KR102510715B1 - PVC sash formed pattern on its surface, and method and apparatus of manufacturing the PVC - Google Patents

Abstract

An apparatus for manufacturing a PVC chassis according to an embodiment of the present invention includes a first hopper accommodating a raw material for a PVC chassis; a second hopper accommodating the PVC compound for coloring; and an extruder for extruding the raw material accommodated in the first hopper and the compound accommodated in the second hopper.

Description

PVC sash formed pattern on its surface, and method and apparatus of manufacturing the PVC

The present invention relates to a polyvinyl chloride (PVC) chassis, and more particularly, to a method and apparatus for manufacturing the PVC chassis having a pattern formed thereon.

General synthetic resin windows and doors are mainly manufactured in a single color such as white, so they have consistency but lack diversity in terms of design, that is, freedom.

In order to solve these problems and satisfy customer needs, "wrapping" is devised to add design diversity to the synthetic resin window and door materials.

However, this lapping method requires additional processes after all processes for manufacturing synthetic resin windows and doors have been completed, so it requires extra time and manpower, and it is practically difficult to automate the operation due to the nature of the process. A problem that affects the delivery date due to a decrease in production compared to the product and a time loss of 1 to 1.5 days at the shortest, the sheet used for wrapping is polyester (Poly Ester, PE), so heat and external pressure after attachment Since it is vulnerable to, there are problems such as easy discoloration and deformation in the future.

As another method, in the prior literature (Patent Registration No. 0331997), a method of transferring a pattern to the surface of a PVC chassis with a special ink, applying a transparent coating layer, and then instantly curing it with heat is used. However, in the prior literature, in order to transfer and coat the pattern on the PVC chassis, first, when the PVC chassis is moved horizontally by an automatic conveyor in a state where special ink is injected into the silicon roller side on which the desired pattern is engraved, the silicon roller This is a method of transferring the pattern to the surface and coating the PVC chassis on which the pattern is transferred through a coater. After manufacturing the PVC chassis, a separate device, that is, a silicon roller into which the desired pattern is engraved and special ink is injected, is used. There is a problem of having and using a coating machine.

An object of the present invention is to form a pattern on the surface of the PVC chassis by using a principle of dispersibility between a raw material for manufacturing the PVC chassis and a raw material for forming the pattern.

Another object of the present invention is to increase productivity by simplifying a manufacturing process of a PVC chassis having a pattern formed on the surface thereof.

Another object of the present invention is to diversify the color and shape of the pattern formed on the surface of the PVC chassis to secure the diversity of the PVC chassis products and to broaden the range of choices for consumers.

The technical problems to be achieved in the present invention are not limited to the above technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

An apparatus for manufacturing a PVC chassis according to an embodiment of the present invention for solving the above problems includes a first hopper for accommodating a raw material for a PVC chassis; a second hopper accommodating the PVC compound for coloring; and an extruder for extruding the raw material accommodated in the first hopper and the compound accommodated in the second hopper.

According to the PVC chassis manufacturing apparatus according to an embodiment of the present invention, the extruder has physical properties based on at least one of a difference in melting point between a raw material accommodated in the first hopper and a compound accommodated in the second hopper and a difference in shape of constituent materials. It is characterized in that a pattern is formed on the surface of the PVC chassis using the dispersibility principle according to the difference.

The apparatus for manufacturing a PVC chassis according to an embodiment of the present invention may further include a feeding machine for feeding the PVC compound for coloring stored in the second hopper into the extruder.

According to the apparatus for manufacturing a PVC chassis according to an embodiment of the present invention, the shape of the constituent material indicates a difference in particle size between the PVC chassis raw material accommodated in the first hopper and the PVC compound for coloring contained in the second hopper. to be characterized

According to the apparatus for manufacturing a PVC chassis according to an embodiment of the present invention, the feeding machine adjusts the feeding speed by referring to the screw type or diameter of the extruder and the particle size of the PVC compound for coloring contained in the second hopper. to be characterized

A method for manufacturing a PVC chassis according to an embodiment of the present invention includes receiving a raw material for a PVC chassis; receiving a PVC compound for coloring; and extruding the raw material contained in the first hopper and the compound contained in the second hopper.

According to the method for manufacturing a PVC chassis according to an embodiment of the present invention, the step of feeding the PVC compound for coloring stored in the second hopper into an extruder is characterized in that it further comprises.

