JP6130258B2 - Sheet cutting device - Google Patents

Description

  The present invention relates to a sheet cutting apparatus for cutting a strip-like sheet having a predetermined length along an adhesive layer formed along one side edge of one side and having a release paper attached to the adhesive layer.

  FIG. 17 shows a seat 110 used for binding wire harnesses mounted on a vehicle. The sheet 110 includes a sheet main body 111 formed in a long shape having a predetermined width W, an adhesive layer 112 formed in a belt shape having a predetermined width along one side edge of one side of the sheet main body 111, and an adhesive layer And release paper 113 affixed on 112. For the sheet body 111, for example, a vinyl sheet is used.

  FIG. 18 shows a state in which the wire harness 120 is bound by the sheet 110 shown in FIG. The sheet 110 is formed into a cylindrical structure that accommodates and holds the wire harness 120 by adhering both side edges of the sheet 110 with the adhesive layer 112 exposed by peeling the release paper 113.

FIG. 19 shows a sheet cutting apparatus 200 that is used in such an application that the sheet 110 shown in FIG. 17 is cut at a predetermined length.
The sheet cutting apparatus 200 is an apparatus disclosed in the following Patent Document 1, and includes a sheet reel 210, a release paper reel 220, a reel stand 230, a sheet feeding mechanism 240, and a sheet cutting mechanism 250. .

  The sheet reel 210 is a reel around which a belt-like sheet 260 having a release paper attached on one side is wound. The sheet 260 may have the same structure as the sheet 110 shown in FIG.

  The release paper reel 220 is a reel that winds the release paper peeled off from the sheet 260.

  The reel stand 230 includes a first reel support portion 231 that rotatably supports the sheet reel 210 and a second reel support portion 232 that rotatably supports the release paper reel 220.

  The sheet feeding mechanism 240 feeds the sheet 260 at a constant speed by rollers 241 and 242 arranged facing the sheet traveling path from the sheet reel 210 to the sheet feeding port 270.

  The sheet cutting mechanism 250 cuts the sheet 260 fed out by the sheet feeding mechanism 240 by a predetermined length.

JP 2010-013216 A

  By the way, in the case of the sheet cutting apparatus 200 of Patent Document 1, when the sheet 260 on the reel stand 230 is used up, the operation of the sheet cutting apparatus 200 is stopped and the empty sheet reel 210 is replaced with the reel stand 230. Then, the sheet reel 210 loaded with the sheet 260 is remounted on the sheet reel 210.

  Further, when the sheet reel 210 is replaced, the release paper is peeled off from the leading end portion of the sheet 260 drawn out from the sheet reel 210 newly attached to the first reel support portion 231, and the peeled release paper is removed from the release paper reel 220. It is also necessary to guide the release paper to guide it to the release paper reel 220 and fix it.

  However, the release paper guiding operation is a time-consuming operation. If the release paper guiding operation is performed following the replacement of the sheet reel 210, the operation time is prolonged, and the operation of the sheet cutting apparatus 200 is stopped during that time. As a result, there has been a problem that the operating rate of the apparatus is reduced.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, use up the sheet on the reel stand assembled to the apparatus main body, shorten the work time when replenishing the sheet, and improve the operation rate of the apparatus. An object of the present invention is to provide a sheet cutting apparatus capable of increasing the height.

The above-described object of the present invention is achieved by the following configuration.
(1) A sheet reel in which a pressure-sensitive adhesive layer is formed along one side edge of one surface and a belt-like sheet having a release paper attached to the pressure-sensitive adhesive layer is wound thereon,
A release paper reel for winding up the release paper released from the sheet;
A reel stand comprising: a first reel support portion that rotatably supports the sheet reel; and a second reel support portion that rotatably supports the release paper reel;
A stand mounting portion to which the reel stand can be attached and detached, a sheet feeding mechanism for feeding the sheet from the reel for sheet on the reel stand attached to the stand mounting portion, and the sheet fed by the sheet feeding mechanism A sheet cutting mechanism that cuts the length of the sheet, and the reel stand in conjunction with the sheet feeding mechanism so that the release paper on the sheet fed by the sheet feeding mechanism is sequentially wound on the release paper reel. A release paper reel drive shaft that rotationally drives the release paper reel above, an apparatus main body,
A sheet cutting device comprising:
The reel stand supports a front end of the sheet wound around the reel for the sheet attached to the first reel support portion and supports the reel stand when the reel stand is attached to the stand attachment portion. A sheet leading end support member for passing the leading end of the sheet to the sheet feeding mechanism;
When the reel stand is attached to the stand attachment portion, the reel stand can be easily and accurately positioned between the stand attachment portion and the reel stand, and the reel stand can be easily replaced. A sheet cutting device comprising a stand positioning mechanism.

(2) The stand positioning mechanism includes two positioning rods erected on the bottom of the reel stand, and the 2 when the reel stand is placed on the stand attaching portion so as to protrude from the stand attaching portion. A substantially rectangular parallelepiped positioning block that fits on one side of the gap formed by the positioning rods;
A positioning pin provided in the sheet feeding mechanism, a positioning hole provided in the sheet leading end support member,
The reel stand is positioned by fitting the positioning block between the two positioning rods and fitting the positioning pin and the positioning hole. Sheet cutting device.

(3) The sheet feeding mechanism is rotated while being in contact with one side of the sheet, and is rotated to follow the running of the sheet by contacting the one side of the sheet with a feeding roller that feeds the sheet. A measuring roller for measuring,
The sheet cutting device according to (1) or (2), wherein a feeding length of the sheet is detected from a rotation amount of the length measuring roller.

(4) The second reel support portion includes a second reel support shaft that is inserted through the center of the release paper reel and rotates integrally with the release paper reel, and one end of the second reel support shaft is rotatable. And a shaft movement enabling the position of the free end of the second reel support shaft supported by the bearing portion to be switched between a standby position and a coupling position spaced apart from the standby position by a specified length in the axial direction. A mechanism,
The stand attachment portion of the apparatus main body is coupled to the free end of the second reel support shaft when the second reel support shaft on the reel stand attached to the stand attachment portion moves to the coupling position. A release paper reel drive shaft capable of rotating and driving the second reel support shaft,
The release paper reel drive shaft is driven in conjunction with the feed roller;
The sheet cutting device according to (3) above, wherein

  (5) The mechanism for driving the release paper reel drive shaft is provided with a torque limiter for limiting the drive torque of the release paper reel drive shaft to within a specified value so that the drive torque does not exceed a predetermined value. The sheet cutting device according to (4), wherein the rotational speed of the release paper reel drive shaft is controlled.

