Stepwise self-feeding heat treatment furnace

Abstract

The invention relates to a stepwise self-feeding heat treatment furnace belonging to the technical field of heat treatment furnaces. The stepwise self-feeding heat treatment furnace comprises a furnace frame, a furnace body, a machine frame, a traction trolley lifting mechanism, a trolley guide rail frame, a traction trolley and a traction trolley reciprocating mechanism, wherein the furnace body is arranged on the furnace frame; the bottom of each of both sides of a furnace chamber is respectively fixed with a pair of workpiece bearing frames and is respectively provided with a group of support pillar abdication cavities; the machine frame corresponds to the bottom of the furnace body; the traction trolley lifting mechanism is mounted above the machine frame; the trolley guide rail frame is connected with the traction trolley lifting mechanism; the traction trolley is arranged on the trolley guide rail frame; a group of support pillars is respectively fixed at both sides of the traction trolley and arranged in positions corresponding to the support pillar abdication cavities; each support pillar extends into the corresponding support pillar abdication cavity; a workpiece consignment mechanism is fixed at the upper part of each group of support pillars; each workpiece consignment mechanism corresponds to the space between the corresponding pair of workpiece bearing frames; and the traction trolley reciprocating mechanism is arranged on the machine frame and connected with the traction trolley. The invention has the advantages that the stepwise displacement of workpieces can be realized, the requirement for the stepwise movement of workpieces can be satisfied, and the stepwise self-feeding heat treatment furnace is convenient to manufacture, mount, use and maintain.

Description

technical field [0001] The invention belongs to the technical field of heat treatment furnaces, in particular to a step-by-step automatic feeding heat treatment furnace . Background technique [0002] As known in the industry, in the manufacturing process of mechanical parts (such as chain rails) and metal materials (such as bars, pipes and forgings) made of metal, heat treatment is usually required to ensure quality such as improving hardness. Usually, the workpiece for heat treatment is fed into the furnace from the feed port at one end of the length direction of the heat treatment furnace, and the workpiece is moved towards the other end of the length direction of the heat treatment furnace by the driving mechanism within a period of time set according to the process. The discharge port at one end moves until it is output from the discharge port to complete the heat treatment. [0003] Chinese Invention Patent Publication No. CN101333591A introduces the "Push Rod Ty...

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Problems solved by technology

[0003] The "push rod type continuous vacuum tempering and annealing multi-purpose furnace" introduced by the Chinese invention patent publication number CN101333591A is to use the push rod to push the workpiece from the feed port of the heat treatment furnace Move towards the direction of the discharge port until it is expelled from the furnace. Since the patent application does not provide any schematic diagram, the specific structure cannot be known; the "high-frequency annealing machine positioning feeding mechanism" recommended by CN201284351Y uses a synchronous belt transmission mechanism to drive the workpiece , because the synchronous belt moving mechanism is located in the furnace, it is not only easy to damage, but also troublesome to maintain; the "quenching equipment" disclosed by the publication number CN101144112A utilizes the principle of a forklift to shovel out the workpiece after heat treatment from the furnace and transfer it to the quenching pool. The accompanying drawings of the description of the patent scheme illustrate the rollers arranged in the furnace to drive the workpiece to move; the "seamless steel pipe quenching furnace transmission device" provided by CN201614391U utilizes the transmission roller to drive the steel pipe

[0004] is not limited to the patents or patent application schemes listed above. The common point is that the feeding mechanism for driving the workpiece to move is set in the furnace, so the service life Short, troublesome maintenance is a common shortcoming, and the "vacuum annealing furnace feeding mechanism" disclosed by the utility model patent authorization announcement number CN20181706U may be able to avoid the shortcoming, but the overall structure is complicated and it is lacking, and because the patent scheme does not provide such The enlightenment of technical elements such as the power mechanism that drives the traction trolley, the structural connection relationship between the feeding trolley and the traction trolley, and the docking of the guide rail and the guide rail in the furnace body, so there are obstacles to the interpretation of the industry

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