Patents Assigned to Werkzeug- und Formenbau
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Patent number: 11858189Abstract: A transfer system which can be used in a flexible manner for transporting or processing, respectively, profiles, in which the injection device comprises a mold for receiving the profile during the injection, wherein the mold has at least two contour parts and the injection device has a closing unit for opening/closing the contour parts, wherein the closing unit is configured for keeping the contour parts open until the profile is enclosed by the contour parts, and wherein the transportation device is configured for moving, preferably not rotating, the profile exclusively parallel to the transportation path, wherein the closing unit and the injection device are assembled so as to be displaceable conjointly with the first feed table, and the first feed table in the direction of the transportation path is displaceable so far until the contour parts enclose the profile.Type: GrantFiled: February 3, 2021Date of Patent: January 2, 2024Assignee: STEFAN PFAFF WERKZEUG- UND FORMENBAU GMBH & CO KGInventor: Anton Sutter
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Patent number: 11833633Abstract: To increase the degree of automation in the manufacture of profiles, a tray for the interim storage, the handling and the transport of profiles is proposed, comprising: a frame, and at least two carriers which are secured parallel to one another on the frame, in order to retain and/or mount respective profiles on the carriers, wherein a stop is provided, said stop being provided at one end of the carriers in the longitudinal extent thereof and/or at one end of the frame, in order to be used as a reference point for the position of the profiles. Moreover, corresponding magazines and a transport device and a processing device are proposed.Type: GrantFiled: November 2, 2021Date of Patent: December 5, 2023Assignee: STEFAN PFAFF WERKZEUG-UND FORMENBAU GMBH & CO KGInventor: Anton Sutter
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Patent number: 11400659Abstract: A sealing profile receiving device having first and second holding units for receiving and holding first and second sealing profile elements, and a casting unit for casting a connecting portion for connecting the first and second sealing profile elements and/or for casting first and second end terminations of the first and second sealing profile elements. A first and/or second and/or third drive unit for driving at least one holding and/or clamping and/or ejector element is/are provided and includes a chain comprising a plurality of chain links arranged at least between two guide faces of a guide unit for guiding the chain and/or chain links, such that an adjusting force can be exerted in the pulling and pushing directions of the chain by the first and/or second and/or third drive unit.Type: GrantFiled: October 8, 2019Date of Patent: August 2, 2022Assignee: Stefan Pfaff Werkzeug-Und Formenbau Gmbh & Co KGInventors: Anton Sutter, Simon Braun
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Patent number: 11260485Abstract: A sealing strip holder for manipulating and transporting a sealing strip preform in an at least partially automated production process, the sealing strip preform preferably having limp properties. To make the manufacturing process faster and less expensive the sealing strip holder comprises at least one clamping jaw which interlockingly and/or frictionally engages at least one surface portion of the sealing strip preform.Type: GrantFiled: August 3, 2017Date of Patent: March 1, 2022Assignee: Stefan Pfaff Werkzeug-Und Formenbau Gmbh & Co KGInventors: Alexander Reiners, Anton Sutter
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Publication number: 20210268704Abstract: A transfer system which can be used in a flexible manner for transporting or processing, respectively, profiles, in which the injection device comprises a mold for receiving the profile during the injection, wherein the mold has at least two contour parts and the injection device has a closing unit for opening/closing the contour parts, wherein the closing unit is configured for keeping the contour parts open until the profile is enclosed by the contour parts, and wherein the transportation device is configured for moving, preferably not rotating, the profile exclusively parallel to the transportation path, wherein the closing unit and the injection device are assembled so as to be displaceable conjointly with the first feed table, and the first feed table in the direction of the transportation path is displaceable so far until the contour parts enclose the profile.Type: ApplicationFiled: February 3, 2021Publication date: September 2, 2021Applicant: STEFAN PFAFF WERKZEUG- UND FORMENBAU GMBH & CO KGInventor: Anton SUTTER
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Publication number: 20200114587Abstract: A sealing profile receiving device having first and second holding units for receiving and holding first and second sealing profile elements, and a casting unit for casting a connecting portion for connecting the first and second sealing profile elements and/or for casting first and second end terminations of the first and second sealing profile elements. A first and/or second and/or third drive unit for driving at least one holding and/or clamping and/or ejector element is/are provided and includes a chain comprising a plurality of chain links arranged at least between two guide faces of a guide unit for guiding the chain and/or chain links, such that an adjusting force can be exerted in the pulling and pushing directions of the chain by the first and/or second and/or third drive unit.Type: ApplicationFiled: October 8, 2019Publication date: April 16, 2020Applicant: STEFAN PFAFF WERKZEUG- UND FORMENBAU GMBH & CO KGInventors: Anton Sutter, Simon Braun