  (6) The sheet cutting mechanism includes a cutter blade disposed on the downstream side of the sheet feeding mechanism so as to advance and retreat in a direction perpendicular to the surface of the sheet fed from the sheet feeding mechanism, and rotation of the length measuring roller. The sheet cutting apparatus according to any one of (3) to (5), further comprising: a crank mechanism that moves the cutter blade back and forth to a traveling position of the sheet based on a quantity.

(7) The reel stand regulates a path of the release paper that is peeled off from the front end of the sheet supported by the sheet front end support member and fixed to the release paper reel to the release paper reel. A pattern routing member,
The stand mounting portion of the apparatus main body irradiates light onto the path of the release paper wound around the release paper reel on the reel stand attached to the stand mounting portion, and reflects the irradiated light The sheet cutting device according to any one of (1) to (6) above, further comprising a release paper piece detection confirmation sensor that detects the release paper piece depending on the presence or absence of the release paper.

  According to the configuration of (1) above, when the reel stand is attached to the stand mounting portion of the apparatus main body, the leading end of the sheet pulled out from the sheet reel set on the reel stand is supported by the leading end of the sheet. The member passes the sheet feeding mechanism on the apparatus main body side. For this reason, when the reel stand is attached to the stand attachment portion of the apparatus main body, it becomes possible to immediately feed out and cut the sheet by a predetermined length. The reel stand includes a release paper reel that winds up the release paper peeled off from the leading edge of the sheet fed by the sheet feeding mechanism. When the reel stand is attached to the stand mounting portion of the apparatus main body, the release paper reel mounted on the reel stand can be driven by the release paper reel drive shaft of the apparatus main body, and the sheet feeding mechanism performs sheet feeding processing. In conjunction with this, release paper can be taken up.

  That is, according to the configuration of (1) above, when the reel stand is attached to the stand mounting portion of the apparatus main body, the sheet is immediately fed out from the sheet reel on the reel stand and cut to a predetermined length, or peeled off from the sheet. It is possible to take up the release paper on the release paper reel.

  In addition, a stand positioning mechanism between the stand mounting portion and the reel stand that allows the reel stand to be easily and accurately positioned when the reel stand is mounted to the stand mounting portion so that the reel stand can be easily replaced. Is provided.

  Therefore, in the sheet cutting apparatus having the configuration (1), the sheet reel around which the sheet is wound is assembled in advance, and the release paper peeled off from the leading end of the sheet pulled out from the sheet reel is fixed to the release paper reel. If a spare reel stand is prepared and the sheets on the reel stand are used up, the operation of the sheet cutting device is stopped and the reel stand is replaced with a spare reel stand. There is no need for paper guidance work, and the sheet cutting apparatus can be restarted immediately.

  Accordingly, it is possible to shorten the work time when replenishing sheets and increase the operating rate of the apparatus.

  According to the configuration of (2) above, the stand positioning mechanism is provided in the two positioning rods at the bottom of the reel stand, the substantially rectangular parallelepiped positioning block protruding from the stand mounting portion, and the sheet feeding mechanism. It is a simple structure comprised by the positioning pin and the positioning hole provided in the sheet | seat front-end | tip support member. The positioning accuracy of the reel stand can be improved by increasing the fitting accuracy between the positioning block and the two positioning rods and the fitting accuracy between the positioning pin and the positioning hole. Therefore, highly accurate positioning of the reel stand can be realized at low cost.

  According to the configuration of (3) above, the sheet feeding length can be accurately determined by a simple calculation process that integrates the rotation amount of the length measuring roller and the circumference of the length measuring roller during the sheet feeding operation. Thus, the reliability of the process of cutting the sheet into a predetermined length can be improved.

  According to the configuration of (4) above, when the reel stand is attached to the stand attachment portion, the free end of the second reel support shaft is positioned at the standby position by the shaft movement mechanism of the reel stand. Sometimes, the free end of the second reel support shaft does not interfere with the release paper reel drive shaft of the apparatus main body, and the reel stand can be safely attached to the stand attachment portion. Then, after the reel stand is mounted on the stand mounting portion, the second reel support shaft is coupled to the release paper reel drive shaft by moving the free end of the second reel support shaft to the coupling position by the reel stand shaft moving mechanism. As a result, the release paper can be wound up in conjunction with the sheet feeding operation.

  In other words, when the reel stand is attached to the stand attachment portion, the shaft moving mechanism simply performs a simple operation of switching the free end of the second reel support shaft from the standby position to the coupling position. The pattern paper can be taken up, and the operation required when the reel stand is attached to the stand attachment portion is simple, and the resumption of the operation of the apparatus can be accelerated.

  According to the configuration (5), the winding length of the release paper per one rotation of the release paper reel increases with the increase in the winding diameter of the release paper in the release paper reel. Therefore, if the release paper reel is simply driven to rotate at a constant rotational speed, the amount of winding increases as the release paper roll diameter increases, causing the release paper to break or peel off due to excessive tension. There is a possibility that the sheet feeding may be hindered by excessive pulling of the paper. However, according to the configuration of (5) above, since the rotational speed of the release paper reel drive shaft is controlled by the torque limiter so that the drive torque does not exceed a predetermined value, even if the winding diameter of the release paper increases. Further, it is possible to prevent the release paper from being broken and the sheet feeding from being hindered, and the reliability of the sheet feeding operation and the release paper winding operation can be improved.

  According to the configuration of (6) above, each time the sheet feeding length reaches a predetermined length, the cutter blade can be advanced to the sheet traveling position to cut the sheet to a predetermined length.

