CN210211280U

CN210211280U - Ultraviolet-resistant PET transparent sheet production equipment

Info

Publication number: CN210211280U
Application number: CN201920932125.6U
Authority: CN
Inventors: Cungang Li; 李存刚
Original assignee: Tianjin Fangfei Plastic Products Ltd By Share Ltd
Current assignee: Tianjin Fangfei Plastic Products Ltd By Share Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-03-31
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses an ultraviolet resistance PET transparent sheet production facility draws together the extruder, the extruder includes base, feed cylinder, driving motor, screw rod and vacuum feed arrangement, the feed cylinder is installed on the base and is provided with a plurality of zone of heating in the outside axial, the screw rod is installed at the inside one end of feed cylinder and is linked to each other with the driving motor who installs on the base, be provided with the feed bin in the vacuum feed arrangement, the feed bin bottom is provided with the discharge gate and links to each other with the feed cylinder and set up the bleeder valve between, and the filling vessel is installed on the base, the feed bin middle part still is provided with the filter core, the filter core top is provided with the vacuum centrifugal pump, the vacuum centrifugal pump passes through the vacuum trachea and links to each other with. The utility model discloses a set up vacuum feed arrangement and solved the problem that ultraviolet resistance PET transparent sheet extruder feed efficiency for production facility is low.

Description

Ultraviolet-resistant PET transparent sheet production equipment

Technical Field

The utility model relates to a PET production and processing equipment technical field specifically is an ultraviolet resistance PET transparent sheet production facility.

Background

Ultraviolet resistance PET polyethylene terephthalate (PET) is saturated polyester prepared by esterification Polycondensation of Terephthalic Acid (PTA) and Ethylene Glycol (EG).

The anti-ultraviolet PET is applied to replacing a steel belt and a PP packing belt to become a novel packing material by virtue of the advantages of low cost, attractive appearance, durability, environmental protection, recycling, high automation degree and the like because a PET plastic steel belt (also called a PET packing belt) is a novel packing belt which is popular internationally at present. The composite material is widely applied to industries such as steel, aluminum, chemical fiber, cotton spinning, tobacco, paper, ceramics, wood, metal cans and the like, and is also used as a geotechnical material and the like. And (3) processing and forming the anti-ultraviolet PET, wherein the PET is thermoplastic polyester and can be used for forming and processing spinning, injection molding, extrusion, blow molding and the like. The processing fluidity is excellent, and the method is suitable for processing some thin-wall parts with complex structures. The rheological property of PET and PBT in a molten state is close to non-Newtonian, so that the melt viscosity of PET and PBT is more sensitive to the shear rate than to the temperature, and the improvement of the shear rate in the processing process can effectively improve the processing fluidity of PET and PBT than the increase of the temperature. Therefore, an extruding device for producing the ultraviolet-resistant PET transparent sheet is needed, the feeding of an extruder of the existing production equipment for producing the PET transparent sheet mostly falls into a charging barrel by gravity, and the feeding speed is slow, so that the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an uvioresistant PET transparent sheet production facility aims at improving the problem that the extruder feed efficiency of uvioresistant PET transparent sheet production facility is low.

The utility model discloses a realize like this:

an anti-ultraviolet PET transparent sheet production device comprises an extruder, wherein the extruder comprises a base, a charging barrel, a driving motor, a screw and a vacuum feeding device, the charging barrel is installed on the base, a plurality of heating layers are axially arranged on the outer side of the charging barrel, one end of the screw, which is installed in the charging barrel, is connected with the driving motor installed on the base, and the charging barrel is provided with the vacuum feeding device;

a feed bin is arranged in the vacuum feeding device, a discharge port is arranged at the bottom of the feed bin, is connected with the feed cylinder and is provided with a discharge valve, the discharge port is connected with a feeding barrel through a feeding pipe and is provided with a feeding valve at the feeding pipe, the feeding barrel is arranged on a base, the middle part of the feed bin is also provided with a filter element, a vacuum centrifugal pump is arranged above the filter element, the vacuum centrifugal pump is connected with a vacuum tank through a vacuum air pipe, and a vacuum air tank is arranged outside the;

the vacuum feeding device improves the feeding efficiency of the extruder, so that the production efficiency of the whole ultraviolet-resistant PET transparent sheet production line is improved.

