JP2006255858A - Anvil roll mechanism, working device using it and usage of the device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce weight and cost by simplifying the structure. <P>SOLUTION: An anvil roll 3 is paired with a work roll 1 to thereby back up the work for the workpiece W by holding an intermittently fed sheet-like workpiece W between the anvil roll and the work roll 1 provided with a work means 2 fitted to the peripheral surface. The anvil roll 3 is provided to be driven in rotation both in the forward direction and in the revese direction independently of the work roll, and nip rolls 5, 6 on the supply side and the draw side of the anvil roll 3 fixed at predetermined positions at a space of the opposite part to the work roll 1 are supported by bearings to steadily press the workpiece W to the anvil roll 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  This invention allows paper, metal foil, composite paper and other sheet-like workpieces to be intermittently fed independently from other members, or supports the workpiece from the lower surface side and contributes to the burden of transfer tension. In a state where the workpieces are superimposed on each other, the sheet-like workpiece is intermittently fed together with the carrier sheet to be used for predetermined die cutting, cutting, half-cutting to the middle position of the thickness, etc., printing, etc. The present invention relates to an anvil roll mechanism suitable for use in a working apparatus, a working apparatus using the same, and a method of using the apparatus.

  For example, a composite paper consisting of a label paper that is printed with required characters, figures, symbols, etc. and has an adhesive layer on the back surface and a release paper that is attached in advance to the back surface of the label paper, has a long length. A sheet-like workpiece is used, and the label paper of the workpiece is punched out so that only the label portion having the required contour shape adheres to the release paper, and the blank portion of the label paper is separated and removed from the release paper. In this case, for example, a sheet-like workpiece is sandwiched between a work roll and an anvil roll which are mutually and continuously rotated in synchronism with each other, and are continuously passed through the work roll. For example, the cutting edge of the punching blade, which is formed on the upper part, for example, a flexible etching blade, a sculpture blade, an implanted blade, or the like, that defines the required contour shape, etc. Conventionally, the required label portion is punched out from the label paper by cutting it into the workpiece to the depth corresponding to the thickness of the label paper under the cleanup. The blank portion, that is, the unnecessary portion is separated from the release paper, and is wound and removed in a roll shape.

  However, since this conventional technique allows a workpiece to pass between a continuously rotating work roll and an anvil roll, it is possible to achieve a high work efficiency. For example, at least the circumferential length of the work roll, and hence the entire length of the punching blade disposed on the entire circumference of the work roll, should be a length corresponding to one or more pitches of the printed label portion. Therefore, for punching other types of label parts where the required label part pitch length, label part dimension in the length direction of the workpiece, etc. are different, use other types of label parts. It is necessary to prepare other work rolls having suitable perimeters, etc. Therefore, in order to punch many kinds of label parts with different pitch lengths, etc. Was number been forced to prepare work rolls of this, equipment cost, there is an inconvenience that would result in an increase or roll management costs.

  For this reason, it is inevitable that the work efficiency will be reduced, and in order to suppress the increase in equipment cost, roll management cost, etc., the sheet-like work will be in units of the required length according to the label part pitch length etc. For each intermittent transfer, the label portion is punched with a flexible etching blade having a required length shorter than the roll circumference, for example, attached to a work roll having a sufficiently long circumference by magnetic adsorption or the like. It has been proposed.

  According to this proposed technology, one work roll having a sufficiently long circumference can be magnetically attracted as required by various flexible etching blades prepared according to the type of the label portion, thereby providing one work roll. Since the work roll can be shared for punching many types of label parts, it is possible to realize downsizing of the equipment by punching with a pair of rotating rolls, as well as effectively increasing the equipment cost and roll management cost. In addition, mainly by replacing the flexible etching blade, it is possible to deal with the punching of various label parts, so that there is no need for large-scale setup changes. Therefore, not only can the low work efficiency resulting from the intermittent feeding of the workpiece be negligible, Sometimes it may enhance filtration work efficiency.

  By the way, when the label portion is punched according to the proposed technique, a flexible etching blade 101 having a required length is magnetically adsorbed on the peripheral surface as exemplified by a schematic side view in FIG. The work roll 102 and the anvil roll 103 paired with the roll 102 are continuously rotated, for example, in a state where the etching blade 101 arrives at a predetermined work position and the timing is adjusted. Based on the operation of the paired feed roll 104 and pulling roll 105, the work W is intermittently fed over a predetermined length between the work roll 102 and the anvil roll 103, whereby the work W is etched into the etching blade. When a punching process is performed for a distance corresponding to the circumferential length of 101, the amount of workpiece W that is fed once is When the length of the etching blade 101 is substantially equal to the circumferential length, the feeding starts when the front end 101a of the flexible etching blade 101 in the rotational direction is sufficiently close to the anvil roll 103, for example, as shown in FIG. On the other hand, as shown in FIG. 9, after the rear end 101b in the rotational direction of the flexible etching blade 101 is closest to the anvil roll 103 as shown in FIG. In addition, when it passes through the closest position, for example, almost when the blank portion existing between the required label portions passes through the radial linear position connecting the centers of the two rolls 102 and 103, it is stopped. Will be.

