Electric press with dust generation preventing device

An electric press with a dust distribution preventing feature for use in a building space, said electric press comprising:

• a plurality of essential elements which generate dust in operation, said essential elements including a work pressing element, a drive element for driving the work pressing element, and a transmission element provided between the drive element and the work pressing element for transmitting a driving force of the drive element to the work pressing element to move the work pressing element relative to a workpiece to be processed;
• a casing comprising a plurality of walls structured to make said casing airtight, said casing covering said essential elements;
• an elongated pipe having one end located within said casing and an opposite end located in open air outside said building space;
• and
• a blower communicated with said pipe and operated to absorb air from within said casing into said pipe and cause the absorbed air to flow through said pipe to the open air outside said building space;
• wherein said elongated pipe comprises a first portion provided with a plurality of apertures and extending along a route around and adjacent to said essential elements within said casing, and a second portion having one end thereof connected to said first portion at an opening formed on one of said walls of said casing and extending out of said building space.

An electric press with a dust distribution preventing feature for use in a building space, said electric press comprising:

• a plurality of essential elements which generate dust in operation, said essential elements including a work pressing element, a drive element for driving the work pressing element, and a transmission element provided between the drive element and the work pressing element for transmitting a driving force of the drive element to the work pressing element to move the work pressing element relative to a workpiece to be processed;
• a casing comprising a plurality of walls structured to make said casing airtight, said casing covering said essential elements;
• an elongated pipe having one end located within said casing and an opposite end located in open air outside said building space;
• a blower communicated with said pipe and operated to absorb air from within said casing into said pipe and cause the absorbed air to flow through said pipe to the open air outside said building space;
• and
• at least one cooling passage formed through at least one of said walls of said casing and configured to be (i) closed in a hermetical manner when the airtightness of said casing needs to be maintained and (ii) opened for allowing outside air to flow into said casing to cool down said essential elements within said casing when the airtightness of said casing needs not be maintained;
• wherein said elongated pipe comprises a first portion provided with a plurality of apertures and extending along a route around and adjacent to said essential elements within said casing, and a second portion having one end thereof connected to said first portion at an opening formed on one of said walls of said casing and extending out of said building space.

An electric press with a dust distribution preventing feature for use in a building space, said electric press comprising:

• a plurality of essential elements which generate dust in operation, said essential elements including a work pressing element, a drive element for driving the work pressing element, and a transmission element provided between the drive element and the work pressing element for transmitting a driving force of the drive element to the work pressing element to move the work pressing element relative to a workpiece to be processed;
• an airtight casing for covering said essential elements;
• an elongated pipe having one end located within said casing and an opposite end located in open air outside said building space;
• and
• an air absorbing element communicated with said pipe and operated to cause air in said casing to flow through said pipe to the open air outside said building space;
• wherein
• the work pressing element includes a ram and the drive element includes an electric motor;
• and
• said ram is extendable to project out of said casing while remaining hermetically sealed therewith for pressing said workpiece placed outside said casing.