10results about How to "Prevent bridging" patented technology

This disclosure relates to a semiconductor packaging apparatus and a method for manufacturing the same. The semiconductor packaging apparatus includes: a first circuit layer with a first conductive element disposed on its surface; a second circuit layer with a second conductive element disposed on its surface; the first conductive element and the second conductive element are electrically connected via at least two connecting lines. This semiconductor packaging apparatus effectively avoids problems of electrical connection disconnection and bridging between adjacent conductive elements, effectively reducing the risk of electrical connection failure between circuit layers and thus improving product yield.

This invention discloses a feeding device for the production of hydroxyapatite powder, aiming to solve the problems of uneven feeding, clogging, and dust pollution caused by the poor flowability and easy agglomeration of this type of powder. The device includes a frame, a feeding channel, a crushing device and a dust removal assembly located within the channel. The crushing device includes a fixed rod and a movable crushing shovel driven by a drive assembly, effectively preventing material bridging and agglomeration through active, reciprocating crushing action. The dust removal assembly includes a suction chamber, a filter screen, and a cleaning roller brush. When the crushing shovel moves, this mechanism can be periodically actuated, driving the cleaning roller brush to automatically clean the dust accumulated on the filter screen. This invention cleverly combines active crushing with a mechanically linked self-cleaning dust removal function, eliminating the need for an additional power source for the cleaning function. Its compact structure enables uniform, stable, and dust-free feeding, effectively improving production efficiency and environmental quality.

The utility model discloses an anti-blocking and anti-hanging blanking groove device which comprises a blanking groove body, the top of the blanking groove body is connected with a feeding hopper, the bottom of the blanking groove body is connected with a discharging groove, and a discharging groove is formed in the blanking groove body. The anti-blocking assembly is arranged between the discharging groove and the discharging groove body, and the anti-blocking assembly comprises an equipment box, a gear motor, a driving rod, a cam and a movable plate; and the material hanging prevention assembly is arranged in the discharging groove body, and the material hanging prevention assembly comprises a heating cavity, a heater, an equipment cavity and an air extracting pump. According to the utility model, through the arrangement of the anti-blocking component, the area of the discharge port area is dynamically changed, the caked materials are extruded and sheared, the crushing capacity is enhanced, the materials are prevented from bridging, through the arrangement of the anti-wall-hanging component, the materials are kept dry, the flowability of the materials is improved, and the adhered materials are continuously stripped in cooperation with a wall-adhering airflow layer blown out by the flat nozzle.

This invention discloses a loss-in-weight scale for improving weighing accuracy; relating to the field of loss-in-weight scale technology, it includes a support frame, a tank, and a tank cover. Multiple equidistant pressure sensors are installed on the periphery of the top surface of the support frame. A quantitative transmission mechanism is provided at the lower end of the tank, and a balancing component is installed on the upper end of the tank cover. This invention significantly improves weighing accuracy through the symmetrical arrangement of pressure sensors and a stable force transmission structure. Multiple equidistant pressure sensors installed on the periphery of the top surface of the support frame are rigidly connected to the tank through a positioning plate, ensuring that the weight of the tank is evenly transmitted to each sensor, avoiding detection deviations caused by single-point force. Simultaneously, the fixing effect of the positioning plate reduces interference from tank shaking to the sensors, making the weight signal more stable. The quantitative transmission mechanism of this invention achieves stable material transport through the synergistic effect of stirring and double-headed spiral pushing. By optimizing the material diversion and guiding structure, residue inside the tank and transport deviations are reduced, further improving measurement accuracy.

This invention relates to the field of plastic recycling technology, and specifically discloses a twin-screw extruder for granulation of recycled waste plastics. The extruder includes a working platform, a first motor fixedly connected to the top of the working platform, a first drive gear fixedly connected to the drive shaft of the first motor, and first driven gears meshing on both sides of the first drive gear. A mounting beam is fixedly connected to the top of the support frame, and an electrostatic separation device is connected through and fixedly to the top of the mounting beam. An extrusion device is connected through and fixedly to the end of the barrel furthest from the first motor. This twin-screw extruder for granulation of recycled waste plastics is equipped with a quantitative feeding device to prevent material accumulation and bridging, thus improving production stability. The electrostatic separation device removes impurities from the material, preventing screw wear caused by impurities and reducing safety hazards.

