JP5950475B2 - Integrated marking device - Google Patents

Description

  The present invention relates to an integrated marking device capable of knurling metal foil and film. In particular, sufficient uneven knurling can be performed in a high melting point film, a high hardness film, and a high-speed production line.

  Conventionally, in a device for inspecting a defect such as a metal foil or a film, when a defective portion is found, a label is attached, a mark is made with a magic ink, or a mark is made by an ink jet printer or the like, and after the inspection It was rolled back and used as a guide for the defect location.

  However, since the film can be reproduced, the glue may remain on the film when removing the attached label. Also, in the case of a film with magic ink or ink jet ink, In some cases, the relevant part was removed and pulverized to be used again as a raw material.

  In addition, devices that detect defects such as metal foil may be subjected to high-temperature treatment after inspection of metal foil, etc. When using heat-resistant labels, heat-resistant ink, etc., heat resistance (heat-resistant (Maximum temperature: about 240 ° C.), and a marking means capable of handling at a high temperature was necessary.

  Furthermore, in a device for detecting film defects, when unevenness of a film is sandwiched between rolls and markings are made on a roll or flat, it may be difficult to mark unevenness on a hard film, etc. there were. Further, in the case of continuous knurling, there is a case in which the convex portion sags after winding or a shift in the width direction occurs. Further, it is a high melting point film, and it is difficult to ensure a sufficient marking height in the process of the apparatus for inspecting the film at high speed.

  As for the means for heating the roller having the protrusion, the shaft heating method by heat conduction is taken from the rotation shaft of the roller, the efficiency of heat transfer to the protrusion surface is poor, and the rotation shaft itself must be at a high temperature. Moreover, since it takes time to transfer heat from the shaft to the projecting surface, a delay in responsiveness becomes a problem, and appropriate temperature adjustment cannot be performed.

  Furthermore, since the conventional knurling apparatus has been incorporated from the beginning as a part of a film production line component apparatus, it has not been possible to newly install a knurling apparatus in an existing line process.

  Therefore, it is necessary to provide a knurling device having an integral structure, and the metal foil is knurled between a roller having a protrusion and two heat-resistant rubber rolls, and the film has a protrusion. An apparatus having an integral structure has been desired so that effective knurling can be performed by heating the projection surface itself by induction heating of the roller.

JP 2013-136201 KNRLING PROCESSING DEVICE AND KNRLING PROCESSING METHOD

  Provided is an apparatus capable of knurling twill or flat irregularities without sticking a label of a mark on a metal foil and a film and without marking with ink or the like.

  Further, the present invention provides an apparatus that can efficiently perform knurling even on a high melting point film, a hard film, a thick sheet, and the like, and an integrated apparatus that can be easily installed in an existing apparatus.

  Further, the present invention provides an apparatus that can heat a roller having a protrusion from the surface of the protrusion surface, measure the surface temperature with a radiation thermometer, and perform appropriate temperature adjustment.

According to a first aspect of the present invention, in a marking device comprising a base plate, a roller lifting cylinder provided on the base plate, and a roller having a protrusion that can be lifted and lowered by the roller lifting cylinder, the roller having the protrusion A U-shaped or notched circular induction heating coil for heating the projection surface was provided, and the film was sandwiched between the roller having the projection and two heat-resistant rubber rolls, and an integral structure marking device was provided that knurled.

In the second aspect of the invention, the marking device has an integral structure in which the roller having the protrusion can be continuously raised or lowered by the roller lifting cylinder.

In the third invention, the marking device has an integral structure provided with a radiation thermometer for measuring the surface temperature of the projection surface of the roller having the projection.

In the fourth invention, in a state where the roller having the protrusion is raised by the roller lifting cylinder, the roller having the protrusion is rotated by a rotation motor, and the protrusion surface of the roller having the protrusion is formed into the U-shape or the notch circle. The marking device has an integral structure that can be heated uniformly by the induction heating coil.

In the fifth aspect of the present invention, the marking device has an integral structure provided with an adjusting mechanism capable of adjusting the surface contact pressure of the knurling by moving the two heat resistant rubber rolls.

In a sixth aspect of the present invention, the marking device has an integral structure that adjusts the air pressure of the roller raising / lowering cylinder with a regulator to adjust the height of the knurling on the roller having the protrusion.

  According to the present invention, it is possible to knurling metal foils, etc., even if high temperature processing is performed in the process after inspection and marking, uneven knurling will not disappear, and at the time of inspection and defective parts are automatically discharged. It was possible to make it a landmark.

  In addition, for a film or the like, a roller having a protrusion can be heated by a U-shaped or notched circular induction heating coil, and the surface temperature of the protrusion can correspond to a set temperature in a high temperature range of 100 ° C to 300 ° C. High-melting point films and high-hardness films can be knurled with sufficient unevenness.

  In addition, since two heat-resistant rubber rolls for sandwiching the metal foil and the film are provided, the contact surface with the roller having the protrusion can be set at two places so that the knurling process in the high-speed production line can be efficiently performed. Became.

  Furthermore, by directly heating the protrusions of the roller, the influence of the radiant heat of the roller can be reduced as compared with the air-core coil, so that the coil heat protection measures and maintenance management are easy.

Plan view of the integrated marking device of the present invention Side view of the integrated marking device of the present invention The figure which shows the state which installed the marking apparatus of the integral structure of this invention in the both ends of the film The figure which shows the state which installed the marking apparatus of the integral structure of this invention 4 series. The figure which shows the state which carried out the uneven | corrugated knurling continuously on both ends of the film The figure which shows the state which carried out the uneven | corrugated knurling corresponding to the defective part in the edge part of a film The figure which shows the state which provided the slit which cut | disconnects a film by providing four continuous marking apparatuses of this invention, giving uneven | corrugated knurling. Explanatory drawing which shows the state which waited for the roller which has protrusion of the marking apparatus of the integral structure of this invention Explanatory drawing which shows the state which is knurling with the roller which has protrusion of the marking device of the integral structure of this invention The figure which shows the state which adjusted the heat resistant rubber roller of the marking apparatus of the integral structure of this invention The figure which shows the U-shaped induction heating coil of this invention The figure which shows the notch circular induction heating coil of this invention

  In FIG. 1, reference numeral 1 denotes a base plate, and reference numeral 2 denotes a roller lifting cylinder provided on the base plate 1. Reference numeral 3 denotes a roller having protrusions that can be moved up and down by a roller lifting cylinder 2.

  Reference numeral 4 denotes a heat-resistant rubber roll, which is made of a material such as soft rubber. Two heat-resistant rubber rolls 4 are arranged so as to be in contact with the roller 3 having a protrusion.

  The roller 3 having a protrusion can be a roller having a conical protrusion, and can be combined with a soft rubber roll having a concave groove to make a hole in a metal foil or the like.

Reference numeral 5 denotes a metal foil or film, which is a target material to be marked or knurled.
The target material includes a thick sheet.

  The metal foil or film 5 is sandwiched between a roller 3 having protrusions and two heat-resistant rubber rolls 4 so that uneven marking or knurling is performed.

  Marking can be performed by continuously lowering the roller 3 having protrusions by the roller raising / lowering cylinder 2 and can be partially marked by intermittently raising and lowering. The raising / lowering can be selected by a digital switch or a touch panel. The same applies to the case where the knurling is performed continuously.

  The roller 3 having a protrusion is induction-heated by a U-shaped or notched circular induction heating coil 6. Temperature setting and temperature adjustment are performed by a temperature controller. The radiation thermometer 7 is provided so as to measure the temperature of the projection surface of the roller 3 having the projection. Since the temperature of the projection surface of the roller 3 having the projection can be directly measured by the radiation thermometer 7, the temperature control can be performed without time difference. Temperature setting and temperature control are performed with a temperature controller, a radiation thermometer signal is input to the temperature controller, and the controller board for the U-shaped or notched circular induction heating coil is turned ON / OFF with the temperature controller. Maintain the set temperature in the range of 100 ° C to 300 ° C.

  Further, the U-shaped or notched circular induction heating coil 6 has a U-shaped shape as shown in FIG. 11, a notched circular shape and other shapes as shown in FIG. In particular, in the U-shape and the cutout circle, there are few proximate portions with the projection surface of the roller 3 having projections, and the metal foil or film is between the induction heating coil 6 and the projection surface of the roller 3 having projections. Entanglement can be minimized.

