KR20210052215A - Transfer apparatus and transfer method thereof - Google Patents

Abstract

The present invention provides a transfer apparatus which can effectively use a transfer material without wasting the transfer material, stabilize the transport of the transfer material by reducing the number of step-back times of the transfer material, and improve the product yield. A plate cylinder (20) of a transfer unit (2) has only one transfer surface (22). One transfer is performed by one rotation of the plate cylinder (20). A control unit (5) continuously repeats a transfer operation of one cycle for performing a plurality of transfers by rotating the plate cylinder (20) an arbitrary number of times while continuously transporting the transfer material (6) in a forward direction, and controls step-back for transporting the transfer material (6) in a reverse direction such that the area of the transfer material (6) used in the first transfer of the next cycle becomes an area adjacent to the downstream side in the transport direction of the area used in the first transfer of the previous cycle when the transfer of one cycle is completed and the transfer of the next cycle is performed.

Description

Transfer device and transfer method thereof {TRANSFER APPARATUS AND TRANSFER METHOD THEREOF}

The present invention relates to a transfer device for transferring a transfer material to a substrate to be transferred by using a plate copper and a press copper, and a transfer method thereof.

A device for transferring a transfer material to a substrate to be transferred is described in Patent Document 1.

The transfer device described in Patent Document 1 includes an embossing mechanism (corresponding to the transfer unit of the present invention) constituted by an embossing cylinder (corresponding to the plate copper of the present invention) and a presser, and a winding foil for embossing (corresponding to the transfer material of the present invention). ), and a material layer (equivalent to the substrate to be transferred of the present invention) and the like.

Then, the embossing winding foil and the material layer are superimposed and advanced, passing between the embossing cylinder and the pressing copper, and the embossing winding foil is embossed on the material layer by the embossing gold plate (corresponding to the transfer surface of the present invention) of the embossing cylinder ( It is equivalent to the transfer of the present invention).

In addition, by controlling the conveying means from the end of one embossing until the next embossing is performed, the conveying speed of the winding foil for embossing is reduced and retracted. The interval is shortened, and the amount of the area conveyed in a state not used for embossing in the winding foil for embossing is reduced, thereby reducing waste of the winding foil for embossing.

According to the transfer device disclosed in Patent Document 1, the amount of the area conveyed in a state not used for embossing in the winding foil for embossing can be reduced to some extent, but the amount that can be reduced is small and waste of the winding foil for embossing is reduced. It cannot be reduced very much.

Accordingly, the inventors of the present invention have developed a transfer device capable of significantly reducing waste of transfer material by reducing the amount of the non-transferred area in the transfer material.

The transfer device developed by the inventors and the like will be described based on FIGS. 8 to 11.

Fig. 8 is a schematic diagram of a transfer unit of a transfer device developed by the inventors of the present invention, and a plate copper 100 and a pressing copper 101 are used as the transfer unit 102. The plate copper 100 has a transfer surface 103, and the transfer surface 103 is provided on the embossed plate 104. A surface of the plate copper 100 other than the transfer surface 103 is a non-transfer surface 105.

The plate copper 100 rotates at a constant speed according to the transfer speed in the counterclockwise rotation direction, and does not rotate in the clockwise rotation direction. The pressure copper 101 rotates at the same speed as the plate copper 100 in the clockwise rotation direction, and does not rotate in the counterclockwise rotation direction.

The transfer material 106 and the substrate to be transferred 107 are conveyed in the forward direction (arrow a direction) and the reverse direction (arrow b direction) by a step-back roller (not shown), respectively.

The transfer device rotates at a transfer speed in synchronization with the plate copper 100 and the pressure copper 101, rotates a step-back roller (not shown) forward to convey the transfer material 106 and the substrate 107 in the forward direction, and the plate copper ( 100) and the pressure copper 101 are passed in a stacked state. During one rotation of the plate copper 100, the transfer material 106 is transferred to the transfer target material 107 by the transfer surface 103 of the plate copper 100 and the circumferential surface of the pressure copper 101.

When the transfer is complete, the transfer device reverses the step-back roller (not shown) during one rotation of the plate copper 100 to transfer the transfer material 106 and the substrate 107 in the reverse direction by a predetermined distance to step back, The area used for the transfer of the transfer material 106 and the area to which the transfer material 106 of the substrate 107 is transferred are adjusted. Then, the transfer device rotates a step-back roller (not shown) in the forward direction to transfer the transfer material 106 and the substrate 107 in the forward direction to transfer the plate copper 100 in the second rotation.

Further, the stepback of the transfer material 106 and the substrate 107 to be transferred includes control of acceleration and deceleration during conveyance in the reverse direction. Details of the stepback control will be described later.

The transfer operation of the transfer material 106 and the substrate 107 to the plate copper 100 and the transfer operation by the transfer surface 103 will be described based on FIG. 9.

In Fig. 9, frames corresponding to the distance required for transfer of the transfer surface 103 are formed on the transfer material 106 and the substrate 107 to be transferred, respectively, so that the transfer and transfer operations are easily understood. In addition, in an actual transfer device, a frame is not formed on the transfer material 106 and the substrate 107 to be transferred. The frame of the oblique area of the transfer target material 107 is an area that is not transferred (area used for printing or other than transfer), and the frame of the blank area (hereinafter referred to as a blank area) is a transfer area.

The broken line is the transfer position 108 nipping the transfer material 106 and the substrate 107 to the transfer surface 103 of the plate copper 100 and the circumferential surface of the pressure copper 101.

Fig. 9A shows the state before the start of transfer, and the transfer surface 103 is shifted from the transfer position 108.

From this state, while the plate copper 100 rotates, the transfer material 106 and the transfer target material 107 are synchronously conveyed in the forward direction (arrow a direction) at the same transfer speed.

As shown in Fig. 9B, when the transfer surface 103 moves to the transfer position 108, the transfer surface 103 transfers the transfer material 106 to the transfer target material 107. As shown in FIG. The area used for the transfer of the transfer material 106 is set to (1), and the area of the substrate 107 to which the transfer material 106 is transferred is set to (A).

As shown in Fig. 9C, when the non-transfer surface 105 of the plate copper 100 passes through the transfer position 108, the transfer material 106 is conveyed in the reverse direction (arrow b direction) by a predetermined distance and stepped back. The material 106 is returned by a predetermined distance. Thereafter, the transfer material 106 is conveyed in the forward direction, so that the transfer surface 103 is set as the transfer position 108 in the second rotation of the plate copper 100 as shown in FIG. 9D.

At this time, the region 2 of the transfer material 106 is made to coincide with the transfer position 108, and the region 2 is used for transfer of the transfer surface 103. The area 2 of the transfer material 106 is an area adjacent to the upstream side in the conveyance direction of the area 1 of the transfer material 106 used for transfer in the first rotation of the plate copper 100.

In the state shown in Fig. 9C, the transfer object 107 is conveyed in the reverse direction, stepped back, and returned by a predetermined distance. The return distance of the transfer target material 107 is different from the return distance of the transfer material 106. Thereafter, the transfer target material 107 is transferred in the forward direction in synchronization with the transfer material 106, so that the transfer surface 103 moves to the transfer position 108 in the second rotation of the plate copper 100 as shown in FIG. 9D. At this time, the blank area (B) of the transfer target material 107 is made to coincide with the transfer position 108, and the transfer material 106 is transferred to the blank area (B). The blank area (B) of the transfer target material 107 is the conveyance direction of the area (A) of the transfer material 106 to which the transfer material 106 is transferred to the transfer surface 103 at the first rotation of the plate copper 100 It is the blank area closest to the upstream side.

As shown in Fig. 9E, when the non-transfer surface 105 of the plate copper 100 passes through the transfer position 108, the transfer material 106 is conveyed in the reverse direction by a predetermined distance to step back, and the transfer material 106 is transferred. It is returned by a predetermined distance. Thereafter, the transfer material 106 is conveyed in the forward direction, so that the transfer surface 103 is set as the transfer position 108 at the third rotation of the plate copper 100 as shown in FIG. 9F.

At this time, the region 3 of the transfer material 106 is made to coincide with the transfer position 108, and the region 3 is used for transfer of the transfer surface 103. The region 3 of the transfer material 106 is a region adjacent to the upstream side in the conveyance direction of the region 2 of the transfer material 106 used for transfer in the second rotation of the plate copper 100.

In the state shown in Fig. 9E, the transfer object 107 is conveyed in the reverse direction, stepped back, and returned by a predetermined distance. After that, the transfer target material 107 is transferred in the forward direction in synchronization with the transfer material 106, so that the transfer surface 103 has moved to the transfer position 108 at the third rotation of the plate copper 100 as shown in FIG. 9F. At this time, the blank area (C) of the transfer target material 107 is made to coincide with the transfer position 108, and the transfer material 106 is transferred to the blank area (C). The blank area (C) of the transfer target material 107 is the conveyance direction of the area (B) of the transfer material 106 to which the transfer material 106 is transferred to the transfer surface 103 at the second rotation of the plate copper 100 It is the blank area closest to the upstream side.

