JPS63205236A - Up-and-down type foil-stamping press - Google Patents

Abstract

PURPOSE:To make the automatic feed and discharge of paper possible and to increase the speed of foil-stamping printing by reducing the loss time of stamping, by mounting a suction means for sending a material to be printed in a feed means and a feed control means for feeding the material to be printed to a printing position in predetermined timing. CONSTITUTION:A suction means 6 consists of a lever 55, a suction arm 58 and a ring body 61, and the suction arm 58 consists of the shaft 60 having the hollow passage 59 communicating with a vacuum apparatus and the externally fitted ring body 61, and a suction hole 62 is formed to the ring body 61. A feed control means 5 consists of a plurality of gears 40, a sprocket 43, a chain 46 and a front end registering needle 68, and a sprocket 45 is intermittently driven by the segment gears 40. The front end registering needle 68 has a function for stopping fed thin paper P at a printing position and is fixed to a shaft 74 along with a gear 74a. The gear 74a meshes with the gear 73a fixed to a shaft 73 along with a lever 72 to make the front end registering needle 68 revolvable.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is applied to the technical field of hot foil stamping printing, and particularly to a foil stamping machine that is characterized by the feeding and discharging of sheets in an up-down type foil stamping machine. Regarding.

(Prior Art) As a foil stamping machine for heating and stamping a sheet of foil onto cut sheets of paper, for example, a printing plate corresponding to a cylindrical impression cylinder is reciprocated and the sheet of foil is supplied to the press.

Some printers perform hot foil stamping printing on sheets fed from a paper feed table. (Refer to Japanese Patent Publication No. 50-6806).

According to this type of hot foil stamping device, the normal printing technology in which paper sheets are fed using an inclined surface is applied as is, and the registration is at a technological level that has been perfected. Yes, and it is possible to increase the speed including paper ejection.

However, it is not economically viable unless mechanically advanced technology is used and a large plate is used to stamp a large number of high-quality foil sheets using multi-striped foil sheets, and the equipment itself is expensive. Since it is expensive, it has the disadvantage of being adopted only by a limited number of specialized professionals. On the other hand, there is a foil stamping device using an up-down method, which is an application of a printing method using a flat plate. In this case, the hot plate only moves up and down at a relatively small interval, and it is mechanically simple and inexpensive. In addition, since it is easy to operate, it is easy to adopt, and its use is widespread and widespread.

However, in this up-down foil stamping machine, the automatic sheet feeding/discharging device has hardly been completed yet. In other words, if the number of copies of paper sheets to be used is small, it can be done manually. In addition, there are various sizes and types of paper sheets, as well as various types of foil stamping, and an automatic paper feed/discharge device that can satisfy all of these requirements has not yet been put into practical use.

On the other hand, in the up-down method, it is necessary to manually feed and discharge paper in a narrow space below the heating plate.

At this time, there is a risk that the operator may inadvertently get his or her hand caught on the hot plate and cut off his or her fingers while making a positioning guide to regulate the relationship (positioning) with the sheet of paper placed under the hot plate. Since this was often the case, it was desired to make this process semi-automatic or fully automated to increase processing capacity.

(Problems to be Solved by the Invention) Therefore, as a solution, the inventor devised a method of moving the suction arm under the hot plate and reciprocating it. That is.

A suction arm that moves back and forth between the heating plate and the paper feed table on the paper feed side,
We experimented with a method in which suction arms that reciprocate between a hot plate and a paper discharge stand were installed in parallel on the paper discharge side, and the suction arms were moved alternately between the heat plates.

However, since the lifting and lowering of the hot plate itself operates instantaneously, it is not possible to reduce the time required to move each of the arms as desired, and the time required for registering under the hot plate cannot be shortened as expected. However, the loss time when the hot plate pauses above becomes longer, resulting in the inability to achieve the required speed increase.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide an inexpensive apparatus that automates and speeds up the paper feeding and discharging of an up-down foil stamping machine by means described below.

(Means for solving the problem) The means for achieving the above-mentioned purpose is to use hot foil stamping,
This is a foil stamping machine that performs high-speed printing on printing materials such as sheets of paper.It is equipped with a hot plate that moves up and down and a reel that feeds out the foil, which is placed in the main body of the foil stamping machine, and presses the foil to print on the printing material. a plurality of pairs of rollers pivotally supported at intervals on a frame arranged on one side of the foil stamping means, and one side of the printing medium is sandwiched between the rollers. A conveying means for transporting the printing material, and a width adjusting device disposed on the paper feed tray on which the printing material is placed, rotate a ring body that sucks the printing material, which is pivotally supported near the paper feeding tray, to move the printing material. It is equipped with a suction means that feeds the workpiece to the conveyance means side, and a conveyance control means that drives a part of the roller by an attachment fixed to a chain that is driven intermittently, and conveys the workpiece to the printing position at a predetermined timing. This is an up-down type foil stamping machine with the following characteristics.

