KR101348128B1 - Manufacturing method for compartmental tube, manufacturing apparatus thereof, compartmental tube thereby, manufacturing method for compartmental tube vessel of squeeze type, and manufacturing apparatus thereof - Google Patents

Abstract

The present invention relates to a method for manufacturing a compartment tube, a device thereof, and a method for manufacturing a compartment tube and a squeeze-type compartment tube container using the same, and a device thereof, wherein the non-radially symmetrical polyethylene compartment tube is formed in a central partition wall in a radial direction. The structure is divided into two semi-circular compartments to enable simultaneous ejection of two-component formulations at the same amount or at a predetermined ratio. According to the manufacturing method and apparatus thereof, a non-radiatively symmetric type shrinkage is made using a polyethylene resin exhibiting a high shrinkage ratio. Since the above-mentioned bilaterally symmetrical non-converging compartment tube can be continuously manufactured by extrusion molding rather than injection molding, the economical efficiency and manufacturing efficiency are high, and the outer diameter can be precisely controlled by suction under reduced pressure in the circumferential direction. Compartment tube as described above, showing dimensional stability and precision According to the manufacturing method and apparatus of the squeeze type compartment tube container using, the two-component preparation in the form of being used in a state of being separated and stored in the first agent and the second agent like a dye, and used in the same amount in a mixed state for use In addition to the effective storage and storage, the two-component formulation can be easily taken out and used at a predetermined constant ratio, thereby producing a squeeze-type tube container having high ease of use with high productivity and economy.

Description

TECHNICAL MANUFACTURING METHOD FOR COMPARTMENTAL TUBE VESSEL OF SQUARE TUBE AND MANUFACTURING METHOD TYPE, AND MANUFACTURING APPARATUS THEREOF}

The present invention relates to a method for manufacturing a compartment tube and a device thereof, a compartment tube and a method for manufacturing a squeeze type compartment tube container using the same, and more particularly, to a compartment divided into two compartments by a central partition. Continuous manufacturing method by extrusion molding of soft tube, efficient device for manufacturing same, compartment tube manufactured by the same, and manufacturing method of squeeze type compartment tube container for attaching and manufacturing head part by injection molding using same, and apparatus therefor It is about.

Conventionally, a single cylindrical tube has been continuously produced effectively by extrusion molding, and radially symmetric porous tubes have also been continuously produced by extrusion molding of polyethylene, polypropylene, or polyvinyl chloride.

However, extrusion of non-radially-complex compartment tube or left-right symmetric flat strip type porous tube can be performed smoothly by metal material such as aluminum or its alloy with high thermal conductivity of 240 ~ 260W / mK, but thermal conductivity of 0.1 ~ 0.5 Extrusion of resin materials that are very low, such as W / mK, is not applicable due to the problems of poor dimensional accuracy due to uneven cooling (heat dissipation) and large residual strains during curing, and in particular, molding shrinkage and shrinkage. This is even more so in the case of highly aromatic polyethylene.

Therefore, a technique for producing a polyethylene compartment tube container except for some porous tubes having a radial symmetry, particularly a bilaterally symmetric compartment tube, which is divided into two chambers by a compartment, by continuous molding instead of extrusion is effectively described. As far as the applicant knows, nothing is known.

Korean Patent No. 0495106 (registered on June 02, 2005) is a flat strip-shaped aluminum having a plurality of holes arranged in two or three rows horizontally to increase the cooling efficiency by increasing the contact area between the object to be cooled and the refrigerant or its Although a die for extruding a metal porous tube for producing a porous tube made of an alloy is proposed, the above technique is for extrusion molding of a metal material having high thermal conductivity, and is applied to extrusion molding of a resin material having a very low thermal conductivity. There is a problem that it is difficult to do.

In addition, Korean Patent No. 0622355 (registered on September 4, 2006) discloses an apparatus for manufacturing a radially symmetric porous tube having a diameter of 300 mm or more using polyethylene having a high shrinkage rate, and a method of manufacturing the same.

The apparatus and manufacturing method proposed in the above-described prior art flow a molten polyethylene resin from an extruder through a base die in the form of a circular tube, and then control the size of the tube through the sizing die, and then a plurality of cooling media are introduced. After passing through the porous die formed with the through-hole forming nozzle (member), and cooling between the inner wall forming mandrel and the outer wall forming mold having the mandrel cooling flow path, the dimensions of the porous tube in the vacuum tank in which the sizing sleeve is extended Is controlling.

However, the perforated tube manufactured by the above-mentioned prior art is defined by a circular wall and has one opening having a large diameter centered therein and a plurality of through holes having a much smaller diameter formed in the circular wall defining the opening. At the same time, the formed radially symmetric type and the openings and the plurality of through holes are circular, and thus can be uniformly converged even if shrinkage occurs, and are not a non-radially symmetrical left-right symmetrical structure. Since there is a need for a double sizing including sizing in a tank and an opening cooling by an internal mandrel having a cooling passage for cooling said opening, and a complicated cooling structure and method for cooling said plurality of through holes, the apparatus and The complexity of the method and the enlarging of the equipment require an increase in the cost of the equipment, in particular such equipment And the method, since each compartment is a non-circular shape divided by the partition wall, the introduced refrigerant cannot apply a uniform pressure to the outside in all directions and is non-radially symmetrical type so that the contraction does not converge uniformly. Extrusion of the compartment tube having a structure can never be achieved effectively.

