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公开(公告)号：US4028923A
公开(公告)日：1977-06-14
申请号：US682964
申请日：1976-05-04
摘要： The disclosure is directed to improvement in piercing and reeling mills, to facilitate the changing of mandrel plugs and mill shoes. In piercing and reeling operations, mandrel plugs are supported at the ends of elongated mandrel bars, and workpieces are driven over the mandrel plugs while being rotated, to effect piercing and enlarging, in the case of piercing mills, and to achieve roundness, in the case of reeling mills. In each case, after processing a finite length of tubing, and while the workpiece remains on the mandrel, the mandrel is retracted, first stripping off the just-used mandrel plug, and then withdrawing the mandrel from the processed workpiece. A multi-position magazine is provided for retaining a circulating supply of mandrel plugs such that, after each operation, the used mandrel plug may be returned to the magazine for cooling, and a new plug may be brought quickly into working position ready for the next operation. The arrangement of the invention provides for expedited loading and discharge of the mandrel plugs, for greater efficiency in mill operation.The invention is further directed to improvements in mechanisms for changing of mill shoes and mill shoe adapters, as is necessary from time to time in conjunction with changing of the size of the workpiece processed. The improved arrangement permits an upper mill shoe to be released and supported on the lower mill shoe, and includes provisions for horizontal transfer of the lower shoe, along with the released upper shoe, to a position clear of the mill rolls, where they are easily accessible to an overhead mill hoist. Provision additionally is made to facilitate and expedite the removal from the top of the mill of the entire mounting chair for the upper mill shoe and its adapter, to facilitate change of the adapter and chair for different sizes of workpieces.
摘要翻译： 本公开旨在改善穿孔和卷取机，以便于改变心轴塞和磨鞋。 在穿孔和卷取操作中，心轴插头被支撑在细长芯棒的端部，并且工件在旋转时被驱动到心轴塞上，以在穿孔机的情况下进行穿孔和扩大，并且在 卷取机的情况。 在每种情况下，在处理有限长度的管道之后，并且当工件保持在心轴上时，心轴缩回，首先从正确使用的心轴塞脱离，然后从处理的工件中取出心轴。 提供了一种多位置仓，用于保持心轴塞的循环供应，使得在每次操作之后，所使用的心轴塞可以返回到料仓进行冷却，并且可以将新的塞子快速进入准备好的下一个工作位置 操作。 本发明的装置提供了快速加载和排出心轴塞，以提高轧机运转的效率。
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公开(公告)号：US4007655A
公开(公告)日：1977-02-15
申请号：US600265
申请日：1975-07-31
IPC分类号： B23D25/04
CPC分类号： B23D25/04 , Y10T83/2192 , Y10T83/4763
摘要： The disclosure is directed to improvements in flying cutters, particularly shears for severing light gage sheet or strip metal. Conventional flying shear mechanisms include a severing mechanism which is accelerated up to the speed of a moving strip or sheet material and then operated to sever the strip while moving synchronously therewith. The cutter mechanism is then returned to its starting position in readiness for a further operation. The present invention is directed to a novel and unique form of conveyor support, which is arranged in a novel manner to automatically extend or contract in accordance with movements of the shear, so that the sheet or strip material remains effectively continuously supported on both sides of the shear.The conveyor support system of the invention includes driven conveyor elements, which are guided in part by the moving shear carriage, such that the relationship of the conveyor support to the shear carriage remains constant while the shear carriage is in motion along with the travelling sheet or strip material.
摘要翻译： 本公开旨在改进飞刀，特别是用于切割轻量规片或带状金属的剪切机。 常规的飞剪机构包括切割机构，其被加速到移动的带材或片材的速度，然后在与其同步移动的同时操作切断条带。 然后，切割机构返回到其起始位置，以备进一步操作。 本发明涉及一种新颖独特的输送支撑形式，其以新颖的方式布置，以根据剪切的运动自动地延伸或收缩，使得片材或条带材料保持有效地连续地支撑在两侧 剪切。
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公开(公告)号：US4103530A
公开(公告)日：1978-08-01
申请号：US788253
申请日：1977-04-18
申请人： James W. Schuetz
发明人： James W. Schuetz
摘要： The disclosure relates to apparatus for center punching a hot metal billet preparatory to a piercing operation, in the production of seamless tubing. The apparatus provides a simple, reliable, mechanical arrangement effective to automatically compensate for normal variations in the diameter of successive hot metal billets, such that the center punching operation is carried out with greater accuracy than has heretofore been attained in regular production operations. The apparatus includes means for mechanically clamping a hot metal billet preparatory to center punching, and means for axially advancing a center punching tool into the end of the clamped billet. The center punching tool itself is mounted for limited transverse movement in relation to its advancing means, and is mechanically coupled to the clamping means by a compensating mechanism. Minor transverse adjustment of the position of the center punching tool in relation to the nominal axis of the apparatus, in order to obtain greater accuracy of alignment with the actual center line of a billet, is achieved by moving the center punching tool as a function of movement of the clamping mechanism. The clamping mechanism serves inherently to sense the actual diameter of the billet which is being clamped.