  According to the configuration of (7) above, the release paper wound around the release paper reel on the reel stand has a path to the release paper reel set by the release paper path setting member. For this reason, when light is emitted to the path set by the release paper path setting member, if the release paper remains on the path, the irradiated light is reflected to a predetermined position. Therefore, it is possible to reliably detect the breakage of the release paper depending on the presence or absence of the reflected light.

  According to the sheet cutting apparatus of the present invention, it is possible to use up the sheet on the reel stand assembled to the apparatus main body, shorten the work time when the sheet is replenished, and increase the operating rate of the apparatus.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view of an assembled state of an embodiment of a sheet cutting apparatus according to the present invention. FIG. 2 is a perspective view showing a state in which a cover portion covering the sheet feeding mechanism of the sheet cutting apparatus shown in FIG. 1 is opened. 3 is a view taken in the direction of arrow B in FIG. FIG. 4 is a perspective view showing a method of exchanging the reel stand on the sheet cutting apparatus shown in FIG. FIG. 5 is a perspective view illustrating a state in which the sheet of the reel for the reel stand is used up in the sheet cutting apparatus according to the embodiment. FIG. 6 is a perspective view of the sheet cutting apparatus in which the lid that covers the sheet feeding mechanism is opened in order to remove the reel stand that has used up the sheet from the apparatus main body. FIG. 7 is a view taken in the direction of arrow C in FIG. FIG. 8 is a perspective view of the reel stand removed from the apparatus main body using up the sheet. FIG. 9 is a view taken in the direction of arrow D in FIG. FIG. 10 is an enlarged view showing a schematic configuration of the second reel support portion mounted on the reel stand. FIG. 10A shows a state in which the driving force is cut, and FIG. Represents the state. FIG. 11 is a perspective view of a spare reel stand in which a sheet is replenished with a sheet reel. 12 is a view taken in the direction of arrow E in FIG. FIG. 13 is a perspective view of the apparatus main body in a state in which a lid that covers the top of the sheet feeding mechanism is opened in order to mount a spare reel stand. FIG. 14 is an explanatory diagram of the structure of the sheet placement surface in the sheet feeding mechanism of the apparatus main body shown in FIG. FIG. 15 is an explanatory view of a sheet cutting mechanism provided on the front side of the apparatus main body shown in FIG. FIG. 16 is a schematic diagram illustrating a travel path of a sheet and release paper in the sheet cutting apparatus according to the embodiment. FIG. 17 is an explanatory diagram of a configuration of a sheet cut to a predetermined length. 18 is an explanatory diagram of a state in which the cut sheet bundles the wire harness. FIG. 19 is a schematic configuration diagram of a conventional sheet cutting apparatus.

  Hereinafter, a preferred embodiment of a sheet cutting device according to the present invention will be described in detail with reference to the drawings.

  1 to 16 show an embodiment of a sheet cutting apparatus according to the present invention. FIG. 1 is a perspective view of an assembled state of the sheet cutting apparatus according to an embodiment of the present invention. FIG. FIG. 3 is a perspective view showing a state in which a cover portion covering the sheet feeding mechanism of the sheet cutting device is opened, FIG. 3 is a view as viewed from an arrow B in FIG. 2, and FIG. 4 is a replacement of the reel stand on the sheet cutting device shown in FIG. FIG. 5 is a perspective view showing a state where a sheet of a reel for a reel stand is used up in a sheet cutting apparatus according to an embodiment, and FIG. FIG. 7 is a perspective view of the sheet cutting device with the lid covering the sheet feeding mechanism opened, FIG. 7 is a view as viewed from the direction of arrow C in FIG. 6, and FIG. FIG. 9 is a perspective view of the stand, FIG. FIG. 10 is an enlarged view showing a schematic configuration of a second reel support portion mounted on the reel stand, FIG. 11 is a perspective view of a spare reel stand in which a sheet reel is replenished, FIG. 11 is a perspective view of the apparatus main body with the lid covering the sheet feeding mechanism opened to mount a spare reel stand. FIG. 14 is a perspective view of FIG. 15 is an explanatory view of the structure of the sheet placing surface in the sheet feeding mechanism of the apparatus main body, FIG. 15 is an explanatory view of the sheet cutting mechanism provided on the front side of the apparatus main body shown in FIG. 13, and FIG. It is the schematic which shows the driving | running route of the sheet | seat and release paper in a sheet cutting device.

  The sheet cutting apparatus 1 according to this embodiment is an apparatus that cuts the sheet 110 shown in FIG. 17 into a predetermined length.

  As shown in FIG. 17, the sheet 110 is a belt-like sheet in which an adhesive layer 112 is formed along one side edge of a vinyl sheet main body 111 and a release paper 113 is attached to the adhesive layer 112. It is.

  As shown in FIGS. 1 to 4, the sheet cutting apparatus 1 of the present embodiment includes a sheet reel 4, a release paper reel 5, a reel stand 6, and an apparatus body 7. In addition, the reel stand 6 is also provided with a spare part.

  As shown in FIG. 4, the sheet reel 4 includes a reel shaft 41, a pair of flanges 42 connected to both ends of the reel shaft 41, and a pair of stand attachment portions 43 supported by a reel stand 6 described later. It is equipped with. In the sheet reel 4, a long sheet 110 is wound around the outer periphery of the reel shaft 41 as shown in FIG. 1.

  The pair of stand mounting portions 43 are provided coaxially with the reel shaft 41 on the outer surface side of the pair of flanges 42. The pair of stand attachment portions 43 supports the reel shaft 41 so as to be rotatable. The pair of stand mounting portions 43 are engaged with the first reel support portions 63 provided on a pair of side wall portions 61 and 62 of the reel stand 6 described later, thereby engaging the pair of side wall portions 43a. 61 and 62 are non-rotatably coupled. In the case of the present embodiment, the first reel support portion 63 is a notch hole opened upward, and supports the sheet reel 4 by interrupting the shaft portion 43a from above. In the case of the present embodiment, the first reel support portion 63 supports the reel shaft 41 via a pair of stand attachment portions 43 so as to be rotatable.

