Extrusion connecting device for non-flaring guide tube connector

Abstract

The invention discloses an extrusion connecting device for a non-flaring guide tube connector. The extrusion connecting device comprises a hydraulic system, a clamping mechanism, a stretching mechanism, an anvil mould, semi-female moulds and a pull rod assembly, wherein an adapter head driven by the stretching mechanism is connected to the pull rod assembly; the anvil mould is detachably fixed onto a base foundation through an anvil mould base; the anvil mould is provided with cylindrical mould cavity structures which are sequentially arranged and are provided with four-grade diameters; the semi-female moulds are symmetrical structures which are formed by combining two semicircular rings, and are detachably mounted and fixed in clamping arm half holes of a clamping mechanism for clamping and fixing the guide tube connector during closing; and a mould closing gap is formed in a combined part while the two half circular rings are combined to clamp and fix the guide tube connector. The extrusion connecting device can effectively reduce labor intensity of an operator, can achieve self-adaptive clamping for dimension difference of different workpieces of the same theoretical specification, and can overcome the gap glue overflow problem of the pull rod and the inner diameter of the guide rod, so that quality of produced products is improved, the problem that mould is troublesome to replace is solved, and processing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and manufacture, in particular to the technical field of extrusion molding processing machinery design and manufacture, and particularly relates to an extrusion coupling device of extrusion molding equipment for a non-flared conduit connector. Background technique [0002] In the prior art, the connection of the catheter connector is usually made by sealing a compressible elastic material with a certain volume, such as polyurethane material, in the processing space, and after it is extruded to an incompressible stage, the catheter is deformed by polyurethane It is partially extruded to produce plastic deformation, and the plastic deformation is squeezed into the inner ring groove of the guide sleeve on the catheter, so that the catheter and the guide sleeve are tightly connected. [0003] Chinese patent document CN 208930714 U discloses an extrusion molding machine for non-flared conduit...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent document CN 208930714 U discloses an extrusion molding machine for non-flared conduit connectors, wherein the expansion mechanism of the extrusion molding machine includes a pull rod assembly, a mold assembly, and a clamp mechanism; the pull rod assembly includes a pull rod, a sleeve On the rubber sleeve of the pull rod, one end of the pull rod is provided with an annular rib for blocking the rubber sleeve, and a movable bush is arranged on the pull rod and on the side of the rubber sleeve away from the rib; the mold assembly includes two capable The half-clamps, mold guide sleeves and positioning sleeves that are interlocked with each other fix the pipe sleeves inside the half-clamps, the conduit can be inserted into the pipe sleeves, the positioning sleeves are installed in the cavity of the half-clamps, and the mold guides The sleeve is installed on the end of the main oil cylinder, the positioning sleeve is used to be sleeved on the outside of the movable bushing, and the mold guide sleeve is used to withstand the positioning sleeve and the movable bushing; the clamp mechanism is used to clamp the mold assembly. In terms of specific implementation, there are obvious defects: First, in this mold clamping and locking method, the upper and lower clamps rely on their upper and lower mating surfaces to uniquely determine the clamping position, so the positions of the upper and lower clamps are always the same, but in fact, the same theory Individual workpieces with different specifications will have differences in structural dimensions, and their outer diameters may be large or small, which will cause some processing problems, such as interfering with the mold, affecting the mold clamping and causing the product to be pinched, or the clamp is not tight, There is a gap between the workpiece and the inner cavity of the half-clamp mold located in the clamp, which cannot play a supporting role, so that during processing, the tube sleeve in the workpiece combination is squeezed and deformed by the internal expansion force of polyurethane and is unqualified; Second, the mold assembly actually includes: half clamping mold, mold guide sleeve, positioning sleeve, and movable bushing; its component structure is complex, and the positioning sleeve is a full-circle structure that is fixed by half clamping mold opening and closing. When the workpiece is fixed, the work operation is very cumbersome and the safety is too high. The positioning sleeve, the movable bush and the half-clamp closed and fixed often cannot meet the precise requirements, and the mold replacement is also complicated and the work efficiency is low.

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