Aseptic bottle blowing device for PET (Polyethylene Terephthalate) bottles

Abstract

The utility model relates to the technical field of blow molding equipment, in particular to a PET (Polyethylene Terephthalate) bottle sterile blowing device which comprises a rack, a shunt pipe, a lifting driving component, a heating box, a flow guide component and a high-pressure gas storage tank, the rack is connected with the mold assembly. The flow dividing pipe is slidably connected with the rack and communicates with the air blowing pipe. The lifting driving assembly is connected with the rack and drives the flow dividing pipe to ascend and descend so that the air blowing pipe can stretch into the bottle preform. Heat conduction liquid is stored in the heating box, and a heater used for heating the heat conduction liquid is arranged in the heating box. The flow guide assembly is located in the heating box and located below the liquid level, and the input end of the flow guide assembly communicates with the output end of the air compressor. The input end of the high-pressure gas storage tank communicates with the output end of the flow guiding assembly, and the output end of the high-pressure gas storage tank communicates with the flow dividing pipe. In the actual use process, the air is heated and matched with the high-pressure air storage tank, so that the air is in a high-temperature and high-pressure environment to be quickly sterilized and disinfected, and viruses and bacteria are killed more thoroughly.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding equipment, in particular to an aseptic bottle blowing device for PET bottles. Background Art

[0002] Plastic bottles are mostly made by blow molding machines. During the blow molding process, special attention should be paid to the total amount and quality of air blown into the preform to ensure that no bacteria or viruses enter the bottle during the blow molding process.

[0003] The technical solution disclosed in the Chinese patent with authorization announcement number CN214111424U can disinfect and sterilize the gas in the gas tank by using an ultraviolet sterilization lamp in the gas tank in conjunction with an activated carbon plate, thereby ensuring that the gas flushed into the PET bottle is sterile and harmless, and avoiding the problem of bacterial residues inside the PET bottle.

[0004] However, the device still has some shortcomings: the ultraviolet lamp takes a long time to kill viruses and germs, the air flows through the irradiation area of ​​the ultraviolet lamp for a very short time, and the viruses and germs cannot be completely killed within this time range, and the activated carbon plate cannot disinfect extremely small viruses and germs. Utility Model Content

[0005] The utility model aims to provide a PET bottle aseptic bottle blowing device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is: a PET bottle aseptic bottle blowing device, comprising a frame, and the frame is connected to a mold component.

[0007] The shunt pipe is slidably connected with the frame and is connected with the air blowing pipe.

[0008] The lifting drive assembly is connected to the frame and drives the manifold to move up and down so as to extend the blowing pipe into the interior of the preform.

[0009] The heating box stores heat transfer fluid and is provided with a heater for heating the heat transfer fluid.

[0010] The flow guide component is located in the heating box and below the liquid surface, and the input end of the flow guide component is connected to the output end of the air compressor.

[0011] And a high-pressure gas storage tank, the input end of the high-pressure gas storage tank is connected with the output end of the guide component, and the output end of the high-pressure gas storage tank is connected with the shunt pipe.

[0012] Preferably, the mold assembly includes a mold A, a mold B and a bidirectional mold group. The mold A and the mold B are both slidably connected to the frame, and the bidirectional mold group is connected to the frame and drives the mold A and the mold B to move closer to or away from each other.

[0013] Preferably, the input end of the air compressor is connected to the output end of the air filter box.

[0014] Preferably, an air inlet hole connected to the interior of the air filter box is provided, a material receiving box slidably connected to the air filter box is provided in the air filter box, a through hole is provided on the bottom plate of the material receiving box, a filter screen is provided in the through hole, the air inlet hole is located above the filter screen, and the output end of the air filter box is located below the filter screen.

[0015] Preferably, a temperature sensor is provided in the heating box, the temperature sensor is electrically connected to a controller, and the controller controls the heater.

[0016] Preferably, a solenoid valve for controlling gas output is provided at the output end of the high-pressure gas storage tank, and a pressure sensor for detecting the internal air pressure is provided on the high-pressure gas storage tank, the pressure sensor is electrically connected to the controller, and the controller controls the connection between the solenoid valve and the air compressor.

