KR102154594B1 - Heating device - Google Patents

Abstract

The present invention relates to a device for heating material. The device for heating material includes a heating chamber formed by installing a heat insulating wall inside of a housing in such a manner that hot air may be allowed to be in homogeneous contact with a thermoplastic fiber-reinforced composite material in the state of layered flow through a preheating net inside of a heating chamber, and thus the material may be heated uniformly to prevent partial deterioration of the material; and that when operating a nozzle block having an air chamber and air-supplying holes, and the preheating net linked to the nozzle block for heating the material, the nozzle block and the preheating net may be positioned near the material to reduce the time required for making the material contact with the hot air, thereby reducing the overall material heating time, wherein the hot air supplied to the heating chamber is subjected to convection through a blowing unit and a heating unit formed in a space portion outside of the partition wall at one side, and the material in the heating chamber is heated to a predetermined temperature by the convective heat. Particularly, the device includes: a support net received in and supported by a support frame installed at the bottom of the heating chamber; a nozzle block disposed in the heating chamber to correspond to the top of the support net, and including an air chamber formed inside thereof in the transverse direction, and a plurality of air-supplying holes formed in the air chamber to penetrate through the bottom surface of the air chamber; a preheating net fixed at the bottom of the nozzle block to correspond to the support net, while being spaced apart from the nozzle block by a predetermined interval, allowing the hot air supplied through the air-supplying holes to pass therethrough to induce layered flow from turbulence, and supplying the hot air to the material; and an elevating/dropping unit installed at one side of the top of the housing, and linked to the top of the nozzle block in the heating chamber to cause elevation/dropping of the nozzle block.

Description

Material heating device {Heating device}

The present invention relates to a material heating device, and more particularly, a material that enables uniform heating of the material by allowing hot air contacting the thermoplastic fiber-reinforced composite material to be uniformly contacted in a laminar flow inside the heating chamber. It relates to a heating device.

In general, seats are installed at the front and rear of a vehicle to provide a comfortable and comfortable environment to drivers and passengers in the vehicle. The number of seats is determined according to the interior space of the vehicle, and is manufactured in various forms according to the type of vehicle.

Such vehicle seats are important decorative parts related to ride comfort and safety, and provide a feeling of comfort to passengers by appropriately absorbing shock or vibration transmitted during vehicle driving. In addition, while satisfying these conditions, sufficient rigidity and strength must be maintained to ensure passenger safety.

Such a vehicle seat is divided into a seat cushion, which is a part where the occupant sits, a seat back, which is connected to the seat cushion and supports the back of the occupant, and a headrest, which is a part where the occupant leans his head.

In addition, the seat cushion is supported by the seat cushion panel, the seat back is supported by the seat back frame, and the head rest is supported by a head rest support device attached to the top of the seat back frame.

Since such a vehicle seat accounts for about 3 to 5% of the total weight of the vehicle, many studies have been conducted as a target item to reduce the weight and improve fuel economy.

From this point of view, in the case of the seatback frame, the basic frame of the seatback is made of steel in order to maintain its rigidity, but in order to solve the problem of increasing the weight of the vehicle body due to its heavy weight, it is recently lightweight and structurally rigid. It can be satisfied, and the development of an improved seatback frame that can relatively lower the manufacturing cost compared to the case of manufacturing a material such as steel is being made.

As such, recently, the seatback frame is a material capable of satisfying structural rigidity while being lightweight, and a thermoplastic fiber-reinforced composite material is required, and as such a thermoplastic fiber-reinforced composite material, continuous fiber reinforced thermoplastic resin (CFT) ) Or a composite resin including a continuous fiber reinforced thermoplastic resin (CFT), a long fiber reinforced thermoplastic resin (LFT) or a material including a long fiber reinforced thermoplastic resin (LFT) may be applied.

This thermoplastic fiber-reinforced composite material requires a heating device capable of maintaining high temperature conditions before molding, due to the characteristic of forming the necessary plasticity at a high temperature of 235°C or higher.

