CN217834715U

CN217834715U - Air ring of film blowing machine

Info

Publication number: CN217834715U
Application number: CN202221766875.9U
Authority: CN
Inventors: 胡志荣
Original assignee: Dongguan Yuexing Packaging Materials Co ltd
Current assignee: Dongguan Yuexing Packaging Materials Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-11-18
Anticipated expiration: 2032-07-11

Abstract

The utility model relates to a inflation film manufacturing machine wind ring, it includes wind ring and leeward ring, the wind ring with the wind ring can be dismantled down and connect and form the water conservancy diversion chamber, leeward ring periphery side is connected with a plurality of nozzles, leeward ring internal side is provided with a plurality of air outlets, it is provided with and is located to rotate on the wind ring down the equal wind ring in water conservancy diversion chamber, the rigid coupling has a plurality of fins that are equidistant circumference array distribution with its axis on the equal wind ring, equal wind ring is located the inner circle in water conservancy diversion chamber, the outer lane in water conservancy diversion chamber is separated and is had the slow current chamber. This application has the wind speed difference that enables between the airflow velocity of different moments and reduces as far as possible to guaranteed the weighing and determining nature and the stability of the airflow velocity of output from the air outlet, and guaranteed the effect of the uniformity of film bubble thickness.

Description

Air ring of film blowing machine

Technical Field

The application relates to the technical field of film blowing devices, in particular to a wind ring of a film blowing machine.

Background

The air ring device is one of important parts in blow molding machine equipment, when the blow molding machine produces plastic films, molten raw materials are extruded through a die head firstly, then the films are blown through the air rings to form film bubbles, and cooling operation is carried out, the quality of the film bubbles determines the quality of the films produced by the blow molding machine to a great extent, the most influence is the uniformity of the thickness, and the like, and the forming quality of the film bubbles is influenced to a great extent by the air ring device.

In the actual working process of the blow molding machine, air blown in by the air inlet is mixed in the annular mixed air channel, and then blown out by the air outlet through hole to blow the film bubble, but in practical application, the air quantity is often uneven due to various reasons, so that the thickness of the film bubble is influenced, the product quality is influenced, the production is influenced, and the cost is increased.

Chinese patent No. CN215703364U in the related art proposes a double-layer wind ring and a film blowing machine, the double-layer wind ring comprising: the upper wind ring component is provided with a circular wind wall and a plurality of air inlets; the upper wind ring assembly and the lower wind ring assembly are detachably connected and form a diversion cavity, the air inlet is communicated to the diversion cavity, two runners are formed in the diversion cavity, each runner is provided with an air outlet, the air outlet is communicated with the film bubble channel, the lower wind ring assembly is provided with two annular diversion blades, and the wind wall is positioned between the two diversion blades; and a plurality of air nozzles are arranged and are arranged in the air inlets in a one-to-one correspondence manner.

The related art described above has the following drawbacks: when supplying air to the water conservancy diversion cavity through a plurality of tuyeres, meet the air supply and supply unstablely, the phenomenon that the wind velocity reduces occasionally for the air current velocity of flow in the water conservancy diversion cavity makes the interior circulation suddenly high suddenly low, will lead to finally not invariable from the air outlet blowout to the air current velocity of flow in the membrane bubble passageway, will seriously influence the homogeneity of membrane bubble thickness, finally influence product quality.

SUMMERY OF THE UTILITY MODEL

In order to improve the unstable problem that leads to air outlet blowout air current velocity of flow not to be invariable that leads to through the wind speed in the tuyere entering water conservancy diversion chamber, this application provides a inflation film manufacturing machine wind ring.

The application provides a inflation film manufacturing machine wind ring adopts following technical scheme:

the utility model provides a inflation film manufacturing machine wind ring, includes last wind ring and leeward ring, go up the wind ring with the wind ring can be dismantled down and connect and form the water conservancy diversion chamber, leeward ring periphery side is connected with a plurality of nozzles, leeward ring periphery side is provided with a plurality of air outlets, leeward ring is last to rotate to be provided with and is located equal wind ring in the water conservancy diversion chamber, equal wind ring goes up the rigid coupling has a plurality of fins that are equidistant circumference array distribution with its axis, equal wind ring is located the inner circle in water conservancy diversion chamber, the outer lane in water conservancy diversion chamber is separated and is had the slow current chamber.

