JP5725606B2 - Label cutting device and label cutting method for in-mold label molding - Google Patents

Description

  The present invention relates to an in-mold label forming label cutting apparatus and a label cutting method in which a synthetic resin is injected into a label mounted in a mold and integrally molded.

  As a molding system that forms an in-mold label molded product that is molded by injecting a synthetic resin into a mold by mounting a label punched from a label sheet derived from a label roll into a desired shape, for example, in Patent Document 1 As shown, the label original fabric is fed between the label original fabric supply section for supplying the label original fabric, the cylindrical lower mold located below the label original fabric supplied from the label original fabric supply section, and the lower mold. A hollow punch that punches and forms a label, a suction head that moves up and down in the punch to suck the label, and a label that is placed under the suction head and receives the label from the suction head and transports it while sucking it A suction conveyance line and a label winding part that receives the label from the label suction conveyance line and sucks and winds the label around the outer periphery of the label holding core. There has been molded in-mold label container by injecting a synthetic resin in a state of inserting the label holding core wound into the mold.

  In the above molding system, after the label original supplied from the label original supply unit is punched into a desired developed shape by the lower mold and the punch, the punched label is sucked by the suction head to the label suction transport line. The transferred label is wound around the outer periphery of the label holding core and supplied into the mold.

However, in the above-described molding system, a label with a desired shape is punched from the original label with a lower mold and a punch, so that the lower mold and the punch wear with use over time, resulting in a problem that the label punching accuracy deteriorates. have. 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.

In the above molding system, after the label punched into the desired shape by the lower mold and the punch is once sucked and held by the suction head, it is transferred to the label suction transport line and transported to a predetermined position. Because the label received from the label adsorption transport line is attracted and wound around the outer periphery of the label holding core and mounted in the mold, the number of label transfer processes increases, and the label easily shifts during that time. On the other hand, there is a problem that it is difficult to attach the label in a regular posture. When the synthetic resin is injected and integrally molded without the label being mounted in a normal posture with respect to the inside of the mold, the label is misaligned in the in-mold label molded product. The molded product has become defective and the molding efficiency has deteriorated.

In order to solve the above-mentioned problems, the applicant of the present invention has applied the label sheet from the sheet roll on which the label sheet is wound without using the mold and punch described in Japanese Patent Application No. 2009-257622, with a feed amount for one sheet. Label sheet supply winding means for transporting and winding, and a perforation that is arranged on the upper side of the label sheet in the transport direction and outputs a laser beam to the transported label sheet to match the whole or part of the label outer shape A perforation forming means for forming a die, a die having a hollow portion that is arranged on the lower side in the transport direction of the label sheet from the perforation forming means, and that matches the outer shape of the label, and a die-cutting body along an inner surface of the hollow portion A label punching means for cutting the label sheet supported by the die along the perforation and punching the label. The molding label proposed device allows cutting to form a perforation and melt by the laser beam.

In the above apparatus, the label sheet fed out when the perforation is formed by the output laser beam is supported in a planar shape on the support plate. Therefore, when a laser beam is output to the label sheet in the support state, a part of the laser beam that has melted the label sheet is reflected by the support plate to further melt the label sheet, thereby forming the label The outer edge of the sheet becomes non-uniform, and the quality of the in-mold label molded product to be molded is deteriorated. In addition, when forming perforations with laser light, in-mold label molding is performed in which molten sheet components and ink components printed on the sheets are carbonized by the heat of the laser light and adhere to the outer edge of the label. There is a problem of deteriorating the quality of the product.

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. In addition, the number of steps until the punched label is mounted in the mold increases, and the label is displaced during that time, making it difficult to mount the label in the mold in a predetermined posture. The defective product rate of the molded product is high. Furthermore, the outer edge of the cut label is reflected by the laser beam output from the support plate that supports the label sheet, or the sheet component is carbonized by the heat of the laser beam and adhered to the cut label. Therefore, the quality of the in-mold label molded product that is molded is deteriorated.