However, the conventional heating device of the seatback frame material as described above is a convective heat transfer method, and in the process of supplying hot air into the heating chamber, the hot air in contact with the material unevenly contacts the material by a turbulent flow. As well as uneven heating of the material, it promotes partial deterioration of the material, making it difficult to manufacture a product.

The matters described in this background are prepared to enhance an understanding of the background of the invention, and may include matters not known in the prior art to those of ordinary skill in the field to which this technology belongs.

The embodiment of the present invention is to prevent partial deterioration of the material through uniform heating of the material by allowing hot air to uniformly contact the thermoplastic fiber-reinforced composite material in a laminar flow through a preheating net in the heating chamber. It is intended to provide a material heating device that enables it.

In addition, according to an embodiment of the present invention, a nozzle block having an air chamber and an air supply hole, and a preheating net connected to the nozzle block are configured to be close to the material when heating the material, thereby reducing the heating time of the material by high temperature air. It is intended to provide a material heating device that allows it.

In addition, the embodiment of the present invention ensures safety by matching the air chamber and the air outlet through which hot air is supplied through the heating unit by lowering the nozzle block only when the material is heated, and raising the nozzle block when the material is taken out. It is intended to provide a material heating device that facilitates extraction.

In one or more embodiments of the present invention, a heating chamber is formed by installing an insulating wall inside the housing, and the high temperature supplied to the heating chamber through a blowing unit and a heating unit configured in a space outside the partition wall on one side. A material heating apparatus for convectively convectively heating a material in a heating chamber to a certain temperature by convective heat, comprising: a support net seated and supported on a support frame installed at a lower portion of the heating chamber; A nozzle block disposed in the heating chamber to correspond to the upper portion of the support net, and including an air chamber formed in a transverse direction therein, and a plurality of air supply holes penetrating from the air chamber to a lower surface thereof; A preheating net that is fixed to a lower portion of the nozzle block in correspondence with the support net and is spaced apart from each other at predetermined intervals, and induces a laminar flow from turbulent flow while passing high-temperature air supplied through the air supply hole to supply the material to the material; And an elevating unit configured on one side of the upper portion of the housing and connected to an upper portion of the nozzle block in the heating chamber to elevate and lower the nozzle block.

The support net may be formed of a perforated plate, and may be made of a stainless material forming a mirror surface on the surface.

The nozzle block may have a connector connected to the air chamber and the air outlet at one end of the nozzle block corresponding to an air outlet for supplying hot air to the heating chamber through the blowing unit and the heating unit.

In addition, the nozzle block may be formed of a gypsum insulating material, or may be formed of a castable refractory material.

The preheating net may be formed of a perforated plate, and may be made of a stainless steel material having a mirror surface on its surface.

In addition, the preheating net may be formed of a mesh net in which a metal mesh is fixed inside the rectangular frame, and the rectangular frame and the metal mesh may be made of stainless steel.

The elevating unit is installed on one side of the upper portion of the housing, and the rotating shaft is formed of a screw to penetrate into the heating chamber and disposed therein, and a screw housing fixed to the upper center of the nozzle block and fastened to the screw of the motor. Can be made.

The material may be made of a thermoplastic fiber-reinforced composite material, and the thermoplastic fiber-reinforced composite material may be made of a composite material including a continuous fiber reinforced thermoplastic resin (CFT) or a continuous fiber reinforced thermoplastic resin (CFT). have.

In addition, the thermoplastic fiber-reinforced composite material may be made of a composite material including a long fiber reinforced thermoplastic resin (LFT) or a long fiber reinforced thermoplastic resin (LFT).

The embodiment of the present invention prevents partial deterioration of the material through uniform heating of the material by allowing hot air to uniformly contact the thermoplastic fiber-reinforced composite material in a laminar flow while passing through the preheating net in the heating chamber. Has the effect of making it possible,

In addition, according to an embodiment of the present invention, a nozzle block having an air chamber and an air supply hole, and a preheating net connected to the nozzle block are positioned close to the material when the material is heated to shorten the time for the material to contact the hot air. It has the effect of shortening the overall material heating time.

