4989results about "Press ram" patented technology

A tissue press and method for shaping or compressing a piece of tissue comprises first and second members movable relative to each other. A first forming element of a predetermined shape is selectively engageable on the first member. A second forming element of predetermined shape is selectively engageable on the second member. The first and second forming elements are positionable on opposite sides of the piece of tissue. The first and second members are relatively movable between a first spaced apart condition and a second condition in which the piece of tissue is held between the first and second forming elements. Means are preferably provided for monitoring and controlling the amount of pressure applied to the piece of tissue, in order to maintain the tissue in a viable living condition. Means may also be provided for draining off fluid from compressed tissue, so that the tissue can be implanted in a compressed state and imbibe fluid from the host site. A retainer, which may be expandable, can be used to maintain the tissue graft in a compressed condition.

An implant is formed of an expandable material. An opening is formed in a bone in a patient's body. At least a portion of the implant is positioned in the opening in the bone in the patient's body. The implant is retained against movement relative to the bone in the patient's body by absorbing body fluid with the implant and expanding the implant while the implant is disposed in the opening in the bone in the patient's body. The implant may be a hip replacement member.

A system and process for stamping parts having tolerances below 1000 nanometers. The inventive system and process is particularly suited for producing optoelectronic parts. The system includes a stamping press and one or a progression of stamping stations for supporting a punch and die. The stamping stations are designed to maintain substantial alignment of the punch and die with minimal moving components. The stamping station includes a shaft for rigidly guiding the punch to the die. The stamping press is capable of providing the punch with the necessary force to perform the stamping operations. The system includes an interface system for interfacing the force of the press with the punch, while simultaneously structurally decoupling the press from the punch. The system also includes a locating sub-plate, for locating the stamping station in alignment relative to each other, and means for in-line machine stock material before entry into the stamping stations.

An adjustable hydraulic press with movable upper and lower units is composed of vertical columns, upper transverse beam, primary slide block, the slide block for pressing edge, bench, floating bench, lower transverse beam, the primary and secondary cylinders fixed to upper transverse beam, and a push-up cylinder fixed to lower transverse beam for driving said floating bench.

The invention relates to a multi-point forming device for a plate. The device comprises a die carrier, a plurality of upper pressure head pressurizing units and a plurality of lower pressure head supporting units, wherein the plurality of upper pressure head pressurizing units are arranged on an upper flat plate of the die carrier; the plurality of lower pressure head supporting units are arranged on a lower flat plate of the die carrier; each upper pressure head pressurizing unit consists of an upper pressure head, a spring and a travel adjusting component; an upper pressure head is arrangedin a positioning hole on the upper flat plate of the die carrier, and can move up and down along the axis of the hole; the spring is arranged between the upper pressure head and the upper flat plate of the die carrier; each lower pressure head supporting unit consists of a lower pressure head, a plunger and a hydraulic cylinder; the hydraulic cylinder is fixed on the lower flat plate of the die carrier; and the plunger is connected with the lower pressure head. A forming curved surface can be formed optionally and is easy and convenient to adjust. Any element is not required to be adjusted inreal time in a forming process, and stable and uniform normal pressure always acts on the plate, so that effective normal constraint is formed and the plate can be effectively prevented from wrinkling. The device has a reasonable structure, is easy to operate, works reliably, and is an ideal multi-point forming device for the plate.

The invention relates to a high performance and energy-saving double-acting hydrostatic press driven by a servo motor. The invention retains the rapid liquid-filling and direction control circuits in the common hydrostatic press, but uses a controllable hydraulic source composed of an AC servo motor and a quantitative oil pump to replace an uncontrollable hydraulic source driven by a common induction motor and combine with various sensors, and realizes the energy-saving pressure, position and speed control of the system under the control and regulation of the electrical motor; displacement sensors are added in a main cylinder and an auxiliary cylinder, a pressure sensor is added in the oil inlet line of the main cylinder, thus realizing the closed-loop control of position, speed and pressure; and a proportional relief valve is added at the oil outlet of the auxiliary cylinder, thus realizing variable blank holder force floating blank-holding of the auxiliary cylinder, wherein the electrical motor is the high-power AC servo motor, the electrical motor is connected with a controller, and the flow control and the volume velocity-governing and pressure-regulating of the main oil line can be realized by controlling the speed of the electrical motor. The invention completely uses the advantages of the high-power AC servo motor such as high efficiency, controllable performance, adjustable performance and good reliability to realize the optimization of process parameters, improve the hydrostatic press performance and reduce the energy consumption.

For separating the contents from the package of used capsules (10) for making beverages, particularly capsules of metal containing coffee, an device (1) respectively a press, particularly a manual press, is preferably used, by which the capsule is crunchable, such that its contents comes out of the extraction side of the capsule, where it is collected and can be disposed of separately from the capsule.

