CN202864513U - Frictional expansion winding shaft - Google Patents

Abstract

The utility model discloses a frictional expansion winding shaft, which comprises a plurality of expansion rings and fixed rings, which are mounted in series on a main shaft, wherein the expansion rings comprise guide seats, a plurality of arc sliding blocks and a plurality of frictional assemblies; the fixed rings are sleeved on the main shaft; the guide seats are sleeved on the fixed rings; first annular baffles are fixedly connected to the left sides of the guide seats; second annular baffles are fixedly connected to the right side of the guide seats; a plurality of pistons are arranged on the outer circumferences of the fixed rings; third annular baffles are fixedly connected to the left sides of the fixed rings; fourth annular baffles are fixedly connected to the right sides of the fixed rings; annular steps are arranged on the left sides and the right sides of the guide seats; the two ends of each inner hole of each outer ring are sleeved on each first annular baffle and each second annular baffle respectively; the frictional assemblies comprise fixing plates, return elastic pieces and frictional pieces; the fixing plates are fixedly connected with the outer rings; and the tops of the frictional assemblies exceed the outer surfaces of the outer rings. The frictional expansion winding shaft can be used for expanding and tightening a steel pipe and a plastic pipe and winding a winding material with high sanitary requirement, and is wide in application range.

Description

Friction swelling winding off spindle

Technical field

The utility model relates to the string dress friction swelling winding off spindle that a kind of and mechanical equipment coordination use, and especially is fit to be configured in to the cutting of plastics, packing, paper and ultrathin metallic membrane etc., rolling, unreels on the mechanical equipment with rewinding.

Background technology

At present, the domestic and imported friction swelling winding off spindle that uses on the market, it is the rolling mode that adopts air sac or friction-type, because the swelling parts of friction swelling winding off spindle and the internal diameter area of contact of rolling core pipe are little, thereby can not the thinner and narrower material (such as steel pipe and soft plastic pipe) of swelling, inadequate swelling paper tube, paper tube is in the coiling working process, can be because the rolling expansive force surpasses the expansive force of swelling rolling paper tube, paper tube will skid at the swelling parts of friction swelling winding off spindle, just having paper scrap drops out, pollution is wound material and working environment, and the paper tube surface can not sterilize, so the paper tube high coiling material of hygienic requirements of can not reeling, and the recycling rate of paper tube is low, does not meet the requirement of present low-carbon environment-friendly.

The utility model content

The purpose of this utility model be to provide a kind of can either the swelling paper tube again can the swelling steel pipe and mould pipe, and the friction swelling winding off spindle of the high coiling material of hygienic requirements of reeling.

The technical scheme that realizes above-mentioned purpose is: a kind of friction swelling winding off spindle, it is to be contained on the main shaft by a plurality of packings and fixed circle string to consist of, described packing comprises guide holder, a plurality of arc shaped slider and a plurality of friction component, deciding snare is contained on the main shaft, have a plurality of pistons on the excircle of described fixed circle, the hole is propped up in the ventilation that has air extractor vent on the main shaft and be connected with the cavity of piston

Described packing also comprises the outer ring, the periphery of guide holder has the oblique slippage section of a plurality of arcs, guide holder is sleeved on to be decided on the circle, the left side of guide holder and right side all have ring-shaped step, be fixedly connected with the first ring baffle on the left side ring-shaped step of guide holder, be fixedly connected with the second ring baffle on the ring-shaped step of right side, the periphery of described guide holder is provided with a plurality of block sections radially, it is the transition of the oblique slippage section of arc between each block section, the two ends of described outer ring endoporus are set on the first ring baffle and the second ring baffle, left side and the right side of fixed circle all have the ring of deciding shape step, the left side of fixed circle decides to be fixedly connected with the 3rd ring baffle on the ring shape step, the right side decides to be fixedly connected with Fourth Ring shape baffle plate on the ring shape step, have a plurality of slider bore and a plurality of friction components hole on the outer ring, the top of arc shaped slider is inserted in the corresponding slider bore, and arc shaped slider its top section when sliding exceeds the outside face of outer ring, the oblique slippage section of the bottom surface of arc shaped slider and the arc of guide holder offsets, described friction component comprises adapter plate, return springs and friction member, adapter plate is captiveed joint with the outer ring, friction member is inserted in the corresponding friction component hole, outer ring, and the top of friction member exceeds the outside face of outer ring, and return springs is between adapter plate and friction member.

Described arc shaped slider has three at least, and the cross section is "T"-shaped.The periphery of described guide holder is provided with at least three block sections.

The friction layer that has one deck increase friction force on the arc top surface of described arc shaped slider.

Described friction component has three at least, and the return springs of every group of friction component has one at least.

