JPS60112529A - Loading apparatus - Google Patents

Abstract

PURPOSE:To increase the feeding speed for strip-shaped articles by lifting the strip-shaped articles in superposed state and attaching said article onto the outside of the bottom surface part of vaccum box bodies are advancing and retreating the vacuum box bodies horizontally and vertically. CONSTITUTION:After vacuum box bodies 22a and 22b are positioned over a loading base apparatus 1, strip-shaped articles 3 in superposed state are lifted upwaredly with an elevating plate 17 by the operation of an elevating cylinder 7, and the uppermost strip-shaped article 3a in each row is attached onto the outside of the bottom surface part of the vacuum box bodies 22a and 22b and adsorbed. Then, a motor is driven, and a feed screw is turned, and the vacuum box bodies 22a and 22b in each row are advanced and retreated horizontally and vertically through a movable frame integrally formed with a guide bush, and the strip-shaped article 3a in each row on the loading base apparatus 1 is taken- up and transported in succession onto a treating apparatus, and then the suction attraction force due to a blower is released, and the strip-shaped articles 3a are transported to the treating apparatus in succession.

Description

Detailed Description of the Invention (a) Technical field The present invention relates to a loading device, in particular, a loading device in which strip-shaped plated objects such as C lead frames are stacked in advance in multiple rows and one sheet is applied to each row and transferred to a plating processing device. This invention relates to a loading device suitable for feeding.

(b) Prior Art and Problems This type of loading device frequently picks up, transports, and delivers objects from one place to another, and some have been developed that can feed the object at a fairly high speed. However, if we take the loading device for plating processing equipment as an example,
IC! Strips like IJ-7 frames are thin and have small protrusions around them that can easily get caught on other objects, making them difficult to handle.Moreover, in order to improve efficiency, multiple strips were stacked in multiple rows in advance. Leave it as the state.

One sheet from each row is picked up and transported to the plating processing equipment.

As the number of rows that must be delivered increases, the equipment structure tends to become larger and more complex, and as the processing speed of the plating processing equipment improves, the supply capacity of the loading equipment must be considerably improved. .

For this reason, the applicant has made various improvements over the past.

We have developed and proposed a loading device in which a series of operations such as picking up, conveying, and handing over a strip-shaped object are summarized in an arc-shaped “ρ” movement trajectory, or a loading device in which a gate-shaped “mouth” movement trajectory is created (Unexamined Japanese Patent Publication No. Showa 58-100696.Jitkai Showa 5
6-1048,? No. 4), in the former case, the device has to be enlarged in order to take up a large working space to draw an arc-shaped movement trajectory; As it is transported and delivered,
As the height position at which it is picked up gradually decreases, the trajectory of the gate-shaped movement trajectory in the circular up-and-down direction becomes longer, and there is a limit to shortening the overall length of the gate-shaped movement trajectory.

Furthermore, since the vacuum box, which is the essential part of the loading device, is moved to draw a movement axis trace in the form of an arc or a gate, the structure for supporting and moving the vacuum box becomes complicated.

(C) Purpose The present invention has been made by focusing on the prior art of picking up strips, and is to lift a plurality of stacked strips by improving a mounting table device in which strips are set in advance. to make it easier to pick up the top layer with a vacuum box,
It is an object of the present invention to provide a loading device that can increase the feeding speed of strip-like objects by simply causing a vacuum box to draw a movement locus in the horizontal and front-back directions.

2) Structure In order to achieve the above object, the loading device according to the present invention has the structure of loading strip-like objects stacked in multiple rows and in a plurality on a mounting table device through a Navacuum box device that can move forward and backward. a In the loading device that feeds one pasture to the processing device at the same time in each row, the above-mentioned mounting table device is placed on the pace plate and positions the front and back and left and right sides of the strip according to the size of the strip. and a bracket unit arranged in multiple rows that maintains a stacked state;
The vacuum box device is equipped with a plurality of rows of lifting cylinders arranged on the lower surface of the pace plate in order to lift the strip-shaped object using the lifting plate disposed inside the bracket unit. horizontally and horizontally between the mounting table device and the processing device.
A movable frame that can freely move forward and backward in the front and rear directions, a vacuum box body that can be moved up and down through a hanging cylinder below this movable frame, and a pair of left and right vacuum boxes that are arranged in multiple rows and whose spacing can be adjusted freely, and a nine-branch pipe. A vacuum conduit is installed on a movable frame to connect each vacuum box body to a vacuum source, and the topmost strip of strips lifted by a mounting table device is placed on the bottom of the vacuum box body. One sheet in each row is picked up and moved forward and backward in the horizontal and front-back directions to freely supply the sheet.

