KR20230027786A - Heat treatment apparatus with easy mesh belt alignment - Google Patents

Abstract

The present invention relates to a heat treatment apparatus facilitating alignment of a mesh belt. More specifically, the present invention relates to a heat treatment apparatus facilitating alignment of a mesh belt, which continuously aligns a mesh belt so that the mesh belt does not leave a track. The heat treatment apparatus facilitating alignment of a mesh belt comprises: a mesh belt assembly transferring products requiring a heat treatment; a drum assembly transmitting power to the mesh belt assembly so that the same performs an orbital motion; a damping roller assembly aligning the mesh belt assembly; and a guide roller assembly preventing the mesh belt assembly from leaving a track. The guide roller assembly includes: a plurality of guide rollers provided to make contact with both sides of the mesh belt assembly and guiding the mesh belt assembly so that the same does not leave the track; guide roller fixtures supporting the rotating shafts of the guide rollers; and guide roller elastic parts providing elastic force to the guide roller fixtures. The guide rollers located on sides of the mesh belt assembly apply elastic force in the direction of the other sides thereof. Therefore, the heat treatment apparatus can support the mesh belt so that alignment thereof is not lost.

Description

Heat treatment apparatus with easy mesh belt alignment}

The present invention relates to a heat treatment apparatus for facilitating alignment of a mesh belt, and more particularly, to a heat treatment apparatus for facilitating alignment of a mesh belt that continuously aligns a mesh belt so that the mesh belt does not deviate from a track.

In general, a mesh belt conveyor is a conveyor connected by a metal belt having a plurality of through holes formed between a pair of sprockets, and most mesh belt conveyors are installed to pass through a high-temperature heating furnace.

Heat treatment refers to heating or cooling a metal for the purpose of changing the properties of metal or mechanical parts to obtain required strength. Such heat treatment is usually largely composed of a heat treatment furnace and a cooling device. A mesh belt conveyor is used as a means of transporting metal materials or mechanical parts to the inside of the device.

1 is a perspective view showing a mesh belt for heat treatment according to the prior art, and FIG. 2 is a partially enlarged view showing a side portion of the mesh belt for heat treatment according to the prior art.

Referring to FIG. 1, the mesh belt has a simple mesh shape, and thermal expansion occurs due to the nature of the metal material in the process of continuously passing through the inside of a high-temperature heating furnace. The material of such a mesh belt is usually an alloy steel of nickel and chromium, and the heat resistance is about 1000 ° C to 1100 ° C.

However, since the mesh belt as described above simply has a mesh shape in which the loop chains 200 are woven together, frequent friction occurs with the heating device installed inside the heat treatment furnace during transport to the inside of the heat treatment furnace, resulting in the mesh belt itself There are frequent cases where it cannot withstand the heat and is damaged.

As can be seen with reference to FIGS. 1 and 2, in the prior art mesh belt, a plurality of support pins 100 are arranged at regular intervals, and ring chains 200 are connected between the support pins 100 to form a mesh belt. made up of

At this time, at the side ends of the support pin 100 and the ring chain 200, the side portions of the mesh belt are fixed by bending the leftover portions to be fastened to each other and partially welding the fastened portions to each other.

However, when the support pin 100 and the ring chain 200 are bent and fastened to each other and welded, the fastening force is weakened in the process of repeatedly passing through the inside of a high-temperature heating furnace, and the welded portion becomes soft, forming a mesh belt. There is a problem that is easily deformed.

As a result, the mesh belt whose shape is deformed does not run smoothly by the driving roller, and the deformed part is caught in the driving roller, causing the mesh belt to be damaged or the conveyor to stop working, which can stop work. there is.

On the other hand, since the mesh belt continuously orbiting has a force to change its trajectory by the conveying speed and applied load, it is necessary to limit and guide it.

KR 2003-0085777 A KR 10-1839277 B1 KR 20-0289900 Y1

An object of the present invention to solve the above problems is to provide a heat treatment apparatus capable of easily aligning a mesh belt, which can support a mesh belt without departing from its trajectory and not being disturbed while performing an orbital motion.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems to be solved by the present invention that are not mentioned here are those of ordinary skill in the art to which the present invention belongs from the following description. will be clearly understandable.

In order to solve the above problems, a heat treatment apparatus for easy mesh belt alignment according to an embodiment of the present invention includes a mesh belt assembly for transporting a product requiring heat treatment, and a drum for transmitting power so that the mesh belt assembly orbits. In the heat treatment apparatus for easy alignment of the mesh belt, including an assembly, a damping roller assembly for aligning the mesh belt assembly, and a guide roller assembly for preventing the mesh belt assembly from deviating from the orbit, the guide roller assembly comprises: A plurality of guide rollers provided to be in contact with both sides of the mesh belt assembly and guiding the mesh belt assembly so that it does not deviate from the track, a guide roller holder supporting the rotating shaft of the guide roller, and a guide roller providing elastic force to the guide roller holder It includes an elastic part, and the guide roller located on one side of the mesh belt assembly is characterized in that it has an elastic force in the direction of the other side.

Preferably, the mesh belt assembly includes a plurality of rod-shaped support rods disposed at regular intervals, a chain regularly connected to the plurality of support rods in a cluster to form a mesh pattern, and fastened with the support rods on the side of the chain. It includes a plurality of guides provided as much as possible, wherein the guides are bent at a predetermined angle to form a step at both ends, and guides adjacent to each other are partially overlapped and fitted with ends having different steps in the direction of one support rod. there is.

Preferably, an elliptical first fastener is formed at one end of the guide and a circular second fastener is formed at the other end, and the first fastener and the second fastener are respectively fastened to ends of support rods adjacent to each other, Supports the gap between the support rods, and the end of the support rod passes through the first fastener of the guide and is fixed to the second fastener of the neighboring guide by welding, so that only the first fastener can pivot along the outer circumferential surface of the support rod. can do.

Preferably, the damping roller assembly has a plurality of protrusions formed on an outer circumferential surface, a damping roller provided with a roller having a rotating shaft perpendicular to the moving direction of the mesh belt assembly, and a plurality of damping rollers are arranged, the A damping roller box whose bottom surface is opened so that a part of the damping roller protrudes, a link bar connected to one side of the damping roller box, and a hydraulic machine for moving the link bar downward so that the damping roller comes into contact with the mesh belt assembly. can be done with

Preferably, the damping roller box may further include a damping shaft coupling portion provided to be fastened to both ends of the rotation shaft of the damping roller, and a damper portion covering an outer circumferential surface of the damping shaft coupling portion and providing elastic force. .

The heat treatment apparatus for facilitating alignment of the mesh belt according to the present invention has an effect of supporting the mesh belt without departing from its trajectory and not being disturbed while performing orbital motion through the configuration of the guide roller assembly and the damping roller assembly.

1 is a perspective view showing a mesh belt for heat treatment according to the prior art.
2 is a partially enlarged view showing a side portion of a mesh belt for heat treatment according to the prior art.
3 is a perspective view showing a mesh belt assembly and a guide roller assembly according to an embodiment of a heat treatment apparatus for facilitating mesh belt alignment according to the present invention, when the mesh belt assembly passes downward through a heating furnace on an endless track that shows the form.
4 is a side view showing a guide roller assembly according to an embodiment of a heat treatment apparatus for facilitating mesh belt alignment according to the present invention.
5 is a side perspective view of a damping roller assembly according to an embodiment of a heat treatment apparatus for facilitating mesh belt alignment according to the present invention.
6 is a front perspective view of a damping roller assembly according to an embodiment of a heat treatment apparatus for facilitating mesh belt alignment according to the present invention.
7 is an exemplary view showing that the damping roller assembly approaches the mesh belt assembly in the heat treatment apparatus for facilitating mesh belt alignment according to the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and those skilled in the art in the art to which the present invention belongs It is provided to fully inform the person of the scope of the invention. And terms used in this specification are for describing the embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, the drawings and detailed descriptions of configurations and their actions and effects, which can be easily known by those skilled in the art, are simplified or omitted, and will be described in detail focusing on parts related to the present invention.

The mesh belt is provided in the form of an endless track and can transfer products requiring heat treatment to the heating furnace. The mesh belt applied to the present invention is provided to heat-treat various metal parts while passing through a high-temperature heating furnace, and since the chain and attached parts constituting the mesh belt are also exposed to high-temperature heat, thermal expansion occurs and a problem occurs. In particular, there was a problem that the tension of the belt was lowered or the alignment was disturbed due to high temperature, and the mesh belt was severely damaged so that it could not function properly. In order to solve this problem, the following configurations were devised.

As shown in FIGS. 3 to 7, in the heat treatment apparatus for facilitating mesh belt alignment according to the present invention, a mesh belt assembly 2 for transporting a product requiring heat treatment, and the mesh belt assembly 2 are orbitally moved. A drum assembly that transmits power to do so, a damping roller assembly 3 that aligns the mesh belt assembly 2, and a guide roller assembly 1 that prevents the mesh belt assembly 2 from moving off the track. In the heat treatment device for easy alignment of the mesh belt, a plurality of guide roller assemblies 1 are provided to contact both sides of the mesh belt assembly 2, and guide the mesh belt assembly 2 so that it does not deviate from the track. It includes a guide roller 11, a guide roller holder 12 supporting a rotational axis of the guide roller 11, and a guide roller elastic part 13 providing elastic force to the guide roller holder 12, The guide roller 11 located on one side of the mesh belt assembly 2 may have elasticity in the direction of the other side.

First, as shown in FIGS. 3 and 4, the guide roller assembly 1 is configured to prevent the mesh belt assembly 2 from escaping the orbit when the orbit is performed, and the guide roller 11 , It is configured to include a guide roller fixing table 12 and a guide roller elastic part 13.

As shown in FIG. 3, a plurality of guide rollers 11 are provided in contact with both side surfaces of the mesh belt assembly 2, and serve to guide the mesh belt assembly 2 so that it does not deviate from the track.

In addition, the guide roller holder 12 serves to support the rotating shaft of the guide roller 11 .

In addition, the guide roller elastic part 13 may provide elastic force to the guide roller holder 12 .

That is, as shown in FIG. 4 , the guide roller 11 can guide the trajectory of the mesh belt assembly 2 elastically by the guide roller elastic part 13 .

Specifically, a plurality of guide roller assemblies 1 are provided, and a support for fixing and supporting the guide roller assembly 1 may be further provided.

In another embodiment, the guide roller assembly 1 may be installed on a wall surface located on the side of the mesh belt.

Next, the mesh belt assembly 2 may include a support rod, a chain, and a guide.

A plurality of the support rods are arranged at regular intervals, and are formed in a long rod shape. When the number of these support rods increases, the length of the mesh belt also increases.

In addition, the interval at which the support rods are disposed varies according to the length of the chain binding, and the shape of the support rods may be formed correspondingly according to the type of chain to be bound.

The chains form a cluster and are regularly connected to the plurality of support rods to form a mesh pattern so that a mesh belt shape is formed as a whole. Metal materials or machine parts to be subjected to heat treatment are placed on these chains.

In general, a short link chain may be used as the chain, and a stud link chain may be used in an environment in which heavy objects are handled. The type and form of such a chain are not limited and may be variously selected according to the use environment.

The guides are fastened to ends of adjacent support rods to support the gap between the support rods. Additionally, it can serve as a stopper to prevent the chain from leaving the end of the support rod, but this configuration is not unconditionally limited, and a separate stopper or stopper is formed on the support rod to limit the movement radius of the chain. can

It is preferable that the guide as described above is formed long upward from the bottom surface of the clustered chains. With this configuration, metal materials or mechanical parts to be heat treated placed on the chain can be prevented from flowing down and falling.

More specifically, the guide is bent at a predetermined angle to form a step at both ends, and guides adjacent to each other are partially overlapped and fitted with ends having different steps in one support rod end.

In addition, the end of the support rod is welded to the outerly overlapping guide fastening part, and only the end of the inner guide that is not fixed is pivotally provided.

In addition, the guide end located on the inside forms an elliptical through-hole through which the end of the support rod passes, so that the mesh belt assembly 2 can smoothly pass through the curved section.

More specifically, a first fastener and a second fastener may be formed in the guide.

The first fastening hole is formed in an elliptical shape at one end of the guide, and a support bar may pass therethrough.

In addition, the second fastening hole is formed in a circular shape at the other end of the guide, and it is preferable that the end of the support rod penetrates and is fixed by welding.

