51results about How to "Good connection effect" patented technology

The invention relates to a quick automatic installation tool for charged fire welding operation. The tool comprises a clamping device, a screwing device, an unlocking device and an insulating rod, wherein the screwing device comprises a spiral self-elevating sleeve, a rotary sleeve fixing seat and a fixed torque spanner; the spiral self-elevating sleeve has external threads, and the rotary sleeve fixing seat has internal threads; the spiral self-elevating sleeve is connected with the rotary sleeve fixing seat by the threads; one end of the spiral self-elevating sleeve is connected with the fixed torque spanner in a transmission way, and the other end of the spiral self-elevating sleeve is in profile connection with a nut of a J-shaped parallel groove clamp; the rotary sleeve fixing seat is fixed relative to the clamping device; the clamping device and the screwing device are positioned at one end of the insulating rod, and the unlocking device is positioned at the other end of the insulating rod or is close to the other end of the insulating rod. The quick automatic installation tool is used for installing the J-shaped parallel groove clamp applied to the fire welding operation, can realize long-distance operation, is convenient in clamping and rapid in fire welding process, and is capable of realizing automatic long-distance quick unlocking.

The invention provides a direct leaking stoppage fiber grouting material and a preparation method thereof. The fiber grouting material is prepared from the following substances in percentage by weight: 15 to 20 percent of Portland cement, 40 to 45 percent of sodium silicate, 5 to 10 percent of fly ash or mineral waste residues, 25 to 30 percent of water, 3 to 4 percent of basalt fibers and 1 to 2 percent of retarder. The preparation method comprises the following steps: equally dividing the fly ash or the mineral waste residues into two parts according to the mass ratio; uniformly mixing one part of the fly ash or the mineral waste residues with the basalt fibers, the Portland cement and the water to obtain a mixed solution I; uniformly mixing the other part of the fly ash or the mineral waste residues with the sodium silicate to obtain a mixed solution II; slowly pouring the mixed solution II into the mixed solution I for uniformly mixing to obtain the fiber grouting material. The fiber grouting material provided by the invention can meet the requirements on three properties, namely groutability, controllability and permeability resistance, also has the advantages of high setting rate, high long-term strength and the like at the same time, and has a broad application prospect in related fields such as goaf, roads and foundation treatment.

A compound modification method of natural wheat protein and the application in starch food; the method and application relate to a compound modification method of natural wheat protein and the application of additive in starch food. The present invention provides a compound modification method of natural wheat protein. Wheat protein and reaction medium are taken to prepare the suspension and the suspension is oscillated by ultrasonic; and then the suspension is heated by water bath and mixed by magnetic force; the acid solution is divided evenly according to the circulation times and is added into the suspension in turn; the water bath is stopped 8 to 15 minutes later; the excessive acid is neutralized by alkalescent salt added until the pH value reaches 7; and then the suspension is oscillated by ultrasonic continuously and the alkalescent salt concentration is 0.05 to 0.2 mol / l; the product finally obtained is frozen and dried until the constant weight; and then the product is ground to get the natural wheat protein modified with the compound modification method. The modified wheat protein, as the additive of starch food, can replace the additive of inorganic salts and be used for food processing of flour powder, noodle, bread, etc.

The invention provides a circuit breaker. The circuit breaker comprises a shell, a contact system, a transmission system, a tripping system, a driving motor and an operating handle, wherein the transmission system comprises a driving piece, a transmission piece, a rotating piece and a linkage piece; an elastic piece is arranged between the transmission piece and the shell; the stripping system comprises a stripping shaft; and a trigger part for pressing the tripping shaft is arranged on the transmission piece or the rotating piece. When a user is in arrearage, the driving motor drives the transmission piece to overcome the elastic force of the elastic piece to rotate to a set angle, the stripping shaft is pressed, and the contact system is switched off; after the user pays the fee, the driving motor continues to rotate, the stripping shaft is not pressed any longer, the transmission piece is detachably matched with the driving piece, the transmission piece turns round under the elastic force effect of the elastic piece, and the linkage piece is driven through the rotating piece, so that the contact system is switched on. Therefore, before the user continues to pay the electric charge, the user cannot get the electricity automatically due to the fact that the stripping system is at a trigger state and the operating handle can automatically reset to a switch-off position even if the operating handle is artificially pulled to be switched on.

