JPH06151677A - Plated article supply device - Google Patents

Abstract

PURPOSE:To use a large number of racks which hold a single plated article on an assumption that a single plated article be handled so as to lay out an anode near the plated article in a plating apparatus and provide a plated article supply device which provides various kinds of device designed to supply plated articles one by one with high efficiency. CONSTITUTION:Plated articles 109 in a horizontal state is carried to a start section 112 of a plated article carrier line one by one where a pick up carrier means 101 to deliver the plated articles 109 to a plated article carrier rack 102 and the rack 102 designed to receive more easily the plated articles 109 with the rack 102 are forced to keep a horizontal state. There are installed a swing plate 103 which enables the rack 102 to take a vertical posture after having received the plated articles and a rack opening and closing means 104 which serves to hold the plated articles 109 between both a fixed arm 114 and a movable arm 115, interlocking with the movement of the swing plate 103, thereby forming a plated article supply device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention holds one strip-shaped plated product (hereinafter referred to as a plated product) such as an IC lead frame and holds it, and a plating line of a plating apparatus (for example, an outer lead portion after resin molding) On a solder plating line, a nickel plating line before silver plating, a full-scale palladium plating line before molding, and the like) for supplying a plated material, which is generally called a loading device.

[0002]

2. Description of the Related Art Conventionally, in order to perform a plating treatment on a plated product of this type, an automatic plating apparatus in which a series of steps are arranged in a continuous line is often used in terms of processing efficiency. That is, the supply unit, the pretreatment unit, the main plating treatment unit, the posttreatment unit, and the take-out unit are continuously arranged to form a plating line, and the plating target is sequentially conveyed on the plating line to perform the plating treatment.

As a method of transporting a plated product on such a plating line, there is a technique of holding the plated product by a jig called a rack and transporting the plated product through the rack. (For example, refer to the holding jig disclosed in Japanese Patent Laid-Open No. 3-277796.) This type of holding jig holds a large number of plated products in one rack. It is equipped with comb teeth on the girders and holds a large number of plated products between the comb teeth in a horizontal and vertical state, and treats the whole as one rack to convey a large number of plated products at the same time for plating treatment. .

[0004]

By the way, in the case of disposing the anode in the plated product placed in the plating apparatus during the main plating treatment, it is desirable to dispose the anode as close to the plated product as possible, but the conventional rack as described above is used. However, since a large number of plated products are placed in the comb teeth of a girder to form a horizontally long vertical group, it is difficult to place the anodes further above and below the plated product group. In addition, it is difficult to position the anode so as to face the plating surface of each plating product having a horizontally long vertical shape.

Therefore, the applicant of the present invention, when arranging the anode on the plated product placed in the plating apparatus during the present plating treatment, can arrange the anode so as to face the plated surface of the horizontally elongated plated product immediately and closely. Considered the use of racks. For that purpose, a plated material feeder capable of satisfying the following conditions is required. That is, (1) one plated product should be handled and the plated product can be held in a horizontally long vertical state in the plating apparatus.
(2) Assuming the use of a transfer device that employs a tact system, a plurality of racks are applied to the plating device at regular intervals so that one plated product can be sequentially and efficiently supplied to a large number of racks. (3) In consideration of handling convenience, it is possible to supply the plated product to the rack in a horizontal state at the time of supply. For this purpose, once the rack is in a horizontal state, one plated product is supplied to the rack, and then the rack is in a vertical state. It is necessary to satisfy many conditions such as being able to maintain the posture. And this invention aims at providing the supply apparatus of the plating substance which can satisfy these conditions.

[0006]

SUMMARY OF THE INVENTION In the present invention, the picked-up material feeding device is mainly composed of the pick-up and feeding means, the rack for feeding the plated material, the swing plate, and the rack opening / closing means. Then, the pick-up and transport means picks up one strip-shaped plated product placed in advance in a horizontal state, carries it to the start portion of the plated product transport line, and drops the plated product in a horizontal state. In addition, the rack for transporting plated products is equipped with a rod that allows the cathode current to flow freely.
Both fixed and movable arms, which project in the longitudinal cross direction and also allow cathode current to flow freely, are arranged respectively, and both fixed and movable arms have pins for supporting at least three points of plated products at their tips. The movable arm is provided with biasing means that are provided at facing positions, and that make the movable arm rotatable with respect to the rod and press the pin of the movable arm toward the pin of the fixed arm. Further, the swing plate swivels and pushes against the rack in the vertical state from below, maintains the rack in a horizontal state with the rack placed on the rack, and returns and swivels after the rack receives the plated product. The rack is allowed to stand vertically by its own weight. Further, the rack opening / closing means rotates the movable arm in the opening direction against the urging means with respect to the rack on the swing plate which is in the horizontal state, and the pin of the fixed / movable arm on the swing plate. In the meantime, the horizontal plated product is received to allow the movable arm to rotate in the closing direction later.

