CN2219282Y

CN2219282Y - Clamping protector for clamping head of winder

Info

Publication number: CN2219282Y
Application number: CN 95243550
Authority: CN
Inventors: 龚绍堂; 程正权; 李建武
Original assignee: CHINESE TEXTILE UNIV
Current assignee: CHINESE TEXTILE UNIV
Priority date: 1995-03-08
Filing date: 1995-03-08
Publication date: 1996-02-07
Anticipated expiration: 2005-03-08

Abstract

The utility model relates to a filament clamping protector for the clamping head of a winder, which is used for a high speed winder for manufacturing POY and an ultra-high-speed winder for manufacturing FOY. An end cover is fixedly connected with the press cap 6 of the clamping head is provide with two counter bores in opposite position. The inside the bore is provided with protective blocking column 21, a blocking cap 22, and control elements for controlling the expansion and contraction of the protective blocking column 21. A radial gap and an axial gap are arranged between the protective blocking column 21 and the blocking cap 22, and the blocking cap 22 and the end cover 20 are connected to form a body. The utility model can be arranged on various clamping heads clamped by flexible elements and stiffeners for preventing a barrel tube and package from pulling out caused by the inadequate clamping force; an accident can be avoided.

Description

Up-coiler chuck clamping protection device

The utility model relates to a kind of winding filament machine grip holder clamping protection device, the hyper-speed up-coiler that is specially adapted to produce the high-speed winder of POY and produces FOY.

The existing chuck that is used for high-speed spinning and super high-speed spinning up-coiler clamps by friction force between its clamping element and the bobbin.Clamping element is all even to be distributed on the chuck circumference.Clamping element as the described up-coiler chuck of BARMAGSW4 system winding head is a stiffener, the radial displacement that relies on the clamping element motion to be produced clamps, the clamping element of the beautiful TW503 type up-coiler chuck in east is flexible member (as a rubber element), clamps by the radial displacement that elastic deformation own produced.External diameter increases behind the clamping element radial displacement, is pressed on the circumference of bobbin internal diameter, thereby produces friction force to reach the purpose of clamping.The degree of reliability that clamps depends on the size of friction force, and the size of friction force depends on radial displacement again, and all kinds of chucks all have the radial displacement value of a maximum.In the chuck use, the moment of inertia during owing to starting, brake just produces certain slide relative sometimes greater than the friction moment of friction force between clamping element and bobbin, and this class is slided and caused the gauge wear of clamping element, and gripping power is died down.After certain hour uses, because the enough numerical value of friction force out of reach, just might be in winding process or when doff brake, cause that bobbin and package skid generation along the chuck longitudinal travel, consequently break away from chuck and fly out, have an accident.This situation is in the existing generation of chemical-fibres filaments originating firm.Use one period long term at machine especially, vibrate under the bigger situation, this type of safety hazard is just bigger.

The purpose of this utility model is to propose a kind of up-coiler chuck clamping protection device, prevent bobbin and be wrapped in the winding process or the doff brake stage since chuck insufficient clamping force and flying out from chuck have an accident.

For achieving the above object, solution of the present utility model is:

The up-coiler chuck is an example with the flexible member clamping, it has collet body 1, the piston 2 that is installed in wherein moves along the collet body central axis with back-up ring 5, drive gland 6 by stage clip 3, door 4, hole, make several groups of rubber clamping elements 7, long spacer ring 8 of arranged in series, short spacer ring 9 be subjected to axle pressure thus, thereby make rubber clamping element 7 produce radial displacements and play clamping action.The utility model up-coiler chuck clamping protection device is to split two counterbores on the gland 6 with chuck is fixedly linked end cap 20; the control element of packing in the hole and protecting bumping post 21, retaining cap 22 and control protection bumping post 21 to stretch;

protection bumping post

21 and 22 on cap of retaining have diameter clearance and endplay, and retaining cap 22 and end cap 20 fuse.

On above-mentioned end cap 20, also can open several counterbores.Retaining cap 22 and end cap 20 can screw link, are press-fitted, riveted joint, pin connects, glues together or other removable or non-disconnectable mode of connection fuses.Protection bumping post 21 can axially stretch out or withdraws along retaining cap 22.The method that protection bumping post 21 is stretched out has two kinds: 1, and the mat centnifugal force stretches out protection bumping post 21 during the chuck revolution, and 2, mat spring force (being generally the top spring) forces protection bumping post 21 to stretch out.The withdrawal mode is divided two kinds: 1, and under centnifugal force stretches out situation, but mat stage clip, extension spring or pressurized air will be protected bumping post 21 withdrawals.2, force under the situation of stretching out at the mat spring, will protect bumping post 21 withdrawals with pressurized air.

The utility model is additional clamping protection device on the up-coiler chuck that with the rubber element is clamping element; the chuck that can be used for the rigidity clamping element equally; as long as in the end cap counterbore that links to each other with gland with screw, adorn several bumping posts; centnifugal force or spring make it produce certain radial displacement when utilizing running, block bobbin with this and move outward, avoid bobbin and package to fly out; and available stage clip, extension spring or pressurized air set back bumping post; be convenient to normal doff, simple in structure, reliable clamping.