The conveyance control of the transfer material 106 will be described based on FIGS. 10 and 11. 10 is a schematic diagram of the transfer control of the transfer material in the first and second rotations of the plate movement of the transfer device developed by the inventors, etc., and FIG. 11 is a schematic diagram of the first rotation to the 6th rotation of the transfer device developed by the present inventors. It is a schematic diagram of the transfer control of the transfer material up to.

As shown in Fig. 10, the distance required for transferring the transfer surface 103 is defined as L. L is a distance obtained by adding the minimum margin required for transfer to the top and bottom size (length in the rotational direction) of the transfer surface 103.

The distance in the rotation direction of the plate copper 100 of the frame shown in FIGS. 9, 10, and 11 is L.

When the plate copper 100 shifts from the first rotation to the second rotation, that is, after the transfer by the transfer surface 103 of the first rotation is completed, the speed of the transfer material 106 being conveyed at the transfer speed in the forward direction is increased. It decelerates and stops. Thereafter, the transfer material 106 is stepped back, and the stepback is as follows.

The stationary transfer material 106 is accelerated to a predetermined conveying speed in the reverse direction (return direction) and conveyed at a predetermined conveying speed. After that, in order to stop the stepback, it decelerates from a predetermined conveying speed and stops conveying in the reverse direction by a predetermined distance. This transfer of a predetermined distance including acceleration and deceleration in the reverse direction is a stepback. The distance from the stop to the predetermined conveyance speed is defined as the acceleration distance during stepback, and the distance from the conveyance speed to stop is defined as the deceleration distance during stepback. In addition, the conveyance during stepback may be switched to deceleration immediately after acceleration at the predetermined conveyance speed without leaving a distance for conveying at a predetermined conveyance speed.

Then, at the second rotation of the plate copper 100, the transfer material 106, which has stopped until the transfer to the transfer surface 103 starts, is accelerated and conveyed in the forward direction at the transfer speed.

The distance (deceleration distance after transfer) from the state in which the transfer material 106 is being conveyed in the forward direction at the transfer speed to stop by deceleration (deceleration distance after transfer) is defined as β. In addition, the distance (acceleration distance prior to the transfer) from which the stationary transfer material 106 is accelerated to the transfer speed after stepping back in the forward direction is defined as α.

The deceleration distance (β) after transfer and the acceleration distance (α) before transfer are the characteristics of the drive motor that rotates the stepback roller (not shown), the transfer speed, the return distance by stepback, and the non-inclination surface of the plate movement 100 ( 105) is a parameter determined according to the length.

The deceleration distance β after transfer and the acceleration distance α before transfer are automatically determined using a recommended known control device according to the characteristics of the drive motor.

In addition, the acceleration distance during stepback, the deceleration distance during stepback, and the conveyance speed during stepback, which transfer the transfer material 106 in the reverse direction (return direction), are also set. ) Is determined as well.

The distance at which the transfer material 106 is conveyed in the reverse direction in one stepback is defined as the return distance R10, and the return distance R10 will be described below.

As shown in FIG. 10, the area 2 of the transfer material 106 used for transfer by the transfer surface 103 at the second rotation of the plate copper 100 is the transfer surface 103 at the first rotation of the plate copper 100. ) Is an area adjacent to the upstream side in the conveyance direction of the area (1) of the transfer material 106 used.

Therefore, the transfer of the second rotation is started from the upstream position in the conveyance direction of the region 1 (transfer end position), so that the return distance R10 can be derived as α+β.

In FIG. 10, since α=2L and β=2L, the return distance R10 becomes a distance of 4L. In addition, the conveyance distance R in the forward direction in one rotation of the plate copper is a distance of 5L.

As shown in Fig. 11, the area 3 of the transfer material 106 used for transfer by the plate copper 100 at the third rotation is an area adjacent to the upstream side of the transfer direction of the area 2 used for transfer at the second rotation. to be.

The area 4 of the transfer material 106 used for transfer by the plate copper 100 at the fourth rotation is an area adjacent to the upstream side in the conveyance direction of the area 3 used for transfer at the third rotation.

The region 5 of the transfer material 106 used for transfer by the plate copper 100 at the fifth rotation is a region adjacent to the upstream side in the conveyance direction of the region 4 used for transfer at the fourth rotation.

The region 6 of the transfer material 106 used for transfer by the plate copper 100 at the sixth rotation is a region adjacent to the upstream side in the conveyance direction of the region 5 used for transfer at the fifth rotation.

In addition, when the plate copper 100 shifts from the 2nd to the 3rd rotation, when the 3rd to the 4th rotation, when the 4th to 5th rotation, and the 5th to 6th rotation When transitioning, the return distance R10 is a distance of 4L.

In Fig. 11, the distance between α and β is set to 0 (α = 0, β = 0), and the drawing is simplified to make it easier to understand.

Similarly, in the case of the 6th rotation of the plate copper 100 and after the 6th rotation, the transfer does not always cause waste to the transfer material 106 by repeatedly performing stepback at the return distance (R10) = 4L for each rotation of the plate copper 100. You can do it.

According to the transfer apparatus developed by the inventors of the present invention, since the area adjacent to the upstream side of the transfer direction of the area used for transferring the transfer material 106 is used for sequential transfer, the transfer material 106 can be effectively used without wasting.

JP 3650197 B2

As a result of transferring with a transfer device developed by the present inventors, the following problems have occurred.

When the transfer material 106 is stepped back and the transfer direction is switched to the forward or reverse direction, the rotation direction and rotation speed of the step-back roller (not shown) are controlled, but when the transfer direction of the transfer material 106 is switched. Due to the rotational inertia force of the stepback roller (not shown), the rotational speed control or stop position control of the stepback roller (not shown) becomes unstable, and thus the behavior of the transfer material 106 becomes unstable.

In addition, when the transfer direction of the transfer material 106 is switched, an inertial force acts on the transfer material 106 in the transfer direction before conversion. If the transfer material 106 has poor followability with respect to the change in the forward and reverse rotation of the step-back roller (not shown) that conveys the transfer material 106 due to this inertial force, there is a possibility that the transfer material 106 may be distorted or torn. In some cases, the transfer of the transfer material 106 is not stable.

Since the behavior of the transfer material 106 is unstable and the transfer is not stable, a transfer failure occurs and the product yield is deteriorated. This occurs every time a stepback of the transfer material 106 is performed.

The present invention has been made in order to solve the above problems, the object of which is that the transfer material can be effectively used without wasting it, and the number of stepbacks of the transfer material is reduced, thereby stabilizing the transfer of the transfer material and improving the product yield. It is to provide a transfer device and a transfer method for the same.

The transfer apparatus of the present invention includes a transfer unit, a transfer material transfer unit for transferring a transfer material to the transfer unit, a transfer source material transfer unit for transferring a transfer material to the transfer unit, and a control unit, and the transfer unit It has a platen and a platen, wherein the platen has a transfer surface in contact with the circumferential surface of the platen and a non-transfer surface not in contact with the circumferential surface of the platen, the transfer material conveying unit has a stepback roller, and the stepback roller is fixed. The transfer material is conveyed in the forward direction by rotation, and the transfer material is conveyed in the reverse direction by rotating the step-back roller, and the transfer object material conveying unit has a step-back roller, and the step-back roller is rotated forward. The transfer object is conveyed in a forward direction, and the step-back roller is rotated in a reverse direction to convey the transferred substrate in the reverse direction, and the step-back roller of the transfer material transfer unit and the step back roller of the transfer material transfer unit are rotated forward, By conveying the transfer material and the transfer target material in a forward direction, the transfer material is transferred to the transfer material by the transfer surface of the plate copper and the circumferential surface of the press copper, and the step-back roller of the transfer material transfer unit and the transfer base material A transfer device for step-back by reversely rotating a step-back roller of a conveying unit to convey the transfer material and the substrate to be transferred in a reverse direction through a gap between a non-transfer surface of the plate copper and a circumferential surface of the plate copper,

The plate movement of the transfer unit has only one transfer surface, and the transfer is performed once with one rotation of the plate movement, and the control unit rotates the plate movement arbitrary multiple times while continuously conveying the transfer material in the forward direction. The transfer operation of one cycle, which performs a plurality of transfers, is repeated a plurality of times in succession, and the transfer of one cycle is terminated, and when transfer of the next cycle is performed, the transfer used for the first transfer of the next cycle A transfer apparatus characterized by controlling a stepback for conveying the transfer material in the reverse direction so that the area of the material becomes an area adjacent to the upstream side of the conveying direction of the area used for the first transfer in the previous cycle.

In the transfer apparatus of the present invention, when the transfer of one cycle is completed and the transfer of the next cycle is performed, the transfer unit is within the range of the transfer material used for transfer until the previous cycle. The transfer material is determined whether or not, and if there is, so that the area of the transfer material used for the first transfer of the next cycle is an area adjacent to the upstream side of the transfer direction of the area used for the first transfer in the previous cycle. Controls the stepback for conveying in the reverse direction, and if there is no, the area of the transfer material used for the first transfer of the next cycle is an area adjacent to the upstream side of the transfer direction of the area used for the last transfer in the previous cycle. In this way, it is possible to provide a transfer device that controls the stepback for conveying the transfer material in the reverse direction.

