CN111283987A

CN111283987A - Heating device for blowing bottle blanks with handles

Info

Publication number: CN111283987A
Application number: CN202010310821.0A
Authority: CN
Inventors: 邹大群; 曾观源; 刘敬锋
Original assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Current assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-06-16
Also published as: WO2021212622A1

Abstract

The utility model provides a heating device of blowing area handle bottle embryo, the relative heating zone middle part department in heating case and the wind channel of heating do not is provided with the division board, and the position of division board is adjacent with the end of the handle on the bottle embryo, and is provided with the shielding plate along the moving direction interval of bottle embryo on the division board of heating case one side, and the shielding plate rotates to the position relative towards the district that generates heat with the handle on the bottle embryo. The bottle blank can continuously rotate around the axis while moving along the heating area in the heating process, and when the bottle blank rotates to be opposite to the heating element on the heating box, the bottle blank can be shielded by the shielding plate, so that the heat emitted by the heating lamp tube cannot be directly transmitted to the handle. The heating device has a very simple and skillful structure, separates the heating areas to adapt to the blowing of bottle blanks, and protects the handle, so that a PET bottle blowing machine is smoothly utilized to manufacture the container bottle with the handle, the manufacturing difficulty of the PET container bottle with the handle is effectively reduced, and the processing quality and the production efficiency of the container bottle are also improved.

Description

Heating device for blowing bottle blanks with handles

Technical Field

The invention relates to bottle blowing equipment, in particular to a heating device for blowing bottle blanks with handles.

Background

Plastic container bottles are common appliances used in daily life and are generally formed by blowing bottle blanks through a bottle blowing machine. Common container bottles can be divided into two types, namely a container bottle with a handle and a container bottle without the handle, the container bottle with the handle is divided into two types, one type is a post-handle bottle with the handle installed after plastic bottles are blown, the other type is a self-handle bottle with the handle, the handle is placed in the blowing process, the two types of bottle are blown into a whole, the former type of bottle is usually made of PET (polyethylene terephthalate), and the latter type of bottle is made of HDPE (high density polyethylene).

As shown in FIG. 1, the bottle blank with a handle 102 has two ends connected between the mouth and the middle part of the bottle body of the bottle blank 101. The HDPE container bottle with the handle has the defects of incomplete sealing, easy breakage of a bottle body, difficult control of the bottle capacity and the like in the blowing process; although the PET container bottle with the rear handle has the advantages of relatively good sealing property, compactness, transparency, easiness in observation and the like, the installation of the handle needs specific equipment for production and installation, and the handle is easy to fall off after installation. Therefore, the manufacturing enterprises hope to integrate the advantages of the two, and the PET material is used for manufacturing the container bottle with the handle. However, in the working process of the PET bottle blowing machine, the handle is manufactured and does not participate in blowing, so that the handle part needs to be cooled in the bottle blank heating process, and the handle is prevented from being deformed due to high temperature. The prior PET bottle blowing machine lacks a proper method for cooling the handle part, or the used equipment is extremely complex, and the installation and the processing of the bottle blowing machine have great adverse effect.

Disclosure of Invention

The invention aims to provide a heating device which is simple in structure and suitable for a PET bottle blowing machine to manufacture a container bottle with a handle, so that the manufacturing difficulty of the PET container bottle with the handle is reduced, and the production quality and the production efficiency of the PET container bottle with the handle are improved.

The heating device for blowing the bottle blank with the handle comprises a heating box and a heating air channel for blowing cooling air in, wherein the heating box is provided with a heating area provided with a heating element, and the heating air channel is provided with a blank body air outlet area opposite to the heating area; the middle parts of the heating area and the blank air outlet area are oppositely provided with separating plates, the positions of the separating plates are adjacent to the tail ends of handles on the bottle blanks, shielding plates are arranged on the separating plates on one side of the heating area at intervals along the moving direction of the bottle blanks, and the positions of the shielding plates, which are opposite to the positions of the handles on the bottle blanks, in the heating area are rotated to the positions facing the heating area.