  However, under such a stop posture of the work W, the cutting edge of the rear end 101b of the etching blade 101 is still in the work W, so that the work roll 102 and the work roll 102 are kept stopped there. If the rotation of the pair of anvil rolls 103 is continued, the workpiece W is scratched or scraped by the cutting edge of the etching blade 101, and the workpiece W is damaged.

  Therefore, in order to perform intermittent feeding of the workpiece W based on the above-described proposed technique and sufficiently prevent the damage to the workpiece W, the etching blade 101 is moved to the position where the rear end 101b completely comes out of the workpiece W. Therefore, it is necessary to send the work W considerably excessively, and for this reason, in many cases, an extra length corresponding to almost half the circumference of the pair of rolls 102 and 103 is excessively fed.

  However, when the workpiece W is intermittently fed in this way, in order to properly start the next punching process for the workpiece W from a predetermined position, During machining, the workpiece roll 102 and the anvil roll 103 are continuously rotated by the reversing operation of the feed roll 104 and the pulling roll 105 so that the predetermined machining start start end coincides with the work start position of the front end 101a of the etching blade 101. It is necessary to retract and displace W to a predetermined position. The presence of this retracting displacement process complicates the mechanism and operation control of the feeding drive unit and the like, and the reciprocating displacement of the workpiece W causes the positioning of the workpiece W. However, there is a problem that it is difficult to ensure high machining accuracy due to a decrease in accuracy.

  On the other hand, when the workpiece W is pulled back and displaced by the reversing operation of the feed roll 104 and the pulling roll 105, the workpiece once wound on the winding shaft after finishing the predetermined processing, in other words, in addition to the product roll, After the processing of the above, since it is necessary to rewind and displace unnecessary portions wound on other winding shafts, especially when looking at the product roll wound on the winding shaft, Then, when the product roll is rotated in the winding direction along with the subsequent intermittent feed of the workpiece W, the inertial mass of the product roll is the tension of the workpiece W to be intermittently fed, There is a problem that speed fluctuation may be caused, and this fluctuation also causes a reduction in machining accuracy.

  Therefore, the applicant firstly reduced the size of the apparatus, prevented the increase in equipment costs and roll management costs, and suppressed the reduction in work efficiency as advantages brought about by the proposed technique, while maintaining the sheet-like work. A workpiece caused by the presence of a retraction displacement process of a sheet-like workpiece by absorbing the excessive feeding amount of the workpiece during intermittent feeding without the need for the above-described wide-range withdrawal displacement of the workpiece. The mechanism of the feeding and pulling drive unit and the complicated operation control, the difficulty of ensuring accuracy, etc. are sufficiently removed, and the unnecessary part of the take-up roll is sufficiently protected from unexpected breakage. An invention relating to a removed anvil roll mechanism, a working device using the mechanism, and a method of using the device is disclosed in JP-A-2005-110. It was proposed as an issue.

  The anvil roll mechanism of this application is paired with a work roll that is rotationally driven, and a sheet-like work that is intermittently fed is held between a work roll having work means attached to the peripheral surface, and the work An anvil roll that backs up the operation against the work roll is rotatably arranged, and the anvil roll is pressed against the anvil roll at each position separated from the work roll in the circumferential direction, and the supply side and Each nip roll on the drawer side is disposed at each end portion of the swing arm, for example, by bearing support, and the central portion in the length direction of the swing arm is swung around the central axis of the anvil roll. This anvil roll mechanism supports an annulus that is rotated at a peripheral speed equal to the work speed with respect to a sheet-like work that is intermittently fed. As a result of always performing the predetermined work reliably and properly without damaging the work over the entire circumference of the work means, the work feed amount has become excessive. In such a case, only the anvil roll is reversely displaced over a predetermined angular range, and along with the reverse displacement, the sheet-like workpiece is wound around the anvil roll and is also wound around the pair of nip rolls. Under the frictional engagement force with respect to each roll, a return force opposite to the feed direction is generated.

  In this case, the return force of the work causes an increase in tension of the work part wound around one of the pair of nip rolls interconnected by the swinging arm and a decrease in tension of the work part wrapped around the other. Both of these nip rolls are displaced together with the swinging arm in the reverse direction of the anvil roll to a position where the tensions of the two parts of the work are balanced. Return displacement will be performed.

  The return displacement of the workpiece at this time is all absorbed by only the displacement of each nip roll contacting the anvil roll via the workpiece, and is in the extension path of the workpiece. Thus, the influence of the return displacement of the workpiece on the rear side of the supply side nip roll and the front side of the drawing side nip roll is not affected. The feed roll 104 positioned on the rear side in the moving direction of the workpiece W and the pulling roll 105 positioned on the front side in the moving direction are reversed, and the workpiece W existing in the travel path is pulled back and displaced over almost the whole. The problem caused by the problem can be sufficiently removed, and the mechanism and operation control of the feed drive unit and the like are not complicated. It is possible to achieve a high working accuracy, addition, it is an can be removed even breaking other possibility of unnecessary parts or the like wound on a winding roll.