  In the case of this embodiment, the reel shaft 41 has a plurality of flange mounting holes 41a with appropriate intervals in the longitudinal direction, as shown in FIG. These flange mounting holes 41a are holes for coupling the flange 42 to the reel shaft 41, and the distance between the pair of flanges 42 can be adjusted by changing the flange mounting holes 41a to be used. The distance between the pair of flanges 42 can be adjusted to match the width of the sheet 110 wound around the reel shaft 41.

  The release paper reel 5 is a reel for winding the release paper 113 peeled from the sheet 110. As shown in FIG. 4, the release paper reel 5 is rotatably attached to a side wall 62 on one side of the reel stand 6 described later so as to correspond to the position of the release paper 113 on the sheet 110.

  As shown in FIGS. 4, 8, and 9, the reel stand 6 includes a pair of side wall portions 61 and 62 that are disposed to face each other in the axial direction of the reel shaft 41 of the sheet reel 4, and the sheet reel 4. A first reel support portion 63 that is rotatably supported, a second reel support portion 64 that rotatably supports the release paper reel 5, a sheet tip support member 65, and bottom portions (lower portions) of the pair of side wall portions 61 and 62. ), A pair of connecting rods 67a and 67b connecting intermediate portions in the height direction of the pair of side wall portions 61 and 62, and a plurality of release papers. A route setting member 68a.

  In the case of this embodiment, as shown in FIG. 4, the pair of side wall portions 61 and 62 includes two positioning rods 66a and 66b that mutually couple the bottom portions (lower portions) of the pair of side wall portions 61 and 62, and a pair of side wall portions 61 and 62. A pair of connecting rods 67a and 67b that mutually couple the intermediate portions of the side wall portions 61 and 62 in the height direction are coupled to each other at a predetermined interval.

  Further, as shown in FIG. 9, a pair of side wall portions 61 and 62 is fixedly equipped with a handle 611 serving as a grip portion when the reel stand 6 is conveyed.

  In the case of this embodiment, the first reel support portion 63 is a notch hole with which the shaft portion 43a of the stand mounting portion 43 of the seat reel 4 engages, as described above, via the pair of stand mounting portions 43. The reel shaft 41 is rotatably supported.

  As shown in FIGS. 4 and 9, the second reel support portion 64 is provided on the side wall portion 62 on one side of the reel stand 6.

  As shown in FIG. 10, the second reel support portion 64 in this embodiment includes a second reel support shaft 641 that passes through the center of the release paper reel 5 and rotates integrally with the release paper reel 5, and the second reel support shaft 641. Axial movement that moves a bearing portion 642 that rotatably supports one end of the two-reel support shaft 641 and a second reel support shaft 641 supported by the bearing portion 642 in the axial direction (the direction of arrow A1 in FIG. 10B). And a mechanism 643.

  As shown in FIG. 10, the shaft moving mechanism 643 includes a rib 643a protruding from the side wall 62, a locking protrusion 643b protruding from the outer periphery of the second reel support shaft 641 and capable of contacting the rib 643a. A spring 643c that urges the second reel support shaft 641 to move to the inside of the side wall 62 (indicated by the arrow A1 in FIG. 10B), and a valley 643d between the ribs 643a. .

  As shown in FIG. 10A, in a state where the locking protrusion 643b is in contact with the rib 643a, the free end 641a of the second reel support shaft 641 supported by the bearing portion 642 is positioned at the standby position P1. ing.

  As shown by arrow M1 in FIG. 10B, the locking protrusion 643b is separated from the rib 643a when the second reel support shaft 641 is rotated around the axis by a predetermined angle, and the valley provided between the ribs 643a. 643d becomes immersive. When the locking protrusion 643b is disengaged from the rib 643a, the second reel support shaft 641 moves toward the inside of the side wall portion 62 by the biasing force of the spring 643c as shown in FIG. The free end 641a of the support shaft 641 moves to the coupling position P2. The coupling position P2 is a position that is coupled to a release paper reel drive shaft 75 of the apparatus main body 7 to be described later at a position that is separated from the standby position P1 by a specified length in the axial direction.

  In other words, the shaft moving mechanism 643 described above is a combination in which the free end 641a of the second reel support shaft 641 supported by the bearing portion 642 is separated from the standby position P1 by a specified length in the axial direction from the standby position P1. The position can be switched to the position P2.

  As shown in FIGS. 4 and 9, the sheet front end support member 65 includes a beam portion 651 projecting from the side wall portion 62 on one side of the reel stand 6 in the feeding direction of the sheet 110 (in the direction of arrow A <b> 3 in FIG. 9), A first sheet position restricting portion 652 projecting from the base end side of the portion 651 in the width direction of the sheet 110, a tip support portion 653 projecting from the tip of the beam portion 651 in the width direction of the sheet 110, and an intermediate portion of the beam portion 651 And a second sheet position restricting portion 654 projecting in the width direction of the sheet 110. As shown in FIG. 4, the front end support portion 653 holds the front end of the sheet 110 pulled out from the sheet reel 4 attached to the reel stand 6 by a pair of upper and lower regulating members 653 a and 653 b.

  The sheet front end support member 65 of this embodiment is configured such that the front end side of the sheet 110 wound around the sheet reel 4 attached to the first reel support portion 63 of the reel stand 6 is connected to the first sheet position restricting portion 652. The second sheet position restricting portion 654 and the leading end support portion 653 are supported in a horizontally extended state.

  When the reel stand 6 is attached to the apparatus main body 7, the front end portion of the sheet 110 supported in a state of being horizontally extended by the sheet front end support member 65 is placed on the sheet feeding mechanism 72 of the apparatus main body 7. Then, the sheet 110 is brought into contact with the sheet feeding mechanism 72 and the sheet 110 can be fed out by the sheet feeding mechanism 72. That is, the sheet leading end support member 65 passes the leading end of the supporting sheet 110 to the sheet feeding mechanism 72.

  In the case of the present embodiment, as shown in FIG. 4, the regulation member 653 b below the tip support portion 653 is provided with a step portion D <b> 6 that allows the sticking of the adhesive layer 112 of the sheet 110 to escape. The step portion D6 has a recess depth that prevents the adhesive layer 112 from contacting.

