CN219028420U

CN219028420U - Packaging bag film blowing machine die head

Info

Publication number: CN219028420U
Application number: CN202223511205.5U
Authority: CN
Inventors: 范纪岗; 范纪鹏; 宋贤磊
Original assignee: Juye Meisaier Packaging Materials Co ltd
Current assignee: Juye Meisaier Packaging Materials Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-16
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to a die head of a packaging bag film blowing machine, which comprises an outer die, an inner die and a fastening bolt, wherein the inner die is arranged in the outer die; an upper cavity is arranged above the inner mold, a plurality of electric heating pipes are arranged on the inner wall of the upper cavity, and a second air pipe for air outlet is arranged on the bottom surface of the upper cavity. According to the utility model, the electric heating tube can heat the position of the discharging gap to a certain temperature, so that raw materials are kept at a certain temperature and are smoothly sprayed out, the excessively fast condensation is avoided, the outer die and the inner die are convenient to disassemble and assemble, the residual raw materials on the inner surface of the outer die and the outer surface of the inner die are convenient to clean, and the film blowing quality is ensured.

Description

Packaging bag film blowing machine die head

Technical Field

The utility model relates to the field of film blowing machines, in particular to a die head of a packaging bag film blowing machine.

Background

The film blowing machine is one kind of equipment for blowing plastic particle or resin material into film after being heated and melted, and the film is produced into plastic package through cutting, heat sealing and other technological process.

But at the blowout stage of beginning, the temperature of centre form, external mold upside is lower, and the plastics of melting form is upwards removed, can cool down too fast, causes the raw materials to condense too fast, can't continue the blowout, and the long-time use of die head moreover, glues the raw materials at the inner wall of die head easily, needs the regular dismantlement die head clearance, and current die head equipment is complicated, dismantles, installs all comparatively troublesome, brings inconvenience for daily clearance work.

In the process of upward movement of the circular film in a spraying manner, wind force is required to be blown out, the wind plays a role in cooling, so that the film is rapidly cooled and shaped, the wind also plays a role in lifting, the film can move upward smoothly without collapsing, the existing wind ring devices are all used, but the existing wind ring devices are large in volume, the number of air inlet hoses is large, and the installation and the debugging are required in production, so that the circular film is inconvenient.

Therefore, it is necessary to design a die head of a packaging bag film blowing machine.

Disclosure of Invention

The utility model aims to provide a die head of a packaging bag film blowing machine, which mainly solves the problems in the prior art.

The utility model provides a die head of a packaging bag film blowing machine, which comprises an outer die, an inner die and a fastening bolt, wherein the inner die is arranged in the outer die, a cavity is arranged below the inner die, a space is formed between the inner die and the outer die, a discharging gap is formed, the discharging gap is gradually narrowed from bottom to top, and the fastening bolt passes through the outer die and the discharging gap and is abutted against the outer side surface of the inner die;

an upper cavity is arranged above the inner die, a plurality of electric heating pipes are arranged on the inner wall of the upper cavity, a second air pipe for air outlet is arranged on the bottom surface of the upper cavity, the top of the second air pipe is annular, and an air hole is formed in the top surface of the second air pipe.

In a preferred embodiment, an air duct is arranged in the inner mold, the bottom of the second air duct is movably connected with the top end of the air duct, the bottom of the cavity is provided with a first air duct, the top of the first air duct is movably connected with the air duct, the bottom of the outer mold is provided with an air inlet, and the air inlet is communicated with the first air duct.

In a preferred embodiment, the air conditioner further comprises a top cover, wherein the top cover is movably arranged in the upper cavity, and the second air pipe penetrates through the top cover.

In a preferred embodiment, the side of the inner mould is provided with a recess against which the front end of the fastening bolt rests.

In a preferred embodiment, the side of the outer mould is provided with a feed pipe which communicates with the channel.

The utility model has the technical effects and advantages that:

the electrothermal tube can be with the position heating of ejection of compact clearance to certain temperature, makes the raw materials keep certain temperature, blowout smoothly, avoids too fast condensation, and external mold, internal mold dismouting are convenient, and the residual raw materials of convenient clearance external mold internal surface, internal mold surface guarantee the inflation film manufacturing quality, and first tuber pipe, second tuber pipe etc. simple structure, effective design, with external mold, internal mold integral type has reduced the work load of equipment such as installation debugging wind ring before original production.

Drawings

FIG. 1 is an overall elevation view;

FIG. 2 is an overall cross-sectional view;

FIG. 3 is a cross-sectional view of an inner mold;

fig. 4 is a top view of the second air duct.

