An aerosol mixing microporous air outlet film blowing machine air ring

Abstract

The invention relates to an air ring for an aerosol mixing multi-microporous air outlet film blowing machine, which belongs to the technical field of film blowing machine accessories. The invention is characterized in that the air ring comprises an air ring body, an aerosol mixing chamber (3) and a cold air chamber (4) are arranged around the air ring body, the aerosol mixing chamber (3) and the cold air chamber (4) are arranged in sequence along the axial direction of the air ring body, the air ring body is provided with an upper air inlet (2) communicating with the cold air chamber (4) and a lower air inlet (1) communicating with the aerosol mixing chamber (3), the aerosol mixing chamber (3) is connected to the middle and lower parts of the film bubble channel (16) of the air ring body, the cold air chamber (4) is connected to the top of the film bubble channel (16), a heating element (6) is arranged in the cold air chamber (4), and a dry mist nozzle (5) is arranged in the aerosol mixing chamber (3). The air ring for the aerosol mixing multi-microporous air outlet film blowing machine can accurately control the cooling efficiency and cooling accuracy, and has a simple structure.

Description

Technical Field

[0001] The invention discloses an air ring of an aerosol mixing multi-microporous air outlet film blowing machine, belonging to the technical field of film blowing machine accessories. Background Art

[0002] The air ring of a film blowing machine is a crucial component of a film production line and a key factor in controlling film output and quality. For a long time, continuously increasing production capacity and reducing film center thickness have been the mainstream development trends in the film blowing industry. Cooling efficiency and control accuracy are key indicators of air ring performance. Over the years, through the dedicated efforts of numerous engineers at home and abroad, air rings have evolved from the original single-duct design to dual, triple, and quad-duct designs. Air ring thickness control has evolved from a fixed design to localized air volume and temperature control at the air ring outlet. However, as air ring performance improves, its design becomes increasingly complex, with numerous internal components. This increases processing complexity and manufacturing costs, leading to higher market prices and a heavy burden on downstream equipment users. To achieve higher performance and reduce costs, air rings for film blowing machines continue to require continuous improvement. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an air ring for an aerosol mixing multi-microporous air outlet film blowing machine which has good cooling efficiency and control accuracy and is simple to manufacture and low in cost.

[0004] The technical solution adopted by the present invention to solve its technical problems is: the aerosol mixing multi-microporous air outlet film blowing machine air ring is characterized in that: it includes an air ring main body, an aerosol mixing chamber and a cold air chamber are arranged around the air ring main body, the aerosol mixing chamber and the cold air chamber are arranged in sequence along the axial direction of the air ring main body, the air ring main body is provided with an upper air inlet connected to the cold air chamber and a lower air inlet connected to the aerosol mixing chamber, the aerosol mixing chamber is connected to the middle and lower parts of the film bubble channel of the air ring main body, the cold air chamber is connected to the top of the film bubble channel, a heating element is provided in the cold air chamber, and a dry mist nozzle is provided in the aerosol mixing chamber.

[0005] Preferably, the aerosol mixing chamber and the cold air chamber are both arranged around the membrane bubble channel.

[0006] Preferably, a flat blowing hole, a downward oblique blowing hole and an upper blowing hole are provided between the aerosol mixing chamber and the membrane bubble channel. The flat blowing hole, the downward oblique blowing hole and the upper blowing hole are arranged in sequence from bottom to top, and the flat blowing hole is arranged along the radial direction of the air ring body, the upper blowing hole is arranged along the axial direction of the air ring body, and the downward oblique blowing hole is inclined from bottom to top gradually approaching the middle part of the air ring body.

[0007] Preferably, an upper oblique blowing hole is provided between the cold air cavity and the membrane bubble channel, and the upper oblique blowing hole is inclined from bottom to top and gradually approaches the middle of the air ring body.

[0008] Preferably, a boss is provided around the inner wall of the bubble channel, with the boss forming an arc-shaped outward projection in the middle. The cold air chamber and the aerosol mixing chamber are connected to the bubble channel on either side of the boss, respectively. Aerosol entering the bubble channel from the aerosol mixing chamber passes through the boss, creating a Venturi effect. This creates negative pressure near the arc surface, causing the bubble to expand and widen, further improving cooling efficiency.

[0009] Preferably, the heating element is provided with a plurality of channels.

[0010] Preferably, a plurality of heating elements are arranged around the cold air cavity.

[0011] Preferably, a plurality of dry mist nozzles are arranged side by side and at intervals around the aerosol mixing chamber.

[0012] Preferably, a plurality of the lower air inlets and the upper air inlets are arranged at intervals around the air ring body.