On the other hand, the tube container having two semi-circular compartments by the partition wall can be injection molded, but the manufacturing by injection molding has not been satisfactorily because there is a problem that its manufacturing efficiency and economy are inferior.

On the other hand, there may be a variety of formulations composed of the first agent and the second agent and used in the same amount mixing or mixing in an appropriate predetermined ratio in use, but typical examples include adhesives such as dyes or two-component epoxy resins or forming a waterproof film A coating agent for these is mentioned.

Here, the dye is usually composed of a first agent which is a mixture of a diamine compound which is a dye intermediate and an alkali agent and a second agent which is an oxidizing agent.

When the dye intermediate is mixed with the oxidizing agent, the dye is changed and developed. The dye intermediate can be dyed in various colors by mixing various kinds of dye intermediates in different ratios, and the alkali agent included in the first agent can easily penetrate the dye. And promote the action of the oxidant, and the oxidant as the second agent decolorizes melanin and converts the dye intermediate into a chromogenic dye.

The degree of dyeing includes hair quality and color, hair thickness, hair damage degree, temperature, distance from hair root, dye application time, pH of first agent, concentration of second agent, first agent and first agent. It is influenced by various parameters such as the blending amount of the two agents, in particular the blending amount and duration of application of the first and second agents are important factors.

However, most of the hair dyes currently on the market are divided into hair dye tube containers containing dye intermediates and alkali chemicals and oxidant tube containers, and the material of the tube containers is usually a metal material.

Therefore, in order to dye the hair, the first agent hair dye and the second agent oxidant must be mixed in a constant ratio. Therefore, prepare a separate mixing container, squeeze an appropriate amount from each tube container containing the hair dye and the oxidant, and then mix homogeneously. The hair is dyed in the desired color by the reaction of the hair dye and the oxidant by burying the mixture in a brush, combing the hair, and passing the hair for a predetermined time.

The first agent hair dye and the second agent oxidant are typically formulated to be mixed in a volume ratio of 1: 1, so if the amount of the second agent oxidant is mixed in excess of the amount of the hair dye, the first agent, the hair is discolored due to a rapid reaction. There is a risk of excessively proceeding or rapid dyeing, while on the other hand, if the amount of the oxidant as the second agent is mixed in a small amount compared to the amount of the hair dye as the first agent, the reaction proceeds very slowly and the hair dye may take too much time. In both of these cases, there is a problem that the surface color guide becomes meaningless over time, and as a result, it may be difficult to dye the hair in the desired color. Therefore, the first hair dye and the second oxidizing agent may not be correct. Mixing in proportions is very important for dyeing.

However, most hair dyes currently on the market contain the first agent hair dye and the second agent oxidant in different containers as described above, so it is not easy to mix them at a constant ratio, thereby controlling hair dyeing time and There is a problem that it is not easy to obtain the desired color of the desired color.

As a conventional method for solving the conventional problems as described above, Korean Patent Registration No. 0,467,265 (January 11, 2005), Korean Patent Publication No. 2006-0081268 (July 12, 2006 publication), Korea Utility Model Registration Various tube containers of the type that can be dyed immediately without squeezing after the squeegee have been proposed, such as No. 0,199,207 (registered on July 29, 2000) and Korean Utility Model No. 0,304,903 (registered on Feb. 06, 2003). These are those in which two containers, each extruded in a circular shape, are accommodated in another container, or another circular extrusion container is contained in one circular extrusion container, or manufactured by injection molding. In the case of using two or three extruded round containers, there is a problem that it is difficult to do quantitative extrusion or quantitative mixing. In case of injection, the production efficiency and economic efficiency are inferior. It was not satisfactory because there is a problem.

Therefore, it is possible to take out the quantitative extraction of the two-component formulation in a predetermined ratio, as well as to allow the quantitative mixing of the two-component formulation, while having high ease of use, high economy and ease of manufacture, and a squeeze type compartment tube including the same. Development of containers has been requested in the art.

Accordingly, a first object of the present invention is to provide a continuous, economical and effective method of manufacturing a dimensional and non-radially symmetric polyethylene compartment tube which is divided into two compartments by a central partition.

It is a second object of the present invention to provide an apparatus for effectively implementing the continuous production method of a polyethylene compartment tube according to the first object described above.

A third object of the present invention is to provide a polyethylene compartment tube which is a symmetrical or non-radiatively symmetrical polyethylene compartment tube by a method for continuously manufacturing the polyethylene compartment tube according to the first and second objects described above and an apparatus for effectively implementing the same.

A fourth object of the present invention is to provide an effective method for producing a squeeze type compartment tube container using a polyethylene compartment tube according to the third object described above.

A fifth object of the present invention is to provide an apparatus for the effective manufacture of a squeeze type compartment tube container using a polyethylene compartment tube according to the third object described above.

