132results about How to "Meet the length requirement" patented technology

The invention belongs to the field of composite material production and preparation, and relates to a fiber reinforced thermoplastic resin unidirectional prepreg tape and a preparation method thereof. The prepreg tape is prepared from the following components, by weight: 30-70 parts of a thermoplastic resin, 30-70 parts of nature fibers, 0-1 part of a coupling agent, and 0-1 part of an emulsion. Compared with the prepreg tape in the prior art, the prepared nature fiber/thermoplastic resin unidirectional prepreg tape of the present invention has the following advantages and beneficial effects that: mechanical strength is high, the prepreg tape can be stored for a long time, the nature fibers are completely impregnated by the resin and are not exposed to the outside so as to maintain the dry state of the material, particularly the nature fibers, the nature fibers are not easily subjected to mildew deterioration, and the porosity is low so as to ensure performance stability of the product. With the method, the width of the reinforcing material and the nature fibers can be limited so as not to cause nature fiber deviation phenomenon during the subsequent production process.

The present invention relates to production equipment and method for steel pipe with composite inorganic material coating. The production equipment includes mainly one sand blasting section comprising deduster, sand blaster, sand blasting pipeline, belt conveyer, bucket type lifter, sand bin, etc.; and one enamel baking section comprising drawing bogie, medium frequency heating furnace, medium frequency machine, rack, glaze feeder, etc. It features the sand blasting process while turning the steel pipe, and the simultaneous heating, glaze spraying and enamel baking process. The present invention has simple technological process and low production cost, and the produced ultra long steel pipe has high wear resistance, high corrosion resistance and long service life.

The invention relates to a biodegradable composite prepreg cloth, and a preparation method and a device for the same. The composite prepreg cloth comprises a modified polylactic acid (PLA) resin accounting for 40-70 wt% of the composite prepreg and natural fiber. The preparation method comprises the following steps: conducting a continuous drying treatment on natural fiber; immersing the fiber with molten modified PLA; coating the modified PLA on the surface of the natural fiber; and rolling, cooling and winding to obtain the prepreg cloth. The device comprises an untwisting machine, an arrangement warping device, a direction control device, a friction roll, a tenslator, a film extruder, a gum dipping cooling device, and a winding device. Compared with the prior art, the invention has the advantages of large fiber draw ratio, obvious PLA enhancement effect, small wear of the extruder screw, simple process, energy saving and environment-friendliness.

The invention discloses a completely degradable high shock resistance composite which comprises the following components in parts by weight: 20-80 parts of natural fiber and 20-80 parts of poly(butyleneadipate-co-terephthalate) (PBAT) fiber. The invention further discloses a preparation method and an application of the completely degradable high shock resistance composite. The composite adopts the PBAT fiber as a base material, so that the composite has very excellent shock resistance and is not easy to break. In addition, a reinforcing phase and a base body of the composite are degradable materials, so that the composite is less harmful to an environment, cannot result in white pollution, and meets a requirement of sustainable development.

The invention relates to a natural fiber composite board and a manufacturing method and application thereof. The natural fiber composite board is prepared from the following raw materials by weight: 35 to 60% of a thermoplastic resin, 30 to 55% of a natural fiber, 0 to 9% of maleic anhydride graft and 0 to 1% of a coupling agent. The procedures consisting of mixing, washing and starching, weaving, desizing and hot pressing are carried out so as to form a natural fiber reinforced thermoplastic resin board which is used for manufacturing of a mobile phone protective shell, an IPAD shell, a musical instrument, a box or a helmet. Compared with the prior art, the natural fiber composite board provided by the invention has the advantages of great strength, stable performance, effectively controllable thickness direction, etc.

The invention relates to a continuous feed and cutoff device of fibers. The continuous feed and cutoff device mainly comprises a roll type continuous feed mechanism, a rotary cutoff mechanism and a mechanical continuously variable transmission mechanism. When the device runs, fiber lines pass through a feeding nozzle, penetrate through a gap between a fixed roll and an adjusting roll and enter the rotary cutoff mechanism. A transmission wheel is driven to rotate through drive rotation of external power, and rotary shafts are driven by the transmission wheel to achieve continuous feed and rotary cutoff on the fiber lines. Meanwhile, the reference diameter of transmission belts between left transmission wheel sheets and right transmission wheel sheets is changed by loosening locking nuts and adjusting hand wheels, continuously variable transmission is achieved, and then the feed speed and cutoff length of the fibers are adjusted. According to the device, a single fiber line can be introduced, multiple fiber lines can be introduced, continuous and even feed and cutoff are achieved, work efficiency is greatly improved, the adjustment range of different fiber lengths and different adding quantities is wide through the continuously variable transmission mechanism, and needs of different products are met.

