Stretching film inflation assembly and method

Abstract

The invention relates to the technical field of stretch film packaging machines, in particular to a stretch film inflation assembly and method. The stretch film inflation assembly comprises a packaging machine conveying machine body and a mold; a mold is fixedly installed on the inner wall of the packaging machine conveying machine body through a lifting device, and a bottom film is fixed to the top end of the packaging machine conveying machine body through a film clamping chain. The upper cover is fixed to the top end of a packaging machine conveying machine body through bolts, and a circular groove is formed in the lower end of the upper cover. The inflation head is installed on the inner wall of the circular groove through a bearing, a connecting pipe is arranged at the top end of the inflation head, and the connecting pipe is installed on the inner wall of the top end of the circular groove through a bearing; by improving the stretching film inflation assembly and mode, the stretching film inflation assembly has the advantages of being reasonable in structural design, even in inflation and stable in heating, and therefore the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of stretch film packaging machines, and more specifically, to a stretch film inflation component and method. Background Art

[0002] The fully automatic stretch film vacuum packaging machine is also called the fully automatic plastic box thermoforming vacuum packaging machine. The principle of the fully automatic stretch film vacuum packaging machine is to use a forming mold to heat the film first, and then use the forming mold to punch it into the shape of a container, and then put the package into the formed lower film cavity, and then vacuum pack it. It is mainly composed of a vacuum system, an air-inflating sealing system, a hot-pressing sealing system, an electrical control system, etc. The lower film is formed, the upper film is sealed, and when the lower film is formed, it needs to be heated and blown to constrain the lower film into shape.

[0003] The invention with the existing patent number CN 106864812 A discloses an inflation system for a fully automatic stretch film vacuum packaging machine. The structure has uniform and smooth inflation, which reduces the waste of gas source. However, the inflation position of the device is fixed, which may cause uneven inflation, and the temperature of the injected gas is low, which affects the thermoplastic forming effect of the stretch film.

[0004] In view of this, research and improvement are conducted on the existing problems, and a stretch film inflation component and method are provided, aiming to achieve the purpose of solving the problems and improving the practical value through this technology. Summary of the invention

[0005] The object of the present invention is to provide a stretch film inflation assembly and method to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides a stretch film inflation component and method, which is achieved by the following specific technical means:

[0007] A stretch film inflation component and method, comprising: a packaging machine conveying body, a mold, a bottom film, an upper cover, a circular groove, an inflation head, a connecting pipe, an inflation channel, a spiral blade, a cavity, a transition pipe, a heating pipe, and an inflation pipe; the inner wall of the packaging machine conveying body is fixedly installed with the mold through a lifting device, and the top of the packaging machine conveying body is fixed with the bottom film through a film clamping chain; the upper cover is bolted to the top of the packaging machine conveying body, and a circular groove is opened at the lower end of the upper cover; the inflation head is installed on the inner wall of the circular groove through a bearing, and a connecting pipe is provided at the top of the inflation head, and the connecting pipe It is installed on the inner wall of the top of the circular groove through a bearing; an inflation channel is opened on the inner wall of the inflation head, and the connecting pipe is connected with the inflation channel, and spiral blades are welded on the inner wall of the connecting pipe; a cavity is opened on the inner wall of the upper cover, and the cavity is located above the circular groove, and a transition pipe is provided on the inner wall of the lower side of the cavity, and the transition pipe is connected with the connecting pipe; the heating pipe is sleeved on the outer wall of the transition pipe; the heating pipe is a spiral tubular structure, and a plurality of heating pipes are connected to heat the injected gas to avoid the temperature of the blown gas being too low, which affects the bottom film forming quality.

[0008] The inflation pipe is plug-connected to the inner wall of the transition pipe.

[0009] As a further optimization of the technical solution, the present invention provides a stretch film inflation component and method, wherein the inflation head is a cylindrical structure, and the inflation head is plugged and connected to the inner wall of the circular groove as a rotating device.

[0010] As a further optimization of the technical solution, the present invention provides a stretch film inflation component and method, in which a circular hole for installing a bearing is opened at the top of the circular groove, and a connecting pipe is plugged and connected to the inner wall of the circular hole through the bearing to form a rotating device.

[0011] As a further optimization of the technical solution, the present invention provides a stretch film inflation component and method, wherein the heating tube is a spiral tubular structure, and multiple heating tubes are connected.

[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0013] 1. The inflation head of the present invention is a cylindrical structure, and the inflation head is plugged and connected to the inner wall of the circular groove as a rotating device; a circular hole for installing a bearing is opened at the top of the circular groove, and the connecting pipe is plugged and connected to the inner wall of the circular hole through the bearing as a rotating device. When gas enters the connecting pipe, the spiral blades will cause the inflation head to rotate, which can change the position of the inflation channel when inflating, so that the inflation is uniform.

[0014] 2. The heating tube of the present invention is a spiral tubular structure, and a plurality of heating tubes are connected to heat the injected gas, thereby preventing the injected gas from having a too low temperature and affecting the bottom film forming quality.

[0015] 3. The present invention improves a stretch film inflation component and method, and has the advantages of reasonable structural design, uniform inflation, and stable heating, thereby effectively solving the problems and shortcomings in the prior art and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the local structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 6 It is a schematic diagram of the local structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the local cross-sectional structure of the present invention.

