KR100799211B1 - Part Tray Feeder - Google Patents

Abstract

According to the present invention, there is provided a magazine that can accommodate two pallets each having a hook groove formed at different heights; An upper cylinder installed below the mega to raise and lower the mega; A lower cylinder installed below the upper cylinder to raise and lower the upper cylinder; A rodless cylinder installed to withdraw the pallet housed in the magazine; A base bracket reciprocating by the rodless cylinder; A bracket installed to allow relative movement along a guide with respect to the base bracket; And a hook extending from the bracket and inserted into the hook groove of the pallet.

Description

Part Tray Feeder {Part Tray Feeder}

1 is a plan view of a component supply apparatus according to the present invention.

2 is a front view of FIG. 1;

3 is a plan view of a pallet provided in the present invention.

4 is a partial enlarged view of a portion of FIG. 1.

5 is a schematic cross-sectional view of FIG. 4.

<Brief Description of Major Codes in Drawings>

11.Magazine 12.Roadless Cylinder

13. Rail 14. Hook-out device

15. Pallet 16. Stopper

17.Slot 33.34. cylinder

The present invention relates to a supply apparatus for a component tray, and more particularly, a pallet is defined in a component tray supply apparatus capable of supplying in a horizontal direction while elevating a mega magazine containing the component tray pallet using a lifting cylinder installed in two layers. It relates to a feeding device for a rowable component tray.

Usually, in the component mounting apparatus, the action of adsorbing a plurality of components arranged on a tray by adsorption nozzles and mounting them on a substrate is repeatedly performed. The tray on which the parts are mounted in an aligned state is provided on a pallet, which requires a feeding device of the component tray to automatically perform the feeding action of the component tray.

It is important for the supply device of the component tray to transfer the component tray to the correct position without vibration. When the component tray vibrates, the components mounted in the aligned state pop up, and thus the operation cannot proceed normally. In addition, even when the tray is withdrawn from the magazine and cannot be accurately transferred to the working position of the adsorption nozzle, the normal operation may not proceed, and the device may be damaged.

In Japanese Patent Laid-Open No. Hei 11-68348 according to the prior art, a method of aligning a magazine is included by enclosing a cover of a rear side of a magazine on which pallets are stacked in order to align the pallet on which the tray is arranged. However, in such a method, a draw error tends to occur with respect to the pallet which protrudes slightly to the front, and thus there is a problem that springing, wear, noise, etc. of the mounted parts occur.

The present invention has been made to solve the above problems, an object of the present invention is to provide an improved supply device tray.

The present invention provides a supply device for a component tray in which the alignment of the pallets on which the tray is placed can be made precisely.

In order to achieve the above object, according to the present invention, a magazine that can accommodate two pallets having a hook groove formed at a different height; An upper cylinder installed below the mega to raise and lower the mega; A lower cylinder installed below the upper cylinder to raise and lower the upper cylinder; A rodless cylinder installed to withdraw the pallet housed in the magazine; A base bracket reciprocating by the rodless cylinder; A bracket installed to allow relative movement along a guide with respect to the base bracket; And a hook extending from the bracket and inserted into the hook groove of the pallet.

According to one feature of the invention, the relative movement of the bracket with respect to the base bracket within a certain range and at the same time to be buffered, fixed to the base bracket and inserted into the hole formed in the bracket pin; And a spring having both ends connected to one side of the pin and the bracket, respectively.

According to another feature of the invention, it further comprises a pusher extending from the bracket to contact the sides of the pallets to align the pallets.

According to another feature of the present invention, the hook may be horizontally moved without interfering with the pallets or inserted into the hook groove, depending on the lift position of the upper cylinder and the lower cylinder.

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

1 shows a schematic plan view of a tray feeder according to the invention, and FIG. 2 shows a front view.

First, referring to FIG. 2, the magazine 11 is installed such that two pallets 15 and 37 are accommodated therein. In the state shown in FIG. 2, one pallet 15 is withdrawn from the magazine 11, and the other pallet 37 is accommodated in the magazine 11. In the state accommodated in the magazine 11, the front side of the pallet 37 is arrange | positioned in the state which protruded from the magazine 11. As shown in FIG. This is so that the hook of the take-out hook device 14 which will be described later can be inserted into the hook groove formed in each pallet.

