KR101544091B1 - Heat Treatment Device Using The Vertical Movement Cooling Method - Google Patents

Abstract

The present invention relates to a heat treatment device using a vertical movement cooling method. According to the present invention, the heat treatment device comprises: a cooling water tank buried underground to be able to heat-treat a heated object to be treated; a housing installed above the cooling water tank, having one side opened by a cover; a heating furnace accommodated inside the housing and having a bottom surface, which has a through-hole formed at a predetermined position inside, combined with a rail groove, which has been installed in the ground, to be able to slide; a plurality of lifting devices combined at regular intervals along an edge of the heating furnace having the through-hole formed therein; and a lifting block combined with the plurality of lifting devices to be placed on the through-hole, having the object be treated mounted on an upper surface wherein the object to be treated is rapidly heat-treated as the lifting block is lifted and lowered inside the cooling water tank via the lifting device.

Description

TECHNICAL FIELD [0001] The present invention relates to a vertical movement cooling type heat treatment apparatus,

The present invention relates to a vertical movement cooling type heat treatment apparatus, and more particularly, to a vertical movement cooling type heat treatment apparatus in which main processes of a heat treatment are successively performed to smoothly perform a heat treatment for solidification.

Generally, a heat treatment furnace is a furnace in which a heat treatment process is performed so as to obtain a desired property by heating a material to be processed at a predetermined temperature.

Such a heat treatment furnace is provided with a furnace body, a heating unit and a cooling unit for heating the object to be heated to a predetermined temperature, and in the conventional case, a tunnel type heat treatment furnace and a batch type furnace A heat treatment furnace of the present invention is generally used.

Here, the tunnel type heat treatment furnace refers to a system in which heat treatment is performed on a material to be treated by heating the object with a heater while transferring the material to be treated which requires heat treatment to a rack.

Such a tunnel type heat treatment furnace has an advantage in that temperature can be easily controlled, but the length of the heat treatment furnace is very long to be several tens of meters, which causes various problems in factory layout, It is difficult to realize the heat treatment condition.

A batch furnace is a so-called batch-type furnace, which is a stand-alone furnace in which a relatively complicated shaped workpiece is charged to the operator's hand and heat-treated.

That is, the arrangement type heat treatment furnace is a system in which the article to be processed is placed in a multi-stage rack and charged into a batch type heat treatment furnace, heat-treated at a desired temperature by a heater, and then transferred to the outside of the heat treatment furnace.

Batch type heat treatment method is a heat treatment method suitable for creating high quality by incorporating design technology for customer's requirements.

Such a batch-type heat treatment furnace requires a secondary heat treatment or cooling after maintaining a constant temperature and then bringing the processed material back into the furnace. Therefore, it is difficult to continuously process the furnace, and there may be a sudden temperature change due to exposure to room temperature There is a problem.

On the other hand, in the heat treatment furnace, the object to be treated is subjected to heat treatment for modifying the kind and composition of the phase present by the temperature by an operation of modifying the properties of the material at an appropriate speed by operating operations such as heating and cooling.

Heat treatment is a process that requires heat treatment such as carburizing, quenching and sintering for the purpose of strengthening the structure or strengthening the surface after processing at the site where the parts are processed using metal.

Herein, the quenching is called "quenching" in recent years. It prevents quenching in the inside of a metal or an alloy and prevents quenching by rapidly quenching the quenching state so that the quenching state is maintained at a high temperature or the intermediate state at a low temperature. .

Therefore, the heat treatment furnace for heat treatment aims at improving the productivity by obtaining a desired structure by performing a rapid heat treatment operation by eliminating an unnecessary work process.

One example of a heat treatment method through a quenching process is disclosed in Published Unexamined Patent Application No. 1988-0001831 entitled " Vertical Quench Heat Treatment Apparatus ".

In the above document, a shaft vertically installed in a housing is connected and supported by a flange unit fitted with a bearing, a V-pulley mounted on a V-pulley motor installed at a lower portion of the shaft, and a V- As shown in FIG.

The turntable placed horizontally on the upper part of the shaft has a slight protrusion such that a holder for supporting the half-shell of the rotor is inserted. In a base supported by a support stand erected on both outer sides of the housing, cooling water is injected into the inner diameter of the half- A cylinder equipped with an inner diameter injection cylinder having a plurality of holes formed on its circumferential surface is provided.

