KR100642811B1 - Tray feeder - Google Patents

Abstract

The present invention relates to a tray feeder, and more particularly, a pallet is selectively removed in a horizontal direction in a magazine in which a plurality of pallets on which a tray is mounted is loaded by using a transfer means lifted by a lift means. The component tray supply apparatus which supplies a component to a component mounting apparatus by this is provided.

The tray feeder of the present invention is fixed without raising the magazine, the conveying means is a base frame that the pallet is pulled out from the magazine mounted; A pair of rotating plates formed on an upper portion of the base frame to selectively draw out the pallet from the magazine; A hook protruding from one end of the rotating plate; A pair of rotary plate accommodation grooves formed on the base frame to accommodate the rotary plate to secure a rotation path of the rotary plate; A rotating plate motor for rotating the rotating plate; And a tray feeder configured to directly lift and lower the pallet-mounted base frame to a surface mounter.

Tray, Pallet, Carousel

Description

Tray Feeder {Tray Feeder}

1 is a plan view of a conventional tray feeder.

2 is a perspective view of a tray feeder according to the present invention.

3 is a plan view of a tray feeder according to the present invention.

Figure 4 is a side cross-sectional view of the tray feeder according to the present invention.

5 is a perspective view of a pallet provided in the tray feeder according to the present invention.

Figure 6 is a perspective view of the transport means provided in the tray feeder according to the present invention.

Figure 7 is a side view of the transport means provided in the tray feeder according to the present invention.

8 is an explanatory view showing a state in which the pallet is drawn out by the transport means according to the present invention.

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

110: tray 120: pallet

121: hook guide groove 122: stopper

123: slot 124: protrusion

125: moving part 126: spring

130: magazine 131: slide layer

132 door 140 transfer means

141: base frame 142: rotating plate

143: hook 144: rotating plate receiving groove

145: rotating plate motor 146: lifting means

147: detection sensor 148: guide support

149: LM guide 150: lifting motor

151 wire 152 support

153: feed pulley 160: control unit

170: fixing means 171: fixing connector

172: fixing groove

The present invention relates to a tray feeder, and more particularly, a pallet is selectively removed in a horizontal direction in a magazine in which a plurality of pallets on which a tray is mounted is loaded by using a transfer means lifted by a lift means. The component tray supply apparatus which supplies a component to a component mounting apparatus by this is provided.

In general, in a component mounting apparatus (chip mounter), a plurality of components aligned on a tray are absorbed by an adsorption nozzle and mounted on a substrate. The trays in which the parts are mounted in an aligned state are provided on a pallet, which requires a tray feeder to automatically perform the feeding operation of such trays.

In such a tray feeder, it is important to transfer the tray to the correct position without vibration. When the tray vibrates, the parts mounted in the aligned state are scattered, and thus the operation cannot be performed normally. In addition, even if the tray is withdrawn from the magazine (Magazine) and not accurately transported to the working position of the adsorption nozzle, the normal operation may not proceed, and may also cause damage to the apparatus.

Many such tray feeders are known in the art, and such tray feeders are known in a non-stop (NON-STOP) manner and in a single manner that do not depend on replenishment or replacement of parts.

In the single system, a magazine containing a stack of pallets on which a part is stored is stored in an elevator moving up and down in accordance with a ball screw driven by a motor to move to a predetermined position, and the pallet stored in the magazine is moved. Clamping is continuously supplied to the chip mounter through the feeder arm. When all the parts contained in the magazine are used, the entire surface mounting technology (SMT) production line is stopped because the device is stopped for the replacement of other parts. Has to be stopped and the resulting time loss has a lot of inconvenience and inefficiency.

On the contrary, the non-stop system disposes the first and second elevators, each of which has several pallets mounted on the tray, in different positions up and down so that the elevators arranged on the upper and lower stages can be independently moved. Means for elevating the first elevator up and down and moving the component adsorption position and the part replenishment or exchange position, and elevating the second elevator up and down and moving the component adsorption position and the part replenishment or exchange position. Means are installed at the lower ends of the first and second elevators, respectively, so that either one of the selected first and second elevators can be replenished or moved to the replenishment and exchange position of the parts for replacement. Supplies the components to the surface mounter.

This non-stop method can provide a continuous supply of parts without stopping the operation of the tray feeder when replenishing or replacing parts.

However, this tray feeder is frequently ineligible due to problems with the pallet drawing and conveying methods of the pallet, which is positioned at the withdrawal position, and frequently causes malfunctions. There was a downside.

In particular, the conventional pallet transfer method is an example of a method of supplying the tray 10 to the feeder arm 30 by taking out the pallet 20 on which the tray 10 is mounted, as shown in FIG. HOOK) method is known.

The hook method is a hook 40 capable of dragging or pushing the pallet 20 housed in the magazine, which is driven by the timing belt to transfer the desired pallet 20 toward the chip mounter. The hook 20 is hooked to the pallet 20. The drawing groove 21 of the shape is formed, and when the hook 40 passes between the drawing grooves 21 at the time of elevating, when the desired pallet 20 comes to the feeding position, feeding is performed to the feeder arm 30. It is supposed to be.

Therefore, when the alignment between the pallets 20 is misaligned, a plurality of parts accommodated in the tray 10 by the hook 40 striking the pallets 20 are lifted out of the tray 10 at the time of elevating, thereby causing misoperation in the feeding process. This occurred.

In addition, when conveying a heavy component during feeding, the hook 40 is distorted due to the moment of inertia caused by the pallet 20 and the weight of the component, and the twist of the hook 40 is as described above. The hook 40 hits the pallet 20 at the time of putting, so that a wrong operation is frequently generated, which has a disadvantage in that the continuity of the work falls.

In addition, the hook method is a method of attracting and pushing the pallet 20, and has a guide rail for supporting the pallet 20 at the time of feeding. In this case, the noise is due to friction with the guide rail in the conveying process of the pallet 20. There are many disadvantages, and the guide rail is worn by the pallet 20 little by little, the periodic maintenance work is also required.

Such a conventional tray feeder is lifted up and down the entire magazine containing the pallet, the pallet is taken out and transported to the working position is long, so the entire volume of the component tray feeder is manufactured and installed as a stand-alone, surface mounter and Since there is no fastening mechanism, the position is easily shifted due to vibration and shock during operation, and it takes a lot of time to set the position for restoring it back to its original position after separating it from the surface mounter when changing, maintaining, or repairing work. There is a problem in that the productivity of the surface mounter is lowered as the tray replacement time becomes longer as the overall size of the apparatus increases.

The present invention has been made to solve the above-described problems, the object of the present invention is to be miniaturized by the one-touch method on the surface mount machine, easy to attach and detach, no need for baseline alignment, production preparation time is reduced, An object of the present invention is to provide a tray feeder capable of withdrawing a pallet without impact due to the acceleration and deceleration of an ideal sinusoidal waveform by constant speed rotation of a rotating plate formed on the conveying means.

Another object of the present invention is to provide a tray feeder that can increase the productivity of the surface mounter by reducing the mounting time due to the tray replacement as the pallet can be quickly withdrawn.

Tray feeder of the present invention for realizing the above object is a pallet mounted tray; A magazine capable of loading a plurality of pallets; A conveying means for sorting the pallets loaded in the magazine and transporting them to a working position; A control unit controlling an operation of the transfer means; And a fixing means for fixing the surface mounter.

The magazine is fixed to the main body of the tray feeder, unlike the magazine lifted by the conventional tray feeder, so that the space for lifting in the conventional device is not required, so that the size of the entire apparatus can be reduced.

According to another feature of the invention, the pallet has a hook guide groove of the lower open type in order to secure the movement path of the hook for withdrawal on one side, the transfer means has a rotating plate attached to the hook for withdrawing the pallet And a hook is inserted into a hook guide groove formed in the pallet by a constant speed rotation of the rotating plate, thereby providing a tray feeder from which the pallet is withdrawn from the magazine.

The pallet drawn by the rotation of the rotating plate is transferred to the pick-up position by the lifting movement of the conveying means to supply the parts to the surface mounter, and the exhausted pallet lowers the conveying means and then reversely rotates the rotating plate. Return to the magazine.

According to another feature of the present invention, by reducing the size of the entire tray feeder of the present invention, it is easy to attach and detach when the surface mounter breaks down or moves the position, and the operator easily mounts the part tray through a door formed at the rear of the magazine. And it is characterized in that the magazine is configured to replace or replenish during operation.

Hereinafter, the present invention will be described in more detail with reference to an embodiment shown in the accompanying drawings.

2 is a perspective view of a tray feeder according to the present invention, FIG. 3 is a plan view of the tray feeder according to the present invention, FIG. 4 is a side end shaving of the tray feeder according to the present invention, and FIG. 6 is a perspective view of a pallet provided in the tray feeder, and FIG. 6 is a perspective view of a feeder provided in the tray feeder according to the present invention, and FIG. 7 is a side view of the feeder provided in the tray feeder according to the present invention. do.

The tray feeder according to the present invention includes a pallet 120 on which a tray 110 on which parts are mounted in an aligned state is mounted; A magazine 130 capable of loading a plurality of pallets 120; A conveying means (140) for picking out the pallet (120) loaded in the magazine (130) and transferring it to a working position; A controller 160 for controlling the operation of the transfer means 140; And fixing means 170 for fixing to the surface mounter.

