CN2530962Y - Pneuamtic cradle - Google Patents

Abstract

A new pneumatic cradle is disclosed which belongs to a textile machine. The utility model includes a cradle body, a support frame, a leakage indicator and so on, and is characterized in that: an air sac seat (6) with a piston-type valve is arranged between the support frame (3) and the cradle body (11) and is used for control the inlet and the outlet of air. An air inlet end of the valve is not connected to a plastic soft pipe directly but to an air outlet of the leakage indicator directly through a sealing ring by using an arc structure. Compared to a plastic soft pipe connection, a sealing ring connection in the position is more reliable. The user can also remove a fastening seat (2) and the leakage indicator (4) by loosening a pin (1) to replace the damaged sealing ring (5). The utility model is also convenient to install, assemble and maintain, and is applicable for spun yarn spinning machines and coarse roving spinning machines.

Description

The novel pneumatic reel cage

The utility model relates to a kind of textile machine, is the weaving reel cage that a kind of drafting unit adopts pneumatic pressurization specifically.

In existing textile machine, have the pneumatic pressurizing cradle of two kinds of patterns: whether a kind of be to utilize rotary valve and sealing ring to control the reel cage top roller to pressurize.Its shortcoming is: the part that 1. relative motion takes place in the reel cage is more, and especially rotary valve and two sealing rings rub, and will cause this reel cage can't operate as normal in case breakage takes place, and is positioned at the also very difficult replacing of sealing ring of its side; 2. the rotary valve in this reel cage gas circuit is connected with automatically reset control crank, and is too tight if two sealing rings cooperate, and can cause the handle difficulty that resets, if cooperate too pine, can cause gas leakage again, and the difficulty of therefore processing, assembling is big, the quality assurance difficulty.Another kind is to utilize plastic flexible pipe to connect suction nozzle and the air chamber in the reel cage body on the reel cage, is provided with steerable handle in the air chamber and controls the piston that moves up and down, and decides top roller whether to be added with pressure by the diverse location of piston.Its defective is: there is friction that a Metal Flake stay can be at random in the 1. locking zone of this plastic flexible pipe by this reel cage, reel cage to plastic flexible pipe, even scratches this flexible pipe in the process that locking or release are opened, and cause the reel cage can't operate as normal; 2. this plastic flexible pipe two is inserted in the plastic tube respectively and is also come off in operation easily, causes gas leakage and can't operate as normal; 3. this plastic flexible pipe is longer, and is complex-shaped, and difficulty of processing is big; Wearing and tearing 4. one sealing ring that works under the reel cage open mode arranged in its piston, in air chamber, move up and down, if can cause reel cage to leak gas under open mode.

The purpose of this utility model is: for overcoming the defective of above-mentioned two kinds of structure Pneuamtic cradles, provide a kind of through improved, both good reliability was not fragile, can reduce processing and assembly difficulty again, the novel pneumatic reel cage that operation and maintenance is easy.

The purpose of this utility model is achieved in that in the structure of existing Pneuamtic cradle, remove rotary valve and plastic flexible pipe connected mode, design a kind of novel Pneuamtic cradle, its concrete scheme is: comprise hollow square tube (3) and be fixed on reel cage body (11) on this support and the existing rotary valve formula Pneuamtic cradle structure of leakage indicator (4) in, between hollow square tube (3) and reel cage body (11), be connected the air bag seat (6) that can rotate around bearing pin (15) by bearing pin (15), the air inlet end face of this air bag seat is an arc structure, and this arc surface sealing ring (5) direct and on leakage indicator (4) gas outlet contacts; Be provided with the piston valve that comprises plunger shaft (16) and piston rod (7) in the air bag seat; Have air admission hole on the circular arc air inlet end face of air bag seat, in the straight-through plunger shaft of this pore, the side of plunger shaft is provided with air outlet, gas enters air admission hole on leakage indicator and arc surface from hollow square tube, after entering plunger shaft, the air outlet through the plunger shaft side enters the gasbag chamber in the reel cage body (11) again.Piston rod (7) in the plunger shaft is arc structure in two ends up and down, and the lower end is provided with stage clip (12), and the upper end is provided with sheet spring (13), and the top of this sheet spring contacts with control crank, opening or closing with by-pass valve control.Piston valve is in " passing through " position when the reel cage duty, and locates " closing " position when the reel cage release starts.Therefore air-channel system automatic vent when reel cage starts, air-channel system is ventilated automatically when reel cage is depressed, and makes the top roller pressurization.Be respectively equipped with sealing ring (9) and (8) in the upper and lower of piston rod (7), on hollow square tube support (3), also be provided with clamping seats (2) by bearing pin (1), just can take off clamping seats and leakage indicator as long as unclamp this pin, so that change sealing ring (5) easily.

