JP5665170B2 - Label cutting device for in-mold label molded product, label cutting supply device, label cutting delivery device and label cutting method, label cutting supply method and label cutting delivery method - Google Patents

Description

  The present invention relates to a label cutting device, a label cutting supply device, a label cutting delivery device, a label cutting method, and a label cutting supply for an in-mold label molded product that is integrally molded by injecting a synthetic resin onto a label mounted in a mold. The present invention relates to a method and a label cutting and passing method.

  For example, as an in-mold label forming system for forming an in-mold label molded product formed by injecting a synthetic resin into a mold after mounting a label punched from a label sheet derived from a label roll into a mold. The matters shown in Document 1 are known. That is, the in-mold label forming system shown in Patent Document 1 includes a label original supply unit that supplies a label original, and a cylindrical lower mold that is located below the label original supplied from the label original supply unit. , A hollow punch that forms a label by punching the original label with the lower mold, a suction head that moves forward and backward in the punch to suck the label, and is placed under the suction head In the label winding section, the label winding transport line receives the label from the head and transports it while sucking it, and the label winding section receives the label from the label suction transport line and sucks and winds the label around the outer periphery of the label holding core. An in-mold label container is formed by injecting a synthetic resin in a state where the label holding core around which the label is wound is inserted into the mold.

  In the in-mold label forming system, the label original supplied from the label original supply unit is punched into a desired developed shape with a lower die and a punch, and then the punched label is sucked with a suction head to absorb the label. It is transferred to a transfer line, and the transferred label is wound around the outer periphery of the label holding core and supplied into the mold.

However, in the in-mold label forming system described above, since a label having a desired shape is punched from the original sheet with the lower mold and the punch, the lower mold and the punch are worn with the passage of time, and the label demolding accuracy is increased. Has a problem that gets worse. As a result, the label of the desired shape cannot be reliably punched from the original label, or a part of the label is stretched or deformed due to cutting resistance, and the desired shape of the label is stable over a long period of time. In addition, the die-cutting could not be reliably performed.

JP 2009-126137 A

  The problem to be solved is that when a die is formed from a label sheet into a desired shape by using a lower die and a punch, the label is stretched or deformed due to cutting resistance, and is stable over a long period of time. It is in a point that it cannot be punched into a desired shape.

Claim 1 of the present invention is a label cutting apparatus for cutting a label from a label sheet on which a number of labels of a desired shape used for in-mold label molding are printed at least in the transfer direction.
The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. a label sheet feeding winding means to position the label of the label sheet to the cutting position, vertically movably provided at a cutting position of the label sheet looped in a planar shape on the body top surface, the elevating table for supporting the label sheet, the lifting A positional deviation regulating means comprising a regulating member sandwiched by a lifting and lowering operation member that lifts and lowers the table, and a lifting and lowering table that is lifted on the upper and lower sides of the label sheet that is passed through the main body in the transfer direction; And a laser beam cutting means for outputting a laser beam along the outer shape of the label sheet transferred to the cutting position to melt and cut the label sheet.
According to a third aspect of the present invention, there is provided a label cutting and supplying apparatus for mounting in a mold a label cut from a label sheet on which a large number of labels having a desired shape used for in-mold label forming are printed in the transfer direction. The label sheet fed from the wound sheet roll and spread in a flat shape on the upper surface of the main body is sequentially transferred by a feed amount of one label as the take-up reel is wound, and is moved to the cutting position of the main body. Label sheet supply take-up means for positioning the label sheet label, and a lifting / lowering table that supports the label sheet, and is lifted / lowered at a cutting position of the label sheet that is stretched flat on the upper surface of the main body. The lifting / lowering operation member that operates and the lifting / lowering table that is lifted on the upper and lower sides in the transfer direction of the label sheet that is passed over the main body are held. Position deviation restricting means provided with a restricting member, laser light cutting means for outputting a laser beam along the label outer shape of the label sheet transferred to a required cutting position, and melting and cutting, between the cutting position and the mold And a supply means for adsorbing and holding the label cut by the adsorbing member connected to the negative pressure source and mounting it in the mold.
According to a fifth aspect of the present invention, a label cut from a label sheet on which a large number of labels having a desired shape used for in-mold label molding are printed at least in the transfer direction is delivered to a pseudo core in which the label is mounted in a mold. In the label cutting / delivery device, the label sheet fed out from the sheet roll on which the label sheet is wound and spread in a planar shape on the upper surface of the main body is fed by the feed amount of one label as the take-up reel is wound. Label sheet supply and winding means for sequentially transferring and positioning the label sheet label at the cutting position of the main body, and being provided so as to be able to move up and down at the cutting position of the label sheet suspended in a plane on the upper surface of the main body. Elevating table to be supported, elevating operation member for elevating and lowering the elevating table, and the upper and lower sides of the label sheet passing through the main body in the transfer direction A positional deviation regulating means provided with a regulating member sandwiched between the raised and lowered table, a laser beam cutting means for outputting a laser beam along the label outer shape of the label sheet transferred to a required cutting position, and cutting by melting. A main feature is provided with a transfer means provided so as to be movable between the cutting position and a transfer position facing the pseudo core, and sucking and holding the label cut by the suction member connected to the negative pressure source. To do.
A label cutting method for cutting a label from a label sheet on which a large number of labels having a desired shape used for in-mold label forming are printed at least in the transfer direction. The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. 1. Place the label sheet label at the cutting position. A lifting table that supports and lifts the label sheet at the label sheet cutting position in the main body, and a regulating member that is provided at the cutting portion of the main body and passes the label sheet, and moves upward in the transfer direction of the label sheet. 2. And the misalignment is regulated by pinching the lower side. The main feature is that the laser beam is output along the outer shape of the label sheet transferred to the cutting position to melt and cut the label.
According to a thirteenth aspect of the present invention, there is provided a label cutting and supplying method in which a label cut from a label sheet on which a plurality of labels having a desired shape used for in-mold label forming is printed at least in the transfer direction is mounted in a mold. The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. 1. Place the label sheet label at the cutting position. The lifting and lowering table that supports and lifts the label sheet at the label sheet cutting position in the main body and the regulating member provided at the cutting position of the main body clamps the upper and lower sides of the label sheet in the transfer direction of the main body. To control the displacement. 3. A laser beam is output along the outer shape of the label sheet transferred to the cutting position to melt and cut the label. The main features of the present invention are the above-described items 1 to 4, in which the label melted and cut by the suction member moved to the cutting position is sucked and held, and then the label is mounted by moving the suction member to the mold.
Claim 14 delivers a label cut from a label sheet on which a large number of labels having a desired shape used for in-mold label molding are printed at least in the transfer direction to a pseudo core in which the label is mounted in a mold. In the label cutting and passing method: The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. 1. Place the label sheet label at the cutting position. The lifting and lowering table that supports and lifts the label sheet at the label sheet cutting position in the main body and the regulating member provided at the cutting position of the main body clamps the upper and lower sides of the label sheet in the transfer direction of the main body. To control the displacement. 3. Laser beam is output along the label outline of the label sheet transferred to the cutting position to melt and cut the label. 4. After attracting and holding the label melted and cut by the suction member moved to the cutting position, the suction member is moved to a delivery position opposite to the pseudo core. The main feature is that the pseudo core is moved to the suction member side at the delivery position and the label held by suction is sucked and held.