The invention relates to an optical fiber end face processing method and an optical fiber connector. The method includes the steps of S1, penetrating an optical fiber through an insert core of the connector; S2, positioning length of one end, extending out of the insert core, of the optical fiber to form an extending end of the optical fiber; S3, inserting the extending end into a grinding groove of a grinder, using a grinding face of the grinding groove to abut the end face of the extending end to allow the end face to be in contact with the grinding face; S4, rotating the grinder, and grinding the end face of the extending end through the grinding face; wherein the length of the extending end is larger than the depth of the grinding groove. By the method, the problem of bad optical fiber end face cutting is solved, fully contact of optical fiber end faces is facilitated, return loss of the optical fiber connector is reduced, and insertion loss of the optical fiber connector is reduced.

The invention belongs to the technical field of photonic crystal preparation, and discloses a method of preparing a bionic photonic crystal structure color-generating textile. According to the method,an adhesive layer is arranged between a photonic crystal color-generating structure layer and a textile substrate to obtain the photonic crystal color-generating structure textile with high stability. Self-crosslinking polyacrylate is used as an adhesive to bond the photonic crystal color-generating structure layer to the textile substrate, so that the adhesion between the photonic crystal color-generating structure layer and the textile substrate is enhanced, and the stability and firmness of the photonic crystal color-generating structure layer are significantly improved.

The invention discloses a construction method for improving interlayer connection of an asphalt pavement. The method comprises the following construction process steps: (1) checking thickness, compactness, flatness, crown and the like of a base layer, carrying out refinishing, and sweeping the base layer cleanly; (2) carrying out priming treatment, and sprinkling priming oil to the surface of thebase layer; (3) sprinkling sealing oil; (4) carrying out heating treatment on a surface connecting layer of a completed base layer structure by using a pavement heating car, wherein during construction, the heating car drives at a constant speed to ensure that each unit is uniformly heated; (5) after heating, immediately spreading an asphalt surface layer, carrying out rolling as required, and sequentially completing the initial rolling, repressing and final rolling of the asphalt surface layer. According to the asphalt pavement construction method, due to the interlayer treatment measure, theinterlayer binding power of the asphalt pavement can be greatly improved, the generation and development of interlayer slip and reflection crack of the pavement are reduced, and water damaged phenomena such as scouring, pumping and pavement pot holes can be greatly reduced.

The invention discloses a method for preparing a natural cellulose containing zein mixture by using an alcoholic solvent. The method comprises the steps: firstly, at room temperature, adding Zein into an alcoholic aqueous liquid, and stirring to dissolve, so as to prepare a uniform liquid A, of which the mass percent of Zein is 2-15wt%; putting Cellulose into an aqueous liquid, which contains 6-8% of NaOH and 10-14wt% of Urea, at the temperature of -12 to -13 DEG C, and dissolving, so as to prepare a uniform liquid B, of which the mass percent of Cellulose is 0.2-8wt%; and adding the uniform liquid A into the liquid B in a manner of controlling the dry weight ratio of Zein and Cellulose to (10:1) to (2:1) and controlling Zein and Cellulose to account for 1.5-5% of the mass of a mixed liquid, and mixing to dissolve, thereby obtaining a uniform and stable mixed liquid or gel. The mixed liquid or gel can be applied to the industries, such as pharmacy and food, in a manner of being prepared into films.

The invention provides a breaker with an elastic energy-storing module. The breaker comprises a case, a contact system arranged in the case, and a transmission mechanism controlling the contact system. An elastic energy-storing module is arranged on the transmission mechanism, the elastic energy-storing module releases elastic potential energy to close the contact system quickly when the transmission mechanism rotates in the forward direction. The closing speed of the breaker is irrelative to the actuating speed of the motor, under the action of the elastic energy-storing module, the contact system has high closure speed and good switch-on performance, and thereby the breaker is highly reliable and reasonable.

The invention relates to a protecting device and method for rail potential. The protecting device comprises a programmable controller and a voltage detecting module, wherein the voltage detecting module which is used for detecting voltage between a steel rail and a protected area is in communication connection with the programmable controller; a connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate which are connected sequentially; the first connecting plate is opposite to the third connecting plate; a recess-shaped inlaying opening is formed in the second connecting plate; the bottom wall of the inlaying opening faces the direction away from the first connecting plate; and a lock catch plate and a liquid stopping plate which are connected sequentially are arranged on each of the end, which is away from the second connecting plate, of the first connecting plate and the end, which is away from the second connecting plate, of the third connecting plate. By a control cabinet, ventilating and cooling are realized, influence of particulate matter impurities can further be avoided, and the shortcomings that the effects of connection and erection of the connecting piece are lost, troublesomeness of mounting is increased, and maintenance becomes difficult are avoided.