According to the method for manufacturing a PVC chassis according to an embodiment of the present invention, the extrusion processing step is based on at least one of a difference in melting point between a raw material accommodated in the first hopper and a compound accommodated in the second hopper and a difference in shape of constituent materials. It is characterized in that a pattern is formed on the surface of the PVC chassis using the dispersibility principle according to the difference in physical properties.

According to the method for manufacturing a PVC chassis according to an embodiment of the present invention, the shape of the constituent material indicates a difference in particle size between the PVC chassis raw material contained in the first hopper and the PVC compound for coloring contained in the second hopper. to be characterized

According to the method for manufacturing a PVC chassis according to an embodiment of the present invention, in the step of feeding into the extruder, the feeding speed is determined by referring to the screw type or diameter of the extruder and the particle size of the PVC compound for coloring stored in the second hopper. It is characterized in that it further comprises the step of adjusting.

A PV chassis according to an embodiment of the present invention is characterized in that a pattern is formed on the surface of the PV chassis according to the above-described method for manufacturing the PV chassis.

According to the present invention as described above,

First, there is an effect of forming a pattern on the surface of the PVC chassis by using the principle of dispersibility between a raw material for manufacturing the PVC chassis and a raw material for pattern formation.

Second, there is an effect of increasing productivity by simplifying the manufacturing process of the PVC chassis having a pattern formed on the surface thereof.

Third, there is an effect of securing the diversity of the PVC chassis product and broadening the range of choices of consumers by configuring the color and shape of the pattern formed on the surface of the PVC chassis in various ways.

However, the effects obtainable through the present invention are not limited thereto.

1 is a diagram illustrating a manufacturing process of a PVC chassis related to the present invention.
2 is a front view of an apparatus for manufacturing a PVC chassis according to an embodiment of the present invention.
FIG. 3 is a side view of the PVC chassis manufacturing apparatus of FIG. 2 .
4 is a flowchart illustrating a method of manufacturing a PVC chassis having a pattern formed on a surface according to an embodiment of the present invention.
5 is a view showing a PVC chassis having a pattern formed on a surface manufactured according to an embodiment of the present invention.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. The detailed description set forth below in conjunction with the accompanying drawings is intended to describe exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced.

Only these embodiments are provided to complete the disclosure of the present invention, to fully inform those skilled in the art of the scope of the invention to which the present invention belongs, and the present invention will be defined by the scope of the claims. only

In some cases, in order to avoid obscuring the concept of the present invention, well-known structures and devices may be omitted, or may be shown in block diagram form centering on core functions of each structure and device. In addition, the same reference numerals are used to describe the same components throughout the present specification.

Throughout the specification, when a part is said to "comprising" or "including" a component, this means that it may further include other components, not excluding other components unless otherwise stated. do.

In addition, the term “…unit” described in the specification means a unit that processes at least one function or operation, and may be implemented as hardware, software, or a combination of hardware and software. Further, "a" or "an", "one", "and similar related words, in the context of describing the present invention, are both singular and plural unless otherwise indicated herein or clearly contradicted by context." It can be used in a meaning including.

In addition, "specific" terms used in the embodiments of the present invention are provided to aid understanding of the present invention, and "unless defined otherwise," all terms used herein, including technical or scientific terms, are intended to support the present invention. It has the same meaning as commonly understood by a person of ordinary skill in the art to which it pertains. The use of these specific terms may be changed in other forms without departing from the spirit of the present invention.

In the present specification, various embodiments of a polyvinyl chloride (PVC) chassis having a pattern formed on a surface according to the present invention, and a manufacturing method and apparatus thereof will be described.

Hereinafter, various embodiments according to the present invention will be described with reference to the accompanying drawings, as follows.

1 is a diagram illustrating a manufacturing process of a PVC chassis related to the present invention.

As shown in FIG. 1, the PVC chassis having a pattern formed on the surface according to the present invention is sequentially manufactured through the processes of mixing, transporting, extruding, cooling, taking out, cutting, and packaging or shipping. However, the present invention is not limited to the above manufacturing process. Accordingly, some processes may be excluded or some processes may be added in the PVC manufacturing process according to embodiments. In addition, some of the order of the manufacturing process may be changed.

The PVC chassis manufacturing process shown in FIG. 1 is based on a general PVC manufacturing process, and briefly described as follows.

Mixing refers to the process of mixing the PVC chassis raw materials.

Transfer refers to a process of transferring the blended raw materials to the hopper of FIGS. 2 and 3 for receiving them.