(Function) According to the above configuration, the width adjusting device of the deflection prevention means is slid to correct the positional deviation of the workpiece placed on the paper feed table, and the ring body of the suction means is rotated. The workpiece is fed between the rollers of the conveying means.

The chain of the conveyance control means is driven intermittently to swing the roller by the attachment, and the workpiece is conveyed to the printing position at a predetermined timing. The workpiece is conveyed while holding both sides of the workpiece, and is stopped directly below the hot plate of the foil stamping means. By lowering the hot plate and applying pressure to the foil on the workbench, the desired print is applied to the workpiece. When printing is completed, the rollers of the conveyance means rotate, and the workpiece is conveyed to the paper output table.

(Example) Regarding the up-down type foil stamping machine of the present invention, an example in which foil stamping is performed on a sheet of paper will be described below based on the drawings.

The up-down foil stamping machine 1 is shown in FIGS. 1 to 8, and includes a foil stamping machine body 2, foil stamping means 3, conveyance means 4, conveyance control means 5, suction means 6, etc. as main parts. It is configured as follows.

As shown in FIGS. 1 and 2, the foil stamping machine main body 2 consists of a main body frame 2a, a pedestal 2b, etc., and has 6 main body frames to which a plurality of boxes 9, 10, a prime mover (not shown), etc. are attached. 2a has a U-shaped jaw 2C, as shown in FIG. 2, and is fixed to the pedestal 2b.

A paper feed box 9 is provided on both sides of the foil stamping machine main body 2.
A paper discharge box 10 is provided respectively. Further, a frame 16 having a roller 15 for transferring a sheet P, which is a printing material, to the front and rear of the flat plate 11 by using a space in the jaw 2C of the foil stamping machine main body 2, and a frame disposed opposite the frame 16. 1
7 and are arranged in parallel so that their respective ends extend to the boxes 9 and 1o. The lower ends of the frames 16 and 17 are integrally connected with the horizontal member 18, and the boxes 9 and
The sliding body 20a,
20b, the frames 16 and 17 can be moved in the front and rear directions at very low speeds. That is, the paper discharge box 10
A handle 21 is attached to the end of a screw shaft 24 rotatably supported by a boss 23 of a bracket 22 provided protruding from the frame. When rotated, the frames 16 and 17 can be moved back and forth at very low speeds.

The foil stamping means 3 includes a hot plate 3a and a plurality of reels 3b.

3c, a hot plate 3a is attached to springs 3f and 3g attached to one end of the upper part of the main body frame 2a and hangs down, and a flat plate 11 is attached to a screw 13 at a position corresponding to the hot plate 3a in the lower part. It is fixedly supported on a workbench 11a fixed to the upper end of. 14 is the hot plate 3
The foil tape 14 is arranged between the foil tape reel 3b and the foil tape reel 3b and is wound onto the foil take-up reel 3c via guides 3d and 3e. has been done.

The conveying means 4 includes a conveying roller 15. It is composed of a paper feed roller 36, a sprocket 25, etc. as main parts, and is disposed on the side of the frame 16.

As shown in FIGS. 3 and 4, the roller 15 has a thread formed on the boss of the sprocket 25, and the collar 28 of the roller 27 is attached to the boss of the sprocket 25 via the ring body 26, so that if J friction force is generated by screwing. It is constructed integrally with the sprocket 25.

The transfer roller 15 is rotatable about a horizontal shaft 29 fixed to the frame 16, and the cantilever drive roller 16
a, and a presser roller 15b provided at a position corresponding to the upper part of the roller 15a.The presser roller 15b is urged downward by a spring 76, and the lower surface of the roller 15b is lightly pressed against the upper surface of the drive roller 15a. Since they are in contact with each other, the presser roller 15b is rotated as a result of the rotation of the drive roller 15a.

