KR20230087047A - Manufacturing equipment and manufacturing method for reclining springs installed in vehicle seats - Google Patents

Abstract

The present invention relates to a manufacturing device for a recliner spring of a vehicle seat and a manufacturing method thereof. The purpose of the present invention is to manufacture a spiral spring by easily bending a front end of a material and easily cutting a rear end at the same time. More specifically, the manufacturing device for a recliner spring of a vehicle seat includes: a material supply unit supplying a band-shaped material; a forming unit installed on one side of the material supply unit; a cutting unit installed on one side of the forming unit, and cutting the rear end of the spring; a bending unit installed on one side of the cutting unit and bending the rear end of the spring which is cut; and a heating unit heating the front end and the rear end of the supplied material. The front end of the supplied material is inserted into a winding shaft, and the winding shaft rotates. Therefore, the front end of the material is wound on the circumference of the winding shaft, and the spiral spring is manufactured by the forming unit.

Description

Recliner spring manufacturing device and manufacturing method for vehicle seats {Manufacturing equipment and manufacturing method for reclining springs installed in vehicle seats}

The present invention relates to an apparatus and method for manufacturing a recliner spring for a vehicle seat, and more particularly, by applying heat at a constant temperature to the front and rear ends of a material through a heating unit that heats the front end of a material at a high frequency. It relates to a recliner spring manufacturing device and manufacturing method for a vehicle seat for manufacturing a spiral-shaped spring by easily bending and simultaneously cutting and bending the rear end of a material.

In general, a spring used for returning a vehicle seat after being turned back is a spiral spring (hereinafter referred to as a 'spring') in the form of a spiral (whirlpool) winding of a strip-shaped metal.

When manufacturing such a spring, it is common to fix the end of a strip-shaped material to a rotatable winding shaft and then rotate the winding shaft to create a spiral shape.

However, a problem found in the conventional manufacturing method is that when a spiral is created by rotating the winding shaft, it is difficult to maintain a constant distance between the strip materials forming the spiral. This is because the belt material is wound while adhering to it with the pulling force of the .

The reason why the gap must be maintained is that in the case of a spiral spring, a constant distance is maintained between the strip materials in a free state, and then the force to have elasticity, that is, the force to be further wound is applied and has the elasticity to return to the free state. .

Therefore, in the prior art, as a method for solving this problem, a gap maintaining material is supplied during the winding operation so that the strip, which is a material, and the gap maintaining material are wound at the same time, and then, when the winding is completed, the gap maintaining material is removed to maintain the gap. It is to secure the gap as much as the thickness of the ashes.

In addition, considering the characteristics of the vehicle, the structure of the spring is changed during assembly with the recliner, so it is difficult to manufacture the spring shape, and the structure is slightly distorted every time the spring is made one by one, resulting in an economical problem of disposal. has occurred

Republic of Korea Patent Registration No. 10-0453403

The present invention has been made in view of the above problems, and an object of the present invention is to easily bend the front end of the material by applying heat at a constant temperature to the front and rear ends of the material through a heating unit heated at high frequency At the same time, it is to provide a recliner spring manufacturing apparatus and manufacturing method for a vehicle seat for manufacturing a spiral-shaped spring by easily cutting and bending the rear end of the material.

Another object of the present invention is to provide a recliner spring manufacturing apparatus and manufacturing method for a vehicle seat to promote accurate winding around a winding shaft without separating the material by inserting the front end of the material through an insertion hole provided in the winding shaft. there is.

Objects of the embodiments of the present invention are not limited to the above-mentioned purposes, and other objects not mentioned above will be clearly understood by those skilled in the art from the description below. .

According to a feature for achieving the above object, the present invention is a material supply unit for supplying a material in the form of a belt;

A molding unit provided at one side of the material supply unit, inserting a front end of the supplied material into a winding shaft, rotating the winding shaft, and manufacturing a spiral-shaped spring while being wound around the winding shaft;

a cutting unit provided on one side of the molding unit and cutting the rear end of the fabricated spring;

A bending part provided on one side of the cutting part and bending the rear end of the cut spring;

An apparatus for manufacturing a recliner spring for a vehicle seat further comprising a heat heating unit provided between the material supply unit and the molding unit and applying heat to the front and rear ends of the supplied material may be provided.

