US-12616926-B2 - Cleaning frame for waste gas purification apparatus

US12616926B2US 12616926 B2US12616926 B2US 12616926B2US-12616926-B2

Abstract

The present application provides a cleaning frame, for keeping a waste gas purification apparatus ( 150 ) in a cleaning solution, the waste gas purification apparatus comprising an end plate ( 132 ) and a connecting component ( 131 ) located above the end plate, and the cleaning frame comprising a bottom ( 101 ) and a sidewall ( 103 ). The bottom is provided with a channel running through the bottom. The sidewall is formed by upward extension from the bottom around the channel; the sidewall and the bottom enclose a holding cavity. The cleaning frame is configured such that the waste gas purification apparatus can be kept floating in the cleaning solution by the cleaning frame, and the sidewall ( 103 ) of the cleaning frame can at least partially float above the surface of the cleaning solution, so as to isolate the connecting component of the waste gas purification apparatus from the cleaning solution. At the same time as enabling the cleaning of a filtration component ( 133 ) in the waste gas purification apparatus, the cleaning frame of the present application eliminates the operating step of manually removing the connecting component from the waste gas purification apparatus, so that the operating steps involved in cleaning the waste gas purification apparatus are simplified, and the time cost is low.

Inventors

Yuexin Chen
Yuwei WANG

Assignees

ILLINOIS TOOL WORKS INC.

Dates

Publication Date: 20260505
Application Date: 20211216
Priority Date: 20201218

Claims (10)