(E) Example The details of the present invention will be explained below with reference to an example shown in the drawing. In addition, in the following explanation, the term "strip-like object" means an IC lead frame, and the term "processing device" refers to a pre-treatment device for plating, but of course the loading device according to the present invention is used to supply plated products. It is not limited to the use of
This method is applicable to strip-shaped objects in general.

This loading device mainly includes a mounting table device 1 and a vacuum box device 2. Mounting table device 1
The pedestal 4 is used to stack strips 3 in multiple rows and to constantly lift the topmost strip 3a to a constant height when picking up the vacuum box main body, which will be described later. A base plate 5 fixed horizontally to the base plate 5, a bracket unit 6 disposed on the upper surface side of the base plate 5, and an elevating cylinder 7 disposed on the lower surface side of the base plate 5.

It mainly includes a guide rod 8.

The base plate 5 is attached on its upper surface in the front-rear direction (direction of arrow A).
and a dovetail groove 9 for guiding in the left and right direction (in the direction of arrow B), and the bracket unit 6 is
．． It can be moved and positioned freely. The bracket unit 6, the lifting cylinder 7, and the guide rod 8 are each provided in a plurality of rows depending on the number of rows of the strips 3 placed on the base plate 5, but each row has the same structure and only one row is provided. I will explain it and omit the rest.

The bracket unit 6 is for positioning and maintaining the stacked state of the strip-shaped objects 3, and is symmetrical to the front, back, left and right 4.
It is composed of L-shaped brackets 5a, 5b, 5c, and 6a, and can be fixed at positions corresponding to the longitudinal and lateral widths of the strip-shaped object 3 using stoppers 10. Each of the platters 6a to 6d has a protrusion (not shown) on its lower surface that engages in the dovetail groove 9, and the stopper 10 passes through this protrusion and enters the bottom surface of the dovetail groove 9. It is said that it can be touched freely.

The lifting cylinder 7 is mounted on a block 12° plate 13. The rod 16 is attached to the bottom surface of the base plate 5 through the rod 14 and 15.
Each of the plurality of strips 3 is connected to the elevating plate 17 in the bracket unit 6 and is stacked on top of the elevating plate 17 in an opening 18 formed in the base plate 5 in the bracket unit 6. It can be raised and lowered freely. The guide rod 8 is as specifically shown in FIG.
A pair of guide bushings 19 are attached to the front and rear of one lifting cylinder 7, and are supported by a guide bush 19 fixed to the lower surface of the base plate 5, and the upper end thereof is connected to the lifting plate 17. The elevating plate 17 is composed of two upper and lower plates 17 a that are superposed together via screws 20 .

171), the vacuum box device 2 includes a movable frame 21 and a pair of left and right vacuum box bodies 22a.

22b and a vacuum conduit 23. The movable frame 21 is installed above the mounting table device 1 in the left-right direction and is movable horizontally and back and forth between the mounting table device 1 and the processing device 24. Specifically, it is supported by a pair of left and right guide shafts 25 installed in the front-rear direction on the frame 4, and connected via a guide bush 27 to a feed screw 26 also installed in the front-rear direction. This feed screw 26
The pulley 28 attached to the tip is the pulley 30 of the motor 29.
and is connected via a timing belt 31.

Vacuum box bodies 22a and 22bld.

They are arranged in pairs on the left and right for one row of strips 3, and a plurality of them are arranged in parallel below the movable frame 21 so as to be movable up and down via hanging cylinders 32.

