31results about How to "Low technical proficiency required" patented technology

The invention relates to a treatment method for deformation of massive lost foam. The method comprises the following steps of: correcting a deformed white die, recovering the corrected white die, making a shelf in accordance with the shape of the white die by using square steel, making anti-deformation radian, fixing the white die on the shelf, hanging the white die together with the fixing shelf, filling rugged dead angles on the white die subjected to shakeout vibration by using resin sand, spreading bottom sand in a sand box, flatly placing the white die on the bottom sand in the sand box,fixing the easily deformed part of the white die by using a refractory brick, and starting uniform shakeout, wherein the front and back, left and right height fall does not exceed 15 centimeters; compacting for 45 seconds; and finally discharging the top sand, and performing compaction after the top sand is flush with the upper opening of the sand box. By the method, the deformation problem of the massive lost foam is effectively solved, human-made defects and waste products are reduced, and the produced product has high precision and high surface finishment.

The invention discloses a multi-axial synchronous control system and a multi-axial synchronous control method for an all-electric bending machine. The multi-axial synchronous control system comprises a motion control board clamp, a numerical control system and a plurality of groups of slide block driving mechanisms, wherein each group of the slide block driving mechanisms comprises a servo driver, a permanent magnet synchronous servo motor, a synchronous belt transmission mechanism, a ball screw and a grating scale; the permanent magnet synchronous servo motor is connected with the ball screw through the synchronous belt transmission mechanism; the bottom end of the ball screw is arranged on the top end of a bending machine slide block; the grating scale is arranged on the back of the bending machine slide block and is on the same vertical axis with the ball screw; the permanent magnet synchronous servo motor is connected with the servo driver; and the servo driver and the grating scale are respectively connected with the numerical control system through the motion control board clamp. According to the system, the synchronous operating performance and the bending positioning precision of multiple permanent magnet synchronous servo motors can be obviously improved.

The invention discloses a vertical type double-station steel pipe fitting rotation automatic welding machine tool and belongs to the field of automatic welding machine tools. The vertical type double-station steel pipe fitting rotation automatic welding machine tool comprises a body, automatic welding devices and an electric control device; the body comprises two identical welding chambers; identical automatic welding devices are arranged inside the welding chambers; the automatic welding devices comprise welding devices, vertical correction clamping devices and rotation devices; the welding devices comprise welding wire feeding devices and welding guns; the vertical correction clamping devices comprise air cylinder fixing bases, air cylinders and rotary compression heads; the rotary compression heads comprise cylinders, bearings and bosses; the rotation devices comprise motors, rotary discs, bearing discs and positioning core columns; the electric control device respectively controls the welding devices, the vertical correction clamping devices and the rotation devices. The vertical type double-station steel pipe fitting rotation automatic welding machine tool has the advantages of guaranteeing the perpendicularity of a steel pipe and a pipe base, enabling peripheral weld to be uniform and smooth, improving the welding quality and the product yield, enhancing the welded junction soundness and improving the production efficiency due to a double-station welding mode.

The invention relates to a long focal-depth laser cleaning head device and a cleaning method thereof. The long focal-depth laser cleaning head device comprises a laser generator; at the rear of the laser generator and along the heading direction of laser beams, a straightening lens, a protecting lens and a polarizer are sequentially arranged; a beam expander is arranged between the straightening lens and the protecting lens, a long focal length focus lens is arranged between the protecting lens and the polarizer, and a focus lens is arranged in the heading direction of the laser beams and at the rear of the polarizer. The long focal-depth laser cleaning head device is reasonable and novel in structural design and effectively ensures cleansing of uneven metal surfaces and reduce the requirements of laser cleaning on proficiency of workers, and workers only need to maintain the distance of the long focal-depth laser cleaning head device and a cleaned surface with a certain range, so that control convenience of the long focal-depth laser cleaning head device can be achieved, and the shortcoming of poor cleaning effects due to distance adjustment inaccuracy, and uniformity of the metal surface cleaned through the long focal-length laser cleaning head device can be effectively ensured.

The invention discloses a cold extruder for machining a sprayer shaft. The cold extruder comprises an upper extrusion part, an extrusion table, a demolding part, a PLC control system, a hydraulic system and a guide support column; the upper extrusion part is supported by the guide support column; the upper extrusion part and the demolding part are driven by the hydraulic system to perform an extrusion motion along the guide support column; and the PLC control system controls the hydraulic system to work. The cold extruder is characterized in that the upper extrusion part includes an upper pressing head and an upper mold; the upper mold and the upper pressing head are detachably connected; a detachable lower mold is arranged on the extrusion table; a hole is formed in the bottom of the lower mold; the demolding part is provided with a hydraulic cylinder and a demolding rod driven by the hydraulic cylinder; and the demolding rod is positioned rightly below the hole of the lower mold. The cold extruder solves the problems of low machining efficiency and high machining cost in large-batch machining of shafts used by atomizing agents in the prior art.

