KR101095429B1 - Blowing apparatus for container equipped with compartments - Google Patents

Abstract

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a blow molding apparatus, a molding method, and a container manufactured thereby for manufacturing a container having an inner compartment divided by a partition, and more particularly, to uniformity of a preform in a heating zone. An air-cooling means is introduced together with a heating means for heating, and a resistance zone that is retracted with the expansion of the preform is introduced into the blowing zone so that there is no problem of increasing the quality or defective rate of the manufactured container even when the production speed is improved. A blow molding apparatus, a molding method, and a container manufactured thereby.
The blow molding apparatus according to the present invention includes a heating zone including heating means for heating a preform having a preliminary section divided by an opening and a preliminary partition, and air cooling means for uniform heating of the preform; And a blowing zone including an air blower for injecting air through the opening of the preform.

Description

BLOWING APPARATUS FOR CONTAINER EQUIPPED WITH COMPARTMENTS}

The present invention relates to a blow molding apparatus, a molding method, and a container manufactured by the same for manufacturing a container having an inner partition divided into a receiving space by a partition wall.

More specifically, an air-cooling means is introduced together with a heating means to uniformly heat the preform in a heating zone, and a resistance zone that retracts with the expansion of the preform is introduced into the blowing zone to improve production speed. The present invention relates to a blow molding apparatus, a molding method, and a container manufactured thereby, so that there is no problem of increasing the quality or defective rate of the manufactured container.

The inventor's patent 0845737 (July 07, 2008) [Blow molding method of a container having a divided receiving space and its container]

In blow molding of the preform with the preliminary bulkhead, the blowing pressure is changed in the first and second stages to produce a constant thickness of the outer wall and the bulkhead, and the technology to secure mass productivity, which is the key to industrial technology development, is proposed.

However, in order to meet the demand in the process of commercializing the above technology, it is necessary to produce at a higher speed, and the need for process improvement to drastically reduce the product defect rate due to the production at a relatively high speed has emerged. Reached.

In addition, in order to produce containers in which compartments divided by partition walls can communicate with each other in order to meet the demand of various kinds of containers, there is a need for suggesting a technology suitable for solving the ground problem of simultaneous quality and productivity. I would like to suggest a solution.

Accordingly, the present invention has a problem in terms of defect rate or individual container quality despite securing the mass production and the required production speed in connection with a blow molding apparatus for manufacturing a container having an inner partition divided by a partition and a molding method using the same. It is proposed to present the missing technology.

Another object of the present invention is to provide a blow molding apparatus including a container having a through-hole formed in the partition wall and a post-processing zone therefor so that partitions divided by the partition wall can communicate with each other.

Furthermore, the present invention provides a container and a molding apparatus for forming a recess in a body position overlapping with the partition wall in order to solve the problem that the optical refraction occurs due to the partition wall partitioning the inner space of the container body unfamiliar than the existing container. To provide a, and to provide a container and a molding apparatus therefor provided with a shielding portion in the recess in order to prevent the partition wall from the side.

In addition, the present invention is to introduce a heating zone (Heating Zone) is heated before blowing the injection-molded preform in the blowing zone to ensure productivity and quality, the preliminary outer wall and the preliminary partition of the preform An object of the present invention is to provide a blow molding apparatus in which cooling means, in particular air cooling means, are arranged together with a heating means so as to be uniformly heated, and a molding method therefor.

In another aspect, the present invention introduces a seating member having an opening portion of the preform is placed and the preliminary bulkhead is fitted to enable the rotation of the preform while passing through the heating zone, and then put into each preliminary section of the preform in the blowing zone An object of the present invention is to provide a blow molding apparatus that facilitates specifying a position of an opening so that a stretching rod having a diverging body can be accurately input.

Another object of the present invention is to provide a blow molding apparatus further including a shielding member for preventing the spout of the preform from being heated by a heating means in the heating zone.

The present invention also introduces a resistance member that retracts according to the elongation of the preform in a state in which the bottom of the blowing zone is pressed against the bottom of the preform, so that there is no problem of increasing the production rate or the defective rate of the manufactured container even when the production speed is improved. It is an object to provide a molding apparatus.

Blow molding apparatus according to the present invention to achieve the above object

Heating means for heating a preform having a preliminary compartment divided by an opening and a preliminary partition;

A heating zone including an air cooling means for uniform heating of the preform; And

A blowing zone including an air blower for injecting air through the opening of the preform;

It is made, including.

In the blow molding apparatus of the embodiment

The heating zone further includes a seating member having an opening portion of the preform settled therein and having an insertion portion into which the preliminary bulkhead is fitted.

In addition, the heating zone further includes a shielding member to prevent the preform further comprises a spout, the spout of the preform is not heated by a heating means,

The heating zone further includes a rotating means for turning the preform,

The blowing zone may further include a mold provided on the outer surface of the preform, a stretching rod introduced into the preliminary compartment of the preform, and a resistance member that retracts according to the elongation of the preform in a state in which the bottom surface of the preform is opposite to the opening of the preform. desirable.

Further blow molding method for producing a container having a partition according to the invention

While heating the preform having the preliminary compartment divided by the opening and the preliminary bulkhead through the heating means,

After passing through a heating zone (heating zone) to perform the cooling through the air cooling means for uniform heating of the preform,

It is manufactured through a blowing zone (molding zone) formed through an air blower for injecting air through the opening of the preform.

