5results about How to "Stable feed rate" patented technology

The utility model discloses uniform plasticizing extrusion equipment for plastic particles, which relates to the technical field of plastic processing and comprises a base, a plastic extruder body is fixedly mounted at the top end of the base, a blanking barrel is fixedly mounted at the top end of the plastic extruder body, and a support plate is fixedly connected to the top end of the blanking barrel. A second motor is fixedly mounted at the top end of the supporting plate, the output end of the second motor rotationally penetrates through the lower portion of the supporting plate and is fixedly connected with a rotating column, a mounting groove is formed in the bottom end of the rotating column, and plastic particles about to fall into the discharging opening are further stirred and dispersed through a cross stirring rod, so that the liquidity of the plastic particles is guaranteed; according to the extrusion equipment disclosed by the invention, plastic particles are prevented from being blocked easily when passing through the interior of the discharging opening, so that the feeding speed of the plastic particles is stable, the filling amount of the plastic particles in the extrusion machine is uniform, the extrusion equipment can be uniformly plasticized and extruded, and the practicability of the extrusion equipment is further improved.

This invention discloses a fully automatic linear control busbar bonding structure and method. The structure includes: a bonding pressure roller, a take-up roll, and a release roll mounted on a substrate; multiple reversing rollers on the substrate for adjusting the direction of the material roll / strip; a release roll for holding the material roll / strip; one end of the material roll / strip connecting to the take-up roll after passing through the multiple reversing rollers and the bonding pressure roller; the bonding pressure roller for pressing the material roll / strip closer to the electronic board; and a control module connected to a tension adjustment mechanism, a take-up motor, and a release motor, capable of adjusting the speeds of the take-up motor and the release motor. This fully automatic linear control busbar bonding structure utilizes the independent rotation of the take-up roll and the release roll to uniformly wind the material roll / strip onto the take-up roll. During the conveying process, the angle and position of the material roll / strip are adjusted by the multiple reversing rollers, facilitating the bonding pressure roller to bond the material roll / strip to the electronic board, ensuring high efficiency and high quality in busbar installation on the electronic board.

The invention relates to the field of nitric acid production, and discloses an AR-grade nitric acid rectification device and a preparation method, the device comprises a liquid inlet pipeline, a heat exchanger, a large rectification kettle, a small rectification kettle, a first packed tower, a second packed tower, a primary cooling system, a third packed tower, a secondary cooling system and a liquid outlet pipeline from top to bottom, the steam of the large rectifying still supplies energy to the small rectifying still, and the steam of the small rectifying still preheats raw materials to realize graded utilization of waste heat; the liquid inlet pipeline is provided with a buffer tank for stable feeding, the packed towers cooperate with reflux to strengthen impurity removal, and air is introduced into the third packed tower to remove nitrogen oxide; the secondary cooling system adopts an inclined tube type heat exchanger with a pressure stabilizing pipeline, so that bubble retention is avoided. The device is low in energy consumption, stable in feeding, capable of effectively controlling the impurity content of nitric acid, capable of meeting the AR-grade standard and guaranteeing production continuity and suitable for preparing high-purity nitric acid.

The invention discloses a desert tree planting drilling method and system for a complex sand environment, and belongs to the technical field of desert tree planting drilling. And driving the module motor, descending the drill bit from the calibrated zero point position to the first pause point, and stabilizing the drill bit at the same time. Punching is started; and an electric drill motor is started to drive the drill bit to rotate for punching, and when the drill bit drills to the target depth, the drill bit stays at the target depth and rotates to discharge sand and trim the hole wall. After punching is completed, the module motor is driven, and the drill bit retreats; and when the drill bit ascends, the drill bit firstly retreats to a second pause point at the working rotating speed, the distance between the second pause point and the hole bottom is 10-15 cm, the drill bit stays at the second pause point and rotates, then the electric drill motor is closed, and the drill bit is returned to the initial position. According to the method, the rotating speed of the drill bit is dynamically controlled based on the index-linear mixed rotating speed control model, the stable and controllable feeding speed of the drill bit is provided, and good practicability is achieved.

The application discloses a raw material crushing device with an adjusting function, relates to the technical field of medicine raw material processing, and comprises a machine table, a crushing cylinder, a crushing unit and an adjusting unit, wherein the machine table is used for mounting and fixing the crushing cylinder, the crushing cylinder is used for mounting and fixing the crushing unit and the adjusting unit, the crushing unit is used for primary crushing of raw materials and prevention of material blockage, and the adjusting unit is used for self-adaptive adjustment of the size of the particle diameter of the raw materials. When the raw materials enter the crushing cylinder from the feeding port of the crushing cylinder, the raw materials are initially crushed through the crushing unit, the crushed raw materials are prevented from being blocked and affecting the discharging, and the crushing efficiency is improved. When the raw materials after the primary crushing enter the adjusting unit, the raw materials are secondarily crushed through the adjusting unit, the particle diameter of the raw materials is automatically and dynamically adjusted and controlled, and it is ensured that the crushing particle diameter always meets the requirements.