CN215203442U

CN215203442U - Air-compensating rotary sealing box of film blowing machine

Info

Publication number: CN215203442U
Application number: CN202121309584.2U
Authority: CN
Inventors: 倪华秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-17
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to a can cooperate rotatory blown film aircraft nose to carry out rotatory airtight case of inflation film manufacturing machine tonifying qi of rotatory tonifying qi. This kind of rotatory secret case of inflation film manufacturing machine tonifying qi is including fixed outer loop and rotatory inner ring, its characterized in that: the rotary inner ring is rotatably arranged in the fixed outer ring, two sealing rings are arranged on the outer side surface of the rotary inner ring, the two sealing rings act on the inner side surface of the fixed outer ring and form a sealing cavity, an air inlet nozzle is arranged on the outer side surface of the fixed outer ring and is communicated with the sealing cavity, an air outlet nozzle used for being communicated with an air flow channel of the rotary die head is arranged on the inner side surface of the rotary inner ring, and the air outlet nozzle is communicated with the sealing cavity. The air-supplementing rotary sealing box of the film blowing machine can keep synchronous rotation with the rotary die head, so that the rotary die head can supplement air in a rotating state, and constant pressure and constant width of a film bubble can be guaranteed under the condition of air leakage or breakage.

Description

Air-compensating rotary sealing box of film blowing machine

Technical Field

The utility model relates to a inflation film manufacturing machine, concretely relates to inflation film manufacturing machine's air supplement unit.

Background

Along with the higher and higher requirements of life quality of people, the plastic film is also reflected on the plastic film. Due to the process change, the film bubble extrusion of the film blowing machine is changed from a fixed die head to a rotary die head so as to improve the uniformity and the smoothness of the film. In blown film production, it is required to maintain a certain pressure inside the bubble to maintain a constant width. Due to the existence of various factors of plastics, such as moisture and impurities or uneven rolling clamping rods, the film bubble leaks or breaks, and air is required to be supplemented in time to keep the width. The gas is supplied only in the state where the rotation of the die is stopped due to the rotation of the die, and thus the film blowing is performed normally, but the automatic constant gas pressure and width cannot be formed, which eventually leads to the deterioration of the quality of the film.

Disclosure of Invention

In view of the deficiencies in the prior art, the utility model provides a can cooperate rotatory blown film aircraft nose to carry out rotatory airtight case of inflation film manufacturing machine tonifying qi.

This kind of rotatory secret case of inflation film manufacturing machine tonifying qi is including fixed outer loop and rotatory inner ring, its characterized in that: the rotary inner ring is rotatably arranged in the fixed outer ring and is in transmission connection with the motor, two sealing rings are arranged on the outer side face of the rotary inner ring, the two sealing rings act on the inner side face of the fixed outer ring and form a sealed cavity, an air inlet nozzle is arranged on the outer side face of the fixed outer ring and is communicated with the sealed cavity, an air outlet nozzle used for being communicated with an air flow channel of the rotary die head is arranged on the inner side face of the rotary inner ring, and the air outlet nozzle is communicated with the sealed cavity.

The upper end of the rotating inner ring is provided with an outer edge extending towards the outer side, the lower end of the rotating inner ring is provided with an inner edge extending towards the inner side, a connecting ring is arranged below the fixed outer ring, the connecting ring is connected with the inner edge of the rotating inner ring through bolts, and the fixed outer ring is positioned between the connecting ring and the outer edge of the rotating inner ring.

According to the utility model provides a pair of airtight case of inflation film manufacturing machine tonifying qi can keep synchronous revolution with rotary die head to make rotary die head also can the tonifying qi under rotatory state, guarantee that the membrane bubble also can keep constant voltage and constant width under gas leakage or cracked condition.

Drawings

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

1. Fixing the outer ring; 2. rotating the inner ring; 3. a seal ring; 4. sealing the cavity; 5. a connecting ring; 10. an air inlet nozzle; 20. an air outlet nozzle; 21. an outer edge; 22. an inner edge.

