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KR-20260062351-A - Heat treatment apparatus with enhanced durability of mesh belt

KR20260062351AKR 20260062351 AKR20260062351 AKR 20260062351AKR-20260062351-A

Abstract

The present invention relates to a heat treatment device with improved durability of a mesh belt. More specifically, it relates to a heat treatment device with improved durability of a mesh belt capable of preventing damage to a mesh belt that moves in a orbital motion. The device comprises a mesh belt assembly for transporting a product requiring heat treatment, a drum assembly for transmitting power to cause the mesh belt assembly to move in an orbital motion, and a damping roller assembly for aligning the mesh belt assembly. The mesh belt assembly comprises a plurality of rod-shaped support rods arranged at regular intervals, a chain formed by clustering the plurality of support rods and regularly connecting them to form a mesh pattern, and a plurality of guides provided to be connected to the support rods on the sides of the chain. The guides are bent at a predetermined angle so that both ends form a step, and adjacent guides are fitted into one support rod end with their ends having different step directions partially overlapping.

Inventors

  • 주보원

Assignees

  • 주보원

Dates

Publication Date
20260507
Application Date
20241029

Claims (5)

  1. A heat treatment apparatus with improved durability of a mesh belt, comprising a mesh belt assembly for conveying a product requiring heat treatment, a drum assembly for transmitting power to cause the mesh belt assembly to move in an orbital motion, and a damping roller assembly for aligning the mesh belt assembly, The above mesh belt assembly is, A rod-shaped support rod in which multiple rods are arranged at regular intervals; A chain formed by regularly connecting to the plurality of support rods to form a mesh pattern; and Includes a plurality of guides provided to be connected to a support rod on the side of the above chain; The above guide is bent at a predetermined angle to form a step at both ends, and adjacent guides are fitted into a single support rod end with their ends having different step directions partially overlapping. A heat treatment device for improved durability of a mesh belt, characterized in that a wear-resistant coating agent is coated on the outer surface of each of the above drum assemblies.
  2. In paragraph 1, An elliptical first fastening member is formed at one end of the guide and a circular second fastening member is formed at the other end, and the first fastening member and the second fastening member are each fastened to the ends of adjacent support rods to support the gap between the support rods. A heat treatment device with improved durability for a mesh belt, characterized in that the end of the support rod penetrates the first fastening hole of the guide and is fixed to the second fastening hole of an adjacent guide by welding, so that only the first fastening hole can rotate axially along the outer surface of the support rod.
  3. In paragraph 1, The above damping roller assembly is, A damping roller provided as a roller having a plurality of protrusions formed on its outer surface and a rotation axis maintained perpendicular to the direction of travel of the mesh belt assembly; A damping roller box having a plurality of damping rollers arranged therein and a bottom surface open so that a part of the damping roller protrudes; A link bar connected to one side of the above damping roller box; and A heat treatment device with improved durability of a mesh belt, characterized by including a hydraulic machine that moves the above link bar downward so that the damping roller contacts the chain.
  4. In paragraph 3, A heat treatment device for a mesh belt with improved durability, characterized in that the damping roller box further comprises a damping shaft coupling part arranged to be connected to both ends of the rotational shaft of the damping roller, and a damper part that surrounds the outer surface of the damping shaft coupling part and provides elastic force.
  5. In paragraph 1, The present invention further includes a guide roller assembly, and the guide roller assembly is, Guide rollers provided in plurality to contact both sides of the mesh belt assembly and to guide the mesh belt assembly so as not to deviate from the track; A guide roller fixing member supporting the rotation axis of the above guide roller; and Further including a guide roller elastic member that provides elastic force to the guide roller fixing member; A heat treatment device with improved durability of a mesh belt, characterized in that a guide roller located on one side of the above mesh belt assembly has elastic force in the direction of the other side.