Claim 1 of the present invention, a pseudo attaching the label areas in the mold after the label locations desired shape for use in in-mold label molding were punched out label locations from multiple printed label sheet toward the conveying direction in the label die-cut apparatus for supplying punched label locations relative to the core, the label sheet from the sheet roll label sheet is wound around, wound and transported in the feeding amount of the label one land fraction, the label areas A label sheet supply take-up means for positioning the label sheet at the cutting position, and a support portion having a similar shape whose plane is slightly smaller than the label ground in the recess formed at the cutting position, and the label on the label sheet by the support portion a label supporting means for supporting the earth so that the outer edge is unsupported, is arranged in the transport direction upstream side of the label sheet, label of the label sheet to be transported A laser beam output unit for melting cutting the label areas and outputs to converge laser light along a contour of the label areas relative to the earth, the move the laser beam output section to the transport direction and the transport direction perpendicular 1 and a second moving member, and a laser beam output by the first and second moving members when the label ground of the label sheet is transferred to the cutting position by the label sheet supply winding means and supported on the support portion. The laser beam converged on the label sheet by moving the means in the transfer direction and the transfer orthogonal direction is scanned along the outline of the label base so that the label base can be melted and cut and converged along the outline of the label base. The laser beam that has been irradiated and passed through the label sheet is reflected by the bottom surface of the recess, and the melting of the label sheet can be regulated by making the laser beam unable to converge on the label sheet. The most important feature that was.

Claim 6 is a label cutting method for in-mold label molding in which each label base is cut from a label sheet on which a large number of label bases of a desired shape used for in-mold label molding are printed in the transfer direction. On the support portion having a similar shape in which the plane provided in the recess formed at the cutting position is slightly smaller than the label ground after sequentially transferring the label ground by one sheet and moving the label ground to the cutting position. The laser beam output from the laser beam output means moving in the transfer direction and the transfer orthogonal direction is applied to the label site of the label sheet supported in the non-supported state at the outer edge along the outer shape of the label site. The label is melted and cut so that the label can be melted and cut so that the label can be formed. The most important feature that enables restricting the melting of the label sheet by the.

  The present invention can cut a label in a non-contact manner with respect to the label sheet as compared with a superior apparatus and method for punching and forming a label of a desired shape from a label sheet by a lower die and a punch, and the label can be cut by cutting resistance. Can be prevented from stretching or deforming, and can be cut and formed into a label having a desired shape stably over a long period of time. In addition, the label can be cut with respect to the label sheet in a non-contact manner with a laser beam, and the label can be mounted in the mold with high accuracy by reducing the positional deviation of the label at the time of cutting. Furthermore, when the label is cut from the label sheet, the outer edge of the label is prevented from being melted by the reflected laser beam, and the sheet component carbonized by the heat of the laser beam is prevented from adhering to the label and deteriorating the quality. be able to.

It is a perspective view which shows the outline of a label cutting device. It is explanatory drawing which expands and shows a racer light output means. It is a longitudinal cross-sectional view of a label support means. It is explanatory drawing which shows the example of a change of a label support means. It is explanatory drawing which shows the fusion | melting cutting state of the label by a laser beam. It is explanatory drawing which shows the movement state of the label by a delivery means. It is explanatory drawing which shows the fixed state of the label sheet by a raising / lowering table and a control board. It is explanatory drawing which shows the support state of the label sheet by a label support means at the time of irradiating a laser beam with respect to a label sheet.

When the label ground of the label sheet is transferred to the cutting position by the label sheet supply winding means and supported on the support portion, the laser beam output means is moved in the transfer direction and the transfer orthogonal direction by the first and second moving members. The laser beam that moves and converges on the label sheet is scanned along the outline of the label ground so that the label ground can be melted and cut, and is irradiated so as to converge along the outline of the label ground and pass through the label sheet. The best mode is that the melting of the label sheet can be regulated by reflecting the laser beam reflected from the bottom of the recess and making the laser beam unable to converge on the label sheet .

