JPS6021224Y2 - Foil feeding mechanism of foil stamping machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a foil feeding device for a foil stamping machine, and more specifically, to a foil feeding device in which a foil feeding mechanism is provided with both steady feeding and intermittent batch feeding.

There are different types of foil stamping machines, such as up-down type, platen type, and rotating cylinder type, but regardless of the type, when foil stamping is performed with multiple plates installed vertically, after stamping once In this method, it was necessary to pull the foil pattern and the unstamped portion between the printing patterns all at once, and the unstamped portion was wound up as it was, which was very uneconomical.

This project was developed in view of the above-mentioned circumstances, and the foil feeding device is equipped with a constant feeding mechanism for stamping the unstamped portion between the foil plates and a batch feeding mechanism that operates intermittently to eliminate the defects. The aim is to eliminate the

Below is a detailed explanation of the foil feeding mechanism of the foil stamping machine related to this proposal.
The mechanism includes a cam clutch 2 and an electromagnetic clutch 3 arranged side by side on the axis IA of the foil feeding roll 1, sprockets 8 and 9 provided on the cam clutch and the electromagnetic clutch, respectively, and a chain 5 for steady flow and a chain for intermittent batch feeding. One end of each foil feed size adjustment lever 4 is pulled by a suitable means such as a spring, and the other end is attached to the foil feed dimension adjustment lever 4, which swings with one end as a fulcrum, by a suitable drive means so that the mounting position can be adjusted, and for steady feeding. The chain 5 is connected to the sprocket 7, and the intermittent batch feed chain 6 is connected to the sprocket 8, respectively, so that the electromagnetic clutch 3 is operated at an appropriate ratio to the number of swings of the lever 4. Features.

In the illustrated embodiment, the present invention includes a reciprocating type bed 11,
This is applied to a foil stamping machine consisting of a rotating cylinder 12 etc. Figure 1 is an explanatory diagram of the entire foil stamping machine, Figures 2 and 3 are diagrams of the proposed foil feeding mechanism, and Figure 4 is an illustration of the foil feeding mechanism. FIG. 5 is a diagram showing a steady feeding state, and FIG. 5 is a diagram showing a batch feeding state of foil.

Further, FIG. 6 is a wiring diagram of the electrical system of the foil feeding mechanism of the present invention.

In the figure, 1 is a foil feeding roll, which has an axis IA.
The foil feed roll 1 can be rotated by supporting A, and a knurling roll 14 is rotatably provided so as to be in parallel contact with the foil feed roll 1.

2 is a cam clutch, to which a sprocket 7 is attached, and is provided on the axis IA of the foil feed roll 1; when the sprocket 7 rotates in one direction (leftward in the drawing), this rotation is controlled via the cam clutch 2; The information is transmitted to the shaft IA, and the foil feed roll 1 rotates in the same direction, while the waist sprocket 7 rotates in the opposite direction (
When the cam clutch 2 rotates in a fixed position (in the figure), the cam clutch 2 idles and this rotation is not transmitted to the shaft IA.

3 is an electromagnetic clutch, which is installed in parallel with the cam clutch 2;
In the electromagnetic clutch 3 of this embodiment, the flange 3A is fixed to the axis IA of the foil feed roll 1, and the sprocket 8 is fixed to the other flange 3B, and the number of swings of the foil feed dimension adjustment lever 4 is fixed to the other flange 3B. The electromagnetic clutch 3 is configured to operate at an appropriate ratio.

When this electromagnetic clutch 3 is not operating, no matter which direction the sprocket 8 rotates, this rotation is not transmitted to the shaft IA, and when the electromagnetic clutch 3 is operating, the rotation of the sprocket 8 is transmitted to the shaft IA. transmitted to.

Reference numeral 4 denotes a foil feed dimension adjustment lever, which is swung around one end as a fulcrum by an appropriate driving means.

Reference numeral 5 denotes a steady feed chain, one end of which is tensioned by a suitable means such as a spring 9, and the other end of which is attached near the support of the foil feed dimension adjustment lever 4 so that its mounting position can be adjusted. Moreover, the hook on the sprocket 7 is a bridge.

6 is a chain for intermittent batch feeding, one end of which is connected to a spring 9.
The other end is attached to a location away from the fulcrum of the foil feed size adjustment lever 4 so that it can be mounted, and is hooked onto the sprocket 8 in a bridge.

In Figure 1, 10 is the machine base, 20 is the foil film, 13
14 is a foil winding roll, 14 is a knurling roll, 15 is a foil supply roll, 16 and 17 are printing plates, 18 is a trolley, 18A is a roller, and 21 is a supply paper or a packaging box.

In addition, in Fig. 2, 19 is the chain of the foil winding mechanism;
indicates a coil spring connected to the other end of the steady feed chain and intermittent batch feed chain.

The lever 4 in FIG. 2 is oscillated by being chained from the main drive unit (not shown) of the foil stamping machine.

The chains 5 and 6 are fixed to the lever 4 at different positions, but the one closer to the fulcrum has a shorter stroke, and therefore the foil feed width is smaller.

Further, in the figure, LS-1, L, and s2 each indicate a limit switch.

