Intelligent cooling device for film blowing machine

By designing an intelligent cooling device on the blown film machine and using an air diffuser to spread cold air, the problem of uneven cooling in the existing technology has been solved, achieving large-area cooling of the film and improving production efficiency and quality.

CN223573809UActive Publication Date: 2025-11-21XINYUAN FUJIAN PLASTIC CO LTD
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Patent Information

Application Number
CN202423070546.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-11-21
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

In existing blown film machines, the air outlet of the air duct is round when cooling the film, which means that the cold air can only quickly contact a local area of ​​the film and is difficult to blow quickly to the whole film. Especially for films with a large width, it is easy for adjacent film layers to stick together, which affects the production progress and quality.

Method used

An intelligent cooling device was designed, including a film conveyor, an air-cooled unit, a connecting pipe, a distribution pipe, and an air duct. The air outlet of the air duct is equipped with a detachable transition pipe and an air diffuser. The transition pipe adopts a structure that is narrow at the top and wide at the bottom. The air diffuser diffuses the cold air to achieve large-area cooling of the film. The air volume is intelligently controlled by a PLC control box.

Benefits of technology

This improves cooling efficiency, prevents film from sticking during winding, and enhances production efficiency and quality.

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Abstract

The utility model relates to the technical field of film cooling, in particular to an intelligent cooling device for a film blowing machine, which comprises a film conveyor, a feeding frame, an air cooling unit, a connecting pipe, a shunt pipe and an air pipe, the film conveyor is mounted on the air cooling unit, the feeding frame is positioned on one side of the film conveyor, the connecting pipe is arranged on the rear side of the air cooling unit, and the shunt pipe is arranged on the connecting pipe. The connecting pipe is connected with a flow dividing pipe, and a plurality of air pipes are arranged on the flow dividing pipe and located above the film conveyor. Air is discharged through the air cooling unit, cold air is guided into the air pipe through the flow dividing pipe under the action of the connecting pipe, the air pipe guides the cold air to the air cover through the transition pipe, and the cold air can be diffused and blown to the film conveyor through the structure that the upper portion of the air cover is narrow and the lower portion of the air cover is wide, so that the cooling area of a passing film is larger. The air-drying and cooling efficiency can be improved, and the phenomenon that the film is not prone to adhering after being wound by a winding machine subsequently can be prevented.
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Description

Technical Field

[0001] This utility model relates to the field of thin film cooling technology, and in particular to an intelligent cooling device for a blown film machine. Background Technology

[0002] In existing technology, blown film machines heat and melt plastic particles before blowing them into a thin film. There are many types of blown film machines, including those for PE, POF, and PVC, etc. Using brand-new particles results in virgin material, with uniform color and a clean appearance. The produced tubular film can be used as raw material for processing plastic bags. However, because the plastic film itself is quite hot after being produced by the blown film machine, directly winding it at this point can easily cause some adjacent plastic film layers to stick together. Therefore, some equipment uses air-cooling equipment to cool the plastic film.

[0003] In existing technologies, when cooling the produced film, the film is conveyed through a conveyor, and an air duct is installed above the conveyor to cool the film. However, the air outlet of the air duct is round, and the air blown out can only quickly contact a local area of ​​the film, making it difficult to quickly blow the air to the entire film. For some films with a larger width, they often enter the winding machine before they have been cooled by the air, which leads to frequent adhesion between adjacent plastic film layers. This technology is not practical, has low air drying and cooling efficiency, and affects production progress and production quality. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an intelligent cooling device for blown film machines.

[0006] To achieve the above objectives, the technical solution of this utility model is: an intelligent cooling device for a blown film machine, comprising: a film conveyor, a feeding rack, an air-cooling unit, a connecting pipe, a distribution pipe, and air ducts. The film conveyor is installed on the air-cooling unit, the feeding rack is located on one side of the film conveyor, and a connecting pipe is provided at the rear of the air-cooling unit. The connecting pipe is connected to the distribution pipe, and several air ducts are installed on the distribution pipe and located above the film conveyor. Among them, a detachable transition pipe is installed at the air outlet of the air duct, and an air expansion hood is connected to the lower side of the transition pipe. The air expansion hood adopts a structure that is narrow at the top and wide at the bottom.

[0007] Preferably, the transition pipe is detachably connected to the air duct via a locking clamp.

[0008] As a preferred option, a sealing ring is installed on the inner ring of the lock clamp.

