50results about How to "Prevent excessive bending" patented technology

The invention discloses a folding mechanism and electronic equipment, and belongs to the field of communication equipment. The folding mechanism comprises a base part, a first shell base, a second shell base, a first screen supporting plate, a second screen supporting plate and a third screen supporting plate, the first shell base is rotationally arranged on the first screen supporting plate, the second shell base is rotationally arranged on the second screen supporting plate, the third screen supporting plate is movably connected with the base part in the supporting direction of the third screen supporting plate; the first shell base is rotatably connected with the base part through a first swing arm, the second shell base is rotatably connected with the base part through a second swing arm, the first screen supporting plate is slidably and rotatably connected with the base part through a third swing arm, and the second screen supporting plate is slidably and rotatably connected with the base part through a fourth swing arm, the rotating axes of the first swing arm and the third swing arm are arranged at intervals, and the rotating axes of the second swing arm and the fourth swing arm are arranged at intervals. The folding mechanism can prevent the bending part of the flexible screen from being extruded to be excessively bent, and the service life of the flexible screen can be prolonged.

A resilient contact 11 rise upwards diagonally towards the open end of an electrical terminal. A supporting member 11b is formed by folding an end of the contact 11 downwards and making the end of this folded over portion make contact with the base face of the protecting cover B. By these means, even if the point of contact is set towards the open end, the contact force can be maintained, and the rising member 11a is supported by the supporting member 11b when bending.

The invention relates to a sheet metal bending device based on feedback detection and rolling bending. The device comprises a drive motor on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the drive motor, and the clamping and fixing base is provided with a machined part. The device further comprises a capacitance induction thickness detector, a rolling shaft, a proximity switch, a detection feedback device and a controller. The rolling shaft and the proximity switch are arranged on the bending side of the machined part. The detection feedback device comprises an ultrasonic crack detector arranged on the clamping and fixing base. The capacitance induction thickness detector, the proximity switch, the pressure sensor and the ultrasonic crack detector are connected with the main machine through a DSP data processing module. Crack detection and rolling shaft extrusion and friction are combined for bending, the quantity of cracks is greatly reduced, and machining quality is improved. The proximity switch is arranged to automatically control the bending angle, and excessive bending is prevented.

A wire guiding liner, in particular welding wire liner, has a plurality of roll holders which are displaceable with respect to each other, each roll holder holding a plurality of rolls. The angular displaceability of a roll holder with respect to the adjacent roll holder is limited such that when the wire is fed through the liner, it always touches exclusively on the rolls even when the liner is bent to its maximum curve, such that the wire while being inserted always hits the next roll at an angle that will push it towards and maintain it guided at the center of the liner.

The invention relates to a sheet metal bending system and method with the detection feedback function and the clamping control function. The system comprises a driving motor arranged on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the driving motor. A machined workpiece is installed on the clamping and fixing base. The system further comprises a capacitance induction thickness detector, a rolling shaft, a proximity switch, a pressure sensor, a detection feedback device and a controller. The rolling shaft and the proximity switch are installed on the bending side of the machined workpiece. The detection feedback device comprises an ultrasonic crack detector installed on the clamping and fixing base. The capacitance induction thickness detector, the proximity switch, the pressure sensor and ultrasonic crack detector are all connected with the main machine through a DSP data processing module. According to the system, bending is performed through combination of crack detection and extrusion and friction of the rolling shaft, the quantity of cracks is greatly reduced, and machining quality is improved. The proximity switch is arranged to automatically control the bending angle, and excessive bending is prevented. The pressure sensor is used for controlling clamping pressure, and a plate is prevented from deforming or getting loose.

The underlying invention is directed to devices for collecting objects, such as fruits, from the ground. In particular, an object collector grid protector (11) is provided, which is configured for use with a collector grid basket (8) of an object collector device. A corresponding basket (8) comprises an object penetrable grid comprising a plurality of mutually spaced resilient grid bars (9) supported by and extending off a basket base (10). The object collector grid protector (11) comprises at least one annular protector shell (13) with a predefined lateral width (W) overlapping, when properly applied to the grid basket (8), with a predefined grid basket section located adjacent to the basket base (10), to thereby disable in the overlapping region a passage of objects into the grid basket (8).

