49results about How to "The production process is convenient and fast" patented technology

The invention discloses a counter-weight-free traction type inclined elevator, and belongs to the technical field of elevators. The counter-weight-free traction type inclined elevator comprises a pair of guide rails, an elevator cage, a stander, a traction machine, a tensioning weight and a rope returning wheel, wherein the guide rails are laid along the slope of a guide rail carrier; the elevator cage and the pair of guide rails form a rolling pair through the guide boots at the bottom of the elevator cage; the stander is arranged on a platform at the top of the slope, and upper and lower pulleys are arranged on the stander; when the traction machine is arranged on the stander, the tensioning weight is connected to the lower part of the traction machine or is wound by a cage traction rope under a state that the traction machine is separated; the rope returning wheel is arranged at the bottom of the slope; when the traction machine is arranged at the bottom of the slope, the rope returning wheel is removed, and a traction wheel is used as the rope returning wheel; both ends of the cage traction rope are connected with the lower part of the elevator cage, and the middle part of the cage traction rope is wound to the upper pulley, the traction wheel, the lower pulley and the rope returning wheel in sequence or wound to the upper pulley, the tensioning weight, the lower pulley and the traction wheel in sequence or wound to the traction wheel, the upper pulley, the tensioning weight, the lower pulley and the rope returning wheel in sequence. According to the counter-weight-free traction type inclined elevator, resources are saved, and the structure is simplified; the counter-weight-free traction type inclined elevator is convenient and quick to manufacture and mount, and the cost is reduced.

The invention discloses a concrete preparation device in the technical field of concrete preparation, the concrete preparation device comprises a base, a conveying belt, a first crushing assembly, a second crushing assembly and a screening box, a screening assembly and a material pushing assembly are arranged in the screening box, inclined discharging grooves are formed in the two sides of the interior of the screening box, and the outer side ends of the two discharging grooves are jointly connected with a material collecting pipe; materials are conveyed into the first smashing assembly to be smashed for the first time and then enter the screening box, the materials are screened through the screening assembly, and the materials which do not pass through screening are pushed to the two sides of the screening assembly through the pushing assembly and fall into the discharging groove, so that the situation that too much materials are accumulated on the screening assembly, and follow-up screening is affected is avoided; and the materials enter the second crushing assembly to be subjected to secondary crushing, the particle size of the materials is reduced, the materials which do not pass through screening can be recycled in time, the material transferring operation is reduced, and material preparation and treatment are faster and more convenient.

A wave foil die comprises a die base, a locating block, a cushion piece and a pressing block, a female die is formed on the die base, and a bent wave foil semi-finished product is arranged in the female die. The wave foil die further comprises a polytetrafluoroethylene sheet placed on the wave foil semi-finished product, a mandril of the pressing block and a center hole of the die base are coaxial, the pressing block is placed on the polytetrafluoroethylene sheet, one side face of the pressing block is attached to one side face of the locating block, the locating block is placed on a working face of the die base, a rectangular groove and a screw hole close to the rectangular groove are formed in the locating block, and the cushion piece is placed in the rectangular groove. The wave foil die further comprises an M4 inner hexagon screw and an M2 inner hexagon screw, wherein the M4 inner hexagon screw is inserted in the back face of the die base to connect the locating block and the die base into a whole, and the M2 inner hexagon screw is arranged in the screw hole and fixes a wave foil by pressing the cushion piece in the rectangular groove tightly. A flexible molding method is adopted in the wave foil, a male die for the wave foil die is not needed, and machining cost of the die is reduced.

The invention discloses a waste discharging device of a laser cutting machine. The waste discharging device comprises a car body, a plurality of guide wheels, pulley fixing seats, pulleys, wherein the surface of the car body is recessed, a handle is installed at one end of the car body, annular rubber tires are installed on the surfaces of the guide wheels, the guide wheels are symmetrically installed on two sides of the car body, the pulley fixing seats are installed on the bottom face of the car body, and rotating devices are installed between the pulley fixing seats and the car body, annular rubber tires provided with protrusions on the surfaces are installed on the surfaces of the pulleys, and the pulleys are installed on the pulley fixing seats. By means of the mode, the waste discharging device of the laser cutting machine is compact and simple in structure, small in size, convenient and fast to manufacture and install, low in cost, high in performance cost ratio and convenient to use and maintain.

