CN1251856C - Vacuum adsorption twist rotating device for producing plastic barrel shaped pipe film - Google Patents

Vacuum adsorption twist rotating device for producing plastic barrel shaped pipe film Download PDF

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Publication number
CN1251856C
CN1251856C CN 03135335 CN03135335A CN1251856C CN 1251856 C CN1251856 C CN 1251856C CN 03135335 CN03135335 CN 03135335 CN 03135335 A CN03135335 A CN 03135335A CN 1251856 C CN1251856 C CN 1251856C
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vacuum suction
vacuum
plastic tube
film
periosteum
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Expired - Fee Related
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CN 03135335
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CN1475337A (en
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甘国工
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Abstract

The present invention provides a vacuum-absorption twisting rotary device for producing plastic cylindrical pipe film, which comprises an extruding die of the plastic pipe film and a drawing mechanism composed of an A-shaped frame and a drawing griping roller. The present invention is characterized in that a vacuum-absorption rotary mechanism which comprises a vacuum-absorption sleeve having fine small holes or a vacuum tank comprising the rotary vacuum-absorption sleeve or a rotary vacuum tank comprising the vacuum-absorption sleeve is arranged in the device. The vacuum-absorption sleeve is arranged between the outlet end of the extruding die of the plastic pipe film and the drawing mechanism, is positioned at the inner wall or the outer wall of an extruded plastic blank pipe film, and is communicated with a vacuum pipeline. The vacuum-absorption sleeve can be pumped to vacuum and can rotate actively. During vacuum pumping, a blank pipe film in a viscous flow state at the outlet end of the die is attached on the vacuum-absorption sleeve because of vacuum absorption, and can rotate following the vacuum-absorption sleeve. The device of the present invention can produce the pipe blank film which has the advantages of no fixed shape before drawing, high macro-molecule content, thick blank film, high cooling efficiency and large yield.

