50results about How to "Prevent breakage etc." patented technology

The invention discloses a multi-degree-of-freedom mechanical hand for transferring a flexible film. The mechanical hand comprises a pickup unit, an alpha rotating module, a gamma rotating module, an XYZ triaxial translation module, an air path distribution unit and a visual positioning unit, wherein the pickup unit has a beta rotating degree of freedom for rotation around the Y axis, and can be used for axially and circumferentially regulating a suction area; the alpha and gamma rotating modules and the XYZ triaxial translation module are used for achieving the alpha and gamma rotating degrees of freedom for the rotation of the mechanical hand around the X axis and the Z axis and a degree of freedom for translation in three directions X, Y and Z; the air path distribution unit is used for executing the switching control and the vacuum degree detection of each vacuum air path in the pickup unit; the visual positioning unit is used for the position and angle detection of the flexible film in an XY plane and the position detection of the flexible film in the Z axis. According to the mechanical hand, the space attitude, the transfer force and the suction interval of the mechanical hand can be automatically regulated to highly accurately suck and transfer the flexible film according to the characteristics, the size and the position of the flexible film.

A holder (1) has a taper-shaped fitting section (4B) formed in a mounting hole (4), and a front end surface (2B) is set perpendicular to a centerline (O). A cutting head (10) has a taper-shaped mounting section (12) protruding from a rear end surface (11C) perpendicular to the centerline (O) of a cutting blade section (11). The cutting head (10) and the holder (1) are mounted to each other in such a manner that female and male threaded sections (3E, 13) are engaged with each other to thereby fit the mounting section (12) and the fitting section (4B) to each other and to thereby make the front end surface (2B) and the rear end surface (11C) in contact with each other. The inner/outer diameter ratio (d/D1) before the fitting, the inner/outer diameter ratio (d/D1) being the ratio between the inner diameter (d) of the fitting section (4B) and the outer diameter (D1) of the front end of the holder (1), is set to be in the range from 0.5 to 0.8, and the outer diameter expansion ratio ((D2 - D1)/D1 100 (%)) of the difference (D2-D1) between the outer diameter (D2) of the front end of the holder (1) after the fitting and the outer diameter (D1) to the outer diameter (D1) is set to be in the range from 0.022*d/D1-0.003 (%) to 0.33*d/D1-0.06 (%).

The invention discloses a mechanical hand control system for flexible film transferring. The mechanical hand control system for flexible film transferring comprises a multi-degree-of-freedom mechanical hand, a multi-sensor feedback unit and a control unit, wherein the multi-degree-of-freedom mechanical hand is used for transferring a flexible film, the multi-sensor feedback unit comprises a CCD sensor, a laser displacement sensor, a gravity sensor set, a vacuum sensor, a pressure sensor and the like and is used for detecting the multiple state indexes, including the position, the posture, the vacuum degree and the contact force, of the mechanical hand, and the control unit is used for accurately controlling operation in the whole transferring process conducted by the mechanical hand based on the information of the multi-sensor feedback unit and adjusting the sucking area of a working section of a pickup head flexibly. By the adoption of the mechanical hand control system for flexible film transferring, the posture of the pickup head can be adjusted automatically according to the dimension and position of the flexible film, the flexible film can be picked up and placed down accurately in a sucked mode, and good contact and transferring of flexible films can be guaranteed.

The invention discloses a crushing system for a cement pavement resonance crusher. The crushing system comprises a shock excitation system, a counter-force device and a supporting frame. The shock excitation system comprises a shock exciter, a crushing hammer, a driving system and at least one nitrogen explosion device, wherein the nitrogen explosion devices are arranged above the shock exciter, and plungers of the nitrogen explosion devices are fixedly connected with a shock excitation box of the shock exciter. The shock excitation system is arranged in the supporting frame, and the nitrogen explosion devices of the shock excitation system are fixedly connected with the supporting frame. The upper end of the crushing hammer is fixedly connected with the bottom of the shock excitation box, and the lower end of the crushing hammer penetrates through the bottom of the supporting frame. The driving system is used for providing power for the shock exciter. The counter-force device is arranged above the supporting frame. The supporting frame is fixedly connected to a rack of the resonance crusher. Exciting force of the shock exciter directly acts on a cement pavement, energy loss in the exciting force transmission process is greatly lowered, the energy utilization rate is increased, the crushing capacity is enhanced, and the structure is more compact.

