JP5371018B2 - Label forming device for in-mold label forming - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label forming device which corrects label part misregistration for a label forming position during label sheet transfer by a stretch force by a wind-up roll even if the label sheet is thin, performs positioning with high positional precision, and forms a label with high precision by preventing wrinkles from being generated. <P>SOLUTION: When a scrap sheet 41a in which a label is cut in a label forming area is wound up, the scrap sheet 41a supported by a support body of rotation on the feed-out side 35 is supported so that a feed rate of an intermediate part in a transfer perpendicular direction is more than an end in the transfer perpendicular direction, to restrict a meander feed and an outbreak of wrinkles. When the end in the transfer perpendicular direction of the label sheet is gripped to transfer it to a label forming area 23, each of grip transfer means 48 is moved to an opposite direction of a misregistration direction based on a meander direction detected by a meander direction detecting means to correct a transfer direction of the label sheet. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  In the present invention, a large number of labels are printed in in-mold label molding in which a synthetic resin is injected between molds in a state where the labels are mounted in the molds to form a resin molded product in which the labels are integrated on the surface. Label forming apparatus for in-mold label forming that forms a label from a label sheet, more specifically, when a label sheet derived from a sheet roll is transferred to a label forming position, wrinkles are generated or the position of the label sheet is shifted. The present invention relates to a label forming apparatus for forming an in-mold label having a transfer correction function for preventing the above.

  For example, a manufacturing apparatus shown in Patent Document 1 is known regarding in-mold label molding for molding a resin molded product in which a label is integrated on the surface. The manufacturing apparatus supplies a roll-shaped label material on which a plurality of labels are printed to a punching forming unit, punches and forms according to the design of the label, and holds the punched label with a pseudo core. Then, the label is inserted into and pasted into the mold cavity with the pseudo core, and then injection molded in a state where the core of the mold is inserted into the cavity to produce an in-mold label molded product.

In the manufacturing apparatus, as means for transferring the roll-shaped label material to the punching forming section, a rotation support roll is disposed above and below the punching forming section, and a plurality of labels are provided in the label transfer direction and the transfer orthogonal direction. The label sheet derived from the sheet roll on which the printed label sheet is wound is passed so as to be taken up by the take-up roll after passing through the punching forming portion between the rotation support rolls.

The winding roll is rotationally driven and controlled so that the label portion of the label sheet is positioned in the punching forming portion and the scrap sheet from which the label has been punched is taken up.

However, since the above-mentioned label sheet itself is extremely thin with a thickness of 20 micrometers to 80 micrometers, when the label sheet is transported by the transport means, the label sheet is caused by the rotational force (tensile force) of the take-up roll. However, it is difficult to position the label portion printed with respect to the punching forming portion with high positional accuracy and the wrinkle is generated on the label sheet.

If the label part of the label sheet is not accurately positioned with respect to the punching formation part, a label having a predetermined shape cannot be formed from the label sheet, which causes the in-mold label molded product to become defective. Yes.

In addition, if a label is formed in a state where wrinkles are generated on the label sheet in the punching forming section, the shape outside the label formed by the overlap of the label sheets cannot be made constant, and the in-mold label molded product is not manufactured in the same manner as described above. It is a cause of defective products.

In particular, since the scrap sheet from which the label has been punched by the take-up roll is wound up and the next label portion of the label sheet is transferred to the punching forming section, the label is cut at the place where the label has been punched and the place where the label has not been punched. A difference occurs in the amount of extension of the sheet, and the meandering is sufficient, so that wrinkles are easily generated, and it is extremely difficult to position the label portion of the label sheet with high accuracy with respect to the punching forming portion.

