摘要:
In an apparatus for punching out a part from a workpiece or blank, particularly for punching out a segment from a photograph, for the engagement of the workpiece a punching table is arranged under a punching plate which can be rotated away and lowered in direction x, a punching pattern being placed on the workpiece.
摘要:
A force may be applied to any point along a line which may be straight or curved in a plane or in space. For this purpose a force applicator is used which includes a pressure expandable hose section closed at its ends, a reaction member against which the hose rests, and a pressure transmitting plate moving in response to an expansion of the hose. These three elements are held in an operative position relative to one another by a modular frame section which also holds a guide member and a reset element for restoring the hose section to a starting position when no pressure is applied inside the hose. A piston rod extends through the guide member and is operatively connected to the pressure transmitting plate. The modular frame section, the guide member and preferably also the reset element form a modular unit. A plurality of such modular units may be arranged along an elongated hose section, whereby a respectively elongated reaction member and a correspondingly elongated pressure transmitting plate are provided in common for the plurality of modular units. A modular frame section or sections may also be used to hold adjustable stroke limiting elements.
摘要:
This invention is aimed at the cutting of various materials, especially fabrics and leathers, according to block patterns. By the simple use of cutting edges of steel band reinforced with structural frame, materials placed on the base board of a hydraulic press can be cut along a required profile by lowering the platen of the hydraulic press to a determined level in the exact position desired. Then, with the final dropping of a hammer head onto the top platen of the hydraulic press, complete cutting is achieved with high precision and a savings of labour.
摘要:
Die cutting of textiles, plastic foil, plastic fabric, paper and similar materials occurs by means of assembly of cutting dies having cutting edges corresponding to parts to be cut with a bridge diecutting machine including an upper pressure plate movable vertically up and down and including table frames having tabletops that form supporting surfaces for a pad for the material. Part of the supporting surfaces nearest to the diecutting machine has a resilient support and is pressed downwardly by the upper pressure plate of the diecutting machine during the downward stroke of the upper pressure plate. There is a step of placing the cutting die corresponding to the parts separately with their cutting edges facing downwards on the material according to a visually determined arrangement, having regard to the pattern of the material and the degree of the utilization of the material. With respect to that part of the pad which during the operation is outside the active scope of the diecutting machine, together with material and the cutting dies, there is a step of following the pressure plate in the movement of the latter so that the cutting dies within the scope of the pressure plate always lie approximately horizontally.
摘要:
In a paper cutting machine for cutting a plurality of sheets of paper stacked one upon another on a table, including a paper support (2) moving down from above along longitudinal beams (19, 19) and a cutter (3) moving up from below in an oblique direction, the paper support (2) having a rest (18) for receiving a cutting edge of the cutter, a function of moving the rest (18) in a predetermined pitch whenever the number of strokes of the cutter (3) reaches a predetermined number of times is provided. Accordingly, even when the cutting edge of the cutter cuts into the rest and gets deteriorated, the cutter need not be exchanged immediately, life of the rest can be elongated and the number of sheets cut till exchange can be drastically improved.