Extrusion refers to a process of extruding the raw material transferred to the hopper. In particular, the extrusion process is a process to which the present invention is applied, and details thereof will be described later.

Cooling refers to a process of cooling the extruded PVC chassis.

Take-up refers to a process of taking-up the extruded and cooled PVC chassis.

Cutting refers to a process of cutting the PVC chassis to be drawn into an appropriate size.

Packing and shipping refers to the process of packing and shipping the cut PVC chassis.

On the other hand, terms related to the manufacturing process are selected as general terms as much as possible, but can be replaced with other terms, but are not limited thereto.

In the present invention, in particular, the PVC chassis is extruded based on the PVC chassis raw material and the raw material (pattern raw material) for pattern formation on the surface of the PVC chassis. Although hereinafter, the above-described extrusion process is described as an example in the present specification, but is not necessarily limited thereto, and may be applied to other processes.

Referring to FIGS. 2 to 4 , a process of manufacturing a PVC chassis having a pattern formed thereon will be described in detail.

In addition, hereinafter, for the sake of understanding and convenience of description of the present invention, the extrusion process will be mainly described.

FIG. 2 is a front view of an apparatus for manufacturing a PVC chassis according to an embodiment of the present invention, and FIG. 3 is a side view of the apparatus for manufacturing a PVC chassis of FIG. 2 .

5 is a view showing a PVC chassis having a pattern formed on a surface manufactured according to an embodiment of the present invention.

2 and 3 do not show all of the PVC chassis manufacturing apparatuses according to the present invention, but only a part of the manufacturing apparatuses related to the extrusion process as described above.

Referring to FIGS. 2 and 3 , an apparatus for manufacturing a PVC chassis according to the present invention includes a first hopper 210 , a second hopper 220 , and an extruder 240 . At this time, the PVC chassis manufacturing apparatus may further include a feeding machine 230 . Meanwhile, the second hopper 220 may include a display panel 225 .

The first hopper 210 accommodates the mixed and transported PVC chassis raw material (raw material A). One side of the first hopper 210 is connected to the extruder 240 so that the raw material A accommodated in the first hopper 210 is introduced into the extruder 240 .

The second hopper 220 accommodates the pattern raw material (raw material B) (eg, PVC compound for coloring). In particular, referring to FIG. 2 , the second hopper 220 is spaced apart from the first hopper 210 . Accordingly, the second hopper 220 further includes a passage portion to transfer the received raw material B to the extruder 240 .

Meanwhile, one surface of the passage part of the second hopper 220 may be directly connected to the extruder 240 or connected to one surface of the first hopper 210 .

Also, referring to FIG. 2 , the second hopper 220 is preferably installed at a position higher than at least the height of the extruder 240 based on the ground where the PVC chassis manufacturing apparatus is provided. Accordingly, the passage of the second hopper 220 is preferably formed to have a predetermined angle of inclination with respect to the ground.

Referring to FIG. 2, the direction of movement of the raw material from the second hopper 220 to the extruder 240 is indicated, and it is preferable that the raw material has an appropriate inclination so that the raw material moves well without a separate device or power. Although not shown, the passage portion is preferably implemented in a cylindrical shape, but is not necessarily limited thereto.

In addition, although not shown, at the lower ends of the first hopper 210 and the second hopper 220 connected to the extruder 240, control means (eg For example, an opening/closing unit, etc.) may be provided.

The feeding machine 230 is disposed in relation to the second hopper 220 and is involved in feeding control of the raw material B accommodated in the second hopper 220 to the extruder 240 .

The display panel 225 is provided on one surface of the second hopper 220 and is detachable, and provides various information such as setting control information of the second hopper 220 and information about raw materials accommodated in the second hopper 220. provides

The display panel 225 may provide information on the first hopper 210 as well as the second hopper 220 . The above information may include extrusion temperatures of raw materials A and B, particle sizes of raw materials A and B, and the like.

In addition, the display panel 225 may also provide information on the nominal capacity of the extruder 240 and setting control information of the feeding machine 230 .

For example, the nominal capacity information of the extruder 240 includes information on the screw type or diameter of the extruder.

In the above, the feeding machine setting control information may include information related to a raw material input speed and speed control. The raw material input speed may be 50 to 900 rpm, and the value may be arbitrarily adjusted and maintained or maintained according to setting control.

Meanwhile, unlike those shown in FIGS. 2 and 3 , the display panel 225 may be provided on the first hopper 210 or may be provided in another configuration in the PV chassis manufacturing apparatus.

