4results about How to "Control up and down movement" patented technology

This utility model discloses a feeding device for a folding machine, comprising a base frame and a side plate. A first feeding roller, a second feeding roller, a third feeding roller, and a fourth feeding roller are sequentially arranged on the side of the side plate. These four feeding rollers are rotatably connected to the side plate. An adjustment assembly is provided on the side of the side plate. The adjustment assembly includes a base fixed to the base frame, an electric cylinder mounted on the base, and a connecting rod connected to the electric cylinder. A fastening block is fixed to the side of the side plate. A transmission roller passes through the side plate and extends to the outside of the side plate. By setting the adjustment assembly, the up-and-down movement of the transmission roller can be precisely controlled. The electric cylinder drives the connecting rod, thereby adjusting the transmission roller and the blocking plate, thus adjusting the distance between the blocking plate and the pressure plate, and thus conveying papers of different thicknesses.

The invention discloses an ophthalmologic operation auxiliary cold compress device, and relates to the technical field of eye cold compress devices. Comprising a mounting base, an annular cotton cushion is detachably mounted at the bottom of the mounting base through a detachable connecting piece, and a containing cavity is formed in the annular cotton cushion and can be used for containing ice bags and the like; the elastic limiting ropes are arranged on the two sides of the opening of the containing cavity; the bottom of the connecting rope is fixed to the elastic limiting rope, and the top of the connecting rope penetrates through the mounting base and then is connected with an adjusting part. By arranging the mounting seat, the annular cotton pad and other structures, an ice bag for cold compress can be placed in the containing cavity for cold compress treatment, and on the premise that cold compress is met, the annular cotton pad can play a role in protecting eyes; in addition, due to the adoption of the annular structure, the ice bag is prevented from directly contacting with the eyes, the ice bag can be prevented from falling off as much as possible, and installation is convenient.

The utility model relates to the technical field of jam processing, and discloses a processing pretreatment device for jam production, which comprises a groove frame, the bottom of the groove frame is fixedly connected with a fixed block I, the bottom of the fixed block I is provided with a lifting assembly, the outside of the lifting assembly is provided with fixed legs, and the fixed legs are fixedly connected with the groove frame. And a transmission assembly is installed on the outer side of the fixed leg, the lifting assembly comprises a telescopic leg, the telescopic leg is rotationally connected to the outer side of the first fixed block, and a threaded rod is in threaded connection with the interior of the telescopic leg. According to the device, the first motor is started to drive the first rotating shaft to rotate, drive the second bevel gears fixedly connected to the two ends to rotate, drive the first bevel gears connected in a meshed mode to rotate and drive the screw to rotate, and therefore the telescopic leg is controlled to move up and down, and the moving telescopic leg lifts one side of the groove frame; the mangoes are prevented from being stacked between the brush rollers due to irregular appearance during cleaning, and the working efficiency is improved.

This utility model relates to the technical field of wire-filling devices, and discloses a high-efficiency carbon brush wire-filling device, including a mounting plate and a cylinder. The cylinder is equipped with a wire-filling mechanism for continuous wire filling. The wire-filling mechanism includes a striking piston rod, which is slidably connected to the cylinder. The cylinder has an upper air inlet, and an upper connecting pipe for connecting to an air injection device is installed on the upper air inlet. An upper solenoid valve for controlling the air intake and exhaust is installed on the upper connecting pipe. In this utility model, the air supply in and out of the cylinder is controlled by the upper and lower solenoid valves, thereby controlling the up-and-down movement of the striking piston rod. Simultaneously, the pressure inside the cylinder can be adjusted to control the impact force of the striking piston rod, thus controlling the striking force of the striking piston rod. This reduces the likelihood of carbon brush cracking and increases pull-out force.