45results about How to "Reduce production scrap rate" patented technology

The invention discloses a process for protecting a goldfinger and a bonding pad in a rigid-flex printed circuit board. The process comprises the following steps of S1, respectively carrying out board cutting; S2, carrying out a front procedure; S3, coating the surface of a flexible board with a cover film and carrying out first rapid lamination; S4, coating the goldfinger and the bonding pad of the flexible board with a high-temperature resistant adhesive tape, and carrying out second rapid lamination; S5, carrying out brownification on a copper surface of the flexible board, carrying out lamination on the flexible board, a prepreg and a rigid board, and milling an appearance; S6, removing the high-temperature resistant adhesive tape, and carrying out nickel and gold deposition treatment on a goldfinger region and a bonding pad region which are exposed; and S7, carrying out a post procedure. By coating the high-temperature resistant adhesive tape, the problem that glue residue is remained on the prepreg on the goldfinger region and the bonding region, or the goldfinger and the bonding pad are polluted by other impurities during the lamination process and are difficult to clean is solved, normal surface treatment can be carried out on the goldfinger and the bonding pad after the high-temperature resistant adhesive tape is removed, no glue residue is remained, the production rejection rate is reduced, the product quality is improved, and the production cost is saved.

The invention discloses a lamination-vacuum pressure pouring technology of a microminiature conducting slip ring, which comprises the processing technology of a conducting ring, the processing technology of a brush holder and the general assembly technology of the microminiature conducting slip ring; after the conducting ring body and the brush component are inspected, the bought-in component inspection is carried out on the bought-in components such as a combination support, a flange, a dust shield, and the like; and then the conducting ring body, the brush holder component and the bought-in components are assembled into the microminiature conducting slip ring, and then tested and inspected; and after passing the inspections, the conducting ring body, the brush holder component and the bought-in components are packed and delivered. The lamination-vacuum pressure pouring technology of the microminiature conducting slip ring is characterized in that: after the conducting ring is manufactured and an insulating strip is processed, the conducting ring and the insulating strip are firstly laminated for assembly, epoxy resin is poured at the vacuum pressure, and then fine machining is performed on the conducting ring body. The lamination-vacuum pressure pouring technology of the microminiature conducting slip ring has the advantages that the two conducting rings are both mutually insulated and reliably connected, and rubber layers thereof can not fall off, the environmental suitability and operational reliability of the products are improved, the rate of defective products is low, and the performance of the product can correspond to that of the similar products abroad.

The invention belongs to the technical field of fuel cells, and discloses a method for manufacturing a fuel cell membrane electrode. The method comprises the following steps: coating the A side of a proton exchange membrane with a first electrode layer, compounding A side of a proton exchange membrane with a first protection membrane, coating the B side of the proton exchange membrane with a second electrode layer, performing viscosity reduction treatment on the first protection membrane, and stripping the first protection membrane to obtain the membrane electrode, wherein the first electrodelayer applied to the A side is protected with the first protection membrane to avoid damages of coating of the second electrode layer to the first electrode layer, the size of the first electrode layer is detected during the coating of the second electrode layer, and the second electrode layer is applied according to the size of the first electrode layer to make the first electrode layer and the second electrode layer aligned in size in order to reduce the production scrap rate. The invention also discloses a manufacturing device. T whole process is completed by using the automatic device without using transferring printing, so the production efficiency is improved.

The invention discloses a cover plate type fiber bragg grating sensor and a packaging method thereof. The cover plate type fiber bragg grating sensor comprises a grating and a protection sleeve, wherein a wire jumper and tensile fibers are fixed in the protection sleeve. One end of the protection sleeve is fixedly connected with a flange interface, and the other end of the protection sleeve is fixedly connected with a temperature sensing box. The grating is packaged in the temperature sensing box, the wire jumper and the grating are connected with each other in the temperature sensing box. The packaging method of the cover plate type fiber bragg grating sensor includes preparing the sleeve, painting temperature-resistant AB glue, welding the wire jumper and the grating in fusion mode, leading the wire jumper to penetrate through the protection sleeve, fixing one end of the wire jumper not provided with the grating with the flange interface, arranging the grating at the central position of a sensing protection groove, and buckling a packaging cover plate on the sensing protection groove. Compared with the prior art, the cover plate type fiber bragg grating sensor is good in mechanical performance, sensor performance, insulation performance and firmness, and improves sensor firmness, data collection accuracy and data collection speed. The packaging method of the cover plate type fiber bragg grating sensor greatly improves production efficiency and production survival rate, simultaneously improves sensor firmness and enables the sensor not to split or fall easily.