The heating device for blowing the bottle blanks with the handles, disclosed by the invention, has the advantages that the space between the heating box and the air outlet area of the heating air duct is the heating area for placing and moving the bottle blanks. One side of the heating area is provided with a heating box with a heating element, and the temperature of the heating area is increased through the heating element; and the other side of the heating area is a bottle body air outlet of the heating air duct, and cooling air is blown to the heating area from the bottle body air outlet, so that the heating area is prevented from being continuously heated, and the heating area is favorably kept in a set temperature range. During the heating process of the bottle blank, the bottle blank moves along the heating area to be continuously heated and carry out subsequent processes, and the bottle blank continuously rotates around the axis to be uniformly heated. In the process, the heating area is divided into two layers by the partition plate, wherein one layer is opposite to the handle on the bottle blank (temporarily called as a handle area), and the other layer is opposite to the rest bottle body positions of the bottle blank (temporarily called as a bottle body area), so that the heat transfer from the bottle body area to the handle area is reduced; meanwhile, the partition plates are provided with the shielding plates at intervals, the shielding plates can shield heat emitted by the heating element, the heat is prevented from directly radiating to the handle, the handle faces the bottle body air outlet of the heating air duct along with the continuous rotation of the bottle blank, and the handle is cooled by cooling air, so that the phenomenon that the temperature of the handle is too high and the handle is deformed is avoided. Therefore, the heating device has a very simple structure, but skillfully divides the heating area into a plurality of areas according to the requirements of the bottle blank and the handle thereof so as to adapt to the blowing requirement of the bottle blank and protect the handle, thereby smoothly manufacturing the container bottle with the handle by utilizing a PET bottle blowing machine, effectively reducing the manufacturing difficulty of the PET container bottle with the handle and improving the processing quality and the production efficiency of the container bottle.

Drawings

FIG. 1 is a schematic view of a bottle blank with a handle.

FIG. 2 is a schematic view of a heating apparatus for blowing bottle preforms with handles.

FIG. 3 is a schematic view of the operation of the blowing apparatus of FIG. 2 for heating bottle preforms with handles.

Fig. 4 is a schematic view of the structure of the warming tank.

Fig. 5 is a schematic view of a connection structure of the partition plate and the shielding plate.

Detailed Description

A heating device for blowing bottle blanks with handles comprises a heating box 1 and a heating air channel 2 for blowing cooling air in, wherein a heating area 4 provided with a heating element 3 is arranged on the heating box, and the heating air channel is provided with a blank body air outlet area 5 opposite to the heating area; division plate 6 is installed relatively in the middle part in district and the embryo body air-out district that generates heat, and the position of division plate is adjacent with the end of the handle on the bottle embryo, and the division plate on district one side that generates heat is provided with shielding plate 7 along the moving direction interval of bottle embryo on, and the shielding plate rotates to the position relative towards the district that generates heat with the handle on the bottle embryo.

According to the heating device for blowing the bottle blank with the handle, the two partition plates 6 are respectively provided with the stress release grooves 61, the stress release grooves extend from one side, close to the bottle blank, of the partition plates back to the bottle blank to the middle of the partition plates, and the probability of deformation of the partition plates in a high-temperature environment can be greatly reduced through arrangement of the stress release grooves, so that the safety, the production stability and the production quality of equipment are guaranteed.

The heating element 3 comprises a plurality of heating lamp tubes arranged in parallel, the distances between each heating lamp tube and the bottle blank can be set to be all the same, or can be set to be different according to requirements, for example, the distance between the heating lamp tube opposite to the handle and the bottle blank is larger than that between other heating lamp tubes; or the distance between the heating lamp tube opposite to the bottle blank bottleneck and the bottle blank is larger than that between other heating lamp tubes; thereby meeting the heating requirements of different areas and different parts of the bottle blank.

The heating box 1 is provided with an air draft channel 11 which is communicated with the space between the heating box and the air outlet area 5 of the heating air channel, namely, the heating area for heating the bottle blanks is communicated, and therefore cooled cooling air is discharged in sequence.

