13results about How to "Change elasticity" patented technology

The utility model relates to the technical field of glass coating, and provides a rapid glass coating device which comprises a conveying mechanism, a coating mechanism, a cleaning mechanism, a drying mechanism, a spray head, a brush mechanism, a water retaining curtain, a water scraper and a water circulating device. By means of the technical scheme, the glass cleaning effect is improved, and therefore the coating quality is guaranteed.

A stamping die for a metal can with an elastic bottom includes a first die for punching and stretching a stamped object, a second die for re-stretching (or multiple stretching) the stamped object, a third die for forming the bottom of the stamped object, a fourth die for expanding the diameter of the can mouth of the stamped object and re-forming the bottom, and a fifth die for trimming the stamped object. The third die of the present invention can prevent the edge of the mouth of the stamped object from being squeezed and deformed when the bottom ring groove is stamped through the air-avoiding groove, thereby making a prerequisite for realizing elastic deformation of the bottom. The fourth die can expand the diameter of the metal can mouth through the coordination of the diameter expansion groove and the lower diameter expansion die, so that the can mouth is further expanded. At the same time, after the bottom ring groove is stamped twice, the local strength and durability of the bottom stress area can be changed. In the process of expanding the diameter, a pulling force will also be generated on the bottom of the metal can, so that the bottom is adjusted in micro-distance, thereby changing the elasticity of the bottom, causing it to produce elastic deformation, so that it has resilience.

The invention discloses potato breeder seed grading and screening equipment with a flow dividing structure, and relates to the technical field of potato breeder seed screening, the potato breeder seed grading and screening equipment comprises a base, the base is used for stably placing a grading and screening component, and a lifting frame is fixedly mounted on one side of the outer surface of the base; and the guiding and conveying assembly is used for screening and guiding the potato stock seeds. According to the potato breeder seed grading and screening equipment with the flow dividing structure, down-sliding potato breeder seeds make contact with the buffering assembly and drive the buffering assembly to rotate downwards on the surface of the rotating rod, so that the buffering assembly rotates to make contact with the inner wall of the baffle, the vibrator is arranged on the outer side of the baffle, and when the buffering assembly guides and conveys the potato breeder seeds, the buffering assembly is driven to rotate downwards; the multiple buffer assemblies are extruded by the potato breeder seeds and vibrated by the vibrator to be in different-frequency swing states, and compared with a traditional material guiding mode for conducting flow dividing and material guiding on the potato breeder seeds, the mobility of the potato breeder seeds during sliding down is accelerated, and blockage during material guiding of the potato breeder seeds is avoided.

The invention relates to the technical field of printing films, in particular to a PET electronic tag printing film and a preparation method thereof.The preparation method comprises the following steps that S1, heat-resistant low-shrinkage functional master batch A is prepared, specifically, organic-inorganic hybrid functional powder P1 with an epoxy functional group is synthesized firstly, then the functional powder P1 and polyester chips are evenly mixed and extruded through a screw extruder, and the heat-resistant low-shrinkage functional master batch A is obtained; granulating to obtain a heat-resistant low-shrinkage functional master batch A; s2, preparation of the PET electronic tag film: mixing the functional master batch A, the opening master batch B and the polyester chips, and preparing the heat-resistant low-shrinkage PET electronic tag film by using a two-way stretching process; s3, preparing a water-based functional pre-coating layer; and S4, preparation of the PET electronic tag printing film: diluting the prepared water-based functional pre-coating glue, coating the water-based functional pre-coating glue on the PET electronic tag film prepared in the step S2, and drying to obtain the PET electronic tag printing film. According to the preparation method disclosed by the invention, the PET is modified by adopting a nano silicon dioxide in-situ copolymerized acrylic resin material with an epoxy functional group to improve the heat resistance and the heat shrinkage rate at high temperature.

This invention relates to the field of trampoline technology, specifically to an adjustable spring-loaded trampoline and its elasticity adjustment method. The adjustable spring-loaded trampoline includes a support frame; it also includes: a first spring assembly comprising multiple first spring plates connected at their tails; an elasticity adjustment assembly comprising multiple second spring plates connected at their tails; a limiting assembly for limiting the height of a fixed post; and the second elasticity adjustment assembly for adjusting the initial elasticity of the trampoline. In this invention, rotating the adjusting bolt causes the slider to move up and down, deforming the second spring plates and thus changing their elasticity, thereby altering the trampoline's elasticity. This allows for adaptation to different user requirements regarding elasticity. When the second spring plate's elasticity is insufficient, a servo motor can drive a sliding disc to move up and down, compressing or releasing the adjusting spring, thereby changing the initial elasticity of the adjusting spring and thus adjusting the trampoline's elasticity.