The level of the contact surfaces of the rollers 15a and 15b is approximately equal to the upper surface level of the flat plate 11, and more precisely, the level of the contact surfaces of the rollers is adjusted to be higher by the thickness of the sheet P. Ru. This can be done by finely moving the sliders 20a and 20b, which slide the frames 16 and 17, up and down using known means.

Further, the transfer roller 15 is arranged on the side of the tool 16 and consists of a plurality of pairs of rollers extending across the paper feed box 9 and the paper discharge box 10. In particular, as shown in Fig. 5, the paper sheet P is conveyed by holding the lateral side (side part) between rollers, and depending on the size of the paper sheet P, the smallest one is the smallest one, and the largest one is the smallest one. At least three sets of rollers can be held at the same time. Then, the end 3 of the clamping surface
0, the end portion 3 formed on the drive roller 15a
1, and the side part (horizontal needle) of the sheet P is registered. Note that a guide plate (not shown) or a roller is arranged between the rollers 15a and 15b so that the sheet P does not fall during transport.

32 is a roller provided on the paper feed side, and 33 is a roller provided on the paper discharge side, and the paper is ejected before the single sheet P is transferred onto the flat plate 11 or away from the flat plate 11. The other side 3 that is not sandwiched before moving to the box 10 side
This serves as an auxiliary guide to prevent the 4 from hanging down and causing trouble in the transfer. Then, both the rollers 3
The top level of the rolls 2 and 33 almost coincides with the top surface level of the flat plate 11, and is attached via a horizontal shaft 35 so that it can be supported over the top of the sheet P. Note that the rollers 32 and 33 are coaxial with the drive roller 15a and can freely rotate.

36 is a paper feed roller provided on the paper feed end side of the transfer roller 15, and includes a feed roller 36a that is arranged coaxially with the drive roller 15a and can rotate integrally with the drive roller 15a, and the roller 36a.
The drive winds up the sheet P over the gold pile and actively transfers it to the foil stamping machine main body 2 side. Also,
A presser roller 3 is provided on the upper part corresponding to the feed roller 36a.
6b is provided, and is urged downward by a spring in substantially the same way as the presser roller 15b constituting the transfer roller 15, and abuts against the feed roller 36a with an appropriate force.

The conveyance control means 5 includes a plurality of gears 40 and sprockets 43
, a chain 46, a front end register needle 68, etc., and a driving motor is attached.

38 is an output shaft of the prime mover, a segment gear 40 is attached on the same axis, and a small gear 41 that meshes with the segment gear 40 is provided. The small gear 41 is connected to the output shaft 38
A sprocket 43 is supported by a spline shaft 42 parallel to the spline shaft 42 and slidably engaged with the coaxial spline. The segment gear 4o is rotated at a constant speed by the prime mover, but the spline shaft 42 rotates intermittently so as to give the small gear 41 one stop period during one rotation, and is engaged with a coaxial sprocket 43. Through the chain 44,
Sprocket 45 is driven intermittently.

The sprocket 45a is a driving sprocket disposed coaxially with the sprocket 45, and is provided at the paper discharge side end of the transfer roller 15 row. An endless chain 46 is hung on the sprocket 45a at the end of the roller row, and is also connected to the sprocket 25 constituting the transfer roller 15.

A sprocket 47 is supported by the output shaft 38, and drives a sprocket 49 disposed on the paper feed side via an endless chain 48. A sprocket 50 is provided coaxially with the shaft supporting the sprocket 49, and can drive the sprocket 52 via a transmission chain 51 to rotate a crank wheel 53 provided coaxially with the sprocket 52. The crank wheel 53 is
A lever 55 can be swung about a horizontal axis 56 via a rod 54 . Further, the horizontal shaft 56 serving as the fulcrum of the lever 55 is connected to an insertion hole 6 provided in the frame 16.17.
7 (see Figure 1), and both ends thereof are connected to the paper feed box 9.
It is supported by a bracket (not shown) provided on the side.

The front end register needle 68 is for stopping the fed sheet P at the printing position, and is fixed to the shaft 74 together with the gear 74a, as shown in FIG. 8. The gear 74a meshes with the gear 73a fixed to the shaft 73 together with the lever 72.
The front end register needle 68 is made rotatable. 75 is a tension spring.

The suction means 6 includes a lever 55, a suction arm 58, and a ring body 61, and is disposed at the front end of the frame 16.about.17.

