CN1070012A

CN1070012A - Doffing device

Info

Publication number: CN1070012A
Application number: CN92105276.6A
Authority: CN
Inventors: 关谷登
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 1991-07-01
Filing date: 1992-07-01
Publication date: 1993-03-17
Also published as: JPH0517073A

Abstract

The invention provides the doffing device that a kind of amount of coiling can be set arbitrarily.This device is to pass through cam L ₁-L ₈, R ₁-R ₈Finish relieving around the yarn tube of having expired with load onto in the doffing device 1 of a series of operations such as sky paper tube, drive to empty paper tube B coiling yarn and cam thereof, the coiling amount of utilizing the duration of runs of controlling motor 1M3 and speed to change yarn with independent motor 1M3.

Description

Doffing device

The present invention relates to be contained on the automatic bobbin winder that is provided with a plurality of spindles on the spooler side by side, and the doffing device that can move freely along it.

At first, with reference to Fig. 8 the automatic bobbin winder that uses doffing device is described.101 is frames of automatic bobbin winder among the figure, the 102nd, be arranged side by side the spooler on frame, the 103rd, the paper tube case of each spindle, the 104th, the discharging conveyer belt that is provided with behind along automatic bobbin winder, 105 are arranged on the track on automatic bobbin winder top, and the 106th, by means of the doff device of track 105 along the automatic bobbin winder walking freely.This doffing device 106 can carry out following a series of operation.When certain specific spooler 102 is over yarn tube P coiling, promptly interrupt unwinding, indicator lamp 111 is lighted.Doffing device 106 detects indicator lamp 111 and lights, just stop at this spindle in face of.Then, yarns Y is picked up come.Then, clipper cuts off yarns Y, and makes the yarn of below keep original position.Then, reel cage arm 110 is opened, and P outputs on the discharging conveyer belt 104 with the yarn tube.Then, paper tube of clamping is transported to reel cage arm 110 and gets on from paper tube case 103.Then, between paper tube and reel cage arm 110, clamp yarns Y, nipped yarns Y deliver near reel for yarn around the position so that carry out reel for yarn around.Then, press the button 112 ' start spooler 102.

Machine with the existing doffing device 106 that can carry out above-mentioned a series of operations illustrates with Fig. 9.The 115th, for picking up the pick-up that yarn is used, the 116th, cut off yarn and make it keep the cutter of original position, the 117th, the opener that the reel cage arm is opened, the 118th, the clamping paper tube also is transported to the clamper of reel cage arm with it, the 119th, that determines the yarn assigned position send the yarn bar, the 120th, pick up yarn and reel for yarn around the time make the roller of yarn tube or paper tube rotation, the 121st, make the hook of reel cage arm lifting.Each parts shown in the figure all are to be in armed state, by means of the rotation of cam set 122, can make each parts order in accordance with regulations reach the position of regulation, the operation of stipulating.

Because a series of operations all drive with cam in the above-mentioned existing doffing device, so these operations all are changeless, thereby the company's of existing reel for yarn around the length problem that can not change.

The present invention designs in view of existing in prior technology the problems referred to above, and its objective is provides a kind of coiling of yarn doffing device that amount can be set arbitrarily.

In order to achieve the above object, doffing device of the present invention is to finish relieving by cam around the yarn tube of having expired with load onto in the doffing device of a series of operations such as sky paper tube, with independent Motor Drive coiling yarn and cam thereof on empty paper tube.

When with the coiling of another independent Motor Drive yarn and cam thereof, just can be with the running time of control motor and the coiling amount that speed changes yarn.

Below, with reference to the description of drawings embodiments of the invention.

The simple declaration of accompanying drawing:

Fig. 1 is the front elevational schematic of doffing device;

Fig. 2 is that schematic diagram is looked on the right side of doffing device;

Fig. 3 is that schematic diagram is looked in the left side of doffing device;

Fig. 4 represent to reel order of yarn;

Fig. 5 represent to reel order of yarn plush copper;

Fig. 6 is the front elevational schematic that winds the bobbin of yarn;

Fig. 7 is the schematic perspective view that winds the yarn tube of yarn plush copper;

Fig. 8 is the automatic bobbin winder that is suitable for doffing device;

Fig. 9 is the schematic side view of existing doffing device.

Label declaration:

L1-L8, the R1-R8-cam; The 1M3-motor.

At first, illustrate that by Fig. 6 and Fig. 7 the yarn of forming doffing device of the present invention is around volume.Fig. 6 is that yarn on empty paper tube B is around volume.Yarn and thread head Y1 puts into sky paper tube B, unclamps preventing.Then, reel, make the coiling that on yarn end Y1, forms yarn to the direction of arrow.Fig. 7 is illustrated in the yarn plush copper on full yarn tube P, doffing device of the present invention as the yarn among Fig. 6 around the volume in, can also form the yarn plush copper among Fig. 7.The yarn plush copper forms the terminal Y2 that reels around minor diameter one side of empty paper tube B, compare with the end of a thread on common yarn tube cylindrical, than being easier to extract out the end of a thread.

