摘要:
The invention pertains to a device for loading goods into and/or unloading goods from a loading space 25, particularly a container, with a conveyor arm 1 that features a transfer station 5, 7, 9 for receiving the goods in the region of its proximal end and a transfer station 21, 23 for delivering the goods in the region of its distal end, wherein the conveyor arm 1 features a transport section 13, 15, 17, 19, 21 for transporting the goods from the transfer station 5, 7, 9 to the transfer station 20, wherein the transfer station 20 is realized in the form of a transfer and/or removal head 21, 23 that automatically deposits the goods at a predefined position in the loading space (25) and/or automatically picks up the goods from a predefined position in the loading space (25), and wherein the conveyor arm 1 is able to continuously transport the stream of successive goods to and/or from the predefined position.
摘要:
The invention pertains to a device for loading goods into and/or unloading goods from a loading space 25, particularly a container, with a conveyor arm 1 that features a transfer station 5, 7, 9 for receiving the goods in the region of its proximal end and a transfer station 21, 23 for delivering the goods in the region of its distal end, wherein the conveyor arm 1 features a transport section 13, 15, 17, 19, 21 for transporting the goods from the transfer station 5, 7, 9 to the transfer station 20, wherein the transfer station 20 is realized in the form of a transfer and/or removal head 21, 23 that automatically deposits the goods at a predefined position in the loading space (25) and/or automatically picks up the goods from a predefined position in the loading space (25), and wherein the conveyor arm 1 is able to continuously transport the stream of successive goods to and/or from the predefined position.
摘要:
In a process and device for monitoring a residual amount of hook thread in a double thread lockstitch sewing machine, a bobbin is used, which is divided into a large clamber and a small chamber due to the arrangement of a middle flange, wherein the small chamber accommodates the residual amount of thread. An abrupt reduction in the speed of rotation of the bobbin, n.sub.S, takes place dating sewing at the time of the transition from the principal to the residual amount of thread as a consequence of the abrupt change in the thread pull-off site in the bobbin. The jump (abrupt change) in the speed of rotation is measured and is processed info a display signal
摘要:
A valve is formed with a valve chamber and with an entrance port, a first exit port and a relief exit port each of which communicates with the chamber. A valve member is movably mounted within the chamber, and a pair of valve seats is mounted within the chamber for cooperation with the valve member, one of the seats being movable. The valve member and movable seat are biased in such a manner that the valve is normally seated with respect to both seats. When fluid in the entrance port exceeds a certain crack pressure, the movable seat moves away from the valve member and the fluid flows out the relief exit port. To stop flow out the relief exit port without creating a pressure surge, the valve member, actuated by a control, seats against the movable seat and at the same time moves away from the other seat so that the fluid continues to circulate through the first-named exit port. The valve is particularly adapted for efficient control of the flow of fuel during start-up, operation and shutdown of the jet engine of an aircraft.
摘要:
A process and device for monitoring the bobbin thread on stitch-forming machines, on the bobbin of which a residual amount of thread is wound in a winding direction opposite the direction of winding of the principal amount of thread, is to ensure that a first control function will be generated at the beginning of consumption of the residual amount of thread, and a second control function is generated nearly without delay in the case of thread end or thread break. To achieve this, two signal patterns are received with a phase shift from a bobbin acting as a signal generator, and the first signal function is generated in the case of a deviation of the actual phase shift from the desired phase shift. If only one signal pattern is received, this first control function is also generated if its signal sequence deviates from a reference signal sequence. The second control function is generated if a stoppage of the bobbin lasts longer than a predeterminable number of stitches. Devices for carrying out this process, as well as a device for winding thread on the bobbin in different directions of rotation for the principal amount of thread and the residual amount of thread are provided.
摘要:
A pilot-operated valve suitable for pontoon inflation arrangements contains a main valve poppet urged against a valve seat connecting the inlet and outlet ports of the valve. A portion of the inlet pressure urges a piston carrying the valve poppet away from the valve seat, but this is resisted by a portion of the inlet pressure acting in a pressure volume on the opposite side of the piston. By way of an electrical signal, a manual operation or pneumatic pressure, a pilot valve is opened so as to relieve the pressure on the main valve poppet tending to close it. This allows the valve to open and fluid to pass through the valve assembly. Once the pilot valve has opened pressure from the inlet is applied within the pilot valve to hold it in the open position until the inlet pressure has been substantially reduced. Operation of the pilot valve also allows inlet pressure to be applied to a crossover connection of the valve. Thus a series of valves with their crossover connections connected together will all be operated, if one of them is operated so as to generate pressure in the crossover line.
摘要:
A sewing or embroidering machine is provided with a thread-cutting device and a signal transmitter representing the angular position of the arm shaft. The drive of the catch thread device is acted upon as a function of the signals generated by the signal transmitter according to a movement program stored in a memory. The path data of this movement program are in a defined relation to the rotary movement or the current angular position of the hook. The drive of the catch thread device is part of a regulating device operating as a cascade control or of a control device operating as a path plan control. Due to the exact agreement in time between the movement process of the catch thread device and the course of the rotary movement of the hook, the thread-cutting process can now also be carried out during the phase of deceleration of the sewing machine, so that an inexpensive, uncontrolled motor can now be used to drive the sewing machine.
摘要:
The control circuit of a catch thread device has a counter for the main shaft of the swing machine. The counter counts the number of revolutions of the main shaft 26 during the reception of one of at least two signal intensities and is reset to its initial value when this signal intensity changes to the other signal intensity. When a predetermined maximum number of revolutions is reached, the counter emits a signal indicating a thread fault.
摘要:
Arrangements for controlling a data switching network fabric and for synchronizing duplicate modules of such a fabric. A control complex, for determining new virtual connections to be established, and for disconnecting existing virtual connections, is connected through data links to the network fabric of a data switch. The network fabric has internal control processors. The control complex communicates with these processors by sending control packets over a dedicated internal ATM link and virtual connections to these internal processors to control their establishment and disconnection of user virtual connections. Duplicate modules of the data switching fabric receive identical packets and, when synchronized, transmit identical packets at the same time. The synchronization process is implemented by data links between the control processors of the duplicate fabrics to report progress on the step by step synchronization of internal queues. The algorithms for routing cells are identical in the two modules so that once the modules are synchronized, they remain in synchronism because they use identical paths. Advantageously, a switch to a standby module can be made without losing any cells. Advantageously, the control complex can transmit control packets at a rate limited only by the ability of the control complex to generate the packet, the ability of the fabric control processors to receive these control packets, and the bandwidth of the data links connecting the control complex to the network fabric. Advantageously, no special buses are required for connecting the control complex to the network fabric.
摘要:
A process and device for monitoring the bobbin thread on stitch-forming machines, on the bobbin of which a residual amount of thread is wound in a winding direction opposite the direction of winding of the principal amount of thread, is to ensure that a first control function will be generated at the beginning of consumption of the residual amount of thread, and a second control function is generated nearly without delay in the case of thread end or thread break. To achieve this, two signal patterns are received with a phase shift from a bobbin acting as a signal generator, and the first signal function is generated in the case of a deviation of the actual phase shift from the desired phase shift. If only one signal pattern is received, this first control function is also generated if its signal sequence deviates from a reference signal sequence. The second control function is generated if a stoppage of the bobbin lasts longer than a predeterminable number of stitches. Devices for carrying out this process, as well as a device for winding thread on the bobbin in different directions of rotation for the principal amount of thread and the residual amount of thread are provided.