WO2020216619A1 - Extrusionszylinder mit kühl- bzw. heizmittelführung - Google Patents
Extrusionszylinder mit kühl- bzw. heizmittelführung Download PDFInfo
- Publication number
- WO2020216619A1 WO2020216619A1 PCT/EP2020/059989 EP2020059989W WO2020216619A1 WO 2020216619 A1 WO2020216619 A1 WO 2020216619A1 EP 2020059989 W EP2020059989 W EP 2020059989W WO 2020216619 A1 WO2020216619 A1 WO 2020216619A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cylinder body
- cylinder
- extrusion
- recess
- extrusion cylinder
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/256—Exchangeable extruder parts
- B29C48/2565—Barrel parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/6803—Materials, coating or lining therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/241—Drive means therefor; screw bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
Definitions
- the present invention relates to extrusion cylinders which can be effectively temperature-controlled and to manufacturing processes for such extrusion cylinders.
- extrusion cylinders which can be effectively temperature-controlled and to manufacturing processes for such extrusion cylinders.
- it is often necessary to control the temperature of the extrusion cylinders used for guiding and mixing the extrudate, in which the extruder screw circulates the extrudate.
- it is advantageous to first preheat the extrusion cylinder in order to bring the extrudate into a plastically deformable state more quickly.
- some of the heat generated during the guidance / mixing of the extrudate must be removed again.
- a cooling or heating means such as e.g.
- Another problem is that a distribution of different temperature control zones, that is to say the setting of different temperatures along the extrusion cylinder, has to be based on the length of the individual cylinder segments. Free creation and positioning of temperature zones is not possible.
- the temperature control systems currently used for extrusion cylinders therefore lead to a lack of flexibility with regard to the temperature control of the cylinder and with regard to the arrangement of pins in the cylinder that are advantageous for mixing the extrudate.
- the manufacture of an extrusion cylinder from several segments provided with deep-hole bores is prone to errors and is costly.
- the operation of such temperature control systems is also due to the high Pressure loss in the bores and the non-directional flow guidance costly.
- An extrusion cylinder can have a cylinder body for receiving an extruder screw, which is characterized in that an outer wall of the cylinder body has at least one recess which can be covered and which, when covered, is suitable for guiding a cooling or heating means to control the temperature of the cylinder body .
- depressions are thus produced in the outer wall of the cylinder body, for example by milling one or more continuous grooves in the outer wall of the cylinder body.
- These depressions must be dimensioned in such a way that a cooling or heating medium that can be used to control the temperature of the cylinder body, such as water or a similar heat-exchanging liquid, can flow through the depression without excessive pressure loss when it is covered.
- the recess can have an approximately rectangular cross-section with a width and / or a height of 0.5 to 6 cm, e.g. 1 cm, 3 cm or 5 cm. However, the cross section can also have any other shape with a similar area.
- the lines for the temperature control medium can therefore be produced in a simple manner on the outside of the cylinder body. This essentially eliminates all restrictions for the geometry of the cooling path that are given by the use of boreholes. It is particular It is possible to provide much longer cylinder segments with indentations from the outside than is possible with holes. This makes it possible to manufacture the entire extrusion cylinder from one piece or from just a few segments. This then allows the number of pins provided for mixing / plasticizing to be increased, thereby increasing the quality of the extrudate.
- the course of the lines can essentially be freely determined. So the depressions can e.g. spiral around the cylinder This makes it possible to create clearly defined flow paths for the coolant or heating medium, in which only a slight pressure drop occurs. This makes it easier to set the cylinder body to a certain temperature.
- the extrusion cylinder can also have cover elements which are connected to the outer wall of the cylinder body in such a way that they cover the at least one recess. This allows the cooling or heating means to be passed through the depression.
- the covering is preferably done by welding sheet metal onto the side of the recess that is open at the top.
- the cylinder body provided with the depressions can, however, also be pushed into a sleeve, for example a sheet metal sleeve, which tightly seals off all depressions, for example due to a press fit. Inlets and outlets for the coolant or heating medium can then be opened in the sleeve.
- the at least one depression can have straight segments that run parallel to a longitudinal axis of the cylinder body and curved segments that establish a connection between two adjacent ends of exactly two straight segments.
- the depression runs so to speak "in serpentine lines" around the cylinder body. Starting from an inlet point for the cooling or heating medium, the depression initially runs in the axial direction. At the end of this straight segment, there is a curved segment that guides the depression in the circumferential direction of the cylinder body in such a way that no pressure losses occur.