The pallet 120 allows the tray 110 to be mounted by cutting and bending the plate-shaped material (aluminum) for the purpose of lightening and simplifying the construction, and one side thereof will be described below for withdrawal. Lower opening hook guide groove 121 for securing a movement path of the hook 143 formed on the rotating plate 142 of the transfer means 140 is formed by a predetermined length.

The pallet 120 has a plurality of stoppers 122 formed at right angles on the upper side as shown in FIG. 3, and a pair of moving parts 125 having protrusions 124 on the upper surface thereof can move. A slot 123 is formed and a spring 126 is formed on the front surface of the moving part 125. The tray 110 is sandwiched between the stoppers 122 and the movement is performed along the slot 123. The part 125 is moved to press the tray 110 with the spring 126 to fix the tray 110 on the pallet 120.

Although one or two trays 110 may be mounted on the pallet 120 in the horizontal and vertical directions with respect to the longitudinal direction, preferably, the tray 110 may be mounted in the horizontal direction, so that the pick-up operation of the surface mounter may be performed more efficiently. have.

The magazine 130 forms the side frame as a slide layer 131 partitioned into a plurality of stages at a predetermined interval, and constitutes a blowout hole in which the side is opened from the front to the rear, so that the worker can move the pallet 120 at the rear. The door 132 is formed to be replaced or replenished in operation.

The magazine 130 is fixedly installed on the upper end of the control unit of the tray feeder, unlike the magazine 130 that is elevated in the conventional tray feeder.

The conveying means 140 may include a base frame 141 in which the pallet 120 is selectively drawn out from the magazine 130 and mounted as shown in FIGS. 6 and 7; A pair of rotating plates 142 formed on the base frame 141 to selectively draw out the pallet 120 from the magazine 130; A hook 143 protruding from one end of the rotating plate 142; A pair of rotating plate receiving grooves 144 formed on the base frame 141 to accommodate the rotating plate 142 to secure a rotation path of the rotating plate 142; A rotating plate motor 145 for rotating the rotating plate 142; And lifting means 146 for lifting the base frame 141 on which the pallet 120 is mounted.

In addition, the transfer means 140 includes a sensor 147 (147-1) for detecting the position of the hook 143 and the mounting position of the pallet 120; And guide guides 148, 148-1, and 148-2 for adjusting the movement path and the mounting position of the pallet 120.

As illustrated in FIG. 3, the detection sensor 147 is installed on the wall surface of the rotating plate accommodating groove 144, and is sufficiently withdrawn so that the pallet 120 can be elevated by the rotation of the rotating plate 142. It detects whether or not to control the rotation of the rotating plate 142.

In addition, as shown in FIG. 4, the detection sensor 147-1 is installed on one wall surface of the space formed so that the transfer means 140 can move up and down, and detects a lift position of the transfer means 140. By controlling the operation of the lifting means (146).

As shown in FIG. 3, the guide supports 148, 148-1, and 148-2 are formed on edges of the base frame 141 except for the pallet 120.

The pair of rotating plates 142 are coupled to the rotating plate motor 145 to rotate symmetrically with each other. That is, when one of the rotating plate 142 is in the forward rotation, the other is in the reverse rotation to withdraw or return the pallet (120).

The rotating plate 142 is formed in a fan shape as shown in FIG. 6 so that the constant speed rotation of the rotating plate 142 is an ideal acceleration / deceleration of the sinusoidal wave, and the circular motion of the rotating plate 142 without the acceleration / deceleration of the rotational speed is a straight line. It can be converted to exercise.

The hook 143 is formed to protrude on the fan-shaped vertex portion of the rotating plate 142, and is formed to a size that can be sufficiently inserted into the hook guide groove 121.

The method of extracting the pallet 120 from the magazine 130 using the rotating plate 142 configured as described above includes a hook protruding from the end of the rotating plate 142 when the pair of rotating plates 142 are symmetrically rotated to each other. 143 is inserted into the hook guide groove 121 of the lower open type formed on one side of the pallet 120 so that the circular motion of the rotating plate 142 is converted into a linear motion of the S-curve form the pallet 120 Is withdrawn from the magazine 130.

In addition, when the rotating plate motor 145 is rotated in reverse, the pallet 120 is returned through the same path and returns to its original position.

The rotary plate accommodating groove 144 forms grooves with the thickness of the rotary plate 142 at sufficient intervals so as to rotate without collision when the rotary plate 142 rotates.

The elevating means 146 is formed at the lower end of the base frame 141, the linear motion (LM) guide (149) installed on both sides of the base frame (141) in the longitudinal direction; An elevating motor 150 for elevating the base frame 141 to a work position along the LM guide 149; A pair of supports 152 supporting both ends of the base frame 141; A wire 151 for elevating the base frame 141 by connecting the elevating motor 150 with the base frame 141; And the wire 151 is composed of a plurality of transfer pulley 153 is wound around by the same principle as the operation principle of the elevator is commonly used to lift the transport means 140 to the working position.

