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公开(公告)号：US20240117924A1
公开(公告)日：2024-04-11
申请号：US18275977
申请日：2022-02-04
申请人： MAAG GERMANY GmbH
发明人： Jonathan HUMMER
CPC分类号： F16M11/26 , F16M11/42 , B29C48/265
摘要： The invention relates to a movable stand (16) for an extrusion pump (10) that has a drive (14) and a transmission (12), the stand comprising a horizontal stand platform (18, 20, 70), which has wheels (22), and comprising at least one carrier (32, 34), which extends vertically with respect to the stand platform (18, 20, 70) and is connected to a carrying body (40), wherein the carrying body (40) comprises: a support (50) for the extrusion pump (10) and a fine vertical adjustment device (48) for the support (50); a carrying wall (54), on which the unit consisting of the transmission (12) and drive (14) of the extrusion pump (10) is fastened; and a housing (60), which surrounds a shaft (58) connecting the transmission (12) to the extrusion pump (10). The invention is characterised in that the carrying body (40) as a whole is detachably connected to the stand platform (18, 20, 70) only via the carrier (32, 34) and can be vertically adjusted with respect to the stand platform (18, 20, 70), in particular with respect to the carrier (32, 34).
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公开(公告)号：US20240009907A1
公开(公告)日：2024-01-11
申请号：US18219075
申请日：2023-07-06
申请人： Maag Germany GmbH
发明人： Dominik BUCHHOLZ , Michael ELOO , Patrick SLADKY , Jürgen VELTEL
IPC分类号： B29C48/00 , B29C48/345
CPC分类号： B29C48/0022 , B29C48/345 , B29B9/06
摘要： A pelletizer with a rotatably drivable cutter head for dividing material strands output from a die plate into pellets, the cutter head being drivingly connected to a drive motor via a drive shaft, and with a feed device for axial adjustment of the cutter head relative to the die plate in the direction of the cutter head axis of rotation. A spindle element of a spindle drive stage of the feed device is configured as a spindle sleeve which is axially firmly seated on the rotating drive shaft between the drive motor and the cutter head. The drive shaft is connected to the cutter head in an axially-fixed and rotationally-fixed manner and transmits the axial movement of the spindle sleeve to the cutter head.
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公开(公告)号：US20240060718A1
公开(公告)日：2024-02-22
申请号：US18233858
申请日：2023-08-14
申请人： MAAG GERMANY GmbH
发明人： Jochen SCHEURICH
CPC分类号： F26B5/12 , F26B13/001 , F26B25/10
摘要： A suction device for drying at least one plastic strand, incorporates a suction housing having a top side, a bottom side and several lateral surfaces, the top side having an inlet opening and one of the other surfaces having an outlet opening for the flow of a drying medium therethrough, and a screening element which has through apertures a base area with a maximum length and a maximum width. Each through aperture has an aperture cross-sectional area, and the sum of the aperture cross-sectional areas of all through apertures together forms a total aperture cross-sectional area. The screening element is on the top side and has its drying area above the inlet opening of the suction housing. The at least one plastic strand is moved in a process direction on the screening element, wherein the process direction is in a longitudinal direction of the screening element. The length of the drying area is at least 150 mm, and a ratio of the total aperture cross-sectional area of the through apertures to the base area of the drying area is between 30% and 45%, in particular 35% and 40%.
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公开(公告)号：US20240123645A1
公开(公告)日：2024-04-18
申请号：US17769236
申请日：2020-10-09
申请人： Maag Germany GmbH
CPC分类号： B26D7/0006 , B26D1/03 , B26D1/58 , B26D5/02 , B26D7/086 , B29B9/02 , B26D2001/0046
摘要： In a plastic strand granulator the width of a cutting gap between a cutting rotor and a knife strip is gauged by an adjustment mechanism by setting the position of the knife strip. For this purpose the adjustment mechanism has an actuator with a differential thread having a reducing transmission ratio. The adjustment mechanism can advantageously be gauged automatically to a predetermined cutting gap width by a control circuit, wherein the adjustment mechanism is gauged in dependence on vibration parameters which are captured on the knife strip or on the cutting rotor. For this purpose, ultrasonic vibrations are introduced into the component in question and detected at some distance therefrom and evaluated.