1 . A cleaning system configured to clean a waste gas purification apparatus including an end plate, a filtration component extending from the end plate on a first side of the end plate, and a connecting component supported on the end plate on a second side of the end plate, the second side of the end plate being opposite to the first side of the end plate, the cleaning system comprising: a cleaning tank configured to hold a cleaning solution; and a cleaning frame configured to support the waste gas purification apparatus in the cleaning solution, the cleaning frame including a bottom including a channel running through the bottom, and a sidewall formed by upward extension from the bottom around the channel, the bottom having a retaining part between the sidewall and the channel, and the sidewall and the retaining part enclosing a holding cavity, wherein a dimension of the channel is smaller than a dimension of the end plate of the waste gas purification apparatus, the end plate of the waste gas purification apparatus being supported by the retaining part and configured to seal the channel such that the connecting component is located above the retaining part, and located within the holding cavity, and wherein the cleaning frame is configured to maintain the waste gas purification apparatus in a floating position in the cleaning solution with the sidewall of the cleaning frame can at least partially float above the surface of the cleaning solution to maintain the filtration component in the cleaning solution of the cleaning tank and to isolate the connecting component of the waste gas purification apparatus from the cleaning solution.
2 . The cleaning system set forth in claim 1 , wherein the height of the sidewall is set such that when the end plate of the waste gas purification apparatus is set up on the bottom, the top of the sidewall is higher than the top of the waste gas purification apparatus.
3 . The cleaning system set forth in claim 1 , wherein the cleaning frame further includes a counterweight connected to the sidewall to keep the waste gas purification apparatus on the surface of the cleaning solution in a balanced fashion.
4 . The cleaning system set forth in claim 3 , wherein the position of the counterweight is set according to the center of gravity of the waste gas purification apparatus.
5 . The cleaning system set forth in claim 3 , wherein the counterweight is connected to the sidewall by welding.
6 . The cleaning system set forth in claim 1 , wherein the cleaning frame further includes at least two connecting means, the at least two connecting means being arranged on the cleaning frame to connect the waste gas purification apparatus to the cleaning frame.
7 . The cleaning system set forth in claim 6 , wherein the at least two connecting means are arranged on the bottom, around the channel.
8 . The cleaning system set forth in claim 6 , wherein each of the at least two connecting means includes a bolt connected to the bottom, a clamping member having a bolt hole through which the bolt can pass, the clamping member being configured to abut the waste gas purification apparatus, and a nut configured to mate with the bolt to connect the waste gas purification apparatus to the cleaning frame.
9 . The cleaning system set forth in claim 1 , wherein the connecting component is a component that is easily corroded by the cleaning solution.
10 . The cleaning system set forth in claim 1 , wherein the cleaning frame is made of metal.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a U.S. National Phase Application under 35 U.S.C. § 371 of International (PCT) Patent Application Serial No. PCT/US2021/063853, titled “CLEANING FRAME FOR WASTE GAS PURIFICATION APPARATUS” filed on Dec. 16, 2021, which claims priority to Chinese Application Serial No. 202011504972.6, titled “CLEANING FRAME” filed Dec. 18, 2020; the entire disclosure of each application is hereby incorporated herein by reference in its entirety for all purposes. TECHNICAL FIELD The present application relates to a cleaning frame, in particular to a cleaning frame for cleaning a waste gas purification apparatus of a reflow oven. BACKGROUND ART A reflow oven is a piece of equipment used in the manufacture of printed circuit boards. A reflow oven can heat up solder paste and thereby solder electronic components onto a circuit board. Solder paste contains solder and flux; when the solder paste is melted, the flux will change to a gas and be discharged from the reflow oven. In general, a waste gas purification apparatus is provided in the reflow oven. Flux-containing waste gas is discharged from the reflow oven via the waste gas purification apparatus. The waste gas purification apparatus can filter the flux-containing waste gas, such that the flux accumulates and becomes attached within the waste gas purification apparatus, so that the waste gas discharged from the waste gas purification apparatus contains no flux, thus avoiding environmental pollution. However, it is difficult to clean the waste gas purification apparatus in which flux has accumulated and become attached. SUMMARY OF THE INVENTION The present application provides a cleaning frame, for keeping a waste gas purification apparatus in a cleaning solution, the waste gas purification apparatus comprising an end plate and a connecting component located above the end plate, and the cleaning frame comprising a bottom and a sidewall. The bottom is provided with a channel running through the bottom. The sidewall is formed by upward extension from the bottom around the channel, the bottom having a retaining part between the sidewall and the channel. The sidewall and the retaining part enclose a holding cavity. A dimension of the channel is smaller than a dimension of the end plate of the waste gas purification apparatus, so that the end plate of the waste gas purification apparatus can be set up on the retaining part and seal the channel, such that the connecting component is located above the retaining part, and located within the holding cavity. The cleaning frame is configured such that: the waste gas purification apparatus can be kept floating in the cleaning solution by the cleaning frame, and the sidewall of the cleaning frame can at least partially float above the surface of the cleaning solution, so as to isolate the connecting component of the waste gas purification apparatus from the cleaning solution. In the cleaning frame according to the present application, the height of the sidewall is configured such that: when the end plate of the waste gas purification apparatus is set up on the bottom, the top of the sidewall is higher than the top of the waste gas purification apparatus. The cleaning frame according to the present application comprises a counterweight, the counterweight being connected to the sidewall, in order to keep the waste gas purification apparatus on the surface of the cleaning solution in a balanced fashion. In the cleaning frame according to the present application, the position of the counterweight is set according to the center of gravity of the waste gas purification apparatus. In the cleaning frame according to the present application, the counterweight is connected to the sidewall by welding. The cleaning frame according to the present application comprises multiple connecting means, the multiple connecting means being arranged on the cleaning frame, in order to connect the waste gas purification apparatus to the cleaning frame. In the cleaning frame according to the present application, the multiple connecting means are arranged on the bottom, around the channel. In the cleaning frame according to the present application, each of the multiple connecting means comprises a bolt, a clamping member and a nut. The bolt is connected to the bottom. The clamping member is provided with a bolt hole through which the bolt can pass, the clamping member being configured to abut the waste gas purification apparatus. The nut is able to mate with the bolt, so as to connect the waste gas purification apparatus to the cleaning frame. In the cleaning frame according to the present application, the connecting component is a component that is easily corroded by the cleaning solution. The cleaning frame according to the present application is made of metal. The cleaning frame of the present application can keep the waste gas purification apparatus floating on the cleaning solution in a balanced fashio