KR100692487B1 - Tray feeder having dehumidification function - Google Patents

Abstract

The present invention relates to a tray feeder, the tray feeder of the present invention includes a main body having a tray supply part on one side, a magazine storage part in which a magazine on which a tray on which an electronic component is loaded is stored is stored, An elevator for transferring the magazine stored in the magazine storage to the tray supply unit, and a dehumidifying unit installed on one side of the main body to dehumidify the electronic components loaded on the tray, the tray feeder according to the present invention is a tray feeder By dehumidifying the electronic parts directly inside, it is possible to minimize the size of the dehumidifier even if there is no separate dehumidifier, or even with a dehumidifier. Use of tray feeder by batch There is an effect to further improve the efficiency and management efficiency of electronic components.

Description

Tray feeder having dehumidification function

1 is a schematic view showing a tray feeder according to the present invention.

Figure 2 is a side cross-sectional view showing the tray storage of the tray feeder according to the present invention.

3 is an enlarged cross-sectional view illustrating a dehumidifying unit provided in the tray feeder according to the present invention.

4 is a perspective view illustrating an installation state of an elevator dehumidifying unit and a magazine side dehumidifying unit provided in a tray feeder according to the present invention.

* Explanation of symbols for main parts of drawings *

100 ... body

200 ... 1 magazine storage

300 ... 2nd magazine storage

400 ... tray supply

The present invention relates to a tray feeder, and more particularly, to a tray feeder having a dehumidifying function for dehumidifying electronic components.

In general, electronic components such as semiconductor chips, diodes, capacitors, and resistors are exposed to outside air without being used for a long time, and moisture in the outside air penetrates into the inside of the electronic parts. The penetration of moisture causes problems such as micro cracks and circuit defects in electronic components. Therefore, in general, electronic components that are stored for a long time are stored separately in the dehumidifier.

On the other hand, the tray feeder is a device for supplying the electronic component to the electronic component mounter for surface mounting the electronic component on a printed circuit board (PCB). In this tray feeder, a plurality of trays in which electronic components are loaded are loaded inside, and the trays are sequentially supplied to the surface mounter according to the working conditions. However, the conventional tray feeder is configured to perform only a supply function of a tray on which electronic components are loaded, and does not have a dehumidification function for electronic components loaded therein.

Therefore, since the tray cannot be stored in the tray feeder for a long time, a dehumidifier in which a tray containing electronic components is stored is located in an adjacent place of the tray feeder, and thus, if necessary, the tray stored in the dehumidifier is transferred and loaded into the tray feeder. I'm trying to.

However, the supply of the tray using the conventional tray feeder as described above causes the tray to be fed from the dehumidifier to the tray feeder at any time, thereby bringing about the inconvenience of work and the deterioration of the work efficiency. Since the dehumidifier must always be arranged at the same time, there is a problem that the use efficiency of the work space is reduced.

The present invention is to solve the above problems, an object of the present invention is to provide a tray feeder provided with a dehumidifying unit for effective dehumidification of the electronic components stored in the tray feeder.

The tray feeder according to the present invention for achieving the above object is a magazine storage unit in which a main body having a tray supply part on one side, a magazine on which a tray on which an electronic component is loaded, is stored, and the magazine is located on one side of the tray supply part. And an elevator for transferring the magazines stored in the storage unit to the tray supply unit, and a dehumidifying unit provided in the main body to dehumidify the electronic components loaded on the tray.

Preferably, the dehumidifying unit is provided on one side of the magazine storage unit in communication with the magazine storage unit, a thermoelectric element installed to divide the inside of the case into the main body side and the outside air side, and the inside of the case is installed in the main body It includes a dehumidification side circulation fan for circulating the air to the side, and the heat radiation side circulation fan installed in the case to circulate the air to the outside air side.

Also preferably, the dehumidifying unit includes an elevator side dehumidifying unit installed at one side of the elevator.

Also preferably, the dehumidifying unit includes a magazine side dehumidifying unit installed at one side of the magazine.

Also preferably, the dehumidifying unit is provided with any one selected from the group consisting of silica gel, zeolite, phosphorus pentoxide, barium oxide, and calcium oxide.

Hereinafter, an embodiment of a tray feeder according to the present invention will be described with reference to the drawings.

Tray feeder according to an embodiment of the present invention has a main body 100 formed in a rectangular enclosure shape as shown in FIG. The tray supply part 400 is provided in the middle part of the main body 100. The feeder arm 410 is installed in the tray supply unit 400. The pallet P on which the tray T is seated is fed to the feeder arm 410.

1 and 2, the first magazine storage part 200 and the second magazine storage part 300 are formed on the upper side and the lower side of the main body 100, respectively. And the tray supply unit 400 is located between the first magazine storage unit 200 and the second magazine storage unit 300 of the middle portion of the main body 100.