The invention is suitable for the technical field of pipe fitting welding, and provides a pipe fitting welding stable butt joint device which comprises a device base and further comprises a moving mechanism, the moving mechanism comprises a first moving assembly and a second moving assembly, the first moving assembly is connected with a clamping mechanism, and the second moving assembly is connected with a lifting rotating mechanism; the lifting and rotating mechanism is fixedly connected with the centering mechanism; and the centering mechanism comprises a centering seat, a power piece, a second transmission module, a first rotating piece, a driving seat, a first threaded shaft, a centering assembly, an abutting piece and a limiting seat. According to the stable butt joint device for pipe fitting welding, through the moving mechanism, the lifting rotating mechanism, the clamping mechanism and the centering mechanism, centering butt joint of two sets of pipe fittings can be achieved, the central axes of the two sets of pipe fittings coincide, the perpendicularity of the pipe fittings after welding is guaranteed, the welding quality and efficiency of the pipe fittings are improved, and the production rejection rate of the pipe fittings is reduced; and the production economic cost is saved.

The invention discloses a method for reducing overflow in injection molding of an IPM (Intelligent Power Module) and a DBC substrate. The method changes an island design on the DBC substrate and enables the DBC substrate to be balanced in stress in the injection molding process. In addition, a wedge-shaped table structure is designed on a DBC back copper layer at the back of the DBC substrate, a buffer table for the flow rate of an injection molding material at the back of the DBC substrate is formed, and the injection molding material overflowed towards the back of the DBC substrate is reduced under a condition that the DBC substrate is uneven. According to the invention, the method of reducing the overflow through changing the DBC design idea is adopted to replace a laser burr removing process, the production efficiency is improved, and the production cost and technological input are reduced.

The invention provides a local extrusion method used for high-pressure casting. The method comprises the steps that a local extrusion device used for high-pressure casting is used for extruding the surface of a casting. The device is composed of an extrusion core sleeve (03), an extrusion rod (04), an extrusion oil cylinder (05) and an extrusion oil cylinder piston (06) and is characterized in that the extrusion oil cylinder (05) internally comprises the extrusion oil cylinder piston (06), the extrusion oil cylinder piston (06) is connected with the extrusion rod (04), the extrusion rod (04) is located in the extrusion core sleeve (03), and the extrusion core sleeve (03) and the extrusion oil cylinder (05) are fixed; the extrusion oil cylinder piston (06) is driven to drive the extrusion rod (04) to complete extrusion. The method has the beneficial effects that the extrusion stroke of the local extrusion process can be effectively ensured, meanwhile, the shrinkage defect of the large and thick portion of products is reduced, the production rejection rate is reduced, and the enterprise economic benefits are obviously improved.

The invention provides a mechanical mechanism for delayed release of an upper die core of a drawing die. The mechanical mechanism comprises delay units (3). The delay units (3) comprise supporting rollers capable of horizontally reciprocating and rotary supporting blocks abutting against the supporting rollers. Supporting boxes are distributed on a lower die holder (4) at equal intervals, the supporting rollers (32) are arranged in the supporting boxes, the rotary supporting blocks (31) are hinged to the peripheral side of a blank holder (2), the peripheral side of the upper die core (1) extends downwards to form protruding blocks (11), and when the die is closed, the lower surfaces of the protruding blocks (11) abut against the upper surfaces of the rotary supporting blocks (31). According to the mechanical mechanism for delayed release of the upper die core of the drawing die, the mode that the rotary supporting blocks and the protruding blocks are matched with each other is adopted, it is guaranteed that the upper die core cannot be released immediately after die opening, the effect of delayed release is achieved, the machining quality of parts is guaranteed, waste products are avoided, and good economical efficiency is achieved.

The invention relates to a device for holding objects, preferably a telephone, in particular for use in a centre arm rest and/or the centre console of a vehicle, with a frame or receptacle and a reversibly closable lid which is mounted so that it may be swivelled in each case about one of the rotary axes arranged in the region of the upper closing edges of the side walls of the frame or container and lying essentially parallel to the closing edges. The lid has an opening and closing mechanism which is arranged in a function carrier frame that may be connected to the lid. In addition, the invention relates to a method for the production of a device for holding objects, in particular for use in a centre arm rest and/or the centre console of a vehicle.