[0024] In the figure: packaging machine conveyor body 1, mold 2, bottom film 3, upper cover 4, circular groove 5, inflation head 6, connecting pipe 7, inflation channel 8, spiral blade 9, cavity 10, transition pipe 11, heating pipe 12, inflation pipe 13. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See also Figures 1 to 7 The present invention provides a specific technical implementation scheme of a stretch film inflation component and method:

[0027] A stretch film inflation component and method, comprising: a packaging machine conveyor body 1, a mold 2, a bottom film 3, an upper cover 4, a circular groove 5, an inflation head 6, a connecting pipe 7, an inflation channel 8, a spiral blade 9, a cavity 10, a transition pipe 11, a heating pipe 12, and an inflation pipe 13; the inner wall of the packaging machine conveyor body 1 is fixedly mounted with the mold 2 through a lifting device, and the top of the packaging machine conveyor body 1 is fixed with the bottom film 3 through a film clamping chain; the upper cover 4 is bolted to the top of the packaging machine conveyor body 1, and a circular groove 5 is opened at the lower end of the upper cover 4; the inflation head 6 is connected to the packaging machine conveyor body 1 through a shaft The bearing is installed on the inner wall of the circular groove 5, and a connecting pipe 7 is provided at the top of the inflation head 6, and the connecting pipe 7 is installed on the inner wall of the top of the circular groove 5 through a bearing; the inflation head 6 is a cylindrical structure, and the inflation head 6 is plugged and connected to the inner wall of the circular groove 5 as a rotating device; a circular hole for installing the bearing is opened at the top of the circular groove 5, and the connecting pipe 7 is plugged and connected to the inner wall of the circular hole through a bearing as a rotating device. When gas enters the connecting pipe 7, the spiral blade 9 will cause the inflation head 6 to rotate, so that the inflation channel 8 can change its position during inflation, so that the inflation is uniform.

[0028] An inflation channel 8 is provided on the inner wall of the inflation head 6, and the connecting pipe 7 is connected to the inflation channel 8, and a spiral blade 9 is welded on the inner wall of the connecting pipe 7; a cavity 10 is provided on the inner wall of the upper cover 4, and the cavity 10 is located above the circular groove 5, and a transition pipe 11 is provided on the inner wall of the lower side of the cavity 10, and the transition pipe 11 is connected to the connecting pipe 7; the heating pipe 12 is sleeved on the outer wall of the transition pipe 11; the inflation pipe 13 is plugged and connected to the inner wall of the transition pipe 11.

[0029] Working principle:

[0030] One end of the inflation tube 13 is connected to the inflation mechanism, and the heating tube 12 is turned on to heat it. The bottom film 3 is transmitted to the bottom of the upper cover 4, so that the inflation tube 13 is inflated. When the gas enters the connecting tube 7 after being heated, the spiral blade 9 will rotate the inflation head 6, so that the inflation channel 8 can change its position when inflating, so that the inflation is uniform. The bottom film 3 is deformed by the hot air filling and is formed by the constraint of the mold 2.

[0031] To sum up: the stretch film inflation component and method, the inflation head is a cylindrical structure, and the inflation head is plugged and connected to the inner wall of the circular groove as a rotating device; the top of the circular groove is provided with a circular hole for installing a bearing, and the connecting pipe is plugged and connected to the inner wall of the circular hole through the bearing as a rotating device. When gas enters the connecting pipe, the spiral blades will rotate the inflation head, which can change the position of the inflation channel during inflation to make the inflation uniform; the heating tube is a spiral tubular structure, and a plurality of heating tubes are connected to heat the injected gas to avoid the temperature of the blown gas being too low, which affects the bottom film forming quality; through the improvement of a stretch film inflation component and method, it has the advantages of reasonable structural design, uniform inflation and stable heating, thereby effectively solving the problems and shortcomings in the existing technology and equipment.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stretch film inflation assembly and method, comprising: A packaging machine conveyor body (1), a mold (2), a bottom film (3), an upper cover (4), a circular groove (5), an inflation head (6), a connecting pipe (7), an inflation channel (8), a spiral blade (9), a cavity (10), a transition pipe (11), a heating pipe (12), and an inflation pipe (13); characterized in that: the inner wall of the packaging machine conveyor body (1) is fixedly mounted with the mold (2) via a lifting device, and the top of the packaging machine conveyor body (1) is fixed with the bottom film (3) via a film clamping chain; the upper cover (4) is bolted to the top of the packaging machine conveyor body (1), and a circular groove (5) is provided at the lower end of the upper cover (4); the inflation head (6) is mounted on the inner wall of the circular groove (5) via a bearing, and the inflation head The top of the circular groove (5) is provided with a connecting pipe (7), and the connecting pipe (7) is installed on the inner wall of the top of the circular groove (5) through a bearing; the inner wall of the inflation head (6) is provided with an inflation channel (8), and the connecting pipe (7) is connected to the inflation channel (8), and a spiral blade (9) is welded on the inner wall of the connecting pipe (7); the inner wall of the upper cover (4) is provided with a cavity (10), and the cavity (10) is located above the circular groove (5), and a transition pipe (11) is provided on the inner wall of the lower side of the cavity (10), and the transition pipe (11) is connected to the connecting pipe (7); the heating pipe (12) is sleeved on the outer wall of the transition pipe (11); and the inflation pipe (13) is plug-connected to the inner wall of the transition pipe (11).

2. A stretch film inflation assembly and method according to claim 1, characterized in that: The inflation head (6) is a cylindrical structure, and the inflation head (6) is plugged and connected to the inner wall of the circular groove (5) to form a rotating device.

3. A stretch film inflation assembly and method according to claim 1, characterized in that: A circular hole for installing a bearing is provided at the top of the circular groove (5), and a connecting pipe (7) is plugged and connected to the inner wall of the circular hole through the bearing to form a rotating device.

4. A stretch film inflation assembly and method according to claim 1, characterized in that: The heating tube (12) is a spiral tubular structure, and a plurality of heating tubes (12) are connected.

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