  In the present invention, when punching a label from a label sheet into a desired shape, the label is melted and cut by a laser beam to reliably and stably cut the label from the label sheet over a long period of time and receive it on the pseudo core. Can pass.

It is a perspective view which shows the outline of a label type | mold cutting delivery apparatus. It is explanatory drawing which shows a laser beam cutting means and an optical path state. It is explanatory drawing which shows a raising / lowering means. It is decomposition | disassembly explanatory drawing which shows a delivery means. It is a section explanatory view showing the inside of a pseudo type. It is explanatory drawing which shows the clamping state of a label sheet with a raising / lowering table and a control board. It is explanatory drawing which shows the state which lowered the delivery means and adsorb | sucked the label. It is explanatory drawing which shows the state which raised the delivery means and made the adsorption | suction holding | maintenance label make it oppose to a pseudo core. It is explanatory drawing which shows the state which made the pseudo core approach in the pseudo | mold. It is explanatory drawing which shows the adsorption holding state of the label by a pseudo core. It is explanatory drawing which shows the example of a winding mechanism of the other label with respect to a pseudo core. It is explanatory drawing which shows the winding effect | action by the winding mechanism shown in FIG. It is explanatory drawing which shows the other example of a mechanism which moves a pseudo | simulation type | mold.

  In the present invention, after a laser beam is output from the laser beam cutting means along the outer shape of the label to melt and cut the label sheet transferred to a required cutting position, the label cut by the delivery means is sucked and held. The best mode is to pass it to the pseudo core.

The present invention will be described below with reference to the drawings showing examples.
As shown in FIGS. 1 to 5, a label cutting / delivery device 3 that cuts a label 1 used in in-mold labeling and delivers it to a pseudo core 11 supplies a label sheet 5 and a label from which the label 1 has been cut. Label sheet supply winding means 7 for winding the sheet 5; laser beam cutting means 9 for cutting the label sheet 5 into a desired shape matching the label 1 molded in-mold; and the label 1 cut from the label sheet 5 It is comprised by the delivery means 13 delivered to the pseudo core 11.

The pseudo core 11 is a member used when the cut label 1 is mounted in a mold (not shown) of a resin molding machine, between a delivery position described later and a mold in the resin molding machine. Move controlled. In this example, two pseudo cores 11 are arranged in parallel at a predetermined interval so as to match the two cavities formed in the mold. Each pseudo core 11 has an outer shape that matches an in-mold label molded product (not shown), is connected to a negative pressure source (not shown), and is cut through a number of suction holes 11a formed on the outer peripheral surface. The labeled label 1 is sucked under negative pressure and held in a deformed state so as to match the outer shape of the in-mold label molded product.