Another embodiment of the blow molding apparatus according to the present invention

A blowing zone including an air blower for injecting air through the opening of the preform having the opening and the preliminary partition divided by the preliminary partition; And

It comprises a post-processing zone (blow-processing) including a puncturing means for forming a through hole in the partition wall of the container body having a partition divided by the partition wall.

In addition, the blow molding apparatus of another embodiment according to the present invention

A mold provided on an outer surface of the preform having a preliminary partition portion divided by an opening and a preliminary partition, and having a protrusion at a position corresponding to the preliminary partition;

A stretching rod which is introduced into the preliminary compartment of the preform,

An air blower for injecting air through the opening of the preform, and

A resistance member that retracts according to the elongation of the preform while the bottom surface portion opposite to the opening of the preform is pressed.

It is made, including.

On the other hand, the container of another embodiment according to the present invention

Openings;

An outer wall extending from the opening; And

A partition wall arranged in the outer wall to form a partition part and having a through part;

It is made, including.

In addition, the container according to the present invention

Openings;

An outer wall extending from the opening;

Partition walls arranged in the outer wall to form partitions; And

A recess formed in an outer wall position overlapping the partition wall;

It is made, including.

Furthermore in the container according to the invention

The concave portion is further provided with a shielding portion to prevent the partition wall,

Preferably, the outer wall is formed with a parting line at a position shifted from the concave part, or the parting line is formed with a parting line at a position overlapping the concave part.

On the other hand, another embodiment of the blow molding apparatus according to the present invention

A mold provided on an outer surface of the preform having a preliminary compartment divided by an opening and a preliminary bulkhead,

A stretching rod which is introduced into the preliminary compartment of the preform,

An air blower for injecting air through the opening of the preform, and

A resistance member that retracts according to the elongation of the preform while the bottom surface portion opposite to the opening of the preform is pressed.

It comprises a blowing zone (blowing zone) comprising a.

In another embodiment of the blow molding apparatus

Heating means for heating a preform having a preliminary compartment divided by an opening and a preliminary partition, and further comprising a heating zone arranged before the blowing zone,

The heating zone, the preform further comprises a spout, and further comprises a shield member to prevent the spout of the preform is heated by a heating means,

The heating zone further includes a rotating means for turning the preform,

The heating zone further includes a seating member having an opening side of the preform and having an insertion portion into which the preliminary bulkhead is fitted.

It is preferable to further include a loading zone including a camera for photographing the preliminary bulkhead angle of the preform, and displacement means for pivoting the seating member to match the insert according to the angle of the preliminary bulkhead read by the camera. Do.

Blow molding apparatus for a container having a partition according to the present invention as described above, with respect to the blow molding method using the apparatus, and thereby by the container,

First, to provide a blow molding apparatus including a container having a through-hole formed in the partition wall and a post-processing zone therefor so that the partitions divided by the partition wall can communicate with each other.

Furthermore, in order to solve the problem that light refraction occurs due to the partition wall partitioning the inner space of the container body and the appearance is unfamiliar to the existing container, the container having a recessed portion formed in the body position overlapping with the partition wall and a molding apparatus therefor are provided. In addition, to provide a container and a molding apparatus therefor provided with a shielding portion in the recess to prevent the partition wall from being seen from the side,

In addition, in order to ensure the productivity and quality, the heating zone is heated before the injection molded preform is blown in the blowing zone. To provide a blow molding apparatus and a molding method therefor, in which cooling means, in particular air cooling means are arranged together with heating means,

In addition, by introducing a seating member having an inserting portion in which the opening side of the preform is inserted and the preliminary bulkhead is inserted, the preform can be rotated while passing through the heating zone, and thereafter, a branch body is introduced into each preliminary section of the preform in the blowing zone. It provides a blow molding apparatus that facilitates specifying the position of the opening so that the stretching rod having a

The present invention also provides a blow molding apparatus further including a shielding member for preventing the spout of the preform from being heated by a heating means in the heating zone.

In addition, a blow molding apparatus which introduces a resistance member that retracts according to the elongation of the preform while pressing the bottom portion opposite the opening of the preform in the blowing zone so that there is no problem of increased quality or defective rate of the manufactured container even when the production speed is improved. By providing

As a result, the blow molding apparatus for manufacturing a container having an inner partition divided by a partition and a molding method using the same have secured mass production, and despite the required production speed, there is no problem in defect rate or individual container quality. Can present

1 is a schematic plan view of a blow molding apparatus for a container having a partition according to the present invention;
2 is a schematic side view of a transfer zone.
3 is a schematic side view of a heating zone.
4 is a schematic side view of a reposition turning means that specifies the direction of the bulkhead of the preform before entering the Blowing Zone;
Figure 5 is a schematic side view associated with the mold and stretching rod of the blowing zone and the like.
6 is a schematic partially enlarged side view associated with a resistance member of a blowing zone;
7 is a schematic cross-sectional view of a postprocessing zone.
8 and 9 are exploded perspective views of a container having a partition according to the present invention.
10 is a cross-sectional view of a container having a partition according to the present invention.
Figure 11 is a cross-sectional view of the use state of the container having a partition according to the present invention.
12 is a cross-sectional view of another type of container.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

First, as shown in FIG. 8, the preform 30 manufactured by the injection molding method is blow-molded to manufacture the main body 10 of the container C including the lid 20 and the main body 10. A schematic plan view of the blow molding apparatus B is shown in FIG. 1.