  In the case of an air-core type coil, it must be arranged so as to cover the protruding portion of the roller having the protrusion, the gap between the protruding surface and the coil is as narrow as 3 mm, and the surface temperature of the protruding surface is from 100 ° C. At a high temperature of 300 ° C, the entire surface of the coil receives radiant heat. For this reason, the heat resistance temperature of the coil is greatly exceeded. In addition, since there is a risk of biting a film, foreign matter, etc., the structure is complicated because it needs to be protected and cooled with heat-resistant tempered glass or the like.

  On the other hand, when a U-shaped or notched circular induction heating coil is used as in the present invention, a 5 mm gap can be provided between the protruding surface of the roller having the protrusion and the U-shaped or notched circular induction heating coil, Since the high-temperature radiant heat of the projection surface is received only at the tip of the U-shaped open portion, the tip portion 5 mm is less affected directly by the radiant heat only at the ferrite core portion. In addition, since the gap is narrow only at the U-shaped opening, the risk of biting in a film, foreign matter, etc. is low, and it can be handled with a simple protective structure, so that maintenance is easy.

  In addition, by providing two heat-resistant rubber rolls 4, it is possible to sandwich the roller 3 having protrusions in two stages, and knurling with sufficient unevenness even in a high melting point film, a hard film, and a high-speed production line. Became possible.

  Further, by finely adjusting the heat-resistant rubber roll 4 by the adjusting mechanism 10, the pressure of the surface contact with the roller 3 having the protrusion can be adjusted, and the metal can be applied only to one of the two heat-resistant rubber rolls 4. The foil or film 5 can be knurled. The metal foil or film 5 includes a thick sheet.

  Reference numeral 11 denotes a regulator which can adjust the height of the concave and convex marks to adjust the air pressure of the roller lifting cylinder 2.

FIG. 2 is a side view of the integrated marking device of the present invention. 8 is a roller rotating motor, and 9 is a roller rotating gear.
The roller 3 having a protrusion can be rotated during standby.

  FIG. 3 is a view showing a state in which the marking device having an integral structure of the present invention is installed at both ends of the film. Marking devices are installed at both ends of the film so that marking or knurling can be applied to both ends of the film.

FIG. 4 is a view showing a state in which four integrated marking devices of the present invention are installed.
This is a case where four marking devices are installed. In this case, the heat-resistant rubber roll 4 is installed by the heat-resistant rubber roll receiver 15.
The marking device can be used not only as a single unit but also as two or more units.

FIG. 5 is a view showing a state in which unevenness is knurled continuously at both ends of the film.
The metal foil or film 5 is provided with an uneven mark 12 for marking or knurling. As for the length of the marking, the descent time of the roller raising / lowering cylinder 2 can be selected by a digital switch or a touch panel, and the same can be done for continuous marking and knurling.

  FIG. 6 is a view showing a state in which unevenness corresponding to the defect portion is knurled at the end portion of the film. The concave / convex mark 12 can be attached at a position corresponding to a defective portion 13 such as dirt or scratches.

  FIG. 7 is a view showing a state in which four integrated marking devices of the present invention are installed, uneven knurling is performed, and slits for cutting the film are provided. After the uneven knurling, it can be cut with a slitting cutter 14. After slitting, knurling can be easily performed by installing two sets of the marking device.

  FIG. 8 is an explanatory view showing a state where a roller having a protrusion of the integrated marking device of the present invention is in a standby state, and FIG. 9 is a state where knurling is performed by the roller having the protrusion of the integrated marking device of the present invention. It is explanatory drawing which shows.

  In the state of waiting for the roller having the protrusion, as shown in FIG. 8, the roller rotating gear 9 meshes with the roller rotating motor 8, and the roller 3 having the protrusion is rotated. The protrusion can be uniformly heated by the notched circular induction heating coil 6.

  On the other hand, as shown in FIG. 9, when knurling is performed, the roller 3 having the protrusions rotates as the sandwiched film or the like moves. The protrusion can be uniformly heated by the induction heating coil 6.

  FIG. 10 is a view showing a state in which the heat-resistant rubber roller of the marking device having an integral structure according to the present invention is adjusted. The heat-resistant rubber roll 4 can be moved by the adjusting mechanism 10, and the metal foil or the film 5 can be sandwiched by only one heat-resistant rubber roll and the roller 3 having a protrusion.