A guided keeper assembly and method for metal forming dies includes a base having a mounting face, a connector portion and a central aperture. A guide pin has a cylindrical center portion closely received in the central aperture of the base for reciprocation, an enlarged first end with an alignment member, and an outwardly opening circumferential groove. A retainer ring is removably mounted in and protrudes radially outwardly of the groove to securely, yet detachably, retain the base on the guide pin between the enlarged head and the retainer ring in an assembled condition to facilitate transport and mounting of the guided keeper assembly.

According to an embodiment of the invention, a mechanical press includes a transmission that comprises a first transmission and a second transmission coupled to the first transmission. The first transmission is for receiving mechanical movement from a first motor and to transmit mechanical movement to a ram. The second transmission is for modifying configuration of the first transmission in response to mechanical movement received from a second motor, and a profile of movement of the ram over a pressing cycle is affected by a profile of movement from the second motor over the pressing cycle.

A heating-type vacuum press device which has a small vacuum isolation chamber in which pressing is performed under vacuum without damage to seal packing, while heating. A lower fixed frame and an upper movement frame constitute a wall portion of the isolation chamber. A gas-tight sliding mechanism ensures gas-tightness between the lower fixed frame and the upper movement frame. Thereby, the isolation chamber is formed in a space defined by the lower fixed frame, the upper movement frame, a base and a fitting plate. The lower fixed frame surrounds a receiving table equipped with a heater for a workpiece, and is arranged on the base such that the lower fixed frame is spaced from the receiving table. The upper movement frame is hanged from the fitting plate such that the upper movement frame is spaced from a pressing plate equipped with a heater, and surrounds the pressing plate. The isolation chamber is sucked to vacuum, and a workpiece on the receiving plate is pressed under heating and vacuum at a high temperature with a low thrusting force by descending the pressing plate. The present apparatus is suitable for bonding multi-functional laminated films having high heat-resistant temperature.

The present invention discloses an adjustable hydraulic press with both upper and lower double action, specially suitable for the cylindrical gear formed by stamping or expanding, closed forging and the metal cold forming or metal hot forming of punching, finishing, flanging and drawing of sheet materials. The press comprises four columns, an upper beam, a main slide block, a hold down slide block, a fixing worktable, a floating worktable and a lower beam. The hydraulic chamber of master cylinder fixed in the upper beam communicates to the hydraulic chamber of the auxiliary cylinder, the plunger of master cylinder is connected to the main slide block and drives it. The hydraulic chamber of gas-liquid power accumulator fixed in the main slide block communicates to the hydraulic chamber of hold down cylinder, the plunger of hold down cylinder is connected to the hold down slide block and drives it. The plunger of ejecting cylinder fixed in the lower beam is connected to the floating worktable and drives it. The hydraulic press of the invention simplifies the hydraulic system of the existing hydraulic, improves utilization rate of energy, production efficiency and working accuracy of workpiece.

The invention relates to a plate forming device and a plate forming method, in particular to a magnetorheological fluid flexible die forming device and a magnetorheological fluid flexible die forming method for plates, which aims to solve the problem that existing hydraulic forming, semisolid viscous medium pressure forming and polyurethane rubber forming are suitable for certain plate forming range respectively and advantages of the three cannot be combined in a plate forming process. The forming device comprises a first magnetorheological fluid injection cylinder, a second magnetorheological fluid injection cylinder, a magnetorheological fluid container, magnetorheological fluids, solenoids, a die, a side pressing cylinder, a third magnetorheological fluid injection cylinder and a fourth magnetorheological fluid injection cylinder. During the forming process, the first magnetorheological fluid injection cylinder and the second magnetorheological fluid injection cylinder injects the magnetorheological fluids into a first cavity, magnetic field intensity of the magnetorheological fluids region is changed through regulating electricity, and then shapes needed of the plates to be formed can be formed. The magnetorheological fluid flexible die forming device and the magnetorheological fluid flexible die forming method for plates are applicable to the field of plate forming.

An integrated system for: complete waste compactor operational control; remote fullness monitoring; and, remote performance and maintenance diagnostics. Such diagnostic information is transferred wirelessly or otherwise to one or more recipients, so as to directly provide a critical warning in real time.The waste compactor controller / monitor system allows for periodic real-time oil viscosity measurements of the hydraulic fluid to account for changes in such viscosity. The system adjusts the timing of the compactor stroke to permit more efficient operation and inhibit damage to the hydraulic ram and / or container during use.