The invention discloses a dry method automobile acoustic absorption roof. The roof is prepared from a roof blank plate through postprocessing forming. The roof blank plate is composed of five layers of plate structures, wherein the first plate layer is prepared from glass fibers and polyethylene adhesive powder with the weight ratio being 2-2.5 to 1; the second plate layer is made from modified expanded polystyrene; the third plate layer is prepared from fiberglass modified polyethylene adhesive powder; the fourth plate layer is prepared from modified expanded polystyrene; and the fifth plate layer is prepared through glass fibers and polyethylene adhesive powder with the weight ratio being 2-2.5 to 1. Through the dry method automobile acoustic absorption roof, the weight of the dry method roof is lowered, the product lightweight is achieved, and the NVH acoustic absorption performance of the roof can be improved.

A wool opening and mixing technology in a cashmere carding process comprises the following steps of S1, uniformly laying up water-washed cashmere with 8-10 centimeters for every layer, uniformly spraying oil-water mixed liquid of 0.07-0.08% on every layer for 10-15 minutes; S2, performing muffled storage on the moisturized water-washed cashmere for 12-24 hours in summer or 12-48 hours in winter; S3, performing opening treatment on the muffled water-washed cashmere through an opening machine to open the cashmere into a fluffy state, feeding the cashmere at a feeding quantity of 200-300 kilograms per hour and a thickness not thicker than 6-10 centimeters; S4, detecting the opened water-washed cashmere and remoisturizing the water-washed cashmere with a machinery moisturizing rate of 24-28%, and counting the water feeding amount during the remoisturizing process. According to the wool opening and mixing technology in the cashmere carding process, by adding mixing oil, the static friction coefficient as well as the dynamic friction coefficient among fiber can be adjusted, the friction force between the fiber and guide rollers can be reduced and static electricity caused by friction during the carding process can be avoided and eliminated, so the wool fiber can smoothly pass through a carding device to avoid wool loosening, winding, fiber breakage and the like.

The invention discloses a safe breaking-preventing screw tap chuck which comprises a chuck body and further comprises a screw tap sleeve, a supporting arm and a telescopic tightening screw. A tap sleeve fixing groove is formed in a middle shaft of the front portion of the chuck body. A longitudinal tightening thread hole is formed in the upper side wall and the lower side wall of the tap sleeve fixing groove. The telescopic tightening screw comprises a screw body. The screw tap sleeve is provided with a screw tap fixing groove. The screw tap sleeve is distributed in the tap sleeve fixing groove and tightened and fixed through the telescopic tightening screw by means of the tightening thread hole. The supporting arm comprises a supporting arm body which is approximately shaped like the Arabic number seven and distributed on the left side and the right side of the front portion of the chuck body. The left lower end of the supporting arm body makes contact with a handle portion of a screwtap in an extruding manner. The safe breaking-preventing screw tap chuck has a good effect of fastening the screw tap, the screw tap is replaced conveniently, and breaking of the screw tap is effectively prevented.

The invention relates to a polyethylene glycol-polycaprolactone phase change fiber and a preparation method thereof, and belongs to the field of phase change nanofiber materials. The fiber is of a core-shell structure, polyethylene glycol serves as a core layer, polycaprolactone serves as a shell layer, the weight-average molecular weight of polyethylene glycol is 1000, and the weight-average molecular weight of polycaprolactone is 80000; and based on 100% of the mass of the fiber, the mass fraction of polyethylene glycol is 21%-48%, and the mass fraction of polycaprolactone is 52%-79%. According to the method, a polyethylene glycol spinning solution is used as an inner tube spinning solution, a polycaprolactone spinning solution is used as an outer tube spinning solution, coaxial electrostatic spinning is performed, and the phase-change fiber is obtained after a solvent is removed. The phase-change fiber shows a complete core-shell structure, has the characteristics of two raw material, has excellent thermal properties and mechanical properties, can adjust the temperature within a certain range, and is environmentally friendly and biodegradable; and the phase-change fiber can be applied to the field of medical phase-change materials and the field of functional textile materials.

