CN2635332Y - Upper drawing rotary device of blow moulding film equipment - Google Patents
Upper drawing rotary device of blow moulding film equipment Download PDFInfo
- Publication number
- CN2635332Y CN2635332Y CNU032547722U CN03254772U CN2635332Y CN 2635332 Y CN2635332 Y CN 2635332Y CN U032547722 U CNU032547722 U CN U032547722U CN 03254772 U CN03254772 U CN 03254772U CN 2635332 Y CN2635332 Y CN 2635332Y
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- China
- Prior art keywords
- roller
- hitch frame
- pendulum
- hook
- draught
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- Expired - Fee Related
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The utility model discloses an upper draught turning gear on the blow molding thin film equipment. The turning gear is provided with a single spindle vertically mounted on top beam of the fixing frame. A draught bracket pithook and a swing roller pithook in a C-shaped structure are arranged at the lower end of the spindle. A whole draught bracket mechanism is suspended on the draught bracket pithook, a swing roller is suspended on the swing roller pithook, and the swing roller is located over the draught bracket. At the same time a rotation motor and the driving parts respectively drive the draught bracket pithook and the swing roller to rotate and swing around the axle of the spindle on the same direction, making the swing angle of the draught bracket pithook plus or minus 45 degree to plus or minus 90 degree but the swing angle of the swing roller is all the time two-one of the swing angle of the draught bracket pithook. The membrane bubble blown from the blow molding equipment is rolled into a thin film by the draught roller and then delivered into a roller of the blow molding equipment through a first spread roller, a swing roller, a second spread roller. The thin film realizes that the changed positions of the thin and thick points are uniformly distributed in the course of the draught turning swing. The turning gear has simple and reliable structure, and high quality thin film rolling.
Description
Technical field
The utility model relates to the packaging film feeding device of inflation film equipment, refers to a kind of upward traction whirligig of inflation film equipment particularly.
Background technology
Often transverse gage is inhomogeneous for the plastic sheeting that common upward type inflation film equipment is produced, and is easy to generate defectives such as concentric reducer, edge slack, sudden and violent muscle or chase when film take-up, causes the film take-up degradation.Common improving one's methods is that the die head of inflation film equipment rotate with respect to last hitch frame, the distribution when the rolling of the thick point of film and thin point come, to improve its rolling quality.But for the inflation film equipment with multilayer die head, the number of plies of die head is many more, and the error of processing accumulation is big more, satisfy its required precision and make its rotation also more and more difficult, even may not realize.The pressure that parts and seal bore of the multilayer die head that rotates in high temperature and high pressure environment simultaneously is big, the rotational structure complexity, and poor sealing performance, the fault rate height often occur leaking the accident that material or swivel bearing and seal damage, and maintenance is very difficult.In order to overcome above-mentioned difficulties, people have designed the packaging film feeding device that the multilayer die head maintains static, the hitch frame of multilayer die head top rotates again, abbreviate the traction whirligig as.
Whirligig is drawn in present going up, and mainly contains big diameter disc rail mounted and big diameter disc and holds around two kinds of structures of formula.The hitch frame of traction whirligig is installed on the big diameter disc on the rail mounted, make ± 170 ° of rotary oscillations, and adopt the turnover of plurality of pendulums roller, the concentricity of its disk rotation need adopt the multiple spot adjustment to control, and this adjustment is the adjustment that equipment is installed, and its precision and equipment machining accuracy differ very big, so its structure is comparatively complicated, difficulty of processing is bigger, and running accuracy is difficult for guaranteeing.Simultaneously the plurality of pendulums roller makes the continuous telescopic variation in path of film at running, causes the linear velocity of film take-up constantly to change, so its rotary speed instability easily produces shake, stretcher strain also takes place film easily, causes the rolling quality decline of film.Several nip rolls that hold around traction whirligig on the formula vertically are installed on the periphery of big diameter disc, in the rotary oscillation process of disk, there is thin film storage and discharges two stages, rolling speed at the storage stage film is slack-off, and accelerate in the rolling speed that discharges the stage film, cause film local elongation or lax thus, influence the film take-up quality equally.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of going up of inflation film equipment simple and reliable for structure, that the film take-up quality is high to draw whirligig.