The present invention will be described below with reference to the drawings showing examples.
As shown in FIGS. 1 to 4, a label cutting device 3 for cutting a label 1 used for in-mold label forming supplies a label sheet 5 and also supplies a label sheet for winding up a scrap sheet 5 from which the label 1 has been cut. The winding means 7 and the laser light output means 9 for cutting the label 1 having a desired shape which is molded in-mold from the label sheet 5 are configured. The label 1 cut by the label cutting device 3 is sucked by a suction member 63 of a label delivery means 51 (to be described later) and taken out from the laser light output means 9, and then sucked and held on the outer peripheral surface of a pseudo core (not shown). Is done. The pseudo core is shaped to match the outer shape of the in-mold label molded product, and is controlled to move between the label cutting device 3 and the resin molding machine, and the label 1 adsorbed and held on the outer peripheral surface is transferred to the mold of the resin molding machine. Install inside.

  A sheet roll 13 around which a long label sheet 5 is wound is rotatably supported at the lower part of the main body frame 11 in the label cutting device 3, and the label sheet 5 led out from the sheet roll 13 is vertically paired. Is passed between the tension rolls 15 and spanned horizontally below the label cutting means 9 provided in the upper part of the main body frame 11. The scrap sheet 5b from which the label 1 has been cut by the label cutting means 9 is wound up by the length of one label 1 on a take-up reel 17 provided at the lower part of the main body frame 11.

The label sheet 5 has a plurality of rows (in the illustrated example, two rows, but three rows) parallel to the transport orthogonal direction with a plurality of label bases 5a made of a desired pattern on the surface of a synthetic resin sheet or the like. It may be 4 rows, etc.) and is printed at predetermined intervals in the transport direction. In addition, the code | symbol 25 in a figure is a turning roll which each changes the path | route of the label sheet 5. FIG.

  The laser beam output means 9 is disposed between the upper turning rolls 19 in the main body frame 11 and is movably supported by a guide rail 21 extending in the direction perpendicular to the transfer direction of the label sheet 5 with respect to the main body frame 11. The movable body 23, the second movable body 27 movably supported by the guide rail 25 extending in the transfer direction of the first movable body 23, and the movement orthogonal to the lower side in the transfer direction of the second movable body 27 Two laser beam output heads 29a and 29b provided at intervals in the direction orthogonal to the transfer direction of the label 1 in the direction, and a first moving member 31 that reciprocates the first movable body 23 in the transfer orthogonal direction. And a second moving member 33 that reciprocates the second movable body 27 in the transfer direction, and laser light oscillation members 35a and 35b that output laser light to the laser light output heads 29a and 29b. It is.

  As described above, in the label sheet 5 in which the label ground 5a is printed in three rows, three laser light output heads are used. In the label sheet 5 printed in four rows, four lasers are used. An optical output head may be disposed.

  The first moving member 31 and the second moving member 33 have axis lines in their respective moving directions, and feed screws 31a and 33a meshing with nut members (not shown) provided on the corresponding movable bodies 23 and 27, respectively. And first electric motors 31b and 33b such as servo motors that rotate the feed screws 31a and 33a so as to be numerically controllable. In addition, as said 1st and 2nd moving members 31 * 33, a well-known belt mechanism, a planar linear motor, etc. may be sufficient.

  Each of the laser beam oscillation members 35a and 35b includes, for example, a YAG laser oscillator, an excimer laser oscillator, a CO2 laser oscillator, a laser beam oscillator such as a fiber laser, and an optical lens (both not shown), and a corresponding laser beam output head. A laser beam having a predetermined wavelength and output is output to 29a and 29b. Further, each of the laser light output heads 29a and 29b described above is arranged on the horizontal label sheet 5 in which the optical axis of the input laser light is directed in the vertical direction and is transferred by the optical lens incorporating the laser light. Converge to the required beam diameter.

As the laser beam output means 9, a single laser beam oscillation member is used, and the laser beam output from the laser beam oscillation member is supplied to each laser beam output head 29a,. It is good also as a structure output to 29b.