The invention discloses a ground paving base, a paving assembly and paving method. The ground paving base comprises a strutting piece, a bed, and a stud; the strutting piece comprises a bearing face and a first insertion part which is back on to the bearing face; a thread through hole is formed in the strutting piece; the axis of the thread through hole is perpendicular to the bearing face; a second insertion part fitted with the first insertion is arranged on the bed; the first insertion and the second insertion are connected in a inserting mode in the axis direction of the thread through hole; the stud is connected in the thread through hole in a threaded mode; and the stud is rotated to adjust the distance between the bearing face and the bed. The ground paving base, the paving assemblyand the paving method can solve the problem of ground leveling, and improve the convenience of the pipeline paving.

The invention discloses an artificial feeding device for oriental fruit moth. The artificial feeding device comprises a container main body, a container cover, a cloth sleeve and a movable plate, wherein the container main body is a circular container; small holes are formed in the bottom of the container bottom; the periphery of the container bottom is provided with a base; 3-4 notches and bayonets are separately formed in the base; the container cover is connected to the container main body through the bayonets; a plurality of gas vents are uniformly formed in the container cover; the cloth cover is the same with the container main body in shape; the cloth cover is arranged in the container main body; the bottom of the cloth cover is provided with cloth cover holes corresponding to the small holes; the diameter of the movable plate is equal to the inner diameter of the base; the thickness of the movable plate is equal to the spacing among the bayonets; and the outer edge of the movable plate, the notches and the bayonets are symmetrically provided with 3-4 bumps. An artificial feeding method adopting the artificial feeding device for the oriental fruit moth comprises the following steps: (1) preparing feeding environment equipment; (2) preparing the artificial feeding device; (3) preparing a feeding food source; (4) preparing before picking eggs; (5) picking eggs; (6) carrying out feeding operation before emergence; and (7) carrying out emergence for laying eggs.

The invention belongs to the technical field of Raman spectrum detection and discloses a Raman spectrum model establishment method for rapid nondestructive identification on diapause termination silkworm eggs. The method comprises a Raman spectrum detection technique and a PLS_DA classification algorithm and mainly comprises steps of sample selection, data acquisition, data digging, conclusion analysis, and the like, wherein the step of sample selection comprises steps of selecting diapause eggs and diapause termination eggs of two varieties of Dazao and 9Fu*7Xiang; the step of data acquisition comprises steps of carrying out spectrum data acquisition by using a laser Raman spectrometer, processing Raman spectrum data, and establishing a PLS_DA qualitative analysis Raman spectrum model. Byadopting the method, diapause and diapause termination silkworm eggs can be rapidly and nondestructively distinguished, and identification analysis on nondestructive diapause termination household silkworm eggs can be finally achieved.

The invention relates to an automatic-zooming laser cleaning head device and a cleaning method thereof. The automatic-zooming laser cleaning head device comprises a laser generator, a straightening mirror, a protecting mirror and a galvanometer are sequentially arranged on the rear side of the laser generator along the advancing direction of light beams, a beam expanding mirror is arranged between the straightening mirror and the protecting mirror, a liquid-state zooming lens is arranged between the protecting mirror and the galvanometer, and a focusing mirror is arranged on the rear side of the galvanometer along the advancing direction of the light beams. Therefore, the cleaning head device is reasonable and novel in structural design, cleaning of metal with an uneven surface by the laser cleaning head device is ensured effectively, requirements of laser cleaning on technical proficiency of workers are lowered effectively, the workers only need to maintain a distance between the laser cleaning head device and a cleaned face within a certain range, convenience in controlling the laser cleaning head device can be realized, the defect of poor cleaning effect caused by inaccurate distance adjusting is avoided, and uniformity of the laser cleaning head device in cleaning the surface of the metal is ensured effectively.

The invention discloses an automatic feeding device for a foaming machine. The automatic feeding device comprises a charging basket, a batcher and two pneumatic butterfly valves. The automatic feeding device is applied to the foaming machine for achieving automatic feeding when an evanescent mode die sheet is fabricated. The automatic feeding device is simple to install and convenient to use; the technological operation is simplified; the demand on the technical proficiency of a worker is greatly reduced; the labor intensity is significantly alleviated; the production efficiency is improved; the uniform degree of evanescent mode beads is improved; and the density of the beads is relatively stable and consistent.

