KR20080082864A - Heating roller with heat-belt - Google Patents

Abstract

An instant fuser using a rotary heating belt is provided to enable plural terminal supports connected to heating units to be rotated along the circumference of an electrode roller on the basis of the electrode roller to heat the heating units sequentially, thereby reducing power consumption to the heating area of the heating belt. An instant fuser using a rotary heating belt(100) includes the heating belt, an electrode roller(200), a sub roller(300), and plural press rollers(400). The heating belt includes plural heating units, plural terminal supports(120), an insulating unit(130), an external insulating material, and a coating layer. Both diverged end portions of wire rods are respectively electrically connected. Each arranged body is formed to be arranged at the same interval. The plural terminal supports correspond to the both end portions of the heating units to be conductive to apply an electric current to the both end portions of the heating units.

Description

Instantaneous fixing machine using rotary heating belt {Heating roller with heat-belt}

1 is an exploded perspective view showing a combined state of the heating belt of the present invention,

2 is a side view according to the present invention,

3 is an exploded view of a heating belt according to the present invention;

4 is a cross-sectional view taken along line A-A of the heating belt according to the present invention;

5 is a cross-sectional view taken along line B-B of the heating belt according to the present invention;

Figure 6 is a cross-sectional side view according to the prior art.

-Explanation of symbols for the main parts of the drawings-

100 ... heating belt 110 ... heating element

111 ... both ends 120 ... terminal block

130 ... insulation 140 ... external insulation

150 ... coating layer 160 ... auxiliary insulation

200 ... electrode roller 300 ... auxiliary roller

400 ... pressure roller

The present invention relates to an instantaneous fixing device using a rotary heating belt, the technical spirit of which is built in a plurality of heating elements divided inside the belt film, the plurality of terminal blocks connected to each of the heating elements in the circumferential direction based on one electrode roller It is formed to sequentially heat the heating element by rotating along the bar, which is intended to improve the power consumption compared to the heating area of the heating belt, and is formed to enable preheating and uniform heating of the belt film according to toner fixing. It relates to a momentary fixing machine using a rotary heating belt.

In general, a laser printer has a high printing speed, high resolution, low noise, and various recording papers, so that the printer is not only used alone but also widely used for copying machines and fax machines using electrophotographic equipment.

As a result of the above-described laser printer printing process, when image data of a computer is transmitted to a printer, the image data is converted into laser light by the optical unit and scanned by the photosensitive member, and the laser light scanned by the photosensitive member receives the light as a conductor. A potential difference is generated between the changed and unlighted portion, which forms a latent image on the photoreceptor.

At this time, the photosensitive member on which the latent image is formed adheres to the latent image while passing through the developing portion, and the recording paper passes between the injection transfer chargers, and the toner attached to the latent image of the photosensitive member is transferred to the recording paper, and then the recording paper is fixed. Heat and pressure are applied to the toner as it passes through the device, causing the toner to stick to the recording paper.

This fixing process is to fix the toner image transferred to the paper in the transfer process by applying heat and pressure, and is usually performed by a fixing unit comprising a pair of rollers rotating against each other, wherein the pair of rollers constituting the fixing unit One is a press roller (P / R) and the other is a heating roller.

At this time, the heating roller is installed in the discharge side section of the inside of the machine, and when the recording paper with visible image is discharged by the drum to be fixed by heating and pressing the transferred characters, pictures, etc. on the paper, which is a predetermined heat generation It requires a means.

As a conventional heating roller, as shown in FIG. 6, the heating roller 30 is installed on the support bearing of the apparatus main body to fix the visible image formed by the toner t, and the inside of the heating roller. Halogen lamp 40 which is installed and generates high heat radiant heat to generate heat from the heating roller 30, and a black coating 45 is formed on the inner surface of the heating roller 30, the halogen lamp 40 It is formed to absorb the heating temperature generated from the more quickly.

At this time, the heat of the black coating portion 45 performs the function as it is transferred to the outside of the heating roller (30).

However, the above-described conventional heating roller 30 is a method in which the high temperature heat generated from the halogen lamp 40 is indirectly heated on the surface of the heating roller 30 depending on a simple air flow, that is, convection. 40) The heating time of the whole apparatus is reduced until heat is transferred to the outside (heating roller), and the printing speed of the overall device is reduced, while the thermal response is not achieved due to an even distribution on the surface of the heating roller 30. There arises a problem that productivity and workability are deteriorated, such as uneven fixability due to deposition.

The present invention is to solve the above-described problems, the technical gist of the plurality of heating elements are built in the interior of the belt film, a plurality of terminal blocks respectively connected to the heating element along the circumferential direction on the basis of one electrode roller It is formed so as to sequentially heat the heating element, which is intended to improve the power consumption compared to the heating area of the heating belt, and is formed to enable preheating and uniform heating of the belt film according to toner fixing. The purpose is to provide a momentary fixing device using a rotary heating belt.