In the transfer apparatus of the present invention, when the number of repeated cycles coincides with the number of transfers possible within the distance between transfer surfaces corresponding to the outer circumferential length of the plate copper, the control unit determines that there is no area available for transfer, and matches. In the case of not doing so, it is possible to use a transfer device in which it is determined that there is an area usable for the transfer.

In the transfer device of the present invention, the control unit can be a transfer device that controls a stepback for conveying the transfer target material in the reverse direction every one rotation of the plate copper.

The transfer method of the transfer device of the present invention is composed of a plate copper and a pressing column having only one transfer surface, and a transfer unit that transfers the transfer material to the substrate to be transferred, and the transfer material in the forward and reverse directions by forward and reverse rotation. In the transfer method of a transfer apparatus comprising a step-back roller for conveying, and a step-back roller for conveying an object to be transferred in a forward or reverse direction by forward and reverse rotation,

In a state in which the transfer material is continuously conveyed in the forward direction, the plate copper is rotated a plurality of times to perform a plurality of transfers as one cycle, and a transfer method in which the transfer is transferred by repeating the one cycle a plurality of times, Whenever the transfer operation by one rotation of the plate copper ends, it is determined whether the number of rotations of the plate movement matches the number of rotations in one cycle of the plate movement, and if not, the transfer material is continuously conveyed in the forward direction. , The transfer of the cycle is continued, and if it coincides, the stepback roller is rotated reversely to convey the transfer material in the reverse direction to step back, and the transfer of the cycle is terminated to perform the transfer of the next cycle. The distance at which the transfer material is transferred in the reverse direction is the distance at which the area of the transfer material used for the first transfer of the next cycle becomes an area adjacent to the upstream side of the transfer direction of the area used for the first transfer in the previous cycle. It is a transfer method of a transfer device, characterized in that.

In the transfer method of the transfer device of the present invention, when transfer of one cycle is finished and transfer of the next cycle, whether there is an area that can be used for transfer within the range of use of the transfer material used for transfer up to the previous cycle. It determines whether there is no, and if it is determined that there is, reverse rotation of the stepback roller to convey the transfer material in the reverse direction to step back, and the distance to be conveyed in the reverse direction is used for the first transfer of the next cycle. The distance is the area adjacent to the upstream side of the conveying direction of the area used for the first transfer in the previous cycle, and when it is determined that there is no, the step-back roller is rotated in reverse to convey the transfer material in the reverse direction. The distance at which the area of the transfer material used for the first transfer of the next cycle is the area adjacent to the upstream side of the transfer direction of the area used for the last transfer in the previous cycle. This can be done by the transfer method of the transfer device.

In the transfer method of the transfer apparatus of the present invention, when the number of repeated cycles coincides with the number of transfers possible within the distance between the transfer surfaces corresponding to the outer circumferential length of the plate copper, it is determined that there is no area usable for transfer and matches. In the case of not doing so, it is possible to use a transfer method of the transfer apparatus in which it is determined that there is an area available for transfer.

In the transfer method of the transfer device of the present invention, the step-back roller is reversely rotated every one rotation of the plate copper, and the transfer object is conveyed in the reverse direction to step back.

According to the transfer apparatus and the transfer method thereof of the present invention, the transfer material can be effectively used without wasting it, and the number of stepbacks can be reduced to stabilize the transfer of the transfer material and improve the product yield.

1 is an overall front view showing an example of an embodiment of a transfer device of the present invention.
Fig. 2 is a schematic diagram of a plate copper of the transfer unit of the present invention shown in Fig. 1.
Fig. 3 is an explanatory diagram of a transfer operation of a transfer material and a substrate to be transferred in the transfer apparatus of the present invention and transfer by a transfer surface.
Fig. 4 is a schematic diagram of transfer control of a transfer material from the first cycle of plate movement to the second cycle of plate movement according to the embodiment.
Fig. 5 is a schematic diagram of transfer control of a transfer material from the first cycle of plate movement to the eighth cycle of plate movement according to the embodiment.
6 is a graph comparing the transfer state of the transfer material and the object to be transferred of the transfer device of the present invention and the transfer state of the transfer material and the substrate to be transferred of the transfer device developed by the inventors of the present invention.
7 is a flowchart of a method for controlling the transfer device of the present invention.
Fig. 8 is a schematic diagram of a transfer unit of a transfer device developed by the present inventors and the like.
9 is an explanatory diagram of a transfer operation of a transfer material and a substrate to be transferred and transfer by a transfer surface of a transfer device developed by the inventors of the present invention.
Fig. 10 is a schematic diagram of the transfer control of the transfer material at the first and second rotations of a plate movement of a transfer device developed by the present inventors and the like.
Fig. 11 is a schematic diagram of the transfer control of the transfer material from the 1st rotation to the 6th rotation of the transfer device developed by the inventors of the present invention.

The overall configuration of the transfer apparatus of the present invention will be described based on Fig. 1. 1 is an overall front view showing an example of an embodiment of a transfer device of the present invention.

The transfer device 1 of the present invention includes a transfer unit 2, a transfer material supply unit 3, a transfer material recovery unit 4, a control unit 5, a transfer receiving material transfer unit, etc., The transfer material supply unit 3 and the transfer material collection unit 4 constitute a transfer material transfer unit. The transfer unit 2, the transfer material supply unit 3, the transfer material collection unit 4, and the control unit 5 are provided in the apparatus body 1a. In addition, the control unit 5 is not limited to the device body 1a, but can be installed in addition to the device body 1a.

The transfer part 2 has a plate copper 20 and a pressure copper 21.

As shown in FIG. 2, the plate copper 20 has a transfer surface 22, and the transfer surface 22 is provided on an embossed plate 23 shorter than the total circumference of the plate copper 20. A surface of the plate copper 20 other than the transfer surface 22 is a non-transfer surface 24. That is, the plate copper 20 has only one transfer surface 22.

As shown in Fig. 1, the plate copper 20 and the plate copper 21 are rotated at a constant speed according to the transfer speed in synchronization by a single drive motor (not shown). The plate copper 20 rotates in a counterclockwise direction and does not rotate in a clockwise direction. The pressure copper 21 rotates in a clockwise direction and does not rotate in a counterclockwise direction.

The transfer material 6 supplied from the transfer material supply unit 3 and the transfer target material 7 conveyed to a transfer target material transfer unit (not shown) are conveyed through between the plate copper 20 and the pressing column 21. The transfer material 6 and the transfer target material 7 are nip into the transfer surface 22 of the plate copper 20 and the circumferential surface of the plate copper 21, and the non-transfer surface 24 and the plate copper 21 of the plate copper 20 The circumferential surface of is a gap, and the transfer material 6 and the substrate 7 to be transferred are conveyed through the gap.

The transfer material 6 is transferred to the transfer target material 7 by nipping the transfer material 6 and the transfer target material 7 to the transfer surface 22 of the plate copper 20 and the circumferential surface of the pressure copper 21.

The control unit 5 controls the conveyance of the transfer material 6 and the substrate 7 to be transferred, or the rotation of the plate cylinder 20 and the pressure cylinder 21 by, for example, a CPU (central processing unit).

In the transfer unit 2 of the embodiment, a heating mechanism (not shown) is provided in the plate copper 20, and the transfer material 6 is heated by heating the transfer surface 22 of the plate copper 20 to about 150°C to 200°C, for example. It is a transfer unit that thermally transfers) to the transfer target material 7. The plate copper 20 may be a transfer part which does not heat. In the case of a transfer portion that does not heat the plate copper 20, a sizing device is installed on the upstream side in the conveyance direction of the plate copper, and paste is applied to the transfer object for transfer.

The transfer material supply unit 3 conveys the transfer material 6 toward between the plate copper 20 and the pressure copper 21 of the transfer unit 2.

The transfer material supply unit 3 includes a winding shaft 30, a supply side transfer roller 31 installed on a downstream side in the supply direction of the unwind shaft 30, and a supply side buffer installed on a downstream side in the supply direction of the supply side transfer roller 31. It has a device 32 and a supply-side step back roller 33 provided on a downstream side of the supply-side shock absorber 32 in the supply direction.

A roll-shaped transfer material 6 is mounted on the unwinding shaft 30.

The supply-side conveying roller 31 is rotated only in the unwinding direction (counterclockwise rotation direction) by a drive motor (not shown), and the transfer material 6 is wound around the outer circumferential surface. A nip roller 34 is installed in at least one place within the winding range of the transfer material 6 of the supply side transfer roller 31, and the transfer material 6 is sandwiched between the supply side transfer roller 31 and the nip roller 34. .

By rotationally driving the supply-side conveying roller 31, the roll-shaped transfer material 6 mounted on the unwinding shaft 30 is unwound and conveyed toward the supply-side shock absorber 32.

The supply-side shock absorber 32 is a loop backing that supports the transfer material 6 in the box 35 in a downward U-shape using vacuum pressure.