In FIG. 8, the preform 30 has a spout 35A around the opening 35, and a spiral portion 35a is formed on the outer circumferential surface of the spout for screwing the molded container and the lid, and the flange forming the jaw ( 35B) is provided in the lower part of the spiral part 35a.

In addition, there is provided a preliminary outer wall 31 and a preliminary partition 33 extending by a stretching rod and blowing pressure to form a partition wall and a partition wall of the container,

The preliminary compartment 33S is divided by the preliminary partition 33, and if necessary, the number of the preliminary compartments 33S may be three or more in addition to the two shown, and each preliminary compartment The volume of 33S is not uniform as needed and may be formed differently at regular or irregular intervals.

The main body 10 of the container C blow-molded from this preform 30 has a spout 15A, spiral, which also has the same size and shape as the preform 30 (and thus not blow-molded) around the opening 15. It has a part 15a and the flange 15B. For this purpose, the term 'spare' is used for the outer walls, bulkheads and partitions of the preform, and not for the openings, spouts, flanges, and spirals, but the present invention should not be construed as limiting the present invention. If necessary, a portion of the lower portion of the preform spout 35A may not be blow molded, and the spout of the preform may be blow molded.

In addition, the container body 10 is divided into the receiving space (S) surrounded by the outer wall 11 by the partition wall 13 to form a partition (13S).

If necessary, the spout of the blow-molded container may have a variety of shapes such as ellipses, triangles, squares, and other polygons having no spirals or cross-sections that are approximately circular.

The container body shown in FIG. 8 is also in the shape of an ellipse similar in shape with straight lines at approximately symmetrical cross sections.

In addition, the partition 13 of the manufactured container body may have a shape that rises up to the top of the spout 15A or a shape that protrudes more than the top of the spout or rises up to a position where the top of the spout does not reach the top.

As shown in FIG. 1, the blow molding apparatus B for the container C main body 10 having such a partition 13 is large.

Transfer zone 110 for sequentially supplying the preform 30, a loading zone 120 for aligning the supplied preforms and sequentially supplying them to the next step, and a preform that has already been completely cured. Heating zone (130) for reheating or maintaining the blowable moldable temperature of the preform (heating concept), blowing zone (140) for expanding the preform through stretching rods and blowers, and necessary Postprocessing zones 150 for finishing are provided in turn.

If necessary, the zones 110, 120, 130, 140, and 150 may be arranged separately in one place or in completely different places in a form having a significant process time difference instead of being continuously arranged.

In addition, although each zone may be omitted as necessary, the blowing zone 140 must be provided essentially,

The heating zone 130 is essential in the case of blow molding utilizing a separately molded and fully cured preform, commonly referred to as a two stage method in blowing molding. However, in the case of the blow molding in which the preform injection molding and the blow molding proceed directly to the same as in the one-stage method, it can be omitted.

Hereinafter, with reference to FIG. 1, the zones 110, 120, 130, 140, and 150 are described as if they are continuous.

Accordingly, it should not be interpreted as excluding various modifications by those skilled in the art from the protection range of the blow molding apparatus and the blow molding method using the same.

More specifically, in FIGS. 1 and 2, the transfer zone 110 transfers the preform 30 to the loading zone 120 from the storage 111 containing the injection molded preforms 30 and the storage 111. It consists of a conveying means for.

First, the first conveying means 113 has a slanted portion and a conveyor belt 113A in which a plurality of scoops 113B are formed to sequentially convey the preforms one by one in the storage 111 in which the preform 30 naturally descends downward. )

The second transfer means 115 is a hopper 115B having an upper and lower narrow shape for receiving a preform falling from the upper portion of the belt 113A of the first transfer means, and the spout of the preform 30 is disposed at the lower end of the hopper. It consists of a plurality of rollers 115A arranged in series so that the 35A is aligned upwards.

The third transfer means 117 is composed of two guide rods 117A which are inclined so that the preform slides by its own weight and is introduced into the loading zone, and is arranged adjacent to the rear roller 115A of the second transfer means.

The transfer zone 110 may be variously modified in order to supply the preform continuously with a certain time difference.

2 and 1, the loading zone 120 arranged adjacent to the third transfer means 117 is

It includes a conveying body 121 having a fitting portion (121a) so that the opening (35) facing the upper portion of the preform 30, the guide rod 117A.

The conveying bodies 121 are connected to each other by the connecting body 121A and rotate in a circular direction from the top to the bottom (see arrows in FIG. 1).

In addition, the camera 123 is installed at the beginning of the loading zone 120 to photograph the direction of the preliminary bulkhead 33 of the preform 30 located at the fitting portion 121a of the conveying body 121.

Before the supply to the hitting zone 130, the direction of the preliminary bulkhead 33 of the preform 30 is to be constantly aligned.

As a specific method, the image captured by the camera 123 is transmitted to the controller B1 (particularly, a programmable logic controller (PLC) method).

The control unit B1 (in FIG. 1, the control relationship is represented by '~~~~') controls the displacement means 125 at the rear end of the loading zone 120 to uniformly set the reserve bulkhead 33 of the preform 30. Sort it out.