The invention discloses a flap traction device used for full-ectomy of the mammary glands. The flap traction device comprises a handle and a plurality of traction units arranged on the handle, whereineach traction unit comprises a slider and a drag hook, each slider can axially move along the handle, each drag hook is arranged on the corresponding slider in a hinging mode, during the surgery process, since the plurality of drag hooks are arranged, the number of position points for lifting the free flaps is increased, one assistant can simultaneously complete the lifting for the flaps on a plurality of position points by two hands by utilizing two flap traction devices, therefore, human resources and space resources are greatly saved, the operation of surgery doctors is facilitated, with the traction device provided by the invention, the defects of the slippage and the unsatisfactory exposure of the surgery field caused by lifting of fingers are also overcome, and thus the continuity and safety of the surgery are guaranteed. In addition, the positions of the drag hooks are adjusted along with the movement of the sliders, the drag hooks are hinged to the sliders, the positions of the drag hooks are adjusted or the direction of the drag hooks is stirred, so that the distances among the lifting points are enlarged or shortened, and thus the use is convenient and flexible.

The invention relates to the technical field of food processing, in particular to an automatic vegetable cutting device for greenhouse vegetable processing. The automatic vegetable cutting device comprises a base, a conveyor, a vegetable cutting mechanism, a feeding mechanism and a controller, wherein the feeding mechanism comprises a first air cylinder, a sliding frame and a clamping assembly; the vegetable cutting mechanism comprises a worktable, a protective cover, a pushing assembly, a pressing assembly and a cutting assembly; and the controller is electrically connected with the clamping assembly, the pressing assembly and the cutting assembly. The automatic vegetable cutting device is simple in structure, high in yield, capable of increasing income and capable of accurately controlling the cutting length of vegetables; and the processing length requirements for different vegetable are met, and the automatic vegetable cutting device is beneficial for storage and quality guarantee of the greenhouse vegetables after processing.

The invention relates to a method for cutting off the heads and the tails for a squarer. The method includes the steps that firstly, crystal bricks are clamped; secondly, a line net is designed; and thirdly, after the crystal bricks are cut, finished crystal bricks are obtained. Special clamps for the crystal bricks are manufactured and the line net is designed on the squarer, so that the inclination distance of the end face of each finished crystal brick is reduced to 0.5 mm from 1.2 mm, the edge breaking length is controlled below 0.5 mm per ingot, and the squarer can be used for squaring crystal ingots, cutting off waste layers and removing the heads and the tails. By the adoption of the method, production cost is reduced, accuracy is improved, and the product use rate is increased.

The invention provides an endoscope electrode system for an electromagnetic knife surgery. The system comprises control equipment, an endoscope electrode and a corresponding cable, wherein the endoscope electrode is connected with the control equipment through the cable; the control equipment is used for controlling the output of electromagnetic signals required by the surgery; the output impedance of a built-in circuit in the control equipment is matched with the input impedance of the cable, and is smaller than the characteristic impedance of the cable; the characteristic impedance of an endoscope electrode cable is greater than the characteristic impedance of the cable; a metal electrode connected with a core wire of the cable is used as a positive electrode; and a metal conductor shielding layer connected with a shielded wire of the cable is used as a negative electrode. The endoscope electrode system for the electromagnetic knife surgery has the advantages that the energy output efficiency of the endoscope electrode system can be improved, so that the focusing performance of the output energy of the endoscope electrode is good; and the surgery safety is improved.

The embodiment of the invention discloses a main amplitude mast of a crawler crane and belongs to the technical field of the crawler crane. The main amplitude mast of the crawler crane is arranged on a crawler crane platform. The main amplitude mast consists of an upper part module (1) and a lower part module (2). The upper part module (1) and the lower part module are connected together through a joint (3). The invention also discloses the crane. The crane comprises the main amplitude mast provided by the invention. According to the main amplitude mast of the crawler crane, through dividing the main amplitude mast into the two modules connected through the joint, not only be the length requirement of transportation met but also the optimal design requirement of the main amplitude mast can be met.

The invention discloses and relates to a mesh enclosure of an electric razor. The mesh enclosure comprises a knife net and a hollow base. The knife net comprises an inner knife net body and an outer knife net body. Groove holes are formed in the inner knife net body, and the outer knife net body is arranged around the periphery of the inner knife net body. The outer edge of the inner knife net body and the inner edge of the outer knife net body are connected into a whole, and connecting sheets are arranged between the outer knife net body and the base. Saw teeth are arranged on the outer edgeof the outer knife net body, and the outer ends of the saw teeth are arranged in an arc shape. A plurality of saw teeth are distributed in the circumferential direction of the outer knife net body atintervals, and the saw teeth are arranged flat and located on the same plane. A groove is formed in the position, between every two adjacent connecting sheets, of the base, and the grooves and the sawteeth form a channel for allowing hair to enter. The thickness of the saw teeth is larger than that of the inner knife net body. The hair can be prevented from being too long to be clamped, more client needs can be met, and the shaving effect is better. The hair can be roughly cut and finely cut correspondingly, the requirements of more clients for the hair length can be met, and use is more convenient.