Furthermore, a ring cover is fixedly connected to the upper end face of the downwind ring, a spacer ring is fixedly connected to the inner ring of the ring cover, the spacer ring and the ring cover are arranged in the downwind ring to separate the slow flow cavity, the spacer ring and the bottom wall of the downwind ring are arranged at intervals to form an air passing opening, and the upwind ring is detachably connected to the spacer ring.

Furthermore, a plurality of air guide sheets which are arranged at equal intervals are arranged at the air passing opening of the lower air ring at intervals, and the plurality of air guide sheets are tangent to the concentric circle of the air equalizing ring.

Furthermore, the outer ring of the wind equalizing ring is a conical surface, and the distance from one end of the wing close to the outer ring of the lower wind ring to the outer wall of the wind equalizing ring is greater than the distance from one end of the wing close to the inner ring of the lower wind ring to the outer wall of the wind equalizing ring.

Furthermore, a wind blocking ring close to the upper edge of the wing is fixedly connected to one side of the upper wind ring close to the lower wind ring.

Furthermore, the lower air ring is provided with a plurality of air buffering rings which are staggered up and down in the air buffering cavity, an air buffering air channel is formed between the air buffering rings and the axial inner wall of the lower air ring which is arranged at intervals with the air buffering rings, and the air buffering air channel closest to the air equalizing ring and the air passing port are arranged oppositely along the axial direction of the lower air ring.

Further, the upwind ring is connected to the spacer ring in a threaded mode.

Furthermore, a plurality of bulges are fixedly connected to one side of the upper wind ring away from the lower wind ring.

To sum up, the beneficial technical effect of this application does: when an external air source inputs air flow into the flow guide cavity through the plurality of air nozzles, the air flow is slowly released in the slow flow cavity on the outer ring of the flow guide cavity, and even if the flow speed of the air flow input through the plurality of air nozzles changes suddenly, the change of the flow speed of the air flow is weakened under the action of the slow flow cavity; and when the moderated airflow circulates to the air-equalizing ring, the airflow blows on the wing pieces and can drive the air-equalizing ring to rotate, so that even if the flow rate of the supplied airflow drops suddenly, the inertia of the rotating air-equalizing ring can push the airflow to accelerate, the air speed difference between the flow rates of the airflow at different moments can be reduced as much as possible, the balance and stability of the flow rate of the airflow output from the air outlet are ensured, and the consistency of the thickness of the film bubble is ensured.

Drawings

Fig. 1 is a sectional view of the entire structure of an embodiment of the present application.

Reference numerals: 1. an upwind ring; 2. a lower wind ring; 3. a flow guide cavity; 4. a tuyere; 5. an air outlet; 6. a wind equalizing ring; 7. a fin; 8. a slow flow cavity; 9. a ring cover; 10. a spacer ring; 11. an air outlet; 12. a wind guide sheet; 13. a wind-shield ring; 14. a slow wind ring; 15. a slow air duct; 16. and (4) protruding.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application discloses inflation film manufacturing machine wind ring. Referring to fig. 1, the air ring of the film blowing machine comprises an upper air ring 1 and a lower air ring 2, the upper air ring 1 and the lower air ring 2 are detachably connected to form a flow guide cavity 3, the outer peripheral side of the lower air ring 2 is connected with a plurality of air nozzles 4, and the air nozzles 4 are distributed in an equidistant circumferential array manner along the axis of the lower air ring 2; the inner periphery side of the downwind ring 2 is provided with a plurality of air outlets 5, and the plurality of air outlets 5 are uniformly distributed on the inner ring of the downwind ring 2 in an array form.

Referring to fig. 1, the leeward ring 2 is rotatably provided with a wind equalizing ring 6 located in the diversion cavity 3, the wind equalizing ring 6 is fixedly connected with a plurality of fins 7 distributed in an equidistant circumferential array by the axis, the wind equalizing ring 6 is arranged on the inner ring of the diversion cavity 3, and the outer ring of the diversion cavity 3 is separated into a slow flow cavity 8. During specific setting, the outer ring of the wind equalizing ring 6 is set to be a conical surface, and the distance from one end, close to the outer ring of the lower wind ring 2, of the wing piece 7 to the outer wall of the wind equalizing ring 6 is larger than the distance from one end, close to the inner ring of the lower wind ring 2, of the wing piece 7 to the outer wall of the wind equalizing ring 6.