A collection apparatus weight and fullness level reporting system includes: an inlet; a removable collection bin receiving material placed into the collection apparatus; a compacting mechanism including a ram body, wherein the ram body travels between a home position located above the collection bin to a maximum travel position located inside the collection bin, wherein during each compaction cycle the ram body travels along a variable length of the compaction path; a fullness-reporting module that determines the height of the material in the collection bin; and a controller that determines the length of the compaction path the ram body travels during each compaction cycle based on the input received from the fullness reporting module, wherein at the end of each compaction cycle in which the material height is below a maximum height, the ram body is brought to rest at a height below the home position.

In a press having a plunger supported so as to be movable linearly back and forth by drive means which include at least one servomotor in combination with a rotatably supported inertia structure connected for rotation with the servomotor, the inertia structure has an inertia moment which is small enough to permit reversal of the servomotor within a stroke length of the plunger so that the stroke of the plunger is adjustable under the control of a control device connected to the servomotor for controlling its operation.

A baler is described which has a collection chamber or duct and a baling chamber. Crop material enters the duct until a pre-determined level has been reached at which time a stuffer transfers the pre-compressed crop to the baling chamber. A control system is provided for calculating the ratio between the amount of crop material which should be formed into bales under optimal conditions and the rate of flow of crop material entering the duct. This ratio can be displayed and used to control the speed of the towing vehicle. The present invention uses the duct as a kind of measuring cylinder to determine the rate at which crop material is entering the baler.

The invention discloses a household kitchen waste disposal device. The device comprises a casing, a crushing assembly which is arranged in the casing and is used for crushing waste into preliminary residues, a dehydration assembly used for dehydrating the crushed waste to form dehydrated residues and waste liquids, a drying assembly used for drying the residues as well as a compression assembly used for compressing the residues; and the crushing assembly, the dehydration assembly, the drying assembly and the compression assembly are connected sequentially. With the household kitchen waste disposal device, the crushing assembly, the dehydration assembly, the drying assembly and the compression assembly are arranged, and crushing, dehydration, drying and compression operations can be performed on the waste sequentially, so that repeated pollution is no longer caused during centralized disposal of the waste, and the kitchen waste disposed by the disposal device is small in size, low in water content and convenient to transport and recycle.

The plate material mould-free multipoint forming equipment is formed from upper and lower basic body control unit groups, regulating mechanism, loading mechanism and machine frame, and is characterized by that said upper and lower basic body groups are respectively formed from several adjustable basic bodies and edge-pressing devices, its basic body can be regulated by regulating mechanism and can be freely moved along its axial direction, and can be positioned at any position. The edge-pressing device is mounted on the periphery of every upper and lower basic body control unit group, and said edge-pressing device can be controlled and operated by several hydraulic cylinders.

A method for automatically shaping the load-bearing hollow brick includes such steps as preparing concrete, stirring, filling in mould, inserting core mould while vibrating, hydraulic pressing, and demoulding. Its apparatus is composed of electric power control box, control mechanism, motor, concrete preparing system, shaping system, feeding unit, and discharging unit.

The invention relates to a four-column forging hydraulic machine which is composed of columns, an upper beam, a middle beam, a lower beam, a working oil cylinder and a return cylinder. A column guiding structure is arranged between the middle beam and the columns. The four-column forging hydraulic machine is characterized in that the column guiding structure comprises four groups of guiding assemblies composed of guiding plates and wedge plates, the wedge plates are pressed and fixed in the middle beam through pressing plates, supporting plates are arranged close to the upper ends of the guiding plates, adjusting pads are arranged between the supporting plates and the pressing plates, the lower end of a piston rod of the working oil cylinder is provided with a cylindrical cavity, the cylindrical cavity is internally provided with a first spherical pad and a spherical column, a supporting sleeve is sleeved outside the spherical column, a support structure is arranged at the upper part of a raised part at the lower end of the supporting sleeve, an elastic pad is arranged between the supporting structure and the raised part, and the lower end of the supporting sleeve is internally provided with a second spherical pad. According to the structure, the columns and the guiding structure are in surface contact, so that the local stress is reduced, and the traction injury of the columns is avoided. In addition, the second spherical pad, the spherical column and the first spherical pad are rotated in a matching way, therefore, the deflection of the piston rod along the axis is avoided, and the traction injury and the damage of the working oil cylinder and the piston rod are reduced.

An apparatus and method are provided to rapidly thaw and heat frozen bags of biological materials, such as plasma. The apparatus has a hollow bladder having a flexible wall that is placed in contact with the bag. A circulation system draws fluid from a reservoir and fills the bladder with the fluid. The circulation system also drains fluid from the bladder. A heater in the reservoir heats the fluid before the fluid enters the bladder. As heated fluid flows through the bladder, heat is transferred through the bladder wall to the plasma bag to thaw the biological material. The bladder wall expands against the plasma bag as the bladder fills with fluid, and contracts from the plasma bag as the bladder is drained. The expansion and contraction of the bladder wall agitates the plasma bag and biological material to accelerate the thawing process.