At the center of the table surface of the main body 15 in the label cutting / delivery device 3, there is an opening 15a having a width corresponding to one or two labels in the horizontal direction shown in the figure and a width corresponding to one or two labels in the front-rear direction shown in the figure. A lift table 17 is formed and is loosely fitted in the opening 15a. The elevating table 17 is raised and lowered by an elevating means 19 between a lower position coinciding with the table surface of the main body 15 and an upper position slightly above the table surface.

  That is, the elevating means 19 is supported so as to be moved in the vertical direction by the guide rail 21 fixed so as to extend in the vertical direction in the main body 15 corresponding to the lower part of the opening 15a. The lifting / lowering body 23 includes a lifting / lowering operation member 25 such as an air cylinder that is connected to the lifting / lowering body 23 and moves up and down. A guide shaft 23a having an axis in the vertical direction is supported by the elevating body 23 so as to slide. The upper end of the guide shaft 23a is mounted with an elastic member 23b such as a coil spring. It is fixed to the lower surface of the lifting table 17.

The body 15 corresponding to the opening 15a has a pair of right and left restricting plates 27 extending in the illustrated front-rear direction that constitute a part of the positional deviation restricting means, and has a slight gap between the lower surface and the table surface. It is fixed to have. When the elevating table 17 is moved to the upper position, the restricting plate 27 sandwiches the label sheet 5 spanned so as to pass between the restricting plate 27 and the table surface and restricts displacement.

  A sheet roll 29 around which the long label sheet 5 is wound is rotatably supported inside the main body 15, and the label sheet 5 led out from the sheet roll 29 has an upper side in the transport direction of the main body 15 and After being supported on the table surface of the main body 15 in a horizontal state by a pair of upper and lower feed rolls 31 a and 31 b provided on the lower side, it is wound around a take-up reel 33 provided in the main body 15. A tension roll (not shown) is provided in the path of the label sheet 5 derived from the sheet roll 29, and a predetermined tension is applied to the derived label sheet 5 so as to be in a tension state. .

The label sheet 5 is a thin synthetic resin sheet, a paper sheet or the like, in which a large number of labels 1 having a desired pattern are arranged in two rows parallel to the transport orthogonal direction (front-rear direction) and the transport direction (left-right direction). ) Are printed at predetermined intervals.

  Laser light cutting means 9 is disposed on the main body 15 located on the right side of the opening 15a. The laser beam cutting means 9 includes a first movable body 37 that is movably supported on a guide rail 35 that is fixed to the main body 15 so as to extend in a direction perpendicular to the transfer direction of the label sheet 5, and the first movable body 37. On the other hand, a second movable body 41 that is movably supported by a guide rail 39 that extends and is fixed in the transfer direction, and an interval of one label in the front-rear direction with respect to the second movable body 41. A pair of front and rear laser light output heads 43a and 43b, a first moving member 45 that reciprocates the first movable body 37 in the transfer orthogonal direction, and the second movable body 41 in the transfer direction. It comprises a second moving member 47 that reciprocates and a laser light oscillation member 49 that outputs laser light to each of the laser light output heads 43a and 43b.

  The first and second moving members 45 and 47 include first and second feed screws 45a and 47a that are rotatably supported with axes in the direction perpendicular to the transfer, and the first and second feed screws, respectively. First and second electric motors 45b and 47b, such as numerically controllable servo motors connected to drive by 45a and 47a, and the first and second electric motors 45b and 47b rotate as the electric motors 45b and 47b rotate. The first and second movable bodies 37 and 41 are reciprocated by the two feed screws 45a and 47a. The first and second moving members 45 and 47 may be a known belt mechanism, a planar linear motor, or the like.

  The laser light oscillation member 49 is composed of, for example, a laser light oscillator such as a YAG laser oscillator, an excimer laser oscillator, a CO2 laser oscillator, and a fiber laser, and an optical lens (none of which is shown), and has an absorption characteristic with respect to the label sheet 5. A laser beam having a high predetermined wavelength and output is oscillated. The laser light oscillation member 49 is connected to the first reflection member 51 fixed on the main body 15 by a first light guide member 53 extending in the transfer direction. The first reflecting member 51 reflects laser light incident on a total reflection plate (not shown) disposed at an angle of 45 degrees in the transport orthogonal direction and turns the optical path of the laser light by 90 degrees. .

  The laser light oscillation member 49 may be integrally provided with a guide light unit (not shown) so that the outer shape of the label 1 that is cut by outputting visible light integrally with the laser light may be visible.