  Such an anvil roll mechanism according to the applicant's previous proposal is sufficient in terms of its functionality to satisfy the requirements of the user of the working device, but as the anvil roll mechanism is expected, In order to function reliably and appropriately, at least one of the nip rolls is composed of a central axis that is supported by a swing arm and a roll portion that is rotatably supported on the central axis, and on the central axis, A gear that meshes with a gear provided on the anvil roll side is attached via reverse restraint means such as a one-way bearing, a one-way clutch, etc., thereby making it impossible to rotate the center axis of the nip roll in the direction of retracting the sheet-like workpiece. Using almost all of the force that the nip roll receives from the anvil roll as the anvil roll reversely moves is used as the swinging force of the swinging arm. In both cases, the roll portion of the nip roll is rotatable about its central axis, and the workpiece that is pulled back based on the reverse displacement of the anvil roll is prevented from rubbing against the nip roll, etc. Alternatively, in addition, the central portion of the swing arm is supported on the central axis of the anvil roll via another reverse restraint means, and the swing arm is moved in the amount of reverse displacement of the anvil roll in accordance with the reverse displacement of the anvil roll. Spring means for quickly returning the swinging arm swung as described above to the initial position based on the reverse displacement of the anvil roll. In addition, a stopper for identifying the return position is required, and further, the sheet-like workpiece is pulled out to the front side of the work roll and the anvil roll. In addition, it is necessary to provide a reverse rotation restraining means for preventing the pull back displacement of the work caused by the reverse displacement of the anvil roll in the tension roll pair disposed on the front side of the anvil roll mechanism. Both will result in structural complexity, inevitable increase in weight and cost.

  On the other hand, depending on the type of the sheet-like workpiece, there are those that do not require high processing accuracy and the like so as to use the anvil roll mechanism as described above, and consideration for the inertial mass of the product roll once wound, Some unnecessary parts do not need to be wound around a winding roll.

  Therefore, the present invention aims to reduce the weight and cost under the simplification of the structure while following the basic structure of the anvil roll mechanism according to the prior application of the applicant. By positioning and fixing a pair of nip rolls that press the work in place, the sheet-like work after intermittent feeding has been finished is accurately pulled back over a predetermined amount under the reverse displacement of the anvil roll. An anvil roll mechanism that retracts and displaces the nip roll over a range exceeding both nip rolls, a working apparatus using the mechanism, and a method of using the apparatus.

  Therefore, according to the present invention, advantages such as downsizing of the apparatus, prevention of increase in equipment cost and roll management cost, suppression of reduction in work efficiency, and the like brought about by the previously proposed technique can be realized as they are.

  The anvil roll mechanism according to the present invention is a pair of work rolls that are rotated only in the forward rotation direction, for example, and intermittently feed a sheet-like work between a work roll having work means attached to the peripheral surface. An anvil roll that holds the workpiece and backs up the work on the workpiece is arranged so as to be able to rotate in both forward and reverse directions independently of the work roll, and the portion of the anvil roll facing the work roll is a circle of the anvil roll. Each of the nip rolls on the supply side and the withdrawal side, which are fixed at a predetermined fixed position in the circumferential direction and constantly press the work against the anvil roll, is supported by bearings in parallel with the anvil roll.

  Preferably, a gear that meshes with a gear provided on the anvil roll and rotates the nip roll at a peripheral speed equal to that of the anvil roll is integrally provided on each nip roll on the supply side and the withdrawal side.

  By the way, each nip roll can be provided to be supported on, for example, each end portion of a pair of brackets disposed so as to be rotatable around the central axis of the anvil roll as required.

  In this case, the bracket mounting structure can be simplified by pivotally supporting the central portion of each bracket with the central axis of the anvil roll.

Here, preferably, each nip roll is supported on the bracket in an eccentric posture with respect to the central axis of the working portion.
In this case, it is preferable that each nip roll is provided with a handle for rotating and displacing the nip roll around the spindle axis to the bracket. Preferably, the rotation of the shaft end of the nip roll is constrained to the bracket. Provide a set screw.

  Further, the working device using the anvil roll mechanism according to the present invention is provided with a work roll on which the working means is mounted on the peripheral surface, paired with any of the anvil roll mechanisms described above and the anvil roll, The center axis of each of the work roll and the anvil roll is connected to a rotational drive means that can be a pulse motor or the like, which are separate from each other, and the flange contacts the peripheral surface of the anvil roll on the center axis of the work roll The members are rotatably arranged.

  By the way, in such an apparatus, it is preferable to provide a reduction means for pressing the flange member against the peripheral surface of the anvil roll, and according to this, the distance between the peripheral surfaces of both rolls is always kept constant. And the working accuracy of the working means can be kept sufficiently high.

  The method of use according to the present invention using any of the above working devices is a sheet that is wound around an anvil roll and intermittently fed through a path from a supply side nip roll to a drawing side nip roll. The work on the work, which is attached to the work roll and rotated and displaced together with the arrival of the predetermined work position in time with the arrival of the predetermined work position, is carried out in cooperation with the anvil roll. In addition, the intermittent feeding of the sheet-like workpiece is stopped in a state where the rear end in the rotation direction of the working means is completely separated from the surface of the workpiece, and then the anvil roll is reversed over a predetermined angular range to The excess feed due to the intermittent feed of the nip roll is supplied from the front side of the nip roll on the drawing side with the reverse displacement of each nip roll. In is pulled back over a range of side nip roll on the rear side.