According to a first aspect of the present invention for smoothly achieving the first object described above, (A) extruding a molten polyethylene resin from a die having a circular slit and a radial slit across it ; (B) the die is formed by contacting a plurality of disk units having an annular hole in the center thereof so as to form a circular slit, and through the annular holes of the plurality of disk groups in which at least one disk unit is provided with suction holes connected to suction lines. A cooling and sizing step of controlling the outer diameter by depressurization suction through the circular slit while cooling the polyethylene compartment tube continuum extruded from; (C) A method for producing a non-radially symmetrical left and right symmetrical polyethylene compartment tube, comprising: drawing out the polyethylene compartment tube continuum between a set of orbits having a plurality of elastic blocks.

According to a second preferred embodiment of the present invention for smoothly achieving the first object described above, a cutting step of cutting the cooled and sized polyethylene compartment tube continuum to a predetermined length following step (C) above (D) Provided is a method of producing a non-radially symmetrical polyethylene compartment tube of which non-radiation is performed.

According to a third preferred aspect of the present invention for smoothly achieving the first object described above, the polyethylene extruded from the die is formed in the above step (A) by horizontally forming a radial slit across the circular slit of the die. A method for producing a non-radially symmetrical left and right symmetrical polyethylene compartment tube is provided in which the compartment tube continuum is extruded into two upper and lower chambers by horizontal partitions.

According to a fourth preferred embodiment of the present invention for smoothly achieving the first object described above, the cooling in the above step (B) is carried out in a cooling bath, where the cooling water counter current flows against the extrusion direction. Provided is a method for producing a four-symmetric left-right symmetric polyethylene compartment tube.

According to a fifth preferred embodiment of the present invention for smoothly achieving the first object described above, the outer diameter control by the sizing in step (B) above is carried out in a circular slit which is continuously or intermittently increased toward the disk group adjacent to the die. Provided is a method of producing a non-radially symmetrical polyethylene compartment tube which is performed by a non-symmetric type.

According to a sixth preferred aspect of the present invention for smoothly achieving the first object described above, the withdrawal in step (C) is performed by a pair of endless tracks having a plurality of rubber blocks with semicircular recesses formed in the center. Provided is a method for producing a non-radiatively symmetrical polyethylene compartment tube.

According to a first aspect of the present invention for smoothly achieving the above-described second object, there is provided an extrusion screw box having a die and a hopper formed with a circular slit and a radial slit crossing the same; A cooling tank having a cooling water inlet and an outlet configured downstream of the cooling water inlet; The sizing assembly is formed by contacting a plurality of disk units having an annular hole in the center to form a circular slit, and in the at least one disk unit, a plurality of disk groups provided with suction holes connected to suction lines are spaced apart from each other in the cooling bath. Wow; There is provided a non-radially symmetrical polyethylene-symmetrical tube tube extrusion apparatus consisting of a conveying assembly consisting of a set of endless tracks for withdrawing a plurality of resilient blocks located downstream of the cooling bath.

According to a second preferred aspect of the present invention for smoothly achieving the second object described above, there is provided a non-radially symmetrical left and right symmetrical polyethylene compartment tube extrusion apparatus further comprising a cutter located downstream of the transfer assembly.

According to a third aspect of the present invention for smoothly achieving the second object described above, there is provided a non-radially symmetrical polyethylene-symmetrical tube compartment extrusion apparatus in which the die has a circular slit and a radial horizontal slit through the die. do.

According to a fourth preferred aspect of the present invention for smoothly achieving the second object described above, the plurality of disk groups of the sizing assembly is composed of a number of disk units which are continuously or intermittently increased as the adjoining dies. The plurality of disc groups are fixed by a plurality of horizontally extending support bars, wherein the sizing assembly is fixed to the middle of the cooling bath by the plurality of support angles. Is provided.

According to a fifth aspect of the present invention for smoothly achieving the second object, a pair of endless tracks constituting the transfer assembly are positioned up and down, and semicircular recesses are formed on the outer surface of the plurality of elastic blocks. There is provided a non-radially symmetrical left-right symmetrical polyethylene compartment tube extrusion apparatus in which a pair of vertically spaced vertical guide rollers are provided between the transfer assembly and the cooling bath.

According to a preferred aspect of the present invention for smoothly achieving the third object described above, two semi-circular compartments partitioned by partition walls transverse to the radial direction by the manufacturing method and apparatus according to the first and second objects described above are provided. The branches are provided with non-symmetrically symmetrical polyethylene compartment tubes.

According to a first preferred aspect of the present invention for smoothly achieving the fourth object described above, (A) a non-radially symmetric type having two semi-circular compartments partitioned by horizontal partition walls transverse to the radial direction according to the third object described above. Fitting a bilaterally symmetric polyethylene compartment tube of the tube holding inner mold with a horizontal septum insertion slit; (B) fastening the tube holding inner mold into which the polyethylene compartment tube is fitted to the outer mold; (C) injecting molten resin into the head cavity between the inner mold and the outer mold to integrally form a head portion formed of a neck and a shoulder at one end of the polyethylene compartment tube by injection molding; And (D) a method of manufacturing a non-symmetrically symmetrical squeeze type polyethylene compartment tube container, wherein the tube holding inner mold is separated from the outer mold after curing of the head portion, and then the compartment tube formed with the head portion at one end is demolded. do.