The controller 160 is positioned below the magazine 130 to control the rotation of the rotating plate 142 and the lifting of the transfer means 140.

The fixing means 170 is formed on the lower end of the conveying means 140, the fixing connector 171 is formed in the front portion in the configuration and detachable in the insertion groove (not shown) for the tape feeder formed in the surface mounter; And a fixing groove 172 formed at a lower end and configured to be fitted to a fixing protrusion (not shown) for a tape peter formed on a surface mounter, and any fixing means may be used as long as it is known in the art. Do.

Referring to the operation principle of the tray feeder according to an embodiment of the present invention configured as described above are as follows.

8 is an explanatory diagram for explaining a method for transporting a pallet provided in the tray feeder according to the present invention.

After moving the conveying means 140 of the tray feeder according to the present invention to the elevating means 146, the rotary plate motor 145 is positioned at the height of the pallet 120 to be withdrawn by the sensor 147-1. When it is rotated forward, the hook 143 formed on the rotating plate 142 on the transfer means 140 is inserted into the hook guide groove 121 formed on one side of the pallet 120, the rotation path of the hook 143 In accordance with the pallet 120 is a linear movement is drawn out from the magazine 130, when the pallet 120 is detected by the sensor 147 to stop the rotation of the rotating plate 142 is pulled out of the pallet 120 Will stop. Lifting the pallet 120 to the work position by the elevating means 146 of the transport means 140 is located in the work position of the surface mounter without any other transport means to be able to work parts mounting do.

When the components on the pallet 120 are exhausted by the component mounting operation of the surface mounter, the pallet 120 is lowered to the initial position by using the elevating means 146 for replacement with another pallet 120. The rotating plate motor 145 is rotated in reverse to return the pallet 120 to its original position.

Parts mounting work by repeatedly performing the above method, the pallet 120 exhausted parts can be replaced with a new pallet 120 by opening the door 132 formed at the rear of the magazine 130 during the operation. By doing so, the pallet 120 can be replaced or refilled without stopping the entire apparatus, thereby increasing productivity.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, in the tray feeder of the present invention, the magazine is fixed differently from the magazine lifting in the conventional apparatus, so that the space for lifting in the conventional apparatus is not required, thereby miniaturizing the overall size of the apparatus. Due to the miniaturization, the surface mounter can be easily attached or detached.

In addition, the sinusoidal rotation of the swivel plate enables ideal high-speed withdrawal with ideal acceleration and deceleration, the conveyance of pallets loaded with trays is clear, and the trays can be replaced and refilled during parts mounting work. Reduced time has the effect of maximizing the productivity of the surface mounter.

Claims (7)

A pallet on which a tray on which components are mounted in an aligned state is mounted; A magazine capable of loading a plurality of pallets; A conveying means for sorting the pallets loaded in the magazine and transporting them to a working position; In the tray feeder comprising a control unit for controlling the operation of the transfer means, The magazine is fixed to the upper end of the control unit of the tray feeder, the conveying means is a base frame that the pallet is selectively pulled out from the magazine mounted; A pair of rotating plates formed on an upper portion of the base frame to selectively draw out the pallet from the magazine; A hook protruding from one end of the rotating plate; A pair of rotary plate accommodation grooves formed on the base frame to accommodate the rotary plate to secure a rotation path of the rotary plate; A rotating plate motor for rotating the rotating plate; And elevating means formed on the lower end of the base frame to elevate the base frame on which the pallet is mounted. The method of claim 1, A fixed connector formed at a front portion of the apparatus main body to be detachable from the surface mounter and detachable from the insertion groove for the tape feeder formed in the surface mounter; And a fixing means formed at a lower end of the main body of the apparatus and including a fixing groove formed to be fitted to a fixing protrusion for tape peter formed on the surface mounter. The method of claim 1, The pallet is a tray supply apparatus, characterized in that the hook guide groove of the lower open type for securing the movement path of the hook on one side formed by a predetermined length. The method of claim 1, The transfer means may include a sensing sensor formed on a wall surface of the rotating plate accommodating groove and a wall surface of the space formed so that the transfer means can move up and down to sense a position of the hook and a mounting position of the pallet; And guide guides respectively formed on edges of the base frame other than the pallet side to adjust the movement path and the mounting position of the pallet. The method of claim 1, The rotating plate is formed in a fan shape, the hook is a tray supply apparatus, characterized in that formed on the vertex portion of the rotating plate. The method of claim 1, The forward rotation of the rotary plate motor is one of a pair of rotating plate is rotated forward and the other is rotated reversely, the pallet feeder, characterized in that the pallet is withdrawn from the magazine. The method of claim 6, When the rotating plate motor is rotated in reverse, the pallet is returned through the same path as the draw path to return to the original position tray supply apparatus.

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