For realizing this purpose, the inflation film equipment that the utility model is designed go up the traction whirligig, comprise the fixed frame that is installed in inflation film equipment top, be installed in hitch frame in the fixed frame, be installed in herringbone row, traction electric machine, carry-over pinch rolls, the nip rolls on the hitch frame and be installed in secondary nip rolls on the fixed frame side.Be vertically installed with a main shaft on the back timber of said fixing frame, the lower end of this main shaft is equipped with hitch frame hook and the pendulum roller hook that structure is the C type, and hitch frame is suspended on the hitch frame hook, and the pendulum roller is suspended on the pendulum roller hook, and the pendulum roller is positioned at the top of hitch frame.One electric rotating machine also is installed on the back timber of said fixing frame, this electric rotating machine can drive hitch frame hook respectively and pendulum roller hook is made rotary oscillation in the same way around the axial line of main shaft by drive disk assembly, the pendulum angle of hitch frame hook be ± 45 °～± 90 °, and the pendulum angle of pendulum roller hook is 1/2nd of the pendulum angle linked up with of hitch frame all the time.Film that blow moulding equipment blows out bubble is sent into the wind-up roll of blow moulding equipment again through nip rolls, pendulum roller, a secondary nip rolls after carry-over pinch rolls are rolled into film.
Advantage of the present utility model is: adopt single main shaft to hang the whole haulage gear of going up of rotation, its concentricity around the rotation of spindle axis line is easy to control more than disk structure on the one hand, its structure is also greatly simplified than disk structure on the other hand, the size of parts is significantly dwindled, be easy to realize high accuracy processing, thereby can guarantee whole running accuracy and the rotational stabilization of going up the traction rotating mechanism, and then make the tractive force that acts on the film keep constant, avoid the tractive force inequality and cause the film stretching distortion, improve the film take-up quality.Simultaneously, adopt the single pendulum roller to become 1/2nd ratios back and forth to turn back with respect to the spindle axis line with hitch frame, guaranteed that from motion orientation and geometry the rolling linear velocity of film is even far beyond the rolling linear velocity of plurality of pendulums roller mechanism, the running of whole upward haulage gear is also more steady, further improves the film take-up quality.
Description of drawings
Fig. 1 is a kind of structural representation of going up the traction whirligig of inflation film equipment;
Schematic diagram when Fig. 2 is positioned at 0 ° for the rotary part of device shown in Figure 1;
Schematic diagram when Fig. 3 is positioned at-90 ° for the rotary part of device shown in Figure 1;
Fig. 4 is positioned at+schematic diagram 90 ° the time for the rotary part of device shown in Figure 1.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is described in further detail:
Whirligig is drawn in going up of the equipment of inflation film shown in the figure, has a fixed frame 13 that is installed in inflation film equipment top, be vertically installed with a main shaft 7 by thrust bearing 14 on the back timber of fixed frame 13, the lower end of main shaft 7 is fixed with the hitch frame hook 8 that a structure is the C type by flat key, hitch frame is linked up with on main shaft 7 shaft parts of 8 tops an active pendulum roll shaft bearing sleeve 10 is installed, be fixed with the pendulum roller hook 11 that a structure also is the C type on the active pendulum roll shaft bearing sleeve 10, pendulum roller hook 11 and hitch frame hook 8 relative dislocation layouts.Be hung with hitch frame 25 on hitch frame hook 8, herringbone row 23, traction electric machine 22, carry-over pinch rolls 20, transition roller 15 and a nip rolls 17 to the film guiding are installed on the hitch frame 25, herringbone is arranged the rotating disk 21 that 23 outsides have been equipped with the covering effect.Be hung with a pendulum roller 12 on pendulum roller hook 11, pendulum roller 12 is positioned at the C type hitch frame of hitch frame 25 tops and links up with 8 opening parts.With the contour position of pendulum roller 12 secondary nip rolls 18 is installed on fixed frame 13 sides, secondary nip rolls 18 belows are provided with transition roller 19.One electric rotating machine 1 also is installed on the back timber of fixed frame 13, electric rotating machine 1 links to each other by the hitch frame driven pulley 6 on being installed in hitch frame driving wheel 2, the hitch frame synchronous belt 4 on its output shaft and being fixed on main shaft 7, links up with 8 rotary oscillations with the hitch frame on the drive shaft 7; Electric rotating machine 1 links to each other by the pendulum roller driven pulley 9 on being installed in pendulum roller driving wheel 3 on its output shaft, pendulum roller synchronous belt 5 and being fixed on active pendulum roll shaft bearing sleeve 10, links up with 11 and makes rotary oscillation in the same way to drive pendulum roller on the pendulum roll shaft bearing sleeve 10.The amplitude of fluctuation of hitch frame hook 8 and pendulum roller hook 11, but both amplitude of fluctuation fixed ratio, the pendulum angle of hitch frame hook 8 be ± 45 °～± 90 °, the pendulum angle of pendulum roller hook 11 be all the time hitch frame link up with 8 pendulum angle 1/2nd.When be ± 60 ° as the pendulum angle of hitch frame hook 8, the pendulum angle of pendulum roller hook 11 requires to be ± 30 °; When the pendulum angle of hitch frame hook 8 was ± 80 °, the pendulum angle of pendulum roller hook 11 was ± 40 °, can realize by the gearratio of regulating drive disk assembly is convenient.