After adopting the structure of technique scheme, during use, with rolling core pipe box on friction swelling winding off spindle of the present utility model, the main shaft air extractor vent passes into pressurized air and enters a ventilation hole, piston is stressed and be tight against and the swelling guide holder, drive packing along with spindle synchronous rotates, then with hand steered firmly rolling core pipe, with the opposite spin rolling core pipe of rolling core pipe along the main shaft rotation direction, the oblique slippage section of the arc jack-up that this moment, arc shaped slider was directed on the seat is blocked rolling core pipe, and arc shaped slider is on the oblique slippage section of arc during slippage, and arc shaped slider can not be stuck, so swelling is solid and reliable, because the cylindrical that the top of arc shaped slider consists of and the internal diameter of rolling core pipe approach, therefore fit with the endoporus contact surface of rolling core pipe, thereby can the swelling steel pipe and mould the rolling core pipe that the material such as pipe is made, steel pipe with mould tube-surface and can sterilize, can use in the high place of hygienic requirements, the energy repeated usage, the recycling rate is high, and range of use is wide.

Description of drawings

Fig. 1 is complete section section-drawing of the present utility model;

Fig. 2 is the A-A cross-sectional schematic among Fig. 1;

Fig. 3 is the complete section figure of outer ring among Fig. 2;

Fig. 4 is the cutaway view of guide holder among Fig. 2;

Fig. 5 is the B-B cutaway view of Fig. 4;

Fig. 6 is the cutaway view of the first ring baffle and the second ring baffle;

Fig. 7 is the cutaway view of the 3rd ring baffle and Fourth Ring shape baffle plate;

Fig. 8 decides the circle cutaway view;

Fig. 9 is the cutaway view of friction component among Fig. 2;

Figure 10 is the structural representation of arc shaped slider among Fig. 2;

Figure 11 is the left view of Figure 10.

The specific embodiment

The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.

Shown in Fig. 1 ~ 11, a kind of friction swelling winding off spindle, it is by a plurality of packings 2 and surely encloses 8 strings and be contained on the main shaft 1 and consist of, described packing 2 comprises guide holder 2-1, a plurality of arc shaped slider 2-2 and a plurality of friction component 2-4, surely enclosing 8 is sleeved on the main shaft 1, described surely the circle on 8 the excircle has a plurality of piston 8-1, hole 1-2 is propped up in the ventilation that has air extractor vent 1-1 on the main shaft 1 and be connected with the cavity of piston 8-1, described packing 2 also comprises outer ring 2-3, the periphery of guide holder 2-1 has the oblique slippage section of a plurality of arcs 2-1-1, guide holder 2-1 is sleeved on and decides on the circle 8, the left side of guide holder 2-1 and right side all have ring-shaped step 2-1-3, be fixedly connected with the first ring baffle 4 on the left side ring-shaped step 2-1-3 of guide holder 2-1, be fixedly connected with the second ring baffle 5 on the ring-shaped step 2-1-3 of right side, the periphery of described guide holder 2-1 is provided with a plurality of block section 2-1-2 radially, it is the oblique slippage section of arc 2-1-1 transition between each block section 2-1-2, the two ends of described outer ring 2-3 endoporus are set on the first ring baffle 4 and the second ring baffle 5, surely enclose 8 left side and right side and all have the ring of deciding shape step 8-2, surely enclosing 8 left side decides to be fixedly connected with the 3rd ring baffle 6 on the ring shape step 8-2, the right side decides to be fixedly connected with Fourth Ring shape baffle plate 7 on the ring shape step 8-2, have a plurality of slider bore 2-3-1 and a plurality of friction components hole 2-3-2 on the 2-3 of outer ring, the top of arc shaped slider 2-2 is inserted in the corresponding slider bore 2-3-1, and arc shaped slider 2-2 its top section when sliding exceeds the outside face of outer ring 2-3, the oblique slippage section of the arc of the bottom surface of arc shaped slider 2-2 and guide holder 2-1 2-1-1 offsets, described friction component 2-4 comprises adapter plate 2-4-1, return springs 2-4-2 and friction member 2-4-3, adapter plate 2-4-1 is captiveed joint with outer ring 2-3, friction member 2-4-3 is inserted in the corresponding friction component of the outer ring 2-3 hole 2-3-2, and the top of friction member 2-4-3 exceeds the outside face of outer ring 2-3, and return springs 2-4-2 is between adapter plate 2-4-1 and friction member 2-4-3.

Shown in Fig. 1,2,10,11, for swelling rolling core pipe more firmly, described arc shaped slider 2-2 has three at least, and the cross section is "T"-shaped.The periphery of described guide holder 2-1 is provided with at least three block section 2-1-2.

