KR20040007852A - Method for breaking away a metal film of backup board and system for performing the same - Google Patents

Abstract

PURPOSE: A method and an apparatus for releasing metal film from backup board are provided to secure economic advantage and prevent environmental pollution by heating both sides of the backup board, thereby releasing the metal film from the backup board so that the whole quantity of the metal film disused is recycled. CONSTITUTION: The apparatus comprises an injection part(110) comprising a loading table(112) comprising a loading plate(114) on which a plural guiding slots extended from one side to the other side are formed with being spaced apart from each other in a certain distance, and a hopper(118) fixed to an upper part of the loading plate to constantly load backup boards(10); first transfer part(120) comprising first rotation motor(122) mounted on one side of the loading table, first conveyor shaft(124a) and second conveyor shaft(124b) any one of which is rotationally connected to the first rotation motor and arranged at a lower part of one side or the other side of the guiding slots, and a conveyor belt(126) which is wound around the first conveyor shaft and second conveyor shaft, and on the outer circumferential surface of which a plurality of guiding protrusions(136) for guiding the backup boards one by one by passing through the guiding slots are projected; a releasing part(140) comprising a releasing table(142) arranged at one side of the loading table to receive the backup boards guided by the first transfer part; second transfer part(150) comprising second rotation motor(152) mounted on one side of the releasing table, and a plurality of transfer rollers(158) which are mounted on an upper part of the releasing table with being spaced apart from each other in a certain distance, which are rotationally connected to each other, and any one of which is rotationally connected to the second rotation motor; heating parts(170) arranged between the transfer rollers with being oppositely directed to each other to heat upper and lower surfaces of the backup boards guided by the second transfer part; and a cooling part(190) comprising a cooling tank which is arranged at one side of the releasing table, and in which cooling water is filled to cool burners(176) heated, and cooling water injection pipe and cooling water discharge pipe extended from the cooling tank(192) and mounted on the burners.

Description

Method for breaking away a metal film of backup board and system for performing the same}

The present invention relates to a method for peeling a metal film of a backup board and a device for performing the same, and more particularly, by heating both sides of a backup board while peeling a metal film while sequentially feeding and transporting a backup board bonded to a metal film on both sides, The present invention relates to a method for peeling a metal film of a backup board and an apparatus for performing the same, as well as an economical advantage of being able to recycle the disposed metal film.

In general, in order to attach and mount a plurality of components on a printed circuit board, a plurality of holes must be processed in the PCB. In order to process such holes, a desired hole is processed under a state in which a plurality of PCs are stacked and fixed on an upper portion of the backup board while a backup board is placed on a predetermined table. At this time, the above-mentioned backup board to reduce the wear of the drill blade for processing holes, the heat generated during the drilling work, to prevent the breakage of the drill and the generation of holes of the holes (holes) to be processed The metal film is bonded. Such a metal film is a situation in which the silver film made of copper, zinc and nickel alloys is adopted.

However, there is a problem that the backup board is disposed of entirely because it is impossible to repeatedly use the hole once the hole is processed. As a result, the production cost of PCB is increased, and the backup board is not only produced again, but also causes environmental pollution due to disposal.

The present invention has been made to solve the conventional problems as described above, an object of the present invention by heating the both sides of the backup board while sequentially transferring the backing board bonded to the metal film on both sides, by peeling the metal film, all the waste The present invention provides a method for peeling a metal film of a backup board and an apparatus for performing the same, as well as an economical advantage of being able to recycle the disposed metal film.

1 is a front view showing a metal film peeling apparatus of the backup board according to the present invention,

Figure 2 is a plan view showing a metal film peeling apparatus of the backup board according to the present invention,

Figure 3a is an enlarged perspective view of the burner shown in Figure 1,

FIG. 3B is a cross sectional view along line A-A in FIG. 3A, and

3C is a bottom view of the burner shown in FIG. 3A.

