CN207669785U - A kind of cartridge type TPU film extruder - Google Patents

Abstract

The utility model is specifically related to be a kind of cartridge type TPU film extruder, including extruder ontology and mold, the discharge end of extruder ontology is connected to mold, liquid extruding chamber and inlet chamber are wherein respectively equipped in mold, inlet chamber is coaxially located at liquid extruding intracavitary, and the outer surface of mold is equipped with air blower, air inlet is connected at the air outlet of air blower, the output end of air inlet is connected with inlet chamber, and the opening of inlet chamber is consistent with the direction of the discharge port of liquid extruding chamber.The utility model has the beneficial effects that：This structure provides sufficient air pressure by air blower to inlet chamber, and the PU films that mold squeezes out is made to keep open configuration, solves TPU film and is easy that there are fold and bubble serious problems.In addition, this structure is implemented to adjust the air pressure in inlet chamber by relief valve, avoids air pressure too high or too low and influence the quality of TPU film.

Description

A kind of cartridge type TPU film extruder

Technical field

The utility model is specifically related to be a kind of cartridge type TPU film extruder.

Background technology

Existing TPU film is cast extruder generally mainly by extrusion equipment, cooling roller device, measuring thickness device, electricity at present Corona device and wrap-up composition, extrusion equipment, cooling roller device, measuring thickness device, corona unit and wrap-up are along TPU film Curtain coating extrusion line is sequentially arranged.In the actual production process, existing TPU film curtain coating extruder using the above structure is generally deposited It is low that fold, TPU film surface tension deficiency and tape casting efficiency are also easy to produce in complicated, TPU film casting processes Problem；And Chinese utility model patent application number 2016201561402 discloses a kind of TPU film curtain coating extruder, including master Rack, casting device, cooling device, hot-rolling, measuring thickness device, corona unit, traction roller arrangement, guide pad, wrap-up and electricity Device is controlled, TPU resins are stored in the storage glue tank of casting device and are dropped on cooling device along curtain coating plate by sizing pipe, after cooling TPU film be sent into hot-rolling and carry out secondary crystallization, TPU film is not susceptible to fold, and TPU film is sent into measuring thickness device by hot-rolling, TPU film is transferred to corona unit by measuring thickness device again, and sided corona treatment TPU is thin while oxygenation to corona equipment by oxygen supply equipment Film, to improve TPU film surface tension, the second conveying roller of corona unit transfers out TPU TPU film by traction roller arrangement Film is sent on guide pad and is wound by wrap-up.The patent is although simple in structure, film casting shaping efficiency is high, but it makes When producing the TPU film of cartridge type with the patent preparation facilities（TPU is managed）, cannot be satisfied TPU film tape casting（Cartridge type）Life Production needs；It is easy there are fold and bubble are serious, to keep final product quality very poor, in solution in addition, extrusion equipment squeezes out TPU film State existing TPU film curtain coating extruder there are the problem of, it is necessary to existing TPU film curtain coating extruder is improved.

Invention content

The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, it is fabulous to provide a kind of final product quality, keeps away Exempt from the cartridge type TPU film extruder of fold and bubble generation.

A kind of cartridge type TPU film extruder of the utility model description, including extruder ontology and mold, the extruder The discharge end of ontology is connected to mold, it is characterised in that be respectively equipped with liquid extruding chamber and inlet chamber in the mold, it is described into Air cavity is coaxially located at liquid extruding intracavitary, and the outer surface of the mold is equipped with air blower, connects at the air outlet of the air blower It is connected to air inlet, the output end of the air inlet is connected with the inlet chamber, and opening and the fluid of the inlet chamber squeeze The direction for going out the discharge port of chamber is consistent.

Further, the die surface is equipped with relief valve, and the relief valve is connected with the inlet chamber.

Further, it is connected by tube body between the relief valve and the inlet chamber.

Further, the relief valve is threadedly coupled with tube body.

Further, the relief valve is handle relief valve.

Further, the air blower is 70W air blowers.

Further, the cylindrical shape of liquid extruding chamber.

Further, the cylindrical shape of the inlet chamber.

Further, the coaxial distance δ between the outer wall of the inlet chamber and the inner wall of liquid extruding chamber is TPU film Thickness.

The utility model has the beneficial effects that：This structure provides sufficient air pressure by air blower to inlet chamber, and mold is made to squeeze The TPU film that goes out keeps flare up cylindrical position, solves TPU film and is easy that there are fold and bubble serious problems.In addition, this knot Structure is implemented to adjust the air pressure in inlet chamber by relief valve, avoids air pressure too high or too low and influences the quality of TPU film.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is that the utility model extruder ontology, mold, air blower, air inlet, inlet chamber are connected with liquid extruding chamber Connect structural schematic diagram.