A suction arm 58 is attached to the lever 55 via a bracket 57.
is installed. This suction arm 58 has a shaft 6o having a hollow passage 59 communicating with a vacuum device (not shown), and the shaft 60.
is fixed to the bracket 57 at both ends, and the shaft 60
It consists of a ring body 61 which is fitted onto the outside of the body, and a suction hole 62 is formed in the ring body 61. The ring body 61 has a length corresponding to at least the gold pile of the sheet P, is rotatable about the shaft 60, and closes communication between the hollow passage 59 and the suction hole 62 by rotating at a predetermined angle. is configured to do so.

Reference numeral 63 denotes a guide plate provided at an intermediate portion between the paper feed roller 36 and the suction arm 58. Reference numeral 64 is a paper feed tray on which the sheet P is placed on the paper feed side, and 65 is a level detection rod for keeping the upper end level position of the sheet P on the paper feed tray 64 constant. Mounted on the tip. In addition, 66 is a paper discharge tray on which the sheet P after foil stamping is placed on the paper discharge side.

The deflection prevention means 7 prevents the sheet P from being misaligned during conveyance, and includes a width shifting device 7a, and as shown in FIG. By means of the movable width shifting device 7a, the side registration of the sheet P is carried out in advance.

Note that since the sheet P is conveyed with its side portions being pinched, it tends to be deflected to the side opposite to the pinching side during conveyance. In order to regulate this, a plurality of drive rollers 36a of the paper feed roller 36 are provided on the same axis so that they can be driven all over the sheet P, so that among the plurality of drive rollers 36a, the outer side which is the deflection side is provided. It is preferable to increase the circumferential speed by making the diameter of the roller somewhat larger than that of the inner roller to prevent deflection.

Further, a tapered surface inclined inwardly over the width of the drive roller 15a of the transfer roller 15 may be formed at the nipping portion of the sheet P to prevent deflection.

Next, the operating procedure for feeding and discharging paper in the above embodiment will be explained. First, the width adjustment device 7a is slid to lightly press the sheet P placed on the paper feed table 64, thereby correcting the misalignment of the paper feed position. Next, when the prime mover is driven, the sprocket 45a
The chain 46 is interlocked and driven by intermittent driving. At this time, the chain 46 is driven intermittently once to feed the paper feed roller 3.
From 6.

The sheet P moves to the front end registration needle 68 and stops. Assuming that this is a constant travel path for feeding 21 sheets, the total loop length of the chain 46 is determined to be an integral multiple of the constant travel path. In Example '', it is set to 4 times. Therefore, the total length of the loop is divided into four segments, and attachments 69, 69a and 70 are attached to the chain in each segment (see FIG. 4).

This ensures that the beginning of the first segment is at the paper feed roller 36 when the chain 46 is driven.

The phases of the aforementioned segment gears 40 are adjusted and interlocked. Furthermore, the suction arm 58 suctions the sheet P just before the beginning of the first segment starts to move, and swings in the direction shown by the arrow A, and the sheet P passes through the guide plate 63 and is delivered to the roller suction opening 71. The lever 55 is adjusted and set to move the tip.

At this time, the attachment 69 at the top of the first segment is attached to the protrusion 7 provided on the pressing roller 36b side of the paper feed roller 36.
1 and slightly pushes up the presser roller 36b, so that the leading edge of the sheet P touches the presser roller 36b.
When the chain 46 is driven at the timing when the sheet P is fed in between, the projection 71 is disengaged, the paper feed roller 36 rotates, and the sheet P starts to be fed.

The sheet P pushed out from the paper feed roller 36 is conveyed by the row of transfer rollers 15, and when its leading edge comes in front of the registration needle 68, the leading edge of the first segment is reached. The presser roller 15 of the transfer roller 15 is attached with the attachment 69 of
The sheet P is engaged with a protrusion 71a provided on the plate 71a and slightly pushes up the presser roller 15b, and at the same time, the sheet P is positioned on the flat plate la with the registration needle 68 preventing it from stalling forward.

At this timing, the chain 46 that was moving stops, the movement of the first segment in one intermittent drive section is completed, and the leading end of the second segment is fed to the position of the paper feed roller 36.

Since an attachment 69a is attached to the chain 46 in succession to the attachment 69, immediately after the sheet P is positioned by the registration needle 68, the protrusion 71a engages with it to push down the presser roller 15b from the opposite direction. The chain 46 is stopped in a forcedly compressed state. During this stop period, the hot plate 3a is lowered and the required foil stamping is completed.

At this time, the sheet of paper P is not lifted up together with the hot plate 3a due to the above-mentioned reduction.