Explanation of symbols on the main parts of the drawing

100: metal film peeling apparatus of the backup board 110: input part

112: loading table 114: loading plate

116: guide 118: loading hopper

120: first transfer unit 122: first rotation motor

124a: first conveyor shaft 124b: second conveyor shaft

126: conveyor belt 136: guide protrusion

140: peeling part 142: peeling table

150: second transfer unit 152: second rotation motor

158: pressure roller 170: heating unit

176: burner 178: adjusting screw shaft

180: fuel mixture hole 182: cooling water input hole

186: first crater 188: second crater

189 input tube 190 cooling unit

192: cooling tank 194: cooling water input pipe

196: cooling water discharge pipe

In order to achieve the object of the present invention as described above, the present invention,

Stacking a backup board of which hole processing of the PC is completed;

Guiding the stacked backup boards one by one;

Forcibly feeding back up the backup boards guided one by one using a plurality of pressure rollers;

Heating the upper and lower surfaces of the backup board to be conveyed and disposed between the pressure rollers; And

It provides a method for peeling a metal film of a backup board comprising the step of manually peeling off the metal film of the backup board heated in the step.

In addition, the present invention,

A loading table having a loading plate having a plurality of guide holes having a predetermined interval and extending from one side to the other side, and a loading portion fixedly disposed on an upper portion of the loading plate to stack the backup board constantly;

A first conveyor motor mounted on one side of the loading table, a first conveyor shaft and a second conveyor shaft disposed below one side and the other side of the guide hole while being rotatably connected to the first rotary motor, and the first conveyor A first conveying part having a conveyor belt which is wound around the shaft and the second conveyor shaft and protrudes a plurality of guide protrusions through the guide hole to guide the backup board one by one;

A peeling unit having a peeling table disposed at one side of the stacking table and receiving a backup board guided by the first transporting unit;

A second rotary motor mounted on one side of the separation table, and a plurality of pressure rollers each rotatably connected to each other while being mounted at an upper portion of the separation table and rotatably connected to the second rotary motor. A second transfer unit;

A heating unit arranged to face up and down between the pressure feeding rollers to heat the upper and lower surfaces of the backup board guided by the second conveying unit; And

Peeling the metal film of the backing board including a cooling tank filled with cooling water so as to cool the burner heated on one side of the separation table, and a cooling unit having a cooling water introduction pipe and a cooling water discharge pipe extending from the cooling tank and mounted to the burner. Provide the device.

As described above, according to the present invention, by heating the both sides of the backup board while peeling the metal film while continuously feeding the backing board bonded to the metal film on both sides, it is possible to recycle the metal film that is disposed of entirely discarded economical advantage In addition to this, environmental pollution can be prevented.

Hereinafter, a method of peeling a metal film of a backup board and an apparatus for performing the same will be described with reference to the accompanying drawings.

1 is a front view showing a metal film peeling apparatus of the backup board according to the present invention, and FIG. 2 is a plan view showing a metal film peeling apparatus of the backup board according to the present invention.

1 and 2, the metal film peeling apparatus 100 of the backup board according to the present invention is the input unit 110, the first transfer unit 120, the peeling unit 140, the second transfer unit 150, heating The unit 170 and the cooling unit 190 are provided.

First, the input unit 110 includes a loading table 112 and a loading hopper 118 fixedly disposed on the loading table 112. In the upper portion of the stacking table 112, a stacking board 114 on which the back-up board 10 on which the PCB hole processing is completed is mounted is provided. The loading plate 114 is formed with a plurality of guide holes 116 having a predetermined interval and extending from one side to the other side. On the other hand, the loading hopper 118 has a tapered shape from the upper side to the lower side is disposed on the upper portion of the loading plate (114). The first guide groove 119a and the second guide groove 119b which are the same as the height and width of the backup board 10 are formed on one lower side and the other side of the loading hopper 118. In the input unit 110 formed as described above, the first transfer unit 120 is disposed.

