Abstract: The disclosure provides a digital contactless signing system for the flexible tobacco distribution, which comprises a cigarette store, a vehicle system, a vehicle access system, a database, a historical database, a server, an information entry unit, an information transmission unit, a distribution system, a client terminal and a two-dimensional code information unit, wherein the cigarette store is connected with the vehicle access system connected with the vehicle access system. The disclosure changes paper tickets into network electronic tickets, and adopts two-dimension code scanning to complete a confirmation of the tobacco handing-over between a distributor and a customer, thereby effectively saving expenses of the paper tickets. An error rate of the signing system is extremely low and almost close to zero due to changing the paper tickets to the network electronic tickets, and a whole data accuracy is improved for signing for the cigarette materials.

Abstract: Disclosed is a preparation method for a high-solid acrylic resin, comprising the following steps: preparing acrylic acid or methacrylic acid, an alkyl acrylate or alkyl methacrylate, styrene, hydroxyethyl acrylate or hydroxypropyl acrylate, an acrylate with a bridge ring structure, an initiator, and a solvent; adding the solvent to a reactor, stirring, and increasing the temperature to the boiling point temperature of the solvent; adding the reaction raw materials and the initiator from a dropping funnel and stirring, and after the completion of the addition, maintaining the boiling point temperature of the solvent and continuously stirring; and cooling and discharging after the reaction is finished. The Gardner-Holdt tube viscosity of the prepared acrylic resin is 15-25 S (25° C.), and the solid content is 70%-75%.

Abstract: Disclosed is a preparation method for a high-solid acrylic resin, comprising the following steps: preparing acrylic acid or methacrylic acid, an alkyl acrylate or alkyl methacrylate, styrene, hydroxyethyl acrylate or hydroxypropyl acrylate, an acrylate with a bridge ring structure, an initiator, and a solvent; adding the solvent to a reactor, stirring, and increasing the temperature to the boiling point temperature of the solvent; adding the reaction raw materials and the initiator from a dropping funnel and stirring, and after the completion of the addition, maintaining the boiling point temperature of the solvent and continuously stirring; and cooling and discharging after the reaction is finished. The Gardner-Holdt tube viscosity of the prepared acrylic resin is 15-25 S (25° C.), and the solid content is 70%-75%.

Abstract: A drilling type sidewall coring apparatus, comprising: a main body, a transmission device, a bit mounted on the transmission device, a rack accommodated in the main body, and a plurality of first hydraulic oil cylinders, the transmission device mounted on the rack in a rotatable manner, the first hydraulic oil cylinders mounted on the main body, pistons of the first hydraulic oil cylinders connected with the rack, the telescopic motion of the pistons of the first hydraulic oil cylinders driving the rack to perform radial motion in the main body so as to make the bit protrude or retract from the main body. The electric motor is mounted in the main body and connected with the right angel speed reducer by the soft shaft. The electric motor transmits power by the soft shaft and the right angle speed reducer to drive the bit to rotate, the transmission efficiency is higher.

Abstract: A drilling type sidewall coring apparatus, comprising: a main body, a transmission device, a bit mounted on the transmission device, a rack accommodated in the main body, and a plurality of first hydraulic oil cylinders, the transmission device mounted on the rack in a rotatable manner, the first hydraulic oil cylinders mounted on the main body, pistons of the first hydraulic oil cylinders connected with the rack, the telescopic motion of the pistons of the first hydraulic oil cylinders driving the rack to perform radial motion in the main body so as to make the bit protrude or retract from the main body. The electric motor is mounted in the main body and connected with the right angel speed reducer by the soft shaft. The electric motor transmits power by the soft shaft and the right angle speed reducer to drive the bit to rotate, the transmission efficiency is higher.