The above-mentioned cylindrical position of putting the pendulum roller 12 on the roller hook 11 axial line best and main shaft 7 that is suspended on is tangent, promptly tangent with pivot.Layout can make film keep path length invariable in the process of traction swing rotation to greatest extent like this, guarantees the film take-up constant airspeed, significantly improves the film take-up quality.
The pendulum angle of above-mentioned hitch frame hook 8 is preferably ± and 90 °, the pendulum angle of correspondingly putting roller hook 11 is ± 45 °.Film thick point and thin point in the process of traction swing rotation are distributed symmetrically evenly, further improve the film take-up quality.
During the utility model work, on the film bubble 24 that blows arrange 23 from herringbone and import, after carry-over pinch rolls 20 are rolled into film 16, to nip rolls 17, pendulum roller 12, secondary nip rolls 18, vertically turn back again and send into the wind-up roll of inflation film equipment through transition roller 19 by transition roller 15 levels turnovers.In the distraction procedure of film 16, the proportional all the time axial line around main shaft 7 of hitch frame 25 and pendulum roller 12 is rotary oscillation accurately, with the thickness point transformation position distribution on the film 16, thereby guarantees the film take-up quality.
Claims (5)
1. going up of an inflation film equipment drawn whirligig, comprise the fixed frame (13) that is installed in inflation film equipment top, be installed in the hitch frame (25) in the fixed frame (13), be installed in the herringbone row (23) on the hitch frame (25), traction electric machine (22), carry-over pinch rolls (20), a nip rolls (17), and be installed in secondary nip rolls (18) on fixed frame (13) side, it is characterized in that: be vertically installed with a main shaft (7) on the back timber of fixed frame (13), the lower end of main shaft (7) is equipped with hitch frame hook (8) and the pendulum roller hook (11) that structure is the C type, hitch frame (25) is suspended on the hitch frame hook (8), pendulum roller (12) is suspended on the pendulum roller hook (11), and pendulum roller (12) is positioned at the top of hitch frame (25); One electric rotating machine (1) also is installed on the back timber of fixed frame (13), electric rotating machine (1) drives hitch frame hook (8) respectively by drive disk assembly and pendulum roller hook (11) is made rotary oscillation in the same way around the axial line of main shaft (7), the pendulum angle of hitch frame hook (8) be ± 45 °～± 90 °, the pendulum angle of pendulum roller hook (11) be all the time hitch frame link up with (8) pendulum angle 1/2nd; Film bubble (24) is sent into the wind-up roll of inflation film equipment again through a nip rolls (17), pendulum roller (12), secondary nip rolls (18) after carry-over pinch rolls (20) are rolled into film (16).
2. whirligig is drawn in going up of inflation film equipment according to claim 1, and it is characterized in that: said main shaft (7) is installed on the back timber of fixed frame (13) by thrust bearing (14); Said hitch frame hook (8) is fixed on the lower end of main shaft (7) by flat key; Said pendulum roller hook (11) is fixed on the active pendulum roll shaft bearing sleeve (10) of main shaft (7) lower end; Said electric rotating machine (1) links to each other by the hitch frame driven pulley (6) on being installed in hitch frame driving wheel (2), the hitch frame synchronous belt (4) on its output shaft and being fixed on main shaft (7), links to each other with pendulum roller driven pulley (9) on being fixed on active pendulum roll shaft bearing sleeve (10) by being installed in pendulum roller driving wheel (3) on its output shaft, pendulum roller synchronous belt (5).
3. inflation film equipment according to claim 1 and 2 go up the traction whirligig, it is characterized in that: the axial line of said cylindrical position that is suspended on the pendulum roller (12) on the pendulum roller hook (11) and main shaft (7) is tangent.
4. whirligig is drawn in going up of inflation film equipment according to claim 1 and 2, it is characterized in that: the pendulum angle of said hitch frame hook (8) is ± 90 °.
5. whirligig is drawn in going up of inflation film equipment according to claim 3, it is characterized in that: the pendulum angle of said hitch frame hook (8) is ± 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032547722U CN2635332Y (en) | 2003-07-10 | 2003-07-10 | Upper drawing rotary device of blow moulding film equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032547722U CN2635332Y (en) | 2003-07-10 | 2003-07-10 | Upper drawing rotary device of blow moulding film equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635332Y true CN2635332Y (en) | 2004-08-25 |
Family
ID=34294685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032547722U Expired - Fee Related CN2635332Y (en) | 2003-07-10 | 2003-07-10 | Upper drawing rotary device of blow moulding film equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635332Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361118A (en) * | 2020-03-08 | 2020-07-03 | 广东金明精机股份有限公司 | Rotary traction film blowing production process |
-
2003
- 2003-07-10 CN CNU032547722U patent/CN2635332Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361118A (en) * | 2020-03-08 | 2020-07-03 | 广东金明精机股份有限公司 | Rotary traction film blowing production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |