JPH0214417Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a marking device that marks each fixed number of electronic components on a blind-shaped work such as a taped electronic component product.

(B) Prior Art Taped products are shipped after a certain number of taped parts, for example every 100 parts, are marked on the taped part.

Conventionally, parts were counted using an optical fiber sensor, etc., and a solenoid was activated every 100 parts to punch holes in the taped part and mark them, but the feeding of the workpiece and marking were not mechanically linked. Since punching was performed via electrical signals, miscounts were likely to occur due to surrounding noise or momentary power outages, and the marking was unreliable.

(c) Purpose The present invention was developed in view of the above circumstances, and the purpose is to provide a highly reliable marking device using pure mechanical counting and marking.

(D) Structure The present invention includes a ratchet wheel that is sequentially driven by each element of a workpiece, a marker pin fixed to the ratchet wheel, a cam integrated with the ratchet wheel, and a ratchet wheel that is attached to the outer peripheral surface of the cam or the top surface of the workpiece. It consists of a bell crank that abuts.

(E) Embodiment FIG. 1 is a perspective view of a marking device according to the present invention, in which 10 is a blind-shaped workpiece, 11 is a foot of an electronic component that is a blind element, 12 is a taping part, 1
3 is a mark hole drilled in the taping part 12; 110 is a motor; 111 is a belt; 12 is a friction roller that frictionally rotates on the surface of the taping part 12; 121 is an idler;
130 is a belt, 130 is a pulley, 131 is a shaft, 132 is a ratchet wheel, 140 is a block, 141 is a marker pin, and 142 is a groove wheel.

The workpiece 10 is moved by a belt 111 by a motor 110.
The paper is held between a friction roller 120 and an idler 121 which are driven by a friction roller 120 and an idler 121, and is transported in the direction of arrow A. On the other hand, the ratchet wheel 132 has 100 pawls, which are equal to the marking unit, at a pitch that corresponds to the taping interval of the legs 11 of the electronic component being taped, and the pawls are adjacent to each other so that the pinion meshes easily. It is arranged in a state where it is inserted between the legs 11.

Therefore, as the workpiece 10 is transferred in the direction of the arrow A, the feet 11 sequentially contact the claws and move the ratchet wheel 132.
is rotated in the direction of arrow B, and the marker pin 141 screwed into a block 140 fixed to the side surface of the ratchet wheel 132 thrusts its tip into the taping part 12 every time the ratchet wheel 132 rotates once. Grooving wheel 1
A mark hole 13 is made approximately in the center of the taping portion whose both edges are held by the tape 42.

On the other hand, the belt 122 rotates as the friction roller 120 rotates, and the friction roller 120 rotates around the workpiece 1.
For example, a urethane belt is hung loosely so as to slip between the belt and the pulley 130 while the belt is being transported.

FIG. 2 is an explanatory diagram of the marker pin start position determining mechanism, in which the belt 122 is connected to the ratchet wheel 132.
A pulley 130 (first
While the workpiece 10 is being transferred, the tip of the lower arm 162 of the bell crank 160 is sliding on the upper surface of the workpiece, and the upper arm 161 and ratchet wheel 1
A gap is maintained between the outer peripheral surface of the cam 150 coaxially supported with the cam 32.

When the transfer of the workpiece 10 is completed and the workpiece is no longer present, the lower arm 162 rotates downward about the fulcrum 163 to the position shown by the dotted line, and accordingly, the upper arm 16
1 also rotates downward and comes into contact with the outer peripheral surface of the cam 150.

Also, when the work is removed, the ratchet wheel 132 becomes free, so the belt 122, which had been slipping until now, rotates the pulley 130 (Fig.
Rotate in the direction of Accordingly, the cam 150 also rotates in the same direction, so that the upper arm 161 is inserted into the cam groove 151.
The tip of will drop down and stop the above rotation. At this time, the marker pin 141 is vertical and is disposed so that its tip faces straight down, so that when the next workpiece is inserted, it is possible to count from the first element.

(f) Effects The marking device according to the present invention operates purely mechanically, so it does not cause miscounts or mismarking due to noise or instantaneous power outages, so it performs highly reliable marking. It has the effect that it can.

Furthermore, since the position of the marker pin can be automatically set, it is possible to omit the trouble of setting the position each time a count is started, and an improvement in work efficiency can be expected.

[Detailed Description of the Invention] Fig. 1 is a perspective view of a marking device according to the invention, and Fig. 2 is an explanatory diagram of a marker pin position setting mechanism.

10...Work, 120...Friction roller, 13
2...Rawl wheel, 141...Marker pin, 142...
Groove wheel, 150...cam, 160...bell crank.

Claims (1)

[Scope of utility model registration request] A blind-shaped work placed horizontally is transferred by rotating a friction roller pressed against the taped part, and a ratchet wheel equipped with the same number of claws as the quantity to be weighed is placed so that the outer periphery is in contact with the top surface of the work. The interlocking elements of the workpiece being transferred are sequentially brought into contact with the pawls to rotate the ratchet wheel, and a marker pin fixed to the side surface of the ratchet wheel parallel to one of the pawls is used to rotate the ratchet wheel. The marking device is configured such that a mark hole is drilled in the taping part every rotation of the ratchet wheel, and the tip of the lower arm of the bell crank slides into contact with the upper surface of the workpiece, and the workpiece is When it disappears, the lower arm rotates downward,
As a result, the upper arm comes into contact with the outer peripheral surface of a cam that is pivotally supported integrally with the ratchet wheel, and the ratchet wheel and cam are separately driven and rotated, causing the tip of the upper arm to fall into the cam groove. A marking device characterized in that the rotation of the ratchet wheel is stopped so that the tip of the marker pin is located at the starting point of the workpiece to be transferred.