A second reflecting member 55 is provided on the first movable body 37 located on the extension line in the transfer orthogonal direction with respect to the first reflection member 51, the second reflection member 55 extends in the transfer orthogonal direction, and It is connected to the first reflecting member 51 via a telescopic second light guide member 57 that can expand and contract. The second reflecting member 55 reflects the laser beam incident by a total reflection plate (not shown) disposed at an angle of 45 degrees in the transport direction, and turns the optical path of the laser beam by 90 degrees. A spectroscopic member 59 is provided on the second movable body 41 positioned on the extension line in the transfer direction with respect to the second reflecting member 55, and the spectroscopic member 59 extends in the transfer direction and is telescopic. The third light guide member 61 of the mold is connected to the second reflecting member 55.

The other laser light output head 43b described above is connected to the light separating member 59 by a fourth light guide member 63 extending in the transfer direction. The spectroscopic member 59 is irradiated in the transfer direction from the second reflecting member 55 by a semi-transparent mirror (not shown) such as a beam splitter (dichroic mirror) disposed at an angle of 45 degrees with respect to the transfer direction. A part of the laser light is transmitted in the same direction and the remaining part is reflected in the transport orthogonal direction. A part of the laser beam that has passed through the semi-transparent mirror is incident on the laser beam output head 43b.

A third reflecting member 65 is connected by a fifth light guide member 67 on the second movable body 41 located on the extended line in the direction perpendicular to the transfer member with respect to the spectroscopic member 59, and the third reflecting member 65 is one of the above-described ones. Are connected by a sixth light guide member 69 extending in the transfer direction. The third reflecting member 65 reflects the laser beam reflected from the semi-transparent mirror in the transfer direction by a total reflection plate (not shown) disposed at an angle of 45 degrees with respect to the transfer direction. The light is incident on the laser light output head 43a.

Each of the laser light output heads 43a and 43b described above is reflected and reflected by the built-in total reflection plates (not shown) such that the optical axis of the laser light is directed in the vertical direction. Are converged to a required spot diameter on the label sheet 5 in a horizontal state transferred by a built-in optical lens (not shown).

A delivery means 13 is disposed on the main body 15 corresponding to the upper side of the lifting table 17. The delivery means 13 is attached to a lower part between the pair of front and rear peristaltic plates 73 supported at the front and rear end portions of the elevating table 17 so as to swing about the shaft 71 and the front and rear sides. An elastic member 75c such as a coil spring is attached to a pseudo mold 75 having two recesses 75a that match the outer shape of the in-mold molded product, and a mounting shaft 75b attached to each recess 75a of the pseudo mold 75. An adsorption plate 77 as an adsorption member that is provided and attached and connected to a negative pressure source (not shown).

The transfer means 13 includes a suction position (cutting position) in which the suction surface of the suction plate 77 comes close to the lifting table 17 by the moving means 79 and faces in the horizontal direction, and is spaced upward from the lifting table 17 in the vertical direction. And is moved between delivery positions facing the pseudo core 11 described above. The moving means 79 includes a feed screw 81 that is rotatably supported with an axis in the vertical direction, and a rotary drive member 83 such as a servo motor that can be numerically controlled to rotate the feed screw 81 in the forward and reverse directions. , Fixed to the nut members 85 respectively engaged with the feed screw 81, extending in the direction orthogonal to the axis of the feed screw 81, and fixed to the longitudinal end of the lift body 87, It is comprised from the cam shaft 89 supported so that it may slide with respect to the cam hole 73a formed in the board 73. FIG.

The lifting and lowering body 87 is positioned on the front-rear direction side of the feed screw 81 and is supported so as to be slidable with respect to a guide shaft 91 having an axis in a direction coinciding with the feed screw 81.

Next, a description will be given of the cutting / delivery operation of the label 1 by the label cutting / delivery device 3 and the delivery method to the pseudo core.
First, the label sheet 5 led out from the sheet roll 29 is supported so as to be wound around the take-up reel 33 after being supported on the table surface of the main body 15 via the tension roll 31. In this state, the label sheet 5 positioned on the table surface of the main body 17 is bridged so as to pass between the elevating table 17 and the regulating plate 27. In the above state, the delivery means 13 is slid to the delivery position where the suction plate 77 faces the pseudo core 11.

  When the label 1 printed on the label sheet 5 is transferred to a predetermined position on the lifting table 17 in the above state, the lifting operation member 25 is operated to move the lifting body 23 upward by a predetermined stroke, and the restriction plate 27 The lift table 17 is elastically pressed against the elastic member 23b.

Next, in the above state, the first and second electric motors 45b and 47b are driven and controlled, the first and second movable bodies 37 and the second movable body 41 are moved, and the laser beam output heads 43a and 43b are transported orthogonally. The laser beam output from the laser beam oscillation member 49 is irradiated along the outer shape of the label 1 in the label sheet 5 while moving in the two-dimensional direction of the direction and the transfer direction, and melted and cut by the heat.

