43 results about "Silicone injection" patented technology

The invention discloses two-component liquid silicone injection-molding complete equipment which aims to solve the technical problem that the equipment needs to precisely inject two-component liquid silicone materials. The two-component liquid silicone injection-molding complete equipment comprises a main machine and a charging system, wherein the main machine comprises a template assembly, an injection mechanism, a sliding plate mechanism, an upper mold, lower left and right molds, a cold runner mechanism, an ejection mechanism, an electrical cabinet arranged at the right rear part of a rack, an electrical cabinet, an operating electrical cabinet, an oil box, a positioning system, a fast cylinder, a main oil way board and an injecting oil way board. The rear part of the electrical cabinet is connected and fixed with the right side surface of the rear part of the oil box. Compared with the prior art, the two-component liquid silicone injection-molding complete equipment is in a vertical machine structure, comprises the ejection mechanism, the cold runner mechanism, the sliding plate mechanism, the injection mechanism, a charging mechanism, a metering mechanism, a positioning mechanism and the template assembly, and carries out simultaneous injection-molding for A and B agent liquid silicone, and can greatly improve the production efficiency.

The invention discloses a technology integrating 3D printing and silicone injection molding of an individualized airway stent mold.The technology achieves preparation of individualized medical airway stents.According to the technology, a real airway model of a patient is extracted and reestablished based on a CT image of the patient, then the individualized airway stent mold is obtained based on the model through computer aided design and the 3D printing, and finally the individualized airway stent conforming to the airway structure of the patient is prepared through silicone casting so as to reduce the risk of airway restenosis.

Silicone is placed between an upper die and an injection-pressing rubber-lid upper die, and the silicone injection passage is pressurized by the injection-pressing rubber-lid upper die. With this, the silicone is caused to flow into an injection port through the silicone injection passage. Then, sequentially through the injection port and the disc silicone-flow passage, the silicone is caused to flow toward an inner periphery of a silicone injection space. Further, the silicone flows between both circumferential sides of the silicone-flow deflection region. In this way, the silicone flows in a peculiar manner in conformity with a shape of the silicone-flow deflection region.

The invention belongs to the molding technology field and is an improvement of the prior art, relating to a processing method for a sprinkler watering plate. After the injection pressure of a liquid silicone injection molding machine, a molded product is selected from a molding die-blank. The molded product is removed from a large rough edge of a frame artificially. The molded product without rough edges is removed from burrs, flying edges and rusty spots through levigation. The molded product after levigation is tested through water testing and then the qualified product is packaged. The invention has the advantages mentioned below. First, the invention adopts the liquid silicone mine, which belongs to a natural environmental material and does not mildew, so that it avoids a mildewing of a traditional rubber and a bad effect to human health. Second, adopting the injection molding leads to a product with stable quality, and saves time, energy and material resource. Third, the invention has a wide applicable range and a strong practicability. The use of liquid silicone for the molded watering panel is a future trend of the sprinkler product. The processing method can be widely used.

The invention discloses a preparation technology of a reinforced silicone airway stent. The preparation technology of the reinforced silicone airway stent comprises the following steps: in an environment at the temperature of 37 DEG C, placing a woven nickel-titanium memory alloy annular skeleton into a mould before injection moulding of a silicone stent, wherein the thickness of the wall surface of the silicone stent is 1-1.5mm, and the distance between a metal wire as well as an outer wall surface and an inner wall surface is 0.3-0.5mm; and fixing the head and the tail of the mould by utilizing an extended metal wire, and carrying out silicone injection moulding, wherein an anti-slip circular projection is arranged outside the silicone stent, the projection is located at a depression of an airway cartilaginous ring, and the projection thickness is 1-2mm. The reinforced silicone airway stent disclosed by the invention is in a contraction state before being implanted into a human body and can be expanded to predetermined dimensions in the environment at the temperature of 37 DEG C after being implanted into an airway of a patient. Therefore, the advantages of the silicone support are reserved, and radial supporting strength is also enhanced.

The invention relates to a miniaturized liquid silicone molding machine suitable for a three-plate mold, including an electric box, a frame, a pneumatic three-axis manipulator, a gas-liquid pressurized cylinder, a fixed plate, a front push plate, an ejection cylinder, a middle push plate, Connecting column, front platen, middle platen, rear platen, guide sleeve, guide post and liquid silicone injection unit, the gas-hydraulic pressurized cylinder drives the front platen, middle platen to move and rear platen to close the mold, and the liquid silicone injection unit injects into the cavity Liquid silicone, the product is formed in the cavity, the gas-hydraulic booster cylinder drives the front template, the middle template moves backward and the rear template is split, and the ejector cylinder drives the middle template forward to pull out the formed product, and the pneumatic three-axis manipulator grips and molds The final product does not require manual operation in the whole process, has a high degree of automation, optimizes the structural layout design, shortens the front and rear template clamping strokes, is light and compact in size, miniaturized design is convenient to carry, does not occupy space, speeds up production, expands the scope of use, and meets the needs of customers. need.