The hanging cylinders 32 are a pair of front and rear rods.
A holder plate 34 is attached to the lower end of the holder plate 34, and a pair of left and right vacuum box bodies 22a are mounted in the dovetail grooves 35 of the holder plate 34.

22b is engaged and supported, and the fixing position can be adjusted in the left and right direction with a thumbscrew 36. When the horizontal width of the strip-shaped object 3 is large as shown by the imaginary line in FIG. The rod 3 of the hanging cylinder 32 is used to adjust the spacing.
A dog 37 is attached to the upper part of the vacuum box 3 so that it touches a limit switch 38 when the vacuum box main body 22a, 221) rises. This limit switch 38 is connected to the lifting cylinder 7 and the motor 29 on the mounting table device 1 side.
In addition, it sends ON and OFF signals.

A pair of left and right vacuum box bodies 22=.

A small hole 39 for suction is formed in the bottom of each of the parts 22b.
Bellows-shaped branch pipes 40 are connected to both the front and rear side surfaces, and a total of four positioning pins 41, one pair each for left and right, front and rear, are protruded from the outside of the bottom surface. The branch pipe 40 is connected on the one hand to a vacuum conduit 23 and further via a connecting pipe 42 to a blower 43 as a vacuum source. The conduit 23 is attached to a fixed band 44 on the movable frame 21.
The vacuum box bodies 22-a and 22b are attached to the vacuum box bodies 22-a and 22b, which are arranged in pairs in left and right rows below the movable frame 21, and apply suction force through the branch pipes 40p). .

Reference numeral 45 in FIG. 1 is a solenoid valve that controls each drive source.

Next, the effect will be explained. First, operate the mounting table device 1 L2,
A plurality of rows and a plurality of strips 3 are attached to each bracket unit 6.
position on the base plate 5 and maintain the stacked state. At this time, it is easy to adjust the brackets 6a to 6d forming each bracket unit 6 by one position according to the front and rear, left and right sizes of the strip-shaped object 3 by using the dovetail groove 9 as a guide. . FIG. 5(b) shows the case where the strips 3 are stacked in the bracket unit 6.
). Next, the vacuum box main body 22a is placed above the mounting table device 1.

22b is located, by operating the lifting cylinder 7 and lifting the lifting plate 17 and the stacked strips 3 upward, the uppermost strip 3 in each row will be lifted up.
a comes into contact with the outside of the bottom surface of the vacuum box bodies 22a and 22b.

Push up the rod 33 of the hanging cylinder 32 slightly. At this time, the left and right sides of the strip-shaped object 3a are regulated by positioning pins 41, and the small holes 39 formed in the bottoms of the vacuum box bodies 22a and 22b always correspond to the suction target parts on the left and right sides of the strip-shaped object 3a. Then, the blower 43 applies suction force to the small hole 39 through the conduit 230 branch W40, and the strip-shaped object 3 is applied to the outside of the bottom surface of each vacuum box body 22a, 22b.
A is applied to one sheet and suctioned.

When the rod 33 is pushed upward, the dog 37 touches the limit switch 38, and the lifting cylinder 7 is stopped from rising and then lowered. At the same time, the motor 29 rotates and the pulley 2
8. Feed screw 2 via 30 and timing belt 31
6 rotates.

A movable frame 21 integrated with a guide bushing 21 advances in the horizontal direction along with the vacuum box tubes 22a and 22b in each row, moves from above the mounting table device 1 to above the processing device 24, stops there, and is moved by the blower 43. The suction force is released, one sheet is placed in each row on the processing device 24, and the conveyed strip-shaped object 3a is delivered.At the same time, the movable frame 21 is turned off and returned to work, and the above operation is repeated again. It is food.

If the size of the strip-shaped object 3 to be supplied changes, the stopper 10 on the mounting table device 1 side is loosened and the brackets) 6a to
Adjust the position of 6d by moving it using the dovetail groove 9 as a guide [see the position of the imaginary line in Figs. Adjust the distance between the pair of left and right vacuum box bodies 22a, 221) with respect to 34 by moving them using the dovetail grooves 35 as a guide [see the position of the imaginary line in FIG. 4]. This is to prevent the suction/adsorption function of the small hole 39 from deteriorating by adjusting the relative position of the small hole 39.

