KR20190138161A - Method and apparatus for manufacturing corner spring block of bed mattress - Google Patents

Abstract

The present invention relates to an apparatus and a method for manufacturing a corner protector which is installed at an edge of a spring assembly for use in a bed mattress and serves to support the spring assembly. The present invention implements a new type of corner protector manufacturing method that performs an automated process including a process of supplying a sheet-shaped material and rolling it in several layers to make it into a cylindrical material and a process of cutting the cylindrical material using a knife operated by an actuator operation. Therefore, workability and productivity can be improved, and in particular, the product quality as well as the standardization of the product can be secured.

Description

Method and apparatus for manufacturing corner guard for bed mattress {Method and apparatus for manufacturing corner spring block of bed mattress}

The present invention relates to an apparatus and method for manufacturing a corner protector for a bed mattress, and more particularly, to an apparatus and method for manufacturing a corner protector installed at an edge of a spring assembly used for a bed mattress and serving to support a spring assembly. It is about.

In general, the mattress used in the bed is a type of Western bedding with a spring combination installed inside the outer skin made of a textile material.

In general, the mattress arranges springs each formed into independent steel wires between the upper and lower steel wire edges in a plurality of rows horizontally and vertically, thereby relieving pressure or impact applied during use due to the elasticity of the springs, as well as weight of the user. It is made to support, and by laminating a non-woven fabric and a padding, such as a sponge or chemical cotton on the upper and lower parts of the spring assembly, it is made of a structure to give comfort to the user.

The cushioning and cushioning effect of the mattress is almost dependent on the elasticity of the spring. When the mattress is used for a long time, a spring, for example, a circumference of the spring assembly, is positioned at a place where the repeated pressure or impact is concentrated. Among the springs located along the springs, particularly the corners of the springs are relatively easily deformed or elastically weakened as compared to the springs of other parts, and as a result, a partial off phenomenon, a phenomenon of popping outward, and the like occurs.

This makes the user's lying position uncomfortable and prevents a good night's sleep, eventually failing to get proper sleep, accumulates fatigue, impairs thinking ability, and disrupts the daily life of the next day. There are many problems such as being shortened.

In view of this, the Korean Utility Model Registration No. 20-0421456, the Korean Patent Publication No. 10-2003-0007820, and the Korean Patent Publication No. 10-2009-0006116 have a corner at the corner of the spring assembly used for the bed mattress A technology for securing the durability and functionality of a mattress by installing a guard is disclosed.

Conventionally, the sheet-shaped material is rolled in several layers using a rotating roller to produce a cylindrical shape, and then a worker makes a cut using a knife to make a spring insertion place in the cylindrical material. The corner guard was manufactured by cutting to a suitable length.

However, since the entire process of manufacturing the corner protector is dependent on the manual labor of the operator, the workability is reduced, the productivity is low, and there is a difficulty in standardizing the product and ensuring the quality.

For example, it is not only time-consuming to cut using a knife, but there is no big problem in cutting along the length of the material from the side to the center hole, but it is not necessary to cut along the length of the material from the center hole to a certain depth. When making an incision, it is difficult to secure the quality of the product, such as difficulty in adjusting the depth of incision and the occurrence of a lot of defects according to the skill of the operator.

Korean Utility Model Registration No. 20-0421456 Korean Patent Publication No. 10-2003-0007820 Korean Patent Publication No. 10-2009-0006116

Therefore, the present invention has been devised in view of the above, as well as supplying a sheet-like material, the process of producing a cylindrical material by rolling in several layers, cutting the cylindrical material by using a knife operated by the actuator operation By implementing a new type of corner guard manufacturing method that performs the process as an automated process, it is possible to improve workability and productivity, and in particular, to manufacture the corner guard for bed mattress that can ensure product quality as well as standardization of the product. And to provide a method for manufacturing the object.

In order to achieve the above object, the apparatus for manufacturing a corner protector for a bed mattress provided by the present invention has the following features.

