A device for collecting exhaust air from a gravure printing machine

Abstract

The utility model relates to the technical field of gravure press, a gravure press waste gas collecting device, including first adsorption shell still include: the rear of first adsorption shell is connected with adsorption pipeline, the inside horizontal sliding connection of first adsorption shell has second adsorption shell, adaptive component, adaptive component sets up in first adsorption shell, wherein, adaptive component includes the first baffle and second baffle of setting in second adsorption shell and first adsorption shell, the utility model discloses the adsorption range of waste gas can be expanded by pulling out second adsorption shell from first adsorption shell, improves waste gas collection efficiency, simultaneously when second adsorption shell pulls out from first adsorption shell, thereby the adsorption hole of first adsorption shell and second adsorption shell is reduced in caliber, keeps the constant of air pressure, thereby ensures that the wind speed of extension area always keeps in the acceptable range.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing machine technology, specifically to a gravure printing machine exhaust gas collection device. Background Technology

[0002] In the continuous roll-to-roll processing industry, including printing, coating, and lamination, gravure printing machines are one of the core production equipment. During operation, volatile organic compounds (VOCs) from the ink continuously escape during printing, drying, and unwinding processes, resulting in fugitive emissions that pollute the workshop environment and the atmosphere. Therefore, effectively collecting and treating VOCs generated by gravure printing machines is a crucial step in meeting environmental regulations and practicing green manufacturing.

[0003] Patent document CN217047950U discloses a gravure printing machine exhaust gas collection device, belonging to the field of cigarette label printing technology. It includes a collection hood arranged along the length of the roller, fixed to the frame of the gravure printing machine by a fixing assembly. The collection hood comprises a first hood body and a second hood body arranged along the length of the roller, with their cavities interconnected. Both the first and second hood bodies have gas collection holes on their sides near the ink carriage. The first hood body has a collection pipe on its opposite side, connected to a fan. This invention uses a collection hood positioned between the ink carriage and the roller to collect organic waste gas, preventing it from escaping into the air at the production line and causing air pollution, thus failing to meet environmental protection requirements. The collection hood is rotatably connected to the fixing assembly, allowing the entire collection hood to be rotated to one side for easy recycling and reduced space occupation when maintenance or repair of the gravure printing machine is required.

[0004] Although the above-mentioned device is designed with a first cover and a second cover to expand the adsorption range to adapt to different production environments, the addition of the second cover is to connect a new air duct in parallel to the adsorption system. The total air volume of the fixed fan will be redistributed to a larger total area, resulting in a significant reduction in the wind speed in both the original adsorption area and the newly expanded area. Utility Model Content

[0005] The purpose of this invention is to provide a gravure printing machine exhaust gas collection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gravure printing machine exhaust gas collection device, comprising: A first adsorption shell, with an adsorption pipe connected to its rear, and a second adsorption shell horizontally slidably connected inside the first adsorption shell. An adapter component is disposed in the first adsorption shell; The adapter components include a first baffle and a second baffle disposed in the second adsorption shell and the first adsorption shell.

[0007] Preferably, the adapter component further includes: An inclined groove is formed on the side of the first baffle near the second adsorption shell; The slider is slidably connected in the inclined groove, and its other end is fixedly connected to the second adsorption shell. It is used to cooperate with the inclined groove to drive the second baffle to reduce the adsorption hole diameter of the second adsorption shell.

[0008] Preferably, the adapter component further includes: A chute is formed on the surface of the first adsorption shell, and the chute is a horizontal rectangular design; A lever, located in a groove, with its other end fixedly connected to a second baffle, is used to slide in the groove and shorten the distance to drive the second baffle to move and reduce the adsorption diameter of the second adsorption shell.

[0009] Preferably, the adapter component further includes: A spring, which is located in the second adsorption shell and between the two levers; The vertical rod is fixed in the second adsorption shell and is located inside the spring, with both paddles sliding vertically on the surface of the vertical rod.

[0010] Preferably, both the first baffle and the second baffle are designed for vertical sliding.

