• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A rotating cutter (4) cuts the granules from material extruded through perforations of a die member (3), a housing (9) which surrounds the cutter to form a granulating chamber having a generally upright axis, is provided with liquid supply means (8) to supply cooling liquid to the chamber top edge (17) so that the cooling liquid flows in a film over the chamber inner wall, to prevent the cut material from sticking to said inner wall and to cool the cut material. The liquid supply means may include a perforated pipe encircling the granulating chamber, or a weir (17) at the inner edge of an annular chamber (16). The position of housing 9 is adjustable by pneumatic cylinders 23, and coolant sensing means (20, 21) may act to switch of the extruder or the granulator. <IMAGE>
    公开号:SU837312A3
    申请号:SU792769158
    申请日:1979-05-30
    公开日:1981-06-07
    发明作者:Андерс Дитмар
    申请人:Херманн Бершторфф Машиненбаугмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of polymeric materials and can be used to create devices for granulation.
    A device for granulating a melt of synthetic material, comprising a blow head arranged vertically with vertically installed below the granulation chamber, and inside which is mounted the cutting head, the water supply unit for cooling water outlet pipe and mechanisms on and off device [13 ·
    A disadvantage of the known device is the presence of contact of cooling water with the end face of the blowing head, from where synthetic material is extruded through the holes in the disk into the granulation chamber.
    As a result of this, the so-called glass transition phenomena of a disk with holes appear, that is, the holes are clogged with cooled and hardened synthetic material, which reduces the performance of the device. thirty
    The purpose of the invention is to increase productivity and eliminate algomeration phenomena.
    This is achieved by the fact that the device for granulating a melt of synthetic material, comprising a vertically arranged blowing head with a granulation chamber vertically mounted below it, inside which a cutting head is mounted, a water supply unit for cooling, a water outlet pipe and a mechanism for turning on and off the device according to the invention , equipped with a means for forming a water film on the inner wall of the housing of the granulation chamber, communicating with the water supply unit for cooling.
    In this case, the means for forming a water film is made in the form of an annular pipe located on the upper edge of the granulation chamber body, having openings in its lower part.
    The means for forming a water film can be made in the form of a cylindrical shell located in a granulation chamber and treated in FIG. 2 - a device for the formation of captures in the form of a cylindrical extruder 1 s at the outlet of the water cavity with its inner wall, and the height of the shell is less than the height of the chamber.
    In addition, the device is equipped with elements for aligning the flow located in the water cavity, each of which is made in the form of a ring with rows of holes.
    The device is also equipped with a sensor for monitoring the absence of cooling water located at the upper edge of the chamber and connected to the device shutdown mechanism.
    The invention is illustrated by drawings, where in FIG. 1 shows a device with a means for forming a film made in the form of an annular tube on in with a ki tool made by a shell.
    The device contains a screw conveyor 2, which is vertically mounted blowing head 3.
    Under the blowing head 3, a granulation chamber 4 is vertically located, inside of which a cutting head is mounted, containing knives 5 located on the lower end of the blowing head 3 and mounted on a holder £ 6. The holder 6, in turn, is mounted on a shaft 7 connected to the engine 8 .. ,
    The device also includes a node for supplying 9 water for cooling and a pipe 10 for water drainage. A sensor 11 'for monitoring the absence of cooling water is located at the upper edge of the chamber 4 and is connected to the shutdown mechanism (not shown) of the device.
    The device is equipped with a means for forming a water film on the inner wall of the housing of the granulation chamber 4, connected to the node 9 of the water supply.
    In FIG. 1, this tool is made in the form of an annular pipe 12 with holes 13 in its lower part located on the upper edge of the granulation chamber body 4. In FIG. 2, this tool is made in the form of a cylindrical shell 14 located in the granulation chamber 4 and forming, with its inner wall 15, a water cavity 16, the height of the shell 14 being less than the height of the chamber 4.
    In the cavity 16 for water there are elements for aligning the flow, each of which is made in the form of a ring 17 with rows of holes.
    The device also includes a sensor 18 for detecting the level of cooling water in the chamber 4.
    The device operates as follows.
    From the extruder 1, synthetic material 7 is transported to the blowing head 3, from which it comes out in the form of a bar and is cut with knives 5 into granules.
    The trajectories of the movement of individual granules when moving them down in the granulation chamber do not intersect, and the overflowing coolant through the edge of the shell 14 or emerging from the annular pipe 12 forms a water film on the inner wall of the granulation chamber and quickly. transports granules, while there is no bonding them. The cooling water does not come into contact with the lower end of the blowing head, so that it does not cool, and this eliminates the possibility of glass transition of the holes of the blowing head, since the extruded synthetic material does not cool.
    The sensor 11 controls the output of the cooling water and, if its supply is interrupted by the shutdown mechanism, stops the device.
    The sensor .18 in the event of a blockage in the outlet pipe 10 responds to • an excess of the permissible water level in the chamber 4 and also gives a command to turn off the device.
    Thus, in the absence of cooling water, as well as when the branch pipe is blocked, the device stops working.