Further, an exhaust channel is arranged on the charging barrel, and a heating device is arranged outside the charging barrel; the PET material can produce a large amount of flue gas when heating extrusion, and the flue gas that produces in the feed cylinder is discharged through the exhaust passage in order to guarantee the quality of the PET material of extruding.

Furthermore, the heating device is divided into three parts, and each heating device is provided with a temperature sensor connected to the inside of the charging barrel; the temperatures of the feed and melt sections of the screw and the temperature of the sections of the extrusion section should be controlled differently depending on the material properties.

Further, the shell of the storage bin and the charging barrel are made of stainless steel materials; effectively reduce the corrosion of the feed bin and the charging barrel.

Furthermore, the charging barrel is in a funnel shape and is internally provided with a volume scale mark, and the feeding pipe is connected to the bottom of the charging barrel; add the feed bin and have the measurement function and conveniently stir ingredients, the inlet pipe is connected and is convenient for the feeding in the bottom of the charging barrel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up vacuum feeding device in extruder top and improved the feed efficiency of production PET transparent sheet production facility to the work efficiency of whole production line has been improved, and this extruder occupies small easily installation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic perspective view of an apparatus for producing an ultraviolet-resistant PET transparent sheet according to the present invention;

FIG. 2 is a top view of the production equipment of the anti-ultraviolet PET transparent sheet material of the utility model;

fig. 3 is a half sectional view of the ultraviolet-resistant PET transparent sheet production apparatus shown in fig. 2, taken along a longitudinal center plane.

In the figure: 1. a base; 2. a charging barrel; 21. an exhaust passage; 22. a heating device; 221. A temperature sensor; 3. a screw; 4. a drive motor; 5. a vacuum feeding device; 51. A storage bin; 511. a discharge port; 512. a discharge valve; 513. a filter element; 514. a vacuum centrifugal pump; 515. a vacuum gas pipe; 516. a vacuum tank; 517. a vacuum tank air valve; 52. A feed pipe; 521. a feed valve; 53. a charging barrel.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, in the embodiment of the present invention,

an ultraviolet-resistant PET transparent sheet production device comprises an extruder, wherein the extruder comprises a base 1, a material barrel 2, a driving motor 3, a screw rod 4 and a vacuum feeding device 5, the material barrel 2 is installed on the base 1, the screw rod 4 is installed inside the material barrel 2, the other end of the screw rod 4 is connected with the driving motor 3 installed on the base 1, an exhaust channel 21 is further arranged on the material barrel 2, a large amount of smoke can be generated when the PET material is heated and extruded, and the smoke generated in the material barrel is exhausted through the exhaust channel 21 to ensure the quality of the extruded PET material; three sections of heating devices 22 are arranged outside the charging barrel 2, and each heating device 22 is provided with a temperature sensor 221 and is connected to the inside of the charging barrel 2; because the temperatures of the feeding section and the melting section of the screw 4 and the temperatures of the sections of the extrusion section are controlled to be different according to the material characteristics, the charging barrel 2 is also provided with a vacuum feeding device 5;

a stainless steel bin 51 is arranged in the vacuum feeding device 5, the upper end of the bin 51 is a cylindrical barrel, the lower end of the cylindrical barrel is funnel-shaped, a discharging port 511 is arranged at the bottom of the bin, the bottom of the discharging port 511 is communicated with the charging barrel 2, a discharging valve 512 is arranged between the discharging valve 512 and the charging barrel 2, the discharging valve 512 is a common electromagnetic valve, the upper end of the discharging port 511 is connected with the bottom of a feeding barrel 53 through a flexible feeding pipe 52, a feeding valve 521 is arranged on the feeding pipe 52, the feeding barrel 53 is arranged on the base 1, the feeding barrel 53 is funnel-shaped and is internally provided with a volume; the feeding barrel 53 has a metering function, so that accurate proportioning feeding is convenient to perform, the feeding pipe 52 is connected to the bottom of the feeding barrel 53, so that feeding is thorough and clean, residual materials at the bottom of the feeding barrel 53 are prevented, and the shells of the feeding barrel 53 and the storage bin 51 are made of stainless steel materials, so that the corrosion of raw materials to the feeding barrel 53 and the storage bin 51 is reduced;

the middle of the storage bin 51 is further provided with a filter element 513, the filter element 513 is detachably mounted in the storage bin, the filter element 513 is used for filtering dust and sundries generated in the storage bin, when the dust and the sundries are excessive, the filter element 513 can be detached to be cleaned after the filter effect of the filter element 513 is influenced, a vacuum centrifugal pump 514 is arranged above the filter element 513, an air outlet of the vacuum centrifugal pump 514 is connected with an air inlet of a vacuum tank 516 through a vacuum air pipe 515, and the side face of the vacuum tank 516 is mounted on the outer side of the storage bin.