The heating device for blowing the bottle blank with the handle comprises a blank body cooling fan 8 for blowing cooling air into the heating air duct 2, a cooling air duct 9 opposite to the blank opening of the bottle blank and a blank opening air cooler 10 for blowing cooling air into the cooling air duct, wherein the blank body and the blank opening of the bottle blank are respectively cooled by different air coolers and air ducts so as to meet the heating and cooling requirements of different parts of the bottle blank. In addition, the heating box 1 and the heating air duct 2 are provided with cooling water channels 20 for introducing cooling water at the tail ends of the heating area 4 and the blank body air outlet area 5, and the cooling water channels at the two sides oppositely extend to be adjacent to the connection part of the bottle blank opening and the blank body, so that the area where the bottle blank opening is located and the heating area are separated from each other through the cooling water channels, the temperature control of the two areas is more accurate and stable, the bottle blank opening can be cooled through the cooling water channels, and meanwhile, cooling air blown out from the cooling air duct can be guided, and the cooling air can be blown to a required position more accurately.

As shown in fig. 2-5, the space between the heating box and the air outlet of the heating air duct is a heating area for placing and moving the bottle blanks, the left side of the heating area is a heating area provided with heating lamps, the right side of the heating area is a blank body air outlet of the heating air duct, meanwhile, the upper part of the heating area becomes a low-temperature heating area with the temperature lower than that of the lower part due to the action of the partition plate and the baffle plate, and the lower part of the heating area is called a common heating area. During the heating process of the bottle blank, the bottle blank moves along the heating area to be continuously heated and carry out subsequent processes, and the bottle blank continuously rotates around the axis to be uniformly heated. In the process, when the handle on the bottle blank rotates to be opposite to the heating lamp tube, the handle is shielded by the shielding plate, so that heat emitted by the heating lamp tube cannot be directly transmitted to the handle, and the overhigh temperature deformation of the handle is avoided.

Claims

1. The utility model provides a heating device of blowing area handle bottle embryo, includes warming box (1) and the wind channel (2) of heating that insufflates the cooling air, sets up the district (4) that generate heat who installs heating element (3) on the warming box, and the wind channel of heating is equipped with and generates heat the relative embryo body air-out district (5) in district, its characterized in that: division board (6) are installed relatively in the middle part in district and the embryo body air-out district that generates heat, and the position of division board is adjacent with the end of the handle on the bottle embryo, and the division board of district one side that generates heat is provided with shielding plate (7) along the moving direction interval of bottle embryo on, and the handle on shielding plate and the bottle embryo rotates to the position relative of the district that generates heat of orientation.

2. A blown handle bottle preform heating apparatus as claimed in claim 1 wherein: the two partition plates (6) are respectively provided with a plurality of stress release grooves (61), and the stress release grooves extend from one side of the partition plates close to the bottle blank back to the bottle blank to the middle part of the partition plates.

3. A device for heating blown bottle blanks with handles as claimed in claim 1 or 2, wherein: the heating element (3) comprises a plurality of heating lamp tubes which are arranged in parallel.

4. A blown handle bottle preform heating apparatus as claimed in claim 3 wherein: the distance between the heating lamp tube opposite to the handle and the bottle blank is larger than the distance between other heating lamp tubes and the bottle blank.

5. A device for heating blown bottle blanks with handles as claimed in claim 1 or 2, wherein: an air draft channel (11) is arranged on the heating box (1), and the air draft channel is communicated with the space between the heating box and the air outlet area (5) of the heating air channel.

6. A device for heating blown bottle blanks with handles as claimed in claim 1 or 2, wherein: a preform body cooling fan (8) for blowing cooling air into the heating air duct (2), a cooling air duct (9) opposite to the preform opening of the bottle preform and a preform opening air cooler (10) for blowing cooling air into the cooling air duct.

7. A blown handle bottle preform heating apparatus as claimed in claim 6 wherein: the tail ends of the heating box (1) and the heating air duct (2) which are positioned in the heating area (4) and the blank body air outlet area (5) are provided with cooling water channels (20) for introducing cooling water, and the cooling water channels on the two sides oppositely extend to be adjacent to the connection part of the bottle blank mouth and the blank body.