公开(公告)号：US10000032B2

公开(公告)日：2018-06-19

申请号：US14110438

申请日：2012-04-10

Applicant: Thomas Spiesshofer ,  Gebhard Engler ,  Markus Mueller

Inventor： Thomas Spiesshofer ,  Gebhard Engler ,  Markus Mueller

IPC: B30B1/28 ,  B30B15/14 ,  B21D24/12 ,  B30B1/26

CPC classification number: B30B15/14 ,  B21D24/12 ,  B30B1/266 ,  B30B1/28

Abstract: A method and a press are proposed for an energy-efficient drive of a press (1) with a bottom drive, in which a drive device (2) disposed in a bottom section (3), a plunger (1.1) executing a stroke (H) and receiving an upper tool part (1.2) with at least one acting tie rod (2.1.2) of a drive train (2.1) are provided and the upper tool part (2.1) corresponding to a bottom tool part (3.2) disposed in the bottom section (3) machines or forms a work piece (5). The drive device (2) is operated by at least one motor (2.1.1) and by way of a control and regulation device (4) connecting the motor (2.1.1) and the drive train (2.1). Each drive train (2.1) can be operated by its own motor (2.1.1). When using a drawing device with a holder (3.3.1), it is operated in the change and during at least a partial path of the respective stroke (H) by the drive train (2.1) while observing a shaft-type free space (3.2) provided in the bottom section (3) in a coupled or decoupled manner by a releasable rotatory or translational active connection.

公开(公告)号：US09713832B2

公开(公告)日：2017-07-25

申请号：US13866107

申请日：2011-10-14

Applicant: Dietmar Schollhammer

Inventor： Dietmar Schollhammer

IPC: B21D22/20 ,  B21D22/22 ,  B21D24/12 ,  B30B1/14 ,  B30B1/26 ,  B30B1/28 ,  B30B15/14 ,  B30B15/20

CPC classification number: B21D22/20 ,  B21D22/22 ,  B21D24/12 ,  B30B1/14 ,  B30B1/261 ,  B30B1/266 ,  B30B1/28 ,  B30B15/148 ,  B30B15/20

Abstract: The drawing press (10) according to the invention has for driving its ram (15) a directionally reversing gear mechanism (22, 54), for example a coupling gear mechanism, and at least one servomotor (23). The servomotor (23) passes through the reversal point (Ut) of the ram movement, which is predetermined by the kinematics of the coupling gear mechanism, for example the extended position of an eccentric drive. During the closing of the die (18), that is to say during a press stroke, the servomotor (23) is activated in such a way that it first passes through this reversal point (Ut), then stops, reverses and then passes through it once again, in order to open the die (18) again. Consequently, the braking to a standstill and re-acceleration of the servomotor for the upper ram (15) takes place while the actual drawing operation is still or already being performed, i.e. during the forming of the metal blank, which significantly reduces the cycle time.

公开(公告)号：US20150047517A1

公开(公告)日：2015-02-19

申请号：US14372217

申请日：2013-01-15

Applicant: SCHULER PRESSEN GMBH

Inventor： Thomas Spiesshofer

IPC: B30B15/16 ,  B30B15/24 ,  B30B1/28

CPC classification number: B30B15/165 ,  B30B1/28 ,  B30B15/0094 ,  B30B15/24

Abstract: A method of using data on the force flow in a press for the operation of a plunger, wherein the loads of the parts involved in the force flow can differ as a result of eccentrically operating forces, in such a way that the data about the respectively acting forces that, in accordance with Hooke's law, cause an extension or compression of a movement of the parts involved in the force flow, is measured and evaluated in relation to a drive device and a position of the plunger, whereupon a skewed position of the plunger is permitted or a skewed position of the plunger is counteracted or a skewed position of the plunger is set during operation of the press.

Abstract translation: 使用压力机中的力流的数据用于柱塞的操作的方法，其中涉及力流的部件的载荷可以由于偏心的操作力而不同，使得分别关于数据的数据 根据胡克定律引起对力流动涉及的部件的运动的延伸或压缩的作用力相对于驱动装置和柱塞的位置被测量和评估，因此，倾斜的位置 在冲压机的操作期间，柱塞被允许或者柱塞的倾斜位置被抵消或柱塞的倾斜位置被设定。

