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4689results about "Perforating tools" patented technology

Process of forming bend-controlling structures in a sheet of material, the resulting sheet and die sets therefor

A process of forming bend-controlling structures, such as slits, grooves or displacements (22), in a sheet of material (21, 121, 221, 321, 421, 521, 621,721). The bend-controlling structures (22) have central portions (26) extending substantially parallel to a desired bend line (23) on the sheet and end portions (27) which diverge away from the bend line (23). In one embodiment the process includes the step of forming the bending straps (24) between pairs of slit end portions (27) at a desired spaced apart distances along the bend line (23) with the straps (24) having a desired configuration, and the step of forming central portions (26) which connect the end portions (27) to complete the slits (22) using a separate die set. A plurality of end portion dies (51/54) can be used to produce end portions (27) of various shapes and straps (24) of various widths, and a single set of central portion forming dies (71/74) are used to connect the end portions (27). In other embodiments die sets producing a single end portion (27) or mirror image impressions (A,B) are used and preferably overlapped to produce the complete bend-controlling structure (22). A modular die assembly (500) also is disclosed in which the bend-controlling structures can be produced by modular die inserts (511-514, 611-614). Finally, a selection of die sets (722a, 722b, 722c) of differing length from a group of die sets can be made to position the bending straps (24) at desired locations along the bend line.
Owner:IND ORIGAMI INC CA US

Punching device for electric wire threading slot punching

The invention discloses a punching device for electric wire threading slot punching. The punching device for electric wire threading slot punching comprises a rack, wherein an oil cylinder connecting bottom plate is fixedly arranged on the bedplate of the rack, a connecting strut is fixedly arranged on the top surface of the oil cylinder connecting bottom plate, an upper connecting plate is fixedly arranged at the upper end of the connecting strut, and a punching oil cylinder is fixedly arranged on the upper connecting plate; waste box adjusting motors are respectively fixedly arranged and vertical adjusting screws are hinged on the two sides plates of the rack, a waste box supporting plate is in threaded connection in the two vertical adjusting screws, the waste box supporting plate is provided with a stepped through hole, a waste box is inserted into the stepped through hole, the outer wall of the top portion of the waste box is provided with a radially extending supporting edge, and the radially extending supporting edge is inserted into the insertion section of the upper portion of the stepped through hole. The punching device for electric wire threading slot punching has the advantages that a wire threading slot plate can be automatically punched, the upward and downward adjustment of the waste box can be realized through the waste box adjusting motors, the waste can be collected in a unified manner and automatically falls down to the ground, and the waste box does not need to be manually lifted for discharging.
Owner:JIYUAN POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER

Process of forming bend-controlling structures in a sheet of material, the resulting sheet and die sets therefor

A process of forming bend-controlling structures, such as slits, grooves or displacements (22), in a sheet of material (21, 121, 221, 321, 421, 521, 621, 721). The bend-controlling structures (22) have central portions (26) extending substantially parallel to a desired bend line (23) on the sheet and end portions (27) which diverge away from the bend line (23). In one embodiment the process includes the step of forming the bending straps (24) between pairs of slit end portions (27) at a desired spaced apart distances along the bend line (23) with the straps (24) having a desired configuration, and the step of forming central portions (26) which connect the end portions (27) to complete the slits (22) using a separate die set. A plurality of end portion dies (51 / 54) can be used to produce end portions (27) of various shapes and straps (24) of various widths, and a single set of central portion forming dies (71 / 74) are used to connect the end portions (27). In other embodiments die sets producing a single end portion (27) or mirror image impressions (A,B) are used and preferably overlapped to produce the complete bend-controlling structure (22). A modular die assembly (500) also is disclosed in which the bend-controlling structures can be produced by modular die inserts (511-514, 611-614). Finally, a selection of die sets (722a, 722b, 722c) of differing length from a group of die sets can be made to position the bending straps (24) at desired locations along the bend line.
Owner:IND ORIGAMI INC CA US

Ring forge piece punching and cutting composite type mould

The invention relates to a ring forge piece punching and cutting composite type mould which is used on a mechanical press, in particular to the ring forge piece punching and cutting composite type mould. In the conventional mechanical manufacturing industry, inner hole punching and outer edge cutting in a forging and forming process of a forging ring of a transmission chain are performed in two steps, the production efficiency is low and the cost is high. The mould consists of an upper mould, an ejector, a lower mould and a material returning and outer burr removing part, wherein an upper mould plate is provided with a guide sleeve, connecting rods and an edge cutting punch head; a lower mould plate is provided with guide posts, an edge cutting female die seat, an edge cutting female die, a punching punch head seat and a punching punch head; a movable plate is provided with a connecting sleeve, an ejector seat and an ejector head and positioned and guided by two guide posts and the guide sleeve; and four connecting rods drive the connecting sleeve, the movable plate and the ejector part to rise so as to eject a finished punched workpiece. The composite mould is matched with a guide post guide sleeve structure, so accurate positioning of the upper mould, the lower mould and the ejector part is realized, the dimensional accuracy of a product is guaranteed, and the mould is suitable for simultaneous edge cutting and punching of a ring forge piece.
Owner:CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY

Multi-direction step-by-step tridimensional punching method of IML products and punching mould thereof

The invention relates to a multi-direction step-by-step tridimensional punching method of IML products and a punching mould thereof, which is characterized in that a punching mould combing a direct punching mould and a lateral punching mould is adopted to dimensionally punch the cavern shapes and edge contours of IML product located on different surfaces step by step; the punching mould comprises an upper mould which comprises a punch (straight punching head) and a lower mould which comprises a die and air cylinder side cut assemblies; the punch of the upper mould and the die of the lower mould form a straight punching mode; the side wall of the die and four groups of air cylinder side cut assemblies of the lower mould form a side punching mode; a multidirectional step-by-step dimensional method is adopted to decompose the punching of the IML product with complex structure and shape into one-step punching with simpler shape, the power of one-step punching of side faces is provided by a straight air cylinder, thereby ensuring the quality and stability of quenching; in addition, the punching method has simple operation and accurate production orientation, the qualification rate can be above 90%, therefore, the method is applicable to large-scale batch production.
Owner:TIANJIN ZHONGHUAN HI TECH

U shaped beam three-face punching technique and production device using the technique

The invention discloses a three-side-punch process of a U-shaped beam and a production device used in the process. The process comprises the following steps: the U-shaped beams are placed on a feeding platform, a feed picking device is adopted to successively pick up the spare U-shaped beams and hoist the beams to a support roller of the feeding end; a first feeding clamping device is adopted to clamp the U-shaped webs and feed the webs to working platforms of a ventral small punching machine which can move along the X / Y axis and a ventral large punching machine which can move along the Y axis; the ventral small punching machine which can move along the X / Y axis and the ventral large punching machine which can move along the Y axis punch the beams; a second feeding clamping device clamps the U-shaped beams and continuously feed the beams to the working platform of a left wing punching machine and a right wing punching machine; the left wing punching machine and the right wing punching machine punch the beams; the U-shaped beams are hoisted to a discharging platform after being fully punched. The invention has the advantages of simple process, high production efficiency, low cost and reasonable process arrangement; and the produced U-shaped beams have precise punching location.
Owner:JINAN CASTING FORGING MACHINERY INST

Multiple Punch and Die Assembly

A multiple punch and die assembly adapted to be placed in a punch press having a punch ram for imparting movement to a selected punch assembly for carrying out a punching or forming operation comprises a punch assembly for holding a plurality of selectively operable punches mounted for independent movement in the punch assembly so as to selectively engage a workpiece. The punch assembly has a punch carrier for reciprocal motion within a punch guide and a striker body engaging the punch carrier, said striker body being selectively, toollessly connectable to the punch carrier by a pair of tabs located on a lower circumference of the striker body, said pair of tabs located on a lower circumference of the striker body with a radial separation other than 180 degrees. A circumferential lip in the punch carrier receives the pair of tabs and has corresponding radially separated reliefs for allowing the pair of tabs to pass the circumferential lip, the engagement of the pair of tabs by the circumferential lip thereby locking the striker body to the punch carrier while permitting relative rotation of the striker body and punch carrier to select a punch for engagement by the striker. A detent means releasably positions the striker body in one of a plurality of operating positions, at which a punch is positioned for being struck selectively by the ram via the striker body such that one punch is driven to an operating position when at least one other punch is in inactive. In another embodiment the assembly has a stripper retainer that has precision pockets for holding strippers corresponding to the selectively operable punches.
Owner:MATE PRECISION TECH INC

Punch device with adjustment subassembly as retrofit insert or as original equipment

A punch assembly for a punch press has a punch housing with a punch that is slideably mounted for reciprocation along punch axis within the punch housing and at least one resilient member in the housing for yieldably biasing the punch upwardly in the housing along the punch axis. A punch length adjustment subassembly is provided in the punch housing. The subassembly has a base member that is slideable axially but non-rotatably mounted within the housing and a punch head member having an upper end that is positioned to be struck by a punch ram of a punch press for driving the punch downwardly to an operating position. The punch head is mounted for rotation on the punch axis relative to the base member but is held against axial movement relative to the base member. The punch head is operatively associated by a threaded length adjustment connection to the punch and a releasable stop member is connected between the punch head and the base member for preventing rotation of the punch head relative to the base member while the punch assembly is in operation on the punch press. The invention is also directed to the punch head subassembly per se as a retrofit insert to update existing punch assemblies for manual tooless punch length adjustment and tooless punch removal.
Owner:MATE PRECISION TOOLING
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