The invention relates to an automobile door fender binding tool, and belongs to the technical field of automobile door binding. The automobile door fender binding tool comprises a binding mold, a support mold and a hydraulic clamp assembly, wherein a flanging blocking table is arranged on the top of the binding mold; a limiting groove is formed at the bottom of the binding mold; the hydraulic clamp assembly comprises a hydraulic jaw plate, a panel arranged on the hydraulic jaw plate, a hydraulic clamp base, a hydraulic carrier rod and a positioning flashboard; the hydraulic jaw plate is arranged on the hydraulic clamp base through a pin shaft; the hydraulic clamp base is arranged on the support mold; the hydraulic carrier rod is arranged behind the hydraulic jaw plate; the positioning flashboard is arranged on the hydraulic clamp base; the positioning flashboard is provided with a bump matched with the limiting groove. The automobile door fender binding tool has a simple structure, is low in cost, has a wide application range, and can adapt to binding of complicated shapes; by adopting the automobile door fender binding tool, the requirement on the technical proficiency of an operator is lowered greatly, and the labor intensity of the operator is lowered.

The invention discloses a vacuum device for an automatic glue machine. The vacuum device comprises a vacuum pump and an air storage tank, an inlet flange of the air storage tank is fixedly connected with an inlet of the vacuum pump, an outlet of the air storage tank is fixedly connected with a first connection mouth of a four-way valve through a ventilating pipe, the part, between the air storagetank and the four-way valve, of the ventilating pipe is provided with a first electromagnetic valve, a second connection mouth of the four-way valve is fixedly connected with a lower leaning mold through the ventilating pipe, the position between the lower leaning mold and the four-way valve is provided with a second electromagnetic valve fixed to the ventilating pipe, a third connection mouth ofthe four-way valve and an air inlet of an upper leaning mold are fixedly connected through the ventilating pipe, the part, between the upper leaning mold and the four-way valve, of the ventilating pipe is provided with a third electromagnetic valve, and a fourth connection mouth of the four-way valve is fixedly connected with the ventilating pipe and leads to the atmosphere. The vacuum device forthe automatic glue machine is simple to install and convenient to use, process operations are simplified, the requirements for the technology proficiency degree of workers are greatly lowered, the production efficiency and product quality are improved, and the vacuum device for the automatic glue machine is made to be continuous and more stable and consistent.

The invention relates to the technical field of punching with hydraulic machines, in particular to a one-time forming hydraulic machine for a mine tray. The one-time forming hydraulic machine for the mine tray is characterized by comprising a hydraulic cylinder, an upper die and a lower die, wherein the lower die is installed on the hydraulic cylinder and internally provided with a punch. The one-time forming hydraulic machine for the mine tray has the characteristics that pressing is stable, operation can be learned easily, and simpleness and safety are achieved.

The invention provides a one-time forming hydraulic press for a mining tray and relates to the technical field of stamping of hydraulic presses. The one-time forming hydraulic press is characterized by comprising a hydraulic cylinder, an upper mould and a lower mould, wherein the lower mould is mounted on the hydraulic cylinder; and punches are included in the lower mould. The one-time forming hydraulic press has the characteristics that the press forming is smooth and steady, the operation is easy to learn and high simplicity and safety are realized.

The invention discloses an ultrasonic welding construction method for a small-caliber PE natural gas pipeline, and relates to a pipeline connection method. The ultrasonic welding construction method for the small-caliber PE natural gas pipeline is high in construction efficiency and easy and convenient to operate. The ultrasonic welding construction method for the small-caliber PE natural gas pipeline comprises the following steps that the pipeline is subjected to section cleaning, chamfering and surface oxide skin removing treatment; the pipeline is installed in a clamping and welding device; the position of the clamping and welding device is fixed; an upper fixing block and a lower fixing block are arranged to fix the upper pipeline section and the lower pipeline section correspondingly; a plurality of ultrasonic wave generating devices are arranged on the periphery of the upper fixing block, and the ultrasonic wave generating devices are pressed by pressing blocks; an electromagnetic valve and a push rod are arranged on each pressing block, and the bottom of each push rod is connected with the pressing block; and the ultrasonic wave generating devices are started, ultrasonic waves are generated on the pressing faces of the two pipeline sections, the pressing faces of an upper PE natural gas pipeline body and a lower PE natural gas pipeline body are melted, and the welding process is completed.