  The main body frame 11 corresponding to the label cutting position is formed with an opening 11a having a width that is wider than the width of one sheet of the label 1 and a width perpendicular to the width of two sheets of the label 1 in the movement direction. The lift table 37 constituting a part of the label support means is loosely fitted so as to appear and disappear. The elevating table 37 is raised and lowered by an elevating means 45 between a lower position coinciding with the table surface of the main body 15 and an upper position slightly above the table surface.

On the upper surface of the elevating table 37, a recess 37a having a required depth is formed in which the transport direction is a width corresponding to one or one label and the transport orthogonal direction is a size corresponding to one or two labels. Label support plates 41a and 41b constituting part of the label support means are provided in the recess 37a. Each of the label support plates 41a and 41b has a similar size slightly smaller than that of the label 1, and supports the label 1 except for the outer edge of the label 1. Each of the label support plates 41 a and 41 b is prepared for each label 1 to be melted and cut, and can be exchanged with respect to the inside of the recess 37 a of the lifting table 37.

  As shown in FIG. 4, the label support means is formed with a groove 37b along the outer shape of the label support plates 41a and 41b on the upper surface of the lifting table 37, and the label support protruding surface surrounded by the groove 37b. It is good also as a structure which supports the label ground 5a by 41c * 41d in an outer end edge being an unsupported state.

  The elevating means 45 is a guide rail 43 fixed so as to extend in the vertical direction in the main body 15 corresponding to the lower part of the opening 15a, and an elevating body supported so as to be moved in the vertical direction by the guide rail 43. 45 and an elevating operation member 47 such as an air cylinder connected to the elevating body 45 and operating to elevate. A guide shaft 45a having an axial line in the vertical direction is supported by the lifting body 45 so that the guide shaft 45a is mounted with an elastic member 45b such as a coil spring and the upper end of the guide shaft 45a is attached to the lifting table 37. Fixed to the bottom surface.

  A pair of left and right regulating plates 49 shown in the figure extending in the direction perpendicular to the transfer are fixed to the main body 15 corresponding to the opening 15a so as to have a slight gap between the lower surface and the table surface. When the elevating table 37 moves to the upper position, the restricting plate 49 sandwiches the label sheet 5 that passes between the restricting plate 49 and the table surface and restricts displacement.

A label delivery means 51 is disposed on the main body 15 corresponding to the upper side of the lifting table 37. The label delivery means 51 is connected to the pair of front and rear swing plates 55 supported at the front and rear end portions of the lifting table 37 so as to swing around the shaft 53, and the shaft 53. Is moved to a mounting member 59 provided below the swinging member 57 such as an air cylinder or an electric motor that swings between the lower position and the standby position of the pseudo core, and a required direction in the orthogonal direction of transfer. It comprises an operation member 61 such as an air cylinder attached at intervals, and an adsorption member 63 provided on the operation shaft of each operation member 61.

The label delivery means 51 swings the swinging plate 55 downward by the operation of the swinging member 61 and cuts the suction member 63 so that the label 1 supported by the label support plates 41a and 41b has a required interval. Then, the operating member 61 is operated to move the suction member 63 downward to suck and hold the label 1.

Next, the label punching action and method by the label cutting device 3 will be described.
First, the outline of the melt cutting of the label 1 by laser light will be described. The label sheet 5 led out from the sheet roll 13 passes between the lifting table 37 and the regulating plate 49 on the upper surface of the main body frame 11 by each turning roll 19. Then, it is stretched so as to be wound around the take-up reel 17. In the above state, the label sheet 5 positioned above the main body frame 11 has a predetermined interval with respect to the laser beam output means 9 so that the laser beams output from the laser beam output heads 29a and 29b converge to a required beam diameter. And stretched horizontally.