Description

Produce the vacuum suction rubbing whirligig of plastics tubular periosteum
Technical field:
The present invention is relevant with the device of producing plastics tubular periosteum, and is relevant with the rubbing whirligig of producing plastics tubular periosteum especially.
Background technology:
The manufacturing technique method of extruded plastic foil also mainly is divided into two big classes at present: a big class is flat film extrusion molding, or claims the curtain coating extrusion molding; Another kind of is periosteum blowing extrusion molding, is called for short the blown film method.Thin film is such as below the 0.1mm, and the film of broad is such as the film greater than 4m, and needs film to be this class plastic sheeting of cast film, also mainly at present produces by the blown film method.
The blown film method is round because of mould, pressure in the runner and flow are inconvenient to adjust, add the reason of the design and the processing of mold runner, and to the cooling medium of film bubble and other reason, up to the present, the thickness of MEASUREMENTS OF THIN finished product on the same section of tubular, generally positive and negative 10~12%, the production technology equipment is higher for tolerance, and production control is preferably at least also 6~8%, the control level 2~3% at present best with flat embrane method compares, and still has very big gap.Therefore the blown film legal system is got film, must face positive and negative at least 6~8% thickness tolerance, this thickness tolerance of 6~8% is in the fixed position that is in all the time on the periosteum on the circumferential discontinuity, the finished product that batches of film is had because of the different concavo-convex situations that cause of thickness on the circumferential plane outside, particularly projection partly, when film being unreeled printing, this projection film partly drawn when batching, serious out-of-flatness occurs, even can't print.Therefore people reduce the thickness tolerance as possible except control and the process technology that employing improves constantly, more be about how making the thickness point in the research and development blown film method in the fixed position that is not on the circumference on the circumferential discontinuity, how in batching, to obtain smooth reeling quality, make film bubble or periosteums rotation so invented various described in the technical field, particularly the relative rotation between viscous state film pipe and cooling forming periosteum and technology that thickness point is evenly distributed on circumference.
Invented at present and report several different methods arranged, take the whole rotation of extrusion die, man-like shelf and traction nip rolls do not rotate, because of die head rotates relatively, the viscous state periosteum of using die end constantly is pulled on the one hand motion linearly, because of rotating relatively, die head make the periosteum surface produce screw on the other hand along the central shaft rotation, make the thickness point in spiral distribution uniformly on circumference, can find that the thickness point does not repeat to distribute on the section circumference, the purpose of rotation that Here it is if obtain section in different places on the periosteum.The external mold rotation of the core of general die head or die head or die head can obtain this result; but problem is that plastic molten mass is high pressure in the die head; die head temperature is high again; the sealing of revolving part is difficult for solving; often leak material and can not ordinary production; extruder is also arranged and be installed in whole rotation on the pedestal together with the die head that is attached thereto; also can obtain equifinality; but rotating mechanism is huge; only suitable upper blowing method is produced Plastic tube membrane; such as: produce the high density polyethylene pipe film; but the plastics such as the polypropylene that are not suitable for upper blowing method production just can't be produced; for multi-layer co-extruded; the equipment that extruder is bigger; because of the whole rotation of pedestal difficulty also can't adopt this method; up to the present; reported; produce the polyacrylic pipe die that is fit to lower blowing method; be that extruder and the die head of taking do not rotate; and take man-like shelf and have the haulage gear of traction nip rolls to be placed on integrally rotated method on the pedestal together with spooler; the finished film that obtains like this; its thickness point distributes and batches the result and equally can obtain planarization preferably with the result of the described die head rotary process in front; but if will carry out biaxial tension directed and thermal contraction fixation processing and cold formed processing, complicated like this and huge drawing mechanism and heat to the film that lower blowing method obtains; cold formed processing mechanism is placed on the pedestal of rotation not may.
We will produce the polypropylene bidirection drawing film of tubular or the film that broadwise is cross directional stretch, in order to obtain the periosteum base that unformed big molecule content is higher before stretching, the base film is thicker, cooling effectiveness is high, production capacity is big, must take lower blowing method production, but above-mentioned biaxial stretching film or cross directional stretch film must have complicated drawing mechanism and heat, cold formed processing mechanism and spooler, need we man-like shelf and the haulage gear of traction nip rolls is arranged and spooler together with invention on the method for rotating on the pedestal with find new method.