Accordingly, when the roller half cell placed on the holder rotates, the inner diameter injection cylinder vertically descends from the cylinder to the inner diameter of the roller half cell, and at the same time, the outer diameter injection block advances horizontally to the outer diameter of the roller half cell to inject cooling water for each predetermined time.

However, the above-described heat treatment apparatus has an advantage of improving the productivity through a rapid heat treatment operation through injection, but it has a disadvantage that a cylinder equipped with an inner diameter injection cylinder for injecting cooling water must be separately installed.

In addition, it is difficult to appropriately cope with the shape according to the type of the object to be processed. Particularly, when the object to be processed has a large size, it is necessary to manufacture a heat treatment furnace of a suitable size corresponding thereto. There is a problem that it is difficult.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a vertically moving cooling type heat treatment apparatus capable of rapid heat treatment without being constrained by the shape and size of a material to be processed.

Another object of the present invention is to provide a vertically moving cooling type heat treatment apparatus in which heat loss from the heat treatment furnace to the outside is reduced and thermal efficiency is increased.

It is another object of the present invention to provide a vertically moving cooling type heat treatment apparatus in which movement between processes for heat treatment is reduced and rapid heat treatment is performed to maximize productivity and quality.

Another object of the present invention is to provide a vertically moving cooling type heat treatment apparatus which does not require an additional facility for transferring between processes and is capable of efficient heat treatment with a small production cost.

In order to accomplish the above and other objects of the present invention, according to an embodiment of the present invention, there is provided a cooling water tank embedded in a basement so that a heated object can be heat treated, A heating furnace housed in the housing and slidably coupled to a rail groove formed on the ground, the bottom surface of which is provided with a through hole at a predetermined position; And a lift block which is coupled to the plurality of elevating and lowering devices and is disposed in the space in the through hole and closes the through hole and on which the object to be processed is seated, ; Wherein the lift device comprises a plurality of rope supporting portions which are respectively provided at both ends of the heating furnace in which the through holes are formed and which are spaced apart from each other by a predetermined distance in the longitudinal direction of the heating furnace, A plate fixedly coupled to the rod at a predetermined position on a lower surface of the cylinder block by a bracket, a plate slidingly coupled to a rod provided at each end of the cylinder, a split ring coupled to each end of the plate, And the other end fixedly coupled to the bracket is connected to each of the split ring and the plurality of rope supporting parts and is fixedly coupled to each other at predetermined positions on both side edges in the width direction of the up / A plurality of wires made of a wire; Wherein the lift block is moved up and down to the inside of the cooling water tank through the lift device to rapidly heat treat the object to be processed.

The heating furnace includes a base plate which forms a bottom surface of the heating furnace and is formed with a wheel at a predetermined position on a lower edge of the rail so as to correspond to the rail groove and has a through hole formed therein, A rotating shaft coupled to one end and the other end of each of the wheels at a longitudinally opposite edge of the base plate on which the through hole is formed; And a drive motor for transmitting rotational force to the rotary shaft.

delete

The elevating block includes an elevating and lowering plate positioned in the through hole and being raised and lowered by the elevating device, a seating part arranged on the upper surface of the elevating and lowering plate such that a plurality of units are spaced apart from each other by a predetermined distance, And a cut-out portion formed between the end portions.

The inside of the heating furnace is sealed by the cover, and at least one jetting port for heating the object is provided at a predetermined position on the inner side.

The vertical movement cooling type heat treatment apparatus according to an embodiment of the present invention has an effect that rapid heat treatment can be performed without being constrained by the shape and size of the object to be processed.

Further, the heat loss from the heat treatment furnace to the outside is reduced, and the thermal efficiency is increased.

In addition, since the movement between processes for heat treatment is reduced, rapid heat treatment is performed, and productivity and quality are maximized.

In addition, since there is no need for an additional facility for transferring between processes, efficient heat treatment can be performed with a small production cost.

1 is a schematic perspective view of a vertical movement cooling type heat treatment apparatus according to an embodiment of the present invention;
FIG. 2 is a plan view and a side view showing a configuration of a base plate of a heat treatment apparatus of vertical movement cooling type according to an embodiment of the present invention. FIG.
3 is a partially enlarged view of the portion A shown in Fig. 2; Fig.
4 is a partially enlarged view of a portion B shown in Fig. 2; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a schematic perspective view of a vertical movement cooling type thermal processing apparatus according to an embodiment of the present invention. FIG. 2 is a view illustrating a structure of a base plate of a vertical movement cooling type heat processing apparatus according to an embodiment of the present invention. FIG. 3 is a partially enlarged view of the portion A shown in FIG. 2, and FIG. 4 is a partially enlarged view of the portion B shown in FIG.