JP 2010-253810 A

The problem to be solved is that when the thin label sheet is transported, the label sheet expands due to the pulling force of the take-up roll, and the label portion is surely positioned with respect to the label forming position, and wrinkles are generated. Is difficult to prevent, and the defective rate of in-mold label molded products is high. In addition, since the label sheet from which the label is punched by the winding roll is wound up and the label portion of the label sheet is transferred to the punching forming section, the label sheet of the portion where the label is punched and the portion where the label is not punched A difference in the amount of extension occurs, making it easy to meander, making it extremely difficult to position the label portion of the label sheet with high accuracy with respect to the punching formation part, and increasing the defective rate of in-mold label molded products. is there.

  According to the present invention, a label sheet derived from a sheet roll in which a number of label portions are printed in the column direction and the row direction at predetermined intervals in the transfer direction and the transfer orthogonal direction is wound around the winding operation. In an in-mold label forming label forming apparatus for sequentially transferring to a label forming area and forming an in-mold label forming label by means of a label forming means so as to rotationally support the label sheet transferred on the carry-out side of the label forming area An unloading-side support rotating body that has an axis in the direction perpendicular to the transfer and has an intermediate portion in the direction perpendicular to the direction perpendicular to the direction perpendicular to the direction of transfer, and a label on the upper side in the transfer direction of the label formation region It is provided at each end of the sheet in the direction perpendicular to the transport direction, and is connected to the winding operation of the label sheet so that the end of the label sheet in the direction perpendicular to the transport direction is gripped. And a gripping transfer means that moves in the label sheet transfer direction and moves to the label forming area, and extends in the transfer direction at the end of the label forming area in the transfer direction at the upper end of the label sheet transfer direction. And a meandering direction detecting means for detecting the meandering direction of the label sheet with respect to the direction perpendicular to the transport direction, and winding up the scrap sheet with the label cut in the label forming area. In addition, the scrap sheet supported by the carry-out side support rotating body is supported so that the feed amount of the intermediate portion in the transfer orthogonal direction is increased with respect to the end portion in the transfer orthogonal direction, and the meandering feed and wrinkle generation are regulated and the label sheet The gripping and transporting means are defined as meandering directions on the basis of the meandering direction detected by the meandering direction detecting means when gripping and transporting the end of the transporting orthogonal direction to the label forming area. The most important feature that was correctable transfer direction of the label sheet by moving the pair direction.

  Even if the label sheet is thin, when the label sheet is transported by the pulling force of the take-up roll, the positional deviation of the label portion with respect to the label forming position can be corrected and positioned with high positional accuracy. The label can be formed with high accuracy by preventing the occurrence of. In addition, even if there is a difference in the amount of extension of the label sheet between the label location on the label sheet and the location where the label is punched, the label sheet is prevented from being meandered or wrinkled, The label shape formed by positioning the label portion of the label sheet with high accuracy with respect to the punching forming portion can be made constant.

It is a perspective view which shows the outline of the label formation apparatus for in-mold label shaping | molding. It is a side view from the arrow A direction of FIG. It is a top view of FIG. It is explanatory drawing which shows the grip conveyance means of a label sheet. It is explanatory drawing which shows the meandering direction detection means of a label sheet. It is explanatory drawing which shows the transfer state of the label sheet by a holding member. It is explanatory drawing which shows the fusion | melting cutting state of the label by a laser beam. It is explanatory drawing which shows a meandering detection state. It is explanatory drawing which shows a meandering detection state.

When winding the scrap sheet whose label has been cut in the label forming area, the amount of feed of the intermediate portion in the transport orthogonal direction is increased with respect to the end portion in the transport orthogonal direction with respect to the scrap sheet supported by the carry-out support rotating body. Each of the grips is controlled on the basis of the meandering direction detected by the meandering direction detecting means when gripping and feeding the end of the label sheet in the direction perpendicular to the transport direction and transporting it to the label forming area. In the best mode, the transporting means is moved in the direction opposite to the meandering direction so that the transporting direction of the label sheet can be corrected.