According to a first aspect of the present invention for smoothly achieving the fifth object described above, there is provided a rotating block having a rotation axis in the center thereof; A rectangular plate-shaped neck mold installed on four sides of the rotating block and having a plurality of head cavities; A plurality of nozzles provided inside each of the head cavities of the respective neck molds; A shoulder mold installed outside each of the head cavities; It consists of a plurality of tube holding inner molds fitted in each of the above-described mold molds and having horizontal partition insert slits: a plurality having two semi-circular compartments partitioned by partitions transverse to the radial direction according to the third object described above. With the two non-radially symmetrical polyethylene compartment tubes fitted to the outer circumferential surface of the tube holding inner mold through the horizontal bulkhead slit of the respective tube holding inner mold, the tube holding inner mold was fastened to the show mold, and then the rotating block was 90 ° rotated and molten resin is injected through the nozzle to integrally form a head portion consisting of a neck and a shoulder at one end of the polyethylene compartment tube by injection molding, and then rotate 90 ° again to cure, and then again The tube holding inner mold is rotated by 90˚, and then the head That the injection head portion of the compartment that is adapted to demold the tube, the left and right of the non-radiation symmetrical symmetric squeeze type polyethylene compartment tube container shaping apparatus is provided is formed.

The non-radially symmetrical polyethylene compartment tube according to the present invention is divided into two semi-circular compartments by a central partition in the radial direction, and as a structure that allows simultaneous ejection of a two-component formulation in an equal amount or at a predetermined ratio. According to the manufacturing method and apparatus, it is possible to manufacture the above-mentioned compartment tube, which is non-radially symmetrical and non-symmetrical converging, by using polyethylene resin showing a high shrinkage rate, which can be continuously manufactured by extrusion molding rather than injection molding. According to the manufacturing method and apparatus of the squeeze type compartment tube container using the compartment tube described above, since the outer diameter can be precisely controlled by the suction in the circumferential direction, and the manufacturing efficiency is high. As it is stored separately in the first agent and the second agent The squeeze type tube container having high ease of use can be used by effectively separating and storing the two-component preparations in the form of being used in the same amount and mixed in the double compartment, and easily extracting and using the two-component preparations at a predetermined constant ratio. High productivity and economical production

1 is a perspective view of a compartment tube according to the present invention manufactured by the manufacturing method of the present invention.
2 is a schematic diagram of an extrusion apparatus for a compartment tube according to the present invention.
3 is a perspective view of a sizing assembly of the extrusion apparatus of FIG.
4 is a perspective view of a transfer assembly of the extrusion molding apparatus of FIG.
FIG. 5 is a partially cutaway perspective view illustrating a structure of a squeeze-type two-chamber tube container manufactured using the extrusion apparatus of FIG. 2.
6 is a schematic plan view of the head injection molding apparatus.
7 is an enlarged view of a portion A of FIG. 6.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 1 is a non-radially symmetric polyethylene compartment tube 1 according to the present invention manufactured by the manufacturing method of the present invention (1), more precisely a continuously continuous compartment tube continuous body (Fig. A cross-section consisting of two circular semicircular compartments 2, partitioned by a circular outer wall 3 made of polyethylene resin and a partition wall 4 traversing it in the radial direction. It is.

Here, the partition 4 is positioned horizontally during extrusion, which will be described later in the description of FIG. 2.

Figure 2 is a schematic view of the extrusion apparatus 100 of the non-radially symmetrical polyethylene compartment tube 1 of the present invention, Figure 3 and Figure 4 is a sizing assembly of the extrusion apparatus 100 of Figure 2, respectively And a perspective view of the conveying assembly, which will be mentioned together for convenience of description.

Referring to the overall configuration of the extrusion apparatus 100 of the non-radially symmetrical polyethylene compartment tube 1 according to the present invention in order from the upstream to the downstream, an extrusion screw box box 50, die 10, sizing assembly 20 and cooling bath 30, transfer assembly 40, cutting assembly 60, and recovery tray It consists of

First, the extruded screw box 50 will be described. A heater (not shown) and an extruded screw (not shown) for melting the polyethylene resin grains are installed therein, and the polyethylene resin grains are placed at the upper end of the extruded screw box 50. The hopper 53 is mounted, and the extruded screw box 50 is supported by the support angle 52, which is entirely known.

On the other hand, the die 10 in the present invention is formed horizontally in the radial slit (not shown) and the radial direction across it so as to extrude the non-radially symmetrical polyethylene compartment tube continuous body 1a according to the present invention. A slit (not shown) is formed, and the position and shape of the slit (not shown) are the same as those of the circular gray wall 3 and the partition wall 4 in FIG. 1.

Subsequently, the sizing assembly 20 according to the present invention has a plurality of disc units in which a plurality of annular holes (not shown) are formed in the center having an inner diameter that matches the outer diameter of the non-symmetrically symmetrical polyethylene compartment tube continuous body 1a. A plurality of disk groups 22 are formed by contacting each other so that the circular slits 23 are formed in the circumferential direction, and the suction holes 25 connected to the suction lines 26 are installed in the at least one disk unit 21. The plurality of disk units 21 and the plurality of disk groups 22 are formed to be spaced apart from each other, and are fixed by a plurality of horizontally extending support bars 24.