[0009] As preferred, the valve disc, the plug, the plug rod, the rotating head, the nut sleeve are further included, the plug rod is arranged in the transition pipe and penetrates out of the transition pipe on both sides, one side of the plug rod penetrating out of the transition pipe is connected with the rotating head, and the other side is threadedly connected with the nut sleeve, the valve disc is arranged in the transition pipe, the plug is arranged on the valve disc and used for connecting with the plug rod, and the outer ring of the valve disc is attached to the inner wall of the transition pipe.

[0010] As preferred, the air cooling unit is provided with an automatic winding machine on one side.

[0011] As preferred, the automatic winding machine, the air cooling unit and the film conveying machine are all controlled to start and stop through the PLC control box.

[0012] As preferred, the air diffuser is located above the film conveying machine.

[0013] By adopting the technical scheme, the air diffuser is located above the film conveying machine.

[0014] The film on the film conveying machine can be cooled by air in a large area, the air outlet area is increased, and the cooling efficiency is improved,

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0016] It is obvious that the above purposes and other purposes, features and advantages of the present application will become more apparent after the description of the preferred embodiments of the present application with various drawings and drawings in the following.

[0017] In order to make the above beneficial effects and other purposes, features and advantages of the present application more apparent, one or more preferred embodiments are described below, and the drawings are shown, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application.

[0019] In the drawings, the same parts are marked with the same reference numerals, and the drawings are schematic and are not necessarily drawn according to the actual scale.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only represent one or some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the premise of not paying creative effort.

[0021] Figure 1 It is a structural schematic view of the intelligent cooling device for the film blowing machine.

[0022] Figure 2 It is a structural schematic view of the air diffuser cover.

[0023] Figure 3 It is a sectional structural schematic view of the air diffuser cover.

[0024] Figure 4 It is a structural schematic view of the valve flap.

[0025] Main figure mark explanation: film conveyor-1, feeding frame-2, air cooling unit-3, connecting pipe-4, shunt pipe-5, air pipe-6, transition pipe-7, air diffuser cover-8, locking hoop-9, valve flap-10, plug buckle-11, plug rod-12, rotating head-13, nut sleeve-14, automatic winding machine-15, PLC control box-16. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below with reference to the drawings and embodiments, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented. It should be noted that, as long as there is no conflict, each embodiment in the present application and each feature in each embodiment can be combined with each other, and the technical solutions formed are within the protection scope of the present application.

[0027] Meanwhile, in the following description, many specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without the specific details or in a manner other than the specific manner described.

[0028] Please refer to Figures 1-4The utility model provides a kind of intelligent cooling device for film blowing machine, it include: film conveyor 1, feeding frame 2, air cooling unit 3, connecting pipe 4, shunt pipe 5, air pipe 6, film conveyor 1 is installed on air cooling unit 3, feeding frame 2 is located film conveyor 1 side, air cooling unit 3 rear side is provided with connecting pipe 4, connecting pipe 4 is connected with shunt pipe 5, shunt pipe 5 is equipped with several air pipes 6 and located film conveyor 1 top;Wherein, the air outlet of air pipe 6 is equipped with detachable transition pipe 7, transition pipe 7 lower side is connected with air diffuser 8, air diffuser 8 uses upper narrow lower wide structure.

[0029] In use, the film produced by the film blowing machine is transported to the film conveyor 1 through the feeding frame 2, and the cold air is introduced into the air pipe 6 through the shunt pipe 5 under the action of the connecting pipe 4 during the process. The cold air is guided to the air diffuser 8 through the transition pipe 7. The narrow-top-wide-bottom structure of the air diffuser 8 allows the cold air to diffuse towards the film conveyor 1, enabling the film on the film conveyor 1 to be cooled in a large area. This design increases the air outlet area and improves the cooling efficiency.

[0030] According to some embodiments of the present application, the transition pipe 7 is detachably connected to the air pipe 6 through a lock clamp 9. This design enables stable connection when the transition pipe 7 is connected to the air pipe 6 and quick disassembly when the transition pipe 7 is detached.

[0031] According to some embodiments of the present application, a sealing ring is installed on the inner ring of the lock clamp 9. This design increases the airtightness between the transition pipe 7 and the air pipe 6 during connection, thereby preventing air leakage.