In addition, in an embodiment of the present invention, safety can be ensured by lowering the nozzle block only when the material is heated to match the air chamber and the air outlet through which hot air is supplied through the heating unit. There is an effect of increasing the material to make it easier to take out.

1 is a perspective view of a material heating apparatus according to an embodiment of the present invention.
2 is a front cross-sectional view of a material heating device according to an embodiment of the present invention.
3 is a perspective view illustrating an example of a support net and a preheating net applied to a material heating device according to an embodiment of the present invention.
4 is a perspective view of another example of a preheating net applied to a material heating device according to an embodiment of the present invention.
5 and 6 are diagrams illustrating a step-by-step use of a material heating device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to those shown in the drawings, and the thickness is enlarged to clearly express various parts and regions. Done.

In addition, parts irrelevant to the description are omitted in order to clearly describe the embodiments of the present invention.

1 is a perspective view of a material heating apparatus according to an embodiment of the present invention, and FIG. 2 is a front cross-sectional view of a material heating apparatus according to an embodiment of the present invention.

1 and 2, a material heating device (hereinafter, referred to as a heating device) according to an embodiment of the present invention convections high-temperature air into the heating chamber HC, and is a thermoplastic fiber-reinforced composite material ( Heat 1) to a certain temperature so that it has the necessary plasticity for molding.

Here, the thermoplastic fiber-reinforced composite material (1, hereinafter, referred to as a material) is made of a composite material including a continuous fiber reinforced thermoplastic resin (CFT) or a continuous fiber reinforced thermoplastic resin (CFT), or It may be made of a composite material including a fiber reinforced thermoplastic resin (LFT: Long Fiber reinforced Thermoplastic) or a long fiber reinforced thermoplastic resin (LFT).

These heating devices include the housing 11, the heat insulating wall 13, the blowing unit 3, the heating unit 5, the support net 15, the nozzle block 20, the preheating net 17, the elevating and descending unit 30. Includes.

The housing 11 is formed in a rectangular box shape, a door 11a is formed on one front side, a control panel 11b is formed on the other front side, and a separation wall 9 is formed on an inner side.

The heat insulating wall 13 is installed in the housing 11 with an upper portion open at one side of the separation wall 9 as a reference, and forms a heating chamber HC therein.

Here, the heat insulating wall 13 may be applied as long as it is a material having fire resistance, heat resistance, and heat insulation.

The blowing unit 3 is configured in the space S on the other side of the separation wall 9 inside the housing 11 to suck in external air and blow the air to the heating chamber HC through the blower 7 It comprises a motor (3a).

Here, the air outlet 7 may pass through one side of the separation wall 9 and the heat insulating wall 3 to form a through hole.

The heating unit 5 has a heating coil (not shown) therein so that external air supplied from the blowing unit 3 to the heating chamber HC passes through the heating coil and is rapidly heated.

The heating unit 5 is connected to the blowing unit 3 and the first blower pipe P1 to receive external air, and the heated air is connected to the blower 7 through the second blower pipe P2. Is supplied to the heating chamber HC.

The support net 15 supports the material 1 supplied by seating a circumferential portion on a support frame 15a installed below the heating chamber HC.

3 is a perspective view illustrating an example of a support net and a preheating net applied to a material heating device according to an embodiment of the present invention.

Referring to FIG. 3, the support net 15 may be formed of a perforated plate in which small through holes H are regularly formed on the front surface of the cross section, and may be made of stainless steel to form a mirror surface on the surface.

Here, forming the support net 15 as a mirror surface using a stainless material induces radiant heat inside the heating chamber HC so that the inside of the heating chamber HC reaches a certain temperature in a short time. It is to induce.

In addition, the nozzle block 20 is disposed inside the heating chamber HC corresponding to the upper portion of the support net 15, and the air chamber 21 is formed in the transverse direction inside.