The apparatus for manufacturing a corner protector for a bed mattress includes a device main body formed of a steel frame structure, a guide drum installed on the upper part of the device main body and guiding the progress of a sheet material, and a rear of the guide drum being installed on the upper part of the device main body. A roller for motor and a roller driving motor for operating the material winding roller, which are positioned side by side and serve to roll the sheet-like material in multiple layers and have side-by-side slots formed along the length of the roller; It consists of a structure including a knife for cutting the cylindrical material by using the actuator for the front and rear operation and the left and right operation actuator installed in the rear end of the main body.

Here, the left and right actuating actuator has a motor, a driving pulley mounted on the shaft of the motor and a driven pulley installed on the opposite side, and connected between the driving pulley and the driven pulley and having an adapter for coupling with a knife. It consists of a structure comprising a wire.

The left and right actuating actuator may further include a pair of guide bars which are installed in a structure supported on the apparatus main body and are positioned side by side of the wire and guide the slide movement of the adapter to which the wire is coupled.

The bed mattress corner protector manufacturing apparatus may further include a heater installed at a lower portion of the apparatus main body and vertically operable by a heater operating cylinder and applying heat to the material when the material is wound by the material winding roller. .

In addition, the apparatus for manufacturing a corner protector for a bed mattress may further include an unwinder which is installed on the upper portion of the apparatus main body and is positioned at the front end of the guide drum to supply sheet-like material.

On the other hand, in order to achieve the above object, the method of manufacturing a corner protector for a bed mattress provided by the present invention has the following features.

The method for manufacturing a corner protector for a bed mattress is cylindrical by rolling the sheet-shaped material supplied in the first step by using a guide drum and rolling the sheet-shaped material in the first step by using a rotating material winding roller. The second step of molding into the material of the material, and the third step of cutting the cylindrical material in a predetermined depth along the material length direction using a knife operated by the front and rear operation actuators and the left and right operation actuators, and for winding the material. After separating the cylindrical material is cut from the roller and the fourth step of cutting the cylindrical material to a predetermined length.

Here, the second step may further include a step of applying heat to the material using a heater when the material is wound by the material winding roller.

Apparatus and method for manufacturing a corner protector for a bed mattress provided by the present invention has the following effects.

A new method of manufacturing corner guards by introducing automation concepts from sheet-like material supply to the process of molding cylindrical material using rollers, and cutting the cylindrical material while operating a knife using actuators capable of reciprocating forward, backward, left and right. By providing the device and method, it is possible to improve the workability and productivity by shortening the manufacturing cycle time and labor cost according to the automated process, and to ensure the standardization of the product and the excellent quality of the product, such that it can always produce a certain standard product. It can be effective.

1 is a perspective view showing a corner protector manufacturing apparatus for a bed mattress according to an embodiment of the present invention
Figure 2 is a front view showing a corner protector manufacturing apparatus for a bed mattress according to an embodiment of the present invention
Figure 3 is a plan view showing a corner protector manufacturing apparatus for a bed mattress according to an embodiment of the present invention
Figure 4 is a side view showing a corner mattress protector manufacturing apparatus according to an embodiment of the present invention
5 is a front view showing a method for manufacturing a corner protector for a bed mattress according to an embodiment of the present invention
6 is a perspective view showing a corner protector manufactured by the method for manufacturing a corner protector for a bed mattress according to an embodiment of the present invention

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

1 to 3 is a perspective view, a front view and a side view showing a corner protector manufacturing apparatus for a bed mattress according to an embodiment of the present invention.

1 to 3, the apparatus for manufacturing a corner protector for a bed mattress includes an apparatus body 10 made of a steel frame structure.

The upper and lower portions of the apparatus main body 10 are provided with a guide drum 11, a material winding roller 13, actuators for operating the knife 17, a heater 19 for heating the material, and the like, which will be described later. .

In addition, the apparatus for manufacturing a corner protector for a bed mattress includes a guide drum 11 installed on the upper portion of the apparatus main body 10 to guide the progress of the sheet-like material.

