JP2889015B2 - Gold bullion stamping equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bullion stamping apparatus,
In particular, the present invention relates to an apparatus for automatically stamping a melter's mark, purity, weight, and serial number on a small metal bar of 100 g or 200 g.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
In order to imprint a melter's mark 2, a purity of 3, a weight of 4, and a serial number 5 on a small metal bar 1 of 0 g, a stamp body for embossing a melter's mark 2, a purity of 3, and a weight of 4 together is used. Since the size and the size of the numbering for stamping the serial number 5 are larger than the bar 1 and cannot be stamped at the same time, they are stamped separately.

[0003]

However, in the above embossing method, embossing is performed in two steps, and the time is doubled, resulting in poor productivity. Also, to move the bar 1 manually,
Scratch, oil, etc. may be formed and the commercial value may be reduced.

Accordingly, the present invention provides a method of automatically moving a small metal bar and imprinting a melter's mark, purity and weight on one of the two metal bars, and a serial number on the other. An object of the present invention is to provide a metal bullion stamping apparatus which is sequentially performed to improve the productivity of the metal bullion bar and prevent the commercial value from being reduced.

[0005]

According to the present invention, there is provided a metal stamping apparatus for stamping a serial number, a stamper body for stamping together a melter's mark, purity, and weight. And a vertically movable stamping machine that holds both sides of the stamping machine downwardly, and a bar at the receiving position in the direction perpendicular to the stamping position below the numbering of this stamping machine, and the bar is transferred to the stamping position below the numbering. A receiving air cylinder having a receiving table at the end thereof, and a receiving table for transferring a metal bullion bar stamped at a stamping position below the stamping body of the stamping machine to a take-out position perpendicularly rearward of the stamping position. And a transfer air cylinder having a pressing tool on a side for transferring a metal bullion bar stamped at a stamping position below the numbering to a stamping position below the stamping body. Air cylinder and front Air provided with a positioning jig at the end located on the passage for the metal bar between the embossing position below the numbering and the embossing position below the engraving body, and positioning the metal bars on the left and right sides of the bar. And a cylinder.

[0006]

The operation of the metal bullion stamping apparatus of the present invention constructed as described above will be described.
Alternatively, when a small bar of 200 g is placed on the receiving table previously positioned at the receiving position, the receiving air cylinder is operated, and the receiving table on which the gold bar is placed is located below the numbering of the stamping machine. It is transferred to the stamping position. At the start of the operation, there is no metal bar at the stamping position below the stamping body of the stamping machine, so the metal bar transferred to the stamping position below the numbering continues to pass by the pressing tool by the operation of the transfer air cylinder Transported through the platform and placed on a receiving platform positioned at the stamping position below the stamp body. Then, the receiving air cylinder is operated, and the receiving table at the tip thereof returns to the receiving position, and waits for the next gold bar. When the next metal bar is placed on the receiving table, the receiving air cylinder is operated and transferred to the stamping position below the numbering. When the two metal bars are positioned in the stamping machine in this way, the positioning jig advances between the two metal bars by the operation of the air cylinder, and the two metal bars are moved by the positioning jig. The bar is positioned and fixed on the receiving table. Then, the stamping machine descends, and a serial number is stamped on one of the gold bars by numbering, and a melter's mark, purity, and weight are stamped on the other gold bar by the stamp body. After the stamping, the stamping machine is raised, the positioning jig is retracted by the operation of the air cylinder, and the metal bar below the stamping body is sent to the take-out position while being placed on the receiving table by the operation of the take-out air cylinder. This bar is for getting started
Since the serial number is not stamped, it is put into a dummy box after removal. When the receiving table at the tip of the take-out air cylinder returns to the stamping position below the stamping body, the metal bullion bar stamped with the serial number by numbering is pressed by the pressing tool by the operation of the transfer air cylinder. Sent and posted. When the pressing tool returns to the original position, the receiving table at the stamping position below the numbering is moved to the receiving position by the operation of the receiving air cylinder, and waits for the next metal bar to be carried. Thereafter, the above steps are repeated, and the production number, the melter's mark, the purity, and the weight are automatically stamped on the bullion bar, taken out at the take-out position, and arranged on a pallet.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a metal bullion stamping apparatus according to the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 10 denotes a vertically movable stamping machine, and a serial number as shown in FIG. The numbering 12 to be stamped and the marking body 13 to stamp the melter's mark, purity, and weight are held downward. At the stamping position B below the numbering 12 of the stamping machine 10, there is provided a receiving stand 14 on which the metal bar 1 is mounted. The receiving stand 14 is located at a right angle to the stamping position B as shown in FIGS. At the receiving position A, the bar is mounted on the tip of a receiving air cylinder 16 disposed and fixed on the base 15 at a right angle rearward of the stamping position B in order to transfer the metal bar to the stamping position B. It slides on the table 15. At the stamping position C below the stamping body 13 of the stamping machine 10 shown in FIG.
As shown in FIG. 2 and FIG. A take-out air cylinder 18 arranged and fixed on the base 15 at a right angle to the front.
And slides on the base 15. On the outer side of the stamping position B, there is provided a pressing tool 19 for transferring the metal bar 1 stamped by the numbering 12 to the stamping position C by an air cylinder. Transfer air cylinder 20 provided
It is fixed and mounted on. Between the embossing position B and the embossing position C, a platform 21 for passing the metal bar 1 is provided, and the metal bars on the receiving platforms 14 and 17 located on the left and right sides of the platform 21 are provided. A positioning jig 22 for positioning the gold bar 1 is inserted into and out of the base 1.
5 is attached to the tip of an air cylinder 23 fixed on the top. In this example, the positioning jig 22 pivotally supports two links 24 in an X-shape, attaches rollers 25 to both ends of each link 24, and places a spring 26 between the widthwise ends of the X-shaped link 24. Although provided, it is not limited to this. Reference numeral 27 denotes a stopper which locks the metal bar 1 on the stamping position C when the metal bar 1 on the left and right sides is positioned by the positioning jig 22. The metal bar 1 at the stamping position B is locked by the pressing tool 19.