  When the label ground 5a printed on the label sheet 5 in the above state is transferred to a predetermined position below the laser beam output means 9, the first movable body is controlled by driving the first electric motor 37b and the second electric motor 39b. 23 and the second movable body 27 are moved, and the laser light output heads 29a and 29b are moved in the two-dimensional direction of the transport orthogonal direction and the transport direction, and the laser light output from the laser light oscillation members 35a and 35b is labeled. Irradiate along the outer shape of 5a and melt cut. (See Figure 5)

  Whether or not the label ground 5a of the label sheet 5 has been transferred to a position below the laser beam output means 9 at the time of the cutting is determined by optically detecting the label ground 5a or mark of the label sheet 5 by an optical detection means (not shown). A method for detecting and positioning the position detection hole formed in advance in the label sheet 5 corresponding to the label place 5a by the optical detection means, and a method for positioning by the optical detection means, and transporting by the imaging means (not shown) Any of the methods of imaging the label portion of the label sheet 5 and recognizing the shape and positioning it may be used.

Next, when the label 1 is melted and cut from the label sheet 5, the swing member 57 is operated to swing the swing plate 55 from the standby position of the pseudo core to the take-out position above the cut label 1, The operating member 61 is operated to move the suction member 63 downward to hold the label 1 by suction. After the above operation, the operation member 61 is moved backward to move the suction member 63 holding the label 1 by suction upward and taken out from the lifting table 37, and then the swing member 57 is moved back to move the swing plate 55. The label 1 held on the suction member 63 is swung to the standby position so that it can be delivered to the pseudo core. (See Figure 6)

After the above operation, the take-up reel 17 is intermittently rotated to wind up the scrap sheet 5b from which the label 1 has been melted and cut in the amount of one label 1, and then the label 5a to be melted and cut by the laser beam. After being positioned below the laser beam output means 9, the laser beam is output and scanned along the outer shape of the label ground 5 a in the label sheet 5 in the same manner as the above operation to melt and cut the label 1.

At the time of melting and cutting the label 1 by the laser beam, the label-sheet 5 is clamped and fixed as follows at the cutting position. That is, when the label ground 5a of the label sheet 5 is transferred to the cutting position, the lifting operation member 47 is operated to move the lifting body 45 upward, and the label sheet 5 positioned on the upper surface of the lifting table 37 is moved to the regulating plate 49. Press to pinch and fix. On the other hand, after the melt cutting of the label 1, the elevating operation member 47 is moved back to move the elevating body 45 downward to form a gap with the regulating plate 49 to enable the transfer of the label sheet 5. . (See Figure 7)

When the label sheet 5 is melted and cut, the label base 5 a of the label sheet 5 is supported on the label support plates 1 a and 41 b in the recess 37 a formed on the upper surface of the lifting table 37. That is, the label support plates 1a and 41b are similar in size to a size slightly smaller than the label 1 to be melted and cut, and the outer edge of the label base 5a irradiated with the laser beam converged on the label base 5a. Is supported in a non-supported state.

For this reason, the laser beam irradiated along the outer edge of the label 5a is reflected upward by the bottom surface of the recess 37a with the gap between the label support plates 1a and 41b after the label sheet 5 is melted and cut. However, since the reflected label sheet laser light is irradiated on the label sheet 5 without being converged, the label sheet 5 is prevented from being melted by the reflected laser light, and the melt-cut label It is possible to improve the cutting accuracy by preventing the outer edge of 1 from being melted again by the reflected laser beam. (See Figure 8)

Further, when the label sheet 5 is melted and cut, the synthetic resin component or the printed ink component may be carbonized by the heat of the laser beam and attached to the outer edge of the label 1. In this example, as described above, the outer end edge of the label base 5a of the label sheet 5 is supported with respect to the label support plates 1a and 41b in an unsupported state, and thus in a state of floating in the recess 37a. Therefore, it is possible to prevent the synthetic resin component and the ink component carbonized by the heat of the laser light from falling into the recess 37a and adhering to the outer edge of the cut label 1.

