A conveyor belt packaging purging device

Abstract

This utility model discloses a conveyor belt packaging purging device, including an air tank, a pulse valve, a photoelectric switch, a purging pipeline, and a manual ball valve. The air tank is fixed to the side of the conveyor belt frame, and its outlet is connected to the pulse valve and the manual ball valve in sequence via flanges. The purging pipeline consists of two parallel annular sections mounted above the conveyor belt inlet, allowing for purging of both the top and bottom surfaces of the packaging. Its inlet end is connected to the outlet of the manual ball valve, and a directional, inclined nozzle array is welded to the bottom of the pipeline. The photoelectric switch is mounted 1m upstream of the starting end of the purging pipeline via an adjustable bracket, and its signal line is connected to the control end of the pulse valve. This utility model uses the air tank to stabilize and store compressed air, and in conjunction with the instantaneous opening of the pulse valve triggered by the photoelectric switch, ensures that the airflow is directionally sprayed only when the packaging passes through. This working mode reduces air consumption to one-third of that used for continuous purging, improving energy efficiency and avoiding interference from ineffective airflow on the conveyor belt environment.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation cleaning equipment technology, specifically a conveyor belt packaging blowing device. Background Technology

[0002] Dust residue is a common problem in current packaging production lines: traditional manual cleaning is inefficient and easily contaminates products; fixed air gun cleaning consumes a lot of energy due to continuous air supply, and indiscriminate cleaning can damage the packaging. Although existing technologies use timed air blowing, they lack packaging position sensing capabilities, resulting in a cleaning coverage rate of less than 30%. Considering the characteristics of the narrow working surface of horizontal conveyors, there is a need to develop an automatic cleaning solution with controllable energy consumption and precise positioning. Utility Model Content

[0003] The purpose of this invention is to provide a conveyor belt packaging blowing device that uses an air tank to buffer compressed air fluctuations, a pulse valve to achieve on-demand spraying, and a manual ball valve to precisely adjust the pressure, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a conveyor belt packaging purging device, comprising an air tank, wherein the outlet of the air tank is sequentially connected to a pulse valve and a manual ball valve, and the outlet of the manual ball valve is connected to the air inlet of a purging pipeline; the purging pipeline is arranged along the extension direction of the conveyor belt, and its bottom is provided with a nozzle array facing the packaging; a photoelectric switch is installed on the side of the conveyor belt, and its signal output terminal is electrically connected to the control terminal of the pulse valve, used to detect the packaging position and trigger the pulse valve to open; After the pressure-stabilized airflow from the air tank is released through the pulse valve, the air pressure is adjusted by the manual ball valve, and finally sprayed out in a directional manner from the nozzle of the purging pipeline to remove dust.

[0005] Preferably, the pulse valve is an electromagnetic pulse valve, and its opening duration and interval are dynamically controlled by the trigger signal of the photoelectric switch.

[0006] Preferably, the photoelectric switch is located upstream of the starting end of the purge pipe, and its sensing direction is perpendicularly aligned with the packaging movement path on the conveyor belt.

[0007] Preferably, the manual ball valve integrates a pressure gauge, and its valve body is located on the connecting pipe section between the pulse valve and the purging pipeline.

[0008] Preferably, the purging pipeline is connected in sections by quick-release clamps, and the nozzle spacing is equidistantly distributed along the conveyor belt direction.

[0009] Preferably, the purging pipeline has a double-layer annular structure and is installed parallel above the conveyor belt inlet, which can purge the packaging from both the top and bottom.

[0010] The working process of this utility model is as follows: Compressed air is first fed into an air tank for pressure stabilization and storage, forming a stable air source. When a package on the conveyor belt moves to the photoelectric switch's sensing area, the switch immediately triggers the pulse valve to open. The pulse valve then opens for a preset duration (0.5-1 second), releasing the stabilized gas from the air tank into the downstream pipeline. As the airflow passes through the manual ball valve, the pressure is adjusted to 0.2-0.4 MPa using a manually preset valve opening (30%-100%), ultimately entering the purge pipeline parallel to the conveyor belt. The purge pipeline has two layers, allowing for purge of both the top and bottom surfaces of the package. An array of evenly spaced, inclined nozzles at the bottom of the pipeline creates a directional airflow that precisely impacts the package surface, removing adhering dust. After the package leaves the sensing area, the pulse valve automatically closes, cutting off the airflow until the next package triggers the cycle.

[0011] The beneficial effects of this utility model are as follows: (1) This utility model uses an air tank to store compressed air at a stable pressure, and with the pulse valve that opens instantaneously after being triggered by a photoelectric switch, the airflow is directed only when the packaging passes through. This working mode reduces the air consumption to one-third of that of continuous purging, improves energy efficiency, and avoids interference of ineffective airflow with the conveyor belt environment.

[0012] (2) In this utility model, the purging pipeline is installed parallel above the conveyor belt, and its bottom nozzles are arranged at equal intervals at an angle. When the packaging triggers the photoelectric switch, the 0.2-0.4MPa pressure airflow forms a covering impact at a distance from the packaging surface. This design significantly reduces the amount of dust residue on the packaging surface and significantly improves the dust removal qualification.