[0011] Preferably, the surfaces of the first baffle and the second baffle are provided with perforations that have the same diameter as the adsorption holes on the surfaces of the first adsorption shell and the second adsorption shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention expands the adsorption range of waste gas and improves waste gas collection efficiency by pulling the second adsorption shell out from the first adsorption shell. At the same time, when the second adsorption shell is pulled out from the first adsorption shell, the slider and the paddle slide in the inclined groove and the sliding groove respectively, which can drive the two sets of first baffles and second baffles to move closer to each other, thereby reducing the diameter of the adsorption holes of the first adsorption shell and the second adsorption shell to maintain constant air pressure, thus ensuring that the wind speed in the expanded area is always kept within an acceptable range. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the first adsorption shell of this utility model; Figure 3 This is a schematic diagram of the structure of the second adsorption shell and the second baffle of this utility model; Figure 4 This is a schematic diagram of the structure of the second adsorption shell surface of this utility model; Figure 5 This is a split schematic diagram of the internal structure of the second adsorption shell of this utility model; Figure 6 This utility model Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0014] In the figure: 100, first adsorption shell; 110, second adsorption shell; 120, adsorption pipe; 200, adapter component; 210, first baffle; 211, inclined groove; 212, slider; 220, sliding groove; 221, second baffle; 222, spring; 223, vertical rod; 224, lever. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Please see Figure 1-6 As shown, a gravure printing machine exhaust gas collection device includes a first adsorption shell 100, and further includes: an adsorption pipe 120 connected to the rear of the first adsorption shell 100, and a second adsorption shell 110 horizontally slidably connected inside the first adsorption shell 100. When it is necessary to collect VOCs waste gas generated in the printing, drying and unwinding processes of ink, the external suction equipment is first turned on and the second adsorption shell 110 adsorbs and collects the waste gas in the air through the adsorption pipe 120. If it is necessary to expand the adsorption range: the second adsorption shell 110 in the first adsorption shell 100 can be stretched outward. The second adsorption shell 110 extends horizontally to the side along the slot opened on the side of the first adsorption shell 100. The first adsorption shell 100 and the second adsorption shell 110 are designed to be connected. Therefore, the exhaust gas adsorption range can be expanded accordingly, and the exhaust gas collection efficiency can be improved. The adapter component 200 is disposed in the first adsorption shell 100; The adapter component 200 includes a first baffle 210 and a second baffle 221 disposed in the second adsorption shell 110 and the first adsorption shell 100. Adapter component 200 also includes: Inclined groove 211 is formed on the side of the first baffle 210 near the second adsorption shell 110; Slider 212 is slidably connected in inclined groove 211, and its other end is fixedly connected to second adsorption shell 110. It is used to cooperate with inclined groove 211 to drive first baffle 210 to reduce the adsorption hole diameter of first adsorption shell 100. When the second adsorption shell 110 is pulled out of the first adsorption shell 100, the slider 212 on the surface of the second adsorption shell 110 will slide in the inclined groove 211. Since the inclined groove 211 and the end of the second adsorption shell 110 being pulled in opposite directions are designed, as the slider 212 moves continuously in the inclined groove 211, it will continuously squeeze the inclined groove 211 to make the two first baffles 210 move closer to each other, thereby blocking the adsorption holes of the first adsorption shell 100. Adapter component 200 also includes: The slide 220 is formed on the surface of the first adsorption shell 100, and the slide 220 is a horizontal rectangular design; The paddle 224 is located in the slide groove 220, and its other end is fixedly connected to the second baffle 221. It is used to slide in the slide groove 220 and shorten the distance to drive the second baffle 221 to move and reduce the adsorption diameter of the second adsorption shell 110. Meanwhile, when the second adsorption shell 110 is pulled outward, the paddle 224 inside it will slide in the groove 220 of the first adsorption shell 100. As the second adsorption shell 110 moves continuously, the range of the paddle 224 in the groove 220 will gradually shrink. At this time, the second baffle 221 will be driven by the paddle 224 and move closer to each other, so as to block and reduce the adsorption hole of the second adsorption shell 110. By using the above-mentioned adaptive shielding adsorption holes, the gas adsorption flow rate of the adsorption holes can be increased, so that the fixed total air volume of the fan can be adapted to a larger total area, resulting in a balance of air velocity between the original adsorption area and the newly expanded area. Adapter component 200 also includes: Spring 222 is located in the second adsorption shell 110 and between the two paddles 224; The vertical rod 223 is fixed in the second adsorption shell 110 and is located inside the spring 222. Both paddles 224 slide vertically on the surface of the vertical rod 223. Both the first baffle 210 and the second baffle 221 are designed for vertical sliding. The surfaces of the first baffle 210 and the second baffle 221 are both provided with perforations that have the same diameter as the adsorption holes on the surfaces of the first adsorption shell 100 and the second adsorption shell 110. Working principle: When it is necessary to collect VOCs waste gas generated during ink printing, drying, and winding processes, the external suction device is first turned on, and the second adsorption shell 110 adsorbs and collects the waste gas in the air through the adsorption pipe 120. If it is necessary to expand the adsorption range, the second adsorption shell 110 in the first adsorption shell 100 can be stretched outward. The second adsorption shell 110 extends horizontally to the side along the slot opened on the side of the first adsorption shell 100, and the first adsorption shell 100 and the second adsorption shell 110 are... The interconnected design allows for a corresponding expansion of the exhaust gas adsorption range and an improvement in exhaust gas collection efficiency. When the second adsorption shell 110 is pulled out from the first adsorption shell 100, the slider 212 and the paddle 224 slide in the inclined groove 211 and the sliding groove 220, respectively. This causes the two sets of first baffles 210 and second baffles 221 to move closer to each other, thereby reducing the diameter of the adsorption holes of the first adsorption shell 100 and the second adsorption shell 110 to maintain a constant air pressure and ensure that the wind speed in the expanded area remains within an acceptable range.