The invention provides a method of producing a rigid joint of a single-layer reticulated shell. The rigid joint comprises a rigid joint body and a plurality of connecting arms connected on the rigid joint body, and the method includes the steps that a lost foam with the same shape and size as the rigid joint is assembled; a sand shell of mold core matched the shape and size of the lost foam is produced; and the rigid joint is cast molding. A method of producing a single-layer reticulated shell comprises that the single-layer reticulated shell includes the rigid joint and rod pieces, and a plurality of rod pieces are connected in a gridding shape; and the rigid joint is cast by the lost foam, and connected the rod pieces with the rigid joint through welding. The single-layer reticulated shell and the rigid joint produced by the method of producing single-layer reticulated shell and the rigid joint thereof has the advantages of being high in production efficiency, low labor in intensity,greatly reducing 7in the technical proficiency of workers, and very suitable for building components producing industry with large batch demand.

The invention discloses a sealant coating device applicable to a trunk back door. The sealant coating device comprises a glue outlet pipe. The glue outlet pipe comprises a connecting segment with the rear end capable of being connected with a sealant conveying device and a thin inserting segment connected to the front end of the connecting segment. The front end of the inserting segment is connected with a coating pipe, wherein an included angle is formed between the inserting segment and the coating pipe. A rectangular glue outlet arranged in the axial direction is formed in the side wall of the coating pipe. An adjustable limiting mechanism is arranged on the glue outlet pipe. The adjustable limiting mechanism comprises a sliding ring sleeve arranged on the inserting segment in a sleeving manner. A limiting rod is arranged on the side wall of the sliding ring sleeve. A locking screw capable of locking the sliding ring sleeve is arranged on the sliding ring sleeve. According to the sealant coating device applicable to the trunk back door, continuous coating of sealant of the truck back door can be achieved, so that the production efficiency can be improved, the sealing rust resistance of the truck back door is guaranteed, the requirement on the technical proficiency of operating personnel can be lowered, and meanwhile the consistency of the sealant profile is guaranteed.

The invention relates to a method for manufacturing an exhaust passage for eliminating kitchen fume and bathroom waste gas. The method for manufacturing the exhaust passage includes respectively smearing gel material on two inner sides of a V-shaped bottom form and two outer sides of a reverse-V-shaped top form matched with the V-shaped bottom form. Forms in the manufacturing process are V-shaped, and the method requires no vertical plastering forming compared with the conventional forming process for the exhaust passage, so that the requirement for technical skilled degree of production workers is low, labor is saved, and the wall depth of the exhaust passage is easy to evenly control. Compared with a subsequently-modified method for manufacturing an integrated residential exhaust passage by a rotatably foldable form, the method requires no rotation of any form in manufacturing process, and accordingly the time for rotating a corresponding form need not be controlled. Therefore, the method for manufacturing the exhaust passage is easy to control, convenient to use and convenient for popularization of large-scale industrialization.

The invention relates to an automatic zooming laser cleaning head device and a cleaning method thereof. The automatic zooming laser cleaning head device comprises a laser generator, wherein a collimating mirror, a protective mirror and a vibrating mirror are sequentially arranged at the rear side of the laser generator in a travelling direction of a light beam; a beam expanding mirror is arranged between the collimating mirror and the protective mirror; a liquid-state zooming lens is arranged between the protective mirror and the vibrating mirror; and a focusing mirror is arranged at the rear side of the vibrating mirror in the travelling direction of the light beam. The cleaning head device is reasonable and novel in structural design, effectively guarantees cleaning on an uneven metal surface, effectively reduces requirements on technical proficiency of a worker of laser cleaning, can realize convenience in laser cleaning head device control by keeping a distance between the laser cleaning head device and a cleaning surface within certain range by the worker, avoids the defect that cleaning effect is poor as a result of inaccurate distance adjustment, and effectively guarantees uniformity of cleaning the metal surface by the laser cleaning head device.

The invention discloses a method for machine-sewing a ball glued to close the mouth, which is applied to a football ball shell composed of a pentagonal skin and a hexagonal skin. The method includes drawing a line on the closed skin, cutting the skin, and applying glue Steps such as hemming, sewing the ball shell, installing the bladder, closing the seam with a high car, pasting Oxford cloth, kneading the leather, inflating the bladder, flattening and shaping, dispensing, etc., the present invention adopts the adhesive closing method, which does not require manual needlework closing. It avoids the occurrence of air leakage caused by the needle piercing the bladder, the operation is simple, the closing speed is fast, the technical proficiency of the workers is not high, and the work efficiency can be improved.

