Film blowing equipment for PE packaging bag preparation

Abstract

The utility model discloses PE packaging bag preparation film blowing equipment which comprises a mixing structure, the outer side of the mixing structure is connected with a temperature adjusting structure, the inner side of the mixing structure is connected with a pressure adjusting structure, and the inner side of the pressure adjusting structure is connected with a blowing structure. The device has the beneficial effects that preliminary temperature regulation can be carried out through the arranged temperature regulation structure, gas is regulated to a proper temperature, then the gas is guided into the mixing structure, the gas in the mixing structure guides isobaric gas into the blowing structure through the regulation structure, and finally the isobaric isobaric gas is blown to a plastic film through the blowing structure.

Description

Technical Field

[0001] The utility model relates to the production technology and field of PE plastic films, and specifically to a film blowing device for preparing PE packaging bags. Background Art

[0002] Film blowing machine is a processing equipment that heats and melts plastic particles and then blows them into thin films. The traditional film blowing machine mainly consists of a machine body, a plastic particle feeding hopper installed on the machine body, a plastic particle heating and melting device connected to the plastic particle feeding hopper, a film blowing device connected to the plastic particle heating and melting device, a stretching and finishing device connected to the film blowing device, and a winding device connected to the stretching and finishing device.

[0003] Plastic film needs to be cooled during film blowing, but the adjustable range of the outlet temperature of the cooling ring in the prior art is small, and there may be problems of uneven gas outlet temperature and pressure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a PE packaging bag preparation film blowing device, which has the function of isobaric and isothermal regulation of the purged gas, thereby solving the problems existing in the prior art.

[0005] In order to achieve the above-mentioned function of isobaric and isothermal regulation of the purged gas, the specific technical solution adopted by the utility model is as follows:

[0006] A film blowing device for preparing PE packaging bags comprises a mixing structure, wherein the outer side of the mixing structure is connected to a temperature regulating structure, the inner side of the mixing structure is connected to a pressure regulating structure, and the inner side of the pressure regulating structure is connected to a blowing structure.

[0007] Furthermore, the mixing structure includes an outer wall of a mixing bin, an annular mixing bin, an inner wall of a mixing bin, a semiconductor annular heating plate, and a semiconductor annular cooling plate. One side of the outer wall of the mixing bin is the annular mixing bin, and the inner side of the annular mixing bin is the inner wall of the mixing bin.

[0008] Furthermore, a semiconductor annular heating plate is provided at one end of the annular mixing chamber, and a semiconductor annular cooling plate is provided at the other end of the annular mixing chamber.

[0009] Furthermore, the blowing structure includes a purge ring bin, an inclined blowing plate, and an outer wall of the purge bin. The inner side of the purge ring bin is provided with an inclined blowing plate, and the outer side of the purge ring bin is provided with an outer wall of the purge bin.

[0010] Furthermore, the pressure regulating structure includes a pressure regulating tube, a first solenoid valve, and a pressure reducing valve. The pressure regulating tube is connected to the first solenoid valve, and the first solenoid valve is connected to the pressure reducing valve via the pressure regulating tube.

[0011] Furthermore, the temperature control structure includes a vortex tube, an air inlet, a hot end, a cold end, a three-way pipe, a second solenoid valve, a third solenoid valve, and a temperature control tube. The vortex tube is respectively provided with an air inlet, a hot end, and a cold end. The vortex tube is connected to a compressed air pipeline through the air inlet.

[0012] Furthermore, the hot end is connected to the docking port on the outer wall of the mixing bin of the mixing structure through a pipeline, and the hot end is communicated with the annular mixing bin. The cold end is connected to a three-way pipe through a pipeline, and the two branch pipes of the three-way pipe are respectively connected to a second solenoid valve and a third solenoid valve.

[0013] Furthermore, the two branch pipes of the three-way pipe are respectively connected to a temperature regulating pipe and a gas storage tank, the three-way pipe is connected to the docking port of the outer wall of the mixing bin through the temperature regulating pipe, and the temperature regulating pipe is connected to the annular mixing bin through the outer wall of the mixing bin.

[0014] Compared with the prior art, the utility model provides a PE packaging bag preparation blown film equipment, which has the following

[0015] Beneficial effects:

[0016] The utility model can perform preliminary temperature adjustment through the temperature adjustment structure, adjust the gas to a suitable temperature, and then introduce it into the mixing structure. The gas in the mixing structure introduces the isobaric gas into the blowing structure through the adjustment structure, and finally blows the isobaric and isothermal gas onto the plastic film through the blowing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the main structure of a film blowing device for preparing PE packaging bags according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the mixed structure of the film blowing equipment for preparing PE packaging bags according to the embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the temperature regulating structure of the film blowing equipment for preparing PE packaging bags according to the embodiment of the utility model.

