KR20170118551A - Heating means for edge banding apparatus - Google Patents

Abstract

The present invention relates to a heating apparatus for an edge bending machine capable of effectively arranging a heat source and heating the edge band so as to improve the adhesive force of the edge band and includes a guide unit for guiding the movement path of the edge band at the front side, A plurality of flow holes formed through the front and rear sides, a heating part disposed between the guide part and the conveying part for emitting heat, and a shutter part for opening and closing the flow hole so as to block heat transmitted to the edge band from the heating part The present invention provides a heating device of an edge bending machine.

Description

[0001] HEATING MEANS FOR EDGE BANDING APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process of treating an edge band, and more particularly, to a heating device of an edge bending machine capable of effectively placing a heat source and performing heating so as to improve the adhesive strength of the edge band.

Plate-type panels are widely used to construct various furniture and utensils. Such a plate-shaped panel is formed in a plate shape having various areas and thicknesses as needed. Recently, artificial molded woods have been applied in consideration of cost reduction and productivity improvement. Medium Density Fiber board (MDF) is a medium-density plywood made mainly from sawdust, and is known as a plywood that has received the spotlight as a furniture material in recent years. PB (Particle Board) It is a product made by crushing, compressing and making it into a plate form. It is mainly used as a kitchen sink or office furniture.

These artificial woods are supplied as suitable intermediate products or finished products by surface treatment so that various colors and patterns are formed on the front and rear surfaces and the surface is protected. Particularly, in the case of a panel made of artificial molded wood, since the raw material at the side edge is exposed, it is usual to finish it by attaching an edge band to protect it and to improve the beauty. As the edge bands, PP, PVC, veneer, and patterned paper are used. In order to attach the edge bands to the wood panel, an edge banding machine is used.

Generally, the edge bending machine applies adhesive to the side surface while transferring the wooden panel from the upper surface of the conveyer moving in an infinite track manner, and after adhering and pressing the edge band continuously supplied to the side of the wood panel on which the adhesive is applied, In a suitable length and shape.

Registration Utility Model No. 20-0248583 shows a prior art edge bending machine, and Fig. 1 is a schematic view thereof.

The conveyor 100 provides conveying power to one side, and a plurality of rollers, which are in contact with the upper surface of the wood panel, are arranged on the upper side thereof in the longitudinal direction. The panel P is interposed between the conveyor 100 and the roller and is conveyed in one direction. In the conveying process, the adhesive supply unit 110 applies an adhesive to the side surface of the panel.

At this time, the band roll 120 performs a function of feeding the edge band 122 in a wound state. When the edge band passes through the guide roller 124 and the conveyance roller 126, And is attached to the side surface of the panel P while being pressed by the plurality of pressure rollers 130. [

In the process of bonding the edge band to the panel, the reliability of the bonding depends not only on the uniform application of the adhesive component but also on the temperature. Specifically, it is possible to provide a smooth adhesive force by securing a certain temperature to the adhesive and the panel, and in the edge band, the ductility is increased and the bonding force is improved even when heat is supplied.

However, when the heating devices are simply disposed on the conveyance path, there is a risk of damaging the panel or the member. In particular, in the case of the edge band, since the edge is exposed to heat for a long time, Which is difficult to apply easily.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above and provides a heating device of an edge bending machine capable of improving the reliability of bonding and the efficiency of the process by providing appropriate heat to the previous stage of bonding in the process of bonding the panel and the edge band .

The present invention relates to an edge bending machine having a conveying section for conveying a panel in a longitudinal direction, comprising: a guide section for guiding a movement path of an edge band from the front; a plurality of flow holes formed through front and rear sides of the guide section; And a shutter for opening and closing the flow hole to block heat transmitted from the heating unit to the edge band. The present invention also provides a heating device for an edge bending machine. Accordingly, it is possible to effectively form the temperature for the edge band, and the edge band can be prevented from being damaged by cutting off the heat by the heating portion in the process of stopping or stopping the bonding process.

Preferably, the shutter is disposed in close contact with the rear surface of the guide portion, and movement of the shutter in the process of opening and closing the flow hole can be guided by the guide portion.

In one embodiment, the guide portion includes a guide upper plate portion bent upward from the upper side to engage the driving portion upward, and the shutter portion includes a bent portion coupled to the driving rod that is pulled out from the driving portion, And a plate portion.