The present invention will be described below with reference to the drawings showing examples.
As shown in FIGS. 1 to 5, on the upper surface of the main body 3 of the label forming apparatus 1 for forming an in-mold label according to the present invention, the base portion of the mounting board 5 whose side surface from the direction of arrow A in FIG. Is fixed, and a space through which a label sheet 41 (described later) can pass is formed between the upper surface and the tip of the main body 3.

  A pair of guide rails 7 extending in a direction (also referred to as a left-right direction) orthogonal to the transfer direction of the label sheet 41 is fixed to the upper surface of the mounting board 5, and the first movable base is attached to the guide rails 7. 9 is supported so as to reciprocate in the left-right direction. Further, a first electric motor 11 such as a servo motor capable of numerical control is connected to one end of the upper surface of the mounting plate 5 corresponding to the space between the guide rails 7, and a first drive having an axis in the horizontal direction shown in the drawing. A shaft end portion of a first feed screw (not shown) constituting the member is rotatably supported by a shaft, and the first feed screw is a first nut (not shown) provided on the first movable base 9. ). The first movable base 9 is reciprocated in the left-right direction as the first electric motor 11 is driven.

  A pair of guide rails 15 extending in a direction (also referred to as a front-rear direction) that coincides with the transfer direction is fixed to the first movable ninth upper surface, and a second movable base 17 is attached to the guide rails 15. Is supported so as to reciprocate in the front-rear direction. A second electric motor 19 such as a servo motor capable of numerical control is connected to one end of the upper surface of the second movable base 17 corresponding to the space between the guide rails 15, and a second drive having an axial line in the illustrated front-rear direction. A shaft end portion of a second feed screw (not shown) constituting the member is rotatably supported by the shaft, and the second feed screw is a second nut (not shown) provided on the second movable base 17. ). The second movable base 17 is reciprocated in the front-rear direction as the second electric motor 19 is driven.

  The second movable table 17 is controlled to move in the two-dimensional direction of the left-right direction and the front-rear direction as the first and second electric motors 11 and 19 are driven.

  At the lower end of the second movable table 17 in the moving direction, four laser beam output heads 23 whose output shafts are directed in the vertical direction are spaced apart from each other in the direction perpendicular to the transfer direction and lower in the transfer direction. It protrudes to the side. Each laser beam output head 23 is guided with a laser beam output from a laser beam oscillation device 25 fixed on the second movable table 17 through a light guide tube 27, and each laser beam output head 23 is Laser light that converges to a required beam diameter is output to the upper surface of the label forming region in the main body 3.

  A label forming area is set on the upper surface of the main body 3 corresponding to the moving area of each laser light output head 23, and the upper surface of the main body 3 in the label forming area is slightly larger than the outline of the label to be cut and formed. Four recesses 29 having a shape are provided at a predetermined interval in the transfer orthogonal direction.

In each recess 29, a label support plate 30 that matches the outer shape of the label is attached at a height that matches the upper surface of the main body 3 and with a slight gap between the periphery of the recess 29. A number of suction holes 30 a are formed in the label support plate 30. Each of the recesses 29 is colored in black at the bottom, and prevents the laser light that has passed through the label sheet 41 from being absorbed and reflected when the label is formed. Further, a suction hole (not shown) is formed on the bottom surface of each recess 29 and a suction duct 31 connected to a negative pressure generating device (not shown) is connected. After forming the label, the label portion 41b of the label sheet 41 located on the support plate 30 is held by sucking the formed label with negative pressure and melted and carbonized by the heat of the laser beam when forming the label. The carbonized powder of the label sheet 41 dropped into the place 29 is sucked and collected.

  The main body 3 corresponding to the upper side and the lower side of the label forming region in the transport direction has an axis in the transport orthogonal direction and has an axial length corresponding to the width in the direction perpendicular to the transport direction of the label sheet. And the carrying-out-side support rotating body 35 is rotatable, and is supported so that the support outer peripheral surface coincides with the upper surface of the main body 3. The carry-in side support rotator 33 and the carry-out side support rotator 35 are constituted by crown rolls in which an axially intermediate portion is formed in a taper shape having a large diameter with respect to both axial ends.