[0032] According to some embodiments of the present application, the utility model further includes a valve flap 10, a plug buckle 11, a plug rod 12, a rotating head 13, a nut sleeve 14, the plug rod 12 is fitted into the transition pipe 7 and passes out of the transition pipe 7 on both sides, one side of the plug rod 12 passing out of the transition pipe 7 on both sides is connected to the rotating head 13, and the other side is threadedly connected to the nut sleeve 14, the valve flap 10 is fitted into the transition pipe 7, the plug buckle 11 for connecting the plug rod 12 is installed on the valve flap 10, and the outer ring of the valve flap 10 is in close contact with the inner wall of the transition pipe 7. When it is necessary to individually adjust the air outlet of each transition pipe 7, loosen the nut sleeve 14 to cancel the limitation of the plug rod 12, then rotate the plug rod 12 by rotating the rotating head 13, and the valve flap 10 rotates in the transition pipe 7 under the action of the plug buckle 11. When the desired inclination is reached, tighten the nut sleeve 14 again to make it rotate and tightly fit on the outer sidewall of the transition pipe 7, and the valve flap 10 is fixed at the adjusted position, thereby realizing individual adjustment of the air outlet of each transition pipe 7. Some films do not need excessive air outlet of the transition pipe 7, so the air outlet of the transition pipe 7 can be closed or reduced at this time, which is more suitable and has lower limitations, and can also concentrate air outlet for rapid cooling.

[0033] According to some embodiments of the present application, the air cooling unit 3 is provided with an automatic winding machine 15 on one side. The function of winding the cooled film.

[0034] According to some embodiments of the present application, the automatic winding machine 15 and the air cooling unit 3 and the film conveyor 1 are all controlled by a PLC control box 16 to start and stop. The function of intelligently controlling the device to control the air outlet to cool the film.

[0035] According to some embodiments of the present application, the air diffuser 8 is located above the film conveyor 1. The function of expanding the area of the film on the film conveyor 1 when the air is blown.

[0036] It should be understood that the embodiments disclosed in the present application are not limited to the specific processing steps or materials disclosed herein, but should extend to such equivalent alternatives as understood by those skilled in the related art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only and do not mean to limit.

[0037] The "embodiments" mentioned in the specification mean that the specific features or characteristics described in conjunction with the embodiments are included in at least one embodiment of the present application. Therefore, the phrase or "embodiments" appearing throughout the specification does not necessarily mean the same embodiment.

[0038] In addition, the described features or characteristics can be combined into one or more embodiments in any other suitable way. In the above description, some specific details such as thickness, number, etc. are provided to provide a comprehensive understanding of the embodiments of the present application. However, those skilled in the related art will understand that the present application can be implemented without the above one or more specific details or can be implemented using other methods, components, materials, etc.

Claims

1. An intelligent cooling device for a film blowing machine, characterized in that, Include: Film conveyor (1), loading rack (2), air cooling unit (3), connecting pipe (4), shunt pipe (5), air pipe (6), film conveyor (1) is installed on air cooling unit (3), loading rack (2) is located on one side of film conveyor (1), air cooling unit (3) rear side is provided with connecting pipe (4), connecting pipe (4) is connected with shunt pipe (5), shunt pipe (5) is provided with a plurality of air pipes (6) and is located above film conveyor (1); Wherein, the air outlet of air pipe (6) is provided with detachable transition pipe (7), the lower side of transition pipe (7) is connected with air diffuser (8), air diffuser (8) adopts narrow upper and wide lower structure.

2. The intelligent cooling device for a film blowing machine according to claim 1, characterized in that, The transition pipe (7) is detachably connected with the air pipe (6) through the lock hoop (9).

3. The intelligent cooling device for a film blowing machine according to claim 2, characterized in that, The inner ring of the lock hoop (9) is provided with a sealing ring.

4. The intelligent cooling device for a film blowing machine according to claim 1, characterized in that, It also includes valve (10), plug buckle (11), plug rod (12), rotating head (13), nut sleeve (14), plug rod (12) is matched into the transition pipe (7) and the both sides are out of the transition pipe (7), one side of the plug rod (12) out of the transition pipe (7) is connected with the rotating head (13), the other side is connected with the nut sleeve (14), the valve (10) is matched into the transition pipe (7), the valve (10) is provided with plug buckle (11) for connecting with plug rod (12), the outer ring of valve (10) is matched with the inner wall of transition pipe (7).

5. The intelligent cooling device for a film blowing machine according to claim 1, characterized in that, Air cooling unit (3) is provided with automatic winding machine (15) on one side.

6. An intelligent cooling device for a film blowing machine as claimed in claim 5, wherein, The automatic winding machine (15) and the air cooling unit (3) and the film conveyor (1) are controlled to start and stop by the PLC control box (16).

7. The intelligent cooling device for a film blowing machine according to claim 1, wherein, Air diffuser (8) is located above the film conveyor (1).