JP-2026075741-A - Dust collection system

Abstract

[Problem] To enable the installation of a dust collection device below the paint booth while minimizing the burden on the worker. [Solution] The system comprises a filter unit 21, a trolley 22 having an exhaust passage that communicates with the outlet of the filter unit 21 and moves the filter unit 21 on it, a booth-bottom duct 12 that introduces exhaust gas into the filter unit 21, a discharge device 13 connected to an exhaust port which is the end of the exhaust passage and discharges the exhaust gas flowing in from the filter unit 21, and a storage chamber 11 in which the trolley 22 is housed. The storage chamber 11 has a door 11a facing the direction opposite to the discharge device 13, and the trolley 22 has a handle 22b that contacts the door 11a when the door 11a is closed. When the door 11a is closed toward the inside of the storage chamber 11, the trolley 22 is pushed toward the door 11a via the handle 22b, and the exhaust port of the trolley 22 is connected to the discharge device 13. [Selection Diagram] Figure 1

Inventors

• 鈴木 貴之
• 小野田 鈴香

Assignees

• トヨタ自動車株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (5)

1. A dust collection system positioned below a painting chamber where spray painting is performed on an object, for collecting unapplied paint mist contained in the exhaust gas of the painting chamber, A filter unit that collects unapplied paint mist, A trolley having an exhaust passage that communicates with the outlet of the filter unit, and configured to be movable on which the filter unit is mounted, The filter unit includes a duct below the booth through which the exhaust gas is introduced, A discharge device connected to the exhaust port which is the end of the exhaust passage, discharges the exhaust gas flowing in from the filter unit, The system comprises a storage room in which the trolley is housed, The aforementioned containment room is The storage chamber has a door that separates it from the outside of the storage chamber, in a direction opposite to the discharge device. The aforementioned trolley is, It is located on the opposite side from the aforementioned discharge device and has a handle that contacts the door when the door is closed. When the door is closed toward the inside of the containment chamber, the exhaust port provided on the trolley is pushed toward the door via the handle, thereby connecting to the exhaust device. Dust collection system.
2. The aforementioned handle is configured to be foldable. The dust collection system according to claim 1.
3. The aforementioned trolley is, With the trolley housed in the aforementioned chamber, the upper end of the opening on which the filter unit is placed and the lower end of the booth lower duct are configured to overlap along the direction of movement of the trolley. The duct below the booth is pivotable along the direction of movement of the trolley. The dust collection system according to claim 1.
4. The trolley is further provided with a guide positioned above it and extending in a predetermined direction, By sealing the space between the guide and at least a portion of the upper end of the trolley with a sealing material, The lower end of the booth duct and the upper end of the trolley are sealed around their entire circumference. The dust collection system according to claim 1.
5. A single storage compartment is provided with multiple trolleys and doors corresponding to the trolleys. The dust collection system according to claim 1.

Description

This disclosure relates to a dust collection system. Generally, dust collection systems in large paint booths are installed in the lower part of the painting chamber. In recent years, due to the increasing demand for energy-saving and space-saving solutions, there is a growing need for more compact paint booths, and space-saving measures are required in the lower part of the painting chamber. Patent Document 1 discloses a painting system that connects a filter unit to the booth floor discharge section to collect paint from the exhaust gas. This painting system describes connecting a filter unit to the booth floor discharge section to collect paint from the exhaust gas. The filter unit is equipped with a paper filter, and its structure ensures airtightness without weakening the filter material. Patent No. 6831499 This is a perspective view showing the configuration of the dust collection system.This is a perspective view showing some of the components connected to the dust collection chamber and the trolley.This is a perspective view of the filter unit and the trolley.This is a perspective view showing examples of changes in the handles of a trolley.This diagram shows a configuration for sealing the space between the trolley and the duct under the booth.This is a cross-sectional view showing an example of a configuration in which hinges are not used for sealing between the trolley and the duct under the booth. Embodiment 1 The dust collection system according to this embodiment will now be described with reference to the drawings. Figures 1(a) and 1(b) are perspective views showing an overview of the dust collection system 1. This dust collection system 1 is located below a painting chamber (not shown) where spray painting is performed on an object. As shown in Figures 1(a) and 1(b), the dust collection system 1 comprises a housing chamber 11 located below the painting chamber and housing a trolley 22 on which a filter unit 21 is set; a booth-bottom duct 12 located below the painting chamber and above the housing chamber 11, connecting the painting chamber and the housing chamber 11; a discharge device 13 for discharging exhaust gas from the housing chamber 11; and an exhaust duct 14 through which the exhaust gas is discharged from the housing chamber 11 via the discharge device 13. Here, the exhaust duct 14 is assumed to be located at the rear of the housing chamber 11. In the painting chamber, spray painting is performed on the object to be painted. The dust collection system 1 captures the unapplied paint mist contained in the exhaust gas from this spray painting process. The containment chamber 11 includes a filter unit 21, a trolley 22 on which the filter unit 21 is mounted, a rail 23 on which the wheels 22c of the trolley 22 are mounted, and a guide 24. In the following description, since dust collection is performed within the gas inserted into the trolley 22 on which the filter unit 21 is mounted, this section will be described as the dust collection device. However, regarding other components, for example, the dust collection device may include at least one of the containment chamber 11, the booth lower duct 12, the discharge device 13, and the exhaust duct 14, or all of them together. Here, the containment chamber 11 is provided with a door 11a that separates the interior from the exterior. This door 11a is a double door that opens outwards. Figure 1(a) shows the door 11a in the closed position, and Figure 1(b) shows the door 11a in the open position. First, we will explain the configuration and operation of the dust collection system using the filter unit 21 mounted on the trolley 22, as well as the operation of moving the trolley 22 itself. Figures 2(a) and 2(b) show the filter unit 21 mounted on the trolley 22 and an example of the surrounding components. Here, as shown in Figure 2(a), the direction in which the trolley 22 moves is defined as the front-to-back direction, the direction in which the exhaust duct 14 is located is defined as the rear side, and the direction in which the handle is provided on the trolley 22 (as will be described later) is defined as the front side. Furthermore, the left-to-right direction of the storage compartment 11 is defined as the left-to-right direction from a viewpoint looking from the front to the rear. As shown in Figure 2(a), the trolley 22 is a rectangular box-shaped structure with an open top and a space inside for housing the filter unit 21. The trolley 22 has multiple wheels 22c at its contact points and is movable in both the forward and backward directions. Inside the trolley 22, nine filter units 21, each cubic or rectangular in shape, are arranged in a grid of three from front to back and three to left to right. Figures 3(a) to 3(d) are perspective views showing the various states of the filter unit 21 and the trolley 22. The filter unit 21 is a filter that collects unapplied paint mist. Figure 3(a) shows an example of nine filter units 21 set on th