When an external air source inputs air flow into the flow guide cavity 3 through the air nozzles 4, the air flow is slowly released in the slow flow cavity 8 on the outer ring of the flow guide cavity 3, even if the flow speed of the air flow input through the air nozzles 4 changes suddenly, the change of the flow speed of the air flow is weakened under the action of the slow flow cavity 8; and when the moderated airflow flows to the air equalizing ring 6, the airflow blows on the fins 7 to drive the air equalizing ring 6 to rotate, so that even if the flow rate of the supplied airflow suddenly drops, the inertia of the rotating air equalizing ring 6 can also push the airflow to accelerate, the air speed difference between the flow rates of the airflow at different moments can be reduced as much as possible, the balance and stability of the flow rate of the airflow output from the air outlet 5 are ensured, and the consistency of the thickness of the film bubble is ensured. And the fins 7 are set to be unequal in width, so that the wind gathering phenomenon can be formed as much as possible, and the flow velocity of the air flow which is disturbed by the rotating wind equalizing ring 6 and the fins 7 and then integrally output to the air outlet 5 can be balanced as much as possible.

In order to reduce the local wind speed increase caused by the cross-flow of the airflow between two adjacent vanes 7 in the process that the vanes 7 drive the airflow to rotate, referring to fig. 1, a wind-blocking ring 13 close to the upper edge of the vane 7 is fixedly connected to one side of the windward ring 1 close to the lower wind ring 2.

Meanwhile, in specific setting, referring to fig. 1, an upper end face of the downwind ring 2 is fixedly connected with a ring cover 9, an inner ring of the ring cover 9 is fixedly connected with a spacer ring 10, the spacer ring 10 and the ring cover 9 separate a slow flow cavity 8 in the downwind ring 2, the spacer ring 10 and the axial bottom wall of the downwind ring 2 are arranged at intervals to form an air passing opening 11, and the upwind ring 1 is detachably connected to the spacer ring 10; in addition, in order to facilitate smooth rotation of the wind equalizing ring 6, a plurality of wind guide sheets 12 are arranged at intervals at the wind passing opening 11 of the lower wind ring 2, and the plurality of wind guide sheets 12 are tangent to the concentric circle of the wind equalizing ring 6.

After the arrangement, the air nozzles 4 input air into the slow flow cavity 8 for slow flow, and then blow the air to the fins 7 of the air-equalizing ring 6 through the air ports 11, and in the process, the air guide pieces 12 guide the air flow passing through the air ports 11 so that the air flow is blown to the fins 7 in an inclined manner, so that the convenient and stable rotation of the air-equalizing ring 6 can be realized.

In order to realize the slow flow effect when the air flow circulates in the slow flow cavity 8, referring to fig. 1, the lower air ring 2 is provided with a plurality of slow air rings 14 which are staggered up and down in the slow flow cavity 8, a slow air duct 15 is formed between the slow air ring 14 and the axial inner wall of the lower air ring 2 which is arranged at intervals with the slow air ring 14, and the slow air duct 15 which is closest to the air equalizing ring 6 and the air passing opening 11 are arranged oppositely along the axial direction of the lower air ring 2.

In this way, after the airflow entering the slow flow cavity 8 circulates through the plurality of slow air ducts 15 staggered up and down along the axial direction of the downwind ring 2, the circulation stroke of the airflow in the slow flow cavity 8 is increased, on one hand, the area of the slow flow cavity 8 adjacent to the air nozzle 4 can be filled with the airflow, and on the other hand, even if the flow rate of the airflow input by the air nozzle 4 changes suddenly, the flow rate of the airflow flowing to the air nozzle 11 is stable under the slow release action of the plurality of slow air ducts 15.

Finally, in order to realize convenient installation and disassembly of the windward ring 1, referring to fig. 1, the windward ring 1 is connected to the spacer ring 10 by screw threads, and one side of the windward ring 1 away from the bottom wind ring 2 is fixedly connected with a plurality of protrusions 16, so that the windward ring 1 can be smoothly rotated for installation and disassembly.