The shape of the hopper shown in FIGS. 2 and 3 is not necessarily limited to the illustrated shape, and may be implemented in various shapes. However, it is preferable that the shape to be implemented has a structure in which the raw material to be transferred can be well transferred to the extruder 240 without a separate device or the like.

Therefore, the PV chassis manufacturing apparatus according to the present invention can manufacture a product having a pattern formed on its surface compared to the conventional PV chassis as shown in FIG. 5 simply by providing one more hopper for the pattern material in the current apparatus. In other words, the existing PV chassis manufacturing apparatus can be used as it is, and it is not necessary to newly configure the manufacturing apparatus for the present invention.

The above-described apparatus for manufacturing a PVC chassis according to the present invention shown in FIGS. 2 and 3 uses the above configuration, but forms a pattern on the surface of a PVC chassis manufactured using the principle of extrusion dispersibility between raw materials A and B. .

Hereinafter, the method of forming a pattern on the surface of the manufactured PVC chassis will be described in detail with reference to the structure of the PV chassis manufacturing apparatus shown in FIGS. 2 and 3.

In other words, in the present invention, by installing an additional raw material input facility, that is, an additional hopper 220 in the extrusion process, the raw material A accommodated in the first hopper 210 and the raw material B accommodated in the second hopper 220 are dispersible. It is possible to add design elements by extruding at the same time using a white or monochromatic PVC chassis to impart color or/and pattern diversity to the surface.

That is, a pattern is implemented during extrusion using the difference in physical properties between the raw material A accommodated in the first hopper 210 and the raw material B accommodated in the second hopper 220, and the difference in physical properties refers to, for example, the melting point (melting point), form of constituent material (size and shape of raw material particles), etc. may be referred to.

First, the melting point among the differences in physical properties will be described.

원료는 혼합물이기 때문에 각 세부 원료들의 용융점은 다를 수 있음)이고, 원료 B의 용융점은 약 145~245

라고 가정하면, 상기 용융점의 온도가 서로 상이하여, 결국 두 원료 사이의 압출 속도에 차이가 발생할 수 있다. For example, the melting point of raw material A is about 130 to 240

Since the raw material is a mixture, the melting point of each detailed raw material may be different), and the melting point of raw material B is about 145 to 245

Assuming that, the melting point temperature is different from each other, and eventually a difference in extrusion speed between the two raw materials may occur.

At this time, if it is assumed that the melting speed between the two raw materials is the same or similar, a third color in which the unique colors of each of the two raw materials are mixed can be implemented (eg, A white + B red = C pink). ).

Therefore, the unique color of B can be expressed by creating a specific pattern using the difference in the melting speed of the two raw materials, that is, the principle of dispersibility.

Meanwhile, Table 1 below shows an extrusion temperature table for each extrusion process sector. However, this relates to the use of raw material A alone.

Sector Silinder
(cylinder) Head
(head) Dice
(Dice/Mould)

Temperature (

220 to 240 130 to 160 170 to 200

The contents of the raw material A and the raw material B related to the aforementioned melting point are examples for the convenience of understanding and explanation of the present invention, but the present invention is not limited thereto. In other words, the melting point may vary depending on which raw materials are used as raw material A and raw material B, and a raw material for forming a desired pattern may be selected by referring to the melting point. Explain.

For example, assuming that the particle size of raw material A is about 180 μm or less and the particle size of raw material B is 4,000 to 5,000 μm, based on the particle size, the flowability of raw material B compared to raw material A can be considered to be relatively better. .

Therefore, it may be necessary to consider the difference in fluidity of the raw materials in the extrusion process step, that is, to adjust the feeding speed of the raw material B.

Regarding the adjustment of the feeding speed of the raw material B, reference can be made to Table 2 below. Table 2 relates specifically to the feeding speed of the feeding machine 230 according to the extruder nominal capacity (Spec.).

Screw type (diameter) 95mm / 90mm / 85mm 65 mm / 60 mm Feeding Speed (rpm) 300 to 350 100 to 150

The setting value may be applied differently according to the screw type of the extruder 240, and may be determined based on the diameter of the screw. Meanwhile, the size of the pattern and the repetition rate of the pattern may be determined according to the set value.

Although only one additional raw material (raw material B) has been described as an example in this specification, the raw material may be further added according to embodiments, and accordingly, a hopper or the like may be additionally installed.

4 is a flowchart illustrating a method of manufacturing a PVC chassis having a pattern formed on a surface according to an embodiment of the present invention.