The plurality of disk groups 22 constituting the sizing assembly 20 are composed of a number of disk units 21 that increase continuously or intermittently as the adjoining the die 10 increases. Part of the disk unit 21 is fixed to the bottom of the cooling tank 30 to be described later by the support angle 27 is positioned at the intermediate height of the cooling tank 30 described above.

In the example shown, the above-mentioned disk group 22 is formed of eight groups, and the first disk group 22 adjacent to the die 10 is composed of eight disk units 21, from which the second in the extrusion direction. The sixth to sixth groups are each composed of three disk units 21, the seventh to eighth groups are each composed of two disk units 21, and the support bar 24 is composed of four. Although shown, the number is not restrict | limiting in this invention, It is arbitrary and the number and form of the said support angle 27 are also the same.

The reason why the plurality of disk groups 22 constituting the sizing assembly 20 is composed of a number of disk units 21 that are continuously or intermittently increased as they are adjacent to the die 10 is because of the non-radially symmetric type that is extruded. The symmetrical polyethylene compartment tube continuum 1a is softened at higher temperatures as it is closer to the die 10, and has a larger shrinkage rate during cooling for curing in the cooling bath 30, and a large shrinkage nonuniformity. This is because the necessity of controlling the outer diameter by the decompression suction in the circumferential direction of the outer diameter circumferentially by 23) is greater. Even if the fine gap between the inner circumferential surface of the annular hole (not shown) of the disk unit 21 and the outer circumferential surface of the non-radially symmetrical polyethylene compartment tube continuous body 1a Through this, the outer diameter control by decompression suction by all circular slits 23 becomes possible, and such precise control of the outer diameter of the non-radially symmetrical polyethylene compartment tube continuous body 1a is carried out in each compartment (Fig. 1). (4, 4) are non-circular partitions divided by partitions (see reference numeral 2 in FIG. 1), which are non-radially symmetrical in total and have a left-right symmetrical structure in which contraction does not converge uniformly. It is possible to manufacture the tube continuum 1a.

On the other hand, in the present invention, although it is possible to inject a coolant such as air or cooling water into each of the above-described compartments (refer to reference numerals 4 and 4 in FIG. 1), the injection pressure into the above-mentioned compartments is very precise. If it is not controlled, the partition wall (refer to reference 2 in FIG. 1) may be crushed, and thus the circular outer wall (refer to reference 3 in FIG. 1) may be crushed and the complexity of the device may be accompanied. Refrigerant injection methods such as air or cooling water, which are commonly used in forming single round tubes without conventional bulkheads, are generally undesirable (specifically, in the case of air injection, always maintain the same air injection pressure into both compartments) It is very difficult to do this, and in the case of cooling water injection, there is no shrinkage due to the presence of the initial non-contact area in the area adjacent to the die. There is a possibility that a problem occurs to increase the sealability deterioration of dimensional accuracy.)

On the other hand, the cooling bath 30 is for the cooling hardening of the non-radially-symmetrical left-right symmetrical polyethylene compartment tube continuous body 1a that is extruded, and is fixed by a plurality of support angles 34, and downstream of the die 10 A cooling water inlet 31 is installed, and a cooling water outlet 32 is provided upstream thereof, and a circulating cooling water is filled therein.

The inlet (not shown) and the outlet (not shown) of the non-symmetrically symmetrical polyethylene compartment tube continuous body 1a are respectively located on the front and rear sides of the cooling tank 30 upstream and downstream, respectively. Is formed.

A transfer assembly 40 is installed downstream of the sizing assembly 20 and the cooling bath 30, and the transfer assembly 40 draws out or takes over the non-radially symmetric polyethylene compartment tube continuum 1a. It consists of a set of endless tracks 41 in which a plurality of elastic blocks 42 having semi-circular recesses 42a are formed at the center of the outer surface thereof.

Here, the elastic block 42 may be formed of natural or synthetic rubber.

In the illustrated example, a set of caterpillars 41 constituting the transfer assembly 40 are positioned up and down, respectively, and vertically placed vertically apart from the transfer assembly 40 and the cooling bath 30. The pair of guide nip rollers 47 which were iii) were provided.

In the figure, reference numeral 43 is a drive shaft, 44 is a driven shaft, 45 is a safety cover, and 46 is a support base.

The cutting assembly 60 is located downstream of the transfer assembly 40, and in the illustrated example, the guides are located slightly apart upstream and downstream on the plate 62 supported by the plurality of support angles 63. A cutter 65 that moves up and down by the cutting cylinder 64 is mounted between the pipes 61 and 61a to cut the extruded non-radially symmetrical polyethylene compartment tube continuous body 1a into a predetermined predetermined length.

Subsequently, the non-radially symmetrical polyethylene compartment tube 1 according to the present invention, which is cut and formed to a predetermined predetermined length in the cutting assembly 60, is recovered by a recovery tray located downstream thereof. .

The manufacturing method of the non-radially symmetrical left and right symmetric polyethylene compartment tube 1 according to the present invention by the extrusion molding apparatus 100 according to the present invention will be briefly mentioned while avoiding duplication.

The method for producing the non-radially symmetrical polyethylene compartment tube 1 according to the invention comprises the following steps.

(A) polyethylene resin extrusion step:

The molten polyethylene resin is extruded from die 10 having a circular slit (not shown) and a radial slit (not shown) across it.

