摘要:
Apparatus for supplying and transferring electronic components includes a plurality of pallets each for receiving and holding one electronic component. An endless conveying mechanism conveys the pallets in and intermittent fashion on a substantially horizontal plane. A supply unit mechanism selectively supplies electronic components to the pallets.
摘要:
A device for cutting lead wires of an electronic circuit element mounted on a printed circuit board into a desired length and for bending the lead wires to be close to the bottom surface of the printed circuit board is capable of dealing with an electronic circuit element having three lead wires as well as that having two lead wires. The device comprises a fixed block having a stationary blade which has two side holes and a central hole formed therethrough, a pair of side levers having laterally movable blade members which are slidable on the surface of the stationary blade to cut and bend lead wires inserted through the side holes of the stationary blade, and a central lever having a movable blade member which are slidable on the surface of the statonary blade to cut and bend a lead wire inserted through the central hole of the stationary blade.
摘要:
Apparatus for supplying and transferring electronic components includes a plurality of pallets each for receiving and holding one electronic component. An endless conveying mechanism conveys the pallets in an intermittent fashion in a substantially horizontal plane. A supply unit mechanism selectively supplies electronic components to the pallets.
摘要:
A simplified apparatus for automatically inserting electronic components of different forms into printed circuitboards successively conveyed along a travel path which extends along a horizontal plane includes a feed mechanism for separately and simultaneously feeding different pluralities of electronic components of different forms to a pallet operative for separately and simultaneously receiving and conveying the electronic components to an inserting device operative for separately and simultaneously inserting the electronic components into successive printed circuitboards, each board in its turn.
摘要:
Apparatus for inserting square pins into a printed circuit board wherein during one stroke of a master cylinder, each square pin is cut by a movable cutter in combination with a fixed cutter from an elongated square pin-forming wire held in a chuck. The square pin is held by the movable cutter and then is moved over a guide member and then is further transferred into the guide member in accordance with the movement of a push rod moved by a main slider actuated by the master cylinder. The square pin is finally inserted into a printed circuit board by further movement of the push rod.
摘要:
A process for mounting chip type circuit elements on printed circuit boards and apparatus therefor are capable of eliminating the necessity for arranging an X-Y table, thereby to simplify the structure of the apparatus, and decreasing the time required to mount one circuit element on a printed circuit board. Chip type circuit elements are sucked up by a plurality of suction pins arranged in each mounting head, transferred to a centering and turning section and then progressively mounted on a printed circuit board. The mounting head is adapted to carry out the reciprocating movement in the X-direction a plurality of times while it carries out the reciprocating movement in the Y-direction one time.
摘要:
An object of the present invention is to provide a paper splicing apparatus that can improve workability of an operator and splicing accuracy at low cost with a simple construction.Thus, a paper splicing apparatus that carries out paper splicing by sticking together a tip of a new web pulled out from a rolled web to an old web drawn out from another rolled web comprises a first reciprocating member provided to freely reciprocate in an approaching/departing direction to/from a surface of the old web, a second reciprocating member provided to freely reciprocate in the approaching/departing direction independently of the first reciprocating member, a first roller pivotally supported to freely rotate with respect to the first reciprocating member, and a second roller pivotally supported to freely rotate with respect to the second reciprocating member with the new web fastened between the first roller and the second roller.
摘要:
It is to propose an internal member for a plasma treating vessel having excellent resistances to chemical corrosion and plasma erosion under an environment containing a halogen gas and an advantageous method of producing the same, which is a member formed by covering a surface of a substrate with a multilayer composite layer consisting of a metal coating formed as an undercoat, Al2O3 film formed on the undercoat as a middle layer and Y2O3 sprayed coating formed on the middle layer as a top coat.
摘要:
A composite steel sheet including a steel base member; an undercoat having opposed surfaces and a thickness of 10-750 .mu.m obtained by spraying one or more spraying materials selected from metals, non-oxide ceramics, oxide ceramics and cermets onto the steel base member. The undercoat has an oxide layer of not less then 0.5 .mu.m in thickness on one of the opposed surfaces positioned away from said steel base member. A fired topcoat is formed on the oxide layer of the undercoat from a vitreous coating having a linear expansion coefficient of 4-11.times.10.sup.-6 /.degree.C.
摘要:
To provide heat-resistant alloy members that maintain the resistance to corrosion at high temperature of the chromized layer formed on Ni- or Co-base heat-resistant alloys and which yet are improved in various mechanical properties. The improved Ni- or Co-base heat-resistant alloy member having a chromized layer that is characterized by having a chromium concentration of 25-80% and a thickness of 10-100 .mu.m. This member is produced by controlling both the vapor pressure of a chromium halide being used in chromization and the temperature therefor in such a way that the chromized layer being formed is adjusted to have a chromium concentration and a thickness within the ranges specified above.