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公开(公告)号：US20240009892A1
公开(公告)日：2024-01-11
申请号：US18218213
申请日：2023-07-05
申请人： Maag Germany GmbH
IPC分类号： B29B9/06 , B29C48/345 , B29C48/00 , B29C48/88
CPC分类号： B29B9/065 , B29C48/345 , B29C48/0022 , B29C48/919
摘要： An underwater pelletizer including a die plate, a cutting chamber housing having a cutting chamber and a rotatably drivable cutter head, which is arranged in the cutting chamber for dividing melt strands output from the die plate into pellets. The cutting chamber is flushed through by process water which can be introduced through at least one inlet into the cutting chamber and, together with the cut pellets, can be discharged from the cutting chamber via an outlet. A plurality of flow channels and/or chambers are provided in the cutting chamber housing for generating different process water streams, which include at least one co-rotating flow path passing through at least one cutter head channel through the rotating cutter head, as well as at least one flow path which does not co-rotate and which leads from a fixed inlet into the cutting chamber.
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公开(公告)号：US20230235825A1
公开(公告)日：2023-07-27
申请号：US17585485
申请日：2022-01-26
申请人： MAAG GERMANY GMBH
发明人： DREW THOMPSON , CARL KELLEY
CPC分类号： F16K11/105 , F16K11/14
摘要： The invention relates to a 3-port valve for passing fluids therethrough, having a valve body, a port, a first sub-port and a second sub-port, with the port being adjoined by a main line which ends in a connecting region, said first sub-port having a first sub-port line that is connected to the connecting region, said second sub-port having a second sub-port line that is connected to the connecting region, with at least one valve member being arranged in the connecting region, which valve member can be displaced along a valve member axis between an opening position and a closed position thereof in the connecting region, so that, in a first valve position, the port is fluidically connected to the first sub-port, in a second valve position, the port is fluidically connected to the second sub-port, in a third valve position, the port is fluidically connected to both the first and second sub-ports, in a fourth valve position, the port is fluidically connected neither to the first sub-port nor to the second sub-port. The invention is characterized in that the valve body is formed from a high-tempered steel, or other suitable material, with the valve body being produced from a solid ingot and with the connecting region, the main port, the first sub-port line and the second sub-port line having been machined into the steel ingot. Heat transfer medium lines for passing a HTM therethrough are also machined into the same valve body to regulate the temperature of the fluid. Simultaneously or alternatively, electric heating cartridge receptacles may be machined into the valve body ingot.
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公开(公告)号：US20240351247A1
公开(公告)日：2024-10-24
申请号：US18745716
申请日：2024-06-17
申请人： Maag Germany GmbH
CPC分类号： B29B9/065 , B29B9/16 , B29B2009/166 , B29K2067/003
摘要： The invention relates to a method for processing PET polymers in order to form PET pellets. A PET melt is granulated in an underwater granulator in order to form PET pellets, wherein the process water is driven at a temperature below the glass transition temperature of the used PETs in order to produce a golf ball-like surface structure on the pellets during the underwater granulation process. According to the invention, the pellets are separated from the super-cooled process water within a second or less and are subjected to an at least two-stage post-treatment process after the drying process, wherein the pellets are supplied with a gas of a first temperature which is higher than the surface temperature of the pellets for a first period of time, said gas being kept uniformly hot, in a first post-treatment chamber to form nuclei, and the pellets are treated in a second post-treatment chamber to crystallize at a second temperature which is higher than the first temperature over a second period of time which is a multiple of the first period of time.
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公开(公告)号：US11815187B2
公开(公告)日：2023-11-14
申请号：US17585485
申请日：2022-01-26
申请人： MAAG GERMANY GMBH
发明人： Drew Thompson , Carl Kelley
CPC分类号： F16K11/105 , F16K11/14 , F16K11/22 , Y10T137/87877
摘要： The invention relates to a 3-port valve for passing fluids therethrough, having a valve body, a port, a first sub-port and a second sub-port, with the port being adjoined by a main line which ends in a connecting region, said first sub-port having a first sub-port line that is connected to the connecting region, said second sub-port having a second sub-port line that is connected to the connecting region, with at least one valve member being arranged in the connecting region, which valve member can be displaced along a valve member axis between an opening position and a closed position thereof in the connecting region, so that, in a first valve position, the port is fluidically connected to the first sub-port, in a second valve position, the port is fluidically connected to the second sub-port, in a third valve position, the port is fluidically connected to both the first and second sub-ports, in a fourth valve position, the port is fluidically connected neither to the first sub-port nor to the second sub-port. The invention is characterized in that the valve body is formed from a high-tempered steel, or other suitable material, with the valve body being produced from a solid ingot and with the connecting region, the main port, the first sub-port line and the second sub-port line having been machined into the steel ingot. Heat transfer medium lines for passing a HTM therethrough are also machined into the same valve body to regulate the temperature of the fluid. Simultaneously or alternatively, electric heating cartridge receptacles may be machined into the valve body ingot.
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