JP2519802B2 - Automatic stamping machine - Google Patents

Description

DETAILED DESCRIPTION [Overview] An automatic marking machine using direct marking, in which a marking mechanism portion disposed on one side of a carrier that conveys an object to be stamped and a position corresponding to the marking mechanism portion through the carrier are described. The automatic stamping machine composed of the ink supply mechanism arranged on the XY table is reciprocated to a predetermined position after the marking mechanism section fixed on the XY table crosses the carrier at right angles. A marking head that can move and a moving unit that allows the marking head to move in the vertical direction, and the ink supply mechanism section can move up and down at least at the predetermined position and can supply ink to the marking head. Achieve with a roller.

[Industrial applications]

The present invention relates to a marking machine for marking a surface of a semiconductor device or the like with a model name, a company mark, etc., and more particularly to an automatic marking machine for improving maintainability and workability and improving productivity by simplifying an operating mechanism.

[Conventional technology]

FIG. 2 is a principle diagram showing a structural example of a main part of a conventional automatic marking machine.

In the figure, the wall surface 1 facing one side of the housing 1 showing the chain double-dashed line
At predetermined positions of a and 1b, a shaft 2 which can rotate with both wall surfaces as end bearings and a shaft 10 fixed on both wall surfaces are mounted in parallel.

At a predetermined position of the inner shaft 2, a block up / down cam 3 having a circular cam groove 3a eccentric to the shaft 2 and a circular cam groove 4a eccentric to the groove 3a in different directions are provided. A cam 4 for moving the inking roller and an electromagnetic clutch plate 5 are fixed with their central axes aligned with each other, and a gear that can freely rotate with respect to the shaft 2 at a position close to the electromagnetic clutch plate 5. 6 is mounted, and in particular, the gear 6 is integrated with a pulley 7 that can freely rotate coaxially, and is connected to a motor pulley (not shown) by a belt 8.

A stop plate 9 provided near the surface of the electromagnetic clutch plate 5 opposite to the gear 6 is fixed to the housing 1, and the electromagnetic clutch plate 5 is driven by a signal from a control unit (not shown). It is adapted to be fixed by suction to either the stop plate 9 or the gear 6.

Therefore, when a motor (not shown) is operated with the electromagnetic plate clutch plate attracted to the stop plate 9, the shaft 2, that is, the block up / down cam 3, the inking roller moving cam 4 and the electromagnetic clutch plate 5 do not rotate and move up and down. Only the gear 6 is the pulley 7
While rotating with the electromagnetic clutch plate 5, the electromagnetic clutch plate 5 is rotated to the gear 6
When it is attracted and fixed to the electromagnetic clutch plate 5
The rotation of the shaft 2 is induced via the above, and as a result, the block up / down cam 3 and the meat roller moving cam 4 fixed to the shaft 2 rotate.

On the other hand, at a predetermined position of the shaft 10, a gate-shaped infeed roller arm 11 is attached so as to be rotatable about the shaft 10.

At the tips of both legs of the meat roller 13
12 is rotatably provided, and a pin 11b having a thickness that smoothly slides in the cam groove 4a of the inking roller moving cam 4 is provided at the tip of the arm 11a branched from the middle of one leg. It is fixed so as to fit into the cam groove 4a.

This means that the rotation of the cam 4 for moving the inking roller causes the inking roller arm 11 to move the shaft 10 as shown by the arrow a.
It means rotating around.

Further, the ink roller 14 integrated with the gear 13 that meshes with the gear 6 is such that the meat roller 12 provided at the tip of the meat roller arm 11 when the meat roller arm 11 moves to the maximum in the direction a _{1 in the} figure. It is arranged so as to come into line contact with the surface of the ink roller 14.

Reference numeral 15 in the drawing denotes an ink supply table, and 16 provided between the ink supply table 15 and the contact position of the inking roller 12 is an ink roller.

On the other hand, 17 in the figure is the cam groove 3a of the above-mentioned block up / down cam 3
Is a block that moves up and down integrally with an arm 17b having a pin 17a fitted to
Reference numeral 17c is a typeface mounting surface on which the required typefaces and patterns are embedded.

Especially, the vertical position of the block 17 is
When the inking roller arm 11 is rotationally moved in the state of being located at the uppermost point, the inking roller 12 rolls while contacting the type mounting surface 17c of the block 17.

Reference numeral 18 in the drawing denotes a carrier arranged corresponding to the block 17, reference numeral 19 denotes a mounting table of a predetermined semiconductor device 20, and when the block 17 is located at the lowermost position, the type mounting surface 17c of the block 17 is a semiconductor device. It is configured to contact the upper surface of 20.

 The marking work will be described below in time series.

In the initial state, as shown in the figure, the inking roller arm 11 is at a position where the inking roller 12 is in contact with the ink roller 14,
The block 17 is in the highest position.