The guide drum 11 is installed in a structure in which both end shafts are supported by bearings while being disposed across the left and right width directions of the apparatus main body 10, and one of the guide drums 11 has a roller for winding a material 13. The driven gear 22 which meshes with the drive gear 21 attached to the shaft of () is mounted.

Accordingly, the guide drum 11 can guide the progress of the sheet-like material sent to the material winding roller 13 side while rotating in the opposite direction to the material winding roller 13.

In addition, the apparatus for manufacturing a corner protector for the bed mattress is a roller driving motor 14 for operating the material winding roller 13 and the material winding roller 13 at this time to roll the sheet-like material in multiple layers. It includes.

The material winding roller 13 is positioned side by side at a predetermined distance to the rear end of the guide drum 11 and arranged across the left and right width direction of the apparatus main body 10, the shaft is supported by both ends by the bearing Is installed.

The material winding roller 13 is formed in the form of a roller having a semi-circular cross section forming the shape of the flat portion and the curved portion, while the material winding roller 13 passes through the flat portion of the semi-circular cross section from the flat portion to the curved portion A slot 12 having a shape penetrating side by side along the roller axis is formed, and the slot 12 formed as described above penetrates the knife 17 to be described later and the knife 17 moves along the slot 12. You will be able to perform the incision.

Here, the slot 12 may be formed along the length direction of the material winding roller 13 to have a relatively long length compared to the width of the sheet-shaped material in consideration of the width of the sheet-shaped material in a variety of standards.

And, the stopper 23 is installed in one side of the material winding roller 13 in a coaxial structure, the stopper 23 is installed in this way can be moved in the longitudinal direction of the material winding roller 13 When winding the sheet-shaped material having a width it can serve to hold the standard while blocking one side of the sheet-shaped material.

The roller drive motor 14 is a driving means for rotating the material winding roller 13, which is installed on one side of the apparatus main body 10, the shaft of the roller drive motor 14 is installed so that the material winding roller It can be coupled with one end of the shaft of the coupling (13) through a coupling or the like.

Accordingly, when the roller driving motor 14 is operated, the material winding roller 13 also rotates to wind the sheet-shaped material.

Here, the roller drive motor 14 preferably applies a step motor controlled by a controller (not shown).

In connection with this, one side of the shaft of the material winding roller 13 is provided with a known rotation sensor (not shown) capable of measuring the rotation angle and / or the rotation amount of the shaft, measured by the rotation sensor at this time When the predetermined rotation angle and / or rotation amount signal of the rotated axis, that is, the preset rotation angle and / or rotation amount signal of the material winding roller 13 are input to the controller, the roller drive motor 14 is controlled by the output control of the controller. ) Can be controlled.

For example, when the material winding roller 13 is rotated by a predetermined amount of rotation, the rotation sensor is measured and provided to the controller side, and the roller drive motor 14 is subsequently controlled by the output control of the controller. Will stop working.

When the operation of the roller drive motor 14 is stopped as described above, the rotation of the material winding roller 13 is also stopped. At this time, the flat portion of the semi-circular cross section of the material winding roller 13 is positioned vertically, You can look backwards.

In addition, the apparatus for manufacturing a corner protector for a bed mattress includes a knife 17 as a means for cutting a cylindrical material which is rolled in several layers by a material winding roller 13.

The knife 17 has a rod-shaped blade shape, and the cylindrical material is inserted in the radial direction through the front and rear motion and the left and right motion so that the cylindrical material can be cut in a manner of dividing the cylindrical material in the longitudinal direction. do.

To this end, an actuator 16 for right and left operation, for example, a motor 16a for knife left and right operation, is installed on one side of the rear end of the apparatus main body 10, and the left and right rear ends of the apparatus main body 10 are provided. The driving pulley 16b mounted on the shaft of the motor 16a and the driven pulley 16c installed in the rotatable structure by the bearing are respectively disposed, and the driving pulley 16b and the driven pulley disposed opposite to each other are arranged. The wire 16e is connected and installed between 16c.

