JPH03211900A - Method and apparatus for supplying of stick magazine - Google Patents

Abstract

PURPOSE:To smoothly and effectively discharge a stick of a lowermost stage and supply a stick of next stage and to scarcely scatter components by supporting the end of the stick of the next stage, forming a gap between both the sticks, and allowing the stick of the lowermost stage to be free by using the gap. CONSTITUTION:When the lowermost stage of a plurality of stacked sticks becomes vacant, the stick 1a is first deviated obliquely upward, the support 11 of the end side is removed, and the end of the stick 1b of next stage is supported. Accordingly, the end of the stick 1a of the lowermost stage is dropped by its own weight, and a triangular gap S is formed to the stick 1b of the next stage. Then, when the rear end of the stick 1 after the next stage is raised by the pin 13a of a pin cylinder 13 by using the gap S, the stick 1a of the lowermost stage becomes free to be dropped. In this case, a support member 11 for supporting the rear end of the stick 1b of next stage is inserted into the rear end of the stick. Thus, it is not necessary to remove rubber caps at both ends of the stick, a fear of scattering components at the time of setting the stick is reduced by half, and its operating efficiency is improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is a method of stacking a plurality of stick magazines storing a large number of electronic components diagonally, sequentially supplying the internal electronic components, and then storing the electronic components in the empty bottom shelf. The present invention relates to a stick magazine supplying method and apparatus for discharging a stick magazine and lowering the next and subsequent stick magazines one by one.

[Conventional technology]

2. Description of the Related Art Conventionally, stick magazines have been supplied in which a large number of chip-shaped electronic components such as ICs are arranged and housed.

Fig. 14 shows an example of such a stick magazine (hereinafter referred to as "stick"), and inside the hollow stick 1 there are many electronic parts (hereinafter referred to as "components").
2 are housed in a line, and rubber caps 3, 3 are inserted at both ends to prevent the parts housed inside from falling off.

Remove at least the rubber cap from the tip of the sticks like the one above and stack multiple sticks diagonally.

In a parts supply device, parts stored inside the stick are slid down a chute using their own weight from the lowest stick, and the empty sticks are discharged to the outside in a parts supply device that suctions and holds each piece one by one at the end of the chute and supplies it to a predetermined position. However, by lowering the sticks from the next stage onward one stage at a time, a large number of parts can be taken out in succession.

Hitherto, as this type of stick feeding device, there has been known, for example, one shown in Japanese Patent Application Laid-open No. 148197/1983.

To briefly explain the outline with reference to FIGS. 15 to 17, a plurality of sticks 1 have rubber caps 3 at both ends,
3 removed, they are stacked obliquely in the carrier cassette 4, and the lower surface is supported by one end 5a of the chute 5 and the bottom surface 4e of the carrier cassette 4.

In this state, the parts 2 stored inside the stick 1a at the lowest stage from the tip side slide down the chute 5 one by one due to their own weight, and are then picked up at the lowest end and sent to the next process.

When the component 2 of the lowest stick 1a becomes empty and a sensor (not shown) detects this, the support cylinder 6 operates to move the support member 6a fixed to the tip of the rod into the rear end of the next stick 1b. At the same time, the ratio arm 7 is inserted.
The stick 1a is grasped from below by the claw 8, and the first
It is moved in the direction of arrow A in FIG. 5 to be in the state shown in FIG. 16. In some cases, the support on the rear end side of the stick 1a is released at this time.

As a result, the tip of the stick 1a separates from the right end of the chute 5, and when the take-out arm 7 is rotated to the left and the grip of the claw 8 is released, the stick 1a falls, and the sticks 1b and subsequent sticks of the next stage are released. The stick descends one step at a time due to its own weight, reaching the state shown in Figure 17, and the stick 1
The parts stored in b are successively fed onto the chute 5.