FIG. 11 shows a U-shaped induction heating coil of the present invention, and FIG. 12 shows a notch circular induction heating coil of the present invention.
The shape of the induction heating coil 6 that is U-shaped or notched is shown. Any other shape may be used as long as it can be used as an induction heating coil.

As an example, a case where the film 5 is sandwiched between two heat-resistant rubber rolls 4 and a roller 3 having protrusions as shown in FIG. 9 is shown. (W roll)
When the traveling speed (m / min) of the film 5 and the temperature (° C.) of the protrusion surface of the roller having protrusions were changed, the height (μm) of the concave and convex marks formed on the film 5 was measured.

  As another embodiment, as shown in FIG. 10, the adjustment mechanism 10 adjusts the position of the heat-resistant rubber roll 4 and the film 5 is sandwiched between one heat-resistant rubber roll and the roller 3 having a protrusion. (S roll)

  When the traveling speed (m / min) of the film 5 and the temperature (° C.) of the protrusion surface of the roller having protrusions were changed, the height (μm) of the concave and convex marks formed on the film 5 was measured.

Using a S (single) roll and a W (two) roll, the height of the concavo-convex mark was measured on a PET 100 μm film.
As test conditions, the surface temperature of the roller 3 having protrusions was changed to 135 ° C., 172 ° C., 191 ° C., 222 ° C., and 245 ° C., and the traveling speed of the film 5 was 10 m / min, 20 m / min, 50 m / min, It was changed to 80m / min and 100m / min.
The height of the concave and convex marks in each case was measured five times with a micrometer, and an average value was obtained.

The characteristics of the PET film are as follows.
・ Softening point: 180 ℃
・ Heat resistance: 210 ℃
Melting point: 258 ° C

The following analysis can be performed from the result.
・ Heat resistance temperature or less and 50m / min or less ・ ・ ・ ・ Uneven mark height S roll> W roll (Surface pressure on the blade surface is assumed to be S roll> W roll)
・ Heat resistance temperature or less and 50 m / min or more: Convex / concave mark height S roll <W roll ・ When the melting point temperature is close to 50 m / min or less, the W roll is nearly twice as high as the concave / convex mark height.
-Near the melting point temperature and at 50 m / min or more, the W roll is 1.2 to 1.5 times as high as the uneven mark height.

  From the above results, it can be judged that the W roll is very effective for a high melting point film and a high-speed production line.

    The present invention is an integrated marking device capable of marking or knurling a metal foil, a film or the like.

DESCRIPTION OF SYMBOLS 1 Base plate 2 Cylinder for roller raising / lowering 3 Roller with protrusion 4 Heat resistant rubber roll 5 Metal foil or film 6 U-shaped or notched circular induction heating coil 7 Radiation thermometer 8 Roller rotation motor 9 Roller rotation gear 10 Adjustment mechanism 11 Regulator 12 Concavity and convexity marks 13 Defects such as dirt or scratches 14 Slit cutter 15 Heat-resistant rubber roll holder

Claims (6)

  In a marking device comprising a base plate, a roller raising / lowering cylinder provided on the base plate, and a roller having a protrusion that can be raised and lowered by the roller raising / lowering cylinder, a U for heating the protrusion surface of the roller having the protrusion An integrated marking device characterized in that an induction heating coil having a letter shape or a cutout circular shape is provided, and a film is sandwiched between a roller having the protrusion and two heat-resistant rubber rolls to perform knurling. Marking device integrated structure according to claim 1, wherein the rollers having the projections were to be continuously or intermittently loading and unloading at the roller lifting cylinders. The integrated marking device according to claim 1 or 2, further comprising a radiation thermometer for measuring a surface temperature of a protrusion surface of the roller having the protrusion. In a state where the roller having the protrusion is raised by the roller raising / lowering cylinder, the roller having the protrusion is rotated by a rotating motor, and the protrusion surface of the roller having the protrusion is formed by the U-shaped or notched circular induction heating coil. 4. The integrated marking device according to any one of claims 1 to 3 , wherein the marking device can be heated uniformly. The monolithic structure according to any one of claims 1 to 4 , further comprising an adjustment mechanism that can adjust a surface contact pressure by the roller having the protrusion by moving the two heat-resistant rubber rolls. Marking device. Marking device integrated structure according to any one of claims 1 to 5, characterized in that to adjust the height of the knurling by the roller having the protrusions adjust the air pressure of the roller lifting cylinders by regulators.

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