(B) Cooling and Sizing Steps:

A plurality of disk units 21 having an annular hole (not shown) are formed in contact with each other such that a circular slit 23 is formed, and at least one disk unit 21 has a suction line 26. Non-radially symmetrical left-right symmetrical polyethylene compartment tube continuous body 1a extruded from the die 10 through the annular holes (not shown) of the plurality of disk groups 22 provided with connected suction holes 25. The outer diameter is controlled by the suction under reduced pressure through the circular slit 23 while cooling.

(C) withdrawal steps:

The non-radially symmetrical left / right symmetrical polyethylene compartment tube continuous body 1a is drawn out (or taken over) between a set of endless tracks 41 having a plurality of elastic blocks 42 having semi-circular recesses 42a formed on an outer surface thereof. do.

In the present invention, a cutting step of cutting the non-radially symmetrical left-right symmetrical polyethylene compartment tube continuous body (1a), which has been cooled and sized (D), is also performed following the withdrawal step (C) described above.

In the polyethylene resin extrusion step (A), the non-radiative symmetric type extruded from the die 10 by horizontally forming a radial slit (not shown) across the circular slit (not shown) of the die 10. The bilaterally symmetrical polyethylene compartment tube continuum 1a is extruded to be divided into two upper and lower compartments (see 4 and 4 in FIG. 1) by horizontal partitions (see 2 in FIG. 1), wherein the slanders described above The reason why the four-symmetrical bilaterally symmetrical polyethylene compartment tube continuum 1a does not extrude in the form of a vertical bulkhead is that the result of repeated experiments by the present inventors is more uniform shrinkage due to uniform heat dissipation. In order to consider the initial dimensional stability and to minimize the late form strain by the transfer assembly 40, in particular to maintain the shape and dimensional precision Extrusion of important bulkheads in the form of horizontal bulkheads (see reference numeral 2 in FIG. 1) overcomes the deformation caused by the difference between the top and bottom water temperature in the cooling bath 30, and at the same time, the top and bottom elastic blocks of the transfer assembly 40 ( This is particularly important in the present invention, as it prevents the partition wall from being finely crushed due to the pressure of 42), and consequently the garden shape of the circular outer wall (see 3 in FIG. 1) is finely collapsed. .

In addition, in the cooling and sizing step (B) described above, in the cooling bath 30, the cooling water becomes countercurrent or counter current flow with respect to the extrusion direction to increase the strain due to rapid cooling. It is more preferable than parallel current flow in terms of suppression.

Subsequently, FIG. 5 is a partially cutaway perspective view of the squeeze-type two-chamber tube container 5 manufactured using the extrusion molding apparatus 100 according to the present invention of FIG. 2, more specifically, the circular outer wall 3. By injection molding at one end of the above-described extruded non-radially symmetrical polyethylene compartment tube (not shown; see FIG. 1) having a compartment 2, 2 divided by a partition 4. The head part 6 which consists of the shoulder 8 and the neck 7 is formed, and the partition extension part 9 is formed at the same time, and in the example shown, it opposes the one end to which the head part 6 was attached. The other end is injected into each compartment (2, 2) the contents of the second agent is sealed by a known heat fusion means.

6 and 7 are schematic plan views of the head injection molding apparatus 80 and an enlarged view of a portion A of FIG. 6, respectively, to explain a method of manufacturing the squeeze type compartment tube container according to the present invention together with the apparatus. do.

Head injection molding apparatus 80 according to the present invention is a substantially square rotary block 81 having a rotating shaft 82 in the center, and is installed on each of the four sides of the rotary block 81, a plurality of head cavity ( A rectangular plate-shaped neck mold 83 having a 87, a plurality of nozzles 85 provided inside each of the head cavities 87 of the respective neck molds 83, and the head cavity 87 described above. ) And a plurality of tube-holding inner molds 86 fitted to each of the above-described shoulder dies 84 and having a horizontal partition insert slit 88.

In the illustrated example, four identical neck molds 83 are provided on each of four sides of the rotary block 81, and injection molding is performed by 90 ° of the rotary block 81 in the process from A to D. FIG. It is performed repeatedly by the rotation of.

The process A described above is a non-radially symmetrical bilaterally symmetrical polyethylene through the horizontal partition insert slit 88 of the tube holding inner mold 86 having the end flange 86a and the head portion 86b and the horizontal partition insert slit 88. By fitting the partition wall 4 of the compartment tube 1 on the outer circumferential surface of the tube holding inner mold 86, the inner surface of the non-radially symmetric polyethylene compartment tube 1 of the above-mentioned non-symmetric type is closely mounted, and then As a process of fastening a tube holding inner mold 86 to the shoolder mold 84, the head portion 86a of the tube holding inner mold 86, the neck mold 83, and the shoolder mold 84 are described. ), The head cavity 87 is formed.

The head cavity 87 forms the neck cavity 87a, the shredder cavity 87b, and the partition cavity 87c, the front end of which is fitted with the nozzle 85 and the nozzle passage 85a is the neck described above. It communicates with the cavity 87a and the partition cavity 87c.

Here, one end of the head portion (6) side of the non-radially symmetrical polyethylene compartment tube 1 is pressed by the tube holding inner mold 86 and the shoulder die 84.