摘要翻译： 本公开涉及在制造无缝管时中心冲压准备穿孔操作的热金属坯料的装置。 该设备提供了一种简单，可靠的机械装置，其有效地自动补偿连续热金属坯料的直径的正常变化，使得中心穿孔操作以比迄今为止在常规生产操作中获得的更高的精度进行。 该装置包括用于机械夹紧准备中心冲孔的热金属坯料的装置，以及用于将中心冲压工具轴向推进到夹紧坯料的端部的装置。 中心冲压工具本身相对于其推进装置被安装成有限的横向移动，并且通过补偿机构机械地联接到夹紧装置。 通过将中心冲压工具作为一个或多个中心冲孔工具的移动来实现中心冲孔工具相对于设备的标称轴的位置的小的横向调整，以便获得更高的与坯料的实际中心线对准的精度 夹紧机构的运动。 夹紧机构固有地用于感测被夹紧的坯料的实际直径。
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公开(公告)号：US4037451A
公开(公告)日：1977-07-26
申请号：US682919
申请日：1976-05-04
申请人： James W. Schuetz
发明人： James W. Schuetz
摘要： The disclosure is directed to structural features of piercing and reeling mills to facilitate and expedite the changing of mill rolls, as is necessary from time to time for accommodation of new work sizes and/or for refurbishing of the rolls. The new mill construction includes a cap member which is removably secured to the upright members of the mill frame structure and forms, in effect, an integral part of the mill structure during normal operation. To effect changing of the mill rolls, provision is made for moving the cap to a laterally offset position, while still supported on the basic mill structure, to permit access to the mill rolls by means of an overhead crane. In the new mill structure, provision for releasing and lateral offset movement of the mill cap is self-contained within the mill structure, so that the plant crane is not required to be utilized in removing the mill cap, as heretofore. In one form, the cap is supported on horizontal flanges or tracks and is moved by self-contained hydraulic actuators. In another form, the mill cap incorporates combined clamps and wheel supports which, in one position, secure the cap to the mill uprights and, in another condition, provide mobile supports for the cap, permitting it to be rolled out of the way to provide overhead access.
摘要翻译： 本公开涉及穿孔和卷取机的结构特征，以促进和加速轧辊的更换，这是必要的，以适应新的工作尺寸和/或翻新辊。 新的轧机结构包括盖构件，该盖构件可拆卸地固定到研磨机架结构的直立构件，并且在正常操作期间实际上形成磨机结构的整体部分。 为了改变轧辊，提供了将盖移动到横向偏移位置，同时仍然支撑在基础轧机结构上，以允许通过桥式起重机进入轧辊。 在新的轧机结构中，轧机盖的释放和侧向偏移运动的设置在轧机结构内是独立的，因此，如前所述，工厂起重机不需要用于拆卸轧机盖。 在一种形式中，盖子支撑在水平法兰或轨道上，并通过独立的液压致动器移动。 在另一种形式中，铣刀盖组合有组合的夹具和轮子支撑件，其在一个位置中将盖子固定到研磨机立柱上，并且在另一个条件下，为盖子提供移动支撑件，允许其滚动以提供 开销访问。
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公开(公告)号：US4037449A
公开(公告)日：1977-07-26
申请号：US710013
申请日：1976-07-30
申请人： James W. Schuetz
发明人： James W. Schuetz
摘要： The disclosure relates to method and apparatus for the operation of a plug mill, in the production of seamless tubes. Provisions are made for maintaining a circulating supply of plug and mandrel assemblies such that, after a tubular shell from a piercing mill has been given a first pass through the plug mill, the entire combination of the plug and mandrel assembly, and the just-processed shell, are transferred bodily into alignment with the axis of a second stage mill. The shell is then advanced in the same direction through a second mill stand, over a second plug, while simultaneously being stripped from the first mandrel. By enabling the shell to be passed through the second plug mill pass, without the requirement of an intermediate operation of stripping the shell from the first stage mandrel, significant time economies are realized. With conventional plug mill equipment and techniques, the plug mill represents a bottleneck in the sequence of operations involved in the production of seamless tubing. In contrast, with the method and apparatus of the invention, the plug mill can easily operate at a greater rate of speed than the piercing mill supplying tubular shells to it. This is accomplished with only a modest increase in investment in mill equipment.
摘要翻译： 本公开涉及在无缝管的生产中用于塞式磨机的操作的方法和装置。 规定了保持塞子和心轴组件的循环供应，使得在来自穿孔机的管状壳体已经被首次通过塞子磨机之后，塞子和心轴组件的整个组合以及刚加工的 壳体被转移到与第二级磨机的轴线对准。 然后，壳体沿着相同的方向通过第二轧机机架在第二个插头上前进，同时从第一心轴剥离。 通过使壳体能够通过第二塞子球磨机，而不需要从第一级心轴将壳体剥离的中间操作，实现了显着的时间经济。 使用传统的塞子磨机设备和技术，塞子磨机代表无缝管生产中所涉及的操作顺序的瓶颈。 相比之下，利用本发明的方法和装置，塞式磨机可以以比提供管状壳体的穿孔机更快的速度操作。 这是通过对轧机设备投资的适度增加来实现的。
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