JPS5939553A - Stamping method of cylindrical part - Google Patents

Abstract

PURPOSE:To facilitate reversing a cylindrical parts after checking the polarity and prolong the useful life of a stamp, by a method wherin a shaft form part selectively moved in the axial direction while being moved in a direction orthogonal to the axial direction and a stamping means provided with point-symmetrical indicating parts at positions corresponding to the cylindrical parts are brought into contact with each other. CONSTITUTION:While feeding a cylindrical parts A by a rotary drum 10, a solenoid 17 is operated selectively on the basis of the result of polarity checking. A transfer roller 13 is provided with the indicating parts 19, 20 which are point- symmetrical with reference to a polarity band 18 for a stamp impression plate 15 provided on a stamp impression plate roller 14. When the solenoid 17 is not operated, the indication 19 is transferred, and when the solenoid 17 is operated, the indication 20 is transferred.

Description

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

Background technology Electronic components such as diodes have a model name on their outer surface, which is out of the question1.
Grades, lot numbers, etc. are displayed, but for parts that are small and cylindrical, they are displayed in the circumferential direction to make the display clear.

For example, the diode shown in Fig. 1 has a structure in which leads 2.2 are led in both directions of the component body l, and a polarity indicating band 3, grade 4, etc. is placed on the outer peripheral surface of the component body l based on the results of polarity check and characteristic check. is displayed.

Fig. 2 shows an example of a marking device for shaft-shaped parts, which is a five-piece rotary drum, with four parts 6 on the circumferential surface for storing 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 mortar roller having a stamp plate 9 attached to its circumferential surface, the surface of which is the transfer roller 7.
is arranged so as to be in contact with the circumferential surface of the rotating drum 6,
The transfer roller 7 and the mortar roller 8 rotate in conjunction with each other.

Although not shown, a supply section for supplying shaft-like parts with TFI polarities aligned in the same direction and a discharge section for discharging shaft-like parts bearing stamps are arranged on the rotating drum 6, and an ink supply section is arranged on the stamp roller 9. Rollers etc. are arranged.

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

This can be done by checking the polarity on the rotating drum 5 and reversing the polarity before reaching the transfer roller 7.
This is due to the complexity of the structure and the reduction in transfer speed. 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 mortar could be used continuously, its lifespan was short and replacement was complicated.

DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems, and provides a method for marking a shaft-like component that facilitates the reversal of the shaft-like component after checking the polarity and extends the life of the mortar.

The present invention selectively moves the shaft-like component in the axial direction while transporting the shaft-like component in a direction substantially perpendicular to the axial direction, and points symmetrically at the position corresponding to the shaft-like component being selectively moved. The present invention is characterized in that a stamping means having a display portion is brought into contact with the shaft-like component to stamp.

Here, the means for moving the shaft-like component in the axial direction is moved within a range where one end of the shaft-like component overlaps the display center of the point-symmetric display section of the stamping 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 component in a direction perpendicular to the transport direction, that is, in the axial direction of the component, the structure is simple and high-speed operation is possible.

(3) Since the mortars are used in a distributed manner, their lifespan is long and the replacement cycle becomes long.

BEST MODE FOR CARRYING OUT THE INVENTION An implementation of a specific device for carrying out the invention! Example 2
The present invention will be explained with reference to FIGS. 3 to 5 as applied to the apparatus shown in FIG.

In the figure, reference numeral 10 denotes a rotating drum on which a concave portion 11 for housing the component body 1 of the shaft-shaped component A and magnets 12.12 for attracting and holding the lead 2.2 are provided at regular intervals in the circumferential direction. It constitutes a transfer means for transferring the shaft-shaped component A. 13
is the component body 1 of the shaft-shaped component A at a fixed position on the rotating drum 10.
The transfer roller 14 in contact with the outer peripheral surface is a mortar roller having a mortar 15 mounted on its peripheral surface, and although not shown, is connected to an ink kneading roller and an ink supply roller, and together with the transfer roller 13 constitutes a marking means. Concave portion 11Jj of rotating drum 1'O
It is approximately twice as long as the length of the component main body I, and the component A is pushed to one side by a guide 16 disposed between a component supply section (not shown) and a stamping section.

Reference numeral 17 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.

Furthermore, as shown in FIG. 5, for example, the mortar 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 the lead 2 is moved to the magnet 12 with the main part l stored in the four parts 11.
It is adsorbed and transferred. The part A to be transferred is pushed to one end of the recess 11 by the guide 16. Then, based on the result of checking the polarity in a step before the component supply section or on the rotating drum 10, the solenoid 17 is selectively activated to move only the component A of the opposite polarity in the axial direction of the recess 11.

Since the transfer roller 13 is formed with a display section 19.degree.20 that is symmetrical about the L point with respect to the polar band 18 of the mortar 15 of the mortar roller 14, the display 19 will be If solenoid 17 is activated, display 20
are transcribed respectively.

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

Since this device only needs to push the component in the axial direction instead of reversing the component, it has a simple structure, can operate at high speed, and can increase the transport speed of the component.

6- Also, since the mortars are used in a distributed manner, the lifespan is extended and the effort required to replace mortars is reduced.

It should be noted 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 instead of 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 The X-view and FIG. 5 are plan views showing an example of a mortar used in the device shown in FIG. 3. A... Shaft-shaped part, l ・Part body, 2.2...
Lead, 10 - Transfer means, 13 - Transfer roller, 14... Mortar roller, 15... Mortar, 17
· transportation. 7- Figure 1 Figure 2. 267

Claims (1)

[Claims] While the shaft-like component is being transferred in a direction substantially perpendicular to its axial direction, the shaft-like component is selectively moved in the axial direction, and a point-symmetric display section is placed at a position corresponding to the shaft-like component to be selectively moved. 1. A method for stamping a shaft-shaped component, characterized in that the stamping means is brought into contact with the shaft-shaped component to stamp the shaft-shaped component.