The main body 3 is provided with a sheet supply unit 37 for the label sheet 41 and a sheet take-up unit 39 for collecting the scrap sheet 41a from which the label has been cut. In the sheet supply unit 37, a sheet roll 43 around which the label sheet 41 is wound is provided so as to be rotatable and detachable. The label sheet 41 led out from the sheet roll 43 includes a turning roll and a tension roll (both shown in FIG. (Not shown) is passed through the carry-in support rotator 33 and the label forming region so as to be supported by the carry-out support rotator 35.
In the sheet winding unit 39, a winding roll 45 is detachably provided on a rotating shaft (not shown) connected to a third electric motor (not shown) such as a numerically controllable servo motor. The take-up roll 45 winds up and collects the scrap sheet 41a returned through the carry-out side support rotator 35, the turning roll, and the tension roll (all not shown).

  The label sheet 41 is a thin synthetic resin sheet, paper sheet, or the like, and four label portions 41b are spaced apart from each other in the direction perpendicular to the transport direction and spaced apart from each other in the transport direction. It is printed. Further, one detected portion 41c extending in the transport direction is printed in advance on one end portion of the label sheet 41 in the transport orthogonal direction.

  Further, a meandering direction detector 47 as meandering direction detecting means is provided on the upper side of the carrying-side support rotating body 33 in the transporting direction so as to face the detected portion 41c printed on the label sheet 41 to be transported. . The meandering direction detector 47 includes two sets of light emitting units and light receiving units 47a and 47b arranged in the transfer orthogonal direction with an interval corresponding to the transfer orthogonal direction width of the detected portion 41c. The meandering direction detector 47 is arranged such that when the label sheet 41 is transferred in a normal state, the respective light emitting units and light receiving units 47a and 47b are in the detection state of the detected unit 41c.

  In addition, as a method for detecting the detected portion 41c by the meandering direction detector 47, in addition to the above-described method, among the two sets of the light emitting portion and the light receiving portions 47a and 47b constituting the meandering direction detector 47, for example, a normal transfer state Then, one light-emitting part and the light-receiving part 47a are arranged so as to always detect the detected part 41c, and the other light-emitting part and the light-receiving part 47b are slightly displaced from the detected part 41c in the transport orthogonal direction to detect the detected part 41c. The label sheet 41 meanders toward the other light emitting part and the light receiving part 47b with the transfer, and the one light emitting part and the light receiving part 47a are brought into the non-detected state of the detected part 41c. When the other light emitting part and the light receiving part 47b transition to the detection state of the detected part 41c, the label sheet 41 meanders to the other light emitting part and light receiving part side 47b. And it may detect that the light receiving portion 47a · 47b label sheet 41 upon transition to the non-detecting state of the detector 41c is meandering to one of the light emitting portion and the light receiving portion 47a side.

  In addition, the light emitting unit and the light receiving unit of the meandering direction detector 47 include three sets of the light emitting unit and the light receiving unit, the light emitting unit and the light receiving unit located in the center at the detected unit 41c, and the light emitting units and the light receiving units on both sides. Is shifted to the outside in the direction perpendicular to the transport direction of the detected portion 41c, and the meandering direction based on the detection state of the detected portion 41c by the light emitting portion and the light receiving portion located on both sides with respect to the light emitting portion and the light receiving portion located in the center May be detected.

  When the label sheet 41 is transferred in a normal state, the meandering direction detector 47 is in a detection state in which light output from each light emitting unit is absorbed by the detected portion 41c, but the label sheet 41 is transferred. Meandering, for example, the light emitting part and the light receiving part on the inner side in the transfer orthogonal direction are in the detection state of the detected part 41c, and the light emitting part and the light receiving part on the outer side in the transfer orthogonal direction are in the non-detection state of the detected part 41c. When the transition is made, it is detected that the label sheet 41 is meanderingly transferred to the light emitting unit and the light receiving unit in the detection state of the detected portion 41c.

  On both sides of the main body 3 corresponding to the label forming area, gripping and conveying means 48 are provided in a relative manner. Each gripping transport means 48 has a first traveling body 51 supported so as to move in the transport direction by a first travel frame 49 having a length in the transport direction corresponding to at least the width of the label in the transport direction, and has an axis in the transport direction. Then, the shaft end portion is rotatably supported by the first traveling frame 49 and is connected to a third electric motor 53 such as a servo motor capable of numerical control at one end portion to be engaged with the nut of the first traveling body 51. From the length of the third feed screw (not shown) to be combined and the length of the first traveling body 51 extending to the transport orthogonal direction and reaching each end of the label sheet 41 located in the label forming region in the transport orthogonal direction A second traveling body 59 that is supported by the second traveling frame 57 so as to move in the transfer orthogonal direction, and an axial end that is axially supported by the second traveling frame 57 so as to be rotatable. Servo motor with numerical control at one end A fourth feed screw (not shown) that is connected to a fourth electric motor 61 such as a clutch and meshes with a nut of the second traveling body 59, and a gripping member that is provided to the second traveling body 59 via a stay 67. 65.

Each gripping member 65 has a fixed grip plate 65a whose longitudinal direction has a width in the transport direction of at least one label, and a length that matches the fixed grip plate 65a, and is vertically oriented with respect to the grip surface of the fixed grip plate 65a. The movable gripping plate 65b is provided so as to move toward and away from the head, and an operating member 65c such as an electromagnetic solenoid or an air cylinder that enables the movable gripping plate 65b to be moved up and down.

  Elevating members 69 such as air cylinders and electromagnetic solenoids each having an axis in the vertical direction are provided on both sides in the direction perpendicular to the transfer direction of the main body 3 corresponding to the lower side in the transfer direction of the carry-in side support rotating body 33. Both ends of the pressing plate 71 extending in the direction orthogonal to the transfer are attached to the shaft 69.

Further, on both sides of the main body 3 in the transfer orthogonal direction corresponding to the transfer direction upper side of the carry-out side support rotating body 33, elevating members 73 such as air cylinders and electromagnetic solenoids having axes in the vertical direction are respectively provided. Both ends of a pressing plate 75 extending in the transfer orthogonal direction are attached to the shaft of the elevating member 73.

These pressing plates 71 and 75 are raised by the operation of the elevating members 69 and 73 during the transfer of the label sheet 41 to allow the label sheet 41 to pass therethrough, while the label sheet 41 is transferred to the label forming area and stopped. At this time, the label sheet 41 is pressed and held against the upper surface of the main body 3 by the backward movement of the elevating members 69 and 73 to prevent displacement.

Next, the label forming action and the label sheet 41 transferring action by the in-mold label forming label forming apparatus 1 configured as described above will be described.
First, the operation of cutting the label from the label sheet 41 will be described. After the label sheet 41 led out from the label supply unit 37 passes between the upper surface of the main body 3 and the tip of the mounting board 5, the carrying-side support rotating body is used. 33, between the upper surface of the main body 3 and the pressure plate 71 on the carry-in side, between the label forming region on the upper surface of the main body 3, between the upper surface of the main body 3 and the pressure plate 75 on the carry-out side, and through the carry-out side support rotating body 35 39 so that it is wound up by 39.

  After driving and controlling the fourth electric motor 61 in the above state and moving the gripping member 65 to the transfer orthogonal direction end portion side of the label sheet 41, the operation member 65c is operated to grip the transfer orthogonal direction end portion, Linked with the rotational drive of the label winding unit 39, the third electric motor 53 is driven and controlled, the gripping member 65 is moved in the transfer direction, and the label sheet 41 is transferred in the transfer orthogonal direction to correspond to each label portion 41b. It is located in each recess 29. (See Figure 6)

  In addition, after each label location 41b of the label sheet 41 is transferred to the corresponding recess 29 by the above operation, the operation member 65c is moved backward by stopping the rotation of the label take-up portion 39 and moved by the gripping member 65. After releasing the grip of the end of the label sheet 41 in the direction perpendicular to the transfer direction, the third and fourth electric motors 53 and 61 are driven and controlled in the reverse direction to separate the grip member 65 from the end of the label sheet 41 in the direction orthogonal to the transfer direction. And move back to the standby position on the upper side in the transfer direction.