The operation of the metal ingot stamping apparatus according to the embodiment constructed as described above will be described. A metal bar that has passed the calibration, in this example, a 100 g metal bar 1, is received by the receiving bar shown in FIGS. When the receiver 14 is placed on the receiving table 14 previously positioned as a chain line at the position A, the receiving air cylinder 16 is operated, and the receiving table 14 on which the metal bar 1 is mounted slides on the base 15. It is transferred to the stamping position B below the numbering 12 of the stamping machine 10. At the start of the work, there is no gold bar 1 at the stamping position C below the stamping body 13 of the stamping machine 10, and the metal bar 1 transferred to the stamping position B is continuously pressed by the transfer air cylinder 20. At 19, it is transported through the passing table 21 and is placed on the receiving table 17 located at the stamping position C below the stamping body 13. Then, the receiving air cylinder 16 is operated, and the receiving table 14 at the tip thereof returns to the receiving position A, and waits for the next bar 1. When the next metal bar 1 is placed on the receiving table 14, the receiving air cylinder 16 operates and is transferred to the stamping position B. In this way, the stamping machine 10 shown in FIG.
When the two metal bars 1 are positioned, the positioning jig 22 advances between the two metal bars 1 by the operation of the air cylinder 23, and the X-shaped link 24 of the positioning jig 22 is moved laterally. The two metal bars 1 are locked by stoppers 27 on the receiving tables 14 and 17 and positioned and fixed by the rollers 25 at both ends of the link 24.
Then, the stamping machine 10 descends, and the serial number 5 shown in FIG.
The other metal bar 1 is stamped with the melter's mark 2, purity 3 and weight 4 shown in FIG. After the stamping, the stamping machine 10 is raised, the positioning jig 22 shown in FIGS. 2 and 4 is retracted by the operation of the air cylinder 23, and the metal bar 1 below the stamping body 13 is removed by the air cylinder 1.
By the operation of 8, the sheet is sent to the unloading position D while being placed on the receiving table 17. Since the production bar is not stamped with the production number at the beginning of the operation, the bar 1 is taken out and put into a dummy box (not shown). When the receiving table 17 at the tip of the take-out air cylinder 18 returns to the stamping position C, the metal bar 1 stamped with the serial number by the numbering 12 is pressed thereon by the operation of the transfer air cylinder 20. It is sent at and listed. When the pressing tool 19 returns to the original position, the receiving table 14 at the stamping position B is moved to the receiving position A by the operation of the receiving air cylinder 16.
And waits for the next bullion bar 1 to be carried.
Thereafter, the above steps are repeated, and the production number, metal mark, purity, and weight are automatically stamped on the metal bar 1 at a time, are taken out at the take-out position D, and are arranged on a pallet (not shown).

[0009]

As described above, according to the metal bullion stamping apparatus of the present invention, a small metal bar of 100 g or 200 g is automatically moved, and a melter's mark, Since it is possible to sequentially stamp the purity and the weight and the production number simultaneously on the other side, the stamping efficiency is improved and the productivity of the metal bar is improved. In addition, since the embossing is performed completely automatically without manual operation, the metal bar is not scratched or oiled, and the commercial value is not reduced.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a metal ingot stamping apparatus of the present invention.

FIG. 2 is a schematic plan view taken along line AA of FIG.

FIG. 3 is a perspective view of a principal part of a stamping machine in the metal bullion stamping apparatus of the present invention.

FIG. 4 is a perspective view showing details of FIG. 2;

FIG. 5 is a plan view showing a small metal bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gold bullion bar 2 Melter's mark 3 Purity 4 Weight 5 Serial number 10 Engraving machine 12 Numbering 13 Engraving body 14 Receiving stand 17 Receiving stand 16 Receiving air cylinder 18 Extracting air cylinder 19 Pressing tool 20 Transfer air cylinder 21 Passing Table 22 Positioning jig 23 Air cylinder A Receiving position of gold bullion bar B Stamping position below numbering C Stamping position below marking body D Removal position of gold bullion bar

Claims (1)

(57) [Claims] 1. A vertically movable stamping machine which holds a numbering for stamping a serial number and a stamping body for stamping together a melter's mark, purity, and weight downward on both left and right sides.
A receiving air cylinder having at its tip a receiving table on which a gold bullion bar is placed at a receiving position in the direction perpendicular to the stamping position below the numbering of the stamping machine and transferred to the stamping position below the numbering; A take-out air cylinder having a receiving table at its tip for transferring a metal bar stamped at the stamping position below the stamping body to a take-out position perpendicular to the stamping position, and a stamping position below the numbering. A transfer air cylinder parallel to the stamping machine having a pressing tool on a side for transferring the stamped gold bar to a stamping position below the stamping body;
A positioning jig for positioning the gold bars on the right and left sides of the metal bar is provided at the leading end of the metal bar passing between the embossing position below the numbering and the embossing position below the engraving body. Metal bullion stamping device consisting of air cylinder.