The first conveying unit 120 includes a first rotating motor 122 disposed on one side of the stacking table 112, a first conveyor shaft 124a and a second disposed adjacent to one side and the other lower portion of the guide hole 116. The conveyor shaft 124b and the conveyor belt 126 are wound around the first conveyor shaft 124a and the second conveyor shaft 124b and rotate. At this time, the first rotary shaft 128 is protruded to the first rotary motor 122, the first guide sprocket 130 is mounted on the first rotary shaft 128. In addition, a second guide sprocket 134 connected to the first guide sprocket 130 by the first guide chain 132 at one end of the first conveyor shaft 124a and the second conveyor shaft 124b. Is mounted. On the other hand, on the outer circumferential surface of the conveyor belt 126 wound around the first conveyor shaft 124a and the second conveyor shaft 124b and extends through the guide hole 116, the first guide groove 119a and the second guide groove A plurality of guide protrusions 136 that do not interfere with 119b are formed at predetermined intervals. The peeling part 140 is disposed on one side of the input part 110 and the first transfer part 120 formed as described above.

The peeling unit 140 is disposed on one side of the loading table 112 and includes a peeling table 142 having an open top. The peeling table 142 is provided with an alignment table 144 on the upper side adjacent to the loading table 112, and extends when the upper side of the peeling table 142 has a predetermined inclination toward the lower side of the radial peeling table 142. The chute plate 146 is provided. On the other hand, the alignment groove 148 is formed on the upper surface of the alignment table 144 extending narrower from one side of the alignment table 144 to the other side of the alignment table 144. The second transfer part 150 and the heating part 170 are disposed in the peeling part 140 formed as described above.

First, the second transfer unit 150 is provided with a second rotary motor 152 and a plurality of pressure rollers 158 disposed on one side of the separation table 142. At this time, the second rotating shaft 154 protrudes from the second rotating motor 152, and the first peeling sprocket 156 is mounted to the second rotating shaft 154. Meanwhile, the pressure roller 158 connects the plurality of first support plates 160a and upper portions of the first support plates 160a extending vertically upwards at predetermined intervals on both sides of the upper portion of the separation table 142. And a plurality of second support plates 160b and a pair of first rollers 162a and second rollers 162b disposed up and down between the first support plates 160a facing each other. . An extension of each of the second rollers 162b extends through the first support plate 160a, and a second peeling sprocket 164a and a third peeling sprocket 164b are mounted on the extension. At this time, any one of the second peeling sprocket 164a is connected to the first peeling sprocket 156 by the first peeling body 166, and each of the second peeling sprockets 164a and the third peeling sprocket 164b is provided. Is pivotally connected by a plurality of second release bodies 168. Preferably, although only four pressure rollers 158 are shown in FIG. 1 of the present invention, four or more pressure rollers 158 may be disposed. Thus, the heating part 170 is arrange | positioned between the feeding rollers 158 arrange | positioned at predetermined spaces.

The heating unit 170 includes a plurality of third support plates 172 extending vertically to the upper and lower portions of the peeling table 142 between the respective first support plates 160a disposed on the peeling table 142. And a fourth support plate 174a and a fifth support plate 174b connecting upper and lower portions of each third support plate 172, and adjacent to the upper and lower portions of each third support plate 172. It has a plurality of burners 176 arranged to face each other in position. At this time, each burner 176 is fixed by the adjustment screw shaft 178 penetrating the fourth support plate 174a and the fifth support plate 174b. The fixed burner 176 (see FIGS. 3A to 3C) has a rectangular parallelepiped shape extending to both sides of the third support plate 172 facing each other. A fuel mixing hole 180 having both ends closed is formed at an inner central portion of the burner 176, and cooling water injection holes 182 penetrating through the burner 176 are formed at both radially lower sides of the fuel mixing hole 180. do. At this time, the first crater 186 extending from the bottom of the burner 176 to the radially lower portion of the fuel mixing hole 180 is formed from one side to the other side of the fuel mixing hole 180, and each of the first craters 186. Between both sides and each of the first crater 186 is a second crater 188 is formed in communication with the fuel mixture hole 180. At this time, the diameter of the first crater 186 is larger than the diameter of the second crater 188. On the other hand, on both sides of the upper surface of the burner 176 corresponding to the first crater 186 and the second crater 188, an elbow-shaped injection tube 189 into which fuel and air are mixed is disposed. Preferably, an ignition torch (not shown) is provided so that gas is injected adjacent to the first crater 186 and the second crater 188 of each burner 176 to ignite by ignition of the electrode. ) May be arranged. As such, the cooling unit 190 is disposed at one side of the peeling unit 140 in which the second transfer unit 150 and the heating unit 170 are disposed.

