摘要:
A mold-pressing device including a seat body formed with a horizontal fissure at one end and a vertical chamber communicated with the fissure. A mold block is disposed in the chamber. One face of the mold block is disposed with a solid die, while the other face of the mold block is disposed with a channel passing through the mold block. A pressing lever is pivotally disposed in the channel of the mold block. A housing covers the seat body and is formed with a window for a pressing section of the pressing lever to extend therethrough. In use, a paper or a sheet is pushed into the fissure of the seat body and then the pressing section of the pressing lever is depressed, whereby a protuberance of the pressing lever is moved downward to force the mold block downward with the die punching the paper or the sheet placed in the fissure. Therefore, a product with a shape as that of the die is formed.
摘要:
An automatic hole punch is disclosed for creating holes in a sheave of sheet material. The automatic hole punch is preferably user-selectable between punching modes, such as two-hole and three-hole modes. A motor is coupled to a camshaft by a gear train. The cam shaft carries a plurality of cams each having an associated punch. As the camshaft rotates, the cams sequentially drive corresponding punches. However, depending on the selected modality, one or more punches may be idle by not being engaged with their respective cams, thus resulting in varying combinations of driven punches resulting in different hole patterns. Finally, a spacer can be inserted into a material receiving slot for adjusting the relative positioning of the material to the punches to properly position the hole pattern along an edge of the material to be punched.
摘要:
A punch press for machining a plate-shaped workpiece by cooperation of an upper metal mold mounted on an upper turret and a lower metal mold mounted on a lower turret. The upper turret and the lower turret are rotationally driven. A plurality of lower metal molds are provided corresponding to a selected one of the upper metal molds, and the workpiece is machined after selection of one lower metal mold from among the plurality of lower metal molds.
摘要:
The punching machine comprises a base frame which defines an upper horizontal work table for working metal sheets and bars, an operating turret positioned above said work table and housing a punching ram, a first support member for at least one male punch holder driven rotationally by a respective first motor assembly and supported on said turret in vertical alignment below said punching ram, a second support member for a female die holder inserted in said work table in vertical alignment with said first support member and driven rotationally by a respective second motor assembly synchronised with said first motor assembly, at least one element for selection and contact with a male punch interposed between said ram and said male punch holder driven rotationally by a respective third motor assembly; said male punch holder and female die holder can be driven by respective drive arrangements with synchronous rotational movement around a common vertical axis relative to said first support member and said second support member.
摘要:
A motor-driven eyeleting machine includes two end eyeleting rod holders and two middle eyeleting rod holders respectively holding a respective eyeleting rod at one side of a revolving axle, two end cam wheels fixedly mounted on the revolving axle and rotated with the revolving axle to reciprocate the eyeleting rods in the end eyeleting rod holders respectively, two middle cam wheels respectively mounted on the revolving axle and adapted to reciprocate the eyeleting rods in the middle eyeleting rod holders selectively, and a shifter coupled to the middle cam wheels and shifted between two positions to alternatively set one middle cam wheel in the working position and the other middle cam wheel in the idle position.
摘要:
A modular conversion unit for converting punching machines from single-punch to multiple-punch comprises an upper main cylindrical magazine rotatably supported by a turret of the punching machine and provided with a plurality of radial seats for accommodating corresponding upper secondary cylindrical magazines, supporting a preset number of punches surmounted by corresponding hammer elements fitted so as to rotate, a corresponding lower main cylindrical die-holder magazine accommodated so as to rotate synchronously and in alignment with said upper cylindrical magazine in a hollow seat formed in a worktable of the punching machine and provided with a corresponding number of radial seats for lower secondary die-holders vertically aligned with the upper secondary magazines, each die-holder being provided with a plurality of dies whose number is equal to the number of the punches.
摘要:
A punch includes a base, a plurality of punch pins, a lever and a plank. The base includes a lower member defining a plurality of holes and an upper member defining a plurality of holes corresponding to the holes defined in the lower member. Each of the punch pins is for insertion through one of the holes defined in the upper member and one of the holes defined in the lower member. The lever is pivotally mounted on the base. The plank defines a plurality of holes. The plank is movably attached to the lever between several positions in each of which it pushes a different set of the punch pins when the lever is operated.
摘要:
A craft punch aid includes a base portion and a lever portion pivotally attached to the base portion. A rotatable pressure head assembly is attached to the lever portion, the pressure head assembly includes a pressure stub for accommodating punches of differing heights. The base portion may include a pivot device for producing designs of differing radii on a work-piece, and the craft punch aid may include a straight guide for attachment to the base portion for enabling straight-line punching of a work-piece.
摘要:
An improved and more efficient device and method for creating multiple punch holes during a finishing process of paper sheets and other sheet materials. A highlight of the present invention is the ability to select between at least two configurations of punch holes automatically, without manual adjustment, and nullon-the-flynull without interruption of the sheet or paper flow. The improved sheet punch comprises two rotatable punches set at different angles such that when one intersects the sheet path, the other clears the sheet path. The speed of rotation is controlled such that the non-selected punch intersects the sheet path in a space between pitches.
摘要:
A stamping device includes a base body; an elongated punch having a longitudinal axis; a supporting arrangement for holding the punch in the base body and for guiding the punch for axial displacements between an advanced position and a retracted position; a driving unit releasably held in the base body and including a driving device for axially displacing the punch; a coupling device having a first state in which the coupling device operatively connects the driving device with the punch and a second state in which the driving device is disconnected from the punch; and a receiving arrangement for holding the punch in a desired axial position when the coupling device is in its second state.