[0013] (3) In this utility model, the gas tank and pulse valve are quickly connected via flanges, and the purging pipeline is connected by segmented quick-release clamps. With the help of adjustable brackets, the height and angle can be finely adjusted. The entire device can be installed quickly within 30 minutes without the need for special tools, which greatly reduces the cost of production line modification. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1. Gas tank, 2. Pulse valve, 3. Photoelectric switch, 4. Purge pipeline, 5. Manual ball valve, 6. Pressure gauge, 7. Quick-release clamp, 8. Nozzle. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] like Figure 1The illustrated conveyor belt packaging cleaning device includes an air tank 1. The outlet of the air tank 1 is sequentially connected to a pulse valve 2 and a manual ball valve 5. The outlet of the manual ball valve 5 is connected to the air inlet of a cleaning pipeline 4. The cleaning pipeline 4 is arranged along the extension direction of the conveyor belt, and its bottom is provided with a nozzle array facing the packaging. A photoelectric switch 3 is installed on the side of the conveyor belt. The photoelectric switch 3 is installed on the side of the conveyor belt, and its signal output terminal is electrically connected to the control terminal of the pulse valve 2. It is used to detect the packaging position and trigger the pulse valve 2 to open. After the pressure-stabilized airflow from the air tank 1 is released through the pulse valve 2, the air pressure is adjusted by the manual ball valve 5, and finally it is directionally sprayed out by the nozzles 8 of the cleaning pipeline 4 to remove dust.

[0017] Pulse valve 2 is an electromagnetic pulse valve, and its opening duration and interval are dynamically controlled by the trigger signal of photoelectric switch 3. Photoelectric switch 3 is located upstream of the starting end of purge line 4, and its sensing direction is perpendicular to the packaging movement path on the conveyor belt. Manual ball valve 5 integrates pressure gauge 6, and its valve body is located on the connecting pipe section between pulse valve 2 and purge line 4.

[0018] The purge pipe 4 has a double-layered ring structure and is installed parallel above the conveyor belt inlet, allowing for purge of both the top and bottom surfaces of the packaging. The purge pipe 4 is connected in sections via quick-release clamps 7, with its nozzles evenly spaced along the conveyor belt direction.

[0019] The working process of this utility model is as follows: Compressed air is first fed into air tank 1 for pressure stabilization and storage, forming a stable air source. When a package on the conveyor belt moves to the sensing area of ​​photoelectric switch 3, photoelectric switch 3 immediately triggers the pulse valve 2 to open. Pulse valve 2 then opens, releasing the pressure-stabilized gas in air tank 1 into the downstream pipeline. As the airflow passes through manual ball valve 5, the valve opening is adjusted to a working pressure of 0.2-0.4 MPa by manual preset valve opening, and finally enters the purge pipeline 4, which is parallel to the conveyor belt. Purge pipeline 4 is divided into two layers, allowing for purge of both the top and bottom surfaces of the package. Through an array of equidistantly distributed inclined nozzles at the bottom of the pipeline, a directional airflow beam is formed to precisely impact the surface of the package, removing adhering dust. After the package leaves the sensing area, pulse valve 2 automatically closes to cut off the airflow, waiting for the next package to trigger the cycle.

[0020] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, based on the technical teachings provided by this utility model and as common knowledge in the field, other equivalent modifications and improvements can be made, and these should also be considered within the protection scope of this utility model.

Claims

1. A conveyor belt package blowing apparatus characterized by: The system includes an air tank (1), the outlet of which is connected in sequence to a pulse valve (2) and a manual ball valve (5), the outlet of which is connected to the air inlet of a purge pipeline (4); the purge pipeline (4) is arranged along the extension direction of the conveyor belt, and its bottom is provided with a nozzle array facing the packaging; a photoelectric switch (3) is installed on the side of the conveyor belt, the photoelectric switch (3) is installed on the side of the conveyor belt, and its signal output end is electrically connected to the control end of the pulse valve (2) to detect the packaging position and trigger the pulse valve (2) to open; After the pressure-stabilized airflow from the air tank (1) is released through the pulse valve (2), the air pressure is adjusted by the manual ball valve (5), and finally sprayed out in a directional manner by the nozzle (8) of the purging pipeline (4) to remove dust.

2. A conveyor belt package blowing apparatus as defined in claim 1, wherein: The pulse valve (2) is an electromagnetic pulse valve, and its opening duration and interval are dynamically controlled by the trigger signal of the photoelectric switch (3).

3. A conveyor belt package blowing apparatus according to claim 1 or 2, characterized in that: The photoelectric switch (3) is located upstream of the starting end of the purge pipe (4), and its sensing direction is perpendicularly aligned with the packaging movement path on the conveyor belt.

4. A conveyor belt package blowing apparatus as defined in claim 3, wherein: The manual ball valve (5) integrates a pressure gauge (6), and its valve body is located on the connecting pipe section between the pulse valve (2) and the purging pipeline (4).

5. A conveyor belt package blowing apparatus as defined in claim 4, wherein: The purging pipeline (4) is connected in sections by quick-release clamps (7), and the nozzle spacing is equidistantly distributed along the direction of the conveyor belt.

6. A conveyor belt package blowing apparatus as defined in claim 5, wherein: The purging pipe (4) is a double-layer ring structure and is installed in parallel above the conveyor belt inlet, which can purify the packaging from both the top and bottom.

Images