At this time, the label sheet 5 is softened and stretched by the heat of the laser beam, and is contracted to make it difficult to melt and cut the label 1 accurately. As described above, the label 1 in the label sheet 5 is difficult. Is restricted between the restriction plate 27 and the lifting table 17 to restrict the expansion and contraction of the label sheet 5 during melting, and the label 1 can be accurately cut from the label sheet 5 in a predetermined shape. (See Figure 6)

  Whether or not the location of the label 1 on the label sheet 5 has been transferred to a predetermined position on the lifting table 17 is determined by optically detecting the location of the label 1 on the label sheet 5 by optical detection means (not shown). A method for detecting and positioning a position detection hole (not shown) previously formed in the label sheet 5 corresponding to the location of the label 1 by the optical detection means, and a method of transferring by an imaging means (not shown). Any of the positioning methods by imaging the position of the label 1 of the label sheet 5 and recognizing the shape may be used.

  Further, the laser beam output from the laser beam oscillation member 49 is partly changed to the laser beam output head 43b by the spectroscopic member 59 after the optical path is changed by the first reflecting member 51 and the second reflecting member 55, and partly. Are output to the laser beam output head 43a, and the laser beam is irradiated along the positions of the labels 1 arranged in parallel in the direction perpendicular to the transport direction of the label sheet 5 to simultaneously cut and form the two labels 1.

  Furthermore, since the second light guide member 57 and the third light guide member 61 have a telescopic structure, the second light guide member 57 and the third light guide are moved along with the movement of the first movable body 37 and the second movable body 41. When the optical member 61 expands and contracts, the laser light output heads 43a and 43b can be moved in the two-dimensional direction of the transfer direction and the transfer orthogonal direction.

Next, after the first movable body 37 and the second movable body 41 are moved back to return the laser beam output heads 43a and 43b to the standby position, the rotation drive member 83 is driven to rotate the feed screw 81 in a predetermined direction. Then, the elevating body 87 fixed to the nut member 85 is lowered. At this time, as the elevating body 87 is lowered, the cam shaft 89 slides on the cam hole 73a of the peristaltic plate 73, so that the peristaltic plate 73, and hence the transfer means 13, is perturbed in the counterclockwise direction shown in the figure around the shaft 71. Then, the suction plate 77 is positioned at the suction position close to the upper surface of the cut label 1.

In the above-described state, the suction plate 77 is operated under negative pressure to suck and suck the label 1 immediately below it under negative pressure, and then the lifting / lowering operation member 25 is moved back to lower the lifting table 17 so that the upper surface of the body 15 Match the table surface. (See Figure 7)

Next, the rotary drive member 83 is driven in reverse to rotate the feed screw 81 in the opposite direction to raise the elevating body 87. At this time, as the elevating body 87 is raised, the cam shaft 89 slides in the cam hole 73a of the peristaltic plate 73 in the direction opposite to the above, so that the peristaltic plate 73, and hence the delivery means 13, is illustrated with the shaft 71 as the center. By swinging clockwise, the suction plate 77 that sucks and holds the label 1 is moved to the delivery position facing the pseudo core 11. (See Figure 8)

When the lifting table 17 is lowered, or while the suction plate 77 is moved to the delivery position, the take-up reel 33 is rotationally driven by the amount of rotation corresponding to the width of one label 1 and the label sheet 5 is moved. The location of the label 1 to be transferred and then cut is positioned on the lifting table 17.

Next, the pseudo core 11 is moved with respect to the suction plate 77 moved to the delivery position, and a part of the pseudo core 11 is brought into contact with the label 1 sucked and held on the suction plate 77. Continue moving. At this time, the suction plate 77 moves to the bottom side of the recess 75a while resisting the elastic force of the elastic member 75c as the pseudo core 11 is pressed, and causes the pseudo core 11 to enter the recess 75a.

As a result, the label 1 sucked and held by the suction plate 77 is deformed into a substantially box shape that coincides with the outer surface of the pseudo core 11 (the inner surface of the recess 75a) by the cooperation of the inner surface of the recess 75a and the entering pseudo core 11. It is adsorbed on the outer surface of the pseudo core 11 in a state. (See Figure 9)

After the above operation, the suction by the suction plate 77 is released, and the pseudo core 11 is moved backward while being removed from the recess 75a while continuing the suction state of the label 1 by the pseudo core 11, and the delivery of the label 1 is completed. The suction plate 77 is returned to the original position by the elastic force of the elastic member 75c as the pseudo core 11 is detached. (See Figure 10)

  In this embodiment, since the label 1 is melted and cut from the label sheet 5 using laser light, the cutting operation of the label 1 can be performed reliably and stably over a long period of time, resulting from the cutting failure of the label 1. The molding defect of the in-mold label molded product 87 can be reduced.

  In the above description, laser light is emitted from the two laser light output heads 43a and 43b to the label sheet 5 on which two rows of labels 1 are printed in the transport orthogonal direction at a predetermined interval. Although two sheets of labels 1 are melted and cut at the same time by outputting, label sheets 5 to 3 on which three or more rows of labels 1 are printed at a predetermined interval in the transport direction and parallel to the transport orthogonal direction. Two or more labels 1 may be melt-cut simultaneously. In this case, an optical circuit capable of outputting laser light from one laser light oscillation member 49 to three laser light output heads is constructed, or two laser light cutting means 9 similar to the embodiment are provided. Four labels may be melt-cut at the same time in parallel.