The utility model discloses a kind of elastic adjusting devices of cloth press wheel of open width machine, it is related to cloth press wheel adjusting technical field.The utility model includes adjusting mechanism and open width machine, adjusting mechanism front is provided with winding mechanism, the left side and right side of open width machine are fixedly connected with protective box, motor one is fixedly connected at the top of protective box in right side, the bottom output end of motor one is fixedly connected with threaded rod by coupling.The utility model is through setting press wheel, specifically is motor one start driving threaded rod to rotate, then again by threaded rod rotation to drive moving plate to move downward, since the press wheel at this time will be subjected to the tension of cloth, so that press wheel moves upward, so when moving plate moves downward, spring is extruded, so that the elasticity of spring changes, and press wheel moves, so that cloth bottom and lower press wheel, avoid the situation of skidding.

This invention provides an underwater bistable variable stiffness rigid-flexible coupled hydraulic mechanical gripper, belonging to the technical field of robot end effectors. This manipulator combines flexible fit with gripping stiffness and offers a fast response speed. The drive module, finger modules, transmission module, and variable stiffness module are all mounted on a support module. The output of the drive module is connected to each finger module via the transmission module, and the output of the variable stiffness module is connected to each finger module via the bistable module. The drive module's operation drives multiple finger modules to perform gripping actions through the transmission module, while the variable stiffness module's operation adjusts the structural stiffness of multiple finger modules through the bistable module. This mechanical gripper integrates the lossless compliance of soft actuation, the high-speed response of a bistable mechanism, and the strong load-bearing capacity of a rigid structure. It can stably grip objects of different masses and shapes in underwater environments, exhibiting strong adaptability and high operational efficiency.

This utility model discloses an adjustable normally closed electromagnetic expansion valve, including a valve body, a transmission rod assembly, a valve core assembly, and a steel ball seat assembly. The valve body is provided with a flow channel 1, a flow channel 2, a flow channel 3, and a valve cavity. Flow channel 2 and flow channel 3 are located on both sides of the valve cavity. The valve body is also provided with a longitudinally arranged transmission cavity and an adjustment cavity. The steel ball seat assembly is fixed in the adjustment cavity, the transmission rod assembly is installed in the transmission cavity, and the steel ball seat assembly is fixed in the adjustment cavity. The steel ball seat assembly includes a connecting block, an adjusting screw, an adjusting spring, a steel ball seat, and a steel ball. The diameter of the steel ball is larger than the diameter of the valve cavity. The adjusting screw is threadedly connected to the connecting block, and one end of the adjusting screw passes through the connecting block and abuts against the lower end of the adjusting spring. This utility model has a reasonable structure. By changing the length of the adjusting block inserted into the valve core tube, the position of the moving block can be adjusted, thereby adjusting the opening degree of the valve core assembly.

The utility model discloses a shock absorber spring plate which comprises a spring tray and further comprises a clamping assembly used for achieving detachable connection of the spring tray. Wherein the spring tray is symmetrically divided into a tray body I and a tray body II; the fixing plate is fixedly arranged on the disc body II, and a fixing groove is formed in the side edge of the fixing plate; the movable plate is movably arranged in the disc body I, and a mounting block is arranged on the side edge of the movable plate; the mounting blocks correspond to the fixing grooves in position; the driving piece is used for driving the mounting block to move into the fixing groove; the threaded hole is formed in one side edge of the disc body; the threaded rod movably penetrates through the threaded hole, and the bottom end of the threaded rod is rotatably connected with the movable plate; the threaded hole is in meshed connection with the threaded rod; a plurality of notches are formed in the outer wall of the top of the spring tray, and a through hole is formed in the center of the bottom of the spring tray; the inner wall of the through hole is provided with an internal thread, in daily production and life, the movable plate and the mounting block are pushed to move through the driving piece, disassembly and assembly of the first tray body and the second tray body are achieved, and the spring tray is convenient to disassemble.