An electric actuator Includes a first plate and a substantially parallel second plate. A linkage system couples the first plate to the second plate such that moving the linkage system toward an over-center position causes the second plate to move away from the first plate. An electric motor is coupled to the linkage system to move the linkage system toward the over-center position. A force transducer is coupled to the actuator to produce a force signal responsive to a force produced by the actuator. A control system is coupled to the electric motor and the force transducer to provide a control signal to the electric motor to move the linkage system to a position that was determined by the control system in response to the force signal in a previous movement of the linkage system.

The present invention provides a linear motor device that can reduce a variation in thrust caused by a variation in attractive force. The linear motor device includes a linear motor 1 and a control section 30 that controls the linear motor 1. The linear motor 1 includes a magnet member 2 composed of permanent magnets having respective N poles and S poles alternately arranged in an axial direction, and a coil member 3 which is located orthogonally to the axial direction with respect to the magnet member 2 and through which the magnet member 2 is movable in the axial direction relative to the coil member 3. The control section 30 controls current conducted through the coil member 3 so that a moving one of the magnet member 2 and the coil member 3 reciprocates within a use range L corresponding to a part of a pitch p between the magnetic poles N and S in the magnet member 2.

The invention discloses a jack hydraulic press, which belongs to the technical field of presses, and comprises a machine frame comprised of an upper beam, a lower beam, first and second trailing arms which are connected between the upper beam and the lower beam and longitudinally parallel to each other, a work rest arranged at the first trailing arm and the second trailing arm and corresponding to the space between the upper beam and the lower beam, a jack body arranged on the outer side of the first trailing arm or the second trailing arm, and an under-thrust device arranged at the upper beam and connected with a hydraulic circuit of the jack body. The jack hydraulic press is characterized in that: the upper beam is in a square structure which is closed on four sides and hollow along the up-and-down direction, the inner walls of a pair of wall bodies along the length direction of the upper beam are fixedly provided with a guide rail respectively, two guide rails are parallel to each other, and the under-thrust device is slipperily arranged on the guide rails. The jack hydraulic press has the advantages of saving operational labor, achieving high adaptability and reducing the labor intensity of the operator.

An apparatus comprising a platform, a stylus, and an ultrasonic energy generation system. The platform may be capable of holding a sheet of material. The stylus may be capable of impinging the sheet of material to incrementally form a shape for a part. The ultrasonic energy generation system may be capable of sending ultrasonic energy into at least a portion of the sheet of material in a location on the sheet of material where the stylus impinges the sheet of material.

A fixture having a bottom plate, top plate and an expansion block interposed between the bottom plate and top plate. A workpiece is positioned between the expansion block and bottom plate. When the fixture is heated, there is a net displacement exerted by the expansion block so as to apply pressure to the workpiece. The pressure applied by the fixture to the workpiece is due solely to the thermal expansion of the fixture when it is heated.

A screw press which can ensure the positional precision of the ram when the rotation amount of the press motor does not directly translate into the position of the ram because there is other machinery, such as a decelerator and the like, present between the motor (servo motor) and the screw mechanism, has a construction in which a position detection sensor, which detects the position of the ram, is provided, and the position of the ram is controlled by the output from this sensor.

The invention relates to a precise support rod type three-directional punching machine tool. The precise support rod type three-directional punching machine tool comprises a transmission shaft, an eccentric wheel arranged on the transmission shaft, a connecting rod with one end sleeving the eccentric wheel, an upper slide block arranged at the other end of the connecting rod, a horizontal punching device connected with the upper slide block, and a driving device connected with the transmission shaft. The precise support rod type three-directional punching machine tool adopts the eccentric wheel mode to drive the upper slide block to work; meanwhile, the horizontal punching device is connected with the upper slide block; the upper slide block is used for driving; one set of driving device is only adopted; and the precise support rod type three-directional punching machine tool is simple in structure, is lower in requirement on torque input by the driving device, and saves electricity.

A mechanical-hydraulic composite energy-saving servo hydraulic machine with a toggle rod mechanism comprises a work table which is fixed on a base. A machine body is of a three-beam and four-column structure, the four stand columns are hollow, pull rods penetrate through the inside of the stand columns, the two ends of each pull rod are fixed on an upper beam and the base respectively through tightening nuts, guide rails are fixed on the stand columns, and linear guide rail sliding blocks are fixed on the outer walls of press sliding blocks and slide up and down on the guide rails. By combining high control precision of a servo motor, high operation speed of a mechanical structure and large load of a hydraulic cylinder, idle stroke is driven by the independent servo motor and the mechanical structure, and work stroke is driven by a hydraulic system. The mechanical-hydraulic composite energy-saving servo hydraulic machine can lower power of the servo motor, improve the energy utilization rate and improve flexibility.