KR100639107B1 - Automatic drill-bit suppling device for mmc cutting apparatus - Google Patents

Abstract

A unit for automatically supplying drill bits of a multimedia card cutting apparatus is provided to automatically exchange the damaged or worn drill bits by automatically supplying the drill bits to a predetermined position of the cutting apparatus. A unit for automatically supplying drill bits of a multimedia card cutting apparatus includes feeding belts, feeding conveyors(121,122), middle positioning members(131,132), and a feeding unit(140). The feeding belt feeds the drill bits. The feeding conveyor includes a plurality of pulleys and a motor driving a plurality of pulleys. The middle positioning member is separated from the tip end of the feeding belt so as to position the drill bits fed by the feeding belt. The feeding unit picks the drill bits and moves the drill bits to the middle positioning member.

Description

Automatic drill-bit suppling device for MMC cutting apparatus

1 is a plan view showing a conventional multimedia card assembly.

Figure 2 is a perspective view schematically showing a multimedia card cutting device equipped with automatic drill bit feeder according to a preferred embodiment of the present invention.

3 is a perspective view schematically showing a drill bit automatic feeding device of a multimedia card cutting apparatus according to a preferred embodiment of the present invention.

Figure 4 is a plan view showing an automatic drill bit supply apparatus for cutting a multimedia card according to a preferred embodiment of the present invention.

5 is a perspective view showing some components of the automatic feed bit of the drill bit of the multimedia card cutting apparatus according to an embodiment of the present invention.

 6 and 7 are side and front views respectively showing the automatic feed bit of the drill bit of the multimedia card cutting apparatus according to a preferred embodiment of the present invention.

8A to 8C are front views illustrating the operation of the automatic feed bit of the drill bit of the multimedia card cutting device according to the preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

50 ... drill bit 100 ... bit automatic supply

110 ... Frame 121,122 ... Part 1, 2 Conveyor

123,124 ... No. 1,2 conveying belt 125 ... Pulley

126,127 ... made 1,2 guide member 128,129 ... made 1,2 combined rib

131,132 ... 1st and 2nd intermediate seating board 137,138 ...

140 ... feeding unit 141,143 ... 1,2 fingers

145 ... moving block 146 ... moving cylinder

151,153 ... 1,2 stopper 161,162 ... 1,2 feed jig

163 storage groove 164 knob

170 ... motor 171 ... drive shaft

The present invention relates to an automatic feed device for a drill bit of a multimedia card cutting device. More particularly, the drill bit may be moved to a predetermined position of the cutting device to automatically replace a broken or worn drill bit during a cutting operation on the multimedia card. The present invention relates to a drill bit automatic feeding device for a multimedia card cutting device that can be automatically supplied.

In general, a multimedia card is manufactured in the form of a plurality of connected assemblies in order to increase work efficiency and mobility. As shown in FIG. 1, the multimedia card assembly includes a plurality of multimedia cards 10 and a dummy 20 having a frame shape connecting the multimedia cards 10, and each of the multimedia cards 10 has a predetermined size groove portion ( recess 11, the leading end is chamfered.

Since the operation of separating each multimedia card 10 from the multimedia card assembly is difficult to be done manually by an operator, a dedicated cutting device for this is required.

Recently, a multimedia card cutting device has been developed that can automatically cut a multimedia card. The cutting device includes a chamfering processing unit for processing the front end of the multimedia card 10, a cutting unit for separating the multimedia card 10 from the dummy 20, and fixes the multimedia card assembly using a jig. After the drill bit rotates at high speed, the front end of the multimedia card is chamfered, and the multimedia card 10 is separated from the dummy 20.

The multimedia card cutting device automatically changes the drill bit to a new one because the drill bit may be worn or broken during the cutting operation of cutting the multimedia card 10 from the pile 20 or removing the multimedia card 10 from the dummy 20. It is supposed to be replaced. That is, if the drill bit is worn or broken, the chamfering processing unit or cutting unit separates the worn or broken drill bit and mounts a new drill bit in the replacement position.

When the drill bit placed in the replacement position is replaced, the drill bit dispensing unit movably installed on one side of the cutting device transfers the new drill bit in the standby position to the replacement position.

However, such a multimedia card cutting device requires a supply device capable of supplying the stored drill bit to the standby position while storing a plurality of drill bits, because the number of drill bits placed in the standby position is limited. For this reason, at present, various attempts have been made to develop a drill bit automatic feeding device which is more convenient for a user and can stably supply a drill bit.