As can be seen in the side conceptual drawing in the right dotted ellipse of FIG.

The displacement means 125 includes a branch body 125C that is pivoted by an angle adjusting pivot means (for example, a motor 125A) and descends by a lifting body (for example, a pneumatic or hydraulic piston 125B).

Under the control of the control unit B1 according to the transmission image of the camera 123, the insertion groove 125c of the branch body 125C is pivoted in advance so that the preliminary partition 33 of the preform can be fitted by the motor 125A. Doing it,

When the corresponding preform is located at the bottom, it is lowered by the lifting body 125B,

When the branch body 125C is rotated by the motor 125A again, the partition 33 of the preform 30 is aligned in one direction.

In addition, the rear end of the loading zone 120 is provided with a flipping means 127, by the displacement means 125 to supply the preform in which the eb bulkhead 33 is aligned to the heating zone 130 to the reverse.

As can be seen in the side conceptual view in the upper dashed ellipse of FIG. 1, the flip means 127 is a turning arm 127B that is pivoted by forceps 127A and a rotating means (e.g., motor 127C). Done,

When the tongs 127A bit the spout 35A (protruding above the loading zone 120 carrier 121) of the preform 30 aligned, the swing arm 127B rotates by the motor 127C. So

Positioning member 131 constituting the heating zone 130, the forceps 127A is opened.

The motor 125A, 127C or the piston 125B may be replaced with other known rotating means and elevating means,

Control of each of the operating members 125A, 125B, 127A, 127C (121 (motor for circulation of the conveying body)) is made by the control unit B1.

The seating member 131 supplied with the preform 30 aligned by the displacement means 25 of the loading zone 120 by the flip means 127 has been described as constituting the heating zone 130 for convenience.

However, the seating member 131 is circulated at regular intervals on the conveyor belt 130A circulating between the heating zone 130, the blowing zone 140, and the post-processing zone 150,

Since the seating member 131 moves along the conveyor belt 130A, the heating zone 130 functions to enable revolution of the preform 30 (indicated by a dashed-dotted circular arrow in the center).

More specifically, the loading zone 120 includes a seating member 131, a heating means 133, an air cooling means 135, and a shielding member 137.

3 and 4, the mounting member 131 may have an opening part 35 side of the preform 30 and the insertion part 131A into which the preliminary bulkhead 33 is inserted. Has

The insertion portion 131A corresponds to a gap between two protruding powders 131A 'having a semi-circular cross-sectional shape, and the size and shape thereof are deformed to suit the preliminary partition of the preform.

In addition, as shown in the lower left dashed line circle of FIG. 3 and FIG. 3, which is a side cross-sectional view, the insertion part 131A is inverted and supplied by the flipping means 127 of the loading zone 120. It is preferable to have an upper and lower narrowing shape so that the preliminary partition 33 of () is easy to fit,

In addition, the two protruding powders 131A 'preferably have upper and lower light beams so that the openings 35 of the preform 30 are easily fitted.

Furthermore, it is preferable that the preform 30 has a dimension to prevent the preform 30 from being shaken as much as possible.

Between the two protruding powders (131A ') of the seating member 131, there is formed an injection hole (131a) for the injection of the stretching rod 141 in the blowing zone 40 and blowing of air (or gas).

In addition, the seating member 131 is provided with a contact disk 131B at the lower portion of the protruding powder 131A 'so that the mounting member 131 rotates in a random direction before the preform enters the blowing zone 140 at the rear end of the heating zone 130. Friction with the belt 140e constituting the repositioning turning means 140E for aligning the preliminary bulkhead 33 facing in the predetermined direction is made possible.

In addition, a substantially rhombic block 131D is provided below the disk 131B, and a preliminary arrangement of the preliminary bulkhead direction of the preform is formed at the vertex corresponding to the long diagonal portion of the block by the position change turning means 140E. After that, a fixing hole 131d for firmly fixing this state is provided.

A lower portion of the block 131D is provided with a fixed rod 131b which is used to allow the preform to be injected into the blowing zone 140 while fixing a specific alignment state of the preliminary bulkhead direction of the preform.

The fixed rod 131b has a cross sectional shape basically having a non-circular shape or the like, and has a similar ellipse shape having two symmetrical straight lines as shown in the cross sectional view concept in the lower middle one-dot chain line of FIG. 3.

The lower portion of the fixing rod 131b is provided with a sprocket 131C, so that the chain 131c (heating zone 130 in FIG. 1) can be seen in the lower right one-dot chain circle of FIGS. 1 and 3. Pivoting by the sprocket 131c ′ in the region) to allow the seating member 131 to pivot, thereby allowing the seating member and the preform to rotate.

This rotation of the propim 30 should be done throughout the heating zone 130 (indicated by the dashed line region in FIG. 1),

Revolution of the preform 30 passing through the heating zone 130 and the blowing zone 140 (represented by a dashed-dotted circular arrow in the center of FIG. 1) corresponds to the essentials for uniform heating of the proform,

The revolving means and the rotating means of such a preform can be variously modified.

In addition, in the structure of the mounting member 131 constituting the heating zone 130, the insertion portion 131A in which the partition 33 of the preform is placed is blow-molded in the blowing zone (for each preliminary section 33S of the preform 30). With the preliminary bulkhead alignment to allow the branch 141A of the stretching rod 141 to be fed (see FIGS. 5 and 6).