The magazine 11 may be lifted and lowered by the lower cylinder 33 and the upper cylinder 34 installed in two layers. The lower cylinder 33 is provided on the bottom frame 31 and provides a driving force for elevating the elevating plate 32. The elevating plate 32 may be elevated according to the guide action of the ball bush 35 installed at four corners. The upper cylinder 34 is installed on the upper surface of the elevating plate 32, and provides a driving force for elevating the mega 11. Ball bushes 36 are provided at four corners of the upper surface of the elevating plate 32, and the mega 11 may be elevated according to the guide action of the ball bushes 36.

Denoted by reference numeral 38 is the lower plate of the magazine 11. That is, the lower plate 38 constitutes the bottom surface of the mega 11.

Referring to FIG. 1, it can be seen that the first tray 21 and the second tray 22 are disposed on the first pallet 15. The top surface of the first pallet 15 is shown with stoppers 16 formed on side surfaces at right angles. The stoppers 16 formed on each pallet 15, 37 contact the side of the first tray 21 so that the two trays can be aligned together. On the other hand, a slot 17 is formed on the upper surface of each pallet 15, 37, and a moving part 19 having a protrusion 18 that can be inserted into the slot 17 is provided on each pallet. . The protruding portion 18 protrudes from the bottom of the moving portion 19 and is inserted into the slot 17, and serves to guide the moving portion 19 as it moves on each pallet. The front surface of the moving part 19 is provided with a spring 23, the spring 23 is pressed to the side of the second tray (22). If there is only one tray, the moving part 19 will be further advanced and pressed to the side of the first tray 21.

In order to guide the pallets when the pallets 15 and 37 are withdrawn, a pair of rails 13 are mounted in parallel to which the pallets 15 and 37 are mounted and glide on them. In addition, a pair of rodless cylinders 12 are also provided in parallel in order to provide a driving force at drawing out. The pallets 15 and 37 are withdrawn by the hook device 14 which is reciprocated by the rodless cylinder 12. The hook device 14 is provided with hooks (Figs. 4, 51) which will be described in more detail later, and the hook 51 is provided with hook grooves (Figs. 3, 49) formed on the sides of the pallets 15, 37. Is inserted. The hook device 14 is reciprocated by the driving force provided from the rodless cylinder 12 such that each pallet 15, 37 is withdrawn from the magazine 11 along the rail 13 or again of the magazine 11. It can be inserted inward. The shock absorbing spring 19 is fixed to the main frame (not shown) and serves as a shock absorber when the forward limit of the pallets 15 and 37 advanced along the rail 13 is reached.

Referring to FIG. 2, a clamp cylinder 41 and a clamp 42 rotatably connected to a rod end of the clamp cylinder 41 are provided at a lower part of the first pallet 15 withdrawn, and the clamp ( Clamp brackets 43 are provided to hold the clamps 42 rotatably by engaging at the ends of 42. The clamp 42 allows the tray feeder to be stably fixed when the tray feeder is connected to another device (for example, a component mounting device). That is, in the contracted state as the clamp cylinder 41 is shown in the figure, the clamp 42 is not caught by the clamp bracket 43, and thus does not provide a stable fixing function of the tray feeder to another device. On the contrary, when the clamp cylinder 41 is extended, the clamp 42 and the clamp bracket 43 installed in the other device are caught with each other, thereby achieving a stable fixed state.

3 is a plan view of the pallet shown in FIGS. 1 and 2. In the figure, it is understood that hook grooves 49 are formed on the side surfaces of the pallets 15 and 37, respectively. In addition, the slot 17 described above is formed on the upper surface, it can be seen that the moving unit 19 is installed to move along the slot 17.

4 is a plan view showing the hook device 14 shown in FIG. 1 in an enlarged state. In FIG. 1, the hook device 14 is shown in a state in which the pallet is pulled out completely by moving to the right side, but in FIG.