In addition, the nozzle block 20 penetrates from the air chamber 21 to the lower surface to form a plurality of air supply holes 23, and the air chamber 21 and the air chamber 21 and the air at one end corresponding to the air outlet 7 A connector 25 connecting the air outlet 7 is formed.

Here, the nozzle block 20 may be formed of a gypsum insulating material, or may be formed of a castable refractory material, but is not limited thereto, and is heated by high temperature air inside the heating chamber HC. It can be applied as long as it is a material having heat resistance, heat insulation, and fire resistance for the highest temperature to be used.

The preheating net 17 is fixed to the lower portion of the nozzle block 20 through a fixing rod 17a in a state spaced apart from the nozzle block 20 in correspondence with the support net 15.

Referring to FIG. 3, the preheating net 17 may be formed of a perforated plate in which small through holes H are regularly formed on the front surface of a cross section, and may be made of a stainless material to form a mirror surface on the surface.

Here, the preheating net 17, like the support net 15, is formed of a stainless material as a mirror surface by inducing radiant heat together with the support net 15 inside the heating chamber HC in a short time. This is to induce the effect of allowing the inside of the heating chamber HC to reach a certain temperature.

This preheating net 17 passes the high-temperature air supplied in a turbulent flow through the air supply hole 23 of the nozzle block 20 through the through hole H, and guides the material to a laminar flow. ) To supply evenly.

4 is a perspective view of another example of a preheating net applied to a material heating device according to an embodiment of the present invention.

Meanwhile, referring to FIG. 4, the preheating net 17 may be formed as a mesh net in which a metal mesh 43 is fixed inside the rectangular frame 41, and the rectangular frame 41 and the metal mesh 43 It may be made of stainless steel.

Of course, the preheating net 17, like the support net 15, made of stainless steel, induces radiant heat in the heating chamber HC together with the support net 15, so that the heating chamber HC is It is to induce the effect of reaching a certain temperature.

In this way, the preheating net 17 made of a mesh network also passes the high-temperature air supplied in a turbulent flow through the air supply hole 23 of the nozzle block 20 through the metal mesh 43, It serves to guide the flow to the material (1) evenly supplied.

The elevating unit 30 is configured on one side of the upper portion of the housing 11 and is connected to the upper portion of the nozzle block 20 inside the heating chamber HC so as to operate the nozzle block 20 elevating and descending for a predetermined period. do.

That is, the elevating unit 30 has a motor (M) installed downward to an upper side of the housing (1), and the rotating shaft of the motor (M) is formed of a screw 31 to be inside the heating chamber (HC). It is placed through through.

In addition, a screw housing 33 is fixed in the upper center of the nozzle block 20 to be fastened with the screw 31 of the motor M.

In this elevating unit 30, the screw 31 is fastened to or released from the screw housing 33 according to the forward and reverse rotational drive of the motor M, and the nozzle block 20 is moved within the heating chamber HC for a certain period. It is configured to elevate and descend.

5 and 6 are diagrams illustrating a step-by-step use of a material heating device according to an embodiment of the present invention.

Hereinafter, a process of using the heating device having the above configuration will be described with reference to FIGS. 2 and 5 to 6.

First, referring to FIG. 2, a material 1 to be heated is supplied to the support net 15 with the nozzle block 20 in the heating chamber HC raised.

In this state, as shown in FIG. 5, when power is supplied to the motor M of the elevating unit 30 and driven in the forward direction, the preheating net 17 descends together with the nozzle block 20, and the material 1 Move down to a position close to.

At this time, the connector 25 of the nozzle block 20 is positioned corresponding to the air outlet 7.

Thereafter, as shown in FIG. 6, when power is supplied to and driven to the blowing unit 3 and the heating unit 5, the blowing unit 3 sucks in external air and passes through the first blowing pipe P1. 5).

Then, the heating unit 5 rapidly heats the supplied external air to a certain temperature and transfers the high-temperature air to the air chamber 21 inside the nozzle block 20 through the second blower pipe (P2) and the blower (7). Supply.