It is an object of the present invention to provide a drill bit automatic supply device for a multimedia card cutting device capable of storing a plurality of drill bits and stably supplying the stored drill bits.

Drill bit automatic supply device for a multimedia card cutting device according to the present invention for achieving the above object, for supplying the drill bit to a predetermined position on the multimedia card cutting device, the conveying belt and the conveying belt for conveying the drill bit A transport conveyor having a plurality of pulleys for driving the plurality of pulleys and a motor for driving the plurality of pulleys, and an intermediate part spaced apart from an end of the transport belt so that the drill bit transferred by the transport belt can be placed. And a seating unit and a feeding unit for holding the drill bit transferred to one end of the transfer conveyor and transferring the drill bit to the intermediate seating unit.

In the present invention, the conveying belt is composed of the first and second conveying belt spaced apart to be parallel to each other, the drill bit is inserted into the interspace between a portion of which is formed between the first and second conveying belt Can be transported in an upright position.

And, one side of the first and second conveyance belt may be provided with a stopper for stopping the drill bit conveyed by the first and second conveyance belt.

In addition, the feeding unit may include a finger for holding the drill bit, a moving block to which the finger is fixed, and a moving device for pushing or pulling the moving block toward the intermediate seat.

In addition, the drill bit automatic feeding device of the multimedia card cutting apparatus according to the present invention further includes a lifting device for elevating the intermediate seat up and down, wherein the drill bit is seated in the standing state in the middle seat A coupling groove into which a part of the bit is inserted may be provided.

In addition, the automatic drill bit supply device of the multimedia card cutting apparatus according to the present invention may further include a sensor for detecting the presence of the drill bit in the intermediate seating.

In addition, the other end of the first and second conveyance belt and the storage groove is movably stored with the drill bit standing up, and the drill bit stored in the storage groove is pushed between the first and second conveyance belt. In order to move the storage groove may be provided with a feed jig including a knob provided to be movable.

In addition, first and second guide members for guiding the transport of the drill bit, which are placed to stand on the first and second conveyance belts and are conveyed on each upper portion of the first and second conveyance belts, are spaced apart from each other in parallel to each other. Can be installed.

In addition, the automatic drill bit feeder of the multimedia card cutting apparatus according to the present invention may further include a quantity detecting sensor for detecting the quantity of the drill bit to be transferred to the first and second conveyance belt.

Here, the quantity sensor may include a light emitting sensor and a light receiving sensor which are installed spaced apart from each other centered around the space between the first and second conveyance belt.

On the other hand, the drill bit automatic feeding device of the multimedia card cutting device of another embodiment of the present invention is for supplying the first and second drill bits to a predetermined position on the multimedia card cutting device, a part of the first drill bit is inserted A first transfer conveyor having a pair of transfer belts spaced apart from each other to form a space therebetween and a plurality of pulleys for supporting the respective transfer belts so as to be movable; A second conveying conveyor having a pair of conveying belts spaced apart from each other so as to form a space therebetween so as to be inserted therein, and a plurality of pulleys for driving the conveying belts; One motor for driving the first and second transfer conveyors and the first and second transfer conveyors First and second intermediate seats spaced apart from each other at the ends of each of the conveying conveyors so that the first and second drill bits can be placed, and the first and second drill bits conveyed to one end of each of the conveying conveyors. A storage unit movably stored with the first drill bit erected to supply the first drill bit between the feeding unit for picking up and moving the respective intermediate seats and the pair of conveying belts of the first conveying conveyor; A first feed jig comprising a knob movably provided in the storage groove for pushing a groove and the first drill bit between the pair of transport belts, and between the pair of transport belts of the second transport conveyor. A storage groove and the second drill bit which are movably stored with the second drill bit standing up to supply the second drill bit. To push between the conveying belt of the group one pairs and a second supply jig comprising a knob which is provided movably in the storage groove.

Here, the other end of the first transfer conveyor is provided with a first coupling rib to which the end of the first feed jig is coupled, and the other end of the second transfer conveyor is coupled to the second end of the second feed jig Coupling ribs are provided, and each end shape of the first and second supply jig is different from each other, and the shape of the first and second coupling ribs is also different from each other, the first supply jig is coupled to the other end of the first transfer conveyor only. The second supply jig may be coupled only to the other end of the second transfer conveyor.