  Next, in the above state, the first and second electric motors 11 and 19 are driven and controlled to move the first movable table 9 in the transfer direction, and the second movable table 17 is moved in the transfer orthogonal direction to output each laser beam. The label is melted and cut from the label sheet 41 by moving the head 23 in a two-dimensional direction and outputting laser light along the outer shape of the label at each label location 41b. (See Figure 7)

  At the time of cutting the label with the laser beam, the laser beam output from each laser beam output head 23 and cut the label sheet 41 is absorbed by the black color in the respective recesses 29. The label sheet 41 is prevented from being remelted by the reflected laser light from the. As a result, the label can be cut from the label sheet 41 with high accuracy. Further, the molten scrap of the label sheet 41 melted and carbonized by the heat of the laser light at the time of cutting by the laser light is dropped into the recess 29 and then sucked under a negative pressure from the suction hole 29a and collected.

  The label cut and formed from the label sheet 41 by the above-described action is taken out of the label forming area by being negatively adsorbed by the holding member of the label taking-out means provided above the label forming area and then removed from the label forming area. It is delivered to a pseudo core (both not shown) for mounting the label in the mold.

  After the cutting operation described above, the fourth electric motor 61 is driven again to move the gripping member 65 toward the end of the label sheet 41 in the transport orthogonal direction, and then the operating member 65c is operated to move the end of the transport orthogonal direction. After gripping the portion, the third electric motor 53 is driven and controlled in conjunction with the rotational drive of the label winder 39 to move the gripping member 65 in the transport direction and wind up the scrap sheet 41a from which the label has been removed. After the label sheet 41 is transferred, each label location 41b to be cut next is positioned in the corresponding recess 29.

Next, a wrinkle generation preventing action and a positional deviation correcting action when the label sheet 41 is transferred will be described.
As described above, in the scrap sheet 41a after the label is cut from the label sheet 41, an opening is formed at a place where the label is cut and removed so as to be non-continuous with respect to the transfer direction and the non-cutting place. In this case, it is in a continuous state with respect to the transfer direction. For this reason, when the label sheet 41 is transferred while winding up the scrap sheet 41a by rotating the take-up roll, there is a difference in the amount of sheet expansion between the cut portion and the non-cut portion, and the label sheet 41 is wrinkled. It becomes easy to meander at the time of transfer, and it becomes difficult to accurately position each label portion 41b to be cut next with respect to each recess 29.

In this embodiment, the carry-in side support rotator 33 and the carry-out side support rotator 35 provided respectively on the carry-in side and the carry-out side of the label forming region are tapered with an axial middle portion having a large diameter with respect to the axial end. Because of this, the peripheral speed of the axial intermediate part is faster than the peripheral speed of the axial end, and wrinkles occur when the uncut label sheet 41 is transferred on the carry-in side. To prevent it.

On the unloading side, when the scrap sheet 41a is wound up, there is a difference in the amount of elongation between the portion where the label is cut and the portion where the label is not cut, and it becomes easy to meander. By preventing the wrinkles from occurring on the label sheet 41 by increasing the peripheral speed of the axially intermediate portion of the side support rotating body 35 with respect to the axial end portion, the meandering is corrected and the winding is performed. It can supply in the state which positioned the label location 41b of the label sheet 41 with respect to each recess 29. FIG.

