Device for controlling bubble gas flow channel

Abstract

The utility model provides a gas flow channel device for controlling film bubbles, which is applied to the field of film production and comprises an integral aluminum seat flow channel structure, a gas inlet and a gas outlet are arranged on one side of the integral aluminum seat flow channel structure, and a gas inlet flow channel communicated with the gas inlet and a gas outlet flow channel communicated with the gas outlet are arranged in the integral aluminum seat flow channel structure. A transfer runner and a vacuum generation nozzle are further arranged in the integral aluminum seat runner structure, a negative pressure runner is arranged at the negative pressure output end of the vacuum generation nozzle, and an exhaust port is fixed to the positive pressure output end of the vacuum generation nozzle; compared with the prior art, the air-entrapping function can be achieved, the thin film bubble air-reducing function can also be achieved on the premise that the air inlet and the air outlet are not increased, the overall structure is compact, the air quantity control flexibility is high, the production requirements of thin films of different specifications and types can be met, the market prospect is achieved, and the air-entrapping device is suitable for application and popularization.

Description

Technical Field

[0001] The present application relates to the field of film production, and in particular to a device for controlling film bubble gas flow channels. Background Art

[0002] In the production process of plastic films, the stable formation and control of film bubbles are crucial to product quality. Currently, traditional film bubble control technology has many problems in the gas flow device.

[0003] Existing bubble gas flow systems typically use a simple straight channel design. This single-direction gas flow within the channel allows for one-way gas supply, making it impossible to perform vacuuming operations and making it difficult to precisely deliver gas to different parts of the bubble. For example, in blown film production, this simple flow channel is unable to adjust the gas flow and pressure distribution in response to changes in bubble shape and thickness, resulting in uneven bubble thickness and poor product quality.

[0004] Secondly, existing devices have low precision in controlling gas flow, often only indirectly affecting the bubble's gas supply by adjusting the total air intake. This makes it difficult to precisely control the bubble's expansion speed and shape during production. For example, on high-speed production lines, inaccurate flow control can cause the bubble to rupture or wrinkle, reducing production efficiency and product quality.

[0005] With the continuous emergence of new plastic materials and special film products, the existing gas flow channel device is difficult to meet the diverse production needs, which restricts the development of the plastic film industry. Therefore, a gas flow channel device for controlling film bubbles is proposed. Utility Model Content

[0006] The purpose of the present application is to solve the technical problems that the existing membrane bubble gas flow channel has poor air supply accuracy, can only supply air in one direction, and cannot perform vacuum operation. Compared with the existing technology, a membrane bubble gas flow channel control device is provided, including an integral aluminum seat flow channel structure, an air inlet and an air outlet are provided on one side of the integral aluminum seat flow channel structure, an inlet flow channel connected to the air inlet and an outlet flow channel connected to the air outlet are provided in the integral aluminum seat flow channel structure, a transfer flow channel and a vacuum generating nozzle are also provided in the integral aluminum seat flow channel structure, a negative pressure flow channel is provided at the negative pressure output end of the vacuum generating nozzle, and an exhaust port is fixed at the positive pressure output end of the vacuum generating nozzle;

[0007] A vacuum air pushing valve is provided at one end of the vacuum generating nozzle away from the exhaust port, the input end of the vacuum generating nozzle is connected to the output end of the vacuum air pushing valve, the input end of the vacuum air pushing valve and the output end of the transfer flow channel are both fixed with an air pipe connector, and a connecting pipe is fixed between the two air pipe connectors;

[0008] Four groups of high-frequency solenoid valves for controlling the connectivity of the air channels and adjusting the flow rate are provided between the transfer flow channel, the inlet flow channel and the outlet flow channel. Two groups of high-frequency solenoid valves for controlling the connectivity of the air channels and adjusting the flow rate are provided between the outlet flow channel and the negative pressure flow channel.

[0009] Furthermore, one end of the inlet flow duct extends to the outside of the integral aluminum seat flow duct structure and is provided with an inlet flow duct inspection port, one end of the outlet flow duct extends to the outside of the integral aluminum seat flow duct structure and is provided with an outlet flow duct inspection port, and one end of the negative pressure flow duct extends to the outside of the integral aluminum seat flow duct structure and is provided with an exhaust flow duct inspection port.

[0010] Furthermore, the integral aluminum seat flow channel structure is an aluminum alloy structure, and the inlet flow channel, outlet flow channel, negative pressure flow channel and transfer flow channel in the integral aluminum seat flow channel structure are all columnar drilled groove structures.

[0011] Furthermore, four groups of outlet high-frequency solenoid valves are used to control the opening and closing of the connection between the inlet and outlet channels, the opening and closing of the connection between the inlet and transfer channels, the adjustment of the air intake volume of the air inlet, and the adjustment of the positive pressure air outlet volume of the air outlet.

[0012] Furthermore, the two groups of vacuum air intake high-frequency solenoid valves are respectively used to control the opening and closing of the communication state between the negative pressure flow channel and the outlet flow channel, and the adjustment of the negative pressure air intake volume of the outlet.