The invention discloses a metal can stamping die with an elastic bottom. The metal can stamping die comprises a first-sequence die, a second-sequence die, a third-sequence die, a fourth-sequence die and a fifth-sequence die, wherein the first-sequence die is used for stamping, shearing and stretching a stamped object; the second-sequence die is used for re-stretching (or multi-time stretching) the stamped object, the third-sequence die is used for forming the bottom of the stamped object, the fourth-sequence die is used for expanding a can opening of the stamped object and re-forming the bottom of the stamped object, and the fifth-sequence die is used for trimming the stamped object. According to the third-sequence die, when the bottom annular groove is punched through the receding groove, the edge of an opening of a punched object is not extruded, deformation of the punched object is avoided, and prerequisite preparation is made for bottom elastic deformation. And the fourth sequence die can expand the diameter of the metal can opening through coordination and matching of the diameter expanding groove and the lower diameter expanding die, so that the can opening is further expanded. Meanwhile, after the bottom annular groove is subjected to secondary stamping, the local strength and durability of a bottom stress area can be changed. And in the diameter expanding process, pulling force can also be generated on the bottom of the metal can, so that the bottom is subjected to micro-distance adjustment, the elasticity of the bottom is changed, the bottom is elastically deformed, and resilience force is achieved.

The application discloses a 3D-printed implant with arc-shaped pipelines and a preparation method thereof, which is used for being implanted into an alveolar bone implantation nest of a patient, and the implant comprises a dense core body and a bone bonding part wrapped outside the dense core body; the bone bonding part comprises a first porous part and a second porous part; the first porous part is connected with the top surface of the second porous part; a plurality of arc-shaped pipelines are arranged in the first porous part; the arc-shaped pipelines are provided with openings at two ends and are communicated with the outside through the openings; the arc-shaped pipelines are extended into a cleaning part through the openings to clean the interiors of the arc-shaped pipelines. The interiors of the arc-shaped pipelines can load drugs (such as BMP-2, VEGF, PDGF and the like) to induce the rapid growth of bone tissues. The implant has the characteristics of good strength, matched elastic modulus of the bone bonding part and the patient and easy cleaning. The implant has a wide indication and is suitable for various edentulous patients, especially for the cases of insufficient alveolar bone mass or bone density.

The utility model discloses a tension-adjustable broken yarn automatic detection device which is characterized in that the tension-adjustable broken yarn automatic detection device comprises a shell, a limiting groove is formed in the head of the shell, a sensing groove is formed below the head, an elastic force adjusting block is arranged on the inner lower side of the shell, and an elastic force adjusting structure is arranged at the bottom of the elastic force adjusting block; the device comprises a shell, and further comprises a V-shaped elastic component arranged in the shell, one end of the V-shaped elastic component is connected with a tension transmission piece, the other end of the V-shaped elastic component is connected with an elastic force adjusting block, and a sensing component is arranged at the bottom of the tension transmission piece. The size of the opening of the V-shaped elastic component is adjusted by the elastic adjusting block, so that the elasticity of the V-shaped elastic component is changed, the tension borne by the tension transmission piece connected with the V-shaped elastic component is adjusted, the tension of the broken yarn detection device is adjustable, the broken yarn detection device can adapt to yarns of different types and thicknesses, and the application range is expanded. And the replacement cost of the broken yarn detection device is reduced.

This utility model discloses an electric tricycle, comprising: a frame and a cover rotatably mounted on the front end of its base plate. Buffer mechanisms for assisting the opening and closing of the cover are provided between the inner walls of both sides of the cover and the base plate of the frame. The buffer mechanisms include a gas spring, an annular adjusting plate, and a tension spring. The gas spring and its output piston rod are rotatably mounted on the inner wall of the cover and the end face of the base plate of the frame, respectively, to support the cover. The annular adjusting plate is sleeved outside the gas spring to adjust the tension length and rebound force of the tension spring. The tension spring, surrounding the gas spring, rebounds after being stretched to assist the cover in flipping and closing. The electric tricycle proposed in this application uses a gas spring to push the cover to flip and open on the base plate of the frame. Simultaneously, the tension spring assists in flipping and closing the cover, reducing the force required for the user to flip the cover and avoiding the inconvenience of having to exert effort to close it, making it convenient for elderly or physically weak users.