In the process B, the polyethylene molten resin is formed from the nozzle 85 connected to the port (not shown) and the mold runner gate (not shown) located in the rotary block 81. 87) being integrated into one end of the non-radially symmetrical polyethylene compartment tube 1 described above by injection curing.

Subsequently, in the above C process, the injection molded head part 6 has a time interval to cure.

Finally, in the above-described process D, the tube holding inner mold 86 is demolded in the reverse order from the process A described above with the shoolder mold 84, and then the head mounted on the tube holding inner mold 86. The squeeze type compartment tube container 5 in which the part 6 is mounted is removed, and the above process is repeated.

Briefly referring to the manufacturing method of the non-radially symmetrical polyethylene squeeze type compartment tube container 5 of the non-radially symmetric type according to the present invention by the head part 6 injection molding apparatus 80 according to the present invention described above. Let's do it.

The method of manufacturing the non-radially symmetrical polyethylene squeeze type compartment tube container 5 according to the present invention includes the following steps.

(A) Step of mounting compartment tube (1):

Non-symmetrically symmetrical polyethylene compartment tube (1) having two semicircular compartments (2,2) partitioned by horizontal partitions (4) transverse to the radial direction in a tube holding with horizontal partition insertion slits (88). It fits in the outer peripheral surface of the metal mold | die 86.

(B) Tube holding inner mold (86) fastening step:

A tube holding inner mold 86 into which the non-symmetrically symmetrical polyethylene compartment tube 1 is fitted is fastened to an outer mold (not shown) consisting of a neck mold 83 and a shoulder mold 84. .

(C) Head injection molding step:

Molten resin is injected into the head cavity 87 between the tube holding inner mold 86 and the outer mold (not shown) consisting of the neck mold 83 and the shoulder mold 84, and the neck 7 ) And the head portion 6 made of the shoulder 8 are integrally formed on one end of the non-radially symmetrical left / right symmetrical polyethylene compartment tube 1 by injection molding.

(D) demolding step:

After the hardening of the head portion 6, the tube holding inner mold 86 is separated from the outer mold (not shown) consisting of the neck mold 83 and the shoulder mold 84, and then the head at one end. The non-radiative symmetrical polyethylene compartment tube container 5 in which the portion 6 is formed is demolded.

As described above, the non-radially symmetrical squeeze type polyethylene compartment tube container 5 is manufactured, and then the contents of the second agent are injected into each compartment 2 and 2, and then sutured by known heat fusion means. do.

By using the squeeze type double compartment tube container (5), when the two types of chemical reactions such as oxidant for hair dyeing and hair dye or two-component adhesive resin should be mixed, a predetermined constant mixing ratio, usually Can be easily and easily taken out at an equivalent ratio, and the convenience of use is high by fastening a conventional screw cap, a press-fit lid, or a one-touch type flip cap. The compartment tube 1 is manufactured by extrusion with high productivity, and then the head part 6 consisting of the shoulder 8 and the neck 9 for fastening a lid such as a flip cap is separately injected into one end thereof. After molding, the other end can be simply joined by heat fusion, so that it has high productivity and ease of manufacture, and can be manufactured economically due to a simple container structure.

As mentioned above, although the Example shown in the accompanying drawings was described with respect to this invention, this invention is not limited to this, A various change and correction are possible for those skilled in the art, of course, This is also within the scope of the present invention.

1: non-radially symmetrical polyethylene compartment tube according to the present invention
1a: compartment tube continuum 2: compartment
3: round outer wall 4: horizontal wall
5: squeeze type compartment tube container according to the present invention
6: head part 7: neck
8: Show 9: bulkhead extension
10: die
20: sizing assembly
21: disk unit 22: disk group
23: round slit 24: support bar
25: suction hole 26: suction line
27: support angle
30: cooling bath
31: Cooling water inlet 32: Cooling water outlet
33: sleep 34: support angle
40: transfer assembly
41: caterpillar 42: elastic block
42a: semicircular recessed portion 43: drive shaft
44: driven shaft 45: safety cover
46: support base 47: guide nip roller
50: extrusion assembly
51: extrusion screw box 52: support angle
53: hopper
60: cutting assembly
61: guide tube 61a: guide tube
62: plate 63: support angle
64: cutting cylinder 65: cutter
70: recovery tray
80: head injection molding machine
81: rotation block 82: rotation axis
83: neck mold 84: show mold
85: nozzle 86: tube holding internal mold
86a: end flange 86b: head part
87: head cavity 87a: neck cavity
87b: show cavity cavity 87c: bulkhead cavity
88: horizontal bulkhead insertion slit
100: extrusion molding apparatus according to the present invention

Claims (15)