[0017] Preferably, the flow guide component includes a heat conductor, a slow flow channel is arranged in the heat conduction plate, the output end of the slow flow channel is connected to the input end of the high-pressure gas storage tank, and the input end of the slow flow channel is connected to the output end of the air compressor.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] By setting a guide plate and a slow flow channel in the guide plate, the time for air to circulate in the guide plate is prolonged, thereby providing sufficient time for subsequent heating and disinfection of the air; by setting a heating box, a heat transfer liquid is poured into the heating box, and the heat transfer liquid is heated to 150 degrees Celsius through the heating plate. The ultra-high temperature is transmitted to the air circulating inside the heat transfer plate through the heat transfer plate, so that the air circulating in the heat transfer plate is sterilized and disinfected in a very short time through the ultra-high temperature. At the same time, the utility model also provides a high-pressure gas storage tank, and the high-temperature gas is pressed into the high-pressure gas storage tank, so that the air is in a high-temperature and high-pressure environment, thereby further killing the residual viruses and bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the connection structure between the air filter box and the high-pressure gas storage tank;

[0022] Figure 3 It is a schematic diagram of the internal structure of the heating box;

[0023] Figure 4 Schematic diagram of the internal structure of the heat conducting plate.

[0024] Figure numerals: 1. Frame; 2. Mold A; 3. Mold B; 4. Bidirectional module; 5. Diverter pipe; 6. Blowing pipe; 7. Hydraulic cylinder; 8. Air filter box; 801. Air inlet; 81. Receiving box; 82. Filter; 9. Air compressor; 10. Heat conduction plate; 1001. Slow flow channel; 11. Heating box; 12. Heater; 13. High-pressure gas storage tank. DETAILED DESCRIPTION

[0025] Embodiment 1

[0026] like Figure 1-Figure 4 As shown, the utility model proposes a PET bottle aseptic blowing device, including a frame 1, a shunt pipe 5, a lifting drive assembly, a heating box 11, a guide assembly and a high-pressure gas storage tank 13. The frame 1 is connected to the mold assembly. The mold assembly includes a mold A2, a mold B3 and a two-way module 4. The mold A2 and the mold B3 are both slidably connected to the frame 1, and the two-way module 4 is connected to the frame 1 and drives the mold A2 and the mold B3 to move closer or farther from each other. The shunt pipe 5 is slidably connected to the frame 1, and the shunt pipe 5 is connected to the blowing pipe 6. The lifting drive assembly includes but is not limited to a hydraulic cylinder 7, which is connected to the frame 1 and drives the shunt pipe 5 to rise and fall so as to extend the blowing pipe 6 into the interior of the bottle embryo. The heating box 11 stores heat transfer liquid, and the heating box 11 is provided with a heater 12 for heating the heat transfer liquid to 150 degrees Celsius. A temperature sensor is provided in the heating box 11, and the temperature sensor is electrically connected to the controller, and the controller controls the connection to the heater 12. The guide assembly is located in the heating box 11 and below the liquid surface. The flow guide assembly includes a heat conducting plate 10, in which a slow flow channel 1001 is arranged. The slow flow channel 1001 includes but is not limited to a Tesla valve-shaped channel of a reverse structure. The output end of the Tesla valve-shaped channel of the reverse structure is connected to the input end of the high-pressure gas storage tank 13, and the input end of the Tesla valve-shaped channel of the reverse structure is connected to the output end of the air compressor 9. The input end of the high-pressure gas storage tank 13 is connected to the output end of the flow guide assembly, and the output end of the high-pressure gas storage tank 13 is connected to the shunt pipe 5. The output end of the high-pressure gas storage tank 13 is provided with a solenoid valve for controlling the gas output, and the high-pressure gas storage tank 13 is provided with a pressure sensor for detecting the internal air pressure thereof, and the pressure sensor is electrically connected to the controller, and the controller controls the connection of the solenoid valve and the air compressor 9.

[0027] In this embodiment, the heater 12 is first started, and the heater 12 heats the heat transfer liquid to an ultra-high temperature of 150 degrees Celsius. Then the air compressor 9 is started, and the air compressor 9 injects air into the Tesla valve-shaped channel of the reverse structure in the heat transfer plate 10. The air slowly flows along the Tesla valve-shaped channel of the reverse structure. The air is heated up after heat exchange with the high-temperature heat transfer plate 10. At this time, the air is at a high temperature of 150 degrees Celsius. Viruses and bacteria are quickly killed in the ultra-high temperature environment. Since the structure of the slow channel 1001 provides a sufficient time length for high-temperature sterilization, the sterilized air is pressed into the high-pressure gas storage tank 13. The air is in a high temperature and high pressure environment, and the viruses and bacteria are completely killed. During blow molding, the preform is loaded into the closed mold A2 and mold B3 through the loading mechanism, and the diverter pipe 5 is pressed down by the hydraulic cylinder 7 so that each blowing pipe 6 is inserted into the preform on the corresponding side. Then, the solenoid valve of the high-pressure gas storage tank 13 is started to blow sterile and virus-free air into the preform. After the bottle is cooled and shaped, the two-way module 4 opens the mold A2 and mold B3, and the unloader takes out the bottle.