[0013] Preferably, it further comprises a closing device for closing the upper air inlet and the lower air inlet, and the closing device is installed on the air ring body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The air ring of this aerosol-mixed, multi-porous air blower uses a heating element to regulate the temperature of the cold air chamber, thereby adjusting the air flow through the film bubble channel, thereby precisely controlling cooling efficiency and accuracy. When the film blowing machine requires a higher air volume, this is achieved by increasing the air supply of the external fan. When the film thickness is detected to be too thick or too thin in a certain area, the heating element increases the temperature at the corresponding thick spot, extending the film expansion and stretching time, thereby thinning the film at that location; conversely, the temperature is lowered. The air ring of this aerosol-mixed, multi-porous air blower has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main view of the air ring of the aerosol mixing microporous air outlet film blowing machine.

[0017] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0018] Figure 3 This is a top view of the air ring of the aerosol mixing microporous air outlet film blowing machine.

[0019] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0020] Figure 5 Schematic top view of the heating element.

[0021] Figure 6 It is a bottom view schematic diagram of the closure device.

[0022] Figure 7 This is a schematic front cross-sectional view of the connection between the inner gear ring and the outer mounting ring.

[0023] Figure 8 for Figure 7 A partial enlarged view of point C in the middle.

[0024] In the figure: 1, lower air inlet 2, upper air inlet 3, aerosol mixing chamber 4, cold air chamber 5, dry mist nozzle 6, heating element 601, channel 7, temperature control air chamber 8, flat blowing hole 9, lower oblique blowing hole 10, upper blowing hole 11, boss 12, upper oblique blowing hole 13, inner air ring 14, middle air ring 15, lower air ring 16, bubble channel 17, outer mounting ring 1701, outer slide 1702, mounting groove 18, inner mounting ring 1801, inner slide 19, rack 20, gear 21, baffle 22, inner gear ring 23, and limiting roller. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0026] Figures 1 to 8 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1 to 8 The present invention is further described.

[0027] An air ring for an aerosol mixing multi-microporous air outlet film blowing machine includes an air ring body, an aerosol mixing chamber 3 and a cold air chamber 4 arranged around the air ring body, the aerosol mixing chamber 3 and the cold air chamber 4 being arranged in sequence along the axial direction of the air ring body. The air ring body is provided with an upper air inlet 2 communicating with the cold air chamber 4 and a lower air inlet 1 communicating with the aerosol mixing chamber 3. The aerosol mixing chamber 3 is connected to the middle and lower portions of the film bubble channel 16 of the air ring body, and the cold air chamber 4 is connected to the top of the film bubble channel 16. A heating element 6 is provided in the cold air chamber 4, and a dry mist nozzle 5 is provided in the aerosol mixing chamber 3. The air ring of this aerosol mixing multi-microporous air outlet film blowing machine can adjust the temperature of the cold air chamber 4 through the heating element 6, thereby adjusting the gas flow through the film bubble channel 16, thereby accurately controlling the cooling efficiency and cooling accuracy. When the film blowing machine production requires a larger air volume, this is achieved by increasing the air supply of the external fan. When it is detected that the local film thickness is too thick or too thin, the heating element increases the temperature at the corresponding thick point position, prolongs the film expansion and stretching time, and thus makes the position thinner; conversely, the temperature is lowered, and the air ring structure of this aerosol mixing multi-microporous air outlet film blowing machine is simple.

[0028] Specific: such as Figures 1 to 4 As shown, the air ring body includes an inner tube, an outer tube, an inner air ring 13, a middle air ring 14, and a lower air ring 15. The inner tube is coaxially sleeved outside the outer tube, and the inner tube and the outer tube are spaced apart. The inner tube is stepped with a larger diameter at the top than at the bottom, while the outer tube is stepped with a smaller diameter at the top than at the bottom. The inner air ring 13, the middle air ring 14, and the lower air ring 15 are all arranged between the inner tube and the outer tube. The inner air ring 13 seals the tops of the inner and outer tubes. The middle air ring 14 is arranged below the shoulder of the outer tube and faces the shoulder of the inner tube. The middle air ring 14 is sealed to both the inner and outer tubes. The lower air ring 15 is arranged at the bottom of the inner and outer tubes and seals the bottoms of the inner and outer tubes. An aerosol mixing chamber 3 and a cold air chamber 4 are formed between the inner and outer tubes, wherein the aerosol mixing chamber 3 is located above the cold air chamber 4. A bubble channel 16 is formed in the inner tube.

[0029] A temperature-controlled air chamber 7 is formed between the upper portion of the outer tube and the upper portion of the inner tube. This chamber is located above the outer tube's shoulder, and its bottom communicates with the cold air chamber 4. A heating element 6 is mounted on the upper portion of the outer tube, with its heating portion extending into the temperature-controlled air chamber 7. Several channels 601 are provided on the heating portion of the heating element 6, and several heating elements 6 are arranged side by side around the temperature-controlled air chamber 7.

