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49results about How to "Reliable ejection" patented technology

Inclined guide pillar slide block type secondary demolding mechanism of injection mold

The invention relates to an inclined guide pillar slide block type secondary demolding mechanism of an injection mold. The secondary demolding mechanism mainly comprises a mold cavity and a core insert, wherein a core plate is mounted outside the core insert; a stripper plate is arranged on the core plate; a molded product is formed among the mold cavity, the core insert and the stripper plate; convex ribs are arranged at the bottom surface of the product; the stripper plate matches the convex ribs of the product; the core insert and the core plate are mounted on a core fixing plate; a mold feet are mounted below the core fixing plate; lower templates are mounted below the mold foot; an upper ejector plate and a lower ejector plate are arranged between the mold feet; the upper ejector plate is connected with an ejecting pillar, which is connected with the stripper plate after penetrating through the core fixing plate and the core plate; the demolding mechanism is characterized in that an I-shaped groove is formed in the upper ejector plate, a slide block is arranged in the I-shaped groove, the head part of the slide block is made as an inclined surface, an inclined guide rod is connected below the core fixing plate and penetrates through the slide block, an ejector rod is mounted in the core insert, the head part of the ejector rod is in contact with the bottom surface of the product, and an arc surface is made at the bottom of the ejector rod, and the arc surface matches with the inclined surface of the slide block.
Owner:ZHEJIANG KAIHUA MOLDS

Deep hole punching method and deep hole punch head thereof for large forging

The invention discloses a deep hole punching method, which comprises the following steps of (1) heating a steel ingot; (2) discharging a forging blank, wherein the cutting amount of the head end is equal to the 16-20% of the weight of the steel ingot, and the cutting amount of the tail end is equal to the 8-12% of the weight of the steel ingot; (3) upsetting and drawing the forging blank, wherein the forging blank is upset and drawn to form a forging; (4) performing primary punching, wherein the press-down amount of a punch head is equal to 30% of the depth of a finished hole; (5) performing secondary punching, wherein the end of the punch head is applied with combustible matter and then is pressed down; (6) performing third punching, wherein the end of the punch head is applied with the combustible matter and then is pressed down; (7) trimming a hole; (8) performing heat treatment after forging. A deep hole punch head comprises a punch rod, wherein the punch rod is a cylindrical rod, the front end of the punch rod is a semispherical end, and a finishing ring is arranged on the punch rod, and is separated from the semispherical end. The deep hole punching method has the advantages that the production efficiency is high, the internal tissues are uniform and dense, and the utilization rate of materials is high. The deep hole punch head has the advantages that the structure design is skillful, the hole forming accuracy is high, and the quality is high.
Owner:SHANGHAI XINMIN DONGTAI HEAVY FORGING

Capping plug injection mould and capping plug injection moulding method

The invention discloses a capping plug injection mould and a capping plug injection moulding method. The capping plug injection mould comprises a lower mould base plate, bearing feet, a bearing plate, a mould core fixed plate, a Haff fixed plate, a small mould core fixed plate and an upper mould base plate from bottom to top. A Haff structure with a thread forming cavity is arranged in the Haff fixed plate and is composed of two pieces of Haff, and a mould core and a small mould core are correspondingly arranged. The mould further comprises a secondary push-off device composed of a first pushing rod fixed plate, a second pushing rod fixed plate, a third pushing rod fixed plate, a pushing rod, a conical pushing rod and a sprue puller, and a swing hook mechanism composed of a swing hook reset plate, a swing hook, a guide rod and a spring is arranged on the secondary push-off device. The injection moulding method comprises mould assembling, injection moulding, cooling, and mould opening ejection. According to the mould opening ejection step, secondary ejection is achieved under matching of the swing hook mechanism. According to the injection mould and the injection moulding method, the mould is simple, demoulding is easy, and injection moulding and mould opening can be achieved without a dedicated injection molding machine.
Owner:林章辉