Hereinafter, with reference to the accompanying drawings will be described with respect to the automatic feed bit of the multimedia card cutting apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view schematically showing a multimedia card cutting apparatus in which a drill bit automatic feeding device is installed according to a preferred embodiment of the present invention, and FIG. 3 is a drill bit automatic feeding device of a multimedia card cutting device according to a preferred embodiment of the present invention. 4 is a plan view schematically showing a drill bit automatic feeding device of a multimedia card cutting apparatus according to a preferred embodiment of the present invention, Figure 5 is a drill of a multimedia card cutting apparatus according to a preferred embodiment of the present invention 6 and 7 are side and front views respectively showing drill bit automatic feeding apparatus of the multimedia card cutting apparatus according to the preferred embodiment of the present invention. 8c is a multimedia card according to a preferred embodiment of the present invention A front view showing the drill bit operation of the automatic supply of the stage apparatus.

As shown in Figure 2, the multimedia card cutting device is fixed to the multimedia card assembly with a fixing jig (not shown) provided in each of the plurality of beds 200, and is installed to be movable on the top of each bed 200 The front end of the multimedia card 10 (see FIG. 1) is processed by the chamfering processing unit 300 and the cutting unit 400, and each multimedia card 10 is separated from the dummy 20 (see FIG. 1). This machining operation is controlled by a user operating a control unit (not shown), and information such as a progress state and an error about the machining operation is displayed on the control unit.

When the drill bits 51 and 53 (see FIG. 4) of the chamfering processing unit 300 or the cutting unit 400 are worn or broken, the chamfering processing unit 300 or the cutting unit 400 is worn or broken. The bits 51 and 53 are replaced with new drill bits 51 and 53 which are placed on the seats 211 and 212 provided at the rear end of the bed 200. If there is no drill bit 51, 52 on each seating plate 211, 212, the drill bit dispensing unit 500 emptyes the drill bits 51, 53 supplied by the drill bit automatic feeder 100. The seats 211 and 212 are moved.

As shown in FIG. 3, the drill bit automatic feeding device 100 includes first and second transfer conveyors 121 and 122 installed in parallel with each other on the frame 110, and respective transfer conveyors 121 and 122. The first and second intermediate seating pads 131 and 132 which are installed to be spaced apart slightly from the ends of the head), and the transfer conveyors 121 and 122 are transferred to one end of each of the transfer conveyors 121 and 122. And a feeding unit 140 for transferring the drill bits 51 and 53 to the first and second intermediate seating plates 131 and 132, respectively.

The first transfer conveyor 121 transfers the drill bit 51 for chamfering, and the second transfer conveyor 122 transfers the drill bit 53 for cutting.

The structures of these first and second transfer conveyors 121 and 122 are identical except for some components, and as shown in FIG. 4, each of the transfer conveyors 121 and 122 has a first and a second position. A plurality of pulleys 125 for supporting the transfer belts 123 and 124, the transfer belts 123 and 124 so as to run, and an upper portion of the transfer belts 123 and 124. And first and second guide members 126 and 127.

The first and second conveyance belts 123 and 124 are somewhat spaced apart to be parallel to each other. As shown in FIG. 7, the separation distance of these conveying belts 123 and 124 is greater than the diameter of the drill bits 51 and 53 and the boss portion 52 provided in the middle of each of the drill bits 51 and 53. (54) smaller than the diameter. Therefore, when the drill bits 51 and 53 enter the transfer conveyors 121 and 122, the drill bits 51 and 53 are inserted into the spaces between the lower ends of the transfer belts 123 and 124, respectively. Each boss part 52, 54 is placed on each conveying belt 123 and 124 in a state of being erected on the upper portion of each conveying belt 123 and 124.

As shown in FIGS. 6 and 7, the first and second transfer belts 123 and 124 are connected to a plurality of pulleys 125 such as a driving pulley and an idle pulley connected to the drive shaft 171 of the motor 170. It is supported to be driven by, the pulley 125 provided in each of the first and second transfer conveyor 121, 122 are driven by one motor 170.

The first and second guide members 126 and 127 are spaced apart from each other so as to be parallel to each other on the upper portions of the transfer belts 123 and 124. The first and second guide members 126 and 127 guide each drill bit 51 and 53 transferred by the first and second transfer belts 123 and 124 to be transported without falling down.

In addition, the pair of first and second coupling ribs 128 and 129 are spaced apart from each other at the other ends of the first and second transfer conveyors 121 and 122, respectively. The pair of first coupling ribs 128 of the first transfer conveyor 121 has no locking jaw, and the pair of second coupling ribs 129 of the second transfer conveyor 122 are provided with locking jaws 129a. do.