[0030] A boss 11 is provided around the inner wall of the inner cylinder. This boss 11 is an arc-shaped, convex center, and is positioned above the heating element 6. An inner air ring 13 is tapered, its diameter gradually decreasing from top to bottom. It is located above boss 11. Upper oblique blow holes 12 are provided on this inner air ring 13, connecting the temperature-controlled air chamber 7 with the film bubble passage 16. These upper oblique blow holes 12 are angled, gradually approaching the film bubble passage 16 from bottom to top. Several upper oblique blow holes 12 are spaced around the inner air ring 13.

[0031] The inner wall of the inner cylinder is provided with a flat blowing hole 8, a lower oblique blowing hole 9, and an upper blowing hole 10 that connect the aerosol mixing chamber 3 with the film bubble channel 16. The flat blowing hole 8 and the lower oblique blowing hole 9 are both provided at the lower part of the inner cylinder, and the flat blowing hole 8 is provided below the lower oblique blowing hole 9. The lower part of the inner cylinder is a cone with a gradually increasing diameter from bottom to top. Several flat blowing holes 8 are provided around the inner cylinder at intervals. The flat blowing holes 8 are provided along the radial direction of the film bubble channel 16. The lower oblique blowing holes 9 are inclined from bottom to top, gradually approaching the film bubble channel 16. Several lower oblique blowing holes 9 are provided around the inner cylinder at intervals. The upper blowing hole 10 is provided on the shoulder of the inner cylinder, and is provided along the axial direction of the film bubble channel 16. Several upper blowing holes 10 are provided around the inner cylinder at intervals.

[0032] The dry mist nozzle 5 is installed on the downwind ring 15 , and the top of the dry mist nozzle 15 extends into the aerosol mixing chamber 3 . The dry mist nozzle 5 is arranged around the downwind ring 15 at intervals of about 100.

[0033] The outer tube's shoulder is equipped with an upper air inlet 2, which communicates with the cold air chamber 4. Several upper air inlets 2 are evenly spaced around the outer tube. Lower air inlets 1, which communicate with the aerosol mixing chamber 3, are also spaced around the lower air ring 15. In this embodiment, the upper air inlets 2 correspond to the lower air inlets 1 one-to-one, with the lower air inlets 1 located directly below the corresponding upper air inlets 2.

[0034] like Figure 5 As shown: the heating element 6 is a rectangular parallelepiped, and a plurality of heating wires are arranged inside the heating element 6. A plurality of channels 601 are provided on the heating element 6 to form a heating portion. The heating portion extends to the bottom of the temperature-controlled air cavity 7, so that the cold air in the cold air cavity 4 enters the temperature-controlled air cavity 7 through the channels 601, thereby being able to accurately control the temperature of the air entering the temperature-controlled air cavity 7.

[0035] like Figures 6-8 As shown: The air ring of the aerosol mixing multi-porous air outlet film blowing machine also includes a closing device. Both ends of the air ring of the aerosol mixing multi-porous air outlet film blowing machine are provided with closing devices. The closing device at the upper end can close or open the upper air inlet 2, and the closing device at the lower end can close or open the lower air inlet 1.

[0036] The structure of the closing device corresponding to the upper air inlet 2 is the same as that of the closing device corresponding to the lower air inlet 1. In this embodiment, the structure of the closing device corresponding to the lower air inlet 1 is taken as an example to illustrate the structure of the closing device.

[0037] The closing device includes a baffle 21, a rack 19, a gear 20, an inner gear ring 22, an inner mounting ring 18, and an outer mounting ring 17. The inner mounting ring 18 and the outer mounting ring 17 are both mounted on the air ring body. The inner mounting ring 18 and the outer mounting ring 17 are coaxial and spaced apart, with the lower air inlet 1 disposed between the inner mounting ring 18 and the outer mounting ring 17. Each lower air inlet 1 is correspondingly provided with a baffle 21 to close it. Each baffle 21 is connected to a rack 19, which is arranged radially along the outer mounting ring 17. The outer mounting ring 17 is provided with an outer slide groove 1701, and the inner mounting ring 18 is provided with an inner slide groove 1801. One end of the rack 19 is slidably mounted in the outer slide groove 1701, and the other end is slidably mounted in the inner slide groove 1801. The baffle 21 moves synchronously with the corresponding rack 19 to open or close the corresponding lower air inlet 1. The gear 20 is rotatably mounted on the outer mounting ring 17, and the gear 20 is meshed with the corresponding rack 19. The inner ring gear 22 is coaxially mounted on the inner side of the outer mounting ring 17, and the inner ring gear 22 is meshed with each gear 20. By rotating the inner ring gear 22, the baffles 21 can be moved synchronously, thereby synchronously opening or closing each lower air inlet 1.