Described friction component 2-4 has three at least, and the return springs 2-4-2 of every group of friction component 2-4 has one at least.

Shown in Fig. 1,2,10,11, in order to increase the friction force of arc shaped slider 2-2, can also have the friction layer 2-2-6 that one deck increases friction force on the arc top surface of described arc shaped slider 2-2.

Referring to Fig. 1, shown in 2, when the utility model uses, rolling core pipe box is contained on the utility model, the air extractor vent 1-1 of main shaft 1 passes into pressurized air and enters a ventilation hole 1-2, piston 1-3 is stressed to be withstood and swelling guide holder 2-1, drive packing along with spindle synchronous rotates, then with the opposite spin rolling core pipe of rolling core pipe along main shaft 1 rotation direction, friction component 2-4 and rolling core inside pipe wall wipe contact, the oblique slippage section of the arc of arc shaped slider 2-2 on guide holder 2-1 2-1-1 is mobile, stretch out gradually slider bore 2-3-1, and make the diameter of the cylindrical that the top of three arc shaped slider 2-2 consists of become large, the arc top surface of arc shaped slider 2-2 and the inner tubal wall of rolling core pipe are tight against, last swelling rolling core pipe, after main shaft 1 rotates, surely enclose 8 and drive packings 2 and rotated together by the rolling core pipe of packing 2 swellings, reach the work purpose.

Employing piston 1-3 of the present utility model swelling can also be replaced with the swelling mode of appendix and fricting strip.

Claims (5)

1. friction swelling winding off spindle, it is to be contained in the upper formation of main shaft (1) by a plurality of packings (2) He Dingquan (8) string, described packing (2) comprises guide holder (2-1), a plurality of arc shaped slider (2-2) and a plurality of friction component (2-4), fixed circle (8) is sleeved on the main shaft (1), have a plurality of pistons (8-1) on the excircle of described fixed circle (8), hole (1-2) is propped up in the ventilation that has air extractor vent (1-1) on the main shaft (1) and be connected with the cavity of piston (8-1), it is characterized in that:

Described packing (2) also comprises outer ring (2-3), the periphery of guide holder (2-1) has the oblique slippage sections of a plurality of arcs (2-1-1), guide holder (2-1) is sleeved on to be decided on the circle (8), the left side of guide holder (2-1) and right side all have ring-shaped step (2-1-3), be fixedly connected with the first ring baffle (4) on the left side ring-shaped step (2-1-3) of guide holder (2-1), be fixedly connected with the second ring baffle (5) on the right side ring-shaped step (2-1-3), the periphery of described guide holder (2-1) is provided with a plurality of block sections (2-1-2) radially, it is the oblique slippage section of arc (2-1-1) transition between each block section (2-1-2), the two ends of described outer ring (2-3) endoporus are set on the first ring baffle (4) and the second ring baffle (5), left side and the right side of fixed circle (8) all have the ring of deciding shape step (8-2), the 3rd ring baffle (6) is decided to be fixedly connected with on the ring shape step (8-2) in the left side of fixed circle (8), the right side decides to be fixedly connected with Fourth Ring shape baffle plate (7) on the ring shape step (8-2), have a plurality of slider bore (2-3-1) and a plurality of friction components hole (2-3-2) on the outer ring (2-3), the top of arc shaped slider (2-2) is inserted in the corresponding slider bore (2-3-1), and arc shaped slider (2-2) its top section when sliding exceeds the outside face of outer ring (2-3), the oblique slippage section of the arc of the bottom surface of arc shaped slider (2-2) and guide holder (2-1) (2-1-1) offsets, described friction component (2-4) comprises adapter plate (2-4-1), return springs (2-4-2) and friction member (2-4-3), adapter plate (2-4-1) is captiveed joint with outer ring (2-3), friction member (2-4-3) is inserted in the corresponding friction component hole (2-3-2), outer ring (2-3), and the top of friction member (2-4-3) exceeds the outside face of outer ring (2-3), and return springs (2-4-2) is positioned between adapter plate (2-4-1) and the friction member (2-4-3).

2. friction swelling winding off spindle according to claim 1, it is characterized in that: described arc shaped slider (2-2) has three at least, and the cross section is "T"-shaped.

3. friction swelling winding off spindle according to claim 1, it is characterized in that: the periphery of described guide holder (2-1) is provided with at least three block sections (2-1-2).

4. friction swelling winding off spindle according to claim 1 is characterized in that: have the friction layer (2-2-6) that one deck increases friction force on the arc top surface of described arc shaped slider (2-2).

5. friction swelling winding off spindle according to claim 1, it is characterized in that: described friction component (2-4) has three at least, and the return springs (2-4-2) of every group of friction component (2-4) has one at least.

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