In addition, according to an embodiment of the present invention, the winding shaft,

An apparatus for manufacturing a recliner spring for a vehicle seat further comprising an insertion hole into which the front end of the material is inserted may be provided.

In addition, according to an embodiment of the present invention, the thermal heating unit,

An apparatus for manufacturing a recliner spring for a vehicle seat may be provided by heating the front end and the rear end of the material at high frequency to apply heat.

In addition, according to an embodiment of the present invention, in the manufacturing method of the recliner spring of the vehicle seat,

A material supply step of supplying a material in the form of a belt;

A spring manufacturing step of manufacturing a spiral-shaped spring by fixing the front end of the supplied material to a winding shaft, rotating the winding shaft, and winding around the winding shaft;

A material cutting step of cutting the rear end of the fabricated spring;

A material bending step of bending the rear end of the cut spring;

Including,

After the material supply step, a heat heating step of applying heat to the front end and the rear end of the supplied material;

A recliner spring manufacturing method of a vehicle seat further comprising may be provided.

In addition, according to an embodiment of the present invention, in the thermal heating step,

A recliner spring manufacturing method of a vehicle seat may be provided by heating and applying heat to the front and rear ends of the material at high frequency.

According to the apparatus and method for manufacturing a recliner spring for a vehicle seat of the present invention, by applying heat at a constant temperature to the front and rear ends of the material through a heating unit heated at high frequency, the front end of the material is easily bent and at the same time It has the effect of producing a spiral-shaped spring by easily cutting and bending the rear end of the material.

In addition, there is an effect of promoting accurate winding around the winding shaft without separating the material by inserting the front end of the material through the insertion hole provided in the winding shaft.

1 is a view showing an apparatus for manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention;
2 is a view showing a winding shaft of a recliner spring manufacturing apparatus for a vehicle seat according to an embodiment of the present invention;
3 is a view showing a spring manufactured in an apparatus for manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention;
4 is a block diagram illustrating a method of manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention.

Objects, other objects, features and advantages of the present invention below will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprise' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been prepared to more specifically describe the invention and aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described to prevent confusion in describing the present invention.

1 is a view showing an apparatus for manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention, and FIG. 2 is a view showing a winding shaft of the apparatus for manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention. 3 is a view showing the spring manufactured in the apparatus for manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention, and FIG. 4 is a method for manufacturing a recliner spring for a vehicle seat according to an embodiment of the present invention. It is a block diagram showing

As shown in FIG. 1, the apparatus for manufacturing a recliner spring for a vehicle seat according to the present invention includes a material supply unit 100, a molding unit 200, a cutting unit 300, a bending unit 400, and a heat heating unit ( 500).

More specifically, a material supply unit 100 for supplying a strip-shaped material M from one side, provided on one side of the material supply unit 100, and the front end S-1 of the material M is wound A molding unit 200 that is inserted into the winding shaft 210, rotates the winding shaft 210, and manufactures a spiral-shaped spring S while being wound around the winding shaft 210, and the molding unit 200 ) A cutting part 300 provided on one side of the manufactured spring (S) to cut the rear end (S-2), and a rear end of the spring (S) provided on one side of the cutting part 300 and cut It includes a bending part 400 for bending (S-2), but is provided between the material supply part 100 and the forming part 200, and the rear end part S-2 of the supplied material M. ) It is a configuration further comprising a thermal heating unit 500 for applying heat to.

First, the material supply unit 100 is configured to supply the material M in the form of a strip.

Here, it is revealed that various tool steels can be applied as the material M as a wire rod.

The material supply unit 100 continuously supplies the material M in the form of a long strip to the molding unit 200 to be described below.

Here, a tension control unit 110 may be further added between the material supply unit 100 and the molding unit 200 .

In the tension control unit 110, an upper roller 111 and a lower roller 112 are provided under the upper roller 111, respectively, and the material supplied between the upper roller 111 and the lower roller 112 (M) can be guided.

That is, the tension control unit 110 is provided between the material supply unit 100 and the molding unit 200 to guide the supplied material M and maintain a constant tension at the same time.

The molding unit 200 is configured to manufacture the material M supplied from the material supply unit 100 into a spiral spring S.

