Please select the most similar patent number from A, B, C and D. Which number is?
A rapier loom, comprising a frame (1). The frame (1) is provided with a cross beam (2), one side of the frame (1) is provided with a suction fan (3), the suction fan (3) is provided with a connection tube (4) connected to the cross beam (2), the front end of the connection tube (4) is provided with a plurality of extension tubes (5) extending above a cloth cover, the front ends of the extension tubes (5) are connected to the same one connection tube (6), and the connection tube (6) is provided with a plurality of through holes (7). The rapier loom has the following advantages and effects: when the suction fan (3) and a driving motor (12) are running, fibers and dust floating above the intersections of warps and wefts can be suctioned away, and the fibers and the dust can be blocked by a brush roller (9), thereby ensuring a stable air suction effect of the suction fan (3), greatly reducing floating objects clamped between the warps and the wefts on the cloth cover, and ensuring the quality of cloth.
A: Disclosed in the present utility model are a broken yarn detector applied to a rapier loom, comprising a detector body. The detector body is provided with a plurality of parallel yarn passing holes; an opening groove communicated with the yarn passing holes is provided in the upper end of the detector body; a bottom housing is vertically and slidably provided on the opening groove; a fixed plate is provided on one side of the bottom housing facing yarn; a pressure sensor connected to a controller is provided on the relative outer side of the fixed plate; a pressure transmitting plate is provided on the pressure sensor; a through hole is provided in each of the pressure transmitting plate and the fixed plate; a compression spring penetrating through the fixed plate is provided on the pressure transmitting plate; a tensile member is provided at the other end of the compression spring, and yarn penetrates through and abuts against the tensile member. The present utility model has the following advantages and effects: by arranging a temporary broken yarn detection device, temporary broken yarn detection can be carried out when one or more infrared detectors are damaged, thereby ensuring the working efficiency.
B: Disclosed is an environmentally clean dust-free bench cutting machine, comprising a shell (1) and a cutting workbench (2) arranged on the shell (1), wherein a saw mouth (3) is provided in the cutting workbench (2), an air suction bin (6) is arranged below the cutting workbench (2), the saw mouth (3) also serves as an air suction bin air inlet, the air suction bin (6) is provided with an air suction bin air outlet (73), the air suction bin air outlet (73) is provided with a horizontal centrifugal separator (7), a separator dust falling opening (71) is provided at the rear end of the horizontal centrifugal separator (7), a first dust-collecting box (81) is arranged at the separator dust falling opening (71), a separator air outlet (72) is arranged at the front end of the horizontal centrifugal separator (7), a filter cylinder (9) is arranged at the separator air outlet (72), and a negative pressure fan (10) is mounted at an air outlet of the filter cylinder (9). According to the cutting machine, dust and gas pre-separation can be achieved on a dust-containing gas flow, thus dust-free cutting can be achieved, and long-term stable operation of the machine can also be ensured; and the machine is small in size and convenient to carry and use.
C: A textile machine having an airflow conveyor and a filtering device, comprising an all-metal protective shell (1), an air inlet pipe (4), textile machine unwinding rollers (8) and an airflow conveyor (12); a dust removal filter (2) is mounted on the all-metal protective shell (1), a centrifugal suction fan (3) is mounted above the dust removal filter (2), the air inlet pipe (4) is mounted above the centrifugal suction fan (3), an auxiliary support roller (5) is provided above the air inlet pipe (4), a transverse textile roller (6) is mounted above the auxiliary support roller (5), a textile roller mounting frame (7) is mounted above the transverse textile roller (6), the textile machine unwinding rollers (8) are connected above the textile roller mounting frame (7), a textile roller adjuster (9) is mounted at one side of the textile machine unwinding roller (8) away from the textile roller mounting frame (7), a working platform (10) is mounted below the textile roller adjuster (9), a support roller adjuster (11) is connected below the working platform (10), the airflow conveyor (12) is mounted above the support roller adjuster (11), an operation control box (13) is mounted below the airflow conveyor (12), and a liquid crystal display panel (14) is mounted above the operation control box (13). The textile machine has the following beneficial effects that: the textile rollers can be adjusted to spin different yarns, and the air inside the textile machine can be absorbed and filtered, thus effectively solving the problem of clogging of the textile machine.
D: Provided is a fabric adhesive powder suction device, comprising: a machine frame (1), wherein the middle part of the front end of the machine frame (1) is provided with a driving roller (2) for feeding; the middle part of the rear end of the machine frame (1) is provided with a driven roller (3) for discharging; the lower end of the machine frame (1) is provided with several support rollers (4); the driving roller (2), the driven roller (3) and the support rollers (4) are connected by means of a conveying mesh belt (5); a drive device (6) connected to the driving roller (3) is provided at the lower end of the machine frame (1); a front powder suction head (7) and a rear powder suction head (8) are respectively provided, from the front to the back, on the machine frame (1) at an upper end of the conveying mesh belt (5) between the driving roller (2) for feeding and the driven roller (3) for discharging; the front powder suction head (7) and the rear powder suction head (8) are connected by means of a branch powder suction pipe (9) and a main powder suction pipe (10) respectively; the main powder suction pipe (10) is connected to an upper suction ventilator (11); the upper suction ventilator (11) is provided on the machine frame (1); and a main blowing head (12) cooperating with the front powder suction head (7) is provided on the machine frame (1) at the front end of the front powder suction head (7) in an inclined manner. The device has a high degree of automation, reducing the labour intensity of workers, and has a high working efficiency.
Answer: C