The invention discloses a rotatable water-cooling type electrode device for an evaporator. The rotatable water-cooling type electrode device mainly consists of an electrode stem (1), a supporting barrel (9) connected with the electrode stem (1), a power connection device arranged on the electrode stem (1), and a mounting assembly which is arranged on the supporting barrel (9) and is connected with the electrode stem (1). According to the rotatable water-cooling type electrode device disclosed by the invention, the electrode stem is set to be a hollow electrode stem, so that radiating effect of the electrode stem is effectively improved; a water-cooling device is further arranged in the electrode stem for cooling the electrode stem very well, so that the electrode stem realizes automatic cooling in work, ensures insulating and sealing parts inside an electrode device from being not liable to damage at a high temperature very well, and therefore, the service life of the electrode device is greatly prolonged.

The invention discloses a waterproof construction method for roof and top plate deformation seams capable of effectively coping with the deformation condition. A reinforced concrete cover plate, foaming concrete, a geotextile protective layer, a double-layer self-sticking waterproof coiled material, waterproof sealing paste, a glass fabric, flat steel and bolts, a hot pressing structural steel plate, a rubber water-stop belt and a foam plastic plate are included. According to the waterproof construction method for the roof and top plate deformation seams capable of effectively coping with the deformation condition, waterproof block table integral pouring is conducted every a certain distance, the integrity is improved, bricking water seepage is prevented, and the worker construction platform space is reserved.

Provided is a protection type precise setting-out position finder. The position finder comprises a horizontal base of which the upper portion is provided with a bearing base, the bearing base is coordinated with a wall through a flange, and the upper portion of the wall is provided with an iron plate; the structure that the upper portion of the wall is provided with the iron plate is achieved by connecting the wall and the iron plate through a connecting piece, a first connecting piece and a third connecting piece are arranged oppositely, a notch-shaped connecting opening is formed in a second connecting piece, and the bottom wall of the connecting opening faces the direction far from the first connecting piece; the upper portion of the outer wall of the bottom of a square box is integrally connected to an iron material protrusion, the iron material protrusion is located outside the top of the iron plate, and the lower portion of the outer wall of the bottom of the square box is attached to a rubber sheet through viscose glue; a notch is formed in the top wall of the top of the iron plate, and the connecting opening is formed in the side wall in the connecting opening. Through the protection type precise setting-out position finder, the defects in the prior art that the effects of connecting and erecting are lost, the complication of mounting is improved, thus the maintenance becomes difficult, and the fixing and connecting method is always not stable enough caused by a connecting piece are reduced.

The invention is applicable to the technical field of nucleic acid testing, and provides a microfluidic nucleic acid testing card box and kit. The card box comprises a card box support, a reagent operation part, a soft connecting part, a flow path part and an amplification chamber, wherein the reagent operation part is arranged at the upper part of the interior of the card box support and is provided with a sample cracking cavity, a plurality of liquid storage cavities and a pump operation cavity; the reagent operation part is provided with a first micro-flow pipeline and a second micro-flow pipeline; one end of the first micro-flow pipeline is connected with the pump operation cavity; a third micro-flow pipeline and a plurality of fourth micro-flow pipelines are arranged on the flow pathpart; the amplification cavity is arranged below the flow path part; and a valve assembly on the soft connecting part can control the connection or disconnection between the pump operation cavity andthe sample cracking cavity and between the pump operation cavity and the corresponding liquid storage cavity as well as the connection or disconnection between the pump operation cavity and the amplification cavity. The card box is powerful in detection function, high in detection flux, high in detection speed, high in automation degree and easy and convenient to use.