[0017] 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. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A gravure printing machine exhaust gas collection device, characterized in that, include: A first adsorption shell (100) is connected to an adsorption pipe (120) at the rear of the first adsorption shell (100), and a second adsorption shell (110) is horizontally slidably connected inside the first adsorption shell (100). An adapter component (200) is disposed in a first adsorption shell (100); The adapter component (200) includes a first baffle (210) and a second baffle (221) disposed in the second adsorption shell (110) and the first adsorption shell (100).

2. The gravure printing machine exhaust gas collection device according to claim 1, characterized in that: The adapter component (200) also includes: Inclined groove (211), the inclined groove (211) is opened on the side of the first baffle (210) near the second adsorption shell (110); The slider (212) is slidably connected in the inclined groove (211), and its other end is fixedly connected to the second adsorption shell (110). It is used to cooperate with the inclined groove (211) to drive the second baffle (221) to reduce the adsorption hole diameter of the second adsorption shell (110).

3. The gravure printing machine exhaust gas collection device according to claim 1, characterized in that: The adapter component (200) also includes: A chute (220) is formed on the surface of the first adsorption shell (100), and the chute (220) is a horizontal rectangular design; The paddle (224) is located in the groove (220), and its other end is fixedly connected to the second baffle (221). It is used to slide in the groove (220) and shorten the distance to drive the second baffle (221) to move and reduce the adsorption diameter of the second adsorption shell (110).

4. The gravure printing machine exhaust gas collection device according to claim 1, characterized in that: The adapter component (200) also includes: A spring (222) is located in the second adsorption shell (110) and between two paddles (224); The vertical rod (223) is fixed in the second adsorption shell (110) and is located inside the spring (222). Both paddles (224) slide vertically on the surface of the vertical rod (223).

5. The gravure printing machine exhaust gas collection device according to claim 1, characterized in that: Both the first baffle (210) and the second baffle (221) are designed for vertical sliding.

6. The gravure printing machine exhaust gas collection device according to claim 1, characterized in that: The surfaces of the first baffle (210) and the second baffle (221) are provided with perforations that are the same diameter as the adsorption holes on the surfaces of the first adsorption shell (100) and the second adsorption shell (110).

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