As shown in FIG. 3, at each end of the first and second transfer conveyors 121 and 122, first and second stoppers 151 and 153 advance and retreat by the stopper cylinders 152 and 154. It is possibly installed. These stoppers 151 and 153 are configured to transfer the respective drill bits 51 and 53 conveyed by the first and second conveyance belts 123 and 124 of the first and second conveyance belts 123 and 124. At one end, a specific position is positioned so as to be positioned below the first and second fingers 141 and 143 of the feeding unit 140 which will be described later.

After the fingers 141, 143 hold each drill bit 51, 53 stationary on each conveyer 121, 122, each stopper 151, 153 is a first and a second conveyer ( Retreating to the outer side of each of the first and second transfer belts 123 and 124 of 121 and 122, each drill bit 51 and 53 is each intermediate seat by the fingers 141 and 143. 131 and 132 to be conveyed.

The first and second intermediate seats 131 and 132 are installed to be somewhat spaced apart from each end of the first and second transfer conveyors 121 and 122. Each intermediate seat 131 132 is provided with coupling grooves 131a and 132a into which lower ends of the respective drill bits 51 and 53 are inserted so that the drill bits 51 and 53 can be seated in an upright position. Have Each intermediate seat 131, 132 is fixed to the support brackets 135, 136, which are lifted by the lifting cylinders 133, 134, respectively. Each of the support brackets 135 and 136 is provided with detection sensors 137 and 138, and these detection sensors 137 and 138 are drill bits 51 (for each intermediate seat 131 and 132). 53) It detects the presence or absence.

The feeding unit 140 includes first and second fingers 141 and 143 installed on the upper ends of the first and second transfer conveyors 121 and 122, and each of the fingers 141 and 143. The moving block 145 is coupled, the moving block 145 is provided with a moving cylinder 146 for pushing or pulling toward the first and second intermediate seats 131 and 132, and on both sides of the moving block 145. It comprises a support 148 for slidably supporting the guide bar 147 to be.

The first and second fingers 141, 143 are actuated by respective finger cylinders 142, 144, and the first and second stoppers 151 on the first and second transfer conveyors 121, 122. Each drill bit 51, 53 stopped by 153 is grasped. After the first and second fingers 141 and 143 hold the drill bits 51 and 53 with the first and second intermediate seats 131 and 132 lowered, the moving cylinder 146 When activated, the first and second fingers 141 and 143 move together with the moving block 145 toward the first and second intermediate seats 131 and 132 to move the drill bits 51 and 53 to their respective intermediate positions. It is positioned above the seating table (131, 132).

At each other end of the first and second transfer conveyors 121 and 122, a plurality of drill bits 51 and 53 can be easily supplied to the space between the first and second transfer belts 123 and 124. The first and second supply jig 161, 162 may be detachably coupled to each other. Each supply jig (161, 162) is a storage groove 163 which can be inserted and stored a plurality of drill bits (51, 53), and drill bits (51) (53) stored in the storage groove (163) A knob 164 movably installed in the storage groove 163 so as to be pushed into the space between the first and second transfer belts 123 and 124 at once, and each drill bit 51 and 53. The opening and closing member 165 for opening and closing each storage groove 163 to prevent the departure from the end of each storage groove 163. Each opening and closing member 165 is rotatably installed at one end of each of the supply jig 161, 162, the rotation is limited by the stopper pin 166. The height at which each drill bit 51, 53 is stored in each feed jig 161, 162 and the drill bit 51, 53 are erected and conveyed to the first and second conveyance belts 123, 124. The height is substantially the same.

In addition, as shown in FIG. 5, the shapes of the respective ends 161a and 162a of the first and second supply jigs 161 and 162 in contact with the other ends of the transfer conveyors 121 and 122 are different. . That is, the shape of the end portion 161a of the first feed jig 161 may have a quadrangular shape that may be inserted between the pair of coupling ribs 128 of the first transfer conveyor 121, and the end portion of the second feed jig 162 may be formed in a rectangular shape. 162a) is a shape having a stepped portion to be inserted between the pair of coupling ribs 129 of the second transfer conveyor 122 having the locking step 129a.

Thus, by varying the shape of each end 161a, 162a of the first and second supply jigs 161, 162, each supply for storing the chamfering drill bit 51 and the cutting drill bit 53 is stored. The jig 161 and 162 may be coupled to other transfer conveyors 121 and 122 to prevent the drill bits 51 and 53 from being misfed.