[0021] In the figure:

[0022] 1. Mixing structure; 101. Outer wall of mixing bin; 102. Annular mixing bin; 103. Inner wall of mixing bin; 104. Semiconductor annular heating plate; 105. Semiconductor annular cooling plate; 2. Blowing structure; 201. Blowing annular bin; 202. Oblique blowing plate; 203. Outer wall of blowing bin; 3. Pressure regulating structure; 301. Pressure regulating pipe; 302. First solenoid valve; 303. Pressure reducing valve; 4. Temperature regulating structure; 401. Vortex tube; 402. Air inlet; 403. Hot end; 404. Cold end; 405. Three-way pipe; 406. Second solenoid valve; 407. Third solenoid valve; 408. Temperature regulating pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3 As shown, it includes a mixing structure 1, a temperature regulating structure 4 is connected to the outside of the mixing structure 1, a pressure regulating structure 3 is connected to the inside of the mixing structure 1, and a blowing structure 2 is connected to the inside of the pressure regulating structure 3.

[0025] The temperature regulating structure 4 generates gas at a certain temperature and introduces it into the mixing structure 1. The mixing structure 1 further regulates the temperature of the introduced gas, and then introduces it into the blowing structure 2 at an equal pressure through the pressure regulating structure 3. The blowing structure 2 evenly introduces the gas onto the plastic film.

[0026] The mixing structure 1 includes a mixing chamber outer wall 101, an annular mixing chamber 102, a mixing chamber inner wall 103, a semiconductor annular heating plate 104, and a semiconductor annular cooling plate 105. One side of the mixing chamber outer wall 101 is the annular mixing chamber 102, the inner side of the annular mixing chamber 102 is the mixing chamber inner wall 103, one end of the annular mixing chamber 102 is provided with a semiconductor annular heating plate 104, and the other end of the annular mixing chamber 102 is provided with a semiconductor annular cooling plate 105.

[0027] The annular mixing chamber 102 performs preliminary temperature regulation of the internal pressure gas through the temperature regulating structure 4, and then monitors the gas temperature in real time through the internal temperature sensor, and then accurately adjusts the internal gas temperature according to actual needs through the semiconductor annular heating plate 104 and the semiconductor annular cooling plate 105, and then connects the pressure regulating structure 3 through the inner wall 103 of the mixing chamber to introduce it into the blowing structure 2.

[0028] The blowing structure 2 includes a purge ring chamber 201 , an oblique blowing plate 202 , and a purge chamber outer wall 203 . The oblique blowing plate 202 is installed on the inner side of the purge ring chamber 201 , and the purge chamber outer wall 203 is provided on the outer side of the purge ring chamber 201 .

[0029] The outer wall 203 of the purge bin of the blowing structure 2 is connected to the pressure regulating pipe 301, and then the gas with a certain temperature is directly blown onto the plastic film through the inclined blowing plate 202. The blowing here can be used for insulation as well as cooling, and its actual need is to be adjusted according to the temperature of the working environment.

[0030] The pressure regulating structure 3 includes a pressure regulating tube 301 , a first solenoid valve 302 , and a pressure reducing valve 303 . The pressure regulating tube 301 is connected to the first solenoid valve 302 , and the first solenoid valve 302 is connected to the pressure reducing valve 303 via the pressure regulating tube 301 .

[0031] The first solenoid valve 302 of the pressure regulating structure 3 controls the on-off of its pipeline, while the pressure reducing valve 303 can adjust the gas pressure required to be output by each connected pressure regulating pipe 301 to a consistent output pressure, so that the gas pressure introduced into the blowing structure 2 is more uniform.

[0032] The temperature control structure 4 includes a vortex tube 401, an air inlet 402, a hot end 403, a cold end 404, a three-way pipe 405, a second solenoid valve 406, a third solenoid valve 407, and a temperature control tube 408. The vortex tube 401 is respectively provided with an air inlet 402, a hot end 403, and a cold end 404. The vortex tube 401 is connected to the compressed air pipeline through the air inlet 402, and the hot end 403 is connected to the docking port of the outer wall 101 of the mixing chamber of the mixing structure 1 through a pipeline. 03 is connected with the annular mixing bin 102, and the cold end 404 is connected with the tee pipe 405 through a pipeline. The two branch pipes of the tee pipe 405 are respectively connected with the second solenoid valve 406 and the third solenoid valve 407, and the two branch pipes of the tee pipe 405 are respectively connected with the temperature regulating pipe 408 and the gas storage tank. The tee pipe 405 is connected to the docking port of the outer wall 101 of the mixing bin through the temperature regulating pipe 408, and the temperature regulating pipe 408 is connected with the annular mixing bin 102 through the outer wall 101 of the mixing bin.

[0033] The vortex tube 401 of the temperature control structure 4 introduces compressed air through the air inlet 402, and then passes through the hot end 403 and the cold end 404 to generate hot air and cold air respectively. The hot air is introduced into the annular mixing chamber 102 through the pipeline, and the cold air is introduced into the gas storage tank through the three-way pipe 405 according to actual needs to control the corresponding second solenoid valve 406 and the third solenoid valve 407 to be on and off to make it enter the gas storage tank or through the temperature control pipe 408 to introduce it into the annular mixing chamber 102 for gas temperature regulation.