The implementation principle of inflation film manufacturing machine wind ring of the embodiment of this application does: when an external air source inputs air flow into the flow guide cavity 3 through the plurality of air nozzles 4, the air flow is slowly released in the slow flow cavity 8 on the outer ring of the flow guide cavity 3, and even if the flow rate of the air flow input through the plurality of air nozzles 4 is suddenly changed, the change of the flow rate of the air flow is weakened under the action of the slow flow cavity 8; and when the relaxed airflow flows to the air-equalizing ring 6, the airflow blows on the fins 7 to drive the air-equalizing ring 6 to rotate, so that even if the flow rate of the supplied airflow suddenly decreases, the inertia of the rotating air-equalizing ring 6 can also drive the airflow to accelerate, and the air speed difference between the flow rates of the airflows at different moments can be reduced as much as possible, thereby ensuring the balance and the stability of the flow rate of the airflow output from the air outlet 5, and ensuring the consistency of the thickness of the film bubble. And the fins 7 are set to be unequal in width, so that the wind gathering phenomenon can be formed as much as possible, and the flow velocity of the airflow which is disturbed by the rotating wind-equalizing ring 6 and the fins 7 and then integrally output to the air outlet 5 can be balanced as much as possible.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a inflation film manufacturing machine wind ring, includes last wind ring (1) and leeward ring (2), go up wind ring (1) with can dismantle down wind ring (2) and connect and form water conservancy diversion chamber (3), lower wind ring (2) periphery side is connected with a plurality of wind and chew (4), the periphery side is provided with a plurality of air outlets (5) down in wind ring (2), its characterized in that, it is provided with to rotate on lower wind ring (2) and is located even wind ring (6) in water conservancy diversion chamber (3), the rigid coupling has a plurality of fin (7) that are equidistant circumference array distribution with its axis on even wind ring (6), it locates to be all wind ring (6) the inner circle in water conservancy diversion chamber (3), the outer lane of water conservancy diversion chamber (3) is separated and is had slow flow chamber (8).

2. The blowing machine air ring according to claim 1, characterized in that a ring cover (9) is fixedly connected to the upper end face of the lower air ring (2), a spacer ring (10) is fixedly connected to the inner ring of the ring cover (9), the spacer ring (10) and the ring cover (9) separate the slow flow chamber (8) in the lower air ring (2), the spacer ring (10) and the bottom wall of the lower air ring (2) are arranged at an interval to form an air passing opening (11), and the upper air ring (1) is detachably connected to the spacer ring (10).

3. The film blowing machine wind ring according to claim 2, characterized in that a plurality of wind guiding sheets (12) arranged at equal intervals are arranged at the position of the wind passing opening (11) of the lower wind ring (2), and the plurality of wind guiding sheets (12) are tangent to a concentric circle of the wind equalizing ring (6).

4. The air ring of the film blowing machine according to claim 1, characterized in that the outer ring of the air equalizing ring (6) is designed as a conical surface, and the distance from one end of the wing (7) close to the outer ring of the lower air ring (2) to the outer wall of the air equalizing ring (6) is greater than the distance from one end of the wing (7) close to the inner ring of the lower air ring (2) to the outer wall of the air equalizing ring (6).

5. The air ring of the film blowing machine according to the claim 4, characterized in that one side of the upper air ring (1) close to the lower air ring (2) is fixedly connected with a wind-blocking ring (13) close to the upper edge of the fin (7).

6. The air ring of the film blowing machine according to claim 2, characterized in that the lower air ring (2) is provided with a plurality of vertically staggered slow air rings (14) in the slow flow cavity (8), a slow air duct (15) is formed between the slow air ring (14) and the axially inner wall of the lower air ring (2) which is arranged at an interval with the slow air ring, and the slow air duct (15) closest to the air equalizing ring (6) and the air passing opening (11) are arranged oppositely along the axial direction of the lower air ring (2).

7. A film blowing machine wind ring according to claim 2, characterized in that the wind ring (1) is screwed to the spacer ring (10).

8. The blowing machine air ring according to claim 7, characterized in that a plurality of protrusions (16) are fixedly connected to one side of the upper air ring (1) far away from the lower air ring (2).