The icon explanation of the following drawings：Extruder ontology 1, mold 2, relief valve 3, air blower 4, air inlet 5, air inlet Chamber 6, liquid extruding chamber 7.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

As shown in Figure 1 to Figure 2, a kind of cartridge type U thin film extruding machines of the utility model description, including 1 He of extruder ontology The discharge end of mold 2, extruder ontology 1 is connected to mold 2, is wherein respectively equipped with liquid extruding chamber 7 and inlet chamber 6 in mold 2, The inlet chamber 6 is coaxially located in liquid extruding chamber 7,7 cylindrical shape of the liquid extruding chamber, and the purpose is to because producing cartridge type What TPU film and needing designed, while in order to coordinate production cartridge type TPU film, 6 cylindrical shape of the inlet chamber, it is specific and Speech, the coaxial distance δ between the outer wall of the inlet chamber 6 and the inner wall of liquid extruding chamber 7 is the thickness of TPU film, makes extrusion The thickness for the cartridge type TPU film come is uniform, Improving The Quality of Products；The outer surface of the mold 2 is equipped with air blower 4, for this For utility model, the air blower 4 is 70W air blowers, provides sufficient air pressure, be connected at the air outlet of air blower 4 into The output end of gas air hose 5, the air inlet 5 is connected with inlet chamber 6, the discharging of the opening and liquid extruding chamber 7 of inlet chamber 6 The direction of mouth is consistent.In other words, when extruding cavity 7 squeezes out cartridge type TPU film, the cartridge type TPU film is so far lived in set eventually The outer wall of air cavity 6, the air blower 4 provide sufficient air pressure to inlet chamber 6, and the TPU film that mold 2 squeezes out is made to keep opening shape State, i.e., under the influence of air pressure, the TPU film that mold 2 squeezes out are in cartridge type, solve to paste, make when TPU is just squeezed out from mold 2 Film is easy that there are fold and bubble serious problems.

The invention also discloses 2 surface of the mold is equipped with relief valve 3, and relief valve 3 is connected with inlet chamber 6, institute It is handle relief valve to state relief valve 3, is connected through a screw thread by tube body between the relief valve 3 and the inlet chamber 6, the side of playing Just installation acts on；This structure is implemented to adjust the air pressure in inlet chamber by relief valve 3, avoids air pressure too high or too low and influences The quality of TPU film, i.e., the described 3 main function of relief valve is adjusted according to the thickness of TPU film, as the TPU of production When film thickness is thicker, needs to close or suitably turn down relief valve 3, allow the air pressure of air blower 4 to be sufficiently injected in TPU film, make The TPU film that mold 2 squeezes out keeps flare up cylindrical position, so that TPU film is not pasted, solves film and be easy that there are fold is gentle Steep serious problems；When the TPU film thinner thickness of production, need to open part or it is complete open relief valve 3, allow air blower 4 Air pressure part is discharged by relief valve 3, and part air pressure is injected in TPU film, and the TPU film that mold 2 squeezes out is made to keep flare up Cylindrical position makes TPU film not paste, solves film and be easy that there are fold and bubble serious problems.In addition, the relief valve 3 Be connected by tube body between inlet chamber 6, in order to make relief valve 3 far from mold 2, it is specific the reason is that：On the one hand It is originally attached using pipe according to 6 special construction of inlet chamber, on the other hand, when squeezing out TPU film, since mold 2 is grown Phase is in the condition of high temperature, and structure of the relief valve 3 containing high-precision parts such as rubber parts is therefore, special according to relief valve 3 It is structural, the relief valve 3 must be installed on the position far from mold 2.

Upper is only the preferred embodiment of the utility model, is not intended to limit the utility model, all new in this practicality Any modification, equivalent replacement or improvement etc., should be included in the protection of the utility model made by within the spirit and principle of type Within the scope of.

Claims (9)

1. a kind of cartridge type TPU film extruder, including extruder ontology (1) and mold (2), extruder ontology (1) go out Material end is connected to mold (2), it is characterised in that：It is respectively equipped with liquid extruding chamber (7) and inlet chamber (6), institute in the mold (2) It states inlet chamber (6) to be coaxially located in liquid extruding chamber (7), the outer surface of the mold (2) is equipped with air blower (4), the drum Air inlet (5) is connected at the air outlet of wind turbine (4), the output end of the air inlet (5) is connected with the inlet chamber (6) Logical, the opening of the inlet chamber (6) is consistent with the direction of discharge port of liquid extruding chamber (7).

2. a kind of cartridge type TPU film extruder according to claim 1, it is characterised in that：Mold (2) surface is equipped with Relief valve（3）, the relief valve（3）With the inlet chamber（6）It is connected.

3. a kind of cartridge type TPU film extruder according to claim 2, it is characterised in that：The relief valve（3）With it is described Inlet chamber（6）Between be connected by tube body.

4. a kind of cartridge type TPU film extruder according to claim 3, it is characterised in that：The relief valve（3）With tube body It is threadedly coupled.

5. a kind of cartridge type TPU film extruder according to claim 3, it is characterised in that：The relief valve（3）It is handle Relief valve.

6. a kind of cartridge type TPU film extruder according to claim 1, it is characterised in that：The air blower（4）It is 70W Air blower.

7. a kind of cartridge type TPU film extruder according to claim 1, it is characterised in that：The liquid extruding chamber（7）It is in Cylindrical shape.

8. a kind of cartridge type TPU film extruder according to claim 1, it is characterised in that：The inlet chamber（6）In cylinder Shape.

9. a kind of cartridge type TPU film extruder according to claim 1, it is characterised in that：The inlet chamber（6）Outer wall With liquid extruding chamber（7）Inner wall between coaxial distance δ be TPU film thickness.