[0007]

[Operation] The pick-up and transport means picks up one strip of plated article placed horizontally in advance in the vicinity of the start section of the plated article transport line and carries it to the start section of the plated article transport line, where it is picked up. In order to transfer the plated product to the rack, the adsorption is released and the plated product is dropped in a horizontal state. At this time, in the start part, the swing plate works and cooperates with the rack so that the plated product can be received. That is, when the swing plate swivels and pushes against the above rack in the vertical state from below, and the rack is kept horizontal while the rack is placed on the rack, the rack opening / closing means operates on the rack on the swing plate. If the movable arm is rotated in the opening direction against the urging means, both fixed and movable arms will be opened, so the plated product dropped from the suction transfer means in a horizontal state immediately in a horizontal state. On the waiting swing plate, while both fixed and movable arms are open,
Will land. In the starting portion, the rod of the rack is always positioned laterally in a direction intersecting 90 ° with the traveling direction of the plating line, and both ends of the rod are held at the same height. The same applies to the following steps. .

Then, the rack opening / closing means allows the movable arm to rotate in the closing direction, so that the plated object is clamped between the pins of both the fixed and movable arms, and the swing plate further pivots to return to the rack. At the same time, the rod rotates about its own weight and becomes substantially vertical. As a result, the rack is in a posture of holding the plated product in a horizontally long vertical state, and the rack is successively transported on the plated product transport line in a substantially vertical state by the transport means. Racks that are in a substantially vertical state due to their own weight are sequentially raised, moved forward, lowered, and moved to the pre-treatment section, main plating treatment section, and post-treatment section of the plating equipment in that position.
The above operation is repeatedly carried out by an appropriate carrying mechanism to carry.

[0009]

Embodiments will be described below with reference to the drawings. Figure 1
Is an overall schematic view of a plating system, which includes a plating material supply device 100, a plating material transport device 200, and a plating device 30.
0, take-out device 400, rack post-processing device 500,
The entire plating system is configured by the rack return device 600 and the like.

[Regarding Plating Material Supply Device 100] This plating material supply device 100 is mainly used for picking up and conveying means 1.
01, a rack 102 for transporting plated products, a swing plate 103, and a rack opening / closing means 104. The following will be described in order.

[Regarding Pickup and Conveyance Unit 101] The pickup and conveyance unit 101 is composed of a pad carriage 105 and a suction pad 10.
6 and. The pad cart 105 includes a left and right actuator 107 and a vertical actuator 108.
Are connected to each other, and a plurality of plated products 109 are preliminarily loaded and the uppermost plated product 109 is always kept at a predetermined height position. When traveling right and left directly above, the actuator 108 causes the pad carriage 105 to descend and return to rise, and the table 111 is picked up by picking up one of the uppermost plated products 109 in a horizontal state and picked up by the start unit 112. When the adsorption is released, the plated product 109 is dropped in a horizontal state and delivered to the rack 102 waiting in advance. In the illustrated example, the "sucking" means is explained as the "picking up" means, but a "clamping" mechanism such as a chuck may be used.

[Regarding rack 102 for transporting plated products] The rack 102 for transporting plated products is a rod 113.
And both fixed and movable arms 1 arranged on this rod 113
It is mainly composed of 14, 115. First rod 1
13 will be described. The rod 113 is made of stainless steel so as to allow the cathode current to flow freely, and has a length L2 longer than the depth length L1 of the plating apparatus 300 (see FIG. 8). In the following description, “depth length L1” means 9 with respect to “plating line” as shown in FIG.
It means a length including the processing tank 301 in the 0-degree crossing direction and its auxiliary equipment, for example, the vertical moving means 302 of the anode, and "length L2" means a length necessary and sufficient to straddle them. It is used as something to do.

The rod 113 has a vertically long cross-sectional shape in the state shown in FIGS. 6 and 7, and both ends thereof are made of stainless steel and have a positioning guide 1 formed in a shape like an abacus ball.
16 are provided respectively. The cross-sectional shape of the rod 113 in the vicinity of both guides 116 is downward (toward the protruding direction of the fixed and movable arms 114 and 115), and an acute angled portion 117 is provided. Next, the fixed and movable arms 114 and 115 will be described. Both the fixed and movable arms 114 and 115 are also made of stainless steel so as to allow the cathode current to flow freely, and are arranged so as to project in the longitudinal crossing direction of the rod 113 (downward in FIGS. 6 and 7). Pins 118 and 119 for supporting at least three points of the plated product 109 as the "IC lead frame after resin molding" are provided facing each other at the tips of the fixed and movable arms 114 and 115.