The utility model has the advantages that:

(1) can prevent bobbin and be wrapped in the winding process or the doff brake stage because insufficient clamping force and on chuck, produce longitudinal travel, even deviate from, flying out has an accident.

(2) the utility model can be used for also can being contained in existing chuck on the newly-designed chuck, can both play a protective role.

Fig. 1 stretches out the front section view of stage clip withdrawal for protection bumping post mat centnifugal force

Fig. 2 stretches out the front section view of extension spring withdrawal for protection bumping post mat centnifugal force

Fig. 3 stretches out the front section view of mat pressurized air withdrawal for protection bumping post mat centnifugal force

Fig. 4 stretches out the front section view of pressurized air withdrawal for protection bumping post mat spring forces

Below in conjunction with accompanying drawing and example to this practical being described in further detail.

Fig. 1, piston 2 is housed in collet body 1, piston is adorned stage clip 3 outward, stage clip 3 by door 4 be contained in hole in the collet body 1 with back-up ring 5 piston 2 and the gland 6 that is attached thereto along moving to left in the collet body 1, thereby make gland 6 with certain axial force compressing rubber clamping element 7, rubber clamping element 7 is connected on mutually on the collet body 1 and is transmitting axial force by long spacer ring 8, short spacer ring 9.Rubber clamping element 7 is subjected to axial compression, and the generation radial deformation is eliminated the gap between rubber clamping element 7 and the bobbin 10, thereby clamps bobbin 10, radial deformation is big more, gripping power is just big more, in case hour gripping power is just not enough for radial deformation, bobbin just has the possibility that gets loose and fly out.Clamping protection device on the end cap 20 that be fixedly linked by the gland 6 of screw and chuck this moment works.Because retaining cap 22 big end internal diameters have diameter clearance with protection bumping post 21 small end external diameters in the counterbore; retaining cap 22 small end internal diameters are less than protection bumping post 21 big end external diameters; retaining

cap

22 and 21 of protection bumping posts also have endplay; so that make protection bumping post 21 when chuck rotates; the mat centnifugal force produces can be along the longitudinal travel of retaining cap 22, when insufficient clamping force, be enough to block bobbin and package along collet axis to deviating from.During doff, chuck stops revolution, and then control element stage clip 23 is not having to protect bumping post 21 withdrawals under the centnifugal force situation.

Fig. 2, in this structure, up-coiler chuck body part is identical with Fig. 1; on the end cap 20 clamping protection device is housed, during the chuck rotation, protection bumping post 21 is basic identical with Fig. 1 structure; only replace stage clip 23 among Fig. 1,, block bobbin and package flies out because of centnifugal force produces radial displacement with extension spring 24.During doff, chuck stops revolution, and control element extension spring 24 is not having to protect bumping post 21 withdrawals under the centnifugal force situation.

Fig. 3; in this structure; up-coiler chuck body part is identical with Fig. 1; end cap 20 (only increasing air flue 27 with the difference of Fig. 1) is housed on the gland 6; on the end cap 20 clamping protection device is housed,, only increases seal groove with the difference of Fig. 1 comprising retaining cap 22; protection bumping post 21; only increase seal groove with the difference of Fig. 1, air flue 27, seal ring 25; 26; because retaining cap 22 internal diameters in the counterbore have diameter clearance with protection bumping post 21 small end external diameters, retaining cap 22 small end internal diameters make protection bumping post 21 when rotated less than protection bumping post 21 big end external diameters; because of centnifugal force produces displacement, block bobbin and package flies out.During doff, chuck stops revolution, and centnifugal force disappears, and this device utilizes the pressurized air in the original metal of the chuck system, when by the loose pushing cylinder button of this system, connects pressurized air, makes 21 withdrawals of protection bumping post through control element air flue 27.

Fig. 4; in this structure; up-coiler chuck body part is identical with Fig. 1; on the end cap 20 clamping protection device is housed, itself and Fig. 3 structure are basic identical, only increase control element top spring 28; no matter whether collet body 1 turns round; under the effect of top spring 28, protection bumping post 21 generation radial displacements block bobbin and package flies out.During doff, when by loose pushing cylinder button, connect pressurized air, make 21 withdrawals of protection bumping post through control element air flue 27.

Claims

1. high speed spinning or super high-speed spinning up-coiler chuck clamping protection device; it is characterized in that on the end cap 20 that the gland 6 with chuck is fixedly linked, splitting two counterbores; pack in the hole and protect bumping post 21; the control element that retaining cap 22 and control protection bumping post 21 stretch; protection bumping post 21 and 22 on cap of retaining have diameter clearance and endplay, and retaining cap 22 and end cap 20 fuse.

2. by the described up-coiler chuck of claim 1 clamping protection device, it is characterized in that also can opening several counterbores on the described end cap 20.

3. by claim 1 or 2 described up-coiler chuck clamping protection devices, it is characterized in that described control element can be a stage clip 23.

4. by the described up-coiler chuck of claim 3 clamping protection device, the described control element of its feature can be extension spring 24.

5. by the described up-coiler chuck of claim 4 clamping protection device, it is characterized in that described control element can be to feed compressed-air actuated air flue 27.

6. by the described up-coiler chuck of claim 5 clamping protection device, it is characterized in that described control element can be top spring 28 and feed compressed-air actuated air flue 27.