Further, when the label sheet 41 is supplied to the label forming area, and therefore when the scrap sheet 41a is wound up, the label sheet 41 is transported in the transport direction while gripping the end of the label sheet 41 in the transport orthogonal direction as described above. Let During this transfer, the meandering direction detector 47 detects the detected portion 41c printed in advance on the label sheet 41 to detect the meandering state of the label sheet 41.

That is, in the normal transfer state of the label sheet 41, the pair of light emitting units and light receiving units arranged in the direction perpendicular to the transfer of the meandering direction detector 47 outputs a signal corresponding to the detection state of the detected portion 41c. Is set as follows. When the label sheet 41 is transported, the light emitting unit and the light receiving unit located on the inner side are detected while the light emitting unit and the light receiving unit located on the outside maintain the detection state of the detected unit 41c as shown in FIG. When the transition to the non-detection state of the part 41c is made, it is determined that the label sheet 41 is meandered and transferred to the outside. In addition, when the light emitting unit and the light receiving unit located on the inner side and the light receiving unit located on the outer side shown in FIG. 9 remain in the detection state of the detected unit 41c, the light emitting unit and the light receiving unit located on the outer side transition to the non-detected state of the detected unit 41c. Determines that the label sheet 41 is meandered and transferred inward.

When the control device (not shown) of the label forming apparatus 1 for in-mold label forming determines that the label sheet 41 is meandered and transferred to the outside in the above, for example, the flag is transferred to the outside and the inside to the inside. If it is determined that the sheet is meandered and transferred, the flag is set to the inside transfer.

Then, the control device refers to the meandering state set in the flag when the next label sheet 41 is carried out after cutting the label. For example, when the meandering is carried out to the outside, each gripping member 65 corresponds to the corresponding label sheet. 41. The movement amount stored in advance when gripping and transferring the end portion 41 in the direction perpendicular to the transfer direction to the inside of the second traveling body 59 on the meandering direction side and the second traveling body 59 on the opposite side to the meandering direction to the outside. The meandering transfer state is corrected by controlling to move to the normal transfer state.

Although the above-described correction operation of the meandering transfer has been described based on the example executed when the next label sheet 41 is transferred, the movement of each of the second traveling bodies 59 with respect to the transfer orthogonal direction when the meandering transfer state is detected. It is good also as a structure which controls and corrects a direction.

In the above description, the laser beam converged on the label sheet 41 that is intermittently transferred according to the width of the label in the transfer direction is output to melt and cut the required shape of the label. A plurality of pairs of punches and dies may be relatively arranged in the label forming region, and the punch may be moved with respect to the label sheet 41 transferred to the label forming region to punch and form the label.

In the above description, the label is cut from the label sheet 41 transferred in the horizontal direction on the upper surface of the main body 3. However, the label is converged with respect to the label sheet 41 transferred in the vertical direction or at an appropriate angle. Alternatively, the laser beam may be output to melt and cut, or the punch may be moved to punch and form a label.

Further, when the laser beam is output along the outer shape of the label portion of the label sheet 41 and the label is melted and cut, the number of laser light output heads 23 corresponding to each label portion is formed as described above. In addition to the configuration in which the laser light is synchronously output from each laser light output head 23 and the label sheet 41 is melted and cut, for example, one in two, one in three, etc. A configuration in which a reflection mirror is arranged, a laser beam is output to each reflection mirror so as to be scanned along the outer shape of the label portion, and the label sheet 41 is melted and cut to form a label may be employed.

In the above description, the laser beams are synchronously output from the four laser beam output heads 23 corresponding to the four label locations 41b printed in the transport orthogonal direction (row direction) of the label sheet 41 in one operation. Although an example in which four labels 44 are formed has been described, the present invention is not limited by the number of labels to be formed.