Essential for productivity, rotation of preforms, and ease of design, manufacturing, and control,

Other components can be deformed as needed.

Conceptually, the seating member 131 may introduce a suitable clamp instead of the inserting portion 131A to ensure a specific alignment in the direction of the partition wall in the blowing zone and to secure the rotation of the preform in the heating zone.

In addition, as shown in Figures 1 and 3, the heating zone 130 is preferably a structure that can block the heat loss by forming a kind of duct (D) structure,

Heating means for heating the preform 30 having the preliminary compartment 33S divided by the preliminary partition 33;

It is preferable to include air cooling means for uniform heating of the preform, in particular, the preliminary outer wall 31 and the preliminary partition wall 33,

In particular, the air cooling means is one of the key concepts for the blow molding of a container having a compartment.

The heating means 133 is preferably composed of a heater, in particular an infrared lamp suitable for light heating due to a long wavelength, and may be installed only on one side because the preform is rotated in the heating zone, and a predetermined interval throughout the heating zone. Are arranged.

The air cooling means 135 is composed of a blowing means (135A) and a nozzle (135a) for the discharge of wind, supplying air at room temperature, it can supply air (or other gas) of a controlled temperature, if necessary .

The air supplied from the air cooling means 135 cools the preform heated by the heating means 133 so that the preliminary outer wall 31 and the preliminary partition 33 of the preform are uniformly heated.

(If there is no air cooling means, the preliminary outer wall will be heated faster than the preliminary bulkhead and combined with the nonuniform heating of the preform. Problems with finished container quality (e.g. transparency, outer wall and bulkhead thickness unevenness, etc.),

The air introduced for cooling is discharged to the upper inlet 135b "of the duct D,

For convenience of control, the intake means 135B including the intake port further includes an intake fan 135b.

In addition, since the spout 35A and 15A which do not change shape and dimension in the preform 30 and the container 10 do not need to be heated, the heating causes a defect,

The heating zone 130 preferably further includes a shielding member 137 to prevent the spout of the preform from being heated by the heating means. Of course, the heating unnecessary portion of the preform may be selected as necessary in addition to the spout portion, and the shielding member 137 is also deformed accordingly.

In addition, the shield member 137 preferably has a cooling water circulation path (137a).

Next, the preform that passes through the heating zone 130 having a predetermined section length is then introduced into the blowing zone 140.

As mentioned above, the position change turning means 140E is provided at the rear end of the heating zone 130 so that the branching body 141A of the stretching rod 141 is correctly input to each of the preliminary sections 33S of the preform 30. do.

As shown in Figs. 1 and 4, the position change pivot means 140E includes three pulleys including a drive pulley connected to the motor 140e ', and has a belt 140e circulating between the three pulleys.

The belt 140e pivots the seating member by pivoting the contact disk 131B of the seating member 131. As a result, the direction of the preliminary partition 33 is changed while the preform 30 is pivoted.

In this state, as conceptually shown in the right middle dashed line ellipse of FIG. 4,

If the vertex portion corresponding to the long diagonal portion of the lozenge block 131D of the seating member 131 is located within the sensing distance of the sensor, in particular, the proximity sensor 140d ', it is controlled by the controller B1.

The motor 140e 'is stopped,

In this state, the upper block 140D moves and the fixing pin 140d of the upper block is inserted into the fixing hole 131d of the block 131D to firmly fix the displaced state.

In addition, both straight portions 130b 'of the fixed rod 131b provided below the block 131D of the seating member 131 are

Since it is in contact with the movable guider 140f which is moved by the movable means 140f '

Also serves to fix the specific alignment of the preform in the direction of the preliminary bulkhead.

The movable guider 140f leads to the fixed guider 140F of the blowing zone 140,

The blowing process then proceeds.

As shown in FIGS. 5 and 6, the mold M in the blowing zone 140 is

Two main molds 140A surrounding the main part of the finished container C main body 10 and symmetrical (parting lines are formed in the container body due to the boundary area of the two interlocking powders engaged).

The bottom block 140B located above the mold (the term 'bottom' is for the lower part opposite the opening of the container body and is generally referred to in the industry by reference to the container),

The stop block includes a stop block 140C fixed to the mold 140A to prevent the bottom block from retreating upward.

The upper block 140D (the term 'upper') having a fixing pin 140d fitted into the fixing hole 131d of the block 131D to fix the seating member 131 is also manufactured. Is selected based on the spout).

The main mold 140A and the bottom block 140B of the mold M are provided with a protrusion 140p for forming the recess 11A of the container body 10, which will be described later.

Next, after the upper block 140D, the bottom block 140B is lowered and arranged at the correct position. Then, when the [main mold 140A and the stop block 140C combination] moves to the preform side and the arrangement is completed,

The branched body 141A of the stretching rod 141 is introduced into every preliminary compartment 33S of the preform 30 and at the same time

According to the control of the control unit B1, air is introduced into each preliminary compartment 33S by the blower 147 through the opening 35 of the preform 30 to stretch the preform.

Blowing air is introduced into the preliminary compartment 33S of the preform through the air supply hole 143b of the bushing 143B via the air supply port 143A and the air passage 143a of the fixed block 143.