  In the above description, the suction plate 77 is elastically supported in the recess 75a of the pseudo mold 75 that matches the outer shape of the in-mold label molded product, and the suction plate 77 is moved when the pseudo core 11 enters the recess 75a. In the present invention, the label 1 is integrally formed on the outer peripheral surface of a molded product such as a plastic cup. It is also possible to melt and cut a label used for an in-mold label molded product with a laser beam and deliver it to the pseudo core.

That is, in a label used for a frusto-conical in-mold label molded product, the fan-shaped label 1 is melted and cut from the label sheet 5 and then the frusto-conical pseudo core that matches the shape of the molded product. It is necessary to wrap around the outer peripheral surface of the paper and deliver it. In order to make this winding possible, for example, as shown in FIG. 11, a pair of front and rear recesses 121a extending in a direction perpendicular to the longitudinal direction is formed on the suction surface of the suction plate 121 with a gap slightly wider than the maximum outer width of the pseudo core 11. The winding bar 123 is accommodated in each of the recesses 121a so that the suction surface of the suction plate 121 is substantially flush. The winding bar 123 is connected to a rod of an operating member 125 such as an air cylinder fixed to the side surface of the suction plate 121, and is separated from the position in the recess 121a and the suction surface of the suction plate 121 by a predetermined width. Moved between positions.

Then, in order to wrap the attracted and held label 1 around the outer peripheral surface of the pseudo core 11, as shown in FIG. The suction plate 121 or the pseudo core 11 is moved so as to linearly contact with each other. Next, in the above state, the label 1 by the suction plate 121 is moved by moving the winding bar 123 in the direction of detaching from each recess 121a by operating the operating member 125 while the suction state of the label 1 by the suction member 121 is maintained. The suction is forcibly released and moved along the outer peripheral surface of the pseudo core 11. At this time, since the pseudo core 11 itself is sucked with negative pressure, the suction is forcibly released from the suction plate 121, and the label 1 to be moved along the outer peripheral surface of the pseudo core 11 is sucked and wound.

  The above description is an apparatus and method for controlling the movement of the first and second movable bodies and moving the laser light output head in the two-dimensional direction to melt and cut the label from the label sheet. In the optical path of the laser beam output from the laser beam oscillation device, the laser beam is scanned in a two-dimensional direction with respect to the label sheet without moving the laser beam output head by, for example, a galvano scanner device or a beam bender device. It is good also as a structure and method of melt-cutting a label. In this case, the apparatus can be simplified by eliminating the mechanism for moving the laser beam output head.

  Further, when the laser beam is output from the laser beam output heads 43a and 43b to the label sheet 5 and the label 1 is melted and cut, the outer edge of the melted and cut label 1 is softened by preheating and expanded or contracted. There is a risk of deformation. In this case, an apparatus and method for reducing deformation by providing an air injection nozzle in the vicinity of the laser light output heads 43a and 43b and injecting air to the label 1 immediately after fusing to cool and harden it. Good.

In the delivery means 13, the pseudo mold 75 is configured to swing between the suction position and the delivery position by the cam mechanism. However, as shown in FIG. 13, the feed connected to the air cylinder and the electric motor is provided above the lifting table 17. A vertical arm 131 connected to a vertical operation member (not shown) such as a screw, or a pseudo-type or suction plate 77 provided in a lower portion of the vertical arm 131 (FIG. 13 shows a suction plate 77 attached to the lower portion of the vertical arm 131. In this example, the reversing member 133 is rotated between the cutting position in which the suction surface faces in the horizontal direction and the delivery position in the vertical direction. As the reversing member 133, for example, an electric motor, an air cylinder, a link, and the like that support the suction plate 77 so as to rotate with respect to a mounting frame 135 attached to the lower part of the upper and lower arms 131 and are fixed to the lower part of the upper and lower arms 131. The suction plate 77 may be rotated to the above-described cutting position by the rotation shaft 137 of the rotation mechanism, and the label 1 may be sucked and held, and then rotated to the delivery position to deliver the label 1 to the pseudo core 11. .
In addition, in the said description, about the member similar to Example 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  In the first embodiment, for example, when a box-shaped in-mold label molded product is formed, the pseudo core 11 is inserted into the pseudo mold 75 provided with the suction plate 77 for sucking and holding the cut label 1. While the label 1 is deformed into a box shape, the label 1 is sucked and held on the outer surface of the pseudo core 11, or in the above description, for example, when a cup-shaped in-mold label molded product is molded, While the label 1 cut and wound around the outer peripheral surface of the core 11 is wound and delivered, the structure and method are used. For example, in the case of forming a planar in-mold label molded product such as a lid, It is good also as a label supply apparatus and a label supply method which supply the label 1 cut | disconnected with respect to the inside of a type | mold directly.

