JP6530229B2 - Tape folding mechanism - Google Patents

Description

  The present invention relates to a tape folding mechanism applicable to, for example, a cutting mechanism of a tape cutter.

  For example, when packaging goods in clothes, food and drink, etc., the packaging is sealed using an adhesive tape. Usually, in the pressure-sensitive adhesive tape, the entire surface of the pressure-sensitive adhesive surface adheres to the object and adheres firmly. On the other hand, the sealing with an adhesive tape needs to be peeled off by the user when using the product. For example, when an adhesive tape is used to seal a packaging box of a fragile product such as a cake, if the adhesive tape closely attached to the package is peeled off with force, the box is distorted and the product is tilted or falls There is a risk of In addition, when the adhesive tape is peeled off, the wrapping paper may be torn, and it is difficult to reuse the paper bag and wrapping paper used for the wrapping.

  Therefore, conventionally, in order to easily peel off the tape, the tip of the tape may be folded to form a tab in which the adhesive surfaces of the adhesive tape are bonded to each other. Since the adhesive agent is not exposed, it becomes possible to pick up the tab and to peel off an adhesive tape in the tab which bonded adhesive surfaces. Although such a tab was manually formed by a salesperson of goods, a tape cutter has been devised to form the tab in order to improve the workability.

  As a tape cutter having a folding function, a tape cutter provided with a roller and a movably provided arm as a tape cutting mechanism and magnets provided on the roller and the arm has been proposed. In this tape cutter, the tape is cut using a blade provided at the tip of the arm at a position where the adhesive surface of the adhesive tape is in contact with the roller and the arm moves and is most separated from the roller. The attractive force of the magnet then causes the arm to approach the roller and form a tab.

JP 2014-227301

  However, with conventional tape cutters that relied only on the attraction of the magnet, the repeatability for tab formation was low. The adhesive tape is cut at the position where the arm is farthest from the roller. Therefore, when the arm moves to the roller side after the adhesive tape is cut, the tape may come off from the blade of the arm, and a tab may not be formed. In addition, since the adhesion of the adhesive tape to the blade is insufficient, when the arm moves to the roller side, the adhesive surfaces of the adhesive tape may stick to each other, and a desired tab may not be formed.

  The present invention has been proposed to solve the above problems. An object of the present invention is to provide a tape folding mechanism capable of reliably forming a tab.

  The tape folding mechanism of the present invention is characterized by having the following configuration.

(1) A tape folding mechanism provided on one end side of a tape cutter for cutting an adhesive tape, including a support portion for supporting the adhesive tape at the tip, which descends from the support portion toward the other end A plate having an inclined surface inclined in a direction, an upper movable body rotatably provided above the plate and having a first surface opposite to the upper surface of the inclined surface, and rotatable below the plate And a lower movable body having a second surface facing the lower surface of the inclined surface, and the first surface and the second surface are provided to face each other with different polarities. Each lower magnet includes a permanent magnet, the lower moving body includes a cutting portion, and the cutting portion includes a horizontal surface substantially parallel to the adhesive tape and a blade provided at a tip of the horizontal surface, the upper portion The tip of the mobile and the lower mobile Between the blades, is arranged with a predetermined distance, the plate has a vertical piece which is provided so as to rise from the inclined surface, the tip of the vertical piece, the first release member It is characterized in that it is provided .

(2) A tape folding mechanism provided on one end side of a tape cutter for cutting an adhesive tape, including a support portion for supporting the adhesive tape at the tip, which descends from the support portion toward the other end A plate having an inclined surface inclined in a direction, an upper movable body rotatably provided above the plate and having a first surface opposite to the upper surface of the inclined surface, and rotatable below the plate And a lower movable body having a second surface facing the lower surface of the inclined surface, and the first surface and the second surface are provided to face each other with different polarities. Each lower magnet includes a permanent magnet, the lower moving body includes a cutting portion, and the cutting portion includes a horizontal surface substantially parallel to the adhesive tape and a blade provided at a tip of the horizontal surface, the upper portion The tip of the mobile and the lower mobile Between the blade and the blade, a predetermined distance is provided, and the upper surface of the upper movable body is provided with a rounded recess, and the central portion of the end portion on the adhesive tape side of the recess is provided. , And an arc-shaped notch is formed.

(3) A tape folding mechanism provided on one end side of a tape cutter for cutting an adhesive tape, including a support portion for supporting the adhesive tape at the tip, which descends from the support portion toward the other end A plate having an inclined surface inclined in a direction, an upper movable body rotatably provided above the plate and having a first surface opposite to the upper surface of the inclined surface, and rotatable below the plate And a lower movable body having a second surface facing the lower surface of the inclined surface, and the first surface and the second surface are provided to face each other with different polarities. Each lower magnet includes a permanent magnet, the lower moving body includes a cutting portion, and the cutting portion includes a horizontal surface substantially parallel to the adhesive tape and a blade provided at a tip of the horizontal surface, the upper portion The tip of the mobile and the lower mobile Between the blades are arranged to have a predetermined distance, the permanent magnet provided on the lower moving body, the cushioning material is attached, characterized by.

(4) A second mold release material is provided on the plate, and the second mold release material has a surface having a plurality of projections which become the inclined surface, and an end of a wave which becomes the support section. May be included.