[Problem to be solved by the invention]

However, in such conventional stick feeding methods and devices, when discharging the bottom stick,
The rear end of the next stick is supported by inserting a support member, so the rubber caps inserted at both ends of the stick can be attached not only to the tip side where parts are supplied, but also to the rear end. The ends must also be removed.

Therefore, when the stick is set diagonally in the carrier cassette, the internal parts often tend to scatter, posing a problem in workability when storing the stick.

In addition, the cross-sectional shape of the stick varies depending on the shape of the parts stored in it and is hardly standardized, so the support part of the support cylinder must be prepared for each type of stick, and the bottom Since the distance between the first stage and the next stage was also different, it was troublesome to adjust the height of the support cylinder.

The present invention has been made in view of the above points, and an object of the present invention is to provide a stick feeding method and device that prevent internal parts from dissipating when setting sticks and that can be used commonly for many types of sticks without the need for adjustment. shall be.

[Means to solve the problem]

In order to achieve the above object, the stick supply method according to the present invention stacks a plurality of sticks containing a large number of parts diagonally, takes out the parts from the lowest stick, and then transfers the empty lowest stick to the stack. Move diagonally upward in the longitudinal direction, remove the support on the tip side, and support the tip side of the next stick magazine to form a gap between both sticks, and use this gap to remove the support on the tip side of the next stick magazine. After lifting and supporting the end side upwards and allowing the stick at the bottom to fall free, the support at both ends of the next stick is released and the subsequent sticks are lowered one step at a time. .

Further, the stick feeding device according to the present invention is a device for carrying out the above method, and includes a detection means for detecting the presence or absence of a component in the lowest stick, and a detection means for receiving a signal indicating that there is no component from the detection means. Push the lowest stick diagonally upward in the longitudinal direction, release the support on the tip side to allow it to fall due to its own weight, support the tip side of the first stick, and create a space between the tips of both sticks. A gap forming means for forming a gap, and a separating means that is inserted into the gap formed by the gap forming means and lifts the rear end side of the next stick to separate the next and subsequent sticks from the lowest stick. It was established.

[For production]

According to the above stick feeding method and device? When the bottom tier of the stacked sticks on the 11th side becomes empty, the stick is first shifted diagonally upward to remove the support on the tip side and support the tip side of the next tier of sticks.

As a result, the tip side of the stick at the bottom tier falls due to its own weight, and a triangular gap is formed between it and the stick at the next tier. Therefore, if you use this gap to lift the rear end of the stick from the next stage onwards.

When the lowest stick becomes free and falls, a support member that supports the rear end of the next stick is inserted inside the rear end of the stick. Unlike conventional devices, the rubber caps at both ends of the stick are inserted. There is no need to remove both parts, and the risk of parts falling apart when setting the stick is halved, improving work efficiency.

Further, there is no need to provide the above-mentioned support members for various types of sticks, and there is no need to adjust their heights.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 13 of the accompanying drawings, and parts corresponding to FIGS. 15 to 17 are designated by the same reference numerals.

FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a side sectional view thereof.

Guide plates 4a are provided at the front and rear of a carrier cassette 4 that stores a plurality of stacked sticks 1 containing a large number of parts 2;
4b is provided to regulate the position of the stick 1 in the longitudinal direction.

A window 4c is provided at the bottom of the guide plate 4a to support only the upper part of the outer frame of the lowest stick 1a so that the internal parts 2 can flow out and slide down onto the chute 5 due to their own weight, and a window 4c is provided at the bottom of the guide plate 4b. A window 4d is provided so that the stick 1 can be inserted therethrough. Further, a cassette bottom plate 4e is provided integrally with the guide plates 4a and 4b on the extended surface of the chute 5, so that only both ends of the stick 1a can be supported by the cassette bottom plate 4e and one end 5a of the chute 5.

