KR20170071166A - Screen changer for synthetic resine extruder - Google Patents
Screen changer for synthetic resine extruder Download PDFInfo
- Publication number
- KR20170071166A KR20170071166A KR1020150179167A KR20150179167A KR20170071166A KR 20170071166 A KR20170071166 A KR 20170071166A KR 1020150179167 A KR1020150179167 A KR 1020150179167A KR 20150179167 A KR20150179167 A KR 20150179167A KR 20170071166 A KR20170071166 A KR 20170071166A
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- KR
- South Korea
- Prior art keywords
- screen
- foreign matter
- sliding plate
- die housing
- replacement
- Prior art date
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- B29C47/0818—
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- B29C47/0828—
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- B29C47/0877—
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- B29C47/0884—
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a screen replacing apparatus for a synthetic resin extruder for improving workability and productivity by allowing a screen to be changed without interruption of a resin extrusion operation. To this end, a resin inlet is formed on the upper side, A cylindrical die housing having an outlet formed therein; A sliding plate mounted on the discharge side of the extrusion of the die housing so as to be slidable in the left and right direction and having a size two times or more larger than the inner surface area of the mounting position of the die housing and partly projecting out of the mounting position of the die housing; A plurality of extrusion holes formed on the sliding plate and having a size smaller than an inner surface area of the sliding plate mounting position of the die housing; The slide plate has a stroke corresponding to an interval between two replacement screens mounted on the sliding plate. The sliding plate is connected to one end of the sliding plate, and the sliding plate slides in the left and right directions of the sliding housing, And a screen replacement cylinder in which one of the two replacement screens is operated to come out of the die housing.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen replacing apparatus for a synthetic resin extruder, and more particularly, to a screen changing apparatus capable of changing a screen without interrupting the operation of extruding a synthetic resin, thereby improving workability and productivity.
The amount of waste synthetic resin that is generated annually by industrial development is increasing rapidly, and environmental pollution problem is increasing.
These waste synthetic resins have difficulty in stabilizing the landfill prematurely due to their decomposition resistance, and some thermal energy can be utilized in the treatment by incineration, but they cause a lot of economic losses and also cause toxic gases such as dioxins, I have to.
Therefore, the recycling of waste synthetic resin plays an important role in industrial development because it recycles resources in Korea, which not only solves the environmental pollution problem of the country but also lacks natural resources. Therefore, it is urgently required to develop recycling technology that can solve this problem. , And a variety of support systems are being operated for recycling waste synthetic resin and waste synthetic resin.
Hereinafter, a method for regenerating waste plastic vinyl which is currently in use will be briefly described.
The used waste synthetic resin is collected and sent to a recycling plant, which is then put into a crusher and crushed.
Thereafter, the foreign matter such as soil buried in the pulverized waste synthetic resin is removed. In general, the foreign substance is removed by using the cleaning device.
Next, the washed waste synthetic resin is dewatered or dried, and then put into an extruder to form a resin material, whereby various recycled resin products can be manufactured.
Recycled synthetic resin extrusion apparatuses are disclosed in various forms, such as a registrant's draft 20-232916 and a registrant's draft 20-261979.
However, in the case of the synthetic resin extrusion apparatus according to the prior art, the synthetic resin is extruded through the dies in a state in which various foreign substances contained in the molten resin are not properly filtered, so that the regenerated synthetic resin raw materials contain foreign substances, There is a disadvantage that the possibility of inclusion of foreign substances becomes greater when recycling waste synthetic resin.
For this purpose, attempts have been made to remove foreign substances contained in the molten resin by applying a screen to the synthetic resin extrusion apparatus. However, when removing the clogged foreign substances or replacing the screen, the operation of the synthetic resin extrusion operation is stopped, Sex and productivity were inevitable.
DISCLOSURE OF THE INVENTION An object of the present invention is to provide a screen replacement apparatus for a synthetic resin extruder which is capable of replacing a screen without interrupting a synthetic resin extrusion operation to improve workability and productivity, .
In order to accomplish the above object, according to a preferred embodiment of the present invention, there is provided a screen replacing apparatus for a synthetic resin extruder,
A cylindrical die housing having a resin inlet formed at an upper side thereof and an outlet for an extrudate at a lower portion thereof;
A sliding plate mounted on the discharge side of the extrusion of the die housing so as to be slidable in the left and right direction and having a size two times or more larger than the inner surface area of the mounting position of the die housing and partly projecting out of the mounting position of the die housing;
A plurality of extrusion holes formed on the sliding plate and having a size smaller than an inner surface area of the sliding plate mounting position of the die housing; And
The sliding plate has a stroke corresponding to a distance between two replacement screens mounted on the sliding plate. The sliding plate is connected to one end of the sliding plate, and pushes or pulls the sliding plate to slide in the left- And a screen changing means for operating any one of the plurality of replacement screens to come out of the die housing.
Wherein the replacement screen has a rectangular shape whose length in the left-right direction is longer than the length in the forward-backward direction,
Wherein the two replacement screens are mounted in close contact with the sliding plate,
And the screen replacement means is formed of a cylinder.
A disk-shaped screen mounted in the die housing in a state where a plurality of extrusion holes are formed in the die housing to filter foreign substances while passing the molten resin injected through the resin inlet;
A foreign matter remover attached to a rotating shaft at the center of the upper surface of the disk type screen to sweep foreign matters filtered out of the molten resin by the disk type screen;
A driving motor connected to the lower end of the rotating shaft to transmit power to the foreign object remover; And
A foreign matter outlet formed at a position of the dice housing to communicate with the foreign matter remover and discharging foreign matter swept through the foreign matter remover; and an opening / closing device which is provided in the foreign matter outlet and is automatically opened / closed by pressure generated by rotation of the foreign matter remover And a foreign matter discharging unit as a valve.
The foreign matter removing device is formed to be rounded from the center to the outside and symmetrically formed around the center thereof so as to form an overall waveform so that the foreign matter is pushed outward along the rounded surface by the centrifugal force due to the rotation of the foreign matter removing device, And is discharged through a discharge port.
Wherein the disk-shaped screen is composed of two first screens and two second screens, and is disposed on the upper and lower sides of the die housing, wherein the size of the extrusion holes of the second screen is smaller than the size of the extrusion holes of the first screen, The size of the extrusion hole of the replacement screen is smaller than the size of the extrusion hole of the two screens,
The foreign matter remover includes a first foreign matter remover coupled to the first screen and a second foreign matter remover coupled to the second screen,
And the foreign matter outlet port is formed to communicate with the first foreign matter remover and the second foreign matter remover, respectively.
As described above, the screen exchange apparatus for a synthetic resin extruder according to a preferred embodiment of the present invention can move while being engaged with each other at the mounting position of the die housing when two screens constituting the replacement cylinder are replaced, Since the replacement cylinder located outside the die housing can be replaced after the movement, the continuous process can be performed without interruption of the synthetic resin extrusion operation, which is advantageous in improving workability and productivity.
In addition, when the molten resin passes through the extrusion hole of the disk-shaped screen, the foreign substances contained in the molten resin are blocked by the extrusion hole and can not be discharged downward. The molten resin is swept away by the rounded foreign matter remover rotated on the upper surface of the disk- It is possible to extrude a more pure synthetic resin from which foreign substances have been removed. In the case where the disk-shaped screen is composed of the first screen and the second screen and is disposed above and below the dice housing, Since the size of the extrusion hole of the second screen is smaller than that of the second screen, the foreign matter can be more completely removed.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a screen replacing apparatus for a synthetic resin extruder according to a preferred embodiment of the present invention. FIG.
2 is a process flow diagram of a screen replacement process for a synthetic resin extruder according to a preferred embodiment of the present invention;
3 is an exemplary view of a die for a synthetic resin extruder to which a preferred embodiment of the present invention is applied;
Fig. 4 is an exemplary view of a disk-shaped screen applied to the dice of Fig. 2; Fig.
Fig. 5 is a configuration diagram of a foreign matter remover applied to the dice of Fig. 2; Fig.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dice for a synthetic resin extruder according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of a screen replacing apparatus for a synthetic resin extruder according to a preferred embodiment of the present invention, FIG. 2 is a process diagram for replacing a screen changing apparatus for a synthetic resin extruder according to a preferred embodiment of the present invention, Fig. 4 is an exemplary view of a disk-shaped screen applied to the dice of Fig. 2, and Fig. 5 is a diagram illustrating a foreign matter remover applied to the dice of Fig. 2. Fig.