Having reported with invention disclosed also has the extruder and the die head that are fit to upper blowing method production not to rotate, spooler does not rotate and adopts man-like shelf and the method for the haulage gear rotation of traction nip rolls is arranged, the haulage gear rotation makes the film bubble of cooling forming or periosteum rotate at the clamping and the draw lower edge film tubular axis heart of haulage gear, because of constantly rotation traction traction and rolling, make the viscous flow state blank tube film of die head exit end produce the spiral rotation, and be evenly distributed to the thickness point of die head exit end blank tube film on the periphery in a spiral manner, and it is smooth that finished product is batched, but blow method on this and be not suitable for producing the blank tube film that thickness surpasses 0.2mm, be used for both blank tube films of warp direction stretching film of biaxial stretching film or longitudinal stretching if will produce, the thick 0.3mm that generally is greater than of its blank tube film, new method need be invented and find to drawing mechanism and huge to the thermal contraction and the cooling and shaping processing mechanism of stretched film on the method basis in addition.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, a kind of periosteum base that unformed big molecule content is higher before stretching, the base film is thicker, cooling effectiveness is high, output is big of producing is provided, obtain to design easily and be provided with behind the required pipe film complicated and huge non-rotary biaxial tension mechanism or simple tension mechanism, thermal contraction processing mechanism, cooling and shaping processing mechanism and spooler, and for the vacuum rubbing whirligig of the production plastics tubular periosteum of the finished film reeling quality that obtains.
The object of the present invention is achieved like this:
Vacuum rubbing whirligig of the present invention comprises by the Plastic tube membrane extrusion die, by man-like shelf and the haulage gear formed of traction nip rolls, the vacuum suction rotating mechanism is arranged in the device, and the vacuum suction rotating mechanism comprises between the port of export that is arranged on the Plastic tube membrane extrusion die and the haulage gear, be positioned at that the inwall of the plastic blank periosteum of extruding or outer wall communicate with vacuum line can vacuumize and can active rotation, when vacuumizing the viscous flow state blank tube film of die head exit end because of vacuum suction attach thereon with the vacuum suction cover that has trickle aperture of its rotation or contain rotation the vacuum suction cover vacuum tank or contain the rotation vacuum tank of vacuum suction cover.
Above-mentioned vacuum suction cover is arranged on the inwall of Plastic tube membrane or inner metal sleeve or the metal-coating that outer wall has sandwich, the passage that logical cooling medium is arranged in the interlayer, cooling medium is attached to the periosteum that puts with the cover rotation to being attached to the quick cooling and shaping of periosteum on the metallic sheath because of vacuum suction, making simultaneously.
Above-mentioned vacuum suction cover is to utilize electric heating or heat medium that it is controlled the interior cover or the overcoat of corresponding setting with inwall Plastic tube membrane or outer wall temperature, because of vacuum suction be attached to the periosteum that puts can by to the temperature control of cover to the periosteum temperature control, make simultaneously to be attached to the periosteum that puts with the cover rotation.
Oriented viscous flow state blank tube film outer surface water supply is with the water ring of the friction of the vacuum suction rotary sleeve of minimizing and periosteum and rotation between the port of export of above-mentioned Plastic tube membrane extrusion die and the vacuum suction rotating mechanism.
Between the port of export of above-mentioned Plastic tube membrane extrusion die and the vacuum suction rotating mechanism and/or between the haulage gear formed of man-like shelf and traction nip rolls, the periosteum cooling body that is provided with cooling air ring and/or cooling water ring at the inwall and/or the outer wall of the Plastic tube membrane of extruding.
Above-mentioned vacuum suction rotating mechanism between the port of export and haulage gear of the Plastic tube membrane extrusion die of upwards installing, be located on the inwall or outer wall of the Plastic tube membrane of upwards extruding, plastics tubular periosteum is with the upwards i.e. upwards mode of traction production of the mode of production.
Above-mentioned vacuum suction rotating mechanism is located between the port of export and haulage gear of Plastic tube membrane extrusion die of downward installation, is located on the inwall or outer wall of the Plastic tube membrane of extruding downwards, and plastics tubular periosteum is to be downward mode of traction production with the downward mode of production.
Above-mentioned vacuum suction rotating mechanism is that plastics tubular periosteum is that horizontal direction production is that the horizontally tracting mode is produced between the port of export and haulage gear of the extrusion die that level is installed, on the inwall or outer wall of the Plastic tube membrane extruded of the level of being located at.
Referring to Fig. 1~Fig. 6, during apparatus of the present invention work, power source vacuumizes in it when driving vacuum suction cover or the rotation of rotation vacuum tank, the viscous flow state blank tube film of extruding from the Plastic tube membrane extrusion die rotates with it because of vacuum suction attaches thereon, and the tubular base film of the plastics of producing send spooler or drawing mechanism through haulage gear.
Unformed big molecule content height before apparatus of the present invention can be produced and stretch, the pipe film that the base film is thicker, cooling effectiveness is high, output is big, thereby obtain required thickness point and can conveniently design and be provided with complicated and huge non-rotary biaxial tension mechanism or simple tension mechanism, thermal contraction processing mechanism, cooling and shaping processing mechanism and spooler by equally distributed pipe film, obtain good finished film reeling quality.
Description of drawings:
Fig. 1 has apparatus of the present invention figure of rotation vacuum suction cover for bottom blowing type.
Fig. 2 has apparatus of the present invention figure of rotation vacuum tank for bottom blowing type.