The cooling unit 190 includes a cooling tank 192 filled with cooling water, a cooling water input pipe 194 extending from the cooling tank 192 and connected to one side of each cooling water injection hole 182 of the burner 176. Likewise, the cooling water discharge pipe 196 extends from the cooling tank 192 and is connected to the other side of the cooling water injection hole 182 of the burner 176.

Hereinafter, the state of peeling the metal film of the backup board 10 by using the metal film peeling apparatus 100 of the backup board formed as described above will be briefly described.

First, the fuel of each burner 176 of the heating unit 170 under the state in which the backup board 10 having completed hole processing of the printed circuit board is laminated on the input unit 110 (step S1). And burner at the same time while igniting burner 176. In this case, the fuel uses liquefied petroleum gas (Liquefied Petroleum Gas). When the burner 176 is ignited as described above, the coolant in the cooling tank 192 continuously circulates through the coolant discharge pipe 196 through the coolant input pipe 194 and the coolant input hole 182. As such, when the backup board 10 is stacked and the heating unit 170 and the cooling unit 190 operate, the backup board 10 stacked in the loading hopper 118 of the input unit 110 is transferred to the first transfer unit 120. ) And transfer one by one (step S2). In this way, the backup board 10 conveyed by the first conveying unit 120 is forcedly conveyed by the pressure feeding rollers 158 arranged at a predetermined interval and arranged up and down (step S3). At this time, the upper and lower surfaces of the backup board 10 forcibly fed by the pressure roller 158 are heated by the heating unit 170 disposed between the pressure rollers 158 (step S4). . The adhesive between the backing board 10 and the metal film heated by the heating unit 170 is melted in the liquid phase. At this time, the worker peels off the metal film by hand (step S5). Preferably, the backup board 10 is heated to a temperature of 700 ~ 1000 ℃ in a completely dried state, when the moisture remains in the backup board 10 is heated to a temperature of 1000 ~ 1200 ℃.

As described above, the metal film peeling method of the backup board according to the present invention and the apparatus 100 for performing the same in the input unit 110, the input unit 110 for loading the backup board 10, the PCB hole processing is completed. The first transfer unit 120 for guiding the stacked backup board 10 one by one, the plurality of pressure roller 158 is provided to the second transfer unit 150 forcing the backup board 10 guided by the first transfer unit 120 Cooling to cool the heating unit 170 and the heating unit 170, which is disposed between the pressure roller 158 and heats the upper and lower surfaces of the backup board 10 guided by the second transfer unit 150. By providing the unit 190, the metal film peeled from the backup board 10 can be recycled, and the manufacturing cost of the PCB can be reduced.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims You will understand.

Claims (13)

