JPH033586B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method for marking a shaft-like component with leads extending in both directions from a component body, for displaying a model name, polarity, etc.

Background Art Electronic components such as diodes display the model name, polarity, class, lot number, etc. on their outer surface, but for small and cylindrical parts, it is necessary to display them in the circumferential direction to make the display clearer. ing.

For example, the diode shown in FIG.
It has a structure in which leads 2, 2 are led out in both directions, and a polarity display band 3, grade 4, etc. is displayed on the outer peripheral surface of the component body 1 based on the results of a polarity check and a characteristic check.

Fig. 2 shows an example of a marking device for shaft-shaped parts, in which 5 is a rotating drum, and recesses 6 are provided on the circumferential surface of the drum to house the parts bodies 1 of the shaft-shaped parts at regular intervals in the rotational direction. Transport parts while holding them. Reference numeral 7 denotes a transfer roller that contacts the component body 1 of the shaft-like component on the rotating drum 5 at a fixed position, and 8 is a stamp roller having a stamp plate 9 attached to its circumferential surface, and the stamp plate surface contacts the circumferential surface of the transfer roller 7. It is arranged like this. rotating drum 6,
The transfer roller 7 and the printing plate roller 8 rotate in conjunction with each other. Although not shown, the rotary drum 6 is provided with a supply section for supplying shaft-like parts whose polarities are aligned in the same direction, a discharge section for discharging the shaft-like parts with stamps, etc., and the stamp roller 9 is provided with an ink supply section. Rollers etc. are arranged.

It was necessary to supply this device with shaft-shaped parts whose polarities were aligned in the same direction.

This is because if the polarity is checked on the rotating drum 5 and the polarity is reversed before reaching the transfer roller 7, the structure becomes complicated and the transfer speed decreases. It is also possible to exclude those of opposite polarity from the rotating drum 5, but this is not preferable since it causes tooth loss, which results in the same result as reducing the transfer speed.

Furthermore, since the printing plate is used continuously, its lifespan is short and replacement is complicated.

DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above problems.
To provide a method for marking a shaft-shaped component, which can easily stamp a polarity display, a display such as a grade, etc., without requiring reversing the shaft-shaped component after a polarity check, and can extend the life of a stamping plate.

The present invention selectively moves the shaft-like component in the axial direction according to its polarity while transporting the shaft-like component in a direction substantially perpendicular to the axial direction thereof, and the shaft-like component selectively moves. The present invention is characterized in that a marking means having a display portion point-symmetrical with respect to the polar band is brought into contact with the shaft-like component at a position to simultaneously stamp the polar band, grade, etc.

Here, the means for moving the shaft-like component in its axial direction moves within a range where one end of the shaft-like component overlaps the polar band arranged at the center of the marking means.

The present invention has the following effects with the above configuration.

(1) There is no need to invert the parts to align the polar directions of the shaft-shaped parts, and the transfer speed can be increased.

(2) Since the moving means only needs to push the shaft-shaped part in a direction perpendicular to the transport direction, that is, in the axial direction of the part, the structure is simple and high-speed operation is possible.

(3) Since the printing plates are used in different locations, their lifespan is long and the replacement cycle is long.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a specific apparatus for carrying out the present invention will be explained by applying it to the apparatus shown in FIG. 2 and referring to FIGS. 3 to 5.

In the figure, reference numeral 10 denotes a rotating drum having a recess 11 for housing the component body 1 of the shaft-shaped component A and magnets 12, 12 for attracting and holding the leads 2, 2 at regular intervals in the horizontal direction. It constitutes a transfer means for transferring the shaped part A. 13 is a transfer roller that contacts the outer peripheral surface of the component body 1 of the shaft-shaped component A at a fixed position on the rotating drum 10; 14 is a stamp roller having a stamp 15 attached to its circumferential surface; although not shown, an ink kneading roller;
The transfer roller 13 is connected to the ink supply roller and together constitutes a stamping means. Recess 1 of rotating drum 10
1 is approximately twice the length of the component main body 1, in which the component A is pushed to one side by a guide 16 disposed between a component supply section (not shown) and a stamping section. 1
Reference numeral 7 constitutes a moving means, which is a solenoid that selectively pushes the shaft-shaped part A pushed by the guide 16 in the opposite direction.

Further, as shown in FIG. 5, for example, the stamp plate 15 has a band 18 for indicating polarity at the center, and indications 19 and 20 indicating grades at points symmetrical positions on both sides of the band 18.

This operation will be explained below. First, the shaft-like parts A are sequentially supplied from a parts supply section (not shown) to the rotating drum 10, and with the main part 1 housed in the recess 11, the lead 2 is attracted by the magnet 12 and transferred. The part A to be transferred is pushed to one end of the recess 11 by the guide 16. Then, the solenoid 17 is selectively activated based on the process before the parts supply section or the result of the polarity check on the rotating drum 10, and only the parts A of the opposite polarity are moved in the axial direction of the recess 11.

The transfer roller 13 has a stamp 15 of the stamp roller 14.
The display section 1 is symmetrical with respect to the polar band 18 of
9 and 20 are formed, solenoid 17
If solenoid 1 does not operate, display 19 indicates that solenoid 1
7 is activated, the display 20 is transferred respectively.

Therefore, both positive and reverse polarity parts can be displayed correctly.

With this device, there is no need to perform a reversal operation on parts of opposite polarity, and by simply pushing in the axial direction, the polarity band and grade can be displayed at the same time using the marking means that has a display section that is point symmetrical about the polarity band. It can be stamped, has a simple structure, can operate at high speed, and can increase the transport speed of parts.

In addition, since the stamps are used in a distributed manner, their lifespan is extended and the time and effort required to replace the stamps is reduced.

Note that the apparatus for carrying out the present invention is not limited to the above-mentioned embodiments, and for example, a chain conveyor can be used as the transfer means in addition to a rotating drum.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a shaft-shaped component, Fig. 2 is a perspective view of a conventional marking device, Fig. 3 is a perspective view of a marking device to which the present invention is applied, and Fig. 4 is Fig. 3 X
5 is a plan view showing an example of a printing plate used in the apparatus shown in FIG. 3. A... Shaft-shaped part, 1... Part body, 2, 2...
Lead, 10...Transfer means, 13...Transfer roller, 14...Print roller, 15...Print plate, 17...
…transportation.

Claims (1)

[Claims] 1. While transporting the shaft-like component in a direction substantially perpendicular to its axial direction, the shaft-like component is selectively moved in the axial direction according to its polarity, and the shaft-like component is moved to a position corresponding to the shaft-like component to be selectively moved. 1. A method for marking a shaft-shaped component, characterized in that a marking means having a display part point-symmetrical about the polar band is brought into contact with the shaft-shaped component to simultaneously stamp the polar band, grade, etc.