In addition, in the closed state of the flow hole by the shutter portion, the gap formed between the air holes between the flow holes and the shutter portion and the guide portion may contain air to reduce heat conducted from the heating portion to the edge band.

In addition, the air conditioner may further include an air supply unit for discharging compressed air to the front surface of the guide unit.

And the discharge port of the air supply portion is disposed so as to be directed to the lower portion of the front surface of the guide portion from above the arrangement of the flow holes.

The heating unit may be a halogen lamp.

According to another embodiment of the present invention, there is provided a liquid crystal display device, further comprising a first sensor unit and a second sensor unit for sensing a pull-in and pull-out of the panel from the transfer unit to the heating unit side, It is possible to transmit the heat of the heating portion to the edge band only in the state of being conveyed.

According to the present invention, the heating of the edge band can be performed at the correct time and position, so that the reliability of the edge bending process can be improved. In particular, since the temperature of the edge band and the panel can be kept constant regardless of the temperature of the outside air, the accuracy and reliability of the process can be improved.

In addition, since the heat of the heating portion is transmitted through the flow hole only when the bonding process is performed when the panel is moved, and heat transfer can be blocked by the shutter portion in the state of stopping the transfer of the edge band, damage to the edge band due to unnecessary heat transfer can be prevented There is an effect.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing a prior art edge bending machine. Fig.
2 is a view for explaining an edge bending machine constituted by the heating device of the present invention.
3 is a side view for explaining the operation of the shutter unit in the heating apparatus of the edge bending machine of the present invention.
4 is a perspective view of a heating device of an edge bending machine according to a preferred embodiment of the present invention.
5 is a configuration diagram of a heating device of an edge bending machine according to a further embodiment of the present invention.

Hereinafter, a heating apparatus for an edge bending machine according to the present invention will be described in more detail with reference to the accompanying drawings.

It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything.

In the following description, when a part is referred to as being 'connected' to another part, it includes not only a direct connection but also a case where another part or device is connected in between. In addition, when a part is referred to as including an element, it is to be understood that the element may include other elements, not the exclusion of any other element, unless specifically stated otherwise.

The present invention is basically an edge bending machine having a conveying portion for conveying a panel in the longitudinal direction, comprising: a guide portion for providing a movement path of an edge band; a plurality of flow holes formed through the front and rear of the guide portion; And a shutter unit for opening and closing the flow hole to block heat transmitted to the edge band through the front surface of the guide unit.

The edge band may be a band of various patterns and materials such as PP, PV, vignetted or patterned paper, and the width and thickness may be selected according to the selection.

In the description of the present invention, a conveying unit in which a plurality of rollers are arranged longitudinally in front of and behind a predetermined frame, and a plate-like panel is conveyed from one side to the other side by means of conveying means such as a conveyor disposed below the conveying unit It will be apparent to those skilled in the art that one can apply the concept of the present invention to various types of edge bending machines capable of attaching bands to the corners of the panel.

2 is a view for explaining an edge bending machine constituted by the heating device of the present invention.

As described above, the edge bander applies the adhesive to the side surface by the application device 1000 while transferring the panels 10 in the longitudinal direction in a time-wise manner, and applies the continuous edge band drawn out from the band supply portion 5010 to the adhesive- It is possible to perform a cutting process after pressure-bonding to the side surface of the panel 10.

The applicator 1000 allows the applicator of the rotary roller type to apply the adhesive supplied through a predetermined injection line (not shown), and in some cases to the adhesive supply device (not shown) through a separate recovery line (Not shown).

The band supply part 5010 is formed in the form of a roll in which an edge band is wound and is disposed adjacent to the side where adhesion is performed in the conveyance system of the panel 10 to continuously take out the edge band, Respectively.

The heating device of the present invention includes a plate-shaped guide portion 5100 for guiding the edge band in the conveying process, and a heating portion 5300 disposed in a direction opposite to the edge band with respect to the guide portion 5100 According to this concept, the heating portion 5300 can provide heat to the panel 10, more precisely to the side of the panel 10 coated with the application device 1000, and at the same time, Heat can be provided together.