  The two positioning rods 66a and 66b connecting the bottom portions (lower portions) of the pair of side wall portions 61 and 62 are positioning blocks 76 on the apparatus main body 7 side when the reel stand 6 is assembled to the apparatus main body 7. Forms a gap for fitting.

  Further, as shown in FIG. 13, two positioning pins 724 are provided on the upper surface of the side wall 723 of the sheet feeding mechanism 72. On the other hand, a positioning hole 655 (see FIGS. 9 and 12) that fits the positioning pin 724 is provided in each of the portions corresponding to the positioning pins 724 on the lower surface of the sheet leading end support member 65. These positioning pins 724 and positioning holes 655 also form part of the positioning mechanism. Then, the positioning pin 724 is fitted into the positioning hole 655, so that the sheet leading end support member 65 is accurately positioned with respect to the sheet feeding mechanism 72.

  The stand positioning mechanism for positioning the reel stand 6 on the apparatus main body 7 includes two positioning rods 66a and 66b, a positioning block 76, positioning pins 724, and positioning holes 655.

  As shown in FIG. 4, the plurality of release paper path setting members 68 a are guide rollers protruding from the side wall 62, and as shown in FIG. 16, the leading edge of the sheet 110 supported by the sheet leading edge support member 65. The path to the release paper reel 5 of the release paper 113 fixed to the release paper reel 5 is regulated.

  As shown in FIGS. 4 and 13, the apparatus main body 7 includes a stand mounting portion 71 to which the reel stand 6 can be attached and detached, a sheet feeding mechanism 72, a lid portion 73 that covers the sheet feeding mechanism 72 so as to be openable and closable, A sheet cutting mechanism 74 and a release paper reel drive shaft 75 (see FIG. 10) are provided.

  As shown in FIG. 13, the stand attachment portion 71 includes a horizontal placement surface 711 on which the reel stand 6 is placed, a positioning block 76 for positioning the reel stand 6 placed on the reel stand 6, and a mold release A paper out detection detection sensor 718.

  The positioning block 76 constitutes a stand positioning mechanism 8 that positions the reel stand 6 on the positioning block 76 in cooperation with the two positioning rods 66a and 66b of the reel stand 6 described above. The positioning block 76 is a substantially rectangular parallelepiped block, and is fitted in one side 66s (see FIG. 4) of the gap formed by the two positioning rods 66a and 66b in a two-way direction of the reel stand 6. Positioning is performed to accurately position the reel stand 6.

  In other words, the sheet cutting apparatus 1 of the present embodiment positions the reel stand 6 easily and accurately when the reel stand 6 is attached to the stand attachment portion 71 between the stand attachment portion 71 and the reel stand 6. This is provided with a stand positioning mechanism 8 that can be easily replaced with the reel stand 6.

  The release paper breakage detection confirmation sensor 718 uses a light projecting / receiving sensor, and as shown in FIG. 16, the release paper 113 wound on the release paper reel 5 on the reel stand 6 attached to the stand attachment portion 71. Irradiation of light to the path of, and release of the release paper is detected by the presence or absence of reflection of the irradiated light.

  As shown in FIG. 17, the adhesive layer 112 and the release paper 113 on the sheet 110 may be discontinuous without being continuous. When there is such a discontinuous part of the release paper 113 during the feeding of the sheet 110, the feeding of the sheet 110 is stopped and the release paper 113 following the discontinuous part is fixed to the release paper reel 5. There is a need to. For this purpose, the presence or absence of the release paper 113 is detected by the release paper breakage detection confirmation sensor 718.

  As shown in FIG. 13, when the sheet feeding mechanism 72 opens the lid portion 73, the horizontal upper surface portion 72 a is exposed. Further, as shown in FIG. 14, a stepped portion that is recessed from the upper surface portion 72 a so that the adhesive layer 112 is in contact with the adhesive layer 112 of the sheet 110 so as not to interfere with the conveyance of the sheet 110. D7 is formed. The step portion D7 has a depth of depression so that the adhesive layer 112 does not contact. In this embodiment, when the reel stand 6 is set on the stand mounting portion 71 with the lid 73 open, the lower surface of the sheet 110 that is horizontally supported by the sheet tip support member 65 of the reel stand 6 is It will be in the state mounted in the upper surface part 72a. Further, the adhesive layer 112 of the sheet 110 projects over the step portion D7. In this state, when the stand attachment portion 43 is closed, the lower surface of the sheet 110 that is horizontally supported by the sheet leading end support member 65 is pressed against the upper surface portion 72a.

  As shown in FIGS. 13 and 16, the upper surface 72 a of the sheet feeding mechanism 72 includes a feeding roller 721 that feeds the sheet 110 by being rotationally driven in contact with one side of the sheet 110, and one side of the sheet 110. , And a length measuring roller 722 that rotates following the traveling of the sheet 110.

  As shown in FIGS. 13 and 16, the lid portion 73 includes a pressing roller 731 disposed at a position facing the feeding roller 721 and a pressing roller 732 disposed at a position facing the length measuring roller 722. Is provided. That is, as shown in FIG. 16, the lid portion 73 presses the sheet 110 against the feeding roller 721 and the length measuring roller 722 by the pressing rollers 731 and 732, and slides between the rollers 721 and 722 and the sheet 110. Is prevented from occurring.

  The sheet feeding mechanism 72 according to the present embodiment feeds the sheet 110 from the sheet reel 4 on the reel stand 6 attached to the stand attaching portion 71 by a feeding roller 721 that contacts the lower surface of the sheet 110.

  In the sheet cutting apparatus 1 according to the present embodiment, an arithmetic processing unit that calculates the feeding length of the sheet 110 from the rotation amount of the length measuring roller 722 provided in the sheet feeding mechanism 72 is provided. The feeding length of the sheet 110 is detected from the rotation amount.