Then, the adapter 16d is installed on the wire 16e, and the knife 17 in a horizontal posture is coupled to the adapter 16d thus installed.

Accordingly, when the motor 16a is operated in the forward or reverse direction, the wire 16e also moves in a left and right direction while drawing a circular trajectory, and the knife 17 coupled to the wire 16e side also moves left and right in a cylindrical material. It is possible to incision in the longitudinal direction.

In particular, a pair of guide bars 16f are provided as a means for guiding the knife 17 so as to proceed in a straight line.

The guide bars 16f are installed on both sides of the wire 16e, that is, side by side on the upper and lower sides of the wire 16e, and are supported on both sides of the apparatus main body 10 so that both guides are installed in this way. Both ends of the adapter 16d are slidably coupled to the bar 16f via a bush or the like.

Accordingly, when the entire adapter 16d including the knife 17 moves left and right according to the movement of the wire 16e, the guide 17 is guided by both guide bars 16f, so that the knife 17 The precise linear trajectory can be moved, and thus the quality of the material can be secured such that the incision of the cylindrical material forms an accurate straight line.

In addition, the rear end side of the apparatus main body 10, the actuator for the front and rear operation 15, for example, the cylinder for the front and rear operation of the knife is installed, the rod of the cylinder is installed so that the actuator 16 for the left and right operation, The plate 17 is coupled to the plate 24 on which the knife 17 and the like are supported.

Here, the front and rear actuating actuator 15 is preferably made of a pair arranged in a horizontal position on both sides of the rear end of the apparatus main body 10.

Accordingly, the entire plate 24 including the left and right actuator 16, the knife 17, and the like when the actuator 15 for the front and rear operation is operated, for example, when the cylinder is operated, It is possible to move in the front and rear direction, and finally, the operation of the actuator 15 for back and forth operation enables the knife 17 to enter the radial direction of the cylindrical material at the beginning of the incision, and to exit from the cylindrical material side after the incision. It becomes possible.

In addition, the apparatus for manufacturing a corner protector for a bed mattress includes a heater 19 as a means for applying heat to a sheet-like material wound on a material winding roller 13.

The heater 19 is positioned side by side on one side of the sheet-shaped material wound on the material winding roller 13, by applying heat to the joint surface between the materials to slightly melt the sheet-like material can be rolled round several times well It will play a role.

To this end, the lower portion of the main body of the device 10, the heater operating cylinders 18 are installed in a vertical position on both left and right sides, and the rods are formed between the rods of the heater operating cylinders 18 on both sides thus installed. The heater 19 which is present, for example, is provided in a structure in which a known heat transfer heater is supported.

Accordingly, when the material is wound by the material winding roller 13, the heater 19 is raised upward by the upward operation of the heater operating cylinder 18, and is positioned close to the sheet-shaped material being wound up to be heated in the material. By applying, sheet-like materials can be rolled together in several layers as they are joined together through the molten surface.

In addition, the apparatus for manufacturing a corner protector for a bed mattress includes an unwinder 20 as a means capable of supplying a sheet-like material.

The unwinder 20 is installed on the front end of the apparatus body 10 to be freely rotatable, and the unwinder 20 is wound with a certain amount of sheet-like material in a roll shape, where The sheet-like material to be released can be finally supplied to the material winding roller 13 through the plurality of guide drums 11.

On the other hand, look at the manufacturing method of the corner protector for the bed mattress provided by the present invention.

5 is a front view showing a method for manufacturing a corner protector for a bed mattress according to an embodiment of the present invention.

As shown in FIG. 5, as a first step, a step of supplying the sheet-like material 100 guided by the guide drum 11 is performed.

For example, the sheet-like material 100 is continuously supplied from the front end of the apparatus main body 10 to the material winding roller 13 at the rear end of the apparatus main body 10.

At this time, the end of the sheet-like material 100 is released from the unwinder 20 installed in the front end of the device body 10 to pass through a plurality of guide drums 11 arranged in the predetermined It can be made to be partially wound while pre-attached to the outer peripheral surface of the raw material winding roller 13 in the rear end of the apparatus main body 10 by the adhesive agent, heat welding, etc., maintaining tension.