Referring to the drawings, the hooks 51 are engaged with respect to the hook grooves 49 formed on the sides of the pallets 15 and 37. As will be described in more detail later, the action that the hook 51 is engaged with the hook groove 49 is made by the lifting action of the pallets 15 and 37. That is, the height of the hook 51 provided in the withdrawal hook device 14 which is only horizontally moved is always kept constant, while the magazine (15,37) for accommodating the pallets 15 and 37 as described with reference to FIG. 11) by being lifted by the cylinders 33 and 34, the height of each pallet 15 and 37 can be adjusted to be adjustable. Thus, each pallet 15, 37 has its height changed so as not to interfere with the horizontal movement of the hook 51, or that the hook 51 is inserted relative to the hook groove 49. The height can be changed.

Meanwhile, a pusher 52 is provided, and the pusher 52 serves to align the pallets 15 and 37 by contacting the left ends of the pallets 15 and 37. The pusher 52 and the hook 51 are connected to the bracket 54 through the connector 53. A long hole 56 is formed in the bracket 54, and the pin 55 is inserted through the long hole 56. The bracket 54 is moved by the rodless cylinder 12 and can be stopped by contacting the stopper 71. The bracket 54 reciprocates together with the movable portion of the rodless cylinder 12 as a whole, but can move within a small range instead of being fixed in the movable portion of the rodless cylinder 12. This will be explained in more detail later, and such a small range is limited to the range of lengths of the long holes 56 defined by the pins 55.

5 is a schematic cross-sectional view of FIG. 4.

Referring to the drawings, the rodless cylinder 12 is installed on the side of the main support 67. The base bracket 73 is provided as a movable part which reciprocates by its driving force along the longitudinal direction of the rodless cylinder 12. A guide 72 is installed at one side of the base bracket 73, and a bracket 54 is installed to move in a minute range along the guide 72. That is, the base bracket 73 and the bracket 54 which are movable parts of the rodless cylinder 12 can perform relative movement in a small range along the guide 72. That is, it can be seen that the bracket 54 described with reference to FIG. 4 can move in a small range along the guide 72 with respect to the base bracket 73. On the other hand, the pin 55 fixed to the base bracket 73 is inserted into the long hole 56 formed in the bracket 54, thereby limiting the movement of the bracket 54. In addition, the spring 61 is connected between the lower end of the pin 55 and the spring hook 62 formed at the lower end of the bracket 54 to deflect the bracket 54 in one direction.

The structure that allows relative movement of the bracket 54 and the base bracket 73 described above serves as a buffer when the pallets 15 and 37 are aligned. That is, an impact may occur when the pusher 52 contacts the side surfaces of each pallet 15 and 37, which may disperse the alignment of components mounted on each tray on the pallet. The impact generated between the bracket 54 and the base bracket 73 can be buffered by the elasticity of the spring 61, so that the alignment of the parts can be maintained.

As can be seen from FIG. 5, when the hook 51 is placed between the two pallets 15 and 37 so as not to interfere with any of the pallets, the pusher 52 is connected to the two pallets 15 and 37. The pallets can be aligned by touching both sides. That is, it means that alignment can be made by bringing the pusher 52 into contact with the pallets, with the lifting positions of the pallets 15 and 37 determined so that the hook 51 is in a neutral position that does not interfere with the pallets. Next, regardless of the lifting position of the pusher 52, the hook 51 is hook hook of any one pallet only by adjusting the lifting position of the pallets 15 and 37 so that the hook 51 is inserted into the hook groove 49. And can be inserted into 49.

6a to 6c are schematic explanatory views of the relative positions of the hook and the pallet.

Referring to FIG. 6A, the hook 51 is in a neutral position that does not interfere with the pallets 15, 37. In this position, the horizontal reciprocating motion of the hook 51 is free. In addition, the alignment action by the pusher 52 can also be made.

Referring to FIG. 6B, the hook 51 is inserted into the hook groove 49 of the pallet 15 located above. 6C, the hook 51 is inserted into the hook groove 49 of the pallet 37 located below.

