摘要:
A method and an apparatus for the economical production of containers from thermoplastic material with a blow moulding machine (3) are disclosed. For shaping the containers at least one first pressure channel (21) is provided, supplying a first pressure. Likewise at least one second pressure channel (22) is provided, supplying a second pressure, wherein the first pressure is lower than the second pressure. The air in the first pressure compartment (21) is used for the pre-blowing or for other blowing steps of the containers. The air in the second pressure compartment (22) is used for the final blowing of the containers. The final blown containers are vented into the first pressure compartment (21). A control unit is provided which maintains an essentially constant pressure in the first pressure compartment during the pre-blowing and the venting into the first pressure compartment. A pressure level of the external pressure reservoir (20) can be adjusted accordingly.
摘要:
A blowing machine used to produce containers of correctly temperatured preforms in blowing stations including correctly temperatured blow molds, having functional get-up components such as at least electric servomotors assigned to at least the blowing stations to control and/or monitor secondary functions of functional get-up components during production. In order to bring at least some of said functional get-up components for secondary functions to the correct temperature, an electrically operated, controllable liquid temperature control system is supplied by at least one temperature control device and is integrated into the blowing machine and guided through the functional get-up components.
摘要:
An apparatus for sorting piece goods may include a receiving surface which can rotate about a predefined rotation axis and is designed to receive the piece goods. The apparatus may include a first guide rail for guiding the piece goods, wherein this guide rail has a gap through which one region of the piece goods passes and by means of which another region of the piece goods is held. The apparatus may include a turning device which pivots the piece goods with respect to a longitudinal direction of the piece goods. The apparatus may include a separating device which separates out some of the sorted piece goods which are not guided in a predefined manner by the first guide rail or by the turning device. The turning device may be arranged upstream of the separating device in the movement direction of the piece goods.
摘要:
An apparatus for sorting piece goods may include a receiving surface which can rotate about a predefined rotation axis and is designed to receive the piece goods. The apparatus may include a first guide rail for guiding the piece goods, wherein this guide rail has a gap through which one region of the piece goods passes and by means of which another region of the piece goods is held. The apparatus may include a turning device which pivots the piece goods with respect to a longitudinal direction of the piece goods. The apparatus may include a separating device which separates out some of the sorted piece goods which are not guided in a predefined manner by the first guide rail or by the turning device. The turning device may be arranged upstream of the separating device in the movement direction of the piece goods.
摘要:
A method for controlling and regulating a unit for producing hollow bodies, including a compressor, a blowing machine and a control unit, which controls both the compressor and the blowing machine. A system also provided for returning blast air from the finished blown container to the compressor. Also, a device for producing hollow bodies, with a compressor, a blowing machine and a control system, which for the exchange of data is connected to the blowing machine and to the compressor.
摘要:
A method for blow molding containers in blow molds of a device operated with the recovery of air from the blow molds, where operation is accomplished consecutively in a preblow stage with a low pressure and at least two further blow stages with respective higher pressures, and where subsequently, in a recovery phase with several pressure stages, air is fed from the respective blow mold, air from the blow mold is first fed into the volumes allocated to the preblow stage, with priority over a feeding at least into the volume allocated to the pressure stage following the preblow stage. Further, a blow control and a control means for the pressure in the volume, where the blow control has a program section for primarily feeding air first into the volume, and possibly for limiting the pressure in the volume to a multiple of the pressure.
摘要:
A method for blow molding containers in blow molds of a device operated with the recovery of air from the blow molds, where operation is accomplished consecutively in a preblow stage with a low pressure and at least two further blow stages with respective higher pressures, and where subsequently, in a recovery phase with several pressure stages, air is fed from the respective blow mold, air from the blow mold is first fed into the volumes allocated to the preblow stage, with priority over a feeding at least into the volume allocated to the pressure stage following the preblow stage. Further, a blow control and a control means for the pressure in the volume, where the blow control has a program section for primarily feeding air first into the volume, and possibly for limiting the pressure in the volume to a multiple of the pressure.
摘要:
A blowing machine used to produce containers of correctly temperatured preforms in blowing stations including correctly temperatured blow molds, having functional get-up components such as at least electric servomotors assigned to at least the blowing stations to control and/or monitor secondary functions of functional get-up components during production. In order to bring at least some of said functional get-up components for secondary functions to the correct temperature, an electrically operated, controllable liquid temperature control system is supplied by at least one temperature control device and is integrated into the blowing machine and guided through the functional get-up components.
摘要:
Pramlintide, a peptide having the 37 amino acid sequence KCNTATCATQRLANFLVHSSNNFGPILPPT-NVGSNTY-NH2 is prepared via a convergent three-fragment synthesis strategy from the fragments comprising the amino acid residues 1-12, 13-24 and 25-37, respectively.
摘要:
Cyclobutane-1,2-dicarboxylic esters of the formula: ##STR1## in which R.sup.1 is a C.sub.1-8 -alkyl group, an optionally substituted mono- or bicyclic cycloaliphatic group having 3 to 10 ring carbon atoms, an optionally substituted aryl or arylalkyl group or an optionally substituted saturated heterocyclic group and R.sup.2 is either C.sub.1-4 -alkyl or both radicals R.sup.2 together form a group of the formula --(CH.sub.2).sub.n --(n is 2 to 4), are prepared from the corresponding maleic or fumaric esters and ketene acetals in the presence of a Lewis acid and a sterically hindered base. The reaction is stereoselective when optically active maleic or fumaric esters are employed. The cyclobutane-1,2-dicarboxylic esters (I), in particular those having trans configuration, are intermediates in the synthesis of pharmaceutically active compounds.