  As a mechanism for supplying the cut label 1 directly into the mold, an adsorption means for adsorbing and holding the label 1 with a negative pressure is attached to a conventionally known three-dimensional movement mechanism or an arm of an articulated arm movement mechanism. As the arm moves, the suction means may be configured as a label supply device that controls the movement between the cutting position of the label 1 and the mold and supplies it directly into the mold.

DESCRIPTION OF SYMBOLS 1 Label 3 Label cutting | disconnection delivery apparatus 5 Label sheet 7 Label sheet supply winding means 9 Laser beam cutting means 11 Pseudo core 13 Delivery means 15 Main body 15a Opening part 17 Lifting table 19 which comprises a part of position shift control means Lifting means 21 Guide rail 23 Elevating body 23a Guide shaft 23b Elastic member 25 Elevating operation member 27 Restricting plate 29 constituting part of position deviation restricting means Sheet roll 31a / 31b Feeding roll 33 Take-up reel 35 Guide rail 37 First movable body 39 Guide Rail 41 Second movable body 43a, 43b Laser light output head 45 First moving member 45a First feed screw 45b First electric motor 47 Second moving member 47a Second feed screw 45b Second electric motor 49 Laser light oscillation member 51 First 1 reflective member 53 1st light guide member 55 2nd reflective member 57 2nd Light guide member 59 Spectral member 61 Third light guide member 63 Fourth light guide member 65 Third reflection member 67 Fifth light guide member 69 Sixth light guide member 71 Shaft 73 Peristaltic plate 73a Cam hole 75 Pseudo mold 75a Recess 75b Attachment shaft 75c Elastic member 77 Adsorption plate 79 as adsorption member Moving means 81 Feed screw 83 Rotation drive member 85 Nut member 87 Lifting body 89 Cam shaft 121 Adsorption plate 121a Recess 123 Winding bar 125 Actuating member 131 Upper and lower arm 133 Reversing member 135 Mounting frame 137 Rotating shaft

Claims (14)