(f) Effects Since the loading device according to the present invention has the content described above, it is not limited to plated rectangular objects such as IC lead frames, but is capable of handling general rectangular objects in a series of operations such as picking up, transporting, and handing over. It is capable of performing its functions extremely efficiently. And especially.

(a) The stacked strips are lifted by the lift cylinder and brought into contact with the outside of the bottom of the vacuum box body, so the vacuum box body is lowered each time to pick up and pick up the strips. There is no need to lift the vacuum box back up, and the vacuum box body can be moved simply horizontally.
Only forward and backward movement is required, and the feeding speed can be increased accordingly.

('b) As the strips are fed to the processing equipment, the number of stacked strips decreases, one strip is applied in each row, and the height position of the topmost strip to be taken out changes. Because it is always lifted and brought into contact with the bottom of the vacuum box body, the suction is reliable regardless of changes in the height position of the strip-shaped object, and the strip-shaped object can be efficiently picked up by the vacuum box and the box body until the last one. It is possible.

(cl) By removing the device for lowering and raising the vacuum box main body for adsorbing and removing strip-shaped objects from the vacuum box device, the overall structure of the vacuum box device on the movable side is simplified and Can be made smaller.

(d) By adjusting the position of the bracket unit on the M stand device side and adjusting the distance between the left and right vacuum box bodies on the vacuum box device side, it is possible to process strip-shaped objects with 9 different widths... an excellent effect. There is.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing one embodiment of a loading device according to the present invention. FIG. 2 is a side view of the loading device seen from the direction indicated by the arrow (■) in FIG. FIG. 6 is an enlarged side view of the main part indicated by the arrow 1 in FIG. Figure 4 shows the side view of the main part seen from the direction of the arrow ■ in Figure 6.
Figure 5 (a) shows a state in which the elevating plate is slightly raised, Figure 5 (b) shows a state in which multiple strips are stacked, and Figure 5 (c
) is an enlarged perspective view of the mounting table device, each showing a state before mounting a strip-shaped object.゛ 1 Mounting table device 2 Vacuum box device 3 Strip-shaped object. 3a Top strip 6 Bracket unit 7 Lifting cylinder 17 Lifting plate 21 Movable frame 234 Pipe 24 Processing device 32 Hanging cylinder 39 Small hole 43 Blower Figure 1Δ Figure 2 Figure 3 Soot Figure 4 Procedure amendment (Method) Mr. Commissioner of the Special Agency 159" 3rd printing 1, 1 Timber Cattle 1982 Temochi 215986 2, Title of the invention Loading device 3, Relationship with the person making the amendment case Patent applicant 4, Agent February 28, 1981 (shipping date) 6. “Brief explanation of drawings” column 7 of the specification subject to amendment 7. Contents of amendment

Claims (1)

[Scope of Claims] A loading device that simultaneously supplies strips of strips stacked in multiple rows on a mounting table device to a processing device, one strip in each row via a vacuum box device that can move forward and backward. . The above-mentioned mounting table device consists of a base plate, and a position on the base plate that is placed in front and behind and on top of the base plate according to the size of the strip-shaped object.
A bracket unit arranged in multiple rows for positioning the left and right sides and maintaining a stacked state; and - lifting cylinders arranged in multiple rows on the lower surface of the base plate to lift the strip-shaped object with the lifting plate arranged inside the bracket unit. Be prepared. The vacuum box device includes a movable frame that is installed above the mounting table device in the left-right direction and is movable horizontally and back and forth between the mounting table device and the processing device, and a movable frame that is suspended below the movable frame. A pair of left and right vacuum box bodies arranged in multiple rows that can be moved up and down via a lowering cylinder and whose spacing can be adjusted freely, and each vacuum box main unit (Jl- mounted on a movable frame to be connected to all vacuum sources) via a branch pipe. It is equipped with a vacuum conduit 9 and the topmost strip of the strips lifted by the mounting table device is placed on the bottom of the vacuum box main body to adsorb one strip in each row and move it forward and backward in the horizontal and front-back directions. A rope ink device characterized by being able to freely supply a moving L7.