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701results about How to "Reliable support" patented technology

Laser cutting device, laser cutting method, and laser cutting system

It is an object of the present invention to provide a laser cutting device, a method for laser cutting and a laser cutting system with which it is possible to perform laser cutting of parts of various shapes through easy control, to prevent adhesion of dust or similar and scratches being formed in cut parts, and to send out such parts while reliably supporting the same. The present laser cutting device 5 is comprised with a material transferring means A that transfers a sheet-like material 11 in a feeding direction, a processing head B that is capable of irradiating laser light towards the material, a head moving means C that makes the processing head move in the feeding direction X and a width direction Y of the material, an upstream-sided supporting means (belt conveyer mechanism F) that supports the material on an upstream side of a downward portion of the processing head and that expands and contracts a supporting region R2 for the material accompanying movements of the processing head in the feeding direction, and a downstream-sided supporting means (belt conveyer mechanism E) that supports cut parts on a downstream side of a downward portion of the processing head and that expands and contracts a supporting region R1 for the cut parts accompanying movements of the processing head in the feeding direction.
Owner:TOYOTA STEEL CENT CO LTD

Process method and equipment for heading and anchoring parallel operation construction

ActiveCN104564050AImprove boot rateRaise the level of single advance in tunnelingSlitting machinesMine roof supportsComputer scienceBuilding construction
The invention discloses process method and equipment for heading and anchoring parallel operation construction. According to the process, a heading face is divided into a heading machine operation area and an anchoring support area, wherein the heading machine operation area ranges from a heading head to a heading machine tail, a heading machine post-anchoring operation range serves as the anchoring support area, the heading machine operation area and the anchoring support area are collectively called as a temporary support area, temporary support is carried out in the temporary support area by adopting folding telescopic laneway hydraulic support frames, and heading machine cutting and permanent support are parallelly operated; when the heading machine cutting and anchoring support are completed for one step pitch, the hydraulic support frames positioned on the tail ends of the temporary support area are withdrawn and carried to the heading head through an auxiliary support frame lifting and carrying device, and the hydraulic support frames are lifted to complete the temporary support so as to be subjected to heading and anchoring parallel operation in a next cycle. The heading and anchoring parallel operation construction comprises a heading machine, a plurality of laneway hydraulic support frames, the auxiliary support frame lifting and carrying device, an anchoring support operation platform, a machine back transportation system and a machine tracking ventilating dustproof facility.
Owner:郑东风 +1

Plastic liner bag with mouth retaining means

A pleated neckdown bag for lining a receptacle is disclosed wherein the bag is made of a flexible plastic film. The disclosed bag has one or more pleat portions (18) fixed at points around the mouth portion (26) of the bag to reduce the circumference of the mouth portion relative to the circumference of the body portion (14). The reduced circumference mouth portion of the neckdown bag can be fitted over a supporting receptacle. The top portion (12) of the bag is thereby more securely held to the support, and the mouth portion is more securely held in an open state, since the narrowed mouth portion of the bag can better engage a support such as the rim of a waste bin. Bag embodiments having flat and flat rectangular constructions, convenient for manufacture, storage, shipping, and dispensing, are also disclosed. Also disclosed is a tabbed neckdown bag embodiment with a tab (52) modifying means to advantageously modify stress and strain at and near the conjunction of a seam and mouth portion of a neckdown bag. The tab is intended to reduce or eliminate the possibility of tearing of the bag at or near a seam in the neighborhood of the tab. The tab projects from a tab base (58), defined between first (54) and second (56) reentrant arcuate portions of a mouth edge (36), and a top seam portion (20) of the bag extends across the tab base and into the tab. Also disclosed is a tab embodiment, usable in a pleated neckdown bag having a flat construction, where inclusion of the tab does not limit certain advantages pertaining to a flat bag construction.
Owner:METZGER MICHAEL A

Test device and test method of simulating well concentration cement slurry displacement efficiency

The invention provides a test device of simulating well concentration cement slurry displacement efficiency. The test device of simulating well concentration cement slurry displacement efficiency comprises a shaft system, a device rack system, a slurry mixing system and a circulation displacement system, and the device rack system, the slurry mixing system and the circulation displacement system mate with the shaft system. The shaft system comprises a shaft and a sleeve which is sleeved in the shaft. The bottom end of the shaft is closed, and the top end of the shaft is an outlet which is connected with the circulation displacement system in a mobile mode. A gap which is arranged between the bottom end of the sleeve and the bottom end of the shaft forms a circulation passage, and the top end of the sleeve is an inlet which is connected with the circulation displacement system. The invention further provides a method of using the device of simulating well concentration cement slurry displacement efficiency to conduct a well concentration cement slurry displacement efficiency simulation experiment. The test device and the test method of simulating well concentration cement slurry displacement efficiency can simulate displacement action of cement slurry in different flow states, detect the displacement efficiency of the cement slurry under conditions of a plurality of well deviation angles, shafts with different sizes and different degree of eccentricity in real-time and can conveniently conduct a multi-angle omnibearing experiment.
Owner:CHINA PETROLEUM & CHEM CORP +1
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