The edge band extracted from the band supply portion 5010 is conveyed while closely or closely attached to the front surface of the guide portion 5100 via one or more guide rollers 5101 . In the present invention, since the heat of the heating portion 5300 is emitted from the plurality of flow holes 5110 passing through the front and rear surfaces of the guide portion 5100 and heat can be selectively provided to the heating portion 5300 as an edge band It is preferable that the edge band is closely adhered to at least the front surface of the guide portion 5100 on the side of the flow-through hole 5110. To this end, the tight fitting portion 5102 may be disposed in the front stage of the flow hole 5110 from the viewpoint of the conveyance path of the edge band. For example, the adhered portion 5102 may be formed in a plate shape having elasticity, and may function to push the front surface of the edge band back to come in close contact with the front surface of the guide portion 5100. However, it is needless to say that the tight contact portion 5102 may be replaced with the guide roller 5101 as occasion demands.

The guide portion 5100 can function as a conveying guide for the edge band, pass heat through the flow hole 5110, and function as a partitioning barrier for heat in other portions. Therefore, it is preferable that the guide portion 5100 is formed in a plate shape having a front surface for guiding at least the edge band.

In the description of the present invention, when the application device 1000 and the guide portion 5100 are disposed on the front side of the transfer unit 100 to adhere the edge band to the front side of the panel 10 based on the state shown in FIG. 2 But it is obvious that such an arrangement can be reversed before and after so that adhesion can be performed on the rear side.

Heating of the edge band and / or the panel 10 by the heating unit 5300 in the entire process of transferring the panel 10 can be carried out in an additional step between the application process by the application apparatus 1000, And it is advantageous that the guide portion 5100 is disposed adjacent to the coating apparatus 1000 in consideration of spatial efficiency.

For this purpose, the guide portion 5100 may be arranged to be inclined forward and backward as shown in the drawing, and may be disposed so as to be gradually adjacent to the conveyance portion 100 as the conveyance proceeds.

A heating part 5300 is disposed on the rear side of the guide part 5100 to emit heat. The heating part 5300 is preferably composed of a halogen lamp in consideration of the convenience of checking and controlling the generation of heat . Such a halogen lamp can be formed in a "∪" shape in consideration of a heat generating area, and a heating element such as a tungsten material is embedded in the tubular member of the halogen-filled quartz, Can be performed. However, it is needless to say that the heating unit 5300 may be constituted by various types of heating means such as a resistance body. In consideration of the heating area, two or more heaters 5300 may be disposed in the longitudinal direction.

This heating portion 5300 allows simultaneous heating of the adhesive surface of the edge band and the side surface of the panel 10 to which the adhesive is applied so that the bonding step can be performed smoothly. In particular, when the atmospheric temperature in the working process is low, the heating by the heating unit 5300 can further improve the reliability of the operation.

In the concept of the present invention, a plurality of flow-through holes 5110 are formed through the front and rear surfaces of the guide portion 5100 and the heat of the heating portion 5300 is mainly applied to the edge bands disposed on the front side of the flow- It can be delivered in a copied manner. The flow hole 5110 may be formed corresponding to the position of the heating portion 5300 in the front surface of the generally planar guide portion 5100. However, if the flow hole 5110 is continuously opened and the movement of the edge band is stopped while the heating unit 5300 is continuously heated or the residual heat remains, the edge band is inevitably damaged due to the continuous heat . The problems caused by such deformation and permanent damage of the edge band are as described in the prior art.

In order to solve such a problem, the present invention may include a shutter unit 5200 that can selectively open and close the flow-through hole 5110 between the heating unit 5300 and the guide unit 5100.

The shutter portion 5200 may function to close the rear surface of the guide portion 5100 in which the flow hole 5110 is formed while moving in the vertical direction. However, it should be understood that the shutter 5200 can be moved in the width direction by the operation of the driving system. If the shutter 5200 can selectively shield the heat transfer to the plurality of the flow holes 5110, Forms and methods may be applied.

3 is a side view for explaining the operation of the shutter unit in the heating apparatus of the edge bending machine of the present invention.

As described above, the shutter unit 5200 can function to shield the heat from the rear side to the front side of the guide unit 5100, and the separation between the guide unit 5100 and the shutter unit 5200 and the spacing between them can be selectively performed The front surface of the shutter unit 5200 is in close contact with the rear surface of the guide unit 5100 in which the flow hole 5110 is formed so that heat can be blocked by convection, . At this time, the rear surface of the guide portion 5100 may function as a moving guide surface for moving the shutter portion 5200 in the up and down direction, for example.

