CN212888334U

CN212888334U - Blow molding equipment for PE film production

Info

Publication number: CN212888334U
Application number: CN202020888313.6U
Authority: CN
Inventors: 李萍
Original assignee: Dongyang Ruiqi Adhesive Products Co ltd
Current assignee: Dongyang Ruiqi Adhesive Products Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-04-06
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a blow molding device for PE film production, which comprises a stirring mechanism and a blow molding mechanism, wherein the stirring mechanism comprises a stirring drum, a stirring assembly, a damping assembly and an air exhaust assembly, the air exhaust assembly comprises an air exhaust pump, an air exhaust pipe, a plurality of air guide pieces arranged in the stirring drum and a connecting piece for connecting the air guide pieces and the air exhaust pipe; the air in the mixing drum can be pumped by the air pump, and then bubbles in the polyethylene can be pumped out.

Description

Blow molding equipment for PE film production

Technical Field

The utility model belongs to the technical field of PE membrane processing, especially, relate to a blowing equipment is used in PE membrane production.

Background

In general, many articles for daily use are made of polymers, but although various products made of polymers provide convenience in daily life, most of the early polymers cannot be corroded and decomposed, and therefore, the products made of polymers such as plastics damage the environment. With the rising of environmental awareness, many everyday oral products have been replaced by some biodegradable materials in recent years, such as common PE films, i.e. polyethylene films, which refer to films produced by PE films. The PE film has moisture resistance and small moisture permeability. The polyethylene film (PE) can be used for manufacturing products with different properties such as low-density, medium-density and high-density polyethylene, crosslinked polyethylene and the like according to different manufacturing methods and control means. The general PE film can be processed by a blow molding device to form a tubular hollow film, and then the tubular hollow film is hot-pressed to form a bag body according to different use requirements, or the film is directly wound into a reel so as to be convenient for transportation and subsequent processing. However, in the processing process, after polyethylene is melted and stirred, and then is pressed into a blowing device, residual bubbles after stirring are still present in the molten polyethylene, and after the polyethylene is extruded, the polyethylene mixed with bubbles is easy to cause poor ductility and break during blowing, and cannot meet the requirement of blowing into a film, so that the waste of raw materials is great.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a blowing equipment is used in PE membrane production.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a blow molding device for PE film production comprises a stirring mechanism and a blow molding mechanism, wherein the stirring mechanism comprises a stirring drum, a stirring assembly, a damping assembly and an air extracting assembly, and the air extracting assembly comprises an air extracting pump, an air extracting pipe, a plurality of air guide pieces arranged in the stirring drum and a connecting piece for connecting the air guide pieces and the air extracting pipe; the air in the mixing drum can be pumped by the air pump, and then bubbles in the polyethylene can be pumped out.

Preferably, the stirring assembly comprises a stirring shaft, a plurality of sleeves arranged on the stirring shaft, a plurality of stirring rods arranged on the sleeves, and a driving piece for driving the stirring shaft to rotate.

Preferably, the air guide piece comprises an air guide tube, an air guide channel arranged in the air guide tube, an installation groove arranged on the air guide tube and a breathable film arranged in the installation groove; when the air duct rotates along with the stirring rod, air bubbles in the polyethylene enter the air guide channel through the air permeable membrane, and are drawn out under the air exhaust guide of the air exhaust pipe, so that the air bubbles in the polyethylene are discharged.

Preferably, the connecting piece is including locating a plurality of connecting rods on the churn inner wall, locating connecting pipe on the connecting rod and locating guard plate on the connecting pipe, the connecting pipe be equipped with air duct complex spout, connecting pipe and exhaust tube intercommunication.

Preferably, the damping component comprises a supporting plate arranged below the mixing drum, a plurality of supporting columns arranged on the supporting plate, a plurality of elastic telescopic rods arranged on the supporting columns and a buffer block arranged on the supporting columns.

In summary, the air in the mixing drum can be pumped by the air pump, so as to pump out the bubbles in the polyethylene.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a.

Fig. 4 is an enlarged view of fig. 2 at B.

Detailed Description

As shown in fig. 1-4, a blow molding device for producing PE films comprises a stirring mechanism and a blow molding mechanism, wherein the stirring mechanism comprises a stirring drum 1, a stirring assembly, a damping assembly and an air pumping assembly, a feeding pipe 11 is arranged on the side wall of the stirring drum 1, a valve is arranged in the feeding pipe, a discharging pipe 12 is arranged at the bottom of the side wall of the stirring drum and used for conveying polyethylene to the blow molding mechanism, and a valve is also arranged in the discharging pipe; the blow molding mechanism adopts a conventional blow molding device, and the specific structure is not described in detail.