Below, referring to figs. 1 through the mechanical structure of the above-mentioned yarn of Fig. 4 explanation can formation simultaneously around the doffing device of volume and yarn group plush copper.Fig. 1 is the front view of doffing device, and Fig. 2 is the right side view of doffing device, and Fig. 3 is the left side view of doffing device, and Fig. 4 is the structure chart of yarn guiding device.

In Fig. 1-Fig. 3, doffing device 1 can move freely on track 2 by means of wheel 3.Wheel 3 is driven by the motor 1M1 with change-over switch control, and rotating speed can change, and can quicken between high speed and low speed reposefully or slow down.In addition, spooler 4 has represented to comprise the top of transverse movement reel 5 in the drawings, and doffing device 1 moves freely directly over this spooler, when detecting green indicating lamp 6 when bright, promptly stops on preposition, carries out doffing operation.In addition, in Fig. 2, having on the doffing device 1 can rotating paper tube clamping device 7, can distinguish each one of two kinds of paper tube of clamping.Therefore, be installed into after spooler gets on, just forward on the b position at the locational paper tube of a.The new paper tube of predetermined kind then is fed to the b position from conveyer belt 8.Like this, just can load onto the paper tube of regulation kind on spooler 4, doffing device 1 itself just there is no need with the paper tube case of a lot of paper tubes has been housed.

Each parts that is installed on doffing device 1 right flank are described by Fig. 1 and Fig. 2.The 11st, by the hook that clevis arm 12 and hook bar 13 are formed, utilize the hook portions 13a of hook bar 13 ends, the reel cage arm that does not show among the figure is hooked, rise on the preposition.Be wound with the yarn plush copper around the position of the yarn tube P that has expired just by these hook 11 decisions.And clevis arm 12 is rotated by cam R1, and hook bar 13 is rotated by cam R2, and these two actions are connected, and just hooks the reel cage arm, and its pendulum is raised on the preposition.

The 14th, the roller of being made up of roller arm 15 and rubber roller 16 when running into the yarn plush copper, just makes around the yarn tube rotation of having expired, and the empty paper tube B that is contained on the reel cage arm also rotates, and prevents that yarn is loose.Also have, roller arm 15 usefulness cams 2 make its revolution, and rubber roller 16 is then driven by the motor 1M3 with change-over switch control by sprocket wheel 17 and chain 18.That is, the rotating speed of rubber roller 16 and rotation time can freely be set, and be irrelevant with cam.

The 19th, opener, be as yarn after volume and yarn group plush copper form, with loading onto sky paper tube B the open and close of reel cage arm are used in order to decontrol for the yarn tube P that has expired.And opener 19 makes its revolution by cam R5, makes it in horizontal slip by cam R6.

The 20th, for empty paper tube B is contained in the chuck of reel for yarn around last usefulness, it is advanced or retreats, yet the revolutions of chuck 20 itself use the motor 1M3 by change-over switch control to drive but by sprocket wheel 21 and chain 22 with anti-reverse clutch by cam R3.The rotating speed and the rotation time that are chuck 20 can freely be set, and be irrelevant with cam, so the coiling amount of yarn just can change.

The 23rd, for sucking the suction nozzle that yarn ends is used, it is advanced or retreat by cam R8, and, open and close by means of solenoid SVO, play air intake duct, that is, and the yarn that folder is come between empty paper tube B and chuck 20, after cutting off with following said clipper, suction nozzle 23 just sucks in the yarn and thread head in the very little gap that forms between empty paper tube B and chuck 20.

The 24th, on empty paper tube B, forming the yarn guiding device of yarn, make it to wave by cam R7 around volume usefulness.As shown in Figure 4, fluted 24a on the yarn guiding device 24 guides yarns Y the give allocation of yarn around volume into.That but, make that yarn moves to the arrow C direction around volume but is motor 1M4 by change-over switch control.Motor 1M4 promotes lever 27 bit by bit by

tooth

25,26, passes through

gear

28,29 again, and yarn guiding device 24 is bit by bit waved towards the direction of dotted arrow d, and yarn is moved towards the direction of arrow C around volume.Make motor 1M4 and the motor 1M3 interlock that makes sky paper tube B rotation, just can form the yarn of predetermined quantity with the pitch of regulation around volume.

With reference to Fig. 1 and Fig. 3 the various parts that are attached to doffing device 1 left surface are described.The 31st, the clamper of the empty paper tube B of clamping, it is to form position e and the carrying mechanism between the position f that installs on the reel cage arm at yarn around volume.Clamper 31 promotes revolution by cam L1, and 32 of pawls make its open and close by the cylinder of braking with solenoid SV1 33.

The 34th, for loading onto the chuck that sky paper tube B uses, make its forward and back by cam 12.The termination of chuck 34 is tapered, and is attached to chuck on the right flank and is used for the empty paper tube B of clamping and make the little end enlarging of its diameter jointly.