  (5) The tip of the upper moving body and the blade of the lower moving body may be provided to face each other at a predetermined height.

(6) A third mold release material is provided in the vicinity of the cut portion, and the third mold release material has a tip formed in a corrugated shape and has a protrusion at the tip of a convex portion forming the corrugated shape. May be

(7) The permanent magnet may be a neodymium magnet and may have a strength of 200 GS .

(8) A stopper may be provided to restrict the downward movement of the lower moving body, and the stopper may have a plurality of restricting positions .

  According to the present invention, by providing a horizontal surface at the cutting portion of the adhesive tape and providing a blade at the tip of the horizontal surface, the adhesive tape does not stick to this horizontal surface and can not be detached, so a tape can be formed reliably. Can provide a folding mechanism.

It is a figure which shows an example of the tape cutter to which the tape folding mechanism which concerns on the 1st Embodiment of this invention is applied, (a) is a perspective view in the state which an upper moving body and a lower moving body contact a plate, (b ) Is a cross-sectional view of a state in which the upper moving body and the lower moving body are in contact with the plate. It is a figure which shows an example of the tape cutter to which the tape folding mechanism which concerns on the 1st Embodiment of this invention is applied, and (a) is a perspective view in the state where a plate, an upper moving body, and a lower moving body separated. b) is a cross-sectional view of a state in which the plate and the upper moving body and the lower moving body are separated. It is an expanded sectional view of a tape folding mechanism concerning a 1st embodiment of the present invention. It is a figure which shows an example of a plate, (a) is sectional drawing, (b) is a perspective view. It is a figure which shows an example of a mold release material, (a) is a perspective view, (b) is a side view, (c) is a top view, (d) is a bottom view. It is a figure which shows an example of an upper moving body, (a) is sectional drawing, (b) is a perspective view. It is a figure which shows an example of a lower moving body, (a) and (c) is sectional drawing, (b) is a perspective view. It is a figure which shows an example of a cutting part, (a) is a perspective view, (b) is a side view, (c) is a top view. It is a figure which shows an example of a mold release material, (a) is a perspective view, (b) is a top view, (c) is a front view. It is a figure explaining the operation | movement of the folding mechanism of a tape, (a) is sectional drawing of the state from which the adhesive tape was pulled out, (b) is sectional drawing of the state in which the tab was formed.

[1. First embodiment]
[1-1. Constitution]
Hereinafter, an embodiment of a tape folding mechanism according to the present invention will be described with reference to the drawings. FIGS. 1 and 2 are a perspective view and a cross-sectional view showing the configuration of a tape cutter to which the tape folding mechanism of the present embodiment is applied. FIG. 3 is an enlarged cross-sectional view of the folding mechanism. In the following description, in the drawn pressure-sensitive adhesive tape, the side on which the adhesive is not applied may be expressed as the upper side, and the side on which the adhesive is applied may be expressed as the lower side. In each member, the end in the direction in which the adhesive tape is pulled out, that is, the end on the side opposite to the supply side of the adhesive tape may be expressed as a tip.

(Schematic configuration)
The tape folding mechanism is provided on one end side of the tape cutter C that cuts the adhesive tape T. The adhesive tape T is a tape in which an adhesive is applied to one surface of a long tape made of cellophane, paper, synthetic resin or the like as a constituent material. Hereinafter, the surface to which the adhesive is applied is referred to as an adhesive surface. The pressure-sensitive adhesive tape T is processed into a roll, and is fitted to a reel R as a support. The reel R has a rotating shaft, and the adhesive tape T is rotatably supported by the tape cutter C. In the tape cutter C, the reel R is provided at the other end of the end where the tape folding mechanism is provided. By rotating the reel R, the adhesive tape T is supplied to the folding mechanism. The tape folding mechanism has a plate 1, an upper moving body 2, and a lower moving body 3.

(plate)
The plate 1 is a member for positioning the adhesive tape T. As shown in FIGS. 4 (a) and 4 (b), the plate 1 includes a support portion a1 for supporting the adhesive tape at its tip, and is an inclined surface inclined in the descending direction toward the opposite end of the support portion a1. have a2. The adhesive tape T supplied to the folding mechanism side of the tape is drawn so as to pass above the plate 1.

  The plate 1 includes a plate-like member 1b provided so that the vertical piece 1a rises on the upper surface. The thickness of the plate-like member 1 b can be, for example, about 2.5 mm. The vertical piece 1a is provided substantially at the center of the plate-like member 1b, and forms a T-shaped member in section with the plate-like member 1b. The height of the vertical piece 1a can be, for example, 10 mm. The vertical piece 1a and the plate-like member 1b are integrally formed of resin. Of the two pieces of the plate-like member 1b divided by the vertical pieces 1b, two rectangular projections 1c are provided on the upper surface of one piece on the tip side. The mold release material 11 is fitted into the projection 1c.

  Further, as shown in FIG. 4B, cylindrical projections 1d and 1e are provided on the other side of the plate member 1b so as to protrude from the side surface of the plate member 1b. The plate-like member 1 b is fixed to the tape cutter C by the projections 1 d and 1 e being fitted in the recesses provided in the tape cutter C. The plate-like member 1 b and the protrusions 1 c to 1 e are integrally formed of resin.