Stacking a backup board of which hole processing of the PC is completed (S1); Guiding the stacked backup boards one by one (S2); Forcibly conveying the backup boards guided one by one in the step S2 using a plurality of pressure rollers (S3); Heating the upper and lower surfaces of the backup board, wherein the backup board is disposed between the pressure rollers and is fed; And And a step (S5) of manually peeling off the metal film of the backup board heated in the step (S4). The method of claim 1, wherein in the step (S4), the backing board to be transported is a metal film peeling method of the backup board, characterized in that the heating to a temperature of 700 ~ 1000 ℃ completely dried. The method of claim 1, wherein in the step (S4) when the moisture remaining on the backing board to be transported, the metal film peeling method of the backing board, characterized in that for heating to a temperature of 1000 ~ 1200 ℃. A loading table having a loading plate having a plurality of guide holes having a predetermined distance and extending from one side to the other side, and a loading hopper fixedly disposed on an upper portion of the loading plate to uniformly stack a backup board; A first conveyor motor mounted on one side of the loading table, a first conveyor shaft and a second conveyor shaft disposed on one side and the other side of the guide hole while being rotatably connected to the first rotary motor; A first conveying part having a conveyor belt which is wound around the first conveyor shaft and the second conveyor shaft and has a plurality of guide protrusions protruding through the guide hole to guide the backup board one by one; A peeling unit having a peeling table disposed at one side of the loading table and receiving the backup board guided by the first conveying unit; A plurality of pressure feeds connected to the second rotary motor mounted on one side of the separation table and rotatably connected to the second rotary motor while being mounted at a predetermined interval on an upper portion of the separation table, one of which is rotatably connected to the second rotation motor; A second conveying portion having a roller; A heating unit disposed to face up and down between the pressure rollers to heat upper and lower surfaces of the backup board guided by the second transfer unit; And And a cooling tank having a cooling water filled with cooling water so as to cool the burner disposed on one side of the separation table, and having a cooling water introduction pipe and a cooling water discharge pipe extending from the cooling tank and mounted to the burner. Metal film peeling apparatus of the backup board. The method of claim 4, wherein the loading hopper has a tapered shape from the upper side to the lower side, and the first guide groove and the second guide groove the same as the height and width of the backup board is formed on one side and the other side of the lower side Metal film peeling device of the backup board. According to claim 4, wherein the first rotating shaft is protruded from the first rotating shaft, the first rotating shaft is equipped with a first guide sprocket, the end of any one of the first conveyor shaft and the second conveyor shaft first And a second guide sprocket connected to the first guide sprocket by a guide chain. The apparatus of claim 4, wherein the guide protrusion is disposed at a distance greater than a length of the backup board in the conveyor belt. According to claim 4, The peeling table has an alignment table formed with an alignment groove extending radially narrowed from the upper one side to the other side for aligning the backup board conveyed from the first conveying portion on the upper side adjacent to the stacking table; And a chute plate extending on the other side of the peeling table to have a predetermined inclination toward the lower side of the peeling table radially. According to claim 4, wherein the second rotary motor has a second axis of rotation protrudes, the second rotary shaft is mounted with a first peeling sprocket, each of the feed rollers extending vertically from both sides of the upper portion of the separation table to the upper side And a first support plate to be connected to each other, and a second support plate to connect the first support plate, and a pair of first and second rollers disposed up and down between the first support plates facing each other. The extension portion of each of the second rollers extends through the first support plate to be equipped with a second peeling sprocket and a third peeling sprocket, wherein any one of the second peeling sprockets is a first peeling body. Is connected to the first peeling sprocket, each second peeling sprocket and each third sprocket being pivotable by a plurality of second peeling chains. Metal film removal device of the backup board. 10. The method of claim 9, wherein the heating portion of the third support plate extending vertically to the upper and lower portions of the separation table between the first support plate, the fourth support plate for connecting the upper and lower portions of the third support plate and the third A fifth supporting plate, and each of the fourth supporting plate and the fifth supporting plate is equipped with an adjusting screw shaft penetrating the fourth supporting plate and the fifth supporting plate, and each of the adjusting screws has the burner; Metal film peeling apparatus of the backing board, characterized in that arranged to face each other. 10. The method of claim 9, wherein the burner has a rectangular parallelepiped shape and disposed between the third support plate, the inner central portion is formed with a fuel mixture hole is closed at both ends, both sides of the burner on the radially lower side of the fuel mixture hole Cooling water injection hole penetrating the through is formed, and the first crater extending to the lower portion of the burner in the radial lower portion of the fuel mixture hole is formed from one side of the radial lower portion of the fuel mixture hole to the other side, and corresponds to the first crater Both sides of the upper surface of the burner is a metal film peeling device of the backing board, characterized in that the fuel injection and the mixture of the air is injected into the elbow-shaped injection tube communicating with the fuel mixture hole. 12. The method according to claim 11, wherein both sides of each of the first craters and each of the first craters have a diameter smaller than the diameter of the first crater and are similarly communicated with the fuel mixing holes from one radially lower side of the fuel mixing holes. Metal film peeling apparatus of the backup board, characterized in that a plurality of second crater is formed to the other side. 12. The apparatus of claim 11, wherein the coolant inlet pipe is connected to one side of the coolant inlet hole of the burner, and the coolant outlet tube is connected to the other side of the coolant inlet hole. .