At this time, the high-temperature air supplied into the air chamber 21 is collected in the sealed area and supplied to the heating chamber HC through a plurality of air supply holes 23 in a turbulent flow.

In this way, the high-temperature air supplied to the heating chamber (HC) in a turbulent flow passes through the small through-hole (H) of the preheating net (17) and is guided to a laminar flow, which is evenly in contact with the material (1), resulting in partial deterioration. The material is heated without

At this time, the high-temperature air heated by the material 1 moves to the lower part of the heating chamber HC through the through hole H of the support net 15, and a part of the discharge port EH formed at the lower part of the housing 11 It is discharged through.

As described above, in the heating apparatus according to the embodiment of the present invention, the thermoplastic fiber-reinforced composite material 1 used as a material for the seatback frame for a vehicle is laminar flowed through the preheating net 17 in the heating chamber HC. The material 1 is heated evenly by making it in contact with the flow of the material 1, thereby preventing partial deterioration of the material 1.

In addition, the nozzle block 20 having the air chamber 21 and the air supply hole 23, and the preheating net 17 connected to the nozzle block 20 are brought close to the material 1 when the material is heated to There is also an effect of shortening the heating time of the material by reducing the time that the air of the material is in contact with the material (1).

In addition, only when the material is heated, the nozzle block 20 is lowered to match the air chamber 21 and the air outlet 7 through which hot air is supplied through the heating unit 5 to ensure safe operation. When taking out, there is also an advantage of raising the nozzle block 20 to facilitate taking out.

One embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and is easily changed by a person of ordinary skill in the technical field to which the present invention pertains from the embodiment of the present invention. It includes all changes to the extent deemed acceptable.

1: Thermoplastic fiber-reinforced composite material (or material)
3: Blowing unit
3a: blower motor
5: heating unit
7: vent
9: dividing wall
11: housing
11a: door
11b: control panel
13: insulation wall
15: support net
15a: support frame
17: pre-aspiration
17a: fixing rod
20: nozzle block
21: air chamber
23: air supply hole
25: connector
30: elevating unit
31: screw
33: screw housing
M: motor
HC: heating chamber
P1, P2: 1st, 2nd blower pipe

Claims (28)