The invention discloses a liquid silicone rubber injection mould. The liquid silicone rubber injection mould comprises an upper mould and a lower mould, wherein a lower mould cavity for holding a plastic piece to be machined is formed in the lower mould. The liquid silicone rubber injection mould is characterized in that the upper mould consists of a first upper mould and a second upper mould; an upper mould cavity is formed in the bottom of the first upper mould; the second upper mould is fixedly arranged inside the upper mould cavity; the adhesion part of the lateral wall of the second upper mould and the inner lateral wall of the upper mould cavity is used as a mould joint; a sealant face is formed at the periphery of the upper mould cavity and on the upper edge of the first upper mould; the sealant face and the plastic piece are tightly adhered to form a sealing area for injecting silicone rubber in a mould closing process. According to the liquid silicone rubber injection mould, the adhesion part of the lateral wall of the second upper mould and the inner lateral wall of the upper mould cavity is used as the mould joint, so that one part of the silicone rubber piece is individually machined. Therefore, not only can the machining difficulty be reduced, but also air discharge can be realized through the middle joint and the mould repairing and modification in a later period are convenient. According to the liquid silicone rubber injection mould, the injection effect of silicone rubber is good, and the quality of products in scale production is stable and reliable.

The invention discloses a silicone ejection oil pressure molding machine which comprises a machine frame, a storage device, a feeding device, a molding mould, a control device and a power supply. A first cavity is arranged in the storage device, the feeding device is provided with a channel, and the first cavity is communicated with the channel. The silicone ejection oil pressure molding machine is characterized by comprising an accurate injection device which is provided with a second cavity, one end of the second cavity is communicated with the channel, the other end of the second cavity is communicated with an injection hole of the molding mould, and the accurate injection device is provided with a monitoring device for monitoring silicone injection amount. By adopting the structure, the silicone ejection oil pressure molding machine can perform accurate injection voluntarily by adopting the accurate injection device, achieves automation of a whole production process of seal rings, reduces labor intensity of operators, and can improve production efficiency.

The invention discloses a manufacturing method of a novel displacement-preventing water guide silicone tube placed in the brain. The manufacturing method of the novel displacement-preventing water guide silicone tube placed in the brain includes the following steps that firstly, a die is manufactured according to the drawing design; secondly, liquid silicone injection forming is conducted; thirdly, thermoset liquid silicone rubber (LSR) is divided into an A component and a B component, a cross-linking agent (containing hydrogen silicon oil) and a catalyst (containing platinum) are separated and are put into the two components correspondingly, and the A component and the B component are then mixed during use; fourthly, before each time of injection molding, rubber materials of the A component and the B component are put on a rubber mixing machine to be evenly mixed and then are put into an injection molding cavity immediately, under the pressure effect of a press machine, the rubber materials pass through a runner and flow into a six-hole die, then heating and pressurizing vulcanization is conducted, and the silicone rubber thin-wall micro rubber tube is manufactured; fifthly, a formed support is subjected to edge demounting and trimming; and sixthly, a laser punching machine is used for punching the formed support. The manufacturing method of the novel displacement-preventing water guide silicone tube placed in the brain is simple in technology and low in cost, and the manufactured silicone rubber tube is proper in hardness and not likely to be aged and can be applied to the field of hydrocephaly drainage surgeries at a large scale.

The urisheath provided here includes an element of thin material (a strip) that allows at least two lengths of it to run in a parallel fashion down either side of the sheath. The is obtained by injection moulding the strip in liquid silicone in the silicone injection moulding process for the urisheath, either by one, two or more component injection moulding. The injection moulding takes place in an injection moulding form for a urisheath with a cavity for the body portion and a cavity for the strip portion wherein the cavity for the body portion is connected to the cavity for the strip portion creating an attachment zone between the strip and the sheath.

The invention relates to an electromagnetic wave shielding paint selective spraying device having a jig including a plurality of individually detachable core plates, a machine tool (20) made of a plurality of silicone resin molds (10) for housing a mobile phone body shell (P), synthetic resin material ) and fixtures. Wherein, the machine tool (20) has a plurality of silicone resin injection grooves (21), the silicone resin injection groove has a plurality of exhaust holes (22) with a narrow upper and a wider lower structure, and the bottom of the machine tool has 4 support rods (25 ), a pair of pads (29) with a plurality of nut holes (39) are respectively inserted on both sides; a pair of clamping plates (31) are formed on both sides above the clamp, and a pair of clamping plates (31) are formed in the center along the quadrilateral periphery on the back side. The opening (33) of the lower step (34) of each screw hole (36), a plurality of core plates (40) with an open portion (41), a closed portion (42) and a closed portion support platform (43) are arranged up and down with a The upper steps (44) of a plurality of screw holes (36) are connected to the screw holes 36 by screws.