JP3955577B2 - Working device with a common support roll - Google Patents

Description

  This invention is a sheet-like member or film-like member such as plastic, paper, metal foil, composite paper, etc., which is continuously or intermittently displaced, and is subjected to die cutting, cutting, half-cutting to an intermediate position of thickness, etc. It is related with the working device which provides a common support roll for performing.

  For example, as a conventional device for performing the same type or a plurality of types of processing such as die cutting on a sheet-like member, a plurality of pairs of support rolls and work rolls that are paired with each other are arranged in parallel in a plurality of stages. There is a so-called tandem type working device.

  An object of the present invention is to provide a working device having a common support roll which can be made to cooperate with each of a plurality of work rolls with a single common support roll.

A working device having a common support roll according to the present invention includes a nip roll that presses a sheet-like member or a film-like member supported at both ends and continuously displaced intermittently against the support roll under rotation. Comprising a common support roll, which is rotationally driven, spaced circumferentially around it and cooperating with the support roll and pressed against it , to work with respect to the sheet-like member or film member, provided with a plurality of work rolls comprising a cutting die, with respect to the rotation direction of the support rolls, each of the front and rear side of each work roll, sheet A total of four or more nip rolls that run the member or the film-like member at a constant speed while being pressed against the support roll are provided, and the nip roll axis is substantially parallel to the support roll axis.

  Here, preferably, with respect to the rotation direction of the support roll, a feeding shaft and a winding shaft are arranged on the rear side and the front side of each work roll, respectively, and preferably, any of the rotation directions of the support roll is A common winding shaft of the product after the required processing is performed on the sheet-like member or the film-like member is disposed on the front side of the work roll.

According to the apparatus according to the present invention, a single common support roll can be caused to cooperate with a plurality of work rolls having a punching die, and therefore, the size and cost of the punching apparatus can be reduced.

  In addition, according to this apparatus, the same type or a plurality of types of processing can be performed simultaneously or sequentially with high accuracy on one or a plurality of sheet-like members at a plurality of locations around one support roll. Can do.

Embodiments of the present invention will be described below based on the drawings.
FIG. 1 is a front view showing a working apparatus having a plurality of nip rolls according to the present invention, with a support frame on the near side removed, and FIG. 2 is an enlarged perspective view of the main part of the working apparatus. It is.

  In FIG. 1, reference numeral 1 denotes a housing that houses a drive system of a working device, and reference numeral 2 denotes a housing 1 that protrudes from the winding roll of a sheet-like member that forms a tape shape, for example. The sheet-like member feeding shaft 3 is also provided on the housing, and shows, for example, a winding shaft for winding up unnecessary portions of the die-cut composite paper, and 4 is a sheet member. The product take-up shaft after the required processing is shown.

Here, the central portion of the housing 1, while projecting the supporting roll 5 of a single shared, around the support roll 5, a plurality, in the drawing at intervals of six units of the nip 6 in the circumferential direction In the figure, three work rolls 7 are provided so as to protrude from the housing 1 between these nip devices.

  Here, the nip device 6 includes a nip roll 8 that presses a sheet-like member fed continuously or intermittently from a winding roll against the support roll 5, and the work roll 7 is, for example, a magnet roll. The die 9 as an example of the means is magnetically attracted.

  Each of the nip devices 6 that can be arranged in this way is, as illustrated by a partial cross-sectional front view in FIG. 3, in many cases, both ends of the nip roll 8 whose surface layer is made of rubber or other elastic material layer, The blocks 10 are rotatably supported via bearings 11, and the end shafts 10 are fixed by penetrating an eccentric shaft 12 that is eccentric from the rotation center CR of the nip roll 8. The respective end portions are rotatably supported by the respective support frames 13, that is, the front and rear support frames 13 shown in FIG.

  In such a nip device 6, the rotational axis CR of the nip roll 8, and thus the nip roll itself, is preferably rotated by rotating the eccentric shaft 12 via a grip 14 fixed to at least one end of the eccentric shaft 12. It can be displaced over a position approaching the surface of the support roll 5 and a position moving away.

  Incidentally, the support of the eccentric shaft 12 by the respective support frames 13 can of course be performed at both ends of the shaft 12 via bearing bosses. However, in the drawing, the support frame 13 on the rear side is shown. In contrast, while the eccentric shaft 12 is directly inserted into the bearing metal 15 attached thereto, the boss having the bearing metal 16 attached to the support frame 13 is attached to the front support frame 13. The eccentric shaft 12 is inserted into the shaft 17 to support it.

  In this case, the boss 17 is attached to the support frame 13 by, for example, tightening and fixing the boss 17 fitted into the through hole of the support frame 13 with a screw 18 screwed into the support frame 13. Further, the eccentric shaft 12 can be prevented from coming out of the boss 17 by, for example, bringing the collar 19 fixed on the eccentric shaft into contact with the boss 17.

  On the other hand, the relative displacement of the eccentric shaft 12 and by extension, the nip roll 8 in the direction of the rear support frame 13 causes the cam member to contact the boss on the eccentric shaft on the side opposite to the collar. It can be blocked by fixing 20.

  Here, the cam member 20 can have, for example, a circumferential cam formed by providing a substantially flat cutout surface 22 at one location in the circumferential direction of a columnar member 21 having a cylindrical shape. The cam member 20 is attached to the eccentric shaft 12 in such a posture that the substantially flat notch surface 22 is positioned on the opposite side of the rotation center CR of the nip roll 8 with respect to the eccentric shaft axis.

  In addition, it is not essential that the notch surface 22 of such a cam member 20 is a flat surface shape, as long as the engagement position of the pressurizing piece to be described later to the notch surface 22 can be sufficiently stable. A convex curved surface, a concave curved surface, and other shapes can be appropriately selected as required under the relative relationship between the engaging surfaces of the two.

  Further, here, the notch surface 22 of the cam member 20 is arranged on the lower side of the figure in order to enable the support roll 5 to be pressed on at least one end side of the nip roll 8 and on the side where the boss 17 is disposed as shown in the drawing. Spring means 23 is provided for pressing the spring. The spring means 23 shown in FIG. 4 is projected from the boss 17 toward the shaft end side of the eccentric shaft 12 as shown in the left side view of FIG. A pair of guide members 24 that guide the rotational displacement of the cam member 20 are provided with respective holes penetrating in the vertical direction in the figure, and plate-shaped pressurizing that contacts the notch surface 22 of the cam member 20. Two guide rods 26 planted in the piece 25 are inserted through the through holes, and further, compression springs 27 are interposed between the lower ends of the guide rods 26 and the guide members 24. can do.

  According to such a spring means 23, the notch surface 22 of the cam member 20 is pressed down by the pressing piece 25 on the basis of the spring force of the compression spring 27, so that the nip roll 8 is eccentric with the rotation center CR thereof. The surface of the support roll is pressed according to the amount of eccentricity with respect to the axis, and in this pressed state, the engagement posture of the pressure piece 25 to the notch surface 22 is maintained under the action of the compression spring 27. Will continue for as long as possible.

On the other hand, the pressurizing piece 25 rotates the cam member 20 together with the eccentric shaft 12 so that the compression spring 27 is operated under the action of the cam surface of the cam member 20 as shown in FIG. The eccentric shaft 12 is displaced in parallel to the radial direction against the spring force, and this rotational displacement of the eccentric shaft 12 is caused by the rotation center CR of the nip roll 8 from the support roll 5. Since the separation displacement is caused, the nip roll 8 is lifted from the surface of the support roll 5 as shown in FIG. 5 (b). Therefore, it is maintained by restraining it outward in the radial direction from the engaging position with the notch surface 22.
Therefore, the spring means 23 does not perform its original function under such a lifting posture of the support roll 5.

By the way, in such a nip device, more preferably, as shown in FIG. 5A, the outer diameter D of the boss 17 through the support frame 13 is shown in the drawing with the axis of the eccentric shaft 12 as the center. It is a dimension that includes the outer contour line of the nip roll 8 indicated by a broken line.
According to this, as described above, the attachment / detachment of the nip roll 8 to / from the respective support frames 13 can be performed smoothly and easily together with the extraction and insertion of the bosses 17 with respect to the support frame 13 on the near side, This can be performed without the possibility of interference between the nip roll 8 and the support frame 13 or the like.

  When each nip device 6 shown in FIGS. 1 and 2 is configured in this manner, for example, a label printing is performed in advance using one feeding shaft 2 and winding shaft 3 and a product winding shaft 4 shown in FIG. In performing the punching process on the winding roll 31 of the tape-shaped composite paper to which the cutting die 9 is attached, the leading end of the sheet-like member 32 pulled out from the winding roll 31 is first introduced. The part is passed from the support roll 5 between the nip roll 8 and the support roll 5 separated as shown in FIG. The paper tube on the shaft 4 is led to and fixed to the peripheral surface thereof with, for example, an adhesive tape.

  Next, the work roll 7 is advanced and displaced to its working position, the die 9 is brought into contact with the support roll 5 via the sheet-like member 32, and the nip roll 8 is supported under the intervention of the sheet-like member 32. As shown in FIG. 3, the sheet-like member fed from the winding roll 31 is brought into close contact with the roll 5 and then the support roll 5, the work roll 7 and the product winding shaft 4 are operated at a constant speed. 32 is continuously run at a constant speed while being pressed against the support roll 5 by the nip roll 8, and the sheet-like member 32 is processed by the work roll 7, and the finished product is transferred to the product winding shaft. On the other hand, a so-called scum generated by the action of the punching die 9 is wound on the winding shaft 3.

Accordingly, when starting such work, in particular, the work of passing the leading end portion of the sheet-like member 32 through the predetermined path by the displacement of the nip roll 8 from the support roll 5 is easily and quickly performed. In addition, the sheet-like member 32 can be accurately passed to a desired position without causing wrinkles or the like.
The same applies to the case where one or more required operations are performed using the other feeding shaft 2, the other winding shaft 3, and the other work roll 7 shown in FIG.

  By the way, under the action of one or more work rolls 7, the sheet-like member fed out from the winding roll is in the middle of being subjected to predetermined processing, and the sheet-like member is entangled with the roll member or the like. In the case where wrapping or the like occurs, all the nip rolls 8 existing in the passage path of the sheet-like member are separated from the support roll 5 with all the drive rolls stopped, and more preferably in combination therewith. By retracting the work roll 7 as well, the entangled portion and the like can be removed easily, quickly, and safely and reliably, without the drive unit moving.

It is a front view showing an embodiment of a working device concerning this invention. It is a principal part expansion perspective view of FIG. It is a partial section front view showing an embodiment of a nip device. 6 is a left side view illustrating spring means. It is a figure which shows the rotation state of a cam member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Feeding shaft 3 Winding shaft 4 Product winding shaft 5 Support roll 6 Nip device 7 Work roll 8 Nip roll 9 Draw die 10 End block 11 Bearing 12 Eccentric shaft 13 Support frame 14 Grip 15, 16 Bearing metal 17 Boss 18 Screw 19 Collar 20 Cam member 21 Columnar member 22 Notch surface 23 Spring means 24 Guide member 25 Pressure piece 26 Guide rod 27 Compression spring 31 Winding roll 32 Sheet-like member CR Center of rotation

Claims (3)

An apparatus comprising a nip roll that presses a sheet-like member or a film-like member supported at both ends and continuously or intermittently displaced against a support roll under rotation,
A sheet-like member or a film-like member which is arranged around a common support roll to be rotated and spaced in the circumferential direction thereof and which is pressed against the support roll in cooperation with the support roll performing work on, provided with a plurality of work rolls comprising a cutting die, with respect to the rotation direction of the support rolls, each of the front and rear side of each of the work rolls, supporting a sheet-like member or film member A working device provided with a common support roll, which is provided with a total of four or more nip rolls that run at a constant speed under pressure on the roll .   The working device comprising the common support roll according to claim 1, wherein a feeding shaft and a take-up shaft are arranged on the rear side and the front side of each work roll with respect to the rotation direction of the support roll.   A common winding shaft of the product after the required processing is performed on the sheet-like member or the film-like member is arranged on the front side of any work roll with respect to the rotation direction of the support roll. A working device comprising the common support roll according to claim 1.

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