Reference numerals illustrate: 1. an outer mold; 11. a feed pipe; 12. a fastening bolt; 13. a cavity channel; 14. an air inlet; 15. a discharge gap; 16. a first air duct; 2. an inner mold; 21. concave holes; 22. an upper chamber; 23. an electric heating tube; 24. a second air duct; 25. a wind hole; 26. an air duct; 27. and a top cover.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

1-4, the packaging bag film blowing machine die head comprises an outer die 1, an inner die 2 and a fastening bolt 12, wherein the inner die 2 is arranged in the outer die 1, a cavity channel 13 is arranged below the inner die 1, a space is reserved between the inner die 2 and the outer die 1, a discharging gap 15 is formed, raw materials in the cavity channel 13 can move upwards and enter the discharging gap 15, then are sprayed into a circular film, the discharging gap 15 is gradually narrowed from bottom to top, the fastening bolt 12 passes through the outer die 1 and the discharging gap 15 and is abutted against the outer side surface of the inner die 2, and the fastening bolt 12 is in threaded connection with the outer die 1;

an upper cavity 22 is arranged above the inner mold 2, a plurality of electric heating pipes 23 are arranged on the inner wall of the upper cavity 22, the electric heating pipes 23 are electrified to heat the position near the discharge gap 15 to a certain temperature, the situation that when raw materials flow through the discharge gap 15, the raw materials are cooled too fast to be sprayed out is avoided, a second air pipe 24 used for air outlet is arranged on the bottom surface of the upper cavity 22, the top of the second air pipe 24 is annular, an air hole 25 is arranged on the top surface of the second air pipe 24, air is sprayed out from the air hole 25, and the effects of cooling and lifting the sprayed film are achieved.

The air duct 26 is arranged in the inner mold 2, the bottom of the second air duct 24 is movably connected with the top end of the air duct 26, the bottom of the cavity channel 13 is provided with the first air duct 16, the top of the first air duct 16 is movably connected with the air duct 26, when the inner mold 2 is placed in the outer mold 1, the bottom end of the inner mold 2 is just installed at the top of the first air duct 16, at the moment, the first air duct 16 is communicated with the air duct 26, the bottom of the outer mold 1 is provided with the air inlet 14, the air inlet 14 is communicated with the first air duct 16, the air is blown into the air inlet 14 by the fan, and the air is sprayed out from the air hole 25.

The electric heating pipe also comprises a top cover 27, the top cover 27 is movably arranged in the upper cavity 22, the second air pipe 24 penetrates through the top cover 27, and the top cover 27 plays a role of shielding the working environment of the electric heating pipe 23.

The side of the inner mold 2 is provided with a concave hole 21, and the front end of the fastening bolt 12 abuts against the concave hole 21.

The top of first tuber pipe 16 is provided with the protruding head of a style of calligraphy, and the bottom of wind channel 26 is provided with the recess of a style of calligraphy, makes centre form 2 and first tuber pipe 16 mounted position unique, and when centre form 2 was installed in external mold 1 (i.e. centre form 2 was installed on first tuber pipe 16), the screw hole of external mold 1 just aligns with the position of shrinkage pool 21, uses fastening bolt 12 to install into the screw hole again, centre form 2 and external mold 1 easy dismounting.

The side of the outer mold 1 is provided with a feeding pipe 11, the feeding pipe 11 is communicated with a cavity channel 13, and molten raw materials flow into the cavity channel 13 through the feeding pipe 11 and then move upwards into a discharging gap 15.

When the device is used, the electric heating tube 23 preheats the discharge gap 15 to the process temperature, the device is closed, raw materials are sprayed out of the discharge gap 15 to form a cylindrical film, air is sprayed out of the air hole 25 to cool and lift the film, and continuous production is ensured;

when the inner die 2 and the outer die 1 need to be cleaned, the fastening bolts 12 are screwed, and the disassembly and the assembly are convenient.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The die head of the packaging bag film blowing machine is characterized by comprising an outer die, an inner die and a fastening bolt, wherein the inner die is arranged in the outer die, a cavity is arranged below the inner die, a space is formed between the inner die and the outer die, a discharging gap is formed, the discharging gap is gradually narrowed from bottom to top, and the fastening bolt passes through the outer die and the discharging gap and is abutted against the outer side face of the inner die;

2. The film blowing machine die head of claim 1, wherein an air duct is arranged in the inner die, the bottom of the second air duct is movably connected with the top end of the air duct, the bottom of the cavity is provided with a first air duct, the top of the first air duct is movably connected with the air duct, the bottom of the outer die is provided with an air inlet, and the air inlet is communicated with the first air duct.

3. The die head of a film blowing machine for packaging bags according to claim 2, further comprising a top cover movably mounted in the upper cavity, wherein the second air duct passes through the top cover.

4. A die head of a film blowing machine for packaging bags according to claim 3, wherein the side surface of the inner die is provided with a concave hole, and the front end of the fastening bolt is abutted against the concave hole.

5. The die head of a packaging bag film blowing machine as claimed in claim 4, wherein the side surface of the outer die is provided with a feeding pipe, and the feeding pipe is communicated with the cavity.