JPS6145062Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a photoelectric type parts handling device.

A photoelectric type parts feeding device, for example, has a photoconductive element for synchronizing signals and a plurality of photoconductive elements for discrimination (depending on the shape of the part, there may be only one photoconductive element) under the ball/track surface of the parts feeder. , the part is placed according to the shape of the part to be transported, and when the photoconductive element for synchronization signal is blocked, the direction of the part is determined based on the blocking/receiving status of the photoconductive element for discrimination, and if the part is not in the normal direction, it is rejected. The device works to return the parts into the ball, align them only in the correct direction, and feed them outside.

In other words, in this kind of photoelectric sorting device, when a component reaches a location where a photoconductive element for synchronization signal is arranged and this element is shielded from light, what is the shielding/light reception status of the other photoconductive element for discrimination? The direction is determined based on the presence of the object.

Therefore, for example, if parts are sent in a continuous pressed state, the photoconductive element for the synchronization signal will remain shielded from light and will no longer be used as a signal source for the synchronization signal. Conventionally, parts separation means such as using an air nozzle, creating a step, or pasting a Woolin cloth were used near the component direction discrimination section where a photoconductive element was arranged, and parts were sent to the discrimination section one by one. That's what I was doing.

The present invention uses a simpler method to separate parts that are sent in succession without using these parts separating means.
Similar to the one for one piece, the purpose is to accurately determine the direction and supply it in the correct direction.

The present invention will be explained below with reference to the drawings.

Figure 1 is a diagram showing the conventional photoconductive element arrangement;
The figure shows a case in which parts are continuously sent in the conventional example shown in FIG. 1, and FIG. 3 shows a case in which parts are continuously sent in the same manner as in the embodiment of the present invention.

In the drawing, 1 is a photoconductive element for synchronizing signals, 2
is a photoconductive element for discrimination in the case of this part shape, 10
is a part of the example, which has a thin plate shape and has a diagonally cut out part 10.
It has a. That is, in the embodiment, the parts are thin objects with a simple shape, and only one photoconductive element is required for synchronization and one for discrimination.If the part in the direction shown in FIG. For the components in the direction B, the photoconductive element 2 for discrimination is always in the light-shielded state at the timing when the photoconductive element 1 for synchronization signal is blocked, and the photoconductive element 2 for discrimination is always in the light-shielded state at the timing when the photoconductive element 1 for synchronization signal A is blocked. It can be clearly distinguished from those in the normal direction in which the light is being received.

However, with the above element arrangement, when parts are sent in succession as shown in Figure 2, the photoconductive element 1 for synchronizing signals is always in a light-shielded state and cannot be used as a signal source for synchronizing signals. function, and it is impossible to determine the orientation of the part.

Therefore, in the present invention, as shown in FIG. 3, under the condition that the continuous component 10β that precedes the component to be determined 10α is always in the normal direction, the original photoconductive element 1 for synchronizing signal is connected to the component to be determined. At the timing when the light is blocked by 10α, the preceding normal direction component 10
The photoconductive element 3 is arranged so as to be shielded from light by β.

That is, when parts are sent in succession, the light shielding signal of the photoconductive element 3 is used as the synchronizing signal of the discrimination element 2 output instead of the photoconductive element 1 output for the synchronization signal, and the discrimination at that time The direction of the component is determined by blocking or receiving light of the photoconductive element 2. In the example shown in FIG. 3, since the photoconductive element 2 for discrimination is in the light-shielding state at the timing of the light-shielding of the photoconductive element 3, the part to be discriminated 10α is discriminated as a part outside the normal direction, and the reject device 4 is activated. It is returned to the ball.

As mentioned above, in the present invention, when parts are sent in a continuous pressed state and a synchronizing signal cannot be obtained from the photoconductive element for the original synchronizing signal, the timing of the synchronizing signal is transmitted in the preceding normal direction. A photoconductive element is placed so that light is blocked by a component, and the output from this photoconductive element is used as a synchronizing signal.
Compared to the conventional system, which has a component separating device near the discrimination section and separates consecutive components one by one, this is an extremely simple configuration that only requires one new photoconductive element, and the sorting speed is very fast. It has the excellent feature of being able to operate more quickly than conventional methods using a separation device.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the conventional photoconductive element arrangement;
The figure shows a case where parts are sent successively in the conventional example, and FIG. 3 shows the arrangement of photoconductive elements in the present embodiment. 1... Photoconductive element for synchronizing signal, 2... Photoconductive element for discrimination, 3... Photoconductive element, 4... Reject device.

Claims (1)

[Scope of utility model registration request] It is a thin plate rectangular component with a notch in one corner, and consists of a photoconductive element for discrimination placed corresponding to the notch and a photoconductive element for synchronization signal to detect the arrival of the component. In a component sorting device using a photoelectric method, the component orientation is determined based on whether light is received by a component notch of a discriminating photoconductive element when light is shielded from the element, or light is shielded by the other corner, and components that are out of the normal direction are ejected. When the parts are conveyed in a continuous pressed state, at the timing when the photoconductive element for synchronization signal is blocked by the part to be determined, the light is blocked by the notch of the normal direction part that continues and precedes the part to be determined, A photoelectric component sorting device comprising a photoconductive element configured to output a synchronizing signal in place of the synchronizing signal photoconductive element.