- the radius of the curved segments can be 1 to 6 cm, for example 2 cm, 3 cm, 4 cm or 5 cm.
- the straight segments can extend from at least one edge region of the cylinder body and some of the curved segments can be arranged in the edge region of the cylinder body. This allows e.g. feed the coolant or heating medium from the edge of the cylinder body.
- the width of the edge area from the end of the cylinder body can e.g. one thirtieth, one twentieth, one tenth or one fifth of the total length of the cylinder body.
- the extrusion cylinder can furthermore have at least one connection flange which is applied to the edge region of the cylinder body by means of a press fit in such a way that it covers at least the curved segments that are located in the edge region.
- the connection flange itself can therefore serve as a cover element. This can limit the material consumption.
- the connection flange can be both a flange for connecting several cylinder body segments and a flange for connecting to an inlet or outlet of the extrudate in the extrusion cylinder.
- the extrusion cylinder can be used in conventionally used as a segment of a longer cylinder, so also as a single extrusion cylinder. The decision about the use or the length of the cylinder is no longer restricted by the technical conditions, but only by the needs of the operator of the extrusion system that contains the cylinder.
- connection flange can have lines which make it possible to introduce cooling or heating means into and out of the recess. In this way, the supply and discharge of cooling and heating medium can be ensured in a simple manner without the need for additional components.
- the straight segments can extend from the edge region of the cylinder body by a predetermined length which is smaller than the length of the cylinder body.
- the straight segments can be only three quarters, two thirds, half, one third, or one quarter of the total length of the cylinder body.
- the corresponding depression is then suitable for temperature control of this length range of the cylinder body. In this way, a flexible temperature setting of the cylinder body can be achieved.
- the straight segments cannot be attached to the edge areas of the
- the depression runs e.g. only in the middle of the cylinder body.
- the depression can also e.g. one sixth, quarter or third of the total length of the cylinder body from one or both ends of the cylinder body. This allows a central part of the cylinder body to be temperature controlled separately. This also enables a flexible
- connection points for the introduction and discharge of cooling or heating medium into the recess can be arranged on the cylinder body.
- the supply and discharge of cooling or heating medium does not have to take place via the edge areas of the cylinder body, but can in principle be carried out anywhere on the cylinder body. It is also possible, for example, as a connection point To use a hole in a flange attached to the end of the cylinder body and to attach another connection point of the same temperature control medium channel to the cylinder body. This also allows a more flexible temperature setting.
- the outer wall of the cylinder body can have a plurality of recesses which are not connected to one another and which in the covered state each define a separate flow path for cooling or heating means. This makes it possible to provide different, non-communicating temperature control circuits that can set the cylinder body to different temperatures in their area. This also enables a more flexible temperature setting.
- the cylinder body can have a plurality of radial boreholes which are suitable for receiving pins or screws.
- the drill holes can be arranged at different locations than the at least one depression.
- An extrusion cylinder that can be easily tempered can in this way also be fitted with pins, screws, bolts or the like, which protrude into the passage area for the extrudate and thus promote the plasticization and mixing of the extrudate.
- the boreholes provided for this purpose can be distributed over the entire surface of the extrusion cylinder, so that a uniform effect on the extrudate is made possible. If the drill holes do not align with the depressions, i. If the channels for the coolant or heating medium overlap, the pins or screws recessed in them can be exchanged easily without having to interrupt the temperature control circuit.
- An extrusion device can have an extrusion cylinder, as has been described above, the at least one recess of which is covered.
- the extrusion device can have cooling or heating means, which in the at least a covered recess runs.
- the extrusion device can each have a temperature control device for each depression which is suitable for controlling the temperature of the cooling or heating medium running in the respective depression.
- An extrusion using an extrusion cylinder that can be adjusted to different temperature zones is therefore possible.
- a production method for an extrusion cylinder as described above can include: producing the at least one recess in an outer wall of the cylinder body, for example by milling. The production method can further include: covering the at least one recess with a cover element, for example with sheet metal. This enables the extrusion cylinder to be easily manufactured using standard processes.
- Fig. 3 is a schematic view of another
- Extrusion cylinder 4A and 4B different views of further extrusion cylinders; 5 shows a schematic view of a further extrusion cylinder;
- 6A and 6B are schematic views of a further extrusion cylinder
- Fig. 8 is a schematic flow chart for a
- FIG. 1A to 1C show various schematic views of an extrusion cylinder 100.