Two fixed arms 114 are arranged on the rod 113, and a movable arm 115 is provided on the bent portion 120.
Rod 11 has a slightly larger L-shaped shape
It is rotatable with respect to 3 by one rotation shaft 121. Therefore, in the figure, the pin 118 of the fixed arm 114 forms two upper points, and the movable arm 115 with respect to these two points.
The pin 119 will form a lower point. As shown in FIG. 7, the pins 118 and 119 are located at the tips of both fixed and movable arms 114 and 115, and are oriented in the direction of 90 degrees (see FIG.
It is provided so as to project (to the left), and a groove 122 for preventing slippage and a bulging portion 123 for preventing disengagement are provided respectively. Since the bent portion 120 of the movable arm 115 enters the liquid during the plating process, the side portion has an acute angle as shown in FIG. 7 in consideration of drainage when the liquid is pulled up from the liquid.

The movable arm 115 has its bent portion 120 projected in the direction transverse to the longitudinal direction of the rod 113.
3 is rotatably supported by a rotation shaft 121, and the pin 119 at the tip is fixed to the pin 1 of the fixed arm 114.
A tension spring 124 is provided on the movable arm 115 as a “biasing means” for pressing it toward the armature 18. The movable arm 115 has its pin 1 rotated by the rotation of the rotary actuator 126 as the "rack opening / closing means 104".
When 27 rotates horizontally and acts so as to exert a pressing force on the upper end portion of the movable arm 115, it rotates in the opening direction (the arrow K direction in FIGS. 5 and 6) against the tension spring 124. Further, when the pin 127 of the rotary actuator 126 releases the pressing force, the action from the other ends, so to speak, so that the movable arm 115 is closed by the tensile force of the tension spring 124 (shown by arrows in FIGS. 5 and 6). Rotate in the H direction). Therefore, regardless of the width size of the plated object 109, this rack 1
In 02, pin 11 of both fixed and movable arms 114 and 115
Between 8 and 119, the sides of the plated product 109 can be always supported at three points. (In FIG. 6, 125 indicates a plated product having a small width size.)

"About Swing Plate 103" The swing plate 103 mainly comprises a plate 128 and a swing means 129. As shown in FIG. 3, the plate 128 is provided with a concave portion 131 for receiving the pin 118 of the rack 102 and an arcuate concave portion 132 for receiving the other pin 119 on the pressing surface 130, and the pressing surface 130 is in a horizontal state to be plated. Each pin 118 of the rack 102, which is forced to be horizontal on the pressing surface 130 when receiving 109,
The side portion of the plated product 109 is located in the substantially middle portion of the portion 119 (the portion where the anti-slip groove 122 is formed) so that reliable three-point support (clamping) to the side portion can be achieved. There is. In FIG. 3, the movable arm 115 of the rack 102 and its pin 119 are not shown. The swinging means 129 includes a supporting bar 133 connected to the back surface of the plate 128, side arms 134 at both ends of the bar 133, and both side arms 134 rotated by a rotation shaft 135 thereof.
A pressure cylinder 136 for swinging 28 is provided.

The swing plate 103 is operated by pressing the pressure cylinder 136, rotating the side arm 134,
By swinging the plate 128 via the bar 133, the rack 102 initially in the vertical state is initially moved.
To the pressing surface 130 by swiveling from below
With the rack 102 placed on the rack, maintain a horizontal posture together with the rack 102, and use the rack 102 for plating 1
After the receipt of 09 is completed, it will turn back and the rack 1
02 is allowed to be in a vertical state by its own weight.

[Regarding Rack Opening / Closing Means 104] The rack opening / closing means 104 specifically means a rotary actuator 126 as shown in FIG. 5, and when the rack 102 is brought into a horizontal state by the swing plate 103, the rack 102. The pin 127 is previously exposed at a position corresponding to the vicinity of the upper end of the movable arm 115. When the rotary actuator 126 operates, the pin 127 rotates on a horizontal plane to apply a pressing force to the movable arm 115,
The movable arm 115 and thus the pin 119 thereof are forcibly moved in the direction away from the tension spring 124 and away from the fixed arm 114 and thus the pin 118. In this state, both fixed and movable arms 114, 115 of the rack 102
Will be open.