In order to achieve the above object, the present invention provides a heating device for printing machine instantaneous fixing device, wherein both branch portions 111 of the wire rod are connected to each other so as to be energized. 110, a plurality of terminal blocks 120 corresponding to encourage electricity supply with both ends 111 of the heating element, and an insulating part formed so that the current is short-circuited by a section set when the plurality of terminal blocks 120 are disposed in one direction. 130 and an outer insulating material 140 formed to cover the upper and lower surfaces of the heating element 110 and one side surface of the terminal block 120 and to insulate, and a copy paper coated on the outer circumferential surface of the outer insulating material 140. A heating belt 100 provided with a coating layer 150 to facilitate rapid release of (P); An electrode roller (200) formed on the other side of the non-insulated terminal block (120) of the heating belt and being rotated while supplying power; An auxiliary roller 300 formed on an outer circumferential surface side of the heating belt 100 so as to rotate corresponding to the electrode roller 200; It is disposed at the lower apex of the heating belt 100 to form a nip, while forming a set, the heating belt 100 and the copy paper P are rotated in close contact with each other in the upper and lower portions, and the toner t is A plurality of pressing rollers 400 pressurized to be fixed; It is made up.

At this time, the heating belt 100 is preferably formed so that the auxiliary insulating material 160 is applied to the gap space (S) of the external insulating material 140 is generated by inserting the heating element (110).

The following describes the invention in more detail with reference to the accompanying drawings.

First, as shown in Figures 1 to 5, the present invention is an induction heating type instantaneous fixing device by an external power source, which is a heating belt 100 for providing a substantial heating source for fixing to the radiation paper (P), and the heating belt Electrode roller 200 for supplying the original power to the 100, the auxiliary roller 300 is formed to support the heating belt 100 in conjunction with the electrode roller 200 and the heating belt 100 Based on the upper and lower contact (pressure) is made of a set of pressing roller 400 is formed to form a nip (Nip) portion.

Accordingly, the heating belt 100 is largely composed of a heating element 110, a terminal block 120, an insulating portion 130, an external insulating material 140, and a coating layer 150.

At this time, the heating element 110 is formed so that the both ends of the branch 111 of the wire rod are connected to each other, but each body arranged in the same manner is arranged at equal intervals at a set interval.

This is for the plurality of heating elements to be independently supplied to each section by the terminal block 120 to be described later.

At this time, the heating element 110 is a plurality of heating elements 110 on the basis of the unfolded external insulation material 130 (polyimide) in the form of a square plate, as shown in the expanded view of the heating belt 100 of the present invention shown in FIG. Built-in (as stacked from the top to the bottom), the heating element 110 is formed to heat the set area spaced apart from each other by a predetermined interval in one direction.

That is, the heating element 110 of the heating belt is formed of a resistance heating element having a set length, it is preferable that the pattern is repeated so that the body is uniformly generated in the direction of the rotation axis to heat the set area with one wire.

In other words, if the shape of the above-described heating element 110 is the same concept as that of the zigzag shape of 'Lee (L)', it is satisfied if it is a repetitive form such as 'S' or 'Z'. .

At this time, the resistance heating element 110 is preferably a stainless steel (SUS304 series) or phosphor bronze-based heating element.

At this time, both ends 111 of the heating element are formed to be in contact with the terminal block 120 disposed on the left and right, respectively.

In other words, when power is supplied to the electrode rollers 200 to be described later, the electrode rollers 200 may conduct electricity with the terminal block 120, and the terminal block 120 may be connected to both ends 111 of the heat generating element 110. Power is supplied to promote heat generation.

As shown in FIG. 2, the heating element 110 is a cylindrical roller according to the use state of the heating belt 100 as an embodiment. It is formed to generate heat through each independent power supply for.

As such, the purpose of receiving independent power supply is to minimize electric power consumption while minimizing power consumption compared to incoming power, while maximizing heating efficiency.

At this time, the body length and the bent interval of the heating element 110 is preferably set according to the specifications and capacity of the heating belt and the printing machine.

Meanwhile, as illustrated in FIGS. 3 and 4, the terminal block 120 is provided at both left and right ends of the external insulating paper 140 in one direction, and the terminal block 120 is positioned on the upper end of the external insulating paper based on the illustrated state. It is formed so that the lower end is insulated and the upper end is exposed in a free state, while one end is formed to make electrical contact with both ends of the heating element.

That is, as shown in Figure 2, when the outer insulating paper 140, the heating belt 100 is dried in a cylindrical shape to secure the insulation on the outer peripheral surface, the inner peripheral surface open and exposed the upper end of the electrode roller 200 and the power supply source; Interviewed and rotated to form an electrical current.

In other words, the terminal block 120 is formed to serve as a switch to facilitate the electrical connection between the electrode roller 200 and the heating element (110).

In this case, as shown in FIG. 3, the insulation unit 130 is formed such that the current is short-circuited by a section set when the plurality of terminal blocks 120 are disposed in one direction.