The invention relates to a metal plate bending device and method based on bending angle control and feedback torque regulation. The device comprises a driving motor arranged on a machine frame, a clamping and fixing base, and a main unit, wherein a bending shaft is installed on the driving motor, and a part to be machined is arranged on the clamping and fixing base. The device further comprises an ultrasonic thickness detector installed on the machine frame, an ultrasonic crack detector, a pressure sensor, a roller, a proximity switch, and a controller connected with the main unit, wherein the ultrasonic thickness detector, the ultrasonic crack detector, the pressure sensor and the proximity switch are all connected with the main unit through a DSP data processing module. By combining staged bending with feedback control, the number of cracks is reduced greatly, and machining quality is improved. The roller is arranged for extrusion friction of the inward-concave surface of the part to be machined, protruding burrs and cracks are effectively removed, and subsequent processing is omitted. Bending angle is controlled through the proximity switch, excessive bending is prevented, and machining safety is improved.

The invention discloses a light non-metal armored submarine cable. The submarine cable comprises a central cable composed of one or more electric units, an armor layer and an outer coating layer, wherein the armor layer is twisted outside the central cable; the armor layer is sleeved with the outer coating layer; the armor layer is formed by twisting a plurality of circular or flat nonmetal armored elements and/or a plurality of armor metal wires; when the non-metal armored element is circular, the non-metal armored element is composed of a non-metal rod and an outer sheath extruded outside the non-metal rod, or is composed of a central rod body composed of a plurality of non-metal rods which are stacked in a tangent manner, and an outer sheath extruded outside the central rod body; and when the non-metal armored element is flat, the non-metal armored element is composed of a plurality of non-metal rods and an outer sheath extruded outside the non-metal rods. According to the invention, the problems of large submarine cable weight and large vertical laying installation stress under the condition of large water depth are solved, lighter submarine cable weight is achieved while the mechanical performance of the deep submarine cable is ensured, and the laying construction and the operation safety of the submarine cable are ensured.

The invention relates to a metal plate bending device with torque regulation and roll bending. The metal plate bending device comprises a drive motor, a clamping fixed seat and a main engine which are installed on a rack, a motor shaft of the drive motor is provided with a bending shaft, and a machined workpiece is arranged on the clamping fixed seat; the metal plate bending system further comprises an ultrasonic thickness detector, a support rod, a roller and a controller, wherein the ultrasonic thickness detector is installed on the rack with the help of a support, the support rod is installed in a clamping groove of the clamping fixed seat, the roller is installed on the clamping fixed seat and is located on the concave surface side of the machined workpiece, and the controller is connected with the main engine, the upper end of the support rod is connected with a proximity switch, the roller is connected to the upper end face of an adjustment plate in a rotating mode, and the lower end face of the adjustment plate is installed in an installing groove of the clamping fixed seat with the help of a rotary shaft and a spring. Bending is conducted by using the most suitable torque, and the machining quality is improved; by means of the proximity switch, the bending angles are automatically controlled, and excessive bending is prevented; by means of the roller, friction and extrusion are carried out on the face, recessed inwards, of the machined workpiece, and cracks and burrs on the concave surface are effectively reduced.

The invention relates to a bending device and method based on positioning clamping control and feedback control. The device comprises a driving motor arranged on a machine frame, a clamping and fixing base and a main unit, wherein a bending shaft is installed on the driving motor, and a part to be machined is arranged on the clamping and fixing base. The device further comprises a capacitive sensing thickness detector, a roller, a proximity switch, a pressure sensor, a detection feedback device and a controller, wherein the roller and the proximity switch are arranged on the bent side of the part to be machined, the detection feedback device comprises an ultrasonic crack detector arranged on the clamping and fixing base, and the capacitive sensing thickness detector, the proximity switch, the pressure sensor and the ultrasonic crack detector are all connected with the main unit. By combining crack detection with roller extrusion friction for bending, the number of cracks is reduced greatly, and machining quality is improved; the proximity switch is arranged to automatically control bending angle, so that excessive bending is prevented; the pressure sensor is adopted for controlling clamping pressure and positioning, so that a metal plate is prevented from deformation or disengagement and machining reliability is improved.