[0034] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0035] In summary, with the aid of the above technical solution of the utility model, the vortex tube 401 of the temperature regulating structure 4 introduces compressed air through the air inlet 402, and then passes through the hot end 403 and the cold end 404 to generate hot air and cold air respectively. The hot air is introduced into the annular mixing chamber 102 through the pipeline, and the cold air is introduced into the gas storage tank or introduced into the annular mixing chamber 102 through the temperature regulating pipe 408 to adjust the temperature of the gas through the three-way pipe 405 according to actual needs to control the corresponding second solenoid valve 406 and the third solenoid valve 407. The temperature of the gas is adjusted. The annular mixing chamber 102 performs preliminary temperature adjustment on the internal pressure gas through the temperature regulating structure 4, and then the gas temperature is monitored in real time through the internal temperature sensor, and then the temperature is adjusted through the semiconductor annular heating plate 104 and the semiconductor annular cooling plate 105 accurately adjust the internal gas temperature according to actual needs, and then connect the pressure regulating structure 3 to introduce it into the blowing structure 2 through the inner wall 103 of the mixing chamber. The first solenoid valve 302 of the pressure regulating structure 3 controls the on-off of its pipeline, and the pressure reducing valve 303 can adjust the air pressure required to be output by each connected pressure regulating pipe 301 to a consistent output pressure, so that the gas pressure introduced into the blowing structure 2 is more uniform. The outer wall 203 of the purge chamber of the blowing structure 2 is connected to the pressure regulating pipe 301, and then the gas with a certain temperature is directly blown onto the plastic film through the inclined blowing plate 202. The blowing here can be used for insulation and cooling, and it actually needs to be adjusted according to the temperature of the working environment.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PE packaging bag preparation blown film equipment, characterized in that: It comprises a mixing structure (1), wherein the outer side of the mixing structure (1) is connected to a temperature regulating structure (4), the inner side of the mixing structure (1) is connected to a pressure regulating structure (3), and the inner side of the pressure regulating structure (3) is connected to a blowing structure (2); The mixing structure (1) comprises a mixing chamber outer wall (101), an annular mixing chamber (102), a mixing chamber inner wall (103), a semiconductor annular heating plate (104), and a semiconductor annular cooling plate (105); one side of the mixing chamber outer wall (101) is the annular mixing chamber (102), and the inner side of the annular mixing chamber (102) is the mixing chamber inner wall (103); one end of the annular mixing chamber (102) is provided with a semiconductor annular heating plate (104), and the other end of the annular mixing chamber (102) is provided with a semiconductor annular cooling plate (105).

2. A PE packaging bag preparation blown film equipment according to claim 1, characterized in that: The blowing structure (2) comprises a blowing ring bin (201), an oblique blowing plate (202), and an outer wall (203) of the blowing bin; the inner side of the blowing ring bin (201) is provided with the oblique blowing plate (202), and the outer side of the blowing ring bin (201) is provided with the outer wall (203) of the blowing bin.

3. A PE packaging bag preparation blown film equipment according to claim 2, characterized in that: The pressure regulating structure (3) comprises a pressure regulating tube (301), a first solenoid valve (302), and a pressure reducing valve (303); the pressure regulating tube (301) is connected to the first solenoid valve (302), and the first solenoid valve (302) is connected to the pressure reducing valve (303) via the pressure regulating tube (301).

4. A PE packaging bag preparation blown film equipment according to claim 3, characterized in that: The temperature control structure (4) comprises a vortex tube (401), an air inlet (402), a hot end (403), a cold end (404), a three-way pipe (405), a second solenoid valve (406), a third solenoid valve (407), and a temperature control tube (408); the vortex tube (401) is respectively provided with an air inlet (402), a hot end (403), and a cold end (404); the vortex tube (401) is connected to a compressed air pipeline via the air inlet (402).

5. A PE packaging bag preparation blown film equipment according to claim 4, characterized in that: The hot end (403) is connected to the docking port of the outer wall (101) of the mixing chamber of the mixing structure (1) through a pipeline, and the hot end (403) is communicated with the annular mixing chamber (102). The cold end (404) is connected to a three-way pipe (405) through a pipeline, and the two branch pipes of the three-way pipe (405) are respectively connected to a second solenoid valve (406) and a third solenoid valve (407).

6. A PE packaging bag preparation blown film equipment according to claim 5, characterized in that: The two branch pipes of the three-way pipe (405) are respectively connected to a temperature regulating pipe (408) and a gas storage tank. The three-way pipe (405) is connected to the docking port of the outer wall (101) of the mixing bin through the temperature regulating pipe (408). The temperature regulating pipe (408) is connected to the annular mixing bin (102) through the outer wall (101) of the mixing bin.

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