Method for producing a non-radiative symmetrical polyethylene compartment tube consisting of the following steps:
(A) extruding a molten polyethylene resin from a die having circular slits and radial slits across them;
(B) the die is formed by contacting a plurality of disk units having an annular hole in the center thereof so as to form a circular slit, and through the annular holes of the plurality of disk groups in which at least one disk unit is provided with suction holes connected to suction lines. A cooling and sizing step of controlling the outer diameter by depressurization suction through the circular slit while cooling the polyethylene compartment tube continuum extruded from; And
(C) drawing the polyethylene compartment tube continuum between a set of caterpillars having a plurality of elastic blocks. The non-radially symmetric polyethylene compartment tube according to claim 1, wherein a cutting step of cutting the cooled and sized polyethylene compartment tube continuum to a predetermined length is performed following step (C). Way. The method of claim 1, wherein in the step (A), the polyethylene compartment tube continuum extruded from the die is divided into two upper and lower chambers by the horizontal partition by horizontally forming a radial slit across the circular slit of the die. Method for producing a non-radiative symmetrical polyethylene compartment tube. The method of producing a non-radially symmetrical polyethylene compartment tube according to claim 1, wherein the cooling in the step (B) is performed in a cooling bath and the cooling water flows in counter current flow with respect to the extrusion direction. The method of claim 1, wherein the outer diameter control by the sizing in step (B) is performed by a circular slit which is continuously or intermittently increased toward the disk group adjacent to the die. Way. The method of manufacturing a non-radially symmetrical left-right symmetrical polyethylene compartment tube according to claim 1, wherein the withdrawal in step (C) is performed by a set of endless tracks having a plurality of rubber blocks having a semi-circular recess in the center. A non-radially symmetrical left-right symmetrical polyethylene compartment tube manufactured by the manufacturing method according to any one of claims 1 to 6. An extruded squaw box having a circular slit and a die and a hopper in which a radial slit is traversed;
A cooling tank having a cooling water inlet and an outlet configured downstream of the cooling water inlet;
The sizing assembly is formed by contacting a plurality of disk units having an annular hole in the center to form a circular slit, and in the at least one disk unit, a plurality of disk groups provided with suction holes connected to suction lines are spaced apart from each other in the cooling bath. Wow;
Consisting of a conveyance assembly consisting of a set of endless tracks for the extraction of the compartment tube continuum is installed with a plurality of elastic blocks located downstream of the cooling tank
Non-symmetrical symmetrical polyethylene compartment tube extrusion machine. 9. The apparatus of claim 8, further comprising a cutter located downstream of said transfer assembly. 9. The apparatus of claim 8, wherein said die has a circular slit and a horizontal horizontal slit through it. 9. The apparatus of claim 8, wherein the plurality of disk groups of the sizing assembly is composed of a number of disk units that are continuously or intermittently increased as they are adjacent to the die, wherein the plurality of disk groups are supported by a plurality of horizontally extending support bars. A non-radially symmetrical left-right symmetrical polyethylene compartment tube extrusion molding device, wherein the sizing assembly is fixed and supported in the middle of the cooling bath by a plurality of support angles. The method of claim 8, wherein a pair of endless tracks constituting the transfer assembly is positioned up and down and a semi-circular recess is formed on the outer surface of the plurality of elastic blocks, a pair of between the transfer assembly and the cooling bath Non-radially symmetrical left and right symmetrical polyethylene compartment tube extrusion machine with vertically spaced vertical guide rollers. Method for producing a non-radiative symmetrical squeeze type polyethylene compartment tube container consisting of the following steps:
(A) fitting a non-radially symmetrical bilaterally symmetric polyethylene compartment tube having two semi-circular compartments partitioned by a horizontal septum transverse to the radial direction according to claim 7 to the outer circumferential surface of the tube-holding inner mold having a horizontal septum insertion slit ;
(B) fastening the tube holding inner mold into which the polyethylene compartment tube is fitted to the outer mold;
(C) injecting molten resin into the head cavity between the inner mold and the outer mold to integrally form a head portion formed of a neck and a shoulder at one end of the polyethylene compartment tube by injection molding; And
(D) after the hardening of the head portion, separating the tube holding inner mold from the outer mold and demolding the compartment tube having the head portion formed at one end. The method according to claim 13, wherein after the step (D), the contents of the binary agent are injected into each of the non-radially-symmetrical left-right symmetric polyethylene compartment tube compartments in which the head part is injection molded and integrally joined to one end thereof. A method for producing a non-radially symmetrical squeeze-type polyethylene compartment tube container, wherein the other end is closed by means of heat fusion means. A rotation block having a rotation axis in the center;
A rectangular plate-shaped neck mold installed on four sides of the rotating block and having a plurality of head cavities;
A plurality of nozzles provided inside each of the head cavities of the respective neck molds;
A shoulder mold installed outside each of the head cavities;
It consists of a plurality of tube holding inner molds fitted in each of the above-described mold molds and having horizontal partition insert slits:
A plurality of non-radially symmetrical polyethylene partition tubes having two semi-circular compartments partitioned by the partition wall transverse to the radial direction according to the above 7, the outer peripheral surface of each of the tube holding inner mold through the horizontal partition insertion slit of the inner mold The tube holding inner mold is fastened to the show mold in a state where it is inserted in the mold, and then the rotating block is rotated by 90 ° and molten resin is injected through the nozzle so that the neck and the show at one end of the polyethylene compartment tube. Compartmentally formed by the head portion formed by injection molding, and then rotated by 90 ° again to harden, and then separated from the tube holding inner mold in the state that rotated again by 90 ° from the mold, the compartment formed with the head at one end Designed to demold the tube,
Head injection molding device for non-radially symmetrical squeeze type polyethylene compartment tube container.

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