In this case, when the motor pulley (not shown) is rotated so that the belt 8 moves in the c direction with the electromagnetic clutch plate 5 attracted to the stop plate 9, the gear 6 remains fixed to the shaft 2 in the d direction. Further, the gear 13 and further the ink roller 14 rotate in the e direction and the inking roller 12 rotates in the f direction. At the same time, the ink bricking roller 16 also rotates in the g direction.

Therefore, when the marking ink 21 is supplied to the ink supply base 15,
The marking ink 21 adheres to the ink roller 14 and is then leveled by the ink bricking roller 16 to have a substantially uniform thickness.
To form a film and adhere to it.

Next, when the electromagnetic clutch plate 5 is attracted to the gear 6 by operating a control unit (not shown), the block up / down cam 3 and the feed roller moving cam 4 start to rotate. At this time, the feed roller 12 first blocks. The character mounting surface 17c of the block 17 rolls while contacting and the marking ink 21 adheres to the pattern surface 17c, and then the block 17 descends to a predetermined position. Roller moving cam 4
Since the cam groove 4a is formed, a required marking can be made on the surface of the semiconductor device 20 at a predetermined position on the carrier 18.

Hereinafter, the semiconductor device 20 is synchronized with the rotation speed of the shaft 2.
By arranging on the carrier 18, continuous marking work can be carried out.

In such an automatic marking machine, since the apparatus is compactly assembled, it can be easily moved and set.

[Problems to be Solved by the Invention]

In the conventional automatic stamping machine, the mechanism is complicated and there are many friction parts between metal and metal, so a lot of man-hours are required for maintenance of lubrication and maintenance of consumable parts, and when changing the stamping stroke, the device must be disassembled. Further, when the marking stroke is increased, there is a problem that the modification is difficult because the size of the cam is limited. In particular, when the marking stroke is incorporated into an automated system, the work such as confirmation of the remaining amount of ink and replenishment of ink are required. There was a problem that it was difficult to remove.

[Means for solving the problem]

The above problem is composed of a marking mechanism portion arranged on one side of a carrier that conveys an object to be stamped and an ink supply mechanism portion arranged at a position corresponding to the marking mechanism portion via the carrier. An automatic marking machine, wherein the marking mechanism section fixed on an XY table is capable of reciprocating to a predetermined position after crossing the carrier at a right angle,
The marking head is provided with a moving means capable of moving in the vertical direction, and the ink supply mechanism section is provided with a thickening roller capable of moving vertically to at least the predetermined position and capable of supplying ink to the marking head. Solved by a stamping machine.

[Work]

If the ink supply section and the marking mechanism section are separated and the marking operation of the marking mechanism section is performed by the electromagnetic cylinder, the overall configuration can be simplified.

According to the present invention, the ink supply unit is arranged on one side along the carrier, and the marking mechanism unit is arranged on the opposite side corresponding to the carrier, and all the marking mechanism units fixed to the XY stage are arranged. The operation is performed by a two-dimensional electromagnetic cylinder.

Therefore, the simplification of the operation mechanism facilitates maintenance and modification, and also facilitates operations such as confirmation of the remaining amount of ink and replenishment.

〔Example〕

1A and 1B are configuration diagrams illustrating an automatic marking machine according to the present invention, FIG. 1A is an overall perspective view, and FIG. 1B is a side view of the perspective view seen from the arrow direction.

2A and 2B, the semiconductor device 20 set on the mounting table 19 described in FIG. 2 is mounted on the carrier 18 with the marking surface facing upward.

Also, on one side along the longitudinal direction of the carrier 18, that is, on the front side of the carrier 18 in FIG.
22 and the ink supply mechanism 22 with the carrier 18 interposed therebetween.
At a position corresponding to, that is, in FIG.

The inner ink supply mechanism unit 22 includes an ink roller 24 that rotates in the direction r ₁ shown in the drawing by a belt 23 that is connected to a motor pulley (not shown), an ink supply table 25 that supplies ink to the ink roller 24, and the ink roller 24 that is normally provided. A liner roller 27, which is in line contact with the ink roller 24, is provided with a cylinder 26 so as to move upward from the ink roller 24 if necessary.
An ink-brick roller arranged in the intermediate portion between the ink roller 24 and the inking roller 27 so as to make line contact with the ink roller 24.
It consists of 28 and.

Reference numeral 29 in the figure denotes a housing in which each of these mechanical parts is arranged at a predetermined position.

In this case, r ₁ in FIG said ink roller 24 while in contact with the ink roller 24 as shown in FIG. (B) the inking roller 27
When the imprinting ink 21 similar to that shown in FIG. 2 is supplied to the ink supply table 25 by rotating the ink feeding table 25, the imprinting ink 21 adheres to the ink roller 24 and then rotates in the r ₂ direction.
It is made uniform in thickness by 28 and is further adhered as a film on the inking roller 27 which rotates in the r ₃ direction.