    权利要求:
    Claims (5)
    [1]
    (54) A DEVICE FOR GRANULATING A MELT FROM A SYNTHETIC MATERIAL with its inner wall of the floor fljiH of water, and the height of the shell is lower than the height of the chamber. In addition, the device is equipped with elements in the water cavity to equalize the flow, each of which is made in the form of a ring with a series of holes. The device is also equipped with a sensor for monitoring the absence of cooling water i located at the upper edge of the chamber and connected to the device disconnection mechanism. The invention is illustrated in the drawings, where in FIG. 1 shows a device with a means for forming a film, in the form of an annular tube in FIG. 2 shows a device with means for forming a lidding, made in the form of a cylindrical shell. The device contains an extruder 1 with a screw conveyor 2, at the exit of which a blow head 3 is vertically installed. Under the blow head 3 vertically, there is a granulation chamber 4 inside which a cutting head is mounted, which contains knives 5 placed on the bottom end of the blow head 3 on hold l§ b. The holder 6, in turn, is mounted on the shaft 7 connected to the engine 8.. The device also contains a water supply unit 9 for cooling and a branch pipe 10 for discharging water. At the upper edge of chamber 4, a sensor 11 for the absence of cooling water is located, which is connected to the switch off mechanism (not shown) of the device. The device is provided with means for forming a water film on the inner wall of the body of the granulation chamber 4 connected to the water supply unit 9. FIG. 1, this means is made in the form of a caliper tube 12 located on the upper edge of the body of the granulation chamber 4 with openings 13 in its part. FIG. 2, this means is made in the form of a cylindrical shell 14 located in the granulation chamber 4 and forming with its inner wall 15 a cavity 16 for water, the height of the shell 14 being less than the height of chamber 4. In the water cavity 16 there are elements for equalizing the flow, each of which is made in the form of a ring 17 with a series of holes. The device also contains a sensor 18 for fixing the level of cooling water in the chamber 4. The device operates as follows. Synthetic material is transported from the extruder 1, into the blow head 3, from which it comes out in the form of a bar and is cut into the granules with knives 5. When moving in the granulation chamber downward, the trajectories of movement of individual granules are not the Perece -: cavity, but the liquid flowing over the cooling liquid through the edge of the shell 14 or coming out of the annular tube 12 forms a water film on the inner wall of the granulation chamber and at the same time, they are glued together. Cooling water is not in contact with the bottom end of the blow head, so that it does not cool, and thus eliminates the possibility of glass transition of the holes of the blow head, as there is no cooling of the extruded synthetic material. The sensor 11 monitors the output of the cooling water and, if it is possible to interrupt its supply, it stops the device using the shutdown mechanism. Sensor 18 in case of blockage of the branch pipe 10 of the outlet, the vodka reacts to the excess of the tolerance level of water in chamber 4 and also gives a command to turn off the device. Thus, in the absence of cooling water, as well as when its pipe is blocked. A tap device prekrgitsaet work. Claim 1. A device for granulating a melt of synthetic material, including a vertically positioned blow head with a vertically installed granulation chamber inside which a cutting head, a supply unit, cooling water, a device for discharging water and the mechanism for switching on and off the device are mounted, characterized in that, in order to increase productivity and eliminate agglomeration effects, the device is provided with means for forming a water film on the inner wall the body of the granulation chamber, together with the water supply unit for cooling.
    [2]
    2. The device according to claim 1, wherein the means for forming a water film is made in the form of an annular tube located on the upper edge of the body of the granulation chamber, having openings in its lower part.
    [3]
    3. The device according to claim 1, characterized in that the means for forming a water film is made in the form of a cylindrical shell located in the granulation chamber and forming a cavity for water with its inner wall, the shell height being less than the chamber height.
    [4]
    4. The device according to claim 3, characterized in that it is provided with elements in the water cavity for leveling the flow, each of which is made in the form of a ring with rows of holes.
    [5]
    5. Device on PP. 1-4, differing from the fact that it
    equipped with a sensor for monitoring the absence of cooling water, located at the upper edge of the chamber and connected to the device disconnection mechanism.
    Sources of infrashma taken into account during the examination
    1. Patent of Germany 1679803, cl. 39a1 / 02, publ. 1972 (prototype;.
    类似技术:
    公开号 | 公开日 | 专利标题
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    US3341892A|1967-09-19|Pelletizing apparatus
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    JPS5715910A|1982-01-27|Molding method for pellet and screw and die plate used for said method
    SU1611434A1|1990-12-07|Apparatus for granulating
    SU1710113A1|1992-02-07|Apparatus for pelletizing molten materials
    JPS62294528A|1987-12-22|Melt extrusion of polycarbonate
    JPS59118423A|1984-07-09|Chuck device for taking out spool in resin-molding machine
    JPH0716953B2|1995-03-01|Drainer for plastic strands
    同族专利:
    公开号 | 公开日
    DE2825287A1|1979-12-13|
    FR2427892A1|1980-01-04|
    NL7904483A|1979-12-11|
    GB2022504B|1982-08-04|
    IT7921745V0|1979-06-06|
    CA1120677A|1982-03-30|
    JPS54161665A|1979-12-21|
    GB2022504A|1979-12-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2501650C2|2008-12-16|2013-12-20|Эрема Энджиниринг Рисайклинг Машинен Унд Анлаген Гезелльшафт М.Б.Х.|Pelletiser of hot lumps|DE1221783B|1959-10-16|1966-07-28|Buss Ag|Collecting housing for granulating machines|
    NL6500527A|1964-02-01|1965-08-02|
    LU48129A1|1964-03-24|1965-05-05|
    JPS497583B1|1964-06-18|1974-02-21|
    ES402439A1|1971-04-02|1975-04-01|Welding Engineers|Face cutting apparatus for forming pellets|JPH0246130B2|1985-02-13|1990-10-15|Japan Steel Works Ltd|
    JPS62199408A|1986-02-27|1987-09-03|Kasamatsu Kako Kenkyusho:Kk|Method and apparatus for preparing synthetic resin pellet|
    JPH0264011U|1988-11-01|1990-05-14|
    WO1992018311A1|1991-04-10|1992-10-29|Masao Moriyama|Apparatus for manufacturing plastic pellets|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782825287|DE2825287A1|1978-06-09|1978-06-09|DEVICE FOR GRANULATING PLASTIC MELT|
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