KR-20260062350-A - Heat treatment apparatus with easy elastic control of mesh belt drum

KR20260062350AKR 20260062350 AKR20260062350 AKR 20260062350AKR-20260062350-A

Abstract

The present invention relates to a heat treatment device that facilitates elasticity control of a mesh belt drum. More specifically, the invention relates to a heat treatment apparatus that facilitates easy elastic adjustment of a mesh belt drum, enabling the mesh belt to maintain a certain tension or higher even with thermal expansion. The apparatus 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 a orbital motion, and a damping roller assembly for aligning the mesh belt assembly. In this heat treatment apparatus with improved durability of the mesh belt, the drum assembly is provided as a roll-shaped drum in contact with the mesh belt assembly and includes a main drum that transmits power to cause the mesh belt assembly to move in an orbital motion, and an auxiliary drum provided as a roll-shaped drum in contact with the mesh belt assembly and having a tension control device including a spring at the end of the rotation shaft to control the orbital tension of the mesh belt assembly. The tension control device comprises a rectangular frame, an auxiliary drum shaft coupling part installed inside the frame and having the auxiliary drum rotation shaft coupled to its inner circumference, a sliding part provided parallel to the upper and lower inside the frame, a spring part provided between one side of the auxiliary drum shaft coupling part and the frame, and the frame It is characterized by including a screw-shaped gap adjustment part that penetrates one side and a spring part and is connected to an auxiliary drum shaft coupling part, and said auxiliary drum shaft coupling part is fitted into a sliding part and is slidably arranged.

Inventors

주보원

Assignees

주보원

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (5)

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 drum assembly is, A main drum provided as a roll-shaped drum in contact with the mesh belt assembly and transmitting power to cause the mesh belt assembly to perform orbital motion; and It includes an auxiliary drum provided as a roll-shaped drum in contact with the mesh belt assembly, and a tension control device including a spring at the end of the rotation shaft provided to control the track tension of the mesh belt assembly; The above tension control device comprises a rectangular frame, an auxiliary drum shaft coupling part installed inside the frame and having the auxiliary drum rotation shaft coupled to its inner circumference, a sliding part provided parallel to the upper and lower inside the frame, a spring part provided between one side of the auxiliary drum shaft coupling part and the frame, and a screw-type gap adjustment part that penetrates the one side of the frame and the spring part and is connected to the auxiliary drum shaft coupling part, wherein the auxiliary drum shaft coupling part is fitted into the sliding part and is slidably configured. A heat treatment device for mesh belt drums that facilitates elasticity control, characterized in that a wear-resistant coating agent is coated on the outer surfaces of the main drum and auxiliary drum, respectively.
In paragraph 1, The above tension control device is, A non-contact sensor for predicting thermal expansion according to the surface temperature of the above mesh belt assembly; A tension gauge that measures the tension of the mesh belt assembly and calculates the required movement interval of the auxiliary drum to maintain a preset tension; and A heat treatment device for easy elasticity control of a mesh belt drum, characterized by further including an actuator that controls the gap adjustment unit according to the calculation result of the above-mentioned non-contact sensor or tension gauge.
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 for easy elasticity control of a mesh belt drum, characterized by including a hydraulic machine that moves the above link bar downward so that the damping roller contacts the mesh belt assembly.
In paragraph 3, A heat treatment device for easy elasticity control of a mesh belt drum, characterized in that the damping roller box further comprises a damping shaft coupling part provided 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.
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 for easy elasticity control of a mesh belt drum, characterized in that a guide roller located on one side of the above mesh belt assembly has elastic force in the other side direction.

Description

Heat treatment apparatus with easy elastic control of mesh belt drum The present invention relates to a heat treatment device that facilitates elasticity control of a mesh belt drum, and more specifically, to a heat treatment device that facilitates elasticity control of a mesh belt drum, which enables the mesh belt to maintain a certain tension or higher even with thermal expansion. 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 there is a problem in that the deformed part may get caught in the drive roller, causing the mesh belt to break or the conveyor to stop operating, thereby halting work. In addition, there was a problem where the mesh belt passing through the heating furnace separated from the drum due to thermal expansion, and the mesh belt, with its reduced frictional force with the drum, spun freely. 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 drum assembly in which a mesh belt assembly is interposed according to one embodiment of a heat treatment device for which elasticity control of a mesh belt drum is easy 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 a tension control device according to an embodiment of a heat treatment device that facilitates elasticity control of a mesh belt drum according to the present invention. FIG. 5 is a side view of a damping roller assembly according to an embodiment of a heat treatment device that facilitates elastic adjustment of a mesh belt drum according to the present invention. FIG. 6 is a front perspective view of a damping roller assembly according to an embodiment of a heat treatment device that facilitates elastic adjustment of a mesh belt drum according to the present invention. FIG. 7 is an exemplary diagram showing a damping roller assembly approaching a mesh belt assembly in a heat treatment device for easy elasticity control of a mesh belt drum according to the present invention. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms; these embodiments are provided merely to ensure that the disclosure of th