  The sheet cutting mechanism 74 is disposed on the downstream side of the sheet feeding mechanism 72 and inside the front cover 77 of the apparatus main body 7 shown in FIG. As shown in FIG. 15, the sheet cutting mechanism 74 of the present embodiment includes a cutter blade 741 and a crank mechanism 742 that reciprocates the cutter blade 741. The cutter blade 741 is disposed on the downstream side of the sheet feeding mechanism 72 so as to be able to advance and retreat in a direction orthogonal to the surface of the sheet 110 fed from the sheet feeding mechanism 72 (in the direction of arrow A4 in FIG. 15). The crank mechanism 742 advances and retracts the cutter blade 741 to and from the traveling position of the sheet 110 by a crank rod 742 a that reciprocates in the vertical direction based on the rotation amount of the length measuring roller 722, and the sheet 110 fed out by the sheet feeding mechanism 72. Is cut to a predetermined length.

  The release paper reel drive shaft 75 is mounted on the stand mounting portion 71 of the apparatus main body 7. As shown in FIG. 10B, the release paper reel drive shaft 75 is configured such that the second reel support shaft 641 on the reel stand 6 attached to the stand attachment portion 71 moves to the coupling position P2. The free end 641a of the support shaft 641 is coupled. The release paper reel drive shaft 75 coupled to the second reel support shaft 641 can rotate the second reel support shaft 641 with a rotational force transmitted from a drive mechanism (not shown).

  The release paper reel drive shaft 75 operates in conjunction with the feed roller 721 of the sheet feed mechanism 72 so that the release paper 113 on the sheet 110 fed by the sheet feed mechanism 72 is sequentially wound around the release paper reel 5. The release paper reel 5 on the reel stand 6 is driven to rotate.

  Although not shown, the mechanism for driving the release paper reel drive shaft 75 in the present embodiment is provided with a torque limiter for limiting the drive torque of the release paper reel drive shaft 75 to within a specified value. The rotational speed of the release paper reel drive shaft 75 is controlled so that the drive torque does not exceed a predetermined value.

  In the case of the sheet cutting apparatus 1 of the present embodiment described above, the reel stand 6 is pulled out from the sheet reel 4 set on the reel stand 6 when the reel stand 6 is attached to the stand attaching portion 71 of the apparatus body 7. The leading end of the sheet 110 is transferred to the sheet feeding mechanism 72 on the apparatus main body 7 side by the sheet leading end support member 65. For this reason, when the reel stand 6 is attached to the stand attachment portion 71 of the apparatus main body 7, the sheet 110 can be immediately fed out by a predetermined length and cut.

  The reel stand 6 includes a release paper reel 5 that winds the release paper 113 peeled off from the leading end of the sheet 110 fed out by the sheet feeding mechanism 72. The release paper reel 5 mounted on the reel stand 6 can be driven by the release paper reel drive shaft 75 of the apparatus body 7 when the reel stand 6 is attached to the stand mounting portion 71 of the apparatus body 7. The release paper 113 can be taken up in conjunction with the feeding process of the sheet 110 by the feeding mechanism 72.

  That is, according to the sheet cutting apparatus 1 of the present embodiment, when the reel stand 6 is attached to the stand attachment portion 71 of the apparatus body 7, the sheet 110 is immediately fed out from the sheet reel 4 on the reel stand 6 to a predetermined length. The work of cutting and the work of winding the release paper 113 peeled off from the sheet 110 onto the release paper reel 5 can be performed.

  In addition, when the reel stand 6 is attached to the stand attachment portion 71 between the stand attachment portion 71 and the reel stand 6, the reel stand 6 can be easily and accurately positioned so that the reel stand 6 can be replaced. A stand positioning mechanism 8 is provided to facilitate.

  Therefore, in the sheet cutting apparatus 1 of the present embodiment, the sheet reel 4 around which the sheet 110 is wound is assembled, and the release paper 113 peeled off from the front end of the sheet 110 pulled out from the sheet reel 4 is used for the release paper. When a spare reel stand 6 fixed to the reel 5 is prepared and the sheet 110 on the reel stand 6 is used up, the operation of the sheet cutting apparatus 1 is stopped and the reel stand 6 and the spare reel stand 6 are all Therefore, it is possible to immediately resume the operation of the sheet cutting apparatus 1 without the need for a labor for guiding the release paper, which is troublesome at the time of replacement.

  Accordingly, it is possible to shorten the work time when the sheet 110 is replenished and to increase the operating rate of the apparatus.

  Further, in the sheet cutting apparatus 1 of the present embodiment, the stand positioning mechanism 8 includes the positioning rods 66 a and 66 b at the bottom of the reel stand 6 and the substantially rectangular parallelepiped positioning projecting from the stand mounting portion 71. The block 76 is a simple configuration. The positioning accuracy of the reel stand 6 is improved by increasing the fitting accuracy between the positioning block 76 and the two positioning rods 66a and 66b and the fitting accuracy between the positioning pin 724 and the positioning hole 655. Can do. Therefore, highly accurate positioning of the reel stand 6 can be realized at low cost.

  In the sheet cutting apparatus 1 of the present embodiment, the sheet 110 is simply calculated by integrating the rotation amount of the length measuring roller 722 and the circumference of the length measuring roller 722 when the sheet 110 is fed. Can be accurately detected, and the reliability of the process of cutting the sheet 110 into a predetermined length can be improved.

  In the sheet cutting apparatus 1 of the present embodiment, when the reel stand 6 is attached to the stand attachment portion 71, the free end 641a of the second reel support shaft 641 is moved to the standby position P1 by the shaft moving mechanism 643 of the reel stand 6. Therefore, the free end 641a of the second reel support shaft 641 does not interfere with the release paper reel drive shaft 75 of the apparatus body 7 at the time of attachment, and the reel stand 6 is safely attached to the stand attachment portion 71. be able to.

  Then, after the reel stand 6 is attached to the stand attachment portion 71, when the free end 641a of the second reel support shaft 641 is moved to the coupling position P2 by the shaft moving mechanism 643 of the reel stand 6, the second reel support shaft 641. Is coupled to the release paper reel drive shaft 75, and the winding operation of the release paper 113 in conjunction with the feeding operation of the sheet 110 becomes possible.

  That is, when the reel stand 6 is attached to the stand attachment portion 71, the shaft moving mechanism 643 simply performs a simple operation of switching the free end 641a of the second reel support shaft 641 from the standby position P1 to the coupling position P2. The release paper 113 can be taken up by the release paper reel 5, the operation required when the reel stand 6 is attached to the stand attachment portion 71 is simple, and the resumption of the operation of the apparatus can be accelerated.