- FIG. 1A shows an oblique view
- FIG. 1B shows a cross section through the extrusion cylinder 100
- FIG. 1C shows a side view of the extrusion cylinder 100.
- the extrusion cylinder 100 consists essentially of a cylinder body 110, preferably made of metal, which is designed as a hollow cylinder.
- the cylinder body 110 has an outer wall 115 which corresponds to the outer jacket surface of the hollow cylinder.
- the dimensions of the extrusion cylinder 100 correspond to the dimensions normally used for extrusion and are essentially dependent on the substance that is to be extruded.
- Typical dimensions for the total length of an extrusion cylinder for rubber extrusion are approximately in the range from 1 to 5 meters and can therefore be, for example, 1 m, 2 m, 3 m, 4 m or 5 m. But longer extrusion cylinders are also conceivable.
- the extrusion cylinder 100 can have a length which corresponds to the total length required for the extrusion.
- the extrusion cylinder 100 can, however, also be a segment of the overall extrusion cylinder, which is then composed of several extrusion cylinders. One or more of these cylinders can correspond to the extrusion cylinder 100 or the modifications of this cylinder discussed below.
- Typical dimensions for the outer radius of the cylinder body 110 for rubber extrusion are in the range from 20 to 50 cm, e.g. 25 cm, 30 cm, 35 cm, 40 cm or 45 cm. Possible inner radii are in the range from 4.5 cm to 30 cm, e.g. 5 cm, 10 cm, 15 cm, 20 cm or 25 cm.
- the wall thickness of the cylinder body 110 is therefore in the range from 3 cm to 10 cm, e.g. 5 cm or 7 cm.
- a length to diameter ratio can e.g. be between 10: 1 and 3: 1, e.g. at approx. 4: 1, 6: 1, 7: 1 or 8: 1.
- the cylinder body 110 has at least one recess 120 in its outer wall 115. As shown in FIGS. 1 A to 1 C, this can be a single, continuous depression 120 which runs around the entire cylinder body 110.
- the recess 120 is designed, in particular with regard to its width and depth, in such a way that a cooling or heating medium, hereinafter referred to as temperature control, such as water or the like, can flow through the recess 120 unhindered, ie without excessive pressure loss.
- temperature control such as water or the like
- the indentation in the direction along the outer wall 115 of the cylinder body 110 is intended to define a flow path that is as free of branching as possible or that can be easily controlled or regulated by the flow parameters of the temperature control medium - and thus a heat exchange with the cylinder body 110, for example by the Position of a valve or the delivery rate of a pump.
- the recess 120 can have a depth for this purpose which corresponds to more than half the wall thickness of the cylinder body 110.
- the width of the depression can roughly correspond to its depth, but it can also correspond to it differ. For example, with a wall thickness of about 5 cm, the width of the recess 120 can be in the range from about 2 cm to 4 cm, for example 3 cm.
- the depth of the recess 120 is then likewise in the range from 2 cm to 4 cm, for example likewise 3 cm or 3.5 cm.
- the dimensions mentioned for the recess 120 can either remain the same or be proportionally adapted.
- the cross-sectional shape of the depression 120 shown in FIG. 1B it can also have any other cross-section that is easy to produce, such as a triangular shape or the shape of a part of a circle, for example a claw shape.
- the recess 120 can be composed of straight segments 122 and curved segments 124.
- the straight segments 122 run axially along the outer wall 115 of the cylinder body 110. They can, as shown, extend from an edge region 112 of the cylinder body 110, e.g. up to the opposite edge area.
- the curved segments 124 are arranged in edge regions 112. These respectively connect adjacent ends of exactly two straight segments 122 to one another. Since the curved segments 124 are arranged alternately in one or the other edge region 112, the recess 120 has a branch-free course. That is to say, a temperature control means can be guided in a clearly defined manner from the beginning of the depression 120 to its end.
- the recess 120 is also formed in the edge regions 112 of the cylinder body 110 without abrupt transitions or edges. As a result, the flow resistance at the transition between two straight segments 122 remains low.
- the curved segments 124 used for this purpose can be designed as circular arcs.
- the radii of the curved segments 124 are such chosen that the flow resistance is minimized.
- the radii can be in the range from 1 cm to 10 cm, depending on the size of the cylinder body. For example, with an outside diameter of about 25 cm, radii of, for example, 1 cm, 1.5 cm or 2 cm can be used, while with an outside diameter of about 40 cm, radii of 3 cm, 5 cm or 7 cm are possible.
- the course of the depression 120 shown in FIGS. 1 A to 1 C is to be regarded here as purely exemplary.
