High efficient coating machine
High efficient coating machine
High efficient coating machine
An efficient coating machine capable of hardening coating on works in a short hardening time with a small-sized hardening oven at reduced costs. The coating machine has a painting booth, a hardening oven and a work transfer device. The work transfer device has a rotary shaft provided at a center of the coating machine, and a plurality of hangers, each holding one piece of work and being turnable about the rotary shaft. The painting booth and the hardening oven are arranged around the rotary shaft into an arc-shaped configuration, respectively. The hardening oven has an arc-shaped work passage adapted to move the works. One piece of work is coated in the painting booth and continuously transferred to the work passage of the hardening oven while being held with each of the hangers and turned about the rotary shaft. In the work passage, the work is blown with hot air fed from a hot air generating device for hardening the coating on the work.
1. A coating machine for applying a coating to works, and heating the coating applied to the works for hardening, comprising: a painting booth for applying the coating to the works; a hardening oven for hardening the coating applied to the works; and a work transfer device, said work transfer device having a rotary shaft provided at a center of the coating machine, and a plurality of hangers, each holding one piece of the works and being turnable about said rotary shaft, said painting booth and said hardening oven being arranged around said rotary shaft into an arc-shaped configuration, respectively, said hardening oven having an arc-shaped work passage adapted to move the works, whereby the works are coated within said painting booth and continuously transferred in said work passage of said hardening oven while being held with said hangers and turned about said rotary shaft, and then, the works are blown with hot air fed from a hot air generating device for hardening the coating on the works.
2. A coating machine as claimed in claim 1, wherein said hardening oven includes an outside air feeding wall and an inside air feeding wall, each being tubular and having an arc-shaped cross-section, said work passage is defined between said outside air feeding wall and said inside air feeding wall, and further comprising a plurality of screen plates which are respectively provided in an interior of each of said outside air feeding wall and said inside air feeding wall for screening passages for hot air locally.
3. A coating machine as claimed in claim 1, wherein one piece of work is secured to each of said hangers, and said work transfer device rotates to transfer said work secured to each of said hangers to said painting booth and said hardening oven continuously.
4. A coating machine as claimed in claim 1, wherein said outside air feeding wall and said inside air feeding wall are arranged such that hot air is supplied to said interior of each of said outside air feeding wall and said inside air feeding wall from an inlet of said work passage, and is sucked out from an outlet of said work passage.
5. A coating machine as claimed in claim 1, wherein the works are weather strips, and the coating is composed of a low friction material.
The coating machine in accordance with the present invention for applying coating to works, and heating the coating applied to the works for hardening has a painting booth for applying the coating to the works, a hardening oven for hardening the coating applied to the works, and a work transfer device. The work transfer device has a rotary shaft located at a center of the coating machine, and a plurality of hangers, each holding one piece of work and being turnable about the rotary shaft. The painting booth and the hardening oven are arranged around the rotary shaft into an arc-shaped configuration, respectively. The hardening oven has an arc-shaped work passage adapted to move the works. One piece of work is coated within the painting booth and continuously transferred to the work passage of the hardening oven while being held with each of the hangers and turned about the rotary shaft. And in the work passage of the hardening oven, the work is blown with hot air fed from a hot air generating device for hardening the coating thereon.
With this arrangement of the coating machine, the work transfer device has the rotary shaft provided at the center of the coating machine, and a plurality of hangers, each holding one piece of work and being turnable about the rotary shaft, so that the painting booth, the hardening oven and the work transfer device can be made small, whereby the equipment costs can be reduced. In addition, the works can be coated one by one so that the number of unfinished works in the painting process can be reduced so as to be efficient. And the works can be secured to and detached from the hanger in the same operation position.
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