The invention discloses a non-welding connection construction method for PE natural gas pipes, and relates to a pipeline connection method. The non-welding connection construction method for the PE natural gas pipes realizes convenient installation and has high construction efficiency. The non-welding connection construction method for the PE natural gas pipes comprises the following steps that section cleaning and chamfering are conducted on two sections of PE natural gas pipes needing to be connected; an external pressing piece and a sealing supporting piece are installed in a butt joint mode, wherein the external pressing piece is located outside the sealing supporting piece, and the inner diameter of the external pressing piece is slightly smaller than the outer diameter of the PE natural gas pipes; the two sections of PE natural gas pipes are soaked in hot water to be softened; water drops on the surfaces of the two sections of PE natural gas pipes are wiped off; and the sealing supporting piece is aligned to the inner surfaces of the two sections of PE natural gas pipes, the external pressing piece is aligned to the outer surfaces of the two sections of PE natural gas pipes, and the PE natural gas pipes are pushed to a preset position to be extruded between the external pressing piece and the sealing supporting piece.

The invention discloses an artificial feeding device for oriental fruit moth. The artificial feeding device comprises a container main body, a container cover, a cloth sleeve and a movable plate, wherein the container main body is a circular container; small holes are formed in the bottom of the container bottom; the periphery of the container bottom is provided with a base; 3-4 notches and bayonets are separately formed in the base; the container cover is connected to the container main body through the bayonets; a plurality of gas vents are uniformly formed in the container cover; the cloth cover is the same with the container main body in shape; the cloth cover is arranged in the container main body; the bottom of the cloth cover is provided with cloth cover holes corresponding to the small holes; the diameter of the movable plate is equal to the inner diameter of the base; the thickness of the movable plate is equal to the spacing among the bayonets; and the outer edge of the movable plate, the notches and the bayonets are symmetrically provided with 3-4 bumps. An artificial feeding method adopting the artificial feeding device for the oriental fruit moth comprises the following steps: (1) preparing feeding environment equipment; (2) preparing the artificial feeding device; (3) preparing a feeding food source; (4) preparing before picking eggs; (5) picking eggs; (6) carrying out feeding operation before emergence; and (7) carrying out emergence for laying eggs.

The invention discloses an ultrasonic welding construction method for large-diameter PE natural gas pipelines, relates to a pipeline connection method, and aims to provide the ultrasonic welding construction method which is used for the large-diameter PE natural gas pipelines and is high in welding efficiency and easy to operate. The ultrasonic welding construction method for the large-diameter PE natural gas pipelines comprises the following steps that S10, section cleaning and chamfering operation is conducted on two sections of PE natural gas pipelines required to be connected; S20, the two sections of PE natural gas pipelines are soaked in hot water, so that the two sections of PE natural gas pipelines are softened; S30, water drops on the surfaces of the two sections of PE natural gas pipelines are wiped away; S40, a sealing and supporting piece is aligned with the inner surfaces of the two sections of PE natural gas pipelines, and the PE natural gas pipelines are rapidly pushed to the preset positions; and S50, a plurality of annular ultrasonic welding belts are additionally arranged between the PE natural gas pipelines and the sealing and supporting piece.

The invention discloses a vertical double-station steel pipe fitting rotary automatic welding machine tool, which belongs to the field of automatic welding machine tools. It includes a bed, an automatic welding device, and an electrical control device. The bed includes two identical welding rooms, and the welding rooms are respectively equipped with the same automatic welding device; the automatic welding device includes a welding device, a vertical correction fastening device and a rotary device. The welding device is provided with a welding wire feeding device and a welding torch; the vertical correction fastening device includes a cylinder fixing seat, a cylinder and a rotating pressing head; the rotating pressing head includes a cylinder, a bearing and a round table; the rotating device includes a motor, a rotating disc, The carrying plate and the positioning stem, and the electric control device respectively control the welding device, the vertical correction fastening device and the rotary device. The invention guarantees the verticality of the steel pipe and the pipe seat, makes the surrounding welding seam even and smooth, improves the welding quality and product qualification rate, and enhances the firmness of the welding joint; adopts a double-station welding method to improve production efficiency.