That is, an elliptical first fastener is formed at one end of the guide and a circular second fastener is formed at the other end, and the first fastener and the second fastener are respectively fastened to the ends of the support rods adjacent to each other, so that the gap between the support rods serves to support the gap between

In addition, the end of the support bar passes through the first fastening hole of the guide and is fixed to the second fastening hole of the neighboring guide through welding, so that only the first fastening hole can pivot along the outer circumferential surface of the support rod. As described above, this means that adjacent guide ends having different step directions overlap each other, and the first fastener and the second fastener are respectively formed according to the step direction.

In more detail, only the end of the guide formed with the first fastener overlapping inwardly can pivot around the support bar, and the rotation of the second fastener of the neighboring guide overlapping outward is limited.

That is, one side of the guide is integrally moved with one support rod and rotation of the shaft is limited, but the other end is provided to be axially rotatable in a neighboring support bar. This is a configuration provided for the mesh belt assembly 2 to orbit along the radius of curvature of the drum smoothly in a curved section in orbital motion. When the curved section is formed by the drum assembly, the guides adjacent to each other are curved in a form in which the angle changes in a 'V' shape from a form standing side by side in parallel through the configuration of the support rod, the first fastener, and the second fastener. section can be passed.

In the conventional case, the support rod was fastened to the guide by screwing with a nut, etc., but during the orbital motion of the assembly 2 of the mesh belt, wear and damage to the fastening part with the guide occurred in the curved section, resulting in damage to the screw coupling and heat treatment. There were frequent cases where the device had to be taken out of operation.

However, by overlapping the guide ends adjacent to each other and completely fixing the end of the support bar through welding, the durability of the fastening part of the mesh belt assembly 2 is improved, and the curved section can be smoothly passed through the first fastening hole, so the overall overall The effect of improving durability can be expected.

In addition, in the heat treatment process, the mesh belt assembly 2 made of metal is expanded or contracted by heating and cooling. At this time, the elliptical through hole of the first fastening hole of the guide allows the mesh belt assembly 2 to maintain sufficient flexibility.

In addition, as described above, the guide bent to form a step allows the mesh belt assembly 2 to be supported more flexibly when it is thermally expanded and stretched, and the Alleviates the impact of tensile forces.

Next, as shown in FIGS. 5 to 7, the damping roller assembly 3 helps align the orbital motion of the mesh belt assembly 2 and keeps the conveying surface of the mesh belt assembly 2 flat. It is a structure designed for

The damping roller assembly 3 can flatten a crumpled or misaligned chain by pressing the chain with a certain pressure with the damping roller 31 having protrusions.

In addition, the damping roller assembly 3 plays a role of correcting the trajectory so that the mesh belt assembly 2 whose trajectory direction is distorted can correctly orbit.

Specifically, as shown in FIG. 5, the damping roller assembly 3 includes a damping roller 31, a damping roller box 32, a link bar (not shown) and a hydraulic machine (not shown) It can be.

As shown in FIG. 6, the damping roller 31 has a plurality of protrusions formed on its outer circumferential surface, and a rotational shaft is provided as a roller that maintains a vertical direction in the moving direction of the mesh belt assembly 2.

In addition, the damping roller box 32 is provided with a plurality of damping rollers 31 arranged, and a bottom surface of the damping roller 31 is opened so that a part of the damping roller 31 protrudes.

More specifically, the damping roller box 32 may further include a damping shaft coupling portion 321 and a damper portion 322 .

The damping shaft coupling part 321 is provided to be coupled to both ends of the rotation shaft of the damping roller 31, and serves to support the rotation shaft of the damping roller 31.

In addition, the damper part 322 may provide elastic force to the damping shaft coupling part 321 while surrounding the outer circumferential surface of the damping shaft coupling part 321 .

In addition, the link bar (not shown) is connected to one side of the damping roller box 32 and can move up and down integrally with the damping roller box 32.

In addition, as shown in FIG. 7, the hydraulic machine (not shown) serves to move the link bar (not shown) downward so that the damping roller 31 comes into contact with the chain.

In more detail, the rotating shaft of the damping roller 31 has an elastic force to maintain the vertical direction of the orbital movement of the mesh belt. Therefore, when the damping roller 31 comes into contact with the chain of the mesh belt assembly 2 whose track is disturbed, the elastic force of the damping roller 31 enables the mesh belt assembly 2 to return to an accurate trajectory. At this time, the reason why the damping roller 31 must have elasticity is that when the trajectory is aligned in contact with the chain of the mesh belt assembly 2 strongly without a certain elasticity, there is a high risk of damage to the chain, and the damping roller 31 Or, this is because there is a risk that the rotational shaft of the damping roller 31 may also be damaged.