[0038] A mounting groove 1702 is provided around the inner wall of the outer mounting ring 17, and a plurality of limiting rollers 23 are rotatably installed at the top and bottom of the mounting groove 1702. The limiting rollers 23 are arranged along the radial direction of the outer mounting ring 17, and the outer side of the inner gear ring 22 is arranged between the limiting rollers 23 on the upper and lower sides of the mounting groove 1702, thereby realizing the axial limitation of the inner gear ring 23.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. An air ring for an aerosol mixing microporous air outlet film blowing machine, characterized by: The invention comprises an air ring body, an aerosol mixing chamber (3) and a cold air chamber (4) are arranged around the air ring body, the aerosol mixing chamber (3) and the cold air chamber (4) are arranged in sequence along the axial direction of the air ring body, an upper air inlet (2) communicating with the cold air chamber (4) and a lower air inlet (1) communicating with the aerosol mixing chamber (3) are arranged on the air ring body, the aerosol mixing chamber (3) is connected to the middle and lower parts of the bubble channel (16) of the air ring body, the cold air chamber (4) is connected to the top of the bubble channel (16), a heating element (6) is arranged in the cold air chamber (4), and a dry mist nozzle (5) is arranged in the aerosol mixing chamber (3); A flat blowing hole (8), a lower oblique blowing hole (9) and an upper blowing hole (10) are provided between the aerosol mixing chamber (3) and the film bubble channel (16). The flat blowing hole (8), the lower oblique blowing hole (9) and the upper blowing hole (10) are arranged in sequence from bottom to top, and the flat blowing hole (8) is arranged along the radial direction of the air ring body, the upper blowing hole (10) is arranged along the axial direction of the air ring body, and the lower oblique blowing hole (9) is inclined gradually approaching the middle part of the air ring body from bottom to top; The lower air inlet (1) and the upper air inlet (2) are both arranged in a plurality of intervals around the air ring body; It also includes a closing device for closing the upper air inlet (2) and the lower air inlet (1), and the closing device is installed on the air ring body; The closing device comprises a baffle (21), a rack (19), a gear (20), an inner gear ring (22), an inner mounting ring (18) and an outer mounting ring (17). The inner mounting ring (18) and the outer mounting ring (17) are both mounted on the air ring body. The inner mounting ring (18) and the outer mounting ring (17) are coaxial and spaced apart. The lower air inlet (1) is arranged between the inner mounting ring (18) and the outer mounting ring (17). Each lower air inlet (1) is correspondingly provided with a baffle (21) for closing it. (21) are connected to a rack (19), the rack (19) is arranged along the radial direction of the outer mounting ring (17), the outer mounting ring (17) is provided with an outer slide groove (1701), the inner mounting ring (18) is provided with an inner slide groove (1801), one end of the rack (19) is slidably mounted in the outer slide groove (1701), and the other end is slidably mounted in the inner slide groove (1801), and the baffle (21) moves synchronously with the corresponding rack (19) to open or close the corresponding lower air inlet (1); A boss (11) is provided around the inner wall of the film bubble channel (16), and the boss (11) is in the shape of an arc with a convex middle portion. The cold air chamber (4) and the aerosol mixing chamber (3) are respectively connected to the film bubble channel (16) on the upper and lower sides of the boss (11); An upper oblique blowing hole (12) is provided between the cold air cavity (4) and the film bubble channel (16), and the upper oblique blowing hole (12) is inclined from bottom to top and gradually approaches the middle of the air ring body; A temperature-controlled air chamber (7) is formed between the upper portion of the outer tube and the upper portion of the inner tube. The temperature-controlled air chamber (7) is arranged on the upper side of the shoulder of the outer tube, and the bottom of the temperature-controlled air chamber (7) is connected to the cold air chamber (4). The heating portion of the heating element (6) extends into the temperature-controlled air chamber (7).

2. The air ring of the aerosol mixing microporous air outlet film blowing machine according to claim 1 is characterized by: The aerosol mixing chamber (3) and the cold air chamber (4) are both arranged around the film bubble channel (16).

3. The air ring of the aerosol mixing microporous air outlet film blowing machine according to claim 1 is characterized in that: The heating element (6) is provided with a plurality of channels (601).

4. The air ring of the aerosol mixing microporous air outlet film blowing machine according to claim 1 or 3, characterized in that: A plurality of heating elements (6) are arranged around the cold air cavity (4).

5. The air ring of the aerosol mixing microporous air outlet film blowing machine according to claim 1 is characterized in that: A plurality of dry mist nozzles (5) are arranged side by side and at intervals around the aerosol mixing chamber (3).

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