  As described above, the mold release material 11 is provided at the top end of the plate 1. The front end portion of the release material 11 is a support portion a1 that supports the adhesive tape T. Although the support part a1 can also be made into the front-end | tip part of the plate-shaped member 1b, it is preferable that the mold release material 11 is provided. This is because the release tape 11 can be prevented from adhering to the support portion a1 by the release material 11.

  As shown in FIG. 2B, the front end of the plate 1 can be disposed at a position lower than the height of the rotation axis of the reel R. The plate 1 is fixed to the tape cutter C such that the plate-like member 1b is inclined in the direction of descending from the support portion a1 to the end of the tape cutter C on which the reel R is supported. The upper surface of the plate-like member 1b is an inclined surface a2 which is inclined in the direction of descending from the support portion a1 toward the other end.

  Moreover, as shown to Fig.4 (a), the mold release material 12 is inserted by the upper part of the perpendicular | vertical piece 1a. The mold release materials 11 and 12 are formed of a material that makes it difficult for the adhesive surface of the adhesive tape T to adhere. For example, silicone resin can be used as the mold release members 11 and 12.

  As shown in FIG. 5, the mold release material 11 is a rectangular member, and has a plurality of projections 11a on one surface and two rectangular recesses 11b on the other surface. The thickness of the mold release material 11 can be, for example, about 3.0 mm. The mold release material 11 is fixed at the top end of the upper surface of the plate-like member 1 b by fitting the recess 11 b into the protrusion 1 c. Therefore, the surface having the plurality of projections 11 a is the upper surface of the inclined surface a 2 of the plate 1.

  When viewed from the upper surface, a plurality of semicircular convex portions 11 c are formed in the end portion of the mold release material 11, and a semicircular concave portion 11 d is formed between adjacent convex portions 11 b. That is, one end of the mold release material 11 is formed in a wave shape. The wave shape is a shape in which a plurality of convex portions 11c are formed at the end and the space between adjacent convex portions 11c is a concave portion 11d, and the shapes of the convex portion 11c and the concave portion 11d are not limited to semicircular. Any shape such as a square shape or a triangular shape may be used.

  When fixing the mold release material 11 to the plate-like member 1b, it fixes so that the edge part of a waveform becomes a tip. Accordingly, the end of the wave forms the support portion a1 that supports the adhesive tape T. The mold release material 12 is a member having a U-shaped cross section, and is fixed by being fitted to the upper portion of the vertical piece 1a.

(Upper mobile)
The upper moving body 2 is a member having a function of pressing the upper surface of the adhesive tape T. The upper moving body 2 is rotatably provided above the plate 1 and has a first surface opposite to the upper surface of the inclined surface a2. The adhesive tape T supplied to the tape folding mechanism side is pulled out so as to pass between the plate 1 and the upper moving body 2.

  As shown in FIG. 6 (a), the upper moving body 2 is a member having a substantially right-triangular cross section. As shown in FIG. 6B, a cylindrical protrusion 2a is integrally formed of resin at an end portion of the upper moving body 2 that forms an acute angle of a right triangle. The upper movable body 2 is fixed to the tape cutter C by the projections 2a being fitted in the recesses provided in the tape cutter C.

  Further, the upper moving body 2 is rotatably fixed to the tape cutter C with the projection 2 a as a rotation axis. On the inner side surface of the tape cutter C, protrusions 21 for restricting the rotation of the upper moving body 2 are provided to face each other. The upward rotation of the upper moving body 2 is restricted at a position where the upper moving body 2 forms an oblique side of a right triangle, that is, the upper surface 2 b is in contact with the projection 21.

  In the upper moving body 2, the surface formed by the side opposite to the acute angle at which the protrusion 2a is formed, that is, the lower surface is a horizontal surface 2c formed substantially horizontally. As shown in FIG. 3, the horizontal surface 2 c is formed to face the upper surface of the mold release material 11 of the plate 1. That is, the horizontal surface 2 c is a first surface facing the upper surface of the inclined surface a 2 of the plate 1. In the example of FIG. 3, although the horizontal surface 2c is facing via the inclined surface a2 and the mold release material 11, it can also be comprised so that the plate-shaped member 1b may be touched. The downward rotation of the upper movable body 2 is regulated at a position where the horizontal surface 2 c is in contact with the upper surface of the mold release material 11 of the plate 1.

  The horizontal surface 2c may be in contact with the inclined surface a2 via a space, as long as it can contact the upper surface of the adhesive tape T, or may be in close contact with the inclined surface a2. Similarly, as long as the lower surface of the upper moving body 2 can be in contact with the upper surface of the adhesive tape T, the lower surface does not necessarily have to be formed substantially horizontal.

  As shown to Fig.6 (a), the cylindrical recessed part 2d is provided in the horizontal surface 2c. A button-type permanent magnet M1 is fitted into the recess 2d and fixed by adhesion. Although an alnico magnet, a ferrite magnet, a neodymium magnet etc. can be used for the permanent magnet M1, it is preferable to use a neodymium magnet especially. The permanent magnet M1 is provided so as to face the permanent magnet M2 of the lower moving body 3 described later with a different polarity, and it is necessary to attract each other via the plate 1. For example, when the thickness of the plate-like member 1b of the plate 1 is 2.5 mm and the thickness of the release material 11 is 3.0 mm, the permanent magnets M1 and M2 attract each other through the plate 1 of 5.5 mm in total. . Under this condition, the magnet which the permanent magnets M1 and M2 preferably attract to each other is a neodymium magnet having the strongest magnetic force.