Therefore, the magazines 500 and 500 'transferred from the first magazine storage unit 200 or the second magazine storage unit 300 by a clamp unit (not shown) and a feeder arm 410 separately installed in the tray supply unit 400. ), The pallet P is clamped and transferred to the feeder arm 410 side.

Each of the first magazine storage unit 200 and the second magazine storage unit 300 includes a magazine 500, 500 ′, a plurality of pallets P installed in the magazine 500, 500 ′, and the pallet ( A plurality of trays T, which are loaded on P) and in which a plurality of electronic components are stacked, are provided.

In addition, each magazine storage unit 200, 300 is provided with a first elevator 210 and the second elevator 250, the magazine 500, 500 'is loaded. The first magazine storage unit 200 inside the main body 100 is provided with a first driving unit 220 for elevating the first elevator 210 up and down, and the second magazine storage unit 300 with a second elevator. The second driving unit 260 for elevating the 250 up and down is installed.

The first driving unit 220 includes a motor 221 and a ball screw 222, and the second driving unit 260 also has a motor 261 and a ball screw like the first driving unit 220. 262). However, the installation direction and the operation direction of the first driving unit 220 and the second driving unit 260 is made in a direction opposite to each other.

The first dehumidifying unit 230 is provided on the side of the first magazine storage unit 200 in the upper side of the main body 100, and the second side of the second magazine storage unit 300 in the lower side of the main body 100 is provided in the second side. Dehumidifying unit 270 is provided. As shown in FIG. 4, separate dehumidifiers 211, 251, 510, and 510 ′ may be provided in each of the elevators 210, 250, and the magazines 500, 500 ′.

Here, the first dehumidifying unit 230, the second dehumidifying unit 270, and the dehumidifying units 211, 251, 510, 510 ′ installed in the elevators 210, 250, and magazines 500, 500 ′. ) May optionally be employed. That is, only the first dehumidifying unit 230 and the second dehumidifying unit 270 may be employed or the elevator side dehumidifying unit 211 and 251 and the magazine side dehumidifying unit 510 and 510 'may be employed, or You can employ either or all of them.

The first dehumidifying unit 230 and the second dehumidifying unit 270 adopt a forced dehumidifying method with the same structure, and the elevator side dehumidifying unit 211 and 251 and the magazine side dehumidifying unit 510 and 510 ' It is preferable to employ a dehumidification method.

Hereinafter, the first dehumidifying unit 230 will be described in detail. Since the configuration of the second dehumidifying unit 270 is the same as that of the first dehumidifying unit 230, a separate description thereof will be omitted. As shown in FIG. 3, the first dehumidifying part 230 includes a case 231 installed on the side of the main body 100.

The dehumidifying side suction port 232 and the dehumidifying side discharge port 233 communicating with the inside of the main body 100 are respectively formed on the surface of the case 231 which is in contact with the main body 100, and the outer side of the case 231 does not contact the main body 100. The heat dissipation side suction port 235 and the heat dissipation side discharge port 236 are respectively formed. The dehumidification side discharge port 233 is provided with the dehumidification side circulation fan 234, and the heat dissipation side discharge port 236 is provided with the heat dissipation side circulation fan 237.

In addition, a thermoelectric element 240 partitioning the inside of the main body 100 and exerting a thermoelectric function is installed between the respective circulation fans 234 and 237 in the main body 100, and the main body of the thermoelectric element 240 ( The dehumidification block 241 is installed at the side 100 and the heat dissipation block 242 is installed at the outside. The blocks 241 and 242 are made of a highly conductive material such as aluminum.

On the other hand, the thermoelectric element 240 is a Peltier element using the Peltier effect, a phenomenon in which heat absorption (or generation) is caused by electric current. Accordingly, dehumidification is performed by condensing moisture in the air sucked into the main body 100 on the dehumidification block 241 side, and inevitably, heat generated on the opposite side is exhausted to the outside air through the heat dissipation block 242. And the condensed water generated during condensation is not shown in the drawing to connect a separate drain pipe for the drain to the case 231 to be drained to the outside.

Meanwhile, the elevator side dehumidifying unit 211, 251 and the magazine side dehumidifying unit 510, 510 ′ may also adopt the thermoelectric element 240 like the first dehumidifying unit 230 and the second dehumidifying unit 270. Can be. However, since the magazines 500, 500 'and the elevators 210, 250 move up and down, the structure for the electrical wiring and the drainage of condensate should be implemented in a fairly complicated manner. Therefore, these dehumidifying parts 211, 251, 510, 510 'will be appropriate to allow chemical dehumidification.

Therefore, in the present embodiment, the elevator-side dehumidifier 211 and 251 and the magazine-side dehumidifier 510 and 510 'are silica-gel, zeolite, and phosphorus pentoxide (as shown in FIG. 4). Any one material selected from phosphorus pentoxide, barium oxide and calcium oxide is embodied as a dehumidification box in which air can be distributed so that elevators 210, 250 and magazines 500, 500 On the side of ') is installed to achieve natural dehumidification.

