A kind of Pneumatic core shaft structure that is applied to Full-automatic film winderTechnical field
The utility model relates to film take-up equipment technical field, relates in particular to a kind of Pneumatic core shaft structure that is applied to Full-automatic film winder.
Background technology
As a kind of very important packing, film is widely used in daily life.Wherein, for film production manufacturer, after film forming, must, by corresponding thin film winder by the bundled web-like of film take-up, to facilitate, place and transportation.
Thin film winder generally comprises by motor-driven active wind-up roll and is positioned over the initiatively gas expansion shaft of wind-up roll top, gas expansion shaft is under Action of Gravity Field and be erected on initiatively wind-up roll, in the situation that motor drives initiatively wind-up roll rotation, gas expansion shaft is along with active wind-up roll rotates, and then realizes film take-up operation; When being set in the paper web of gas expansion shaft and being rolled up film, continuous film must be cut off.Wherein, winder frame includes two over against left side adapter plate and the right side adapter plate arranged, left side adapter plate and right side adapter plate parallel interval layout, initiatively the both ends of the wind-up roll turning cylinder of wind-up roll are erected on respectively left side adapter plate, the right side adapter plate of corresponding side rotatably.
Along with automatic technology is constantly applied, Full-automatic film winder is just used by increasing film production manufacturer; For Full-automatic film winder, for meeting the needs of automation, the location of gas expansion shaft in whole film take-up process seems particularly important.
Summary of the invention
The purpose of this utility model is to provide a kind of Pneumatic core shaft structure that is applied to Full-automatic film winder, the positioning requirements that this is applied to the Pneumatic core shaft structure modern design of Full-automatic film winder and can effectively meets automation film take-up.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of Pneumatic core shaft structure that is applied to Full-automatic film winder, include the metal axis body of the rounded shape of cross-sectional plane, the core of metal axis body offers containing cavity, in containing cavity, be embedded with rubber pneumatic bag, the outside face of metal axis body offers and is evenly pin-and-hole spaced apart and that be communicated with containing cavity, in each pin-and-hole, can be embedded with relatively actively respectively the gas pin that rises, the both ends of metal axis body are provided with respectively external diameter value compared with the little reduced diameter section of metal axis body middle part external diameter value, and wherein the inside of a reduced diameter section is embedded with the admission piece being connected with rubber pneumatic bag;
Two reduced diameter sections of metal axis body are respectively installed with bearing set, the bearing set of two reduced diameter sections is arranged symmetrically with, each bearing set includes respectively three spaced apart bearings, the external diameter value of each bearing is little compared with the external diameter value at metal axis body middle part, each bearing is set in corresponding reduced diameter section by interference fit respectively, in each bearing set, between adjacent two bearings, forms positioning groove.
The beneficial effects of the utility model are: a kind of Pneumatic core shaft structure that is applied to Full-automatic film winder described in the utility model, it comprises the metal axis body of the rounded shape of cross-sectional plane, setting-in rubber pneumatic bag in the containing cavity of metal axis body core, metal shaft external surface is offered pin-and-hole, the setting-in gas pin that rises relatively actively respectively in each pin-and-hole, metal axis body two end portions does not arrange reduced diameter section, wherein the inside setting-in admission piece of a reduced diameter section; Two reduced diameter sections of metal axis body are set with bearing set, each bearing set comprises respectively three spaced apart bearings, each bearing is set in corresponding reduced diameter section by interference fit respectively, in each bearing set, between adjacent two bearings, forms positioning groove.By said structure, design, the utility model can meet the positioning requirements of automation film take-up effectively, the utlity model has the advantage of structure design novelty.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the utility model below, but the embodiment in accompanying drawing does not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
In Fig. 1, include:
1---metal axis body 11---reduced diameter section
2---gas rise pin 3---admission piece
4---bearing 5---positioning groove.
The specific embodiment
Below in conjunction with concrete embodiment, the utility model is described.
As shown in Figure 1, a kind of Pneumatic core shaft structure that is applied to Full-automatic film winder, include the metal axis body 1 of the rounded shape of cross-sectional plane, the core of metal axis body 1 offers containing cavity, in containing cavity, be embedded with rubber pneumatic bag, the outside face of metal axis body 1 offers and is evenly pin-and-hole spaced apart and that be communicated with containing cavity, in each pin-and-hole, can be embedded with relatively actively respectively the gas pin 2 that rises, the both ends of metal axis body 1 are provided with respectively external diameter value compared with the little reduced diameter section 11 of metal axis body 1 middle part external diameter value, wherein the inside of a reduced diameter section 11 is embedded with the admission piece 3 being connected with rubber pneumatic bag.
Further, two reduced diameter sections 11 of metal axis body 1 are respectively installed with 4 groups, bearing, 4 groups, the bearing of two reduced diameter sections 11 is arranged symmetrically with, 4 groups, each bearing includes respectively three spaced apart bearings 4, the external diameter value of each bearing 4 is little compared with the external diameter value at metal axis body 1 middle part, each bearing 4 is set in corresponding reduced diameter section 11 by interference fit respectively, in 4 groups, each bearing, between adjacent two bearings 4, forms positioning groove 5.
Below in conjunction with concrete course of action, the utility model is described in detail, be specially: at gas expansion shaft, carry out in the process of film take-up, rubber pneumatic bag in admission piece 3 inflation and containing cavity expands and supports the gas pin 2 that rises, gas rises by pin 2 under the thrusting action of rubber pneumatic bag and stretches out corresponding pin-and-hole and hold the inside face of paper web, by the rise effect that holds of pin 2 of gas, paper web can keep synchronizeing rotation with gas expansion shaft; Need further to explain, for each reduced diameter section 11 of metal axis body 1, two positioning grooves 5 that are comprised of three bearings spaced apart 4 can position gas expansion shaft well, and then can effectively guarantee the operation of automatic high-efficiency film take-up.
Comprehensive above-mentioned situation is known, by said structure, designs, and the utility model can meet the positioning requirements of automation film take-up effectively, the utlity model has the advantage of structure design novelty.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.