  Further, the permanent magnets M1 and M2 are required to be easily separated in the vertical direction by the upward force obtained when pulling out the adhesive tape T. That is, when the attractive force of the permanent magnets M1 and M2 is too strong, the permanent magnets M1 and M2 attract each other without separation, so the adhesive tape 1 can not be pulled out. Therefore, it is preferable that the permanent magnets M1 and M2 can attract each other through the plate 1 of 5.5 mm, for example, and have an attractive force that is easily released when the adhesive tape T is pulled out. Specifically, the strength of the permanent magnets M1 and M2 is preferably 200 GS.

  The upper surface 2b and the horizontal surface 2c of the upper moving body 2 are continuously formed via an inclined surface 2e which is inclined in a direction rising from the horizontal surface 2c to the upper surface 2b. Therefore, the corner formed by the upper surface 2 b and the inclined surface 2 e is the tip of the upper moving body 2.

  The upper surface 2 b of the upper moving body 2 is provided with a recess 22. The recess 22 is provided so as to gradually increase in depth from the top to the bottom. The lower side of the recess 22 has no corners and is formed in a rounded shape. An arc-shaped notch 23 is provided at a central portion of an end of the concave portion 22 on the adhesive tape T side. The notch 23 is formed by being cut from the recess 22 of the upper surface 2 b to the inclined surface 2 e.

(Lower moving body)
The lower moving body 3 is a member having a function of cutting the adhesive tape T and forming a tab at the tip of the adhesive tape T together with the upper moving body 2. The lower movable body 3 is rotatably provided below the plate 1 and has a second surface opposed to the lower surface of the inclined surface a2. As shown in FIG. 7A, the lower moving body 3 has a plate-like shape that supports the cutting portion 4 and the cutting portion 4 that protrudes outward beyond the support portion a1 of the plate 1 at the tip of the lower moving body 3. It has a member 3a.

  Further, the end of the plate member 3a is continuously formed so as to bend from the end of the plate member 3a, and in the direction of lowering toward the end portion of the tape cutter C on which the reel R is supported. An inclined shaft 3f is formed. As shown in FIG. 7B, in the shaft 3f, a cylindrical protrusion 3g is integrally formed of resin at an end opposite to the plate member 3a. The lower movable body 3 is fixed to the tape cutter C by the projections 3g being fitted in the recesses provided in the tape cutter C. The lower movable body 3 is rotatably fixed to the tape cutter C with the projection 3g as a rotation axis.

  As shown in FIG. 3, the upward rotation of the lower movable body 3 is restricted at a position where the plate member 3 a is in contact with the lower surface of the plate 1. On the other hand, as shown in FIG. 2B, the downward movement of the lower movable body 3 causes the lower surface on the tip end side of the lower movable body 3 to contact the stopper C1 provided so as to stand up from the base of the tape cutter C. Regulated by position.

  The tab length of the adhesive tape T formed in the present embodiment is the adhesive tape T drawn out between the cutting part 4 from the support part a1 of the plate 1 when the lower movable body 3 is in a position in contact with the stopper C1. It is about half the length of The length of the tab easy to pinch is several mm or more and 20 mm or less, and more preferably 5 mm or more and 10 mm or less. For example, if a tab of 10 mm is to be formed, the length of the adhesive tape T drawn between the cutting portion 4 from the support portion a1 of the plate 1 is 20 mm when the lower moving body 3 is in contact with the stopper C1. The height of the stopper C1 may be adjusted so that

  The plate-like member 3a has vertical pieces 3b, 3c and 3d provided to stand on the upper surface thereof. The vertical piece 3b is provided at the tip of the plate-like member 3a, and forms a member having an L-shaped cross section together with the plate-like member 3a. The height of the vertical piece 3b can be approximately equal to the height of the vertical surface 43 of the cutting portion 4 described later, for example, 10 mm.

  The vertical piece 3c is provided via the vertical piece 3b and a space. The space between the vertical pieces 3b and 3c has a width such that the cutting portion 4 described later can be inserted, and can be, for example, 0.5 mm. Further, the height of the vertical piece 3c can be lower than the height of the vertical piece 3b, for example, 7 mm. As shown in FIG. 7C, the vertical piece 3c has a root portion 31 continuous with the plate-like member 3a and a tip portion 32 thinner than the root portion 31. A protrusion 33 having a semicircular cross section is provided on the surface of the tip end portion 32 facing the vertical piece 3b. A recess is formed by the root portion 31, the tip portion 32, and the protrusion 33, and a protrusion 44 of the cutting portion 4 described later is fitted into the recess.

  The vertical piece 3d is provided via the vertical piece 3c and a space. The space between the vertical pieces 3c and 3d has a width such that the mold release material 5 described later can be inserted, and can be 5 mm, for example. Also, the height of the vertical piece 3d can be lower than the height of the vertical piece 3c, for example, 5.5 mm.