The bushing 143B is for preventing the interference of the hollow 143a 'and the air passage 143a for inserting the stretching rod 141 formed at the center of the fixing block 143,

As shown in the longitudinal section in the right central dashed circle of FIG. 5, the vent groove 143b has a radial structure.

In addition, the air supplied through the blower 147, as described in patent 0845737,

After the first blow molding step to have a predetermined shape through the first blowing,

The secondary blow molding process is performed again to obtain a container shape that matches the shape of the blowing mold through the secondary blowing.

For example, the primary blowing pressure is about 8 bar, the secondary blowing pressure may be 25 ~ 30 bar.

Next will be described the resistance member forming another core of the present invention.

The resistance member of the blowing zone forms the core of the technology to ensure the mass production of the partitioned container manufactured by blow molding together with the air cooling means of the heating zone, and to ensure that there is no problem in the defective rate or individual container quality despite the required production speed.

As shown in FIGS. 5 and 6, the resistance member 145 includes a resistance rod 145A having a contact portion 145a, a cylinder 145B for raising and lowering the resistance rod, and a stretching extension of the preform. Accordingly, the resistance rod is made of an elastic means for exerting a constant resistance when the retreat rises.

When the components 140A, 140B and 140C of the mold M are moved in the blowing zone 140 to prepare for blowing,

While the air supplied to the air hole 145b of the cylinder 145B provided in the bottom block 140B is blocked,

Since the pressure that presses the disk 145a 'of the resistance rod 145A upwards disappears

The elasticity of the spring 145C constituting the elastic means is exerted to unfold the spring,

Accordingly, the resistance rod 145A is lowered so that the contact portion 145a comes in contact with the bottom of the preform 30.

In this state, the resistance rod 145A rises and retracts due to the blowing pressure and the stretching elongation of the preform by the stretching rod, and the spring 145C contracts.

When the blowing of the preform is completed and the container body is completed, the control unit B1 supplies air back to the air hole 145b of the cylinder 145B to press the disk 145a 'connected to the resistance rod to Fix the elevated state and wait for the next blow molding.

In the present invention, the resistance member 145 of the blowing zone 140 has a resistance rod 145A as an essential component,

In addition, the cylinder, the lifting means of the resistance member, the elastic means and the like can be variously modified.

For example, the spring 145C may be transformed into a coil spring or a leaf spring of another structure, or the elastic means including the concept of the spring may be implemented by pneumatic (or hydraulic).

In addition, such a pneumatic (or hydraulic) elastic means may be implemented as operating pneumatic (or hydraulic) for raising and lowering the resistance rod as needed.

For example, instead of the air inflow and outflow structure that flows into the air hole 145b below the cylinder 145B for fixing the retracted resistance rod,

Air holes are formed in the upper and lower parts of the cylinder to control the rising and falling of the resistance rod by flowing air in and out of the upper and lower portions of the disk 145a, and to suppress the rising backward of the resistance rod when the preform is blown.

The form shown in FIG. 6 is a kind of single movement control, and the modified example may be referred to as double movement control.

In addition, if necessary, the role of suppressing the rising backward of the resistance rod during the blowing of the preform may be that the self-weight of the resistance rod functions (in this case, no elastic means is necessary).

Meanwhile, in FIG. 6, the spring 145C when the resistance rod 145A descends before the start of blowing is

When the resistance rod falls freely, it does not collide with the bottom of the preform 30 to cause deformation of the heated preform.

It is desirable to function to reduce the falling speed of the resistance rod.

In addition, the disk 145a 'is preferably provided with a suitable packing to ensure airtightness or lubricity, or both.

As such, the container body completed through the blowing zone 140 may be discharged as it is, or may be subjected to a parting line or a burr removal process through a postprocessing zone if necessary.

7 and 12, the postprocessing zone is blow-molded to the partition wall of the container body 10 having the partition portion 13S divided by the partition wall 13. Perforation means to form a).

The punching means 151 is inserted into the opening 15 of the container body as shown in Fig. 7 and has a punch 151A having a cutter 151a (having a blade similar to a puncher, which is a kind of stationery), and It is inserted into the opening 15 of the container body and includes a support 151B for supporting the partition 13 of the container body 10 during punching so that the perforation is easily performed.

The support 151B is provided with a suction discharge passage 151b for removing debris generated when the container partition wall is punctured as needed.

Appropriate suction force generating means for suction of debris is preferably provided.

If necessary, the punch of the punching means 151 may be replaced by a drill, and in this case, it is preferable that an appropriate suction removing means for removing the debris is introduced.

Alternatively, the drilling means may apply the concept of a hot iron that can heat cut the synthetic resin,

In addition, the iron concept may be applied to the punch forming the through hole 13A in the partition wall of the container body 10 together.

Next, the container C which is made by the blow molding apparatus of the present invention and the blow molding method using the same will be described with reference to FIGS. 8 and 9.

In describing the container herein, the terms 'container' and 'body' are used interchangeably, and basically, the term 'body' has a meaning different from 'container' when describing with 'lid'.

The container C according to the present invention includes a main body 10 and a partition wall 13 partitioning the accommodation space S of the main body, and the lid 15 is formed in the opening 15 of the main body 10. 20) is combined.

The shape of the container body 10 can be any bottle or other shape of the narrow opening,

The partition 13S partitioned by the partition wall is two symmetrical with the same volume, but the present invention is not limited thereto because the number of the partition 13S can be increased or the asymmetry of the volume can be increased.