The working principle is as follows: the production process of PET mainly comprises the steps of raw material crystallization, drying, extrusion plasticization, tabletting and shaping, and product winding, wherein the equipment mainly applied in the steps comprises a crystallization tower, a drying tower, an extruder, a nose, a tablet press, a winding machine and the like, wherein the extrusion plasticization is an important link, and the production equipment used for extrusion plasticization is the extruder; the PET is crystallized and dried to become a high polymer with an obvious melting point, the dried PET material is put into a feeding barrel 53 according to a certain proportion, then a feeding valve 521 is closed, then a discharging valve 512 at the bottom of a storage bin 51 is closed, a vacuum centrifugal pump 514 is started, the interior of the storage bin is vacuumized by the vacuum centrifugal pump 514, the pumped air is stored in a vacuum tank 516 through a vacuum air pipe 516, then an air valve 517 of the vacuum tank is closed, the feeding valve 521 of a feeding pipe 52 is opened, a next air flow is formed in vacuum, and the material is sucked into the storage bin 51 from the feeding pipe 52 by using negative pressure. Then open the bleeder valve 512 of feed bin 51 bottom, the material falls automatically because of the action of gravity, the material enters into feed cylinder 2, then open vacuum tank pneumatic valve 517, the material is blown down with higher speed and is entered into in the feed cylinder 2, in order to carry the efficiency of feeding, when the material enters into the feed cylinder completely, close atmospheric pressure balance in the bleeder valve 512 feed bin 51, after the material enters into feed cylinder 2, screw rod 4 is rotatory under driving motor 3's drive, begin the extrusion plastify of PET material, through controlling 3 section heating device 22's temperature with the temperature of the feeding section to the screw rod, the temperature of melting section and extrusion section carries out accurate control, in order to guarantee the quality that PET extrudes, the flue gas that the plastify production was extruded to the feed cylinder 2 is discharged through exhaust passage 21.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an anti ultraviolet PET transparent sheet production facility, includes the extruder, its characterized in that: the extruder comprises a base (1), a charging barrel (2), a driving motor (3), a screw (4) and a vacuum feeding device (5), wherein the charging barrel (2) is installed on the base (1), the screw (4) is installed at one end inside the charging barrel (2) and connected with the driving motor (3) installed on the base (1), and the vacuum feeding device (5) is arranged on the charging barrel (2).

2. The production equipment of the ultraviolet-resistant PET transparent sheet material as claimed in claim 1, wherein a bin (51) is arranged in the vacuum feeding device (5), a discharge port (511) is arranged at the bottom of the bin (51) and connected with the charging barrel (2) and a discharge valve (512) is arranged between the discharge port and the charging barrel, the discharge port (511) is connected with a charging barrel (53) through a feeding pipe (52) and provided with a feeding valve (521) through the feeding pipe (52), the charging barrel (53) is arranged on the base (1), a filter element (513) is further arranged in the middle of the bin (51), a vacuum centrifugal pump (514) is arranged above the filter element (513), the vacuum centrifugal pump (514) is connected with a vacuum tank (516) through a vacuum air pipe (515), and the vacuum tank (516) is arranged outside the bin.

3. The production equipment of the uvioresistant PET transparent sheet material according to the claim 1, characterized in that the material cylinder (2) is also provided with an exhaust channel (21), and the outer side of the material cylinder (2) is also provided with a heating device (22).

4. The apparatus for producing uvioresistant PET transparent sheet according to claim 3, characterized in that the heating device (22) is divided into three parts and each heating device (22) is provided with a temperature sensor (221) connected to the inside of the cylinder (2).

5. The production equipment of the uvioresistant PET transparent sheet material as claimed in claim 2, characterized in that the housing of the stock bin (51) is made of stainless steel material.

6. The apparatus for producing uvioresistant PET transparent sheet according to claim 5, wherein the feed tank (53) is funnel-shaped and has a volume scale mark provided therein, and the feed pipe (52) is connected to the bottom of the feed tank (53).