The vertical pieces 3b, 3c, and 3d protrude in the direction in which the tape is pulled out from the tip of the plate 1, that is, the support portion a1, when the plate-like member 3a contacts the lower surface of the plate 1.
Further, when the lower surface 2c of the upper moving body 2 is in contact with the upper surface of the plate 1 and the plate member 3a is in contact with the lower surface of the plate 1, the tip of the upper moving body 2 is separated between the vertical pieces 3c and 3d. Contact the mold material 5. As mentioned above, the cutting part 4 is inserted between the vertical pieces 3b and 3c. Accordingly, the tip of the upper moving body 2 and the blade 42 of the cutting portion 4 of the lower moving body 3 are arranged to have a predetermined distance.

  The plate-like member 3a has a cutting portion 4 at its tip and a cylindrical recess 3e at its other end. The plate-like member 3 a is formed such that a substantially horizontal horizontal surface defining the recess 3 e faces the lower surface of the plate 1. That is, the horizontal surface of the plate-like member 3 e is a second surface facing the lower surface of the inclined surface a 2 of the plate 1. Therefore, as apparent from FIG. 3, the horizontal surface 2 c of the upper moving body 2 and the plate-like member 3 a of the lower moving body 3 oppose each other via the plate 1 so as to be attracted by the attraction of the permanent magnets M 1 and M 2.

  A button-type permanent magnet M2 is fitted into the recess 3e and fixed by adhesion. Although an alnico magnet, a ferrite magnet, a neodymium magnet etc. can be used for the permanent magnet M2, as above-mentioned, it is preferable to use a neodymium magnet especially. The strength of the permanent magnet M2 is preferably 200 GS.

  A circular buffer material M3 is attached to the upper surface of the permanent magnet M2. As the buffer material M3, a member having flexibility such as urethane can be used. The buffer material M3 is not necessarily provided, but is preferably provided to one of the permanent magnets M1 or M2 from the viewpoint of preventing noise and vibration when the permanent magnets M1 and M2 attract each other. In addition, since the permanent magnet M1 has a function of pressing the adhesive tape T, contact and dissociation with the adhesive tape T is frequently repeated. Therefore, the shock absorber M3 is less likely to be peeled off if the permanent magnet M1 is provided to M2 than to the permanent magnet M1.

  The cutting part 4 and the mold release material 5 installed in the lower movable body 3 as described above will be described. The cutting unit 4 is a cutter for cutting the adhesive tape T. The cutting part 4 is inserted between the vertical pieces 3 b and 3 c of the lower moving body 3. As shown in FIG. 8, the cutting unit 4 has a horizontal surface 41 substantially parallel to the adhesive tape T, and a blade 42 provided at the tip of the horizontal surface. The blade 42 can be formed, for example, by providing a horizontal surface 41 of 2.5 mm and processing 0.5 mm of the tip into a saw shape.

  In the cutting part 4 of this embodiment, adhesive tape T adheres to the area which united the area of the horizontal surface 41 and the blade 42. As shown in FIG. That is, the adhesive tape T after cutting is in contact with the horizontal surface 41 and the blade 42 at, for example, 2.5 mm from the tip. If the width of the horizontal surface 41 and the blade 42 is too narrow, the tip of the adhesive tape T after cutting will be detached from the cutting portion 4. In addition, when the width of the horizontal surface 41 and the blade 42 is too wide, the adhesive surfaces of the adhesive tape T can not be attached to each other at the time of tab formation, and an appropriate tab can not be formed. Therefore, the width of the horizontal surface 41 and the blade 42 is preferably about 2 mm to 3 mm.

  In the horizontal surface 41, the end opposite to the end where the blade 42 is formed is bent substantially at a right angle to form a vertical surface 43. That is, the cutting part 4 is a member having an L-shaped cross section. The vertical surface 43 is formed in, for example, a plate shape having a height of about 10 mm. In the vertical surface 43, two protrusions 44 are provided on the surface opposite to the surface on which the blade 42 is provided. The projection 44 is formed by inserting two cuts parallel to a part of the vertical surface 43, and the portion sandwiched by the cuts is pushed out to the side opposite to the blade 41. When the cutting portion 4 is cut into the lower moving body 3, the protrusion 44 is fitted into the recess formed by the root portion 31, the tip portion 32 and the protruding portion 33 of the lower moving body 3.

  By setting the tip end portion of the lower movable body 3 and the cutting portion 4 to have the height as described above, the blade 42 is provided at a position higher than the support portion a1 of the plate 1. Further, in a state where the upper moving body 2 and the lower moving body 3 are in contact with the upper surface and the lower surface of the plate, respectively, the tip of the upper moving body 2 and the blade 42 of the lower moving body 3 face each other at substantially the same height.

  The mold release material 5 is a member that prevents the adhesive tape T from adhering to the lower moving body 3. As shown in FIG. 9, the releasing material 5 has a fixing portion 51 and a tip portion 52 thinner than the fixing portion 51. The fixing portion 51 is a portion fitted in the vicinity of the cutting portion 4, that is, between the vertical pieces c and d of the lower moving body 3, and is formed in a rectangular shape. The thickness of the fixing portion 51 can be 5 mm. The distal end portion 52 has a U-shaped cross section and is formed to project from one end side of the fixed portion. The thickness of the tip 52 can be 3 mm.

  As shown in FIG. 9C, a plurality of semicircular convex portions 53 are formed at the tip of the distal end portion 52 when viewed from the side, and a semicircular concave portion 54 is formed between adjacent convex portions 53. doing. That is, the tip of the mold release material 5 is formed in a wave shape. The wave shape is a shape in which a plurality of convex portions 53 are formed at the end and the space between the adjacent convex portions 53 is the concave portion 54, and the shapes of the convex portion 53 and the concave portion 54 are not limited to semicircular. Any shape such as a square shape or a triangular shape may be used.

  Further, a protrusion 53 a is formed at the tip of the protrusion 53. The protrusion 53a is formed such that the thickness of the tip of the protrusion 53a is further reduced by pinching the top of the protrusion 53. There is also a mode in which a point-like protrusion is formed at the top of the protrusion 53 as the protrusion 53a.

  The release material 5 is preferably provided also from the viewpoint of thermal expansion and contraction of the adhesive tape T. The pressure-sensitive adhesive tape T has different thermal expansion and contraction between the side with the adhesive and the side without the adhesive. For example, when the air temperature is 20 ° C. or more, the expansion of the surface without the adhesive is large, and the tape expands in the extending direction. Then, for example, even without the release material 5, it is possible to obtain a tab folded back above the cutting portion 4. On the other hand, when the air temperature is, for example, 20 ° C. or less, the heat shrinkage of the surface without the adhesive is large, and the tape shrinks in the shrinking direction. Then, for example, when the release material 5 is not present, the adhesive tape T shrinks and the folding back force to the lower side of the cutting portion 4 becomes strong, and a tab may not be formed.

[1.2. Operation]
The operation of the tape folding mechanism according to the present embodiment having the above-described configuration will be described with reference to FIGS. 10 (a) and 10 (b).

  As shown in FIG. 10A, by pulling out the adhesive tape T, the attractive force of the permanent magnet M1 of the upper moving body 2 and the permanent magnet M2 of the lower moving body 3 is released. Then, the upper moving body 2 is rotated upward, and the lower moving body 2 is rotated downward to a position in contact with the stopper C1 of the tape cutter C.

  In a state where the adhesive tape T is in contact with the cutting portion 4, the adhesive tape T is in contact with the tip of the mold release material 11 which is the support portion a 1 of the plate 1 and the tip of the mold release material 5 of the lower moving body 3. The plate 1 has the inclined surface a2 which is inclined in the downward direction from the support portion a1 to the other end, so the adhesive tape T only contacts the support portion a1 without contacting the plate 1 with the adhesive tape.

  In this state, when the adhesive tape T is cut, the tip portion of the cut adhesive tape T is in close contact with the horizontal surface 41 and the blade 42 of the cutting portion 4. Then, when the upper moving body 2 pivots downward, attractive forces of the permanent magnets M1 and M2 work, and the lower moving body 3 pivots upward almost simultaneously.

  At this time, as shown in FIG. 10B, the lower surface 2c of the upper moving body 2 is held between the release member 11 of the plate 1 and the pressure-sensitive adhesive tape T from above. Therefore, even if the lower movable body 3 continues to rotate upward, the pulled-out adhesive tape T does not return to the reel R side, and it is in a bent state between the plate 1 and the lower movable body 3. The adhesive tape T smoothly separates from the mold release material 5 of the lower moving body 3 in the bent state.

  Further, of the adhesive tape T drawn out between the support portion a1 of the plate 1 and the blade 42 of the lower moving body 3, the upper surface of the adhesive tape T on the supporting portion a1 side rotates the lower moving body 3 upward. Touch the tip of the upper moving body 2 on the way. The tip of the upper moving body 2 regulates the position of the adhesive tape T, and the adhesive tape T is folded back. When the lower movable body 3 is further rotated upward and contacts the lower surface of the plate 1, the adhesive surfaces of the adhesive tape T have a space between the tip of the upper movable body 2 and the cutting portion 4 of the lower movable body. Opposite tabs are formed through. When the tab is formed, the adhesive tape T is in contact with the top surfaces of the mold release members 11 and 12.

  At this point in time, the adhesive surfaces of the adhesive tape T are not attached to each other, and the operator picks the tab to form a tab in which the adhesive surfaces are attached to each other. Every time the operator picks the tab and pulls off the adhesive tape T having a desired length and cuts it, the leading end of the tape is folded back to form the tab. In drawing out, cutting, and forming the tab of the adhesive tape T, there occurs a timing when the mold release members 5, 11 and 12 come into contact with the adhesive tape T, respectively. Therefore, the mold release members 5, 11, 12 are appropriately dissociated along with each operation.

[1-3. Action effect]
The operation and effects of the tape folding mechanism of the present embodiment having the above-described configuration will be described below.
(1) A tape folding mechanism provided on one end side of the tape cutter C for cutting the adhesive tape T, including a support portion a1 at the tip end for supporting the adhesive tape T, from the support portion a1 to the other end A plate 1 having an inclined surface a2 inclined in a downward direction, an upper moving body 2 rotatably provided above the plate 1 and having a first surface opposite to the upper surface of the inclined surface a2; A lower moving body 3 rotatably provided at the lower side of 1 and having a second surface opposite to the lower surface of the inclined surface, and the first surface and the second surface face each other with different polarities The lower moving body 3 has a cutting portion 4 which has a horizontal surface 41 substantially parallel to the adhesive tape T and a horizontal surface 41 of the horizontal surface 41. With blade 42 at the tip, Between the blade 42 of the tip and the lower moving body 4 of the body 2 is arranged to have a predetermined interval.

