JP5729752B2 - Label sheet transfer apparatus and label sheet transfer method in label cutting apparatus for in-mold label forming - Google Patents

Description

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

  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. Document 1 is known. The in-mold label forming system shown in Patent Document 1 includes a label original supply unit for supplying a label sheet (label material), and a cylindrical lower mold located below the label sheet supplied from the label original supply unit A hollow punch that forms a label by punching a label sheet between the lower mold, a suction head that moves up and down in the punch and sucks the label, and is placed under the suction head A label suction transport line that receives the label from the head and transports it, and a label winding section that receives the label from the label suction transport line and sucks and winds the label around the outer periphery of the label holding core. A synthetic resin is injected in a state where the label holding core wound with is inserted into a mold to form an in-mold label container.

  In the in-mold label forming system, the label sheet supplied from the label original fabric supply unit is punched into a desired developed shape with a lower die and a punch, and then wound with a winding width of one label and then cut. The label location to be used is supplied to the label cutting position.

However, in the case where the label sheet is wound up after the label is cut and formed and supplied to the label cutting position after the label is cut and formed as in the in-mold label forming system described above, the label is punched out from the punched portion. Since the tensile strength and elongation of the label sheet are significantly different from those of the parts that do not, the label sheet cannot be transferred in a straight line in the transfer accompanying winding, and it has a problem of being transferred while meandering or generating wrinkles. . As the label sheet is wound, the amount of deviation due to meandering increases, and it becomes difficult to accurately position the label portion to be cut next with respect to the label cutting position. As a result, the label cannot be cut into a regular shape. There was a fear.

JP 2009-126137 A

The problem to be solved is that when the label sheet is taken up after the label is cut and fed to the label cutting position as in the in-mold label forming system, the portion where the label is punched Since the tensile strength and elongation of the label sheet differ greatly from the unpunched part, the label sheet cannot be transferred linearly when transported along with winding, and it is transported in a biased state with meandering or wrinkles. As the label sheet is rolled up, the amount of deviation is accumulated, making it difficult to position the label portion to be cut next to the label cutting position with high positional accuracy, and the label cannot be cut into a regular shape. In the point.

According to a first aspect of the present invention, a label portion of 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 transferred to a predetermined label cutting position by a transfer means. In an in-mold label forming label cutting apparatus that forms a label by cutting a location with a label cutting means, the transfer means is a movable body that is supported on the main body so as to be movable in the transfer direction of the label sheet, and the movable body A moving member that reciprocates by the label width in the label sheet transfer direction, a lower side of the movable body in the transfer direction, and both ends of the label sheet in the transfer orthogonal direction and portions spaced outward from both ends of the transfer orthogonal direction. a support member provided to reciprocally move the transport perpendicular direction between, the support member transport direction orthogonal both end portions of the label sheet and outwardly from the opposite ends A lateral movement member which reciprocates between the positions between, provided to be vertically movable relative to the support members, which can grip the transport orthogonal direction end portions of the label sheet which is positioned between the corresponding support member Main features include a gripping member and a vertically moving member that moves the gripping member in the vertical direction with respect to each support member and grips both ends of the label sheet in the orthogonal direction in cooperation with the support member. To do.

According to an eighth aspect of the present invention, a label portion of 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 transferred to a predetermined label cutting position by a transfer means. When cutting an in-mold label forming label in which a portion is cut by a label cutting means to form a label. The support member and the gripping member that are respectively separated from the both ends of the label sheet in the transfer orthogonal direction to the outside are moved to both ends of the label sheet in the transfer orthogonal direction, and the both ends of the label sheet in the transfer orthogonal direction are positioned between the support member and the holding member. 2. 2. Grip the corresponding gripping member to each support member in a direction to contact each other to grip both ends of the label sheet in the direction perpendicular to the transport direction of the label sheet. The main feature is that the movable body is moved in the transfer direction of the label sheet by the width in the transfer direction for one label, and the label sheet is transferred so that the label portion is located at the label cutting position. And

  In the present invention, even if the tensile strength and the elongation amount are greatly different between the portion where the label is punched and the portion where the label is not punched, the label sheet is reliably transferred in a straight line while preventing wrinkles. The label portion to be cut can be reliably supplied to the label cutting position with high positional accuracy.

