7results about How to "Improve injection precision" patented technology

This application relates to the field of injection molding technology for semiconductor packaging and testing products, and in particular to a plastic tray molding die structure. The upper die core has an upper forming hole protrusion on its lower surface, and the lower die core has a lower forming hole protrusion on its upper surface. In the closed state, the upper forming hole protrusion is in contact with the upper surface of the lower die core, and the lower forming hole protrusion is in contact with the lower surface of the upper die core. Both the upper and lower forming hole protrusions have stepped grooves in their middle sections, and pressure relief holes are formed at the bottom of the stepped grooves, extending out of the die body. The upper die core has a longitudinally arranged insert, into which a longitudinally movable abutting insert is embedded. In the closed state, the bottom of the abutting insert is in contact with the upper surface of the lower die core, and the top of the abutting insert abuts against the bottom of the clearance groove of the upper die base. In the open state, the upper die core moves upward, and the abutting insert, under gravity, can remain on the side of the lower die core and eject the molded product downward onto the lower die core. This reduces the scrap rate and improves injection molding accuracy and demolding reliability.

This utility model provides an eccentricity detection device and an injection mold for an air conditioning transmission assembly formed therefrom. The eccentricity detection device includes: a first detection component comprising M first sensors, which are spaced apart along the length of the rod; the M first sensors are located on a first detection line; a second detection component comprising N second sensors, which are spaced apart along the length of the rod; the N second sensors are located on a second detection line; the first and second detection lines do not coincide; M and N are both integers greater than 0; and a signal output component connected to both the first and second sensors. This application can determine whether the rod has experienced axial deviation by measuring the distance between the rod and the first or second sensor; the sensors of this application have a small footprint, are simple to operate, and can improve the efficiency and accuracy of rod axiality detection.

The invention relates to the technical field of injection molds, and discloses an anti-dislocation locking mechanism for double guide rings of an injection mold, the anti-dislocation locking mechanism comprises an injection fixing mechanism and an injection driving mechanism, the injection fixing mechanism and the injection driving mechanism are respectively mounted at the driving end of an injection device, and the inner wall of the injection fixing mechanism is connected with the anti-dislocation locking mechanism. According to the invention, through the anti-dislocation locking mechanism and the precise matching of a guide sleeve, a positioning gear ring, a positioning gear and a linkage mechanism, the precise and rapid positioning of a guide column in a guide hole is realized, and the dislocation of the mold caused by vibration or external force in the injection molding process is effectively prevented; the injection molding precision and stability are obviously improved; the generation of defects such as burrs is reduced, so that the defective rate is reduced, and the overall competitive product rate of products is improved; and due to stable locking, unnecessary abrasion of the mold in the injection molding process is reduced, the service life of the mold is prolonged, and the frequency and cost for replacing the mold are reduced.

The present application relates to injection mold technical field, disclose a kind of injection mold double-guide ring's mistake-proof locking mechanism, including injection fixed mechanism and injection drive mechanism, the injection fixed mechanism and injection drive mechanism are respectively installed in the drive end of injection device, the inner wall of the injection fixed mechanism is connected with mistake-proof locking mechanism, the injection fixed mechanism includes injection fixed die, the present application is through mistake-proof locking mechanism, utilize the precision fit of guide sleeve, positioning tooth ring, positioning gear and linkage mechanism, the accurate and rapid positioning of guide column in guide hole is realized, effectively prevent the mold misplacement caused by vibration or external force in injection molding process, significantly improve injection precision and stability;It reduces the generation of burr and other defects, thereby reducing the rate of defective products, improve the overall product quality rate;Stable locking reduces unnecessary wear of mold in injection molding process, prolongs the service life of mold, reduces the frequency and cost of replacing mold.

The utility model relates to the technical field of injection molding, in particular to a high-stability multicolor injection molding structure which comprises a protection box, a first injection molding module, a second injection molding module, a feeding pipe and a plurality of guide rods, the first injection molding module is fixedly installed at the right end of the protection box, and the edge of the left side of the first injection molding module is connected with the plurality of guide rods. The two feeding pipes are installed in the middle of the right side of the first injection molding module, the injection opening is connected with the feeding pipes, the second injection molding module is slidably connected to the guide rod, mold grooves are symmetrically formed in the left side of the first injection molding module front and back, and mold grooves are symmetrically formed in the right side of the second injection molding module front and back. Through the design of the crossed net ribs and the dovetail grooves, the stress stability of the mold groove is enhanced, color layer dislocation and waste material residues are reduced, and the injection molding precision and the production efficiency are improved; the operation process is simplified, the temperature is accurately regulated and controlled, and the product quality is improved.

The utility model discloses an injection oil cylinder for an injection molding machine, which comprises an oil cylinder and a piston rod, and the piston rod can extend into the oil cylinder and can move along the central axis of the piston rod in the oil cylinder; end covers are arranged at the two axial ends of the oil cylinder, so that a sealed oil cavity is formed in the oil cylinder; any end cover is connected with a displacement sensor, and the displacement sensor comprises a sensor connecting rod capable of extending into the oil cylinder; moreover, a position magnetic block capable of being matched with the sensor connecting rod is arranged at the end, close to the sensor connecting rod, of the piston rod, the position magnetic block and the piston rod move synchronously, and the displacement sensor outputs displacement signals of the piston rod by detecting magnetic field changes caused by movement of the position magnetic block. According to the utility model, the displacement sensor is directly integrated on the end cover of the injection oil cylinder, the structure is compact, the size of the whole device is reduced, and the installation space is saved; the device is compact in structure, high in measurement precision, strong in anti-interference capability and convenient to install and maintain.

The utility model discloses a kind of high-efficiency injection moulding jaw devices, including jaw mounting plate, the jaw mounting plate is connected with mobile module;Product jaw for clamping injection molding finished product and the pin needle jaw corresponding with the pin needle model required by injection molding are set on the jaw mounting plate, the pin needle jaw is set on quick-change tool plate, the quick-change tool plate is detachably connected between jaw mounting plate, the pin needle position corresponding with the pin needle jaw clamping on jaw mounting plate is set for the ejector pin mechanism for pin needle is worn into injection mold;The utility model can replace corresponding pin needle jaw according to injection molding demand by quick-change tool plate, to realize the simultaneous implantation of multiple pin needle, higher synchronism, applicable to mass production, help to improve injection molding efficiency and implantation precision.