As another example of supplying the sheet-like material 100, instead of the unwinder 20, an operator directly enters an end portion of the sheet-shaped material 100 toward the guide drum 11 side and the material winding roller 13 side. It can also be supplied.

Next, as a second step, the sheet-like material 100 supplied in the first step is rolled in several layers to form a cylindrical material 110 by using the rotating material winding roller 13.

That is, when the roller winding motor 13 is rotated by operating the roller driving motor 14, the sheet-shaped material 100 is rolled up in several layers on the outer circumferential surface of the material winding roller 13 and rolled round, Stopping the operation of the roller drive motor 14 and stopping the rotation of the material take-up roller 13 in the state wound up by the number of layers corresponding to the standard, the state before the cutting to the individual pieces forming one product It is possible to manufacture a long cylindrical material (110).

In this second step, a process of applying heat to the surface of the sheet-like material 100 (surface overlapping when rolling) using the heater 19 when the sheet-like material 100 is wound by the material winding roller 13. It may further include.

For example, when the sheet-like material 100 is wound up using the material winding roller 13, the heater 19 is brought close to the rounded portion of the sheet-like material 100 to heat the sheet-like material 100. By applying this, the surface of the sheet-like material 100 at this time may be slightly melted, and the overlapping surfaces when the rolls are rolled together may be bonded to each other, and thus, a stable cylindrical shape may be maintained.

Next, as a third step, the step of forming the cutout 140 in the radial direction and the longitudinal direction for the cylindrical material 110 formed in the second step.

To this end, the knife 17 is moved back and forth in the radial direction of the cylindrical material 110 through the cooperative operation of the front and rear operation actuator 15 and the left and right operation actuator 16, and then the knife continues. Moving 17 in the left and right direction is performed to cut along the longitudinal direction of the cylindrical material (110).

For example, when the molding of the cylindrical material 110 on the material winding roller 13 in the second step is completed, the actuator 15 for back and forth operation, for example, the cylinder is operated backward. The entire left and right actuator 16 and the knife 17 on the plate 24 are moved forward, so that the knife 17 enters the radial direction from the outer peripheral surface of the material at one end position of the cylindrical material 110. After passing through the center line of the cylindrical material 110, and then passes through the slot 12 of the material winding roller 13 is inserted into the interior of the cylindrical material (110).

Subsequently, the left and right actuator 16, for example the motor 16a, is operated in the forward direction, and as a result, the knife 17 is driven along the longitudinal direction of the cylindrical material 110 by the operation of the pulley and the wire. The cylindrical material 110 is cut while moving, and thus, the cylindrical material 110 is continuously cut in the longitudinal direction and a cut portion 140 having a predetermined depth in the radial direction is formed.

After molding the cutout 160 according to the horizontal movement of the knife 17, the knife 17 is initially positioned by the forward operation of the front and rear operation actuator 15 and the reverse operation of the left and right operation actuator 16. The incision molding step for the cylindrical material 110 in the third step is completed by returning to.

Next, as a fourth step, the cylindrical material 110 on the material winding roller 13, that is, the cylindrical material 110, the incision molding is completed, the cylindrical material 110 thus separated is the specification of the product 120 The step of making the product, ie the corner guard 120, is completed by carrying out the step of cutting to an appropriate length.

At this time, the cylindrical material 110 may be separated from the material winding roller 13 side by opening the cutout 140.

6 is a perspective view showing a corner protector manufactured by the method for manufacturing a corner protector for a bed mattress according to an embodiment of the present invention.

As shown in FIG. 6, the corner protector 120 has a cylindrical shape having a hole penetrating the central axis, and is made of a material such as styrofoam.

The corner protector 120 is made of a cylindrical shape by rolling the sheet-like material 100 in several layers. At this time, the corner protector 120 is continuously cut in the longitudinal direction of the guard and at a certain depth in the radial direction of the guard, for example. An incision 140 is formed to have a depth from one outer circumferential surface to a position close to the opposite outer circumferential surface at least past the central axis.