Fig. 3 has apparatus of the present invention figure of the absorption cover of rotation for upward type.
Fig. 4 blows apparatus of the present invention figure that formula has the vacuum suction cover of rotation for putting down.
Fig. 5 has apparatus of the present invention schematic diagram of the vacuum suction cover of rotation in periosteum for upward type.
Fig. 6 has apparatus of the present invention schematic diagram of the vacuum suction cover of rotation in periosteum for bottom blowing type.
The specific embodiment:
Embodiment 1:
Fig. 1 has provided apparatus of the present invention embodiment 1 structural representation, referring to Fig. 1, the Plastic tube membrane extruded film head 2 that is contained in upper rack, the extruder 3 that communicates with extrusion die are arranged in the multi-layer co-extruded inflation film manufacturing machine 1, be contained in the haulage gear 6 that contains man-like shelf 4 and traction nip rolls 5 of frame lower.Be arranged on the frame to have between extrusion die and haulage gear and contain cooling water inlet 7, coolant outlet 8, be positioned at the vacuum tank 10 that vacuum suction rotating mechanism 21 on the Plastic tube membrane outer wall of extruding contains evacuation passageway 9 downwards.The vacuum suction that contains blank tube film passage 18 overlap 11 1 ends stretch in the vacuum tank and have on its other end with motor 12 output shafts on gear 13 meshed gears 14.The vacuum tank upper and lower part has seal 15, sealing flexible glue film 16 respectively.The vacuum tank inner peripheral wall and on relative vacuum absorption be with a plurality of spray heads 17.The viscous flow state blank tube film 19 of extruding the vacuum suction cover that enters rotation from the extruded film head because of vacuum suction thereon with its rotation, spray head ejection cooling water makes its quick cooling and shaping, forms the multi-layer barrel plastic blank periosteum 20 before stretching under the traction of haulage gear.
Embodiment 2:
Fig. 2 has provided apparatus of the present invention embodiment 2 figure.Present embodiment 2 basic with embodiment 1 with, not existing together is to have on the vacuum tank 10 and gear 13 meshed gears 22, vacuum suction is overlapped 11 and is fixed on the vacuum tank and together rotates with vacuum tank.The oriented viscous flow state blank tube film outer surface of the port of export of extrusion die supply water to reduce the water ring 41 with the friction of vacuum suction cover.
Embodiment 3:
Fig. 3 has provided the embodiment of the invention 3 figure.Present embodiment 3 is basic same with embodiment 1, not existing together is below and the top that Plastic tube membrane extrusion die 2 and the haulage gear 6 that contains man-like shelf and traction nip rolls lay respectively at frame, vacuum suction rotating mechanism 21 on the outer wall of the Plastic tube membrane of upwards extruding, the suction ring 42 of oriented blank tube film outer surface suction between vacuum tank and haulage gear.
Embodiment 4:
Fig. 4 has provided the embodiment of the invention 4 figure.Present embodiment 4 is basic same with embodiment 1, do not exist together is extruder 3, Plastic tube membrane extrusion die 2, haulage gear 6 horizontal positioned, vacuum suction rotating mechanism 21 is between Plastic tube membrane extrusion die 2 and haulage gear 6 that level is installed, on the outer wall of the Plastic tube membrane that the level of being positioned at is extruded.
Embodiment 5:
Fig. 5 has provided the embodiment of the invention 5 figure.Have on the vacuum suction rotary sleeve 23 vacuumize, logical cold air or the passage 24 of heat medium, the trickle aperture 25 that communicates with passage 24.Motor 12 makes the rotation of vacuum suction rotary sleeve by the sprocket wheel 28 on the sprocket wheel on the output shaft 26 and chain 27 and the vacuum suction rotary sleeve 23.The Plastic tube membrane extrusion die 2 that communicates with extruder 3 be sleeved on the vacuum suction rotary sleeve and with spring bearing 29 is arranged therebetween.The haulage gear 6 that contains man-like shelf 4 and traction nip rolls 5 is positioned at the top of vacuum suction rotary sleeve.Inner cooling vane 30 is arranged between haulage gear and vacuum suction rotary sleeve.The air-out passage 34 that contains the air intake passage 32 of inner cooling air inlet 31 and contain inner cooling air air outlet 33 pass that the vacuum suction rotary sleeve is communicated with inner cooling vane 30 and and the vacuum suction rotary sleeve between spring bearing 35 is arranged.The viscous flow state blank tube film of extruding from extrusion die 19 be attracted on the vacuum suction rotary sleeve and thereupon rotation and under the haulage gear traction at inner cooling vane be positioned at the cold wind that external refrigeration vane 36 blew out periosteum outside and rapid cooling and shaping is a multi-layer barrel plastic blank periosteum 20.
Embodiment 6:
Fig. 6 has provided the embodiment of the invention 6 structural representations.Evacuation passageway 37, logical cooling or the passage 38 of heat medium, a plurality of trickle aperture 25 that communicates with evacuation passageway 37 are arranged on the vacuum suction rotary sleeve 23.Motor 12 makes the rotation of vacuum suction rotary sleeve by the sprocket wheel 28 on the sprocket wheel on the output shaft 26 and chain 27 and the vacuum suction rotary sleeve.Plastic tube membrane extruded film head 2 is sleeved on the vacuum suction rotary sleeve and spring bearing 29 is arranged therebetween.The below that contains the haulage gear 6 seat vacuum suction rotary sleeves of man-like shelf 4 and traction nip rolls 5.The viscous flow state blank tube film of extruding from extrusion die 19 be attracted on the vacuum suction rotary sleeve and thereupon rotation and under the effect that is containing the overflow-type external refrigeration water ring 39 of water and delivery port under the haulage gear traction and rapidly cooling and shaping be blank tube film 20.There is elimination cooling water droplet to hang used flannelette 40 in the exit of overflow-type external refrigeration water ring.