It is a perspective view which shows the outline of the label cutting device for in-mold label formation. It is explanatory drawing which shows a laser beam cutting means and an optical path. It is a general body perspective view which shows the outline of a transfer means. It is explanatory drawing which shows a raising / lowering means. It is 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 transfer means at the time of label cutting. 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 hold | maintained label make it oppose to a pseudo core. (A) is explanatory drawing which shows the state which lowered | hung the holding plate, (B) is explanatory drawing which shows the state which moved the holding plate inside, (C) is explanatory drawing which shows the holding state of a label sheet. It is explanatory drawing which shows the transfer effect | action of a label sheet. 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, the support member moved to the outside in the orthogonal direction of movement by operating the left and right moving member is moved inward to be positioned at both ends in the orthogonal direction of transfer of the label sheet, and then the vertical movement member is operated and gripped. The member is moved upward to clamp both ends of the label sheet in the direction perpendicular to the transport direction. Next, the moving member is actuated to move the movable body toward the lower side in the transfer direction to transfer and supply the next label portion of the label sheet to the cutting position.

The present invention will be described below with reference to the drawings showing examples.
As shown in FIGS. 1 to 6, 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 the label sheet from which the label 1 has been cut. Label sheet supply winding means 7 for winding 5, laser beam cutting means 9 as a label cutting means for cutting a label 1 having a desired shape formed in-mold from the label sheet 5, and a label cut from the label sheet 5 1 is constituted by delivery means 13 for delivering 1 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, and movement control is performed between a delivery position described later and the mold of the resin molding machine. Is done. In this example, two pseudo cores 11 with a predetermined interval are arranged in parallel so as to match the two cavities formed in the mold. Each pseudo core 11 is connected to a negative pressure source (not shown) with an outer shape corresponding to an in-mold label molded product (not shown), and is cut through a number of suction holes 11a formed on the outer peripheral surface. The label 1 is sucked under a negative pressure and held in a surrounding winding state that is deformed so as to match the outer shape of the in-mold label molded product.

  An opening formed in the center of the table surface of the main body 15 in the label cutting / delivery device 3 is formed with a width of one label 1 in the left-right direction shown in the figure and a width of two labels 1 in the front-rear direction shown in the figure. 15a is formed, and a lifting table 17 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 a guide rail 21 fixed so as to extend in the vertical direction in the main body 15 corresponding to the lower portion of the opening 15a, and the elevating means supported by the guide rail 21 so as to be moved in the vertical direction. It comprises a body 23 and a lifting operation member 25 such as an air cylinder which is connected to the lifting body 23 and moves up and down. A guide shaft 23a having an axis line in the vertical direction is slidably supported on the lifting body 23. The guide shaft 23a is mounted with an elastic member 23b such as a coil spring, and the upper end portion of the lifting table 17 Fixed to the bottom surface.

  In addition, a pair of left and right regulating plates 27 extending in the illustrated front-rear direction 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 17 moves 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 a 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 is on the upper side and lower side in the transport direction of the main body 15. After being supported in a horizontal state on the table surface of the main body 15 by a pair of upper and lower feed rolls 31 a and 31 b provided respectively on the main body 15, the take-up reel 33 provided inside the main body 15 is wound up.

A tension roll (not shown) is provided in the path of the label sheet 5 led out from the sheet roll 29, and a predetermined tension is applied to the led label sheet 5 to be tensed. Further, 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 a positioning mark (not shown) printed in advance on the label location of the label sheet 5 (not shown). A method of positioning optically detected by a not shown), a method of detecting and positioning a position detection hole (not shown) previously formed at the location of the label 1 in the label sheet 5 by an optical detecting means, an imaging means ( Any method may be used in which positioning is performed by imaging and recognizing the shape of one label in the label sheet 5 transported by an unillustrated label sheet 5.

The label sheet 5 is a thin synthetic resin sheet, paper sheet, or the like, and a large number of labels 1 having a desired pattern are arranged in two parallel rows with respect to the transport orthogonal direction (front-rear direction) and the transport direction (left-right direction). A sheet printed at a predetermined interval. Note that the number of labels 1 (number of prints) in the direction perpendicular to the transport direction of the label sheet 5 is not limited to the two parallel rows described above, and may be three parallel rows, four parallel rows, or the like.

  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 is attached to the main body 15 by a first movable body 37 that is movably supported by a guide rail 35 that extends and is fixed in the 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 as a movable body movably supported by a guide rail 39 that extends and is fixed in the transfer direction, and labels one and one 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 provided at an interval of minutes, a first moving member 45 that reciprocates the first movable body 37 in the transfer orthogonal direction, and the second movable body 41 described above. It comprises a second moving member 47 that constitutes a moving member that reciprocates in the transfer direction, 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 have 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 45a. First and second electric motors 45b and 47b, such as numerically controllable servo motors, which are drivingly connected to 47a, rotate as the electric motors 45b and 47b rotate. The first and second movable bodies 37 and 41 are reciprocated by the feed screws 45a and 47a. The first and second moving members 45 and 47 may be known belt mechanisms, planar linear motors, 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 reflecting 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 incident laser light by a total reflection plate (not shown) arranged 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 can be expanded and contracted. The telescopic second light guide member 57 is connected to the first reflecting member 51. The second reflecting member 55 reflects incident laser light in the transport direction by a total reflection plate (not shown) arranged at an angle of 45 degrees, and turns the optical path of the laser light 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 type of telescopic type. The third light guide member 61 is connected to the second reflecting member 55.

The other laser beam output head 43b 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 a laser irradiated in the transport 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 transport direction. A part of the 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 transport orthogonal direction with respect to the spectroscopic member 59, and the third reflecting member 65 is one of the lasers described above. The optical output head 43a is 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 optical output head 43a.

Each of the laser beam output heads 43a and 43b described above reflects and reflects the incident laser beam so that the optical axis of the laser beam is directed in the vertical direction by a built-in total reflection plate (not shown). The laser beam is converged at a required spot diameter on the label sheet 5 transferred to the cutting position by a built-in optical lens (not shown).

  On the both sides of the front end portion of the second movable body 41, the leading end of the label sheet 5 extends in the transport direction of the label sheet 5 so as to be located on the lower side in the transport direction than the laser light output heads 43a and 43b. A pair of left and right transfer arms 71 constituting a part of the transfer means located at both ends in the orthogonal direction are fixed, and attachments constituting a part of the transfer means extending in the transfer orthogonal direction are attached to the distal ends of these transfer arms 71 The plate 73 is fixed. Support members 75 constituting a part of the transfer means are supported at both ends of the mounting plate 73 corresponding to both ends in the transfer orthogonal direction of the label sheet 5 so as to move to the outside in the transfer orthogonal direction with a predetermined stroke, Each support member 75 is moved by a right and left moving member 77 such as an air cylinder or an electromagnetic solenoid that constitutes a part of a transfer means fixed to both ends of the mounting plate 73.

  Each support member 75 is fixed with a vertically moving member 79 such as an air cylinder, an electromagnetic solenoid or the like that constitutes a part of the transfer means having an axis in the vertical direction. A gripping plate 81 as a gripping member constituting a part of each is fixed. Each gripping plate 81 is in the direction orthogonal to the transfer direction of the label sheet 5 by the cooperation of an elastic plate 81a such as a rubber plate attached to the upper surface of the tip and an elastic plate 75a such as a rubber plate attached to the lower surface of the support member 75. Hold the end.

The delivery means 13 is arranged on the main body 15 corresponding to the upper side of the lifting table 17. The delivery means 13 is attached to a lower portion between the front and rear sliding plates 85 and a pair of front and rear sliding plates 85 supported so as to swing around the shaft 83 at the front and rear end portions of the lifting table 17. An elastic member 87c such as a coil spring is attached to a pseudo mold 87 having two recesses 87a corresponding to the outer shape of the in-mold molded product, and a mounting shaft 87b mounted in each recess 87a of the pseudo mold 87. An adsorption plate 89 as an adsorption member that is provided and attached and connected to a negative pressure source (not shown).

The delivery means 13 is moved by the moving means 91 so that the suction surface of the suction plate 89 comes close to the lifting table 17 and faces in the horizontal direction (cutting position) and is spaced upward from the lifting table 17 in the vertical direction. It is oscillated between the delivery positions that face and face the pseudo core 11 described above. The moving means 91 has a feed screw 93 rotatably supported with an axis in the vertical direction, and a rotary drive member 95 such as a servo motor capable of numerical control for rotating the feed screw 93 in the forward and reverse directions. Each of the sliding plates is fixed to a nut member 97 that is meshed with each of the feed screws 93 and extends in a direction orthogonal to the axis of the feed screw 93, and is fixed to each longitudinal end of the lift body 99. And a cam shaft 101 supported so as to slide with respect to a cam hole 85a formed in 85.

The elevating body 99 is positioned on the front-rear direction side of the feed screw 93 and is supported so as to be slidable with respect to the guide shaft 103 having an axis line in a direction matching the feed screw 93.

Next, the cutting / delivery operation of the label 1 by the label cutting / delivery device 3 and the delivery method to the pseudo core will be described.
First, the label sheet 5 led out from the sheet roll 29 is supported by the tension roll 31 on the table surface of the main body 15 and then wound around the take-up reel 33. In the above 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 swung to the delivery position where the suction plate 77 faces the pseudo core 11.

  When the location of the label 1 printed on the label sheet 5 in the above state is transferred to a predetermined position on the lifting table 17, the lifting operation member 25 is operated to move the lifting body 23 upward by a predetermined stroke, The lifting table 17 is elastically pressed against the regulation plate 27 by the elastic member 23b. As a result, the label sheet 5 positioned between the regulating plate 27 and the lifting table 17 is sandwiched by the elastic force of the elastic member 23b and held flat. (See Figure 7)

  At this time, the grip plate 81 positioned on the lower side in the transfer direction from the holding position by the restriction plate 27 and the lifting table 17 is moved upward by the vertical movement member 79 in a state where the support member 75 is moved outward in the transfer orthogonal direction by the left and right movement member 77. It is moved in the direction and brought into a non-interference state with respect to the label sheet 5 on the main body 15. (See Figure 8)

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 may be softened and stretched by the heat of the laser beam, or may be contracted to make it difficult to accurately melt and cut the label 1. The periphery of the label 1 is sandwiched between the restriction plate 27 and the lifting table 17 to restrict the expansion and contraction of the label sheet 5 at the time of melting and to efficiently radiate the heat of the irradiated laser light by the restriction plate 27 and the lifting table 17. Thus, the thermal expansion and contraction of the label sheet 5 is suppressed, and the label 1 is cut into a predetermined shape.

  The laser light output from the laser light oscillation member 49 is partly changed to the laser light 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. By outputting the laser beam to the laser beam output head 43a, 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. The optical member 61 expands and contracts to enable the laser light output heads 43a and 43b to move 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 95 is driven to rotate the feed screw 93 in a predetermined direction. Then, the elevating body 99 fixed to the nut member 97 is lowered. At this time, as the elevating body 99 is lowered, the cam shaft 101 slides in the cam hole 85a of the sliding plate 85 and swings the sliding plate 85, and hence the delivery means 13, about the shaft 83 in the counterclockwise direction shown in the figure. Then, the suction plate 89 is positioned at the suction position close to the upper surface of the cut label 1.

In the above-described state, the suction plate 89 is operated under negative pressure to suck and suck the cut label 1 adjacent immediately below, and then the lifting operation member 25 is moved backward to lower the lifting table 17 and its upper surface. Is matched with the table surface of the main body 15. (See Figure 9)

Next, the rotary drive member 95 is driven in reverse to rotate the feed screw 93 in the direction opposite to the above to raise the elevating body 99. At this time, the camshaft 101 slides in the cam hole 85a of the sliding plate 85 in the direction opposite to the above as the elevating body 99 rises, and the timepiece shown in FIG. The suction plate 89, which swings in the direction and holds the label 1 by suction, is moved to a delivery position facing the pseudo core 11. (See Figure 10)

When the lifting table 17 is lowered, or while the suction plate 89 is moved to the delivery position, the label sheet 5 is transferred by the transfer width of one label 1, and the next label portion is positioned at the label cutting position. Let That is, when the first movable body 37 and the second movable body 41 are moved back and the laser beam output heads 43a and 43b are returned to the standby position, each gripping plate 81 is outside of the label sheet 5 in the transfer orthogonal direction. The label sheet 5 is spaced upward from the upper surface with a slight width. In this state, the up / down moving member 79 is operated to move the gripping plate 81 downward to be positioned on the lower surface side of the label sheet 5, and then the left / right moving member 77 is operated to move the gripping plate 81 to the inner side in the orthogonal direction of transfer. Move to. As a result, both ends of the label sheet 5 in the direction perpendicular to the transfer position are positioned between the elastic plate 81 a of the grip plate 81 and the elastic plate 75 a of the support member 75.