Therefore, in this state, if the plated product 109 is dropped from the pick-up and transport means 101 located directly above in the horizontal state, it will be fixed or movable on the plate 128 immediately below and standing by in the horizontal state. It will land while the arms 114, 115 are open. Then, conversely, when the rotary actuator 126 releases the pressing force, both the fixed and movable arms 114 and 115 are closed on the pressing surface 130 of the plate 128, and the pin 119 moves in the arc-shaped recess 132 to move the pin 118. In cooperation with, the three sides of the plated product 109 are supported.

When the swing plate 103 is returned and swiveled, the rack 102 has both fixed and movable arms 114 and 115 protruding due to its shape.
Since it is in the state of holding 09, the rack 102 also automatically rotates around the rod 113 and returns to the original vertical state.

[Concerning the apparatus 200 for transporting the plated material] The rack 102 which has been in the original vertical state in the above description is shown in FIG.
Is placed on the girder 201 of the carrying device 200. Digit 2
01 are arranged in parallel on both sides of the plating apparatus 300, and by adopting a tact system, the rack 102 is repeatedly moved up, forward, and down at the same interval (pitch) to the right in FIG. It will be transported. The circular shape repeatedly illustrated on the right side in the center of FIG.
The two guides 116 are shown and the guides 116 are arranged in the plating apparatus 300 at the same intervals.

The girder 201 is combined with a pressure cylinder 202 for forward / backward movement and a pressure cylinder 203 for up / down movement. Is to repeat the same operation. At this time, the plurality of guides 1 shown in FIG.
16 or the racks 102 are each at the same time as the plating device 30.
It is lifted up from the upper side position of 0, moved forward by 1 pitch to the right, lowered and placed at the upper side position of the plating apparatus 300. By repeating this operation, a predetermined plating process is performed by the plating apparatus 300. To receive.

[Regarding Plating Device 300] This plating device 300 includes a supply unit 303 (corresponding to the start unit 112 of the plated product transport line), a pretreatment unit 304, a main plating treatment unit 305, a posttreatment unit 306, and a take-out unit 307 ( It is mainly composed of a take-out device 400). In the main plating processing unit 305, a large number of anodes 3 corresponding to the number of the plated products 109 received in the processing tank 301 are provided.
08 is exposed to the inside of the processing tank 301 via the vertical movement means 302. The rack 102 holds one plated product 109 and holds it in a horizontally long and substantially vertical state, so that the anode 308 is also held in a horizontally long and substantially vertically state via the holding arm 309 in a cantilever state. In FIG. 1, only two anodes 308 are shown and the other anodes 308 are omitted.

A large number of anodes 308 are attached to a holding girder 310 via holding arms 309 at the same intervals, respectively, and a pressure cylinder 3 as a vertical moving means 302.
At 11 at the same time, it rises in the treatment tank 301 (in the plating solution) to enter between the plated objects 109, and descends to the treatment tank 3
Standing near the bottom of 01 and rising again, the plated product 10
Enter between 9 and feel as if the front and rear anodes 30
8 has a state in which one plated product 109 is sandwiched between them, so that the anode 3 can be attached to the plated surface of the plated product 109.
08 occupies an extremely close position. Therefore, the plating efficiency is extremely improved. In the main plating processing unit 305 and other processing units, a cathodic current is applied to the plated product 109 from the current-carrying member arranged on the upper side of the processing tank 301 via the rack 102 to make the plated product 109 a cathode, and necessary treatment is performed. Is to do.

The post-treatment unit 306 is a neutralization / cleaning treatment tank 31.
2, rack rotation / leveling device 313, oven device 3
14 is included. Plated product 109 (rack 102) sent one by one by the tact system
The rack rotation / leveling device 313 receives the
Oven device 3 by leveling the plated product 109 with 02
It is delivered to the conveying means 315 in the unit 14, dried, and taken out by the take-out unit 307 (take-out device 400).

[About take-out device 400] The take-out device 400 is mainly composed of an elevator 401, a shift device 402 and a lift 403. Oven equipment 314
The plated product 109 that has been delivered to the transport means 315 inside and subjected to the drying process is taken out one by one on the elevator 401 and loaded a predetermined number (for example, 300), and it is treated as one unit, The shift device 402 shown in FIG.
To the right of. Then, the receiving rack-shaped bar 404 of the lift 403 picks up one unit from the bottom and transfers it to the upper side, and the worker takes it out appropriately.