  As described above, the long sheet-like workpiece used in the anvil roll mechanism according to the present invention can be paper, metal foil, composite paper, or the like, and functions as a component on the anvil roll mechanism side. Contributes to supporting the transfer tension of the workpiece, and is superimposed on and supported by a carrier sheet that can be used repeatedly. For example, friction between the carrier sheet, electrostatic coupling to the carrier sheet, weak adhesion It is also possible to use a co-operating sheet that is displaced integrally with the co-operating sheet, for example. The product portion can be removed from the carrier sheet and the remainder can be transferred together with the carrier sheet.

  Here, the carrier sheet that is run endlessly or the accompanying sheet that is fed out from the winding roll and supported by the carrier sheet that is wound up in a roll after the work transfer operation is completed is used as the sheet-like work. In this case, the work means includes an anvil roll that is rotated at a peripheral speed equal to the work speed with respect to the work that is intermittently fed under the support of the transfer tension by the carrier sheet, and a work roll provided with the work means. An anvil roll under normal rotation or stop of the work roll when the work feed amount becomes excessive as a result of always performing the predetermined work reliably and properly over the entire circumference of the work roll. Only in a predetermined angular range, and with this reverse displacement, it is wound around the anvil roll. By generating a return force in the direction opposite to the feed direction on the sheet-like work wound around a pair of nip rolls under the frictional force against each roll, a simple reverse operation mechanism With the simple operation control below, it is possible to easily and quickly pull back the surplus feed amount of the work as expected.

  Based on the reverse displacement of the anvil roll, this retraction displacement of the sheet-like workpiece is smoothly and accurately performed over a predetermined amount under the reverse displacement of both nip rolls positioned and fixed at the required position. The workpiece is pulled back over a wide range from the front side of the nip roll on the drawing side to the rear side of the nip roll on the supply side, but if the required machining accuracy for the workpiece is not so high, However, the workpiece can be processed as expected.

  In addition, by using the accompanying sheet as a workpiece and passing it between the work roll and the anvil roll together with the carrier sheet, the carrier sheet is left as it is, and the workpiece is subjected to predetermined processing, for example, a product. If the part is removed from the carrier sheet and the remaining part is transported to the required discharge point with the carrier sheet, the product will not be wound into a roll, and unnecessary parts will be placed on the take-up roll. Since it is not wound, the influence of the product roll's inertial mass on the machining accuracy can be removed sufficiently, and there is also a risk that the work efficiency will be reduced due to breakage of unnecessary parts. Can be removed sufficiently.

  On the other hand, in relation to the type of work, the type of work, the product form, etc., the decrease in work accuracy due to the sheet-like work being displaced back over a long distance cannot be ignored for the required accuracy. When it becomes larger, adjacent to the side of each nip roll that is separated from the anvil roll, the sheet work is stored intentionally, and the tension of the work is controlled by preventing the occurrence of slack in the sheet work. By disposing each of the dancing rolls and causing the workpiece to be retracted only between the two dancing rolls, it is possible to advantageously eliminate the possibility of a reduction in work accuracy.

  Therefore, according to this anvil roll mechanism, various reverse restraint means, spring means, stoppers and the like are not required as compared with the anvil roll mechanism according to the applicant's prior application while sufficiently ensuring the required work accuracy. Thus, the structure of the mechanism can be simplified, and the weight and cost can be kept low.

  In such an anvil roll mechanism, when each nip roll is integrally provided with a gear meshing with a gear provided on the anvil roll, each of the pair of nip rolls is connected to the peripheral surface thereof and the anvil roll circumference. Compared to the case of rotating only by the frictional force with the surface, it can be driven at a peripheral speed closer to the anvil roll peripheral speed regardless of the rotation drive direction of the anvil roll. It is possible to effectively contribute to the accurate intermittent feed of the sheet-like workpiece over the expected distance, and when the anvil roll reverses, the excess work feed amount is used, for example, the start of the next work on the workpiece. The position can be pulled back more accurately to the required position.

  Also, here, when each nip roll is rotated around the center axis of the anvil roll as required and supported by a bracket that can be positioned and fixed, the pair of brackets are synchronized with each other. By rotating the nip roll over the angular range as required, the circumferential position of each nip roll relative to the anvil roll can be adjusted to the optimum position in relation to the type of workpiece, type of machining, removal position of the workpiece, etc. The unexpected displacement of the nip roll can be sufficiently restrained by fixing the bracket to a required position.

  In this case, when the central part of the bracket is pivotally supported by the central axis of the anvil roll, the bracket mounting structure that can be rotated is simplified and the required rotational displacement of the bracket is sufficiently smooth. It can be.

  By the way, when each nip roll is supported by the bracket in an eccentric posture with respect to the central axis of the working part, the peripheral surface of the nip roll is moved around the support axis by rotating the nip roll around the support axis. Since it can be moved toward and away from the surface as required, the work of winding the sheet-like work around each roll can be made easier. The anvil roll can be pressed with an optimum force according to the type and the like.

  In this case, it is possible to provide each nip roll with a handle for rotationally displacing them around the support axis to the bracket, so that the operation of changing the relative position of the peripheral surface of the nip roll with respect to the peripheral surface of the anvil roll is performed. Is preferable for simplifying the process.

  In addition, when the nip roll is supported by the bracket under the eccentricity, the bracket is restrained from rotating the shaft end of the nip roll in order to prevent the nip roll from rotating unexpectedly around the support axis. It is preferable to provide a push screw for screwing.

  In the working device according to the present invention using any of the anvil roll mechanisms as described above, for example, the work start start point of the work that is intermittently fed over a predetermined length together with the carrier sheet is the anvil. The front end of the working means on the work roll in the rotating state or the stopped state is also aligned with a predetermined position on the roll, for example, reaching the line segment connecting the centers of the anvil roll and the work roll. Also, by reaching the line segment, it is possible to properly start a predetermined work on the work, and subsequently, the work does not cause a slip between the work means and the work means, etc. By feeding at a high speed, a predetermined work can be performed on the work over a length corresponding to the circumference of the working means.

  As a result, the rear end of the working means, such as a punching blade, reaches the line segment, and a single work on the work is completely completed, but the speed subsequently generated between the working means and the work. When the difference may cause damage to the workpiece such as tearing, dirt, wrinkles, etc., the workpiece is excessively fed to the position where the working means on the work roll is completely separated from the surface of the workpiece. Preventing damage to the body.

  By the way, when such surplus feeding of the work is performed, in order to perform an accurate work from the next work start start position on the work by the next action of the work roll and eventually the work means, It is necessary to pull back the workpiece at least by a distance corresponding to its surplus feed length.

  Therefore, as described above, in this apparatus, only the anvil roll is rotated in the reverse direction over the angular range corresponding to the required pullback length of the work under the rotating or stopped state of the work roll. With the reverse rotation displacement of each nip roll causing, the workpiece is assuredly and accurately pulled back as expected.

  As described above, the pulling displacement of the sheet-like workpiece here is performed over a range that extends back and forth between the pair of nip rolls, but the type of workpiece, the type of machining, the manner of taking out the processed product, etc. Depending on this, the required machining accuracy can be sufficiently secured, and a high working efficiency can be sufficiently secured.

Therefore, with this device, it is possible to reliably perform the pull-back displacement of the workpiece as required by simple operation control of a simple operation mechanism for reversing the anvil roll, as expected. The problems of the prior art can be solved effectively.
Note that the next work can be started on the workpiece once pulled back in this way under the normal rotation displacement of the anvil roll in the same manner as described above.

  In addition, in this apparatus, the center axis of each of the work roll and the anvil roll is connected to a separate rotation driving means, and two flange members that are in contact with the peripheral surface of the anvil roll are rotatable on the center axis of the work roll. By disposing the flange members, the distance between the center axes of the work roll and the anvil roll can always be kept constant by the action of the flange members. By making it freely rotatable, both of these rolls can be rotated and stopped as required independently of each other.

  Further, according to the method of the present invention, the intermittent feeding of the workpiece based on the forward rotation displacement of the anvil roll and the pulling-back displacement of the workpiece based on the reverse rotation displacement thereof can be accurately performed under the action of the paired nip rolls. And it can be surely performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a schematic front view showing a working device using an anvil roll mechanism, and FIG. 2 is a partial cross-sectional side view taken along line II-II in FIG.

  Here, the anvil roll mechanism according to the present invention is provided with an anvil roll 3 that forms a pair with the work roll 1 and backs up the work by the working means 2 attached to the peripheral surface of the work roll 1. In the figure, a pair of brackets 4 having a substantially quadrilateral shape pivotally supported by the central axis of the anvil roll 3 and end portions of the brackets 4, The nip rolls 5 on the supply side and the withdrawal side, which are supported in parallel with the anvil roll 3 at the respective end portions facing the diameter direction of the anvil roll 3 and press the sheet-like workpiece W against the peripheral surface of the anvil roll 3. , 6.

  As shown in the figure, each of the nip rolls 5 and 6 is supported by a pair of pivotable brackets 4 connected to each other. However, the nip rolls 5 and 6 are independent of each other. For example, it is possible to support each bracket fixed in position.

Further, here, as shown in FIG. 2, each of the work roll 1 and the anvil roll 3 is supported by bearings in parallel with each other, and the central shafts 7 and 8 of both rolls 1 and 3 are rotationally driven. Means, for example a pulse motor, are preferably connected independently of each other.
Further, the main body drum portion 9 of the work roll 1 is made of, for example, a magnetized rigid material, and necessary work means 2, such as a flexible punching blade, a printing plate, etc. It is possible to achieve magnetic adsorption over the required circumferential length within the length range.
On the other hand, it is also possible to magnetize the punching blade or the like.

  The working means 2 attached to the main body trunk portion 9 in this way sandwiches a sheet-like workpiece W, which is intermittently fed over a predetermined length, between the anvil roll 3 and the workpiece W is predetermined. It works to do the work of.

  And preferably, on the central axis 7 of such a work roll 1, adjacent to each edge of the main body barrel 9, a diameter somewhat larger than the barrel 9, for example, the diameter of the barrel 9. On the other hand, the two flange members 10 having a diameter that is approximately twice as large as the sum of the thickness of the working means 2 and the thickness of the workpiece W, and when the carrier sheet is used, are included in a freely rotatable manner. In addition, the peripheral surface of the flange member 10 is brought into contact with the peripheral surface of the anvil roll 3, and the distance between the central axes of the rolls 1 and 3 is set to the rotational position of the work roll 1 to which the working means 2 is attached. Regardless of the situation, keep it constant.

  As shown in FIGS. 1 and 2, this means that the boss 11 fitted to the central shaft 7 of the work roll 1 is indirectly reduced with a screw member 12 via a reduction roller in the drawing, and the flange member 10. In the case where the degree of adhesion of the peripheral surface of the work roll 1 to the anvil roll 3 is increased and the work W is sandwiched between the work means 2 and the anvil roll 3, the separation of the work roll 1 from the anvil roll 3 is prevented. It is effective.

  By the way, in the illustrated anvil roll mechanism, the respective nip rolls 5 and 6 that are attached to the respective end portions of the bracket 4 preferably in a bearing support state as illustrated and extend parallel to the anvil roll 3 are connected to the central shaft 13, 14 and roll portions 15 and 16 that rotate integrally with the central axis thereof, and as is apparent from the example of one nip roll 6 in FIG. 2, the anvil roll 3 is arranged on the central axis 14. A gear 18 that meshes with a gear 17 provided on the central shaft 8 is preferably attached by fixing with a key.

  According to this, the roll portions 15, 16, and by extension, the respective nip rolls 5, 6, are constrained by the gear 18 by the gear 17 on the anvil roll side and in the opposite direction to the anvil roll 3, As a result, the intermittent displacement of the workpiece W and the return displacement are performed with sufficiently high positional accuracy. .

  In FIG. 2, although two pairs of gears 17 and 18 that mesh with each other are provided, it is possible to provide only one pair of them.

  Further, in the anvil roll mechanism shown here, the central portion of the bracket 4 in the longitudinal direction is swingable around the central axis of the anvil roll 3, for example, supported by the central axis 8 of the roll 3. In this case, a fixed rod 19 that can be a screw shaft or the like is connected to an appropriate portion of the bracket 4, and the relative protrusion length of the rod 19 with respect to, for example, the support frame is adjusted as necessary. As a result, the tilting posture of the bracket 4 can be appropriately selected as necessary, and can be positioned and fixed as expected.

  In addition to the anvil roll mechanism, the working device using the anvil roll mechanism as described above is paired with the anvil roll 3 and the working means 2 is mounted on the peripheral surface as described above. When the work roll 1 is provided, the central shafts 7 and 8 of the work roll 1 and the anvil roll 3 are connected to mutually separate rotational drive means, for example, pulse motors. As described above, the flange member 10 having a diameter larger than that of the body portion 9 and being in contact with the peripheral surface of the anvil roll 3 is rotatably disposed on the body body 9. It is made up.

  In the working apparatus configured as described above, the working means 2 attached to the circumferential surface of the body portion of the work roll 1 is, for example, a flexible punching blade that is magnetically attracted thereto, and this punching blade allows the supply side to be A carrier sheet which is intermittently fed at a constant speed into the anvil roll mechanism through the nip roll 5 and can be formed of, for example, polyethylene, polypropylene, polyethylene terephthalate or other plastic sheet, rubber sheet, elastomer sheet, etc. When the workpiece W supported on the workpiece 20 is punched into a desired contour shape, the carrier sheet 20 and the workpiece W are wound under the winding state as shown in FIG. For example, by controlling the rotational speed of the work roll 1, The work start start of the hook W reaches a predetermined work position, for example, a position slightly ahead of the line connecting the central axes of the rolls 1 and 3, and the front end of the working means 2 in the rotational direction A predetermined punching process for the workpiece W is started with high accuracy by matching the timing of arrival at the work position and sandwiching the workpiece W between the work means 2 and the anvil roll 3 that move at the same speed as the workpiece W. By continuing this over the entire circumferential length of the working means 2, one work on the workpiece W by the working means 2 is completed.

  By the way, after completing one operation for the work W by the whole of the working means 2 from the front end to the rear end in the rotation direction, the work means 2 is positioned at the rear end of the work means 2. In order for the extracted blade portion that has digged into W to come out smoothly without damaging the workpiece W, as described above in connection with the location shown in FIG. Almost the entire blank portion between the processed parts passes through the position of the segment connecting the central axes of the work roll 1 and the anvil roll 3, and it is necessary to feed a considerable amount of the workpiece W.

  Accordingly, here, the feed amount of the work W at one time is set to an amount sufficient for the extraction blade portion at the rear end of the working means 2 to smoothly come out of the work W, while the predetermined position of the next work on the work W is set. In order to guarantee a certain start from the above, at least the surplus feed portion of the workpiece W is pulled back with the reverse displacement over the angle range corresponding to the surplus feed portion of the anvil roll 3 around which the workpiece W is wound. On the basis of this reverse displacement, the nipple rolls 5 and 6 meshing with the anvil roll 3 are rotationally displaced in a direction opposite to the rotation direction of the anvil roll 3 at a fixed position that is positioned and fixed in advance. .

  As a result, as shown in FIG. 1, the nip rolls 5 and 6 are both rotationally displaced clockwise in synchronism with each other, and the required amount of the workpiece W is pulled back. Between the front side portion and the rear side portion of the nip roll 5 on the supply side.

  The next work on the workpiece W that has been displaced back as described above is performed by feeding the surplus retracted portion of the workpiece W forward while the forward rotation of the anvil roll 3 is performed again. By causing W to advance and displace the next work start start point to a predetermined position, and then restart the intermittent feed of the work W by a predetermined length to cause the work roll 1 and the work means 2 to function in the same manner as described above. The work W can be performed properly and accurately from the start of work.

  By the way, when each of the pair of nip rolls is supported by a bracket 4 that is rotatable around the central axis of the anvil roll 3 as shown in the drawing, for example, by punching with a punching blade as a working means. As illustrated in FIG. 3A, the product portion 21 of the workpiece W punched on the carrier sheet 20 is placed and left on the carrier sheet 20 as it is, and is passed through the nip roll 6 on the drawing side. Then, in relation to the bending stiffness of the product portion 21, the bending radius of the carrier sheet 20 wound around the anvil roll 3, and the like, immediately after the punching by the working means 2, the product portion 21 is shown in FIG. As illustrated in b), the bracket 4 is shown in FIG. 4 as an example when the carrier sheet 20 may be peeled off and fall off from the carrier sheet 20. In such a turning posture, the product part 21 is restrained from being peeled off from the carrier sheet 20 at an early stage by the nip roll 6 on the drawing side displaced in the direction approaching the work roll 1. The product portion 21 can be reliably conveyed to the expected position with the carrier sheet 20.

  On the other hand, under the requirement to remove the product portion 21 processed on the carrier sheet 20 from the carrier sheet 20 at an earlier stage and collect it, the drawer side nip roll 6 is attached to the bracket 4. As shown in FIG. 3 (b), the product portion 21 has a center axis line positioned in a horizontal plane including the center axis line of the anvil roll 3 or a position displaced slightly upward from the position by the rotation. The natural peeling as shown in FIG. 3B can be facilitated, or the product portion 21 can be actively peeled from the carrier sheet 20 by the peripheral surface of the nip roll 6. .

  By the way, when the work portion that is excessively fed by the intermittent feed of the work W is pulled back and displaced based on the reverse displacement of the anvil roll 3, it is necessary to narrow the pull back displacement area of the work W as much as possible. For example, as shown in phantom lines in FIG. 1, a dancing roll 22 that artificially creates a work W or a reservoir of the work W and the carrier sheet 20 at a position adjacent to the front side of the nip roll 6 on the drawing side, and It is preferable to dispose other dancing rolls 23 that absorb slack of the workpiece W or the like and control the tension thereof at a position adjacent to the rear side of the nip roll on the supply side. The workpiece is displaced only between the dancing rolls 22 and 23 in the pulling back displacement of W. Can, the work portion extending outwardly of their dancing roll 22 and 23, that the affect of the retraction displacement can be sufficiently prevented.

  5 and 6 are a front view and a side view, respectively, showing another embodiment of the anvil roll mechanism together with the work roll, which are the central axes y of the roll portions 15 and 16 that are the working portions of the nip rolls 5 and 6. On the other hand, the center axis z of each support shaft 42 that controls the support of the nip rolls 5 and 6 to the bracket 4 is provided eccentrically, and the gears 17 and 18 of the previous embodiment are omitted. .

In the figure, reference numeral 43 denotes a handle provided at the shaft end portion of the nip rolls 5 and 6 so as to cause the rotational displacement of the nip rolls 5 and 6 about the support shaft center axis z, and reference numeral 44 denotes the nip rolls 5 and 6. In order to specify the relative posture with respect to the anvil roll 3, a set screw for restraining the rotation of the support shaft 42 relative to the bracket 4 is shown.
In this case, in order to ensure free rotation of the roll portions 15 and 16 independent of the support shaft 42, it is preferable to support the roll portions on the central axis. , 16 can be rotated at a peripheral speed equal to that of the anvil roll 3 under the pressure of the peripheral surface of the anvil roll.

  According to the eccentric structure as described above, the peripheral surfaces of the roll portions 15 and 16 are displaced by rotating the center axis of the nip rolls 5 and 6 around the center axis of the eccentric support shaft 42 via the handle 43. Since the peripheral surface of the anvil roll 3 can be approached and separated very easily, the workpiece W is wound around each of the rolls 3, 5, 6 under the separation of the nip rolls 5, 6. As a result, it is possible to easily and quickly prepare for the start of work by the required work means.