The utility model has the advantages that: what 1. adopt because of this Pneuamtic cradle is that piston valve is controlled venting, avoided controlling the defective whether the reel cage top roller pressurizes and bring with rotary valve in the prior art, simultaneously have have on the air bag seat face of cylinder of piston valve through hole allow gas thus through hole enter air chamber, the defective of having avoided the available technology adopting plastic flexible pipe to come air guide to bring, therefore, this reel cage has handling ease simple in structure, reliable operation, the advantage of long service life; 2. be provided with three sealing rings (5), (8), (9) because of this reel cage.Because of sealing ring (9) does not produce relative motion, generally can not damage, and sealing ring (8) because of being arranged, relative motion has the possibility of damage, but according to its operation principle, it is when working over a long time, and air bag seat (6) rotates with reel cage body (11), and the face of cylinder of atresia contacts with sealing ring (5), blocked gas channel, even sealing ring (8) damages, also can avoid gas leakage, thereby make reliable operation.And changing the gas leakage that moment produced of duty, and keep away unavoidably, also allow.

Below in conjunction with accompanying drawing, an embodiment of the present utility model is elaborated:

Fig. 1 is the structural representation under the utility model reel cage duty.

Compressed air is from hollow square tube (3) the process leakage indicator (4) as support, under the effect of sealing ring (5), flow into piston chamber (16) by the air admission hole on air bag seat (6) face of cylinder, upwards the top is up to closely contacting with sealing ring (9) under spring (12) and pressure action for piston rod (7), and gas then carries out work the air bag in the pore inflow reel cage body (11) of piston chamber (16) side.

Fig. 2 is the structural representation of the utility model reel cage release when starting the position.Its process is as follows: at Fig. 1 state, and external force driving handle (10), the tension force that pressure film spring (13) drive piston rod (7) overcomes spring (12) moves downward, sealing ring (8) is blocked air inlet, sealing ring (9) unclamps with piston rod (7), and the gas in the air bag is emitted, the top roller release.The support reaction that stay is subjected in this reel cage diminishes, handle (10) moves on, and reel cage body (11) rotates around bearing pin (15) under spring (14) effect, and sealing ring (5) acts on the air bag seat inlet end face of cylinder of atresia, further seal air inlet, can carry out various maintenances and save work from damage.

Claims (2)

1, a kind of novel pneumatic reel cage, comprise the hollow square tube of using as support (3) and be fixed on reel cage body (11), leakage indicator (4), bearing pin (1), clamping seats (2) on this square tube, it is characterized in that: being connected with by bearing pin (15) between hollow square tube (3) and reel cage body (11) can be around the air bag seat (6) of bearing pin (15) rotation, the air inlet end face of air bag seat (6) is an arc structure, and this arc surface directly contacts with sealing ring (5) on the gas outlet of leakage indicator (4); Be provided with the piston valve that comprises plunger shaft (16) piston rod (7) in the air bag seat; Have air admission hole on the circular arc air inlet end face of air bag seat (6), in the straight-through plunger shaft of this pore, the plunger shaft side is provided with air outlet, and gas can enter the gasbag chamber in the reel cage body (11) through this hole.

2, Pneuamtic cradle according to claim 1 is characterized in that: the piston rod (7) in the air bag seat (6) is in " passing through " position when the reel cage duty, be at reel cage and be in " closing " position when release starts.