That is, in the state shown in FIG. 1.2, the sheet P is fed onto the flat plate 11, and by driving the drive motor (not shown) of the foil stamping machine body 2, the hot plate 3a begins to descend. At the same time, since the frame 12 is integrally supported, the foil tape 14 provided on the frame 12 is lowered,
The foil tape 14 is pressed by the hot plate 3a on the paper sheet P.
The dye is melted out from the tape, and the letters or patterns affixed to the hot plate 3a are printed on the paper sheet P by foil stamping. When the foil stamping is finished, the hot plate 3a rises again, and the foil sheet 14 is moved by a motor (not shown) installed on the winding side in preparation for the next foil stamping.
is wound onto the take-up reel 3C. After that, the foil-stamped sheet P may be discharged.

Then, when the stop period passes and the second intermittent drive of the chain 46 begins, the forced pressure is released and the transfer roller 1
5, the sheet P is conveyed to the paper ejection side in the normal nipping state, but at the timing of the end of this second intermittent drive, the sheet P is positioned on the paper ejection tray 66, and the sheet P is moved to the paper ejection side by the transfer roller The grip is released and the paper is ejected.

The release of this clamping is performed by the same means as described above, so a description thereof will be omitted. □ By the way, the operation of the front end register needle 68 is as follows. That is, as shown in FIGS. 3 and 8, when the lever 72 is rotated in the direction of arrow B by the attachment 70 provided on the chain 46, the shaft 73 that fixedly supports the lever 72 is twisted, and the gear 73a is rotated. , 74a, the register needle 68 attached to the shaft 74 stands up in the direction of arrow C, and its tip is located on the upper surface of the flat plate 11. When the attachment 70 is disengaged, the spring 75 returns the lever 72 to its original position. In addition, the axis 73.7
4 is rotatably supported by both frames 16 and 17. In the above, the intermittent drive regulated for each segment is repeated, and all operations in segment units are instantaneously performed to ensure automatic feeding and ejection of sheets P.

In the above-mentioned embodiment, the sheets P are transported by rollers, but instead of this, the sheets P may be fed and discharged by a gripper attached to a chain via an attachment. This gripper moves segmentally in a normally closed state, and the claws of the gripper are released when squeezing the sheet fed by the paper feed roller or suction roller and performing front edge registration, or when ejecting the paper onto the paper output tray. Therefore, the process is carried out in exactly the same manner as in the above embodiment.

(Effects) According to the present invention, sheets can be automatically fed and discharged from a foil stamping machine while holding the sides of the sheets. Therefore, it is possible to perform registration on a flat surface instead of using an inclined surface as in the conventional method. Furthermore, since the loss time in foil stamping can be reduced, it is possible to speed up foil stamping printing.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of an up-down type foil stamping machine, FIG. The figure is a partial sectional view of the conveyance means, FIG. 4 is a side view of the conveyance means taken along line IV-IV in FIG. 3, and FIG. A plan view of the main parts. FIG. 6 is a side view of the same, FIG. 7 is a side view illustrating the operation of the suction means showing the feeding state of the workpiece, and FIG. 8 is a side view illustrating the operation of the conveyance control means showing the positioning state of the workpiece. . 1...Up-down type foil stamping machine, 2...
Foil stamping machine body, 3... Foil stamping means, 4...
Conveyance means, 5... Conveyance control means, 6...
・Adsorption means, 7...Deflection prevention means, P...
...Workpiece (sheet of paper). □□vomit, 1 ■ Isamu 3 drawing rate 4 drawing

Claims (1)

[Claims] (1) A foil stamping machine that performs high-speed printing on printing materials such as sheets of paper by hot foil stamping, and is equipped with a hot plate that moves up and down and a reel that feeds out the foil, which is placed in the main body of the foil stamping machine, and which processes the foil. It is equipped with a foil stamping means for printing on the printing material by pressure, and a plurality of pairs of rollers supported at intervals by a frame disposed on one side of the foil stamping means, and the printing material is pressed between the rollers. A conveyance means that conveys the printed material while holding one side of the printed material, and a width adjustment device provided on the paper feeding table on which the printed material is placed, adsorbs the printed material that is pivoted near the paper feeding table. Conveyance in which a suction means that feeds the workpiece to the conveyance means side by rotation of a ring body and a part of the roller are driven by an attachment fixed to an intermittently driven chain, and the workpiece is conveyed to the printing position at a predetermined timing. An up-down foil stamping machine characterized by comprising a control means.