In this embodiment, it is shown that the heating unit 5300 is composed of a '∪' type halogen lamp and can receive external control power through the heating control line 5301, but the present invention is not limited to this embodiment.

The guide portion 5100 supports the driving portion 5120 on the upper side. For this purpose, the guide portion 5100 may include a guide upper plate portion 5140 bent backward from the front upper side of the plate shape. The guide upper plate portion 5140 fixedly supports the driving portion 5120 on the upper side and allows the driving rod 5130, which can be drawn out from the driving portion 5120, to pass therethrough.

The driving unit 5120 may be configured as a linear driving unit such as a stepping motor or a rack-and-pinion. However, when the shutter unit 5200 opens and closes the flow-through hole 5110, Is preferably controlled. For this, the driving unit 5120 may be configured as a pneumatic piston and move the shutter unit 5200 by moving the driving rod 5130 in and out by receiving a controlled pressure through the driving control line 5121.

The shutter portion 5200 may include a bent portion 5220 bent backward to engage the driving rod 5130 on the upper side and a shutter plate portion 5210 extending downward from the front end side of the bent portion. The width and height of the shutter plate portion 5210 can be determined by the width and height of the flow holes 5110 arranged. At this time, it is preferable that the front surface of the shutter plate portion 5210 is closely attached to the rear surface of the guide portion 5100.

A driving control line 5121 is connected to control the driving unit 5120, and the driving control line 5121 performs transmission of air pressure. In this case, the drive control line 5121 may be connected to a pneumatic pump or valve. Also, the heating unit 5300 can be operated by receiving an on-off signal or the like through the heat generation control line 5301, and will be described later in this regard.

4 is a perspective view of a heating device of an edge bending machine according to a preferred embodiment of the present invention.

The guide part 5100 is formed in a plate shape as described above and performs the function of heating the edge band on the side where the flow hole 5110 is formed while guiding the edge band from the front side through the heat of the heating part 5300 do.

It is preferable that the height of the guide part 5100 is higher than the height of the guide part 5100 as shown in the drawing for the purpose of supporting the driving part 5120 and the guide part 5100 ) On the other side of the front side. Such a flow-through hole 5110 can be arranged at a height enough to apply heat to the edge band, and this height and width are optional.

The shutter unit 5200 and more precisely the shutter plate unit 5210 can be disposed in close contact with the rear surface of the guide unit 5100 in which the flow hole 5110 is formed to prevent the heat transfer from the heating unit 5300 At this time, it should be noted that the pores constituted by the flow-through holes 5110 contain air and thus the heat that is conducted can be reduced. In addition, since the rear surface of the shutter portion 5200 and the guide portion 5100 are not integrated, the heat transfer can be further reduced in the gap between them.

The air holes formed through the flow holes 5110 can simultaneously perform the function of heat radiation in operation of the shutter unit 5200. In consideration of the cooling efficiency, the air supply unit 5400 May be additionally disposed.

The air supply unit 5400 discharges air having a predetermined pressure supplied through the air supply line 5401 toward the flow hole 5110 and forms an air curtain between the edge band and the front surface of the guide unit 5100, And functions as a cooling function.

For this purpose, the discharge port of the air supply part 5400 is preferably formed to be downwardly facing the front surface of the guide part 5100. The air supply part 5400 may be formed so as to be wide at the upper side of the arrangement of the flow holes 5110 so that the discharge port of the air supply part 5400 covers the width at which the flow holes 5110 are arranged. It goes without saying that two or more may be arranged.

5 is a configuration diagram of a heating device of an edge bending machine according to a further embodiment of the present invention.

The fact that the applicator 1000 applies the adhesive to the side in the process of transferring the panel 10 to the transfer part 100 and that the heating part 5300 can perform the heating on the edge band and the side surface of the panel, same. The guide portion 5100 may be disposed at a later stage of the coating apparatus 1000 and the shutter portion 5200 and the heating portion 5300 may be formed at the rear side. In addition, an air supply part 5400 may be disposed on the front side of the guide part 5100, and a description overlapping with the above description will be omitted.

As described above, in the present invention, since the heat of the heating unit 5300 transmitted by the edge band is blocked by the shutter unit 5200, the heating can be performed in an edge band only in a stable situation.