The supply-side stepback roller 33 is rotated forward and reverse by a drive motor (not shown), and the transfer material 6 discharged from the supply-side shock absorber 32 is wound around the outer circumferential surface. A nip roller 36 is installed in at least one position within the winding range of the transfer material 6 of the supply-side step back roller 33, and transfer material 6 to the supply-side step-back roller 33 and the nip roller 36. The transfer material 6 can be conveyed in the forward and reverse directions by holding them together.

The transfer material recovery unit 4 recovers the transfer material 6 other than the area used for transfer to the transfer unit 2, that is, the transfer material 6 not used for transfer.

The transfer material recovery unit 4 includes a recovery-side step-back roller 40, a recovery-side shock absorber 41 provided on a downstream side in the recovery direction of the recovery-side step-back roller 40, and a recovery-side shock absorber 41. It has a recovery-side conveying roller 42 provided on a downstream side in the recovery direction of and a take-up shaft 43 provided on a downstream side of the recovery direction of the recovery-side conveying roller 42.

The recovery-side stepback roller 40 is rotated forward and reverse by a drive motor (not shown), and a transfer material 6 not used for transfer is wound around the outer circumferential surface.

A nip roller 44 is installed in at least one place within the winding range of the transfer material 6 of the recovery-side step-back roller 40, and transfer material 6 that has not been used for transfer is transferred to the recovery-side step-back roller 40. And the nip roller 44 so that it can be conveyed in the forward and reverse directions.

The recovery-side shock absorber 41 is a loop vacuum that supports the transfer material 6 not used for transfer in the box 45 in a downward U-shape by using vacuum pressure.

The recovery-side transfer roller 42 is driven by rotation only in the recovery direction (counterclockwise rotation direction) by a drive motor (not shown), and a transfer material 6 not used for transfer is wound around the outer circumferential surface.

A nip roller 46 is installed in at least one place within the winding range of the transfer material 6 of the transfer roller 42 on the recovery side, and the transfer material 6 not used for transfer is nip the transfer roller 42 on the recovery side. It is pinched with a roller 46.

By rotating the recovery-side transfer roller 42, the transfer material 6 supported by the recovery-side shock absorber 41 is conveyed toward the take-up shaft 43, which is not used for transfer.

The take-up shaft 43 is rotated only in the take-up direction (counterclockwise rotation direction) by a drive motor not shown, and is recovered by winding the transfer material 6 not used for transfer.

The supply-side step-back roller 33 and the collection-side step-back roller 40 rotate forward synchronously when transferring, and convey the transfer material 6 in the forward direction.

When adjusting the position of the area used for transfer of the transfer material 6, forward and reverse rotation are repeated in synchronization with the supply-side step-back roller 33 and the recovery-side step-back roller 40, and transfer the transfer material 6 Intermittent conveyance is carried out by alternately conveying in the forward and reverse directions. This operation will be described in detail later.

The supply-side shock absorber 32 absorbs a change in tension occurring in the transfer material 6 between the supply-side transfer roller 31 and the supply-side step-back roller 33 when transferring the transfer material 6 in the reverse direction.

The recovery-side shock absorber 41 absorbs the change in tension occurring in the transfer material 6 between the recovery-side transfer roller 42 and the recovery-side step-back roller 40 when transferring the transfer material 6 in the reverse direction. do.

The transfer target material 7 is conveyed from a feeding device of an unillustrated transfer target material transfer unit installed in a place away from the transfer device 1 toward the transfer unit 2, and the transfer material 6 is transferred from the transfer unit 2 to the transfer unit 2 The transferred material to be transferred 7 is recovered by a discharge device of a transfer device carrying unit (not shown) installed in a place away from the transfer device 1.

A printing unit is installed between the transfer device 1 and the feeding device of the transfer device transfer unit (not shown), and after printing on the transfer target material 7, the print unit is conveyed to the transfer unit 2, and the print is transferred. Transfer to the substrate 7 may be performed.

In addition, a printing unit may be provided between the transfer device 1 and the discharge device of the unillustrated transfer source material transfer unit, and printing may be performed on the transferred source material 7.

In order to adjust the position of the area to be transferred of the transfer target material 7 with respect to the rotation of the plate copper 20, the upstream side in the conveyance direction bordering the transfer part 2 in the transfer path of the transfer target material 7 On the downstream side in the conveyance direction, for example, an upstream step-back roller and a downstream step-back roller (not shown) are provided in a paper feed device and a discharge device (not shown) of a transfer object material transfer unit (not shown).

The upstream step-back roller and the downstream step-back roller (not shown) rotate forward and reverse synchronously, and the target device 7 is transferred in the forward direction (arrow a direction) and the reverse direction (arrow b direction). The position of the region to which the transfer material 6 of (7) is transferred is adjusted.

The transfer material 6 and the substrate 7 are transferred by the control unit 5 to the supply-side step-back roller 33, the recovery-side step-back roller 40, the upstream-side step-back roller and the downstream-side step-back roller (not shown). It is intermittently conveyed by controlling.

The transfer material 6 is mainly composed of a film layer, a release layer, and four layers of foil and glue, and gold foil or silver foil is used as the foil. The transfer material 6 is not limited thereto.

The substrate 7 to be transferred is mainly a sealing adhesive paper composed of a surface substrate, an adhesive, and a release paper. The transfer target material 7 is not limited thereto.

Transfer by the transfer unit 2 is performed as follows.

The transfer material 6 and the substrate 7 are stacked so that the layer of the paste of the transfer material 6 and the surface substrate of the substrate 7 are in contact with each other, and between the plate copper 20 and the plate copper 21 It conveys, and the transfer material 6 and the transfer target material 7 are nip with one heated transfer surface 22 and the pressure copper 21 of the plate copper 20.

The layer of glue is melted by the heated transfer surface 22 so that the area in contact with the transfer surface 22 of the transfer material 6 is sized on the surface base material of the transfer target material 7. When the transfer material 6 and the substrate 7 are conveyed and released from the nip of the heated transfer surface 22, the temperature decreases and the paste solidifies.

After the paste is solidified, the thin area of the transfer material 6 is sized on the surface substrate of the transfer target material 7 by a release roller (not shown) installed between the transfer unit 2 and the recovery-side step-back roller 40 And unsized areas.

The foil in the unsized area is conveyed toward the take-up shaft 43 by the recovery-side step-back roller 40 together with the film layer and the release layer of the transfer material 6. When the foil in the unsized area is separated, only the sized foil remains on the substrate 7 to be transferred, and the transfer is completed.

As the transfer part 2, a transfer part that does not heat the plate copper 20 can be used, but the transfer part that does not heat the plate copper 20 transfers the transfer material by using a paste applied to the substrate to be transferred from the upstream side of the transfer part. As a method of sizing the substrate, the paste is applied to the substrate to be transferred and then transferred by nipping the substrate and the transfer material to the transfer surface of the plate copper and the circumferential surface of the plate copper. Therefore, in the case of using a transfer portion that does not heat the plate copper 20, a sizing device is installed on the upstream side of the transfer portion.

The transfer operation of the transfer material 6 and the substrate 7 to be transferred to the plate copper 20 and the transfer operation by the transfer surface 22 will be described based on FIG. 3.

In Fig. 3, frames corresponding to the distance required for transfer of the transfer surface 22 are formed on the transfer material 6 and the substrate 7 to be transferred, respectively, so that the transfer and transfer operations are easily understood. In addition, in an actual transfer device, a frame is not formed on the transfer material 6 or the substrate 7 to be transferred. The frame of the oblique area of the transfer target material 7 is an area that is not transferred (an area used for printing or other than transfer), and the frame of the blank area (hereinafter referred to as a blank area) is an area to be transferred. The non-transferred area (the oblique area in Fig. 3) of the transfer target material 7 is determined according to the design of the product manufactured by the transfer device.

The broken line is the transfer position 25 nipping the transfer material 6 and the substrate 7 to the transfer surface 22 of the plate copper 20 and the circumferential surface of the pressure copper 21.

3A shows a state before the start of transfer, and the transfer surface 22 is shifted from the transfer position 25.

From this state, while the plate copper 20 rotates, the transfer material 6 and the substrate 7 to be transferred are synchronously conveyed in the forward direction (arrow a direction) at the same transfer speed.

As shown in Fig. 3B, when the transfer surface 22 moves to the transfer position 25 at the first rotation of the plate copper 20, the transfer surface 22 transfers the transfer material 6 to the transfer object 7 It is the second warrior. The area used for the transfer of the transfer material 6 is set to (1), and the area to which the transfer material 6 of the substrate 7 is transferred is set to (A).

As shown in Fig. 3C, when the non-transfer surface 24 of the plate copper 20 passes through the transfer position 25 after completion of the transfer of the first rotation of the plate copper 20, the transfer target material 7 is reversed (arrow b direction). ) And step back. That is, through the gap between the non-transfer surface 24 of the plate copper 20 and the circumferential surface of the pressure copper 21, the transfer target material 7 is conveyed in the reverse direction by a predetermined distance. This action is a stepback. This stepback also includes control of acceleration and deceleration during conveyance in the reverse direction. Details of the stepback control will be described later.

At this time, the transfer material 6 is continuously conveyed in the forward direction.

