Air ring structure of a film blowing machine

Abstract

The utility model relates to a film blowing machine technical field provides a kind of wind ring structure of film blowing machine, and cold fan is used in cooperation, comprising: annular pipe, multiple air outlets are opened on the inside of annular pipe, the inside of annular pipe is communicated with the air outlet of cold fan;Limiting ring, limiting ring is set in the top of annular pipe, and with annular pipe fixed connection;Multiple limiting rods, multiple limiting rods are along the circumferential interval arrangement of limiting ring, limiting rod is along lateral arrangement, the first end of limiting rod is connected with limiting ring, the second end of limiting rod is inserted to the inside of limiting ring, the second end of multiple limiting rods is formed annular limiting passage between it jointly.The utility model provides a kind of wind ring structure of film blowing machine, the second end of multiple limiting rods is formed annular limiting passage between it jointly, when blowing cooling, bubble will be limited in annular limiting passage to avoid appearing left and right swing, on the one hand, improve the quality of film product, on the other hand, also reduce the noise in workshop.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and specifically to an air ring structure for a blown film machine. Background Technology

[0002] Film blowing machines are used to heat and melt plastic particles and then blow them into thin films. The air ring is a crucial component of film blowing machines in plastic processing machinery, responsible for cooling and shaping the inflated film bubble. The air ring has a significant impact on the quality and yield of blown film products.

[0003] The current air ring structure lacks a limiting function when blowing air to cool the membrane bubble, which makes the membrane bubble prone to swaying from side to side. This will affect the quality of the film product and also generate a lot of noise in the workshop. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an air ring structure for a blown film machine that can limit the position of the film bubble during blown cooling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blown film machine air ring structure, used in conjunction with a cooler, comprising:

[0006] The annular tube has multiple air outlets on its inner side, and the interior of the annular tube is connected to the air outlet of the air cooler.

[0007] A limiting ring is disposed above the annular tube and is fixedly connected to the annular tube;

[0008] Multiple limiting rods are arranged at intervals along the circumference of the limiting ring. The limiting rods are arranged laterally. The first end of the limiting rod is connected to the limiting ring, and the second end of the limiting rod extends into the inner side of the limiting ring. The second ends of the multiple limiting rods together form an annular limiting channel.

[0009] Furthermore, the first end of the limiting rod is rotatably connected to the limiting ring, and the limiting ring is provided with an adjusting ring and multiple adjusting components;

[0010] The adjusting ring is disposed on the limiting ring and is rotatably connected to the limiting ring;

[0011] Multiple adjustment components are provided in a one-to-one correspondence with multiple limiting rods. Each adjustment component includes an adjustment rod and a guide post. The first end of the adjustment rod is fixedly connected to the adjustment ring, and the second end of the adjustment rod extends into the inner side of the limiting ring. The second end of the adjustment rod has a waist-shaped groove. The guide post is disposed in the waist-shaped groove and is adapted to the waist-shaped groove. The guide post is connected to the limiting rod.

[0012] Furthermore, the top of the limiting ring has multiple positioning grooves;

[0013] The adjusting ring is provided with a positioning block, the first end of the positioning block is rotatably connected to the adjusting ring, and the second end of the positioning block is adapted to the positioning groove.

[0014] Furthermore, it also includes a torsion spring that causes the second end of the positioning block to have a downward swing tendency.

[0015] Furthermore, the guide post is rotatably connected to the limiting rod.

[0016] Furthermore, the number of limiting rods is six.

[0017] The beneficial effects of this utility model are as follows: The blown film machine wind ring structure provided by this utility model has multiple limiting rods forming an annular limiting channel between their second ends. During blown cooling, the film bubble is confined within the annular limiting channel to prevent left and right swaying. This improves the quality of the film product and reduces noise in the workshop. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention and the membrane bubble;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention from a first-view perspective;

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0021] Figure 4 This is a front view structural diagram of the present utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the limiting ring.

[0023] Reference numerals: 10-ring pipe, 11-air outlet, 20-limiting ring, 21-connecting column, 22-positioning groove, 30-limiting rod, 40-ring limiting channel, 50-adjusting ring, 51-ring guide rail, 52-positioning block, 53-torsion spring, 60-adjusting assembly, 61-adjusting rod, 62-guide column, 63-waist-shaped groove, 70-membrane bubble. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In the description of this application, it should be understood that the terms "longitudinal", "horizontal", "level", "top", "bottom", "upper", "lower", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0028] like Figures 1-5 As shown, this utility model provides an air ring structure for a blown film machine, which is used in conjunction with a cooler and a blower, including an annular tube 10, a limiting ring 20, and multiple limiting rods 30.

[0029] The annular pipe 10 is arranged horizontally directly above the blown film machine. The annular pipe 10 is fixedly connected to the frame of the blown film machine. Multiple air outlets communicating with the interior of the annular pipe 10 are opened on the inner side of the annular pipe 10. The interior of the annular pipe 10 is connected to the air outlet 11 of the air cooler through a pipe.

[0030] The limiting ring 20 is positioned above the annular tube 10 and is fixedly connected to the annular tube 10 via a connecting post 21. The axis of the limiting ring 20 is collinear with the axis of the annular tube 10.

[0031] Multiple limiting rods 30 are arranged at equal intervals along the circumference of the limiting ring 20. The limiting rods 30 are arranged in the transverse direction. The first end of the limiting rod 30 is connected to the limiting ring 20, and the second end of the limiting rod 30 extends into the inner side of the limiting ring 20. The second ends of the multiple limiting rods 30 together form an annular limiting channel 40.

[0032] In use, the blown film machine and the winding machine start simultaneously. The end of the blown film bubble 70 passes through the annular tube 10 and the limiting ring 20 and then winds onto the winding machine. As the winding machine continuously winds the film bubble 70, it moves continuously. At this time, the cooling fan starts, and the cold air blown by the fan enters the annular tube 10 through a pipe and is ejected from multiple air outlets. The cold air is evenly blown onto the film bubble 70, allowing it to dissipate heat quickly and evenly. This rapid and even heat dissipation results in a film bubble 70 with good transparency and opening properties, thus improving the quality of the film bubble 70.

[0033] During air cooling, the second ends of multiple limiting rods 30 together form an annular limiting channel 40, which confines the film bubble 70 within the annular limiting channel 40 to prevent left and right swaying and improves stability. This improves the quality of the film product on the one hand, and reduces the noise in the workshop on the other.

[0034] In one embodiment, the first end of the limiting rod 30 is rotatably connected to the limiting ring 20. The limiting ring 20 is provided with an adjusting ring 6150 and a plurality of adjusting components 60.

[0035] The adjusting ring 6150 is mounted on the limiting ring 20 and is rotatably connected to the limiting ring 20. Specifically, an annular guide rail 51 is fixedly mounted on the inner side of the limiting ring 20, and an annular guide groove is opened on the adjusting ring 6150. The annular guide groove cooperates with the annular guide rail 51, so that the adjusting ring 6150 can rotate on the rotating ring.

[0036] Multiple adjusting components 60 are correspondingly arranged with multiple limiting rods 30. Each adjusting component 60 includes an adjusting rod and a guide post 62. The first end of the adjusting rod is fixedly connected to the adjusting ring 6150, and the second end of the adjusting rod extends into the inner side of the limiting ring 20. The second end of the adjusting rod has a waist-shaped groove 63. The guide post 62 is disposed in the waist-shaped groove 63 and conforms to the waist-shaped groove 63. The guide post 62 is connected to the limiting rod 30.

[0037] In this embodiment, the top of the limiting ring 20 has multiple downwardly extending positioning grooves 22.

[0038] The adjusting ring 6150 is provided with a positioning block 52. The first end of the positioning block 52 is rotatably connected to the adjusting ring 6150 via a rotating shaft, and the second end of the positioning block 52 is adapted to the positioning groove 22.

[0039] In the initial state, the second end of the positioning block 52 is inserted into the corresponding positioning slot 22.

[0040] Depending on different production needs, the specifications of the film bubbles 70 blown by the blown film machine will vary, thus requiring a corresponding adjustment to the size of the annular limiting channel 40. At this point, the operator can flip the positioning block 52, removing it from the positioning groove 22. Then, the operator rotates the adjusting ring 6150. Under the action of the adjusting rod, the waist-shaped groove 63, and the guide post 62, the second ends of the multiple limiting rods 30 will swing inward or outward synchronously, changing the size of the annular limiting channel 40 accordingly. When the size of the annular limiting channel 40 reaches the appropriate value, the operator inserts the second end of the positioning block 52 into the corresponding positioning groove 22, thus fixing the size of the annular limiting channel 40.

[0041] The design of this embodiment allows workers to quickly change the size of the annular limiting channel 40 to meet the needs of producing membrane bubbles 70 of different specifications.

[0042] In one embodiment, a torsion spring 53 is also included. The torsion spring 53 is sleeved on the rotating shaft. The first end of the torsion spring 53 is fixedly connected to the adjusting ring 6150, and the second end of the torsion spring 53 is fixedly connected to the positioning block 52. The torsion spring 53 causes the second end of the positioning block 52 to have a downward swing tendency.

[0043] Without the action of external force, the design of the torsion spring 53 can keep the second end of the positioning block 52 stably in the corresponding positioning groove 22 without loosening, thus ensuring that the size of the annular limiting channel 40 does not change at this time.

[0044] In one embodiment, the guide post 62 is rotatably connected to the limiting rod 30.

[0045] When the operator rotates the adjusting ring 6150, the guide post 62 will roll on the inner wall of the waist-shaped groove 63, thereby reducing the friction between the guide post 62 and the inner wall of the waist-shaped groove 63.

[0046] In one embodiment, the number of limiting rods 30 is six, in order to better maintain the roundness of the annular limiting channel 40.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure of air ring of a film blowing machine, used in cooperation with a cold air machine, characterized in that: include: The annular tube has multiple air outlets on its inner side, and the interior of the annular tube is connected to the air outlet of the air cooler. A limiting ring is disposed above the annular tube and is fixedly connected to the annular tube; Multiple limiting rods are arranged at intervals along the circumference of the limiting ring. The limiting rods are arranged laterally. The first end of the limiting rod is connected to the limiting ring, and the second end of the limiting rod extends into the inner side of the limiting ring. The second ends of the multiple limiting rods together form an annular limiting channel.

2. The air ring structure of a blown film machine according to claim 1, characterized in that: The first end of the limiting rod is rotatably connected to the limiting ring, and the limiting ring is provided with an adjusting ring and multiple adjusting components; The adjusting ring is disposed on the limiting ring and is rotatably connected to the limiting ring; Multiple adjustment components are provided in a one-to-one correspondence with multiple limiting rods. Each adjustment component includes an adjustment rod and a guide post. The first end of the adjustment rod is fixedly connected to the adjustment ring, and the second end of the adjustment rod extends into the inner side of the limiting ring. The second end of the adjustment rod has a waist-shaped groove. The guide post is disposed in the waist-shaped groove and is adapted to the waist-shaped groove. The guide post is connected to the limiting rod.

3. The air ring structure of a blown film machine according to claim 2, characterized in that: The top of the limiting ring has multiple positioning grooves; The adjusting ring is provided with a positioning block, the first end of the positioning block is rotatably connected to the adjusting ring, and the second end of the positioning block is adapted to the positioning groove.

4. The air ring structure of a blown film machine according to claim 3, characterized in that: It also includes a torsion spring that causes the second end of the positioning block to have a downward swing tendency.

5. The air ring structure of a blown film machine according to claim 2, characterized in that: The guide post is rotatably connected to the limiting rod.

6. The air ring structure of a blown film machine according to claim 1, characterized in that: The number of limiting rods is six.

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