Please select the most similar patent number from A, B, C and D. Which number is?
An integrated rolling and sieving machine based on gravity sensing for automated tea leaf processing. The machine comprises a frame, a rolling device, a sieving device, and a PLC controller. The rolling device comprises a rolling table, several rolling blades, a first motor, a pressure adjustment spring, and an adjustable nut. The rolling blades are sleeved on a main shaft of the first motor. The rolling table is fixedly arranged on the frame by means of several support plates. The sieving device comprises a second motor, a pair of crank drive mechanisms, a screen, a sleeve, and an electric cylinder. One end of the screen is connected to and driven by the second motor, the other end of the screen is connected to one end of the electric cylinder, and the other end of the electric cylinder is hinged to the frame.
A: An integrated feeding and cutting device for regular long strip-shaped materials, comprising a feeding module, a middle transport module, a cutting module, and a discharging module. The feeding module comprises a material storage belt (1) and a feeding drive mechanism, wherein the end of the material storage belt (1) close to the middle transport module runs around a first support point (b) and then is fixed on a frame (2), the other end runs around a second support point (c) and then is fixedly connected to the feeding drive mechanism, the second support point (c) is higher than the first support point (b), and a material (a) is placed on a material storage portion of the material storage belt (1); the feeding drive mechanism comprises a feeding drive motor (3) and an auxiliary transmission swing arm (4), the bottom end of the auxiliary transmission swing arm (4) is hinged to the frame (2), and the top end is fixedly connected to the material storage belt (1); and the feeding drive motor (3) drives the auxiliary transmission swing arm (4) to rotate. The cutting module comprises a cutting machine (5) and a clamping mechanism. The integrated feeding and cutting device can achieve fully automatic feeding, transport, cutting, and discharging operations, reduce the labor intensity for workers, and improve production efficiency.
B: A turnover machine for overhauling bearings, comprising a rack (1). The bottom of the rack (1) is provided with wheels (2). The rack (1) is further provided with a first turnover plate (3) and a second turnover plate (4) separately. One end of the first turnover plate (3) and one end of the second turnover plate (4) are both hingedly connected to the rack (1) by means of pin shafts (5.1, 5.2). A first turnover cylinder (601) and a second turnover cylinder (6.2A) are further provided inside the rack (1). The bottom of the other end of the first turnover plate (3) is hingedly connected to an end of a piston rod in the first turnover cylinder (6.1A), and the bottom of the other end of the second turnover plate (4) is hingedly connected to an end of a piston rod in the second turnover cylinder (6.2A). The rack (1) is further provided with conveying rollers (7, 8). The back of the second turnover plate (4) is provided with a support frame (9). A clamping cylinder (10) is provided in the support frame (9). A chuck (11) is further provided in the second turnover plate (4). An end of a piston rod in the clamping cylinder (10) is fixedly connected to the back of the chuck (11), and the front of the chuck (11) is provided a claw (12) and further provided with a guide rail (18). Two sides of the back of the claw (12) are slidably connected to the guide rail (18), and the back is further provided with a lead screw (15). The middle of the back of the claw (12) is fixedly connected to a nut seat sleeved on the lead screw (15). The turnover machine has a variety of turnover angles, can meet the processing requirements of different processes of bearings, can more conveniently and stably fix the bearings, and is less likely to scratch the surfaces of the bearings.
C: Disclosed is a rotary rolling machine, comprising: a base; a material tank; a first driving device; a rotation mechanism; a second driving device; and a rolling cylinder. The rolling cylinder is eccentrically provided inside the material tank. The second driving device is connected to the rolling cylinder, and drives the rolling cylinder to perform eccentric movement about an axis of the material tank. The first driving device is connected to the rotation mechanism. The rotation mechanism is connected to the material tank. The material tank is provided above the base. The first driving device drives, by means of the rotation mechanism, the material tank to perform reciprocating rotation about a horizontal axis I. The apparatus solves the problem in the art of poor rolling performance and efficiency resulting from an unvaried rolling motion performed by a small rolling disc employed in a mechanical rolling process.
D: A glue dispensing device for electronic component production, the device comprising a rack (1). A glue material mixing and impurity filtering device (2) is mounted at the top of the rack. A glue dispensing head (3) is mounted at the lower end of the glue material mixing and impurity filtering device. A supporting plate (9) is arranged on the lower portion of an inner side of the rack. A plurality of telescopic cylinders (10) are mounted on the lower side of the supporting plate. The lower ends of the telescopic cylinders are fixed to the rack. A Y-axis moving mechanism (11) is mounted on the upper side of the supporting plate. An X-axis moving mechanism (8) is mounted on the upper side of the Y-axis moving mechanism. A rotating electric motor (7) is mounted on the upper side of the X-axis moving mechanism. A rotating disc (6) is mounted at the end of an output shaft of the rotating electric motor. Fixing clamps (4) are mounted on the upper side of the rotating disc. A plurality of air suction heads (5) are circumferentially distributed and mounted on an outer side of the rotating disc and are in communication with an air suction hose (12). The other end of the air suction hose is connected to an air suction filtering device (13) mounted on the rack. The glue dispensing device can improve material mixing and impurity filtering effects, has a wide application range, can improve the environmental quality of a working area, and is beneficial to the health of workers.
Answer: C