In the container (C) according to the present invention, the main body 10 having the inner receiving space (S) is partitioned by the partition 13, the space 11,

First, the parting line 11B and the partition 13 formed outside the main body 10 are preferably arranged in a staggered position.

This is the parting line of the main body due to the boundary between two mold powders for container molding (normally, two mold powders are used in consideration of mass production, but a molding method using three or more mold powders is not excluded to avoid the present invention). (parting line; 11B)

In general, a molded article drawn from a mold such as a mold is a trace that remains where the mold abuts, which usually means a thin film such as a thin convex line or a fin.

When the parting line 11B is formed at a position overlapping with the partition wall 13

Cases of inconsistency occur

(The parting line-in will be perpendicular to the normal mold shape, but the partition wall extending during the molding process may not be perfectly vertical.)

Although the actual partitioned volume is about the same

There is a concern that a large volume difference occurs and recognizes it as a defective product.

This problem can be solved when the parting line 11B and the partition wall 13 are arranged at staggered positions, particularly at 90 degree intervals in plan view.

In FIG. 8 and FIG. 9, the parting line, which is thin and hard to see with the naked eye, is exaggerated slightly and is shown as a dotted line.

However, depending on product type and need, the parting line 11B and the partition wall 13 can be arranged at mutually coincident positions, which are illustrated in a side view in the enlarged one-dot dashed line of FIG. 8.

Furthermore, the present invention is to solve the problem that the optical refraction occurs due to the partition 13 partitioning the inner receiving space (S) of the container (C) main body 10 is unfamiliar than the conventional container (13) A shielding portion may be further introduced so that the partition wall is not visible at the position of the main body outer wall overlapping with the overlap.

For example, such a shield may be the recess 11A, as can be seen in FIG. 8.

Furthermore, these indentations 11A

In the case of blow molding of a container, a preform (usually manufactured by applying a known injection molding method) having a divided space divided by a partition wall so as to correspond to a finished container is usually used.

In the process of expanding the preform 30, it is possible to fully expand the bottom of the partition wall.

In the case of bottle-type containers or other containers such as water bottles, the bottom of the container is often raised or the bottom is uneven in order to ensure stable uprightness and design differentiation.

The bottom is often flat or uneven

In order to cope with the problem that the shape of the lower end of the container 10 partition 13 may be caused by various custom designs.

This solves the problem of inability to maintain transparency (or translucency) uniformity (an important factor in providing a consistent color feel of the contents) due to the light refraction at the wall 20 and the side wall of the main body.

To cope with the diversification needs of the container bottom design

As for container C of this invention, it is preferable that the recessed part, especially the recessed part 11A of an upper and lower light shape is introduce | transduced.

In addition, the shield to prevent the partition 13 from being visible from the outside may be implemented using a matte processing method implemented in the shape of a mold during blow molding or through post-processing after the blow molding.

Furthermore, the shielding part may be implemented by repeatedly and continuously using small irregularities (which are preferably formed by a mold) so that the partition wall is not visible.

Various other shields can solve the problem of transparency non-uniformity in the side surface of the partition wall.

In addition, the shielding portion obtained from such matte processing or repeated concave-convex formation method may be formed together with the concave portion.

Next, as shown in FIGS. 8 to 11, the lid 20 is coupled to the opening 15 of the container C body 10, in particular to a narrow spout 15A that fits into a bottle shape. do.

The lid 20 includes a body 21, a displacement member 23, a packing member 25, and an auxiliary lid 27.

The body 21 is coupled to the opening 15 of the main body 10, and has a corresponding spiral portion 21B coupled to the spiral portion 15a of the spout 15A around the opening 15,

When the two spiral portions 15a and 21b are completely coupled, the second sealing portion 25B and the partition wall 13 of the packing member 25 must completely match as shown in FIG. 10.

In addition, the displacement member 23 is coupled to the through-hole 21A circumferential receiving portion 21C of the body 21 through the receiver 23B,

Although the cross-sectional shape of the receptor 23B is circular, the three-dimensional shape is not a spherical shape but a cuboid-like shape, so that the inner space 11 divided by the partition wall 13 is blocked in the container C having two. have.

However, if necessary, by changing the shape of the receiver 23B, it is possible to configure the displacement member 23 which can communicate with each of the three or more inner receiving spaces (e.g., manufactured in the shape of a sphere (in this case, the angle of the body) Accurate positioning in the inner space can be realized by changing the shape of the nozzle type connection part).

The discharging member 23 has a discharge path 23A formed at the connection portion of the nozzle type connected to the receiver 23B.

A locking jaw 21c for limiting the displacement angle of the displacement member 230 located in the receiving portion 21C is formed at the upper part of the through hole 21A of the body 21,

The discharge passage 23A is allowed to communicate with the two compartments 13S accurately.

Next, the packing member 25 which prevents the body 21 from lowering the displacement of the displacement member 23 and prevents leakage of contents is provided.

When the main body 10 and the lid 20, the body 21 is coupled to the first sealing portion 25A for the upper portion of the opening (15) in close contact with the upper surface of the spout, and

The second sealing portion 25B for the upper part of the partition wall (in close contact with the upper surface of the partition wall) is formed.