After the transfer source 7 is conveyed in the reverse direction by a predetermined distance, the transfer source 7 is conveyed in the forward direction in synchronization with the transfer material 6. The distance conveyed in the reverse direction of the transfer target material 7 (return distance by stepback) is, as shown in Fig. 3D, when the transfer surface 22 has moved to the transfer position 25 in the second rotation of the plate copper 20. At this time, the blank area (B) of the transfer target material 7 is made to match the transfer position 25. The blank area (B) of the transfer target material 7 is the conveyance direction of the area (A) of the transfer material 6 to which the transfer material 6 is transferred to the transfer surface 22 at the first rotation of the plate copper 20 It is the blank area closest to the upstream side.

As shown in Fig. 3D, when the transfer surface 22 moves to the transfer position 25 at the second rotation of the plate copper 20, the transfer material 6 is transferred to the blank area B of the transfer target material 7 do. At this time, the area used for the transfer of the transfer material 6 is set to (2).

As shown in Fig. 3E, when the non-transferred surface 24 of the plate copper 20 passes through the residual position 25 after the second rotation type of the plate copper 20 is transferred, the transfer target material 7 is transferred in the reverse direction. I do it. At this time, the transfer material 6 is continuously conveyed in the forward direction.

After the transfer source 7 is conveyed in the reverse direction by a predetermined distance, the transfer source 7 is conveyed in the forward direction in synchronization with the transfer material 6. The return distance by the stepback of the transfer target material 7 is the same as the previous description, and as shown in Fig. 3F, when the transfer surface 22 moves to the transfer position 25 at the third rotation of the plate copper 20 The blank area (C) of the substrate 7 to be transferred is aligned with the transfer position 25. The blank area (C) of the transfer target material 7 is the transfer direction of the area (B) of the transfer material 6 to which the transfer material 6 is transferred to the transfer surface 22 at the second rotation of the plate copper 20 It is the blank area closest to the upstream side.

As shown in Fig. 3F, when the transfer surface 22 moves to the transfer position 25 at the third rotation of the plate copper 20, the transfer material 6 is transferred to the blank area C of the transfer object 7 do. At this time, the area used for the transfer of the transfer material 6 is set to (3).

That is, the plate copper 20 is rotated 3 times while the transfer material 6 is continuously conveyed in the forward direction, and the transfer material 7 is stepped back every one rotation of the plate copper 20 to transfer the transfer material 6. It is transferred to the object to be transferred 7 consecutively 3 times. Let this operation be one cycle.

As shown in Fig. 3G, when the non-transfer surface 24 of the plate cylinder 20 passes through the transfer position 25 after the third rotation of the plate cylinder 20 is completed (after the last transfer is completed in the first cycle). The transfer material 6 and the object to be transferred (7) are conveyed in the opposite direction to step back, and the transfer material (6) and the object to be transferred (7) are transferred to the non-transfer surface (24) and the pressing member (21) Each of them is conveyed in the reverse direction through the gap between the circumferential surfaces of and returned by a predetermined distance. The return distance of the transfer material 6 and the return distance of the transfer target material 7 are different. Thereafter, the transfer material 6 and the substrate 7 to be transferred are synchronously conveyed in the forward direction (see Fig. 3H).

The return distance due to the stepback of the transfer target material 7 is the same as the previous description, and as shown in Fig. 3H, when the transfer surface 22 moves to the transfer position 25 at the fourth rotation of the plate copper 20 The blank area (D) of the substrate 7 to be transferred is aligned with the transfer position 25. The blank area (D) of the transfer target material 7 is the transfer direction of the area (C) of the transfer material 6 to which the transfer material 6 is transferred to the transfer surface 22 at the third rotation of the plate copper 20 It is the blank area closest to the upstream side.

The return distance due to the stepback of the transfer material 6 is, as shown in Fig. 3H, when the transfer surface 22 moves to the transfer position 25 at the fourth rotation of the plate copper 20 (the first transfer at the second cycle). (At time), the area (4) of the transfer material (6) is aligned with the transfer position (25). The region 4 of the transfer material 6 is a region adjacent to the upstream side in the conveyance direction of the region 1 of the transfer material 6 used for transferring the transfer surface 22 at the first rotation of the plate copper 20. The region 4 of the transfer material 6 is transferred by the transfer surface 22 to the blank region D of the substrate 7 to be transferred.

The transfer operation of one cycle is performed by the control unit 5 as follows.

The control unit 5 counts the number of rotations of the plate copper 20, and determines whether the counted number of rotations of the plate copper 20 matches the number of rotations in one cycle of the plate copper 20.

When it is determined that the control unit 5 does not coincide, the transfer operation of one cycle has not been completed, so that the transfer material 6 is continuously conveyed in the forward direction to continue the transfer.

When the control unit 5 determines that the transfer operation has ended, the transfer material 6 being conveyed at the transfer speed in the forward direction is decelerate and stopped, and then the transfer material 6 is stepped back. . After step back, the transfer material 6 is accelerated to the transfer speed, and transfer of the next cycle is started.

The stepback of the transfer material 6 is performed as follows.

For example, the supply-side step-back roller 33 and the collection-side step-back roller 40 are rotated in synchronization, and the transfer material 6 is conveyed in the reverse direction (in the direction of arrow b) by a predetermined distance.

In order to stabilize the conveyance of the transfer material 6, the rotational speed of the downstream stepback roller is controlled to be faster than the rotational speed of the upstream stepback roller with respect to the direction during conveyance. Under this control, a state in which sufficient tension is always applied between the supply side step roller 33 and the recovery side step back roller 40 to convey the transfer material 6 is maintained, thereby stabilizing the transfer material 6. Can be returned. In addition, a step-back roller (not shown) that conveys the substrate 7 to be transferred is similarly controlled.

At this time, the tension of the transfer material 6 between the supply side stepback roller 33 and the supply side transfer roller 31 and the transfer material 6 between the recovery side stepback roller 40 and the recovery side transfer roller 42 The tension of is changed respectively, but the change in tension is absorbed by the supply-side shock absorber 32 and the recovery-side shock absorber 41, respectively.

After the transfer material 6 is conveyed in the reverse direction and returned by a predetermined distance, the supply-side step-back roller 33 and the recovery-side step-back roller 40 are rotated forward in synchronization, and the transfer material 6 is conveyed in the forward direction. .

The stepback of the transfer object 7 includes an upstream step-back roller and a downstream step-back roller of the transfer device transfer unit (not shown), the supply-side step-back roller 33 and the collection-side step-back roller 40. Likewise, it is controlled and performed.

The conveyance control of the transfer material 6 will be described based on FIGS. 4 and 5. Fig. 4 is a schematic diagram of transfer control of the transfer material from the first rotation of the plate movement (1st cycle) to the 6th rotation (cycle 2) of the embodiment, and FIG. 5 is the first rotation of the plate movement (1st cycle) of the embodiment. It is a schematic diagram of the transfer control of the transfer material from the 24th rotation (the 8th cycle).

As shown in Fig. 4, the distance required for transferring the transfer surface 22 is defined as L. L is a distance obtained by adding the minimum margin required for transfer to the top and bottom size (length in the rotational direction) of the transfer surface 22.

The distance between the transfer surfaces, that is, the outer circumferential length of the plate copper 20 (the distance from the position where the transfer surface starts transfer at the first rotation of the plate movement to the position at which the transfer surface starts transfer at the second rotation of the next plate movement) is defined as M.

The outer circumferential length of the plate cylinder 20 is the length of the circumferential surface of the virtual circle with the distance from the center of rotation of the plate cylinder 20 to the transfer surface 22 as a radius.

The number of rotations in one cycle of the plate copper 20 (the number of transfers in one cycle) is defined as S. In this description, the number of rotations S of the plate copper 20 in one cycle is 3.

The number of times that can be transferred within the distance between the transfer surfaces is defined as N. N can be derived as the distance M between the transfer surfaces and the distance L required for transfer of the transfer surfaces 22. That is, N=M÷L.

The distance L required for transfer of the transfer surface 22 is determined according to the upper and lower size of the transfer surface 22 and the accuracy of conveyance of the transfer material 6. The distance between the transfer surfaces (the outer circumferential length of the plate copper) (M) is determined according to the size of the plate copper 20, and the number of transfers N within the distance between the transfer surfaces can be derived as L and M, so that N is also the plate copper 20 It is determined by the size of ).

In this embodiment, N is 6, and there are five frames between the regions used for transfer of the transfer material 6 in one cycle, for example, between the region 1 and the region 2. That is, the number of times the transfer can be made within the distance between the transfer surfaces includes the first transfer.

In addition, the blank area between the areas (1) and (2) in the transfer material 6 after the transfer in the first cycle in Fig. 4 and the blank area between the areas (2) and (3) are 1 cycle. It is an unused area that occurs in the second.

That is, the number of times transferable in the unused area is N-1.

In the embodiment, when N is an integer, when M is not an integer multiple of L, a remainder occurs in N. The remainder of N denotes a range that remains unusable for transfer that is less than the distance L required for transfer of the transfer surface 22 when transferred from an unused area as shown in FIGS. 3 to 5. In the following description, N is treated as an integer rounded off the remainder.