This utility model relates to the technical field of melamine tableware production equipment, and discloses a quantitative feeding device for raw materials in melamine tableware production. The device includes a base plate, a discharge pipe fixedly connected to the top of the base plate via a support block, a spiral feeding rod fixedly connected to the left side of the first drive rod, a discharge port on the left side of the discharge pipe, a load-bearing plate fixedly connected to the top of the base plate, and an annular baffle fixedly connected to the top of the load-bearing plate. In this utility model, by starting the first servo motor, the spiral feeding rod transports the powder raw material along the conveying pipe to the discharge port, where it falls into the load-bearing plate. A weight sensor detects the weight of the powder in the load-bearing plate in real time. Once the set value is reached, the device stops working, completing one quantitative feeding cycle. This utility model uses a controller to open a solenoid valve and simultaneously starts the second servo motor, causing the stirring rod and scraper to rotate, preventing powder bridging, clumping, and adhesion to the walls, ensuring that the powder falls smoothly into the conveying pipe.

A method for manufacturing a semiconductor device includes: providing an interlayer dielectric layer, with a core layer formed above the interlayer dielectric layer; etching the core layer to form an opening penetrating the core layer; forming sidewall layers on sidewalls on both sides of the opening along a first direction; forming a fill layer between the sidewall layers to fill the opening, the fill layer being made of a different material than the sidewall layers; etching the core layer and sidewall layers on both sides of the fill layer along the first direction to form a first metal line pattern truncated by the fill layer in the core layer, the first metal line pattern extending along the first direction; and etching the interlayer dielectric layer based on the core layer to form a first trench having a truncated region. This invention enables the achievement of smaller end-to-end truncation dimensions for metal lines.

This invention relates to the field of powder conveying equipment technology. It comprises a silo bottom plate, a geared motor, an output shaft, a support sleeve, a skeleton sealing ring, a conical activator, a flange, stirring blades, and a discharge port. The geared motor is installed at the bottom of the silo bottom plate. A hole is formed in the center of the silo bottom plate, and a support sleeve is fixed inside the hole. A skeleton sealing ring is installed between the support sleeve and the silo bottom plate. The output shaft of the geared motor passes through the support sleeve and is rotatably connected to the support sleeve via a bearing. A flange is fixed to the output shaft, and a conical activator is fixed to the flange. Several stirring blades are fixed to the outer circumference of the flange. Several discharge ports are provided on the silo bottom plate. The conical stirring anti-bridging device of this invention, with its conical shape of the conical activator combined with the stirring rotation of the blades, effectively prevents material bridging, exhibiting excellent anti-bridging effect, thus making material conveying in automated conveying equipment such as pneumatic conveyors or screw conveyors smoother.

This invention discloses a silent scrubbing method for exhaust gas from the production of phosphorus-nitrogen flame retardants, belonging to the field of phosphorus-nitrogen flame retardant production. The method includes the following steps: S1, the exhaust gas after dust removal enters the primary scrubbing tower tangentially from the bottom, is scrubbed by the sprayed liquid to form post-primary scrubbing exhaust gas, and exits the primary scrubbing tower tangentially from the top; S2, the post-primary scrubbing exhaust gas enters the secondary scrubbing tower tangentially from the bottom, is scrubbed by the sprayed liquid to form post-secondary scrubbing exhaust gas, and exits the secondary scrubbing tower tangentially from the top. This invention removes ammonium polyphosphate dust entrained in the preceding exhaust gas, improves the ammonia absorption rate in the exhaust gas, and reduces noise.

This invention discloses a method for preparing whisker masterbatch for polyolefin foam materials and the whisker masterbatch itself. The method includes: adding whiskers, lubricants, dispersants, and coupling agents in a set ratio to an air-blast powder activation machine, and activating them under set conditions until fully activated whisker semi-finished products are obtained; introducing the whisker semi-finished products and polyethylene resin into a twin-screw continuous internal mixing extruder with a grinding surface and hot cutting in a set ratio, mixing and extruding, and cutting into particles by grinding surface hot cutting; subjecting the particles extruded from the twin-screw continuous internal mixing extruder to three-stage air cooling and then to vibrating sieve sorting to finally obtain whisker masterbatch for polyolefin foam materials. This invention solves the problems of easy screen clogging when whisker masterbatch is used as a polyolefin foam material in the prior art, as well as the problems of uneven foaming, rapid softening speed, and insufficient cell stiffness in polyolefin foam materials.