The cam clutch 2 shown in FIG. 3 functions to prevent the roll 1 from rotating in one direction, and the electromagnetic clutch 3 has a
A is fixed to the axis IA of the roll 1, and the other flange 3
Since the sprocket 8 is fixed to B, it is driven by the chain 6 for intermittent batch feeding when the electromagnetic clutch is activated.

In Figure 6, C is a preset counter, R1, R
2 indicates a relay, and REG indicates a rectifier.

When the counter C is now preset to a predetermined value and the foil stamping machine body is started, the lever 4 swings, and the limit switch LS-1 is turned on in accordance with the vibration to start counting the counter.

When the counter is oscillated a predetermined number of times, the preset switch PSW of the counter is turned on, activating the relay R1 and turning on the electromagnetic clutch 3.

Next, when lever 4 is raised and limit switch LS-2 is turned on, relay R2 is activated to reset the counter.

Next, the operation will be explained. First, when the electromagnetic clutch 3 is not activated and the lever 4 swings downward in FIG. The sprocket 7 is rotated counterclockwise in the drawing, and the rotation of the sprocket 7 is transmitted to the shaft IA via the cam clutch 2, and the foil feed roll 1 rotates in the same direction to steadily feed the foil film 20.

At this time, since the electromagnetic clutch 3 is not operating, the rotation of the sprocket 8 is not transmitted to the shaft IA.

Note that the amount of this steady feed can be adjusted by changing the attachment position of the chain 5 to the lever 4.

Next, when the lever 4 swings upward, the chain 6 is pulled by the springs 9, 9, and the sprocket 7°8 rotates at the correct position, but the cam clutch 2 and the electromagnetic clutch 3 idle and transfer this rotation to the axis IA. Not communicated to

When the electromagnetic clutch 3 is activated, when the lever 4 swings downward in FIG. 2, the chains 5 and 6 are pulled by the lever 4, and the sprockets 7 and 8 are respectively rotated to the left in the drawing. Since the sprocket 8 rotates more than the sprocket 7, the rotational force of the sprocket 8 is transmitted to the shaft IA via the electromagnetic clutch 3, and the foil feed roll 1 rotates in the same direction, so that the foil film 20 is rolled all at once. send to

At this time, the cam clutch 2 idles and functions to eliminate the difference in rotation between the sprockets 7 and 8.

Batch feeding is performed by oscillating the lever 4 several times to repeat steady feeding, and when all the foil between the plates has been used, the electromagnetic lever is activated. Can be adjusted by changing the mounting position.

Note that when the lever 4 returns upward, the electromagnetic clutch 3
is in the OFF state, the cam clutch 2 and the electromagnetic clutch 3 idle, and the rotation of the sprocket 7.8 is not transmitted to the shaft IA.

The configuration of the foil feeding mechanism of the foil stamping machine according to the present invention is as described above, and the following effects are produced from the configuration.

In this case, since the foil feeding roll 1 is coaxially equipped with a mechanism for constant feeding and batch intermittent feeding, one swing of the lever 4 (that is, one rotation of the cylinder 12 in the illustrated embodiment) When foil stamping with multiple stencils, by pressing the foil between the stencils with constant feed and pulling the foil stamped with these stencils block by block with batch intermittent feeding, the foil can be stamped continuously without wasting it. (See FIGS. 4 and 5, and 20a in the figure shows the de-foiling trace after foil stamping.

) In addition, in this case, the feed width of both steady feed and batch feed can be easily adjusted by moving the stopping point of the lever 4, and is excellent in terms of operability and maneuverability, and has a simple structure. Therefore, it can be easily installed on an existing foil stamping machine.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the present invention. Figure 1 is an explanatory diagram of the entire foil stamping machine, Figures 2 and 3 are explanatory diagrams of the foil feeding mechanism of the present invention, and Figure 4 (A) 9 shows the foil stamping machine. A diagram showing the steady feeding state of
Figure 5A9 shows a state in which foils are fed all at once, and Figure 6 is a wiring diagram of the electrical system. 1...Foil feeding roll, 1A...Same shaft, 2...Cam clutch, 3...Electromagnetic clutch, 4...Foil feeding Dimension adjustment lever, 5...
...Chain for steady feed, 6...Chain for intermittent batch feed, 7,8...Sprocket.

Claims (1)

[Scope of utility model registration request] A cam clutch 2 and an electromagnetic clutch 3 are arranged side by side on the axis IA of the foil feeding roll 1, sprockets 8 and 9 are provided on the cam clutch and the electromagnetic clutch, respectively, and one end of the chain 5 for steady flow and the chain 6 for intermittent batch feeding is connected. Each of the chains 5 for regular operation is tensioned by an appropriate means such as a spring, and the other end is attached to the foil feeding dimension adjustment lever 4 which swings with one end as a fulcrum by an appropriate driving means so that the mounting position can be adjusted. Chain 6 for intermittent batch feeding is attached to sprocket 7.
A foil feeding mechanism for a foil stamping machine, characterized in that the sprocket 8 is engaged with each other, and the electromagnetic clutch 3 is operated at an appropriate ratio to the number of swings of the lever 4.