Next, in the above state, the vertical movement member 79 is moved backward to move the gripping plate 81 upward and grip both ends of the label sheet 5 in the direction perpendicular to the transfer direction by the elastic plates 81a and 75a approaching each other. In addition, when the both ends of the label sheet 5 in the transport orthogonal direction are gripped, the label sheet 5 is moved relative to the transport orthogonal direction by moving the support member 75 outward by moving the left and right moving member 77 backward. It may be held in tension. (See FIGS. 11A to 11C)

Next, the 2nd electric motor 47a is driven in the said state, and the 2nd movable body 41 is moved to a transfer direction. As a result, the label sheet 5 is in a tension state in which both ends in the direction perpendicular to the transport are gripped by the gripping plates 81 and the support members 75, and the label 1 is cut next after being transported linearly in the transport direction. Place the part at the label cutting position. (See Figure 12)
When the label sheet 5 is transferred by the movement of the second movable body 41, the take-up reel 33 is rotated at a speed slightly faster than the transfer speed to take up the label sheet 5 from which the label 1 has been cut.

Next, the pseudo core 11 is moved with respect to the suction plate 89 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 89. Continue moving. At this time, the suction plate 89 moves to the bottom surface side of the recess 87a while resisting the elastic force of the elastic member 87c as the pseudo core 11 is pressed, and causes the pseudo core 11 to enter the recess 87a.

As a result, the label 1 sucked and held on the suction plate 89 is deformed into a substantially box shape matching the outer surface of the pseudo core 11 (the inner surface of the recess 87a) by the cooperation of the inner surface of the recess 87a and the entering pseudo core 11. Is attracted to the outer surface of the pseudo core 11. (See Figure 13)

After the above operation, the suction by the suction plate 89 is released, and the pseudo core 11 is moved backward while being removed from the recess 87a while continuing the suction state of the label 1 by the pseudo core 11, thereby completing the delivery of the label 1. The suction plate 89 is returned to its original position by the elastic force of the elastic member 87c as the pseudo core 11 is detached. (See Figure 14)

  In the present embodiment, after the label 1 is cut from the label sheet 5 transferred to the label cutting position, the second movable body 41 is held in a state where both ends of the label sheet 5 in the direction orthogonal to the transfer are sandwiched between the support member 75 and the holding plate 81. The label sheet 5 meanders with the strength of the part where the label 1 is cut and the part where the label 1 is not cut, so that the next label portion is fed to the label cutting position. And the next label cutting position can be supplied with high accuracy and reliability to the label cutting position.

  In the above description, the laser beam cutting means 9 for cutting the label 1 from the label sheet 5 by the heat of the laser beam output from the label cutting means is described. However, the present invention is based on meandering when the label sheet 5 is wound up and transferred. It is characterized by the transfer means for preventing the displacement and positioning the next label portion with high accuracy and reliability with respect to the label cutting position, and is not limited by the label cutting means.

  Therefore, as the label cutting means, in addition to the laser beam cutting means described above, a label punching means composed of a lower die and a punch arranged in the vertical direction opposite to the label cutting position, and the cutter is transferred at the label cutting position. It may be a label cutting device that cuts a label from a label sheet by controlling movement in a three-dimensional direction of the direction, the orthogonal direction of transfer, and the vertical direction.

  In the above description, the suction plate 89 is elastically supported in the recess 87a of the pseudo mold 87 corresponding to the outer shape of the in-mold label molded product, and when the pseudo core 11 enters the recess 87a, the suction plate 89 The adsorbed label 1 is configured to be deformed so as to match the outer shape of the in-mold label molded product. In the present invention, for example, the label is integrally molded on the outer peripheral surface of the 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. 15, 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 operation 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.

Then, in order to wrap the adsorbed and held label 1 around the outer peripheral surface of the pseudo core 11, as shown in FIG. 16, the adsorbing plate 121 adsorbing and holding the label 1 is placed on the outer peripheral surface of the pseudo core 11 with respect to the central portion in the longitudinal direction. The suction plate 121 or the pseudo core 11 is moved so as to be brought into linear contact. 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.

  In the above description, transfer means are provided on both sides of the front end portion of the second movable body 41, and each end portion of the label sheet 5 in the direction perpendicular to the transfer direction is cut by the lower surface of the holding plate 81 and the support member 75 after the label 1 is cut from the label sheet 5. The second movable body 41 is controlled to move in the transfer direction in a state of gripping the sheet so that the next cutting portion of the label sheet 5 is transferred to the cutting position. The movable body may be provided so as to reciprocate with a predetermined stroke in the transfer direction, and the movable body may be modified with a transfer means having the same configuration as that of the present embodiment.