At this time, it is preferable to additionally configure at least one sensing unit in the previous stage and / or the following stage of the heating unit 5300 on the conveyance path of the conveyance unit 100 in order to accurately set the operating point of the shutter unit 5200.

The sensing unit may include a first sensor unit 5021 disposed on the inlet side of the panel 10 and a second sensor unit 5022 disposed on the discharge side of the panel 10, And is defined based on the heating process of the heating unit 5300.

In order to control the shutter unit 5200, the control unit 200 transmits a control signal indicating whether the driving unit 5120 is operated through a predetermined algorithm. In a preferred embodiment, the first sensor unit 5021 transmits the control signal to the panel 10, When the movement of the panel is detected by the second sensor unit 5022, the shutter unit 5200 is operated and the flow hole 5110 is opened to heat the edge band, 5200 to close the flow hole 5110 and stop the heat transfer to the edge band.

The sensor units may be implemented with various movement sensing means such as a reed switch or an optical sensor.

The control unit 200 receives a sensing signal for panel movement of the first sensor unit 5021 and the second sensor unit 5022 through the sensing line 5023 to determine whether the shutter unit 5200 is open, The operation signal of the driving unit 5120 may be transmitted to the driving control line 5121 to transmit the control current or operate the pneumatic system. It goes without saying that it is also possible to judge whether the heating unit 5300 is operated and to control the control current applied to the heating unit 5300 through the heating control line 5301 according to circumstances.

The heating device of the edge bending machine according to the present invention as described above has an advantage that the heating of the edge bands can be performed at the correct time and position and the reliability of the edge bending process can be improved. Specifically, since the temperature of the edge band and the panel can be constantly maintained regardless of the temperature of the outside air, the accuracy and reliability of the process can be improved.

In addition, since the heat of the heating portion can be transmitted through the flow hole only when the bonding process is performed when the panel is moved, and the heat transfer can be blocked by the shutter portion in the state of stopping the transfer of the edge band, an advantage .

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the content of the following claims.

10: Panel 100:
200 ... Control unit 1000 ... Coater
5010 ... band supply unit 5021 ... first sensor unit
5022 ... second sensor unit 5023 ... sensing line
5100 ... guide portion 5101 ... guide roller
5102 ... tight contact portion 5110 ... flow hole
5120 ... driver 5121 ... drive control line
5130 ... drive rod 5140 ... guide top plate
5200 ... shutter portion 5210 ... shutter plate portion
5220 ... bent portion 5300 ... heating portion
5301 ... heat generation control line 5400 ... air supply unit
5401 ... air supply line

Claims (8)

An edge bending machine having a conveying portion for conveying a panel in a longitudinal direction,
A guide portion 5100 for guiding the movement path of the edge band from the front side;
A plurality of flow holes (5110) formed through the front and rear sides of the guide portion;
A heating part 5300 disposed between the guide part and the conveying part and emitting heat; And
And a shutter unit (5200) for opening and closing the flow hole to block heat transmitted from the heating unit to the edge band.
The method according to claim 1,
Wherein,
And the movement in the course of opening and closing the flow-through hole is guided by the guide portion.
The method according to claim 1,
The guide portion
And a guide upper plate portion 5140 which is bent upward from above to engage the driving portion 5120 on the upper side,
Wherein,
A bent portion 5220 coupled to the driving rod 5130 that is pulled in and out of the driving portion and a shutter plate portion 5210 disposed in close contact with the rear surface of the guide portion.
The method according to claim 2 or 3,
Wherein air is contained in a gap formed between the gap between the flow holes and the shutter portion and the guide portion in the closed state of the flow hole by the shutter portion to reduce the heat conducted to the edge band from the heating portion.
The method according to claim 1,
And an air supply part (5400) for discharging compressed air to the front surface of the guide part.
6. The method of claim 5,
The discharge port of the air supply unit
And is disposed so as to face the front lower portion of the guide portion above the arrangement of the flow holes.
The method according to claim 1,
The heating unit includes:
A heating device of an edge bending machine comprising a halogen lamp.
The method according to claim 1,
And a first sensor unit (5021) and a second sensor unit (5022) for detecting the pull-in and pull-out of the panel from the transfer unit to the heating unit side,
Wherein,
And the heat of the heating unit is transmitted to the edge band only in a state in which the panel is being conveyed according to the sensing signals of the first sensor unit and the second sensor unit.

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