Pot seedling ordered seedling separating device

The invention discloses a pot seedling ordered seedling separating device, which comprises a transmission mechanism, a fluted disc driving type seedling disc conveying mechanism, a seedling disc compression mechanism and a pot seedling propping mechanism, wherein the transmission mechanism respectively transmits motive power to the seedling disc conveying mechanism and the pot seedling propping mechanism through a group of bevel gear transmission devices and several groups of cylindrical gear transmission devices, the fluted disc driving type seedling disc automatic conveying mechanism consists of an upper seedling disc driving wheel, a lower seedling disc driving wheel and a guide rail, the upper seedling disc driving wheel and the lower seedling disc driving wheel are driven by a synchronous belt and are both fluted discs with rectangular teeth, wheel teeth are rightly embedded into tooth grooves arranged at two sides of a seedling disc, and the seedling disc is driven to feed; and the guide rail realizes the compression and guide effects on the seedling disc. The seedling disc compression mechanism mainly consists of a regulating handle and a disc pressing wheel. The pot seedling propping mechanism consisting of a cam, a lever and a propping rod props out rice pot seedlings fed into a seedling disc pot bowl by the seedling disc driving wheels and the guide rail. The pot seedlings fall into the field along with a seedling guide pipe, and the seedling disc is continuously driven by the lower seedling disc driving fluted disc to be conveyed and disengaged into a recovery frame arranged on a machine frame.
Owner:ZHEJIANG SCI-TECH UNIV

Spot welding assembly tool clamp for roller cage shoe base lug ring assembly

The invention belongs to the technical field of mine mechanical making equipment, and relates to a spot welding assembly tool clamp for a roller cage shoe base lug ring assembly. Three hydraulic cylinders on a sleeve middle positioning pin assembly, a sleeve rear positioning pin assembly and a sleeve front positioning pin assembly precisely position a lug ring rear single ring and a lug ring frontsingle ring, a front side plate rapid clamp, a left side plate rapid clamp, a right side plate inclined pressing rapid clamp, a left side plate inclined pressing rapid clamp and a rear side plate rear hook rapid clamp use dead points of a plane four-rod mechanism or a guide rod mechanism for pressing and positioning all side plates, and a turnover disc rotates by half circle to facilitate weldingof the inner side welding line. Compared with giant manual hydraulic pressure, it can be ensured that the lug ring rear single ring and the lug ring front single ring can be precisely positioned, andmold retreating can be facilitated; the tool is used for determining the relative size of the workpiece, compared with marking line scribing, the size determining is more precise, the produced part is unified in size, labor force is reduced, work efficiency is improved, the work principle of the dead points of the rapid clamps is used, use is convenient, the pressing force can be increased, and work efficiency is improved.
Owner:HEFEI LONGTUTEM INFORMATION TECH CO LTD

Nozzle arrangement for an edge strip applying device for supplying hot air to an edge strip or workpiece which is adhesive-free and can be activated by heat or which is coated with a hot-melt adhesive, and edge strip applying device comprising a nozzle arrangement

The invention relates to a nozzle arrangement (1) for an edge strip applying device for supplying hot air to an edge strip (2) or workpiece which is adhesive-free and can be activated by heat or which is coated with a hot-melt adhesive, comprising a nozzle body (3) with - at least one air inlet channel (20, 21) which can be connected to a hot air generator such that pressurized hot air can be fed to the nozzle body (3) during the operation of the edge strip applying device, - at least two groups (4a, 4b, 4c) of air outlet openings (40), wherein the air outlet openings (40) are formed on an air outlet surface (30) of the nozzle body (3) at a distance from one another in the vertical direction, said outlet surface facing the edge strip (2), and are fluidically connected to the at least one air inlet channel (20, 21) such that the at least two groups (4a, 4b, 4c) of air outlet openings (40) are spaced from one another in the advancing direction of the edge strip (2) and the hot air fed to the nozzle body (3) can be discharged out of the air outlet openings (40) and supplied to an edge strip (2) functional layer which can be activated by heat, and - a number of closing organs (6, 6') which are designed such that at least some of the air outlet openings (40) can be optionally opened or closed dependent on the width of the fed edge strip (2), said number corresponding to the number of groups (4a, 4b, 4c) of air outlet openings (40).
Owner:霍尔根·克卢格
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