- any shape of the recess 120 is conceivable, e.g. a spiral-shaped orbit with constant or varying spiral pitch.
- the only decisive factor for the shape or the course of the recess is that it enables simple control or regulation of the temperature control of the cylinder body 110 and that pressure losses of a
- Tempering medium flow are kept as low as possible. This allows the cylinder body 110, and thus the extrusion cylinder 100, to be temperature-controlled in a simple manner without excessive effort.
- the recess 120 can be made in the outer wall 115 of the cylinder body 110 in any suitable manner.
- the recess 120 is preferably milled into the cylinder body 110. This allows a particularly simple one
- the recess 120 can also be made differently, e.g. by means of an etching process, by grinding, by a cast sheet metal including the depressions or the like.
- Extrusion cylinder 100 provides the basic structure for channels for guiding temperature control means.
- cover elements 130 are connected to the outer wall 115 of the cylinder body 110, through which the recess 120 is tightly closed. All of the cover elements 130 together only leave free inlets and outlets that are suitable for introducing the temperature control medium into the recess 120.
- FIGS. 2A and 2B in particular parts of the recess which are not arranged within the edge regions 112 of the cylinder body 110 can be closed by cover elements 130 shaped in the form of the recess 120.
- these segments of the recess 120 can be closed by correspondingly shaped, for example punched, metal sheets which are welded to the cylinder body 110 at the edges of the recess 120.
- cover elements 130 are also conceivable, for example plastic covers.
- fasten the cover elements 130 it is also possible to fasten the cover elements 130 differently, for example by screwing, gluing or a combination thereof.
- sealing means can be provided between cover elements 130 and the cylinder body 110 in order to create tight channels for the temperature control means.
- the segments of the recess which in
- Edge areas 1 12 of the cylinder body 1 10 are arranged, are covered by means of connecting flanges 140, which e.g. be connected to the cylinder body 110 by means of a press fit.
- the segments are tightly closed in the edge areas 112 by the press fit. If, in addition, the cover elements 130 in the central region of the cylinder body 110 up to the
- connection flanges 140 can be designed in such a way that they enable a combination of several extrusion cylinders 100 to form an overall cylinder. They can, however, also represent the connecting elements which serve to connect the extrusion cylinder 100 to the extrusion feed and the discharge of the extrusion device in which the extrusion cylinder 100 is used.
- Feeds and discharges can be attached at any point on the cylinder body 110 or through the connection flanges 140.
- a part of the recess 120 must remain unlocked for this, or the cover element 130 must be removed again or drilled open at this point. This means a certain effort, but allows easy and free positioning of feed points.
- these In the case of supply via the connection flanges 140, these must have corresponding bores which, during the press fit, come to lie over the desired free areas of the recess 120 in the edge areas 112. If corresponding connection flanges 140 are available, the temperature control medium supply can be generated without any further work step. Instead of the connection flanges 140 shown in FIG.
- cover elements 130 such as are used in the central area of the cylinder body 110, can also be used in the edge regions 112 of the cylinder body 110 to close the recess 120. The closure then takes place in a uniform manner and is independent of the use of connection flanges 140.
- a cover element 130 can also be used that surrounds the entire cylinder body 110.
- a round sheet metal or pipe can be pushed over the cylinder body 110 by means of a press fit, so that it rests on the cylinder body 110 so tightly that the area of the recess 120 located under the cover element 130 is tightly closed is.
- the cover element 130 can leave the edge regions 1 12 of the cylinder body 1 10 free. However, these can also be covered.
- FIGS. 5 to 7 variants of the extrusion cylinder 100 are shown in which a plurality of depressions 120 are present.
- the examples shown each have three non-communicating depressions 120.
- any number of depressions 120 is possible.
- the depressions 120 surround a respective area of the cylinder body 110 like a sleeve. So they surround a section of the cylinder body 110 with a length that is smaller than the total length of the cylinder body 110, in the circumferential direction of the cylinder body 110 completely.
- different temperature control circuits can be defined.
- the extrusion cylinder 100 can be divided into different temperature zones, if this should be necessary for optimizing the extrusion process.
- depressions 120 and thus temperature zones can be generated which are not located in the edge regions 112 of the cylinder body 110. It goes without saying that such a division into different temperature zones can also take place in the circumferential direction. A plurality of depressions 120 is then necessary in order to run around the cylinder body 110 in the circumferential direction.
- a separate temperature control unit can then be provided for regulating the temperature of each zone of the cylinder body 110 through which a depression 120 passes.