The invention discloses a cold extruder for machining a sprayer shaft. The cold extruder comprises an upper extrusion part, an extrusion table, a demolding part, a PLC control system, a hydraulic system and a guide support column; the upper extrusion part is supported by the guide support column; the upper extrusion part and the demolding part are driven by the hydraulic system to perform an extrusion motion along the guide support column; and the PLC control system controls the hydraulic system to work. The cold extruder is characterized in that the upper extrusion part includes an upper pressing head and an upper mold; the upper mold and the upper pressing head are detachably connected; a detachable lower mold is arranged on the extrusion table; a hole is formed in the bottom of the lower mold; the demolding part is provided with a hydraulic cylinder and a demolding rod driven by the hydraulic cylinder; and the demolding rod is positioned rightly below the hole of the lower mold. The cold extruder solves the problems of low machining efficiency and high machining cost in large-batch machining of shafts used by atomizing agents in the prior art.

Environmentally friendly water-based glue bonding mechanical leather basketball, which involves the technical field of leather products; it includes an environmentally friendly inner tube, the outer surface of the environmentally friendly inner tube is closely adhered to a polyester material cloth through natural latex glue, and the outer wall of the polyester material cloth is bonded through latex It has PU leather outer skin; it uses an environmentally friendly inner tube that meets the environmental protection standard of PAHs <1ppm; it improves the highest environmental protection standard that can be achieved in existing quantifiable production by a whole order of magnitude; it can pass the US FDA food safety regulations and the EU REACH regulations. 168 items of environmental testing for substances of high concern; environmental quality comparable to medical grade standards; the structural strength and fastness of the material formed by chemical cross-linking is much higher than that of physically cured and bonded products; high efficiency, requiring less technical proficiency of operators ; Water-based glue has a low unit price and no volatility, saving a lot of solvent costs; it has an environmental protection demonstration effect.

The invention discloses a multi-axial synchronous control system and a multi-axial synchronous control method for an all-electric bending machine. The multi-axial synchronous control system comprises a motion control board clamp, a numerical control system and a plurality of groups of slide block driving mechanisms, wherein each group of the slide block driving mechanisms comprises a servo driver, a permanent magnet synchronous servo motor, a synchronous belt transmission mechanism, a ball screw and a grating scale; the permanent magnet synchronous servo motor is connected with the ball screw through the synchronous belt transmission mechanism; the bottom end of the ball screw is arranged on the top end of a bending machine slide block; the grating scale is arranged on the back of the bending machine slide block and is on the same vertical axis with the ball screw; the permanent magnet synchronous servo motor is connected with the servo driver; and the servo driver and the grating scale are respectively connected with the numerical control system through the motion control board clamp. According to the system, the synchronous operating performance and the bending positioning precision of multiple permanent magnet synchronous servo motors can be obviously improved.

The invention discloses an automatic feeding device for a foaming machine. The automatic feeding device comprises a charging basket, a batcher and two pneumatic butterfly valves. The automatic feeding device is applied to the foaming machine for achieving automatic feeding when an evanescent mode die sheet is fabricated. The automatic feeding device is simple to install and convenient to use; the technological operation is simplified; the demand on the technical proficiency of a worker is greatly reduced; the labor intensity is significantly alleviated; the production efficiency is improved; the uniform degree of evanescent mode beads is improved; and the density of the beads is relatively stable and consistent.

The invention provides a one-time molding hydraulic press for a mine tray and relates to the technical field of hydraulic press stamping. The one-time molding hydraulic press is characterized by comprising a hydraulic cylinder, an upper mold and a lower mold, wherein the lower mold is mounted on the hydraulic cylinder; a stamping head is contained in the lower mold. The one-time molding hydraulic press provided by the invention has the characteristics of being stable to press, easy for study in operation, simple, safe and the like.

The invention belongs to the technical field of Raman spectrum detection and discloses a Raman spectrum model establishment method for rapid nondestructive identification on diapause termination silkworm eggs. The method comprises a Raman spectrum detection technique and a PLS_DA classification algorithm and mainly comprises steps of sample selection, data acquisition, data digging, conclusion analysis, and the like, wherein the step of sample selection comprises steps of selecting diapause eggs and diapause termination eggs of two varieties of Dazao and 9Fu*7Xiang; the step of data acquisition comprises steps of carrying out spectrum data acquisition by using a laser Raman spectrometer, processing Raman spectrum data, and establishing a PLS_DA qualitative analysis Raman spectrum model. Byadopting the method, diapause and diapause termination silkworm eggs can be rapidly and nondestructively distinguished, and identification analysis on nondestructive diapause termination household silkworm eggs can be finally achieved.