  In the present embodiment, when the label 1 is cut from the label sheet 5, the high accuracy of the label is obtained by melting and cutting with a laser beam scanned along the outer edge of the label base 5a in a non-contact state with respect to the label sheet. Can be cut with. Further, when the label sheet 5 is melted and cut, the label support 5a is supported by the label support plates 1a and 41b with the outer edge of the label base 5a being unsupported, and the reflected light of the laser beam to be scanned is melted and cut. It is possible to prevent the outer edge side of the label 1 from being irradiated and melted, and to improve the cutting accuracy of the label 1. Furthermore, the label 1 is excellent in cutting accuracy by preventing the synthetic resin component and the ink component carbonized by the heat of the laser beam during the melt cutting of the label sheet 5 from dropping into the recess 37a and adhering to the outer edge of the label 1. Can be formed.

  In the above description, the laser light oscillation members 35a and 35b are connected to the respective laser light output heads 29a and 29b to output the laser light to the label sheet 5, respectively. The output laser light may be split by a reflecting mirror, a semi-transparent mirror, etc., guided to the respective laser light output heads 29a and 29b, and irradiated to the label sheet 5 with the laser light.

  Further, when the label sheet 5 is melted and cut by the laser light output from the laser light output heads 29a and 29b, an air injection nozzle (not shown) provided integrally with or separately from the laser light output heads 29a and 29b. Alternatively, the outer end of the melted label 1 may be instantaneously cured by spraying compressed air toward the label sheet 5.

  In the above description, the recess 37a is formed in the lift table 37, and the label support plates 41a and 41b are mounted in the recess 37a with a height relative to the bottom surface of the recess 37a, or the label on the lift table 37 The groove 37b is formed on the outer edge of the support projecting surfaces 41c and 41d so that the reflected laser light from the bottom surface of the recess 37a or the bottom surface of the groove 37b is prevented from converging on the cut label 1. A structure in which the bottom surface of the recess 37a or the bottom surface of the groove 37b is colored with a color that absorbs laser light to absorb the laser light applied to the label sheet 5 and restrict reflection on the label 1, or label support Openings are formed in the lifting table 37 corresponding to the outer edges of the plates 41a and 41b and the lifting table 37 corresponding to the outer edges of the label support protrusions 41c and 41d, and the label sheet 5 is irradiated with the label 1 The laser light sectional and translucent outside elevator table through the opening may be configured to avoid reflection of the laser beam.

  Further, the lifting table 37 is provided with an exhaust duct communicating with the inside of the recess 37a or the groove 37b, and the constituent resin component and the ink component carbonized by the heat of the laser beam when the label 1 is cut from the label sheet 5 It is good also as a structure which forcibly sucks and discharges.

  Furthermore, a suction hole connected to a negative pressure generation source is formed in the label support plates 41a and 41b or the label support protrusions 41c and 41d, and the label 1 cut by the laser beam is sucked to label the support plate 41a. -It is good also as a structure made to adsorb-hold on 41b or label support protrusion 41c * 41d.

DESCRIPTION OF SYMBOLS 1 Label 3 Label cutting device 5 Label sheet 5a Label base 5b Scrap sheet 7 Label sheet supply winding means 9 Laser beam output means 11 Main body frame 11a Opening part 13 Sheet roll 15 Tension roll 17 Take-up reel 19 Turning roll 21 Guide rail 23 First movable body 25 Guide rail 27 Second movable body 29a / 29b Laser light output head 31 First moving member 31a Feed screw 31b First electric motor 33 Second moving member 33a Feed screw 33b Second electric motor 35a / 35b Laser light Oscillating member 37 Lifting table 37a constituting part of label supporting means Recess 37b Grooves 41a and 41b Label supporting plates 41c and 41d constituting part of label supporting means Label support projecting surface 43 Guide rail 45 Lifting body 45a Guide shaft 45b Elastic member 47 Moving member 49 regulating plate 51 label transfer means 53 shaft 55 swing plate 57 swing member 59 the mounting plate 61 the actuating member 63 the suction member

Claims (7)