The invention relates to a laser cladding forming device and a laser cladding forming method of a metal part. The device comprises a work bench in three-dimensional motion, a laser device, a wire feed device and a control system, wherein the wire feed device comprises a pinch roll wheel set, and the drive wheel of the pinch roll wheel set is connected with a stepping motor; the control system comprises a multi-shaft motion control card, and the multi-shaft motion control card is connected with the stepping motor, a work bench driving motor and the laser device respectively. The method comprises the steps of modeling, instruction conversion, sheet forming and deposition forming and the like. Metal wires are molten by laser to form molten drops, the molten drops are piled up and cooled on the work bench, sheets are formed along with the motion of the work bench, and all sheets are deposited layer by layer to form the three-dimensional metal part. The invention has low manufacturing cost, high forming efficiency, high part structure strength, high surface quality and wide application range.

The invention discloses a preparation device of sodium carbonate and ammonium sulfate by anhydrous sodium sulphate and a preparation method, and relates to the technical field of alkali preparation. The device comprises a reaction kettle (1), a temperature control box (2), a mixing tank (3), and an extracting mechanism (4) used for conveying middle fluid; the reaction kettle (1) is installed abovea bracket leg (5), and the temperature control box (2) is fixed on the bracket leg (5); the extracting mechanism (4) is connected with the reaction kettle (1) and the temperature control box (2). Themethod includes steps of step 1, raw material pretreatment; step 2, separation out of heavy metals; step 3, secondary adjustment of solution; step 4, replacement reaction; step 5, separation by crystallization. Through the device and the method, the temperature in reaction is more convenient to adjust and control; the preparation flow is more convenient and faster.

The invention discloses a manufacturing method for an injection molding alloy material hollowed-out checkered plate. The method includes the following steps that melt plastification is performed, an alloy material is heated to 220-250 DEG C, and then the alloy material in a molten state for standby application; injection molding is conducted, and the molten alloy material is injected into a mold within 8-10 seconds in an injection mode under the conditions that the pressure is 85-110MPa and the flow is 85%-90%; cooling and demolding are carried out, the mold filled with the alloy material is subjected to overall demolding after being cooled, and thus the hollowed-out checkered plate is obtained; and the melting point of the alloy material ranges from 170 DEG C to 220 DEG C. By the adoption of the manufacturing method, products can be obtained in the one-time injection molding mode, and the method is suitable for large-scale batch production. The obtained hollowed-out checkered product is lasting in color, non-toxic and harmless in material, safe, environmentally friendly and capable of being cleaned easily. The hollowed-out checkered plate cannot be deformed after being used for a long time, color fading is not likely to happen, and installation is convenient.

A stick curtain wall system suitable for dry construction, comprising: mullions (1), transoms (2) connected to the mullions (1), and panels (3) mounted on the mullions (1) and the transoms (2). Several joint accessories (4) and several first sealing strips (6) are provided within vertical gaps formed by the panels (3); the first sealing strip (6) is mounted between two adjacent joint accessories (4); a waterstop strip (9) is provided on the top of each panel (3), and a second sealing strip (10) is provided at the bottom of each panel (3); the joint accessory (4) is horizontally mounted on the tops of two adjacent panels (3) to partition the vertical gaps; both ends of the joint accessory (4) are in engagement joint with the ends of the waterstop strip (9); a sealing layer (5) sealably connected with the ends of the waterstop strip (9) is further provided on the joint accessory (4). The mounting approach of the stick curtain wall is greatly changed. The joint accessories (4), the sealing layers (5), and the first sealing strips (6) are organically combined with the second sealing strips (10) and the waterstop strips (9) to form specific waterstop, flashing, and draining structures, thereby effectively solving the water leakage problem, and practically implementing the dry construction of a stick curtain wall.