The invention discloses a characteristic sequence identification method of common toxigenic fungi in drug quality control. The characteristic sequences used are ITS and LSU, and their amplification primer pair sequences are shown as SEQ ID NO.1 to SEQ ID NO.2 and SEQ ID NO.3 to SEQ ID NO.4, respectively. The characteristic sequences adopted by the invention have a moderate length and meet the length requirements of characteristic sequence, have good universality and can be applied to common toxigenic fungi, have strong discrimination and can effectively distinguish the sequence differences offungi at the level of ''genus'' or ''species'', have high accuracy, can be used for fungus identification separately, and can be used to further improve the identification level of strains in the wayof combining the two characteristic sequences, and the results are stable and reliable. In conclusion, the characteristic sequence identification method of common toxigenic fungi in the invention provides an effective and widely applicable fungus identification method for drug quality control.

The invention discloses a heat exchange pipe, which comprises an outer pipe at least. The interior of the outer pipe serves as a medium passage. A heat exchange element is configured inside the medium passage. The heat exchange element divides the medium passage into a direct heat exchange zone which exchange heat with the outer pipe and an indirect heat exchange zone which exchange heat with the heat exchange element. The heat exchange medium inside the indirect heat exchange zone exchanges heat with the heat exchange medium inside the direct heat exchange zone via the heat exchange element. In addition, the invention provides an on-line pipe-making processing technique of the pipe, which is adopted to overlap the outer pipe with the heat exchange element by means of an on-line welding technique. Because the heat exchange element is configured inside the outer pipe, the heat exchange area of the heat exchange pipe provided by the invention is increased, which greatly improves the heat exchange efficiency of the indirect heat exchange zone so that the heat exchange pipe provided by the invention is superior to the current heat exchange pipes in terms of the overall heat exchange efficiency. In addition, the invention has low cost and is convenient for manufacturing, and the heat exchange pipe provided by the invention can be applied to high-efficiency heat exchangers or heat exchanging equipment of multiple industries like petroleum, chemicals, fertilizer, boilers, pharmacy, foodstuff, electric power, nuclear power, environmental protection, heat supply and the like.

The invention provides a dynamic phosphorization device and method for metal wires and solves the technical problems that the existing phosphorization device occupies a large space, is low in phosphorization efficiency, is poor in phosphorization effect and cannot meet later drawing acceleration requirements. The dynamic phosphorization device is provided with a phosphorization trough, a power supply and a liquid storing tank and is further provided with a conducting device and a wire coiling device, wherein the conducting device is close to the wire inlet position of the phosphorization trough, and the liquid storing tank is arranged below the phosphorization trough and connected with the phosphorization trough through a water inlet pipe and a water return pipe; the wire coiling device comprises a winding drum and a wire coiling driving device, the winding drum is arranged in the phosphorization trough, the winding drum is connected with the wire coiling driving device through a winding drum shaft, and the winding drum shaft penetrates through the side wall of the phosphorization trough; and the inner surface of the phosphorization trough is provided with a metal electrode plate, the metal electrode plate is connected with a positive electrode of the power supply through a cable, and the conducting device is connected with a negative electrode of the power supply through a cable. The dynamic phosphorization device and method are widely applied to the non-acid-pickling drawing field of the metal wires.

A triple-clutch parallel-shaft-output automatic transmission comprises a clutch, a transmission output shaft, transmission gears, a coupling device and a coupler. The clutch includes three clutches, namely, first clutch, a second clutch and a third clutch; the distribution of the transmission gears on the three clutch shafts feature: in addition to a lowest gear, a highest gear and a reverse gear,each working gear of each clutch shaft having two a prepared gear ratio mounted on another two clutch shafts respectively, wherein the other prepared gear is one prepared gear lower than the workinggear. The triple-clutch parallel-shaft-output automatic transmission has the advantages that shift delay as in dual-clutch transmissions is avoided; in case of road jamming, high heat and abrasion ofthe clutches can be relieved; the transmission herein employing the parallel shaft output structural form has short length and can meet the requirement of front-engine automobiles for transmission length.