  With the above configuration, it is possible to provide a tape folding mechanism capable of reliably forming a tab. In particular, since the plate 1 has the inclined surface a2 which is inclined in the downward direction from the support portion a1 toward the other end, the pulled-out adhesive tape T can be prevented from contacting the plate 1. Since the adhesive tape T can be reliably pressed by the upper moving body 2 having the plate 1 and the first surface facing the inclined surface a2 of the plate 1, the adhesive tape T after cutting may return to the reel R side Rather, the tabs are formed reliably.

  The cutting unit 4 also has a horizontal surface 41 substantially parallel to the adhesive tape T, and a blade 42 provided at the tip of the horizontal surface 41. Therefore, when the lower moving body 3 rotates upward after cutting the adhesive tape T, the tip of the adhesive tape T after cutting does not separate from the blade 42. Further, the tip of the upper moving body 2 and the blade 42 of the lower moving body 3 are arranged to have a predetermined distance. Therefore, when the lower movable body 3 is rotated upward after the adhesive tape T is cut, the adhesive surfaces of the adhesive tape T stick to each other on the way, and the tab can not be formed.

(2) The plate 1 is provided with the mold release material 11, and the mold release material 11 has a surface having a plurality of projections which are inclined surfaces, and a corrugated end which is the support portion a1. As described above, when the adhesive tape T is pulled out, the adhesive tape is in contact with the support portion a1. When the tab is formed, the adhesive tape T may be in contact with the inclined surface a2 of the plate 1. However, the provision of the release material 11 prevents the adhesive tape in contact with the plate 1 from adhering. Moreover, since the mold release material 11 has the edge part of a waveform, and the several processus | protrusion 11a, it contacts with the adhesive tape T at a point instead of a surface. Therefore, the adhesive tape T is more easily dissociated.

(3) The plate 1 has the vertical piece 1b provided so as to rise from the inclined surface a1, and the mold release material 12 is provided at the tip of the vertical piece 1b. Since the plate 1 has the inclined surface a1, the contact of the adhesive tape T is prevented. However, as shown in FIG. 10 (b), when the upper moving body 2 is holding the adhesive tape T, the upper moving body 2 is more likely to be in contact with the inclined surface a1. In the present embodiment, since the vertical piece 1b is provided on the inclined surface a1, by bringing the adhesive tape T into contact with the vertical piece 1b, adhesion of the adhesive tape T to the inclined surface a1 is prevented. Since the mold release material 12 is also provided at the tip of the vertical piece 1b, adhesion of the adhesive tape to the vertical piece 1b is also prevented.

(4) A rounded concave portion 22 is provided on the upper surface of the upper moving body 2, and an arc-shaped notch 23 is formed in the central portion of the lower end of the concave portion 22. By providing the recess 22 and the notch 23 on the upper surface of the upper movable body 2, the operator can easily grip the tab. Therefore, the workability is improved.

(5) The tip of the upper moving body 2 and the blade 42 of the lower moving body 3 are provided to face each other at a predetermined height. Therefore, in the tab formed between the tip of the upper moving body 2 and the cutting portion 4 of the lower moving body, the bottom sides of the two adhesive surfaces which are folded back and face each other have the same height. That is, since the areas of the adhesive surfaces are substantially the same, when the operator picks the tab, the adhesive surfaces are beautifully attached to each other.

(6) The cushioning material M3 is attached to the permanent magnet M2 provided on the lower moving body 3. Therefore, noise and vibration can be prevented when the permanent magnets M1 and M2 attract each other. In particular, by preventing the vibration, it is possible to prevent the permanent magnets M1 and M2 from being detached by the vibration. Further, since the permanent magnet M2 of the lower moving body 3 is not in contact with the adhesive tape T, the cushioning material M3 is not peeled off by repeating the separation and contact so that the adhesive tape T is rubbed.

(7) The third mold release material 5 is provided in the vicinity of the side where the adhesive tape T is pulled out in the cutting unit 4, and the third mold release material 5 is formed in a corrugated shape at the tip end to form the corrugated shape The projection 53 a is provided at the tip of the projection 53. When cutting the adhesive tape T at the cutting unit 4, the operator brings the adhesive tape T into contact with the blade 42 with the strongest force. By providing the mold release material 5, it is possible to prevent the adhesive tape T from being in close contact with the member in the vicinity of the cutting portion 4. Since the mold release material 5 has a corrugated tip at the tip and further has a protrusion 53a at the convex portion 53, even if a strong force is applied to the adhesive tape T, the adhesive tape T does not have a surface but a point Contact. Therefore, the adhesive tape T is more easily dissociated.

(8) The permanent magnets M1 and M2 are neodymium magnets and have a strength of 200 GS. Therefore, the upper moving body 2 and the lower moving body 3 can attract each other through the plate 1. Further, the upper moving body 2 and the lower moving body 3 can be easily separated in the vertical direction by the upward force obtained when pulling out the adhesive tape T.