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Publication number: 20180207846Abstract: In order to improve manufacturing tolerances, a method for producing a positionable sealing profile for vehicle doors and a positioning method using sealing profiles with a positioning pin are proposed. In the production method in which a positioning pin is also injection-molded, at least two injection-molding processes are carried out before the tool is re-opened and/or without the sealing profile being alternatively reclamped in another tool. In the corresponding positioning method, the positioning pin may be moved against the stop and/or introduced into a recess, such that the positioning pin and thereby the sealing profile retain a defined position in relation to the tool.Type: ApplicationFiled: March 2, 2018Publication date: July 26, 2018Applicant: STEFAN PFAFF WERKZEUG- UND FORMENBAU GMBH & CO KGInventor: Anton SUTTER
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Publication number: 20180065284Abstract: In order to reduce production tolerances, a receiving device is proposed for receiving a first, in particular a sealing profile for vehicle doors, which is designed to injection mold at least one, in particular two further profiles onto the first profile, comprising at least two molds, in order to hold the first profile in each of the molds at least in some sections, having a connecting device for connecting two of the at least two molds and for aligning the first profile, wherein the two interconnected molds each comprise at least one receiving opening for receiving and holding the profile and the connecting device, wherein the receiving opening is designed to be able to receive the first profile and the connecting device in at least one of the two interconnected molds so as to be at least partly countersunk.Type: ApplicationFiled: November 1, 2017Publication date: March 8, 2018Applicant: STEFAN PFAFF WERKZEUG- UND FORMENBAU GMBH & CO KGInventor: Anton SUTTER
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Publication number: 20170326698Abstract: A sealing strip holder for manipulating and transporting a sealing strip preform in an at least partially automated production process, the sealing strip preform preferably having limp properties. To make the manufacturing process faster and less expensive the sealing strip holder comprises at least one clamping jaw which interlockingly and/or frictionally engages at least one surface portion of the sealing strip preform.Type: ApplicationFiled: August 3, 2017Publication date: November 16, 2017Applicant: STEFAN PFAFF WERKZEUG-UND FORMENBAU GMBH & CO KGInventors: Alexander REINERS, Anton Sutter
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Patent number: 6190157Abstract: The invention concerns an ejector for a discharging device for the removal of preforms which enables a partially cooled preform to be detached safely from a form tool and, on complete cooling, to be likewise removed from the discharging device safely and completely.Type: GrantFiled: November 12, 1998Date of Patent: February 20, 2001Assignee: Otto Hofstetter AG, Werkzeug-und FormenbauInventors: Otto Hofstetter, Luis Fernandez
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Patent number: 6131336Abstract: An apparatus for controlling the flow of air in an air duct structure includes a lamella unit in the air duct structure moveable between a plurality of positions for controlling the flow of air in the air duct structure. A rocking lever having a groove is pivotally mounted on the air duct structure for pivotal movement about a pivotal axis. The lamella unit has an engageable part disposed in the groove to provide an operable connection between the lamella unit and the rocking lever such that pivoting of the rocking lever about the pivotal axis effects movement of the lamella unit between the plurality of positions. An adjusting element is provided for effecting pivotal movement of the rocking lever about the pivotal axis.Type: GrantFiled: June 30, 1998Date of Patent: October 17, 2000Assignees: Fickenscher & Co. GmbH, Werkzeug- und FormenbauInventors: Reinhard Krause, Herbert Meyer
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Patent number: 4227394Abstract: Apparatus for the automatic manufacture of drop forgings, particularly wrhes, from split-off and stamped workpieces comprises prebending means having a stationary bending jaw and a bending jaw which is movable in a horizontal plane, transfer means, and a power hammer which is disposed below the prebending means and has forging dies which are oppositely movable in a horizontal plane.Type: GrantFiled: August 8, 1978Date of Patent: October 14, 1980Assignee: "Wefoba" Werkzeug-und Formenbau Gesellschaft mbH & Co., KGInventor: Othmar Heimel
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Patent number: 4142397Abstract: A counterblow machine hammer, which is pneumatically operated and in which he tups are hydraulically returned and at their rear end protrude into compressed air chambers, which are interconnected and by a pressure-regulating valve are constantly connected to a compressed air system. The impact energy of the tups is controlled by the air pressure in the air chambers.Type: GrantFiled: October 5, 1977Date of Patent: March 6, 1979Assignee: "Wefoba" Werkzeug-und Formenbau Gesellschaft m.b.H. Co. KGInventor: Othmar Heimel