The invention discloses a turbulent-laminar-flow conversion device at an outlet of a cutting fluid circulating pool. The turbulent-laminar-flow conversion device comprises a rectangular tube, a liquidoutlet, a group of downward diversion damping sheets of the liquid inlet and a group of upward diversion damping sheets of the liquid inlet. The liquid inlet is formed in the rear end of the rectangular tube. The sectional area of the liquid outlet is more than three times of the sectional area of the liquid inlet. Each downward diversion damping sheet and each upward diversion damping sheet arealternately arranged at an interval and are parallel to the cross section of the rectangular tube. The upper end edge of each downward diversion damping sheet is connected with the upper cavity wall of the rectangular tube. The left end edge and the right end edge of each downward diversion damping sheet are correspondingly connected with the upper part of the left side wall and the upper part ofthe right side wall of the rectangular tube. The lower end edge of each upward diversion damping sheet is connected with the lower cavity wall of the rectangular tube, and the left end edge and the right end edge of each upward diversion damping sheet are correspondingly connected with the lower part of the left side wall and the lower part of the right side wall of the rectangular tube. The turbulent-laminar-flow conversion device has the beneficial effects of being small in size, reliable to work, low in manufacturing cost and the like.

The invention discloses a high-capacity transformer coil which comprises an upper split coil and a lower split coil, wherein the upper split coil is connected in parallel with the lower split coil, and the upper split coil and the lower split coil are foil type windings. The traditional high-capacity transformer coil is split into an upper part and a lower part, so that the requirement of shaft length of an aluminum winding movement is met, a coil adaptive to a high-capacity transformer can be produced, and various defects of winding the high-capacity transformer coil by using wires are avoided.

The invention provides a fish scale removing device, and belongs to the technical field of fish processing. The device comprises a base, a clamping rod, a movable rod, a first driving mechanism, a scaling mechanism and a first motor, a first supporting plate and a second supporting plate are fixedly arranged on the base in parallel, and a first circular plate and a second circular plate are coaxially and rotationally arranged on the opposite side faces of the first supporting plate and the second supporting plate through a first rotating shaft and a second rotating shaft correspondingly; the clamping mechanism can horizontally fix the fish between the first circular plate and the second circular plate, two third supporting plates are fixedly arranged on the base in parallel, the movable rod is horizontally arranged between the two third supporting plates in a sliding mode, and the first driving mechanism can drive the movable rod to horizontally slide back and forth. The scale scraping mechanism can scrape scales on the upper surfaces of fishes, the first motor is fixedly arranged on the second supporting plate through the first horizontal plate, and the first motor is in transmission connection with the second rotating shaft. The device can quickly remove scales on the surface of fish, is simple to operate, and saves time and labor.

The invention discloses a long sequence dual-prediction and informer-based high-frequency time sequence data effective transmission method for an intelligent factory, and relates to the field of intelligent manufacturing, and the method comprises the steps: firstly, building a cloud-edge collaborative long sequence dual-prediction architecture, then deploying a trained long sequence prediction model at an edge gateway and a cloud server of the architecture, and finally constructing a long sequence prediction model; and finally, reducing the transmission quantity of high-frequency data on line by adopting a long-sequence dual-prediction method, and ensuring the precision of the data. According to the method, the structure of a traditional dual-prediction method is improved, and the reasoning frequency of the prediction model is reduced through long sequence prediction, so that the application frequency of the traditional method is greatly improved, and it is possible that the method is used for reducing the transmission quantity of high-frequency data needed in the intelligent manufacturing process. And meanwhile, the latest deep learning model informer is introduced and combined to solve the problems of gradient disappearance and sharp increase of model reasoning time caused by long sequence prediction, so that the transmission quantity reduction proportion and the application frequency of the long sequence dual-prediction method are further improved.

The invention discloses an automobile steering sensor installation structure which comprises a steering transmission shaft, a steering sensor and a shell used for fixing the steering sensor. A sensor torsion bar is arranged in the steering sensor. The steering transmission shaft comprises an upper steering transmission shaft body and a lower steering transmission shaft body. One end of the sensor torsion rod is connected with the upper steering transmission shaft body, and the other end of the sensor torsion rod is connected with the lower steering transmission shaft body. The shell is fixedly connected with a swing rod. The automobile steering sensor installation structure is further provided with a swing rod fixing base which is fixed to an automobile body. The swing rod fixing base and the swing rod are not located in the same plane. An adjusting rod is arranged between the swing rod fixing base and the swing rod. The adjusting rod is movably connected with the swing rod fixing base and the swing rod. The automobile steering sensor installation structure has the advantages of being convenient to adjust, short in development period and low in cost, and the automobile steering sensor installation structure can be widely applied to the field of automobile steering systems.