The screen exchange apparatus for a synthetic resin extruder according to the preferred embodiment of the present invention is configured such that the
To this end, a
The
The
The
At this time, the
A disk-
A foreign
At this time, the
The disk-
The
In the screen exchanging apparatus for a synthetic resin extruder according to the preferred embodiment of the present invention, the molten resin introduced into the
When the
At this time, each of the two
Accordingly, in the course of continuous extrusion of the synthetic resin, the
On the other hand, the molten resin injected into the
At this time, since the
When the disk-shaped
The molten resin that has exited the
Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.
10: Dice housing 11: resin inlet
12: extrusion outlet 20: disk-shaped screen
22: first screen 23, 25, 61: extrusion hole
24: second screen 30: foreign matter remover
32: first foreign matter remover 34: second foreign matter remover
40: drive motor 41:
50: foreign matter discharging unit 51: foreign matter discharging port
52: opening / closing valve 60: replacement screen
62: sliding plate 63: screen replacement cylinder
Claims (5)
A sliding plate mounted on the discharge side of the extrusion of the die housing so as to be slidable in the left and right direction and having a size two times or more larger than the inner surface area of the mounting position of the die housing and partly projecting out of the mounting position of the die housing;
A plurality of extrusion holes formed on the sliding plate and having a size smaller than an inner surface area of the sliding plate mounting position of the die housing; And
The sliding plate has a stroke corresponding to a distance between two replacement screens mounted on the sliding plate. The sliding plate is connected to one end of the sliding plate, and pushes or pulls the sliding plate to slide in the left- Screen changing means for moving one of the plurality of replacement screens out of the die housing.
Wherein the replacement screen has a rectangular shape whose length in the left-right direction is longer than the length in the forward-backward direction,
The two replacement screens being mounted in close contact with the sliding plate;
Wherein the screen replacement means comprises a cylinder.
A disk-shaped screen mounted in the die housing in a state where a plurality of extrusion holes are formed in the die housing to filter foreign substances while passing the molten resin injected through the resin inlet;
A foreign matter remover attached to a rotating shaft at the center of the upper surface of the disk type screen to sweep foreign matters filtered out of the molten resin by the disk type screen;
A driving motor connected to the lower end of the rotating shaft to transmit power to the foreign object remover; And
A foreign matter outlet formed at a position of the dice housing to communicate with the foreign matter remover and discharging foreign matter swept through the foreign matter remover; and an opening / closing device which is provided in the foreign matter outlet and is automatically opened / closed by pressure generated by rotation of the foreign matter remover And a foreign substance discharging unit as a valve.
The foreign matter removing device is formed to be rounded from the center to the outside and symmetrically formed around the center thereof so as to form an overall waveform so that the foreign matter is pushed outward along the rounded surface by the centrifugal force due to the rotation of the foreign matter removing device, And the outlet port of the synthetic resin extruder.
Wherein the disk-shaped screen is composed of two first screens and two second screens, and is disposed on the upper and lower sides of the die housing, wherein the size of the extrusion holes of the second screen is smaller than the size of the extrusion holes of the first screen, The size of the extrusion hole of the replacement screen is smaller than the size of the extrusion hole of the two screens,
The foreign matter remover includes a first foreign matter remover coupled to the first screen and a second foreign matter remover coupled to the second screen,
Wherein the foreign matter discharge port is formed to communicate with the first foreign matter remover and the second foreign matter remover, respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150179167A KR101746754B1 (en) | 2015-12-15 | 2015-12-15 | Screen changer for synthetic resine extruder |
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Application Number | Priority Date | Filing Date | Title |
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KR1020150179167A KR101746754B1 (en) | 2015-12-15 | 2015-12-15 | Screen changer for synthetic resine extruder |
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KR20170071166A true KR20170071166A (en) | 2017-06-23 |
KR101746754B1 KR101746754B1 (en) | 2017-07-10 |
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KR102141688B1 (en) * | 2020-04-13 | 2020-08-05 | 동민산업 협동조합 | Slide type filter screen changer for filtering foreign of substancesynthetic resins |
KR102236659B1 (en) * | 2020-10-30 | 2021-04-06 | 주식회사 성원리사이클 | A dice line |
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KR200184038Y1 (en) * | 1999-12-24 | 2000-06-01 | 주식회사삼영기계공업 | Impurities exclusion equipment of extruding machine |
KR101548097B1 (en) * | 2015-02-04 | 2015-08-27 | 이상식 | Impurities exclusion equipment of extruding machine for recycling plastic waste |
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