First and second water quantity sensors 181 and 182 are installed at each upper portion of the first and second transfer conveyors 121 and 122. Each of these quantity sensor 181, 182 is a drill bit (51) (53) that is transported along the transport path between the first and second guide member (126, 127) of each transport conveyor (121) 122 For detecting the quantity of the), coupled to the upper portion of the light emitting sensor 183 and the second guide member 127 obliquely coupled to the upper portion of the first guide member 126 obliquely toward the conveyance path. Consisting of a light receiving sensor 184. Each quantity sensor 181, 182 detects the quantity of the drill bit 51 (53) on a predetermined section of each transfer conveyor 121, 122 and transmits the information about it to the controller, the controller Receives this signal and generates a signal to supply the drill bits 51 and 53 when the quantity of the drill bits 51 and 53 is less than the appropriate quantity.

Hereinafter, with reference to the accompanying drawings will be described the operation of the automatic supply of the drill bit of the multimedia card cutting apparatus according to a preferred embodiment of the present invention.

As shown in FIG. 8A, the first and second transfer belts 123 and 124 travel while the drill bits 51 and 53 enter between the first and second transfer belts 123 and 124. On the other hand, the drill bits 51 and 53 are loaded on the first and second conveyance belts 123 and 124 to be fed toward the feeding unit 140, and then the stopper is disposed at a position reaching the lower portion of the fingers 141 and 143. 151, 153 is stopped.

At this time, the first or second intermediate seat (131, 132) does not have a drill bit 51 (53), so that the first or second detection sensor 137 (see FIG. 3) (138 (see FIG. 3)) If so, the first or second fingers 141, 143 corresponding to the first or second intermediate seating zones 131, 132 without the drill bits 51, 53 are provided with a stopper 151 ( Holding the drill bits 51 and 53 stopped by 153, the first and second intermediate seating posts 131 and 132 are lowered at the same time.

As shown in FIG. 8B, after the first and second intermediate seats 131 and 132 descend, the moving cylinder 146 of the feeding unit 140 advances the moving block 145. The second fingers 141 and 143 move up to the upper positions of the first and second intermediate seats 131 and 132. At this time, the drill bits 51 and 53 caught by the first or second fingers 141 and 143 are in line with the coupling grooves 131a and 132a of the first or second intermediate seating pads 131 and 132. Is put on.

Subsequently, as shown in FIG. 8C, after the drill bits 51 and 53 and the engaging grooves 131a and 132a of the first or second intermediate seating posts 131 and 132 are placed in a straight line, When the first and second intermediate seats 131 and 132 are raised, the drill bits 51 and 53 are engaged with grooves 131a of the first or second intermediate seats 131 and 132 which are empty; FIG. 7B. 132a (see Fig. 7B).

When the drill bits 51 and 53 are inserted into the engaging grooves 131a and 132a of the first or second intermediate seating pads 131 and 132, the first or second holding the drill bits 51 and 53 are provided. The second fingers 141, 143 are straightened to place the drill bits 51, 53 on the first or second intermediate seat 131, 132, and then return to their original position by the moving cylinder 146. .

If there is no appropriate number of drill bits 51 and 53 on the first or second transfer conveyors 121 and 122, the first and second quantity detecting sensors 181 and 182 detect this and signal a signal therefor. The control unit generates a signal for supplying the drill bits 51 and 53.

The user recognizes the signal generated in the control unit and the first and second feed jig 161 and 162 filled with the drill bits 51 and 53, as shown in FIG. 121 and 122 are coupled to the other end of each other, and a plurality of stored in the storage groove 163 of each supply jig 161 and 162 by pushing the knob 164 of each supply jig 161 and 162. The drill bits 51 and 52 enter between the first and second transfer belts 123 and 124 of each transfer conveyor 121 and 122.

According to the present invention described above, since the drill bit automatic feeding device for supplying the drill bit to a predetermined position on the multimedia card cutting device uses a conveying conveyor having a conveying belt, a plurality of drill bits can be stored and the stored drill The bit can be supplied stably.

In addition, according to the present invention, since a plurality of drill bits can be stored, the amount of work of the operator can be reduced.

The present invention described above is not limited to the configuration and operation as illustrated and described, but various changes and modifications are possible within the spirit and scope of the claims described.