As shown in Fig. 4, the region 1 of the transfer material 6 is used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the first cycle, and at the second rotation of the plate copper 20 The area 2 of the transfer material 6 is used for transfer by the transfer surface 22, and the area 3 of the transfer material 6 is transferred by the transfer surface 22 at the third rotation of the plate copper 20. Used for

When shifting from the first cycle to the second cycle, that is, after the final transfer of the first cycle is completed, the speed of the transfer material 6 being conveyed at the transfer speed in the forward direction is decelerate and stopped. After that, the transfer material 6 performs a stepback, and the stepback is as follows.

The stationary transfer material 6 is accelerated to a predetermined conveying speed in the reverse direction (return direction) and conveyed at a predetermined conveying speed. After that, in order to stop the stepback, it decelerates from a predetermined conveying speed and stops conveying in the reverse direction by a predetermined distance. This transfer of a predetermined distance including acceleration and deceleration in the reverse direction is a stepback. The distance from stop to the predetermined conveyance speed is defined as the acceleration distance during stepback, and the distance from the conveyance speed to stop is defined as the deceleration distance during stepback. In addition, the conveyance during stepback may be switched to deceleration immediately after acceleration at the predetermined conveyance speed without leaving a distance for conveying at a predetermined conveyance speed.

Then, at the second cycle, the transfer material 6, which has stopped until the transfer to the transfer surface 22 starts, is accelerated and conveyed in the forward direction at the transfer speed.

The distance (deceleration distance after transfer) from the state in which the transfer material 6 is being conveyed in the forward direction at the transfer speed to stop by deceleration (deceleration distance after transfer) is defined as β. In addition, the distance (acceleration distance prior to the transfer) to the transfer speed by accelerating the stationary transfer material 6 in the forward direction after stepping back is defined as α.

The deceleration distance (β) after transfer and the acceleration distance (α) before transfer are the characteristics of the drive motor that rotates the supply-side stepback roller 33 and the recovery-side stepback roller 40 shown in FIG. 1, conveyance speed, and steps. This parameter is determined according to the return distance due to the bag and the length of the non-inclinated surface 24 of the plate copper 20.

The deceleration distance β after transfer and the acceleration distance α before transfer are automatically determined using a recommended known control device according to the characteristics of the drive motor.

In addition, setting of the acceleration distance during stepback, deceleration distance during stepback, and conveyance speed during stepback, which conveys the transfer material 6 in the reverse direction (return direction), is also set as the deceleration distance after transfer (β) and the acceleration distance before transfer (α). ) Is determined as well.

The distance at which the transfer material 6 is conveyed in the reverse direction in one stepback is defined as the return distance R1, and the return distance R1 will be described below.

As shown in Fig. 4, the area 4 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the second cycle is of the plate copper 20 at the first cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 1 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation.

The area 5 of the transfer material 6 used for transfer by the transfer surface 22 in the second rotation of the plate copper 20 in the second cycle is the transfer surface in the second rotation of the plate copper 20 in the first cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 2 of the transfer material 6 used for transfer by (22).

The area 6 of the transfer material 6 used for transfer by the transfer surface 22 at the third rotation of the plate copper 20 of the second cycle is the transfer surface at the third rotation of the plate copper 20 of the first cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 3 of the transfer material 6 used for transfer by (22).

Therefore, the return distance (R1) can be derived from the following equation (1).

The number of rotations S in one cycle of the plate copper 20 is 3, and the distance M between the transfer surfaces is 6 times L as shown in Fig. 4, so the return distance R1 from Equation (1) is 6L×2+ It is α+β, and since α and β are each 2L distance, the return distance R1 becomes a distance of 16L. In addition, the transport distance R in the forward direction in one cycle is a distance of 17L.

As shown in Fig. 4, when shifting from the first cycle to the second cycle, the transfer material 6 may be transferred in the reverse direction by a distance of 16L.

As shown in Fig. 5, the return distance (R1) when transitioning from the 2nd to the 3rd cycle, the return distance (R1) when the transition from the 3rd to the 4th cycle, from the 4th to the 5th cycle The return distance R1 at the time of transition and the return distance R1 at the time of transition from the 5th to the 6th cycle are distances of 16L, respectively. In Fig. 5, α and β are set to 0 (α=0, β=0), and the drawing is simplified to make it easier to understand.

The area 7 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the third cycle is the transfer surface at the first rotation of the plate copper 20 at the second cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 4 used for transfer by (22).

The area 8 of the transfer material 6 used for transfer by the transfer surface 22 at the second rotation of the plate copper 20 at the third cycle is the transfer surface at the second rotation of the plate copper 20 at the second cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 5 used for transfer by (22).

The area 9 of the transfer material 6 used for transfer by the transfer surface 22 at the third rotation of the plate copper 20 at the third cycle is the transfer surface at the third rotation of the plate copper 20 at the second cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 6 used for transfer by (22).

The area 10 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the fourth cycle is the transfer surface at the first rotation of the plate copper 20 at the third cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 7 used for transfer by (22).

The area 11 of the transfer material 6 used for transfer by the transfer surface 22 in the second rotation of the plate copper 20 in the fourth cycle is the transfer surface in the second rotation of the plate copper 20 in the third cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 8 used for transfer by (22).

The area 12 of the transfer material 6 used for transfer by the transfer surface 22 at the third rotation of the plate copper 20 at the fourth cycle is the transfer surface at the third rotation of the plate copper 20 at the third cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 9 used for transfer by (22).

The area 13 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the fifth cycle is the transfer surface at the first rotation of the plate copper 20 at the fourth cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 10 used for transfer by (22).

The area 14 of the transfer material 6 used for transfer by the transfer surface 22 at the second rotation of the plate copper 20 at the fifth cycle is the transfer surface at the second rotation of the plate copper 20 at the fourth cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 11 used for transfer by (22).

The area 15 of the transfer material 6 used for transfer by the transfer surface 22 at the third rotation of the plate copper 20 at the fifth cycle is the transfer surface at the third rotation of the plate copper 20 at the fourth cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 12 used for transfer by (22).

The area 16 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the 6th cycle is the transfer surface at the first rotation of the plate copper 20 at the 5th cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 13 used for transfer by (22).

The area 17 of the transfer material 6 used for transfer by the transfer surface 22 at the second rotation of the plate copper 20 at the 6th cycle is the transfer surface at the second rotation of the plate copper 20 at the 5th cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 14 used for transfer by (22).

The area 18 of the transfer material 6 used for transfer by the transfer surface 22 at the 3rd rotation of the plate copper 20 at the 6th cycle is the transfer surface at the 3rd rotation of the plate copper 20 at the 5th cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 15 used for transfer by (22).

As shown in Fig. 5, when shifting from the 6th cycle (the cycle of the same number of times as the number of transferable times N within the distance between the transfer surfaces) to the 7th cycle (the cycle of the number of transferable times N+1 within the distance between the transfer surfaces) If transfer is attempted using the return distance (R1) as the distance derived from equation (1), the transfer surface 22 is used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the 7th cycle (19). Is an area adjacent to the upstream side in the conveyance direction of the area 16 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 in the 6th cycle, and the area is already used for transfer.

That is, when the transfer of the 6th cycle is completed, the area on the downstream side of the conveying direction of the area 18 used for transfer at the end of the 6th cycle (within the used range) is all used for transfer, so a new area that can be used for transfer. I need this.

So, when transitioning from the 6th to the 7th cycle, the return distance (R1) is derived from the equation (2) after the transfer by the transfer surface 22 of the 3rd rotation of the plate copper 20 of the 6th cycle is completed. At the first rotation of the plate copper 20 at the 7th cycle, the transfer surface 22 transfers the area of the transfer material 6 used for transfer to the 3rd rotation of the plate copper 20 at the 6th cycle. The slope 22 is set as the region 19 adjacent to the upstream side in the conveyance direction of the region 18 used for transfer. This area 19 is a new area.

This is done by the control unit 5. For example, the controller 5 counts the number of cycles (hereinafter referred to as the number of cycles), and if the counted number of cycles does not match the number of transferable times N within the distance between the transfer surfaces, the control unit 5 It is assumed that there is an area that can be used for transfer within the range, and the return distance (R1) by stepback of the transfer material (6) is the distance derived from equation (1) (M×(S-1)+α+β). .

If the counted cycle number coincides with the number of transferable times N within the distance between the transfer surfaces, the control unit 5 says that there is no area available for transfer within the range that has been used, and the return distance by stepback of the transfer material 6 Let (R1) be the distance (α+β) derived from equation (2).

At the second rotation of the plate copper 20 at the 7th cycle, the transfer surface 22 is the area 20 of the transfer material 6 used for transfer, and the transfer surface at the 3rd rotation of the plate copper 20 at the 7th cycle. 22) The area 21 of the transfer material 6 used for this transfer is a new area.

In the case of shifting from the 7th to the 8th cycle, the return distance (R1) is taken as the distance derived from Equation (1).