The molding unit 200 is configured to include a winding shaft 210 and a driving motor (not shown) for rotating the winding shaft 210 by being shaft-coupled with the winding shaft 210 .

The driving motor (not shown) rotates at a constant speed, and is implemented as a motor such as a servo motor to rotate the winding shaft 210 in a forward or reverse direction.

As shown in FIG. 2, the winding shaft 210 further includes an insertion hole 211 into which the front end portion S-1 of the material M is inserted.

The insertion port 211 is manufactured in a form to accommodate the front end (S-1) of the material (M), and when the material (M) is supplied from the material supply unit 100 and approaches the molding unit 200, the material (M) The front end (S-1) of is inserted.

At this time, the insertion hole 211 generates a pressing force pushing the material M with a certain force during the supply process of the material M from the material supply unit 100. By this pressing force, the front end portion S-1 of the material M ) Is inserted into the insertion hole 211 and fixed at the same time.

That is, in the molding unit 200, the material M is supplied from the material supply unit 100, and the front end S-1 of the supplied material M is inserted into the insertion hole 211 and fixed at the same time, and the driving motor When the winding shaft 210 is rotated at a constant speed (not shown), the material M is sequentially wound around the winding shaft 210 by the rotating force of the winding shaft 210, and a spiral-shaped spring this will be produced.

Meanwhile, a heating unit 500 is provided between the material supply unit 100 and the molding unit 200 .

Such a thermal heating unit 500 is configured to apply heat to the front end (S-1) and the rear end (S-2) of the material (M) to be supplied.

More specifically, the thermal heating unit 500 heats the front end (S-1) and the rear end (S-2) of the material (M) supplied from the material supply unit 100 at a high frequency. Heat is applied to the front end (S-1) and the rear end (S-2) of the material (M).

Such a heating unit 500, in order to manufacture a spiral-shaped spring due to the nature of the material (M), the bending process must be performed after the front end (S-1) of the material (M) is inserted into the insertion hole 211, , Since the cutting process and the bending process of cutting the rear end (S-2) of the manufactured spring (S) must be performed, the front end (S-1) and the rear end (S-2) of the material (M) have a constant temperature By applying heat, the cutting and bending processes of the front end (S-1) and the rear end (S-2) of the material (M) can be easily performed.

At this time, it is preferable to maintain a constant temperature of the heating unit 500, and it is preferable to maintain a heated state of about 600 to 700 ° C.

The cutting part 300 is configured to cut the rear end part S-2 of the spring S manufactured through the molding part 200.

The cutting part 300 is provided on one side of the molding part 200, and more specifically, the material M is provided on one side of the end portion wound around the winding shaft 210.

That is, the cutting part 300 can easily cut the rear end part S-2 of the spring S manufactured through the molding part 200 and heated through the thermal heating part 500.

Here, it should be noted that the cutting unit 300 may be performed simultaneously or individually with the bending process of the bending unit 400 to be described below.

As such, since the cutting unit 300 is a well-known configuration, a detailed description thereof will be omitted.

The bending part 400 is configured to bend the rear end part S-2 of the spring S cut through the cutting part 300.

The bending part 400 is provided on one side of the cutting part 300, and more specifically, the material M is provided on one side of an end portion wound around the winding shaft 210.

That is, the bending part 400 can easily bend the rear end part S - 2 of the spring S cut by the cutting part 300 .

Here, it should be noted that the bending unit 400 may be performed simultaneously with the above-described cutting process of the cutting unit 300 or may be performed separately.

As such, since the bending unit 400 is a well-known configuration, a detailed description thereof will be omitted.

Looking at the operating relationship of the apparatus for manufacturing a recliner spring for a vehicle seat according to the present invention as described above is as follows.

First, the material M is supplied from the material supply unit 100 .

At this time, the thermal heating unit 500 heats the front end (S-1) and the rear end (S-2) of the material (M) supplied from the material supply unit 100 with high frequency and applies heat at a constant temperature.

Here, the front end (S-1) of the material (M) to be supplied generates a pressing force that pushes the material (M) with a certain force in the supply process of the material (M). S-1) is inserted into the insertion port 211 and fixed at the same time, and when the winding shaft 210 is rotated at a constant speed in a drive motor (not shown), the material ( As M) is sequentially wound around the winding shaft 210, the spiral spring (S) is manufactured.