The invention discloses a pipe baking device used for pipeline construction. The pipe baking device comprises a pipe bending device and a limiting device; the pipe bending device comprises an assemblybase and a pipe bender; the pipe bender comprises a bottom supporting plate, side supporting plates and a rotation mechanism; a rotary shaft is connected between the side supporting plates; rotary discs are fixedly arranged on two sides of the rotary shaft; the rotary discs sleeve the rotary shaft; one side of the rotary shaft is connected to a rotary handle; the rotary handle is arranged on theouter side of the corresponding side supporting plate; a positioning plate is arranged between the two rotary discs; a node component is arranged on the positioning plate; the limiting device comprises an upper limiting component and a lower limiting component; and an upward pipe bender is arranged on the upper limiting component. By adopting the pipe baking device, bending degrees with two opposite directions and different angles can be manufactured at the same time according to needs; and the pipe bending effect of long pipelines and short pipelines can be realized by adjusting the positionof the limiting device; the integral structure is more firm and stable.

The invention provides a powder material for coating a high-wear-resistance automobile hub, relating to the technical field of the machining and production of automobile hubs. The powder material contains the following components in percentage by weight (100% in total): 28%-33% of epoxy resin, 30%-34% of modified carboxyl-terminated saturated polyester resin, 0.5%-0.7% of a curing agent, 20%-25% of wear-resisting powder, 5%-10% of titanium dioxide, 5%-7% of quartz powder and 0.8%-1% of a flatting agent. According to the powder material, the adhesion force between a coating and the hub is enhanced, so that the wear resistance, smoothness and glossiness of the hub are improved.

A surface treatment method used for titanium molecule fission of a titanium product is disclosed. The method includes (1) a step of polishing the titanium product and removing oil stains; (2) a step of putting the polished titanium product into a vacuum heat treatment furnace and maintaining a negative pressure of 8-10 Pa; and (3) a step of raising the temperature in the vacuum heat treatment furnace to 1000-1500 DEG C, maintaining the temperature for 1-5 h, then decreasing the high temperature in a range of 1000-1500 DEG C to 100-500 DEG C, feeding air into the furnace, maintaining the temperature for 0.5-4 h and opening the furnace. According to the method, impurities in the titanium product are removed through high temperature so that environment protection environments are met and application safety is high. After treatment, polishing lines and welding lines are absent, hand lines are not attached to the product, product scratches, dropping breakage, and the like are prevented, color is unified and free of color differences, surfaces are flat, smooth and beautiful, surface hardness of the titanium product is increased, and the overall performance of the product is improved.

The invention is suitable for the technical field of 3D printing and provides a material mixing and conveying device for 3D printing. The material mixing and conveying device for 3D printing comprisesa guide device, a conveying device and a blanking device; the guide device comprises a first inclined track, a second inclined track, a vertical plate and an intermittent device; the intermittent device comprises a fixed plate, a rotating part, an arc-shaped baffle plate and a driving part; the fixed plate is positioned on one side of the second track; the end part of the arc-shaped baffle plateis movably arranged in a rod-shaped track; the blanking device comprises a shell, a push rod, a guide block, a sliding block and a power rod; the power rod comprises a driving rod and a driven rod; astop column is arranged on the driving rod; a first extension section and a second extension section are arranged on the driven rod; the first extension section is located in the rotation range of thedriving rod; a torsion spring is arranged between the driven rod and a second fixing block; and the end part of the sliding block is fixedly connected with the push rod. Therefore, a material loadercan be guided and transported effectively, the material loader can be moved effectively, the working efficiency is improved, and potential safety hazards are reduced.

The invention discloses a drawing die of a water collector used for an air conditioner. The drawing die comprises an upper die holder and a lower die holder, a lower die plate is arranged on the lower die holder, and a drawing terrace die and a cut-off punch are arranged on the lower die plate, wherein the cut-off punch is located on one side of the drawing terrace die, and the cut-off punch is at least twice as high as the material thickness of the water collector. A slugger punch is arranged in the drawing terrace die in a penetrating mode, and the upper end of the slugger punch is higher than the drawing terrace die and lower than the cut-off punch; an upper die plate is arranged on the upper die holder, a drawing concave die is arranged on the upper die plate, and a punching forming cavity corresponding to the slugger punch is formed in the drawing concave die; a lower supporting plate is arranged below the lower die holder and connected with the lower die holder through pad feet, a stripper plate outside the drawing terrace die is located above the lower die plate, the bottom of the stripper plate is connected with a knock out rod penetrating through the lower die plate, the lower end of the knock out rod is connected with a knock out plate, and an elastic piece is pressed between the knock out plate and the lower supporting plate. The drawing die of the water collector used for the air conditioner is reasonable in structure, and the production efficiency can be effectively improved.