Claims (12)

In the automatic feed of the drill bit of the multimedia card cutting device for supplying the drill bit to a predetermined position on the multimedia card cutting device, A conveying conveyor including a conveying belt for conveying the drill bit, a plurality of pulleys for supporting the conveying belt so as to run, and a motor for driving the plurality of pulleys, and the drill bit conveyed by the conveying belt. An intermediate seating table installed at an end of the conveying belt so as to be spaced apart from each other, and a feeding unit which picks up the drill bit transferred to one end of the conveying conveyor and transfers the drill bit to the intermediate seating device. Drill bit automatic feeder. The method of claim 1, The conveying belt is composed of first and second conveying belts spaced apart in parallel to each other, and the drill bit is conveyed in a standing state by inserting a portion of the drill bit into an interspace formed between the first and second conveying belts. Automatic drill bit feeder of the multimedia card cutting device, characterized in that. The method of claim 2, One side of the first and second conveyance belt is provided with a stopper for stopping the drill bit conveyed by the first and second conveyance belt is provided automatic drill bit of the multimedia card cutting device. The method of claim 2, The feeding unit includes a finger for picking up the drill bit, a moving block to which the finger is fixed, and a transfer device for pushing or pulling the moving block toward the middle seat. Feeder. The method of claim 4, wherein And an elevating device for elevating the middle seat up and down, wherein the middle seat is provided with a coupling groove into which a part of the drill bit is inserted so that the drill bit can be seated in an upright position. Automatic drill bit feeder for cutting device. The method of claim 1, Automatic drill bit feeder of the multimedia card cutting device characterized in that it further comprises a sensor for detecting the presence or absence of the drill bit in the intermediate seat. The method of claim 2, On the other end of the first and second conveyance belt to the storage groove which is movably stored with the drill bit standing up, and to push the drill bit stored in the storage groove between the first and second conveyance belt Drill bit automatic feeder of the multimedia card cutting device, characterized in that the supply jig is installed that includes a knob provided to be movable in the storage groove. The method of claim 2, The upper portions of the first and second conveyance belts are spaced apart from each other so that the first and second guide members for guiding the conveyance of the drill bit are placed to stand on the first and second conveyance belts to be parallel to each other. Automatic drill bit feeder of the multimedia card cutting device, characterized in that. The method of claim 2, Automatically supplying a drill bit of a multimedia card cutting device, characterized in that it further comprises a quantity sensor for detecting the quantity of the drill bit is loaded and transported on the first and second conveyance belt. The method of claim 9, The quantity detecting sensor is a drill bit automatic supply device for a multimedia card cutting device, characterized in that comprises a light emitting sensor and a light receiving sensor which are installed spaced apart from each other centered around the space between the first and second conveyance belt. In the drill bit automatic feeding device of the multimedia card cutting device for supplying the first and second drill bits to a predetermined position on the multimedia card cutting device, A first having a pair of transfer belts spaced apart from each other to form a space therebetween so that a portion of the first drill bit is inserted, and a plurality of pulleys to support each of the transfer belts in a movable manner; A pair of transfer belts spaced apart from each other so as to form a space between the transfer conveyor and a portion of the second drill bit inserted therein, and a plurality of pulleys to support the transfer belts in a movable manner; And a second conveying conveyor, a motor for driving the first and second conveying conveyors, and the first and second drill bits conveyed by the first and second conveying conveyors. First and second intermediate seating units spaced apart from each other at the ends of the conveying conveyors, and the first and second conveying ends of the conveying conveyors. The first drill bit is movable upright to feed the first drill bit between the feeding unit for picking up a second drill bit and transferring it to the respective intermediate seats and the pair of conveying belts of the first conveying conveyor; A first supply jig including a storage groove and a knob provided to be movable in the storage groove to push the first drill bit between the pair of transport belts; and the pair of the second transport conveyors. A storage groove movably stored with the second drill bit standing up to supply the second drill bit between the conveying belts of the moving belt and the storage groove for pushing the second drill bit between the pair of conveying belts. And a second supply jig including a knob provided to be capable of being provided. Reel-bit automatic supply. The method of claim 11, The other end of the first transfer conveyor is provided with a first coupling rib to which the end of the first supply jig is coupled, and the other end of the second transport conveyor is provided with a second coupling rib to which the end of the second supply jig is coupled. Each end shape of the first and second supply jig is different from each other, and the shape of the first and second coupling ribs is also different from each other, and the first supply jig may be coupled to only the other end of the first transfer conveyor. And the second feed jig can be coupled only to the other end of the second conveying conveyor.

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