- This enables the temperature along the extrusion cylinder to be set completely freely with a corresponding selection of the course of the depressions 120, as a result of which the quality of the extrudate can be improved.
- the extrusion cylinder 100 can have a plurality of connection points 150 via which the temperature control medium can be supplied and removed. These connection points 150 are on the cylinder body 110 on Positioned at the beginning and at the end of a respective recess 120. The remaining areas of the depressions 120 are closed by means of cover elements 130.
- connection points 150 can simply be applied to areas of the depression that remain free, for example welded, screwed or glued.
- the cover elements 130 are opened at the desired locations and the connection points 150 are then applied.
- the extrusion cylinder 100 can have a plurality of boreholes 160 which completely penetrate the hollow cylinder, ie which establish a connection between the interior 1 18 and the exterior of the cylinder body 110.
- Pins, screws, bolts or the like can be inserted into boreholes 160 of this type, which protrude into the interior 1 18 and, as additional friction points, improve the plasticization and mixing of the extrudate there during operation. This takes place in a more effective manner with a distribution of the boreholes 160 that is as uniform as possible.
- the drill holes 160 Due to the free distributability of the depressions 120, which results from the simple method of making these depressions 120, for example by milling, the drill holes 160 can also be distributed evenly over the cylinder body 110.
- extrusion cylinders 100 can also be manufactured which can be used as a total extrusion cylinder. This reduces the number the connecting flanges arranged along the length of the cylinder section. Since no boreholes 160 can be arranged in the area of these flanges, the number of boreholes 160 and thus the number of pins promoting the plasticization and mixing of the extrudate can be increased compared to conventional extrusion cylinders by using the extrusion cylinders 100 described above. This improves the quality of the extrudate.
- the drill holes 160 are preferably not formed in areas in which the depression 120 extends. However, it is also possible for depressions 120 and drill holes 160 to overlap. If the pins inserted into the drill holes 160 are appropriately sealed against the temperature control medium, this does not pose a problem in principle. The drill holes 160 can therefore in principle be distributed completely freely over the cylinder body 110.
- FIG. 8 shows a schematic flow diagram for a setting method for one of the extrusion cylinders described above.
- a recess is made in the outer wall of an extrusion cylinder suitable for extrusion, in particular of rubber, which, when covered, is suitable for guiding temperature control means. This is preferably done by milling the recess in the jacket of a flea cylinder forming the extrusion cylinder.
- the recess can then be covered with cover elements, preferably by welding or pressing on a metal sheet.
- temperature control medium channels for controlling the temperature of the extrusion cylinder can be introduced into the extrusion cylinder in a flexible, simple and less error-prone manner. Since the process is used externally, it is possible to produce extrusion cylinders with greater lengths than is known from the prior art. This reduces the production and installation costs of extrusion devices that use such extrusion cylinders use. In addition, it is possible to create clearly defined flow channels for the temperature control medium, which simplify the temperature control of the extrusion cylinder and make it more flexible. Finally, due to the increased length, the number of pins for plasticizing and mixing the extrudate guided in the extrusion cylinder can be increased, whereby the quality of the extrudate can be improved.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021560892A JP2022530199A (ja) | 2019-04-24 | 2020-04-08 | 冷却媒体または加熱媒体の移送手段を備えた押出しシリンダ |
CN202080029607.6A CN113710455A (zh) | 2019-04-24 | 2020-04-08 | 带冷却或加热介质引导的挤出滚筒 |
