6results about How to "Avoid burrs" patented technology

The present disclosure relates to the technical field of metallurgy, and particularly relates to a coal injection gun adjustable conversion joint device, a coal injection gun and a coal injection device. The present disclosure provides a coal injection gun adjustable conversion joint device, which comprises a conversion joint body and an angle adjusting mechanism. The conversion joint body has a first connecting end and a second connecting end. The first connecting end is used for connecting a coal injection gun section door of a coal injection gun. The second connecting end is used for connecting a barrel of the coal injection gun. The angle adjusting mechanism comprises an adjusting sleeve and a plurality of force applying columns. The plurality of force applying columns are arranged at intervals along the circumference of the conversion joint body. The adjusting sleeve is detachably connected to one or more of the plurality of force applying columns, and the adjusting sleeve is used for increasing the torsion of the force applying columns. By implementing the technical solution of the present disclosure, burrs, scratches and folds of the barrel during angle adjustment are avoided, which is beneficial to the sealing and advancing and retreating operation of the coal injection gun.

The present invention relates to an electro-discharge machining device, which comprises at least a carrier and an electro-discharge machining unit. The carrier is used to carry at least one workpiece to be machined. The electro-discharge machining unit comprises an electrode, a jig and a power supply unit. When the electro-discharge machining unit performs an electro-discharge machining process on a machining target area of the workpiece to be machined along a machining travel direction, a discharge section of the electrode moves relative to the machining target area of the workpiece to be machined. The present invention can improve the machining process, save the overall machining time and save the time required for replacing the electrode.

The application discloses a cutting type eyeletting method and device, and relates to the technical field of eyeletting processing. In order to solve the problem that the existing eyeletting machine cannot provide stable solid support for the fabric to be processed during the eyeletting process, resulting in fabric subsidence and yarn pulling, yarn extraction and burr, the method comprises the following steps: placing the fabric to be processed in the eyeletting area of the needle plate of the eyeletting machine; supporting the fabric to be processed by using the support body arranged in the eyeletting area; controlling the cutter to move downward along the direction perpendicular to the plane of the fabric to be processed, the cutter has a cutting edge, and the cutting edge is used for forming a shearing surface parallel to the supporting surface of the support body; controlling the cutter to continue to move downward to a preset termination position, so that the fabric to be processed located between the cutter and the support body is subjected to the supporting action provided by the support body and the vertical shearing action provided by the cutter at the same time, and the eyeletting incision of the fabric to be processed is formed by cutting; in this way, the burr, yarn extraction and yarn pulling phenomenon of the incision can be effectively reduced.

The utility model relates to the technical field of processing of superfine fiber printing Yangbuck leather, in particular to a printing device of superfine fiber printing Yangbuck leather, which comprises a machine body, an ink-jet printing head is slidably mounted on the machine body, two driving mechanisms are symmetrically fixed on the machine body, a support is fixed on the driving mechanisms, and the ink-jet printing head is arranged on the support. A limiting mechanism is installed on the support and comprises supporting rods and a hydraulic rod, the two supporting rods are fixedly connected to the support, the hydraulic rod is fixedly installed at the top ends of the supporting rods, a pressing plate is fixedly connected to the telescopic end of the hydraulic rod, a rubber pad is installed on the pressing plate in a clamped mode, and a long rod is fixedly connected to the support. The long rod is rotationally connected with a pressing wheel; the support slides to drive the pressing wheel to move on the Yangbuck, the Yangbuck can be flattened through the pressing wheel, when the hydraulic rod is started, the pressing plate drives the rubber pad to abut against the edge of the Yangbuck, then the Yangbuck can be fixed when the ink-jet printing head conducts printing on the Yangbuck, and therefore the printing effect is better.

The positioning tool comprises a mounting plate, the top of the mounting plate is fixedly connected with a containing plate, the front face and the back face of the containing plate are both fixedly connected with supporting plates, and the tops of the supporting plates are fixedly connected with electric push rods. The output end of the electric push rod penetrates through the bottom of the supporting plate and is fixedly connected with a connecting block, the right side of the inner wall of the connecting block is slidably connected with a clamping block, and a cutter is fixedly connected into the clamping block. According to the positioning tool for film cutting, the electric push rod pushes the connecting block and the pressing plate to press and position a film on the top of the containing plate, then the heating assembly and the moving assembly drive the cutter to cut the film, then the adsorption mechanism treats waste gas, and the positioning tool for film cutting has the advantage of positioning and is high in practicability. The stability of the positioning tool is improved, meanwhile, deviation is avoided when the film is cut, and the situation that the quality of the film is affected due to the fact that burrs appear at the cut position of the film is prevented.

The utility model relates to the technical field of cutting devices, in particular to an insulating packaging film cutting device which is characterized in that an adsorption bottom plate is matched with a negative pressure hole to adsorb and fix an insulating packaging film, so that the film material is effectively prevented from shifting or wrinkling in the cutting process, and the cutting precision is improved; the laser cutting head with the double-station design is adopted, synchronous and accurate positioning is achieved in cooperation with the positioning sensor in the middle, two cutting operations can be conducted at the same time or alternately, and the machining efficiency is remarkably improved. Meanwhile, high-precision and non-contact cutting is achieved by combining an X-axis driving module and a Y-axis driving module, and the problems of burrs and deformation caused by traditional mechanical cutting are solved; the static electricity removing assembly can eliminate static electricity adsorption on the surface of the membrane material, and the conveying and cutting stability is further guaranteed; the unwinding roller and the winding roller are provided with the magnetic powder clutches, tension can be accurately controlled, and it is ensured that the film materials are stably conveyed at a constant speed. And the cutting efficiency and quality of the insulating packaging film are remarkably improved, and the requirements for high-precision and high-efficiency industrial production are met.