This is because when the terminal block 120 is formed integrally, the power is always supplied to the plurality of heating elements 110 to cause waste of power more than necessary, so that the power supplied to the electrode roller 200 is prevented from generating the heating belt 100. It is formed to sequentially energize the plurality of terminal blocks 120 in accordance with the circumferential rotation of the).

In other words, by separately heating the divided heating elements 110 during the initial operation, the preheating time is shortened, the printing speed is improved, and there is an advantage of preventing overheating and minimizing power consumption as a whole.

In other words, the electrode roller 200, which will be described later, is formed such that power is cut off by the insulation unit 130 formed between the plurality of terminal blocks 120 when the heating roller 100 rotates.

At this time, the separation section of the insulation unit 130 is preferably set according to the specifications and capacity of the heating belt and the printing device.

On the other hand, the external insulating material 140 is formed to surround the upper and lower surfaces of the heating element 110 and one side of the terminal block 120 to achieve insulation.

In this case, the external insulating material 140 is preferably a material of polyimide.

In addition, the outer circumferential surface of the outer insulating material 140 is preferably provided with a coating layer 150 to facilitate rapid release of the copy paper (P).

In this case, the heating belt 100 is formed such that the auxiliary insulating material 160 having good bonding force with the external insulating material 140 is applied to the gap space S of the external insulating material 140 generated by inserting the heating element 110. It is preferable.

This is to ensure more stable insulation by the heating element 110, as shown in Figure 5, the inter-space portion generated from the heating element 110 embedded between the external insulating material 140, that is, the auxiliary insulating material 160, In one embodiment, the liquid polyimide is coated to form more reliable insulation.

Accordingly, the electrode roller 200 is formed to rotate while supplying power by interviewing the other side of the non-insulated terminal block 120 of the heating belt.

That is, the electrode roller 200 is formed to contact the surface of the terminal block 120 opened on the inner peripheral surface side of the heating belt as shown in Figures 2 to 4 to energize the power.

In this case, the auxiliary roller 300 is formed on the outer circumferential surface side of the heating belt 100 to correspond to the electrode roller 200 and to interlock and rotate.

In other words, the terminal block 120 is formed to pressurize both sides of the terminal block and conduct high temperature heat so as to conduct more rapid and stable heating to the terminal block 120.

On the other hand, the plurality of pressure rollers 400 are disposed at the lower apex of the heating belt 100 to form a nip, while forming a pair of heating belt 100 and the copy paper (P), The toner t is pressed in such a manner as to rotate in close contact with each other.

That is, the pressure roller 400 is formed such that the toner is substantially fixed to the copy paper P, and the body is preferably formed of a silicone rubber of a cushioning body.

In the present invention, while the plurality of divided heating elements 110 are embedded in the heating belt 100, the heating structure is independently and sequentially made according to the rotation of the heating belt 100, while the manufacturing structure is simple, but the power consumption is improved. And there is an advantage that the heating efficiency is improved.

As described above, the present invention includes a plurality of heating elements divided inside the belt film, and the plurality of terminal blocks respectively connected to the heating elements are rotated along the circumferential direction with respect to one electrode roller to sequentially heat the heating elements. It is formed so as to improve the power consumption compared to the heating area of the heating belt, it is effective to enable the pre-heating and uniform heating of the belt film according to the toner fixing.

Claims (2)

In the instantaneous fixing machine for printing equipment, Branched both ends 111 of the wire rod are connected to each other, but the heating element 110 is formed so that each of the same body is arranged at equal intervals at a predetermined interval, and correspond to encourage the energization of both ends 111 of the heating element A plurality of terminal blocks 120, an insulating part 130 formed to short-circuit the electric current by a set section when the plurality of terminal blocks 120 are disposed in one direction, and upper and lower surfaces of the heating element 110 and the terminal block 120. Outside insulation 140 is formed to surround one side of the) to facilitate insulation, and the heating belt is provided with a coating layer 150 is coated on the outer peripheral surface of the outer insulation 140 to facilitate rapid release of the copy paper (P) 100; An electrode roller (200) formed on the other side of the non-insulated terminal block (120) of the heating belt and being rotated while supplying power; An auxiliary roller 300 formed on an outer circumferential surface side of the heating belt 100 so as to rotate corresponding to the electrode roller 200; It is disposed at the lower apex of the heating belt 100 to form a nip, while forming a set, the heating belt 100 and the copy paper P are rotated in close contact with each other in the upper and lower portions, and the toner t is A plurality of pressing rollers 400 pressurized to be fixed; Instantaneous fixing device using a rotary heating belt, characterized in that made. The method of claim 1, wherein the heating belt 100 Instantaneous fixing device using a rotary heating belt, characterized in that the auxiliary insulation material 160 is formed to be applied to the gap space portion (S) of the external insulation material 140 is generated by inserting the heating element (110).

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