[3. Other Embodiments]
In the above embodiment, the downward rotation of the lower movable body 3 is restricted by the stopper C1 provided so as to stand up from the base of the tape cutter C. However, the stopper C1 does not necessarily have to be fixed at a fixed position, and the height may be variably provided to have a plurality of restricted positions. For example, the stopper C1 can be configured to slide up and down.

  As described above, the length of the tab of the adhesive tape T to be formed is the adhesive tape T drawn between the cutting portion 4 from the support portion a1 of the plate 1 when the lower moving body 3 is in a position contacting the stopper C1. It is about half the length of Therefore, the length of the tab to be formed can be adjusted by variably providing the height of the stopper C1.

C: Tape cutter C1: Stopper M1, M2: Permanent magnet M3: Buffer material R: Reel T: Adhesive tape 1: Plate a1: Support portion a2: Inclined surface 1a: Vertical piece 1b: Plate member 1c, 1d, 1e ... Protrusions 5, 11, 12, release members 11a: protrusions 11b: recesses 11c: protrusions 11d: recesses 2: upper moving body 2a: protrusions 2b: upper surface 2c: horizontal surface 2d: recesses 2e: inclined surfaces 21: protrusions 22: recesses 23 ... Notch 3 ... Lower movable body 3a ... Plate-like member 3b, 3c, 3d ... Vertical piece 3e ... Concave portion 3f ... Shaft portion 31 ... Root portion 32 ... Tip portion 33 ... Projection portion 4 ... Cutting portion 41 ... Horizontal surface 42 ... Blade 43: vertical surface 44: projection 51: base portion 52: tip portion 53: convex portion 53a: projection 54: concave portion

Claims (8)

A tape folding mechanism provided on one end side of a tape cutter for cutting an adhesive tape, comprising:
A plate having a support portion for supporting the adhesive tape at its tip, and having an inclined surface inclined in the direction of descending from the support portion toward the other end;
An upper moving body rotatably provided above the plate and having a first surface facing the upper surface of the inclined surface;
A lower movable body rotatably provided below the plate and having a second surface opposite to the lower surface of the inclined surface;
Each of the first surface and the second surface has permanent magnets provided to face each other with different polarities,
The lower moving body has a cutting portion, and the cutting portion has a horizontal surface substantially parallel to the adhesive tape, and a blade provided at the tip of the horizontal surface.
The tip of the upper moving body and the blade of the lower moving body are arranged to have a predetermined distance ,
The plate has a vertical piece provided to rise from the inclined surface,
A first release material is provided at the tip of the vertical piece;
Tape folding mechanism characterized by A tape folding mechanism provided on one end side of a tape cutter for cutting an adhesive tape, comprising:
A plate having a support portion for supporting the adhesive tape at its tip, and having an inclined surface inclined in the direction of descending from the support portion toward the other end;
An upper moving body rotatably provided above the plate and having a first surface facing the upper surface of the inclined surface;
A lower movable body rotatably provided below the plate and having a second surface opposite to the lower surface of the inclined surface;
Each of the first surface and the second surface has permanent magnets provided to face each other with different polarities,
The lower moving body has a cutting portion, and the cutting portion has a horizontal surface substantially parallel to the adhesive tape, and a blade provided at the tip of the horizontal surface.
The tip of the upper moving body and the blade of the lower moving body are arranged to have a predetermined distance,
A rounded concave portion is provided on the upper surface of the upper movable body, and an arc-shaped notch is formed in a central portion of an end portion on the adhesive tape side of the concave portion.
Tape folding mechanism characterized by A tape folding mechanism provided on one end side of a tape cutter for cutting an adhesive tape, comprising:
A plate having a support portion for supporting the adhesive tape at its tip, and having an inclined surface inclined in the direction of descending from the support portion toward the other end;
An upper moving body rotatably provided above the plate and having a first surface facing the upper surface of the inclined surface;
A lower movable body rotatably provided below the plate and having a second surface opposite to the lower surface of the inclined surface;
Each of the first surface and the second surface has permanent magnets provided to face each other with different polarities,
The lower moving body has a cutting portion, and the cutting portion has a horizontal surface substantially parallel to the adhesive tape, and a blade provided at the tip of the horizontal surface.
The tip of the upper moving body and the blade of the lower moving body are arranged to have a predetermined distance,
A shock absorbing material is attached to the permanent magnet provided on the lower moving body,
Tape folding mechanism characterized by The plate is provided with a second release material,
The second mold release material according to any one of claims 1 to 3, wherein the second mold release material has a surface having a plurality of projections which become the inclined surface, and an end of a wave shape which becomes the support portion. The tape folding mechanism described in Item .   The tape folding mechanism according to any one of claims 1 to 4, wherein a tip of the upper moving body and a blade of the lower moving body are provided to face each other at a predetermined height. A third release material is provided in the vicinity of the cutting portion,
The tape folding mechanism according to any one of claims 1 to 5, wherein the third mold release material has a tip formed in a waveform and has a protrusion at the tip of a convex portion forming the waveform. . The tape folding mechanism according to any one of claims 1 to 6 , wherein the permanent magnet is a neodymium magnet and has a strength of 200 GS. Providing a stopper for restricting downward rotation of the lower moving body;
The tape folding mechanism according to any one of claims 1 to 7 , wherein the stopper has a plurality of regulated positions.