1 to 4, a vertical movement cooling type heat treatment apparatus 100 according to an embodiment of the present invention includes a cooling water tank 110, a housing 120, a heating furnace 130, a lifting device 140, And a lift block (150).

The cooling water tank 110 is buried in the basement so as to heat-treat the heated object (not shown), that is, quench or slow cooling.

The housing 120 is installed at an upper portion of the cooling water tank 110 and is opened at one side by a cover 122.

The housing 120 is provided at an upper portion of the cooling water tank 110 and is selectively opened by a cover 122 provided on the upper and lower sides.

The heating furnace 130 is accommodated in the housing 120 and a bottom surface having a through hole 130a at a predetermined position inside thereof is slidably coupled to a rail groove 160 provided on the ground.

The inside of the heating furnace 130 is sealed by a cover 122, and at least one jetting port 130b for heating a material to be processed (not shown) is provided at a predetermined position on the inner side.

The open side of the heating furnace 130 is opened by the cover 122 and is accommodated in the housing 120 so that the bottom surface of the heating furnace 130 is located between the housing 120 and the cooling water tank 110 The bottom surface of which is provided to be able to enter and exit the outside of the housing 120 opened by the cover 122. [

In addition, a control module (not shown) is provided at a predetermined position outside the heating furnace 130 to form an atmosphere inside the heating furnace.

The heating furnace 130 includes a base plate 132, a body 134, a rotating shaft 136, and a driving motor 138.

The base plate 132 is coupled to a wheel 132a at a predetermined position on the lower edge of the rail so as to correspond to the rail groove 160 and has a through hole 130a formed therein.

The base plate 132 refers to a bottom surface of the heating furnace 130. The base plate 132 is mainly composed of a base plate 132 having a large rectangular shape as viewed in Fig. And the rope supporting portion 142, the cylinder 144, etc. constituting the elevating device 140 are arranged.
2 (a) is a plan view mainly for the base plate, and Fig. 2 (b) is a side view mainly for the base plate.
The base plate 132 is seated in the rail groove 160 through a wheel 132a coupled to an outer edge of the lower surface and a through hole 130a is formed at a predetermined position inside the base plate 132, .

The body 134 is disposed on the upper portion of the base plate 132 to be accommodated in the housing 120, and a space for heating the object to be processed (not shown) is formed therein.

The rotation shaft 136 is installed in the width direction of the base plate 132 by coupling one end and the other end of the rotation axis 136 to each wheel 132a located at the opposite side edge in the longitudinal direction of the base plate 132 on which the through hole 130a is formed.

The drive motor 138 is coupled to a predetermined position on the lower surface of the base plate 132 and transmits a rotational force to the rotational shaft 136. The drive motor 138 and the rotational shaft 136 are connected to each other by a pulley- .

The raising and lowering device 140 is coupled to a plurality of the rails 140 at predetermined intervals along the edge of the heating furnace 130 where the through holes 130a are formed. More specifically, Three of them are mutually symmetrically spaced apart from each other in the longitudinal direction of the heating furnace 130 at both side edges thereof.

The lifting device 140 includes a rope support portion 142, a cylinder 144, a plate 145, a split ring 146, and a plurality of wire ropes 149.
Fig. 3 is an explanatory view of the elevating device 140. Fig. 3 (a) is an overall plan view of the lift device, Fig. 3 (b) is a plan view of a portion of the rope supporting portion 142 constituting the lift device, (D) is a side view of the portion of the split ring 146, which is a top view (e) of a portion of the split ring 146 constituting the lift device.

The rope supporting portions 142 are provided at both ends in the width direction of the heating furnace 130 in which the through holes 130a are formed and are installed in a plurality of spaced apart in the longitudinal direction of the heating furnace 130, 149 serve as sheaves when moved up and down.

It is preferable that the rope support portion 142 is positioned adjacent to the cooling water tank 110 from the outside to the inside of the heating furnace 130 sequentially from the front of the heating furnace 130 in which the cover 122 is installed, So that the wire ropes 149 are easily separated into the respective rope supports 142 without mutual entanglement.

 The cylinder 144 is fixedly coupled to a predetermined position on the lower side of both sides in the width direction of the heating furnace 130 to which the plurality of rope supporting portions 142 are coupled by a bracket 144b.