Detailed Description

As shown in figure 1, the air-replenishing rotary sealing box of the film blowing machine is installed with a rotary die head of the film blowing machine, the rotary die head rotates to realize film blowing under normal conditions, when air leakage or breakage occurs to a film bubble, the rotary die head still keeps a rotary film blowing state, and the air-replenishing rotary sealing box of the film blowing machine replenishes air.

The air-replenishing rotary airtight box of the film blowing machine comprises a fixed outer ring 1 and a rotary inner ring 2, wherein the rotary inner ring 2 is rotatably arranged in the fixed outer ring 1, the rotary inner ring 2 is in transmission connection with a motor, two sealing rings 3 are arranged on the outer side surface of the rotary inner ring 2, the two sealing rings 3 act on the inner side surface of the fixed outer ring 1 and form a sealed cavity 4, an air inlet nozzle 10 is arranged on the outer side surface of the fixed outer ring 1, the air inlet nozzle 10 is communicated with the sealed cavity 4, an air outlet nozzle 20 is arranged on the inner side surface of the rotary inner ring 2, the air outlet nozzle 20 is communicated with the sealed cavity 4, and the air outlet nozzle 20 is communicated with an air flow channel of a rotary die head through a hose.

The working principle is as follows: when the bubble leaks or breaks, the motor drives the rotary inner ring 2 to rotate, and the air source enters the sealing cavity 4 through the air inlet nozzle 10, then comes out of the air outlet nozzle 20 and enters the airflow channel of the rotary die head through the hose, so that air is supplied. Through the structure, the rotary die head can supplement air in a rotating state, and the constant pressure and the constant width of the film bubble can be ensured under the condition of air leakage or breakage.

Finally worth mentioning, in order to prevent that rotatory inner ring 2 from taking place to remove in the axial, the utility model discloses have the outward flange 21 that extends to the outside in the upper end of rotatory inner ring 2, have the inward flange 22 that extends to the inboard at the lower extreme of rotatory inner ring 2, the below of fixed outer loop 1 is equipped with go-between 5, and go-between 5 passes through bolted connection with the inward flange 22 of rotatory inner ring 2, and fixed outer loop 1 just is located between the outward flange 21 of go-between 5 and rotatory inner ring 2. Fixed outer loop 1 is installed on the frame, and rotatory inner ring 2 receives the restriction in the axial, consequently can not take place the displacement, guarantees the stable in structure of the rotatory secret case of inflation film manufacturing machine.

Claims

1. Inflation film manufacturing machine tonifying qi is rotatory closely case, including fixed outer loop (1) and rotatory inner ring (2), its characterized in that: rotatory inner ring (2) rotationally establish in fixed outer loop (1), rotatory inner ring (2) are connected with motor drive, be equipped with two sealing washer (3) on the lateral surface of rotatory inner ring (2), two sealing washer (3) are used in on the medial surface of fixed outer loop (1) and form sealed chamber (4), be equipped with suction nozzle (10) on the lateral surface of fixed outer loop (1), suction nozzle (10) communicate with each other with sealed chamber (4), be equipped with on the medial surface of rotatory inner ring (2) and be used for the air current channel switch-on with rotatory die head play gas nozzle (20), it communicates with each other with sealed chamber (4) to go out gas nozzle (20).

2. The air-replenishing rotary airtight box of the film blowing machine according to claim 1, characterized in that: the upper end of rotatory inner ring (2) has outward side extension's outward flange (21), the lower extreme of rotatory inner ring (2) has inward side extension's inward flange (22), the below of fixed outer loop (1) is equipped with go-between (5), go-between (5) and rotatory inner ring (2) inward flange (22) pass through bolted connection, fixed outer loop (1) are located between go-between (5) and rotatory inner ring (2) outward flange (21).