On the other hand, the marking mechanism unit 30 is an XY unit installed at the bottom near the floor.
It is arranged on the table 31, and is not shown with the upper and lower sides (A in the figure) as the moving direction on both sides of the fixed casing 32 of the XY table 31 in the direction along the carrier 18, for example. Cylinders 33 and 34 which are simultaneously operated by a signal from the control unit are fixed.

The figure shows a case where each of the cylinders 33 and 34 includes two cylinder pins 33a and 33b.

Further, at the tip of each cylinder pin 33a, 33b (33b is not shown in the figure), a cylinder 35 operated by a signal from a control unit similar to the above is provided in the transverse direction of the carrier 18 (B in the figure).
Is fixed so that the direction of movement is
The marking head 36 is attached to the tips of the two cylinder pins 35a, 35b.
Are mounted so that the type mounting surface 36a faces the lower side, that is, the surface of the carrier 18.

This means that the marking head 36 can move in a direction traversing the carrier 18 regardless of the position of the marking head 36 with respect to the carrier 18.

The marking work will be described below in time series as in the case of FIG.

The initial state of the ink supply mechanism section 22 is, as shown in FIG. 2B, the state where the ink 21 is attached to the inking roller 27 as described above, and the marking mechanism section 30 is instructed by a signal from a control section (not shown). The marking head 36 is arranged at a position where it crosses the carrier 18 and gets over the inking roller 27.

In this state, the cylinder of the ink supply mechanism unit 22 is operated to raise the deposition roller 27 as indicated by 27 'indicated by the broken line in the figure. In this case, the position of the deposition roller 27' is the position of the roller 27 '.
The upper surface of is set to be slightly higher than the upper surface of the semiconductor device 20 on the carrier 18.

Therefore, the cylinders 33, 34 of the marking mechanism section 30 are operated to adjust the height of the type mounting surface 36a of the marking head 36 to the roller 2
After making it substantially coincide with the upper surface of 7 ', the marking head 36 is returned to the B ₁ direction by the cylinder 35 and the character mounting surface 36
Ink 21 is attached to a.

Then, the cylinder 35 is used to move the marking head 36 to the carrier 18
The semiconductor device 20 is returned to the marking position on the upper side, and when the semiconductor device 20 is conveyed onto the carrier 18, the marking head 36 is cured by the cylinders 33 and 34 to apply the required marking to the semiconductor device 20. .

In the meantime, the inking roller 27 descends and returns to the state shown by the solid line in FIG. 7B, and the ink 21 is supplied from the ink roller 24 which is constantly rotating.

After that, the marking mechanism section 30 moves in the opposite direction and returns to the state of FIG.

By repeating the same operation thereafter, a plurality of semiconductor devices 20 conveyed on the carrier 18 can be continuously marked.

In this case, when the semiconductor device 20 and the marking head 36 are synchronized in time, for example, when the moving direction of the carrier 18 is C shown in the figure, the broken lines shown in the figure are installed on both sides of the upstream side of the carrier 18 sandwiched by the automatic marking machine. This can be realized by feeding back the signal from the photodetector 37 shown in 1) to the control unit (not shown).

In the automatic marking machine having such a configuration, the mechanical operation part as described in FIG. 2 is reduced, so that the maintenance is easy and the cylinder is replaced only when the marking stroke is changed or repaired. Easy to modify.

Furthermore, since all operations of the marking mechanism unit 30 can be controlled by the control unit, the worker can be positioned on the ink supply mechanism unit 22 side, and there is an advantage that the remaining amount of the ink 21 can be checked and the work of replenishment can be easily performed.

〔The invention's effect〕

As described above, according to the present invention, it is possible to provide an automatic marking machine in which the operation mechanism is simplified and the maintainability and workability are improved to improve the productivity.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining an automatic marking machine according to the present invention, and FIG. 2 is a principle diagram showing an example of a main part configuration of a conventional automatic marking machine. In the figure, 18 is a carrier, 19 is a mounting table, 20 is a semiconductor device, 21 is a marking ink, 22 is an ink supply mechanism, 23 is a belt, 24 is an ink roller, 25 is an ink supply table, 26, 33, 34, 35. Is a cylinder, 27, 27 'is a thickening roller, 28 is an ink roller, 29, 32 is a casing, 30 is a marking mechanism section, 31 is an XY table, 33a, 34a, 35a, 35b are cylinder pins, 36 Is a marking head, 36a is a type mounting surface, and 37 is a photodetector.

Claims (1)

(57) [Claims] 1. A marking mechanism portion disposed on one side of a carrier for conveying an object to be stamped, and an ink supply mechanism portion disposed at a position corresponding to the marking mechanism portion via the carrier. An automatic marking machine, wherein the marking mechanism section fixed on an XY table reciprocates to a predetermined position after crossing the carrier at a right angle, and the marking head moves in the vertical direction. An automatic marking machine, comprising: a movable moving unit, wherein the ink supply mechanism section includes a thickening roller capable of moving up and down to at least the predetermined position and capable of supplying ink to the marking head. .