An air cylinder 10 is provided below the chute 5, and a pressure plate 11 is fixed to the tip of the rod 10a to press the stick 1.
This constitutes the pressing device of a. As shown in detail in FIG.
can be moved diagonally upward by pressing both sides of the tip of the bottom stick 1a, and at the same time, this movement allows the next stick 1b to be moved on the top surface.
be able to support the bottom surface of the

Furthermore, an air cylinder 12 is provided on the side of the stick 1 on the cassette bottom plate 4e with an inclination angle larger than that of the stick 1, and a small bottle cylinder 13 operated by air is fixed to the tip of the rod 12a. The pin 1''la of the pin cylinder 13 is made to protrude toward the stick 1 side to constitute a lifting device for the rear end side of the next stick 1b.

The pressing device and the lifting device constitute a gap forming means between the lowest stick and the next stick.

In FIG. 2, reference numeral 14 denotes a sensor such as a reflective photosensor provided at the top of the chute 5, and detects the presence or absence of parts in the stick 1a at the lowest stage.

Usually, multiple lines like the one above are arranged in parallel,
Different types of parts are supplied as needed.

FIG. 4 is a block diagram showing the control system of this device. When a component-free signal is input from the sensor 14 to the control circuit 15, a command from the control circuit 15 causes the solenoid valves 1B, 17
．． The air cylinder 10.12 and the pin cylinder 13 are actuated via 18&.

FIG. 5 shows the above sensor 14. It is a time chart showing the operation timing of the air cylinder 10°12 and the pin cylinder 13.

Next, the operation of this embodiment constructed as described above will be explained in accordance with the flowchart shown in FIG. 6 with reference to FIG. 5 and FIGS. 7 to 11.

When a plurality of sticks 1 with one rubber cap 3 removed are stacked and stored in the carrier cassette 4 with the other rubber cap side facing backward, the parts 2 will flow out from the tip side of the bottom stick 1a. The parts that slide down the chute 5 in alignment and reach the end of the chute 5 are picked up by a parts mounting device (not shown) and sent to the next process.

The supply of parts from the stick 1a is constantly detected by the sensor 14, but when the supply of parts stops and the state shown in FIG. 7 is reached, a signal from the sensor 14 is input to the control circuit 15.

When this signal is received, the solenoid valve 16 is switched in response to a command from the control circuit 15, the air cylinder 10 is activated, the rod 10a is protruded, and the suppression plate 11 at the tip of the rod 10a presses the lowest stick 1a backward. The stick 1b is moved in the longitudinal direction, and its tip side is separated from one end 5a of the chute 5, and at the same time, the top surface of the pressing plate 11 supports the tip of the next stick 1b to prevent it from descending.

As a result, the tip side of the stick 1a at the lowest stage hangs down as shown in FIG. 8, and a triangular gap S is formed between it and the stick 1b at the next stage.

In this state, the rear end side of the stick 1a is still pressed against the cassette bottom plate 4e by the sticks from the next stage onwards, so if the pressing force is weak, the stick 1a will overcome the pressing force due to its own weight and fall, but if it is strong, the stick 1a will fall. In some cases, it may not fall.

Therefore, in order to ensure that the stick 1a falls, the solenoid valve 1
8 to operate the pin cylinder 13, and the pin 17
After inserting the rod 1a into the gap S, the solenoid valve 17 is switched to operate the air cylinder 12 and the rod 12a is projected. Since the angle of inclination of this air cylinder 12 is greater than the angle of inclination of the stick 1, the rod 12. The pin 13a of the pin cylinder 13 lifts the rear end side of the stick 1b of the next stage due to the protrusion of the stick 1b of the next stage.
completely separate from the bottom stick 1a and let it fall. At this time, since the gap S into which the rod 12a is inserted has a considerable size, there is no need to adjust the height of the rod 12a.

Here, after switching the solenoid valve 17 to retract the rod 12a of the air cylinder 12, switch the solenoid valve 18 to retract the pin 13a of the pin cylinder 13, and connect the rear end side of the next stick 1b to the cassette bottom plate. 5 Next, switch the solenoid valve 16 to retract the rod 10a of the air cylinder 10, remove the support for the tip end of the next stick 1b by the upper part of the press plate 11, and drop it onto the chute 5. For example, the sticks from the next stage onwards are lowered one stage at a time, and the stick 1b moves to the lowest stage, and parts are subsequently supplied.

In this way, when the stacked sticks are replaced repeatedly and all the sticks are empty of parts, the last stick is ejected and the supply of parts ends.

FIGS. 12 and 13 are a plan view and a side sectional view showing another embodiment of the present invention in which a link mechanism is used in place of the pin cylinder 13 constituting the gap forming means.

In this embodiment, as in the previous embodiment, the air cylinder 22 is provided parallel to the stick 1 in the plan view shown in FIG. 12, and at an angle greater than the inclination angle of the stick 1 in the side sectional view shown in FIG. An L-shaped lever 25 is pivotally mounted on a movable plate 23 movable in the axial direction of the air cylinder by a shaft 24, and biased in the clockwise direction by a spring 26 to bend the bent portion 25a.
the rod 22. of the air cylinder 22. engage the tip of the

A stopper pin 27 is installed on the movable plate 23-H to restrict the rotatable range of the lever 25, and the movable plate 23 itself has its movement limit regulated by a stopper pin 28 provided on the fixed part, and is rotated by a spring 29. In the figure, it is biased to the left.

Now, the air cylinder 22 is in the state shown by the solid line in FIG.
When the rod 22a protrudes, the lever 25 rotates to the left against the biasing force of the spring 26, contacts the stopper pin 27, and enters the state shown by the imaginary line in the figure, causing one end of the lever 25 to enter the gap S described above. enter in.

When the rod 22a protrudes further after the lever 25 comes into contact with the stopper pin 27, the movable plate 23 moves to the right against the spring 2, and the lever 24 lifts the rear end side of the next stick 1b to the maximum. Free the lower stick 1a.

According to this embodiment, only one air cylinder is required to lift the rear end of the stick 1b in the next stage, so the pin cylinder and the solenoid valve to control it in the previous embodiment are no longer necessary, and can be supplied at low cost. can.

FIG. 18 is a side sectional view showing still another embodiment of the invention. Components that are the same as those in the first embodiment are given the same reference numerals and their explanations will be omitted.

In the figure, 30 is a rotation support arm, the lower end of which is rotatably supported on the upper part of the guide plate 4b of the carrier cassette 4, and the guide plate 4b and the other end of the rotation support arm are connected clockwise by a spring 31. The stop position is regulated by the locking pawl 32.

33 is an air cylinder fixed to the base 9, and the rotary support arm 30 is connected to the rotary support arm 30 via a link 34 rotatably supported on the base 9.
The rotation support arm can be rotated counterclockwise by pressing the pin 35 protruding from the support arm.

In the first embodiment, the guide plate 4 of the carrier cassette 4
b and the bottom plate 4e are not movable, but in this embodiment, among the operations of the first embodiment, the first
In the state shown in Fig. 9, the air cylinder 33 is energized by a solenoid valve (not shown), and the link 34 presses the pin 35, thereby rotating the rotation support arm 30 counterclockwise by a predetermined angle, and the stick 1a is rotated by a predetermined angle. The stick 1a is dropped by releasing the engagement with the rear end.

After a predetermined period of time has elapsed, the link 34 is separated from the pin 35 by releasing the bias from the air cylinder 33, so the rotation support arm 30 rotates clockwise by the same angle due to the bias force of the spring 31, returning to the initial position. After returning to the position, the separation means is returned to the initial position, and the rear end of the stick 1b of the next stage is engaged with the rotary support arm 30.

In addition, in the first embodiment described above, when the sensor 14 detects that there is no part, the lowest stick is pressed backward in the longitudinal direction by the gap forming means, and after the tip is unsupported, the first stick is removed by the first separation means. The empty stick in the lower row is separated from the carrier cassette, but in this embodiment, when the sensor 14 detects that there is no part, only the separating means is operated, and a pin 13a is inserted between the lowermost row and the next step.
When inserting the stick, the vibration of the stick caused by the collision between the stick and the pin 13a causes the electronic components stuck in the stick at the lowest stage to slide down onto the chute 5.

Note that after the sensor 14 detects the absence of parts again, the first
The operation is similar to that of the embodiment.

〔Effect of the invention〕

As described above, according to the present invention, the empty lowest stick is pushed backward to remove the support for the tip, and the tip of the next stick is supported to create a gap between both sticks. By using this gap to lift the rear end of the next stick and freeing the lowest stick, it is possible to smoothly discharge the lowest stick and supply the next stick. It can be done reliably.

In addition, unlike conventional similar devices, there is no need to insert the support member into the next stick when changing sticks, so there is no need to remove one of the rubber caps at both ends of the stick, and it is not necessary to remove the rubber caps at both ends of the stick. The risk of dissipation is halved and work efficiency can be improved.

Furthermore, it becomes possible to use the support member of the next-stage stick in common for all the sticks, and there is no need to adjust its height.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a side sectional view thereof, Fig. 3 is an explanatory diagram showing the relationship between the suppression plate and the stick, and Fig. 4 is a control system thereof. The block diagram shown in FIG. 5 is a time chart showing the operation timing of each part. Fig. 6 is a flowchart showing its operation, Figs. 7 to 11 are explanatory diagrams showing its different operating states, Fig. 12 is a plan view of main parts showing another embodiment of the present invention, and Fig. 13 is Similarly, FIG. 14 is a side view of the main part, FIG. 14 is a partially cutaway perspective view of an example of a stick, and FIGS. 15 to 17 are explanatory diagrams showing different operating states of the conventional stick supply device. FIG. 18 is a side sectional view showing still another embodiment of the present invention, and FIG. 19 is an explanatory view showing the same operating state. 1...Stick magazine 2...Electronic parts 3...
・Rubber cap 4...Carrier cassette 5・
...Chute 10.12.22.35...Air cylinder 11...
Pressing plate 13...Pin cylinder 14...
・Sensor 15...Control circuit 1 B, 1
7.18... Solenoid valve 23... Movable plate 25...
Lever 2B, 29... Spring 27.28
...Stopper pin 30...Rotation support arm 32...
Locking pawl 35... Link S... Gap out Genjin Jiki Stock Figure 4 Figure 5 Nanosa 14:; Air/Su/Da 10:; Hi-Leak 13'' Off Air/Renoda 12Z Figure 12 Figure 19■

Claims (1)

[Scope of Claims] 1. A plurality of stake magazines storing a large number of electronic components are stacked diagonally, the electronic components are taken out from the lowest stake magazine, and the empty stake magazine is moved rearward in the longitudinal direction. and remove the support on the front end side, and support the front end side of the next stage stake magazine to form a gap between both the above-mentioned stays, and use this gap to move the rear end side of the next stage stake magazine. Lift up and support the stack magazine in the lowest tier to free it and let it fall. Then, release the support from both ends of the next tier magazine and lower the stack magazines from the next tier one by one. A static magazine supply method characterized by: 2 Stack multiple stake magazines containing a large number of electronic components diagonally, take out the electronic components from the lowest stake magazine, and eject the empty stake magazine to the outside to load it into the next stage and subsequent stages. In a stake magazine supply device configured to lower the magazine one stage at a time, there is a detection means for detecting the presence or absence of electronic components in the lowest stage stake magazine, and a detection means for detecting the presence or absence of electronic components in the lowest stage magazine, and a detection means for detecting the presence or absence of electronic components in the lowermost stage magazine. The stick magazine is pushed backward in the longitudinal direction, the support on the tip side is released and it is allowed to fall due to its own weight, and the tip side of the next stage stick magazine is supported, and the tip side of both the above-mentioned stick magazines is pushed back. a gap forming means for forming a gap between the stack magazines; What is claimed is: 1. A station magazine supplying device, comprising a separating means for separating the station magazine from the station magazine.