[0013] Compared with the existing technology, the advantages of this application are:

[0014] Compared with traditional technologies, this application can produce aeration function, and can also produce film bubble degassing function without increasing the air inlet and outlet. The overall structure is compact, the air volume control is highly flexible, and it can adapt to the production needs of films of different specifications and types. It has market prospects and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of this application;

[0016] Figure 2 A schematic diagram of the side structure of this application;

[0017] Figure 3 This is a schematic diagram of the internal structure of this application;

[0018] Figure 4 A schematic diagram of the internal gas flow during gas supply in this application;

[0019] Figure 5 This is a schematic diagram of the internal gas flow during air extraction in this application.

[0020] Description of the numbers in the figure:

[0021] 1. Air inlet; 101. Inlet flow channel; 2. Air outlet; 201. Outlet flow channel; 3. Exhaust port; 4. Inlet flow channel inspection port; 5. Outlet flow channel inspection port; 6. Flow channel substrate; 601. Transfer flow channel; 7. Vacuum air inlet high-frequency solenoid valve; 8. Outlet high-frequency solenoid valve; 9. Vacuum generating nozzle; 901. Negative pressure flow channel; 10. Vacuum air push valve; 11. Air pipe connector; 12. Connecting pipe; 13. Exhaust flow channel inspection port. DETAILED DESCRIPTION

[0022] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of this application.

[0023] Example 1:

[0024] The utility model provides a device for controlling the gas flow path of the membrane bubble. Figure 1 - Figure 5 , including a flow channel substrate 6, an air inlet 1 and an air outlet 2 are provided on one side of the flow channel substrate 6, an inlet flow channel 101 connected to the air inlet 1, and an outlet flow channel 201 connected to the air outlet 2 are provided in the flow channel substrate 6, a transfer flow channel 601 and a vacuum generating nozzle 9 are also provided in the flow channel substrate 6, a negative pressure flow channel 901 is provided at the negative pressure output end of the vacuum generating nozzle 9, and an exhaust port 3 is fixed to the positive pressure output end of the vacuum generating nozzle 9;

[0025] A vacuum air push valve 10 is provided at one end of the vacuum generating nozzle 9 away from the exhaust port 3. The input end of the vacuum generating nozzle 9 is connected to the output end of the vacuum air push valve 10. An air pipe connector 11 is fixed to the input end of the vacuum air push valve 10 and the output end of the transfer flow channel 601. A connecting pipe 12 is fixed between the two air pipe connectors 11.

[0026] Four groups of outlet high-frequency solenoid valves 8 for controlling the connectivity of the air channels and adjusting the flow rate are provided between the transfer flow channel 601, the inlet flow channel 101 and the outlet flow channel 201. Two groups of vacuum inlet high-frequency solenoid valves 7 for controlling the connectivity of the air channels and adjusting the flow rate are provided between the outlet flow channel 201 and the negative pressure flow channel 901.

[0027] See also Figure 3 It should be noted that, in order to facilitate the cleaning and maintenance of each air duct, one end of the inlet air duct 101 extends to the outside of the flow channel substrate 6 and is provided with an inlet air duct inspection port 4, one end of the outlet air duct 201 extends to the outside of the flow channel substrate 6 and is provided with an outlet air duct inspection port 5, and one end of the negative pressure flow channel 901 extends to the outside of the flow channel substrate 6 and is provided with an exhaust air duct inspection port 13.

[0028] The present application adopts a gas flow channel design, in which the flow channel substrate 6 is an aluminum alloy structure, and the inlet flow channel 101, outlet flow channel 201, negative pressure flow channel 901 and transfer flow channel 601 in the flow channel substrate 6 are all columnar drilled groove structures, which are manufactured by processing aluminum blocks, and the air inlet 1, air outlet 2, exhaust port 3, vacuum air inlet high-frequency solenoid valve 7, air outlet high-frequency solenoid valve 8, vacuum air push valve 10 and vacuum generating nozzle 9 are combined into one, which has a small size, saves installation space, has good heat dissipation effect, high control accuracy, and is not easy to age and leak, effectively improving the service life.

[0029] It should be noted that the four groups of outlet high-frequency solenoid valves 8 are respectively used to control the opening and closing of the connection status between the inlet flow channel 101 and the outlet flow channel 201, the opening and closing of the connection status between the inlet flow channel 101 and the transfer flow channel 601, the adjustment of the intake volume of the air inlet 1, and the adjustment of the positive pressure outlet volume of the air outlet 2; the two groups of vacuum air inlet high-frequency solenoid valves 7 are respectively used to control the opening and closing of the connection status between the negative pressure flow channel 901 and the outlet flow channel 201, and the adjustment of the negative pressure intake volume of the air outlet 2.

[0030] For details, see Figure 5 When it is necessary to add gas during the film production process, the two groups of vacuum air inlet high-frequency solenoid valves 7 remain closed, and the gas enters the inlet flow channel 101 through the air inlet 1. The four groups of air outlet high-frequency solenoid valves 8 respectively control the inlet flow channel 101 to be disconnected from the transfer flow channel 601, and the inlet flow channel 101 to remain connected with the outlet flow channel 201, so that the gas is output from the air outlet No. 2 to the film bubble, generating a gas adding process. During this process, the air outlet high-frequency solenoid valve 8 controls the air inlet and outlet volume of the air inlet 1 and the air outlet 2, controls the gas output size, and accurately controls the expansion speed and shape of the film bubble during the production process, thereby avoiding the phenomenon of film bubble rupture or wrinkles due to uneven flow control, effectively improving production efficiency and product quality.

[0031] See also Figure 5When it is necessary to vacuum during the film production process, the gas enters the inlet flow channel 101 through the air inlet 1. At this time, the outlet high-frequency solenoid valve 8 controls the inlet flow channel 101 to remain connected with the transfer flow channel 601, and the inlet flow channel 101 is disconnected from the outlet flow channel 201. The vacuum inlet high-frequency solenoid valve 7 controls the outlet flow channel 201 to be connected with the negative pressure flow channel 901. The gas passes through the trachea connector 11 and the connecting pipe 12 to the vacuum push valve 10 in turn. After the gas in the vacuum push valve 10 enters the vacuum generating nozzle 9, when the high-speed fluid passes through the narrow channel of the vacuum generating nozzle 9, according to Bernoulli's principle, the speed of the fluid increases and the pressure decreases, forming a low-pressure area in the negative pressure flow channel 901 of the vacuum generating nozzle 9. The low-pressure area can suck out the gas in the flow channel 201, thereby generating a vacuum. At the same time, the positive-pressure gas in the vacuum generating nozzle 9 is discharged from the exhaust port 3, generating a film bubble degassing process, further improving production efficiency and product quality.

[0032] Compared with traditional technologies, this application can produce aeration function, and can also produce film bubble degassing function without increasing the air inlet 1 and the air outlet 2. The overall structure is compact, the air volume control is highly flexible, and it can adapt to the production needs of films of different specifications and types. It has market prospects and is suitable for promotion and application.

[0033] The above is only the best implementation method adopted by this application in combination with current actual needs, but the scope of protection of this application is not limited to this.

Claims

1. A device for controlling a gas flow channel of a film bubble, comprising an integral aluminum seat flow channel structure (6), wherein one side of the integral aluminum seat flow channel structure (6) is provided with an air inlet (1) and an air outlet (2), characterized in that: The integral aluminum seat flow channel structure (6) is provided with an inlet flow channel (101) connected to the air inlet (1) and an outlet flow channel (201) connected to the air outlet (2). The integral aluminum seat flow channel structure (6) is also provided with a transfer flow channel (601) and a vacuum generating nozzle (9). The negative pressure output end of the vacuum generating nozzle (9) is provided with a negative pressure flow channel (901), and the positive pressure output end of the vacuum generating nozzle (9) is fixed with an exhaust port (3); A vacuum air pushing valve (10) is provided at one end of the vacuum generating nozzle (9) away from the exhaust port (3); the input end of the vacuum generating nozzle (9) is connected to the output end of the vacuum air pushing valve (10); the input end of the vacuum air pushing valve (10) and the output end of the transfer flow channel (601) are both fixed with air pipe connectors (11); and a connecting pipe (12) is fixed between the two air pipe connectors (11); Four groups of high-frequency electromagnetic valves (8) for controlling the connection between the various air channels and adjusting the flow rate are provided between the transfer flow channel (601), the inlet flow channel (101) and the outlet flow channel (201), and two groups of high-frequency electromagnetic valves (7) for controlling the connection between the various air channels and adjusting the flow rate are provided between the outlet flow channel (201) and the negative pressure flow channel (901).

2. A bubble gas flow control device according to claim 1, characterized in that: One end of the inlet flow channel (101) extends to the outside of the integral aluminum seat flow channel structure (6) and is provided with an inlet flow channel inspection port (4); one end of the outlet flow channel (201) extends to the outside of the integral aluminum seat flow channel structure (6) and is provided with an outlet flow channel inspection port (5); and one end of the negative pressure flow channel (901) extends to the outside of the integral aluminum seat flow channel structure (6) and is provided with an exhaust flow channel inspection port (13).

3. A bubble gas flow control device according to claim 1, characterized in that: The integral aluminum seat flow channel structure (6) is an aluminum alloy structure, and the inlet flow channel (101), outlet flow channel (201), negative pressure flow channel (901) and transfer flow channel (601) in the integral aluminum seat flow channel structure (6) are all columnar drilled groove structures.

4. A device for controlling bubble gas flow channel according to claim 1, characterized in that: The four groups of high-frequency electromagnetic valves (8) for air outlet are respectively used to control the opening and closing of the connection state between the inlet flow channel (101) and the outlet flow channel (201), the opening and closing of the connection state between the inlet flow channel (101) and the transfer flow channel (601), the adjustment of the air intake volume of the air inlet (1), and the adjustment of the positive pressure air outlet volume of the air outlet (2).

5. The device for controlling the gas flow path of a membrane bubble according to claim 1, characterized in that: The two groups of vacuum air intake high-frequency electromagnetic valves (7) are respectively used to control the opening and closing of the communication state between the negative pressure flow channel (901) and the outlet flow channel (201), and to adjust the negative pressure air intake volume of the air outlet (2).

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