In order for the hook 51 to be inserted into the upper or lower pallets 15 and 37, once in the neutral state shown in FIG. 6A, that is, the height of the hook 51 and the height of the pallets 15 and 37 are different from each other. In the hook 51 is moved, the hook 51 reaches the position corresponding to the lower position of the hook groove (49). The pusher 52 will then contact the sides of any pallet housed in the mega 11 to perform the desired alignment action. Then, the magazine 11 which accommodates the pallets 15 and 37 is positioned so that the hook grooves 49 formed in the pallets 15 and 37 coincide with the hooks 51 through the lifting and lowering action. Through this action, the hook 51 may be inserted into the hook groove 49, and then, by the reciprocating motion of the rodless cylinder 12, each pallet is drawn out from the magazine 11 along the rail 13. The action of entering or returning to the mega 11 may occur repeatedly.

Hereinafter, the operation of the apparatus according to the present invention will be described schematically.

The pallets 15 and 37 are provided to be housed in the magazine 11. To withdraw the first pallet 15 housed above the mega 11, the upper cylinder 34 is raised. The raised state of the upper cylinder 34 corresponds to FIG. 6A, so that the hook 51 can move past it without interfering with the pallets 15 and 37.

The hook 51 then moves to the position corresponding to the hook groove 49. At this time, the pusher 52 aligns the pallets 15 and 37 by contacting the sides of the pallets 15 and 37. The state of alignment is as shown in FIG.

When the upper cylinder 34 is lowered, the hook 51 is inserted into the hook groove 49 of the first pallet 15. Next, the first pallet 15 is drawn out by the driving force of the rodless cylinder 12 and moved to the working position. The rodless cylinder 12 only needs to be driven in the opposite direction in order to receive the first pallet 15 that has been withdrawn again into the magazine 11.

Next, to withdraw the second pallet 37, the lower cylinder 33 is raised so that the hook 51 can be inserted with the hook groove 49 of the second pallet 37 as shown in FIG. 6C. Next, by the driving force of the rodless cylinder 12, the second pallet 37 can move to the working position along the rail 13. Sensors are provided at one side of the upper cylinder 34 and the lower cylinder 33, and when it cannot be raised or lowered to the correct position, it means that the hook 51 is not inserted into the hook groove 49 of the pallet. It means you can stop working.

The supply apparatus of the component tray according to the present invention ensures the stability of the component supply and the accuracy of the operation of the device since the alignment of the pallet can be achieved without any possibility of distracting the alignment of the components mounted on the component tray. It has the advantage of being. In addition, since all the driving units are implemented using a cylinder, there is an advantage that the reliability of the driving system is increased.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is only illustrative, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

A mega magazine capable of arranging a tray on the top and accommodating two pallets having hook grooves at different heights; An upper cylinder installed below the mega to raise and lower the mega; A lower cylinder installed below the upper cylinder to raise and lower the upper cylinder; A rodless cylinder installed to withdraw the pallet housed in the magazine; A base bracket reciprocating by the rodless cylinder; A bracket installed to allow relative movement along a guide with respect to the base bracket; And, And a hook extending from the bracket and inserted into the hook groove of the pallet. The method of claim 1, A pin fixed to the base bracket and inserted into a long hole formed in the bracket so as to limit the relative movement of the bracket with respect to the base bracket within a predetermined range and to buffer the relative movement of the bracket; And, And a spring connected to both ends of the pin and the one side of the bracket, respectively. The method of claim 1, And a pusher extending from the bracket to contact the sides of the pallets to align the pallets. The method of claim 1, And the hook is horizontally moved without interfering with the pallets or inserted into the hook groove according to the lift position of the upper cylinder and the lower cylinder. The method of claim 1, When the upper cylinder ascends, the hook does not interfere with the pallets during horizontal movement, and is raised or lowered by the upper cylinder or the lower cylinder when the hook and hook grooves of the pallet are in the same position in the vertical direction. And the hook is inserted into or detached from the hook groove of the pallet. The method of claim 1, A slot is formed on a surface of the pallet, and a moving part having a protrusion inserted into the slot and a spring is provided on one side thereof to press the tray disposed on the pallet against the stopper disposed along the side of the pallet. Feeder of the component tray, characterized in that

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