[Regarding the post-treatment device 500 of the rack] The post-treatment device 500 of this rack is located above the oven device 314, and the rack 102 is rotated and leveled by the post-treatment part 306 of the plating device 300. When the plated product 109 is transferred to the transporting means 315 in the oven device 314, so to speak, when it becomes empty, the empty rack 102 is received. In the rack post-treatment device 500, the plating (solder) of the rack 102, particularly the movable arm 115 immersed in the plating solution, is removed.

[Regarding the Rack Return Device 600] After the plating is stripped, the rack 102 is sent back to the start unit 112. For this reason, a large number of hooks 602 are provided on a pair of endless chains 601 arranged in parallel, and each pair of hooks 602 is included in one rack 1.
02 is received and transferred on the plating apparatus 300 while being hung to the left in FIG. 1 and returned to the start unit 112.

[0029]

EFFECTS OF THE INVENTION As described above, the plated material supply apparatus according to the present invention can be expected to have many effects. The main effects are listed as follows: (1) One plated material is applied. Since the plated product can be held in a horizontally long vertical state in the plating device, when arranging the anode in the plated product placed in the plating device during the main plating process, the plated product in which the anode is horizontally long vertically is used. It is expected to improve the plating efficiency because it can be placed immediately opposite to the plating surface, and (2) it is premised on the use of a transfer device that employs a tact system, and multiple racks can be installed in the plating device at regular intervals. It is also one in which the plated product is horizontally long and is placed in a substantially vertical state, so that one plated product can be sequentially and efficiently supplied to a number of racks. (3) When the plated product is supplied horizontally Picking up a large number of plated products that are loaded in one state allows the plated products to be delivered and supplied in a horizontal state to a rack that is in a horizontal state each time. Since the rack which has been in the horizontal state is returned to the posture in the vertical state, there is an effect that it can be easily transported.

[0030]

[Brief description of drawings]

FIG. 1 is an overall explanatory view of a plating system.

FIG. 2 is a schematic side view showing a plating apparatus.

FIG. 3 is a side view showing a device for supplying a plated product, as viewed in the direction of arrow A in FIG.

FIG. 4 is a side view showing a device for supplying a plated product, as viewed in the direction of arrow B in FIG. 3.

5 is a plan view showing the rack opening / closing means as viewed in the direction of arrow C in FIG. 4. FIG.

FIG. 6 is a side view showing the rack as seen from the direction of the arrow D in FIG. 1.

FIG. 7 is a side view of the rack as viewed in the direction of arrow E in FIG.

FIG. 8 is a view showing a plating device and a rack restoring device.
The side view seen from the arrow F and the F direction in the inside.

FIG. 9 is an enlarged side view of a device for taking out plated products.

[Explanation of Codes] 100 Plating Material Supply Device 101 Pickup / Conveying Means 102 Rack 103 Swing Plate 104 Rack Opening / Closing Means 109 Plating Product 112 Starting Point of Plating Product Conveying Line 113 Rod 115 Movable Arm 200 Plating Product Conveying Device 300 Plating Device 400 removal device 500 rack post-treatment device 600 rack restoration device

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location // B65G 47/91 A 8010-3F

Claims (2)

[Claims] 1. A pick-up and transport means for picking up one strip-shaped plated product which is placed in advance in a horizontal state and carrying it to the start portion of the plated product transport line and dropping the plated product in a horizontal state, and a cathode current. Both fixed and movable arms are arranged by projecting in the direction intersecting the length of the rod that can be energized, and both fixed and movable arms face with pins for supporting at least three points of plated products at their tips. A rack for transporting plated products, which is provided in each of the combined positions, and in which the movable arm is rotatable with respect to the rod and the biasing means for pressing the pin of the movable arm toward the pin of the fixed arm is provided on the movable arm, Rotate from below to push against the rack in the above state, keep the rack horizontal with the rack placed on top, and return to the rack after receiving the plated product by the rack. The swing plate that allows it to be in a vertical state by its own weight, and with respect to the rack on the swing plate in a horizontal state, the movable arm is rotated in the opening direction against the biasing means, Further, there is provided a plated material supply device comprising: a rack opening / closing means for allowing the plated material in a horizontal state to be received between the pins of both the fixed and movable arms and allowing the movable arm to rotate in the closing direction later. 2. A pin receiving concave portion of a fixed arm and a curved pin receiving concave portion of a movable arm corresponding to a locus of movement of the pin due to opening / closing operation of the movable arm, on a pressing surface of the swing plate against the rack. The plated material supply apparatus according to claim 1, further comprising: