JPH0439209A - Method and device for feeding parts - Google Patents

Abstract

PURPOSE:To securely enable the separation and feed of parts regardless of the size of parts by contriving the device in such a way that when separating rollers have held a part between them, driving of the separating rollers and a transfer belt is stopped, and after a lapse of a prescribed time the separating rollers and the transfer belt are restarted. CONSTITUTION:Separating rollers 12 and a transfer belt 11 are driven by a motor 14 so as to be turned by a given angle, and at that time the rollers 12 hold a first part 25 that has freely fallen between them. A sensor 12a detects the condition at that time, and the rollers 12 and the belt 11 are stopped for a given time in such a state that the part 25 has been held between the rollers 12. Then, after a lapse of a prescribed time, the rollers 12 are turned again, and the part 25 is fed out and dropped on a slide rail 13, and at the same time next part 25' is held between the rollers 12. And again this state is detected by the sensor 12a, and the rollers 12 are stopped, and during the stop the fall of the part 25 on the rail 13 is already completed to reach the transfer belt 11. In the mean time, the next part 25' is bitten by the rollers 12 so as to be held between them.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a component supply method and device, and more particularly, a separation roller that separates components supplied from a component supply package, and The present invention relates to a component supply method and device including a slide rail for sliding components and passing them onto a conveyor belt.

[Prior Art] Conventionally, in such a component supply device, various electronic components made into chips are supplied from a component supply package (also called a stick). These parts are separated by a separation roller, slide down the slide rail, and are delivered to a conveyor belt. In this case, in order to reliably separate the parts and transfer them to the conveyor belt, the conveyance speed of the conveyor belt is set higher than the rotational speed of the separation roller. As a result, the previous part is transported by the conveyor belt and supplied to a predetermined position faster than the next part is sent out by the separation roller.

[Problem to be Solved by the Invention] In such a conventional component feeding device, depending on the size of the component to be supplied, the next component may be sent out from the separation roller before the previous component finishes falling down the slide rail. There was a problem that it was supplied without being separated. This phenomenon will be explained using FIG. 4.

In FIG. 4, reference numeral 1 indicates a conveyor belt, and reference numeral 2 indicates a separation roller. A slide rail 3 is disposed between the conveyance belt 1 and separation roller 2. As shown in FIG. 4(A), the component 5 slides down the slope 6 due to free fall and is caught by the separation roller 2. Subsequently, the first part 5 is shown in FIG.
As shown in Fig. B), it is sent out to the separation roller 2, slides on the slide rail 3, and reaches the conveyor belt l. In this case, the next part 5° is falling about the middle of the slide rail 3. Here, as shown in Fig. 4(C), the first
The part 5 may not ride smoothly on the conveyor belt 1, and while it is bouncing and sluggish, the next part 5
This causes the parts to stick together, causing a total of 1 phenomenon.

Furthermore, as shown in Figure 4 (D), if the supplied parts are extremely small, the parts will fall one after another due to their own weight and will not separate from each other. do.

Therefore, the present invention has been made to solve these problems, and an object of the present invention is to provide a parts supply device that can reliably separate and supply parts regardless of the size of the parts.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has a separation roller that separates the parts supplied from the parts supply package and a separation roller that slides the separated parts onto a conveyor belt. In a component supply method that includes a slide rail for passing, the separation roller and the conveyance belt are driven to sandwich the component supplied from the component supply package between the separation rollers, and when the separation roller has sandwiched the component, the separation roller and the conveyance belt Then, by rotating the separation roller and conveyor belt again, the parts that had been sandwiched by the separation roller fall onto the slide rail, and the separation row pinches the next part, and the separation roller pinches the next part. At this time, the separation roller and conveyor belt are stopped again, and this operation is continued to feed the parts one by one.

Further, in the present invention, in a component supply device including a separation roller that separates components supplied from a component supply package, and a slide rail that slides the components separated by the separation roller and transfers them to a conveyance belt, the separation roller and the conveyance belt are provided. and a means for detecting a state in which the separating rollers are pinching the parts supplied from the parts supply package, and stopping the driving of the separating rollers and the conveyor belt when the separating rollers have pinched the parts. However, a configuration is also adopted in which the separation roller and conveyance belt are driven again after a predetermined period of time has elapsed.

[Operation] In such a configuration, first, the parts are supplied from the parts supply package to the separation roller. At this time, the separation roller and the conveyor belt are driven simultaneously, and the parts are held between the separation rollers. When the separation rollers pinch the parts, the separation rollers and the conveyor belt are stopped. Subsequently, after a predetermined period of time has elapsed, the separation roller and the conveyor belt are rotated again, and as a result, the parts held by the separation roller fall onto the slide rail, and the separation roller begins to hold the next part.
When the separation roller has nipped the next component, the separation roller and the conveyor belt are stopped again. By continuing this operation, parts are sequentially supplied.

In such a configuration, the interval between driving and stopping the separation roller and the conveyor belt can be adjusted depending on the parts to be fed, from the time one component is fed until the next component is placed on the conveyor belt. It is possible.

[Example] The present invention will be described in detail below according to embodiments shown in the drawings.

FIG. 1 shows a parts supply device according to an embodiment of the present invention. 6 In the figure, what is indicated by the reference numeral 10 is a parts supply package, and the parts supplied from this parts supply package 10 are transported by their own weight. It slides down the slope and is supplied to the separation roller 12. The parts that have passed the separation roller 12 slide down the slide rail 13 by free fall and are delivered to the conveyor belt 11. In this case, the separation roller 12
The conveyor belt 11 is driven by a motor 14. Second
As shown in the figure, the motor 14 is synchronously stopped or driven via a driver 20 by a control device 15 comprising a CPU 15a and a memory 15b.

Further, a sensor 12a is arranged near the separation roller 12 to detect when the separation roller 12 bites and holds a component. This sensor 12a is a mechanical or photoelectric detection sensor, and the separation roller 12 is inputted in a predetermined manner, thereby controlling the drive of the motor 14.

The components supplied from the conveyor belt 11 reach the component supply section 16, are detected by a component detection sensor 17 disposed there, are sucked by a component suction head (not shown), and are moved to a predetermined location.

Next, the operation of the device configured as described above will be explained.

As shown in FIG. 3(A), the separation roller 12 and the conveyor belt 11 are driven by the motor 14 to rotate at a certain angle, and at this time the separation roller 12 clamps the first component 25 that has fallen freely. The sensor 12a detects the state at this time, and the separation roller 12 and the conveyor belt 11 stop for a certain period of time with the part 25 being bitten (FIG. 3(B)).

After a predetermined period of time has elapsed, the separation roller 12 rotates again, and the component 25 is sent out and falls onto the slide rail 13. At the same time, the next part 25' is held between the separation rollers 12. This state is illustrated in FIG. 3(C).

Since this state is detected again by the sensor 12, the separation roller 12 stops, and while the separation roller 12 is stopped, the component 25 finishes falling on the slide rail 13 and reaches the conveyor belt 11. During this time, the next part 25' is caught and held by the separation roller 12 (FIG. 3(D)).

As shown in FIG. 3(E), when the separating roller 12 and the conveyor belt 11 start rotating again, the parts 25 are removed from the conveyor belt 1.
The next part 25° is sent out by the separation roller 12, falls on the slide rail 13, and the third part is held by the separation roller 12. By sequentially repeating this operation, it becomes possible to reliably separate the components supplied from the component supply package and transfer them to the conveyor belt.

In this case, the rotation stop cycle of the separation roller 12 and the conveyor belt 11 can be arbitrarily set to a value suitable for the size of the parts using a volume or the like, so that it can correspond to parts of various sizes. For this adjustment, component information may be stored in advance in the memory 15b, and the intermittent cycle may be automatically determined via the CPU 15a.

[Effects of the Invention] As is clear from the above description, according to the present invention, when the separation rollers sandwich a component, the separation rollers and the conveyance belt are stopped, and after a predetermined period of time, the separation rollers and the conveyance belt are restarted. It is now possible to configure the device to be driven, and parts can be reliably separated and supplied. Since the parts are separated one by one in this manner, there is no possibility of a suction error occurring when the parts are suctioned and lifted in the supply section.

[Brief explanation of drawings]

Fig. 1 is a side view showing the configuration of the device of the present invention, Fig. 2 is a control block diagram for controlling the motor, and Figs. 3 (A) to (E).
Figure 1 is an explanatory diagram explaining the operation of the device, Figure 4 (A) -
(D) is an explanatory diagram illustrating the operation of the conventional device. 10--Parts supply package 11--Transport belt 12--Separation roller 13--Slide rail] 6--Parts supply section control 70-Rough 2nd E ★Mi*

Claims (1)

[Scope of Claims] 1) A parts supply method comprising a separation roller that separates parts supplied from a parts supply package, and a slide rail that slides the parts separated by the separation roller and transfers them to a conveyor belt, wherein the separation roller By driving the conveyor belt and the component supply package, the parts supplied from the component supply package are held between the separation rollers, and when the separation rollers pinch the parts, the separation rollers and the conveyance belt are stopped, and the separation rollers and the conveyance belt are rotated again. The part that was being held by the separating roller is dropped onto the slide rail, and the next part is then held by the separating roller, and when the separating roller has held the next part, the separating roller and conveyor belt are stopped again, and this operation is continued continuously. A parts supply method characterized by sequentially supplying parts by 2) A parts supply device equipped with a separation roller that separates parts supplied from a parts supply package, and a slide rail that slides the parts separated by the separation roller and transfers them to a conveyor belt, comprising: driving the separation roller and the conveyor belt; A means for controlling the stop and a means for detecting a state in which the separating rollers are sandwiching the parts supplied from the parts supply package are provided, and when the separating rollers have pinched the parts, the driving of the separating rollers and the conveyor belt is stopped, and the driving of the separating rollers and the conveyor belt is stopped, A parts supply device characterized in that the separation roller and the conveyor belt are driven again after a period of time has elapsed.