The invention discloses a composite briquette binder, and belongs to the field of briquettes. Lithium-based lubricating grease, sodium-based bentonite, sodium aluminosilicate and the like are taken asraw materials to prepare a briquette binding material A, wherein the lithium-based grease has good fretting-wear-resisting performance, and while providing hydrophobicity and permeability effects andthe stable thermal effect, added hydrogen-containing silicone oil also possibly assists in providing the bonding stability of a blend, improves the bunching effect on pulverized coal particles and steadily improves the thermal effect and formation effect of the briquettes; and fish skin, rice straw, Lactobacillus bulgaricus and the like are blended and fermented, fish skin tissue and straw tissueare destroyed by microbial metabolism to obtain gum and saccharides, and thus the carbon content is increased while cohesiveness is ensured. The problems of high ash content, low carbon content and poor structural stability of the briquettes prepared through a briquette binder commonly used at present are solved.

A compound modification method of natural wheat protein and the application in starch food; the method and application relate to a compound modification method of natural wheat protein and the application of additive in starch food. The present invention provides a compound modification method of natural wheat protein. Wheat protein and reaction medium are taken to prepare the suspension and the suspension is oscillated by ultrasonic; and then the suspension is heated by water bath and mixed by magnetic force; the acid solution is divided evenly according to the circulation times and is added into the suspension in turn; the water bath is stopped 8 to 15 minutes later; the excessive acid is neutralized by alkalescent salt added until the pH value reaches 7; and then the suspension is oscillated by ultrasonic continuously and the alkalescent salt concentration is 0.05 to 0.2 mol / l; the product finally obtained is frozen and dried until the constant weight; and then the product is ground to get the natural wheat protein modified with the compound modification method. The modified wheat protein, as the additive of starch food, can replace the additive of inorganic salts and be used for food processing of flour powder, noodle, bread, etc.

A bearing device for a wheel, in which circumferential play is suppressed and which has excellent workability of connection between a hub ring and an outer joint member of a constant velocity universal joint. In the bearing device for a wheel, a stem shaft (12), which is fitted in a hole (22) of the hub ring (1), of the outer joint member of the constant velocity universal joint (3) is integrated with a hub ring (1) via a depression / projection fitting structure (M). In the depression / projection fitting structure (M), the entire part of a portion (38) of a projection (35), which portion is to be fitted to a depression, is in intimate contact with a corresponding depression section (36).

The invention relates to the field of photovoltaic production equipment, and provides a conveying machine table connecting device. The device comprises a push-pull mechanism, a roll shaft and a switch; the push-pull mechanism is provided with a guide block and a sliding rail, the guide block is arranged on any conveying machine table and used for providing a mounting site for the sliding rail, and the sliding rail is arranged on the guide block in a sliding mode in the conveying direction of an assembly line so as to connect two adjacent conveying machine tables or avoid a channel between the two adjacent conveying machine tables; the roller shaft is erected on the sliding rail, and the conveying direction of the roller shaft is the same as the conveying direction of the assembly line, so that materials are continuously conveyed between the two adjacent conveying machine tables; and the switch is used for controlling shutdown or operation of the assembly line according to the position of the sliding rail. The device is small in occupied space, convenient to operate and good in connection effect.

The invention relates to the technical field of track traffic tunnel ballast beds, in particular to a track traffic shield tunnel ballast bed connection reinforcing device and an application method thereof. The connection reinforcing device comprises a connecting rod and a connector, one end of the connecting rod is a hook part matched with a steel bar of a ballast bed, the other end of the connecting rod is connected with the connector, the connector can be fixedly connected with a hand hole of the shield tunnel segment, and reinforced connection between the ballast bed and the shield tunnel segment is achieved. The device has the advantages that reinforced connection between the track bed and the shield tunnel segment of the track traffic is achieved, and the connection performance and integrity between the track bed and the shield tunnel segment are improved on the basis that the tunnel segment structure is not damaged; a certain buffer adjustment amount can be formed between the ballast bed and the shield tunnel segment, the adaptability during operation is high, and potential safety hazards caused by disengagement between the ballast bed and the shield tunnel segment are avoided; and construction is convenient, installation is fast, and popularization is facilitated.

The invention discloses a concrete silo top plate structure and a construction method thereof. The concrete silo top plate structure comprises a silo wall and a top plate. The top plate comprises a prefabricated lower part, a cast-in-situ upper part and a top plate supporting bracket. The prefabricated lower part is a fabricated plate, and the cast-in-situ upper part is a cast-in-situ layer pavedwith a reinforcing mesh. The cast-in-situ upper part and the prefabricated lower part form the top plate jointly, and the top plate supporting bracket and the surface of the upper side of the silo wall are flush. The silo wall and the surface of the upper side of the top plate supporting bracket form a lap-joint plane jointly, and the lap-joint plane comprises lap-joint areas and connecting areas.The two ends of the prefabricated lower part are connected to the lap-joint areas on the two sides in a lapped mode, and the parts, making contact with the bracket, in the lap-joint areas are fixed through bonding layers. The upper side of the prefabricated lower part is covered with concrete of the cast-in-situ upper part, and the upper sides of the connecting areas are filled with the concreteof the cast-in-situ upper part. According to the solving scheme, the construction process of the silo top plate is simplified, the construction procedure is accelerated, the construction cost is reduced, a superimposing mode of the prefabricated plate and in-situ casting is adopted, the characteristic that the construction speed of a prefabricated structure is high is sufficiently utilized, and the construction integrality requirement of the silo top plate is met.

The invention discloses a switch operating mechanism and a circuit breaker. The switch operating mechanism comprises the components of a housing, a driving unit which is arranged in the housing, a transmission gear which is transmissbly connected with the driving unit, a lever which is transmissbily connected with the transmission gear, an energy storage unit which is transmissbly connected with the transmission gear, and a transmission unit which is transmissbly connected with the energy storage unit. The driving unit drives the energy storage unit to rotate for storing energy through making the transmission gear rotate. After the stored energy of the energy storage unit is reached, the stored energy is released, thereby driving the transmission unit to rotate. The transmission unit makes a circuit breaker body handle rotate in a switching-on direction for making the circuit breaker body perform switching on. The driving unit drives the energy storage unit to reset through driving the transmission gear to rotate reversely. After the energy storage unit is reset, the driving unit continuously performs reversal rotation and drives a lever to rotate, and the lever compresses a limiting member so that the circuit breaker body is released and inhibits switching-on of the circuit breaker body. The switch operating mechanism and the circuit breaker can be used for automatic switching-on and releasing operations of the circuit breaker body and furthermore has high reliability and high safety.

The invention discloses a flame-retardant and antibacterial fabric. The flame-retardant and antibacterial fabric is obtained in a manner that a grey fabric is padded in flame-retardant treating fluidand antibacterial treating fluid; the grey fabric is prepared by blending and weaving 30-40 parts by weight of an aramid fiber, 10-20 parts by weight of a tetrafluoroethylene-hexafluoropropylene copolymer fiber, 6-8 parts by weight of a polyphenylsulfone amide fiber and 3-7 parts by weight of a polyisophthaloyl metaphenylene diamine fiber. According to the flame-retardant and antibacterial fabric,the compatibility of the flame-retardant treating fluid and the antibacterial treating fluid of the fabric is conducted, the synergistic promotion effect between the antibacterial treating fluid andmoisture-absorption and sweat-releasing finishing fluid is achieved, and the prepared fabric has the excellent flame retardant property and antibacterial property, and the wearing comfort is improved.

The invention discloses a preparation method of fish meat sausages delicious in flavor, good in gel coagulation properties and high in elasticity. The preparation method comprises the following steps of weighing the following raw material components of surimi, pig fat meat, water, table salt, monosodium glutamate, white granulated sugar, ginger powder, garlic powder, five spice powder, sodium nitrite, chicken meat essence, a fishbone extract, a licorice root extract, tea polyphenols and pig blood protein powder; mixing the surimi with the pig fat meat so as to obtain mixed meat paste; adding water, performing low-speed chopping, then adding the ginger powder, the garlic powder, the five spice powder and the nitrite, and performing high-speeding chopping so as to obtain emulsified meat paste; adding the fishbone extract and the pig blood protein powder to the emulsified meat paste, performing a stirring reaction, and then performing standing treatment so as to obtain reaction meat paste; and mixing the reaction meat paste with the table salt, the monosodium glutamate, the white granulated sugar, the chicken meat essence, the licorice root extract and the tea polyphenols to obtain seasoning meat paste, using small intestines or duodenum of animals as sausage casings, using the seasoning meat paste as fillings, and performing filling so as to obtain the fish meat sausages. The fish meat sausages prepared by the preparation method disclosed by the invention have the characteristics of being good in elasticity, good in chewiness, safe and reliable, free from health hidden danger and delicious in taste.

The invention relates to the technical field of a control cabinet and especially relates to a GCS low-voltage draw-out type switchgear. The GCS low-voltage draw-out type switchgear comprises a power source incoming cabinet, a PC feed line cabinet and an MCC feed line cabinet. The power source incoming cabinet comprises a first cabinet body. The back portion of the first cabinet body is provided with a first cable cavity. The beneficial effects are that the GCS low-voltage draw-out type switchgear is good in breaking capacity and connecting performance and convenient to maintain; besides, buses are in cabinet-back horizontally-arranged distribution to enhance anti-electrodynamic force capability of the buses, and a main circuit of the device is allowed to have high short-circuit strength capability; and the GCS low-voltage draw-out type switchgear is simple in structure, convenient to assemble and disassemble and very high in practicality.

The invention discloses a method for preparing a moisture-absorbing and sweat-wicking antibacterial fabric, which comprises the following steps: soaking gray cloth with an antibacterial treatment solution and a moisture-wicking finishing solution to obtain a moisture-wicking and antibacterial fabric; the gray fabric is blended with the following raw materials in parts by weight Weaving: 12-14 parts by weight of Coolmax fiber; 40-50 parts by weight of regenerated cellulose fiber; 6-8 parts by weight of polyacrylonitrile fiber. In the present invention, the antibacterial treatment liquid is compatible with the moisture absorption and perspiration finishing liquid of specific composition and content, and there is a synergistic promotion effect between the antibacterial treatment liquid and the moisture absorption and perspiration finishing liquid, so that the prepared fabric has moisture absorption and perspiration antibacterial performance, and improves wearing comfort.

The invention discloses a flexible array substrate, comprising a flexible substrate and a buffer layer on the flexible substrate, a plurality of thin film transistors are arranged in an array on the buffer layer, an interlayer dielectric layer is arranged on the thin film transistors, and the interlayer A dielectric layer covers the buffer layer; wherein, an interconnection structure is provided between the interlayer dielectric layer and the buffer layer, and at least one interconnection structure is respectively provided on both sides of each column of the thin film transistors, so The interconnecting structure member extends in a direction parallel to the bending axis of the flexible array substrate. The present invention also discloses the above-mentioned preparation method of the flexible array substrate and a flexible display device including the flexible array substrate. The invention enhances the connection performance of the interconnection structure layer in the flexible array substrate by arranging the interconnection structure member, improves the problem of peeling or cracking of the interconnection structure layer, and improves the quality of the flexible array substrate.

The invention relates to an optical fiber end face processing method and an optical fiber connector. The method includes the steps of S1, penetrating an optical fiber through an insert core of the connector; S2, positioning length of one end, extending out of the insert core, of the optical fiber to form an extending end of the optical fiber; S3, inserting the extending end into a grinding groove of a grinder, using a grinding face of the grinding groove to abut the end face of the extending end to allow the end face to be in contact with the grinding face; S4, rotating the grinder, and grinding the end face of the extending end through the grinding face; wherein the length of the extending end is larger than the depth of the grinding groove. By the method, the problem of bad optical fiber end face cutting is solved, fully contact of optical fiber end faces is facilitated, return loss of the optical fiber connector is reduced, and insertion loss of the optical fiber connector is reduced.

The invention discloses a corner laser device and a fastener positioning device thereof. The fastener positioning device comprises an angle adjusting device and a fastener fixing clamp, the angle adjusting device comprises a supporting frame and an arc-shaped sliding way arranged on the supporting frame, the fastener fixing clamp comprises a connecting rod with one end installed on the arc-shapedsliding way and a die head arranged at the other end of the connecting rod and used for being clamped into a fastener hole, the connecting rod can slide along the arc-shaped sliding way and generate plane rotation in the sliding process, the extending-out direction of the die head is parallel to the rotating plane of the connecting rod, in other words, a fastener can be driven to rotate when the connecting rod slides, and the corner laser effect can be achieved within the rotating scope; when corner laser patterns need to be manufactured, the fastener is fixed through the die head, then the corner effect of the patterns needing to be subjected to laser is used for adjusting the position of the fastener fixing clamp on the angle adjusting device, a laser machine is started for conducting laser on the front face and the side face of the fastener, the laser efficiency is high, the patterns on the front and side faces are good in joining effect, and the product uniformity is good.