Specifically, the stirring assembly comprises a stirring shaft 21, a sleeve 22, a stirring rod 23 and a driving piece 24, the lower end of the stirring shaft 21 is rotatably connected to the bottom of the stirring barrel, and the upper end of the stirring shaft is rotatably connected to the top of the stirring barrel; the driving piece 24 is a motor, and an output shaft of the driving piece is fixedly connected with the stirring shaft; the sleeve 22 is uniformly sleeved and fixed on the stirring shaft; the stirring rods 23 are uniformly fixed on the sleeve.

Specifically, the air extracting component comprises an air extracting pump 31, an air extracting pipe 32, an air guide piece and a connecting piece, wherein the air extracting pump 31 is a conventional air extracting pump and is fixed at the top of the stirring barrel; one end of the air suction pipe 32 is communicated with an air suction pump; specifically, the air guide piece comprises an air guide tube 331, an air guide channel 332, a mounting groove and an air permeable membrane 333, and the air guide tube 331 is fixed on the stirring rod; the air guide channel is arranged in the air guide pipe; the mounting groove is formed in the wall of the air guide pipe; the breathable film 333 is fixed in the mounting groove and only allows gas to pass through, but polyethylene cannot pass through; specifically, the connecting piece comprises a connecting rod 341, a connecting pipe 342 and a protection plate 343, and the connecting rod 341 is fixed on the inner wall of the mixing drum; the connecting pipe 342 is fixed on the end part of the air exhaust pipe, and is provided with a chute for the air guide pipe to insert and slide; the guard plate 343 chooses elastic rubber to make for use, guarantees suction, then in the air duct along with puddler pivoted in-process, the bubble in the polyethylene will enter into the air guide channel through the ventilated membrane, and under the guide of bleeding of exhaust tube, the bubble will be taken out, and then with the bubble discharge in the polyethylene.

Specifically, the damping component comprises a supporting plate 41, a supporting column 42, an elastic telescopic rod 43, a buffer block 44, an elastic piece 45 and a buffer plate 46, wherein the supporting plate 41 is arranged right below the mixing drum; the supporting columns 42 are uniformly distributed on the supporting plate in a surrounding manner; the elastic telescopic rods 43 are conventional metal elastic telescopic rods, preferably 4, one end of each elastic telescopic rod is hinged to the supporting column, and the other end of each elastic telescopic rod is hinged to the bottom of the stirring barrel; the buffer block 44 is made of rubber and is fixed on the top of the support column; the elastic member 45 is a spring, which is sleeved on the elastic telescopic rod respectively, and two ends of the elastic member are fixed on two ends of the elastic telescopic rod respectively; the buffer plate 46 is made of rubber and fixed to the bottom of the support plate, and a plurality of grooves 461 are formed in the bottom of the buffer plate.

Claims

1. The utility model provides a PE membrane production is with blowing equipment, includes rabbling mechanism and blowing mechanism, its characterized in that: the stirring mechanism comprises a stirring drum (1), a stirring assembly, a damping assembly and an air extracting assembly, wherein the air extracting assembly comprises an air extracting pump (31), an air extracting pipe (32), a plurality of air guiding pieces arranged in the stirring drum and a connecting piece connected with the air guiding pieces and the air extracting pipe.

2. The blow molding apparatus for PE film production according to claim 1, wherein: the stirring assembly comprises a stirring shaft (21), a plurality of sleeves (22) arranged on the stirring shaft (21), a plurality of stirring rods (23) arranged on the sleeves and a driving piece (24) for driving the stirring shaft to rotate.

3. The blow molding apparatus for PE film production according to claim 1, wherein: the air guide piece comprises an air guide tube (331), an air guide channel (332) arranged in the air guide tube, a mounting groove arranged on the air guide tube and a breathable film (333) arranged in the mounting groove.

4. The blow molding apparatus for PE film production according to claim 1, wherein: the connecting piece is including locating a plurality of connecting rods (341) on the churn inner wall, locating connecting pipe (342) on the connecting rod and locating guard plate (343) on the connecting pipe, the connecting pipe is equipped with the spout with air duct complex, connecting pipe and exhaust tube intercommunication.

5. The blow molding apparatus for PE film production according to claim 1, wherein: the shock absorption assembly comprises a supporting plate (41) arranged below the mixing drum, a plurality of supporting columns (42) arranged on the supporting plate (41), a plurality of elastic telescopic rods (43) arranged on the supporting columns and a buffer block (44) arranged on the supporting columns.