The plate 145 is connected to the rod 144a provided at the end of each of the cylinders 144 so as to be reciprocated in the longitudinal direction of the heating furnace 130 through the operation of the cylinder 144, Slide is moved.

The split ring 146 is coupled to and rotates at each end of the plate 145 and is comprised of a first and a second rotating ring 147, 148.

The first rotating ring 147 has a shaft 147a rotatably coupled with one end in the longitudinal direction and the other end inside the opposite ends of the open end of the " C " And a rotating wheel 147b coupled to the center shaft of the shaft 147a.

The second rotary ring 148 is coupled to the inside of both end edges of the plate 145 spaced apart from the first rotary ring 147 by a predetermined distance and is rotatably supported by the shaft 148a, (148b).

At this time, a number of grooves 148c corresponding to the plurality of rope support portions 142 are formed on the outer circumferential surface of the rotary wheel 148b provided in the second rotary ring 148 to disperse a plurality of wire ropes 149 One by one.

The plurality of wire ropes 149 are connected at one end to one side of the bracket 144b and at the other end to the rotation rings 147b and 148b respectively provided to the split ring 146 and the plurality of rope supporting portions 142 And are mutually symmetrically and fixedly coupled to predetermined positions on both side edges in the width direction of a lift block 150 described later at a predetermined distance.

At this time, the plurality of wire ropes 149 are connected to the outer circumferential surface of the end portion coupled to the bracket 144b, and a spring 149a is coupled to protect the plurality of wire ropes 149 from the load of the object to be processed . Fig. 4 (a) is a plan view of the bracket 144b and Fig. 4 (b) is a side view.

The lifting block 150 is coupled to the lifting and lowering device 140 and is positioned in the through hole 130a, and an object to be processed (not shown) is placed on the upper surface. 2 (a), the through hole 130a is indicated by a thick dotted line in the middle in the middle of the base plate 132. As shown in FIG.

The lifting block 150 is lifted and lowered into the cooling water tank 110 through the lifting device 140 so that the object to be processed (not shown) is quickly heat-treated.

That is, the elevating block 150 is provided in a shape corresponding to the through hole 130a, and is supported by a plurality of wire ropes 149 coupled to the edge of the width direction at a predetermined distance to be connected to the bottom surface of the heating furnace 130 And is positioned in the through hole 130a so as to be parallel. When the lifting block 150 is positioned in the through hole 130a and the through hole 130a is closed, the heating furnace 130 is completely closed.

An object to be processed (not shown) is seated on the upper surface of the lifting block 150 and a plurality of wire ropes 149 are unwound and retracted by the operation of the lifting device 140, And is raised and lowered inside the cooling water tank 110 through the cooling water tank 110.

The lifting block 150 includes a lifting plate 152, a seating portion 154, and a cutting portion 156.

The ascending / descending plate 152 is positioned in the through hole 130a and ascended and descended by the ascending / descending unit 140. [

A plurality of units 154a are arranged on the upper surface of the ascending / descending plate 152 so as to be spaced apart from each other by a predetermined distance.

That is, the seating portion 154 refers to a convex portion formed by arranging a plurality of units 154a on the upper surface of the elevating and lowering plate 152, and a to-be-processed object (not shown) is seated on the upper surface of the convex portion .

An incision 156 is formed between each of the seating portions 154.

That is, the cutout portion 156 refers to a recess formed between each of the seating portions 154 provided on the upper surface of the ascending / descending plate 152. When the article to be processed (not shown) The cooling water is rapidly discharged and supplied through the cut-off portion 156 when the wafer 110 is lifted and lowered, thereby achieving a smooth heat treatment.

Hereinafter, a process of heat-treating an article to be processed by using the vertical movement cooling type heat treatment apparatus will be described with reference to the accompanying drawings.

The lifting block 150 is positioned in the through hole 130a of the base plate 132 located outside the housing 120 and the upper surface of the lifting block 150 is lifted by a crane or a forklift Not shown).

Subsequently, the base plate 132 in a state in which the lifting block 150 is seated is slid to the inside of the housing 120 so as to be matched with the body 134, and then the cover 122 is closed to seal the heating furnace 130.

Next, a heat treatment apparatus with an atmosphere in the heating furnace 130 is operated through a control module (not shown) to perform heat treatment on the object (not shown).

