A manufacturing method for a bag-type filter assembly

Abstract

This invention relates to a method for manufacturing a bag filter assembly. The steps include placing a first frame with a hollow space on a fixture, with a support rod of the fixture passing through the hollow space of the first frame; then, fitting a bag filter onto the support rod, with the bag opening of the bag filter extending into a groove surrounding the hollow space of the first frame; then, correspondingly fitting a second frame, also with a hollow space, onto the first frame, with a protrusion surrounding the hollow space of the second frame correspondingly embedded in the groove of the first frame. At this point, the first and second frames together clamp the bag opening of the bag filter; finally, removing the fixture and using ultrasonic heating technology to bond and fix the first frame, the second frame, and the bag filter together as a single unit. This manufacturing method of the invention can securely attach the bag opening of the bag filter to the frame.

Claims

1. A method for manufacturing a bag filter assembly, comprising the following steps in sequence: A fixture is provided, the fixture including a base, the top surface of the base having a plurality of protrusions, each of the protrusions having a plurality of support rods; A first frame is fitted onto the fixture, and the first frame forming a first penetration space at the corresponding multiple protrusions is fitted onto the fixture, so that the multiple support rods on each protrusion pass through the corresponding first penetration space, and each protrusion is respectively embedded in each corresponding first penetration space, thereby positioning the first frame on the fixture. A bag-type filter is fitted at each of the protrusions, with each support rod on each protrusion extending into the bag body of the corresponding bag-type filter. The bag body of the bag-type filter is held upright by the support rods, and the opening of each bag-type filter is fitted onto the frame wall around each of the first penetration spaces of the first frame. A second frame is fitted on top of the first frame, with second penetration spaces formed at the first penetration spaces. In this state, the bag-type filter fitted onto the support rods protrudes through the second penetration spaces, and the opening of the bag-type filter is clamped by the frame wall around the first penetration space of the first frame and the frame wall around the second penetration space of the second frame. Fix the first frame and the second frame, remove the initially positioned first frame, second frame and multiple bag filters from the fixture, heat and bond the overlapping parts of the first frame and second frame using ultrasonic technology, and combine and fix the already positioned first frame, second frame and multiple bag filters together.

2. A method for manufacturing a bag filter assembly, comprising the following steps in sequence: A plurality of fixtures are provided, each fixture including a base, the top surface of the base having a plurality of bosses, and each boss having a plurality of support rods; A bag-type filter is fitted onto each of the fixtures, with each support rod on each protrusion extending into the bag body of the corresponding bag-type filter. The bag body of the bag-type filter is held upright by the support rods, and the opening of each bag-type filter is fitted around the periphery of each protrusion. A second frame is fitted onto the fixture, forming a second penetration space at the corresponding protrusion. The second frame is fitted onto the fixture, allowing the bag-type filter fitted onto the multiple support rods to pass through the corresponding second penetration space. The frame wall around the second penetration space of the second frame corresponds to the opening of the bag-type filter. The second frame and the opening of the bag-type filter are positioned, and the opening of the bag-type filter is glued and fixed to the frame wall around the second penetration space using ultrasonic technology. The fixture is removed, detaching it from the glued and positioned second frame and bag-type filter. A first frame is assembled, and a first penetrating space is formed in the first frame corresponding to a plurality of second frames. A plurality of second frames are placed in the first penetrating spaces of the first frame, and the bag opening of the bag filter is clamped by the frame wall around the first penetrating space of the first frame and the frame wall around the second penetrating space of the second frame. The first frame and the second frame are fixed, and the overlapping parts of the first frame and the second frame are heated and bonded by ultrasonic technology, so that the first frame, the plurality of second frames and the plurality of bag filters that have been positioned together are combined and fixed.

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