A heating chamber is formed by installing an insulating wall inside the housing, and a heating chamber by convective heat by convective heat by convectively convectively convectively convectively convective heat of hot air supplied to the heating chamber through a blowing unit and a heating unit configured in the space outside the partition wall In a material heating device that heats the material inside to a certain temperature,
A support net seated and supported on a support frame installed below the heating chamber;
A nozzle block disposed in the heating chamber to correspond to the upper portion of the support net, and including an air chamber formed in a transverse direction therein, and a plurality of air supply holes penetrating from the air chamber to a lower surface thereof;
A preheating net that is fixed to a lower portion of the nozzle block in correspondence with the support net and is spaced apart from each other at predetermined intervals, and induces a laminar flow from turbulent flow while passing high-temperature air supplied through the air supply hole to supply the material to the material; And
An elevating unit configured on an upper side of the housing and connected to an upper portion of the nozzle block in the heating chamber to elevate and lower the nozzle block;
Material heating device comprising a. The method of claim 1,
The support net is
Material heating device formed by a perforated plate. The method of claim 2,
The support net is
Material heating device made of stainless steel that forms a mirror surface on the surface. The method of claim 1,
The nozzle block
A material heating device in which a connector connecting the air chamber and the air outlet is formed at one end corresponding to an air outlet for supplying hot air to the heating chamber through the air blowing unit and the heating unit. The method of claim 1,
The nozzle block
Material heating device formed of gypsum insulation material. The method of claim 1,
The nozzle block
Material heating device formed of castable refractory material. The method of claim 1,
The above pre-aspiration net is
Material heating device formed by a perforated plate. The method of claim 7,
The above pre-aspiration net is
Material heating device made of stainless steel with a mirror surface on the surface. The method of claim 1,
The above pre-aspiration net is
Material heating device formed of a mesh net in which a metal mesh is fixed inside the square frame. The method of claim 9,
The above pre-aspiration net is
Material heating device in which the square frame and the metal mesh are made of stainless steel. The method of claim 1,
The elevating unit is
A material heating device comprising a motor installed on one side of the upper portion of the housing, a rotating shaft formed of a screw, and disposed to penetrate into the heating chamber, and a screw housing fixed at the upper center of the nozzle block and fastened with the screw of the motor . The method of claim 1,
The above material is
Material heating device made of thermoplastic fiber reinforced composite material. The method of claim 12,
The thermoplastic fiber-reinforced composite material
Material heating device made of a composite material including continuous fiber reinforced thermoplastic resin (CFT) or continuous fiber reinforced thermoplastic resin (CFT). The method of claim 12,
The thermoplastic fiber-reinforced composite material
Material heating device made of a composite material including a long fiber reinforced thermoplastic resin (LFT) or a long fiber reinforced thermoplastic resin (LFT). In a material heating device that convections hot air into a heating chamber and heats the material to a certain temperature by convective heat,
A housing forming a partition wall on one inner side;
A heat insulating wall installed in the housing with an upper part open on one side of the partition wall and forming a heating chamber;
A blowing unit configured in the space on the other side of the separation wall of the housing to blow external air into the heating chamber through a ventilation opening;
A heating unit for rapidly heating external air supplied from the blowing unit to the heating chamber;
A support net seated on a support frame installed below the heating chamber to support the supplied material;
A nozzle block disposed in the heating chamber to correspond to the upper portion of the support net, and including an air chamber formed in a transverse direction therein, and a plurality of air supply holes penetrating from the air chamber to a lower surface thereof;
A preheating net that is fixed to a lower portion of the nozzle block in correspondence with the support net and is spaced apart from each other at predetermined intervals, and induces a laminar flow from turbulent flow while passing high-temperature air supplied through the air supply hole to supply the material to the material; And
An elevating unit configured on an upper side of the housing and connected to an upper portion of the nozzle block in the heating chamber to elevate and lower the nozzle block;
Material heating device comprising a. The method of claim 15,
The support net is
Material heating device formed by a perforated plate. The method of claim 16,
The support net is
Material heating device made of stainless steel that forms a mirror surface on the surface. The method of claim 15,
The nozzle block
A material heating device in which a connector connecting the air chamber and the air outlet is formed at one end corresponding to the air outlet. The method of claim 15,
The nozzle block
Material heating device formed of gypsum insulation material. The method of claim 15,
The nozzle block
Material heating device formed of castable refractory material. The method of claim 15,
The above pre-aspiration net is
Material heating device formed by a perforated plate. The method of claim 21,
The above pre-aspiration net is
Material heating device made of stainless steel with a mirror surface on the surface. The method of claim 15,
The above pre-aspiration net is
Material heating device formed of a mesh net in which a metal mesh is fixed inside the square frame. The method of claim 23,
The above pre-aspiration net is
Material heating device in which the square frame and the metal mesh are made of stainless steel. The method of claim 15,
The elevating unit is
A material heating device comprising a motor installed on one side of the upper portion of the housing, a rotating shaft formed of a screw, and disposed to penetrate into the heating chamber, and a screw housing fixed at the upper center of the nozzle block and fastened with the screw of the motor . The method of claim 15,
The above material is
Material heating device made of thermoplastic fiber reinforced composite material. The method of claim 26,
The thermoplastic fiber-reinforced composite material
Material heating device made of a composite material including continuous fiber reinforced thermoplastic resin (CFT) or continuous fiber reinforced thermoplastic resin (CFT). The method of claim 26,
The thermoplastic fiber-reinforced composite material
Material heating device made of a composite material including a long fiber reinforced thermoplastic resin (LFT) or a long fiber reinforced thermoplastic resin (LFT).

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