As shown in FIG. 5 , damper parts 322 are further provided at both ends of the rotating shaft of the damping roller 31 to offset impact. The damper unit 322 is preferably provided as an assembly including a rubber packing or a spring to play a damping role. That is, the chain of the mesh belt assembly 2 is not bent by the damping roller 31 and the trajectory can be smoothly corrected in the correct orbital direction by the rubber packing or spring assembly serving as damping.

In addition, as shown in FIG. 7, since the protrusion of the damping roller 31 enters between the chains of the orbiting mesh belt assembly 2, the force can be easily transmitted to the chain.

Therefore, it is preferable that the protrusion of the damping roller 31 protrudes sufficiently to enter and exit between the chains. In addition, the degree of protrusion may be selected in consideration of the thickness of the chain pattern.

In addition, it is preferable that the protrusions of the damping roller 31 form a straight line along the length direction of the roller, and may vary according to the interval and pattern of the chain of the mesh belt assembly 2.

In addition, the width of the damping roller 31 is provided at a predetermined interval shorter than the entire width of the chain so that the entire roller surface of the damping roller 31 is formed without damaging the guide of the mesh belt assembly 2. It is preferable to be used to correct the direction of movement of the mesh belt assembly (2).

In addition, in one embodiment, there may be a configuration in which a plurality of damping roller boxes 32 are provided to correct the movement direction of the mesh belt assembly 2. This can reduce the load required because more damping rollers 31 can be used to correct and level the track of the mesh belt assembly 2.

In addition, there may be an embodiment in which a plurality of damping rollers 31 are provided at regular intervals without a damping roller box 32 to correct the movement direction of the mesh belt assembly 2, but including the damping roller box 32 It is preferable to be provided in a form with improved durability.

In this way, the damping roller 31 not only correctly corrects the trajectory of the mesh belt assembly 2, but also can play a role of evenly spreading folded or uneven surfaces between chains.

Next, the drum assembly plays a role of transmitting power so that the mesh belt assembly 2 orbits in contact with the mesh belt assembly 2.

Specifically, the drum assembly may include a main drum, an auxiliary drum, and an elastic device.

The main drum is provided as a roll-type drum in contact with the mesh belt assembly 2, and serves to transmit power so that the mesh belt assembly 2 orbits. That is, while the main drum rotates, the driving force is transmitted to the contacting chain.

In addition, the auxiliary drum may be provided as a roll-shaped drum in contact with the chain, and an elastic device including a spring may be provided at an end of a rotating shaft to maintain track tension of the mesh belt assembly 2.

Specifically, the auxiliary drum is formed to have a relatively shorter diameter than the main drum, is provided on both sides of the main drum, and operates as the mesh belt assembly 2 is interposed between the main drum and the auxiliary drum.

In one embodiment, a coating layer is formed on the outer circumferential surface of each of the auxiliary drums to induce friction with the chain to prevent idling.

In addition, an elastic device may be provided in the auxiliary drum.

Specifically, the elastic device may include a frame, an auxiliary drum shaft coupling part, a sliding part, a spring part, and a spacing adjusting part.

The frame is formed in a rectangular frame, and the auxiliary drum shaft coupling part is provided on the inside. The auxiliary drum shaft coupling part is installed inside the frame, and an end of the rotation shaft of the auxiliary drum is fastened to the inner circumferential surface.

In addition, the sliding part is provided parallel to each other on the inner upper and lower surfaces of the frame, and it is preferable that the upper and lower ends of the auxiliary drum shaft coupling part are coupled to each other and provided in the form of a rail so as to be slidable.

In addition, the spring part is provided between one side of the auxiliary drum shaft coupling part and the frame, and serves to apply an elastic force when the auxiliary drum shaft coupling part slides along the sliding part.

In addition, the gap adjusting portion penetrates one side of the frame and the spring portion and is screwed to the auxiliary drum shaft coupling portion. That is, the gap adjusting part can adjust the gap between the auxiliary drum shaft coupling part and the frame by tightening the screw on one side of the frame.

Through the configuration of the elastic device as described above, the auxiliary drum can flexibly respond to the thermally expanded mesh belt assembly 2 to maintain frictional force and also control the tension of the mesh belt assembly.