The area 22 of the transfer material 6 used for transfer by the transfer surface 22 at the first rotation of the plate copper 20 at the 8th cycle is the transfer surface at the first rotation of the plate copper 20 at the 7th cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 19 used for transfer by (22).

The area 23 of the transfer material 6 used for transfer by the transfer surface 22 at the second rotation of the plate copper 20 at the 8th cycle is the transfer surface at the second rotation of the plate copper 20 at the 7th cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 20 used for transfer by (22).

The area 24 of the transfer material 6 used for transfer by the transfer surface 22 at the 3rd rotation of the plate copper 20 at the 8th cycle is the transfer surface at the 3rd rotation of the plate copper 20 at the 7th cycle. It is an area adjacent to the upstream side in the conveyance direction of the area 21 used for transfer by (22).

That is, the return distance (R1) due to the stepback of the transfer material 6 in the case of shifting the cycle until the number of times the cycle is performed becomes the number of transferable times N within the distance between the transfer planes is calculated from the previous equation (1). It is taken as the distance derived from. In the embodiment, it is a distance of 16L.

Transfer material (6) in the case of shifting from the 6th cycle (the number of cycles equal to the number of transfers N within the distance between the transfer surfaces) to the 7th cycle (the number of transfers possible within the distance between the transfer surfaces N+1) The return distance (R1) by stepback of is the distance derived from Equation (2). In the embodiment, it is a distance of 4L.

According to the transfer device 1 of the embodiment, all unused areas of the transfer material 6 generated at the first cycle can be used for transfer at the sixth cycle.

Therefore, the transfer material 6 can be effectively used without wasting it.

In the above description, since the distance (M) between the transfer surfaces of the plate copper 20 is 6L, the number of transfers N is 6 at the distance between the transfer surfaces, but if N is changed according to the values of M and L, return as follows. The distance R1 can be determined.

When a natural number (a positive integer) is defined as k and the transfer period is defined as P, the return distance (R1) by stepback at the P-th period is the previous equation when P satisfies the following equation (3). It is the distance derived from (2), and if the equation (3) is not satisfied, it is the distance derived from the previous equation (1).

The case where P satisfies the formula (3) is a case where the transfer period is an integer multiple of N, and the case where P is not satisfied is the case where the transfer period is not an integer multiple of N.

A comparison of the number of step-backs of the transfer material 6 by the transfer device 1 of the embodiment and the step-back of the transfer material 106 by the transfer device developed by the present inventors is as follows.

In the transfer device 1 of the embodiment, the transfer material 6 is stepped back every cycle in which the plate copper 20 is rotated a plurality of times. Since the transfer material 106 is stepped back, the number of step-backs of the transfer materials 6 and 106 is smaller in the transfer apparatus 1 of the embodiment.

Therefore, by reducing the number of stepbacks of the transfer material 6, the effect of the rotational inertia force acting on the stepback rollers 33 and 40 during deceleration after transfer, acceleration before transfer, acceleration during stepback and deceleration is affected. The transfer material is reduced and the movement of the transfer material 6 becomes unstable due to the unstable rotational speed control and stop position control of the step back rollers 33 and 40 due to the rotational inertia of the step back rollers 33 and 40. The conveyance of (6) can be stabilized. In addition, the influence of the inertial force acting on the transfer material 6 at the time of deceleration after transfer, acceleration before transfer, acceleration during stepback, and deceleration during deceleration can be reduced, and the transfer of the transfer material 6 can be stabilized. Product yield can be improved by these.

The transfer state of the transfer material 6 in the transfer device 1 of the embodiment, the transfer state of the substrate 7 and the transfer state of the transfer material 106 in the transfer device developed by the present inventors, etc., When the transfer state of the transfer receiving material 107 is compared and displayed in the drawing, it becomes as shown in FIG. 6.

6 is a graph comparing the conveyance states of the transfer material and the object to be transferred, the horizontal axis represents the number of rotations of the plate movement, and the vertical axis represents the transfer distance of the transfer material and the object to be transferred, the distance required for transfer of the transfer surface 22 It represents the normalized value divided by (L). That is, 1 division is L. The change in the negative direction with respect to the vertical axis represents the conveyance in the reverse direction by the stepback.

The transfer state of the substrate 7 in the transfer apparatus 1 of the embodiment and the substrate 107 in the transfer apparatus developed by the present inventors is indicated by the same solid line X, and the transfer apparatus of the embodiment The transfer target material 7 in (1) and the transfer target material 107 in the transfer device developed by the present inventor, etc. are conveyed in the same manner, and a stepback is performed every one rotation of the plate movement to perform a step-back to the transfer device 7 , 107), it can be seen that the position of the region to be transferred is controlled.

The transfer state of the transfer material 6 in the transfer device 1 of the embodiment is indicated by a broken line Y, and a step back is performed every three rotations (one cycle) of the plate copper 20 to transfer the transfer material 6. You can see that you are controlling the area to be used.

The transfer state of the transfer material 106 in the transfer device developed by the inventors and the like is indicated by a dashed-dotted line Z, and the area used for transfer of the transfer material 106 by performing a step back every one rotation of the plate copper 100 You can see that it is controlling.

As described above, since the vertical axis is the conveying distance and the change in the negative direction is the stepback, the return distance R1 of the transfer material 6 and the return distance R10 of the transfer material 106 are negatively changing. Since it corresponds to the absolute value of the distance of, the return distance R1 of the transfer material 6 in the transfer device 1 of the embodiment is a distance of 16 L, and the transfer material in the transfer device developed by the present inventors ( It can be seen that the return distance (R10) of 106) is a distance of 4L.

And it was confirmed that the transfer material 106 in the transfer device developed by the present inventors and the like performs three step-backs while the transfer material 6 in the transfer device 1 of the embodiment is stepped back once. I can.

In addition, the transfer distance r1 conveyed in the forward direction when the plate copper 20 of the substrate 7 to be transferred in one rotation in the transfer device 1 of the embodiment is 5L, and the transfer device developed by the present inventors, etc. The transfer distance r1 conveyed in the forward direction when the plate copper 100 of the transfer target material 107 rotates is also 5L, and the conveying distance r1 conveyed in the forward direction of both is the same.

As described above, while the transfer material 6 in the transfer device 1 of the embodiment is stepped back once, the transfer material 106 in the transfer device developed by the present inventors or the like performs three step-backs. Therefore, in the transfer operation of the transfer material 6 in the transfer device 1 of the embodiment, the transfer distance R conveyed in the forward direction is a distance of 17 L, and in the transfer device developed by the present inventors, etc. When the transfer material 106 is transferred, the conveying distance R conveyed in the forward direction is 5L, so the conveying distance R conveyed in the forward direction is different.

In addition, it can be seen from the broken line Y in FIG. 6 that the greater the number of rotations S of the plate copper 20 in one cycle, the less the number of stepbacks of the transfer material 6 is.

The number of rotations S in one cycle of the plate copper 20 can be arbitrarily set, but the maximum value is the distance between the transfer surfaces (M) (the outer circumferential length of the plate copper 20) and the stepback rollers 33 and 40 are driven to rotate. It is a value determined by the characteristics of a driving motor (not shown) to be controlled.

In this embodiment, the maximum number of rotations S in one cycle of the plate copper 20 is used, and the number of stepbacks of the transfer material 6 is minimized.

A method of controlling the transfer device 1 of the embodiment will be described based on the flowchart shown in FIG. 7.

In the control unit 5 of the transfer device, parameters necessary for transfer such as L, M, S, etc. and parameters used in ordinary transfer devices and printing devices, such as conveyance speed, are input. Step 1 (S1).

Select the start of the transfer operation. Step 2 (S2).

Depending on the entered parameters, settings such as return distance (R1) ((M×(S-1)+α+β), (α+β)) are performed, and the transfer material (6) and the object to be transferred (7) Start the return of. At this time, the variable i for counting the number of transfer cycles is set to 0, and the variable j for counting the number of rotations (the number of transfers) of the plate copper 20 is set to 0 (i=0, j=0). Step 3 (S3).

The transfer material 6 and the substrate 7 to be transferred are synchronously conveyed at a constant transfer speed, and the transfer of the plate copper 20 for one rotation is performed. At this time, 1 is added to the variable j that counts the number of rotations of the plate copper 20 (j=j+1). Step 4 (S4).

The transfer target material 7 is step-backed every one rotation of the plate copper 20. Step 5 (S5).

It is determined whether the variable j for counting the number of rotations of the plate copper 20 is (j = S), that is, the transfer for one cycle has been completed, and the processing of steps 4 and 5 is repeated until the condition is satisfied. Step 6 (S6).

When the condition of j=S is satisfied and the transfer for one cycle is completed, the variable j is returned to 0 (j=0). That is, the count of the number of rotations of the plate copper 20 is reset. At the same time, 1 is added to the variable i that counts the number of transfer cycles (i=i+1). Step 7 (S7).

After one cycle of transfer, the presence or absence of an unused area not used for transfer is checked under the condition of i=N, and the stepback setting (return distance R1) of the transfer material 6 is determined. Step 8 (S8).