The invention provides a pouring device for a high-pressure casting product. The pouring device comprises a material cake (01), a cross gate (02), an inner sprue (03) and slag accumulating ladles (04). The pouring device is characterized in that the inner sprue (03) is in lap joint with the surfaces of cast parts (05) and is arranged with the shape changed along the surfaces of the cast parts (05); the cross gate (02) comprises the input end connected to the material cake (01) and the two output ends connected with the inner sprue (03) correspondingly; and the cross sectional area, in the direction of the inner sprue (03), of the cross gate (02) is decreased step by step. The pouring device used for an aluminum alloy pressure casting mold has the advantages that washing of liquid aluminum to a mold core is avoided in the mold filling process, and pulling damage defects of products and the mold are reduced; meanwhile, the flowing smoothness of the liquid aluminum in a cavity is guaranteed, the exhausting performance of the cavity is good, and pore defects of the cast parts are remarkably reduced; and the pouring gate and exhausting structural design is reasonable, the quality of the products and the mold is guaranteed, and the production effects are improved.

The invention relates to a printing machine automatic adjusting system based on a UVW platform and machine vision, the printing machine automatic adjusting system comprises an automatic alignment platform, and a printing head and a vision monitoring device which are connected with the automatic alignment platform, the printing head is embedded in the upper end face of the automatic alignment platform, and the vision monitoring device is connected with the outer side face of the automatic alignment platform through an adjusting mechanism. The using method comprises the two steps of equipment assembling and machining operation. On one hand, various automatic alignment platforms on the market can be effectively operated in a matched mode according to use requirements; and on the other hand, human eye judgment can be replaced by industrial camera photographing, and the current data volume needing to be translated and rotated is accurately calculated, so that the working precision of machining operation is greatly improved, meanwhile, the difficulty of equipment production learning and operation is effectively reduced, and the production rejection rate is reduced.

The invention relates to the technical field of electrical connectors, and provides an electrical connector. The electrical connector comprises a conductive sleeve, an encapsulating outer casing and amaterial blocking ring. The conductive sleeve comprises an insertion portion and a wiring portion, one end of the insertion portion is provided with an insertion hole, and the other end of the insertion portion is electrically connected with the wiring portion; the encapsulating outer casing comprises a housing main body and an anti-off snap ring, one side of the housing main body is provided with an insertion holding hole, the other side thereof is provided with a wiring holding hole, and the anti-off snap ring is formed by extending inwards from the port edge of the hole port of the insertion holding hole. The electrical connector further comprises a material blocking ring arranged in the insertion holding hole and located between the anti-off snap ring and the insertion portion, wherein the inner ring diameter of the material blocking ring is smaller than the hole diameter of the insertion hole. The electrical connector is provided with the material blocking ring at the insertion hole of the conductive sleeve to block an insulation material from being incident to a matching portion of the conductive sleeve in the late process for forming the encapsulating outer casing so as toguarantee the assembling and electrical connection conduction of the conductive sleeve and a plug pin in the late phase without the influence of the insulation material.

The invention discloses automatic packaging equipment for integrated packaging products, and belongs to the field of packaging product production.The automatic packaging equipment comprises a workbench, a gluing assembly arranged on one side of the workbench, a pressing assembly arranged in the middle of the workbench and a feeding assembly arranged on the edge side of the upper portion of the workbench, the gluing assembly is used for gluing paperboards, and the pressing assembly is used for pressing the paperboards; a paperboard is placed under the gluing assembly, the feeding assembly conveys the paperboard subjected to foaming and gluing to the pressing assembly to be pressed and formed, a conveyor is fixedly arranged at the bottom of the workbench, and the gluing assembly comprises a gluing machine fixedly installed above the workbench and a gluing gun connected to the glue outlet end of the gluing machine through a glue outlet pipe. By means of automatic and assembly line type production, the problems that in manual production operation, the production efficiency of packaging products is low, and manpower is consumed are solved, the problem that due to misoperation caused by manual operation, the product quality is affected is solved, and through pressing of the forming opening, paperboards and foam are firmly bonded in the packaging product production process.

The invention relates to a mechanical device and a working method thereof, in particular to an automatic toothbrush handle water gap shear-off device and a working method thereof.The toothbrush shear mechanical arm is provided with a sheath, can automatically place toothbrush handles on a conveying belt and can automatically correct the positions of the toothbrush handles.An obliquely-placed partition plate is arranged at the front end of the conveying belt, and a grabbing mechanical arm is arranged above the conveying belt.A horizontal mechanical arm is arranged at the lower end of the conveying belt.A horizontal adjusting device is arranged on the horizontal conveying belt.The grabbing mechanical arm, the horizontal mechanical arm, the horizontal adjusting device and a pneumatic shear are connected with an intelligent control module.The conveying belt comprises a driving roller and a driven roller.The driving roller and the driven roller are separately arranged at the two ends of the conveying belt.The conveying belt is supported by a support.The support is provided with a conveying belt speed controller and a conveying belt drive motor.Intelligent mode control is adopted, intelligence is achieved in the whole course, labor is saved, and production cost is reduced.