At this time, in the case of rapid cooling, the lifting block 150 is directly lowered into the cooling water tank 110 together with the heated object (not shown) to perform rapid cooling of the heated object (not shown).

At this time, it is preferable that the cover 122 is opened to lower the temperature inside the heating furnace 130 at the same time so as to achieve faster cooling.

Thereafter, all of the heat treatment processes are completed by moving up and down to the upper part of the lift block 150, which has been completed, and sliding it out of the housing 120 together with the base plate 132.

Accordingly, the vertical movement cooling type heat treatment apparatus according to an embodiment of the present invention has an effect that rapid heat treatment can be performed without being restricted by the shape and size of the object to be processed.

Further, the heat loss from the heat treatment furnace to the outside is reduced, and the thermal efficiency is increased.

In addition, since the movement between processes for heat treatment is reduced, rapid heat treatment is performed, and productivity and quality are maximized.

In addition, since there is no need for an additional facility for transferring between processes, efficient heat treatment can be performed with a small production cost.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention It will be understood.

100: Vertical movement cooling type heat treatment apparatus
110: cooling water tank 120: housing 122: cover
130: heating furnace 130a: through hole 130b:
132: base plate 132a: wheel 134: body
136: rotating shaft 138: driving motor 140: elevating device
142: rope supporting portion 144: cylinder 144a: rod
144b: Bracket 145: Plate 146: Split ring
147: first rotating ring 147a: shaft 147b: rotating wheel
148: second rotating ring 148a: shaft 148b: rotating wheel
148c: groove 149: plural wire ropes 149a: spring
150: lift block 152: lift plate 154:
154a: multiple units 156: incision 160: rail groove

Claims (5)

A cooling water tank (110) buried in the bottom so as to heat treat the heated object;
A housing 120 installed at an upper portion of the cooling water tank 110 and opened at one side by a cover 122;
A heating furnace (130) housed in the housing (120) and slidably coupled to a rail groove (160) provided with a bottom surface having a through hole (130a) formed therein at a predetermined position;
A lifting device 140 spaced apart from the heating furnace 130 by a predetermined distance and coupled to the heating furnace 130 through the through holes 130a; And
And a lift block 150 which is coupled to the plurality of lifting devices 140 and is located in the space of the through hole 130a and closes the through hole 130a and the object to be processed is seated on the upper surface thereof I will;
The elevating device 140 includes a plurality of rope supporting portions 142 provided at both end portions of the heating furnace 130 in the width direction of the heating furnace 130 where the through holes 130a are formed and spaced apart from each other by a predetermined distance in the longitudinal direction of the heating furnace 130 A cylinder 144 fixedly connected to a predetermined position on the lower side of both sides in the width direction of the heating furnace 130 to which the plurality of rope supporting portions 142 are coupled by a bracket 144b, A split ring 146 coupled to each end of the plate 145 and rotatably coupled to the bracket 144b; a plate 145 coupled to the rod 144a at each end of the plate 145; One end of which is fixedly connected and the other end of which is connected to each of the split ring 146 and the plurality of rope supporting portions 142 so as to be spaced apart from each other at predetermined positions on both side edges in the width direction of the elevating block 15, A plurality of Following is made of a rope (149);
Wherein the lifting block (150) is moved up and down into the cooling water tank (110) through the lifting device (140) to rapidly heat treat the object to be processed.
[2] The apparatus according to claim 1, wherein the heating furnace (130)
A base plate 132 having a bottom surface of the heating furnace 130 and corresponding to the rail groove 160 is formed with a wheel 132a at a predetermined position on a lower surface thereof and a through hole 130a formed therein, A body 134 disposed at an upper portion of the base plate 132 so as to be accommodated in the housing 120 and a body 134 disposed at an opposite side edge of the base plate 132 in which the through hole 130a is formed, And a driving motor 138 coupled to a predetermined position on the lower surface of the base plate 132 and transmitting a rotational force to the rotation shaft 136. [ A vertical movement cooling type heat treatment apparatus.
delete The method according to claim 1,
The elevating block includes an elevating and lowering plate positioned in the through hole and being raised and lowered by the elevating device, a seating part arranged on the upper surface of the elevating and lowering plate such that a plurality of units are spaced apart from each other by a predetermined distance, And a cut-out portion formed between the heat transfer plate and the heat transfer plate.
The method according to claim 1,
Wherein the inside of the heating furnace is sealed by the cover, and at least one or more ejection openings for heating the object are provided at predetermined positions on the inner side.

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