordinated work of the various mechanisms within the chassis 1, during the paper conveying process, the powder spraying mechanism 3 first sprays anti-sticking powder onto the paper surface. Then, the paper continues to be conveyed, and when it reaches the position of the powder cleaning mechanism 4, the powder cleaning mechanism 4 cleans the paper surface and related parts of the equipment where dust may accumulate. The entire process is precisely controlled by the control mechanism 5 to ensure the orderly operation of each mechanism.

[0035] First, the chassis 1, as the supporting structure of the entire device, provides installation space for the paper conveyor belt, the powder spraying mechanism 3, the powder cleaning mechanism 4, and the control mechanism 5. At the same time, the paper inlet 10 and paper outlet 11 set on both sides of the chassis clearly define the direction of paper entry and exit, so that the paper can be transported in the device according to the predetermined path.

[0036] Secondly, the paper conveyor belt extends from the paper inlet 10 to the paper outlet 11. During operation, the paper conveyor belt operates continuously under the action of external power (such as motor drive). After the paper enters the machine housing 1 through the paper inlet 10, it is placed on the paper conveyor belt. As the conveyor belt moves, the paper is smoothly transported to various working areas within the machine. The paper conveyor belt plays a crucial role in transporting the paper, ensuring that the paper passes sequentially through the powder spraying mechanism 3 and the powder cleaning mechanism 4.

[0037] The powder spraying mechanism 3 is installed in the paper conveyor belt, near the paper inlet 10. When the paper conveyor belt transports the paper to the location of the powder spraying mechanism 3, the powder spraying mechanism 3 begins operation. It evenly sprays anti-sticking powder onto the paper surface using its internal powder spraying device (such as nozzles). The anti-sticking powder prevents the paper from sticking during subsequent printing or transport, ensuring smooth printing. The operation of the powder spraying mechanism 3 is controlled by the control mechanism 5, which precisely completes the powder spraying operation according to preset parameters (such as powder spraying amount and spraying time). The powder cleaning mechanism 4 is installed in the paper conveyor belt, near the paper outlet 11. When the paper has undergone powder spraying and continues to be transported to the location of the powder cleaning mechanism 4, the powder cleaning mechanism 4 is activated. The powder cleaning mechanism 4 typically uses an airflow blowing method, blowing air towards the side where the paper is moving. The high-speed airflow effectively blows off the dust accumulated on the paper surface and the surrounding equipment components of the paper conveyor belt. The operation of the cleaning mechanism 4 is also controlled by the control mechanism 5. Based on factors such as the paper conveying speed and dust accumulation, the size of the airflow and the blowing time are reasonably adjusted to achieve the best cleaning effect.

[0038] The control mechanism 5 is electrically connected to the paper conveyor belt, the powder spraying mechanism 3, and the powder cleaning mechanism 4, and is the core control component of the entire device. It receives feedback signals from each mechanism, such as the position signal of the paper conveyor belt, the powder spraying status signal of the powder spraying mechanism 3, and the airflow pressure signal of the powder cleaning mechanism 4, and precisely controls the operation of each mechanism according to preset programs and parameters. For example, the control mechanism 5 can coordinate the working rhythm of the powder spraying mechanism 3 and the powder cleaning mechanism 4 based on the paper conveying speed, ensuring that the powder spraying mechanism 3 and the powder cleaning mechanism 4 can complete their respective tasks promptly and accurately when the paper reaches the corresponding position. Simultaneously, the control mechanism 5 can also monitor and diagnose the operating status of the device, issuing alarms and taking corresponding measures in a timely manner when abnormalities occur, ensuring the safe and stable operation of the device.

[0039] During paper transport, the paper conveyor belt sequentially transports the paper from the paper inlet 10 to the powder spraying mechanism 3 and the powder cleaning mechanism 4. Upon arrival of the paper, the powder spraying mechanism 3 performs powder spraying according to the instructions of the control mechanism 5, providing anti-stick protection to the paper surface. Subsequently, the paper continues to be transported to the powder cleaning mechanism 4, which, under the control of the control mechanism 5, uses airflow to clean the paper surface and equipment components. The control mechanism 5 monitors and adjusts the working status of each mechanism in real time to ensure that the entire device operates efficiently and stably, achieving automatic powder spraying and powder accumulation cleaning of the paper.