The corner guard 120 as described above is coupled to a spring assembly having a trapezoidal shape, for example, a spring 130 positioned at an edge of the spring assembly among springs of a spring assembly (not shown) installed on a bed mattress. Will firmly support the corner of the.

For example, the spring 130 is inserted side by side in the cutout 140 of the corner protector 120, and the core guard 120 is inserted into the spring 130 so as to be coupled to the corner of the spring assembly. By supporting the corners of the bed mattress while being positioned at the corners of the bed, that is, the bed mattress, durability and functionality of the bed mattress can be secured.

As described above, in the present invention, the sheet-shaped material is supplied, and the sheet-like material is rolled in several layers to form a cylindrical material, and the cylindrical material is cut by using a knife operating by actuator operation. By providing a new corner protector manufacturing apparatus and a manufacturing method incorporating the process, it is possible not only to improve workability and productivity, but also to achieve product standardization and to ensure product quality.

10: device body
11: guide drum
12: slot
13: material winding roller
14: roller drive motor
15: Actuator for front and rear operation
16: Actuator for left and right operation
16a: Motor 16b: Drive Pulley
16c: driven pulley 16d: adapter
16e: wire 16f: guide bar
17 knife
18: cylinder for heater operation
19: heater
20: Unwind
21: drive gear
22: driven gear
23: stopper
24: plate

Claims (7)

Device body 10 made of a steel frame structure;
A guide drum 11 installed above the apparatus main body 10 to guide the progress of the sheet-like material;
It is installed in the upper portion of the apparatus main body 10 while being positioned side by side at the rear end of the guide drum 11 serves to roll the sheet-like material in multiple layers round and side by side slot 12 is formed along the length of the roller A roller driving motor 14 for operating the material winding roller 13 and the material winding roller 13;
A knife (17) for cutting the cylindrical material by using the front and rear actuators (15) and the left and right actuators (16) installed at the rear end of the apparatus main body (10);
Corner protector manufacturing apparatus for a bed mattress comprising a.
The method according to claim 1,
The left and right actuating actuator 16 includes a motor 16a, a drive pulley 16b mounted on an axis of the motor 16a, a driven pulley 16c provided opposite the drive pulley 16b, and A device for manufacturing a corner protector for a bed mattress, comprising: a wire (16e) connected between the driven pulleys (16c) and having an adapter (16d) for coupling with the knife (17).
The method according to claim 2,
A pair of guide bars 16f which are installed in a structure supported on the apparatus main body 10 and are located side by side on the wire 16e and guide the slide movement of the adapter 16d to which the wire 16e is coupled. Corner protector manufacturing apparatus for a bed mattress further comprising a.
The method according to claim 1,
The heater 19 which is installed in the lower portion of the apparatus main body 10 and can be operated up and down by the heater operating cylinder 18 and applies the heat to the material when the material is wound by the material winding roller 13 further comprises: Corner protector manufacturing apparatus for a bed mattress, characterized in that.
The method according to claim 1,
The apparatus for manufacturing a corner mattress for a bed mattress, characterized in that it further comprises an unwinder (20) which is installed on the upper portion of the apparatus main body (10) and is positioned at the front end of the guide drum (11) and supplies sheet-like material.
A first step of supplying a sheet-shaped material by using a guide drum;
A second step of rolling the sheet-shaped material supplied in the first step in several layers by using a rotating material winding roller to form a cylindrical material;
A third step of cutting the cylindrical material along the material length direction to a predetermined depth by using a knife operated by the front-rear actuator and the left-right actuator;
A fourth step of cutting the cylindrical material to a predetermined length after separating the cylindrical material cut out from the material winding roller;
Corner protector manufacturing method for a bed mattress comprising a.
The method according to claim 6,
The second step is a method of manufacturing a corner mattress protector for a bed mattress further comprising the step of applying heat to the material using a heater when the material winding by the material winding roller.

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