Referring to FIG. 4 , a method for manufacturing a PVC chassis according to the present invention is performed as follows.

First, the PVC chassis raw material (raw material A) is mixed (S110), and the mixed raw material A is transferred to the first hopper 210 (S120), and the raw material A and the PVC compound for coloring (raw material B) are respectively mixed into the first hopper 210 (S120). It is accommodated in the first hopper 210 and the second hopper 220 (S130).

The raw material B accommodated in the second hopper 220 is fed to the extruder 230 (S140).

The feeding step of step S140 may further include adjusting a feeding speed by referring to a screw type or diameter of the extruder and a particle size of the PVC compound for coloring stored in the second hopper.

The extruder 230 extrudes the raw material A of the first hopper 210 and the raw material B of the second hopper 220 (S150).

In the extrusion process of step S150, by using the dispersibility principle according to the difference in physical properties based on at least one of the difference in melting point between the raw material accommodated in the first hopper and the compound accommodated in the second hopper and the difference in shape of the constituent material, A pattern is formed on the chassis surface. The form of the constituent material indicates a difference in particle size between the PVC chassis raw material contained in the first hopper and the PVC compound for coloring contained in the second hopper.

The extruded PVC chassis is cooled and taken in (S160). The PVC chassis taken in this way is cut and packaged (S170).

According to the present invention described above, it is possible to form a pattern on the surface of the PVC chassis by using the principle of dispersibility between the raw material for manufacturing the PVC chassis and the raw material for pattern formation. Productivity can be increased by simplifying the process. In addition, by configuring the color and shape of the pattern formed on the surface of the PVC chassis in various ways, it is possible to secure the diversity of the PVC chassis products and broaden the range of choices of consumers.

On the other hand, the above-described method can be written as a program that can be executed on a computer, and can be implemented in a general-purpose digital computer that operates the program using a computer-readable medium. In addition, the structure of data used in the above method may be recorded on a computer readable medium through various means. Computer-readable media storing executable computer codes for performing various methods of the present invention include magnetic storage media (eg, ROM, floppy disk, hard disk, etc.), optical readable media (eg, CD-ROM, DVD) etc.).

Those skilled in the art related to the embodiments of the present invention will be able to understand that it may be implemented in a modified form without departing from the essential characteristics of the above description. Therefore, the disclosed methods should be considered from an illustrative rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the detailed description of the invention, and all differences within the equivalent scope should be construed as being included in the scope of the present invention.

Claims (11)