If the condition of i=N is not satisfied, the return distance (R1) is calculated as the distance derived from equation (1) (M×(S-1)+α+β) because there is an unused area within the range that has been used. Then, the transfer material 6 is stepped back. Step 9 (S9).

If the condition of i=N is satisfied, all unused areas within the used range are used for transfer, so the return distance (R1) is the distance (α+β) derived from Equation (2) and transfer material (6). ) To step back. Step 10 (S10).

At the same time, the variable i is returned to 0 (i=0). That is, the count of the number of transfer cycles is reset. Step 11 (S11).

By repeatedly performing the processing of step 4 (S4) to step 11 (S11), an unused area generated in the transfer material 6 by intermittent conveyance (conveyance including stepback) is used for transfer.

In addition, the control of the end of transfer is a known control that is terminated according to a condition designated for the control unit 5 in step 1 or a stop operation by an operator of the transfer device, such as a normal transfer device or a printing device, and thus is omitted from the flowchart.

As is clear from the above description, the transfer device 1 of the embodiment can reduce the number of stepbacks of the transfer material 6 compared to the transfer device developed by the inventors and the like.

In the embodiment, it has been described that the distance L required for transfer of the transfer surface 22 and the number of rotations S in one cycle of the plate copper 20 are input to the control unit 5, but in addition to these, one rotation of the plate copper 20 The length C of the transfer target material 7 produced by the transfer is input into the control unit 5.

The length C of the transfer target material 7 produced by one rotation of the plate copper 20 is determined according to the design of the product to be produced. The value that the length C can take is in the range of 127.0 mm to 355.6 mm, and the upper and lower limits are determined according to the length of the embossed plate 25 of the plate copper 20.

The distance L required for transferring the transfer surface 22 is input according to the pattern to be transferred. The distance (L) can be set to a value ranging from 5mm to 355.6mm (the maximum value of C).

Since the length C is the length of the transferred substrate 7 produced by one rotation of the plate copper 20, the length C is equal to or greater than the distance L required for transfer of the transfer surface 22.

Therefore, since L needs to satisfy C≥L, the maximum settable value of L is the maximum value of C.

Further, the distance M between the transfer surfaces is the outer circumferential length of the plate copper 20. In the embodiment, since the plate copper 20 is not replaced, M becomes a specific value depending on the configuration of the transfer device 1.

As described above, in the present invention, the maximum value of the number of rotations S in one cycle of the plate copper 20 is the distance M between the transfer surfaces (the outer circumferential length of the plate copper 20) and the step-back rollers 33 and 40. It is determined according to the characteristics of the drive motor that controls the rotational drive. In the embodiment, the value of S can be set up to 20.

In the embodiment, when the values of L, S, and C input to the control unit 5 are outside the above setting range and when L>C, the transferable condition is not satisfied. If the transferable condition is not satisfied, the control unit 5 determines as an error and does not perform the transfer operation. At the same time, errors are indicated by means not shown.

The upper and lower limits of the values of L, S, and C shown here are examples. The upper and lower limits of the values of L, S, and C are determined according to the configuration of the transfer device 1 such as the outer circumferential length of the plate copper 20.

In addition, the return distance by stepback of the transferred object 7 is determined according to the length C of the transferred object 7 produced by one rotation of the plate copper 20.

1: transfer device 2: transfer unit
3: Transfer material supply unit 4: Transfer material recovery unit
5: control unit 6: transfer member
7: Receiving entry 20: Pandong
21: pressure copper 25: embossed plate
100: Pandong 101: Pandong
103: transfer surface 104: emboss plate
105: non-inclined surface (arrow) a: forward direction
(Arrow) b: reverse

Claims (8)

A transfer unit, a transfer material transfer unit for transferring a transfer material to the transfer unit, a transfer source material transfer unit for transferring a transfer material to the transfer unit, and a control unit,
The transfer portion has a platen and a plate copper, the platen has a transfer surface in contact with the circumferential surface of the platen and a non-transfer surface not in contact with the circumferential surface of the platen,
The transfer material conveying unit has a step back roller, and conveys the transfer material in a forward direction by rotating the step back roller forward, and conveys the transfer material in a reverse direction by rotating the step back roller,
The transfer device material transfer unit has a step back roller, and forwardly rotates the step back roller to transfer the transfer target material in a forward direction, and rotates the step back roller reversely to transfer the transfer target material to the reverse direction,
The transfer material to the transfer surface of the plate copper and the circumferential surface of the press copper by rotating the step back roller of the transfer material transfer part and the step back roller of the transfer material transfer part in a forward direction, and conveying the transfer material and the transfer base material in a forward direction. Is transferred to the substrate to be transferred,
By rotating the step-back roller of the transfer material transfer part and the step-back roller of the transfer material transfer part, the transfer material and the transfer material are reversely rotated through the gap between the non-transferred surface of the plate copper and the circumferential surface of the plate copper. In the transfer device for conveying and step back,
The plate copper of the transfer part has only one transfer surface, and transfers once with one rotation of the plate copper,
The control unit continuously repeats a transfer operation of one cycle to perform a plurality of transfers by rotating the plate copper a plurality of times in a state in which the transfer material is continuously conveyed in the forward direction, and transfers one cycle. Is finished, and when the transfer of the next cycle is performed, the area of the transfer material used for the first transfer of the next cycle is the area adjacent to the upstream side of the transfer direction of the area used for the first transfer in the previous cycle. A transfer apparatus, characterized in that controlling a stepback for conveying the transfer material in a reverse direction as possible. The method according to claim 1,
The control unit determines whether or not there is an area available for transfer within the range in which the transfer material used for transfer until the previous cycle has been used, when transfer of one cycle is finished and transfer of the next cycle is performed. In this case, a stepback for conveying the transfer material in the reverse direction so that the area of the transfer material used for the first transfer of the next cycle becomes an area adjacent to the upstream side of the transfer direction of the area used for the first transfer in the previous cycle. And, if not present, the transfer material is reversed so that the area of the transfer material used for the first transfer of the next cycle becomes an area adjacent to the upstream side of the transfer direction of the area used for the last transfer in the previous cycle. A transfer device that controls the stepback conveyed by the user. The method according to claim 2,
When the number of repeated cycles coincides with the number of transfers possible within the distance between the transfer surfaces corresponding to the outer circumferential length of the plate movement, the control unit determines that there is no area available for transfer, and if not, the transfer is performed. A transfer device that determines that there is a usable area. The method according to claim 1,
The control unit is a transfer device for controlling a stepback for conveying the substrate to be transferred in a reverse direction every one rotation of the plate copper. A transfer unit consisting of a plate and a presser with only one transfer surface, and transfers the transfer material to the object to be transferred;
A step-back roller that conveys the transfer material in the forward and reverse directions by forward and reverse rotation,
In the transfer method of a transfer apparatus having a step-back roller for transferring a transfer target material in a forward direction and a reverse direction by forward rotation and reverse rotation,
In a state in which the transfer material is continuously conveyed in the forward direction, the plate copper is rotated a plurality of times to perform a plurality of transfers as one cycle, and a transfer method in which the transfer is transferred by repeating the one cycle a plurality of times,
Whenever the transfer operation by one rotation of the plate copper is finished, it is determined whether the number of rotations of the plate copper coincides with the number of rotations in one cycle of the plate copper, and if not, the transfer material is continuously conveyed in the forward direction. , The transfer of the cycle is continued, and if they match, the stepback roller is rotated in a reverse direction to convey the transfer material in the reverse direction to step back, and the transfer of the cycle is terminated to perform the transfer of the next cycle,
The distance at which the transfer material is conveyed in the reverse direction is a distance in which the area of the transfer material used for the first transfer of the next cycle is an area adjacent to the upstream side of the transfer direction of the area used for the first transfer in the previous cycle. Transfer method of a transfer device, characterized in that. The method of claim 5,
When the transfer of one cycle is completed and the transfer of the next cycle is performed, it is determined whether or not there is an area usable for transfer within the range of use of the transfer material used for transfer until the previous cycle,
If it is determined that there is a reverse rotation of the stepback roller, the transfer material is transferred in the reverse direction to step back, and the distance transferred in the reverse direction is used for the first transfer of the next cycle, and the area of the transfer material used for the first transfer of the next cycle is the previous cycle. The distance to be the area adjacent to the upstream side in the conveying direction of the area used for the first transfer in
If it is determined that there is no, the transfer material area used for the first transfer of the next cycle is the previous cycle by reversing the stepback roller to transfer the transfer material in the reverse direction and step back, and the distance transferred in the reverse direction is used for the first transfer of the next cycle. A transfer method of a transfer apparatus with a distance that becomes an area adjacent to an upstream side in the conveying direction of the area used for the last transfer in The method of claim 6,
When the number of repeated cycles coincides with the number of transfers possible within the distance between the transfer surfaces corresponding to the outer circumferential length of the plate copper, it is determined that there is no area usable for the transfer, and if not, the area usable for the transfer The transfer method of the transfer device that is determined to be there. The method of claim 5,
A transfer method of a transfer device in which the stepback roller is rotated in a reverse direction for each rotation of the plate copper to convey the object to be transferred in a reverse direction to step back.

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