48results about How to "Consistent movement speed" patented technology

Disclosed is an apparatus (1) for conveying packages (10), comprising a first conveying device (4) that conveys the packages (10) in a predefined direction of travel (R) and a rotating device (6) which rotates at least some of the packages (10) by a predefined angle of rotation relative to a predefined axis of rotation. The rotating device (6) is equipped with at least one gripping mechanism (12)that grips the packages (10) for the rotating process. According to the invention, the conveying speed of the first conveying device (4) is synchronized with a moving speed of the gripping mechanism (12).

The invention discloses a large-sized hydraulic speed change floating box flap valve. The flap valve comprises a hinged support (1), a valve seat (3), an upper valve leaf (5) and a lower valve leaf (8), wherein both the valve seat (3) and the hinged support (1) are fixed on a pump station base; the upper valve leaf (5) is hinged with the hinged support (1) through a pin shaft (2); the lower valveleaf (8) is hinged with the upper valve leaf (5); the upper valve leaf (5) and the lower valve leaf (8) are hermetically contacted and matched with the valve seat (3) through a sealing structure, andthe upper valve leaf (5) is connected with the lower valve leaf (8) through at least one hydraulic mechanism (7); and one end of the hydraulic mechanism (7) is hinged with the upper valve leaf (5), and the other end of the hydraulic mechanism (7) is hinged with the lower valve leaf (8). After the structure is adopted, since the upper valve leaf and the lower valve leaf are provided with the hydraulic mechanism, the collision force of the valve leaves and the valve seat can be buffered by the hydraulic mechanism; thus water sealing rubber for sealing the valve leaves and the valve seat is prevented from being damaged so as to reduce the cost; meanwhile, the noise produced during collision is also reduced.

The invention provides an assistive rehabilitation training robot for stroke hemiplegic patients. The assistive rehabilitation training robot comprises an upper-layer armrest frame, a middle-layer detection frame, a lower-layer support frame and a movable base plate which are parallelly arranged in the vertical direction. Each adjacent two of the upper-layer armrest frame, the middle-layer detection frame and the lower-layer support frame are fixedly connected with each other by three telescopic rods and an electric push rod, and the lower-layer support frame is fixedly connected with the movable base plate by lower-layer support rods; an emergency stop switch, a display screen and a control panel are respectively mounted on the outer surface of a U-shaped frame of the upper-layer armrest frame, four tension sensors are peripherally uniformly distributed at the upper edge of the middle-layer detection frame, and a detachable chair is mounted on the lower-layer support frame; two driving wheels and two driven wheels are peripherally symmetrically mounted at the upper edge of the movable base plate, a control box is mounted on the outer surface of a U-shaped frame of the movable base plate, and pedals are further arranged on the U-shaped frame of the movable base plate; the control box is respectively connected with the four tension sensors, motors, the emergency stop switch, the display screen and the control panel. The assistive rehabilitation training robot has the advantage that rehabilitation training requirements of the stroke hemiplegic patients can be met.

The invention discloses a shearing synchronous oil circuit for a flash welding machine, which comprises a first shearing cylinder, a second shearing cylinder, a three-position four-way reversing valve and a synchronous motor. The first shearing cylinder and the second shearing cylinder are respectively provided with a first cavity and a second cavity, the three-position four-way reversing valve is provided with a first oil port, a second oil port, a third oil port and a fourth oil port, the first oil port of the three-position four-way reversing valve is connected with an oil inlet circuit, the third oil port of the three-position four-way reversing valve is connected with an oil return circuit, both a first inlet and a second inlet at one end of the synchronous motor are communicated with the second oil port of the three-position four-way reversing valve, a first outlet and a second outlet at the other end of the synchronous motor are correspondingly communicated with the first cavities of the first shearing cylinder and the second shearing cylinder respectively, and both the second cavities of the first shearing cylinder and the second shearing cylinder are communicated with the fourth oil port of the three-position four-way reversing valve. By the aid of the shearing synchronous oil circuit, the volume of oil entering the two shearing cylinders can be equivalent during shearing, and the movement speeds of the two shearing cylinders can be uniform.

The present invention is applicable to the technical field of pipe material spray printing, and provides a spray printing control method of a spray printing system, comprising: the second controller controls two synchronous motors to rotate forward at the same speed according to the start-up command, and the belt drives the spray printing The encoder moves forward along the guide rail; the first controller calculates the moving distance of the inkjet printer according to the synchronous speed signal; when the moving distance of the inkjet printer reaches the first preset distance, the second controller starts The coding signal controls the inkjet printer to start printing; when the moving distance of the inkjet printer reaches the second preset distance, the second controller controls the inkjet printer to stop printing according to the stop coding signal ; When the moving distance of the inkjet printer reaches the third preset distance, the second controller controls the synchronous motor to rotate in reverse according to the signal, so that accurate inkjet can be realized, and the inkjet is highly controllable.

The invention relates to the technical field of protective doors and discloses a protective double-leaf door. The protective double-leaf door comprises a first door leaf, a second door leaf and a drive device. The peripheral side faces of the first door leaf and the peripheral side faces of the second door leaf are all provided with covering edges covering and sealing the peripheral side faces of the door leaves. The covering edges of the inner side faces, located at the joint of the first door leaf and the second door leaf, of the door leaves are each provided with a boss portion, and the boss portions are matched with each other. The width of each boss portion is smaller than a half of the width of the inner side face of each door leaf. The drive device comprises a guide rail, rail wheel assemblies, an installation plate, a motor, a belt, belt pulleys and a controller, wherein the motor, the belt, the belt pulleys and the controller are arranged on the installation plate. The distance between the belt pulleys located at the two ends of the belt is larger than the width of the protective double-leaf door. The rail wheel assemblies connected with the first door leaf and the rail wheel assemblies connected with the second door leaf are connected to two segments, located in different movement directions, of the belt correspondingly. The two door leaves are synchronously driven to conduct the opening action or the closing action through the motor and the belt device, and therefore the movement speeds of the door leaves are equal. The drive device is simple in structure and reliable in strength.