  After completing such preparation, the push screw 44 is tightened in a state where the peripheral surfaces of the roll portions 15 and 16 are pressed against the anvil roll 3 with a required force by the operation of the handle 43 again. Therefore, the required pressing force can be continuously ensured.

5 and 6, a screw that presses down the boss 11 of the work roll 1 via a bearing 45 in order to press the flange member 10 provided on the work roll 1 against the peripheral surface of the anvil roll 3. Since the lock knob 46 is screwed to 12, the unintentional reduction of the rolling force on the boss 11 can be effectively prevented by sufficiently tightening the lock knob 46.
Note that portions other than those described above with reference to FIGS. 5 and 6 can be configured in the same manner as in the previous case.

The case where the punching blade as the working means is attached to the work roll has been described above. However, the working means may be a cutting blade, a printing plate, or the like.
In addition, the sheet-like workpiece can be wound directly on various rolls, and can be intermittently fed by itself alone, withdrawing displacement, etc. When it is necessary to superimpose on a carrier sheet and transfer it, a plastic carrier sheet that is used repeatedly as a member on the anvil roll mechanism side is endless like a conveyor belt. In addition, it can also be taken out from a winding roll and wound up on a winding roll.
The timing of the sheet-like workpiece overlapping on the carrier sheet is such that each of the carrier sheet and the workpiece is wound around each of the nip roll and the anvil roll in a mutually overlapping posture. As conditions, it can select suitably as needed.

It is a basic diagram front view which shows the working apparatus using an anvil roll mechanism. It is a side view which follows the II-II line | wire of FIG. It is a basic diagram which illustrates the peeling aspect of a product part. It is a basic diagram which shows the example of an effect | action of a bracket. It is a front view which shows other embodiment of the anvil roll mechanism. FIG. 6 is a side view of FIG. 5. It is a front view which shows the principal part of a proposal technique. It is an expanded sectional view which shows the completion | finish time of the work by a working means. It is an expanded sectional view which shows the interference aspect to the workpiece | work of the working means at the time of the stop of the intermittent feeding of a workpiece | work.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work roll 2 Working means 3 Anvil roll 4 Bracket 5, 6 Nipple roll 7, 8, 13, 14 Center axis 9 Main body trunk | drum 10 Flange member 11 Boss 12 Screw 15, 16 Roll part 17, 18 Gear 19 Fixed rod 20 Carrier Seat 21 Product part 22, 23 Dancing roll 42 Support shaft 43 Handle 44 Push screw 45 Bearing 46 Lock knob W Work y, z Center axis

Claims (10)

  A pair of work rolls, which are intermittently fed, are held between work rolls with work means attached to the peripheral surface, and an anvil roll that backs up work on the work is rotated in both forward and reverse directions. Each of the nip rolls on the supply side and the withdrawal side is provided so that it can be driven, and is fixed at a predetermined fixed position with the anvil roll facing the work roll. Anvil roll mechanism with bearing support.   The anvil roll mechanism according to claim 1, wherein each nip roll is integrally provided with a gear that meshes with a gear provided on the anvil roll.   The anvil roll mechanism according to claim 1 or 2, wherein each nip roll is supported by each of a pair of brackets provided so as to be rotatable around a central axis of the anvil roll.   The anvil roll mechanism according to claim 3, wherein a central portion of each bracket is pivotally supported by a central axis of the anvil roll.   The anvil roll mechanism according to any one of claims 1, 3 and 4, wherein each nip roll is supported by a bracket in an eccentric posture with respect to a center axis thereof.   6. An anvil roll mechanism according to claim 5, wherein each nip roll is provided with a handle for rotating the nip roll around a support axis to the bracket.   The anvil roll mechanism according to claim 5 or 6, wherein the bracket is provided with a push screw that restrains rotation of the shaft end of the nip roll.   An anvil roll mechanism according to any one of claims 1 to 7 and an anvil roll paired with a work roll on which a work means is mounted on a peripheral surface, and the respective center axes of the work roll and the anvil roll are mutually connected. And a rotation device that is connected to a separate rotation driving means and that rotatably arranges a flange member that contacts the peripheral surface of the anvil roll on the central axis of the work roll.   The working device according to claim 8, further comprising a pressing unit that presses the flange member against the peripheral surface of the anvil roll. In using the working device according to claim 8 or 9,
The sheet-like workpiece that is wound around the anvil roll and intermittently fed through the path from the supply-side nip roll to the withdrawal-side nip roll is attached to the work roll in accordance with the arrival and timing of the specified work position. Work on the workpiece by the working means that is rotated and displaced integrally with it is started in cooperation with the anvil roll, and the rear end in the turning direction of the working means is completely separated from the surface of the work. In the state, the intermittent feeding of the sheet-like workpiece is stopped, and then the anvil roll is reversed over a predetermined angle range, and the excess feeding portion due to the intermittent feeding of the workpiece is accompanied by the reverse displacement of each nip roll, Anvil roll mechanism that pulls back and displaces from the front side of the nip roll on the drawing side to the rear side of the nip roll on the supply side How to use the work device using.

Images