摘要:
A cylinder positioning control apparatus designed to effect positioning of a cylinder by learning control that uses not only an overrun distance but also a cylinder speed as input data for control. The apparatus has a device for taking in a displacement x and speed V of a cylinder, a device for calculating a predicted overrun distance y.sub.i for the present drive from a predicted overrun distance y.sub.i-1 in the preceding drive, a cylinder speed V.sub.i-1 at the time of outputting a braking signal during the preceding drive, and a speed V.sub.i of the cylinder being driven, a device for judging whether or not a condition to be satisfied to output a braking signal is satisfied, and for outputting a braking signal when the condition is satisfied, a device for taking in a displacement x.sub.bp and speed V.sub.bp of the cylinder when the braking signal is output, a device for taking in a displacement x.sub.stop of the cylinder when it has stopped, and a device for calculating a predicted overrun distance y.sub.1-1 and a cylinder speed V.sub.i-1 at the time of outputting a braking signal, which are to be used in calculation for the subsequent drive, from the displacement x.sub.bp and speed V.sub.bp of the cylinder when the braking signal was output, and the displacement x.sub.stop of the cylinder stopped.
摘要:
A rodless cylinder with a position detector and a brake has a sliding table which is slidably retained on a cylinder tube. A moving member (piston yoke) of the rodless cylinder is secured to the sliding table. A brake unit part is connected to one side of the sliding table, and a sensor part is connected to the other side of the sliding table. A brake plate is disposed to extend through the brake unit part. Both ends of the brake plate are connected to a first and second head covers, respectively, which are provided at both ends of the cylinder tube. A first and second brake shoes are disposed to sandwich the brake plate therebetween. The first brake shoe is subjected to brake spring force. A passage for supplying a pressure fluid is communicated with the other side of the sliding table. Thus, the brake is actuated by allowing the brake spring force, together with a fluid pressure if necessary, to act on the first brake shoe, and the brake is released by the action of a fluid pressure.
摘要:
At a step of pressurizing a workpiece after reducing a speed of a piston rod at an end of a forward stroke of the piston rod by restrictively allowing compressed air to flow out of an exhaust-side pressure chamber, operation of a rapid exhaust valve is triggered by reduction of internal pressure of the exhaust-side pressure chamber to lower pressure than internal pressure of a pressurizing-side pressure chamber to thereby directly open the exhaust-side pressure chamber into the atmosphere through the rapid exhaust valve and rapidly reduce back pressure of a main piston remaining in the exhaust-side pressure chamber.
摘要:
A fluid squirt gun includes a linear flow path provided in a barrel, a nozzle at a tip end of the flow path, a valve seat provided in the flow path, a valve element disposed for movement in an axial direction of the flow path to open and close the valve seat, a spring for pressing the valve element in a valve-closing direction, and a trigger for opening and closing the valve element. The valve element includes a forward pressure receiving face on which fluid in the flow path acts in a valve-opening direction in a closed state of a valve and a reverse pressure receiving face on which the fluid acts in the valve-closing direction in the closed state of the valve and both the pressure receiving faces have substantially equal pressure receiving areas.
摘要:
An organic electroluminescence device utilizes a novel combination of one or more biscarbazole derivative compounds as the phosphorescent host material in combination with an organometallic phosphorescent material as a dopant in the light emitting region of the device, where the biscarbazole derivative compounds are represented by a formula (1A) or (2A) below: where A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3; and the organometallic phosphorescent material is a compound having a substituted chemical structure represented by the formula (4A): where each R is independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, alkylaryl, CN, CF3, CnF2n+1, trifluorovinyl, CO2R, C(O)R, NR2, NO2, OR, halo, aryl, heteroaryl, substituted aryl, substituted heteroaryl or a heterocyclic group; M is a platinum group metal; Ar′, Ar″, Ar′″ and Ar″″ each independently represent a substituted or unsubstituted aryl or heteroaryl substituent on the phenylpyridine ligand; a is 0 or 1; b is 0 or 1; c is 0 or 1; d is 0 or 1; m is 1 or 2; n is 1 or 2; m+n is the maximum number of ligands that can be coordinated to M, and wherein at least one of a, b, c, and d is 1 and when at least one of a and b is 1 and at least one of b and c is 1, at least one of Ar′ and Ar″ is different from at least one of Ar′″ and Ar″″.
摘要:
An image forming apparatus includes a latent image bearer, a developing device, a supplier, and a controller. The controller controls the supplier according to a detection result of a toner density by the toner density sensor and a toner density target value to adjust the toner density of developer in the developing device. The controller is configured to correct the toner density target value and an imaging condition affecting a toner adhesion amount of an output image separately from the toner density, according to a component adhesion deterioration degree being a deterioration degree of carrier due to adhesion of a toner component, obtained based on at least an average image area ratio of the output image, and a coating abrasion deterioration degree being a progression degree of deterioration due to coating abrasion of the carrier, obtained based on at least the average image area ratio of the output image.
摘要:
A protective layer forming device, including: a powdery image bearer protecting agent formed of a granulated product containing a fatty acid metal salt and an inorganic lubricant; and a roller-shaped protecting agent supplying member configured to supply the powdery image bearer protecting agent to a surface of an image bearer.
摘要:
In an image forming apparatus, provided with for each toner category a supply toner conveyance path including, at least as components, a developing means, a toner container corresponding to the developing means, and a connection means corresponding to the developing means and the toner container, each of the components of the supply toner conveyance path being individually replaceable, and includes a toner category detection means configured to detect toner category used in each component; a reporting means configured to report whether toner categories respectively used in all components of the same supply toner conveyance path are the same; and a control means configured to control the reporting means, based on detection information by the toner category detection means, when the component of the supply toner conveyance path is replaced.