Hereinafter will be described the operation of the tray feeder according to an embodiment of the present invention.

First, the general operation of the tray feeder will be briefly described. In one of the first magazine storage unit 200 and the second magazine storage unit 300, the magazines 500 and 500 ′ may be used in the first elevator 210 or the first elevator 210. When the position moves to the tray supply unit 400 by the elevator 250, the tray supply unit 400 clamps the pallet P stored in the magazines 500 and 500 ′ and feeds the feeder arm 410.

The pallet P fed from the feeder arm 410 is fed to the mounter (not shown), and subsequently performs the same operation on the next pallet P in the magazines 500 and 500 '. And when the tray (T) feeding for any one magazine 500 is completed, the tray (T) feeding for the magazine (500 ') located in the other place is made. However, at this time, the electronic components stored in the tray T located at another place for the work of one place are in the standby state for a considerable time.

Therefore, dehumidification of the waiting electronic components is continuously needed. To this end, the dehumidifying unit 230 and 270 operate. The dehumidifier 230, 270 first sucks air in the body 100 into the case 231 through the suction port 232. The sucked air is in contact with the dehumidification block 241 of the thermoelectric element 240. At this time, moisture in the air is dehumidified by condensation in the dehumidification block 241, and the dehumidified air flows back into the main body 100 through the dehumidification-side discharge port 233. Therefore, dehumidification is performed inside the main body 100.

On the other hand, the thermoelectric element 240 generates heat on the opposite side to the cooling. Therefore, the heat must be effectively radiated to ensure high efficiency of the thermoelectric element 240. Accordingly, when the heat dissipation side circulation fan 237 operates to suck the outside air into the case 231 from the heat dissipation side inlet 235, the sucked air takes heat away through the heat dissipation block 242 to dissipate the heat dissipation side discharge port ( 236 is discharged to the heat dissipation of the thermoelectric element 240.

However, when adopting a high-efficiency heat sink fin structure in another embodiment may not use an outside heat sink.

Meanwhile, the dehumidifying parts 211, 251, 510, and 510 ′ installed in the elevators 210, 250, and the magazines 500, 500 ′ are dehumidified in the main body 100 by chemical natural dehumidification. do.

Each magazine storage unit 200, 300, and elevator 210 provided in the main body 100 by dehumidification in the dehumidifying unit 230, 270, 211, 251, 510, 510 ′ as described above. At 250 and magazines 500 and 500 ', the dehumidification state is optimally maintained at all times. Therefore, the structure of the tray feeder can be made larger, and the electronic components can be stored for a long time. That is, by additionally forming a plurality of magazine receiving portion above or below the tray feeder can maximize the use efficiency of the tray feeder, and also minimize the use of unnecessary dehumidifiers.

In addition to the above-described embodiment of the present invention, each component may be modified by some modifications. However, if the basic components of these embodiments include the essential components of the present invention all should be considered to be included in the technical scope of the present invention.

The tray feeder according to the present invention as described above allows dehumidification of electronic components directly within the tray feeder, so that a separate dehumidifier is not provided, or even if the dehumidifier is provided, the scale of the dehumidifier can be minimized. By increasing the size of the feeder so that the storage and processing of the electronic parts are collectively performed, there is an effect of further improving the use efficiency of the tray feeder and the management efficiency of the electronic parts.

Claims (5)

A main body having a tray supply on one side; A pair of magazine storage units positioned in the main body with the tray supply unit as a boundary and storing a magazine on which a tray on which electronic components are loaded is stored; Dehumidification units provided at sides of the pair of magazine storage units to forcibly dehumidify the electronic product; An elevator for transferring the magazine stored in the magazine storage part to the tray supply part; And And an elevator side dehumidifying unit provided on the main body so as to be located at one side of the elevator and chemically dehumidifying the electronic parts loaded in the magazine transported by the elevator. The method of claim 1, wherein each of the dehumidification unit is a case mounted in communication with the magazine storage portion on one side of the magazine storage portion, the thermoelectric element is installed to partition the inside of the case into the main body side and the outside air side, and the case inside A dehumidification side circulation fan installed in the case and forcibly circulating air naturally introduced into the case to the main body side, and a heat radiation side circulation fan installed in the case for forced circulation of the air naturally introduced into the case to the outside air side; Tray feeder, characterized in that. delete The tray feeder of claim 1, further comprising a magazine side dehumidifying unit configured to chemically dehumidify an electronic component loaded in the magazine. The method of claim 1 or 4, wherein the chemical dehumidification is composed of silica gel, zeolite, phosphorus pentoxide, barium oxide and calcium oxide. Tray feeder, characterized in that the dehumidification provided by any one selected from.

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