[0040] In some optional embodiments, when the dust removal mechanism 4 is operating, an external air pump is activated, delivering compressed gas to the blowing pipe 41 through the air pipe 40. The blowing pipe 41 is connected at both ends to the sides of the paper conveyor belt, with its outlet facing the side where the paper is moving. When the paper is conveyed to the dust removal mechanism 4, the compressed gas is ejected at high speed from the outlet of the blowing pipe 41, forming an airflow that blows off the dust accumulated on the paper surface and the surrounding equipment components of the paper conveyor belt, thus achieving the purpose of cleaning the accumulated dust.

[0041] In some optional embodiments, the outlet direction of the blower 41 forms a 45° angle with the paper's movement direction. This angle setting is optimized. When the high-speed airflow blows towards the paper at a 45° angle, it effectively blows up dust from the paper surface without affecting the dust removal effect or causing paper position shift due to an excessively large or small airflow angle. The 45° airflow angle can better cover the paper surface, improving dust removal efficiency and quality.

[0042] In some optional embodiments, providing at least two air blowers 41 arranged along the extension direction of the paper conveyor belt is to expand the dust removal range and improve the dust removal effect. During paper transport, dust accumulation may vary at different locations. Multiple air blowers 41 can simultaneously clean different parts of the paper, ensuring that dust on the paper surface is thoroughly removed. Moreover, the multiple air blowers 41 can be rationally arranged according to the width of the paper and the dust distribution, further improving the uniformity and thoroughness of dust removal.

[0043] In some optional embodiments, the paper conveyor belt has insertion holes 22 on both sides, and the two ends of the air pipe 41 are connected to the insertion holes 22 on both sides by pins. This connection method makes the installation and removal of the air pipe 41 more convenient and quick. When it is necessary to replace or repair the air pipe 41, simply pull out the pins to remove the air pipe 41. During installation, the two ends of the air pipe 41 are inserted into the insertion holes 22 and fixed with pins, which improves the maintainability and flexibility of the equipment.

[0044] In some optional embodiments, when the control mechanism 5 is working, the PLC 50 is installed on the inner wall of the chassis 1, serving as the core of the entire control system. The solenoid valve 51 and the regulating valve 52 are connected to the powder cleaning mechanism 4, and the PLC 50 is electrically connected to the solenoid valve 51 and the regulating valve 52. Based on a preset program and received sensor signals, such as paper position signals and the working status signals of the powder cleaning mechanism 4, the PLC 50 controls the opening and closing of the solenoid valve 51, thereby controlling the flow of gas. Simultaneously, it regulates the gas flow and pressure through the regulating valve 52 to ensure that the airflow and purging force of the powder cleaning mechanism 4 meet the requirements, achieving precise control of the powder cleaning mechanism 4.

[0045] In some optional embodiments, a sampler 53 is positioned on one side of the paper conveyor belt to detect the thickness of dust on the paper surface. During paper transport, the sampler 53 collects dust samples from the paper surface in real time and converts the dust thickness information into an electrical signal via a sensor, which is then transmitted to the PLC 50. The PLC 50 determines whether the dust removal effect meets the requirements based on the received dust thickness data. If the dust thickness exceeds a preset value, the PLC 50 adjusts the operating parameters of the dust removal mechanism 4, such as increasing the airflow rate or extending the blowing time, to ensure that the dust on the paper surface is thoroughly cleaned.

[0046] In some optional embodiments, when the dust collection mechanism 6 is operating, the fan 60 is installed on the connecting pipe between the chassis 1 and the dust collection tank 61. When the fan 60 starts, air inside the chassis 1 is drawn into the connecting pipe and into the dust collection tank 61. During the airflow, dust blown off by the dust removal mechanism 4 is drawn into the dust collection tank 61 along with the air. The dust collection tank 61 is usually equipped with a filter device that separates the dust from the air, keeping the dust inside the dust collection tank 61 while clean air is discharged outside, thereby achieving the collection and treatment of dust inside the chassis 1 and preventing dust from spreading in the workshop.