Conventionally, since the operator had to stop the equipment and adjust the spacing of the auxiliary drums so that the chain of the mesh belt assembly 2 thermally expanded through the heating furnace maintains a constant tension, labor had to be input. On the other hand, in the present invention, since the auxiliary drum can continuously have frictional force on the mesh belt assembly 2 through the elastic device, it is time-efficient and economically efficient, and the operator does not need to approach the heated mesh belt assembly 2. Therefore, the risk of safety accidents can be greatly reduced.

Meanwhile, the elastic device may further include a non-contact sensor, a tension gauge, and an actuator.

The non-contact sensor serves to predict thermal expansion according to the surface temperature of the mesh belt assembly 2.

In addition, the tension gauge may measure the tension of the mesh belt assembly 2 and calculate a movement interval required for the auxiliary drum to maintain the preset tension.

In addition, the actuator serves to control the gap adjusting unit according to the calculation result of the non-contact sensor or tension gauge.

That is, the degree of thermal expansion of the mesh belt assembly 2 is calculated through the configuration of the elastic device to derive the position of the auxiliary drum required to maintain the tension, and the actuator operates accordingly to move the auxiliary drum.

In another embodiment, the tension gauge directly measures the tension of the mesh belt assembly 2, calculates the required auxiliary drum interval according to the tension of the mesh belt assembly 2, and operates the actuator accordingly do.

As such, it will be understood that the technical configuration of the present invention described above can be implemented in other specific forms without changing the technical spirit or essential features of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their All changes or modified forms derived from equivalent concepts should be construed as being included in the scope of the present invention.

1: Guide roller assembly
11: guide roller
12: guide roller holder
13: guide roller elastic part
2: mesh belt assembly
3: damping roller assembly
31: damping roller
32: damping roller box
321: damping shaft coupling part
322: damper unit

Claims (5)

A mesh belt assembly that transports a product requiring heat treatment, a drum assembly that transmits power so that the mesh belt assembly orbits, a damping roller assembly that aligns the mesh belt assembly, and a mesh belt assembly that prevents the mesh belt assembly from moving out of orbit In the heat treatment apparatus for easy alignment of the mesh belt comprising a guide roller assembly to
The guide roller assembly,
a plurality of guide rollers provided in contact with both side surfaces of the mesh belt assembly and guiding the mesh belt assembly so that it does not deviate from its orbit;
a guide roller fixing table supporting the rotating shaft of the guide roller; and
A guide roller elastic part providing elastic force to the guide roller holder;
The heat treatment device for easy alignment of the mesh belt, characterized in that the guide roller located on one side of the mesh belt assembly has elasticity in the direction of the other side. According to claim 1,
The mesh belt assembly,
A plurality of rod-shaped support rods disposed at regular intervals;
chains forming a group and regularly connected to the plurality of support rods to form a mesh pattern; and
Including; a plurality of guides provided to be fastened to the support bar on the side of the chain,
The guide is bent at a predetermined angle to form a step at both ends, and the guides adjacent to each other are partially overlapped and fitted with ends of different steps in the direction of one support rod. According to claim 2,
An elliptical first fastener is formed at one end of the guide and a circular second fastener is formed at the other end, and the first fastener and the second fastener are respectively fastened to the ends of the support rods adjacent to each other, so that there is a gap between the support rods. support,
The end of the support rod is fixed through welding to the second fastener of the neighboring guide through the first fastener of the guide, so that only the first fastener can rotate along the outer circumferential surface of the support rod. Device. According to claim 1,
The damping roller assembly,
A damping roller having a plurality of protrusions formed on an outer circumferential surface and having a rotating shaft perpendicular to the moving direction of the mesh belt assembly;
a damping roller box in which a plurality of damping rollers are arranged and a bottom surface of which is opened so that a portion of the damping roller protrudes;
a link bar connected to one side of the damping roller box; and
A heat treatment apparatus for facilitating mesh belt alignment, comprising: a hydraulic machine for moving the link bar downward so that the damping roller comes into contact with the mesh belt assembly. According to claim 4,
The damping roller box further includes a damping shaft coupling portion provided to be fastened with both ends of the rotation shaft of the damping roller, and a damper portion covering an outer circumferential surface of the damping shaft coupling portion and providing elastic force. Mesh belt alignment is easy, characterized in that heat treatment device.

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