The invention relates to a bending device based on intelligent adjustment and control. The bending device based on intelligent adjustment and control comprises a drive motor, a clamping fixing base and a host which are arranged on a machine frame; the host controls the drive motor; a bending shaft is installed on a motor shaft of the drive motor; the clamping fixing base is provided with a processed workpiece. The bending device based on intelligent adjustment and control further comprises an ultrasonic thickness detector installed on the machine frame through a support, a supporting rod installed in a clamping groove of the clamping fixing base and a controller connected with the host, wherein the upper end of the supporting rod is connected with a proximity switch; the ultrasonic thickness detector and the proximity switch are connected with the host through a DSP data processing module. Bending is conducted with the most proper torque by detecting the thickness of the processed workpiece, the influence on the processed workpiece from too large or too small torque is avoided, the crack ratio is reduced, and the processing quality is improved. The proximity switch is arranged to automatically control the bending angle and prevents excessive bending. Meanwhile, the proximity switch can adjust the height and angle conveniently and adapt to bending of sheet metal of multiple dimensions and multiple angles.

The invention relates to a metal plate bending device and method based on feedback detection and rolling bending. The device comprises a driving motor arranged on a machine frame, a clamping and fixing base and a main unit, wherein a bending shaft is installed on the driving motor, and a part to be machined is arranged on the clamping and fixing base. The device further comprises a capacitive sensing thickness detector, a roller, a proximity switch, a detection feedback device and a controller, wherein the roller and the proximity switch are arranged on the bent side of the part to be machined, the detection feedback device comprises an ultrasonic crack detector arranged on the clamping and fixing base, and the capacitive sensing thickness detector, the proximity switch and the ultrasonic crack detector are all connected with the main unit through a DSP data processing module. By combining crack detection with roller extrusion friction for bending, the number of cracks is reduced greatly, and machining quality is improved; the proximity switch is arranged to automatically control bending angle, so that excessive bending is prevented.

The invention discloses an optical fiber jumper with a spring protection layer, comprising an optical cable and connectors arranged at the two ends of the optical cable. The optical cable comprises an external protection layer and an internal glass fiber core for light propagation. The external protection layer comprises a glass sealing sleeve and an insulating rubber layer from inside to outside, and a spring protection layer is arranged between the glass sealing sleeve and the insulating rubber layer. The gap between the spring protection layer and the glass sealing sleeve and the gap between the spring protection layer and the insulating rubber layer are filled with sponge. The two ends of a spring in the spring protection layer are respectively fixed to the two connectors. By arranging the spring protection layer in the external protection layer of the glass fiber core, the radial compressive ability of the jumper is improved, the glass fiber core is prevented from being bent too much and damaged, and the overall strength of the jumper is greatly improved.

The invention relates to a bending device based on rolling bending and torque control. The device comprises a drive motor on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the drive motor, and a machined part is arranged on the clamping and fixing base. The device further comprises an X-ray thickness detector, a proximity switch, a first pressure sensor, a second pressure sensor and a rolling shaft, wherein the X-ray thickness detector is installed on the rack through a support, the proximity switch is installed on the clamping and fixing base, the first pressure sensor and the second pressure sensor are located on the side face and the bottom face of the machined part respectively, and the rolling shaft is arranged on the concave face side of the machined part. Clamping force is controlled through the pressure sensors, and excessive deformation and loosening of plates are avoided. Bending at the most proper torque is carried out, and machining quality is improved. The proximity switch is arranged to automatically control the bending angle, and excessive bending is prevented. The inner concave face of the machined part is rolled through the rolling shaft, and cracks and burrs on the concave face are reduced.

Disclosed is a chair seat board (100) and a chair (1000) to which a chair backboard (200) is coupled. The chair seat board (100) may comprise: a frame unit 40 having a plurality of frames (41, 42, 43, 44) configured in a hollow shape, respectively, and implemented to allow independent movement; and a support unit configured to support the frame unit 40 while being coupled to the frame unit (40) on a lower side of the frame unit (40).

The invention relates to a bending system and method with the detection feedback function and the phased bending function. The system comprises a driving motor arranged on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the driving motor. A machined workpiece is installed on the clamping and fixing base. The system further comprises a capacitance induction thickness detector, a pressure sensor, a proximity switch, a detection feedback device and a controller. The pressure sensor and the proximity switch are installed on the bending side of the machined workpiece. The detection feedback device comprises an ultrasonic crack detector installed on the clamping and fixing base. The capacitance induction thickness detector, the pressure sensor, the proximity switch and the ultrasonic crack detector are all connected with the main machine through a DSP data processing module. According to the system, the crack proportion is greatly reduced due to crack detection and phased bending, and machining quality is improved. The proximity switch is arranged to automatically control the bending angle so that excessive bending can be prevented, besides, the height and the angle can be conveniently adjusted due to the proximity switch, and the system can adapt to bending of multi-size and multi-angle sheet metal.