Thereafter, by performing a cutting process and a bending process on the rear end (S-2) of the spring (S) at the cutting part 300 and the bending part 400, the spiral-shaped spring (S) shown in FIG. 3 is manufactured. will be.

Hereinafter, a method of manufacturing a recliner spring of a vehicle seat according to the present invention will be described.

As shown in FIG. 4, the method of manufacturing a recliner spring for a vehicle seat according to the present invention includes a material supply step (S10), a thermal heating step (S11), a spring manufacturing step (S20), and a material cutting step (S30). ) and a material bending step (S40).

More specifically, the present invention includes a material supply step (S10) of supplying a strip-shaped material (M), and the front end (S-1) of the supplied material (M) is fixed to the winding shaft (210), A spring manufacturing step (S20) of manufacturing a spiral-shaped spring (S) while the winding shaft 210 is rotated and wound around the winding shaft 210, and a rear end portion (S) of the manufactured spring (S) -2) including a material cutting step (S30) of cutting, and a material bending step (S40) of bending the rear end (S-2) of the cut spring (S), but after the material supplying step (S10) In, it consists of a heat heating step (S11) of applying heat to the front end (S-1) and the rear end (S-2) of the supplied material (M).

First, the material supply step (S10) is a step of supplying the material (M) in the form of a strip.

Here, it is revealed that various tool steels can be applied as the material M as a wire rod.

The material supply unit 100 continuously supplies the material M in the form of a long strip to the molding unit 200 to be described below.

Here, a tension control unit 110 may be further added between the material supply unit 100 and the molding unit 200 .

In the tension control unit 110, an upper roller 111 and a lower roller 112 are provided under the upper roller 111, respectively, and the material supplied between the upper roller 111 and the lower roller 112 (M) can be guided.

That is, the tension control unit 110 is provided between the material supply unit 100 and the molding unit 200 to guide the supplied material M and maintain a constant tension at the same time.

When the material supply step (S10) is performed, the heat heating step (S11) is performed through the heat heating unit 500 provided between the material supply unit 100 and the molding unit 200.

This thermal heating step (S11) is a step of applying heat to the front end (S-1) and the rear end (S-2) of the material (M) to be supplied.

More specifically, the thermal heating unit 500 heats the front end (S-1) and the rear end (S-2) of the material (M) supplied from the material supply unit 100 at a high frequency. Heat is applied to the front end (S-1) and the rear end (S-2) of the material (M).

Such a heating unit 500, in order to manufacture a spiral-shaped spring due to the nature of the material (M), the bending process must be performed after the front end (S-1) of the material (M) is inserted into the insertion hole 211, , Since the cutting process and the bending process of cutting the rear end (S-2) of the manufactured spring (S) must be performed, the front end (S-1) and the rear end (S-2) of the material (M) have a constant temperature By applying heat, the cutting and bending processes of the front end (S-1) and the rear end (S-2) of the material (M) can be easily performed.

At this time, it is preferable to maintain a constant temperature of the heating unit 500, and it is preferable to maintain a heated state of about 600 to 700 ° C.

When the thermal heating step (S11) is performed, the spring manufacturing step (S20) is performed.

This spring manufacturing step (S20) is a step of manufacturing the material (M) supplied from the material supply unit 100 into a spiral spring (S).

In the spring manufacturing step (S20), the forming unit 200 is configured to include a winding shaft 210 and a drive motor (not shown) for rotating the winding shaft 210 by being shaft-coupled with the winding shaft 210. .

The driving motor (not shown) rotates at a constant speed, and is implemented as a motor such as a servo motor to rotate the winding shaft 210 in a forward or reverse direction.

As shown in FIG. 2, the winding shaft 210 further includes an insertion hole 211 into which the front end portion S-1 of the material M is inserted.

The insertion port 211 is manufactured in a form to accommodate the front end (S-1) of the material (M), and when the material (M) is supplied from the material supply unit 100 and approaches the molding unit 200, the material (M) The front end (S-1) of is inserted.

At this time, the insertion hole 211 generates a pressing force pushing the material M with a certain force during the supply process of the material M from the material supply unit 100. By this pressing force, the front end portion S-1 of the material M ) Is inserted into the insertion hole 211 and fixed at the same time.

