37results about How to "Short pressing time" patented technology

Juice extraction using multiple pairs of juice extractors and comminutors which reduce the food pieces into successively smaller pieces with juice extraction occurring after each comminuting step. Coarse food pieces are pressed with extracted juice directed to a juice holding tank. The pressed coarse chop food pieces fall into the hopper of a second comminutor which performs a medium chop on the now pressed but still coarse chopped food pieces. The medium chopped food pieces are then fed from the second comminutor into the juice extraction chamber of a second juice extractor whereupon the medium chopped food pieces are pressed with extracted juice directed to a juice holding tank. Any number of comminutor and juice extraction pairs may be used in serial fashion to optimize the percentage of juice extracted in a minimum amount of time.

The invention discloses a high-speed impact pressing method for metal powder, which is characterized in that a die is arranged on a substrate first, a cavity is arranged on the die, a tower-shaped coil is fixed above the die, the tower-shaped coil is electrically connected with a discharge circuit, metal powder is filled in the cavity of the die, discharge processing is conducted to the tower-shaped coil, a pulsed magnetic field produced by the tower-shaped coil directly acts on the metal powder and the metal powder is pressed and formed. The invention has the advantages that the loading of impact stress waves to the metal powder is realized by using the action of electromagnetic force, the instant repetitive bidirectional compaction of the metal powder is realized by using the oscillation characteristics of the stress waves, the density of the pressed metal powder is high, the pressing time is short, the friction of the metal powder during pressing is reduced, the density distribution of the metal powder is even, the sintering shrinkage rate is reduced and the precision and the performance of parts are improved.

The invention discloses a thin type key switch. The thin type key switch comprises a panel shell and a base, wherein the panel shell is buckled on the base; a first slot position used for placing a contact chip and a second slot position used for placing a sounding part are arranged in the base; and the first slot position and the second slot position are both positioned in the side part of the base. The thin type key switch has the advantages of low height, uniform stress, long service life, bottom light transmission, good user experience and the like.

A decorative board is prepared from the used fabric blocks (60-80 wt.%), waste plastics (20-40 wt.%), and thermofusible fibres (0-20 wt.%) through preparing plastic fibres from waste plastics, mixing with others, making felt, heating in oven, and cold pressing. Its advantages are short period and low energy consumption.

The invention relates to a manufacturing method of pressure filtration separation filter cloth for direct flotation separation tailings for bauxite and aims at solving the problem that the amounts of suspended matter in water and a filtrate of the separation tailings are large. A first layer is polypropylene multifilament plain woven filter cloth which is a square, fixed edges are formed in the upper and lower edges and the left and right side edges of the square respectively, trapezoidal grooves are formed in the centers of the fixed edges at the left and right sides respectively, fixed holes are formed in the upper fixed edge and the fixed edges at the left and right sides respectively, a circular center hole is formed in the center of the square, a second layer is arranged on the first layer and consists of interior and exterior parts, the exterior part is a square ring, the interior part is a circular ring arranged in the center of the exterior part, the edges of the square of the first layer and the edges of the square ring of the second layer are aligned to each other and sewn together by virtue of a four-wire sewing machine, and the circular ring of the second layer is arranged on the periphery of the circular center hole of the first layer and is sewn together with the periphery of the circular center hole of the first layer by virtue of a three-wire sewing machine. According to the manufacturing method disclosed by the invention, the amounts of suspended matters in the water and the filtrate of the separation tailings both meet the production requirements, the squeezing time is short, and the working efficiency is high.

The invention discloses a multi-roll continuous press dehydrator which comprises a stander, a power device and a transmission device, wherein the transmission device is provided with an input shaft and more than two rows of output shafts which are arranged up and down; the input shaft is connected with the power device; the stander is provided with more than two rows of pressing rolls (11) corresponding to the output shafts; the pressing rolls (11) are connected with the output shafts; and the upper and the lower rows of pressing rolls which are adjacent to each other are in rolling in a roll-to-roll rotating relay way. The multi-roll continuous press dehydrator can be used for reasonably rolling for a plurality of times by a limited number of pressing rolls. As the contact area between the two rolls is small, the multi-roll continuous press dehydrator has the advantages of high pressing force and short pressing time, leads the discharge moisture content to be lower, improves the mud cake content and the solid content, lowers the tension requirement for filter cloth, prolongs the service life of the filter cloth, reduces the volume of a machine, and ensures the structure to be more compact.

The invention belongs to the technical field of copper-clad laminate preparation, and in particular relates to a glue drying device for copper-clad laminates, including a traction bracket and a drying box; There are protrusions integrally formed, and the top of the right side of the traction bracket is integrally formed with oblique support blocks with low left and high right. Gluing components are installed between the two front and rear facing protrusions, and the two front and rear facing oblique support blocks There is also a gluing assembly installed between them. The gluing assembly includes a gluing motor, a gluing roller, a fixing plate and a glue storage box. The fixing plate is fixed on the power output shaft of the gluing motor, and the glue storage box is installed on the fixing plate. , the rear end of the power output shaft of the gluing motor is driven with a sleeve shaft, the gluing roller is sleeved on the sleeve shaft and fixed with the sleeve shaft, and the first bearings are fixedly installed at both ends of the sleeve shaft.

The invention relates to a powder compacting device based on electromagnetic pulses. The powder compacting device comprises a power supply unit, a fixing unit and a compacting unit. The powder compacting device is characterized in that the power supply unit is composed of a charging circuit and a pulse discharging circuit, the charging circuit is composed of a high-voltage transformer (10), a charging resistor (11) and a high-voltage rectifier (12), and the pulse discharging circuit is composed of a capacitor set (13). Since pressure used in the electromagnetic pulse radial powder compacting process is radial force distributed evenly and is evenly distributed in the circumferential direction and the axial direction, the powder compacting device is suitable for forming axisymmetric shaft parts, pipe parts and gear parts.

The invention relates to a manufacturing method for bauxite direct flotation concentrate press-filtering and separation filter cloth, and aims at effectively solving the problem that the contents of moisture and filtrate suspended matters are too high. A first layer and a second layer on the first layer are overlapped together and are square; fixed edges are arranged at the upper and lower side edges and left right side edges of the square shape; trapezoid grooves are formed in the centers of the fixed edges of the left and right sides; fixed holes are formed in the upper fixed edge and the fixed edges of the left and right sides; a round central hole is formed in the center of the square shape; a third layer is arranged on the second layer and is composed of inner and outer parts; the outer part of the third layer is in a square annular shape, and the inner part of the third layer is a circular ring arranged at the center of the outer part; the first layer and the second layer are aligned to the edge of the third layer, and are sewed by a four-line sewing machine; and the circular ring of the third layer is located on the periphery of the round central hole of the second layer and is sewed by a three-line sewing machine. By virtue of the manufacturing method, the problem that the contents of the moisture and the filtrate suspended matters of concentrate are too high is solved, the squeezing time is short and the working efficiency is high.