  Further, in the sheet cutting apparatus 1 of the present embodiment, the winding length of the release paper 113 per one rotation of the release paper reel 5 increases as the winding diameter of the release paper 113 in the release paper reel 5 increases. . Therefore, if the release paper reel 5 is simply driven to rotate at a constant rotational speed, the winding amount increases as the winding diameter of the release paper 113 increases, and the release paper 113 breaks with excessive tension. In addition, there is a possibility that the feeding of the sheet 110 may be hindered due to excessive pulling of the release paper. However, in the sheet cutting apparatus 1 of the present embodiment, since the rotational speed of the release paper reel drive shaft 75 is controlled by the torque limiter so that the drive torque does not exceed a predetermined value, the winding diameter of the release paper 113 is reduced. Even if it increases, it is possible to prevent breakage of the release paper 113 and trouble in feeding the sheet 110, and the reliability of the feeding operation of the sheet 110 and the winding operation of the release paper 113 can be improved.

  Further, in the sheet cutting apparatus 1 of the present embodiment, every time the feeding length of the sheet 110 reaches a predetermined length, the cutter blade 741 is advanced to the traveling position of the sheet 110 to cut the sheet 110 to a predetermined length. can do.

  In the sheet cutting apparatus 1 of the present embodiment, the release paper 113 wound around the release paper reel 5 on the reel stand 6 is set with a path to the release paper reel 5 by the release paper path setting member 68a. Yes. Therefore, when light is emitted to the path set by the release paper path setting member 68a, if the release paper 113 remains in the path, the irradiated light is reflected to a predetermined position. Therefore, it is possible to reliably detect the breakage of the release paper 113 based on the presence or absence of reflected light.

In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.
For example, the sheet to be cut according to the present invention is not limited to a vinyl sheet.

  Here, the features of the embodiment of the sheet cutting apparatus according to the present invention described above are briefly summarized and listed in the following [1] to [7], respectively.

[1] For a sheet in which an adhesive layer (112) is formed along one side edge of one side and a belt-like sheet (110) having a release paper (113) attached thereto is wound around the adhesive layer (112) Reel (4),
A release paper reel (5) for winding up the release paper (113) peeled from the sheet (110);
A reel having a first reel support portion (63) for rotatably supporting the sheet reel (4) and a second reel support portion (64) for rotatably supporting the release paper reel (5). A stand (6);
A stand mounting portion (71) to which the reel stand (6) can be attached and detached, and the seat (110) from the sheet reel (4) on the reel stand (6) attached to the stand mounting portion (71). The sheet feeding mechanism (72) for feeding the sheet, the sheet cutting mechanism (74) for cutting the sheet (110) fed by the sheet feeding mechanism (72) to a predetermined length, and the sheet feeding mechanism (72). The reel paper (113) on the reel (5) is interlocked with the sheet feed mechanism (72) so that the release paper (113) on the sheet (110) is sequentially wound on the reel for release paper (5). An apparatus body (7) comprising a release paper reel drive shaft (75) for rotationally driving the release paper reel (5);
A sheet cutting device (1) comprising:
The reel stand (6) supports the front end of the sheet (110) wound around the sheet reel (4) attached to the first reel support portion (63), and also supports the reel stand (6). ) Is provided with a sheet front end support member (65) that passes the front end of the sheet (110) supported when the stand is attached to the stand mounting portion (71) to the sheet feeding mechanism (72),
When the reel stand (6) is attached to the stand attachment portion (71) between the stand attachment portion (71) and the reel stand (6), the reel stand (6) is easily and accurately attached. The sheet cutting device (1) is provided with a stand positioning mechanism (8) that can position the reel stand (6) and facilitate replacement of the reel stand (6).

[2] The stand positioning mechanism (8) protrudes from the two positioning rods (66a, 66b) installed on the bottom of the reel stand (6) and the stand mounting portion (71). A substantially rectangular parallelepiped positioning block (76) that fits on one side of the gap formed by the two positioning rods (66a, 66b) when the reel stand (6) is placed on the stand mounting portion (71). When,
A positioning pin (724) provided in the sheet feeding mechanism (72), a positioning hole (655) provided in the sheet leading end support member (65),
The reel is obtained by fitting the positioning block (76) between the two positioning rods (66a, 66b) and fitting the positioning pin (724) and the positioning hole (655). The sheet cutting device (1) according to the above [1], wherein the stand (6) is positioned.

[3] The sheet feeding mechanism (72) is rotationally driven while being in contact with one surface of the sheet (110), thereby feeding the sheet (110), and the sheet (110). A length measuring roller (722) that abuts on one side of the sheet and rotates following the traveling of the sheet (110),
The sheet cutting device (1) according to [1] or [2], wherein a feeding length of the sheet (110) is detected from a rotation amount of the length measuring roller (722).

[4] The second reel support portion (64) includes a second reel support shaft (641) that rotates through the center of the release paper reel (5) and rotates integrally with the release paper reel (5). A bearing portion (642) that rotatably supports one end of the second reel support shaft (641), and a free end (641a) of the second reel support shaft (641) supported by the bearing portion (642). A shaft moving mechanism (643) that can switch between a standby position (P1) and a coupling position (P2) that is spaced apart from the standby position (P1) in the axial direction by a specified length,
The second reel supporting shaft (641) on the reel stand (6) attached to the stand attaching portion (71) is connected to the stand attachment portion (71) of the apparatus main body (7) in the coupling position ( A release paper reel drive shaft (75) that is coupled to the free end (641a) of the second reel support shaft (641) when moved to P2) and can rotate the second reel support shaft (641). )
The release paper reel drive shaft (75) is driven in conjunction with the feed roller (721).
The sheet cutting device (1) according to the above [3], which is characterized in that

  [5] The mechanism for driving the release paper reel drive shaft (75) is provided with a torque limiter for limiting the drive torque of the release paper reel drive shaft (75) to within a specified value. The sheet cutting device (1) according to the above [4], wherein the rotational speed of the release paper reel drive shaft (75) is controlled so as not to exceed the value.