Claims (8)

1, produce the vacuum suction rubbing whirligig of plastics tubular periosteum, comprise by the Plastic tube membrane extrusion die, by man-like shelf and the haulage gear formed of traction nip rolls, it is characterized in that the vacuum suction rotating mechanism is arranged in the device, the vacuum suction rotating mechanism comprises between the port of export that is arranged on the Plastic tube membrane extrusion die and the haulage gear, be positioned at that the inwall of the plastic blank periosteum of extruding or outer wall communicate with vacuum line can vacuumize and can active rotation, when vacuumizing the viscous flow state blank tube film of die head exit end because of vacuum suction attach thereon with the vacuum suction cover that has trickle aperture of its rotation or contain rotation the vacuum suction cover vacuum tank or contain the rotation vacuum tank of vacuum suction cover.
2, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1, it is characterized in that the vacuum suction cover is arranged on the inwall of Plastic tube membrane or inner metal sleeve or the metal-coating that outer wall has sandwich, has the passage of logical cooling medium in the interlayer.
3, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1 or 2 is characterized in that the vacuum suction cover is to utilize electric heating or heat medium that it is controlled the interior cover or the overcoat of corresponding setting with inwall Plastic tube membrane or outer wall temperature.
4, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1 or 2 is characterized in that oriented viscous flow state blank tube film outer surface between the port of export of Plastic tube membrane extrusion die and the vacuum suction rotating mechanism supplies water to reduce the water ring with the friction of the vacuum suction cover of rotation.
5, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1 or 2, it is characterized in that between the port of export of Plastic tube membrane extrusion die and the vacuum suction rotating mechanism and/or haulage gear that man-like shelf and traction nip rolls are formed between, the periosteum cooling body that is provided with cooling air ring or cooling water ring at the inwall and/or the outer wall of the Plastic tube membrane of extruding.
6, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1 or 2, it is characterized in that the vacuum suction rotating mechanism between the port of export and haulage gear of the Plastic tube membrane extrusion die of upwards installing, be located on the inwall or outer wall of the Plastic tube membrane of upwards extruding.
7, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1 or 2 is characterized in that the vacuum suction rotating mechanism is located between the port of export and haulage gear of Plastic tube membrane extrusion die of downward installation, is located on the inwall or outer wall of the Plastic tube membrane of extruding downwards.
8, the vacuum suction rubbing whirligig of production plastics tubular periosteum as claimed in claim 1 or 2 is characterized in that the vacuum suction rotating mechanism is between the port of export and haulage gear of the extrusion die that level is installed, on the inwall or outer wall of the Plastic tube membrane extruded of the level of being located at.
CN 03135335 2003-07-03 2003-07-03 Vacuum adsorption twist rotating device for producing plastic barrel shaped pipe film Expired - Fee Related CN1251856C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03135335 CN1251856C (en) 2003-07-03 2003-07-03 Vacuum adsorption twist rotating device for producing plastic barrel shaped pipe film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03135335 CN1251856C (en) 2003-07-03 2003-07-03 Vacuum adsorption twist rotating device for producing plastic barrel shaped pipe film

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CN1475337A CN1475337A (en) 2004-02-18
CN1251856C true CN1251856C (en) 2006-04-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11312057B2 (en) 2019-03-21 2022-04-26 Bbs Corporation Water quenching apparatus and process for blown film lines

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107553884B (en) * 2017-11-01 2025-05-27 苏州庆睿轩电子科技有限公司 PET film preheats rotary mechanism
CN116161295B (en) * 2023-04-26 2023-08-08 天津环博科技有限责任公司 Silicon chip packagine machine
CN121200404B (en) * 2025-11-27 2026-02-24 浙江鹏翔精机制造有限公司 Die head structure of film blowing machine and use method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11312057B2 (en) 2019-03-21 2022-04-26 Bbs Corporation Water quenching apparatus and process for blown film lines

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Granted publication date: 20060419

Termination date: 20130703