[0047] In some alternative embodiments, the paper inlet 10 is located near the bottom of the housing 1, and the paper outlet 11 is located near the top of the housing 1. The paper conveyor belt enters from the paper inlet 10, and exits from the paper outlet 11 after two bends. This layout increases the length of the paper's transport path within the housing 1, allowing the paper more time to pass through the powder spraying mechanism 3 and the powder cleaning mechanism 4, thus improving the powder spraying and cleaning effects. Simultaneously, the two-bend design also helps to make better use of the space in the housing 1, resulting in a more compact device structure.

[0048] In some optional embodiments, when the paper conveyor belt is operating, an external motor starts, driving the drive chain shaft 20 to rotate. Both ends of the drive chain shaft 20 and both ends of the driven chain shaft 21 are connected to both sides of the frame. The drive chain shaft 20 drives the driven chain shaft 21 to rotate via a chain or belt or other transmission component, thereby initiating the operation of the paper conveyor belt. Paper is placed on the conveyor belt and transported as the belt moves. The frame provides a stable support structure for the entire conveyor belt, ensuring the smoothness and reliability of paper transport.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A device for automatically cleaning accumulated powder from a printer, characterized by, include: The machine casing, paper conveyor belt, powder spraying mechanism, powder cleaning mechanism, and control mechanism; The paper conveyor belt, the powder spraying mechanism, the powder cleaning mechanism, and the control mechanism are all installed inside the machine housing, and the machine housing has a paper inlet and a paper outlet on both sides. The paper conveyor belt extends from the paper inlet to the paper outlet. The powder spraying mechanism is installed in the paper conveyor belt on the side near the paper inlet, and the powder cleaning mechanism is installed in the paper conveyor belt on the side near the paper outlet. The control mechanism is electrically connected to the paper conveyor belt, the powder spraying mechanism, and the powder cleaning mechanism.

2. The automatic dust removal device for printing presses according to claim 1, characterized in that, The cleaning mechanism includes an air pipe and a blower pipe. The two ends of the blower pipe are respectively connected to both sides of the paper conveyor belt. The air outlet of the blower pipe faces the side where the paper is moving. The blower pipe is connected to an external air pump through the air pipe.

3. The automatic dust removal device for printing presses according to claim 2, characterized in that, The air outlet of the blower tube forms a 45° angle with the direction of paper movement.

4. The automatic dust removal device for printing presses according to claim 2, characterized in that, There are at least two air blowers, and at least two air blowers are arranged along the extension direction of the paper conveyor belt.

5. The automatic dust removal device for printing presses according to claim 2, characterized in that, The paper conveyor belt has insertion holes on both sides, and the two ends of the blower tube are respectively connected to the insertion holes on both sides by pins.

6. The automatic dust removal device for printing presses according to claim 1, characterized in that, The control mechanism includes a PLC, a solenoid valve, and a regulating valve; the PLC is installed on the inner wall of the chassis, and the solenoid valve and the regulating valve are connected to the powder cleaning mechanism, and the PLC is electrically connected to the solenoid valve and the regulating valve.

7. The automatic dust removal device for printing presses according to claim 6, characterized in that, The control mechanism also includes a sampler, which is located on one side of the paper conveyor belt to detect the thickness of dust on the paper surface.

8. The automatic dust removal device for printing presses according to claim 1, characterized in that, It also includes powder collection mechanisms; The dust collection mechanism includes a fan and a dust collection tank. The dust collection tank is installed above the chassis, and the fan is installed on the connecting pipe between the chassis and the dust collection tank to draw air from the chassis into the dust collection tank.

9. The automatic dust removal device for printing presses according to claim 1, characterized in that, The paper inlet is located near the bottom of the chassis, and the paper outlet is located near the top of the chassis. The paper conveyor belt enters from the paper inlet, and exits from the paper outlet after two bends.

10. The automatic dust removal device for printing presses according to claim 1, characterized in that, The paper conveyor belt includes a frame, a drive chain shaft, and a passive chain shaft. The two ends of the drive chain shaft and the two ends of the passive chain shaft are respectively connected to the two sides of the frame, and the drive chain shaft is connected to an external motor.

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