The invention provides a battery, and the battery comprises a shell and a plurality of pole core groups packaged in the shell; the pole core groups are connected in series, each pole core group comprises a packaging film and at least one pole core, and at least one pole core is located in a containing cavity formed by the packaging film in a surrounding mode; a space ring is arranged between the two electrode core groups which are connected in series, a through hole is formed in the space ring, each electrode core group comprises a first electrode and a second electrode, and the first electrode and the second electrode extend out of the packaging film; the first electrode of one of the two electrode core groups which are connected in series is connected with the second electrode of the other electrode core group, and the connecting part is accommodated in the through hole; the space ring comprises a peripheral surface facing the inner surface of the shell, at least one first positioning part is formed on the peripheral surface of the space ring, second positioning parts in one-to-one correspondence with the first positioning parts are formed on the inner surface of the shell, and the first positioning parts are matched with the corresponding second positioning parts to fix the space ring and the shell. Meanwhile, the invention further provides a battery pack and an automobile based on the battery provided by the invention.

The invention discloses a mixed cable sheath accessory. The mixed cable sheath accessory is prepared from the following raw materials in parts by weight: 40 to 50 parts of III-type resin, 35 to 45 parts of PVC (polyvinyl chloride) resin, 5 to 9 parts of filling agent, 6 to 8 parts of solid paraffin, 4 to 6 parts of impact resistant modifier, 3 to 7 parts of sodium iodide, 4 to 6 parts of antioxidant, 10 to 12 parts of vinyl trimethoxy silane, and 8 to 10 parts of lubricant. The mixed cable sheath accessory has the performances of good anticorrosion effect, resistance to stretch and oxidation and the like.

The invention provides an exhaust temperature sensor and a manufacturing method of the exhaust temperature sensor, and belongs to the technical field of automobile vibration reduction equipment. The exhaust temperature sensor comprises a bushing, a temperature measurement assembly and a vibration reduction assembly, wherein the bushing includes a shell and a core wire, the shell is provided with a first end and a second end in the length direction, one end of the core wire is located in the shell, the other end of the core wire penetrates through the second end and is located outside the shell, the temperature measurement assembly is used for measuring the exhaust temperature, and is arranged at the first end and electrically connected with the core wire, the vibration reduction assembly comprises a resonance suppression pipe and an adapter nut, the resonance suppression pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected, a buffering cavity is formed between the second pipe section and the shell, the first pipe section is connected to the shell in a sleeving mode, the third pipe section is connected to the second end in a sleeving mode and fixedly connected with the shell, and the adapter nut is fixedly connected to the outer wall of the second pipe section in a sleeving mode. The exhaust temperature sensor can improve the vibration resistance and prolong the service life.

The invention discloses a hot melting apparatus. The apparatus comprises a frame, a hot melting part is fixedly mounted at the top of the frame, the hot melting part comprises a lower cold mold and anupper cold mold, a hydraulic cylinder is arranged between the lower cold mold and the upper cold mold, a cylinder is arranged at the top of the upper cold mold, the cylinder penetrates through the upper cold mold and extends into the upper cold mold, the bottom of the cylinder is fixedly connected with an upper hot mold, the lower cold mold is fixedly connected with a lower hot mold, a material feeding device is arranged at the top of the hot melting part, the material feeding device penetrates through the hot melting part and extends into the hot melting part, the top of the frame is fixedlyconnected with transmission tables located at two sides of the hot melting part, mounting grooves are arranged in the top of every transmission table, and the inner wall of every mounting groove is rotatably connected with a transmission wheel. The problem of the influences of easy fracture of the loosely-connected connecting position of just hot melting connected PVC plates during unloading on the working efficiency is solved in the invention.

The invention relates to a network cable, especially a Cat-5e shielded network cable, and belongs to the technical field of network circuit design. The Cat-5e shielded network cable comprises a protective sleeve, a tension wire and four pairs of windings, wherein the tension wire and the four pairs of windings are arranged in the protective sleeve. The Cat-5e shielded network cable is characterized in that the protective sleeve includes a polyester film, an aluminum foil layer, a copper braided net and a PVC sheath from inside to outside successively, each winding is formed by twisting two cores, and each core comprises a conductor and an inner sheath wrapping the conductor. The Cat-5e shielded network cable is reasonable and simple in structure and easy to product and manufacture; and according to the invention, a present network cable is improved, and during use, the network cable of such structure can play a good network shielding function, signal attenuation can be shielded to largest degree, and signal transmission is more stabilizer and rapid.