In addition, the packing member 25 is in communication with the inner partition 13S of the main body between the two sealing portions (25A, 25B),

Has a discharge portion (25C) that is selectively connected to the discharge path (23A) of the displacement member 23,

It is preferred to be produced in one piece.

Furthermore, in order to more completely surround the receptor 23B of the displacement member 23, an auxiliary packing 25D may be further provided.

The secondary packing may be manufactured separately from the packing member 25 or may be manufactured integrally with each other.

Next, in order to prevent the contents from flowing out by turning the displacement member 23 arbitrarily during distribution or storage, the body of the lid 20 may be

The discharge path 23A of the displacement member 23 is a neutral position,

That is, it is preferable to further include an auxiliary lid 27 to allow the discharge passage 23A to stay in the blocked state by the second sealing portion 25B,

The receiving groove is formed in the center of the receiving groove (27A) is coupled to the upper end of the displacement member (23).

As can be seen in Figure 11, to separate the auxiliary lid 27,

In addition, if necessary to remove the sealing film (not shown) that is adhered to the upper surface of the opening 15 and the partition wall 13 of the main body 10 in order to prevent the leakage of the contents first,

When turning the displacement member 23 to the left or right

Partition portion 13S-Outlet portion 25C of packing member 25-Outlet passage 23A of displacement member 23

Is selectively discharged via

The different kinds of contents stored in the two partitions 13S separated by the partition 13 can be arbitrarily selected for drinking.

Next, in FIG. 12, through-holes 13A are formed in the partition 13 of the container body in the postprocessing zone described above with reference to FIGS. 1 and 7 to form an inner accommodation space. Containers of one structure are shown to allow for mutual communication and to be utilized as various containers.

Forming method and the shape of the through hole (13A) can be varied, for example, as shown in the right one-dot chain circle enlarged in Figure 12, may simply be a plurality of circles, slits or other various forms. .

Such a container is useful to prevent the tea leaves (T) from discharging the contents while discharging various tea leaves such as green tea,

It can also be applied to other container areas where it is necessary to separate sesame and broth from each other.

In Fig. 12, the lid 20A shown is fixed powder 20a so that the open powder 20b can open only the right compartment 13S of the container body 10, as shown in the enlarged one-dot chain line. ) Is coupled through the hinge 20c and is shown as having a rhombus shape as a whole.

In the above description, although the conventional publicly known technologies related to specific types of synthetic resins or other blowing molding methods constituting the preform and the container are omitted, those skilled in the art can easily infer, infer, and reproduce them.

In addition, in the above description of the present invention, the blow molding apparatus having a specific configuration and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified, changed, and replaced by those skilled in the art. Should be construed as falling within the protection scope of the present invention.

C: container 10: main body
11: outer wall 11A: recess
13: bulkhead 13S: compartment
15: opening 15A; snout
15B: flange 15a: spiral
20: lid 21: body
21A: through hole 21B: counterpart helix
23: displacement member 23A: discharge path
23B: Receptor 25: Packing member
27: auxiliary lid 27A: receiving groove
30: preform 31: preliminary outer wall
33: reserve bulkhead 33S: reserve compartment
35: opening 35A: spout
35B: flange
B: molding apparatus B1: control unit
110: transfer zone 111: storage unit
113,115,117: conveying means 120: loading zone
121: carrier 123: camera
125: displacement means 127: flipping means
130: heating zone 131: seating member
131A: inserting portion 133: heating means
135: air cooling means 137: shielding member
140: blowing zone 141: stretching rod
143: fixed block 143A: air supply
145: resistance member 145A: resistance rod
145B: Cylinder 145C: Elastic Means
147: Blower 140A: Main Mold
140B: Bottom Block 140C: Stop Block
140D: Upper block 140E: Position change turning means
140F: Fixed guider 150: Post-processing zone
151: drilling means

Claims (6)

Heating means for heating a preform having a preliminary compartment divided by an opening and a preliminary partition;
A heating zone including an air cooling means for uniform heating of the preform; And
And a blowing zone including an air blower for injecting air through the opening of the preform.

And the heating zone further includes a seating member having an insertion portion in which the opening side of the preform is placed, and into which the preliminary partition wall is fitted. Heating means for heating a preform having a preliminary compartment divided by an opening and a preliminary partition;
A heating zone including an air cooling means for uniform heating of the preform; And
And a blowing zone including an air blower for injecting air through the opening of the preform.

The preform further comprises a spout,
And the heating zone further comprises a shielding member which prevents the spout of the preform from being heated by a heating means. Heating means for heating a preform having a preliminary compartment divided by an opening and a preliminary partition;
A heating zone including an air cooling means for uniform heating of the preform; And
And a blowing zone including an air blower for injecting air through the opening of the preform.
And said heating zone further comprises rotating means for pivoting said preform. The method according to claim 1 or 3,
And the heating zone further comprises a shielding member which prevents the spout of the preform from being heated by a heating means. The method of claim 1, wherein the blowing zone is
Mold provided on the outer surface of the preform,
A stretching rod introduced into the preliminary compartment of the preform, and
And a resistance member which retracts according to the elongation of the preform in a state in which the bottom portion opposite the opening of the preform is pressed. The method according to claim 2 or 3,
And the heating zone further includes a seating member having an insertion portion in which the opening side of the preform is placed, and into which the preliminary partition wall is fitted.

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