The 35th, by picking up yarn arm 36 and picking up the pick-up that yarn bar 37 is formed, ten yarn guiders 38 are housed on the termination of picking up yarn bar 37.Pick up yarn arm 36 and promote revolution, pick up 37 on yarn bar and promote revolution by cam L8 by cam L6.As shown in Figure 3, by means of by the not rotation of the yarn tube (being transverse movement reel 5) of having expired of the confession on the roller of expression in the drawings, make the yarns Y of transverse movement and blocked at the locational yarn guider 38 that picks up of h.Picking up the yarn guider then moves according to following order: h-i-j-k makes yarn be Y ₃, Y ₄The acute angle shape that is become.

The 39th, by the yarn bar, make it revolution by cam L7.The 40th, cutter makes its open and close by cam L3.Yarns Y ₃After being cut off near cutter 40, yarn and thread head Y ₃Promptly attracted in the yarn plush copper guider 41.Yarn and thread head Y4 then is sandwiched between the chuck 20 of sky paper tube B and Fig. 2.

The 41st, yarn plush copper guider makes it do laterally to slide by cam L3, makes its revolution by cam L5.In addition, the open and close with solenoid SVO are worked air intake duct.When with rubber roller 16(referring to Fig. 1) contact, when the yarn tube P counter-rotating of having expired, released yarn and thread head Y3 just is sucked in the yarn plush copper guider 41.The length of the yarn and thread head Y3 that is sucked into is exactly the length of yarn plush copper.Therefore, utilize the motor 1M3 that drives rubber roller 16, just can adjust the length of yarn plush copper arbitrarily.As shown in Figure 3, yarn plush copper guider 41 is positioned at minor diameter one side around the empty paper tube B of the yarn tube P that has expired.So in the yarn tube P rotation of having expired, along with moving of it just formed the yarn plush copper.

Form the order of yarn below with reference to Fig. 4 simple declaration with each parts of above-mentioned doffing device 1 around volume.Pawl 32 with clamper 31 clamps sky paper tube B, is transported on the axial location of chuck 20,34.Chuck 20,34 can be respectively advances or retreats in the direction of L2 and R3, clamps empty yarn tube.At this moment, be sucked into and be in the yarn end that withdraws from the locational suction nozzle 23 and clamped between chuck 20 and empty paper tube B.Then, yarn guiding device 24 is determined the position of yarns Y to the direction revolution of R7 by groove 24a.Then, by means of the rotation of chuck 20, form yarn around volume.Meanwhile, yarn guiding device 24 rotates to the d direction gradually, so yarn just moves to the C direction around volume.The coiling amount of yarn is decided by chuck

0 revolution.Reel for yarn is around at the end, and yarn guiding device resets to the position of imaginary line, clamps sky paper tube B with the pawl 32 of clamper 31 again, gets in the position that it is transported to the reel cage arm.Before transporting sky paper tube B, the loose thread that is in suction nozzle 23 the insides is discharged from empty paper tube B, is the state of Fig. 6, refills on the reel cage arm and goes.

The order that forms the yarn plush copper is described below with reference to Fig. 5.Be clamped on the reel cage arm 9 around the yarn tube P that has expired.The pin 9a of this reel cage arm 9 hangs on the hook bar 13, is on the preposition around the yarn tube P that has expired.Then, when yarn plush copper guider 41 be in imaginary line the position (cut off with cutter yarn the position near) time, just attract yarn end.Then, by means of the rotation of rubber roller 16, the yarn reverse rotation around having expired holds the end of a thread that unclamps.The length of the end of a thread that this unclamps promptly is the length of being determined by the revolution of rubber roller, has just determined.Then, yarn plush copper guider 41 moves to the position of solid line, facing to minor diameter one end of paper tube.Then, being made around the yarn tube of having expired by the rotation of rubber roller 16 just changes, so the yarn that is sucked in the yarn plush copper guider just is wound into the yarn plush copper at minor diameter one end of low pipe.Meanwhile, yarn plush copper guider 41 moves to the L4 direction gradually, forms yarn plush copper as shown in Figure 7.After the yarn plush copper forms, opener 19 is 9 relievings of reel cage arm, just having decontroled around the yarn tube P that has expired.Then, the empty paper tube of winding yarns is transported on the position of the reel cage arm of having decontroled 9, the reel cage arm is closed, install sky paper tube B by opener 19.

Doffing device of the present invention is to finish relieving by cam around the yarn tube of having expired with load onto in the doffing device of a series of operations such as sky paper tube, with independent Motor Drive coiling yarn group and cam thereof on empty paper tube, because running time and speed by this motor of control can change the coiling amount, can arbitrarily adjust the coiling amount of yarn group.

Claims

1, a kind ofly finish relieving around the yarn tube of having expired with load onto the doffing device of a series of operations such as sky paper tube by cam, it is characterized in that, coiling yarn and cam thereof are with independent Motor Drive on empty paper tube.