  In the above description, the label sheet 5 from which the label 1 has been cut is transferred at a distance corresponding to one label 1 by the transfer means according to the present invention. Is wound around a take-up reel 33 that is driven to rotate by an electric motor. For this reason, the transfer means according to the present invention may be configured to transfer the cut label sheet in cooperation with the rotation-driven take-up reel.

  In the above description, the label sheet 5 is held at a distance corresponding to one label 1 while the label sheet 5 is gripped at both ends of the label sheet 5 by the transfer means and tension is applied to the transfer sheet orthogonal direction. Although it is configured to transport, since the label sheet 5 itself is cut and in a hollow state, wrinkles are likely to occur. For this reason, in the present invention, the main body frame or the second movable body corresponding to the upper side of the transfer direction from the gripping position by the transfer means has an axis in the transfer orthogonal direction, and is attached by an air cylinder, a spring or the like as necessary. An urged tension roll is provided, and the label sheet 5 transferred by the tension roll can be pressurized to prevent wrinkling of the label sheet during transfer. In the configuration in which the tension roll is provided on the second movable body, since the transfer means moves integrally with the second movable body, there is no interference during the movement, and the tension roll is securely brought into pressure contact with the label sheet. To prevent wrinkling.

  In the above description, the pseudo-type 87 of the delivery means 13 is configured to swing between the suction position and the delivery position by the cam mechanism, but is connected to the air cylinder and the electric motor above the lifting table 17 as shown in FIG. The upper and lower arms 131 connected to a vertically moving member (not shown) such as a feed screw, and a pseudo-type or suction plate 89 provided in the lower portion of the upper and lower arms 131 (FIG. Is attached by a reversing member 133 that reversely rotates between a cutting position in which the suction surface faces in the horizontal direction and a 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 89 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 89 may be rotated to the above-described cutting position by the rotation shaft 137 of the rotation mechanism to hold the label 1 by suction 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.

DESCRIPTION OF SYMBOLS 1 Label 3 Label cutting delivery apparatus 5 Label sheet 7 Label sheet supply winding means 9 Laser beam cutting means 11 as label cutting means 11 Pseudo core 13 Delivery means 15 Main body 15a Opening part 17 Lifting table 19 Lifting means 21 Guide rail 23 Lifting body 23a Guide shaft 23b Elastic member 25 Elevating member 27 Restriction plate 29 Sheet roll 31a / 31b Feed roll 33 Take-up reel 35 Guide rail 37 First movable body 39 Guide rail 41 Second movable body 43a / 43b as movable body Laser light Output head 45 1st moving member 45a 1st feed screw 45b 1st electric motor 47 2nd moving member 47a which comprises a moving member 2nd feed screw 45b 2nd electric motor 49 Laser beam oscillation member 51 1st reflection member 53 1st Light guide member 55 Second reflection member 57 Second light guide member 59 Spectroscopic member 61 3rd light guide member 63 4th light guide member 65 3rd reflection member 67 5th light guide member 69 6th light guide member 71 The transfer arm 73 which comprises a part of transfer means A part of transfer means is comprised Mounting plate 75 to be supported Support member 75a constituting part of transfer means Elastic plate 77 Left and right moving member 79 constituting part of transfer means Vertically moving member 81 constituting part of transfer means constitute part of transfer means Holding plate 81a as a holding member Elastic plate 83 Shaft 85 Swing plate 85a Cam hole 87 Pseudo mold 87a Recess 87b Mounting shaft 87c Elastic member 89 Adsorbing plate 91 as an adsorbing member Moving means 93 Feed screw 95 Rotating drive member 97 Nut member 99 Lifting body 101 Cam shaft 103 Guide shaft 121 Suction plate 121a Recess 123 Winding bar 125 Actuating member 131 Upper and lower arm 133 Reversing member 135 Only frame 137 rotating shaft

Claims (13)