US17/604,007 US20220219369A1 (en) | 2019-04-24 | 2020-04-08 | Extrusion cylinder with means for conducting cooling or heating medium |
EP20717855.9A EP3959060A1 (de) | 2019-04-24 | 2020-04-08 | Extrusionszylinder mit kühl- bzw. heizmittelführung |
KR1020217036015A KR20220002347A (ko) | 2019-04-24 | 2020-04-08 | 냉각 또는 가열 매체를 유도하기 위한 수단을 갖는 압출 실린더 |
CA3133885A CA3133885A1 (en) | 2019-04-24 | 2020-04-08 | Extrusion cylinder with means for conducting cooling or heating medium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019110576.5A DE102019110576A1 (de) | 2019-04-24 | 2019-04-24 | Extrusionszylinder mit Kühl- bzw. Heizmittelführung |
DE102019110576.5 | 2019-04-24 |
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WO2020216619A1 true WO2020216619A1 (de) | 2020-10-29 |
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PCT/EP2020/059989 WO2020216619A1 (de) | 2019-04-24 | 2020-04-08 | Extrusionszylinder mit kühl- bzw. heizmittelführung |
Country Status (8)
Country | Link |
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US (1) | US20220219369A1 (de) |
EP (1) | EP3959060A1 (de) |
JP (1) | JP2022530199A (de) |
KR (1) | KR20220002347A (de) |
CN (1) | CN113710455A (de) |
CA (1) | CA3133885A1 (de) |
DE (1) | DE102019110576A1 (de) |
WO (1) | WO2020216619A1 (de) |
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US20230067134A1 (en) * | 2021-09-02 | 2023-03-02 | Yu Kyung CHO | Cylinder heating device of conduit forming system using waste synthetic resin |
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JPH0557768A (ja) * | 1991-08-29 | 1993-03-09 | Kobe Steel Ltd | 成形機用ジヤケツト付き複合シリンダおよびその製造方法 |
CN2915484Y (zh) * | 2006-02-18 | 2007-06-27 | 赵秋德 | 一种水降温直水道的挤出机螺筒 |
US20070222125A1 (en) * | 2006-03-24 | 2007-09-27 | Krauss-Maffei Kunststofftechnik Gbmh | Plasticizing cylinder with integrated heat pipes |
CN101767438A (zh) * | 2009-12-25 | 2010-07-07 | 广东联塑机器制造有限公司 | 一种挤出机的冷却衬套 |
CN208745314U (zh) * | 2018-08-30 | 2019-04-16 | 厦门博程塑胶材料有限公司 | 一种用于挤出机的筒体冷却装置 |
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US2987300A (en) * | 1959-05-29 | 1961-06-06 | Edward G S Greene | Heat transfer assembly |
DE4226350A1 (de) * | 1991-08-27 | 1993-03-04 | Barmag Barmer Maschf | Einschneckenextruder zur verarbeitung insbesondere hochviskoser, thermoplastischer kunststoffe |
DE19941160B4 (de) * | 1999-08-24 | 2004-03-04 | Berstorff Gmbh | Zylinder für einen Schneckenextruder mit Kanälen für ein Temperiermedium |
-
2019
- 2019-04-24 DE DE102019110576.5A patent/DE102019110576A1/de not_active Withdrawn
-
2020
- 2020-04-08 EP EP20717855.9A patent/EP3959060A1/de not_active Withdrawn
- 2020-04-08 WO PCT/EP2020/059989 patent/WO2020216619A1/de active Search and Examination
- 2020-04-08 US US17/604,007 patent/US20220219369A1/en active Pending
- 2020-04-08 CA CA3133885A patent/CA3133885A1/en not_active Abandoned
- 2020-04-08 JP JP2021560892A patent/JP2022530199A/ja active Pending
- 2020-04-08 KR KR1020217036015A patent/KR20220002347A/ko unknown
- 2020-04-08 CN CN202080029607.6A patent/CN113710455A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1353641A1 (ru) * | 1986-03-05 | 1987-11-23 | Украинский научно-исследовательский и конструкторский институт по разработке машин и оборудования для переработки пластических масс, резины и искусственной кожи | Черв чный пресс дл переработки полимерных материалов |
JPH0557768A (ja) * | 1991-08-29 | 1993-03-09 | Kobe Steel Ltd | 成形機用ジヤケツト付き複合シリンダおよびその製造方法 |
CN2915484Y (zh) * | 2006-02-18 | 2007-06-27 | 赵秋德 | 一种水降温直水道的挤出机螺筒 |
US20070222125A1 (en) * | 2006-03-24 | 2007-09-27 | Krauss-Maffei Kunststofftechnik Gbmh | Plasticizing cylinder with integrated heat pipes |
CN101767438A (zh) * | 2009-12-25 | 2010-07-07 | 广东联塑机器制造有限公司 | 一种挤出机的冷却衬套 |
CN208745314U (zh) * | 2018-08-30 | 2019-04-16 | 厦门博程塑胶材料有限公司 | 一种用于挤出机的筒体冷却装置 |
Also Published As
Publication number | Publication date |
---|---|
CN113710455A (zh) | 2021-11-26 |
CA3133885A1 (en) | 2020-10-29 |
EP3959060A1 (de) | 2022-03-02 |
DE102019110576A1 (de) | 2020-10-29 |
US20220219369A1 (en) | 2022-07-14 |
KR20220002347A (ko) | 2022-01-06 |
JP2022530199A (ja) | 2022-06-28 |
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