Here is an example of a dedicated machine cover with a large three-panel sliding door developed by Mitsuya.
In this case, we created an overall assembly drawing in 3D CAD based on the specifications for the cover provided by the customer, and after obtaining the customer's approval, we created production drawings in 2D CAD for manufacturing. Typically, machine covers are often made solely through sheet metal processing; however, due to the size of the three-stage sliding door in this project, if the door is operated by a single handle on the worker's side, twisting occurs because the worker's side and the opposite side are separated, leading to a phenomenon where the roller on the opposite side digs into the rail, preventing the three-stage sliding door from moving. Therefore, we reinforced the inside of all three-stage sliding doors with components made from square pipes and other fabricated materials to enhance the rigidity of the door body. This fabrication helps to suppress the twisting phenomenon, allowing the rollers on both the worker's side and the opposite side to operate simultaneously, enabling the three-stage sliding door to be opened and closed effortlessly with just one handle on the worker's side.
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basic information
This machine is designed for high-pressure coolant specifications, which results in a significant amount of coolant droplets splattering and adhering to the inside of the cover. It is particularly expected that many droplets will accumulate on the ceiling inside the three-stage sliding door and the pocket cover of the sliding door. When the three-stage sliding door is opened, the droplets that have accumulated on the ceiling of the three-stage sliding door will fall onto the ceiling surface of each sliding door, and if the droplets accumulate, they will drip down to the operator's side or the non-operator's side, dirtying the appearance of the cover. Additionally, if droplets are accumulating at the points where the three-stage sliding door is supported or at the tip of the first sliding door, when the operator opens the sliding door, droplets may fall onto the operator's head, causing discomfort. Therefore, a flat surface is created to cover the corner pipes on the ceiling of the interior of the second and third sliding doors and the pocket cover, and brushes are attached where the sliding doors overlap. This design allows the droplets that have adhered to the ceiling surface to be brushed into the machine when opening the sliding doors, preventing droplets from falling onto the ceiling surface of the outer sliding door. Furthermore, by tilting the area that supports the three-stage sliding door and the tip of the first sliding door towards the non-operator's side, we have devised a way to prevent coolant from accumulating and to ensure that coolant droplets do not fall on the operator when opening the sliding door.
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Applications/Examples of results
At Mitsuya, we have been involved in the design, manufacturing, and installation of dedicated machine covers not only for new projects but also for modifications related to machine upgrades and various solutions for issues encountered. If you have any concerns regarding machine covers, please feel free to consult with Mitsuya.
Company information
We were founded as a company that handles everything from design to installation of safety covers for dedicated work machines in-house. Currently, based on the technology and knowledge cultivated within this field, we provide a wide variety of sheet metal products, can manufacturing products, machined products, painting, and plating in total collaboration with partner companies, in addition to safety covers. Our in-house design utilizes 3D CAD, which has received positive feedback for being easy to understand when we ask customers to confirm specifications. We specialize in small-lot production of various types, and we strive for continuous technical improvement to respond to customer needs, including short delivery times, quality enhancement, and cost reduction through value analysis proposals.
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