The label portion of the 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 is transferred to a predetermined label cutting position by the transfer means, and the label portion is cut by the label cutting means. In the label cutting device for in-mold label forming,
The transport means is
A movable body supported so as to be movable in the transfer direction of the label sheet on the main body;
A movable member that reciprocally moves the movable body by a label width in the label sheet transfer direction;
A support member provided on the lower side in the transfer direction of the movable body and between the both ends of the label sheet in the transfer orthogonal direction and the portions spaced from the both ends in the transfer orthogonal direction so as to reciprocate in the transfer orthogonal direction;
A left and right moving member that reciprocally moves the support member between both ends of the label sheet in the direction perpendicular to the transfer direction and positions spaced apart from the both ends; and
A gripping member that is provided so as to be movable in the vertical direction with respect to each support member, and capable of gripping both ends of the label sheet in the direction perpendicular to the transport direction of the label sheet,
A vertically moving member that moves the gripping member in the vertical direction with respect to each supporting member and grips both ends of the label sheet in the direction perpendicular to the transport direction in cooperation with the supporting member;
A label sheet transfer device comprising: In claim 1,
A label sheet transfer apparatus in an in-mold label forming label cutting apparatus, wherein the movable body is movable in the transfer direction and the transfer orthogonal direction, and provided with a label cutting means . In claim 1,
A label in an in-mold label forming label cutting apparatus that cuts and forms a label from a label sheet that has been transferred to a label cutting position by scanning a laser beam output from a laser beam oscillation member in the transfer direction and the transfer orthogonal direction. Sheet transfer device. In claim 1,
A label sheet transfer device in a label cutting apparatus for forming an in-mold label, wherein the cutting means cuts and forms the label from the label sheet transferred to the label cutting position by controlling the movement of the blade in the transfer direction and the transfer orthogonal direction . In claim 1,
An in-mold label is formed by a pair of punching dies that are relatively arranged with a label sheet sandwiched at a label cutting position and the other is separated from the other, and the label is removed from the label sheet transferred to the label cutting position. Label sheet transfer device in forming label cutting device. In claim 1,
A label sheet transfer apparatus in an in-mold label forming label cutting apparatus provided with a label cutting delivery means for holding a label cut from a label sheet and delivering it to a pseudo core for mounting the label in a mold. In claim 1,
A label cutting device for in-mold label molding which prevents the occurrence of wrinkles of the transferred label sheet by providing a tension roll in pressure contact with the label sheet transferred on the main body according to the upper side in the moving direction of the movable body Label sheet transfer device. The label portion of the 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 is transferred to a predetermined label cutting position by the transfer means, and the label portion is cut by the label cutting means. When cutting in-mold label forming labels to form labels,
1. The support member and the gripping member that are respectively separated from the both ends of the label sheet in the transfer orthogonal direction to the outside are moved to both ends of the label sheet in the transfer orthogonal direction, and the both ends of the label sheet in the transfer orthogonal direction are positioned between the support member and the holding member. ,
2. The gripping members corresponding to the respective support members are moved in the direction in which they are in contact with each other, and gripping both ends of the label sheet located in the direction perpendicular to the transport direction between the two,
3. Move the movable body in the label sheet transport direction with the width in the transport direction for one label, and transport the label sheet so that the label location is located at the label cutting position.
4. A label sheet transfer method comprising the above 1 to 3. In claim 8,
An in-mold label in which the movable body is provided so as to be movable in the transfer direction and the transfer orthogonal direction, and the movable body is provided with a label cutting means, and the movable body and the label cutting means can be moved integrally in the transfer direction and the transfer orthogonal direction. A label sheet transfer method for cutting a forming label. In claim 8,
The cutting means scans the laser beam output from the laser beam oscillation member in the transfer direction and the transfer orthogonal direction to cut the label for in-mold label forming, which cuts and forms the label from the label sheet transferred to the label cutting position. Label sheet transfer method. In claim 8,
A label sheet transfer method for cutting an in-mold label forming label in which the cutting means cuts and forms the label from the label sheet transferred to the label cutting position by controlling the movement of the blade in the transfer direction and the transfer orthogonal direction . In claim 8,
An in-mold label is formed by a pair of punching dies that are relatively arranged with a label sheet sandwiched at a label cutting position and the other is separated from the other, and the label is removed from the label sheet transferred to the label cutting position. A label sheet transfer method for cutting a forming label. In claim 8,
A label sheet transfer method for cutting an in-mold label forming label provided with a label cutting delivery means for holding a label cut from a label sheet and delivering it to a pseudo core for mounting the label in a mold.

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