A first hopper accommodating a PVC chassis raw material;
a second hopper that accommodates a PVC compound for coloring and is spaced apart from the first hopper;
a feeding machine involved in feeding control of the coloring PVC compound accommodated in the second hopper;
a display panel provided on one side of the second hopper, detachable, and providing information about the first hopper and the second hopper; and
An extruder connected to the first hopper and the second hopper and extruding and processing the PVC chassis raw material accommodated in the first hopper and the PVC compound for coloring contained in the second hopper,
The second hopper is installed at a position higher than the height of the extruder,
The second hopper includes a cylindrical passage having an inclination with the ground to transfer the accommodated PVC compound for coloring to the extruder,
And an opening and closing portion for controlling transmission to the extruder at the bottom of the first hopper and the second hopper connected to the extruder,
The feeding machine,
Adjusting the feeding speed by referring to the screw type and diameter of the extruder and the particle size and fluidity difference of the coloring PVC compound accommodated in the second hopper,
In the control of the feeding speed, a set value is applied according to the screw type and diameter of the extruder, and the size and repetition rate of the pattern are determined according to the set value,
Regarding the control of the feeding speed, the feeding speed of the coloring PVC compound is adjusted in consideration of the fluidity difference between the PVC chassis raw material and the coloring PVC compound, but when the screw diameter of the extruder is 85 to 95 mm, the coloring PVC compound The feeding speed is set to 300 to 350 rpm, and when the screw diameter is 60 to 65 mm, the feeding speed of the coloring PVC compound is set to 100 to 150 rpm, but the particle size of the PVC chassis raw material in relation to the fluidity is 180 μm or less, , The particle size of the PVC compound for coloring includes being 4000 to 5000 μm,
the extruder,
Patterns are formed on the surface of the PVC chassis using the dispersibility principle according to the difference in physical properties based on the difference in melting point between the PVC chassis raw material accommodated in the first hopper and the PVC compound for coloring contained in the second hopper and the shape difference of the constituent materials, ,
The form of the constituent material,
It shows the particle size difference and shape of the PVC chassis raw material accommodated in the first hopper and the PVC compound for coloring contained in the second hopper,
When the extruder extrudes and processes the PVC chassis raw material contained in the first hopper and the PVC compound for coloring contained in the second hopper, the display panel includes the setting control information of the second hopper and the coloring material contained in the second hopper. Outputs PVC compound information, extrusion temperature and particle size information of the PVC chassis raw material and the coloring PVC compound, screw diameter information of the extruder, and setting control information of the feeding machine,
The extruder is set to different extrusion temperatures for each sector in relation to the melting speed difference between the PVC chassis raw material and the PVC compound for coloring according to the melting point, but the cylinder sector is 220 to 240 ° C, the head sector is 130 to 160 ° C, and the die sector is set to 170 to 200 ° C, and controls the extrusion temperature for each sector to realize a third color in which the respective unique colors of the PVC chassis raw material and the PVC compound for coloring are mixed, thereby controlling the PVC chassis raw material and the PVC compound for coloring. Including controlling the melting rate of
PVC chassis manufacturing equipment. delete delete delete delete In the method for manufacturing a PVC chassis,
Blending a PVC chassis raw material;
transferring the blended PVC chassis raw material;
receiving the PVC chassis raw material in a first hopper and accommodating a PVC compound for coloring in a second hopper disposed spaced apart from the first hopper;
Participating in feeding control of the coloring PVC compound by using a feeding machine;
Extruding and processing the PVC chassis raw material and the PVC compound for coloring through an extruder connected to the first hopper and the second hopper;
cooling and taking in the PVC chassis processed by extrusion; and
Including; cutting and packaging the pulled PV chassis;
Information on the first hopper and the second hopper is provided on one side of the second hopper and provided through a detachable display panel,
The second hopper is installed at a position higher than the height of the extruder, and a cylindrical passage having an inclination with the ground is included in the second hopper to transfer the coloring PVC compound to the extruder,
The lower end of the first hopper and the second hopper connected to the extruder includes an opening and closing portion for controlling transmission to the extruder,
The step of engaging in the feeding control using a feeding machine,
The feeding speed of the feeding machine is adjusted with reference to the screw type and diameter of the extruder and the particle size and fluidity difference of the coloring PVC compound,
In the control of the feeding speed, a set value is applied according to the screw type and diameter of the extruder, and the size and repetition rate of the pattern are determined according to the set value,
The feeding speed is controlled by referring to the screw type and diameter of the extruder and the particle size and fluidity difference of the coloring PVC compound, and the feeding speed of the compound is adjusted. If the screw diameter of the extruder is 85 to 95 mm, the coloring The feeding speed of the PVC compound for coloring is set to 300 to 350 rpm, and when the screw diameter is 60 to 65 mm, the feeding speed of the PVC compound for coloring is set to 100 to 150 rpm, but the particle size of the PVC chassis raw material in relation to the fluidity is 180 μm or less, and the particle size of the PVC compound for coloring includes being 4000 to 5000 μm,
The step of extruding and processing through the extruder,
Forming a pattern on the surface of the PVC chassis using a dispersibility principle based on a difference in physical properties based on a difference in melting point between the PVC chassis raw material and the coloring PVC compound and a difference in shape of constituent materials,
In the step of extruding and processing through the extruder,
The form of the constituent material indicates the difference in particle size and shape of the PVC chassis raw material and the PVC compound for coloring,
The step of extruding and processing through the extruder,
Setting control information of the second hopper, information on the PVC compound for coloring accommodated in the second hopper, information on the extrusion temperature and particle size of the PVC chassis raw material and the PVC compound for coloring, screw diameter information of the extruder, and information on the feeding machine Setting control information is output to the display panel,
In the step of extruding and processing through the extruder,
The extrusion temperature for each sector is set differently in relation to the melting speed difference between the PVC chassis raw material and the PVC compound for coloring according to the melting point, but the cylinder sector is 220 to 240 ° C, the head sector is 130 to 160 ° C, and the die sector is 170 to 170 ° C. Set at 200°C, the melting rate of the PVC chassis raw material and the PVC compound for coloring by controlling the extrusion temperature for each sector to realize a third color in which each unique color of the PVC chassis raw material and the PVC compound for coloring is mixed. Including that is controlled,
A method for manufacturing a PVC chassis. delete delete delete delete delete

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