[0028] Embodiment 2

[0029] like Figure 1 and Figure 2 As shown, the utility model proposes an aseptic bottle blowing device for PET bottles. Compared with the first embodiment, the input end of the air compressor 9 is connected to the output end of the air filter box 8, the air filter box 8 is provided with an air inlet 801 connected with the interior thereof, the air filter box 8 is provided with a material receiving box 81 slidably connected thereto, the bottom plate of the material receiving box 81 is provided with a through hole, a filter screen 82 is provided in the through hole, the air inlet 801 is located above the filter screen 82, and the output end of the air filter box 8 is located below the filter screen 82.

[0030] In this embodiment, the filter 82 is used to filter the air so that the air entering the air compressor 9 does not contain impurities such as dust. When the impurities on the filter 82 accumulate to a certain amount and affect the air intake of the air compressor 9, the receiving box 81 is pulled out and the impurities trapped inside are cleaned up.

[0031] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A PET bottle aseptic blowing device, characterized in that: include A frame (1), the frame (1) is connected to the mold assembly; A shunt pipe (5), the shunt pipe (5) is slidably connected to the frame (1), and the shunt pipe (5) is connected to the air blowing pipe (6); A lifting drive assembly, the lifting drive assembly is connected to the frame (1) and drives the manifold (5) to move up and down so as to extend the blowing pipe (6) into the interior of the preform; A heating box (11), wherein heat transfer liquid is stored in the heating box (11), and a heater (12) for heating the heat transfer liquid is arranged in the heating box (11); A flow guide component, the flow guide component is located in the heating box (11) and below the liquid surface, and the input end of the flow guide component is connected to the output end of the air compressor (9); and a high-pressure gas storage tank (13), wherein the input end of the high-pressure gas storage tank (13) is connected to the output end of the flow guide component, and the output end of the high-pressure gas storage tank (13) is connected to the shunt pipe (5).

2. A PET bottle aseptic blowing device according to claim 1, characterized in that: The mold assembly comprises a mold A (2), a mold B (3) and a bidirectional mold group (4); the mold A (2) and the mold B (3) are both slidably connected to the frame (1), and the bidirectional mold group (4) is connected to the frame (1) and drives the mold A (2) and the mold B (3) to move closer to or farther away from each other.

3. A PET bottle aseptic blowing device according to claim 1, characterized in that: The input end of the air compressor (9) is connected to the output end of the air filter box (8).

4. A PET bottle aseptic blowing device according to claim 3, characterized in that: The air filter box (8) is provided with an air inlet hole (801) communicating with the interior thereof, a material receiving box (81) slidably connected to the air filter box (8) is provided inside the air filter box (8), a through hole is provided on the bottom plate of the material receiving box (81), a filter screen (82) is provided inside the through hole, the air inlet hole (801) is located above the filter screen (82), and an output end of the air filter box (8) is located below the filter screen (82).

5. The aseptic blowing device for PET bottles according to claim 1, characterized in that: A temperature sensor is arranged in the heating box (11), and the temperature sensor is electrically connected to a controller, and the controller controls the heater (12).

6. A PET bottle aseptic blowing device according to claim 5, characterized in that: An electromagnetic valve for controlling gas output is provided at the output end of the high-pressure gas storage tank (13), and a pressure sensor for detecting the internal gas pressure is provided on the high-pressure gas storage tank (13). The pressure sensor is electrically connected to a controller, and the controller controls the electromagnetic valve and the air compressor (9).

7. A PET bottle aseptic blowing device according to claim 1, characterized in that: The flow guide assembly comprises a heat conduction plate (10), a slow flow channel (1001) is arranged in the heat conduction plate (10), the output end of the slow flow channel (1001) is connected to the input end of the high-pressure gas storage tank (13), and the input end of the slow flow channel (1001) is connected to the output end of the air compressor (9).

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