Description

Heat treatment apparatus with enhanced durability of mesh belt The present invention relates to a heat treatment device with improved durability of a mesh belt, and more specifically, to a heat treatment device with improved durability of a mesh belt capable of preventing damage to a mesh belt undergoing orbital motion. Generally, a mesh belt conveyor is a conveyor connected by a metal belt having multiple through holes between a pair of sprockets, and most mesh belt conveyors are installed to pass inside a high-temperature heating furnace. Heat treatment refers to the process of heating or cooling metals or machine parts to alter their properties and achieve the required strength. This process typically consists of a heat treatment furnace and a cooling device, and a mesh belt conveyor is used as a means to transport metal materials or machine parts into the furnace and cooling device. FIG. 1 is a perspective view illustrating a mesh belt for heat treatment according to the prior art, and FIG. 2 is a partial enlarged view illustrating a side portion of a mesh belt for heat treatment according to the prior art. Referring to Fig. 1, the mesh belt has a simple mesh shape and undergoes thermal expansion due to the characteristics of the metal material as it continuously passes through the inside of a high-temperature heating furnace. The material of such a mesh belt is typically a nickel and chromium alloy steel, and its heat resistance is approximately 1000°C to 1100°C. However, as the mesh belt described above simply has a mesh shape in which ring chains (200) are interwoven, frequent friction occurs with the heating device installed inside the heat treatment furnace while it is being transported into the heat treatment furnace, and the mesh belt itself frequently fails to withstand the heat and is damaged. As can be seen by referring to FIGS. 1 and 2, the mesh belt of the prior art is formed in the shape of a mesh belt by having a plurality of support pins (100) arranged at regular intervals and ring chains (200) connected between the support pins (100). At this time, the leftover portions at the side ends of the support pin (100) and the ring chain (200) are bent to be connected to each other, and the side portions of the mesh belt are fixed by partial welding of the connected portions. However, there is a problem in that the joint force weakens and the welded portion where the support pin (100) and the ring chain (200) are bent and connected to each other weakens as they repeatedly pass through the inside of a high-temperature heating furnace, and the shape of the mesh belt easily deforms as the welded portion becomes soft. As a result, the deformed mesh belt does not allow for smooth orbital movement by the drive roller, and the fastening part at the deformed section weakens, which can cause the mesh belt to break or the conveyor to stop operating, leading to a suspension of work. FIG. 1 is a perspective view illustrating a mesh belt for heat treatment according to the prior art. FIG. 2 is a partial enlarged view illustrating a side view of a mesh belt for heat treatment according to the prior art. FIG. 3 shows a mesh belt assembly according to one embodiment of a heat treatment device with improved durability of the mesh belt according to the present invention, and shows the shape when the mesh belt assembly passes under the heating furnace in an endless track trajectory. FIG. 4 shows an exploded assembly diagram of a support rod and a guide according to an embodiment of a heat treatment device with improved durability of a mesh belt according to the present invention. FIG. 5 is an exemplary diagram showing a combined form of a support rod and a guide according to an embodiment of a heat treatment device with improved durability of a mesh belt according to the present invention. FIG. 6 is a perspective view of a guide according to an embodiment of a heat treatment device with improved durability of a mesh belt according to the present invention. FIG. 7 is an exemplary diagram showing that in a heat treatment device with improved durability of a mesh belt according to the present invention, a support rod is movable according to the shape of the first fastening member of the guide. FIG. 8 is an exemplary diagram showing that a pair of guides adjacent to each other are coupled to a single support rod and can rotate in a heat treatment device with improved durability of a mesh belt according to the present invention. FIG. 9 is a side view of a damping roller assembly according to an embodiment of a heat treatment device with improved durability of a mesh belt according to the present invention. FIG. 10 is a front perspective view of a damping roller assembly according to an embodiment of a heat treatment device with improved durability of a mesh belt according to the present invention. FIG. 11 is an exemplary diagram showing a damping roller assembly approaching a mesh belt assembly in a heat treatment appa