That is, in the molding unit 200, the material M is supplied from the material supply unit 100, and the front end S-1 of the supplied material M is inserted into the insertion hole 211 and fixed at the same time, and the driving motor When the winding shaft 210 is rotated at a constant speed (not shown), the material M is sequentially wound around the winding shaft 210 by the rotating force of the winding shaft 210, and a spiral-shaped spring this will be produced.

A spring manufacturing step (S20) is performed, and a material cutting step (S30) is performed.

This material cutting step (S30) is a step of cutting the rear end (S-2) of the spring (S) manufactured through the molding unit (200).

In the material cutting step (S30), the cutting part 300 is provided on one side of the molding part 200, more specifically, the material (M) is provided on one side of the end portion wound around the winding shaft 210.

That is, the cutting part 300 can easily cut the rear end part S-2 of the spring S manufactured through the molding part 200 and heated through the thermal heating part 500.

Here, it should be noted that the material cutting step (S30) may be performed simultaneously or separately with the material bending step (S40) to be described below.

Since this material cutting step (S30) is already known, a detailed description thereof will be omitted.

After the material cutting step (S30) is performed, the material bending step (S40) is performed.

This material bending step (S40) is a step of bending the rear end (S-2) of the spring (S) cut through the cutting portion (300).

In the material bending step (S40), the bending unit 400 is provided on one side of the cutting unit 200, more specifically, the material M is provided on one side of the end portion wound around the winding shaft 210.

That is, the bending part 400 can easily bend the rear end part S - 2 of the spring S cut by the cutting part 200 .

Here, it should be noted that the material bending step (S40) may be performed simultaneously with the above-described material cutting step (S30) or may be performed separately.

Since this material bending step (S40) is already known, a detailed description thereof will be omitted.

Therefore, according to the apparatus and method for manufacturing a recliner spring for a vehicle seat of the present invention, the front end of the material is easily bent by applying heat at a constant temperature to the front and rear ends of the material through a heating unit heated at a high frequency. At the same time, there is an effect of manufacturing a spiral-shaped spring by easily cutting and bending the rear end of the material.

In addition, there is an effect of promoting accurate winding around the winding shaft without separating the material by inserting the front end of the material through the insertion hole provided in the winding shaft.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of this application It should be understood that there may be variations and examples.

100: material supply unit 110: tension control unit
111: upper roller 112: lower roller
200: molding part 210: winding shaft
211: insertion hole 300: cutting part
400: bending part 500: heat heating part
S: Spring S-1: Tip
S-2: rear end M: material

Claims (5)

A material supply unit for supplying material in the form of a belt;
A molding unit provided at one side of the material supply unit, inserting a front end of the supplied material into a winding shaft, rotating the winding shaft, and manufacturing a spiral-shaped spring while being wound around the winding shaft;
a cutting unit provided on one side of the molding unit and cutting the rear end of the fabricated spring;
A bending part provided on one side of the cutting part and bending the rear end of the cut spring;
A recliner spring manufacturing apparatus for a vehicle seat, characterized in that it further comprises; a heat heating unit provided between the material supply unit and the molding unit and applying heat to the front and rear ends of the supplied material.
The method of claim 1,
The winding axis is
Recliner spring manufacturing apparatus for a vehicle seat, characterized in that it further comprises an insertion hole into which the front end of the material is inserted.
The method of claim 1,
The heating part,
Recliner spring manufacturing apparatus for a vehicle seat, characterized in that for applying heat by heating at a high frequency to the front end and rear end of the material.
In the manufacturing method of the recliner spring of the vehicle seat composed of any one of claims 1 to 3,
A material supply step of supplying a material in the form of a belt;
A spring manufacturing step of manufacturing a spiral-shaped spring by fixing the front end of the supplied material to a winding shaft, rotating the winding shaft, and winding around the winding shaft;
A material cutting step of cutting the rear end of the fabricated spring;
A material bending step of bending the rear end of the cut spring;
Including,
After the material supply step, a heat heating step of applying heat to the front end and the rear end of the supplied material;
Method for manufacturing a recliner spring for a vehicle seat, characterized in that it further comprises.
The method of claim 4,
In the heat heating step,
Method for manufacturing a recliner spring for a vehicle seat, characterized in that by applying heat to the front and rear ends of the material by heating at high frequency.

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