公开(公告)号：US3719445A

公开(公告)日：1973-03-06

申请号：US3719445D

申请日：1971-05-10

Applicant: DANLY MACHINE CORP

Inventor： SINDELAR W

IPC: B30B1/28 ,  B30B15/28 ,  B29H5/24

CPC classification number: B30B1/28 ,  B30B15/284

Abstract: A PRESS UTILIZING THE PRESS STRUCTURE AND CONTROLS OF A METAL WORKING PRESS BUT WHICH IS ADAPTED FOR COMPRESSION MOLDING OF LARGE PLSTIC PARTS ON A PRODUCTION BASIS. MEANS ARE PROVIDED FOR DRIVING THE PRESS SLIDE SLOWLY INTO BOTTOM DEAD CENTER (TO BE REFERRED TO HEREIN AS "DEAD CENTER") POSITION FOLLOWING RAPID DESCENT, FOR DEVELOPING A HIGH MOLDING FORCE, WHICH MAY BE SUBSTANTIALLY GREATER THAN THE NOMINAL RATING OF THE PRESS, AND FOR SUSTAINING THAT FORCE DURING CURING INTERVAL. PRESSURE IS REDUCED TO A LOWER LEVEL TO PERMIT REESTABLISHMENT OF LUBRICATION AT THE PRESS BEARINGS PRIOR TO MOVING THE SLIDE OUT OF ITS DEAD CENTER POSITION FOR COMPLETION OF THE CYCLE. THE HYDRAULIC OVERLOAD RELEASE DEVICE CONVENTIONALLY USED IN ESPECIALLY CONTROLLED TO ENABLE DEVELOPMENT OF HIGH MOLDING PRESSURE. IN ONE EMBODIMENT MOLDING PRESSURE IS DEVELOPED BY SLOW MOVEMENT OF THE SLIDE INTO ITS DEAD CENTER POSTION. IN ANOTHER EMBODIMENT THE OVERLOAD DEVICE IS DEPRESSURIZED SO THAT FINAL MOVEMENT OF THE SLIDE INTO DEAD CENTER OCCURS WIITH ONLY LIGHT LOADING, FOLLOWING WHICH THE REQUISITE PRESSURE IS DEVELOPED BY PUMPING UP THE HYDRAULIC OVERLOAD RELEASE WITH THE SLIDE STATIONARY. IN BOTH CASES MEANS ARE PROVIDED FOR BLEADING FLUID FROM THE OVERLOAD RELEASE MECHANISM TO RELEASE THE PRESSURE ON THE SLIDE BEFORE THE SLIDE BEGINS TO MOVE OUT OF DEAD CENTER.

D R A W I N G

公开(公告)号：US3147695A

公开(公告)日：1964-09-08

申请号：US21369462

申请日：1962-07-31

Applicant: HYMAN JULES K

Inventor： HYMAN JULES K

IPC: B30B1/28

CPC classification number: B30B1/28 ,  B30B15/0029 ,  Y10T74/18216 ,  Y10T83/87

公开(公告)号：US3082725A

公开(公告)日：1963-03-26

申请号：US80057659

申请日：1959-03-19

Applicant: FREEMAN CRAMPTON

Inventor： EARL CANNON

IPC: B30B1/26 ,  B30B1/28

CPC classification number: B30B1/28 ,  B30B1/26

公开(公告)号：US2766710A

公开(公告)日：1956-10-16

申请号：US26111851

申请日：1951-12-11

Applicant: BRANDES FRANK A

Inventor： BRANDES FRANK A

IPC: B30B1/28

CPC classification number: B30B1/28

公开(公告)号：US2310890A

公开(公告)日：1943-02-09

申请号：US42320041

申请日：1941-12-16

Applicant: BRANDES FRANK A

Inventor： BRANDES FRANK A

IPC: B30B1/28 ,  B30B15/00 ,  B30B15/04

CPC classification number: B30B1/28 ,  B30B15/0064 ,  B30B15/041

公开(公告)号：US2085799A

公开(公告)日：1937-07-06

申请号：US6753636

申请日：1936-03-06

Applicant: GLASNER RUDOLPH W

Inventor： GLASNER RUDOLPH W

IPC: B21D24/12 ,  B30B1/28

CPC classification number: B30B1/28 ,  B21D24/12

公开(公告)号：US09950487B2

公开(公告)日：2018-04-24

申请号：US14032201

申请日：2013-09-20

Applicant: SCHULER PRESSEN GMBH

Inventor： Thomas Spiesshofer

IPC: B30B1/28 ,  B30B15/14 ,  B30B15/00

CPC classification number: B30B1/28 ,  B30B15/0064 ,  B30B15/14

Abstract: A method for operating a machine tool/work machine includes providing a machine tool/work tool including a stroke element, a connection arrangement including a traction/pressure element and at least one traction/pressure point, a detachable connection including a connection element, a compensation element or a unit which generate a pre-stress, a (cutting) impact dampening, and compensates for a weight of the stroke element in the connection arrangement. The drive device acts on a work piece to be machined via the connection arrangement with the traction/pressure element and the at least one traction/pressure point via the stroke element. A force is produced via the compensation element or a unit corresponding to a weight of the traction/pressure element, the force being initiated independently from a drive force for the stroke element, to generate a pre-stress, a (cutting) impact dampening and a compensation of the weight of the stroke element in the connection arrangement.