  [6] The sheet cutting mechanism (74) is disposed on the downstream side of the sheet feeding mechanism (72) so as to be able to advance and retreat in a direction orthogonal to the surface of the sheet (110) fed from the sheet feeding mechanism (72). And a crank mechanism (742) for moving the cutter blade (741) back and forth to the travel position of the sheet (110) based on the rotation amount of the length measuring roller (722). The sheet cutting device (1) according to any one of [3] to [5] above.

[7] The reel stand (6) is separated from the front end of the sheet (110) supported by the sheet front end support member (65) and fixed to the release paper reel (5). 113) a release paper path setting member (68a) for restricting the path to the release paper reel (5) of 113),
The stand mounting portion (71) of the apparatus main body (7) has the release reel wound on the release paper reel (5) on the reel stand (6) mounted on the stand mounting portion (71). The above-mentioned [1] to [1], comprising a release paper break detection confirmation sensor (718) for irradiating light to the path of the pattern paper (113) and detecting the release paper breakage by the presence or absence of reflection of the irradiated light. 6] The sheet cutting device (1) according to any one of the above.

DESCRIPTION OF SYMBOLS 1 Sheet cutting device 4 Reel for sheet 5 Reel for release paper 6 Reel stand 7 Apparatus main body 8 Stand positioning mechanism 63 1st reel support part 64 2nd reel support part 65 Sheet front end support member 66a, 66b Positioning rod 68a Release paper path Setting member 71 Stand mounting portion 72 Sheet feeding mechanism 74 Sheet cutting mechanism 75 Release paper reel drive shaft 76 Positioning block 110 Sheet 112 Adhesive layer 113 Release paper 641 Second reel support shaft 641a Free end 642 Bearing portion 643 Axis moving mechanism 718 Release Paper pattern detection sensor 721 Feed roller 722 Length measuring roller 741 Cutter blade 742 Crank mechanism P1 Standby position P2 Coupling position

Claims (7)

A sheet reel in which a pressure-sensitive adhesive layer is formed along one side edge of one side and a belt-like sheet having a release paper attached thereto is wound on the pressure-sensitive adhesive layer;
A release paper reel for winding up the release paper released from the sheet;
A reel stand comprising: a first reel support portion that rotatably supports the sheet reel; and a second reel support portion that rotatably supports the release paper reel;
A stand mounting portion to which the reel stand can be attached and detached, a sheet feeding mechanism for feeding the sheet from the reel for sheet on the reel stand attached to the stand mounting portion, and the sheet fed by the sheet feeding mechanism A sheet cutting mechanism that cuts the length of the sheet, and the reel stand in conjunction with the sheet feeding mechanism so that the release paper on the sheet fed by the sheet feeding mechanism is sequentially wound on the release paper reel. A release paper reel drive shaft that rotationally drives the release paper reel above, an apparatus main body,
A sheet cutting device comprising:
The reel stand supports a front end of the sheet wound around the reel for the sheet attached to the first reel support portion and supports the reel stand when the reel stand is attached to the stand attachment portion. A sheet leading end support member for passing the leading end of the sheet to the sheet feeding mechanism;
When the reel stand is attached to the stand attachment portion, the reel stand can be easily and accurately positioned between the stand attachment portion and the reel stand, and the reel stand can be easily replaced. A sheet cutting device comprising a stand positioning mechanism. The stand positioning mechanism includes two positioning rods erected on the bottom of the reel stand, and the two positioning rods when the reel stand is placed on the stand mounting portion so as to protrude from the stand mounting portion. A substantially rectangular parallelepiped positioning block that fits on one side of the gap formed by the rod for use;
A positioning pin provided in the sheet feeding mechanism, a positioning hole provided in the sheet leading end support member,
The reel stand is positioned by fitting the positioning block between two positioning rods and fitting the positioning pin and the positioning hole. Sheet cutting device. The sheet feeding mechanism is rotated while being in contact with one side of the sheet, and a length measuring roller that rotates and follows the running of the sheet by contacting the one side of the sheet and feeding the sheet. And a roller for
The sheet cutting device according to claim 1, wherein a feeding length of the sheet is detected from a rotation amount of the length measuring roller. The second reel support portion rotatably supports one end of the second reel support shaft, and a second reel support shaft that rotates through the center of the release paper reel and rotates integrally with the release paper reel. A shaft moving mechanism that makes it possible to switch the position of the free end of the second reel support shaft supported by the bearing portion between a standby position and a coupling position that is spaced apart from the standby position by a specified length in the axial direction; With
The stand attachment portion of the apparatus main body is coupled to the free end of the second reel support shaft when the second reel support shaft on the reel stand attached to the stand attachment portion moves to the coupling position. A release paper reel drive shaft capable of rotating and driving the second reel support shaft,
The release paper reel drive shaft is driven in conjunction with the feed roller;
The sheet cutting device according to claim 3.   The mechanism for driving the release paper reel drive shaft is provided with a torque limiter for limiting the drive torque of the release paper reel drive shaft within a specified value, so that the release torque does not exceed a predetermined value. The sheet cutting device according to claim 4, wherein the rotational speed of the reel drive shaft is controlled.   The sheet cutting mechanism is based on a cutter blade disposed on the downstream side of the sheet feeding mechanism so as to be able to advance and retreat in a direction orthogonal to the surface of the sheet fed from the sheet feeding mechanism, and a rotation amount of the length measuring roller. And a crank mechanism for moving the cutter blade back and forth to the travel position of the sheet. 6. The sheet cutting device according to claim 3, further comprising: The reel stand is configured to set a release paper path that regulates a path of the release paper that is peeled off from the front end of the sheet supported by the sheet front end support member and fixed to the release paper reel to the release paper reel. A member,
The stand mounting portion of the apparatus main body irradiates light onto the path of the release paper wound around the release paper reel on the reel stand attached to the stand mounting portion, and reflects the irradiated light The sheet cutting device according to any one of claims 1 to 6, further comprising a release paper breakage detection confirmation sensor that detects a release paper breakage depending on the presence or absence of the release sheet.

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