Labels Labels locations desired shape for use in in-mold label molding punched against pseudo core for mounting the label areas in the mold after punching the label areas of a number printed label sheet toward the conveying direction In the label punching device that supplies the ground ,
The label sheet from the sheet roll label sheet is wound around, wound and transported in the feeding amount of the label one land fraction, and a label sheet feeding winding means for positioning the cutting position to the label area,
A support part having a similar shape whose plane is slightly smaller than the label ground is provided in the recess formed at the cutting position, and the support part supports the label ground on the label sheet so that the outer edge is not supported. Label support means for
Are arranged in the transport direction upstream side of the label sheet, a laser beam output means for outputting to melt cutting the label areas to converge laser light along a contour of the label locations relative to the label areas of the label sheet to be transported ,
First and second moving members for moving the laser light output means in the transfer direction and the transfer orthogonal direction;
With
When the label ground of the label sheet is transferred to the cutting position by the label sheet supply winding means and supported on the support portion, the laser beam output means is moved in the transfer direction and the transfer orthogonal direction by the first and second moving members. The laser beam that moves and converges on the label sheet is scanned along the outline of the label ground so that the label ground can be melted and cut, and is irradiated so as to converge along the outline of the label ground and pass through the label sheet. An in-mold label-forming label cutting device that can control the melting of the label sheet by reflecting the laser beam that is reflected from the bottom of the recess and making the laser beam unable to converge on the label sheet . In claim 1,
The laser beam output means moves 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, and transmits the laser beam from the laser beam output head to the label ground on the label sheet . A label cutting device for forming an in-mold label that melts and cuts by outputting so as to converge along the outer shape . In claim 1,
A label cutting apparatus for forming an in-mold label, in which a label row in which a number of label sites are printed at an appropriate interval in the transport direction is arranged at least in parallel in the transport orthogonal direction on the label sheet. In claim 3,
Laser light output means
At least two laser light output heads arranged at a predetermined interval relative to the label sheet to be transferred, and arranged at an interval corresponding to each label row in the label sheet in the direction orthogonal to the transfer;
A head moving mechanism for moving each laser light output head in the transfer direction and the transfer orthogonal direction; a laser light oscillation member for outputting laser light to each laser light output head;
A label cutting device for forming an in-mold label. In claim 1,
The label support means, the cutting position, the plane to form a groove along the outer shape of similar shape slightly smaller size than the label areas, labels locations label sheet by the support portion of the support protruding surface surrounded by the groove The outer edge of the label ground in the label sheet is made unsupported by the groove and can be supported,
A label cutting apparatus for forming an in-mold label, in which laser light that has been irradiated so as to converge on the label sheet and passed through the label sheet is reflected by the bottom surface of the groove , so that the laser light cannot be converged on the label sheet . In the label cutting method for in-mold label molding in which each label base is cut from a label sheet on which a number of label bases of a desired shape used for in-mold label molding are printed in the transfer direction.
After moving the label sheet to the cutting position by sequentially transferring the label sheet for one label area,
For the label ground of the label sheet whose outer edge is supported in an unsupported state on the support portion having a similar shape with a size slightly smaller than the label ground provided in the recess formed at the cutting position, The laser beam output from the laser beam output means moving in the transfer direction and the transfer orthogonal direction is scanned so as to be converged along the outer shape of the label base, and the label base can be melted and cut to form a label. A label cutting method for forming an in-mold label, in which the laser beam that has passed through the label sheet is reflected by the bottom surface of the recess and cannot be converged on the label sheet, thereby making it possible to regulate the melting of the label sheet. In claim 6,
The label ground of the label sheet transferred to the cutting position is removed by the support portion of the support projecting surface surrounded by a groove along a similar outer shape in which the plane formed at the cutting position is slightly smaller than the label ground. Support the edge to be in an unsupported state,
A label cutting method for forming an in-mold label in which laser light that has been irradiated so as to converge on the label sheet and passed through the label sheet is reflected by the bottom surface of the groove so that the laser light cannot be converged on the label sheet.

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