DESCRIPTION OF SYMBOLS 1 Label forming apparatus 3 for in-mold label shaping | molding 3 Main body 5 Mounting board 7 Guide rail 9 1st movable stand 11 1st electric motor 15 Guide rail 17 2nd movable stand 19 2nd electric motor 23 Laser beam output head 25 Laser beam oscillation apparatus 27 Light guide tube 29 Recess 30 Label support plate 30a Suction hole 31 Suction duct 33 Carry-in side support rotator 35 Carry-out side support rotator 37 Supply part 39 Winding part 41 Label sheet 41a Scrap sheet 41b Label part 41c Detected part 43 Sheet roll 45 Winding roll 47 Meander direction detector 48 Grasping transfer means 49 First traveling frame 51 First traveling body 53 Third electric motor 57 Second traveling frame 59 Second traveling body 61 Fourth electric motor 65 Holding member 65a Fixed Holding plate 65b Movable holding plate 65c Actuating member 67 Stay 69 Elevating member 71 Press 73 elevating member 75 pressing plate

Claims (7)

A label sheet derived from a sheet roll wound with a number of label portions printed in the column direction and row direction at a predetermined interval in the transport direction and the orthogonal direction to the label forming region in accordance with the winding operation. In the in-mold label forming label forming apparatus for sequentially transferring and forming the in-mold label forming label by the label forming means,
It is provided to rotate and support the label sheet to be transported on the unloading side of the label forming area, has an axis line in the transport orthogonal direction, and the intermediate part in the transport orthogonal direction has a large diameter with respect to the end of the transport orthogonal direction. The carried-out side support rotating body,
The label sheet is provided at the end of the label forming area on the upper side in the transport direction of the label sheet. The label sheet is linked to the winding operation to grip at least the end of the label sheet in the transport direction. Gripping transfer means for moving to the label forming area by moving in the transfer direction,
The meandering of the label sheet in the direction perpendicular to the transport direction of the label forming region is provided relative to the detected portion that is extended and printed in the transport orthogonal direction end of the label sheet to be transported. Meandering direction detecting means for detecting the direction;
When the scrap sheet whose label has been cut in the label forming area is taken up, the scrap sheet supported by the carry-out-side support rotating body is fed in the transport orthogonal direction intermediate portion with respect to the transport orthogonal direction end. Is controlled based on the meandering direction detected by the meandering direction detecting means when gripping and transporting the end of the label sheet in the orthogonal direction and transporting it to the label forming area. An in-mold label forming label forming apparatus which can correct the direction of label sheet transfer by moving each gripping transfer means in a direction opposite to the meandering direction. 2. The transport orthogonal direction intermediate portion according to claim 1, wherein the label forming region is provided on the carry-in side so as to rotate and support the label sheet to be transported, and has an axis in the transport orthogonal direction, and the transport orthogonal direction intermediate portion relative to the transport orthogonal direction end A label forming apparatus for forming an in-mold label provided with a carry-in side support rotating body formed in a large diameter. 2. The label forming means according to claim 1, wherein the label forming means is provided so as to be movable in the two-dimensional direction of the transfer direction and the transfer orthogonal direction in the label forming region, and outputs a laser beam to the label sheet transferred to the label forming region. An in-mold label forming label forming apparatus for melting and cutting a label from a label sheet. 2. The in-mold label forming label according to claim 1, wherein the label forming means includes a die and a punch that are arranged to face each other with the label sheet sandwiched in the label forming region, and the label is punched from the label sheet by the punch entering the die. Forming equipment. 2. The gripping transfer means according to claim 1, wherein the gripping transfer means extends in the transfer orthogonal direction with respect to the first traveling body movably supported by the first traveling frame extending in the transfer direction at the end of the label sheet in the transfer orthogonal direction. A label forming apparatus for forming an in-mold label provided on a second traveling body that is movably supported by a second traveling frame that is provided. The label forming apparatus for in-mold label forming according to claim 1, wherein the label forming apparatus is stretched horizontally in a label forming region of a label sheet derived from a sheet roll. The label forming apparatus for in-mold label forming according to claim 1, wherein the label forming area is stretched in a vertical direction or at an appropriate angle in a label forming region of the label sheet derived from the sheet roll.

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