In a label cutting device for cutting a label from a label sheet on which a number of labels having a desired shape used for in-mold label molding are printed at least in the transfer direction,
The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. Label sheet supply winding means for positioning the label sheet label at the cutting position ;
A lifting / lowering table that supports the label sheet, a lifting / lowering operation member that lifts / lowers the lifting / lowering table, and a label that passes over and passes through the body. A positional deviation regulating means comprising a regulating member that is clamped by a lifting table that has raised the upper and lower sides in the sheet transfer direction;
Laser beam cutting means for outputting a laser beam along the label outer shape of the label sheet transferred to a required cutting position to melt and cut;
An in-mold label molded product label cutting apparatus comprising: In claim 1,
The laser beam cutting means converges on the label sheet as it is output from the laser beam output head while moving the laser beam output head facing the label sheet to be transferred at a predetermined interval in the transfer direction and the transfer orthogonal direction. Cutting device for in-mold label molded product that scans laser beam along the outer shape of the label and melts and cuts it . In a label cutting and supplying apparatus for mounting in a mold a label cut from a label sheet on which a number of labels having a desired shape used for in-mold label molding are printed at least in the transfer direction.
The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. Label sheet supply winding means for positioning the label sheet label at the cutting position;
A lifting / lowering table that supports the label sheet, a lifting / lowering operation member that lifts / lowers the lifting / lowering table, and a label that passes over and passes through the body. A positional deviation regulating means comprising a regulating member that is clamped by a lifting table that has raised the upper and lower sides in the sheet transfer direction;
Laser beam cutting means for outputting a laser beam along the label outer shape of the label sheet transferred to a required cutting position to melt and cut;
A supply means which is provided so as to be movable between the cutting position and the mold, and which holds the label cut by the suction member connected to the negative pressure source and is mounted in the mold;
An in-mold label molded article label cutting and supplying apparatus comprising: In claim 3,
The laser beam cutting means converges on the label sheet as it is output from the laser beam output head while moving the laser beam output head facing the label sheet to be transferred at a predetermined interval in the transfer direction and the transfer orthogonal direction. A label cutting / supplying device for an in-mold label molded product that melts and cuts a laser beam to be scanned along the outer shape of the label. In a label cutting / delivery device that delivers a label cut from a label sheet on which a number of labels having a desired shape used for in-mold label molding are printed at least in the transfer direction to a pseudo core in which the label is mounted in a mold ,
The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. Label sheet supply winding means for positioning the label sheet label at the cutting position;
A lifting / lowering table that supports the label sheet, a lifting / lowering operation member that lifts / lowers the lifting / lowering table, and a label that passes over and passes through the body. A positional deviation regulating means comprising a regulating member that is clamped by a lifting table that has raised the upper and lower sides in the sheet transfer direction;
Laser beam cutting means for outputting a laser beam along the label outer shape of the label sheet transferred to a required cutting position to melt and cut;
A transfer means provided so as to be movable between the cutting position and the transfer position facing the pseudo core, and holding the label cut by the suction member connected to the negative pressure source;
An in-mold label molded product label cutting and delivering device. In claim 5,
The laser beam cutting means converges on the label sheet as it is output from the laser beam output head while moving the laser beam output head facing the label sheet to be transferred at a predetermined interval in the transfer direction and the transfer orthogonal direction. A label cutting / delivery device for an in-mold label molded product that scans a laser beam along the outer shape of the label and melts and cuts it. In claim 5,
The in-mold label molded article label cutting and delivering device, wherein the delivering means includes a moving means for swinging the suction member between the cutting position and the delivering position. In claim 7,
The moving means slides a linear movement mechanism composed of a feed screw, an electric motor and a nut member meshing with the feed screw, and a cam shaft provided on the nut member into a cam hole formed in a peristaltic plate to which the adsorption member is attached. A label cutting / delivery device for an in-mold label molded product comprising a cam mechanism that is supported in such a manner that a suction member is rocked by a nut member that moves in the axial direction as the feed screw rotates. In claim 7,
The moving means includes an upper and lower arm supported so as to be movable up and down with respect to the main body, an upper and lower operation member that raises and lowers the upper and lower arm, and a pseudo mold that is attached and fixed to the lower portion of the upper and lower arm. A label cutting and delivering device for an in-mold label molded product, comprising a reversing member that rotates between the two. In claim 5,
The delivery means includes a pseudo mold having a recess that matches the outer shape of the pseudo core, and an elastic member that elastically supports the suction member in the pseudo mold recess, and holds the melt-cut label by suction. The adsorbing member is moved against the elastic force of the elastic member as the pseudo core comes into contact with the adsorbing member, and the pseudo core can be inserted into the recess so that the label adsorbed and held by the adsorbing member is pseudo core. A label cutting and delivering device for an in-mold label molded product that can be deformed so as to match the outer shape. In claim 5,
The delivery means is provided with a pair of winding bars with respect to the suction surface of the suction member at a distance corresponding to the maximum outer width of the pseudo core, and is movable between the suction surface and a position away from the suction surface. An inlay that enables the winding bar to be separated from the suction surface while the pseudo core is close to or in contact with the longitudinal center of the label attracted by the member, so that both sides of the label in the longitudinal direction can be wound along the outer peripheral surface of the pseudo core. Label cutting and delivery device for molded label molded products. In a label cutting method for cutting a label from a label sheet on which a number of labels of a desired shape used for in-mold label molding are printed at least in the transfer direction,
1. The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. Position the label sheet label at the cutting position,
2. A lifting table that supports and lifts the label sheet at the label sheet cutting position in the main body, and a regulating member that is provided at the cutting portion of the main body and passes the label sheet, and moves upward in the transfer direction of the label sheet. And the misalignment is regulated by pinching the lower side.
3. A laser beam is output along the label outline of the label sheet transferred to the cutting position to melt and cut the label.
A label cutting method for an in-mold label molded product comprising the above 1 to 3. In a label cutting and supplying method in which a label cut from a label sheet on which a number of labels of a desired shape used for in-mold label molding are printed at least in the transfer direction is mounted in a mold,
1. The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. Position the label sheet label at the cutting position,
2. The lifting and lowering table that supports and lifts the label sheet at the label sheet cutting position in the main body and the regulating member provided at the cutting position of the main body clamps the upper and lower sides of the label sheet in the transfer direction of the main body. To regulate displacement,
3. For the label sheet transferred to the cutting position, a laser beam is output along the outer shape of the label to melt and cut the label.
4). After sucking and holding the melt-cut label by the suction member moved to the cutting position, the suction member is moved to the mold and the label is attached.
A label cutting and supplying method for an in-mold label molded product comprising the above 1 to 4. In a label cutting and passing method for passing a label cut from a label sheet on which a number of labels having a desired shape used for in-mold label molding are printed at least in the transfer direction to a pseudo core in which the label is mounted in a mold ,
1. The label sheet fed from the sheet roll on which the label sheet is wound and spread in a flat shape on the upper surface of the main body is sequentially transferred by the feed amount of one label as the take-up reel is wound. Position the label sheet label at the cutting position,
2. The lifting and lowering table that supports and lifts the label sheet at the label sheet cutting position in the main body and the regulating member provided at the cutting position of the main body clamps the upper and lower sides of the label sheet in the transfer direction of the main body. To regulate displacement,
3. A laser beam is output along the label outline of the label sheet transferred to the cutting position to melt and cut the label.
4). After sucking and holding the label that has been melted and cut by the suction member that has been moved to the cutting position, the suction member is moved to a delivery position facing the pseudo core.
5. Move the pseudo core to the suction member side at the delivery position to suck and hold the label held by suction.
A label cutting and delivering method for an in-mold label molded product comprising the above 1 to 5.

Images